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Here, my friends, is the bracket you’re up against in your effort to win a free Landmark subscription.
FIRST ROUND WINNERS: Kentucky, Purdue, Buffalo, Valparaiso, Texas, Notre Dame, Wichita State, Kansas, Wisconsin, Oregon, Wofford, North Carolina, Mississippi, Baylor, VCU, Arizona, Villanova, North Carolina State, Northern Iowa, Louisville, Providence, Oklahoma, Michigan State, Virginia, Duke, St.
SWEET SIXTEEN: Kentucky, Buffalo, Texas, Wichita State, Wisconsin, North Carolina, Baylor, Arizona, Villanova, Northern Iowa, Providence, Virginia, Duke, Stephen F. ELITE EIGHT: Kentucky, Wichita State, Wisconsin, Baylor, Northern Iowa, Virginia, Duke, Gonzaga. Grab a snack and your favorite beverage and settle in near a TV during some of the tournament games.
If hired, your first assignment is to interpret this email sent out recently by Beverlee Roper, first district county commissioner in Platte County. Heard an interesting observation recently by someone in regard to the wild and crazy growth projections school districts like Park Hill and Platte County R-3 have been spouting recently. When even those observers on the left side of the aisle are questioning projections of exploding enrollment, you know the school districts have a bit of a credibility problem on their hands. Guy Speckman, publisher of the Savannah Reporter, has been on a roll with observations about public school spending, hitting home runs on a weekly basis. The book entitled The Silence, The Series and The Season of Sungwoo by our man Chris Kamler becomes available this week.
While many of us see an intersection of two state highways and think that would be a great place for a revenue-generating, respected public-serving entity like a QuikTrip, many folks at Parkville see an intersection of two major highways and think that would be a great place to plant a pawpaw tree or build a tribute to the hummingbird. Oh, and there’s more than just a scathing state audit facing some folks within the St.
As Guy Speckman, publisher of the Savannah Reporter, wisely says in his column in our Other Voices item on this page, it should be a wake-up call for all local governments and the elected officials who serve on governing bodies.
It’s time for those who serve on boards to stop nodding heads in agreement at every proposal placed in front of them and start asking some tough questions of those who serve underneath them. Based on what I’m about to remind you, there would seem to be reason to at least put this topic on your radar.
In a story we did last April, The Landmark reported that Platte County R-3 had re-hired Westbrook and Co.
Reik explained he used a rubric to determine which company was the best firm to meet the needs of the district. In that same Landmark article from last April in discussing why he recommended taking Westbrook over the lower bidder, it was reported that Reik said Westbrook officials are very helpful. Congressman Sam Graves came walking into The Landmark office Friday afternoon carrying his lunch, which was a bag of fast-food from Sonic. We saw this play out in 2011 and 2012 when projections of rapid and enormous growth in student enrollment at Platte County R-3 were making the rounds.
If that’s the case, Park Hill is now projecting a growth rate of as high as 666 students per year.
We do know of a common denominator involved in those earlier wildly incorrect growth projections made at Platte County R-3 and the new ones being made at Park Hill.
Architects make good money off of the construction of large, new, expensive buildings, am I right? Even one of the biggest government bureaucrats around, first district Platte County Commissioner Beverlee Roper, has been known to preach repeatedly against public debt. Check out the letter to the editor on this page for the first return volley against Reik’s comment.
My guess is that if R-3 had a very low amount of debt per student, proponents of the proposed tax increase would be touting that as a very positive sign of the district’s fiscal health and past financial management practices. After many hours of thoughtful deliberation (in other words, in a 30-second conversation that consisted of yelling to each other while walking out separate doors of a building), Chris Kamler and I have decided upon a date, place and time for his book signing event in Platte County. His book is about the Kansas City Royals and that Korean dude who flew in during the Royals’ magical 2014 season. We’ll have the official Landmark Newspaper Plinko board set up for anyone willing to give it a whirl.
You’ve read stories in this fine newspaper about crimes occurring at Platte County hotels in what is known as the KCI corridor along Interstate 29. Last week’s event that you saw on our front page featured gunshots when perpetrators fired at a person who had spotted someone in his pickup in a hotel parking lot.
If hotel staff members are debating whether a situation warrants a call to 9-1-1, that’s when they need to call 9-1-1, Lewis said.
Sheriff Owen backed up the KC police official’s concerns about shoplifting in the corridor. So public transportation, the lack of which is cursed by economic development officials who blame it in part for a perceived shortage in available workforce, has its downside in the law enforcement arena.
FYI, Lewis mentioned the Kansas City Police Department’s North Patrol division leads the Kansas City metro area in the number of vehicles stolen while the engine is running with the doors unlocked. Does the Quality Platte County R-3 Schools committee realize the owner of the consulting firm they hired has compared their election campaign to O-rings under a toilet? A reader sent me this question: If the Platte County R-3 proposal is so great why do they need a nationally-known political consultant to make their case? Word on the street is that the Quality Platte County R-3 Schools committee will be using a political consulting firm in an effort to help it pass the proposed 43-cent tax levy increase in the April 7 election. The political consulting firm that has been contacted by Quality Platte County R-3 Schools?
Laura Hulett, deputy treasurer for the Quality Platte County R-3 Schools committee, would not verify whether the committee has hired a consulting firm.
Two weeks ago I reached Roe on his cell phone to ask him whether his company has struck a deal to assist the R-3 pro-tax group. Roe told me he didn’t know if his company has a deal in place with the R-3 pro-tax committee.
These are the types of conversations that two guys who generally don’t give a crap have with one another. If you take some time to digest the situation in its entirety, let’s not be totally shocked by the alleged partnership of R-3 pro-taxers with the normally anti-tax firm of Axiom. Axiom did work for a Kansas City zoo tax proposal not too many years ago, so this wouldn’t be the first time it has consulted on the pro-tax side of an issue. Sources inside the administration building say Nancy Armstrong, new county clerk, has disposed of at least one of the employees she had inherited from previous clerk Joan Harms. Check out the coverage of a couple of important local business stories on our front page this week by assistant editor Valerie Verkamp.
And what about the gunfire outside a Platte County hotel after a witness approached three black males who were allegedly performing smash-and-grabs upon vehicles in the parking lot?
No matter how hectic a day I might be having, when I see someone about to walk in the front door of the local license bureau office I realize my day isn’t so bad after all. There are some interesting-looking dudes and dudettes doing business at that location every day. Kansas City-area community centers are throwing out vending machines and switching to healthy food snack options, so from now on you’ll have to sneak in your own Twinkies and Ho Hos. Some of the early reaction by county commissioners to the four proposals for Shiloh Springs Golf Course that came in from potential management firms is fascinating.
Beverlee Roper, first district county commissioner, must have had a good night’s sleep the night before because she actually seemed focused and on point for most of the Shiloh discussion. Other than that Groundhog Day reference which thankfully was ignored by the other two commissioners, Roper made some common sense comments and observations, which means by next meeting she’ll be ready to run from the stances she took this week. Roper pointed out it looks to her that Shiloh was designed postage stamp style on a piece of property, rather than flowing in a more unlimited manner that a golf course designer probably would have liked. Duane Soper, second district commissioner who is a golfer and user of the Shiloh course, countered that he thinks Shiloh can one day make money. Now is the time to start focusing on ways to cut losses, move on and get rid of the annual financial drain.
There’s a lot of studying that will need to be done to sift through the gory details of Martin’s proposal, but my first reaction?
And here’s another benefit, especially for supporters of the parks department who may not be avid golfers.
As you’ll see in our story inside this issue, Parkville and Platte City have police budgets that amount to an expenditure of $229 per resident. According to information gathered by DJ Gehrt, city administrator for Platte City, Riverside’s police budget equates to $1,006 per resident of Riverside. As your Landmark heads to press Wednesday, we’re being told the thermometer will hit 70 degrees later this afternoon. That being said, I wouldn’t mind having to kick my pickup into four-wheel drive at least once this winter. The Quality Platte County R-3 Schools committee, the campaign organization promoting passage of the 43-cent tax levy question on the April ballot, is already at work. In 2012, Platte County R-3’s levy increase proposal was soundly defeated 55% opposed to 45% in favor.
We will assume that’s a Platte City address, though the paperwork does not list the city, state or zip.
Deputy treasurer is listed as Laura Hulett, who is employed as a public relations person by the school district.
Missouri Ethics Commission finally posted a copy of the agreement it reached with the Park Hill School District after Park Hill was found to have committed an ethics violation (see Landmark front page in Jan. Conditions were a little weird covering President Obama’s trip to the region Thursday. I don’t know who was in charge of deciding in what setting this speech would be held, but it turned into a barn-like event inside what they called the Anschutz Sports Pavilion. This was my fourth time covering an Obama appearance in the KC area, Valerie’s third.
Tuesday night I headed to City Hall in downtown Platte City for a meeting of the economic development subcommittee. These various Platte City subcommittee meetings, while often newsworthy, are also often very short.
We did get to hear a presentation from Bo Woodruff about AMVETS’ fundraising efforts to acquire a tankchair, which is a heavy duty off-road wheelchair. If you’re wondering how acquiring a tricked out wheelchair for community use winds up being tagged as an economic development discussion, join the club. While I strongly support the acquisition of the contraption, hope the fundraising effort is successful, and agree the wheelchair would be beneficial to local disabled persons, I would not anticipate a flood of new economic activity being generated because of it. Next on the agenda for the economic development subcommittee was an item dealing with shredding of older city documents.
Platte City Mayor Frank Offutt let it be known that the city turns 175 years old in 2015 and there will be some kind of celebration--or at least an observance of some sort--tentatively set for Saturday, July 4.
The mayor also informed the economic development subcommittee that an anchor from the USS Platte, a former fleet oiler vessel, is available to the city. The mayor indicated the anchor will be placed in the city’s small park next to the Platte River at the foot of Main Street, which has a name but most of us only know it as the small park next to the Platte River at the foot of Main Street. It has been great to have the skills of assistant editor Valerie Verkamp back on The Landmark news beat the past couple of weeks. Occasionally it becomes time to clean out my news notebooks, review those sticky notes attached to my desk and place any news nuggets into this column space before I forget to get them distributed to the fine readers of this newspaper.
In a micro gas turbine engine, a capacitive sensor is used for measuring a tip clearance of a radial compressor section thereof, and an actuator is used for axially displacing a rotor shaft in response to an output from the capacitive sensor. TECHNICAL FIELDThe present invention relates to a micro gas turbine engine provided with an active tip clearance control.BACKGROUND OF THE INVENTIONEnvironmental concerns and increased demands for efficient utilization of available energy resources have prompted the development of various forms of power units. Then you’ll like Coursera, a new organization from which several prominent universities aim to offer free high quality online courses to anyone, anywhere. Whether you’re interested in Humanities, Social Sciences, Healthcare, Medicine, Biology, Math, Statistics, Economics, Finance, Business, Society, Networks, Information, or Computer Science, all classes are completely free and taught online. A handful of classes start this month, and many more begin in May, June, July, August, September, November, while others are still listed as To Be Announced. Hopefully they come out with an iPad app similar to Khan Academy for easier self-paced learning and for those who wish to follow along more casually.
Subscribe to the OSXDaily newsletter to get more of our great Apple tips, tricks, and important news delivered to your inbox! You hear that term quite often this time of year when the NCAA Tournament Selection Committee is making choices for at-large berths into the men’s college basketball championship tournament. Unless the city has evidence of wrongdoing--which it apparently does not have at this point, despite some occasionally unsavory accusations--Nan should let this one go. The eye test also says the current mayor squirms a bit in her chair when Jones speaks up at meetings.
Roper fired off the email to a circle of friends and alleged supporters, at least one of whom wanted to be sure that I saw it. Either way, if you’re a taxpayer to the Platte County R-3 district you helped pay the tab. This observation came from the Line Creek Loud Mouth blog, a blog not known for conservatism, by the way. We pay people administrative salaries, yet give them menial job tasks that could be done by far less expensive employees. We’ll have some available for purchase in The Landmark office, 252 Main Street, Platte City. This time, there is no McDonald’s included in the site plan for the intersection of Highway 45 and Highway 9.
Joseph School District had been using the same auditing firm, Westbrook and Company, that Platte County R-3 has used for years? Employees who work at management levels inside school districts and other units of government often develop friendly relationships with particular firms. The district chose an auditing firm with a price 26% higher than an equally qualified bidder. Platte County Sheriff Mark Owen dropped in our office Tuesday afternoon and commented he was on his way back to his office and had lunch sitting in his car. The Landmark was at a meeting of the Park Hill School Board in December when it was remarked the district has grown by about 150 students per year over the past 30 years. That seems the stuff of fairy tales, fantasies, and revenue projections at the county golf course. The common denominator is that there has been input in developing those projections by the architectural firm Hollis and Miller.
If you don’t know what The Landmark Plinko board is, check out a recent picture posted on my Facebook page. Thugs are breaking into vehicles and stealing items in what the police call smash-and-grab crimes. It was recovered near 82nd and Troost in Kansas City, unoccupied, obviously with holes in the windshield. It pisses me off,” said Major Roger Lewis, division commander of the North Patrol Division for the Kansas City Police Department, about the rising number of crimes in the KCI corridor.
Owen says since the public transportation bus stop was put in near Wal-Mart on Barry Road shoplifting in that area has seen a marked increase. Kansas City police and the Platte County Sheriff’s Department have formed a task force to study the issue of crime in the KCI corridor and what steps can be taken by law enforcement to prevent incidents and to solve the ones that do occur. The only sources declining the opportunity to confirm it are the official spokespeople for Axiom and the campaign committee. Axiom Strategies has built a name for itself by fighting against things like tax increases, not in favor of them. Roe was in Texas that day, a state where he is spending much time in helping to guide the likely presidential campaign of Texas Senator Ted Cruz.



Not only did it have an ill-advised, poorly-timed proposal it was trying to sell, but to make matters worse R-3’s pro-tax increase campaign was outfoxed and unprepared in 2012 when its levy question was hammered by voters 55-45%. Dairy Farmers of America announces it is moving out of Platte County the same week that Valerie was already doing a feature story on efforts the Platte County Economic Development Council makes to retain existing businesses in the county.
Gotta say I think a reality show or video podcast based on the adventures of the attorneys and defendants who enter the hallowed halls of the Owens Lee Hull Jr.
See our front page story for more details, but I’ll summarize some of the highlights that hit me while sitting in on their discussion Monday. A couple of times she actually sounded like the promising 2012 candidate Roper instead of the hugely disappointing officeholder Roper.
Like many of us with no emotional investment in the sport of golf, Roper doubts Shiloh will ever make money. He also said he does not want the county to sell Shiloh, using the defense that taxpayers have already spent $10 million over the years at the golf course. That fits the wishes of Soper and others like him who don’t want the course to go away. Getting rid of Shiloh frees up many $$$ that can be used on other park projects, projects that wouldn’t be developed by private industry.
Based on some questions they’ve posed in an online survey, it looks like the Vote Yes side has determined its magic number is 2,000, as in they believe it will take 2,000 yes votes for the issue to pass.
That same address on NW 126th is listed as the address for the organization’s treasurer, Vic Perrin.
14 issue) in last year’s laptop levy campaign that was hammered by voters 61% opposed to only 39% in favor. Under the deal, Park Hill must adopt a procedure that, in the future, the superintendent or his designee will review all publicly-funded informational items related to ballot issues prior to distribution. As you know by now and can see on our front page, the president came to Lawrence for a speech at Kansas University. Yes that sounds indoors, I understand, but there were doors open on the backside of the audience next to the media tables. Of course since we featured Bo and this topic on the front page a couple of weeks ago, Landmark readers are well aware of this topic. It did seem like an odd setting for Bo’s fine presentation, but apparently the city leadership believes every potential topic for the full board of aldermen needs to be vetted by some subcommittee. On Tuesday night there was at least one piece of newsworthiness to come out of that hour of our lives that we’ll never get back. Please duly note the dates of the Big 12 Tournament and let’s not schedule your book signing to conflict with those days. If you missed her byline there for a bit, it’s because Valerie was enjoying a winter-time tropical vacation to an undisclosed location.
There is absolutely no truth to the rumor that her boss back at The Landmark ordered the attack by the squishy fish assassin as some sort of payback for leaving him temporarily overworked. Because the capacitive change gives an accurate measure of the size of the tip clearance, a particularly high sensitivity can be achieved in parts where the tip clearance is small, thereby providing a highly precise tip clearance control.
The gas turbine engine according to claim 1, wherein a working end of said actuator engages said rotor shaft via a lever mechanism.
The gas turbine engine according to claim 1, wherein said actuator comprises a piezo actuator. The gas turbine engine according to claim 1, wherein a working end of said actuator engages said rotor shaft via a rotational coupling. The gas turbine engine according to claim 1, wherein a working end of said actuator engages said rotor shaft via a magnetic coupling. The gas turbine engine according to claim 1, wherein said actuator comprises a flapper nozzle adapted to impinge an air flow onto an end of said rotor shaft. The gas turbine engine according to claim 1, wherein said rotor shaft is integrated with said turbine wheel and said compressor wheel as a single-piece unit.
The gas turbine engine according to claim 7, wherein said single-piece unit is made of ceramic material. The gas turbine engine according to claim 1, wherein said rotor shaft is integrated with said turbine wheel or said compressor wheel as a single-piece unit. The gas turbine engine according to claim 1, wherein said controller is adapted to control said tip clearance according to a feedback mechanism.
The gas turbine engine with a tip clearance control according to claim 10, wherein said controller is adapted to control said tip clearance according to a prescribed schedule. The gas turbine engine according to claim 12, wherein said actuator comprises a piezo actuator. The gas turbine engine according to claim 12, wherein a working end of said actuator engages said rotor shaft via a lever mechanism. The gas turbine engine according to claim 12, wherein a working end of said actuator engages said rotor shaft via a rotational coupling. The gas turbine engine according to claim 12 wherein a working end of said actuator engages said rotor shaft via a magnetic coupling. The gas turbine engine according to claim 12, wherein said actuator comprises a flapper nozzle adapted to impinge an air flow onto an end of said rotor shaft.
The gas turbine engine according to claim 12, wherein said rotor shaft is integrated with said turbine wheel and said compressor wheel as a single-piece unit. The gas turbine engine according to claim 18, wherein said single-piece unit is made of ceramic material.
The gas turbine engine according to claim 12, wherein said rotor shaft is integrated with said turbine wheel or said compressor wheel as a single-piece unit.
The gas turbine engine according to claim 12, wherein said controller is adapted to control said tip clearance according to a feedback mechanism. The gas turbine engine with a tip clearance control according to claim 21, wherein said controller is adapted to control said tip clearance according to a prescribed schedule. The gas turbine engine according to claim 12, wherein said second electrode and said third electrode are arranged to be aligned substantially with the edge of one common rotor blade. The gas turbine engine according to claim 12, wherein said second electrode and third electrode are arranged substantially along a common circumference so as to align with different rotor blades.
The gas turbine engine according to claim 12, wherein at least one of said second and third electrodes is surrounded by a substantially annular guard electrode. The gas turbine engine according to claim 26, wherein said actuator comprises a piezo actuator. The gas turbine engine according to claim 26, wherein a working end of said actuator engages said rotor shaft via a lever mechanism. The gas turbine engine according to claim 26, wherein a working end of said actuator engages said rotor shaft via a rotational coupling.
The gas turbine engine according to claim 26, wherein a working end of said actuator engages said rotor shaft via a magnetic coupling.
The gas turbine engine according to claim 26, wherein said actuator comprises a flapper nozzle adapted to impinge an air flow onto an end of said rotor shaft. The gas turbine engine according to claim 26, wherein said rotor shaft is integrated with said turbine wheel and said compressor wheel as a single-piece unit.
The gas turbine engine according to claim 32, wherein said single-piece unit is made of ceramic material. The gas turbine engine according to claim 26, wherein said rotor shaft is integrated with said turbine wheel or said compressor wheel as a single-piece unit.
The gas turbine engine according to claim 26, wherein said controller is adapted to control said tip clearance according to a feedback mechanism.
The gas turbine engine with a tip clearance control according to claim 35, wherein said controller is adapted to control said tip clearance according to a prescribed schedule.
The gas turbine engine according to claim 37, wherein one of said electrodes comprises an annular part surrounding at least one other said electrodes.
The gas turbine engine according to claim 37 or claim 38, wherein said actuator comprises a piezo actuator.
The gas turbine engine according to claim 37 or claim 38, wherein a working end of said actuator engages said rotor shaft via a lever mechanism. The gas turbine engine according to claim 37 or claim 38, wherein a working end of said actuator engages said rotor shaft via a rotational coupling. The gas turbine engine according to claim 37 or claim 38, wherein a working end of said actuator engages said rotor shaft via a magnetic coupling.
The gas turbine engine according to claim 37 or claim 38, wherein said actuator comprises a flapper nozzle adapted to impinge an air flow onto an end of said rotor shaft. The gas turbine engine according to claim 37 or claim 38, wherein said rotor shaft is integrated with said turbine wheel and said compressor wheel as a single-piece unit.
The gas turbine engine according to claim 44, wherein said single-piece unit is made of ceramic material. The gas turbine engine according to claim 37 or claim 38, wherein said rotor shaft is integrated with said turbine wheel or said compressor wheel as a single-piece unit.
The gas turbine engine according to claim 37 or claim 38, wherein said controller is adapted to control said tip clearance according to a feedback mechanism. The gas turbine engine with a tip clearance control according to claim 47, wherein said controller is adapted to control said tip clearance according to a prescribed schedule.
Check out the ample parking space available on Platte City’s Main Street at most hours of the day. Do you know how much money the park tax will generate this year if it ends 14.6% ahead of 2014? Second place gets an autographed copy of Landmark columnist Chris Kamler’s new book The Silence, The Series and The Season of Sungwoo.
Basically, our contest is won or lost in the later rounds because later round victories are rewarded with more points than the early rounds. Parkville--home of golf carts legalized as street vehicles, parks, nature areas, parks, nature areas and did I mention parks--can be a bit quirky when it comes to proposed development. You were elected to lead, not to be led by the paid professionals on staff at whatever public entity you’re serving.
Don’t just list the elected position on your resume and think warming a seat at meetings is all you need to do. But Westbrook’s reputation is no doubt taking some hits after what has been revealed in St.
Joseph School District’s experience, it might be time to re-evaluate some things like longstanding relationships with particular firms, not only in the field of auditing but in other service categories. So incorrect, in fact, that the district has trashed those earlier numbers and toned down its most recent predictions of growth to a level less likely to trip the crazy meter. The tone at Park Hill has changed in recent weeks, not surprisingly at a time when the district is now pushing the need for a major facility expansion (see last week’s front page).
This thing better have some pictures in the early pages or I’m going to need a shock collar to get through it. The plan is to set up shop on the sidewalk in front of The Landmark office that Friday afternoon, maybe around 2-ish or 3-ish, and hang out through the early evening hours. Suspects--police say there were four black males involved--opened fire at the witness through the windshield of the suspects’ stolen Mercedes.
Lewis made the comment Friday morning while addressing a group of hoteliers in a meeting called for the purpose of talking about the recent criminal activity that has occurred on and around their properties. The more public knows the better steps they can take to protect themselves and their property.
That’s why the type of vehicles most often hit are pickups and SUVs--vehicles most often driven by folks who would have a weapon inside. One night last week, Lewis said, a clothing store in Zona Rosa was hit with a $10,000 loss in one shoplifting incident. Axiom is a very successful multimillion dollar company now with a national presence and a lot of irons in the fire. Armstrong had walked out of the office, apparently so she wouldn’t have to see the carnage she had ordered.
Well, except the part where she announced for no apparent reason that she went to college with the daughter of the mayor of Punxsutawney, Pa. Martin wants to run Shiloh by aligning a group of investors to operate the course as a non-profit for a few years, then mentions he would make a $1.2 million offer after three years to buy the course from the county.
The private sector has done a fine job of handling golf courses in Platte County in recent years.
My guess is we’ll be back again the next time a president, Obama or otherwise, comes to the area. Give me a meeting that is not time-consuming yet has some news value in it and all is right with the world. Despite the 87 other things I needed to be doing at the time, I headed down there anticipating--hoping for is probably a more accurate description--a 30-minute meeting, tops. After the mayor’s presentation about the 13-ton anchor from the aptly named USS Platte--which has been out of commission since 1999--being available, the committee recommended the city spend the $3,000 to have the big-ass anchor shipped here from New Orleans. Gas turbine engines have been known as a relatively clean and efficient power unit, but their uses have been relatively limited so far because of their size limitations.
If past performance is any indication, Landmark office manager Cindy Rinehart is considered among the front runners to come in last, but if that happens any potential prize will go to someone else. The portion of the letter that needs explanation deals with some bizarre remarks Roper makes about development potential at KCI Airport. It has taken six years for the housing market to recover and the trend for the next generation is marrying later and not having more than one kid. Anyone that thinks public education is not a train off the financial tracks is simply ignoring the facts that are in front of us every single day. Also, Chris is hosting a book launch party this Friday night, March 13 at Dirk’s bar and grill in Platte Woods. Read the contents of a blistering state audit that was just conducted on that school district. Realize that the paid professionals don’t have the same level of ownership in your entity that you do. Reik said it is Westbrook’s thorough audit and helpful attitude that makes them the company many school districts turn to for their auditing needs. Change can be inconvenient for some staff members but overall change is a good avenue of protection for patrons and taxpayers.
A stray bullet traveled through a first floor hotel room window and struck a sleeping guest in the leg.
I’m not sure how somebody gets away with $10,000 in one night of shoplifting, but police say it happened. A local school tax levy campaign is small potatoes in Roe’s world, as he let me know in our phone conversation.
The question is, will the campaign have enough contributed money available to throw to Axiom for the firm to do the campaign any good?
Getting Shiloh off the county parks department books would free up tax dollars for other amenities and services not offered by the private sector. If the district commits any further violations within a two year period , then Park Hill will be required to pay the remainder of the fee.
Double garage-sized industrial doors--which allowed a pretty damn crisp wind to blow through on a cold day. It will require a crane to unload and place the massive object, and Absolute Crane of Platte City can do that for $800, the committee heard.
However, recent development in manufacturing technology has enabled the size of a gas turbine engine to be extremely small.For instance, by making a rotor shaft incorporated with a compressor wheel and a turbine wheel as an integral ceramic member, it is possible to reduce the length of the gas turbine engine to about 10 cm. It is unbelievable that there are still folks who want to fight when it is suggested the rate be cut slightly to allow a portion of that half cent sales tax to fund more basic services, such as law enforcement.
Public education insiders were quick to totally destroy the last education reform issue on the ballot, and probably for good reason.
Some things in there will anger you, frustrate you, amaze you, and most of all should put you on alert. Realize that those paid professionals you may have come to believe will always be there are often thinking of their next step on the career ladder, the next job that they may see as bigger and better. Particularly in a case like this one, where a change would also have meant saving significant taxpayer dollars.


Justice Center and the Pool Hall, with the hope being that borderline nut jobs and some slightly boozed-up folks will be more likely to buy a book. It seems like the incidents are getting more violent each week,” the sheriff told me later. Axiom can work wonders but it takes significant dollars, not chump change, to put its recommendations into action. Roper also was strong in expressing her desire to have the county explore the idea of selling the Shiloh property to a developer rather than mandating it be kept as a golf course. It should be noted this is not a lot of $$, but it sends a message that leadership at the district is not living up to ethical standards in elections. And keep in mind because of the security factors involved in presidential visits, the media must be set up and in place for a couple of hours in advance of the speech.
When such a micro gas turbine is combined with an alternator or other forms of electric generator, it is possible to replace batteries which have been widely used as small power units but are known to be relatively inefficient, heavy and inconvenient.Small gas turbine engines are attractive as they can deliver improved power densities with high frequency operation.
Yet I don’t see these same insiders promoting any plans that will curtail the squandering of millions of dollars on public education waste that has been created nationally, regionally and locally.
It’s your job as an elected official to look out for your local taxpayers and patrons because your paid professional is looking out for number one. Based on the established growth trend of 150 students per year, that level would be reached about the year 2030. I wish I had a buck for every time this newspaper has had to put a verbal squeeze on law enforcement spokespeople to get basic public right-to-know information from them.
This is never good for an administrator’s job security nor for the district as a whole in trying to win over the hearts and minds of the taxpaying patrons it serves. So, yes, assistant editor Valerie Verkamp and I were basically locked in a deep freeze for hours that day. Your Landmark editor, crazily thinking, you know, that the president would be speaking in normal indoor conditions--in other words, not with an Alaskan wind blowing on the media tables--didn’t even wear a coat into the place.
A major drawback of micro gas turbines is their low efficiency as compared to their large scale counterparts.
At least someone had taped a letterhead with the presidential seal on it on the door of the media’s porta potty (a unisex porta potty, pity the poor ladies, this thing had been abused if you know what I mean) to add a touch of class. A key parameter in controlling the efficiency is the clearance between the compressor blades and shroud.
Keeping You Up-To-Date on Building Fortunes RadioCash Back Twenty Radio Show with Bill Toth and Peter MingilsDr.
Whatever the reason, if we can effectively judge the caseload of the courts by the number of cars parked out front, the caseload has decreased noticeably.
Because of manufacturing tolerances and complex modes of thermal expansion of various components, a fixed tip clearance does not allow each particular gas turbine to achieve a satisfactory performance at all times.
Non-linearity of capacitance as a function of tip clearance can be utilized as an additional signal for tip clearance evaluation to cope with the difficulties in determining absolute capacitance values. However, the capacitance between the third electrode and the extension of the first electrode can be made relatively large and relatively invariable with the axial displacement of the rotor shaft so that the capacitor formed by the third electrode and the first electrode extension serves as an electric coupling.
Therefore, even though the first electrode is not accessible via a physical lead, it is possible to indirectly detect the capacitance between the first and second electrodes.Alternatively, a third electrode may be formed over a shroud part adjacent to the second electrode, the controller having a first input end connected to the second electrode and a second input end connected to the third electrode.
The second and third electrodes may be arranged simply one next the other or they may be individually surrounded by guard electrodes to shut off external disturbances or stray capacitance.Because the profile of the rotor is in most part defined by individual rotor blades, it is important to arrange the second and third electrodes by noting the locations of the rotor blades. For instance, if the second and third electrodes are intended to oppose a common rotor blade, space limitations may create some difficulty in favorably arranging the second and third electrodes on the shroud. Based on such considerations, the second electrode and third electrode may be arranged to be aligned substantially with the edge of one common rotor blade or the second electrode and third electrode may be arranged substantially along a common circumference so as to align with different rotor blades. Therefore, if a pair of electrodes are provided on the side of the shroud, and the compressor blades pass through the electric field formed between the two electrodes, the tip clearance as well as the presence of the blades can be determined as a change in the capacitance between the two electrodes, and no electrode is required to be formed on the compressor blades.
1 is a schematic sectional side view of a generator driven by a micro gas turbine engine embodying the present invention;FIG. 3 is a simplified diagram schematically illustrating a capacitive sensor shown in a dashed area in FIG. 5 is a flow chart of the control process performed by the controller of the present invention;FIG. 6 is another embodiment of the coupling between the working end of the actuator and the rotor shaft;FIG. 7 is yet another embodiment of the coupling between the working end of the actuator and the rotor shaft;FIG. 3 illustrating a second embodiment of capacitive sensor according to the present invention;FIG. 9 is a simplified sectional view illustrating a third embodiment of capacitive sensor according to the present invention;FIG.
1 shows an electric generator driven by a micro gas turbine engine embodying the present invention. The micro gas turbine engine comprises an annular main housing 1 having an end remote from the generator closed, an end plate 2 attached to the open end of the main housing 1, a perforated annular inner housing 3 coaxially received inside the main housing 1 defining a combustion chamber 4 therein, a plurality of fuel injectors 5 each having a nozzle end projecting into the combustion chamber 4.The generator comprises a cylindrical main housing 6 and a pair of end plates 7 and 8 respectively attached to either axial end of the main housing 6.
The end plate 7 facing the gas turbine engine is provided with a tubular extension 10 extending centrally from the end plate 7 towards the gas turbine engine. The end plate 7 facing the gas turbine engine is joined to the opposite end plate 2 of the gas turbine engine by a plurality of stay members 11.The gas turbine engine is additionally provided with an integral rotor shaft 12 carrying a compressor wheel 13 and a turbine wheel 14. The compressor wheel 13 and turbine wheel 14 are composed of a plurality of compressor blades and turbine blades, respectively.
The integral rotor shaft 12 of this embodiment is made of ceramic material, and is integrally formed or otherwise integrated with the compressor wheel 13 and turbine wheel 14 as a single-piece ceramic rotor unit. Alternatively, the unit may consist of a plurality of individual component parts which are made of a same material or different materials. The material for the turbine blades should be ceramic or other heat resistant material which may be either electroconductive or electrically insulating. The choice of the material or materials depends on the particular configuration and specifications of the gas turbine engine. The axial length of this micro gas turbine engine is approximately 10 cm.The compressor wheel 13 forms a radial compressor section in cooperation with a shroud 15 formed by a part of the end plate 2 of the gas turbine housing. The inlet end of the compressor section opens out in the axial direction opposite the generator. The outlet end of the compressor section communicates with a gap defined between the main housing 1 and the inner housing 3 via an array of stator vanes 18 and a diffuser 17.The turbine wheel 14 forms a radial turbine section in cooperation with a turbine casing 16 formed by a part of the main housing 1.
The inlet end of the turbine section communicates with an outlet end of the combustion chamber 4 via an inlet nozzle 19. The combustion chamber 4 in this embodiment extends from the inlet end of the turbine section away from the generator.
The outlet end of the turbine section opens out in the axial direction facing away from the generator.The integral rotor shaft 12 further comprises a generator shaft 20 which is an integral extension of the rotor shaft 12, and is passed centrally through the generator. Permanent magnet pieces 21 are mounted to or otherwise integrated in the generator shaft 20 to form the main functional part of the generator in cooperation with the stator coil 9.
A roller bearing 22 is provided in each end plate to support the integral rotor shaft 12 at two points.
The bearings 22 may also consist of air bearings that can favorably accommodate the axial displacement of the generator shaft 20 as described hereinafter. As can be readily appreciated, the types of the bearings and generator can be selected from any known ones without departing from the spirit of the present invention.An axial end of the generator shaft 20 projecting out of the end plate 8 of the generator remote from the gas turbine engine is formed with a recess 23 receiving a plurality of steel balls 24, and a tapered end of an axial actuator 25 abuts the recessed axial end of the generator shaft 20 via the steel balls 24. The actuator 25 may be fixedly attached to the main housing 6 with a suitable stay member such as stay member 29.
The actuator 25 consists of a piezo actuator in this embodiment, but may consist of an electromagnetic or other actuator as long as it is provided with a required response property.A piezo actuator offers a number of benefits and advantages over other motion techniques. A piezo actuator can achieve a repeatable nanometer and sub-nanometer sized steps at high frequency because its motion is based on solid state crystal effects. A piezo actuator can be designed to move heavy loads (several tons) or can be made to move light loads at frequencies of several 10 kHz. A piezo actuator acts as a capacitive load and requires very little power in static operation, and this simplifies the power supply needs. This means that 100 mm long piezo actuator can expand by 100 micrometers when the maximum allowable field is applied.
Simple distance transducers such as a lever can magnify the displacement but at the same time attenuate the transmitted force by the same ratio. A piezo actuator can develop forces much larger than the axial forces occurring at the rotor shaft of the gas turbine engine. Therefore, a distance transducer could be used to shorten the required length of the piezo actuator. 2 schematically illustrates a lever member 26 interposed between the axial end of the generator shaft 20 and actuator 25. The base end of the lever member 26 is pivotally attached to a fixed point of the assembly and the free end 26a of the lever member 26 is provided with a tapered end which abuts a recess 23 formed at the axial end of the generator shaft 20 via steel balls 24.FIG. The shroud and other parts of the housings are made of electrically conductive metallic material, but the integral rotor shaft 12 is made of electrically non-conductive ceramic material.
Also, it is extremely difficult to feed or draw electric current into or out of the integral rotor shaft 12 because it rotates at high speed in operation. Therefore, in this embodiment, at least the outer surface of the compressor wheel 13 and a part of the generator shaft 20 received in the tubular extension 10 of the generator end plate 7 are subjected to a suitable surface modification which makes the surface of the integral rotor shaft 12 electrically conductive for the purpose of forming capacitors in cooperation with the shroud 15 and tubular extension 10. More specifically, the surface of the blades 13a of the compressor wheel 13 is formed with a first electrode 31 which includes an extension covering a surface part of the generator shaft 20, and a second and third electrode 32 and 33 are formed on the opposing surfaces of the shroud 15 and the tubular extension 10, respectively. As can be readily appreciated, the shroud 15 and the tubular extension 10 should be electrically insulated from each other. C2 is relatively fixed during the operation of the gas turbine engine, and significantly larger than C1 because the area of the electrodes forming C2 is substantially larger than that forming C1.
Also, C1 is related to the clearance between the blades 13a of the compressor wheel 13 and associated shroud 15 in an approximately inversely proportional manner.
This relationship between C1 and the tip clearance is somewhat nonlinear, and applicants have found that an accurate measure of the tip clearance can be determined therewith. In particular, the capacitance C1 gives a highly sensitive measure of the clearance as the clearance gets smaller and in parts where the clearance is small. As is apparent to one skilled in the art, drawings disclosed herein are not to scale and are not to be construed as limiting the present invention whatsoever.The mode of operation of this embodiment is described in the following with reference to FIGS. 4 shows an ideal time history of the tip clearance from the start-up to shut-down of the gas turbine engine. Initially, the tip clearance is relatively large, but progressively diminishes to a minimum value by the time a steady-state operation is reached. When the gas turbine engine is about to be shut down, the tip clearance is gradually increased. Changes in the load and other external disturbances prevent the ideal tip clearance to be maintained.FIG. First of all, the rotational speed of the engine and a representative temperature of the engine are measured (step ST1). It is determined from the measured rotational speed and temperature what is the current mode of operation, such as such as the start-up, ignition, acceleration, steady-state, deceleration, cooling or shut-down (step ST2).
The controller then provides an appropriate command to the actuator to change the current tip clearance to the ideal tip clearance (step ST4).System efficiency may be further improved by using the electrical output as an additional means in control loop to determine the best tip clearance. This can be done by using a state-of-the-art control theory by measuring electrical output as a function of control in tip clearance.FIG. 6 shows a magnetic coupling that can be placed between the working end of the actuator and the shaft end, instead of the rotational coupling shown in FIG.
This magnetic coupling comprises a permanent magnet piece 51 attached to an axial end of the generator shaft 20 and an electromagnetic piece 50 provided in the working end of the actuator 25. By suitably controlling the magnetic polarity of the electromagnetic piece 50, and selectively producing a repulsive and attractive force between the actuator 25 and the generator shaft 20, a desired axial pressure can be applied to the rotor shaft without touching the generator shaft 20.FIG. 7 shows a flapper nozzle coupling that can be placed between the working end of the actuator and the shaft end, instead of the rotational coupling shown in FIG.
The actuator 25 includes two sets of flapper nozzles 53 and 54 directed in opposite directions, and a flapper piece 55 extends from an end of the generator shaft 20 so that the air flows issuing from the two sets of flapper nozzles 53 and 54 may be impinged upon the flapper piece 55 in either axial direction. The air flows can be obtained by drawing a part of the compressed air from the outlet end of the compressor section. An accumulator 57 may be provided in association with the actuator to accumulate the compressed air during the operation of the engine, and supply the compressed air when the engine is not in operation.
This embodiment allows the axial displacement of the rotor shaft 12 to be measured, instead of directly measuring the tip clearance.
This, as well as other embodiments of the present invention, requires a certain calibration to determine the relationship between the actual tip clearance and the sensor output.In this embodiment, a first electrode 34 is formed on the outer circumferential surface of the integral rotor shaft 12 which is preferably made of ceramic material but may consist of a metallic member having an electrically insulated part at least on a surface part thereof. The opposing inner surface of the tubular extension 10 of the generator end plate 7 is provided with a common electrode 35 consisting of a relatively narrow strip formed over the inner circumferential surface of the tubular extension 10 at an axial position opposing an axially central part of the first electrode 34, and a second electrode 36 and a third electrode 37 which axially adjoin or otherwise respectively positioned substantially near the common electrode 35 on either side thereof and each respectively extends slightly beyond the corresponding far end of the first electrode 34. The common electrode 35 is required to be designed in such a way that the capacitance between the common electrode 35 and first electrode 34 will be independent from the relative axial displacement.
The controller 40 in this case is provided with a common input which is connected to the common electrode 35 and a pair of differential inputs which are connected to the second and third electrodes 36 and 37, respectively.According to this embodiment, because the capacitive sensor can be provided in a terminal end part of the compressor section or a part adjacent to the compressor section, as opposed to the main part of the compressor section, the overall arrangement can be formed as a highly compact unit. Also, the second and third electrodes 36 and 37 as well as the common electrode 35 are accessible from the other side of the tubular extension 10 so that the wiring for the capacitive sensor can be highly simplified.FIG.
9 shows a third embodiment of the capacitive sensor for tip clearance control, and the parts corresponding to those of the previous embodiments are denoted with like numerals. In this embodiment, a first electrode 46 is formed on the outer circumferential surface of the blades 13a of the compressor wheel 13.
A second and third electrode 42 and 43 are formed on the opposing surfaces of the shroud 15.
A slot or a rectangular opening is formed through the shroud 15, and is filled with an insulating member 45. The second and third electrode 42 and 43 consist of rod members which extend across the thickness of the insulating member 45 in a parallel relationship. The second and third electrodes 42 and 43 are connected to the two input terminals of the controller 40.In this embodiment, the second and third electrodes 42 and 43 are arranged to be aligned substantially with the edge of one common rotor blade 13a at different radial distances from the shaft. In this case, either the common rotor blade 13a is made of an insulating material and coated with an electrically conductive layer, or the compressor wheel 13 is simply made of electrically conductive material.Alternatively, as illustrated in FIG. 10, the second and third electrodes 42 and 43 may be arranged along a common circumference so as to align with two different blades 13a in an identical manner (the fourth embodiment). In this case also, either the common rotor blade 13a is made of an insulating material and coated with an electrically conductive layer, or the compressor wheel 13 is simply made of electrically conductive material.According to the embodiments illustrated in FIGS. 9 and 10, because the second and third electrodes 42 and 43 on the shroud side are located so as to correspond to the blade or blades 13a of the compressor wheel 13, the two electrodes 42 and 43 may be placed relatively away from each other without compromising the sensitivity. This contributes to the reduction in stray capacity and improves the freedom in selecting the positions of the electrodes.Depending on the application, guard electrodes may be used to shut off external disturbances. 11 shows such an embodiment (the fifth embodiment), which is similar to the embodiment illustrated in FIG. In this embodiment, a pair of electrodes 48 and 49 are formed in a part of the shroud 15 opposing the blades 13a of the compressor wheel 13.
A circular opening is formed through the shroud 15, and this opening is filled with an insulating member 45. The first electrode 48 consists of a rod member which extends centrally across the thickness of the insulating member 45, and the second electrode 49 consists of a tubular member which extends across the thickness of the insulating member 45 coaxially around the first electrode 48.
The first and second electrodes 48 and 49 are respectively connected to the two input terminals of the controller 40 in a similar manner as the first embodiment.In this case, the blades 13a of the compressor wheel 13 are not required to be provided with an electrode, and may be made of either electrically conductive or insulating material. As the blades 13a pass the two electrodes, they come into the electric field formed between the two electrodes. Therefore, the capacitance between the two electrodes 48 and 49 changes as the blades 13a pass the two electrodes, and the magnitude of this change gives a measure of the tip clearance.Although the present invention has been described in terms of preferred embodiments thereof, it is obvious to a person skilled in the art that various alterations and modifications are possible without departing from the scope of the present invention which is set forth in the appended claims.



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