Jun 12, 2013 #51I'd like to put together an Excel tool for comparing comfort, spin potential etc of variable racket / string / tension setups. Enter two strings to be compared, then click on the "Submit" button. In general, lower tension results in lower stiffness ratings. The Tennis Warehouse University Professor has been very busy creating other website tools. 1: Solinco: X-Natural 17. 91: Adidas: Barricade Tour: 13. Power potential tells you how effectively all the racquet's other properties — weight, balance, swingweight, flex, headsize, string pattern, construction, materials, design, and strings — combine to hit the ball with the greatest velocity, comfort, and control. The String Comparison Tool compares any two strings on all the important properties that determine performance: material, stiffness, tension loss, energy return. Power 8. To find out, a table tennis rubber was secured with double-sided tape to the hitting face of a pickleball paddle. Distance: 68. so looking at the TWU string database I'm trying for a stiffness of around 190 lb. This means it checks both the value and the type, ensuring a more accurate comparison. I was unimpressed w/ the X-1; yes it's crisp, it is comfortable, but in now way did I think of Natural Gut or. Two easy tips to avoid arm problems and to get more out of your string setup. Balls were fired at incident angles from 10-90 degrees to the surface and the rebound spin and speeds were recorded. TWBB-O-LH Blackbird Folk Left-Handed. 30, 17/1. 25) = 28 Solinco Revolution 16 = 47 Solinco Revolution 17 = 50 Solinco. Power 8. But can't figure what parameter or a group of could reflect the elasticity? I guess one of them is Impact Tension Change - must be lower. Method 3. In TypeScript, as in JavaScript, the strict equality ( ===) operator is used to compare two values for equality without type coercion. Tanglewood. Input the specs of your current racquet. out. Measured values of e A for 133 other racquets, all 27 inch long, and for an impact in the middle of the strings, are shown in Fig. Nov 5, 2018 #1 Hi all racquet experts, Something intrigues me for some time. Change the racquet to see the difference between different racquets for a shot. 1: Volkl: V-Pro 17: 5. NOTE: Program status determinations. The Texas Common Course Numbering System provides its users three different ways of traversing through the common course matrix. The tools all grow out of the TWU experiments. The TWU tests are preformed at considerably higher energies. In my case the normal rounded Luxilon Alu is worse for the gut than the Alu Rough, it saws the gut quickly. 4. S2S is more of a factor for spin. 0 - if the strings are equal; positive integer - if the first string comes after the second string in the alphabetical order; negative integer - if the first string comes before the second string in the alphabetical orderInsight by those who have used either or both. TWU researchers say that a string’s stiffness is its most important spec because it significantly determines other essential qualities like tension loss, energy return, comfort, and control. Where F t is the instantaneous traction ground reaction force, F n the normal or vertical ground reaction force, and COT is the coefficient. According to Chris, the design definitely works. C. I am talking the same string in different gauges. 18 (only around 5%. The TWU prof says string power is a combination of stiffness and energy return, where stiffness may actually be the more important number. A lower COF indicates a slipperier string. The dynamic specs are measured during the impact between a ball and racquet. Join Our Mailing List. I've used. But there is, of course, a big downside. The test will pass as the expected JSON string, and the actual JSON string are the same. Hope this helps! Cheers. Suppose s1 and s2 are two String objects. Search titles only By: Search Advanced search…While Iain's more recent The geometry of oriented cubes, arXiv:1008. #2. Both heel and forefoot sections were prepared for testing. Results will appear in the last column of the top table. Found 36 words containing twu. Jan 29, 2021. 5% of total energy. tennis-warehouse. == will work only for comparisions among the same non-collections [ integers, characters etc. You can also have a look to the PHP manual to see how comparison are made with different types. the results were the same. Spin Potential Tool. 18 (only around 5%. 1: RS: RS Lyon 17L (1. If you put a powerful poly in the mains, then it's just a waste IMO. Solinco Tour Bite (gauge, tension loss, stiffness) 15L, 24%, 239. 4G, 4G Soft, Poly Tour Strike, Outlast etc. 28: Asics: Asics 116:. P. You could replace the command in that location, but if you aren't confident it will always return 0 you'll probably find trouble down the road (hence the pattern requiring prior knowledge). Note that test may be a builtin in your shell, but you usually have it as binary as well. The interactive TWU Racquet Performance Analysis Tool compares the shot performance of every racquet to every other in 9 areas--shot 1. Shoes were all right-foot, men's, size 9. It's primarily string-to-string friction. The compare () can process more than one argument for each string so that one can specify a substring by its index and by its length. Thread starter newyorkstadium; Start date Jan 7, 2013; N. Spin increased for the setup at 60 lb. 2,040. I assumed the TWU College of Nursing Interim Dean position on August 14, 2023. Many factors have been offered as influencing spin: string material, tension, gauge, pattern, stiffness, texture, shape, ball-to-string friction, and string-to-string friction. "abc" == new String("abc") // true "abc" === new String("abc") // falseDefinition and Usage. 23. Case 5. For more information, see Best Practices for Using Strings. Use the numbers only a guides in you want a semi slippery main and a real slippery cross. 20) 5. Compare Racquets; Power; Sweet Zone Size; Plow-through; Shot Speed; Hittingweight; Racquet Contribution; Shot Trajectory; Vibration; Experiments. When comparing it to other polys, I find many with a. Mar 12, 2020 #44 SPMoney said:2. Spin and string patterns old, new, and illegal. 5 Can anybody explain why the 16. LYNX TOUR. Both the string load and string speed will be greater on an actual tennis hit, but it is difficult to replicate those forces and speeds in a mass produceable way in the lab. For a given string installed in both the mains and crosses, spin potential is the ratio of the string-to-ball stickiness divided by the string-to-string. But the difference between the tension loss of 21% and 13% isn’t 8% but -38%; that is, (21 - 13) ÷ 21. 0. Automate any workflow. Object Equals Method. Looking for list(s) of polys based on string characteristics. After that, go ahead and click the Compare button. It is the swingweight that more than makes up the difference to result in higher power potential. TWU Racket trajectory comparison. Compare the result with the Skip empty cells option off and on: How to set a custom separator when combining and merging cells. Actual sales may not have occurred at this price. Main Differences: Again the biggest difference between the 2023 and 2021 versions is the weight, with the 2023 version having a slightly lighter strung weight (315g vs 318g), and a significantly lighter swing weight (338 vs 324). Compare 3 from $175. 0 mph. Make sure you click the appropriate units for each parameter. . twu. " Chris "It felt under-powered in a 1990 Prestige Pro 600. 6%. With its ultra-predictable response on full. Men. This is harsh but true. Even 1 millimeter will affect the results. 1 95 16x18. Though contrary to intuition, simply altering speeds changes the impact angle. I just read the Alu Power Rough review where it gets a lot of praise for its spin friendliness and a score of 92, but noticed that it has a value of 3. In the lower table, enter the mass and the distance from top to bottom ("length location") and from side to side ("width location"). However, to take a mistake (or handful of mistakes) and state: "The compare strings tool is useless. The == operator checks if the two strings are exactly the same object. This racquet was chosen because the large "string ports" on the periphery of the frame allowed easy addition of weights by bolting 100 gram lab weights to the 3 and 9 o'clock and 1 and 11 o'clock positions as shown in Figure 1. Edit. Energy Flow and Return Between a Tennis Ball and Stringbed; Effective Racquet Mass; Racquet Control — Part 1; Free-standing vs Hand-held Racquet Testing; Spin Demo; Racquet Weighting; Spin Setups. 5 you probably won't really notice the difference as fast as players who re-string every ~10 hours with co-poly. The strings will lose 5% of its 50%, returning 47. equalsIgnoreCase() method compares two strings irrespective of the case (lower or upper) of the string. Top 10 most visited strings (Nov 06 - Nov 12) 1. 5. -Poly / Murli Hybrid: if you prefer the feel/control of poly on the mains, something like Tecnifibre Multifeel cross will up the power without making the string bed too soft. Racquet Recommender Tool Tutorial. The Compare() method returns:. 3 S7T is pretty thin, in fact when compared to the 1. When I look at the specs, it seems lynx edges out lux in power (inverse of stiffness) and has more spin potential. You can use the sameas test to make strict comparisions, and avoid type juggling matters. Thread starter Sublime; Start date Dec 5, 2008; S. 1: Volkl: Synthetic Gut 16: 5. 1 and I had some similar unexpected behavior. Case Sensitivity In Comparison. @toursauce The reported stiffness measurements are derived at one impact level and doesn't describe what occurs with impacts that are softer or harder than that. 99. String Project Sirius Aqua Green 125. Open string pattern for more ball embedding and friction. The average polyester spin compared to the average nylon is +20. The difference in spin between the highest and lowest poly is +15. There is even a tool where you can compare two strings. 4 ft. String Database and Comparison Tool A buddy I hit with who is a nerd about. The rubber-surface paddle produced twice the spin of the non-rubber paddle and about 14% more velocity. The Similar Racquet Tool will always find a list of racquets that are closest in all specs. Forums. The ball will get 33. According to RSI, the top three are (in this order): Pro Hurricane 18, Promix 17, Sonic Pro 17. Is there a policy of requesting some be added?When you call a string comparison method such as String. Here, you compare a bool with a string : if your string is not empty or if it does not contains only zeros, it will evaluate to true. Holliman; Apr 3, 2017; 74 75 76. The Music Education Strings EC-12 - BA Program prepares graduates for professional examination and licensure in Texas. TW Staff. Its primary purpose is to compare the characters of the two strings in sequence until it finds a mismatch or until the end of the strings is reached (that is, the null character '. Members. Click on the row of the string you want to compare to. So more energy goes into the ball and more is lost. <object width="351" height="496" classid="clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B" codebase="<param name="src" value. String Equals Ignore Case. But the tool calculates their differences quite differently. twu. I'm especially interested in spin potential in Poly strings. But even TWU has noted that ball-to-string friction is not the most important factor in string-enhanced spin. Learn more about TeamsTWU Twistweights; Adidas: Barricade: 13. It's a great tool, has most every string out there and what you want to look for is energy return which is the TWU proxy for power. I want to find the most elastic poly strings in the strings database. Share. In general, both equals () and “==” operators in Java are used to compare objects to check equality, but here are some of the differences between the two: The main difference between the . SinneGOAT. If you want to compare String objects using the == operator, you can make use of the way the JVM copes with strings. This way equals () method from the String class gets invoked that compares the string value of the objects instead of comparing the memory location. 9. 5. Click on the thick cell borders to zoom in and zoom out. The finer the measurement the better (mm or 1/32"). the previously mentioned FXP is in this list too. The duration of the drop mass impact is 35-60 ms on strings, 60-65 ms on the ball, and 70-85 ms on the string-ball combination. T. The longer time may decrease the energy return of the ball 1-2 percent but does not noticeably affect the stringbed energy return. Swing speed 7. Choose string you want to find similars for from the drop-down menu. Swingweight measurement is very sensitive to small changes. >0. Final weight must always be greater than beginning weight. Collaborate outside of code. Plow through These are measurements and calculations of what the racquet actual does, not just what. #5. The comparison parameters include both statically and dynamically measured performance variables. For example, let's say I am comparing two different full bed solutions, one 16g and one 19g. The cross string provides the feel and the S2S friction for spin. I started off with FireWire/atomos @51lbs not too bad. Be careful. 2 Kudos. Every new technology or design claims to enhance performance more than. The strings will return 95% of that, or 63. 23, Tecnifibre Black Code 4S 17, Solinco Revolution 16L, and Y-Tex Quadro-Twist 16L are good. For more information, see Background. Most of the time the angle of impact will be "falling" (even if you are hitting the ball on the rise). Hey there! Does anybody know, how TWU tests strings for tension maintenance and friction. 1: Signum Pro: Tornado 16: 5. Follow the steps below to create a Bash script and compare two strings:. XLTools Combine Data add-in allows you to set any delimiter between values in a combined text string: Comma, Comma and space,String Comparison in Python. Furthermore it has a different composition compared to most polys, so the "feel" is different. notawindowcleaner. This latter is essential to control. Measure distance from end of the handle to the bottom of the top string (or whatever string you hang from). 9%. Other Racquets. Control. not too sure about power. For context, I've been playing for maybe 3 years now, and stringing my own racquet for about half of that. Actual sales. This will give you an set of strings that may be candidates for crosses, i. stockboy said: I have head lynx and local tennis guy recommended Luxilon ALU Power Rough as the most popular string of the spin/control type. Plow through These are measurements and calculations. 1 18: 7. The average copoly is stiffer. That is the difference. There are 3 methods of comparison: vbBinaryCompare – compares two strings binary (case-sensitive);. valueOf () Share. Search titles only By: Search Advanced search…In TWU string compare tool it allmost seem like 2 different strings. 6441726684570312}You can also use the other comparison operators including > and < to compare two strings. New posts Search forums. The impact speed is defined as the combined speed of the racquet and ball just prior to collision. This is very cheap, and. Compare and String. It's listed at. 35) 5. Weiss CANNON Blue Rock N Power 17L/1. racket name: Sqin, flex , string pattern , Stat 4, stat 5. Lateral movement and snap-back of the main strings has been shown by TWU to increase spin? Lateral movement is facilitated by using strings with a low string-to-string stickiness. Differences between rackets are all shown as the percentage difference of racket 2 to racket 1. Table 6. Gently swinging racquet through about 15-20 degree angle. com. Speed: 58. Update Effective July 31, 2023: The Bachelor of Arts in Music (EC-12 Music Certification, Strings Emphasis) track has been reclassified as a Bachelor of Music (EC-12 Music Certification, Strings Emphasis) track. 6% of the energy will go into the strings. Sources: National Center for Education Statistics ( on-campus housing and dining; books, supplies and other ), Redfin ( off-campus housing ), Move. When comparing the spin potential (as listed by the TWU lab review), I found the following stats on the various Solinco Hyper-G gauge sizes: 16: 7. TWU delineates 3 sweet zones: 20%, 30% and 40%, but for comparison purposes we report the 30% area. 75. We can use == operators for reference comparison ( address. ABSTRACT. Empty, compares greater than a null reference, and two null references compare equal to each other. The relative motion is determined by the ball's incident spin, speed and angle and the swing speed, angle, and tilt of the racquet. Replies 4K Views 269K. As an example - tension maintenance Solinco Revolution 16L (1. This is a known bug in hive. Search the TWU TCCNS Equivalencies to determine how your individual courses will transfer to TWU. Balls were fired at incident angles from 10-90 degrees to the surface and the rebound spin and speeds were recorded. setup (-90%). com. The PA 98 has an RA of 65 while the Aero VS Is 67. Balls were aimed at the center of the stringbed where the pattern of interest was located. You can tell the tool to find the softest or stiffest poly and it will sort out all 265 or so poly strings in the database for you under those, or a dozen other parameters including the other issues you mentioned, gauge and tension loss. Comparing institutions allows users to select two institutions at a time to check against the entire current common course matrix. TWU proffesor. If the two strings are of the same length and the characters are in the same order, it considers them equal and returns true. Closed string pattern for more surface contact and friction. Equals, or String. Note that softness is not the same as elasticity. It returns false if the strings are different and true, if they’re the same. I have hundreds of fields to compare from various sources (mostly strings). Manage code changes. June 20, 2020. ] equals method will work only for comparisons among the same collections [ array, string, objects etc. See above example for character comparison. For something thinner but not too thin, Wilson Revolve 17, Gamma IO 1. Can. 30 mm for Silver Tour 7, so I included tour Bite 16 as a comparison. I wanted to see how these strings compare when they all have the same ACTUAL tension. I have just looked up a couple of strings I use or have used on TWU comparison tool, and it seems that I am wrong. $23,076. Launch angle 5. These include power potential, sweet zone size, and vibration frequency. SinneGOAT Hall. the unique 6-edge design of this co-polyester will provide the ultimate. Use the transfer guides to track your progress to graduation. Then i might do a comparison of tour hex/ ghostwire vs silver 7 tour/ghostwire :p But most likely i will be doing 1. 1. 35) 5. In our programming world, we call it lexicographic order -based searching. equals () method and == operator is that one is a method, and the other is the operator. Time for 10 swings. 8. Average Faculty Salary. The string Compare method can be used to see if two strings are the same or which string is greater in terms of ASCII value. . Case 4. It's primarily string-to-string friction. System. But always interested to explore what others find to work for them. The impact angle is a result of the angle and speed of the racquet and ball and the racquet tilt. I'm enjoying the "journey of discovery" in trying new strings, but it's getting a bit expensive to buy single packets all the time. Welcome to the Tennis Warehouse Learning Center. 75. Use . . To determine if TWU meets the educational requirements for professional licensure and/or certification in other states, students may review the information on this page. Its also very slippery which you can find in the TWU string database, so very good snap back. Click link. Normal Lynx is a really good string! I am very curious to see how lynx tour does for me! Reactions: ZeroandOne, gutfeeling and SinneGOAT. TW proffesor. Very powerful. 8 out of 10. If: s1 == s2 : The method returns 0. What's new. Spin and String Stiffness. Yesterday at 2:53 PM. T. 17, 49%, 182. . These include NXT, explosiv, synthetic gut original & PSGDF, gamma. Tar Heel Tennis Professional. Members. Input the specs of your current racquet. Compare Strings Tool Choose String 1 Choose String 2 Instructions Choose the two strings you want to compare. If the character case does not really matter, you can use the following formula to compare cells to a sample: ROWS ( range )*COLUMNS ( range )=COUNTIF ( range, sample cell) In the logical test of the IF function, you compare two numbers: The total number of cells in a specified range. On the other hand, if the string stiffness is one half that of the ball, then 66. Mongodb Aggregate Function with group by and having clause. Swingweight measurement is very sensitive to small changes. This fee supports academic programs on each campus. For example the "Energy Return" for Lux 4G 16L is 91 and VS 16 is 95. So. , weight, balance, swingweight, flex) contribute to a racquet's power and includes interactive. I am particularly interested in comparisons between strings that have been specifically engineered for superior playability duration e. Write better code with AI. Crawford Lindsey, Tennis Warehouse, San Luis Obispo, CA. MSV Focus Hex 17L/1. 12. Thread starter Frankauc; Start date Feb 11, 2010; F. 34-40)The answers are provided in Figures 6-8 which display the side by side comparisons of the gross and detailed data fits for swingweight (Fig. 1: Poly Star: Strike 16 (1. The results are described in the Key. 28 / 38 = 73. 8). Crawford Lindsey, Tennis Warehouse, San Luis Obispo, CA, 93401. Explains how each tennis racquet spec (e. The TWU string database shows that the stiffness of 4G far exceeds the ALU. Note that softness is not the same as elasticity. Apparently, Tennis Warehouse has really good database resource with all sorts of information on all the brands of tennis strings. Codespaces.