Relevant bibliographies by topics / Pitched

Academic literature on the topic 'Pitched'

Author: Grafiati
Published: 9 March 2023
Last updated: 10 March 2023

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Contents

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Pitched.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Pitched"

1

Erickson, Brandon J., Peter N. Chalmers, Michael J. Axe, and Anthony A. Romeo. "Exceeding Pitch Count Recommendations in Little League Baseball Increases the Chance of Requiring Tommy John Surgery as a Professional Baseball Pitcher." Orthopaedic Journal of Sports Medicine 5, no. 3 (March 1, 2017): 232596711769508. http://dx.doi.org/10.1177/2325967117695085.

Full text
Abstract:
Background: Empirical evidence has suggested a connection between youth pitch counts and subsequent elbow injury. For players within the Little League World Series (LLWS), detailed historical player data are available. Some of these players progress to both professional play and require an ulnar collateral ligament reconstruction (UCLR). Purpose: To determine the percentage of LLWS pitchers who proceed to play professional (major or minor league) baseball, the rate of UCLR in former LLWS pitchers who played professional baseball, and the risk to those who exceeded current pitch count recommendations while playing in the LLWS. Study Design: Cohort study; Level of evidence, 3. Methods: All LLWS pitchers from 2001 through 2009 from all teams and countries were identified, and all performance data were extracted. A professional (major and minor league) baseball database was then searched to determine whether each former LLWS pitcher played professional baseball. These professional players were then searched for using publicly available databases to determine whether they underwent UCLR. Results: Overall, 638 adolescents pitched in the LLWS between 2001 and 2009; 62 (10%) progressed to professional play. Of the 56 minor league players, 25 (45%) pitched. Of the 6 Major League Baseball players, 3 (50%) pitched. Three former LLWS pitchers (5%) who played professionally underwent UCLR. In former LLWS pitchers who exceeded pitch counts and played professionally, 50% (2/4) required UCLR, while only 1.7% (1/58) of those who did not exceed pitch count recommendations required UCLR ( P = .009). Similarly, among former LLWS pitchers who subsequently played professionally, 23.1% of those who played as a pitcher required UCLR while 0% of those who also played other positions required UCLR ( P = .008). Conclusion: Progression from LLWS pitching to professional baseball is uncommon. Among youth players, both diversification (playing other positions besides pitcher) as well as following current pitch limit regulations may protect against UCLR.
APA, Harvard, Vancouver, ISO, and other styles
2

Helfrich, Hede, and Philipp Weidenbecher. "Impact of Voice Pitch on Text Memory." Swiss Journal of Psychology 70, no. 2 (January 2011): 85–93. http://dx.doi.org/10.1024/1421-0185/a000042.

Full text
Abstract:
Previous research on communication has demonstrated that the quality of a speaker’s voice affects the attitude of the audience toward the speaker. The present study aimed to find out whether the pitch of a speaker’s voice affects the listener’s memory for the contents of the texts read. Stimulus materials consisted of three different texts spoken by different male speakers in different average pitches (measured as F0 in Hz). The original speech samples were digitally manipulated to produce predefined pitches. Both original and manipulated texts were then presented to participants as learning material. The results indicate a linear correlation between pitch and speaker rating in so far as low-pitched voices were rated more positively than high-pitched voices. Concerning the retention of content, it was shown that, in long-term memory, both high- and low-pitched voices led to better results than medium-pitched voices. This result was independent of whether the speech samples represented natural or manipulated voices.
APA, Harvard, Vancouver, ISO, and other styles
3

Chalmers, Peter, Kathryn Mcelheny, John Dangelo, Kevin Ma, Dana Rowe, and Brandon Erickson. "Is Workload Associated with Ulnar Collateral Ligament Tears in Professional Baseball Players? An Analysis of Days of Rest, Innings Pitched and Batters Faced (126)." Orthopaedic Journal of Sports Medicine 9, no. 10_suppl5 (October 1, 2021): 2325967121S0026. http://dx.doi.org/10.1177/2325967121s00269.

Full text
Abstract:
Objectives: To determine if workload; as measured by number of days rest between outings, innings pitched, batters faced, and being a starting pitcher; associates with risk for sustaining a subsequent UCL tear in professional baseball players. Methods: All professional baseball pitchers who sustained a UCL tear between 2011-2017 were identified using the major league baseball (MLB) Health and Injury Tracking System (HITS). A separate player usage was used to determine workload . We then compared these variables between player-games 2, 6, 12, and >12 weeks prior to a documented UCL tear and player games from a non-UCL tear control group. In a paired analysis, we compared the acute workload (2, 6, 12 weeks) prior to injury and the injured player’s workload >12 weeks prior to injury. Results: There were 2,204 elbow injuries within MLB, 369 of which were unique UCL tears in pitchers. In all time periods, player-games with more days rest, more innings pitched, and more batters faced associated with a subsequent UCL tear. Players who pitched 4 of more innings per outing had a 1.78-fold increase in percent of players with a subsequent UCL tear as compared to players with one inning pitched. Being a starting pitcher carried a relative risk of 1.51 (p<0.001) of subsequent UCL injury. In a paired analysis there were significantly more innings pitched and batters faced in the player-games 2 weeks prior to UCL injury than in the player-games >12 weeks prior to UCL injury (p=0.028 and p=0.017). Conclusions: Being a starting pitcher, pitching more innings per game, and facing more batters per game increased the risk of a UCL tear. An increase in workload in the 2 weeks prior to injury over that player’s baseline also significantly increased the risk for injury.
APA, Harvard, Vancouver, ISO, and other styles
4

Solomito, Matthew J., Erin J. Garibay, and Carl W. Nissen. "DECELERATION PHASE MOMENTS: A POTENTIAL CAUSE FOR ELBOW INJURY IN COLLEGIATE LEVEL BASEBALL PITCHERS." Orthopaedic Journal of Sports Medicine 7, no. 3_suppl (March 1, 2019): 2325967119S0007. http://dx.doi.org/10.1177/2325967119s00072.

Full text
Abstract:
Background: Over the past three decades there has been an increase in the incidence of elbow and shoulder pain experienced by baseball pitchers, which can limit or lead to an end of pitching activities. Although there are a number of theories that suggest poor pitching mechanics or throwing breaking pitches prior to skeletal maturity may be the cause, biomechanical investigations have yet to elucidate a single cause for this rise in injuries. It is also well established that the highest stresses and fastest angular velocities experienced by pitchers occurs during the acceleration phase of the pitch cycle, which has led to extensive biomechanical investigations of this portion of the pitching cycle. However, the deceleration phase of the pitch, although 150% longer than the acceleration phase, still requires an abrupt reversal of motion to allow pitchers to get into a fielding position after they have delivered the pitch. Therefore, the purpose of this study was to determine if the elbow joint was subjected to an additional varus stress during the deceleration phase of the pitch cycle. Methods: NCAA Division I and Division III baseball pitchers were recruited for this study and underwent a comprehensive biomechanical pitching evaluation. All pitchers were injury free at the time of data collection and reported no history of an upper extremity injury within the previous six months of the analysis date. Additionally, all pitchers had at least two years of pitching experience. All participants pitched from a 10” mound towards a target with a designated strike zone set 60’6” away. Kinematic data was collected using a 12-camera motion capture system, and kinetic data was calculated using standard inverse dynamic techniques. The typical pitching cycle, starting with lead foot contact and ending with maximum internal rotation of the glenohumeral joint (MIR), was expanded to end when the pedestal foot reached its maximum height; allowing for the analysis of deceleration phase moments at the elbow joint. The deceleration phase elbow varus (EV) moment was compared across multiple pitch types (i.e. fastball, curveball, slider, and change-up) using the type III effects from a random intercept mixed effects model. Additionally, the deceleration phase EV moment was compared to the peak EV moment occurring during the acceleration phase of the pitch cycle. Results: The results of this study are based on 87 baseball pitchers with a mean age of 19.9 ± 1.4 years. All participants pitched a fastball, 78 pitched a curveball, 31 pitched a slider, and 60 pitched a change-up. The results indicated that there was the presence of an elbow varus moment for all pitch types that occurred during the deceleration phase of the pitching cycle after MIR that was on average about half of the peak acceleration phase moment (Table 1). Overall 26% of pitchers pitching a fastball, 33% of pitchers throwing a curveball and change-up, and 55% of pitchers throwing a slider had deceleration EV moments greater than 50% of their peak acceleration phase EV moment. There was a statistically significant difference in the number of pitchers with a deceleration phase EV moment greater than half of the acceleration phase EV moment when pitching the slider when compared to the other pitch types (p=0.029). Conclusion/Significance: The majority of pitching biomechanics research focuses on the acceleration phase of the pitching cycle because the highest speeds and moments are achieved during this portion of the pitch. However, the pitcher’s need to rapidly decelerate during the pitch does expose them to an additional elbow varus moment. This additional moment could be a potential source of injury as it is a second stress exposure for the UCL. Additionally, given that the highest deceleration EV moments were noted in the slider this may potentially explain why pitchers and coaches believe that sliders are more harmful than other pitch types. [Table: see text]
APA, Harvard, Vancouver, ISO, and other styles
5

Okoroha, Kelechi R., Jason E. Meldau, Vincent A. Lizzio, Fabien Meta, Jeffrey P. Stephens, Vasilious Moutzouros, and Eric C. Makhni. "Effect of Fatigue on Medial Elbow Torque in Baseball Pitchers: A Simulated Game Analysis." American Journal of Sports Medicine 46, no. 10 (June 28, 2018): 2509–13. http://dx.doi.org/10.1177/0363546518782451.

Full text
Abstract:
Background: The incidence of overuse injury to the elbow among baseball pitchers continues to rise, despite extensive efforts at pitch count regulations and emphasis on proper throwing mechanics. Purpose: To determine if the medial elbow experiences increased torque levels as a baseball pitcher fatigues through the course of a simulated game. Study Design: Descriptive laboratory study. Methods: High school and collegiate baseball pitchers were recruited for this simulated game study. Each pitcher completed a simulated game consisting of 6 innings and a standardized pitching scheme of fastballs, curveballs, and changeups. In total, each pitcher threw 90 pitches. Fatigue was reported per inning with a visual analog scale, and pitch velocity was captured per pitch with a radar gun. Outcome measures were assessed with a validated mobile sensor and included medial elbow torque, arm speed, arm rotation, and arm slot. Linear and quadratic regression modeling was used to evaluate the relationship between pitcher fatigue and pitching kinematics. Results: A total of 11 pitchers (mean age, 17.6 years; range, 15-20 years) completed the study. Visual analog scale fatigue scores increased 0.72 points per inning pitched ( P < .01, effect size = 0.64). Medial elbow torque also increased beyond inning 3, with an increase of 0.84 N·m each inning ( P < .01, effect size = 0.08), while pitch velocity decreased (0.28 mph per inning, P < .01, effect size = 0.27). Fastballs generated the greatest amount of medial elbow torque (49.3 ± 1.4 N·m, P < .01, effect size = 0.24). There were no differences in arm rotation ( P = .42) or arm speed ( P = .80) as the game progressed. However, arm slot decreased with each successive inning (0.73° on average per inning, P = .03, effect size = 0.12). No adverse outcomes were noted with use of the mobile sensor. Conclusion: In this simulated game analysis, pitchers experienced increased fatigue after each successive inning. While the average pitch velocity declined with each successive inning, the torque on the medial elbow increased after inning 3. These findings signify a possible relationship between fatigue and injury risk.
APA, Harvard, Vancouver, ISO, and other styles
6

Chalmers, Peter, Kathryn Mcelheny, John Dangelo, Kevin Ma, Dana Rowe, and Brandon Erickson. "Poster 168: Is Workload Associated with Internal Impingement in Professional Baseball Players? An Analysis of Days of Rest, Innings Pitched and Batters Faced." Orthopaedic Journal of Sports Medicine 10, no. 7_suppl5 (July 1, 2022): 2325967121S0072. http://dx.doi.org/10.1177/2325967121s00729.

Full text
Abstract:
Objectives: The purpose of this study was to determine if number of days of rest between outings, number of innings pitched in each outing, number of batters faced in each outing, and being a starting pitcher are risk factors for internal impingement in professional baseball pitchers. Methods: All professional baseball pitchers who were diagnosed with internal impingement between 2011-2017 were identified using the Major League Baseball (MLB) Health and Injury Tracking System (HITS). A separate player usage dataset was used to determine workload. We then compared workload variables between pitcher-games 2, 6, 12, and >12 weeks prior to documented internal impingement to pitcher-games from a control group who were never diagnosed with internal impingement. In a paired analysis, we compared the acute workload (2, 6, 12 weeks) prior to injury to the injured pitcher’s workload >12 weeks prior to injury. Results: There were 624 professional baseball pitchers who were documented in the MLB HITS database as having had internal impingement between 2011-2017. Across all time points, players with more innings pitched per game and more batters faced per game were associated with a higher incidence of subsequent internal impingement compared to controls. However, there were not significantly more innings pitched, more batters faced, or fewer days rest in the acute period (12 weeks) prior to injury when compared to baseline workload. Being a starting pitcher was associated with a higher incidence of internal impingement. Conclusions: Greater pitcher workload and being a starting pitcher were associated with increased risk for internal impingement in professional baseball players. However, this injury was not associated with an acute increase in workload, suggesting that internal impingement may be due to the cumulative effects of workload over a career. [Table: see text]
APA, Harvard, Vancouver, ISO, and other styles
7

Makhni, Eric C., Jason E. Meldau, Jeff Stephens, Kelechi Okoroha, Vincent A. Lizzio, Fabien Meta, Christopher S. Ahmad, and Vasilios Moutzouros. "Relationship Between Pitcher Fatigue and Medial Elbow Torque in Baseball Pitchers: A Simulated Game Analysis." Orthopaedic Journal of Sports Medicine 6, no. 7_suppl4 (July 1, 2018): 2325967118S0007. http://dx.doi.org/10.1177/2325967118s00073.

Full text
Abstract:
Objectives: The incidence of overuse injury to the elbow in baseball pitchers continues to rise, despite exhaustive efforts at pitch count regulations and emphasis on proper throwing mechanics. The goal of this study was to determine if the medial elbow experiences increased torque levels as the pitcher fatigues through the course of a simulated game. Methods: Competitive baseball pitchers were recruited for this simulated game study. Medial elbow torque was assessed using a validated mobile sensor that recorded medial elbow torque during the throwing motion. A radar gun was used to capture pitch velocity for each recorded pitch. Each pitcher completed a simulated game consisting of 6 innings and a standardized pitching scheme of fastballs, curveballs, and change-ups. Visual analog scores (VAS) measuring fatigue were recorded in between each inning. In total, each pitcher threw 90 pitches. Data was recorded every pitch to include ball velocity, medial elbow torque, arm speed, arm rotation, and arm slot. Results: A total of 11 pitchers (average age 17.6 years; range 15-20 years) completed the study. No adverse outcomes were noted with use of the mobile sensor. VAS scores increased 0.716 points per inning pitched (p<0.001). Medial elbow torque also was found to increase with successive innings, with an increase of 0.836 Nm each inning (p<0.001), while average pitch velocity was found to decrease as the game progressed (0.28 mile per hour decrease per inning; p<0.001). Fastballs generated the highest amount of medial elbow torque. There were no differences found in arm rotation or arm speed as the game progressed. However, the arm slot was found to decrease with each successive inning (0.731 degree decrease per inning; p<0.001). Conclusion: In this simulated game analysis, pitchers were noted to experience increase fatigue after each successive inning. While the average fastball velocity decreased from inning-to-inning, the medial elbow torque was found to increase, signifying a possible risk factor for overuse injury to the medial elbow.
APA, Harvard, Vancouver, ISO, and other styles
8

Wen, Bor-Jiunn, Che-Rui Chang, Chun-Wei Lan, and Yi-Chen Zheng. "Magnus-Forces Analysis of Pitched-Baseball Trajectories Using YOLOv3-Tiny Deep Learning Algorithm." Applied Sciences 12, no. 11 (May 30, 2022): 5540. http://dx.doi.org/10.3390/app12115540.

Full text
Abstract:
This study analyzed the characteristics of pitched baseballs from TV broadcast videos to understand the effects of the Magnus force on a pitched-baseball trajectory using aerodynamic theory. Furthermore, an automatic measurement and analysis system for pitched-baseball trajectories, ball speeds, and spin rates was established, capturing the trajectory of the baseball thrown by the pitcher before the catcher catches it and analyzing its related dynamic parameters. The system consists of two parts: (1) capturing and detecting the pitched baseball in all frames of the video using the YOLOv3-tiny deep learning algorithm and automatically recording the coordinates of each detected baseball position; (2) automatically calculating the average speed and spin rate of the pitched baseball using aerodynamic theory. As the baseball thrown by the pitcher is fast, and live-action TV videos like sports and concerts are typically at least 24 fps or more, this study used YOLOv3-tiny algorithm to speed up the calculation. Finally, the system automatically presented pitching data on the screen, and the pitching information in the baseball game was easily obtained and recorded for further discussion. The system was tested using 30 videos of pitched baseballs and could effectively capture the baseball trajectories, throw points, catch points, and vertical displacements. Compared with the values from the TV broadcast, the average errors on the calculated ball speed and spin rate were 1.88% and 7.51%, respectively. Using the ratio of the spin rate and ball speed as a parameter to analyze the pitching state of the pitcher’s four-seam fastball in the Nippon Professional Baseball and Major League Baseball matches, it was observed that when this ratio increased, the Magnus displacement of the ball increased, thereby decreasing its late break. Therefore, the developed system provides scientific pitching data to improve the performance of baseball pitchers.
APA, Harvard, Vancouver, ISO, and other styles
9

McGraw, Michael H., Michael Vrla, Dean Wang, Christopher L. Camp, John M. Zajac, Dave Pearson, Alec A. Sinatro, Joshua S. Dines, and Struan H. Coleman. "Shoulder and Elbow Range of Motion Can Be Maintained in Major League Baseball Pitchers Over the Course of the Season, Regardless of Pitching Workload." Orthopaedic Journal of Sports Medicine 7, no. 2 (February 1, 2019): 232596711882506. http://dx.doi.org/10.1177/2325967118825066.

Full text
Abstract:
Background: Studies examining the evolution of shoulder and elbow range of motion (ROM) in baseball pitchers over a single season have yielded inconsistent results. Purpose: To evaluate shoulder and elbow ROM in Major League Baseball (MLB) pitchers over a single season and to assess for correlations between these changes and measures of a pitcher’s workload. Study Design: Case-control study; Level of evidence, 3. Methods: Bilateral shoulder ROM (internal rotation [IR], external rotation [ER], and total range of motion [TROM]) was assessed in 92 MLB pitchers pre- and postseason. Shoulder forward flexion (FF) was measured in 64 pitchers, horizontal adduction (HA) was measured in 87 pitchers, and elbow ROM was measured in 86 pitchers. Data collected included demographics (age, height, weight, and body mass index) and measures of workload for pitchers (pitches thrown, innings pitched, and mean fastball velocity). Pitchers were not specifically excluded if they had an injury during the season but had recovered and were actively pitching at the time of postseason measurements. The change in motion from pre- to postseason was measured and the associations with player demographics and workload were calculated by use of the Pearson correlation coefficient. Results: On average, pitchers demonstrated an increase in dominant shoulder ER from 118.8° to 125.4° ( P < .001) and TROM from 173.1° to 181.7° ( P < .001). HA was increased by an average of 15.7° ( P < .001). The average shoulder IR ( P = .189), FF ( P = .432), and elbow ROM (flexion, P = .549; extension, P = .185) remained similar over the span of the season. Average glenohumeral IR deficit did not increase. Pitcher demographics and measures of throwing workload (total pitches thrown, innings pitched, mean fastball velocity) were not significantly correlated with changes in shoulder or elbow ROM. Conclusion: Significant increases in dominant shoulder ER, TROM, and HA were identified in MLB pitchers over the course of a single baseball season. These ROM changes were not correlated with measures of pitching workload.
APA, Harvard, Vancouver, ISO, and other styles
10

Fudin, Robert, Lesley Renninger, and Jordon Hirshon. "Analysis of Data from Reichler's (1979) the Baseball Encyclopedia: Right-Handed Pitchers are Taller and Heavier than Left-Handed Pitchers." Perceptual and Motor Skills 78, no. 3 (June 1994): 1043–48. http://dx.doi.org/10.1177/003151259407800367.

Full text
Abstract:
In 1989 Coren concluded right-handed Major League pitchers whose careers began up to 1975 are significantly taller and heavier than left-handed pitchers. His source of data, Reichler's 1979 edition of The Baseball Encyclopedia, however, lists heights and weights for pitchers whose careers began through 1978 and for individuals who pitched but who almost always appeared at a different position or positions. Coren did not indicate why he did not analyze all of the relevant data in Reichler nor did he explain how he decided that an individual's usual position was that of pitcher. Further, there is evidence from Topp which suggests that the era during which the pitchers began their careers should be considered when comparing their heights and weights because relatively recent rookies (from 1980 through 1986) are taller and heavier than rookies who began their careers 50 and 100 years prior to that era. Classifying an individual as a pitcher if he pitched in at least 50% of the games in which he played at a position, using all relevant data in Reichler, and considering the era during which dextral and sinistral pitchers began their careers, we found strong corroborative evidence for Coren's 1989 findings.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Pitched"

1

Du, Plessis Jana. "Pitched." Thesis, Rhodes University, 2016. http://hdl.handle.net/10962/d1021209.

Full text
Abstract:
Pitched is a novella made up of short stories. It is about breaking in, breaking down and breaking out of the advertising industry. My protagonist loves and hates this confusing world she lives in. She is tough but also emotional and anxious, often trapped between her strong desires and her strong morality. She finds herself both attracted to and repulsed by the people who inhabit this world - sexy wolf-like men, and prickly female execs alike. I have been inspired by the work of Lidia Yuknavitch, Kate Zambreno, Michelle Tea and Chris Kraus to create a universal woman I can identify with.
APA, Harvard, Vancouver, ISO, and other styles
2

Nicholson, Michael Eugene. "The effect of overload and traditional pitcher conditioning on the velocity of pitched baseballs." Master's thesis, This resource online, 1990. http://scholar.lib.vt.edu/theses/available/etd-01262010-020057/.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Sander, Jacob Victor. "Vertical height estimates of pitched balls." The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1576607357582938.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Tuncer, Ismail H. "Unsteady aerodynamics of oscillating and rapidly pitched airfoils." Diss., Georgia Institute of Technology, 1988. http://hdl.handle.net/1853/12522.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Clothier, Andrew Charlton. "Switched reluctance motor drives with fully pitched windings." Thesis, University of Newcastle Upon Tyne, 2001. http://hdl.handle.net/10443/831.

Full text
Abstract:
Switched reluctance motors with fully pitched windings are a relatively recent advancementin motor technology having only been in existences ince the early 1990's. They have been shown previously to offer greater torque per unit copper loss, and hence higher torque density, than conventional switched reluctance machines with short pitched windings. Early work by Mecrow and Barrass has demonstrated operation of prototype machines, developed and assessedv arious methods of control strategy, and made some comparisons of machine efficiency and inverter rating. The results presented here build on this early work by, in essence, examining the aspects of machine design, control strategy and inverter topology that affect drive performance and cost. Detailed comparisons of inverter rating and machine efficiency are made under equal conditions with the various methods of excitation that are possible. This is achieved with results from a test rig, including temperature rise tests, and the use of accurate dynamic simulation. The latter is developed to accurately model the motor with its strong mutual coupling between phases, various inverter topologies and the details of the controller such as digital PWM. As a result comparisons between simulated and measured results are shown to be very good. The fundamentals of machine design are examined with a view to optimising the machine for fully pitched windings. Previous work has indicated that good results are achieved when a conventional machine is simply rewound, however it is shown that further improvements can be made. Proposals are made to improve the drive in terms of both machine performance and power electronic rating. A search method is proposed that optimises current waveshape for either maximum torque per unit copper loss, or smooth torque for lowest loss. The method works over the entire speed range, as the rate of change of flux linkage is taken into account. Three alternative power electronic converters are developed, one of which is also particularly suitable for the short pitched winding machine. Aspects of silicon rating, current controllability, and current sensor requirements are discussed.
APA, Harvard, Vancouver, ISO, and other styles
6

Elvidge, M. "The plastic analysis of pitched roof steel portal frames." Thesis, University of Bradford, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.374916.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Essah, Emmanuel Adu. "Modelling and measurements of airflow and ventilation within domestic pitched roofs." Thesis, Glasgow Caledonian University, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.517937.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Atterholt, Nathan L. "The Effect of Stride Length on Ocular Tracking of Pitched Balls." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1305856806.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Uddin, Md Wasi. "Modeling and Control of Fully Pitched Mutually Coupled Switched Reluctance Machines." University of Akron / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=akron1469123515.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Barrass, Peter. "High Performance Switched Reluctance Drives." Thesis, University of Newcastle Upon Tyne, 1995. http://hdl.handle.net/10443/136.

Full text
Abstract:
The fully-pitched winding arrangement is one of the most radical changes in the design of doubly-salient reluctance motors in recent times. By replacing conventional shortpitched windings with fully-pitched windings, the resulting machine has a strong and position dependant mutual coupling between phases. The major torque producing mechanism is due to changes in mutual inductance with rotor position. This enables the windings to be better utilised, and with correct selection of excitation all phases can contribute useful torque all of the time. The increased winding utilisation requires a lower MMF per phase in comparison with a short-pitch wound machine with a single phase excited. Given a suitable winding configuration and machine dimensions, the copper losses for a given torque can be significantly lower than an equivalent conventional switched reluctance machine. Operation of a three phase fully-pitched winding switched reluctance machine has been studied theoretically, in simulation and experimentally. The experimental drive comprises of a D132 frame 12:8 machine, IGBT power converter and DSP controller. Operation with unipolar phase currents has been investigated over a wide speed range and performance compared with a conventional switched reluctance machine. Bipolar operation with several different excitation patterns has been investigated. Unipolar operation gives the largest torque/speed envelope with a simple controller, although bipolar modes can equal this with a more complex controller. Results show that for equal RMS phase current the average torque produced by four different modes of excitation are approximately equal. However, there is a large difference in the torque ripple and acoustic noise performance of each mode. Current control in switched reluctance machines is complicated by the non-linear nature of the load. By controlling flux-linkage rather than current a linear load model can be used. A discrete time 'dead-beat' flux-linkage controller has been implemented which gives superior phase current control performance to other types of controller with the same sample interval. A new method of constant torque operation based on 'flux ramps' has been proposed. This method gives predictable performance and enables constant torque operation over a wide speed range. A Genetic Algorithm has been shown to be very effective when applied to the problem of optimising the 'flux ramps' for minimum torque ripple. A speed controller has been implemented which makes use of the Genetic Algorithm optimised flux ramps to give smooth torque over a wide speed range.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Pitched"

1

Jarvie, Judy. Pitched into love. Leicester: Linford, 2012.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Building Research Establishment. Housing Defects Prevention Unit., ed. Flat and pitched roofs. Watford: Building Research Establishment, 1992.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Eberhard, Schunck, ed. Roof construction manual: Pitched roofs. Basel: Birkhäuser, 2003.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

Eberhard, Schunck, ed. Roof construction manual: Pitched roofs. Basel: Birkhäuser, 2003.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Ariquet, Nordine Fellague. Stability of pitched roof portal frames. Salford: University of Salford, 1989.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

Civieltechnisch Centrum Uitvoering Research en Regelgeving (Netherlands) and Netherlands. Technische Adviescommissie voor de Waterkeringen., eds. Design manual for pitched slope protection. Rotterdam: Balkema, 1995.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

Great Britain. Energy Efficiency Office. and Building Research Energy Conservation Support Unit., eds. Energy efficiency in new housing: Site practice for tradesmen : pitched roofs: insulating a conventional pitched roof. [UK]: Energy Efficiency Office, 1993.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

Christopher, Matt. The dog that pitched a no-hitter. New York: Scholastic, 1988.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

ill, Vasconcellos Daniel, ed. The dog that pitched a no-hitter. New York: Scholastic, 1988.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

Christopher, Matt. The dog that pitched a no-hitter. Chicago, Ill: Norwood House Press, 2010.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "Pitched"

1

Watts, Andrew. "Pitched roof: Tiles." In Modern Construction Envelopes, 432–41. Vienna: Springer Vienna, 2011. http://dx.doi.org/10.1007/978-3-7091-0258-9_41.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Watts, Andrew. "Pitched roof: Slates." In Modern Construction Envelopes, 442–51. Vienna: Springer Vienna, 2011. http://dx.doi.org/10.1007/978-3-7091-0258-9_42.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Watts, Andrew. "Pitched roof: Metal." In Modern Construction Envelopes, 452–61. Vienna: Springer Vienna, 2011. http://dx.doi.org/10.1007/978-3-7091-0258-9_43.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Chudley, Roy, Roger Greeno, and Karl Kovac. "Pitched Roofs Classification." In Chudley and Greeno’s Building Construction Handbook, 369–442. 12th edition. | Abingdon, Oxon ; New York, NY : Routledge, 2019.: Routledge, 2020. http://dx.doi.org/10.1201/9780429027130-12.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Worthing, Derek, Nigel Dann, and Roger Heath. "Pitched roof structure." In Marshall and Worthing’s The Construction of Houses, 159–92. 6th ed. Sixth edition. | Abingdon, Oxon; New York, NY: Routledge, 2021. | Revised edition of: The construction of houses / Duncan Marshall ... [et al.]. 5th ed. London; New York: Routledge, 2013.: Routledge, 2021. http://dx.doi.org/10.1201/9780429397820-8.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Seeley, Ivor H., and Roger Winfield. "Pitched and Flat Roofs." In Building Quantities Explained, 144–91. London: Macmillan Education UK, 1999. http://dx.doi.org/10.1007/978-1-349-14653-6_8.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Illankoon, I. M. Chethana S., Vivian W. Y. Tam, and Khoa N. Le. "Life Cycle Costing for Insulated Pitched Roof Structures." In Proceedings of the 21st International Symposium on Advancement of Construction Management and Real Estate, 981–93. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-6190-5_88.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Kaveh, Ali, and Armin Dadras Eslamlou. "Geometry and Sizing Optimization of Steel Pitched Roof Frames." In Metaheuristic Optimization Algorithms in Civil Engineering: New Applications, 99–114. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-45473-9_5.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Gordon, Robert S. C. "Pasolini as Jew." In The Scandal of Self-Contradiction, 37–58. Vienna: Turia + Kant, 2012. http://dx.doi.org/10.37050/ci-06_03.

Full text
Abstract:
Pasolini’s first turn beyond Europe can be dated to three lengthy journeys to Asia and Africa undertaken between December 1960 and February 1963. The places he visited quickly bring to mind a long series of subsequent projects – poems, screenplays, films realized or unfinished – from throughout the remaining fifteen years of Pasolini’s life, during which he pitched himself in a wholly new light as a poet of the Third World.
APA, Harvard, Vancouver, ISO, and other styles
10

Amira, Bilel Ben, Zied Driss, Sarhan Karray, and Mohamed Salah Abid. "PIV Study of the Down-Pitched Blade Turbine Hydrodynamic Structure." In Lecture Notes in Mechanical Engineering, 237–44. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-37143-1_29.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Pitched"

1

Husain, Tausif, Wasi Uddin, and Yilmaz Sozer. "Performance comparison of short pitched and fully pitched switched reluctance machines." In 2016 IEEE Energy Conversion Congress and Exposition (ECCE). IEEE, 2016. http://dx.doi.org/10.1109/ecce.2016.7855340.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Ma, X. Y., G. J. Li, G. Jewell, and Z. Q. Zhu. "Comparative study of short-pitched and fully-pitched SRMs supplied by sine wave currents." In 2015 IEEE International Conference on Industrial Technology (ICIT). IEEE, 2015. http://dx.doi.org/10.1109/icit.2015.7125174.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Clothier, A. C., and B. C. Mecrow. "Inverter topologies and current sensing methods for short pitched and fully pitched winding SR motors." In APEC '99. Fourteenth Annual Applied Power Electronics Conference and Exposition. 1999 Conference Proceedings (Cat. No.99CH36285). IEEE, 1999. http://dx.doi.org/10.1109/apec.1999.749711.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

WU, J., and I. TUNCER. "Unsteady aerodynamics of rapidly pitched airfoils." In 4th Joint Fluid Mechanics, Plasma Dynamics and Lasers Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1986. http://dx.doi.org/10.2514/6.1986-1105.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Matin, Leonard, and Wenxun Li. "Linear summation of visual influences on perceived eye level." In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1989. http://dx.doi.org/10.1364/oam.1989.wcc4.

Full text
Abstract:
A stationary pitched visual field generates deviations of the elevation of visually perceived eye level (VPEL) ≅ 0.6 × the pitch angle; deviations are as large if the field consists of a single line pitched from vertical in darkness as if the field is complexly structured. Horizontal lines have minimal influence.1 In psychophysical measurements with fields pitched between −30° and +20° we obtain linear summation of influences on VPEL from two pitched from vertical lines; summation is identical whether the lines are adjacent or separated by 60°. The following model relates known cortical neurophysiology to observer centered spatial localization and accounts for the results: Employing a spherical approximation to the eye in primary viewing position, the influence on VPEL derives from the location of the intersection point (IP) of the great circle (GC) containing the image of a straight line with the central vertical retinal meridian (CVRM). Summation of influences on VPEL occurs in V1 among neural units whose orientations serve a single retinal GC and across members of GCs with a commom IP on the CVRM. Pitching an erect frontoparallel plane by θ° shifts the IPs of the GCs containing the images of a set of vertical lines from the upper and lower poles by θ° on the CVRM, and leads to outputs from different neural processors uniquely related to visual pitch.
APA, Harvard, Vancouver, ISO, and other styles
6

SILVESTRE, N., and D. CAMOTIM. "COUPLED GLOBAL INSTABILITIES IN PITCHED-ROOF FRAMES." In Proceedings of the Third International Conference. PUBLISHED BY IMPERIAL COLLEGE PRESS AND DISTRIBUTED BY WORLD SCIENTIFIC PUBLISHING CO., 2000. http://dx.doi.org/10.1142/9781848160095_0053.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Mukesh, Sagarika, Nicholas A. Lanzillo, Koichi Motayama, and Terry Spooner. "Structural stability of tight-pitched damascene interconnects." In 2020 IEEE International Interconnect Technology Conference (IITC). IEEE, 2020. http://dx.doi.org/10.1109/iitc47697.2020.9515651.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Singh, Chetan Pratap, and T. Kishore Kumar. "Efficient pitch detection algorithms for pitched musical instrument sounds: A comparative performance evaluation." In 2014 International Conference on Advances in Computing, Communications and Informatics (ICACCI). IEEE, 2014. http://dx.doi.org/10.1109/icacci.2014.6968303.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Milanovic, Ivana M., and K. B. M. Q. Zaman. "Pitched and Yawed Circular Jets in Cross-Flow." In ASME 2002 Joint U.S.-European Fluids Engineering Division Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/fedsm2002-31093.

Full text
Abstract:
Results from an experimental investigation of flow field generated by pitched and yawed jets discharging from a flat plate into a cross-flow are presented. The circular jet was pitched at α = 20° and 45° and yawed between β = 0° and 90° in increments of 15°. The measurements were performed with two X-wires providing all three components of velocity and turbulence intensity. These data were obtained at downstream locations of x = 3, 5, 10 and 20, where the distance x, normalized by the jet diameter, is measured from the center of the orifice. Data for all configurations were acquired at a momentum-flux ratio J = 8. Additionally, for selected angles and locations, surveys were conducted for J = 1.5, 4, and 20. As expected, the jet penetration is found to be higher at larger α. With increasing β the jet spreads more. The rate of reduction of peak streamwise vorticity, ωxmax, with the downstream distance is significantly lessened at higher β but is found to be practically independent of α. Thus, at the farthest measurement station x = 20, ωxmax is about five times larger for β = 75° compared to the levels at β = 0°. Streamwise velocity within the jet-vortex structure is found to depend on the parameter J. At J = 1.5 and 4, ‘wake-like’ velocity profiles are observed. In comparison, a ‘jet-like’ overshoot is present at higher J.
APA, Harvard, Vancouver, ISO, and other styles
10

WANG, C., J. WU, and P. QIAN. "Unsteady aerodynamics of rapidly pitched flat plate wings." In 9th Applied Aerodynamics Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1991. http://dx.doi.org/10.2514/6.1991-3262.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Pitched"

1

Pohl, B. A., and B. L. Koponen. K{sub effective} calculations for infinite planar square-pitched arrays of waste receptacles. Office of Scientific and Technical Information (OSTI), September 1993. http://dx.doi.org/10.2172/10119546.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Harms, Gary. PARTIALLY-REFLECTED WATER-MODERATED SQUARE-PITCHED U(6.90)O2 FUEL ROD LATTICES WITH 0.52 FUEL TO WATER VOLUME RATIO (0.855 CM PITCH). Office of Scientific and Technical Information (OSTI), June 2020. http://dx.doi.org/10.2172/1763542.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Ames, David. Pitch Variation Experiments in Water-Moderated Square-Pitched U(6.90)O2 Fuel Rod Lattices with Fuel to Water Volume Ratios Spanning 0.08 to 0.67. Office of Scientific and Technical Information (OSTI), October 2020. http://dx.doi.org/10.2172/1671168.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Ames, David. Pitch Variation Experiments in Water-Moderated Square-Pitched U(6.9)O2 Fuel Rod Lattices with Fuel to Water Volume Ratios Spanning 0.08 to 0.67. Office of Scientific and Technical Information (OSTI), December 2020. http://dx.doi.org/10.2172/1747004.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Ames, David. Pitch Variation Experiments in Water-Moderated Square-Pitched U(6.90)O2 Fuel Rod Lattices with Fuel to Water Volume Ratios Spanning 0.08 to 0.67. Office of Scientific and Technical Information (OSTI), September 2021. http://dx.doi.org/10.2172/1821800.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Harms, Gary A. TITANIUM AND/OR ALUMINUM ROD-REPLACEMENT EXPERIMENTS IN FULLY-REFLECTED WATER-MODERATED SQUARE-PITCHED U(6.90)O2 FUEL ROD LATTICES WITH 0.67 FUEL TO WATER VOLUME RATIO (0.800 CM PITCH). Office of Scientific and Technical Information (OSTI), September 2016. http://dx.doi.org/10.2172/1562650.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Breitbarth, Marco, Anja Hentschel, and Simon Kaser. Kunststoffeinträge von Kunstrasenplätzen in Entwässerungssystem - Aufkommen, Rahmenbedingungen und Möglichkeiten der Eintragsminderung. Sonderforschungsgruppe Institutionenanalyse, 2022. http://dx.doi.org/10.46850/sofia.9783941627994.

Full text
Abstract:
Plastics as an environmental problem have been in the focus of science, politics and the public for a long time. Various sources and pathways have already been identified and a wide range of measures have been developed to reduce and, if possible, avoid inputs into the environment. Artificial grass pitches represent a special source of plastic inputs into the environment. Artificial grass with different infill materials has been widely used for some time now on surfaces for a wide range of sports, both amateur and professional. It is characterised by various advantages over natural grass. However, the use of artificial grass on sports surfaces also has its downsides, especially for the environment. On the one hand, the synthetic grass fibres themselves, which become detached through wear, are problematic. On the other hand, synthetic granulate is used as infill material on these pitches to reduce the risk of injury to players, to support the blades of artificial grass and to improve the playing characteristics of the field. However, this granulate can enter the environment in various ways - indirectly via drainage systems or directly. The following comments reflect research results from the InRePlast project. In the following chapter 2, the results of our own investigations on the topic are presented. In Chapter 3, these are compared to other publications and evaluated with regard to their significance. Chapter 4 is devoted to technical and organisational measures to reduce discharges as well as legal approaches to regulation. Finally, Chapter 5 draws a conclusion. Among other things, the study concludes that artificial grass pitches are less relevant as a specific source of plastic inputs than previously discussed. It should also be noted that the input into drainage systems via the collection of dirty water has a significantly higher relevance than the input via the collection of precipitation at the edge of the pitch and that measures should therefore focus on the carry-over on players' clothing and shoes.
APA, Harvard, Vancouver, ISO, and other styles
8

McHenry, E. R. Evaluation of pitches and cokes from solvent-extracted coal materials. Office of Scientific and Technical Information (OSTI), December 1996. http://dx.doi.org/10.2172/451287.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Chong Chen, Elliot B. Kennel, Liviu Magean, Pete G. Stansberry, Alfred H. Stiller, and John W. Zondlo. PRODUCTION OF FOAMS, FIBERS AND PITCHES USING A COAL EXTRACTION PROCESS. Office of Scientific and Technical Information (OSTI), June 2004. http://dx.doi.org/10.2172/827482.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Fuss, Franz Konstantin, Batdelger Doljin, Jeong Kwangyul, and Young-Kwan Kim. Torque-to-spin Efficiency of Pitches Analysed with a Smart Baseball. Purdue University, 2022. http://dx.doi.org/10.5703/1288284317489.

Full text
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Pitched' for particular source types:
Journal articles Dissertations / Theses Books
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography