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Relevant bibliographies by topics / Long jump

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Academic literature on the topic 'Long jump'

Author: Grafiati

Published: 4 June 2021

Last updated: 30 January 2023

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Journal articles on the topic "Long jump"

1

Rajkumar, R. Vinodh. "STANDING LONG JUMP THEOREM: AN ACCIDENTAL DISCOVERY." International Journal of Physiotherapy and Research 3, no. 4 (July 7, 2015): 1105–10. http://dx.doi.org/10.16965/ijpr.2015.151.

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Bogdanis, Gregory C., Athanasios Tsoukos, and Panagiotis Veligekas. "Improvement of Long-Jump Performance During Competition Using a Plyometric Exercise." International Journal of Sports Physiology and Performance 12, no. 2 (February 2017): 235–40. http://dx.doi.org/10.1123/ijspp.2016-0116.

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Purpose:To examine the acute effects of a conditioning plyometric exercise on long-jump performance during a simulated long-jump competition.Methods:Eight national-level track and field decathletes performed 6 long-jump attempts with a full approach run separated by 10-min recoveries. In the experimental condition subjects performed 3 rebound vertical jumps with maximal effort 3 min before the last 5 attempts, while the 1st attempt served as baseline. In the control condition the participants performed 6 long jumps without executing the conditioning exercise.Results:Compared with baseline, long-jump performance progressively increased only in the experimental condition, from 3.0%, or 17.5 cm, in the 3rd attempt (P = .046, d = 0.56), to 4.8%, or 28.2 cm, in the 6th attempt (P = .0001, d = 0.84). The improvement in long-jump performance was due to a gradual increase in vertical takeoff velocity from the 3rd (by 8.7%, P = .0001, d = 1.82) to the 6th jump (by 17.7%, P = .0001, d = 4.38). Horizontal-approach velocity, takeoff duration, and horizontal velocity at takeoff were similar at all long-jump attempts in both conditions (P = .80, P = .36, and P = .15, respectively).Conclusions:Long-jump performance progressively improved during a simulated competition when a plyometric conditioning exercise was executed 3 min before each attempt. This improvement was due to a progressive increase in vertical velocity of takeoff, while there was no effect on the horizontal velocity.

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Martínez-del-Rio, Javier, and Miguel Pérez-Valls. "The long jump." Management Research: The Journal of the Iberoamerican Academy of Management 12, no. 1 (June 10, 2014): 92–100. http://dx.doi.org/10.1108/mrjiam-03-2014-0545.

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Purpose – The purpose of this paper is to help Ibero-American researchers identify the key challenges and benefits of moving to an Anglo-Saxon university for a period in their careers. Design/methodology/approach – This is a review of the insights provided by a number of prominent Ibero-American scholars based on the main experiences they have encountered. Findings – The paper analyzes three situations: a research visit, searching for a long-term position in North America (NA) and pursuing a PhD program in NA. The paper introduces some principles to succeed in these situations. Originality/value – The paper defines different strategies to take full advantage of a professional stage in an Anglo-Saxon/US university.

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Zalech, Mirosław, and Zbigniew Bujak. "Precise verbal feedback may expedite the attainment of standing long jump accuracy in women." Kinesiology 52, no. 1 (2020): 39–45. http://dx.doi.org/10.26582/k.52.1.5.

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The purpose of this study was to determine whether the precision of verbal feedback affected the accuracy of a standing long jump performance. Sixty-eight female participants (M age=21.44±1.01) were randomly assigned to two experimental groups. In total, each subject performed nine jumps at three distances, i.e. 50 cm (3 trials), 75 cm (3 trials) and 100 cm (3 trials). Group 2 performed jumps in a reverse order. During the task execution, the study participants received verbal feedback at different levels of precision (no feedback; information that the jump was either: too far, close, or correct; information about the distance in centimetres). The results of statistical analysis indicated that the speed of changes in jump accuracy depended on the precision of verbal feedback. The difference between an actual jump result and a target result increased proportionally with jump length. With a large number of trials, verbal feedback accuracy does not affect significantly the precision of women’s long jump performance. However, when the high accuracy of task performance needs to be obtained quickly, feedback ought to define the exact difference between the target and the actual jump results. The current findings also indicate that providing no feedback does not contribute to improving motor task performance accuracy.

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., Sutrisno, Budiman Agung Pratama, and Setyo Harmono. "Analysis of Long Jump Run Up Distance in MTSN 8 Jombang’s Students." International Journal of Research and Review 10, no. 1 (January 10, 2023): 204–9. http://dx.doi.org/10.52403/ijrr.20230122.

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The run up to the long jump is the important initial stage. This initial stage determines the results of the jump. Because if the speed is obtained at the start, it will affect the explosive power when making a jump so that the after repulsion becomes perfect and produces the best jump. The problems in this study were (1) What are the results of the analysis of the starting distance with the results of long jumps in class VII A students of Jombang State Madrasah Tsanawiyah 8 (2) Which starting distance produces the farthest jump in class VII A students of Jombang State Madrasah Tsanawiyah 8? This study used a quantitative approach with percentage descriptive techniques. The instrument used in this research was the kinovea application. The conclusions of this study (1) the results of the initial distance analysis in the long jump had an important role in producing the farthest jump. Because the starting distance will determine the inertia force that will occur causing a person's thrust to produce great power at the time of take off, resulting in the farthest jump, (2) The 30 meter run up distance is the best starting distance compared to the 35 meter and 40 run up distances. This was because the initial distance of 30 meters produces maximum speed, causing a greater force when taking off Keywords: [Analysis, Long Jump run up, Athletics.]

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KARALIS, T. K. "LONG JUMP: MECHANICAL AND ENERGETIC ASPECTS." Journal of Mechanics in Medicine and Biology 04, no. 04 (December 2004): 535–57. http://dx.doi.org/10.1142/s0219519404001120.

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The use of variation techniques is applied to investigate jumper's posture at take-off, resulting in maximum distance of jump. Explicit expressions have been derived between: (i) the take-off angle ϕT (formed by the line connecting the contact point of the leg driving the jump with the ground to the centre of mass position and the horizontal), (ii) the ratio [Formula: see text] of the mean vertical component of the ground reaction force vector to athlete's weight at take-off, (iii) the time spent for the mid-support/take-off phase TT, and (iv) the change in the vertical component of the displacement of the centre of mass compared with the take-off foot ΔyT, measured between two extreme postures, i.e. the mid-support and the take-off phase. The method is illustrated by calculating the state vector [Formula: see text] at take-off, in connection with the take-off angle ϕT. The results are compared to direct measurements from real long jumps.

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Bahramgiri, Mohsen, Shahabeddin Gharaati, and Iman Dolatabadi. "Modeling jumps in organization of petroleum exporting countries basket price using generalized autoregressive heteroscedasticity and conditional jump." Investment Management and Financial Innovations 13, no. 4 (December 29, 2016): 196–202. http://dx.doi.org/10.21511/imfi.13(4-1).2016.05.

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This paper uses autoregressive jump intensity (ARJI) model to show that the oil price has both GARCH and conditional jump component. In fact, the distribution of oil prices is not normal, and oil price returns have conditional heteroskedasticity. Here the authors compare constant jump intensity with the dynamic jump intensity and evidences demonstrate that oil price returns have dynamic jump intensity. Therefore, there is strong evidence of time varying jump intensity Generalized Autoregressive Heteroscedasticity (GARCH) behavior in the oil price returns. The findings have several implications: first, it shows that oil price is highly sensitive to news, and it does settle around a trend in long-run. Second, the model separates variances of high volatilities from smooth volatilities. Third, the model rejects an optimal path for extracting oil and technology transmission. In fact, the lack of a long-term pattern can cause excessive oil extracting which can result in heavy climatic effects. Keywords: generalized autoregressive heteroscedasticity (GARCH), jumps, basket, oil price, Organization of Petroleum Exporting Countries (OPEC), Autoregre-ssive jump intensity (ARJI). JEL Classification: C32, C52, F31

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Berg, William P., and Nancy L. Greer. "A Kinematic Profile of the Approach Run of Novice Long Jumpers." Journal of Applied Biomechanics 11, no. 2 (May 1995): 142–62. http://dx.doi.org/10.1123/jab.11.2.142.

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This study determined the kinematics of the final 11 steps of the long jump approach (LJA) for 19 novice long jumpers. Associations between takeoff accuracy and jump performance were identified, and comparisons of LJA kinematics were made with previous investigations of horizontal jumps performed by expert long jumpers. Results indicated that absolute takeoff error was not an important determinant of jump distance for the novice long jumpers. Additionally, novice jumpers differed from expert jumpers in terms of the relationships among specific variables. The results suggest that kinematic variables that appear to be causally related to jump performance in experts may not piay a similar role in the performance of novices. Hypotheses for these differences were offered. Differences between the LJAs of novice and expert long jumpers warrant further investigation, so that their origins can be determined and used to develop effective training regimes.

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Souza, Wanessa, and Bárbara Pessali-Marques. "Should the Heels Touch the Floor During the Plié in Classical Ballet Jumps." International Journal of Art, Culture, Design, and Technology 11, no. 2 (July 1, 2022): 1–8. http://dx.doi.org/10.4018/ijacdt.305797.

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This paper aimed to review the literature concerning the correct execution of the plié movement in the performance of different classical dance jumps. Studies about jumping techniques (such as countermovement jump, squat jump, and drop jump), the stretch-shortening cycle of short and long duration, classical dance jump and ballet mechanical action description by Agrippina Vaganova and Balanchine raised questions concerning different forms of plié execution preceding small and big jumps. Depending on the circumstance, they were especially concerning the heels contact on the floor during the plié execution before each jump. Understanding when the contact should happen or not is crucial for the prescription of adequate and specific training.

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Pranata, Didi Yudha. "RELATIONSHIP BETWEEN WEIGHT AND HEIGHT TO JUMP RESULTS IN EARLY AGE LONG JUMP ATHLETES FOSTERED BY PASI, ACEH BESAR REGENCY." Jurnal Ilmiah Teunuleh 3, no. 1 (March 28, 2022): 79–85. http://dx.doi.org/10.51612/teunuleh.v3i1.102.

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Athletics is the oldest sport in the world. Athletics has 4 numbers, namely running, walking, jumping and throwing numbers. Jump numbers have elements of physical conditions that must be owned by athletes, such as height and weight. The long jump is a sport that combines speed, strength, flexibility, endurance and accuracy in an effort to get as far as possible. Speed ??and strong leg muscles are also related to weight and height, because in the long jump the legs get a big load in the jump. Against the background of people's assumptions which state that differences in a person's body posture or weight and height affect the jump results, this research was conducted. In this study, a correlational research design was used which aims to determine the tendency of the existence or absence of correlation between variables. This correlational research was conducted to find out how much strength the relationship between the variables to be studied was. With the research subjects 7 Early Long Jump Athletes fostered by Pasi Aceh Besar District, so that in this study there were two variables, namely the dependent variable and the independent variable. Assuming H0: there is no relationship between weight and height and with jumps. H1: there is a relationship between weight and height with jumps. The research instruments used were of two kinds, namely instruments and test instruments. The research conducted will produce data in the form of ratio data, then the collected data is analyzed through inferential statistics in the form of simple, multiple regression analysis, and correlation analysis techniques. Based on the results of data analysis carried out, three conclusions were obtained as follows. First, with the results of H0 being rejected and H1 being accepted, there is a negative relationship between body weight and the long jump, which means that the heavier the weight, the shorter the long jump. The magnitude of the effect of body weight on the jump is 0.486 or 48.6%. Second, because H0 is rejected and H1 is accepted, there is a relationship between height and jump. The magnitude of the effect of height on the jump is 0.743 or 74.3%. Third, Based on the calculation, the correlation between weight and height combined has a relationship with jumps. The magnitude of the relationship is 61.45%. The conclusion is that for each sport it is necessary to pay attention to the body composition of the athlete in order to produce maximum results.

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Dissertations / Theses on the topic "Long jump"

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Griffiths, Gillian. "Long jump : the developing technique in young females." Thesis, Liverpool John Moores University, 2011. http://researchonline.ljmu.ac.uk/6021/.

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Mo, Stacy (Stacy M. ). "Dynamic optimization of two methods of the long jump." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/112557.

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Thesis: S.B., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2017.
Cataloged from PDF version of thesis.
Includes bibliographical references (page 45).
In this thesis, I analyzed, modelled, and optimized two different techniques of the long jump: the hitchkick and hang. Using video data, I made a dynamic model of both techniques, then created a cost function that took torques and angles into consideration to simulate physical limitations. Using a function minimizing optimizer, trajectories were simulated over a range of torque limits and angle penalties. Over the course of 292 simulations, we found that the hitchkick technique improved jump distances more than the hang technique, improving by up to 34.65% with an average of 7.7% while the hang technique increased jump distance by a maximum of 30.21%, with an average of -15.89%.
by Stacy Mo.
S.B.

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Bergander, Andreas, and Jesper Rask. "Samband mellan spänst och långdistanslöpning hos unga elitaktiva orienterare- en tvärsnittsstudie." Thesis, Uppsala universitet, Åsenlöf: Fysioterapi, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-402334.

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Introduction: Running economy (RE) is known to be a strong indicator for performance on long distance running. RE is improved by plyometric training through an increase in stiffness in the musculotendinous system. Stretch shorten cycle (SSC) is a function in the muscle where a contraction is preceded by a stretch or an eccentric action. Orienteering is an endurance sport where RE is important for performance. Purpose: The purpose of the study was to examine whether or not there is a correlation between jumping performance and performance on long distance running in young elite orienteers 16-19 years old. Methods: 34 young elite orienteers did drop jumps (DJ) and countermovement jumps (CMJ) on an ErgoJump Bosco System contact mat. In conjunction with the jumps time on a 5 or 7 km (for girls and boys respectively) running test was collected. Pearson's correlation test was then used to determine the correlation between jumping height and running velocity. Results: The jumping height of the CMJ was on average 30,46 cm and 28,24 cm for the DJ. The running velocity was on average 14,19 km/h. Pearson's correlation test for the correlation between DJ and running velocity was 0,463 and for the correlation between CMJ and running velocity it was 0,461. In both cases the significance was 0,006. Conclusions: There is a significant, moderate to strong correlation between jump height in DJ and CMJ and performance on long distance running on a running test in young elite orienteers.

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Muñiz, Pablo E. (Muñiz Aponte). "Detection of launch frame in long jump videos using computer vision and discreet computation." Thesis, Massachusetts Institute of Technology, 2019. https://hdl.handle.net/1721.1/123277.

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Thesis: S.B., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2019
Cataloged from PDF version of thesis.
Includes bibliographical references (page 44).
Pose estimation, a computer vision technique, can be used to develop a quantitative feedback training tool for long jumping. Key performance indicators (KPIs) such as launch velocity would allow a long jumping athlete to optimize their technique while training. However, these KPIs need a prior knowledge of when the athlete jumped, referred to as the launch frame in the context of videos and computer vision. Thus, an algorithm for estimating the launch frame was made using the OpenPose Demo and Matlab. The algorithm estimates the launch frame to within 0.8±0.91 frames. Implementing the algorithm into a training tool would give an athlete real-time, quantitative feedback from a video. This process of developing an algorithm to flag an event can be used in other sports as well, especially with the rise of KPIs in the sports industry (e.g. launch angle and velocity in baseball).
by Pablo E. Muniz.
S.B.
S.B. Massachusetts Institute of Technology, Department of Mechanical Engineering

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Zushi, Mihoko. "Long-distance dependencies." Thesis, McGill University, 1995. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=28974.

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This thesis proposes a modification of Chomsky's (1992) theory of locality to deal with restructuring phenomena which allow an apparent violation of the locality condition on certain local processes. Various restructuring phenomena including long-distance NP movement exemplified by long-distance Object Preposing (Chapter 2) and long-distance head movement exemplified by clitic climbing (Chapter 3) are examined cross linguistically. Long-distance anaphora (Chapter 4) are also examined based on the view the locality on various types of anaphor-antecedent relationships follow from the theory of movement.
It is argued that the peculiar behavior of restructuring constructions in terms of locality follows from the lexical properties of restructuring verbs that allows a defective Tense to occur in the complement clause. The following effects result: (i) Case checking within the embedded clause becomes impossible; (ii) the defective Tense triggers incorporation of the infinitive verb into the matrix verb. As a result, the embedded element that requires Case is forced to raise into the matrix clause as a last resort operation, hence motivation long-distance movement.
In order to reconcile long-distance movement with the economy principle which requires chain links to be minimal, this thesis refines Chomsky's (1992) theory of locality. The proposed hypothesis claims that the locality condition on certain operations such as NP movement and head movement follows from the economy principle in such a way that an element can move to the closest position in which its morphological requirement can be satisfied. This notion of the shortest movement is further clarified in that the domain in which the shortest movement requirement is satisfied can be extended if there is an appropriate linked chain formed by head movement. The proposed system not only provides principled account for the phenomena of restructuring, but also has some important implications for the notion of economy of derivation.

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Mccosker, Christopher Mark. "Interacting constraints in high performance long jumping." Thesis, Queensland University of Technology, 2020. https://eprints.qut.edu.au/204284/1/Christopher_McCosker_Thesis.pdf.

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This thesis details a series of studies investigating long jump locomotor pointing tasks through a theoretical framework of ecological dynamics. A multi-methods approach was used to investigate athlete behaviours in competition environments revealing the complexities of field-based locomotor pointing tasks, providing important information for the design of practice environments for practitioners. The development of a new substantive theoretical model of perform, respond and manage, presents as a novel tool for practitioners in understanding emergent behaviour in long jump and can be used to better frame representative learning designs. Importantly, athletes need to prepare for more than just a technical performance.

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Денисов, Станіслав Іванович, Станислав Иванович Денисов, Stanislav Ivanovych Denysov, and Y. S. Bystrik. "Long-time solutions of decoupled continuous-time random walks with asymmetric heavy-tailed jump length distributions." Thesis, Видавництво СумДУ, 2012. http://essuir.sumdu.edu.ua/handle/123456789/27608.

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Bringsén-Bornegrim, Mimmi. "Standing long jump compared to vertical jump as a field test for assessing leg power in firefighter trainees : A correlation study from a gender equality perspective." Thesis, Högskolan i Halmstad, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-44599.

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Background: Within the rescue service, a varied background is needed to increase the possibility of delivering equal service to the citizens. At present, there is a skewed gender distribution within the municipal rescue services, with only a couple of percent of the firefighters being women. Many women find it difficult to meet the physical limit values on recruitment tests. The standing long jump (SLJ) is used as a part of recruitment tests on many rescue services, to assess leg power. It is not clear though whether SLJ is the most appropriate field-test to assess leg power in firefighter trainees, with men and women mixed in the same group, as it has been argued that anthropometric factors, such as body height (BH), affects the result. Thereby we wanted to study the relationship between BH and SLJ, and compere SLJ with another field-test for measuring leg power, one that omits the variable BH. Aim: The aim was to study the strength of the relationship between body height and the jump length at standing long jump, for firefighter trainees. A second aim was to study the strength of the relationship between firefighter trainees' jump results of the two tests: standing long jump and vertical jump. Methods: The study was executed as an observational cross-sectional study. Three different measurements were carried out: BH, vertical jump (VJ) and SLJ. Correlation analyzes, with Pearson's correlation coefficient, were performed on BH in relation to SLJ, and VJ in relation to SLJ. Results: Fourteen (n = 14) firefighter trainees (women n = 5, men n = 9) met the inclusion criteria and participated in the study. Subjects' age, body mass index (BMI) and number of workouts per week were 29 ± 7 years old, 25 ± 2 kg/m2 and 4 ± 1 workouts (at least 30 minutes) per week. Results showed a significant moderate correlation between BH and SLJ (r = 0.572). Between the variables VJ and SLJ there were a significant strong correlation (r = 0.862). However, the results changed substantially when the analyzes were performed separately for men and women, with a very low correlation level (r = 0.106 respective r = 0.166) between BH and SLJ. For VJ and SLJ there were a moderate correlation level for men and low for women (r = 0.414 respective r = 0.387). Conclusion: The result from this study is in line with aforementioned work and supports the hypothesis that BH to some extent can affect the jump result at SLJ. Our study complements earlier work and indicates that these results are also applicable to firefighter trainees. The findings in this study indicates VJ could possibly be an alternative field test for SLJ, to assess leg power when recruiting new firefighters. Additional studies are required to investigate the correlation between SLJ and VJ with ad- ditional confounders, such as actual leg power, and also the correlation between VJ and fire- fighters heaviest among most common work tasks.

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Schirmer, Dennis. "Prediktorer för sprintförmåga på is hos elitishockeyspelare. : Kan prestation på is förutspås av styrke- och spänsttester?" Thesis, Linnéuniversitetet, Institutionen för idrottsvetenskap (ID), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-43692.

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BAKGRUND: Ishockey är en stor idrott med över 80000 aktiva spelare i Sverige. SYFTE: Syftet med denna studie var att fastställa huruvida det finns korrelation mellan tester rekommenderade av Svenska Ishockeyförbundet och prestationsförmåga på is. Vidare skulle testresultaten ställas i relation till antropometriska värden. METOD: Studiepopulationen rekryterades från hockeylag i division I. Testerna 1RM knäböj, stående längdhopp samt sergants jump utfördes enligt Svenska Ishockeyförbundets rekommenderade förfarande. Prestationsförmåga på is mättes genom 17 m sprintlopp. Korrelationen mellan testerna och prestation på is beräknades med pearsons korrelationskoeffecient. P<0.05 betraktades som signifikant. RESULTAT: Totalt rekryterades 34 ishockeyspelare från division 1 (100 % män, medel ± SD: ålder 22,7 ±2.24 år; vikt 85,3 ±6,4 kg; längd 182 ±6 cm). Av utförda tester var det endast 1RM knäböj/kroppsvikt-ratiot som med statistisk signifikans visades korrelera med prestationsförmågan på is (r=0,389, p=0,049). Övriga tester uppvisade ingen statistisk signifikans. SLUTSATS: Studiens resultat pekar mot att det finns en svag statistiskt signifikant korrelation mellan 1RM knäböj/kroppsvikt-ratio och sprintförmåga på is. Knäböj/kroppsvikt-ratiot svarar dock endast för en liten del av prestationsförmågan på is, varvid knäböjens starka position som grundövning utanför isen bör ifrågasättas.
BACKGROUND: Ice hockey is a large sport with over 80000 active players in Sweden. PURPOSE: The aim of this study was to determine whether there are correlations between tests recommended by the Swedish Ice Hockey Federation and on-ice performance. The results were also to be examined in relation to antropometric values. METHOD: The studypopulation was recruited from Swedish tier-III teams. The 1RM squat, standing long jump sand sergants jump were performed as described by the Swedish Ice Hockey Federations guidelines. On-ice performance was measured by a 17m sprint. The correlation between off- and on-ice tests were calculated using pearsons correlation coefficient. Statistical significance was set to P<0.05. RESULTS: Thirtyfour male ice hockey players from Swedish tier-III were recruited for the study (100% men, mean ± SD: age 22,7 ±2.24 years; weight 85,3 ±6,4 kg; length 182 ±6 cm). Out of the performed tests only 1RM squat/bodywight-ratio showed a statistical significant correlation to on-ice performance (r=0,389, p=0,049). The other tests did not show statistical significance. CONCLUSION: The results points towards a weak statistical significant correlation between 1RM squat/bodywight-ratio and on-ice sprinting ability. The 1RM squat/bodyweight-ratio however explained a small portion of on-ice performance, hence the squats strong position as basic exercise off-ice should be questioned.

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Miri, Amir Masoud. "Long acoustic cladded buffer rods." Thesis, McGill University, 1991. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=60688.

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Experimental investigations and theoretical considerations of long acoustic cladded buffer rods are presented and theory superiority over uncladded rods is shown. These rods consist of a core and a cladding which are so designed to confine acoustic energy in the core, giving rise to a perfect guidance. Different rods with different core dopant material, concentration and profile were designed and their acoustic performance was studied by ultrasonic pulse-echo experiment. Tapered rods are also introduced. A cladded silica rod of a large diameter is tapered gradually to a rod of a small diameter and gives it the ability to be used where tiny features or openings are dealt with. Novel metalic acoustic rods both cladded and uncladded are presented and a comparison is made between these rods and conventional metal rods. Acoustic lenses are fabricated at the end of a few rods including cladded silica tapered silica and cladded metalic rods and ultrasonic focus and unfocus measurements carried out at 5 and 10MHz are presented for all the rods.
Finally, the application of our unique rods at elevated temperatures is discussed. Ultrasonic measurements are performed at medium temperatures (up to 270$ sp circ C$) on a high viscosity liquid and at high temperatures (around 750$ sp circ C$) on molten aluminum. It is shown that our cladded acoustic rods are proper candidates for use at high temperatures to monitor the properties of molten metals specially good for molten aluminum or low melting point temperature (below 1000$ sp circ C$) metals.

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Books on the topic "Long jump"

1

Arnold, Malcolm. Long jump. London: British Amateur Athletic Board, 1987.

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Long jump high. Edinburgh: Barrington Stoke, 2012.

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BAAB Long/Triple Jump Conference (1985 North Staffs Polytechnic). Report of B.A.A.B. Long/Triple Jump Conference 1985. [Bomere Heath: D.J. Hayward, 1985.

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Athletics, field: Pole vault, long jump, hammer, javelin, and lots, lots more. Minneapolis: LernerSports, 2000.

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Tegeran 43: [krakh operat︠i︡i "Dlinnyĭ pryzhok"]. Moskva: "I︠A︡uza", 2003.

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Quattro giorni a Teheran: 1943, i tre grandi, Hitler, un agguato. Milano: Mursia, 2007.

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Longden, Bruce. Long Jump. Tafnews Press, 1997.

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Operation Long Jump. Severn House Publishers, 1993.

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Long Jump (Official Instruction Books). 5th ed. Tafnews Pr, 1997.

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Richemont, Enid. Lizzie lizard's long jump. 2016.

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Book chapters on the topic "Long jump"

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O’Sullivan, Adrian. "‘Operation LONG JUMP’." In Espionage and Counterintelligence in Occupied Persia (Iran), 170–94. London: Palgrave Macmillan UK, 2015. http://dx.doi.org/10.1057/9781137555571_13.

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Schaeffer, Jonathan. "A Long Journey by Paul Lu." In One Jump Ahead, 1–2. Boston, MA: Springer US, 2008. http://dx.doi.org/10.1007/978-0-387-76576-1_32.

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Aston, Tracy-ann. "Pattern seeking: Can long legs jump further?" In The Really Useful Book Of Secondary Science Experiments, 34–35. Abingdon, Oxon ; New York, NY : Routledge, [2017]: Routledge, 2017. http://dx.doi.org/10.4324/9781315640082-17.

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Matsuzaki, Yasuhiro, and Tatsuko Hentona. "Motor Pattern During the Standing Long Jump in Individuals with Mental Retardation." In Adapted Physical Activity, 131–36. Tokyo: Springer Japan, 1994. http://dx.doi.org/10.1007/978-4-431-68272-1_21.

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Vargas, Alessandro N., Eduardo F. Costa, and João B. R. do Val. "Approximation of the Optimal Long-Run Average-Cost Control Problem." In Advances in the Control of Markov Jump Linear Systems with No Mode Observation, 35–46. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-39835-8_3.

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Lv, Ran. "Kinematic Analysis of Standing Long Jump for 3 to 6 Years Old Children." In Lecture Notes in Electrical Engineering, 363–67. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-26001-8_47.

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Liao, Yi-de, and Qiang Huang. "Research on the Adaptive Tracking Method for the Tracking of the Track of the Long-Jump Athletes." In Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, 225–35. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-51100-5_20.

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Singh, Pushpendra, Kanad Ray, and Anirban Bandyopadhyay. "Is Coronavirus Pushing Humanity Towards an Evolutionary Jump as It Did Long Back When It Initiated Making a Brain?" In Biological Antenna to the Humanoid Bot, 1–34. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-9677-0_1.

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Zolnikov, Konstantin P., Dmitrij S. Kryzhevich, and Aleksandr V. Korchuganov. "Regularities of Structural Rearrangements in Single- and Bicrystals Near the Contact Zone." In Springer Tracts in Mechanical Engineering, 301–22. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-60124-9_14.

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AbstractThe chapter is devoted to the analysis of the features of local structural rearrangementsin nanostructured materialsunder shear loadingand nanoindentation. The study was carried out using molecular dynamics-based computer simulation. In particular, we investigated the features of symmetric tilt grain boundary migration in bcc and fcc metals under shear loading. The main emphasis was on identifying atomic mechanisms responsible for the migration of symmetric tilt grain boundaries. We revealed that grain boundaries of this type can move with abnormally high velocities up to several hundred meters per second. The grain boundary velocity depends on the shear rate and grain boundary structure. It is important to note that the migration of grain boundary does not lead to the formation of structural defects. We showed that grain boundary moves in a pronounced jump-like manner as a result of a certain sequence of self-consistent displacements of grain boundary atomic planes and adjacent planes. The number of atomic planes involved in the migration process depends on the structure of the grain boundary. In the case of bcc vanadium, five planes participate in the migration of the Σ5(210)[001] grain boundary, and three planes determine the Σ5(310)[001] grain boundary motion. The Σ5(310)[001] grain boundary in fcc nickel moves as a result of rearrangements of six atomic planes. The stacking order of atomic planes participating in the grain boundary migration can change. A jump-like manner of grain boundary motion may be divided into two stages. The first stage is a long time interval of stress increase during shear loading. The grain boundary is motionless during this period and accumulates elastic strain energy. This is followed by the stage of jump-like grain boundary motion, which results in rapid stress drop. The related study was focused on understanding the atomic rearrangements responsible for the nucleation of plasticity near different crystallographic surfaces of fcc and bcc metals under nanoindentation. We showed that a wedge-shaped region, which consists of atoms with a changed symmetry of the nearest environment, is formed under the indentation of the (001) surface of the copper crystallite. Stacking faults arise in the (111) atomic planes of the contact zone under the indentation of the (011) surface. Their escape on the side free surface leads to a step formation. Indentation of the (111) surface is accompanied by nucleation of partial dislocations in the contact zone subsequent formation of nanotwins. The results of the nanoindentation of bcc iron bicrystal show that the grain boundary prevents the propagation of structural defects nucleated in the contact zone into the neighboring grain.

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Ferrando, R., R. Spadacini, and G. E. Tommei. "Long Jumps in Surface Diffusion Investigated by Stochastic Equations." In Collective Diffusion on Surfaces: Correlation Effects and Adatom Interactions, 295–304. Dordrecht: Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-010-0816-7_26.

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Conference papers on the topic "Long jump"

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Powell, G. E. "Long Jump 4." In Targets, Backgrounds, and Discrimination, edited by G. H. Kelley and Joseph S. Accetta. SPIE, 1991. http://dx.doi.org/10.1117/12.2300202.

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Palmer, Emily H., Nicolas Deshler, and Rajat Mittal. "Aeromechanics of Long Jumps in Spider Crickets: Insights From Experiments and Modeling." In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-73498.

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Flapping, gliding, running, crawling, and swimming in animals have all been studied extensively in the past and have served as sources of inspiration for engineering designs. In this paper, we describe the aeromechanics of a mode of locomotion that straddles ground and air: jumping. The subject of our study is the spider cricket of the family Rhaphidophoridae, an animal that is among the most proficient of long-jumpers in nature. The focus of the study is to understand the aeromechanics of the aerial portion of the jump of this animal. The research employs high-speed videogrammetry to track the crickets’ posture and appendage orientation throughout their jumps. Experiments demonstrate that these insects employ carefully controlled and coordinated positioning of their limbs during their jumps so as to increase jump distance and stabilize body posture. Simple phenomenological models based on drag laws indicate that the conformation of the limbs during the latter portion of the jump is stable to pitch and enables these animals to land in a controllable manner. Insights from this study could be useful in the design of micro-robots that exploit jumping as a means of locomotion.

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Wibowo, Wondo, and Hartati. "Long Jump Learning Model Using Play Approach." In 1st International Conference on Sport Sciences, Health and Tourism (ICSSHT 2019). Paris, France: Atlantis Press, 2021. http://dx.doi.org/10.2991/ahsr.k.210130.064.

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Shang, Zijian. "Research on the Factors Influencing Long Jump." In ICoMS 2022: 2022 5th International Conference on Mathematics and Statistics. New York, NY, USA: ACM, 2022. http://dx.doi.org/10.1145/3545839.3545845.

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Hui-Huang Hsu, Sheng-Wen Hsieh, Wu-Chou Chen, Chun-Jung Chen, and Che-Yu Yang. "Motion Analysis for the Standing Long Jump." In 26th IEEE International Conference on Distributed Computing Systems Workshops (ICDCSW'06). IEEE, 2006. http://dx.doi.org/10.1109/icdcsw.2006.74.

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Aziz, Ishak, and Nelfia Adi. "Long Jump Practice Lecture Towards Athletic Learning Results." In 1st International Conference on Sport Sciences, Health and Tourism (ICSSHT 2019). Paris, France: Atlantis Press, 2021. http://dx.doi.org/10.2991/ahsr.k.210130.080.

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Palmer, Emily, Nicolas Deshler, and Rajat Mittal. "Video: Aerodynamics of the Long Jump of a Spider Cricket." In 68th Annual Meeting of the APS Division of Fluid Dynamics. American Physical Society, 2015. http://dx.doi.org/10.1103/aps.dfd.2015.gfm.v0003.

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Wang, Jiandong, Jinggang Yu, and Lineng Yang. "The Jump-Out Failure Analysis of Long, Round Thread Casing." In International Conference on Pipelines and Trenchless Technology. Reston, VA: American Society of Civil Engineers, 2013. http://dx.doi.org/10.1061/9780784413142.128.

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Kastrena, Ervan, Adang Suherman, Amung Ma’mun, and Eka Nugraha. "Correlation between Motor Ability and Long Jump Skills of Students." In Proceedings of the 3rd International Conference on Sport Science, Health, and Physical Education (ICSSHPE 2018). Paris, France: Atlantis Press, 2019. http://dx.doi.org/10.2991/icsshpe-18.2019.28.

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Wei, Ding. "Analysis on Assessment Indices of Take-off Techniques in Long Jump." In 2011 International Conference on Future Computer Science and Education (ICFCSE). IEEE, 2011. http://dx.doi.org/10.1109/icfcse.2011.33.

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Reports on the topic "Long jump"

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Mistretta, Paolo, Mattia Scapinello, Samira Breban, Andrea Giovanni Cutti, and Nicola Petrone. Instrumentation of sprint and long jump tracks of an indoor athletics field to study athletes’ performances. Purdue University, 2022. http://dx.doi.org/10.5703/1288284317522.

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The algorithm realization of motor “running” and “standing long-jump” actions formation during the training process of 6-7 year-old preschool children. Gimazov R.M., Rembeza A.V., Bulatova G.A., December 2019. http://dx.doi.org/10.14526/2070-4798-2019-14-4-67-79.

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