Fast Breaking Research Articles

Investigation of DC hybrid circuit breaker based on high-speed switch and arc generator.

A new design of DC hybrid circuit breaker based on high-speed switch (HSS) and arc generator (AG), which can drastically profit from low heat loss in normal state and fast current breaking under fault state, is presented and analyzed in this paper. AG is designed according to the magnetic pinch effect of liquid metal. By utilizing the arc voltage generated across AG, the fault current is rapidly commutated from HSS into parallel connected branch. As a consequence, the arcless open of HSS is achieved. The post-arc conducting resume time (Δ tc) of AG and the commutation original voltage (Uc), two key factors in the commutation process, are investigated experimentally. Particularly, influences of the liquid metal channel diameter (Φ) of AG, fault current rate of rise (di/dt) and Uc on Δ tc are focused on. Furthermore, a suitable Uc is determined during the current commutation process, aiming at the reliable arcless open of HSS and short breaking time. Finally, the fault current breaking test is carried out for the current peak value of 11.8 kA, and the validity of the design is confirmed by the experimental results.

The Use of Modular Feed Forward Neural Networks in Anticipating the Results of Handball Championship 2015

Observation is a highly recommended approach in game analysis as it helps form a better understanding for the types of relations within the game. The aim of this study is to present a new approach for predicting competitions results which are based on game analysis by the use of Modular Forward Neural Networks (MFNN). The data of 80 games were analyzed (i.e. Fast break, Breakthrough, different type of shot…). The Data used to train Modular Feed Forward networks include 21 processing elements (PEs) as input, one element as output, 2 hidden layers, 100 epochs – termination Cross Validation, random initial weights, and weight update batch. The MFNN test contains single output case threshold 0, 5 on level 1000. Results show significant correlation between game results and neural network output 0.93, 0.96. Actual network output was 0, 91. Normalized Root Mean Square Error was 0,078. Final mean squared error was 0.9. The variables mostly affecting the results of (MFNN) were: fast breaks, and blocked shots. Using MFNN in predicting game results based on game details is considered a novel approach for evaluating the level of teams and competitors and for improving the training plans and tactics

A Review Study on Impact of Ramadan Fasting on BMI and Biochemical Parameters

Ramadan is the ninth month of the lunar calendar and Muslims keep fast during daytime in Ramadan month. Pre dawn meal is known as “Sahari “ and cut-off time is one hour before the sunrise; fast breaking meal known as “ Iftar” it is taken immediately after the sunset.

A historical study on the fast break of basketball in Japan

A historical study on the fast break of basketball in Japan

Effectiveness of naturopathic diet in weight reduction among obese women

Weight gain and obesity are posing a great threat to the health of women giving rise to various complications; hence ways and means of reducing the occurrence of obesity needs to be explored. Naturopathy is one of the systems that provide a positive solution for obesity. One hundred obese women in the age group of 25-50 years were selected by random sampling from naturopathic hospitals in Trivandrum district. Naturopathic dietary regimen comprised of three phases- fasting phase, fast breaking phase II and III respectively The naturopathic treatment rendered to obese volunteers brought about significant changes in anthropometric indices as well as biochemical parameters viz blood glucose, total cholesterol, HDL and LDL which was found to be significant at 1% level using t test. The vegetarian diet seems to have positive influence on health, nutritional status, life expectancy ad morbidity rate. Key words: Naturopathy, Weight reduction, BMI, lipid profile, vegetarian diet

Automatic Vacuum Flushing Technology for Combined Sewer Solids

An extensive literature review on existing sewer sediment flushing technologies was conducted. The innovative vacuum flush system recently developed by the U.S. EPA was tested under laboratory conditions. The tests revealed a strong correlation between the strength of the flushing wave and the speed of the vacuum break. The original design did not succeed in providing a fast enough vacuum break despite being tested in different configurations. To improve the vacuum brake time, Rutgers developed two alternative mechanisms. These alternative designs showed promising results in the laboratory but remain to be tested under field conditions. This title belongs to WERF Research Report Series . ISBN: 9781780400471 (eBook)

Dynamic Analysis and Modeling Simulation of Distance and Speed of a Solid Sphere

Relative to the sports that have complex technology, basketball sport not only needs the basketball players have very good physical quality and accurate skill of passing, shooting a ball if you want to achieve process of good passing, dribbling, pitching and so on. And relative to the research angle of current way of raising level of basketball fast break and pass, the medicine ball training angle is insufficient, therefore this paper departed from the basis literature of technical of medicine ball training and basketball fast break and pass, and had research according to the universities basketball class, selected two classes to have contrast analysis of the tradition and medicine ball training, and got strong guidance of medicine ball training contributes to the improve distance and speed of basketball fast break and pass, this helps basketball coaches who can effectively use this method to improve basketball fast break and pass technology of the players, and improve the players' physical quality.

Comparison of Repeated Sprint Ability and Fatigue Index among Male Handball Players With Respect To Different Playing

The intent of the present study was to compare repeated sprint ability and fatigue index among male handball players with respect to different playing position. I have selected thirty two (32) male handball players from Department of Physical Education and Sports Sciences, Annamalai university, Chidambram, Tamilnadu, India. These players were classified into four groups as backs (n = 12), wings (n = 7), pivots (n = 7) and goalkeepers (n = 6) respectively. These selected subjects, who practice handball regularly and take part in competition. The selected subjects mean age: 21.62 ± 1.90 years; weight: 64.59 ± 7.25 kg and height: 172.07 ± 7.25 cm. The volunteered subjects signed a separate consent form to participate in the study. The repeated sprint ability and fatigue index were selected as criterion variables. To evaluate the repeated sprint ability and fatigue index all subjects completed multiple sprint running protocols, which consisted of 7 × 30 m sprints repeated at 25 s intervals. The total sprint time was calculated by summation of all seven sprint time and fatigue index was calculated from sprint times using the following formulae: Fatigue = {(slowest sprint – fastest sprint) / fastest sprint} x 100. The collected data was analysed using one way Analysis of variance (ANOVA). When F ratio was found significant, Scheffe’s post hoc test was applied to know the difference between the four groups. The result of the study showed that total sprint time (F = 6.163, p = 0.002) and fatigue index (F = 4.577, p = 0.010) showed a significant difference among male handball players in different playing position. It denotes that total sprint time and fatigue index found to be best in wing players and poor in goalkeepers. It is concluded that lower total sprint time and fatigue index by repeated sprint ability is an important for wing players as they are the players who perform the most picks and require high levels of aerobic capacity to aid recovery after high-intensity bouts of activity. However, it also required for back court, pivot and goal keepers. It importance cannot be neglected since all the field players in the court gets equal chance for fast break and quick counterattacks. The role of the repeated sprint ability is greater and which determines the result of the match.

Team Handball World Cup Championship 2013 - Analysis Study

The world cup of men’s handball team championships was analysed using data from all matches in order to determine tactical differences at the elite level. The first aim of this study was to conduct a technical analysis of current handball and to determine factors related to success in this sport discipline. The second aim was to compare the data of first eight teams with other next teams.An analysis of the performance of the participating teams’ video tapes and CD’s, in the collection of matches, was completed on all the teams taking part in the World Cup Handball Championship 2013. . This technical analysis also used cumulative statistics from the International Handball Federation. There were 24 teams in this competition , these were classified participating 2013 into three groups according to the final classification of the winning teams. Variables were identified relating to results of matches (win or lose), and data collection of games was completed by selecting certain codes for each variable of the study variables.The variables included:- Total shots, Total successful shots, Breakthroughs, Breakthroughs successful, Fast break successful, Fast breaks, Red C, Yellow C, 2Min, Steal, Blocked, Assist, Tech. Faults, 6M shots, 6M successful shots, Wing shots, Wing successful shots, 9M shots, 9M successful shots, 7M shots, 7M successful shots.The technical variables used to compare the teams included: the average number of shots, the efficiency of shots, the efficiency of breakthroughs, fast break goals per team, the efficiency of fast breaks, the average number of 7M shots, the efficiency of 7M shots, the average number of 6M shots, the efficiency of 6M shots, the average number of 9M shots, the efficiency of 9M shots, the average number of wing shots, the efficiency of wing shots, offence (The average number of tech faults, the efficiency of tech faults, the average number of assist, the efficiency of assist), defense ( The average number of blocked, the efficiency of the average number of steals, the efficiency of steals), and penalties (2M, yellow card, red card).This technical analysis used cumulative statistics from the International Handball Federation. ANOVA revealed significant differences between the first eight teams in the World cup championships 2013 and their counterparts in the other two groups (group two, teams from 9-16 and group three, teams from 17-24) in terms of several technical variables. The results showed that the above various affected the ranking in favor of the world cup teams in significant international teams.

Peptides and Exorphins in the Autism Spectrum

Problem: Some researchers have not found the opioids in urine of autistic children. We have therefore looked at this problem again. Method: Mass spectrometry and fragmentation mass spectrometry (MS/MS) have been carried out on peaks from the HPLC that show co-chromatography with synthetic standards and peaks that are shared by different autistic children. Results: In quickly frozen urine we find the presence of exorphins, and can also demonstrate a rather fast break down at room temperature of these peptides in urine. Conclusion: Exorphins are present in urine in autistic children, but must be protected against break down and aggregation by fast freezing or acetic acid and adjusting declustering potential and collision potential during mass-spectroscopy. Specific antibody increases and the effect of removing precursor proteins from the diet reinforce this view.

Home advantage in elite handball: the impact of the quality of opposition on team performance

The aims of this study were: (1) to examine the influence of game location and team quality on performance indicators in elite handball and (2) to analyze the home advantage effect in different game contexts according to the ability of both teams (strong, intermediate and/or weak). The sample included all 240 matches from the Spanish Professional Handball League (ASOBAL League) during the 2012/13 season. The home advantage was 63.10%, but this effect depends on the particular context of the game. Results identified those critical game-related statistics that are affected by playing at home or away (6m Goal Effectiveness, 9m Goal Effectiveness, Fast Break Goals, Field Total Shots, Steals, 6m Goalkeeper Effectiveness, 9m Goalkeeper Effectiveness and Total Goalkeeper Effectiveness, p<0.01 and Turnovers, p<0.05) and how the value of these variables depends on the particular context of the game. These findings can contribute to a better understanding of the situational variables determinants of elite handball performances, helping the coaches to prepare the players accordingly.

Fast spore breaking by superheating

Here we present the results of Bacillus subtilis spores breaking using superheating. The spore sample was pumped through the open-ended capillary tube mounted across the heated zone. We investigated the influence of temperature in the range 120-180 °C. The heat exposure was controlled by the length of the heated zone, the inner diameter of the capillary and the sample flow rate. We found that spore treatment above 120 °C resulted in the release of DNA within 20 s.

A historical study of the fast break in 1920’s Japanese basketball competition ―Focusing on the adaptation and declination of the Sleeper Offense―

A historical study of the fast break in 1920’s Japanese basketball competition ―Focusing on the adaptation and declination of the Sleeper Offense―

Game Analysis of Olympic, World and European Championships in Men’s Handball

The development of men’s handball was analyzed using data from the Olympic, World and European Championships held within the last eight years. The most obvious change, especially within these last nine tournaments, was that men’s handball was played more dynamically and rapidly, both in attack and defense, especially by European teams. The first aim of this study was to conduct a technical analysis of current handball and to determine factors related to success in this sport discipline. The second aim was to compare the data of European Championships with other tournaments, considering the success of European teams in Men’s World Handball. The technical variables used to compare the tournaments included: the average number of attacks, the efficiency of attacks, the efficiency of goal throws, fast break goals per game, the efficiency of fast breaks, the efficiency of the goalkeeper, saves by the goalkeeper per game, number of turnovers per game, and the efficiency of position throws (wing, pivot, back court, break-through, fast break, and 7-meter). This technical analysis used cumulative statistics from the European Handball Federation and International Handball Federation. ANOVA revealed significant differences between the first eight teams in the European Championships and their counterparts in the other two tournaments (Olympics and World Championships) in terms of several technical variables. The results showed that the efficiency of fast break, pivot position and back court players affected the ranking in favor of the European teams in significant international tournaments.

Conducting an Acute Intense Interval Exercise Session During the Ramadan Fasting Month: What Is the Optimal Time of the Day?

This study examines the effects of Ramadan fasting on performance during an intense exercise session performed at three different times of the day, i.e., 08:00, 18:00, and 21:00 h. The purpose was to determine the optimal time of the day to perform an acute high-intensity interval exercise during the Ramadan fasting month. After familiarization, nine trained athletes performed six 30-s Wingate anaerobic test (WAnT) cycle bouts followed by a time-to-exhaustion (Texh) cycle on six separate randomized and counterbalanced occasions. The three time-of-day nonfasting (control, CON) exercise sessions were performed before the Ramadan month, and the three corresponding time-of-day Ramadan fasting (RAM) exercise sessions were performed during the Ramadan month. Note that the 21:00 h session during Ramadan month was conducted in the nonfasted state after the breaking of the day's fast. Total work (TW) completed during the six WAnT bouts was significantly lower during RAM compared to CON for the 08:00 and 18:00 h (p < .017; effect size [d] = .55 [small] and .39 [small], respectively) sessions, but not for the 21:00 h (p = .03, d = .18 [trivial]) session. The Texh cycle duration was significantly shorter during RAM than CON in the 18:00 (p < .017, d = .93 [moderate]) session, but not in the 08:00 (p = .03, d = .57 [small]) and 21:00 h (p = .96, d = .02 [trivial]) sessions. In conclusion, Ramadan fasting had a small to moderate, negative impact on quality of performance during an acute high-intensity exercise session, particularly during the period of the daytime fast. The optimal time to conduct an acute high-intensity exercise session during the Ramadan fasting month is in the evening, after the breaking of the day's fast. (Author correspondence: abdul_rashid_aziz@ssc.gov.sg)

Difference in Caloric Expenditure in Sitting Versus Standing Desks

Traditional desks require students to sit; however, recently schools have provided students with nontraditional standing desks. The purpose of this study was to investigate differences in caloric expenditure of young adults while sitting at a standard classroom desk and standing at a nontraditional standing classroom desk. Twenty (10 male/10 female) young (22.8 ± 1.9 y), healthy participants reported to the laboratory between the hours of 7:00 AM and 2:00 PM following a 12-h fast and 48-h break in exercise. Participants were randomly assigned to perform a series of mathematical problems either sitting at a normal classroom desk or standing at a nontraditional standing desk. Inspired and expired gases were collected for 45-min for the determination of oxygen consumption (VO2), carbon dioxide production (VCO2), and minute ventilation (VE) using a metabolic gas system. There were significant increases from sitting to standing in VO2 (0.22 ± 0.05 vs. 0.28 ± 0.05 L·min-1, P ≤ .0001), VCO2 (0.18 ± 0.05 vs. 0.24 ± 0.050 L·min-1, P ≤ .0001), VE (7.72 ± 0.67 vs. 9.41 ± 1.20 L·min-1, P ≤ .0001), and kilocalories expended per minute (1.36 ± 0.20 kcal/min, P ≤ .0001 vs. 1.02 ± 0.22 kcal/min, P ≤ .0001). Results indicate a significant increase in caloric expenditure in subjects that were standing at a standing classroom desk compared with sitting at a standard classroom desk.

Biomechanical Analysis of Two Techniques Performed in Table Tennis

Table tennis, as one of the most popular sports in China, has grown considerably since its developed in the 19th century in England. The biomechanics of the research methods in many sports has been widely used, for understanding of sports and technology and improve sports played an important role Fast break and curving ball technology is this game’s core technology. In this study, we based on fast break and curving ball features of kinematic to reveal the table tennis forehand techniques. Eight male volunteers were participated in this tests, the speed of the racket during the playing was recorded through Vicon Motion Capture System. The action was divided into three major phases: back swing, attack and follow through. At the end of back swing stage, break and curl technologies, the speed parameter shows some differences. While the peak speed in ball contact frame, the speed of curling ball was significantly higher than the fast break. Further study could be carried out in detailing analysis at sub-stage of the action for integral considering.

Effects of Game Location, Period, and Quality of Opposition in Elite Handball Performances

The aims of the present study were to identify (i) home advantage in elite handball according to the quality of opponent, (ii) the game periods where the teams score more goals, and (iii) the game statistics associated with the teams' success according to the game's location. The sample comprised 480 regular season games (2007-2009) from the Spanish Professional Handball League. The goals scored and shot effectiveness (6 m, 7 m, 9 m and fast breaks) were analyzed for each 5-min. game period in games between players of balanced and unbalanced quality. The home advantage was 64%, with higher values (71%) in balanced and lower values (55%) in unbalanced games. The 5-min. game periods in which teams scored more goals were the last 5-min. period of each half, especially in the second half. The effectiveness was only different in shots closer to the goal (6 m), which supports the territoriality theory of home advantage.

Different Techniques Comparison in Biomechanical Analysis of Ping Pong

Ping Pong has been considered as one of the most popular sports in the world. Fast break and curving ball technology is this game’s core technology, it will be very important to deeply understand this through biomechanical study. In this research, we based on fast break and curving ball features of kinematic to reveal the table tennis forehand techniques. High speed motion analysis was recorded from eight male subjects. The action was divided into three major phases: back swing, attack and follow through. At the end of back swing stage, break and curl technologies, the speed parameter shows some differences. While the fastest speed in ball contact frame, the speed of curling ball was significantly higher than the fast break. Further study could be carried out in detailing analysis at sub-stage of the action for integral considering.

Study on physiological and germination characteristics of Tulipa edulis seed

Current study was conducted to investigate the seed physiological characteristics of Tulipa edulis and improve germination rate. Anatomical characteristics was observed. Seed water absorption curve was tested by soaking method. Dynamic of embryo development and germination rate as well as germination index under different conditions were recorded. And the biological test of cabbage seed was used for detecting the germination inhibitors. The embryo rate of newly matured seeds was about 10%, and there was no obstacle of water absorption on testa of T. edulis. The optimum method for embryo development was exposure to 300 mg x L(-1) gibberellin solution for 24 hours, and stratification at 25 degrees C for 70 days followed by stratification at 5 degrees C for 40 days. The germintion rate and germination index of dormancy-broken seeds under the dark environment at 10 degrees C and 15 degrees C were significantly higher than those under other conditions. Additionally, there were some germination inhibitory substances in dry seeds. The seed of T. edulis can be classified as having complex morphophysiological dormancy, and the morphological embryo dormancy played a leading role. Warm and cold stratification resulted in a fast dormancy breaking effect, and a high germination rate more than 90% could be obtained under the optimum conditions.