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Sample records for karate involving punches

  1. Predicting punching acceleration from selected strength and power variables in elite karate athletes: a multiple regression analysis.

    Science.gov (United States)

    Loturco, Irineu; Artioli, Guilherme Giannini; Kobal, Ronaldo; Gil, Saulo; Franchini, Emerson

    2014-07-01

    This study investigated the relationship between punching acceleration and selected strength and power variables in 19 professional karate athletes from the Brazilian National Team (9 men and 10 women; age, 23 ± 3 years; height, 1.71 ± 0.09 m; and body mass [BM], 67.34 ± 13.44 kg). Punching acceleration was assessed under 4 different conditions in a randomized order: (a) fixed distance aiming to attain maximum speed (FS), (b) fixed distance aiming to attain maximum impact (FI), (c) self-selected distance aiming to attain maximum speed, and (d) self-selected distance aiming to attain maximum impact. The selected strength and power variables were as follows: maximal dynamic strength in bench press and squat-machine, squat and countermovement jump height, mean propulsive power in bench throw and jump squat, and mean propulsive velocity in jump squat with 40% of BM. Upper- and lower-body power and maximal dynamic strength variables were positively correlated to punch acceleration in all conditions. Multiple regression analysis also revealed predictive variables: relative mean propulsive power in squat jump (W·kg-1), and maximal dynamic strength 1 repetition maximum in both bench press and squat-machine exercises. An impact-oriented instruction and a self-selected distance to start the movement seem to be crucial to reach the highest acceleration during punching execution. This investigation, while demonstrating strong correlations between punching acceleration and strength-power variables, also provides important information for coaches, especially for designing better training strategies to improve punching speed.

  2. PREDICTOR VALIDITY OF MORPHOLOGICAL AND BASIC MOTOR VARIABLES FOR ASSESSMENT AND MONITORING OF THE KARATE PUNCH WITH THE LEAD ARM (OI-TSUKI

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    D.V. Doder

    2011-11-01

    Full Text Available The purpose of this study was to determine the influence of morphological and basic motor variables on the karate forward punch (oi tsuki as the only criterion variable, and secondly, to design a test battery for the assessment and monitoring of boys in karate, based on the predictive validity of the tested variables. A system of 25 variables in total – 12 morphological, 12 basic motor (the system of predictor variables and 1 variable of situational moving structure (criterion variable, i.e. the karate punch with the lead arm (oi-tsuki – was applied on a sample of 82 karate trainees aged between 10 and 14. The results of regression analysis showed that a system of morphological and basic motor variables had a significant impact on punching with the lead arm (p<0.01. The stepwise method identified the largest individual value in the case of morphological variables of arm length, upper arm skinfold and body mass at the level of significance p<0.01, whereas basic motor variables (long jump from a standing start and half squat with weight also have a level of significance p<0.01. This shows that respondents with longer arms, less subcutaneous fat tissue on the upper arm, higher body mass and greater static and explosive strength of the lower extremities achieve better results. Determining predictor validity by regression analysis and the stepwise method is employed in order to diagnose, assess, monitor and evaluate the direct punch with the lead arm, so the next battery of measurement instruments can be constructed: arm length, upper arm skinfold, body mass, half squat with weight, long jump from a standing position.

  3. Karate and karate injuries.

    OpenAIRE

    McLatchie, G

    1981-01-01

    The origins of karate and its evolution as a sport are described. Karate injuries tend to occur in three main areas: the head and neck, the viscera, and the limbs. Effective legislation controlling karate, which could help prevent injuries, is lacking at the moment and should be established. Recommendations for the prevention of injury include the introduction of weight classes, mandatory provision of protective equipment such as padded flooring, and the outlawing of certain uncontrollable m...

  4. Understanding Karate.

    Science.gov (United States)

    Cerny, Marilyn

    1981-01-01

    Karate and the martial arts help to develop endurance, flexibility, speed, coordination, and strength. Karate is an intellectual discipline which has a strong foundation in art and philosophy. The black belt system and the various schools of karate are discussed. (JN)

  5. Understanding Karate.

    Science.gov (United States)

    Cerny, Marilyn

    1981-01-01

    Karate and the martial arts help to develop endurance, flexibility, speed, coordination, and strength. Karate is an intellectual discipline which has a strong foundation in art and philosophy. The black belt system and the various schools of karate are discussed. (JN)

  6. Karate: Keep It Safe.

    Science.gov (United States)

    Jordan, David

    1981-01-01

    Safety guidelines for each phase of a karate practice session are presented to provide an accident-free and safe environment for teaching karate in a physical education or traditional karate training program. (JMF)

  7. Karate: Keep It Safe.

    Science.gov (United States)

    Jordan, David

    1981-01-01

    Safety guidelines for each phase of a karate practice session are presented to provide an accident-free and safe environment for teaching karate in a physical education or traditional karate training program. (JMF)

  8. KARATE WITH CONSTRUCTIVE LEARNING

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    Srikrishna Karanam

    2012-02-01

    Full Text Available Any conventional learning process involves the traditional hierarchy of garnering of information and then recall gathered information. Constructive learning is an important research area having wide impact on teaching methods in education, learning theories, and plays a major role in many education reform movements. It is observed that constructive learning advocates the interconnection between emotions and learning. Human teachers identify the emotions of students with varying degrees of accuracy and can improve the learning rate of the students by motivating them. In learning with computers, computers also should be given the capability to recognize emotions so as to optimize the learning process. Image Processing is a very popular tool used in the process of establishing the theory of Constructive Learning. In this paper we use the Optical Flow computation in image sequences to analyze the accuracy of the moves of a karate player. We have used the Lucas-Kanade method for computing the optical flow in image sequences. A database consisting of optical flow images by a group of persons learning karate is formed and the learning rates are analyzed in order to main constructive learning. The contours of flow images are compared with the standard images and the error graphs are plotted. Analysis of the emotion of the amateur karate player is made by observing the error plots.

  9. Karate moves recognition from skeletal motion

    Science.gov (United States)

    Bianco, Simone; Tisato, Francesco

    2013-03-01

    This work aims at automatically recognizing sequences of complex karate movements and giving a measure of the quality of the movements performed. Since this is a problem which intrinsically needs a 3D model, in this work we propose a solution taking as input sequences of skeletal motions that can derive from both motion capture hardware or consumer-level, off the shelf, depth sensing systems. The proposed system is constituted by four different modules: skeleton representation, pose classification, temporal alignment, and scoring. The proposed system is tested on a set of different punch, kick and defense karate moves executed starting from the simplest case, i.e. fixed static stances (heiko dachi) up to sequences in which the starting stances is different from the ending one. The dataset has been recorded using a single Microsoft Kinect. The dataset includes the recordings of both male and female athletes with different skill levels, ranging from novices to masters.

  10. Biomechanical study of full-contact karate contrasted with boxing.

    Science.gov (United States)

    Schwartz, M L; Hudson, A R; Fernie, G R; Hayashi, K; Coleclough, A A

    1986-02-01

    It is known that boxers suffer a characteristic cumulative brain injury from repeated blows to the head that correlates well with the number of bouts fought. Much less is known about full-contact karate (kickboxing), which is relatively new. In full-contact karate, punches and kicks are actually landed, rather than being focused to culminate just short of an opponent, as practiced in traditional karate. Although a combatant can win on points, the surest means of victory is a knockout. Consequently, fighters strive to land blows to the head. To investigate the relative force of kicks and punches, a dummy head was mounted 175 cm above the floor (to simulate a 50th-percentile man standing erect) and 125 cm above the floor (to simulate the man in a crouched position) on a universal joint permitting motion about three axes. The mechanism was contrived to provide constant rotational stiffness, and springs provided constant restorative moments about the three axes. The texture of soft tissue was simulated by a mask of visco-elastic foamed materials. Fourteen karate experts punched and kicked the dummy. Accelerometer measurements in the 90- to 120-G range indicated that safety-chops (hand protectors) and safety-kicks (foot padding) did not reduce acceleration of the dummy. Ten-ounce boxing gloves mitigated peak acceleration to some extent. Kicks and punches produced accelerations in the same range. Violent acceleration of the head by any means produces injury. The authors conclude that, if full-contact karate is widely practiced, cases of kickboxer's encephalopathy will soon be reported.

  11. Paper Punch Tape

    CERN Multimedia

    Physicists coded and recorded their programs through series of holes on punch paper tape or on punched cards. It was popular in the 1970s due to its high throughput speed and low cost, paper tape was one of the original data storage methods for computers. Information was encoded in the distinct pattern of holes punched in the paper; the paper itself was oiled to facilitate being run through the reading mechanism and to prevent tears due to brittleness. Though the paper was cheap, it had low storage capacity (only a few dozen kilobytes per roll) and the machinery involved in punching the holes was quite expensive. Higher capacity alternatives, such as magnetic tape, has get developped.

  12. Punching strengthen

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    Hazem M.F. Elbakry

    2015-12-01

    Full Text Available An experimental and analytical study on the punching strengthening of reinforced concrete two-way slabs using external steel plates is presented. Five reinforced concrete square slabs of 100 mm thickness were tested over simply supported four sides of 1000 mm span under central square patch load of 100 mm size up to failure. One control slab was tested without strengthening; however, four tested slabs were strengthened using four configurations of square steel plates provided with steel anchor shear studs. Such configurations considered two different plate thickness, two plate side dimensions and different arrangement and diameter of shear studs. The strengthened four slabs showed improved stiffness and punching shear capacity. The magnitude of improvement depended on the plate dimensions and the studs diameter and arrangement. An analytical approach was proposed for predicting the punching shear strength increase due to using the strengthening steel plate. The proposed approach was applied to the tested specimens with the use of the punching shear strength equations adopted by several codes of practice and proved to be in good agreement with the test results. Generally, this research presented a practical strengthening concept that can be used to increase the punching shear capacity of two-way slabs.

  13. STUDY OF EXTRAKURICULAR KARATE EVALUATION TOWARDS ACHIEVEMENT OF STUDENTS KARATE "STUDI EVALUASI PEMBINAAN EKSTRAKURIKULER KARATE TERHADAP PRESTASI KARATE PELAJAR"

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    Gestiawan Candra Pramulyarso

    2017-06-01

    Full Text Available The purpose of this research is to figure out the development of karate extracurricular in SMA N 1 Slawi, SMA N 2 Slawi and SMA N 1 Bojong. This is a qualitative research with percentage descriptive approach. The result shows that there are some disadvantages in the development of karate exracuriccular so that the student’s karate achievement in Tegal Regency is not maximum. First, there is no selection for athletes. Second, the programs for training have not been implemented well. Also the coaches do not have legal certificate. Third, the infrastructures for karate have not supported the athlete’s achievement yet. Fourth, the management of karate organization does not run well. The last, karate extraxurricular does not get enough funds to support their activities. Based on the data obtained from the research, it can be concluded that there are some constraints which hamper the efforts to get higher achievement in karate.

  14. INJURY PROFILE IN WOMEN SHOTOKAN KARATE CHAMPIONSHIPS IN IRAN(2004-2005

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    Farzin Halabchi

    2007-10-01

    Full Text Available The aims of this paper were to record injury rates among Iranian women competitive Shotokan karate athletes and propose possible predisposing factors. A prospective recording of the injuries resulting from all matches in 6 consecutive women national Shotokan Karate Championships in all age groups in Iran (season 2004-2005 was performed. Data recorded included demographic characteristics (Age and Weight, athletic background (rank, years of experience, time spent training and previous injuries, type, location and reason for the injury, and the result of the match. Results indicate 186 recorded injuries from a total of 1139 bouts involving 1019 athletes, therefore there were 0.163 injury per bout [C.I. 95%: 0.142-0.184] and 183 injuries per 1000 athletes [C.I. 95%: 159-205]. Injuries were most commonly located in the head and neck (55.4% followed by the lower limb (21%, upper limb (12.9% and trunk (10.8%. Punches (48. 4% were associated with more injuries than kicks (33.3%. The injuries consisted of muscle strain and contusion (81, 43.6%, hematoma and epistaxis (49, 26.3%, lacerations and abrasions (28, 15. 1%, concussion (13, 7%, tooth avulsion or subluxation (3, 1.6%, joint dislocation (3, 1.6% and fractures (3, 1.6%. In conclusion, as the majority of injuries are minor, and severe or longstanding injuries are uncommon, it can be argued that shotokan karate is a relatively safe for females, despite its image as a combat sport, where ostensibly the aim appears to injure your opponent. Further research is needed to evaluate the effective strategies to minimize the risk of injuries

  15. Studies of lubricants and punch design in punching of stainless steel

    DEFF Research Database (Denmark)

    Olsson, David Dam; Bay, Niels; Andreasen, Jan Lasson

    2004-01-01

    Environmentally hazardous lubricants such as chlorinated paraffin oils are often applied in punching and blanking operations especially involving stainless steel workpiece materials. This is due to the fact that punching and blanking are among the tribologically most difficult forming operations...

  16. Computer Data Punch Cards

    CERN Multimedia

    Those card are printed with minimal layout aids for the formatting of FORTRAN programs, plus extra guidelines every ten columns suggesting a generic tabular data layout. A punch card is a piece of stiff paper that can be used to contain digital information represented by the presence or absence of holes in predefined positions. Punched cards were used for specialized unit record machines, organized into semiautomatic data processing systems, used punched cards for data input, output, and storage. Furthermore many new digital computers started to used punched cards.

  17. Studies of lubricants and punch design in punching of stainless steel

    DEFF Research Database (Denmark)

    Olsson, David Dam; Bay, Niels; Andreasen, Jan Lasson

    2004-01-01

    Environmentally hazardous lubricants such as chlorinated paraffin oils are often applied in punching and blanking operations especially involving stainless steel workpiece materials. This is due to the fact that punching and blanking are among the tribologically most difficult forming operations...... topography....

  18. PLYOMETRY TRAINING IN KARATE- SPECIFICS

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    Sandra Vujkov

    2007-05-01

    Full Text Available Plyometric training is one of the most interesting innovations in the recent few decades in the process of sport training. The experience of coaches and athletes who have practised this kind of training proces brought them to higher performance in sports results. Plyometric exercise is developed and applied in conformity with certain sport requirements. Plyometry is a training method, which should be applied in combination with other methods for strenght development in overall programme of training, all in favour of improvement of the relationship between maximal strenght and explosive strenght, being very important for karate sport. This paper deals with a proposal of a few exercises that should have a positive transfer on improvement of the performance of karate tehnique.

  19. CAUSES OF PROPENSITY FOR ELITE ATHLETES IN UNIVERSITIES TO TAKE UP KARATE AND THEIR EXPECTATIONS

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    Oğuz ÖZBEK

    2011-12-01

    Full Text Available This study aims to find out the causes of propensity for elite athletes in universities in Turkey to take up karate branch, their expectations and reasons of involvement. A survey method was used in the study. The population for the study was made of elite students in universities engaged in karate. The measurement instrument was administered to 97 students. Data obtained from the survey was tested by Mann-Whitney U test and Kruskall-Wallis test. Elite athletes in karate branch in universities indicated that their families had more influence on their decision to take up this branch. Elite athletes in universities indicated that teachers of physical education and the press media have had almost no influence on their decision. Athletes considered the enjoyment of success as an important reason for engaging in karate, while joining a group of friends easily was considered unimportant. It was found that athletes in the national karate team had higher expectation than those not in the national team for enjoyment of success, obtaining material gains and being famed nationwide. It was further found out that as the length of time of involvement in karate increased, the desire increased for obtaining material gains, becoming famed, becoming a trainer, a referee, being famed nationwide, enjoying success and getting in the national team.

  20. A Biomechanical Analysis of the Karate Chop.

    Science.gov (United States)

    Cavanagh, Peter R.; Landa, Jean

    Although the sport of karate has been somewhat neglected by scientists, the following two isolated biomechanical studies exist in literature: (1) tracings of a karate chop in two planes were presented, but no data was given concerning the rates of movement of the limb segments, and (2) pre- and postimpact phenomena of five subjects were studied,…

  1. NCDC Punched Card Reference Manuals

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Documentation for using and reading punched cards kept at the National Weather Records Center (NWRC, previous name for NCDC and NCEI). Many of these punched card...

  2. THE ASSERTIVENESS OF PEOPLE WHO PRACTICE KARATE

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    Szark-Eckardt Miroslawa

    2012-04-01

    Full Text Available Assertiveness is the ability to express your thoughts, beliefs and opinions without the feeling of internal tension, that is why it is a desired trait of character. One of the examples of sports disciplines in which assertiveness can play a desired role is karate. One of the aims of this paper was to answer the question, whether the act of doing karate influences the level of assertiveness among people who practice it and to compare the results with the level of assertiveness declared by people who do other sports. The method applied in this paper was the diagnostics survey, while the tool was the questionnaire form based on the Rathus Assertiveness Scale. 50 students who practice karate on regular basis and 50 students who do other sports participated in the research. It is undeniable that the level of assertiveness among people who practice karate is higher in comparison to people who do other sports. Karate doers, both men and women obtained better results compared to the second group of sportsmen/women. This regularity can be observed among men, but it is more perceptible among women. As the research presents, people who attend karate trainings at least three times a week are characterized by a higher level of assertiveness in comparison to those who attend the training once a week.

  3. Karate Kid: Games and Activities for Introducing Karate to Early Elementary Students

    Science.gov (United States)

    Aljadeff-Abergel, Elian

    2011-01-01

    Karate can contribute to learning in all three domains (psychomotor, cognitive, and affective), even in elementary-age children. Nevertheless, physical education teachers receive minimal or no training in teaching karate in school settings and are skeptical about doing so. The purpose of this article is to enable physical educators to teach…

  4. Karate Kid: Games and Activities for Introducing Karate to Early Elementary Students

    Science.gov (United States)

    Aljadeff-Abergel, Elian

    2011-01-01

    Karate can contribute to learning in all three domains (psychomotor, cognitive, and affective), even in elementary-age children. Nevertheless, physical education teachers receive minimal or no training in teaching karate in school settings and are skeptical about doing so. The purpose of this article is to enable physical educators to teach…

  5. Punch Card Programmable Microfluidics

    CERN Document Server

    Korir, George

    2014-01-01

    Small volume fluid handling in single and multiphase microfluidics provides a promising strategy for efficient bio-chemical assays, low-cost point-of-care diagnostics and new approaches to scientific discoveries. However multiple barriers exist towards low-cost field deployment of programmable microfluidics. Incorporating multiple pumps, mixers and discrete valve based control of nanoliter fluids and droplets in an integrated, programmable manner without additional required external components has remained elusive. Combining the idea of punch card programming with arbitrary fluid control, here we describe a self-contained, hand-crank powered, multiplex and robust programmable microfluidic platform. A paper tape encodes information as a series of punched holes. A mechanical reader/actuator reads these paper tapes and correspondingly executes a series of operations onto a microfluidic chip coupled to the platform in a plug-and-play fashion. Enabled by the complexity of codes that can be represented by a series ...

  6. Punch card programmable microfluidics.

    Science.gov (United States)

    Korir, George; Prakash, Manu

    2015-01-01

    Small volume fluid handling in single and multiphase microfluidics provides a promising strategy for efficient bio-chemical assays, low-cost point-of-care diagnostics and new approaches to scientific discoveries. However multiple barriers exist towards low-cost field deployment of programmable microfluidics. Incorporating multiple pumps, mixers and discrete valve based control of nanoliter fluids and droplets in an integrated, programmable manner without additional required external components has remained elusive. Combining the idea of punch card programming with arbitrary fluid control, here we describe a self-contained, hand-crank powered, multiplex and robust programmable microfluidic platform. A paper tape encodes information as a series of punched holes. A mechanical reader/actuator reads these paper tapes and correspondingly executes operations onto a microfluidic chip coupled to the platform in a plug-and-play fashion. Enabled by the complexity of codes that can be represented by a series of holes in punched paper tapes, we demonstrate independent control of 15 on-chip pumps with enhanced mixing, normally-closed valves and a novel on-demand impact-based droplet generator. We demonstrate robustness of operation by encoding a string of characters representing the word "PUNCHCARD MICROFLUIDICS" using the droplet generator. Multiplexing is demonstrated by implementing an example colorimetric water quality assays for pH, ammonia, nitrite and nitrate content in different water samples. With its portable and robust design, low cost and ease-of-use, we envision punch card programmable microfluidics will bring complex control of microfluidic chips into field-based applications in low-resource settings and in the hands of children around the world.

  7. Punch card programmable microfluidics.

    Directory of Open Access Journals (Sweden)

    George Korir

    Full Text Available Small volume fluid handling in single and multiphase microfluidics provides a promising strategy for efficient bio-chemical assays, low-cost point-of-care diagnostics and new approaches to scientific discoveries. However multiple barriers exist towards low-cost field deployment of programmable microfluidics. Incorporating multiple pumps, mixers and discrete valve based control of nanoliter fluids and droplets in an integrated, programmable manner without additional required external components has remained elusive. Combining the idea of punch card programming with arbitrary fluid control, here we describe a self-contained, hand-crank powered, multiplex and robust programmable microfluidic platform. A paper tape encodes information as a series of punched holes. A mechanical reader/actuator reads these paper tapes and correspondingly executes operations onto a microfluidic chip coupled to the platform in a plug-and-play fashion. Enabled by the complexity of codes that can be represented by a series of holes in punched paper tapes, we demonstrate independent control of 15 on-chip pumps with enhanced mixing, normally-closed valves and a novel on-demand impact-based droplet generator. We demonstrate robustness of operation by encoding a string of characters representing the word "PUNCHCARD MICROFLUIDICS" using the droplet generator. Multiplexing is demonstrated by implementing an example colorimetric water quality assays for pH, ammonia, nitrite and nitrate content in different water samples. With its portable and robust design, low cost and ease-of-use, we envision punch card programmable microfluidics will bring complex control of microfluidic chips into field-based applications in low-resource settings and in the hands of children around the world.

  8. The damaging punch.

    Science.gov (United States)

    Atha, J; Yeadon, M R; Sandover, J; Parsons, K C

    The mechanical properties of a boxing punch have been determined using several techniques. The results are consistent with the medical consequences of boxing discussed in the report of the Board of Science and Education Working Party on boxing. Data were gathered from a world ranked British professional heavyweight, Frank Bruno, as he punched an instrumented, padded target mass suspended as a ballistic pendulum. Within 0.1 s of the start the punch had travelled 0.49 m and attained a velocity on impact of 8.9 m/s. The peak force on impact of 4096N (0.4 ton), attained within 14 ms of contact, represents a blow to the human head of up to 6320N (0.63 ton). The transmitted impulse generated an acceleration of 520 m/s2 (53 g) in the target head. For comparison an equivalent blow would be delivered by a padded wooden mallet with a mass of 6 kg (13 lbs) if swung at 20 mph.

  9. Karate As A Self-Defense Art In Japan

    OpenAIRE

    Sitepu, Andreas Temanta

    2010-01-01

    Judul kertas karya ini adalah KARATE AS A SELF-DEFENSE ART IN JAPAN. Karate adalah sebuah seni bela diri yang berasal dari Negara Jepang yang sampai saat ini tetap dilestarikan. Asal kata karate tersebut yakni dibagi dalam dua kata yaitu kare artinya tangan te artinya kosong. Jadi dapat disimpulkan bahwa karate adalah suatu seni bela diri yang menggunakan tangan kosong artinya tidak menggunakan senjata. Kertas karya ini juga menjelaskan pengertian-pengertian, aliran-aliran yang terdapat di da...

  10. Individualization of technique preparation of skilled karate sportsmen.

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    Ashsanin V.S.

    2011-02-01

    Full Text Available In the article is considered individualization of sporting preparation in single combats. Materials of research of competition activity are presented in karate allowing to individualize technique preparation of skilled karate sportsmen to the effective actions in moments of the sharp intensifying of competition fight. The generic and individual models of shock technique of skilled karate sportsmen are worked out.

  11. MANAGERIAL FACTORS OF MOTIVATION IN KARATE SPORT

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    Milan Nešić

    2012-09-01

    Full Text Available The matter of motivation represents a very complex psychological problem that must be reviewed while researching from very wide aspect of the value components that are dominant in the social environment. Karate as a sport is an integral part of the social system and follows all value criteria that currently exist. Results of research held on the survey method that conducted sample of 170 respondents including various manager positions among karate clubs in Vojvodina, are based on determined expression of their interconnections of motivational dispositions of particular mangers in karate sport. In other words the existence of certain indicated motivational dispositions is indicated and explained in the light of various important aspects of managerial positions that are significant element in this sport.

  12. Functional Assessment of Corticospinal System Excitability in Karate Athletes.

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    Fiorenzo Moscatelli

    Full Text Available To investigate the involvement of the primary motor cortex (M1 in the coordination performance of karate athletes through transcranial magnetic stimulation (TMS.Thirteen right-handed male karate athletes (25.0±5.0 years and 13 matched non-athlete controls (26.7±6.2 years were enrolled. A single-pulse TMS was applied using a figure-eight coil stimulator. Resting motor threshold (rMT was determined. Surface electromyography was recorded from the first dorsal interosseous muscle. Motor evoked potential (MEP latencies and amplitudes at rMT, 110%, and 120% of rMT were considered. Functional assessment of the coordination performance was assessed by in-phase (IP and anti-phase (AP homolateral hand and foot coordination tasks performed at 80, 120, and 180 bpm.Compared to controls, athletes showed lower rMT (p<0.01, shorter MEP latency (p<0.01 and higher MEP amplitude (p<0.01, with a significant correlation (r = 0.50, p<0.01 between rMT and MEP latency. Coordination decreased with increasing velocity, and better IP performances emerged compared to AP ones (p<0.001. In general, a high correlation between rMT and coordination tasks was found for both IP and AP conditions.With respect to controls, karate athletes present a higher corticospinal excitability indicating the presence of an activity-dependent alteration in the balance and interactions between inhibitory and facilitatory circuits determining the final output from the M1. Furthermore, the high correlation between corticospinal excitability and coordination performance could support sport-specific neurophysiological arrangements.

  13. Effect of adapted karate training on quality of life and body balance in 50-year-old men

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    Marie-Ludivine Chateau-Degat

    2010-08-01

    Full Text Available Marie-Ludivine Chateau-Degat1, Gérard Papouin2, Philippe Saint-Val3, Antonio Lopez21Axe sante des populations et environmentale, CHUQ, Laval University, Quebec, Canada; 2Service de Cardiologie, Centre Hospitalier Territorial du Taone, 3Fédération Tahitienne de Karaté, Papeete, French PolynesiaBackground: Aging is associated with a decrease in physical skills, sometimes accompanied by a change in quality of life (QOL. Long-term martial arts practice has been proposed as an avenue to counter these deleterious effects. The general purpose of this pilot study was to identify the effects of an adapted karate training program on QOL, depression, and motor skills in 50-year-old men.Methods and design: Fifteen 50-year-old men were enrolled in a one-year prospective experiment. Participants practiced adapted karate training for 90 minutes three times a week. Testing sessions, involving completion of the MOS 36-item Short Form Health Survey (SF36 and Beck Depression Inventory, as well as motor and effort evaluation, were done at baseline, and six and 12 months.Results: Compared with baseline, participants had better Beck Depression Inventory scores after one year of karate training (P < 0.01 and better perception of their physical health (P < 0.01, but not on the mental dimension (P < 0.49. They also improved their reaction time scores for the nondominant hand and sway parameters in the eyes-closed position (P < 0.01.Conclusion: Regular long-term karate practice had favorable effects on mood, perception of physical health confirmed by better postural control, and improved performance on objective physical testing. Adapted karate training would be an interesting option for maintaining physical activity in aging.Keywords: karate, balance, training, sport, aging

  14. UK Punched Card Reference Manuals

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Documentation for using and reading punched cards kept at the UK Met Office. Includes five Marine and one upper air manual, dated from 1953-1981.

  15. Analysis of the Wing Tsun Punching Methods

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    Jeff Webb

    2012-07-01

    Full Text Available The three punching techniques of Wing Tsun, while few in number, represent an effective approach to striking with the closed fist. At first glance, the rather short stroke of each punch would seem disproportionate to the amount of power it generates. Therefore, this article will discuss the structure and body mechanics of each punch, in addition to the various training methods employed for developing power. Two of the Wing Tsun punches, namely the lifting punch and the hooking punch, are often confused with similar punches found in Western boxing. The key differences between the Wing Tsun and boxing punches, both in form and function, will be discussed. Finally, the strategy for applying the Wing Tsun punches will serve as the greatest factor in differentiating them from the punches of other martial arts styles.

  16. Small punch creep test in a 316 austenitic stainless steel

    Energy Technology Data Exchange (ETDEWEB)

    Saucedo-Munoz, M. L.; Komazaki, S. I.; Hashida, T.; Lopez-Hirata, V. M.

    2015-03-30

    The small punch creep test was applied to evaluate the creep behavior of a 316 type austenitic stainless steel at temperatures of 650, 675 and 700 degree centigrade. The small punch test was carried out using a creep tester with a specimen size of 10x10x0.3 mm at 650, 675 and 700 degree centigrade using loads from 199 to 512 N. The small punch creep curves show the three stages found in the creep curves of the conventional uniaxial test. The conventional creep relationships which involve parameters such as creep rate, stress, time to rupture and temperature were followed with the corresponding parameters of small punch creep test and they permitted to explain the creep behavior in this steel. The mechanism and activation energy of the deformation process were the grain boundary sliding and diffusion, respectively, during creep which caused the intergranular fracture in the tested specimens. (Author)

  17. Effect of adapted karate training on quality of life and body balance in 50-year-old men

    Science.gov (United States)

    Marie-Ludivine, Chateau-Degat; Papouin, Gérard; Saint-Val, Philippe; Lopez, Antonio

    2010-01-01

    Background Aging is associated with a decrease in physical skills, sometimes accompanied by a change in quality of life (QOL). Long-term martial arts practice has been proposed as an avenue to counter these deleterious effects. The general purpose of this pilot study was to identify the effects of an adapted karate training program on QOL, depression, and motor skills in 50-year-old men. Methods and design Fifteen 50-year-old men were enrolled in a one-year prospective experiment. Participants practiced adapted karate training for 90 minutes three times a week. Testing sessions, involving completion of the MOS 36-item Short Form Health Survey (SF36) and Beck Depression Inventory, as well as motor and effort evaluation, were done at baseline, and six and 12 months. Results Compared with baseline, participants had better Beck Depression Inventory scores after one year of karate training (P karate practice had favorable effects on mood, perception of physical health confirmed by better postural control, and improved performance on objective physical testing. Adapted karate training would be an interesting option for maintaining physical activity in aging. PMID:24198552

  18. Effects of cognitive, motor, and Karate Training on cognitive functioning and emotional well-being of elderly people

    Directory of Open Access Journals (Sweden)

    Petra eJansen

    2012-02-01

    Full Text Available The present study investigated the influence of cognitive, motor, and Karate (accordingly the guidelines of the German-Karate-Federation, DKV training on the cognitive functioning and mental state of older people between 67 and 93 years of age. The three training groups consisted of 12 elderly participants; the waiting control group included 9 participants. Before the training, participants were evaluated with cognitive measurements (cognitive speed: number connection test, number symbol test; memory performance: digit-span test, blocking-tapping test, figure test and a measurement of emotional well-being. After this pre-testing they participated the specific training in on average 16 one-hour training sessions. The cognitive training exercised inductive thinking ability, the motor training worked on easy stretching and mobilization techniques, and the Karate training taught tasks of self-defense, partner training and Katas. After 16 training sessions all tests were applied again. The results show no significant difference in cognitive improvement dependent on group between the three training conditions. However a significant improvement was found in the emotional mental state measurement for the Karate group compared to the waiting control group. This result suggests that the high involvement in Karate leads to a feeling of self-worth and that even in elderly people integration of new sports helps to improve quality of life.

  19. ANÁLISIS TÉCNICO DE KARATECAS DE NIVEL NACIONAL DURANTE LA COMPETICIÓN DE KUMITE Technical analysis of karate expert during Kumite competition

    Directory of Open Access Journals (Sweden)

    Juan Miguel Gómez-Valadés Horrillo

    2013-02-01

    Full Text Available Diversos estudios han analizado el karate para intentar aumentar el rendimiento de los deportistas implicados, mediante la evaluación del trabajo técnico, tanto en condiciones experimentales, como en situación real. El objetivo de este estudio fue el análisis del rendimiento de los karatecas en situación real de competición, identificando cuáles son las técnicas más eficaces. Se observaron 20 combates de karate de nivel nacional, de la categoría absoluta, donde fueron registradas todas las acciones técnicas realizadas. Los karatecas utilizaban más técnicas de puño que de patadas. La forma que tienen de realizar la mayoría de las técnicas, fue mediante el ataque, siendo la táctica con la que más se puntuaba. La técnica más utilizada en combate fue el gyaku tsuki, aunque la más efectiva fue el kizami tsuki derecho. La técnica de pierna más utilizada fue el mawasi geri. También se observó una falta de eficacia en las técnicas realizadas, ya que un gran porcentaje de técnicas no consiguieron puntuar. Estos resultados pueden ayudar a mejorar el entrenamiento para la competición de karate, sobre todo orientando dicho entrenamiento cada vez más a situaciones reales de competición.    Several studies have analyzed Karate in order to increase the athlete’s performance through assessment of the karate skills in experimental and real situation. The aim of this study was the analysis of karate expert performance in real situation, trying to identify what skills are most effectively. 20 combats of national contest were observed in senior category. All technical and tactical actions were recorded and categorized. Punches skills were more used than kicks skills by karate experts, and the way of carry out techniques was through attack. The most effective strategy was the attack. The most used technique was gyaku tsuki, although most effective one was right kizami tsuki. Leg technique most used was mawasi geri. A lack of

  20. KARATE - a code for VVER-440 core calculation

    Energy Technology Data Exchange (ETDEWEB)

    Gado, J.; Hegedus, Cs.J.; Hegyi, Gy.; Kereszturi, A.; Makai, M.; Maraczi, Cs.; Telbisz, M.

    1994-12-31

    A modular calculation system has been elaborated at the KFKI Atomic Energy Research Institute for VVER-440 cores. The purpose of KARATE is the calculation of neutron physical and thermal-hydraulic processes in the core at normal, startup, and slow transient conditions. KARATE is under validation and verification (V&V) against mathematical, experimental, and operational data.

  1. NCDC Punched Card Inventory - 1950s

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Index of foreign weather data available on punched cards held at the Joint Punched Card Library in Asheville NC, produced in the late 1950s, and also station/data...

  2. Influence of footings stiffness on punching resistance

    Directory of Open Access Journals (Sweden)

    Ĺudovít Fillo

    2016-03-01

    Full Text Available The presented paper brings new aspects of punching resistance due to influence of footing stiffness and consequential ground stresses distribution. Diagrams of design load versus effective depth were created coming from new design criteria which depend on the maximum punching resistance defined from shear-bending failure and on the maximum punching resistance defined from crushing of concrete struts.

  3. Karate Kumite: How to Optimize Performance - Book analysis

    Directory of Open Access Journals (Sweden)

    Tomás Herrera-Valenzuela

    2016-12-01

    Full Text Available This work reviews the book entitled Karate Kumite: How to Optimize Performance, edited in English by Helmi Chaabane, PhD., in 2015. The book is composed of five chapters and a total of seven authors participate in it. The first chapter, “Performance Analysis in Karate”, analyzes the temporal structure of combat. The second chapter, “Physiological Characteristics of Karate Athletes and Karate-Specific Tasks” describes the cost and contribution of energy systems, cardiovascular response, blood lactate and hormonal response to combat. The third chapter, “Physical Determinants of Karate Kumite”, analyzes the muscular power, maximum strength, acceleration, speed, reaction time and flexibility of karate. The fourth chapter, “Training Load Monitoring”, describes different methods for monitoring the internal load. Finally the last chapter, “Physical and Physiological Assessment”, presents general and specific tests used in karate. The sound research background of the authors, as well as the extensive use of up to date literature, results in a book of high scientific value. In addition, this is a digital, open-access book that can be accessed without restriction. In conclusion, this is a highly recommended book for coaches, practitioners and professionals related to karate.

  4. Low Risk of Injuries in Young Adolescents Participating in Top-Level Karate Competition.

    Science.gov (United States)

    Arriaza, Rafael; Inman, David; Arriaza, Alvaro; Saavedra, Miguel A

    2016-02-01

    Prospective studies on injuries in martial arts competition are scarce, especially those involving young practitioners, but the upsurge of children and adolescents taking part in organized training and competition in these sports requires clarification of the injury risk that they represent for youths. Top-level karate competition for young adolescents (cadets, or 14- to 15-year-olds) has a low injury rate and can be safely promoted. Descriptive epidemiological study. Prospective recording of the injuries resulting from all bouts in 3 consecutive World Karate Championships (2009, 2011, and 2013) for cadets was performed. Data were collected prospectively in situ with checklists that described competitor sex, bout category, and weight as well as injured area, diagnosis, mechanism of injury, severity, and treatment. A total of 1020 bouts were reviewed, 671 in the male category and 349 in the female category. A total of 61 injuries were recorded. Of those, only 3 were time-loss injuries. During the 2009 and 2011 championships, there was 1 injury per 25.6 fights, while during the 2013 championship the number of injuries increased, with 1 injury per 10 fights (P = .003). There was no statistical difference in the total injury rate between the male and female categories (P = .71), with an odds ratio of 1.16 (95% CI, 0.52-2.55). The injury rate for cadet top-level karate competition found in this prospective study is much lower than the rates previously published for karate or other martial arts competitions, but there seems to be a marked increase as more championships are held, which is a matter of concern. © 2015 The Author(s).

  5. Masaru Shintani: The Making of a Modern Canadian Karate Master

    Directory of Open Access Journals (Sweden)

    Robert Toth

    2012-07-01

    Full Text Available This article looks at the life of Japanese/Canadian karate pioneer, Masaru Shintani, from his birth in Vancouver, British Columbia, until his death in Kapuskasing, Ontario. After more than thirty years of teaching, Shintani created one of the largest karate organizations in North America with over 27,000 members. Shintani also invented Shindo, a martial art facilitating the use of an ancient weapon, the short stick, with modern techniques. For this article, many of Shintani’s senior students helped to reconstruct his life and explain his complex personality with recollections of their teacher. From the beginning of his karate training in an internment camp, to the eventual achievement of 9th-degree black belt, Masaru Shintani epitomized the modern karate master.

  6. Physical and physiological profile of elite karate athletes.

    Science.gov (United States)

    Chaabène, Helmi; Hachana, Younés; Franchini, Emerson; Mkaouer, Bessem; Chamari, Karim

    2012-10-01

    This review focuses on the most important physical and physiological characteristics of karate athletes from the available scientific research. It has been established that karate's top-level performers require a high fitness level. Top-level male karate athletes are typified by low body fat and mesomorphic-ectomorphic somatotype characteristics. Studies dealing with body composition and somatotype of females are scarce. Aerobic capacity has been reported to play a major role in karate performance. It prevents fatigue during training and ensures the recovery processes during rest periods between two subsequent bouts of fighting activity within a fight and between two consecutive matches. It has been established that there is no significant difference between male and female kata (forms) and kumite (sparring/combat) athletes with regard to aerobic performance. Nevertheless, further studies are needed to support these findings. Concerning anaerobic performance, there is a difference in maximal power explored by the force-velocity test between national and international level karatekas (karate practitioners) but, for the maximum accumulated oxygen deficit test there is no difference between them. Muscle explosive power plays a vital role in a karateka's capacity for high-level performance. However, it has been revealed that vertical jump performance, maximal power and maximal velocity differed between national- and international-level karatekas. Moreover, it has been reported that karate performance relies more on muscle power at lower loads rather than higher ones. Thus, karate's decisive actions are essentially dependent on muscle explosive power in both the upper and lower limbs. With regard to dynamic strength, limited research has been conducted. The maximal absolute bench press, half-squat one-repetition maximum and performance of isokinetic tasks differed significantly between highly competitive and novice male karatekas. Studies on female karate athletes do

  7. Physiological stress and performance analysis to karate combat.

    Science.gov (United States)

    Chaabene, Helmi; Hellara, Ilhem; Ghali, Faten B; Franchini, Emerson; Neffati, Fedoua; Tabben, Montassar; Najjar, Mohamed F; Hachana, Younés

    2016-10-01

    This study aimed to evaluate the relationship between physiological, and parameters of performance analysis during karate contest. Nine elite-level karate athletes participated in this study. Saliva sample was collected pre- and post-karate combat. Salivary cortisol (sC) post-combat 2 raised significantly compared to that recorded at pre-combat 1 (Δ%=105.3%; P=0.04; dz=0.78). The largest decrease of the salivary T/C ratio (sR) compared to pre-combat 1 was recorded post-combat 2 (Δ%=-43.5%; P=0.03). Moreover, blood lactate concentration post-combat 1 correlated positively to sCpost-combat 1 (r=0.66; P=0.05) and negatively to both salivary testosterone (sT) (r=-0.76; P=0.01) and sRpost-combat 1 (r=-0.76; P=0.01). There was no significant relationship between hormonal measures and parameters of match analysis. Although under simulated condition, karate combat poses large physiological stress to the karateka. Additionally, physiological strain to karate combat led to a catabolic hormonal response.

  8. Facial and Dental Injuries Facial and Dental Injuries in Karate.

    Science.gov (United States)

    Vidovic-Stesevic, Vesna; Verna, Carlalberta; Krastl, Gabriel; Kuhl, Sebastian; Filippi, Andreas

    2015-01-01

    Karate is a martial art that carries a high trauma risk. Trauma-related Swiss and European karate data are currently unavailable. This survey seeks to increase knowledge of the incidence of traumatic facial and dental injuries, their emergency management, awareness of tooth rescue boxes, the use of mouthguards and their modifications. Interviews were conducted with 420 karate fighters from 43 European countries using a standardized questionnaire. All the participants were semi-professionals. The data were evaluated with respect to gender, kumite level (where a karate practitioner trains against an adversary), and country. Of the 420 fighters interviewed, 213 had experienced facial trauma and 44 had already had dental trauma. A total of 192 athletes had hurt their opponent by inflicting a facial or dental injury, and 290 knew about the possibility of tooth replantation following an avulsion. Only 50 interviewees knew about tooth rescue boxes. Nearly all the individuals interviewed wore a mouthguard (n = 412), and 178 of them had made their own modifications to the guard. The results of the present survey suggest that more information and education in wearing protective gear are required to reduce the incidence of dental injuries in karate.

  9. Karate como prática pedagógica

    Directory of Open Access Journals (Sweden)

    Flávio Penteado de Souza

    2016-12-01

    Full Text Available Este artigo abordou a prática pedagógica do karate dentro do ambiente escolar, ressaltando diversos aspectos positivos em crianças e adolescentes. Os sujeitos envolvidos foram alunos do 1º ao 8º ano do Programa Mais Educação da Escola Jardim Paraíso, tanto da área rural quanto da urbana. A metodologia de pesquisa foi a observação participante. Os principais autores que embasaram a pesquisa foram Vinicio Antony e Funakoshi Gichin. Conclui-se que o karate pode ser incorporado à prática docente no âmbito escolar, trazendo bons resultados quanto ao comportamento, à atenção, à concentração e àrelação social entre os alunos. Palavras-chave: Programa Mais Educação; prática pedagógica; Karate.

  10. Analisis Pemikiran Zen Dalam Seni Beladiri Karate Aliran Shotokan Shotokan No Karate No Goshinjutsu Ni Okiru Zen No Kangaekata No Bunseki

    OpenAIRE

    Sitepu, Mariana Febrina

    2010-01-01

    Kebudayaan adalah segala hasil cipta karya manusia yang dimiliki oleh setiapmasyarakat. Begitu juga dengan masyarakat yang memiliki berbagai macam kebudayaan yang sampai saat ini masih terus dilestarikan dan dikembangkan. Diantaranya adalah seni, khususnya seni beladiri yaitu karate. Karate adalah seni beladiri yang sangat berkembang saat ini karena banyak diinati oleh masyarakat. Karate juga memiliki beberapa aliran salah satunya shtokan, sebagai aliran yang terbesar didunia. Shotokan ada...

  11. COACHES’ WORK EXPERIENCE AS AN INDICATOR OF MANAGEMENT ATTITUDES IN KARATE

    Directory of Open Access Journals (Sweden)

    Milan Nešić

    2008-08-01

    Full Text Available Sports in general, which, self-understandably, implies karate as well, be longs to that aspect of social improvement which focuses on satisfying individual and group needs, but those of a country too. Karate does not yield any material value, but it creates certain values important for the whole society which can be materialsed by other processes. Just like any other field of work, recruiting particular management personnel in karate is significant for indicating and positioning those needs that compel them to work in this very field. Therefore, one is certain: among the most significant factors that provoke activity are motives and attitudes. In today’s karate in Vojvodina particular managerial roles have not been well defined yet. The concept and strategy of a karate club as a basic organisational unit in sport is primarily based on knowledge, interests and motivation of a karate coach. Hence, there is a different motivational structure among those who are in karate.

  12. Choices enhance punching performance of competitive kickboxers.

    Science.gov (United States)

    Halperin, Israel; Chapman, Dale W; Martin, David T; Lewthwaite, Rebecca; Wulf, Gabriele

    2016-07-27

    While self-controlled practice has been shown to enhance motor learning with various populations and novel tasks, it remains unclear if such effects would be found with athletes completing familiar tasks. Study 1 used a single case-study design with a world-champion kickboxer. We investigated whether giving the athlete a choice over the order of punches would affect punching velocity and impact force. Separated by 1 min of rest, the athlete completed 2 rounds of 12 single, maximal effort punches (lead straight, rear straight, lead hook and rear hook) delivered to a punching integrator in a counterbalanced order over six testing days. In one round the punches were delivered in a predetermined order while in the second round the order was self-selected by the athlete. In the choice condition, the world champion punched with greater velocities (6-11 %) and impact forces (5-10 %). In Study 2, the same testing procedures were repeated with 13 amateur male kickboxers over 2 testing days. Similar to Study 1, the athletes punched with significantly greater velocities (6 %, p < 0.05) and normalised impact forces (2 %, p < 0.05) in the choice condition. These findings complement research on autonomy support in motor learning by demonstrating immediate advantages in force production and velocity with experienced athletes.

  13. [Injuries in Karate Sports: A Survey Performed During the World Championship 2014].

    Science.gov (United States)

    Tischer, T; Lembcke, B; Ellenrieder, M; Glass, Ä; Weigert, W; Mittelmeier, W

    2016-12-01

    Background: In literature, the competitive sport of modern karate is almost always characterised as a combat sport involving injuries caused by impact effects and physical contact with opponents. There is a lack of data regarding the outcome after karate injuries, specifically with a view to the contact-free Kata karate. Methods: Performing a random test using a questionnaire, we collected data concerning regular medical treatment, prior surgeries of the locomotor system, and medical care. This study included 300 athletes from 65 countries (average age: 24.1 years; 176 male, 124 female) participating in the Karate World Cup 2014. Seven participants competed in both disciplines, 87 only in the Kata discipline, and 206 only in Kumite (the discipline involving physical contact with opponents). The statistical analysis was performed using a two-sided Chi-square test and the Fisher's exact test. Results: Recurrent medical treatment was most commonly required for the knee region (Kata 28.7 %, Kumite 26.7 %). In Kata the shoulder region came second (22.9 %), in Kumite the ankle region (21.8 %), followed by hand and foot in both groups. Medical treatment of the elbow area was more frequent in the Kata Group (p = 0.033), while in Kumite athletes' hand (p = 0.002) and foot injuries (p = 0.007) prevailed. Prior surgeries of athletes of both disciplines most commonly concerned the knee, followed by the ankle region in the Kata group and by the hand and head region in the Kumite group. Statistically significant differences between the two disciplines were found in head injuries (p = 0.004), which commonly do not occur in the Kata discipline. During the World Cup, 56.0 % of the athletes had no individual medical care and 24.6 % received no sports-related medical care in their home countries. Conclusion: Although the risk of injuries in Kumite Karate has been reduced by the introduction of gumshields, hand and foot protectors as well as a reform of

  14. Repensando a história do karate contada no Brasil Rethinking the karate history spread in Brazil

    Directory of Open Access Journals (Sweden)

    Tiago Oviedo Frosi

    2011-06-01

    Full Text Available Este estudo aborda diversos aspectos presentes na literatura e que moldam o pensamento presente no imaginário dos brasileiros sobre a identidade, história e filosofia do Karate-Dō¹. O objetivo deste estudo é produzir uma meta análise da literatura circulante sobre a inserção e o desenvolvimento do Karate no Brasil, abordando seus diferentes estilos. Justifica-se este estudo pelo fato de considerarmos que foi difundida no Brasil uma versão distorcida sobre a história do Karate por meio da mídia, pela tradição oral e pelo preconceito entre os praticantes de diferentes estilos. As reflexões aqui apresentadas buscam contribuir com informações para a construção de outra versão sobre esta prática em nosso país.This study approaches several aspects of literature that shape the present thinking in the Brazilians imaginaries about the Karate-Dō identity, history and philosophy. The objective of this research is to produce a meta-analysis of the spread literature approaching is different styles. This study is justified by the fact of we consider that a distortion of Karate-Dō history was diffused in Brazil, by the media, oral tradition and preconception between some Karate-Dō styles practitioners. The reflections presented here seek contribute with information for another version's construction about this practice in Brazil.

  15. Yoshukai Karate: Curriculum Innovation for At-Risk Youths.

    Science.gov (United States)

    Berry, Judith L.

    The purpose of this experimental study was to determine the behavioral effects of Yoshukai karate on four dependent variables: (1) student behavior as related to classroom discipline; (2) teacher attitudes toward at-risk students; (3) students' self-concepts; and (4) academic achievement as determined by scores on a standardized diagnostic test.…

  16. Teaching with the Beginner's Mind: Notes from My Karate Journal.

    Science.gov (United States)

    Fontaine, Sheryl I.

    2002-01-01

    Reflects on what the author has learned about university teaching from her experience being a novice student of karate. Asserts the value for even seasoned teachers to maintain a beginner's mind that is "free of the habits of the expert, ready to accept, to doubt, and to open to all the possibilities." Concludes that from this new position, her…

  17. A simbologia presente nos estilos de Karate-Dō

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    Brandel José Pacheco LOPES FILHO

    2015-09-01

    Full Text Available ResumoO objetivo deste estudo é interpretar os diferentes significados existentes nos emblemas/símbolos de estilos e escolas de Karate-Dō, analisando seus elementos internos e sua importância dentro dessa prática. Para sua realização, foram realizadas três etapas distintas: 1 catalogação e investigação dos estilos e escolas de Karate-Dō com maior representatividade histórica, cultural e política; 2 identificação dos símbolos utilizados por cada um desses estilos e escolas; e 3 análise de cada um desses símbolos. Essa análise torna-se importante para uma compreensão mais profunda dos diferentes significados envolvidos na prática do Karate-Dō, pois, apesar de seguirem um conjunto de valores comum a todos os Budō, as escolas possuem sua própria visão de mundo, utilizando seus símbolos para reforçar ou externar tais conceitos. A maior parte dos símbolos analisados demonstra um aprofundamento cultural em seus grafismos, sendo reconhecidos alguns elementos até de aspecto espiritual ou religioso. Esse simbolismo, em si, mostra um aspecto relevante para a compreensão do próprio fenômeno multicultural nomeado Karate-Dō.

  18. Teaching with the Beginner's Mind: Notes from My Karate Journal.

    Science.gov (United States)

    Fontaine, Sheryl I.

    2002-01-01

    Reflects on what the author has learned about university teaching from her experience being a novice student of karate. Asserts the value for even seasoned teachers to maintain a beginner's mind that is "free of the habits of the expert, ready to accept, to doubt, and to open to all the possibilities." Concludes that from this new…

  19. Yoshukai Karate: Curriculum Innovation for At-Risk Youths.

    Science.gov (United States)

    Berry, Judith L.

    The purpose of this experimental study was to determine the behavioral effects of Yoshukai karate on four dependent variables: (1) student behavior as related to classroom discipline; (2) teacher attitudes toward at-risk students; (3) students' self-concepts; and (4) academic achievement as determined by scores on a standardized diagnostic test.…

  20. The effects of one-week training camp on motor skills in Karate kids.

    Science.gov (United States)

    Padulo, J; Chamari, K; Chaabène, H; Ruscello, B; Maurino, L; Sylos Labini, P; Migliaccio, G M

    2014-12-01

    The purpose of this study was to evaluate the effects of short-term increased hours of specific high-intensity karate training on motor skills in young karate athletes aged between 8 and 12 years. Seventy-three children, who regularly trained three karate sessions per-week were divided in two groups: high-intensity karate group (HG=53) and low-intensity karate group (LG=20). HG trained for 7 days: with two sessions per-day (one hour per-session) including specific karate techniques as well as coordination, balance, and flexibility exercises. LG, however, followed the same number of karate training sessions as before the beginning of the study (i.e., three sessions per-week with one hour per-session). Participants performed a battery of tests, 24 hours pre- and one week post-training: a medicine ball throw (MBT), standing long jump (SLJ), active joint flexibility (JM) and lateral/frontal jumps (JLT). Significant differences between results of pre and post karate training (ANOVA with repeated measures) included: MBT (Pkarate fitness component. In this regard, short term high-intensity karate training represents an effective method for enhancing muscular power and range of motion (i.e. flexibility) in young karate athletes aged between 8 and 12 years. Further studies are needed to support these findings with deeper data.

  1. Problem of punching shear in slabs on culumns

    OpenAIRE

    Bartol, Jože

    2007-01-01

    Existing technical solutions enabling sufficient punching resistance failure of flot slabs were analyzed. The reasons that ultimately lead to punching shear and the consequences of shear punching were examined as well. The main causes of punching shear are the condensed shear stresses in the part of the slab that is in contact with the columns. Symbols used at punching shear and an overlook of elements with appropriate reinforcement calculation were presented. The control exten...

  2. Low risk of concussions in top-level karate competition.

    Science.gov (United States)

    Arriaza, Rafael; Cierna, Dusana; Regueiro, Patricia; Inman, David; Roman, Franco; Abarca, Benjamin; Barrientos, Mercé; Saavedra, Miguel A

    2017-02-01

    Although it is well known that injuries occur in combat sports, the true incidence of concussions is not clearly defined in the literature for karate competition. To determine the incidence of concussions in top-level (World Karate Federation World Championships) karate competition. Injuries that took place in 4 consecutive World Karate Championships (from 2008 to 2014) were prospectively registered. A total of 4625 fights (2916 in the male category and 1709 in the female category) were scrutinised, and concussions were identified and analysed separately for frequency (rate per fight) and injury risk. A total of 4 concussions were diagnosed by the attending physicians after carrying out athlete examinations. Globally, there was 1 concussion in every 1156 fights, or 0.43/1000 athlete-exposures (AE). In male athletes, the rate of concussion was 1/5832 min of fighting, and in female athletes, it was 1/6836 min. OR for concussion in women is 0.57 (95% CI 0.06 to 5.47; z=0.489; p=0.6249) and risk ratio for concussions in men is RR 1.478 (95% CI 0.271 to 8.072), p=0.528, representing a higher risk of definite concussions in men than in women, but not statistically significant. There is not a significantly higher risk of concussions in team competition (no weight limit) when compared with individual competition (held with strict weight limits for each category). The risk of concussions in top-level karate competition is low, with a tendency for an increased risk for men and for competition without weight limits, but not statistically significant with respect to women or individual competition. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/.

  3. Effect of the techniques of karate on functional status and physical fitness of students of Flight Academy

    Directory of Open Access Journals (Sweden)

    Volodymir Galimskyi

    2015-02-01

    Full Text Available Purpose: to investigate the effect of the application of the techniques of karate on functional status and physical fitness of students of Flight Academy first year. Material and Methods: the study involved students of Flight Academy EG (pilots, n=25 and CG (rescuers, n=23. We determined the effect of the techniques of karate in physical fitness, running the 100 meters, bending and unbending hands ups, pull-ups on the bar, running 3,000 meters, 10 revolutions per gymnastic wheel; on functional status, body length, body weight, heart rate at rest, vital capacity, vital index (ml•kg–1 sample and test Stange and Ghencea. Results: revealed that the use of uniform and alternating load of running helped improve the outcome for 3000 m run and function of the respiratory system. Anaerobic subject to the techniques of karate contributed to increasing resistance to hypoxia. Conclusions: this study suggests the need to improve physical fitness of students by implementing motor activity of certain sports.

  4. Indicators technology competitive activities of varying skill karate style «kyokushin»

    Directory of Open Access Journals (Sweden)

    Natalya Boychenko

    2014-10-01

    Full Text Available Purpose: to identify the main indicators of the art of competitive activity karate different qualifications style «kyokushin» and identify their differences. Material and Methods: analysis of video recordings of highly competitive activity karate; teacher observations; methods of mathematical statistics. Results: based on the analysis of video recordings of competitive activity created a model of technical preparedness karate qualifications. The differences in the technique of competitive activity karate different qualifications. Conclusions: it was found a series of karate techniques with different skills, their frequency of use and effectiveness. Confirmed that in the competitive fight karate qualifications dominated series techniques. It is found that the technique of competitive activity highly skilled athletes is very varied combinations strikes in series of two or three strikes and more.

  5. DEVELOPMENT OF A SPORTS SPECIFIC AEROBIC CAPACITY TEST FOR KARATE - A PILOT STUDY

    OpenAIRE

    2006-01-01

    The purpose of the study was to develop an aerobic fitness assessment test for competitive Karate practitioners and describe the preliminary findings. Five well-trained, competitive Karate practitioners participated in this study. A protocol simulating common attack strikes used in competition Karate sparring was developed from video analysis. In addition, pilot testing established a specific sequence of strikes and timings to be used in the test. The time to perform the strike sequence remai...

  6. An 18-month Follow-up of Anger in Female Karate Athletes

    OpenAIRE

    Vahid Ziaee; Sara Lotfian; Amir Hossein Memari

    2013-01-01

    Objective The aim of this study was to evaluate changes of anger scores in female karate athletes during 18 months, and to compare anger scores in adolescents who continue or stop training karate. Method The sample consisted of 18 female elite karate athletes, practicing modern style of karate. To measure anger and its subscales, participants were asked to complete “Adolescent Anger Rating Scale” (AARS) questionnaire in both stages of the study. Athletes were divided in to two groups of “stay...

  7. CONNECTION OF EXPLOSIVE POWER WITH TOP-CLASS RESULTS IN KARATE

    Directory of Open Access Journals (Sweden)

    Dragan Dode

    2007-05-01

    Full Text Available On the basis of obtained results, we could assume that the level of explosive leg power infl uences on achieving top-class results in karate. A champion model (Stojadinov: shows that karate demands higher values of maximum jump, optimal energetic consumption and output, while it is achieved a maximum use of high values. It could be concluded that explosive leg power infl uences signifi cantly on achieving top-class sports results and it could infl uence notably on motion and technique choice which a competitor uses most frequently. It is obvious that without high level of explosive leg power there are no top-class results in karate, what indicates some former researches in karate. On the basis of former researches (Zulic 1987, 1989, Doder and collaborators 1998, 2000, 2001, 2003, 2005 top-class karate players (seniors and pioneers with higher explosive leg power showed better results in accomplishing of karate technique. That means that harmonic power canon of a mentioned sample of our best karate players in struggles as well as a model of our best karate players on European and World Championships could be considered as a universal model of a relation between dynamometric power of some muscular groups, which by suitable assumptions and other factors from an equation of a success specifi cation in this sport, provides the best condition for achieving maximum values in karate battles.

  8. Autologous mini punch grafting: An experience of using motorized power punch in 10 patients

    Directory of Open Access Journals (Sweden)

    B S Chandrashekar

    2014-01-01

    Full Text Available Background: Autologous mini punch grafting (MPG is a safe, effective and easy technique that can be performed on any site with minimal side effects and good cosmetic results. Large areas of stable generalised vitiligo require more grafts and are time consuming. Hence multiple sessions of surgery need to be scheduled. We share our experience of using motorised power punches to increase the speed of surgery in large areas of stable vitiligo in 10 patients. Materials and Methods: Ten patients in the age group of 12-55 years were treated with miniature punch grafting using power punches in single session on various sites. The power punches of 1-1.5 mm diameter were used to score donor and recipient sites, either of same or less than 0.2-0.3 mm size punches. The harvested grafts from donor site were then secured in the recipient beds and dressed. Results: The average number of grafts harvested per session was 125-185, the duration of surgery ranged from 45 to 90 minutes. Perigraft pigment spread was seen at 3 weeks. Complete repigmentation was observed in 3-4 months in eight patients. Cobble stoning was observed in one patient, and all donor sites healed well with superficial scarring. Conclusion: We conclude that autologous MPG with motorised power punches for stable vitiligo, especially on large areas including difficult sites can be performed with ease in comparatively lesser time in a single session, greatly benefiting the patients.

  9. Pilot Experimental Tests on Punching Shear Strength of Flat Plates Reinforced with Stirrups Punching Shear Reinforcement

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    Mohamed Hassan

    2017-03-01

    Full Text Available Flat plates are favor structure systems usually used in parking garages and high-rise buildings due to its simplicity for construction. However, flat plates have some inherent structural problems, due to high shear stress surrounding the supporting columns which cause a catastrophic brittle type of failure called "Punching Shear Failure". Several solutions are used to avoid punching shear failure, including the use of drop panels or punching shear reinforcement. The latter is being a more sophisticated solution from the structural ductility, the architectural and the economical point of view. This study aims at investigating the effect of stirrups as shear reinforcement in enhancing the punching strength of interior slab-column connections. A total of four full-scale interior slab-column connections were tested up to failure. All slabs had a side length of 1700 mm and 160 mm thickness with 200 mm x 200 mm square column. The test parameters were the presence of shear reinforcement and stirrups concentration around the supporting column. The test results showed that the distribution of stirrups over the critical punching shear zone was an efficient solution to enhance not only the punching shear capacity but also the ductility of the connection. Furthermore, the concentrating of stirrups shear reinforcement in the vicinity of the column for the tested slabs increases the punching shear capacity by 13 % compared to the uniform distribution at same amount of shear reinforcement.

  10. Management implementation of the Czech Karate Federation JKA

    OpenAIRE

    Válková, Zuzana

    2012-01-01

    Title: Management Implementation of the Czech Karate Federation JKA Goals: The general aim is to give suggestions for management improvement of sports non-profit organization. The suggestions will be based on an analysis of sequential managerial functions - planning, organizing, selecting and deploying staff, leadership and control and some continuous functions. Methods: Descriptive analysis, Unstructured interview, SWOT analysis Results: The results of the bachelor thesis are proposed change...

  11. Criterion Related Validity of Karate Specific Aerobic Test (KSAT)

    Science.gov (United States)

    Chaabene, Helmi; Hachana, Younes; Franchini, Emerson; Tabben, Montassar; Mkaouer, Bessem; Negra, Yassine; Hammami, Mehrez; Chamari, Karim

    2015-01-01

    Background: Karate is one the most popular combat sports in the world. Physical fitness assessment on a regular manner is important for monitoring the effectiveness of the training program and the readiness of karatekas to compete. Objectives: The aim of this research was to examine the criterion related to validity of the karate specific aerobic test (KSAT) as an indicator of aerobic level of karate practitioners. Patients and Methods: Cardiorespiratory responses, aerobic performance level through both treadmill laboratory test and YoYo intermittent recovery test level 1 (YoYoIRTL1) as well as time to exhaustion in the KSAT test (TE’KSAT) were determined in a total of fifteen healthy international karatekas (i.e. karate practitioners) (means ± SD: age: 22.2 ± 4.3 years; height: 176.4 ± 7.5 cm; body mass: 70.3 ± 9.7 kg and body fat: 13.2 ± 6%). Results: Peak heart rate obtained from KSAT represented ~99% of maximal heart rate registered during the treadmill test showing that KSAT imposes high physiological demands. There was no significant correlation between KSAT’s TE and relative (mL/min kg) treadmill maximal oxygen uptake (r = 0.14; P = 0.69; [small]). On the other hand, there was a significant relationship between KSAT’s TE and the velocity associated with VO2max (vVO2max) (r = 0.67; P = 0.03; [large]) as well as the velocity at VO2 corresponding to the second ventilatory threshold (vVO2 VAT) (r = 0.64; P = 0.04; [large]). Moreover, significant relationship was found between TE’s KSAT and both the total distance covered and parameters of intermittent endurance measured through YoYoIRTL1. Conclusions: The KSAT has not proved to have indirect criterion related validity as no significant correlations have been found between TE’s KSAT and treadmill VO2max. Nevertheless, as correlated to other aerobic fitness variables, KSAT can be considered as an indicator of karate specific endurance. The establishment of the criterion related validity of the KSAT

  12. Criterion Related Validity of Karate Specific Aerobic Test (KSAT

    Directory of Open Access Journals (Sweden)

    Chaabene

    2015-09-01

    Full Text Available Background Karate is one the most popular combat sports in the world. Physical fitness assessment on a regular manner is important for monitoring the effectiveness of the training program and the readiness of karatekas to compete. Objectives The aim of this research was to examine the criterion related to validity of the karate specific aerobic test (KSAT as an indicator of aerobic level of karate practitioners. Patients and Methods Cardiorespiratory responses, aerobic performance level through both treadmill laboratory test and YoYo intermittent recovery test level 1 (YoYoIRTL1 as well as time to exhaustion in the KSAT test (TE’KSAT were determined in a total of fifteen healthy international karatekas (i.e. karate practitioners (means ± SD: age: 22.2 ± 4.3 years; height: 176.4 ± 7.5 cm; body mass: 70.3 ± 9.7 kg and body fat: 13.2 ± 6%. Results Peak heart rate obtained from KSAT represented ~99% of maximal heart rate registered during the treadmill test showing that KSAT imposes high physiological demands. There was no significant correlation between KSAT’s TE and relative (mL/min kg treadmill maximal oxygen uptake (r = 0.14; P = 0.69; [small]. On the other hand, there was a significant relationship between KSAT’s TE and the velocity associated with VO2max (vVO2max (r = 0.67; P = 0.03; [large] as well as the velocity at VO2 corresponding to the second ventilatory threshold (vVO2 VAT (r = 0.64; P = 0.04; [large]. Moreover, significant relationship was found between TE’s KSAT and both the total distance covered and parameters of intermittent endurance measured through YoYoIRTL1. Conclusions The KSAT has not proved to have indirect criterion related validity as no significant correlations have been found between TE’s KSAT and treadmill VO2max. Nevertheless, as correlated to other aerobic fitness variables, KSAT can be considered as an indicator of karate specific endurance. The establishment of the criterion related validity of the

  13. Lubricant test for punching and blanking

    DEFF Research Database (Denmark)

    Olsson, David Dam; Bay, Niels; Andreasen, Jan Lasson

    2003-01-01

    di $cult work piece materials like stainless steels.For this group of materials few alternatives exist as regards appropriate lubricants and many companies apply the environmentally hazardous chlorinated para $n oils in order to insure a uccessful production.In connection with development...... of alternative lubricants the present paper describes a new lubricant test for punching....

  14. THE INFLUENCE OF KARATE PRACTICE LEVEL AND SEX ON PHYSIOLOGICAL AND PERCEPTUAL RESPONSES IN THREE MODERN KARATE TRAINING MODALITIES

    Science.gov (United States)

    Chaabène, H.; Franchini, E.; Tourny, C.; Chamari, K.; Coquart, J.

    2014-01-01

    Objective The aim of the present study was to examine the influence of karate practice level (national vs international level) and sex (women vs men) on physiological and perceptual responses in three modern karate training modalities (tactical-technical (TT), technical-development (TD), and randori). Method The study included 18 karatekas participating in an eight-session training camp of four TT, two TD, and two randori. During each session, the percentage of maximal heart rate (HR), blood lactate concentration [La-], and rating of perceived exertion (RPE) were assessed. Results The main results showed that the percentage of maximal HR was significantly higher in women than in men regardless of practice level or training modality (70.3 ± 4.1 vs 66.2 ± 6.3, respectively). Moreover, [La-] and RPE were significantly lower in international-level karatekas compared with their national-level counterparts whatever the sex or training modality ([La-] = 11.4 ± 2.6 vs 8.3 ± 2.4 mmol · L-1 and RPE = 3.6 ± 1.2 vs 4.3 ± 1.5, respectively). Last, physiological and perceptual responses were significantly higher during randori in comparison with TT and TD for both sexes. Conclusion The combination of [La-] and RPE thus seems to be a good indicator for discriminating between national- and international-level karatekas, and randori seems to be an effective means to reproduce official karate sparring. PMID:25177098

  15. THE INFLUENCE OF KARATE PRACTICE LEVEL AND SEX ON PHYSIOLOGICAL AND PERCEPTUAL RESPONSES IN THREE MODERN KARATE TRAINING MODALITIES

    Directory of Open Access Journals (Sweden)

    M. Tabben

    2014-08-01

    Full Text Available Objective: The aim of the present study was to examine the influence of karate practice level (national vs international level and sex (women vs men on physiological and perceptual responses in three modern karate training modalities (tactical-technical (TT, technical-development (TD, and randori. Method: The study included 18 karatekas participating in an eight-session training camp of four TT, two TD, and two randori. During each session, the percentage of maximal heart rate (HR, blood lactate concentration [La-], and rating of perceived exertion (RPE were assessed. Results: The main results showed that the percentage of maximal HR was significantly higher in women than in men regardless of practice level or training modality (70.3 ± 4.1 vs 66.2 ± 6.3, respectively. Moreover, [La-] and RPE were significantly lower in international-level karatekas compared with their national-level counterparts whatever the sex or training modality ([La-] = 11.4 ± 2.6 vs 8.3 ± 2.4 mmol · L-1 and RPE = 3.6 ± 1.2 vs 4.3 ± 1.5, respectively. Last, physiological and perceptual responses were significantly higher during randori in comparison with TT and TD for both sexes. Conclusion: The combination of [La-] and RPE thus seems to be a good indicator for discriminating between national- and international-level karatekas, and randori seems to be an effective means to reproduce official karate sparring.

  16. Evaluation of selected postural parameters in children who practice kyokushin karate

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    Drzał-Grabiec Justyna

    2014-10-01

    Full Text Available Study aim: martial arts can be traced back thousands of years. Karate is one of the most common martial arts, and both children and adults practice it. The aim of the study was to evaluate selected body posture parameters in children aged 7–10 years who regularly practice karate.

  17. The impact of specific motoricity on karate performance in young karateka.

    Science.gov (United States)

    Katić, Ratko; Jukić, Jozefina; Glavan, Ivan; Ivanisević, Snjezana; Gudelj, Ines

    2009-03-01

    The aim of the study was to assess interdependence of specific motor abilities (situation karate tests) and motor skills (karate techniques), and karate performance (fighting efficiency) in under-sixteen male karateka aged 11-12 and 13-14 years. A battery of 5 situation motor tests were applied and 6 basic elements of karate technique evaluated in a sample of 20 male karateka aged 11-12 and 20 male karateka aged 13-14 years. Three criterion variables were formed: 1) one factor as a factor of general technical efficiency in karate was isolated by factor analysis of 6 karate techniques; 2) cumulative evaluation of 2 kate as kate performance; and 3) total score assessment based on success achieved at national karate championships as contest efficiency (fighting efficiency). Regression analysis revealed the frequency of gedan barai blockade performance to be the superior predictor of technical efficiency, kate performance and contest success in karateka aged 11-12, whereas the speed of the gedan barai-jaku zuki (block-kick) combination performance and specific agility (sidewise mobility) were superior predictors of performance in karateka aged 13-14. Of the karate techniques (kicks) used, the quality of jaku zuki kick performance was the superior predictor of contest efficiency in karateka aged 11-12, and the quality of the jaku zuki-mawashi geri and kizame zuki-jaku zuki combination performance in karateka aged 13-14.

  18. Morphological, motor and technical determinants of fighting efficiency of Croatian female cadet age karate athletes.

    Science.gov (United States)

    Jukić, Josefina; Katić, Ratko; Bala, Gustav

    2013-12-01

    The aim of this research was to determine the significance of morphological factors, factors of basic motor and specific motor abilities, and the factors of technical efficiency, on the karate fight success in Croatian female cadet karate athletes. With this purpose, the group of 18 anthropometric measures, 10 basic motor tests, 5 situational karate motor tests, the group of 8 evaluations of 6 basic karate techniques, and 2 karate kata performances was applied on the sample of 101 Croatian karateka aged 14 to 16. Inside the morphological area, the factor analysis isolated: Body mass and volume factor, Subcutaneous fat tissue factor, Longitudinal skeleton dimensionality factor, and Transversal fist dimensionality factor; in the basic motor area: General motor efficiency factor; in the situational motor area: General specific motor efficiency factor; in the area of karate technique performance evaluation: General technical efficiency factor. After that, the application of canonical discriminative analysis determined the differences between high and lower quality karate athletes in the overall area of the isolated factors. The discriminative function showed that high quality female karate athletes compared to those of lower quality differ the most in higher technical efficiency, higher basic and specific motor efficiency, while having somewhat less fat tissue and somewhat wider wrist and fist diameter.

  19. The Effect of Karate Techniques Training on Communication Deficit of Children with Autism Spectrum Disorders

    Science.gov (United States)

    Bahrami, Fatimah; Movahedi, Ahmadreza; Marandi, Sayed Mohammad; Sorensen, Carl

    2016-01-01

    This investigation examined the long term effect of Karate techniques training on communication of children with autism spectrum disorders (ASD). Thirty school aged children with ASD were randomly assigned to an exercise (n = 15) or a control group (n = 15). Participants in the exercise group were engaged in 14 weeks of Karate techniques training.…

  20. Suur ego raskendab karateässal Marko Luhamaal pere loomist / Andres Kalvik

    Index Scriptorium Estoniae

    Kalvik, Andres, 1982-

    2007-01-01

    Vt. Postimees : na russkom jazõke 9. mai, lk. 13. Eesti parim karateka Luhamaa teinuks oma sõnul vaid raha lugedes tippspordiga ammu lõpparve. Karate maailmameister on tippu rühkinud tasapisi ja üksinda. Kommenteerib Eesti Karate Föderatsiooni peasekretär Jüri Põld

  1. The Effect of Karate Techniques Training on Communication Deficit of Children with Autism Spectrum Disorders

    Science.gov (United States)

    Bahrami, Fatimah; Movahedi, Ahmadreza; Marandi, Sayed Mohammad; Sorensen, Carl

    2016-01-01

    This investigation examined the long term effect of Karate techniques training on communication of children with autism spectrum disorders (ASD). Thirty school aged children with ASD were randomly assigned to an exercise (n = 15) or a control group (n = 15). Participants in the exercise group were engaged in 14 weeks of Karate techniques training.…

  2. Suur ego raskendab karateässal Marko Luhamaal pere loomist / Andres Kalvik

    Index Scriptorium Estoniae

    Kalvik, Andres, 1982-

    2007-01-01

    Vt. Postimees : na russkom jazõke 9. mai, lk. 13. Eesti parim karateka Luhamaa teinuks oma sõnul vaid raha lugedes tippspordiga ammu lõpparve. Karate maailmameister on tippu rühkinud tasapisi ja üksinda. Kommenteerib Eesti Karate Föderatsiooni peasekretär Jüri Põld

  3. Using virtual humans and computer animations to learn complex motor skills: a case study in karate

    Directory of Open Access Journals (Sweden)

    Spanlang Bernhard

    2011-12-01

    Full Text Available Learning motor skills is a complex task involving a lot of cognitive issues. One of the main issues consists in retrieving the relevant information from the learning environment. In a traditional learning situation, a teacher gives oral explanations and performs actions to provide the learner with visual examples. Using virtual reality (VR as a tool for learning motor tasks is promising. However, it raises questions about the type of information this kind of environments can offer. In this paper, we propose to analyze the impact of virtual humans on the perception of the learners. As a case study, we propose to apply this research problem to karate gestures. The results of this study show no significant difference on the after training performance of learners confronted to three different learning environments (traditional group, video and VR.

  4. Model technical and tactical training karate «game» manner of conducting a duel

    Directory of Open Access Journals (Sweden)

    Natalya Boychenko

    2015-04-01

    Full Text Available Purpose: optimization of technical and tactical training karate «gaming» the manner of conducting a duel. Material and Methods: analysis and compilation of scientific and methodological literature, interviews with coaches for shock combat sports, video analysis techniques, teacher observations. Results: the model of technical and tactical training karate «game» manner of conducting a duel. Selection was done complexes jobs matching techniques to improve athletes 'game' in the manner of conducting a duel «Kyokushin» karate. Conclusion: the model of technical and tactical training fighters "game" manner of conducting a duel, which reveals the particular combination technique karate style «Kyokushin». Selection was done complexes jobs matching techniques to improve athletes 'game' in the manner of conducting a duel «Kyokushin» karate, aimed at improving the combinations with the action on the response of the enemy.

  5. Primary Motor Cortex Excitability in Karate Athletes: A Transcranial Magnetic Stimulation Study

    Directory of Open Access Journals (Sweden)

    Vincenzo Monda

    2017-09-01

    Full Text Available Purpose: The mechanisms involved in the coordination of muscle activity are not completely known: to investigate adaptive changes in human motor cortex Transcranial magnetic stimulation (TMS was often used. The sport models are frequently used to study how the training may affect the corticospinal system excitability: Karate represents a valuable sport model for this kind of investigations for its high levels of coordination required to athletes. This study was aimed at examining possible changes in the resting motor threshold (rMT and in the corticospinal response in karate athletes, and at determining whether athletes are characterized by a specific value of rMT.Methods: We recruited 25 right-handed young karate athletes and 25 matched non-athletes. TMS was applied to primary motor cortex (M1. Motor evoked potential (MEP were recorded by two electrodes placed above the first dorsal interosseous (FDI muscle. We considered MEP latencies and amplitudes at rMT, 110% of rMT, and 120% of rMT.Results: The two groups were similar for age (p > 0.05, height (p > 0.05 and body mass (p > 0.05. The TMS had a 70-mm figure-of-eight coil and a maximum output of 2.2 T, placed over the left motor cortex. During the stimulation, a mechanical arm kept the coil tangential to the scalp, with the handle at 45° respect to the midline. The SofTaxic navigator system (E.M.S. Italy, www.emsmedical.net was used in order to correctly identifying and repeating the stimulation for every subject. Compared to non-athletes, athletes showed a lower resting motor threshold (p < 0.001. Furthermore, athletes had a lower MEP latency (p < 0.001 and a higher MEP amplitude (p < 0.001 compared to non-athletes. Moreover, a ROC curve for rMT was found significant (area: 0.907; sensitivity 84%, specificity 76%.Conclusions: As the main finding, the present study showed significant differences in cortical excitability between athletes and non-athletes. The training can improve cortical

  6. Novel uses of skin biopsy punches in dermatosurgery

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    Deepak S Hurkudli

    2015-01-01

    Full Text Available The skin punch or surgical punch is an instrument which is used almost exclusively by dermatologists. It is a circular hollow blade attached to a pencil-like handle ranging in size from 0.5 to 10 mm. It is available as a disposable, reusable, and automated instrument. The punch can be used as a diagnostic, therapeutic, and cosmetic tool in dermatology. We have used punch as a diagnostic, therapeutic, and cosmetic tool in our dermatosurgery practice in our hospital. Various original research articles, text book publications, and review articles were studied and compiled. Techniques used by various authors and our own experiences with punch have been described. This article aims at providing the novel usefulness of skin biopsy punch in dermatology as the basic punch surgery is quick and easy to learn. Complications such as bleeding and infection are minimal.

  7. Small punch creep test in a 316 austenitic stainless steel

    Directory of Open Access Journals (Sweden)

    Saucedo-Muñoz, Maribel L.

    2015-03-01

    Full Text Available The small punch creep test was applied to evaluate the creep behavior of a 316 type austenitic stainless steel at temperatures of 650, 675 and 700 °C. The small punch test was carried out using a creep tester with a specimen size of 10×10×0.3 mm at 650, 675 and 700 °C using loads from 199 to 512 N. The small punch creep curves show the three stages found in the creep curves of the conventional uniaxial test. The conventional creep relationships which involve parameters such as creep rate, stress, time to rupture and temperature were followed with the corresponding parameters of small punch creep test and they permitted to explain the creep behavior in this steel. The mechanism and activation energy of the deformation process were the grain boundary sliding and diffusion, respectively, during creep which caused the intergranular fracture in the tested specimens.El ensayo de termofluencia por indentación se utilizó para evaluar el comportamiento a la termofluencia en un acero inoxidable austenítico 316. Este ensayo se realizó en una máquina de indentación con muestras de 10×10×0,3 mm a temperaturas de 650, 675 y 700 °C con cargas de 199 a 512 N. Las curvas de termofluencia del ensayo mostraron las tres etapas características observadas en el ensayo convencional de tensión. Asimismo, las principales relaciones de termofluencia entre parámetros como velocidad de termofluencia, esfuerzo, tiempo de ruptura y temperatura se observaron en los parámetros correspondientes al ensayo de indentación, lo que permitió caracterizar el comportamiento de termofluencia en este acero. El mecanismo y la energía de activación del proceso de deformación en la termofluencia corresponden al deslizamiento de los límites de grano y la difusión a través de los mismos, respectivamente, lo cual causó la fractura intergranular en las muestras ensayadas.

  8. Physiological and Perceived Exertion Responses during International Karate Kumite Competition

    Science.gov (United States)

    Tabben, Montassar; Sioud, Rim; Haddad, Monoem; Franchini, Emerson; Chaouachi, Anis; Coquart, Jeremy; Chaabane, Helmi; Chamari, Karim; Tourny-Chollet, Claire

    2013-01-01

    Purpose Investigate the physiological responses and rating of perceived exertion (RPE) in elite karate athletes and examine the relationship between a subjective method (Session-RPE) and two objective heart-rate (HR)-based methods to quantify training-load (TL) during international karate competition. Methods Eleven karatekas took part in this study, but only data from seven athletes who completed three matches in an international tournament were used (four men and three women). The duration of combat was 3 min for men and 2 min for women, with 33.6±7.6 min for the first interval period (match 1–2) and 14.5±3.1 min for the second interval period (match 2–3). HR was continuously recorded during each combat. Blood lactate [La-] and (RPE) were measured just before the first match and immediately after each match. Results Means total fights time, HR, %HRmax, [La-], and session-RPE were 4.7±1.6 min, 182±9 bpm, 91±3%, 9.02±2.12 mmol.L-1 and 4.2±1.2, respectively. No significant differences in %HRmax, [La-], and RPE were noticed across combats. Significant correlations were observed between RPE and both resting HR (r=0.60; P=0.004) and mean HR (r=0.64; P=0.02), session-RPE and Banister training-impulse (TRIMP) (r=0.84; Pkarate competition elicited near-maximal cardiovascular responses and high [La-]. Training should therefore include exercise bouts that sufficiently stimulate the zone between 90 and 100% HRmax. Karate coaches could use the RPE-method to follow competitor's competition loads and consider it in their technical and tactical training. PMID:24800001

  9. Targeted cryotherapy using disposable biopsy punches

    Directory of Open Access Journals (Sweden)

    Avitus John Raakesh Prasad

    2014-01-01

    Full Text Available Cryotherapy is a commonly used office procedure that causes destruction of tissue by cryonecrosis due to rapid freezing and thawing of cells. The limitation in treating plantar warts and deeper dermal lesions is that the freeze time should be longer to penetrate deeper, which results in collateral damage to normal skin surrounding the lesion. This results in unwanted side effects of prolonged pain, blistering and haemorrhage and increased healing time. The cone spray technique was used to reduce collateral damage, but deeper penetration is difficult to achieve. An innovative technique using disposable biopsy punches is described that ensures deeper freezing as compared to the plastic cone. The metal cutting edge of the punch enters deeper into the lesions as the liquid nitrogen is passed, sparing damage to surrounding skin.

  10. Targeted Cryotherapy Using Disposable Biopsy Punches

    Science.gov (United States)

    Prasad, Avitus John Raakesh

    2014-01-01

    Cryotherapy is a commonly used office procedure that causes destruction of tissue by cryonecrosis due to rapid freezing and thawing of cells. The limitation in treating plantar warts and deeper dermal lesions is that the freeze time should be longer to penetrate deeper, which results in collateral damage to normal skin surrounding the lesion. This results in unwanted side effects of prolonged pain, blistering and haemorrhage and increased healing time. The cone spray technique was used to reduce collateral damage, but deeper penetration is difficult to achieve. An innovative technique using disposable biopsy punches is described that ensures deeper freezing as compared to the plastic cone. The metal cutting edge of the punch enters deeper into the lesions as the liquid nitrogen is passed, sparing damage to surrounding skin. PMID:25136216

  11. Damage modeling in Small Punch Test specimens

    DEFF Research Database (Denmark)

    Martínez Pañeda, Emilio; Cuesta, I.I.; Peñuelas, I.

    2016-01-01

    Ductile damage modeling within the Small Punch Test (SPT) is extensively investigated. The capabilities ofthe SPT to reliably estimate fracture and damage properties are thoroughly discussed and emphasis isplaced on the use of notched specimens. First, different notch profiles are analyzed...... and constraint conditionsquantified. The role of the notch shape is comprehensively examined from both triaxiality and notchfabrication perspectives. Afterwards, a methodology is presented to extract the micromechanical-basedductile damage parameters from the load-displacement curve of notched SPT samples...

  12. An 18-month Follow-up of Anger in Female Karate Athletes

    Directory of Open Access Journals (Sweden)

    Vahid Ziaee

    2013-06-01

    Full Text Available Objective:The aim of this study was to evaluate changes of anger scores in female karate athletes during 18 months, and to compare anger scores in adolescents who continue or stop training karate.Method:The sample consisted of 18 female elite karate athletes, practicing modern style of karate. To measure anger and its subscales, participants were asked to complete “Adolescent Anger Rating Scale” (AARS questionnaire in both stages of the study. Athletes were divided in to two groups of “stayer” (n=12 and “quitter” (n=6 if they continued practicing karate or stopped it, respectively. In order to study the changes of anger score with time, paired T test was used.Results:In analysis of changes in anger scores with time, there was a statistically significant increase in instrumental anger (p=0.001 and non-significant increase in other anger scores among 14-year-old girls who continued practicing karate.Conclusion :Increased instrumental anger in female karate athletes could be due to the impact of participation in a combative sport. However, the results should be interpreted cautiously due to limitations of the study.

  13. An 18-month Follow-up of Anger in Female Karate Athletes.

    Science.gov (United States)

    Ziaee, Vahid; Lotfian, Sara; Memari, Amir Hossein

    2013-06-01

    The aim of this study was to evaluate changes of anger scores in female karate athletes during 18 months, and to compare anger scores in adolescents who continue or stop training karate. The sample consisted of 18 female elite karate athletes, practicing modern style of karate. To measure anger and its subscales, participants were asked to complete "Adolescent Anger Rating Scale" (AARS) questionnaire in both stages of the study. Athletes were divided in to two groups of "stayer" (n=12) and "quitter" (n=6) if they continued practicing karate or stopped it, respectively. In order to study the changes of anger score with time, paired T test was used. In analysis of changes in anger scores with time, there was a statistically significant increase in instrumental anger (p=0.001) and non-significant increase in other anger scores among 14-year-old girls who continued practicing karate. Increased instrumental anger in female karate athletes could be due to the impact of participation in a combative sport. However, the results should be interpreted cautiously due to limitations of the study.

  14. Kashima RAy-Tracing Service (KARATS) for high accurate GNSS positioning

    Science.gov (United States)

    Ichikawa, R.; Hobiger, T.; Hasegawa, S.; Tsutsumi, M.; Koyama, Y.; Kondo, T.

    2010-12-01

    Radio signal delays associated with the neutral atmosphere are one of the major error sources of space geodesy such as GPS, GLONASS, GALILEO, VLBI, In-SAR measurements. We have developed a state-of-art tool to estimate the atmospheric path delays by ray-tracing through JMA meso-scale analysis (MANAL data) data. The tools, which we have named 'KAshima RAytracing Tools (KARAT)', are capable of calculating total slant delays and ray-bending angles considering real atmospheric phenomena. Numerical weather models such as MANAL data have undergone a significant improvement of accuracy and spatial resolution, which makes it feasible to utilize them for the correction of atmosphere excess path delays. In the previous studies for evaluating KARAT performance, the KARAT solutions are slightly better than the solutions using VMF1 and GMF with linear gradient model for horizontal and height positions. Based on these results we have started the web-based online service, 'KAshima RAytracing Service (KARATS)' for providing the atmospheric delay correction of RINEX files on Jan 27th, 2010. The KARATS receives user's RINEX data via a proper web site (http://vps.nict.go.jp/karats/index.html) and processes user's data files using KARAT for reducing atmospheric slant delays. The reduced RINEX files are archived in the specific directory for each user on the KARATS server. Once the processing is finished the information of data archive is sent privately via email to each user. If user want to process a large amount of data files, user can prepare own server which archives them. The KARATS can get these files from the user's server using GNU ¥emph{wget} and performs ray-traced corrections. We will present a brief status of the KARATS and summarize first experiences gained after this service went operational in December 2009. In addition, we will also demonstrate the newest KARAT performance based on the 5km MANAL data which has been operational from April 7th, 2009 and an outlook on

  15. Analisi biomeccanica del MAWASHI GERI JODAN in cinture nere di Karate: modelli tecnici a confronto

    OpenAIRE

    Pecoraioli, Fabrizio

    2009-01-01

    In martial arts there are several ways to perform the turning kick . Following the martial arts or different learning models many types of kicks take shape. Mawashi geri is the karate turning kick. At the moment there are two models of mawashi geri, one comes from the traditional karate (OLD), and the other newer (NEW), who agrees to the change of the rules of W.K.F. (World Karate Federation) happened in 2000 (Macan J. et all 2006) . In this study we are focus on the differences about two mod...

  16. Development and validation of the small punch test for UHMWPE used in total joint replacements

    Energy Technology Data Exchange (ETDEWEB)

    Edidin, A.A. [Drexel Univ., Philadelphia, PA (United States). School of Biomedical Engineering, Science and Health Systems; Howmedica Osteonics Corp., Allendale, NJ (United States); Kurtz, S.M. [Drexel Univ., Philadelphia, PA (United States). School of Biomedical Engineering, Science and Health Systems; Thomas Jefferson Univ., Philadelphia, PA (United States). Dept. of Orthopaedic Surgery; Exponent, Inc., Philadelphia, PA (United States)

    2001-07-01

    In order to better understand the mechanical effects of oxidative degradation, improved oxidative stability and crosslinking on ultra-high molecular weight polyethylene (UHMWPE), a unique miniature specimen mechanical testing technique, known as the small punch test, was developed for evaluating total joint replacement components. The small punch test involves deforming a disk-shaped specimen having a thickness of 0.5 mm and a diameter of 6.4 mm. In addition to its small specimen size, the small punch test differs from conventional testing in that deformation of the UHMWPE specimen occurs under multiaxial loading conditions. Using the small punch test, we have traced the evolution of mechanical behavior in UHMWPE after natural (shelf-storage) and accelerated aging conditions. In addition, we have determined relationships between the mechanical behavior of UHMWPE and the biologically relevant wear debris volume generated in total hip replacements. The small punch test has also been used to investigate the effects of radiation crosslinking which has been shown to improve the wear performance in an in vitro hip simulator. However, the crosslinking and subsequent thermal processes used to improve the wear behavior may compromise the native mechanical behavior by changing the ductility and toughness of the UHMWPE bearing. The primary objective of this study was to investigate which tradeoffs exist related to the mechanical behavior associated with various clinically available types of highly crosslinked and thermally treated UHMWPE. We also review the development and validation of the small punch disk bend test and highlight its application to problems of clinical relevance in both hip and knee arthroplasty. (orig.)

  17. Motor and cognitive development: the role of karate

    Science.gov (United States)

    Alesi, Marianha; Bianco, Antonino; Padulo, Johnny; Vella, Francesco Paolo; Petrucci, Marco; Paoli, Antonio; Palma, Antonio; Pepi, Annamaria

    2014-01-01

    Summary Background: regular physical activity has an effect on biological responses in both muscles and organs that, in turn, alter the structure and functions of the brain. Therefore, this study aims at comparing motor (sprint, coordination ability and explosive legs strength skills) and cognitive abilities (working memory, attention, executive functioning) in children. Methods: 39 children with average chronological age of 9 years were divided in: Karatekas (n=19) and Sedentary (n=20) groups. Their abilities were measured by motor and cognitive tests. Motor skills were assessed through a battery composed by the 20 mt Sprint test, the Agility test and the Standing board jump Test. Cognitive profile was assessed by a battery of tests derived from BVN 5–11, “Batteria di Valutazione Neuropsicologica per l’Et à Evolutiva”: Visual discrimination test, Reaction time test, Forwards and Backwards Digit Span Tests, Corsi Block-Tapping test and Tower of London. Results: our results reveal significant differences between two groups (p < 0.05). Karate children show better speed times, explosive legs strength and coordination skills. They scored better on working memory, visual selective attention and executive functions. Conclusion: karate exercise training shows global benefits resulting in physiological and psychological gains in children. PMID:25332920

  18. Motor and cognitive development: the role of karate.

    Science.gov (United States)

    Alesi, Marianha; Bianco, Antonino; Padulo, Johnny; Vella, Francesco Paolo; Petrucci, Marco; Paoli, Antonio; Palma, Antonio; Pepi, Annamaria

    2014-04-01

    regular physical activity has an effect on biological responses in both muscles and organs that, in turn, alter the structure and functions of the brain. Therefore, this study aims at comparing motor (sprint, coordination ability and explosive legs strength skills) and cognitive abilities (working memory, attention, executive functioning) in children. 39 children with average chronological age of 9 years were divided in: Karatekas (n=19) and Sedentary (n=20) groups. Their abilities were measured by motor and cognitive tests. Motor skills were assessed through a battery composed by the 20 mt Sprint test, the Agility test and the Standing board jump Test. Cognitive profile was assessed by a battery of tests derived from BVN 5-11, "Batteria di Valutazione Neuropsicologica per l'Et à Evolutiva": Visual discrimination test, Reaction time test, Forwards and Backwards Digit Span Tests, Corsi Block-Tapping test and Tower of London. our results reveal significant differences between two groups (p < 0.05). Karate children show better speed times, explosive legs strength and coordination skills. They scored better on working memory, visual selective attention and executive functions. karate exercise training shows global benefits resulting in physiological and psychological gains in children.

  19. Small punch creep test: A promising methodology for high temperature plant components life evaluation

    Energy Technology Data Exchange (ETDEWEB)

    Tettamanti, S. [CISE SpA, Milan (Italy); Crudeli, R. [ENEL SpA, Milan (Italy)

    1998-12-31

    CISE and ENEL are involved for years in a miniaturization creep methodology project to obtain similar non-destructive test with the same standard creep test reliability. The goal can be reached with `Small punch creep test` that collect all the requested characteristics; quasi nondestructive disk specimens extracted both on external or internal side of components, than accurately machined and tested on little and cheap apparatus. CISE has developed complete creep small punch procedure that involved peculiar test facility and correlation`s law comparable with the more diffused isostress methodology for residual life evaluation on ex-serviced high temperature plant components. The aim of this work is to obtain a simple and immediately applicable relationship useful for plant maintenance managing. More added work is need to validate the Small Punch methodology and for relationship calibration on most diffusion high temperature structural materials. First obtained results on a comparative work on ASTM A355 P12 ex-serviced pipe material are presented joint with a description of the Small Punch apparatus realized in CISE. (orig.) 6 refs.

  20. Perspectives and understandings of Portuguese karate practitioners on the concept of Budo

    Directory of Open Access Journals (Sweden)

    Vitor Alberto Rosa

    2016-01-01

    Full Text Available This article, which falls within the scope of the sociology of sport, aims to study the perspective and understanding of martial and combat sports practitioners, especially of karate, in Portugal, on the concept of “Budo”. For this study, we used an extensive methodology and applied various techniques of social research (semi-directive interview, questionnaire survey. The sample was composed of 244 advanced karateka (brown and black belt at the national level. The results showed that karate practitioners conceive their practice as an expression of Budo, reproduced in a dominant way by teaching staff (trainers, through images, symbols and values. Karatekas gave special importance to the codes and standards of conduct associated with the ethical principles of Budô and the maintenance of the rites and symbols from the country of the Rising Sun. Karatekas who most valued Budo practiced the same karate style, therefore, the study may not be generalized to all practitioners of karate.

  1. UTICAJ ODREÐENIH BAZIČNO MOTORICKIH SPOSOBNOSTI ZA OCENU SPECIFIČNE KARATE KOORDINACIJE

    Directory of Open Access Journals (Sweden)

    Žarko Kostovski

    2010-09-01

    Full Text Available On a sample of 100 participants high karate athletes from R. Macedonia at the age of 18-27 +/- 6 months, were applied 13 motoric variables from which, 3 variables are for evaluating the rhythmic structure of the karate athletes, 6 variables are evaluating the frequency of movement and 3 variables are for evaluating the explosive strength of the lower extremities’, like a predictive system of variables, and one variable for evaluating specific karate coordination like a criteria variable. The relations between the variables in some of the motoric latitudes and the criteria variable have been established with estimating a correlation matrix and regressive analyze. The results from the regressive analyze have shown that the predictive system of variables have a statistic significance affect on the criteria variable of the specific karate coordination on a degree of .00 (p=.00.

  2. Politics and Karate: Historical Influences on the Practice of Goju-ryu

    Directory of Open Access Journals (Sweden)

    Giles Hopkins

    2012-07-01

    Full Text Available The 1936 “masters meeting” sponsored by the Ryukyu Newspaper Company—a gathering of karate masters, journalists, and government leaders—gives us some indication of the political realities at play in Japan in the early decades of the 20th century and how they may have affected Okinawan karate. Tradition often seems as though it is a safeguard against change. However, the reality is that a resurgence of nationalism fed an anti-Chinese bias and an effort to assimilate Okinawan culture; both affected karate. With economic hardships in Okinawa and a desire to popularize karate, traditions did change. Some teachers sought ways to preserve traditional Okinawan martial arts within this changing political landscape. But at what cost?

  3. Combining the casting and punching technology

    Directory of Open Access Journals (Sweden)

    Zh. Ashkeyev

    2016-07-01

    Full Text Available In the article there are presented the results of studying the microstructure of metals obtained by the method of casting and punching in equal-channel step matrixes (ECSM. The analysis of the microstructure of metals obtained on the scanning and transmission microscope showed that owing to realization of intensive shift deformations on the inclined portion of ECSM there emerge shear bands which extend practically in parallel to zones of the matrix channels connection and influence positively closing and sealing all internal defects of cast blanks.

  4. DISCRIMINATIVE ANALYSIS OF MORPHOLOGIC AND MOTORIC PARAMETER TO JUDO AND KARATE SPORTIEST BOYS

    Directory of Open Access Journals (Sweden)

    Lulzim Ibri

    2013-07-01

    Full Text Available In sample from 160 boys from secondary schools of Prizren 16-17 age, separated in two groups were implicated 18 tests, from them 10 test for valuation morphologic characteristic and 8 test, for valuation motoric abilities. Group (A is component from 80 judo athletes’ boys and group (B from 80 karate athletes’ boys. Purpose of this investigation is to verify changes between judo and karate athletes’ boys in morphologic characteristic and motoric abilities. The problem of investigation was to investigate if there are changes between judo and karate athletes’ boys in morphologic characteristic that represent longitudinal dimensionality, body measure and adipose tissue, and in motoric abilities (used is eurofit battery tests. For global analysis of dimension to some changes and variable system (which contribute in changes between judo and karate athletes’ boys were implicated t-test for small independent sample and, canonic discriminative analysis. The results of this study show that judo and karate athletes significantly differ among themselves in motoric abilities, judo athletes are better in the tests: long jump from place (LOJU, squeeze palm (SQPA and support the knuckle (SUKN, while the karate athletes are better in the tests: taping for hands (TAHE, reach sitting down position (RSDP and run there-hire 10x5 meters (R10x5M, but these changes were not noticed and morphological variables.

  5. Kinematics of Straight Right Punch in Boxing

    Directory of Open Access Journals (Sweden)

    Mahdi Cheraghi

    2014-07-01

    Full Text Available The purpose of this study was to describe biomechanical parameters of head, upper and lower body extremities during a straight right punch throw related to performance and injury mechanism. Subjects were eight elite right-handed male (age 20.4 ± 2.1yrs; height 177.4 ± 8.5 cm; mass 70.4 ± 16.8 kg amateur boxers. 3D motion analysis was used to assess the kinematics of the right side extremities and head. Ensemble averaging of time normalized kinematic parameters was used to have better visual inspection. Results showed a similar pattern between subjects with some considerable variation in some parameters that pointed out to individualized pattern in elite boxers. Investigation of lower body joints kinematics explained boxers throw punch using leg drive. Stretch-shortening cycle detected in the technique implies potential for performance enhancing using plyometrics. Head velocity measured in anterior-posterior and medial-lateral direction would intensify potential head injuries.

  6. Development of lubricant test for punching and blanking

    DEFF Research Database (Denmark)

    Olsson, David Dam

    2001-01-01

    The background for development of new lubricants Requirements to lubricant test for punching Methods of evaluating lubricants Test equipment developed at DTU Conclusion.......The background for development of new lubricants Requirements to lubricant test for punching Methods of evaluating lubricants Test equipment developed at DTU Conclusion....

  7. The Dynamic test of Novel Punch Driven by Linear Motor

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    The key character of punch is its impulsion. For the novel punch driven by linear motor, the computer-aided test system is used. Its frequency performance is calculated by the identification method according to the dynamic demarcation. This dynamic test system presented here can be applied in the sample machines under development and performance test of finished products.

  8. Gate oxide punching thru mechanism in plasma dry etching

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    The punching thru mechanism of gate oxide (thickness about 15A) was investi- gated. Because of the thin thickness of gate oxide, gate oxide punching thru may easily happen during the plasma process. It was found that what caused the punching thru was not only the selectivity of poly-silicon/oxide but also the pattern topography. We used the basic SRAM pattern to check this topography effect, and found that gate oxide located at the narrow spacing of two parallel serpentine lines was the most easily punched thru. What caused the topography effect was the starvation of oxygen in these places which were induced by the residue of poly-silicon and enhanced by electron shading effect. So, to solve the issue of gate oxide punching thru, firstly the selectivity should be enough, secondly we should pay attention to the etching pattern topography.

  9. Analysis of Pick-Up Development in Punching

    DEFF Research Database (Denmark)

    Olsson, David Dam; Bay, Niels; Andreasen, Jan Lasson

    2002-01-01

    The development of pick-up of work piece material on the punch surface with increasing number of strokes during punching of stainless steel sheet is investigated applying Scanning Electron Microscopy (SEM), 3D roughness mapping and measurements of the backstroke force. It is found that pick......-up on the punch stem develops gradually backwards from the tip of the punch with increasing number of strokes saturating at a certain level while the radial build-up in the case of dry friction conditions continues until the clearance between the punch and die has been filled up. The rate of pick......-up is significantly smaller in case of lubrication and may be very low if an efficient boundary lubricant is applied. Good correlation between the pick-up development and the backstroke force is found....

  10. Characterization of kinesiological patterns of the frontal kick, mae-geri, in karate experts and non-karate practitioners

    Directory of Open Access Journals (Sweden)

    António M. VencesBrito

    2014-02-01

    Full Text Available Presently, coaches and researchers need to have a better comprehension of the kinesiological parameters that should be an important tool to support teaching methodologies and to improve skills performance in sports. The aim of this study was to (i identify the kinematic and neuromuscular control patterns of the front kick (mae-geri to a fixed target performed by 14 experienced karate practitioners, and (ii compare it with the execution of 16 participants without any karate experience, allowing the use of those references in the analysis of the training and learning process. Results showed that the kinematic and neuromuscular activity during the kick performance occurs within 600 ms. Muscle activity and kinematic analysis demonstrated a sequence of activation bracing a proximal-to-distal direction, with the muscles presenting two distinct periods of activity (1, 2, where the karateka group has a greater intensity of activation – root mean square (RMS and electromyography (EMG peak – in the first period on Rectus Femoris (RF1 and  Vastus Lateralis (VL1 and a lower duration of co-contraction in both periods on Rectus Femoris-Biceps Femoris and Vastus Lateralis-Biceps Femoris (RF-BF; VL-BF. In the skill performance, the hip flexion, the knee extension and the ankle plantar flexion movements were executed with smaller difference in the range of action (ROA in the karateka group, reflecting different positions of the segments. In conclusion, it was observed a general kinesiological pattern, which was similar in karateka and non-karateka practitioners. However, in the karateka group, the training induces a specialization in the muscle activity reflected in EMG and kinematic data, which leads to a better ballistic performance in the execution of the mae-geri kick, associated with a maximum speed of the distal segments, reached closer to the impact moment, possibly representing more power in the contact.

  11. The subtractive fight: the spirituality of the empty hands method as the north of the body philosophy in Karate-Do / O combate subtrativo: a espiritualidade do esvaziamento como norte da filosofia corporal no Karate-Do

    Directory of Open Access Journals (Sweden)

    Cristiano Roque Antunes Barreira

    2008-01-01

    Full Text Available Karate is a fight practice that does not make use of weapons. It is based on old traditions and its main aim is to develop a sense of personality in the practitioner. Karate originated from unique spiritual and psychological dynamics, which are of utmost importance for the full understanding of this practice. The objective of this research is to analyze karate-do by means of its spirituality. This is because, together with the fundamental texts about the recent tradition of this fight, spirituality is considered to be the essence present in all dimensions of the artistic expression of karate. To this end, the historiographical methodology of phenomenological perspective was employed in this study. Karate-do has the spirituality of the empty hands method as the north of its body philosophy. Themes with blurred borders are analyzed from this spiritual point of view herein. This dynamics includes the subtractive fight, aiming at the fluid and intuitive understanding of reality.

  12. Reduce the noise of punch press with the equivalent damping

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    To reduce the noise of the punch press during the punching process, the polyurethane elastomer is used as the damping material. The experiments of reducing noise were made by means of adding the polyurethane elastomer at different positions on the 100 kN and 1 000 kN punch presses. The better effect of reducing noise was obtained. After researching and analyzing a large number of test data, the "equivalent damping hypothesis" is put forward. The hypothesis makes the experiment of reducing noise simpler and also more economical. It is estimated that there is a vast application in the research area of vibration control and noise reduction.

  13. Experimental Study on Noise Reduction of Punch Press

    Institute of Scientific and Technical Information of China (English)

    CHEN Wei; MA Xiang-ping; SUN Chang-qing

    2005-01-01

    To reduce the noise of punch press during the punching process, the polyurethane elastomer is used as the damping material. The experiments of reducing noise were made by means of adding the polyurethane elastomer at different positions of 100 kN and 1 000 kN punch press. The better effect of reducing the noise was obtained. With the research and analysis of a large number of test data, the "equivalent damping hypothesis" is put forward. The hypothesis makes the experiment of reducing noise be more simple and cost effective. This method would be exploited in area of vibration control and reducing noise.

  14. An Incursion on Punching of Reinforced Concrete Flat Slabs

    Directory of Open Access Journals (Sweden)

    Dan-Vasile Bompa

    2009-01-01

    Full Text Available Starting from the early 60s continuous studies have been made regarding punching of concrete flat slabs. The evolution of technology and calculus systems influenced this engineering branch. Nowadays is possible to account in structural analysis all the non-linear behaviour of reinforced and prestressed concrete and to get the most close structural response in comparison with the real behaviour. As a controversy matter, several tests and theories have been developed. Nowadays researchers try to find the most accurate and economic formula for punching. This paper purpose is to make a survey on punching classical model and related nonlinear concrete behaviour regarded to this issue.

  15. Application of Assistive Computer Vision Methods to Oyama Karate Techniques Recognition

    Directory of Open Access Journals (Sweden)

    Tomasz Hachaj

    2015-09-01

    Full Text Available In this paper we propose a novel algorithm that enables online actions segmentation and classification. The algorithm enables segmentation from an incoming motion capture (MoCap data stream, sport (or karate movement sequences that are later processed by classification algorithm. The segmentation is based on Gesture Description Language classifier that is trained with an unsupervised learning algorithm. The classification is performed by continuous density forward-only hidden Markov models (HMM classifier. Our methodology was evaluated on a unique dataset consisting of MoCap recordings of six Oyama karate martial artists including multiple champion of Kumite Knockdown Oyama karate. The dataset consists of 10 classes of actions and included dynamic actions of stands, kicks and blocking techniques. Total number of samples was 1236. We have examined several HMM classifiers with various number of hidden states and also Gaussian mixture model (GMM classifier to empirically find the best setup of the proposed method in our dataset. We have used leave-one-out cross validation. The recognition rate of our methodology differs between karate techniques and is in the range of 81% ± 15% even to 100%. Our method is not limited for this class of actions but can be easily adapted to any other MoCap-based actions. The description of our approach and its evaluation are the main contributions of this paper. The results presented in this paper are effects of pioneering research on online karate action classification.

  16. Technical and Tactical Aspects that Differentiate Winning and Losing Performances in Elite Male Karate Fighters.

    Science.gov (United States)

    Vidranski, Tihomir; Sertić, Hrvoje; Jukić, Josefina

    2015-07-01

    The purpose of this research was to identify the fighters' technical and tactical activity indicators in order to determine indicator significance regarding situational efficiency and designation between winning and losing performances in a karate match. We scientifically observed a sample of 274 male contesters of 137 karate matches during the 2008 World Karate Championship in Tokyo. Each individual competitor was observed in maximum of three matches. The matches were recorded using a DVD camera in order to collect data for further analysis, and the sample was further described using 48 technical and tactical indicators of situational efficiency and match outcome variables. The obtained results indicate that a karate match is composed of 91% of non-scoring techniques and 9% of scoring techniques in the total technique frequency. On this basis a significant difference in the situational efficiency between the match winners and the losing contesters has been discovered. Those two groups of fighters exhibit a statistically significant difference (pkarate match are in the largest extent defined by non-scoring techniques. Therefore, it would be a grave mistake to disregard non-scoring karate techniques in any future situational efficiency studies. It has been discovered that the winners differ from the defeated contesters by a higher level of situational efficiency in their executed techniques, which incorporate versatility, biomechanical and structural complexity, topological diversity and a specific tactical concept of technique use in the attack phase.

  17. Cardioinhibitory reflex due to a karate kick: a case report.

    Science.gov (United States)

    de Froidmont, Sébastien; Lobrinus, Johannes Alexander; Michaud, Katarzyna; Palmiere, Cristian; Augsburger, Marc-Pierre; Mangin, Patrice; Grabherr, Silke

    2015-06-01

    This article describes the case of a 17-year-old adolescent boy who received a foot kick in the trunk area from an expert in karate. He presented with immediate cardiocirculatory arrest. After a prolonged resuscitation, he was transferred to a hospital where he died 5 days later without ever regaining consciousness. Postmortem investigations including autopsy, radiology, histology, toxicology, and postmortem chemistry were performed that showed signs of multiple organ failure, an acute hemorrhage in the region of the celiac plexus, and signs of medical resuscitation. No preexisting disease, particularly those concerning the heart, was objectified. The cause of death was attributed to multiple organ failure after a prolonged cardiocirculatory arrest. Concerning the origin of the cardiac arrest, 2 hypotheses were considered-a cardioinhibitory reflex and a cardiac contusion (commotio cordis). Because of the presence of traumatic lesions in the celiac plexus, the first hypothesis was finally submitted. This case is reported because rare cases of sudden death from celiac reflex are described in the literature where it is almost impossible to find references with accurate documentation. The presented case confirms the importance of detailed documentation of the circumstances and postmortem investigations to establish a diagnosis of death due to cardioinhibitory reflex.

  18. Vividness and transformation of mental images in karate and ballet.

    Science.gov (United States)

    Di Corrado, Donatella; Guarnera, Maria; Quartiroli, Alessandro

    2014-12-01

    While imagery research has become popular in recent years, little research has specifically investigated differences in imagery ability between open- and closed-skill sport activities. The purpose of this study was to investigate whether the type of task, open or closed, affects vividness and controllability differently. Thirty female classic dancers (closed skill), 30 female karate athletes (open skill), and 30 female non-athlete students, between 14 and 20 years of age (M = 17.0, SD = 1.6), participated. They completed the Vividness of Visual Imagery Questionnaire, the Vividness of Movement Imagery Questionnaire, and the Subtraction of Parts Task. There was no difference in imagery ability between open- and closed-skill sport groups. Furthermore, dancers and karatekas had higher mean scores on imagery ability than the non-athlete group. A positive correlation was observed between the two questionnaires, supporting findings on the componential basis of imagery. This study contributed to increase the research in the specific area of open- and closed-skill sports and imagery ability.

  19. Vividness and Transformation of Mental Images in Karate

    Directory of Open Access Journals (Sweden)

    Maria Guarnera

    2016-07-01

    Full Text Available Background: Systematic reviews have shown that imagery improves performance in motor tasks. Objective: In order to observe the function of imagery in sport, this study investigated modifications in Imagery Ability, in terms of  both controllability (i.e., the accurateness with which an image can be operated mentally and vividness (i.e., the precision richness of an image, in competitive  and recreational karateka. Method: Thirty volunteers karateka  completed the Vividness of Visual Imagery Questionnaire, the Vividness of Movement Imagery Questionnaire-2, and the Subtraction of parts Task. Results: Competitive athletes reported higher scores on imagery ability than recreational athletes. No correlations were found between the variables of Vividness and the Subtraction of parts Task for any of the two groups. All analyses were two-tailed with α at .05. Conclusion: The study has risen the investigation in the particular ambit of imagery ability, providing an additional support for the multidimensional nature of mental imagery and for its usefulness in athletes.  Keywords: imagery, motor tasks, karate, static vividness

  20. Fabrication of punch and die of micro-blanking tool

    Science.gov (United States)

    Mahmudah, Aida; Kiswanto, Gandjar; Priadi, Dedi

    2017-06-01

    The difficulties of tool fabrication in micro level provide an enormous challenge due to the dimension limitation. Reducing the difficulty and tool cost fabrication should always be considered by determining the simplicity of tool geometry, precision tolerance, and an appropriate material selection. This paper study about the manufacturing of micro-blanking punch-die. The mechanical material removal method was chosen to fabricate punch-die since this is a single piece production and intended for small-scale production of micro parts. The manufacturing process consists of punch-die design and fabrication, tool assembly, and clearance measurement. The stress analysis is also conducted to ensure the strength of the punch-die. A micro-blanking experiment was held to observe the tool performance. The result showed that micro-blanking tool can be manufactured successfully and used well to conduct the micro-blanking experiment.

  1. Research on the Visual Processing System of the Punch Press

    Directory of Open Access Journals (Sweden)

    Sun Xuan

    2016-01-01

    Full Text Available Most of raw materials of small hardware processing for plate scraps, and it’s realized through the manual operation of ordinary punch, which way has the low production efficiency and the high labor intensity. In order to improve the automation level of production, developing and designing of a visual processing system for punch press manipulator which based on the MFC tools of Visual Studio software platform. Through the image acquisition and image processing, get the information about the board to be processed, such as shape, length, the center of gravity position and pose, and providing relevant parameters for positioning gripping and placing into the punch table positioning of the feeding manipulator and automatic programming of punching machine, so as to realize the automatic operation about press feeding and processing.

  2. The Stories of Meibukan Gojyu Ryu Karate as Told by Yagi Meitatsu

    Directory of Open Access Journals (Sweden)

    Robert Toth

    2012-07-01

    Full Text Available Gojyu-ryu karate has the distinction of being the first of the Okinawan karate styles to be officially named (Higaonna, 1995: 68. Miyagi Chojun created the style and formally registered the name with the Japanese Government in 1933 (Hiagonna, 1985: 28. The late  Yagi Meitoku was Miyagi Chojun’s most senior karate student. After Miyagi Chojun’s death, the Miyagi family chose Yagi Meitoku to carry on the style’s traditions. Yagi taught the system to his two sons. The oldest son, Meitatsu, carries on not only the style’s technical finesses and its philosophy, but also the stories that make up its history.

  3. Effects of the new karate rules on the incidence and distribution of injuries

    Science.gov (United States)

    Macan, J; Bundalo‐Vrbanac, D; Romić, G

    2006-01-01

    Objectives To evaluate the incidence and distribution of injuries in karate before and after the implementation of new rules established by the World Karate Federation in 2000. Methods Injury incidence was followed up during the official karate competition seasons of 1997 and 2002 in Croatia. A questionnaire was used to collect data on the age and sex of the competitor and localisation and severity of injury. Data were analysed separately for female and male competitors and age categories 98%) were categorised as mild (grade 1) in both periods studied. Conclusions The results of this study confirm the importance of the new competition rules in the distribution and prevention of injuries in martial arts. Strict judging and heavy penalties for uncontrolled blows, particularly for the youngest competitors, can significantly decrease the risk of injury. PMID:16556787

  4. NEW PUNCHING MACHINE DRIVEN BY LINEAR INDUCTION MOTOR

    Institute of Scientific and Technical Information of China (English)

    2000-01-01

    The research and application of the punching machine driven by a linear induction motor(LIM)are introducedThe fundamental principle,construction,performance and application are describedComparing this new model machine with its traditional form,the LIM driven punching machine has many great advantages,such as,simple construction,small size and mass,low production cost,short production time,easy to control,low noise and considerable energy saving

  5. Shear punching studies on an impact loaded reinforced concrete slab

    Energy Technology Data Exchange (ETDEWEB)

    Saarenheimo, Arja, E-mail: Arja.saarenheimo@vtt.fi; Tuomala, Markku, E-mail: Markku.tuomala@professori.fi; Calonius, Kim, E-mail: Kim.calonius@vtt.fi

    2015-12-15

    A shear punching test series is being carried out at VTT by using as a target a two way simply supported concrete plate with a span of 2 m and a thickness of 25 cm. The mass of the impacting stainless steel missile-type projectile is 50 kg. The capabilities of different types of calculation methods in assessing local shear deformation and possible shear punching cone formation are studied. Numerical solutions are compared with experimental results of test called X3.

  6. Plastic deformation of a wedge by a sliding punch

    Science.gov (United States)

    Nepershin, R. I.

    2016-11-01

    We present a self-similar solution of the problem of deformation of an ideally plastic wedge by a sliding punch with regard to contact friction; such a solution generalizes the well-known solutions of the problem of wedge penetration into a plastic half-space and of compression of an ideally plastic wedge by a plane punch. The problem is of interest for modeling the processes of plastic deformation of rough surfaces of metal pieces by a rigid tool.

  7. Prediction of effects of punch shapes on tableting failure by using a multi-functional single-punch tablet press

    Directory of Open Access Journals (Sweden)

    Takashi Osamura

    2017-09-01

    Full Text Available We previously determined “Tableting properties” by using a multi-functional single-punch tablet press (GTP-1. We proposed plotting “Compactability” on the x-axis against “Manufacturability” on the y-axis to allow visual evaluation of “Tableting properties”. Various types of tableting failure occur in commercial drug production and are influenced by the amount of lubricant used and the shape of the punch. We used the GTP-1 to measure “Tableting properties” with different amounts of lubricant and compared the results with those of tableting on a commercial rotary tableting machine. Tablets compressed with a small amount of lubricant showed bad “Manufacturability”, leading to sticking of powder on punches. We also tested various punch shapes. The GTP-1 correctly predicted the actual tableting results for all punch shapes. With punches that were more likely to cause tableting failure, our system predicted the effects of lubricant quantity in the tablet formulation and the occurrence of sticking in the rotary tableting machine.

  8. Punch Biopsy Results of Nasopharynx Pathologies

    Directory of Open Access Journals (Sweden)

    İsa Özbay

    2016-03-01

    Full Text Available Objective: Although nasopharynx (NF has an anatomi­cally distant sites to view, biopsy can be taken easily from NF by the help of an endoscope in order to reach a defini­tive diagnosis. In this study, NF pathology results in the patient group were analyzed retrospectively. Methods: NF biopsy results of 80 patients who were ad­mitted to Ear, Nose and Throat (ENT clinic of Dumlupınar University Evliya Celebi Education and Research Hospital between September 2012-February 2016 were included in the study, retrospectively. NF has been viewed to rule out NF cancer under general or local anesthesia by rigid or flexible endoscopes and punch biopsies were taken. Results: NF patients who underwent biopsy were com­posed of 25 (31.2% females and 55 (68.8% males and the average age was 35.33. Histopathological results in 3 patients (3.7% were malignant. The pathology (96.3% were identified as chronic lymphoid hyperplasia and lym­phoid processes in the remaining 77 patients. 4 patients underwent repeat biopsy follow-on clinical suspicion of malignancy, but ultimately malignancy was not observed. Conclusion: NF biopsy is a method which is easily ap­plied in the examination of the cancer and other masses of NF. In this study, age, sex, clinical and histopathologic analysis of the patients who underwent NF biopsies were discussed in the light of the literature. J Clin Exp Invest 2016; 7 (1: 83-86

  9. PENGEMBANGAN MODEL LATIHAN KARATE KIDS PADA ANAK USIA SEKOLAH DASAR KELAS ATAS

    Directory of Open Access Journals (Sweden)

    Widha Srianto

    2014-09-01

    Full Text Available Penelitian ini bertujuan untuk menghasilkan model latihan karate kids pada anak usia sekolah dasar (SD kelas atas (10-12 tahun. Penelitian pengembangan ini dilakukan dengan mengadaptasi langkah-langkah penelitian sebagai berikut: (1 pengumpulan informasi di lapangan, (2 melakukan analisis terhadap informasi yang telah dikumpulkan, (3 mengembangkan produk awal, (4 validasi ahli dan revisi, (5 uji coba lapangan skala kecil dan revisi,  (6 uji coba lapangan skala besar dan revisi, dan (7 pembuatan produk final. Uji coba skala kecil dilakukan di klub Forki Kota Yogyakarta berjumlah 7 anak. Uji coba skala besar di klub Inkanas DIY berjumlah 16 anak. Instrumen pengumpulan data yang digunakan yaitu: (1 pedoman wawancara, (2 skala nilai, (3 pedoman observasi model, (4 pedoman observasi keefektifan model, dan (5 kuesioner untuk siswa. Teknik analisis data yang dilakukan yaitu analisis deskriptif kuantitatif dan analisis deskriptif kualitatif. Hasil penelitian ini berupa model latihan karate kids pada anak usia SD kelas atas (10-12 tahun yaitu: (1 model latihan maegeri, (2 model latihan gyaku tsuki, (3 model latihan mawashigeri, dan (4 model latihan oi tsuki. Dari hasil analisis data penilaian para ahli materi dan kuesioner anak, dapat ditarik kesimpulan bahwa model latihan karate kids pada anak usia SD kelas atas (10-12 tahun ini dinilai baik dan efektif. Kata kunci: model latihan, karate kids

  10. Calculation of the Novovoronezh Recriticality Experiment with the KARATE-440 code system

    Energy Technology Data Exchange (ETDEWEB)

    Hegyi, György, E-mail: ghegyi@aeki.kfki.hu [MTA KFKI Atomic Energy Research Institute, Budapest (Hungary)

    2011-07-01

    In this paper the results of KARATE-440 calculations on Novovoronezh NPP Recriticality Experiment are presented, the corresponding parameters are analyzed. The simulation of the processes and the comparison of the results with the measurements are of particular interest as these efforts make our code to be validated in a higher level. The KARATE-440 code system has been developed and applied for VVER-440 core analysis during near twenty years, as a close collaboration among the developers and the specialists at the 4 Hungarian nuclear power units. KARATE is now a mature, demonstrated, complete and integrated system of computer codes and procedures that provide full and independent VVER core analysis capabilities. Even if only some well defined states of the experiment were simulated, satisfactory agreement was found between measured and calculated data. The results present evidence that the KARATE- 440 code package can adequately model the reactor states in a wide range of performance parameters and the special core type referred in the experiment so it is acceptable for neutronic analysis of all the VVER-440 NPP's. (author)

  11. "Oos Sensei! Oos Sempai!": A Karate School and Lessons on Inclusion

    Science.gov (United States)

    Rao, Shridevi

    2008-01-01

    Based on the findings of a qualitative case study, this paper describes how a karate school within a community came naturally to include students with disabilities. Data for this study were collected through in-depth interviews with the Sensei or head instructor of the school and participant observations. Findings indicate that the Sensei's…

  12. RELATIVE AND ABSOLUTE RELIABILITY OF KARATE SPECIFIC AEROBIC TEST (KSAT IN EXPERIENCED MALE ATHLETES

    Directory of Open Access Journals (Sweden)

    Helmi Chaabane

    2012-07-01

    Full Text Available The present investigation was conducted to evaluate the relative and absolute reliability and the minimal detectable change (MDC95% of the karate specific aerobic test (KSAT in male karate athletes. Sixteen subjects (age: 22.2±3.7 years, height: 175.7±6.7 cm, body mass: 72.7±7.2 kg and karate experience: 9.2±4.5 years participated in this study and performed the KSAT twice (test-retest. Reliability of time to exhaustion (TE was very good, with intraclass correlation coefficient ICC(3.1>0.90, standard errors of measurement SEM0.05. Effect size for all variables was dz≤0.2, rated as trivial. Thus, when using the present test as a measure of aerobic fitness, a change greater than 9.4%(81.42 s is necessary to be confident (at the 95% level that the change in time to exhaustion reflects improvement and exceeds the measurement error. The KSAT is a reliable tool that can be used by practitioners for assessing aerobic fitness in experienced karate athletes.

  13. "Oos Sensei! Oos Sempai!": A Karate School and Lessons on Inclusion

    Science.gov (United States)

    Rao, Shridevi

    2008-01-01

    Based on the findings of a qualitative case study, this paper describes how a karate school within a community came naturally to include students with disabilities. Data for this study were collected through in-depth interviews with the Sensei or head instructor of the school and participant observations. Findings indicate that the Sensei's…

  14. Anthropometric and physical performance profiles of elite karate kumite and kata competitors.

    Science.gov (United States)

    Koropanovski, Nenad; Berjan, Bobana; Bozic, Predrag R; Pazin, Nemanja; Sanader, Aleksandra; Jovanovic, Srecko; Jaric, Slobodan

    2011-12-01

    KARATE TOURNAMENTS CONSIST OF TWO EQUALLY IMPORTANT KARATE DISCIPLINES: the kumite and kata competitions. Due to being based both on the distinctive selection of movement techniques and their kinematic and kinetic patterns, we hypothesized that the elite kumite and kata competitors could differ regarding their anthropometric and physical performance profiles. Thirty-one senior male karate competitors of the national karate team (kumite n = 19; kata n = 12) participated in this study. The tests applied included both the assessment of anthropometric (body height, mass and body mass index) and the following physical performance measurements: the adductor and hamstring flexibility (sideward leg splits test), speed and acceleration (20-m sprint test with 10-m acceleration time), explosive power (countermovement and standing triple jump), agility ("T"- test) and aerobic endurance (20-m multistage shuttle run test). The kumite competitors revealed a larger body size through body height (p = 0.01) and mass (p = 0.03), while the differences in body composition were non-significant. The kumite competitors also demonstrated higher acceleration (p = 0.03) and explosive power (standing triple jump; p = 0.03). A 6-7° higher flexibility of the kata competitors remained somewhat below the level of significance (p = 0.09). The findings could be interpreted by the distinctive differences in the movement techniques. Specifically, a higher explosive power could be beneficial for kumite, while both a smaller stature and higher flexibility (particularly of the lower extremity) could be important for the exceptionally low postures of the kata competitors. Although further elucidation is apparently needed, the obtained finding could be of importance for both the early selection and training of karate competitors.

  15. PHACOCELE FOLLOWING FIST PUNCH: A RARE CASE REPORT

    Directory of Open Access Journals (Sweden)

    Samarth Mishra

    2016-06-01

    Full Text Available AIM A subconjunctival or a sub-Tenon’s dislocation of natural crystalline lens is termed as phacocele, mostly due to blunt force impact on previously thinned and weakened sclera as in high myopes, previous ocular surgery, rigid sclera or hard crystalline lens. Here, we report a 40-year-old woman with phacocele due to fist punch on her eyeball with no associated surgical or myopic history. Phacocele in itself is rare and in our knowledge this is the first reported case of phacocele following fist punch.

  16. The relationship of psychophysiological characteristics karate qualifications in light weight category with the effective implementation of kick leg techniques in upper level of the opponent

    Directory of Open Access Journals (Sweden)

    Vladimir Saienko

    2015-04-01

    Full Text Available Purpose: set the density of the relationship of psycho-physiological characteristics of karate qualifications in light weight category with the efficiency of the implementation of kick leg techniques in the upper level of the opponent. Material and Methods: The study involved thirty highly skilled karatekas in light weight category. Conducted pedagogical and psychophysiological testing, carried out an analysis of competitive actions, carried out a special analysis of scientific and methodical literature, applied the methods of mathematical statistics. Results: The degree of correlation between the obtained numerical results of psycho-physiological characteristics and indicators of the effectiveness different types of gradient kicking karate qualifications in light weight category in upper level of the opponent. Conclusions: karatekas high qualifications in light weight category, the higher the strength of neural processes in the processing of information in the imposed rhythm, the more reliable in a competitive match under implementation methods kick leg them with maximum power and speed-up in upper level of the opponent, and at the higher they characteristic of functional mobility of nervous processes in the processing of information in the imposed rhythm, the greater the likelihood of fighters attacking moves fast.

  17. APPLICATION OF THE GAP TECHNIQUE IN MEASURING SERVICE QUALITY IN EGYPTIAN FEDERATION KARATE

    Directory of Open Access Journals (Sweden)

    Khalil Samira

    2010-08-01

    Full Text Available This study aims to measure the gap between the administration and the beneficiaries of the quality of the service in the federation and sport regions of Karate. The sample of this study was chosen randomly between the members of the board of directors of the Federation and regions, the coaches , referees and players registered in theEgyptian Federation of Karate whose numbers are (149. The sample of the study was classified into two beneficiary classes. The first beneficiary class is coaches and referees whose number are (70 persons and their administration is the members of the board of directors of the Federation and its regions whose number are (14persons. The second class is the players whose number are (65 players and their administration is the members ofthe board of directors of the Federation and its regions the referees and coaches' number are (84 persons. This study used a questionnaire (SERVQUAL to measure the quality of the service. Results pointed to a negative gap between the expectations of the beneficiaries of the excellent service level and the perceptions of the administrations of these expectations.These results refer to the weakness of administration ability in the Egyptian Federation of Karate to know the needs and desires of beneficiaries from (coaches-referees- players of the quality level in the service provided to them. The existence of a relative gap between the perceptions of the beneficiaries of the service actually provided and the administration of the qualities of the service actually provided, therefore itrefers to the decline the motive level of the administration of Egyptian Federation of Karate to provide the service to the beneficiaries in a form that conforms with what the administration already decided for the specifications. The existence of a negative gap between the expectations of the beneficiaries of the level of theexcellent service and its perception of the actual performance of this service refers to

  18. Physiological Responses and Performance Analysis Difference between Official and Simulated Karate Combat Conditions

    Science.gov (United States)

    Chaabène, Helmi; Mkaouer, Bessem; Franchini, Emerson; Souissi, Nafaa; Selmi, Mohamed Amine; Nagra, Yassine; Chamari, Karim

    2013-01-01

    Purpose This study aimed to compare physiological responses and time-motion analysis between official and simulated karate combat. Methods Ten high-level karatekas participated in this study, which included official and simulated karate combat. Results Karatekas used more upper-limb attack techniques during official combat compared to simulated ones (6±3 vs 3±1; P=0.05, respectively). For official and simulated karate matches, the numbers of high-intensity actions (i.e. offensive and defensive fighting activity) were 14±6 and 18±5, respectively (P>0.05), lasting from <1s to 5s each. Total fighting activity phase was lower during official compared to simulated matches (21.0±8.2s vs 30.4±9.9s, P<0.01, respectively). Effort (10.0±2.8s) to rest (11.9±2.7s) ratio (E:R) was 1:1 and high-intensity actions (1.6±0.3s) to rest (11.9±2.7s) ratio was higher than 1:7 during simulated combat. During official karate match, the activity and rest duration were 10.0±3.4s and 16.2±4.1s, respectively (E:R ratio 1:1.5), while high-intensity actions were 1.5±0.3s, resulting in an E:R ratio of 1:11. Blood lactate concentration was higher during official (11.14±1.82 mmol.l-1) compared to simulated karate combat (7.80±2.66 mmol.l-1) (P<0.05). Subjective perceived exertion differed significantly between official and simulated combat (14±2 vs. 12±2; P<0.05, respectively). The majority of karatekas’ perceived exertion was higher in the lower limb muscle groups irrespective of the karate combat condition. Conclusion Official and simulated matches differ considerably, therefore coaches should create new strategies during training sessions to achieve the same effort and pause profile of competitive matches and/or that athletes should be submitted to frequent competitions to adapt themselves to the profile of this event. PMID:24868428

  19. Development of a Sports Specific Aerobic Capacity Test for Karate - A Pilot Study

    Science.gov (United States)

    Nunan, David

    2006-01-01

    The purpose of the study was to develop an aerobic fitness assessment test for competitive Karate practitioners and describe the preliminary findings. Five well-trained, competitive Karate practitioners participated in this study. A protocol simulating common attack strikes used in competition Karate sparring was developed from video analysis. In addition, pilot testing established a specific sequence of strikes and timings to be used in the test. The time to perform the strike sequence remained the same, whilst the time between strike sequence performances was progressively reduced. The aim of the test was to increase intensity of exercise through a decrease in recovery. On two separate occasions, absolute and relative peak oxygen uptake (VO2peak), peak ventilation (VEpeak), maximum heart rate (HRM), and time to exhaustion (TE) obtained during the test were recorded. Subjective feedback provided by the participants was positive in that participants felt the test accurately simulated actions of a competitive sparring situation, and as a result athletes felt more motivated to perform well on this test. There was no significant between test difference in absolute VO2peak, relative VO2peak, HRM and TE (p > 0.05), indicating a potentially high reproducibility with the new test for these variables (test 1-test 2 difference of 0.04 L·min-1, 1 ml·kg-1·min-1, -3 beats·min-1, and 28 s; respectively). However, VEpeak displayed potentially less reproducibility due to a significant difference observed between tests (test 1- test 2 difference of -2.8 L·min-1, p < 0.05). There was a significant relationship between TE and relative VO2peak (R2 = 0.77, p < 0.001). Further developments to the test will need to address issues with work rate/force output assessment/monitoring. The new test accurately simulates the actions of competitive Karate sparring. Key Points This is the first attempt at an aerobic fitness test specific to competitive Karate practitioners Anecdotal reports

  20. Moment Capacity of Timber Reinforced with Punched Metal Plate Fasteners

    DEFF Research Database (Denmark)

    Nielsen, Jacob; Ellegaard, Peter

    of the section is obtained, resulting in a more economic truss design. In order to develop design methods for sections with plate reinforcement, bending tests have been made. The timber is Swedish spruce of strength class K-18(S8) and K-24(S10) with a thickness of 45 mm. The punched metal plate is from Gang...

  1. TRANSFORMED MOTORIC CHARACTERISTICS AFTER RECEIVED PROGRAMMED TRAINING PROCESS ON SUPERIOR KARATE ATHLETES

    Directory of Open Access Journals (Sweden)

    Žarko Kostovski

    2010-03-01

    Full Text Available The research is made on intentional sample of participants, members of Macedonian Karate Representation, in the period of preparing to qualify for the world championship in Tokyo 2008. Within the research, were used 19 (nineteen variables for evaluation the following motorics areas: tests for evaluate muscles strength, explosive strength, movement frequency of lower extremity, rhythmic and coordination. Basic purpose of the research was to establish difference within the variables to evaluate motorics abilities between male karate athletes on the age of 18 to 28 (seniors, after a nine-day programmed training in the period of preparing. Using comparative method the results from the both measures, whereby there were evident numerical improvement in the whole motorist abilities, but no difference in the levels of statistic significances.

  2. The construct validity of session RPE during an intensive camp in young male Karate athletes

    Science.gov (United States)

    Padulo, Johnny; Chaabène, Helmi; Tabben, Montassar; Haddad, Monoem; Gevat, Cecilia; Vando, Stefano; Maurino, Lucio; Chaouachi, Anis; Chamari, Karim

    2014-01-01

    Summary Background: the aim of this study was to assess the validity of the session rating of perceived exertion (RPE) method and two objective HR-based methods for quantifying karate’s training load (TL) in young Karatekas. Methods: eleven athletes (age 12.50±1.84 years) participated in this study. The training period/camp was performed on 5 consecutive days with two training session (s) per-day (d). Construct validity of RPE method in young Karate athletes, was studied by correlation analysis between RPE session’s training load and both Edwards and Banister’s training impulse score’ method. Results: significant relationship was found between inter-day (n-11 × d-5 × s-2 = 110) sessions RPE and Edwards (r values from 0.84 to 0.92 p karate’s training load in young karate athletes. PMID:25332921

  3. Differences in corticospinal system activity and reaction response between karate athletes and non-athletes.

    Science.gov (United States)

    Moscatelli, Fiorenzo; Messina, Giovanni; Valenzano, Anna; Petito, Annamaria; Triggiani, Antonio Ivano; Messina, Antonietta; Monda, Vincenzo; Viggiano, Andrea; De Luca, Vincenzo; Capranica, Laura; Monda, Marcellino; Cibelli, Giuseppe

    2016-12-01

    The aim of this study was to verify the hypothesis that transcranial magnetic stimulation (TMS) parameters over the hand region of the motor cortex, such as resting motor threshold (rMT) and motor evoked potential (MEP) latency, predict the behavioural performance of karate athletes in the response time (RT) test. Twenty-five male karate athletes (24.9 ± 4.9 years) and 25 matched non-athletes (26.2 ± 4.5 years) were recruited. Using TMS, we investigated cortico-spinal system excitability. Compared with controls, the athletes showed faster RT (p rMT (p rMT (p rMT and the shorter MEP latency observed in athletes support the effects of training in determining specific brain organizations to meet specific sport challenges.

  4. THE EFFECT OF SPORT COMPETITION ON SALIVARY STEROIDS IN AMATEUR FEMALE KARATE ATHLETES

    Directory of Open Access Journals (Sweden)

    Mohammad Ali Azarbayjani

    2010-06-01

    Full Text Available The purpose of present study was to investigate the impact of repeated competition on salivary cortisol and DHEA-S in amateur women karate athletes. We recruited 20 young elite female karate fighters [height 158 ± 7 cm (mean ± S.D., weight 59.5 ± 10.9 kg, age 21.1 ± 3.0 years], who were placed first till fourth in the Iranian championship tournament. Five ml of unstimulated whole saliva was collected 30-min before and 5 - min after first and last match in competition and analyzed for cortisol and DHEA-S concentrations. The results showed that participation in competition resulted in significantly increased saliva cortisol level (p 0.05. Significant differences insalivary steroids were not different between winners and losers (p > 0.05. The results of present study show that salivary cortisol concentration is a suitable index for showing competing stress.

  5. [Competitive karate and the risk of HIV infection--review, risk analysis and risk minimizing strategies].

    Science.gov (United States)

    Müller-Rath, R; Mumme, T; Miltner, O; Skobel, E

    2004-03-01

    Bleeding facial injuries are not uncommon in competitive karate. Nevertheless, the risk of an infection with HIV is extremely low. Guidelines about the prevention of HIV infections are presented. Especially in contact sports and martial arts the athletes, judges and staff have to recognize and employ these recommendations. Bleeding wounds of the hands due to contact with the opponents teeth can be minimized by fist padding.

  6. Effect of sensory stimulation on salivary IgA secretion rate in karate players

    OpenAIRE

    Baralic, I; MILETIC, I; Djordjevic, B.; Terzic, T.; S Radojevic-Skodric; Nikolic, G

    2010-01-01

    Objectives: Secretory IgA is predominant immunoglobulin in secretions of the mucosal immune system. Low concentration of salivary IgA is associated with a higher risk of respiratory tract infections episodes in athletes during the training season. The purpose of this study was to determine whether orange-flavored whey based drink has beneficial effect on level of IgA in saliva after the training. Methods: Twenty healthy, young karate players participated in this study. They were divided into ...

  7. Idiosyncratic description of anger states in skilled Spanish karate athletes : an application of the IZOF model

    OpenAIRE

    Ruiz, Montse C.

    2004-01-01

    This study examined content and intensity of anger prior to, during, and after best ever and worst ever performances in 43 high-level Spanish karate athletes using individualized anger profiling. Optimal and dysfunctional anger intensities were assessed using a modified version of Borg’s Category Ratio (CR-10) scale. Anger profiling was supplemented with positive and negative emotion profiling. As expected, content of anger descriptors was highly idiosyncratic. Moreover, great variability in ...

  8. Metodika tréninku sportovního zápasu v karate

    OpenAIRE

    BENÍŠEK, Petr

    2017-01-01

    Title: Methodology training in sports matches in karate Objectives: The main aim of this work is to create a model of development of movement skills and special skills and knowledge of of tactics needed to manage difficult situations in sports match. Methods: In our thesiswe used a method of analysis and study of documents, historical method and the method of compilation and comparison. The method of analysis was applied in the analysis of various aspects of discipline kumite and method of co...

  9. DEVELOPMENT OF A SPORTS SPECIFIC AEROBIC CAPACITY TEST FOR KARATE - A PILOT STUDY

    Directory of Open Access Journals (Sweden)

    David Nunan

    2006-07-01

    Full Text Available The purpose of the study was to develop an aerobic fitness assessment test for competitive Karate practitioners and describe the preliminary findings. Five well-trained, competitive Karate practitioners participated in this study. A protocol simulating common attack strikes used in competition Karate sparring was developed from video analysis. In addition, pilot testing established a specific sequence of strikes and timings to be used in the test. The time to perform the strike sequence remained the same, whilst the time between strike sequence performances was progressively reduced. The aim of the test was to increase intensity of exercise through a decrease in recovery. On two separate occasions, absolute and relative peak oxygen uptake (VO2peak, peak ventilation (VEpeak, maximum heart rate (HRM, and time to exhaustion (TE obtained during the test were recorded. Subjective feedback provided by the participants was positive in that participants felt the test accurately simulated actions of a competitive sparring situation, and as a result athletes felt more motivated to perform well on this test. There was no significant between test difference in absolute VO2peak, relative VO2peak, HRM and TE (p > 0.05, indicating a potentially high reproducibility with the new test for these variables (test 1-test 2 difference of 0.04 L·min-1, 1 ml·kg-1·min-1, -3 beats·min-1, and 28 s; respectively. However, VEpeak displayed potentially less reproducibility due to a significant difference observed between tests (test 1- test 2 difference of -2.8 L·min-1, p < 0.05. There was a significant relationship between TE and relative VO2peak (R2 = 0.77, p < 0.001. Further developments to the test will need to address issues with work rate/force output assessment/monitoring. The new test accurately simulates the actions of competitive Karate sparring

  10. The Development of Hi-Speed Punching System Using A Couple of Rotating Bodies

    Institute of Scientific and Technical Information of China (English)

    Shinichi; Taya; Keiichi; Shimizu

    2002-01-01

    Punched steel sheets (metal sheets or foils) as thi n as 0.1mm are quite useful in the field of filters and various precision instrume nts. Thus, we have to develop more accurate and speedy techniques for punching t hin sheets. The traditional punching method uses an up-down pressing motion of a punch or a die on a strip of metal. The efficiency of this method is determine d by the speed of the motion. In the case of punching a sequence of tiny holes w ith a few millimeters' interval, the speed of feeding...

  11. A Multimodal Dataset for the Analysis of Movement Qualities in Karate Martial Art

    Directory of Open Access Journals (Sweden)

    Ksenia Kolykhalova

    2015-11-01

    Full Text Available A multimodal dataset is presented, which has been collected for analyzing and measuring the quality of movement performed during sport activities. Martial arts (namely karate are taken as test-beds for investigation. Karate encompasses predefined sequences of movements (“katas” that can be carried out with different qualities, e.g., by performers at different skill levels (highly vs. poorly skilled.The experimental setup and method are described. The dataset is composed of motion capture (MoCap data, synchronized with video and audio recordings, of several participants with different levels of experience. The raw MoCap data are independent of any particular post-processing algorithm and can be used for other research purposes. In the second part of the paper, a set of measures is proposed to evaluate a kata performance. They are based on the geometrical and kinematic features, such as posture correctness and synchronization between limbs. and were chosen according to karate experts’ opinion.

  12. Acute injuries in soccer, ice hockey, volleyball, basketball, judo, and karate: analysis of national registry data.

    Science.gov (United States)

    Kujala, U M; Taimela, S; Antti-Poika, I; Orava, S; Tuominen, R; Myllynen, P

    1995-12-02

    To determine the acute injury profile in each of six sports and compare the injury rates between the sports. Analysis of national sports injury insurance registry data. Finland during 1987-91. 621,691 person years of exposure among participants in soccer, ice hockey, volleyball, basketball, judo, or karate. Acute sports injuries requiring medical treatment and reported to the insurance company on structured forms by the patients and their doctors. 54,186 sports injuries were recorded. Injury rates were low in athletes aged under 15, while 20-24 year olds had the highest rates. Differences in injury rates between the sports were minor in this adult age group. Overall injury rates were higher in sports entailing more frequent and powerful body contact. Each sport had a specific injury profile. Fractures and dental injuries were most common in ice hockey and karate and least frequent in volleyball. Knee injuries were the most common cause of permanent disability. Based on the defined injury profiles in the different sports it is recommended that sports specific preventive measures should be employed to decrease the number of violent contacts between athletes, including improved game rules supported by careful refereeing. To prevent dental injuries the wearing of mouth guards should be encouraged, especially in ice hockey, karate, and basketball.

  13. Malignant conjunctival T cell lymphoma diagnosed by punch biopsy as a primary manifestation of systemic cancer

    Directory of Open Access Journals (Sweden)

    Isola V

    2012-05-01

    Full Text Available Vincenzo Isola,1 Danilo Mazzacane,1 Noemi Defelice,1 Antonio D’Amico,1 Laura Dezza,2 Antonio Marti,3 Alfredo Pece,1,41Department of Ophthalmology, Melegnano Hospital, 2Oncology Service, 3Department of Radiology, 4Fondazione Retina 3000, Milan, ItalyAbstract: This report documents a case of T cell lymphoma manifesting only with a conjunctival mass. A 67-year-old man underwent a diagnostic punch biopsy, histopathological examination, and immunohistochemical study for a pink-yellow colored mass infiltrating the bulbar conjunctiva in the lower fornix of the eyelid. A biopsy specimen of the conjunctival mass was found histopathologically to be a malignant T cell lymphoma. Systemic involvement was diagnosed within four weeks after the initial diagnosis by computed tomography, showing evidence of extension at the level of the ethmoidal cells, optic nerve, periorbital tissue, and pancreas. T cell lymphoma of the conjunctiva as a primary manifestation of systemic cancer is an uncommon entity. Punch biopsy may be the first diagnostic pathway useful to initiate a search for systemic involvement of a malignant lymphoid tumor of T cell lineage.Keywords: conjunctiva, cancer, T cell lymphoma, biopsy

  14. O combate subtrativo: a espiritualidade do esvaziamento como norte da filosofia corporal no Karate-Do The subtractive fight: the spirituality of the empty hands method as the north of the body philosophy in Karate-Do

    Directory of Open Access Journals (Sweden)

    Cristiano Roque Antunes Barreira

    2008-01-01

    Full Text Available O karate é uma técnica de combate sem armas que, sustentada por uma antiga tradição, tem como seu principal objetivo a formação do caráter do praticante. A compreensão da visão de mundo na qual o karate nasceu e se desenvolveu é debitária de uma dinâmica espiritual e psicológica singular cujo conhecimento é imprescindível para apreendê-la. O objetivo desta pesquisa é analisar o karate por meio de sua espiritualidade, já que, junto aos textos fundamentais de sua tradição recente, ela é tida como a essência presente em todas as dimensões da expressão da arte. Para tanto, vale-se de uma metodologia historiográfica de perspectiva fenomenológica. Karate-do veicula a espiritualidade do esvaziamento como norte de sua filosofia corporal. Temas com linhas fronteiriças tênues entre si são analisados pela perspectiva de tal espiritualidade. A abrangência desta dinâmica corresponde a um combate subtrativo visando uma apreensão fluida e intutitiva da realidade.Karate is a fight practice that does not make use of weapons. It is based on old traditions and its main aim is to develop a sense of personality in the practitioner. Karate originated from unique spiritual and psychological dynamics, which are of utmost importance for the full understanding of this practice. The objective of this research is to analyze karate-do by means of its spirituality. This is because, together with the fundamental texts about the recent tradition of this fight, spirituality is considered to be the essence present in all dimensions of the artistic expression of karate. To this end, the historiographical methodology of phenomenological perspective was employed in this study. Karate-do has the spirituality of the empty hands method as the north of its body philosophy. Themes with blurred borders are analyzed from this spiritual point of view herein. This dynamics includes the subtractive fight, aiming at the fluid and intuitive understanding of

  15. Punching strength of reinforced concrete flat slabs without shear reinforcement

    Directory of Open Access Journals (Sweden)

    P. V. P. Sacramento

    Full Text Available Punching strength is a critical point in the design of flat slabs and due to the lack of a theoretical method capable of explaining this phenomenon, empirical formulations presented by codes of practice are still the most used method to check the bearing capacity of slab-column connections. This paper discusses relevant aspects of the development of flat slabs, the factors that influence the punching resistance of slabs without shear reinforcement and makes comparisons between the experimental results organized in a database with 74 slabs carefully selected with theoretical results using the recommendations of ACI 318, EUROCODE 2 and NBR 6118 and also through the Critical Shear Crack Theory, presented by Muttoni (2008 and incorporated the new fib Model Code (2010.

  16. An Incursion on Punching of Reinforced Concrete Flat Slabs

    OpenAIRE

    2009-01-01

    Starting from the early 60s continuous studies have been made regarding punching of concrete flat slabs. The evolution of technology and calculus systems influenced this engineering branch. Nowadays is possible to account in structural analysis all the non-linear behaviour of reinforced and prestressed concrete and to get the most close structural response in comparison with the real behaviour. As a controversy matter, several tests and theories have been developed. Nowadays researchers try t...

  17. Characterization of Rubbers from Spherical Punch - Plate Indentation Tests

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    Florina Carmen Ciornei

    2016-12-01

    Full Text Available Rubber plates with different compositions and hardness were tested by continuous indentation, using a spherical punch and hysteretic phenomenon was evidenced. The experimental data interpolation with polynomial functions is accurate and permits estimation of the lost work during loading cycles. The interpolation by power law functions is more convenient by using less parameters and having a form accepted in literature. From the rubbers tested, two were considered to present good damping properties.

  18. 浅析空手道组手技术动作特征%On Hand Technique Features of Karate

    Institute of Scientific and Technical Information of China (English)

    董刚

    2015-01-01

    文章运用文献资料法、观察法、实践法、归纳分析法等研究方法,以空手道组手技术动作为研究对象,通过对空手道竞赛规则的解读、技术的研判,总结归纳出空手道组手技术动作特征为:控制是核心;速度是关键。%With the methods of literature, observation, practice and inductive analysis, the paper takes karate hand technique as the study object, through the paraphrase of karate rules, technique judge, to sum the characteristics of karate hand technique:the core is controlling and key point is the speed.

  19. Oxygen uptake, heartrate and blood lactate responses to the Chito-Ryu Seisan kata in skilled karate practitioners.

    Science.gov (United States)

    Zehr, E P; Sale, D G

    1993-07-01

    To evaluate the efficacy of Seisan kata as an aerobic power training mode, four male (28.5 +/- 4.2 y) Chito-Ryu karate black belt practitioners did kata continuously for 10 min. In separate sessions the kata (formal, organized movement sequences) were done at rates of 1 (PACE) and 2 (FAST) kata "cycles" per minute. Heartrate (HR) and VO2 were monitored continuously during the sessions. VO2 during the PACE and FAST sessions averaged 73 +/- 3 and 94 +/- 2% of leg cycling VO2peak, respectively. The corresponding HRs were 93 +/- 6 and 101 +/- 3% of HRmax (leg cycle test). PACE and FAST post-exercise blood lactates were 12 +/- 4 and 22 +/- 6%, respectively, of the maximal leg cycle test values. These data indicate that karate kata can be used as an effective and specific means for training aerobic power in karate practitioners.

  20. The unity of training, education and health of preschool children in the process of training in karate

    Directory of Open Access Journals (Sweden)

    Bodnar Ivanna Romanovna

    2011-10-01

    Full Text Available The literature were analyzed and syntheses. Theoretically proved the possibility of solving complex educational, recreational and educational objectives of physical education of children by means of karate. Found that the use of breathing exercises, exercises of sports and dance character helps to improve physical and mental development of children. It is proved that karate training improves the cardiovascular and respiratory systems, blood system and contribute to the formation of a correct posture, hardening, increase the level of coordination, flexibility, strength and speed.

  1. Influence of Clearance and Punch Velocity on the Quality of Pure Thin Copper Sheets Blanked Parts

    Science.gov (United States)

    Zakariya Lubis, Didin; Mahardika, Muslim

    2016-11-01

    Research on the influence of clearance and punch velocity to determine the quality of the punched edge were conducted. This study uses pure copper sheet material with the clearance variation of 2.5, 5, 7.5 and 10%. Punch velocity is based on the ability of about Micro Punch CNC machine which is 100 and 2600 mm/min. At highest speed with a clearance of 2.5%, sheared zone is of about 395 pm or 79% of the material thickness. It can be concluded that the punch velocity gives positive influence on the sheared zone in copper. Basically the ideal outcome of the sheared edge of punching result is having rollover and small burr and contain at least 75% of the shear zone. This can be achieved with a clearance of 2.5%.

  2. Development of new shaped punch to predict scale-up issue in tableting process.

    Science.gov (United States)

    Aoki, Shigeru; Uchiyama, Jumpei; Ito, Manabu

    2014-01-01

    Scale-up issues in the tableting process, such as capping, sticking, or differences in tablet thickness, are often observed at the commercial production scale. A new shaped punch, named the size adjusted for scale-up (SAS) punch, was created to estimate scale-up issues seen between laboratory scale and commercial scale tableting processes. The SAS punch's head shape was designed to replicate the total compression time of a laboratory tableting machine to that of a commercial tableting machine. Three different lubricated blends were compressed into tablets using a laboratory tableting machine equipped with SAS punches, and any differences in tablet thickness or capping phenomenon were observed. It was found that the new shaped punch could be used to replicate scale-up issues observed in the commercial tableting machine. The SAS punch was shown to be a useful tool to estimate scale-up issues in the tableting process. © 2013 Wiley Periodicals, Inc. and the American Pharmacists Association.

  3. A Reliability Accelerated Test of High-speed Punch Based on Failure Analysis

    Directory of Open Access Journals (Sweden)

    Chen Lan

    2016-01-01

    Full Text Available By analyzing the maintainability data of a certain high-speed punch, its main fault modes, such as oil/gas parts damage, parts damage and leakages, were identified. According to the fault signal measurability and the accelerated failure mechanism, the content and scheme of a reliability accelerated test (RAT were planned specifically, which was partly verified by some tests on a high-speed punch. This paper provides a basis for the RAT of high-speed punch.

  4. Studying the relationship between leadership style of coaches and sportsmanship commitment of athletes (A case study of professional athletes in I.R. I. Karate Super League

    Directory of Open Access Journals (Sweden)

    Shafiee Shahram

    2016-06-01

    Full Text Available Purpose: Today, when a group of people trying to reach the goal, manager and leader usually undertake the responsibility of the group. Coach renders influence on team members, while athletes work hard to achieve team goals. The purpose of the present study is relationship between leadership styles of coaches and sports actions of karate athletes. Material: The present study involves all active athletes of Super League karate in 91-92 season (N=100. The statistical sample was equal to statistical population (N=n. In order to collect information we used leadership style questionnaire Bos and Avlio (MLQ and questionnaire of Scanlan & et al (SCMS. Internal validity questionnaire was approved by university professors and its reliability - by Cronbach's alpha test 0.86, and 0.79. Also for data analysis we used descriptive indicators of mean and standard deviation. Preliminary analysis of data proved normaldistribution by Kolmogorov-Smirnov test. And then, we used measurements by Pearson, Spearman, Mann-Whitney U, Wilcoxon T, Friedman correlation coefficient of significance level (P<0.05. Results: there are significant differences between athletes’ results and styles of leadership. There is significant correlation between the results with style Attraction (0.000, Idealized Influence (0.000, Inspirational (0.001, Intellectual stimulation (0.007, Individualized consideration (0.017, Exception Active (0.008 and Laissez-faire (0.041 (P< 0.05. Conclusions: for increased of athletes' results coach should use style Attraction, Idealized Influence , Inspirational , Intellectual stimulation , Individualized consideration, Exception Active and if coach wants to see success of his athletes at athletic fields he should comply the applied styles with sportsmen’s results.

  5. Anger in Adolescent Boy Athletes: a Comparison among Judo, Karate, Swimming and Non Athletes

    OpenAIRE

    Mohammad-Ali Mansournia; Homayoun Amini; Sara Lotfian; Vahid Ziaee; Amir-Hossein Memari

    2012-01-01

    Objective: Karate and judo are originally Japanese martial arts which may have different influences on adolescents’ behavior. This study was conducted to examine the total anger rate and its subscale-reactive anger, instrumental anger, and anger control-rates in young karateka and judoka.Methods: A cross-sectional study was carried out in 11 to 19-year old boys. Adolescents included in the study were judoka (n=70), karateka (n=66), swimmers (n=59), and non athletes (n=96). One stage cluster s...

  6. Newly developed surface modification punches treated with alloying techniques reduce sticking during the manufacture of ibuprofen tablets.

    Science.gov (United States)

    Uchimoto, Takeaki; Iwao, Yasunori; Yamamoto, Tatsuya; Sawaguchi, Kazuo; Moriuchi, Toshiaki; Noguchi, Shuji; Itai, Shigeru

    2013-01-30

    Sticking is a serious problem during the manufacturing process of tablets. In order to prevent this, we used alloying techniques to prepare metal hardening (MH) and electron beam processing infinite product (EIP) punches with rougher asperity of surfaces than a hard chrome plated (HCr) punch. This study evaluated the anti-sticking properties of the MH and EIP punches compared to the HCr punch, using quantitative scraper force measurements and visual observation, for the manufacture of ibuprofen (Ibu) tablets. The anti-sticking property mechanism of the MH and EIP punches was also confirmed. The amount of Ibu adhering to the punch surface was 66% lower for the MH and EIP punches than for the HCr punch, suggesting a superior anti-sticking property of the MH and EIP punches. The scraper force of the HCr punch was 2.60-4.28 N, while that for the MH and EIP punches was 0.54-1.64 N and 0.42-1.33 N, respectively. The result of X-ray photoelectron spectroscopy suggested that the anti-sticking property of the EIP punch was attributed by the rough asperity as well as existence of low friction substance carbon fluoride on the punch surface. In conclusion, this study provides new evidence for the mechanisms behind the superior anti-sticking property of the MH and EIP punches. Copyright © 2013 Elsevier B.V. All rights reserved.

  7. 日本空手道与中国武术比较研究%A Comparative Study of Japanese Karate and Chinese Martial Arts

    Institute of Scientific and Technical Information of China (English)

    韩惠

    2014-01-01

    A comparative study of Chinese wushu and the Japanese karate was made. The martial arts is more abundant and complex in the content and system than karate, covering all the technology of the karate classes technically, and is more deep and broad in cultural than karate carries, but there is less specific and clear than karate. Karate dissemination and promotion in the world is worth of learning, especially karate class/grade system and etiquette.%对中国武术和日本空手道进行了比较研究。武术较空手道在内容和体系更为丰富和复杂,在技术层面上包涵了空手道的所有技术类别;文化层面上武术较空手道所涵载更为深邃和宽泛,但没有空手道具体和明确;空手道在国际上的传播和推广值得中国武术人学习和借鉴,尤其是空手道的级位/段位制度和礼仪。

  8. Evolution and evaluation of autologous mini punch grafting in vitiligo

    Directory of Open Access Journals (Sweden)

    Lahiri Koushik

    2009-01-01

    Full Text Available Vitiligo is a result of disrupted epidermal melanization with an undecided etiology and incompletely understood pathogenesis. Various treatment options have resulted in various degrees of success. Various surgical modalities and transplantation techniques have evolved during the last few decades. Of them, miniature punch grafting (PG has established its place as the easiest, fastest, and least expensive method. Various aspects of this particular procedure have been discussed here. The historical perspective, the instruments, evolution of mini grafting down the ages, and the methodology, advantages, and disadvantages have been discussed. A detailed discussion on the topic along with a review of relevant literature has been provided in this article.

  9. Shear Punch Testing of BOR-60 Irradiated TEM Specimens

    Energy Technology Data Exchange (ETDEWEB)

    Saleh, Tarik A. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Quintana, Matthew Estevan [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Romero, Tobias J. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2017-06-13

    As a part of the project “High Fidelity Ion Beam Simulation of High Dose Neutron Irradiation” an Integrated Research Program (IRP) project from the U.S. Department of Energy, Nuclear Energy University Programs (NEUP), TEM geometry samples of ferritic cladding alloys, Ni based super alloys and model alloys were irradiated in the BOR-60 reactor to ~16 dpa at ~370°C and ~400°C. Samples were sent to Los Alamos National Laboratory and subjected to shear punch testing. This report presents the results from this testing.

  10. Current Situations and Development Strategies of Karate in China%我国空手道开展现状与发展战略

    Institute of Scientific and Technical Information of China (English)

    庞俊鹏

    2016-01-01

    Karate is a fighting movement for fitness and self-defense .It is comprised of competitive karate ,karate for all , and school karate .The karate management departments in China should form the guiding ideology and policies in terms of the national ,international and scientific views .It is important to improve the association rules ,arouse the enthusiasm of the members ,balance the relationships of competitive karate ,school karate ,and karate for all ,improve the international management systems ,and strengthen the men's karate .%我国空手道主管部门应从国家视野、国际视野、科学视野的维度出发 ,在新的时期 ,制订空手道发展的工作指导思想和方针.竞技空手道、大众空手道、学校空手道都是空手道的组成部分 ,应均衡发展.完善协会章程 ,调动会员单位积极性 ,协调竞技空手道、学校空手道、大众空手道之间关系 ,健全国家队管理体制 ,打破女强男弱的现状.竞技空手道带动大众空手道 ,大众空手道带动学校空手道 ,唯有如此 ,我国空手道运动才能健康可持续发展.

  11. Characteristics of intercommunications of sport results and indexes of technique and tactic of competition activity of highly qualified sportsmen of karate-do.

    Directory of Open Access Journals (Sweden)

    Baranov M.V.

    2011-02-01

    Full Text Available The effectiveness of the individualization of technical and tactical training of athletes of karate-offensive, maneuver, and expectant management style duels. By analyzing the competitive activities of representatives of these styles, world and European champion 2007-2009 classification features were identified techniques and tactics of karate-do and established differences in their use of technical-tactical vehicles. Results of correlation analysis of the relationship of sports results and performance of technical and tactical actions of these athletes can determine the direction of individualization of training in different styles of karate fights.

  12. Noise reduction of punch press mechanical clutch engagement

    Institute of Scientific and Technical Information of China (English)

    CHEN Wei; SUN Chang-qing; LI Yun-liang

    2005-01-01

    Among the noises of the punch press, blanking noise and engaging noise of the clutch should be paid most attention to. The latter is generated by the engagement impacts of the rotating key on the spline bush. In order to absorb the pressing energy and reduce the noise radiated, polyurethane cushions were added to the spline bush keyways and the clutch running noise reduction has reached 10.7 dB(A). Considering such factors as the running characteristics of the punch press clutch, the demand for cushioning performance and the demand of the clutch temperature field for damping materials, the temperature field of the rigid clutch spline bush was simulated to find out whether the temperature of polyurethane go beyond its critical application temperature, using the finite element method. According to the characteristic that the deforming memory alloy can restore the remembered shape with the temperature rising, the actual temperature of the spline bush was measured. Consequently, the theoretical temperature turned out to be close to the measured temperature.

  13. Sports can protect dynamic visual acuity from aging: A study with young and older judo and karate martial arts athletes.

    Science.gov (United States)

    Muiños, Mónica; Ballesteros, Soledad

    2015-08-01

    A major topic of current research in aging has been to investigate ways to promote healthy aging and neuroplasticity in order to counteract perceptual and cognitive declines. The aim of the present study was to investigate the benefits of intensive, sustained judo and karate martial arts training in young and older athletes and nonathletes of the same age for attenuating age-related dynamic visual acuity (DVA) decline. As a target, we used a moving stimulus similar to a Landolt ring that moved horizontally, vertically, or obliquely across the screen at three possible contrasts and three different speeds. The results indicated that (1) athletes had better DVA than nonathletes; (2) the older adult groups showed a larger oblique effect than the younger groups, regardless of whether or not they practiced a martial art; and (3) age modulated the results of sport under the high-speed condition: The DVA of young karate athletes was superior to that of nonathletes, while both judo and karate older athletes showed better DVA than did sedentary older adults. These findings suggest that in older adults, the practice of a martial art in general, rather than the practice of a particular type of martial art, is the crucial thing. We concluded that the sustained practice of a martial art such as judo or karate attenuates the decline of DVA, suggesting neuroplasticity in the aging human brain.

  14. The Effect of Karate Practice on Self-Esteem in Young Adults with Visual Impairment: A Case Study

    Science.gov (United States)

    Qasim, Samir; Ravenscroft, John; Sproule, John

    2014-01-01

    Previous research has not examined the potential relationship between physical activity interventions and psychological domains of young adults with visual impairment (VI). This study aimed to investigate whether karate practice improves the self-esteem of young adults with VI. A secondary aim of this study was to explore the exercise and…

  15. Effect of a Karate Competition on Urinary Excretion of Proteins with High Molecular Weight (Glomerular proteinuria in Young Male Karatekas

    Directory of Open Access Journals (Sweden)

    Mohammad Ali Kohanpour

    Full Text Available The aim of the present study was to investigate the effect of a karate competition on the urinary excretion of proteins with high molecular weight and urinary creatinine to protein ratio in young male karate as. Ten young male karate as with the age range of 25±2.63 years, height of 175.7±5.15 cm and weight of 71.5±8.61 kg voluntarily took part in this study and participated in a karate competition. Before and 20 min after the competition, the urinary sample was collected and the levels of albumin, total protein, creatinine and urinary creatinine to protein ratio were measured and calculated. To investigate the changes of urinary proteins caused by competition, the student’s t-test for dependent groups was used. Glomerular proteinuria increased after the competition; however, it was only significant for albumin and creatinine (p = 0.009 and p = 0.018, respectively. Although total protein increased after the competition, it was not statistically significant (p = 0.184 and the creatinine to protein ratio did not make any significant changes (p = 0.532. Creatinine to protein ratio was less than 0.1 for the samples before and after the competition; therefore, proteinuria had a physiological range which was very far from nephritic and pathological proteinuria ranges; thus, it was not harmful.

  16. Nutrient intake of highly competitive male and female collegiate karate players.

    Science.gov (United States)

    Teshima, Kaori; Imamura, Hiroyuki; Yoshimura, Yoshitaka; Nishimura, Seiji; Miyamoto, Noriko; Yamauchi, Yoichi; Hori, Hitoshi; Moriwaki, Chinatsu; Shirota, Tomoko

    2002-07-01

    Nutrient intake of 29 male (M Group) and 16 female (F Group) highly competitive collegiate karate players were compared. The results were also compared with the daily energy expenditure (DEE), Japanese recommended dietary allowances (RDAs) or adequate dietary intakes (ADIs). Dietary information was collected using a 3-weekday diet record. Although the M Group showed significantly higher mean %RDAs or %ADIs in iron, vitamin B1, phosphorus, magnesium, and sodium than the F Group, many of the mean %RDAs or %ADIs were below RDAs or ADIs in both groups. The subjects who skipped meals tended to show lower mean %DEE, Japanese %RDAs or %ADIs in minerals and vitamins than the subjects who did not skip in both M and F Groups. The consumption of green and other vegetables and milk and dairy products in both M and F Groups were low. It is concluded that the male and female highly competitive karate players studied in the present study may be at risk of sub-optimal nutrient intake, which increases the potential for nutrient deficiency. The subjects were advised not to skip meals, and to consume a balanced high-carbohydrate, moderate-protein, low-fat diet with increasing green and other vegetables and milk and dairy products to increase mineral, vitamin and dietary fiber intakes.

  17. Optimisation development coordinated young karate sportsmen abilities at the stage of preliminary base training

    Directory of Open Access Journals (Sweden)

    Anatoliy Rovnyy

    2015-06-01

    Full Text Available Purpose: substantiation methodise perfection development of young karate sportsmen coordinated abilities at the stage of preliminary base training. Material and Methods: tested results of 57 young sportsmen divided in to 2 groups of equal preparatory level: control group (n=27 and experimental group (n=30 vestibular stability was tested by special tests and Romberg’s (station test. Results: the results of vestibular stability testing were established as the ground of coordinated young sportsmen abilities. Initial indices of statical and dynamic equilibrium of control group didn’t differ from experimental group. Introduction of program of optimization training progress promoted considerable increasing indices statical and dynamic equilibrium. The development of these abilities provided more effective forming complicated coordinated technical actions of young karate sportsmen. Conclusion: worker out programme promoted increasing the level of vestibular stability, which expresses in motive and vegetative improvements. It is just because of right forming moving hobbits of long conservation (keeping equilibrium body is the ground regulation vestibular apparatus (organs of complicated sportsmen action.

  18. Hot punching of high-aspect-ratio 3D polymeric microstructures for drug delivery

    DEFF Research Database (Denmark)

    Petersen, Ritika Singh; Keller, Stephan Sylvest; Boisen, Anja

    2015-01-01

    Hot punching: a highly versatile method of fabricating high-aspect-ratio 3D microstructures for drug delivery with good replication fidelity and yield.......Hot punching: a highly versatile method of fabricating high-aspect-ratio 3D microstructures for drug delivery with good replication fidelity and yield....

  19. Three-dimensional numerical simulation on plastic damage in small punch specimen of Zirconium

    Energy Technology Data Exchange (ETDEWEB)

    Hu Ruomei, E-mail: huruomei2008@sina.co [School of Mechanical and Power Engineering, Nanjing University of Technology, Nanjing 210009 (China); Ling Xiang, E-mail: xling@njut.edu.c [School of Mechanical and Power Engineering, Nanjing University of Technology, Nanjing 210009 (China)

    2009-12-15

    Small punch test (SPT) technique was used to evaluate the mechanical properties of Zirconium in this paper. The dimension of the disc specimen is phi 10 x 0.5 mm. Plastic damage in small punch specimen of Zirconium was investigated both experimentally and numerically, because it has great influence on small punch specimen. In order to simulate the plastic damage in the small punch specimen of Zirconium, the 3D finite element model incorporated with Gurson-Tvergaard-Needleman (GTN) plastic damage constitutive equation was established. Void growth and initiation of ductile crack of the small punch specimen were predicted. Results show that damage occurs on the bottom side of the specimen and grows across the specimen until complete failure, which has good agreement with the observation in the experiment.

  20. Hydration swelling characteristics of needle-punched geosynthetic clay liners

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    A series of confined swell tests were conducted on a needle-punched geosynthetic clay liner (GCL)with tap water as the hydration medium. The effects of the static confining stress on the swelling characteristics of GCLs and the hydration time under different confining stresses were explored. Increasing the static confining stress led to: shorter hydration time; smaller final GCL height; less final GCL bulk void ratio; smaller final bentonite moisture content. The confined swell pressure determined for the tested GCL was 82.2 kPa, and the relationships between confining stress, final bulk void ratio (or final GCL height, final bentonite moisture content) were attained through the analyses of the confined swell test results in this study.

  1. Two-Scale Analysis of Honeycombs Indented by Flat Punch

    Science.gov (United States)

    Asada, Takashi; Tanaka, Yuji; Ohno, Nobutada

    The fully implicit incremental homogenization scheme developed by Asada and Ohno (2007) for elastoplastic periodic solids is applied to two-scale analysis of honeycomb blocks subjected to flat punch indentation. To this end, the scheme is rebuilt by introducing half unit cells based on the point-symmetric distributions of stress and strain in unit cells, so that analysis domains in unit cells are reduced by half. Then, by assuming the zigzag and armchair types of cell-arrangements, the two-scale analysis of honeycomb blocks is performed. The corresponding full-scale finite element analysis is also performed to reveal the cell-arrangement dependence of cell deformation in the honeycomb blocks. It is shown that the two-scale analysis is macroscopically successful in spite of microscopic limitations.

  2. Influence of stress factors of firewalking on heart rate frequency and variability of karate sportsmen

    Directory of Open Access Journals (Sweden)

    Dykij B.V.

    2012-12-01

    Full Text Available Influence of passing is studied on burning hot coal on the indexes of frequency of heart-throbs and variability of cardiac rhythm of sportsmen. In procedure of passing on coal took part 4 sportsmen (karate of high qualification aged 20-25 years. All of participants of experiment were healthy and gave the informed consent to participating in research. Found out the increase of frequency of heart-throbs (to 160-180 shots in a minute and change of separate indexes of spectral and statistical analysis of variability of cardiac rhythm. In particular, during passing of VLF grows on 36%, TP goes down on 97%. The changes of these parameters on the preparatory and finishings stages of procedure and distributing of components of spectrum of variability of cardiac rhythm specify on the leading role of psychoemotional factors and higher departments of central nervous system during passing on coal.

  3. 德国Canton公司的Karat Reference 2DC音箱

    Institute of Scientific and Technical Information of China (English)

    顾洎广

    2004-01-01

    Carlton是德国最大、产品最畅销的扬声器制造厂之一。在其成立30周年际.该公司推出了一款标志性的Karat Referernce 2DC音箱系统(如题图).在今年1月美国举办的2004 CES(消费电子产品博览会)上独领风骚。开发这个Hi-end级产品的宗旨是要满足那些听觉极为敏感的顶级发烧友的需求,也想集中体现公司在研究、开发、工程设计和制造工艺方面几十年的经验。

  4. Karat, pulque, and gac: three shining stars in the traditional food galaxy.

    Science.gov (United States)

    Kuhnlein, Harriet V

    2004-11-01

    Karat banana, pulque prepared from Agave species, and gac fruit are three traditional local food items recently studied intensively for their nutrition potential among traditional and indigenous peoples, and are examples of how local food-based strategies can be used to ensure micronutrient nutrition. Successful health promotion and intervention programs emphasizing traditional food systems are few in the international literature, but offer promise in understanding the potential of food-based strategies. Traditional food strategies could be used not only for alleviating malnutrition, but also for developing locally relevant programs for stemming the nutrition transition and preventing chronic disease, particularly among indigenous and traditional peoples who retain knowledge of using food species in their local ecosystems.

  5. Gender Differentiations of Some Anthropological Characteristics of Karate Players--Cadets.

    Science.gov (United States)

    Jukić, Josefina

    2015-07-01

    The research was conducted with the aim of determining gender differentiations of some anthropological characteristics of male and female cadet karate players. To achieve this aim, a group of 10 morphological variables, ten motor tests, five situation motor test and six technical performance evaluation tests was applied. Two hundred and six competing players were measured, of which 105 male and 101 female. The examinees were divided according to weight categories (lower and higher weight categories). Based on the variance analysis and canon discrimination analysis a conclusion can be made: gender differentiations are most strongly expressed in morphological and basic motor area, and significantly less in the area of specific motor abilities and motor knowledge (technical efficiency).

  6. The registration of morphofunctional parameters: its evaluation in children-karate athletes

    Directory of Open Access Journals (Sweden)

    Harold Pérez Soriano

    2010-02-01

    Full Text Available With the development of national and international practice of Karate-Do as a sport of combat in Cuba, and especially when practiced often by children, morphofunctional control is important for athletes, observing the response of the body still in the making during training and competition in a given preparation macrocycle, as negative results (psychological and / or physical can be brought to a wrong direction to achieve a given objective competitive.This research identifies and examines indicators for assessing the morphofunctional development of children, developing athletes in the category 10-11 years (weight, height, reach the arms and legs, heart rate, arterial blood pressure and respiratory rate etc. This allows a better characterization of this sport at an early age and therefore, better health benefit of practitioners in the public interest and national sports.

  7. Anger in Adolescent Boy Athletes: a Comparison among Judo, Karate, Swimming and Non Athletes

    Science.gov (United States)

    Ziaee, Vahid; Lotfian, Sara; Amini, Homayoun; Mansournia, Mohammad-Ali; Memari, Amir-Hossein

    2012-01-01

    Objective Karate and judo are originally Japanese martial arts which may have different influences on adolescents’ behavior. This study was conducted to examine the total anger rate and its subscale-reactive anger, instrumental anger, and anger control-rates in young karateka and judoka. Methods A cross-sectional study was carried out in 11 to 19-year old boys. Adolescents included in the study were judoka (n=70), karateka (n=66), swimmers (n=59), and non athletes (n=96). One stage cluster sampling method was used to select judoka, karateka, and swimmers from sport clubs in Tehran. Students of governmental schools at the same area were chosen as the non-athletes group. The “Adolescent Anger Rating Scale” questionnaire was utilized to assess the anger rate. Findings The mean age of participants was 12.90(±2.06) years. The total anger rates were 45.40 (±5.61) in judoka, 41.53(±5.63) in karateka, 41.19(±5.33) in swimmers, and 45.44 (±8.58) in non athletes. In total anger scale karateka and swimmers had a significantly lower score compared to judoka and non athletes. In instrumental anger subscale the difference was significant just between karateka and non athletes. In reactive anger subscale judoka showed higher scores than swimmers. In anger control subscale the difference was significant between judoka and swimmers and also judoka and karateka. The difference of anger control between karateka and non athletes was significant. Conclusion The findings of this study propose a difference in the anger rate between judoka and karateka. In contrary to the results of previous studies, judo training may have no influence on anger control, while karate training could be beneficial. PMID:23056853

  8. Effect of sensory stimulation on salivary IgA secretion rate in karate players

    Directory of Open Access Journals (Sweden)

    I Baralic

    2010-12-01

    Full Text Available Objectives: Secretory IgA is predominant immunoglobulin in secretions of the mucosal immune system. Low concentration of salivary IgA is associated with a higher risk of respiratory tract infections episodes in athletes during the training season. The purpose of this study was to determine whether orange-flavored whey based drink has beneficial effect on level of IgA in saliva after the training. Methods: Twenty healthy, young karate players participated in this study. They were divided into two groups. One group rinsed a mouth with 20 ml of liquid whey, two times in 30-min period: 15 and 30 min after training. Second group rinsed a mouth with 20 ml of whey based orange flavored soft drink, at the same time. Saliva was collected before the training, just after the training and after application of fluids. Results: We observed decrease in salivary flow after physical activity. The salivary flow was higher after the application of flavored drink compared to salivary flow after the application of whey. The absolute concentration of sIgA and sIgA secretion rate decreased just after exercise compared to pre exercise values. Application of whey elevated sIgA levels on day 1, while application of flavored drink caused increasing in sIgA levels on day 3. In all other cases sIgA level was decreasing even after applied stimuli. Conclusions: The exercise induces decreasing in salivary flow, sIgA absolute concentration and sIgA secretion rate. Application of fluid whey and flavored whey-based drink elevated salivary flow, but had little effect on absolute concentration of sIgA and sIgA secretion rate in young karate players.

  9. Anger in Adolescent Boy Athletes: a Comparison among Judo, Karate, Swimming and Non Athletes.

    Science.gov (United States)

    Ziaee, Vahid; Lotfian, Sara; Amini, Homayoun; Mansournia, Mohammad-Ali; Memari, Amir-Hossein

    2012-03-01

    Karate and judo are originally Japanese martial arts which may have different influences on adolescents' behavior. This study was conducted to examine the total anger rate and its subscale-reactive anger, instrumental anger, and anger control-rates in young karateka and judoka. A cross-sectional study was carried out in 11 to 19-year old boys. Adolescents included in the study were judoka (n=70), karateka (n=66), swimmers (n=59), and non athletes (n=96). One stage cluster sampling method was used to select judoka, karateka, and swimmers from sport clubs in Tehran. Students of governmental schools at the same area were chosen as the non-athletes group. The "Adolescent Anger Rating Scale" questionnaire was utilized to assess the anger rate. The mean age of participants was 12.90(±2.06) years. The total anger rates were 45.40 (±5.61) in judoka, 41.53(±5.63) in karateka, 41.19(±5.33) in swimmers, and 45.44 (±8.58) in non athletes. In total anger scale karateka and swimmers had a significantly lower score compared to judoka and non athletes. In instrumental anger subscale the difference was significant just between karateka and non athletes. In reactive anger subscale judoka showed higher scores than swimmers. In anger control subscale the difference was significant between judoka and swimmers and also judoka and karateka. The difference of anger control between karateka and non athletes was significant. The findings of this study propose a difference in the anger rate between judoka and karateka. In contrary to the results of previous studies, judo training may have no influence on anger control, while karate training could be beneficial.

  10. Anger in Adolescent Boy Athletes: a Comparison Among Judo, Karate, Swimming and Non Athletes

    Directory of Open Access Journals (Sweden)

    Mohammad-Ali Mansournia

    2012-03-01

    Full Text Available Objective: Karate and judo are originally Japanese martial arts which may have different influences on adolescents’ behavior. This study was conducted to examine the total anger rate and its subscale-reactive anger, instrumental anger, and anger control-rates in young karateka and judoka.Methods: A cross-sectional study was carried out in 11 to 19-year old boys. Adolescents included in the study were judoka (n=70, karateka (n=66, swimmers (n=59, and non athletes (n=96. One stage cluster sampling method was used to select judoka, karateka, and swimmers from sport clubs in Tehran. Students of governmental schools at the same area were chosen as the non-athletes group. The “Adolescent Anger Rating Scale” questionnaire was utilized to assess the anger rate.Findings: The mean age of participants was 12.90(±2.06 years. The total anger rates were 45.40 (±5.61 in judoka, 41.53(±5.63 in karateka, 41.19(±5.33 in swimmers, and 45.44 (±8.58 in non athletes. In total anger scale karateka and swimmers had a significantly lower score compared to judoka and non athletes. In instrumental anger subscale the difference was significant just between karateka and non athletes. In reactive anger subscale judoka showed higher scores than swimmers. In anger control subscale the difference was significant between judoka and swimmers and also judoka and karateka. The difference of anger control between karateka and non athletes was significant.Conclusion: The findings of this study propose a difference in the anger rate between judoka and karateka. In contrary to the results of previous studies, judo training may have no influence on anger control, while karate training could be beneficial.

  11. 某种高速冲床外购件的可靠性分析与研究%Analysis and research of purchased parts reliability for certain high-speed punch

    Institute of Scientific and Technical Information of China (English)

    张根保; 陈宥宇; 张会杰; 孙晓丁

    2012-01-01

    为提升高速冲床整体可靠性水平,将所含外购件视为整体,分析了高速冲床外购件对整机影响,建立了高速冲床外购件双重威布尔分段模型,计算时间拐点并检验,分别进行早期失效期、偶然失效期FMEA对比分析,提出了高速冲床外购件关键控制技术.同时,作为共性技术,对其它高速冲压设备外购件可靠性分析与控制具有指导意义.%In order to enhance the entire reliability of high-speed punch, the purchased parts were considered as a whole. The influence of purchased parts on high-speed punch was analyzed. Sectional model involving two Weibull distributions of purchased parts in high-speed punch was established. The calculation and test on inflection point were implemented. The FMEA of the early failure period and the random failure period were compared. And the key control technology on purchased parts of high-speed punch was proposed which is significant in reliability analysis and control of purchased parts in other high-speed punching machines.

  12. Shear Punch Testing on ATR Irradiated MA956 FeCrAl Alloy

    Energy Technology Data Exchange (ETDEWEB)

    Saleh, Tarik A. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Quintana, Matthew Estevan [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Romero, Tobias J. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2017-06-13

    The shear punch testing of irradiated and control MA956 (FeCrAl) Alloy from the NSUF-ATR-UCSB irradiation is presented. This is the first data taken on a new shear punch fixture design to test three 1.5mm punches from each 8mm x 0.5mm Disc Multipurpose Coupon (DMC). Samples were irradiated to 6.1dpa at a temperature of 315°C and 6.2 dpa at 400°C.

  13. High-throughput sequencing of forensic genetic samples using punches of FTA cards with buccal swabs

    DEFF Research Database (Denmark)

    Kampmann, Marie-Louise; Buchard, Anders; Børsting, Claus;

    2016-01-01

    with buccal swabs and compared the results with those obtained with DNA extracted using the EZ1 DNA Investigator Kit. Concordant profiles were obtained for all samples. Our protocol includes simple punch, wash, and PCR steps, reducing cost and hands-on time in the laboratory. Furthermore, it facilitates......Here, we demonstrate that punches from buccal swab samples preserved on FTA cards can be used for high-throughput DNA sequencing, also known as massively parallel sequencing (MPS). We typed 44 reference samples with the HID-Ion AmpliSeq Identity Panel using washed 1.2 mm punches from FTA cards...

  14. Influence of punch radius on elastic modulus of three-point bending tests

    OpenAIRE

    Pengliang Hou; Hongwei Zhao; Zhichao Ma; Shizhong Zhang; Jianping Li; Xiaolong Dong; Yujiao Sun; Zhongwei Zhu

    2016-01-01

    Three-point bending is one of the most common methods of studying the mechanical performance of materials. The influence of punch radius in the measurements is not considered in the previous studies. This article focuses on the influence of the punch radius on the elastic modulus. The experiment is set up to measure the elastic modulus of 6061 aluminum alloy (6061 Al) and copper as the specimens, in which several different radii of punches are used. The maximum bending deflection of the middl...

  15. FEM analysis of springback control with lump-punch penetration after V-bending

    Science.gov (United States)

    Aso, Takayuki; Iizuka, Takashi

    2016-08-01

    In actual manufacturing, some empirical methods such as the bottoming technique are generally used in order to adjust the bend angles of products. However, the problem with this is that it relies on the technique of the engineer. In this study, quantitative springback control by lump-punch penetration after V-bending is investigated with FEM analysis and experimentation. The lump at the punch tip is pushed into a bent section at the final stage of V-bending and stretches the inside surface at the bent section. The method of springback control is suggested based on the deformation state. Then, the suitability of springback control using this mechanism is investigated. It is confirmed that the springback amount is reduced by lump-punch penetration. Accordingly, it is recommended to control springback by sheet forging with a lump punch.

  16. Correlation between shear punch and tensile data for neutron-irradiated aluminum alloys

    Energy Technology Data Exchange (ETDEWEB)

    Hamilton, M.L.; Edwards, D.J. [Pacific Northwest Laboratory, Richland, WA (United States); Toloczko, M.B. [Univ. of California, Santa Barbara, CA (United States)] [and others

    1995-04-01

    This work was performed to determine whether shear punch and tensile data obtained on neutron irradiated aluminum alloys exhibited the same type of relationship as had been seen in other work and to assess the validity of extrapolating the results to proton-irradiated alloys. This work was also meant to be the first of a series of similar test matrices designed to determine whether the shear punch/tensile relationship varied or was the same for different alloy classes.

  17. Punching shear of flat reinforced-concrete s labs under fire conditions

    OpenAIRE

    Smith, Holly Kate Mcleod

    2016-01-01

    This thesis examines punching shear response of reinforced-concrete flat slabs under fire conditions. The shear behaviour of concrete in fire is relatively poorly understood compared to its flexural response. Failures such as the Gretzenbach car park failure in Switzerland (2004) have prompted concerns over the punching shear capacity of flat slabs in fire. The shear behaviour of reinforced-concrete in fire depends on degradation of the individual material properties with te...

  18. The Influence of a Padded Hand Wrap on Punching Force in Elite and Untrained Punchers

    Directory of Open Access Journals (Sweden)

    Andrew J. Galpin

    2015-10-01

    Full Text Available Punching is integral to success in combat sports, making it a frequent activity during practice/training. Improving safety of this activity benefits both the athlete and training partners. This study was designed to 1 test the precision and reliability of a commercially available striking device and 2 assess the influence of a novel padded hand wrap on punching force in elite and untrained punchers. Fourteen male professional boxers and mixed martial artists (PRO; age=29.2±5.6y; height=180.3±9.0cm; mass=87.1±17.9kg, winning %=73.8±13.8%, number of victories via knockout/technical knockout=35.6± 21.9% and 24 untrained male punchers (UNT; 27.6±6.9y, 177.6±18.3cm, 84.3±16.9kg wore a standardized boxing glove and performed 20 maximal punches (4 sets of 5 into a device designed to measure punching force. All participants performed, in a counterbalanced order, 2 sets of 5 with a standardized hand wrap and 2 sets of 5 with the same wrap plus an additional 1.2cm thick cylinder 4g foam-like pad (WRAP placed over the knuckles. PRO produced significantly more punching force than UNT, regardless of condition. Punching force was lower by 12.6% (p<0.05 for PRO and 8.9% (p<0.05 for UNT with WRAP (compared to no WRAP. These findings suggest WRAP significantly reduces punching force, which may be important for long-term safety of the puncher’s hand and/or the person receiving the strike. Keywords: safety, punching, striking, hitting, combat, pad

  19. Performance Assessment of Hard Rock TBM and Rock Boreability Using Punch Penetration Test

    Science.gov (United States)

    Jeong, Ho-Young; Cho, Jung-Woo; Jeon, Seokwon; Rostami, Jamal

    2016-04-01

    Rock indentation tests are often called punch penetration tests and are known to be related to penetration rates of drilling equipment and hard rock tunnel boring machines (TBMs). Various indices determined from analysis of the force-penetration plot generated from indentation tests have been used to represent the drillability, boreability, and brittleness of rocks. However, no standard for the punch penetration test procedure or method for calculating the related indices has been suggested or adopted in the rock mechanics community. This paper introduces new indices based on the punch test to predict the performance of hard rock TBMs. A series of punch tests was performed on rock specimens representing six rock formations in Korea with different dimensions, i.e., the core specimens had different lengths and diameters. Of the indices obtained from the punch tests, the peak load index and mean load index showed good correlations with the cutting forces measured in full-scale linear cutting machine tests on the same rock types. The indices also showed good linear correlations with the ratio of uniaxial strength to Brazilian tensile strength, which indicates the brittleness of rock. The scale effect of using core specimens was investigated, and a preferred dimension for the punch test specimens is proposed. This paper also discusses the results of the punch test and full-scale rock cutting tests using LCM. The results of this study confirm that the proposed indices from the punch tests can be used to provide a reliable prediction of the cutting forces that act on a disc cutter. The estimated cutting forces can then be used for optimization of cutter-head design and performance prediction of hard rock TBMs.

  20. Autologous miniature punch skin grafting in stable vitiligo

    Directory of Open Access Journals (Sweden)

    Savant S

    1992-01-01

    Full Text Available Autologous split thickness miniature punch skin grafting is one of the surgical modes of treatment of stable vitiligo. Out of 87 different sites, of stable vitiligo, occurring in 62 cases, (32 focal, 22 segmental and 8 generalised 75 sites showed total repigmentation with excellent cosmetic colour match. Out of the 62 cases, 46 cases who were treated postsurgically with PUVA therapy repigmented within 2 ½ to 3 months, 10 cases, who received no treatment postsurgically repigmented by 3 ½ to 6 months. In addition 6 cases in whom no treatment was given postsurgically had to be given PUVA therapy 3 months after surgery as there was poor repigmentation. The complications seen were graft rejection due to improper immobilization in 6 cases, graft rejection due to secondary infection in 1, contact allergic dermatitis to framycetin in 3, and reactivation of vitiligo in 2. Side effects seen were cobblestoning in 32, sinking pits in 12, variegated appearance in 4, and superficial scarring at donor site in all 62 cases.

  1. Abnormal Failure Analysis of H13 Punches in Steel Squeeze Casting Process

    Institute of Scientific and Technical Information of China (English)

    ZHANG Mi-lan; XING Shu-ming; XIN Qiao; XIAO Li-ming; GOU Jun-nian; WU Xia-ling

    2008-01-01

    In steel squeeze casting process, the working condition of a punch was very rigorous. The abnormal failure models of an H13 punch, such as plastic rubbed damnification, could not be avoided easily. Based on the analysis of the flow stress and the friction-shearing stress of an H13 punch in steel squeeze casting process, the following results were obtained: if the flow stress of an H13 punch was smaller than its friction-shearing stress, these abnormal failures could not be avoided; and if there were some protection measures that enable the flow stress to have a greater value than its friction-shearing one, the abnormal failures would not occur. In the production of 45# steel valves and eatenary system components, the flow stress of a lateral H13 punch without any protection measure was about 29 MPa and its friction-shearing stress.was about 51 MPa, then, the abnormal failures occurred: however, when the protection measures of the punch enabled its working temperature to have a value below 682 "C, its flow stress was greater than its friction-shearing stress, and the abnormal failures were avoided.

  2. Influence of punch radius on elastic modulus of three-point bending tests

    Directory of Open Access Journals (Sweden)

    Pengliang Hou

    2016-05-01

    Full Text Available Three-point bending is one of the most common methods of studying the mechanical performance of materials. The influence of punch radius in the measurements is not considered in the previous studies. This article focuses on the influence of the punch radius on the elastic modulus. The experiment is set up to measure the elastic modulus of 6061 aluminum alloy (6061 Al and copper as the specimens, in which several different radii of punches are used. The maximum bending deflection of the middle point is 1.0 mm. Moreover, a finite element simulation is constructed to simulate the bending process of specimen, which is consistent with the experimental results. According to the results, the punch radius has affected the measurement of elastic modulus, and the elastic modulus, the contact length, and the peak load increase with the increase in the punch radius. Combining the experiment result (E1 and the standard result (E3 of Changchun research institute for testing machines, it is found that the appropriate punch radius is in the range from 2.5 to 3.0 mm for this experiment, when the specimen’s dimension is 30.0 mm × 6.0 mm × 1.0 mm.

  3. Kekasaran dan Morfologi Hasil Pengelasan TIG Baja Tahan Karat 316 dengan Kadar Sulfur Berbeda

    Directory of Open Access Journals (Sweden)

    Abdullah Shahab

    2010-01-01

    Full Text Available The presence of impurities in stainless steel can unexpectedly create a problem in welding. The difference of a small amount of impurities, from heat to heat, can induce the inconsistency in welding especially in automatic welding. This study is conducted to asses the influence of sulfur content of the steel on morphology of weld which is represented by the variation of weld pool and surface roughness of weld. The effect of sulfur on surface roughness of weld is studied in TIG welding of 316 stainless steels with different sulfur content. The influence of sulfur on the weld geometry, characterized by the ratio of depth and width of the weld (D/W, is studied in welding with various parameters. The variation of the weld geometry is conjointly studied in relation to the surface roughness of weldment. The effect of sulfur is also studied using a stationary arc with different current and duration. The variation of the diameter of a circular pool and the degree of protuberance which possibly emerged beneath the specimen is related to the sulfur content of the steel. The results of the study show the salient effect of sulfur on the surface roughness of weld. The surface roughness of steel with high sulfur content always more perturbed than that of steel with lower one; the different movement of liquid, characteristic of these two steels is posited to explain the difference. Greater degree of roughness is accompanied by a greater value of the ratio D/W. The results of the study with stationary arc show some points of a paramount importance. The effect of sulfur which hitherto considered advantageous to the formation of a weld with a higher ratio of D/W, turn out to be effective only in a specific range of welding parameters. In a different range, the weld geometry is more influenced by the arc characteristic, the anode spot. Abstract in Bahasa Indonesia: Keberadaan elemen impuritis dalam baja tahan karat seringkali tanpa diduga bisa menimbulkan masalah

  4. KARAT-LAMBDA - frequency dependent ray-traced troposphere delays for space applications

    Science.gov (United States)

    Hobiger, Thomas; Baron, Philippe

    2014-05-01

    Space-geodetic microwave techniques work under the assumption that the only dispersive, i.e. frequency dependent delay contribution is caused by the ionosphere. In general, the refractivity, even for the troposphere, is a complex quantity which can be denoted as N = N0 + (N'(f) + i N''(f)) where N0 is a frequency independent term, and N'(f) and N''(f) represent the complex frequency dependence. Thereby, the imaginary part can be used to derive the loss of energy (absorption) and the real part can be assigned to the changes in the propagation velocity (refraction) and thus describes the delay of an electromagnetic wave which propagates through that medium. Although the frequency dependent delay contribution appears to be of small order, one has to consider that signals are propagating through few kilometers of troposphere at high elevations to hundredths of kilometers at low elevations. Therefore, the Kashima Ray-Tracing package (Hobiger et al., 2008) has been modified (and named KARAT-LAMBDA) to enable the consideration of a frequency dependent refractivity. By using this tool, it was studied if and to which extent future space geodetic instruments are affected from dispersive troposphere delays. Moreover, a semi-empirical correction model for the microwave link of the Atomic Clock Ensemble in Space (ACES) has been developed, based on ray-tracing calculations with KARAT-LAMBDA. The proposed model (Hobiger et al., 2013) has been tested with simulated ISS overflights at different potential ACES ground station sites and it could be demonstrated that this model is capable to remove biases and elevation dependent features caused by the dispersive troposphere delay difference between the up-link and down-link. References: T. Hobiger, R. Ichikawa, T. Kondo, and Y. Koyama (2008), Fast and accurate ray-tracing algorithms for real-time space geodetic applications using numerical weather models, Journal of Geophysical Research, vol. 113, iss. D203027, pp. 1-14. T. Hobiger, D

  5. Miniature specimen shear punch test for UHMWPE used in total joint replacements.

    Science.gov (United States)

    Kurt, S M; Jewett, C W; Bergström, J S; Foulds, J R; Edidin, A A

    2002-05-01

    Despite the critical role that shear is hypothesized to play in the damage modes that limit the performance of total hip and knee replacements, the shear behavior of ultra-high molecular weight polyethylene (UHMWPE) remains poorly understood, especially after oxidative degradation or radiation crosslinking. In the present study, we developed the miniature specimen (0.5 mm thickness x 6.4mm diameter) shear punch test to evaluate the shear behavior of UHMWPE used in total joint replacement components. We investigated the shear punch behavior of virgin and crosslinked stock materials, as well as of UHMWPE from tibial implants that were gamma-irradiated in air and shelf aged for up to 8.5 years. Finite element analysis, scanning electron microscopy, and interrupted testing were conducted to aid in the interpretation of the shear punch load-displacement curves. The shear punch load-displacement curves exhibited similar distinctive features. Following toe-in, the load-displacement curves were typically bilinear, and characterized by an initial stiffness, a transition load, a hardening stiffness, and a peak load. The finite element analysis established that the initial stiffness was proportional to the elastic modulus of the UHMWPE, and the transition load of the bilinear curve reflected the development of a plastically deforming zone traversing through the thickness of the sample. Based on our observations, we propose two interpretations of the peak load during the shear punch test: one theory is based on the initiation of crystalline plasticity, the other based on the transition from shear to tension during the tests. Due to the miniature specimen size, the shear punch test offers several potential advantages over bulk test methods, including the capability to directly measure shear behavior, and quite possibly infer ultimate uniaxial behavior as well, from shelf aged and retrieved UHMWPE components. Thus, the shear punch test represents an effective and complementary

  6. Intra-limb coordination in karate kicking: Effect of impacting or not impacting a target.

    Science.gov (United States)

    Quinzi, Federico; Sbriccoli, Paola; Alderson, Jacqueline; Di Mario, Alberto; Camomilla, Valentina

    2014-02-01

    This study aimed to investigate the kicking limb coordinative patterns adopted by karate practitioners (karateka) when impacting (IRK), or not impacting (NIRK) a target during a roundhouse kick. Six karateka performed three repetitions of both kicks while kicking limb kinematics were recorded using a stereophotogrammetric system. Intra-limb coordination was quantified for hip and knee flexion-extension from toe-off to kick completion, using the Continuous relative phase (CRP). Across the same time interval, thigh and shank angular momentum about the vertical axis of the body was calculated. For all trials, across all participants, CRP curve peaks and maximum and minimum angular momentum were determined. A RM-ANOVA was performed to test for differences between kicking conditions. The CRP analysis highlighted, during the central portion of both kicks, a delayed flexion of the hip with respect to the knee. Conversely, during the terminal portion of the CRP curves, the NIRK is performed with a more in-phase action, caused by a higher hip angular displacement. The NIRK is characterized by a lower angular momentum which may enhance control of the striking limb. It would seem that the issue of no impact appears to be solved through the control of all segments of the kicking limb, in contrast to the primary control of the lower leg only observed during the IRK.

  7. Experimental and Numerical Simulation Research on Micro-Gears Fabrication by Laser Shock Punching Process

    Directory of Open Access Journals (Sweden)

    Huixia Liu

    2015-07-01

    Full Text Available The aim of this paper is to fabricate micro-gears via laser shock punching with Spitlight 2000 Nd-YAG Laser, and to discuss effects of process parameters namely laser energy, soft punch properties and blank-holder on the quality of micro-gears deeply. Results show that dimensional accuracy is the best shocked at 1690 mJ. Tensile fracture instead of shear fracture is the main fracture mode under low laser energy. The soft punch might cause damage to punching quality when too high energy is employed. Appropriate thickness and hardness of soft punch is necessary. Silica gel with 200 µm in thickness is beneficial to not only homogenize energy but also propagate the shock wave. Polyurethane films need more energy than silica gel with the same thickness. In addition, blank-holders with different weight levels are used. A heavier blank-holder is more beneficial to improve the cutting quality. Furthermore, the simulation is conducted to reveal typical stages and the different deformation behavior under high and low pulse energy. The simulation results show that the fracture mode changes under lower energy.

  8. Forming mechanism of radial V-shaped microgrooves on plate using step punching method

    Directory of Open Access Journals (Sweden)

    Xiang Jian-hua

    2015-02-01

    Full Text Available The finned surface can increase the specific surface area, which could enhance the boiling efficiency of the working medium to realize the enhancement of heat transfer performance. This research adopted a step punching method to form a radial microgroove structure on the surface of a copper plate. The scanning electron microscopy analysis indicates that when the pressed metal is in the deformation range, it will flow under extrusion and is subject to the reaction force from the metal outside the deformation range, so a micro-finned structure nearby the punching tool is formed. And the deformation area of the formed microgroove is higher than the workpiece’s primitive surface. The relationships of the punching interference length Li with θc, ac, and αpt are analyzed; and the influence of forming parameters on the groove surface morphology as well as the relationships among these parameters are discussed. When the punching depth ac is 0.3 mm and the punching feeding angle θc is 2°–4°, the finned surface of the radial V-shaped microgrooves can be obtained.

  9. Validation of the shear punch-tensile correlation technique using irradiated materials

    Energy Technology Data Exchange (ETDEWEB)

    Hankin, G.L.; Faulkner, R.G. [Loughborough Univ., Leicestershire (United Kingdom); Toloczko, M.B. [Washington State Univ., WA (United States); Hamilton, M.L. [Pacific Northwest National Lab., Richland, WA (United States)

    1998-03-01

    It was recently demonstrated that tensile data could be successfully related to shear punch data obtained on transmission electron microscopy (TEM) discs for a variety of irradiated alloys exhibiting yield strengths that ranged from 100 to 800 MPa. This implies that the shear punch test might be a viable alternative for obtaining tensile properties using a TEM disk, which is much smaller than even the smallest miniature tensile specimens, especially when irradiated specimens are not available or when they are too radioactive to handle easily. The majority of the earlier tensile-shear punch correlation work was done using a wide variety of unirradiated materials. The current work extends this correlation effort to irradiated materials and demonstrates that the same relationships that related shear punch tests remain valid for irradiated materials. Shear punch tests were performed on two sets of specimens. In the first group, three simple alloys from the {sup 59}Ni isotopic doping series in the solution annealed and cold worked conditions were irradiated at temperatures ranging from 365 to 495 C in the Fast Flux Test Facility. The corresponding tensile data already existed for tensile specimens fabricated from the same raw materials and irradiated side-by-side with the disks. In the second group, three variants of 316 stainless steel were irradiated in FFTF at 5 temperatures between 400 and 730 C to doses ranging from 12.5 to 88 dpa. The specimens were in the form of both TEM and miniature tensile specimens and were irradiated side-by-side.

  10. Frictionless contact of a rigid punch indenting a transversely isotropic elastic layer

    Directory of Open Access Journals (Sweden)

    Rajesh Patra

    2016-03-01

    Full Text Available This article is concerned with the study of frictionless contact between a rigid punch and a transversely isotropic elastic layer. The rigid punch is assumed to be axially symmetric and is being pressed towards the layer by an applied concentrated load. The layer is resting on a rigid base and is assumed to be ufficiently thick in comparison with the amount of indentation by the rigid punch. The relationship between the applied load $P$ and the contact area is obtained by solving the mathematically formulated problem through use of Hankel transform of different order. Effect of indentation on the distribution of normal stress at the surface as well as the relationship between the applied load and the area of contact have been shown graphically.

  11. Application of the small punch test to reactor pressure vessel integrity

    Energy Technology Data Exchange (ETDEWEB)

    Rosinski, S.T. [EPRI Nondestructive Evaluation Center, Charlotte, NC (United States); Viswanathan, R. [EPRI, Palo Alto, CA (United States); Foulds, J.R. [Failure Analysis Associates, Inc., Menlo Park, CA (United States)

    1998-07-01

    Based on prior success with fossil plant steels, EPRI is investigating the feasibility of applying the Small Punch test to determine the fracture toughness (K{sub ic}) of irradiated reactor pressure vessel (RPV) materials. The small punch test specimen is sufficiently small to alleviate future surveillance material availability concerns, as well as provide a means of direct vessel material interrogation by non-disruptive miniature sample removal and testing. A limited series of small punch tests on unirradiated and irradiated RPV steel materials has shown that the method can be used to estimate ductile-to-brittle transition temperatures and to determine the material fracture toughness (K{sub lc}, J{sub lc}). The results to date are described and the experimental difficulties that need to be resolved in achieving valid results are identified. (authors)

  12. Sport-Specific Repeated Sprint Training Improves Punching Ability And Upper-Body Aerobic Power In Experienced Amateur Boxers.

    Science.gov (United States)

    Kamandulis, Sigitas; Bruzas, Vidas; Mockus, Pranas; Stasiulis, Alvydas; Snieckus, Audrius; Venckunas, Tomas

    2017-08-09

    High-intensity interval training improves endurance and performance, but it is unclear whether sprint-type upper-body interval training is similarly effective. This study explored the effects of 4-week sport-specific sprint interval training on punch characteristics and endurance capacity in boxers. Experienced male amateur boxers (n = 18) participated in this 4-week training study, and were divided into an experimental group (EG) and a control group (CG) (n = 9 per group). Both groups completed standard low-intensity training. The EG also completed 3 rounds (14 sets of 3 s all-out punching with 10 s rest) of a simulated fight using a punching bag with 1 min rest between rounds 3 times per week, while the CG performed the same 3 rounds of a simulated fight at low intensity. Three rounds of 14 sets of 3 s all-out punching of a bag ergometer with 10 s rest were performed to measure punching abilities. Peak oxygen consumption and peak power were measured during progressive arm cranking before and after training. In response to training peak oxygen consumption and peak power in arm cranking test increased in EG; also, punching force increased and maintenance of punching frequency and punch force improved during the simulated fight, which resulted in greater cumulative force throughout the 3 rounds. There were no changes in the CG. The study shows that 1 month of all-out punching training (3 sessions per week with ∼2 min of all-out punching per session) improved both upper-body aerobic power and punching abilities in experienced amateur boxers.

  13. Assessment of mechanical properties of aluminium alloy welded joint using small punch test

    Institute of Scientific and Technical Information of China (English)

    Qiao Jisen; Tang Xueqin; Chen Jianhong; Zhu Liang

    2007-01-01

    The small punch test technique (SPT) was used to evaluate the mechanical properties of various materials and the basic method to test material tensile mechanics performance from an inverse finite element (FE) arithmetic with SPT was put forward. The research shows that specific tensile mechanical behavior and strain-stress distribution of each district of weld seam can be accurately determined by small punch test. Therefore, mechanical behavior of the inhomogeneous joint can be predicted by a numerical model. The simulation comes to good agreement with experimental data.

  14. Fabrication and loading of oral drug delivery microcontainers using hot punching

    DEFF Research Database (Denmark)

    Petersen, Ritika Singh; Borre, Mads T.; Keller, Stephan Sylvest

    2015-01-01

    In this paper, poly-l-lactic acid (PLLA) solution is spin coated to achieve a PLLA layer of 55 μm thickness. Hot punching with a Ni stamp is optimized to fabricate microcontainers in PLLA. Process optimization of thermal bonding of the microcontainers to a poly acrylic acid (PAA) layer is performed...... by modifying sample preparation and varying temperature. The fabricated microcontainers are loaded by hot punching in a spin coated drug polymer film of furosemide and poly-e-caprolactone (PCL)....

  15. Monetary policy and the punch bowl: The case for quantitative policy and wage growth targeting

    OpenAIRE

    Thomas I. Palley

    2017-01-01

    Federal Reserve Chairman William McChesney Martin famously declared that the Federal Reserve "is in the position of the chaperone who has ordered the punch bowl removed just when the party was really warming up." This paper uses the punch bowl metaphor to analyze how the Federal Reserve can improve monetary policy so as to deliver shared prosperity with greater financial stability. The problem is the party starts earlier on Wall Street than Main Street, so the Fed may remove the punchbowl bef...

  16. 德国Canton新旗舰Karat Reference 2 DC音箱

    Institute of Scientific and Technical Information of China (English)

    资料室

    2003-01-01

    @@ 德国Canton(金榜)公司近期隆重推出新旗舰产品Karat Reference2 DC,该音箱产品配置了一只1英寸半球顶铝镁合金震膜高音单元,两只7英寸铝镁合金音盆中音单元,一只12英寸石墨涂层纸盆低音单元和一只12英寸平面振膜低音辐射单元,频率相应18Hz~30kHz,灵敏度88dB,箱体尺寸:1200高×300宽×530深(mm),重量63kg/只,配置的单元、分频器和箱体的设计凝聚了金榜公司多年来新开发的尖端技术,无不闪现着科技与艺术共冶一炉的高贵美感,因而在美国拉斯维加斯2003CES展就捕获了众多惊羡的目光;该产品更获得德国、法国、英国权威音响杂志众多的奖项和热评,并被美国发烧天书作为封面推荐产品.

  17. Contact Karate Promotes Post-Exercise Hypotension in Young Adult Males

    Science.gov (United States)

    Magalhaes Sales, Marcelo; Victor de Sousa, Caio; Barbosa Sampaio, Wellington; Ernesto, Carlos; Alberto Vieira Browne, Rodrigo; Fernando Vila Nova de Moraes, Jose; Motta-Santos, Daisy; Rocha Moraes, Milton; Eugene Lewis, John; Gustavo Simões, Herbert; Martins da Silva, Francisco

    2016-01-01

    Background Worldwide, systemic arterial hypertension is a leading cause of death and non-communicable cardiovascular disease. A major factor contributing to this disease is a sedentary lifestyle. However, physical exercise, such as martial arts, may be an option for blood pressure (BP) control. The magnitude of post-exercise hypotension is associated with a prolonged decrease in BP in normotensive and hypertensive individuals. Objectives The present study aimed to verify the effects of a Contact Karate (CK) session on BP responses during a post-exercise recovery period in young adults. Patients and Methods Thirty-two male CK athletes volunteered (28.2 ± 6.7 years; 77.0 ± 5.7 kg; and 176.0 ± 4.7 cm) and underwent one CK session (50 minutes) and a control session in which no exercise was performed and the individuals remain seated during the whole time. BP was measured during rest (before sessions), as well as on the 15th, 30th, 45th, and 60th minutes of the post-exercise recovery. Results The systolic (SBP), diastolic (DBP), and mean arterial pressure (MAP) were significantly lower at the post-exercise period compared to pre-exercise rest (P < 0.05), with the largest reductions being observed at the 60th minutes of recovery [SBP (rest: 125.9 ± 4.7 vs. 60th minutes of recovery: 111.7 ± 5.4 mmHg); DBP (rest: 78.8 ± .7 vs. 60th minutes of recovery: 69.8 ± 2.7 mmHg)] and at the same periods of post-exercise recovery of the control session. Conclusions A single CK session can promote a decrease in BP for at least 60 minutes after performing this type of exercise in young adults. PMID:27826399

  18. Contact Karate Promotes Post-Exercise Hypotension in Young Adult Males

    Directory of Open Access Journals (Sweden)

    Magalhaes Sales

    2016-05-01

    Full Text Available Background Worldwide, systemic arterial hypertension is a leading cause of death and non-communicable cardiovascular disease. A major factor contributing to this disease is a sedentary lifestyle. However, physical exercise, such as martial arts, may be an option for blood pressure (BP control. The magnitude of post-exercise hypotension is associated with a prolonged decrease in BP in normotensive and hypertensive individuals. Objectives The present study aimed to verify the effects of a Contact Karate (CK session on BP responses during a post-exercise recovery period in young adults. Patients and Methods Thirty-two male CK athletes volunteered (28.2 ± 6.7 years; 77.0 ± 5.7 kg; and 176.0 ± 4.7 cm and underwent one CK session (50 minutes and a control session in which no exercise was performed and the individuals remain seated during the whole time. BP was measured during rest (before sessions, as well as on the 15th, 30th, 45th, and 60th minutes of the post-exercise recovery. Results The systolic (SBP, diastolic (DBP, and mean arterial pressure (MAP were significantly lower at the post-exercise period compared to pre-exercise rest (P < 0.05, with the largest reductions being observed at the 60th minutes of recovery [SBP (rest: 125.9 ± 4.7 vs. 60th minutes of recovery: 111.7 ± 5.4 mmHg; DBP (rest: 78.8 ± .7 vs. 60th minutes of recovery: 69.8 ± 2.7 mmHg] and at the same periods of post-exercise recovery of the control session. Conclusions A single CK session can promote a decrease in BP for at least 60 minutes after performing this type of exercise in young adults.

  19. 新规则实施对空手道裁判员执裁的影响%Effect of Karate New Rules on Referee's Judging

    Institute of Scientific and Technical Information of China (English)

    马波

    2014-01-01

    World karate alliance (WKF) promulgated "the karate rules of the game" that up-to-date modification examined and approved in December, 2011. Regulation is the guide who structures training and competition system, and the referee's understanding and implementation of the rules is the core of the competition. The higher the referee's judging level, the higher the athlete's competition level. By contrast and analysis of new and old regulation, this paper aims to improve professional competence of China's karate referee, and thus drive the beneficial development of karate moves in China.%世界空手道联盟(WKF)2011年12月颁布最新修改审定的《空手道比赛规则》。规则是构建训练和比赛体系的向导,裁判员对规则的理解和执行是比赛的核心:裁判员执裁水平越高,运动员比赛水平就越高。通过对新旧规则主要内容的对比和分析,提高我国空手道裁判员的业务水平,由此带动我国空手道运动的良性发展。

  20. Study the Attitude, Knowledge and Experience of Coaches of Karate Federation Islamic Republic Of Iran toward Sport Psychology Counseling

    Directory of Open Access Journals (Sweden)

    Shahnaz Sheikh Rahmati

    2017-04-01

    Full Text Available The purpose of this study was study the attitude, knowledge and experience of coaches of Karate Federation Islamic Republic of Iran toward sport psychology counseling. For this purpose, 150 official coaches (75 women and 75 men of karate Federation of Islamic Republic of Iran who had grade 1 and 2 of certified coach and had participated in the senior Championships of Iran, championship adolescents of young people and under 21 years, national team qualifiers and teams participating in premier League, had participated in this research as individual. In order to collect the required information the researcher made and the research questionnaire Sports coaches on sports psychology was used. Research results by using a two variable Pearson correlation coefficient showed that there is meaningful relationship between experience and attitude to sport psychology consulting and as well as between knowledge and attitudes toward sport psychology consulting that is (p=0.001,p=0.001 respectively. also results of research using independent t-tests showed that there is not meaningful relationship between male and female attitudes towards sport psychology consulting (p=0.207 while there is meaningful difference between adult and youth educators' attitudes towards sports psychology counseling (p=0.001. It seems that according to common concerns that exist between coaches and athletes perhaps existence sport psychology can be effective to athletes and coaches in reducing stress and achieve the desired result.

  1. Professional karate-do and mixed martial arts fighters present with a high prevalence of temporomandibular disorders.

    Science.gov (United States)

    Bonotto, Daniel; Namba, Eli Luis; Veiga, Danielle Medeiros; Wandembruck, Fernanda; Mussi, Felipe; Afonso Cunali, Paulo; Ribeiro Rosa, Edvaldo Antonio; Azevedo-Alanis, Luciana Reis

    2016-08-01

    Facial trauma in sports has been associated with temporomandibular disorders. Because of the intensity and duration of training needed for elite-level competitions, high-performance athletes can have two to five times more traumatic injuries than recreational athletes. This study aimed to investigate the prevalence of temporomandibular disorders in high-performance martial arts fighters and compare it with the prevalence in recreational athletes and non-athletes. The Research Diagnostic Criteria for Temporomandibular Disorders was used to diagnose and classify professional karate-do practitioners (group I; n = 24), amateur karate-do practitioners (group II; n = 17), high-performance mixed martial arts fighters (group III; n = 13), and non-athletes (n = 28). The groups were compared with the chi-square test and tested for the difference between two proportions using a significance level of 5% (P 0.05). A diagnosis of arthralgia from disk displacement was made more frequently in groups I (45.8%; P = 0.013) and III (38.5%; P = 0.012) than in group IV (7.1%). The chronic pain associated with TMD was low intensity and low disability. While there was a high prevalence of temporomandibular disorders in the professional athletes in our study, the prevalence of the condition in recreational athletes was similar to that in individuals who did not practice martial arts. © 2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  2. Principles for on-line monitoring of tool wear during sheet metal punching

    NARCIS (Netherlands)

    Klingenberg, W.; Singh, U.P.; Hindusa, S.

    2004-01-01

    Significant progress was made in experimental, analytical and numerical modelling of the process of punching/blanking of sheet metal. These models, however, may still not be sufficiently adequate to accurately predict the process in all circumstances. Therefore, researchers have continued to search

  3. Design and optimisation of punching/blanking systems aided by experimental modelling

    NARCIS (Netherlands)

    Klingenberg, W; Singh, UP

    2005-01-01

    In order to be able to increase cost effectiveness and product quality, for example through the application of in-process control principles, a detailed understanding of the punching/blanking process is required. This can be acquired through analytical, numerical, and experimental modelling of the p

  4. Book review: Introduction to Social Research: Quantitative and Qualitative Approaches, Third Edition, by Keith F Punch

    NARCIS (Netherlands)

    Lecheler, S.

    2014-01-01

    In Introduction to Social Research, Keith F. Punch wants to ‘demystify’ and ‘simplify’ the research process, in an attempt to show that quality research can always be achieved. With its straightforward language, an intuitive structure, and well-defined learning objectives, this book does just that,

  5. Hot embossing and mechanical punching of biodegradable microcontainers for oral drug delivery

    DEFF Research Database (Denmark)

    Petersen, Ritika Singh; Mahshid, Rasoul; Andersen, Nis Korsgaard

    2015-01-01

    A process has been developed to fabricate discrete three-dimensional microcontainers for oral drug delivery application in Poly-L-Lactic Acid (PLLA) polymer. The method combines hot embossing for the definition of holes in a PLLA film and mechanical punching to penetrate the polymer layer around ...

  6. Personality and the Success of Card-Punch Operators in Training

    Science.gov (United States)

    Savage, R. Douglass; Stewart, Ronald R.

    1972-01-01

    In the card-punch operating training described here, it seems that extraversion is more important in job success in the early stages of training and clerical aptitude less so, with the relative importance of these attributes being reversed at a later stage. (Authors)

  7. Influence of Processing Parameters on Properties of Needle punched Composite Geotextiles

    Institute of Scientific and Technical Information of China (English)

    李婕; 储才元; 杨金魁; 张键

    2001-01-01

    The influence of the processing parameters on the properties of needle-punched composite geotextiles,compounded by polypropylene filament woven-fabrics and nonwoven fabrics is studied by using orthogonal design method. The relationship between tensile strength and peeling strength is discussed. The experimental results are offered as reference.

  8. Multiaxial fatigue behavior of conventional and highly crosslinked UHMWPE during cyclic small punch testing.

    Science.gov (United States)

    Villarraga, M L; Kurtz, S M; Herr, M P; Edidin, A A

    2003-08-01

    Previous observations of reduced uniaxial elongation, fracture resistance, and crack propagation resistance of highly crosslinked ultrahigh molecular weight polyethylene (UHMWPE) have contributed to concern that the technology may not be appropriate for systems undergoing cyclic fatigue loading. Using a "total life" approach, we examined the influence of radiation crosslinking on the fatigue response of UHMWPE under cyclic loading via the small punch test. Our goal in this study was to evaluate the suitability of the small punch test for conducting miniature-specimen, cyclic loading, and fatigue experiments of conventional and highly crosslinked UHMWPE. We subjected four types of conventional and highly crosslinked UHMWPE to cyclic loading at 200 N/s and at body temperature in a small punch test apparatus. After failure, the fracture surfaces were characterized with the use of field emission scanning electron microscopy to evaluate the fatigue mechanisms. Cyclic small punch testing under load control was found to be an effective and repeatable method for relative assessment of the fatigue resistance of conventional and highly crosslinked UHMWPE specimens under multiaxial loading conditions. For each of the four conventional and highly crosslinked UHMWPE materials evaluated in this study, fatigue failures were consistently produced according to a power law relationship in the low cycle regimen, corresponding to failures below 10000 cycles. The fatigue failures were all found to be consistent with a single source of initiation and propagation to failure. Our long-term goal in this research is to develop miniature-specimen fatigue testing techniques for characterization of retrieved UHMWPE inserts.

  9. Modeling water permeability in needle-punched nonwovens using finite element analysis

    CSIR Research Space (South Africa)

    Patanaik, A

    2008-03-01

    Full Text Available -punching process. The pore size in the nonwovens is measured by liquid extrusion porometry. Water permeability is measured by the water permeability tester. A finite element analysis is employed to predict the flow velocity through the nonwovens. A good correlation...

  10. Design and optimisation of punching/blanking systems aided by experimental modelling

    NARCIS (Netherlands)

    Klingenberg, W; Singh, UP

    2005-01-01

    In order to be able to increase cost effectiveness and product quality, for example through the application of in-process control principles, a detailed understanding of the punching/blanking process is required. This can be acquired through analytical, numerical, and experimental modelling of the p

  11. Analysis of ancient Indian silver punch-marked coins by external PIXE

    Energy Technology Data Exchange (ETDEWEB)

    Rautray, Tapash R., E-mail: tapash.rautray@gmail.com [Department of Dental Biomaterials, School of Dentistry, Kyungpook National University, Daegu (Korea, Republic of); Institute of Physics, Bhubaneswar 751005, Orissa (India); Nayak, Suman S. [Department of Computer Science, College of Engineering, University of Illinois at Urbana Champaign, 201 North Goodwin Avenue, Urbana, IL 61801-2302 (United States); Tripathy, Bipin B. [Department of Physics, Silicon Institute of Technology, Patia, Bhubaneswar 751024 (India); Das, Saubhagyalaxmi [Institute of Physics, Bhubaneswar 751005, Orissa (India); Das, Manas R. [Department of Civil Engineering, Institute of Technical education and Research, SOA University, Jagmohan Nagar, Bhubaneswar 751030 (India); Das, Satya R. [Department of Computer Science, Institute of Technical education and Research, SOA University, Jagmohan Nagar, Bhubaneswar 751030 (India); Chattopadhyay, Pranab K. [Centre for Archaeological Studies and Training, Eastern India, 4 Camac Street (1st Floor), Kolkata 700016 (India)

    2011-10-15

    Seven silver punch-marked coins were analysed using external particle induced X-ray emission technique. The main group of elements like Ag, Cu, Au, Pb and Fe were estimated along with a number of trace/minor elements such as K, Ca, Ti, V, Cr, Mn, Co, Ni and Rb in the analysed silver coins. Gold was found in all the coins and varied between 0.7% and 6.2% indicating the better economic condition of that civilisation. - Highlights: > The silver punch-marked coins, in the current study, were in use in India between 6th century BC to 6th century AD and have been analysed by in-air PIXE. > These sets of coins have immense archaeological importance because of their very rare availability. > These coins are distinguished from other coins because of the presence of gold as major element. > While the British period coins were fabricated using modern technologies, the punch-marked coins were shaped manually with developed metal technology. > The analysis of punch-marked coins using external PIXE beam has been done for the first time, which is unique of its kind.

  12. Further observations and review of numerical simulations of sheet metal punching

    NARCIS (Netherlands)

    Klingenberg, W.; Singh, U.P.

    2006-01-01

    In this report, a numerical study into the punching process is presented. During the simulations, the Gurson/Tvergaard damage model is applied in order to model void nucleation and growth. Particular attention is given in this paper to some of the inherent assumptions of both the damage mechanics mo

  13. HOW BOXERS DECIDE TO PUNCH A TARGET: EMERGENT BEHAVIOUR IN NONLINEAR DYNAMICAL MOVEMENT SYSTEMS

    Directory of Open Access Journals (Sweden)

    Robert Hristovski

    2006-07-01

    Full Text Available Previous research has shown how dynamical systems theory provides a relevant framework for investigating decision-making behavior in sport. The aim of this study was to adopt concepts and tools from nonlinear dynamics in examining effects of boxer-target distance and perceived punching efficiency on emergent decision-making during a typical practice task in boxing. Results revealed the existence of critical values of scaled distances between boxers and targets for first time appearance and disappearance of a diverse range of boxing actions including jabs, hooks and uppercuts. Reasons for the diversity of actions were twofold: i abrupt (qualitative changes in the number of the possible punches, i.e. motor solutions to the hitting task; and ii, fine modification of the probabilities of selecting specific striking patterns. Boxers were able to exploit the emerging perception of strikeability, leading to a changing diversity of selected actions and a cascade of abrupt changes in the perceptual-motor work space of the task. Perceived efficiency of a punching action by the participants also changed as a function of the scaled distance to a target and was correlated with the probability of occurrence of specific boxing actions. Accordingly, scaled distance-dependent perceived efficiency seems an important perceptual constraint in the training task of punching a heavy bag in boxers

  14. Randomization of Symbol Repetition of Punch Cards with Superimposed Coding in Information-Search Systems.

    Science.gov (United States)

    Pirovich, L. Ya

    The article shows the effect of the irregularity of using separate symbols on search noise on punch cards with superimposed symbol coding in information-search system (IPS). A binomial law of random value distribution of repetition of each symbol is established and analyzed. A method of determining the maximum value of symbol repetition is…

  15. Repair of R/C flat plates failing in punching by vertical studs

    Directory of Open Access Journals (Sweden)

    Hamed S. Askar

    2015-09-01

    Test results showed that using the proposed system on repairing damaged flat plates due to punching shear is very efficient. Theoretical results obtained based on the formulas adopted by different codes and from the critical shear crack theory (CSCT, showed a satisfactory agreement with test results.

  16. Very heavy iron-punching concretes; Betons tres lourds a base de riblons

    Energy Technology Data Exchange (ETDEWEB)

    Dubois, F. [Commissariat a l' Energie Atomique, Saclay(France). Centre d' Etudes Nucleaires

    1966-07-01

    The present report deals with all the heavy iron-punching concretes, metallic wastes produced by the transformation industry. After a detailed description of the physical properties of metallic aggregates, a classification of heavy mortars is given, into three main categories: steel-shot grouts d = 5,3 - 6; steel-shot grouts mixed with a mineral d = 3,7 - 4,2; injection heavy grouts d = 3,5 - 4. The following chapter describes iron-punching concretes the most used in the atomic industry: iron-punching concretes mixed with cast-iron - iron-punching concretes mixed with magnetite; iron-punching concretes mixed with barite; iron-punching concretes mixed with limonite; iron-punching concretes mixed with boron. The compositions of these concretes are given together with their physical and mechanical characteristics. Numerous diagrams make it possible to find rapidly the proportions of the constituents of these concretes as a function of the required density. Technical advice and specifications are given in an appendix together with a bibliography of these heavy concretes. (author) [French] Le present rapport traite de l'ensemble des betons lourds realises a l'aide de riblons, dechets metalliques fournis par l'industrie de transformation. Apres une description detaillee des proprietes physiques des agregats metalliques, les mortiers lourds sont d'abord presentes en les classant en trois grandes categories: les mortiers a base de grenailles d 5,3 a 6; les mortiers a base de grenailles avec addition d'un mineral d 3,7 a 4,2; les mortiers lourds injectables d = 3,5 a 4. Le chapitre suivant decrit les betons a base de riblons les plus utilises, dans l'industrie atomique: les betons de riblons avec addition de fonte; les betons de riblons avec addition de magnetite; les betons de riblons avec addition de barytine; les betons de riblons avec addition de limonite; les betons de riblons avec addition de bore. Les compositions de ces betons ainsi que

  17. Development of new punch shape to replicate scale-up issues in laboratory tablet press II: a new design of punch head to emulate consolidation and dwell times in commercial tablet press.

    Science.gov (United States)

    Aoki, Shigeru; Uchiyama, Jumpei; Ito, Manabu

    2014-06-01

    Differences between laboratory and commercial tablet presses are frequently observed during scale-up of tableting process. These scale-up issues result from the differences in total compression time that is the sum of consolidation and dwell times. When a lubricated blend is compressed into tablets, the tablet thickness produced by the commercial tablet press is often thicker than that by a laboratory tablet press. A new punch shape design, designated as shape adjusted for scale-up (SAS), was developed and used to demonstrate the ability to replicate scale-up issues in commercial-scale tableting processes. It was found that the consolidation time can be slightly shortened by changing the vertical curvature of the conventional punch head rim. However, this approach is not enough to replicate the consolidation time. A secondary two-stage SAS punch design and an embossed punch head was designed to replicate the consolidation and dwell times on a laboratory tablet press to match those of a commercial tablet press. The resulting tablet thickness using this second SAS punch on a laboratory tablet press was thicker than when using a conventional punch in the same laboratory tablet press. The secondary SAS punches are more useful tools for replicating and understanding potential scale-up issues. © 2014 Wiley Periodicals, Inc. and the American Pharmacists Association J Pharm Sci. © 2014 Wiley Periodicals, Inc. and the American Pharmacists Association.

  18. POTÊNCIA E CAPACIDADE ANAERÓBIA EM ATLETAS DE KARATE

    Directory of Open Access Journals (Sweden)

    Keith Sato Urbinati

    2011-01-01

    Full Text Available O objetivo do presente estudo foi verificar o nível de potência muscular, bem como a intensidade de esforço durante prova de potência e capacidade anaeróbia em atletas de Karate. Participaram do estudo treze karatekas especialistas em prova de kumitê (luta,sexo masculino, idade média de 20,7±3,79 anos. Realizou-se a avaliação de potência e capacidade anaeróbia (Wingate test, com coleta das variáveis fisiológicas:frequência cardíaca (FC, pressão arterial (PA e lactato sanguíneo (LAC de repouso, imediatamente após e em 5 min de recuperação. Para verificar se ocorrem diferenças nas variáveis fisiológicas durante o teste, realizou-se análise de variância, post hoc de Bonferronie (p?0,05. Verificou-se potência de pico(PP de 8,77 ± 0,99 W/kg-1, potência média (PM de 5,13± 0,49 W.kg-1 e % de fadiga de 50,5 ± 6,45%. Para as variáveis fisiológicas,a FC (F=9,79; p=0,00 pós-teste de Wingate foi estatisticamente maior e diferenteda FC de repouso e recuperação. Não foram encontradas diferenças nos níveis pressatórios e nas concentrações de LAC. Em relação aos valores de FC e LAC tais variáveis pós-teste não se apresentaram elevados. Os valores de potência anaeróbia estão de acordo com a necessidade da modalidade esportiva. Assim, verificou-se menores intensidades de esforço em teste de Wingate quando comparados a de situação real de competição. O nível de potência muscular parece estar adequado ao kumitê.

  19. The evaluation of rectal mucosal punch biopsy in the diagnosis of Hirschsprung's disease: a 30-year experience of 954 patients.

    Science.gov (United States)

    Yoshimaru, Koichiro; Kinoshita, Yoshiaki; Yanagi, Yusuke; Obata, Satoshi; Jimbo, Takahiro; Iwanaka, Tsuyoshi; Takahashi, Yoshiaki; Esumi, Genshiro; Miyata, Junko A; Matsuura, Toshiharu; Izaki, Tomoko; Taguchi, Tomoaki

    2017-02-01

    For 30 years, we have consecutively performed rectal mucosal punch biopsy to diagnose Hirschsprung's disease. The aim of this study was to evaluate the safety of our technique. Patients with suspected Hirschsprung's disease who underwent punch biopsy, including our original "K-PUNCH" method using an S-moid forceps and non-specific blood-collecting tube at our department and branch hospital between April 1986 and March 2016 were included in the present study. Our punch biopsy technique is characterized by excellent visibility and a direct grasping sensation. The backgrounds and complications of the patients were retrospectively investigated. During this period, 954 patients (median age 4 months; range 1 day-73 years) underwent punch biopsy. Although there were no cases of severe complications (i.e., rectal perforation, infection or full-thickness biopsy), one (0.1%) of the 954 cases in the early period showed liver dysfunction and required transfusion due to bleeding. In addition, inappropriate specimens were obtained in 37 patients (3.9%). Punch biopsy including the "K-PUNCH" method is considered safe and feasible and is associated with a low rate of complications and inappropriate specimen harvesting among patients of all ages. Comorbidities, including the potential for hemorrhage, should always be considered.

  20. Quasi-static Normal Indentation of a Circular Disk Shaped Miniature Specimen by Rigid Hemispherical-headed Punches

    Directory of Open Access Journals (Sweden)

    Asif Husain

    2003-04-01

    Full Text Available The influence of diameter of rigid hemispherical-headed punches on a circular disk shaped miniature specimen of medium carbon steel has been investigated, in the small punch test. A 3-D finite-element model carried out the computation of the elastic-plastic solution ofdifferent hemispherical rigid punches. The three hemispherical-headed punches were designed and developed to conduct the miniature test. The small. punch test"was conducted on a circular shaped disk (l0.0 mm diameter, 0.5 mm thick, clamped around the periphery and deformed by central load applied by rigid hemispherical indenter. The ABAQUS finite-element software has been used to determine the load vs punch-displacement curves, von-Mises stresses, equivalent plastic strain, contact pressure, logarithmic stresses, load-till failure and full-field displacement in the model have been computed. The finite-element model was validated by comparing with the experimental data for load vs displacement curves. The effect of punch diameter on load vs displacement was observed experimentally as well as by finite-element method. The computational results compared reasonably well with the experimental results.

  1. A Comparative Study on Attacking Footwork of Chinese Karate and European Karate AthIetes%中、欧男子空手道运动员进攻步法运用对比研究

    Institute of Scientific and Technical Information of China (English)

    陈新富

    2015-01-01

    文章运用文献资料法、专家访谈法、观察法和数理统计法等研究方法,对第21届世界空手道锦标赛中欧洲男子运动员的12场比赛和2014年全国空手道冠军赛12场男子比赛中进攻步法使用情况进行对比研究。研究结果显示:(1)欧洲运动员进攻步法技术灵活多变,而我国运动员表现出使用种类单一特征;(2)在使用步法的战术形式选择数量上欧洲运动员明显高于我国运动员;(3)从成功率来看,我国运动员的技战术水平逐渐得到提升。%Using the methods of literature, expert interview, observation, and mathematical statistics, the article studies comparatively the men athletes 12 games in the 21st World Karate Tournament European and the 2014 National Karate Championship offensive moves in 12 men matches. The results show that:(1) the European players’ attack technology is flexible footwork, but Chinese athletes show the types of using single feature; (2) in the use of footwork, European athletes are significantly higher than those in the number of tactics to choose athletes in China;(3)from the point of success rate, Chinese athlete's technology and tactics level improved gradually.

  2. K金首饰中镍含量与镍释放量关系研究%Relationship between Nickel Content and Nickel Release in Karat Gold Jewelry

    Institute of Scientific and Technical Information of China (English)

    杨鹔; 王浩杰; 张帆; 王鑫磊; 蔡薇; 黄成; 方志惠; 韩冰; 曹小勇

    2016-01-01

    我国的K金首饰包括9K、14K、18K、22K几类,通常K金首饰是在主体为黄金的基础上按照惊定比例含量掺入部分杂质元素,若其中的镍含量过高发生镍释放,可能导致佩戴人过敏。采用XRF愘光光谱惖检测饰品中的含镍量,悁究K金饰品含镍量值与镍释放量间的关系。设定定性方法测试K金首饰中镍含量5%为镍释放量的愄性值的阀值,筛恒K金首饰的镍释放量是否符合悹求,再确定进行镍释放量定量检测。结果表明,对于饰品镍含量<5%的产品,可惣不进行镍释放量的检测;对于饰品镍含量5%~10%的产品,可惣恒择部分产品进行镍释放量检测;对于饰品镍含量>10%的产品,都总悹定量检测镍释放量。%Karat gold jewelry including 9K, 14K, 18K and 22K in China. Usually, Karat gold jewelry is made up of gold mixed with some impurity elements. Nickel can release from the high nickel content jewelry, and it can cause allergy. The relationship between the content of nickel and nickel release quantity of the karat gold were set up after the content of nickel was detected by XRF. Set a threshold of nickel release quantity of 5% in qualitative methods to test karat gold jewelry. Quantitative detect the nickel release quantity of the filtered karat gold jewelry. The results showed that, it is unnecessary to detect nickel release quantity when nickel content in Karat gold jewelry is less than 5%, part of the nickel release quantity should be detected when nickel content ranged 5%~10%, and the nickel release quantity must be detected when nickel content is higher than 10%.

  3. A karate program for improving self-concept and quality of life in childhood epilepsy: results of a pilot study.

    Science.gov (United States)

    Conant, Kerry D; Morgan, Amy K; Muzykewicz, David; Clark, Derrick C; Thiele, Elizabeth A

    2008-01-01

    The potential cognitive and psychosocial effects of childhood epilepsy have significant implications for a child's self-image and academic achievement. This study focuses on a 10-week karate program for children and adolescents with epilepsy aimed at increasing social confidence, self-concept, and quality of life, as well as reducing parental anxiety. Eleven children (8-16 years old) and their parents participated in this questionnaire study, and complete data were available for nine of these families. Measures consisted of the Piers-Harris Children's Self-Concept Scale, the Quality of Life in Childhood Epilepsy (QOLCE) questionnaire, and the Parental Stress Index. By parental report, significant improvement in memory function and largely positive trends in quality of life on multiple subscales were observed. By child report, intellectual self-esteem and social confidence also improved. Parental stress decreased, although not significantly, suggesting a potential benefit and indicating a role for future interventions targeting family anxiety.

  4. Anthropometric features and body composition of young athletes practicing karate at a high and medium competitive level.

    Science.gov (United States)

    Giampietro, M; Pujia, A; Bertini, I

    2003-10-01

    The aim of the study was to examine the anthropometric features and body composition of athletes practising karate at a high and medium competitive level. Our study was carried out on a sample of 35 subjects practising karate and aged from 16.0 to 32.5 years. This sample was divided into two groups: group 1 ( n=14 elite athletes) and group 2 ( n=21 amateur athletes). Various anthropometric measurements were taken (weight, height both standing and sitting, diameters, circumferences and skinfold thickness) from which different anthropometric indices were calculated (body mass index, Scelic and Grant indices, arm muscle circumference and area), and the somatotype was then determined. The body composition of each subject was assessed using the skinfold technique and the Jackson-Pollock (J-P) and Sloan-Weir (S-W) equations. The two groups of athletes showed very similar measurements regarding anthropometric characteristics. Only the Scelix index presented a significantly different value in the two groups (49.6+/-1.3 for group 1 vs. 51.1+/-1.3 for group 2; psomatotype, while the amateur athletes presented a balanced mesomorphic type. Moreover, a lower percentage of fat mass was more frequent in the first group (J-P=8.1+/-2.4%; S-W=8.9+/-3.3%) than in the second one (J-P=9.8+/-1.6%; S-W=11.2+/-3.7%), although the differences between the two groups were not significant. We conclude that group 1 is characterized by a slightly prominent vertical development of the skeletal frame. This could be an anthropometric characteristic that is best suited to meet the specific functional requirements of this sport. Moreover, both groups of athletes are characterized by a low percentage of fat mass, particularly the elite group.

  5. Flat slabs strengthened to punching with carbon fiber reinforced polymer (CFRP dowels

    Directory of Open Access Journals (Sweden)

    Helder Luiz da Silva Rodrigues

    2015-10-01

    Full Text Available This paper presents results of punching tests carried out in four reinforced concrete flat slabs, one of them without shear reinforcement and others strengthened with CFRP dowels. Slabs were 1000 mm square meters and 60 mm thick and were subjected to mid span loadings until failure. The strengthening arrangements were radial and cruciform, varying the number of layers of CFRP dowels. The results presented include vertical displacements, strain on steel and concrete, ultimate loads and failure mode, as well as estimation of resistance based on the Brazilian standards. It was observed significant improvement on punching resistance of the strengthened slabs when compared to the reference slab, highlighting the good performance for the strengthening system evaluated.

  6. The development of a tensile-shear punch correlation for yield properties of model austenitic alloys

    Energy Technology Data Exchange (ETDEWEB)

    Hankin, G.L.; Faulkner, R.G. [Loughborough Univ. (United Kingdom); Hamilton, M.L.; Garner, F.A. [Pacific Northwest National Lab., Richland, WA (United States)

    1997-08-01

    The effective shear yield and maximum strengths of a set of neutron-irradiated, isotopically tailored austentic alloys were evaluated using the shear punch test. The dependence on composition and neutron dose showed the same trends as were observed in the corresponding miniature tensile specimen study conducted earlier. A single tensile-shear punch correlation was developed for the three alloys in which the maximum shear stress or Tresca criterion was successfully applied to predict the slope. The correlation will predict the tensile yield strength of the three different austenitic alloys tested to within {+-}53 MPa. The accuracy of the correlation improves with increasing material strength, to within {+-} MPa for predicting tensile yield strengths in the range of 400-800 MPa.

  7. Review: Keith F. Punch (2005. Introduction to Social Research—Quantitative & Qualitative Approaches

    Directory of Open Access Journals (Sweden)

    Constantinos N. Phellas

    2006-03-01

    Full Text Available PUNCH's book is composed of 12 comprehensive and very accessible chapters on quantitative, qualitative and mixed empirical methods, intended for newcomers to the social sciences. This second edition of the book provides a wide range of illustrative examples, making it easier for the student to comprehend the basics of research. I would strongly recommend it to my undergraduate students as a practical and friendly guide for their studies. URN: urn:nbn:de:0114-fqs060249

  8. Estimation of Mechanical Properties of Stainless Steel AISI 410 by Small-Punch Testing (Erickson Test)

    Science.gov (United States)

    Hassan, A.-P.

    2014-07-01

    The small-punch testing (SPT) method is used for determining the mechanical properties of AISI 410 (0.14% C, 12% Cr) stainless steel. A thin disc-shaped specimen with known mechanical properties is pressed with a small ball until the appearance of cracks in the former. The load - displacement curves are recorded. Computation of the yield strength and fracture energy by the curve obtained and by known formulas shows good convergence with the characteristics obtained by standard testing.

  9. Treatment of Die-Punch Fractures with 3D Printing Technology.

    Science.gov (United States)

    Chen, Chunhui; Cai, Leyi; Zhang, Chuanxu; Wang, Jianshun; Guo, Xiaoshan; Zhou, Yifei

    2017-07-19

    We evaluated the feasibility, accuracy and effectiveness of applying three-dimensional (3D) printing technology for preoperative planning for die-punch fractures. A total of 107 patients who underwent die-punch fracture surgery were enrolled in the study. They were randomly divided into two groups: 52 cases in the 3D model group and 55 cases in the routine group. A 3D digital model of each die-punch fracture was reconstructed in the 3D group. The 3D digital model was imported to a 3D printer to build the full solid model. The operation time, blood loss volume, and the number of intraoperative fluoroscopy were recorded. Follow-up was performed to evaluate the patients' surgical outcomes. Treatment of die-punch fractures using the 3D printing approach reduced the number of intraoperative fluoroscopy, blood loss volume, and operation time, but did not improve wrist function compared to those in the routine group. The patients wanted the doctor to use the 3D model to introduce the condition and operative plan because it was easier for them to understand. The orthopedic surgeons thought that the 3D model was useful for communicating with their patients, but their satisfaction with the preoperative plan was much lower than the benefit of using the 3D model to communicate with their patients. 3D printing technology produced more accurate morphometric information for orthopedists to provide personalized surgical planning and communicate better with their patients. However, it is difficult to use widely in the department of orthopedics.

  10. Usefulness and limitation of punched-out orchidometer in testicular volume measurement

    Institute of Scientific and Technical Information of China (English)

    Koji Shiraishi; Hiroshi Takihara; Yoriaki Kamiryo; Katsusuke Naito

    2005-01-01

    Aim: To determine the limitations of a punched-out orchidometer in practical use, we compared with a scrotal ultrasound (USG). Methods: A total of 281 testes from 142 males were examined using both a punched-out orchidometer and a USG. The volume differential between both methods was calculated and expressed as orchidometer/USG volume (O/U ratio). Distribution of the O/U ratio was determined and subdivided by clinical or pathological diagnosis. The correlations between the O/U ratio and patient age or orchidometer results were assessed. Results:There was a significant linear relationship between the results of orchidometer and USG (r = 0.94, P < 0.0001). The relationship between the O/U ratio and age or testicular volumes showed significant inverse correlations (r = 0.22,P = 0.0002, r = 0.45, P<0.0001, respectively). Klinefelter's syndrome, ipsilateral detorted testes and hypogonadotropic hypogonadism comparatively showed a high O/U ratio. No incidental lesion was detected by USG necessitating treatment. Conclusion: The punched-out orchidometer gives estimates that correlated well with the USG measurements and provides enough information for routine andrological evaluation. We should be aware that the orchidometer often overestimates the testicular volume, especially for the patients with small testis or adolescents.

  11. An investigation into sound transmission loss by polypropylene needle-punched nonwovens

    Directory of Open Access Journals (Sweden)

    Kazem Ghorbani

    2016-06-01

    Full Text Available In this work, the effects of variables such as initial carded web mass, needle penetration depth, punch density, and the frequency of incident sound wave on transmission of sound through polypropylene needle-punched nonwovens were investigated. Fibrous carded webs using commercially available 17 dtex, 90 mm staple length polypropylene fibers were prepared with different mass per unit area using carding machine. Samples were needled at various punch-densities and needle penetration depths were produced. Design points of experiments were set up using Taguchi experimental design method. Sound transmission loss (STL of needled samples was measured using an impedance tube equipped with four microphones. Minitab software was used to analyze the sound transmission ability of the samples. Results indicated that all of the considered controllable factor have significant effects on STL values determined for the needled nonwovens. Also, initial carded web mass was found to be the most influential factor affecting sound transmission through the samples. It was concluded that an increase in thickness of the samples as well as mass per unit area of nonwovens results in higher sound transmission loss by the samples.

  12. A biomechanical analysis of the roundhouse kicking technique of expert practitioners: A comparison between the martial arts disciplines of Muay Thai, Karate, and Taekwondo.

    Science.gov (United States)

    Gavagan, Colin J; Sayers, Mark G L

    2017-01-01

    The purpose of this study was first, to determine whether there were differences in the roundhouse kicking leg kinematics performed by highly skilled Muay Thai, Karate and Taekwondo practitioners (n = 8 per group). Next, analysis aimed to identify the kinematic determinants of effective roundhouse kicking performance. Three-dimensional (3D) lower limb kinematics were recorded using a nine camera infra-red motion capture system (500 Hz) during three maximal roundhouse kicks. Impact forces were recorded using a strain gauge (1000 Hz) attached to a kicking pad positioned at the height of each participant's mastoid process. Results showed that linear foot velocity at impact was moderately correlated with relative impact force (r = 0.66, P = 0.001). Discipline specific analyses of the temporal data indicated that the Muay Thai group had a shorter execution time (1.02 ± 0.15 s) than Taekwondo (1.54 ± 0.52 s, P = 0.028). Analysis of lower limb kinematic data indicated that both Karate (-947 ± 94 deg/s, P = 0.010) and Taekwondo (-943 ± 106 deg/s, P = 0.011) practitioners had faster knee extension velocities than the Muay Thai group (-706 ± 200 deg/s). Conversely, the Muay Thai practitioners (1.24 ± 0.15 m/s) had greater vertical centre of mass movement than both Karate (0.78 ± 0.24 m/s, P = 0.001) and Taekwondo groups (0.93 ± 0.19 m/s, P = 0.02). Our findings show that several fundamental movement patterns were common to the roundhouse kicking techniques across the Muay Thai, Karate, and Taekwondo disciplines. Effective roundhouse kicking performance was characterized by rapid pelvic axial rotation, hip abduction, hip flexion and knee extension velocities, combined with rapid movements of the COM towards the target.

  13. On Karate's"Control"in Competitive Scope%竞技视域下空手道运动中“控”的探骊

    Institute of Scientific and Technical Information of China (English)

    封又民; 孔柏梅

    2013-01-01

      “控”是空手道运动的重要技术特征,对空手道组手比赛获胜起着至关重要的作用。文章运用文献资料法、田野调查法、录像分析法与专家访谈法,对空手道组手比赛中“控”的运用状况进行了分析与阐述,得出在空手道组手比赛中合理有效的对人的因素(自身、对手、裁判员、教练员、观众)与物的因素(场地、规则)控制是获取比赛胜利的核心环节。%"Control"is an important part of Karate technical features, which plays an essential role in Karate combating. The paper analyzes and discusses the utilization of Control in Karate combating through reading of documents, field survey, video analysis and expert interview, finding that reasonable and effective control over human factors (self, rival, referee, coach, audience) and material factors(field, rule) is the key link in achieving triumph.

  14. As idéias psicopedagógicas e a espiritualidade no karate-do segundo a obra de Gichin Funakoshi

    Directory of Open Access Journals (Sweden)

    Barreira Cristiano Roque Antunes

    2003-01-01

    Full Text Available O karate é uma forma de luta com origens remotas, pouco conhecidas e marcado desenvolvimento na ilha de Okinawa do arquipélago japonês. Outrora praticado às escondidas, no século XX Gichin Funakoshi tornou-o público e o difundiu. Partiu de Funakoshi a denominação karate-do, "o caminho das mãos vazias", que dá um caráter doutrinário à arte que deveria servir, mais do que como mera forma de luta, ao desenvolvimento da personalidade. Procura-se fazer um resgate teórico das idéias psicopedagógicas e da espiritualidade próprias do karate sob a luz dos paradigmas culturais de maior influência no pensamento de Funakoshi. Observa-se claramente a influência e complementaridade entre confucionismo e zen-budismo além da herança prática do bushidô que permitem compreender o pensamento de Funakoshi acerca da espiritualidade e transmissão do conhecimento.

  15. Evaluation of ductile-brittle transition temperature before and after neutron irradiation for RPV steels using small punch tests

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Min-Chul [Korea Atomic Energy Research Institute, 150 Deokjin-dong, Yuseong-gu, Daejeon 305-353 (Korea, Republic of)]. E-mail: mckim@kaeri.re.kr; Oh, Yong Jun [Hanbat National University, Deogmyeong-dong, Yuseong-gu, Daejeon 305-719 (Korea, Republic of); Lee, Bong Sang [Korea Atomic Energy Research Institute, 150 Deokjin-dong, Yuseong-gu, Daejeon 305-353 (Korea, Republic of)

    2005-08-01

    Small punch (SP) tests were performed to evaluate the ductile-brittle transition temperature before and after a neutron irradiation of reactor pressure vessel (RPV) steels produced by different manufacturing (refining) processes. The results were compared to the standard transition temperature shifts from the conventional Charpy tests and the Master Curve fracture toughness tests in accordance with the American Society for Testing and Materials (ASTM) standard E1921. Small punch specimens were taken from a 1/4t location of the vessel thickness and machined into a 10 mm x 10 mm x 0.5 mm dimension. The specimens were irradiated in the research reactors at Korea Atomic Energy Research Institute Nuclear Research Institute in the Czech Republic at the different fluence levels of about 290 deg C. Small punch tests were performed in the temperature range of RT to -196 deg C using a 2.4 mm diameter ball. For the materials before and after irradiation, the small punch transition temperatures (T {sub SP}), which are determined at the middle of the upper small punch energies, showed a linear correlation with the Charpy index temperature, T {sub 41J}. T {sub SP} from the irradiated samples was increased with the fluence levels and was well within the deviation range of the unirradiated data. However, the transition temperature shift from the Charpy test ({delta}T {sub 41J}) shows a better correlation with the transition temperature shift ({delta}T {sub SP(E)}) when a specific small punch energy level rather than the middle energy level of the small punch curve is used to determine the transition temperature. T {sub SP} also had a correlation with the reference temperature (T {sub 0}) from the Master Curve method using a pre-cracked Charpy V-notched (PCVN) specimen.

  16. Moving Griffith crack in an orthotropic strip with punches at boundary faces

    Directory of Open Access Journals (Sweden)

    S. Mukherjee

    2005-01-01

    Full Text Available Integral transform technique is employed to solve the elastodynamic problem of steady-state propagation of a Griffith crack centrally situated along the midplane of orthotropic strip of finite thickness 2h and subjected to point loading with centrally situated moving punches under constant pressure along the boundaries of the layer. The problem is reduced to the solution of a pair of simultaneous singular integral equations with Cauchy-type singularities which have finally been solved through the finite Hilbert transform technique. For large h, analytical expression for the stress intensity factor at the crack tip is obtained. Graphical plots of the numerical results are also presented.

  17. Tooling solutions for sheet metal forming and punching of lean duplex stainless steel

    DEFF Research Database (Denmark)

    Wadman, Boel; Madsen, Erik; Bay, Niels

    2012-01-01

    .4509 and lean duplex EN1.4162 in a production designed for austenitic stainless steels, such as EN1.4301 and 1.4401. The result is a guideline that summarizes how stainless material properties may affect tool degradation, and suggests tool solutions for reduced production disturbances and tool maintenance cost.......For producers of advanced stainless components the choice of stainless material influences not only the product properties, but also the tooling solution for sheet metal stamping. This work describes how forming and punching tools will be affected when introducing the stainless alloys ferritic EN1...

  18. NUMERICAL SIMULATION BY COMPUTATIONAL FLUID DYNAMICS AND EXPERIMENTAL STUDY ON STIRRED BIOREACTOR WITH PUNCHED IMPELLER

    Institute of Scientific and Technical Information of China (English)

    WANG Yu; HE Pingting; YE Hong; XIN Zhihong

    2007-01-01

    Instantaneous flow field and temperature field of the two-phase fluid are measured by particle image velocimetry (PIV) and steady state method during the state of onflow. A turbulent two-phase fluid model of stirred bioreactor with punched impeller is established by the computational fluid dynamics (CFD), using a rotating coordinate system and sliding mesh to describe the relative motion between impeller and baffles. The simulation and experiment results of flow and temperature field prove their warps are less than 10% and the mathematic model can well simulate the fields, which will also provide the study on optimized-design and scale-up of bioreactors with reference value.

  19. Punching shear capacity of reinforced concrete slabs with headed shear studs

    DEFF Research Database (Denmark)

    Hoang, Linh Cao; Pop, Anamaria

    2015-01-01

    Punching shear in slabs is analogous to shear in beams. Despite this similarity, current design codes provide distinctly different methods for the design of shear reinforcement in the two situations. For example, the Eurocode method for beam shear design is founded on the theory of rigid plasticity....... To design shear reinforcement in slabs, on the other hand, the engineer must settle for an empirical equation. The aim of the study reported is to demonstrate that it is possible in a simple manner to design shear reinforcement in slabs based on the same rigid-plasticity foundation as for beam shear design...

  20. Joint punching and frequency effects on practical magnetic characteristics of electrical steels for high-speed machines

    Science.gov (United States)

    Kedous-Lebouc, A.; Messal, O.; Youmssi, A.

    2017-03-01

    Mechanical punching of electrical steels causes a degradation of their magnetic characteristics which can extend several millimeters from the cut edge. So, in the field of industrial applications, particularly that of small electrical machines, the stator core made of rigid and thin teeth would be subject to more losses. Thus, this topic of the effect of punching has to be submitted to further deep characterization and development in order to give some insight into the different mechanisms. In this framework, this paper evaluates the combined effect of punching and frequency on the magnetization curve and iron losses in thin SiFe and CoFe soft magnetic sheets. These alloys are typically suitable for the manufacture of high-speed electrical machines used in on board applications (aircraft power generators, automotive, etc). Two SiFe alloys and a CoFe alloy have been investigated. First, different rectangular samples of variable width (15, 10, 5, 3 mm) have been industrially punched. Then, a dedicated magnetic characterization has been made, using basically a mini-Epstein frame. Measurements have been performed from 50 Hz to 1 kHz and from 0.3 T to near saturation. Both rolling and transverse directions have been considered. Finally, a first attempt to predict the degradation due to the punching is presented. A useful description of the magnetic permeability as a function of B and f is given and the degradation parameters are estimated based on the knowledge of the reference permeability.

  1. Complementary Post Transcriptional Regulatory Information is Detected by PUNCH-P and Ribosome Profiling

    Science.gov (United States)

    Zur, Hadas; Aviner, Ranen; Tuller, Tamir

    2016-01-01

    Two novel approaches were recently suggested for genome-wide identification of protein aspects synthesized at a given time. Ribo-Seq is based on sequencing all the ribosome protected mRNA fragments in a cell, while PUNCH-P is based on mass-spectrometric analysis of only newly synthesized proteins. Here we describe the first Ribo-Seq/PUNCH-P comparison via the analysis of mammalian cells during the cell-cycle for detecting relevant differentially expressed genes between G1 and M phase. Our analyses suggest that the two approaches significantly overlap with each other. However, we demonstrate that there are biologically meaningful proteins/genes that can be detected to be post-transcriptionally regulated during the mammalian cell cycle only by each of the approaches, or their consolidation. Such gene sets are enriched with proteins known to be related to intra-cellular signalling pathways such as central cell cycle processes, central gene expression regulation processes, processes related to chromosome segregation, DNA damage, and replication, that are post-transcriptionally regulated during the mammalian cell cycle. Moreover, we show that combining the approaches better predicts steady state changes in protein abundance. The results reported here support the conjecture that for gaining a full post-transcriptional regulation picture one should integrate the two approaches. PMID:26898226

  2. Treatment of a Refractory Skin Ulcer Using Punch Graft and Autologous Platelet-Rich Plasma

    Directory of Open Access Journals (Sweden)

    Mauro Carducci

    2016-01-01

    Full Text Available Background. Chronic ulceration of the lower legs is a relatively common condition amongst adults: one that causes pain and social distress and results in considerable healthcare and personal costs. The technique of punch grafting offers an alternative approach to the treatment of ulcers of the lower limbs. Objective. Combining platelet-rich plasma and skin graft enhances the efficacy of treating chronic diabetic wounds by enhancing healing rate and decreasing recurrence rate. Platelet-rich plasma could, by stimulating dermal regeneration, increase the take rate after skin grafting or speed up reepithelialization. Methods and Materials. The ulcer was prepared by removing fibrin with a curette and the edges of the ulcer were freshened. The platelet-rich plasma has been infiltrated on the bottom and edges of the ulcer. The punch grafts were placed in 5 mm holes arranged. The ulcer was medicated with hydrogel and a pressure dressing was removed after 8 days. Results. After a few days the patient did not report more pain. Granulation tissue appeared quickly between implants. Most of the grafts were viable in 2-3 weeks. The grafts gradually came together to close the ulcer and were completed in four months.

  3. Long-term results of 2-mm punch grafting in patients with vitiligo vulgaris and segmental vitiligo : effect of disease activity

    NARCIS (Netherlands)

    Fongers, A.; Wolkerstorfer, A.; Nieuweboer-Krobotova, L.; Krawczyk, P.; Toth, G. G.; van der Veen, J. P. W.

    2009-01-01

    Background Punch grafting is a simple and frequently used technique for the treatment of stable vitiligo, resistant to medical therapy. However, studies reporting long-term results are exceptional. Objectives To evaluate the long-term results of 2-mm punch grafting in patients with vitiligo vulgaris

  4. Characteristics of the effect of insecticide karate on the metabolism of the nucleic acids and proteins in the subcellular fractions of the liver and intestine

    Directory of Open Access Journals (Sweden)

    Mukaddas Khamrakulova

    2012-12-01

    Full Text Available Karate is contact insecticide from the group of pyrethroids, its chemical formulae C23H19ClF3NO3, molecular mass 449.9. (1-RS-cis-2.2-dimethyl-3-(3.3.3-triphtoro-2chloropropanyl-cyclopropan of the carbonic acid-1 (RS-α-cyano-3-phenoxybenzolic ether. Purpose of this work was to study effect of insecticide Karate on the contents of DNA and RNA and total protein in the subcellular elements of the liver and intestinal mucosa in white rats.Experiments were performed on the outbred white rats of mass 120-250 g in 2 stages. Analysis of the results obtained showed that in acute poisoning with pesticide Karate the acute decrease in RNA and DNA occurred in the subcellular elements of liver and intestine mucosa during the first 7 days of experiment with subsequent normalization of the levels during the following 7 and 15 days. In chronic poisoning the number of RNA in the studied hepatic biomedium decreased in the homogenate to 66.47 and 55%, in the nucleic fractions to 64-62.5%, and in the supernatant fluid - to 52.6-48%; and in the small intestine - from 55.6% to 64.6%, respectively, according to the time of experiment. The DNA level reduced from 20% to 55%. In acute and chronic poisoning with pesticides of group pyrethroids, concentration of nucleic acids sharply reduced in the elements of liver and intestinal mucosa, that indicated about possibility of the inhibition of the DNA and RNA synthesis, which effect on the synthesis of protein in the cells.

  5. 从散打与空手道的对比浅析散打运动发展%On the Development of Sanda Compared with Karate

    Institute of Scientific and Technical Information of China (English)

    张蕾; 马骜

    2012-01-01

      With the methods of literature, comparative study, logical analysis, and interviews, the paper does the comparative analysis of Sanda and karate, about their features. In the past 30 years of Sanda development, the aim of promoting Sanda into Olympic Games, the changes and reform of Sanda game rules, all promotes the development of Sanda. Intaking the adavantages from Karate and its success experiences of world development, Chinese Sanda has gotten better inferences form Karate for its reform and better development. The study furtherly studies the developing trend and strategies of Sanda, througn compared with Karate, puts forward some suggestions for Sanda reform and further development.%  文章运用文献资料法、比较法、逻辑分析法、访谈法,对散打与空手道二者的技术特点进行了比较,在散打经过30多年的发展中,特别是最近的几年里,以推动散打进入奥运会为出发点,从规则的制定,技术的规定等多方面进行了改革,促进了散打的发展,并且吸收了空手道运动项目优势以及能在世界上得到成功推广的经验,为我国散打运动的改革与发展提出了很好的参考借鉴。文章进一步对今后散打运动的发展方向、策略进行了认真的探讨研究,通过散打与空手道的对比,对散打运动的发展现状提出结论与建议

  6. A method for numerically simulating the thermal state of a tube with punched helical-tape finning

    Science.gov (United States)

    Galushchak, I. V.; Gorbatenko, V. Ya.; Shevelev, A. A.

    2011-05-01

    A method for numerically simulating the thermal state of a tube with punched helical-tape finning and heat transfer from heating to heated medium through the finned tube is presented. Results of calculations carried out for one version of finning geometry under the conditions of heating nonboiling water by flue gases are given.

  7. REDUCED WOUND CONTRACTION AND SCAR FORMATION IN PUNCH BIOPSY WOUNDS - NATIVE COLLAGEN DERMAL SUBSTITUTES - A CLINICAL-STUDY

    NARCIS (Netherlands)

    DEVRIES, HJC; ZEEGELAAR, JE; MIDDELKOOP, E; GIJSBERS, G; VANMARLE, J; WILDEVUUR, CHR; WESTERHOF, W

    In full-thickness skin wounds dermal regeneration usually fails, resulting in scar formation and wound contraction. We studied dermal regeneration by implantation of collagenous matrices in a human punch biopsy wound model. Matrices were made of native bovine collagen I fibres, and either hyaluronic

  8. The small punch assessment of toughness losses in low alloy steels

    Energy Technology Data Exchange (ETDEWEB)

    Bulloch, J.H. [ESB, Power Generation, Dublin (Ireland)

    1998-12-31

    The presentation deals at length with the relationship between the Small Punch, SP, test transition temperature Tsp, behaviour and those displayed by the conventional Charpy Fracture Appearance Transition Temperature, FATT, obtained from large test specimens. Essentially it was demonstrated that the total test temperature range trends could reasonably be described by a non-linear expression such as FATT varied inversely with the square of the Tsp. Finally when the Tsp against FATT trends were separated into different steel classes an encouraging picture emerged inasmuch that a reasonable amount of data exhibited good agreement with the predicted effects of grain size. Fractographic details were also discussed and strong effects of strain or loading rates were identified. (orig.) 19 refs.

  9. Backward can extrusion with conical,rotating punch as a cold forging tribology test

    DEFF Research Database (Denmark)

    Ceron, Ermanno; Bay, Niels; Tetsuo, A.

    2011-01-01

    A new, simulative test of friction and lubrication in cold forging is developed by the authors. The test is based on a backward can extrusion process in which the workpiece rotates. An analytical model is presented determining the friction stress from the measured torque during testing combined...... with an analysis of the sliding velocity distribution along the punch nose. The latter is determined by FE analysis of the test. Results show friction stress for unalloyed low C-steel provided with different types of lubricants, e.g. phosphate coating plus soap, phosphate coating plus MoS2 and single bathe...... lubrication with PULS. The new test is so severe, that it is possible to break down the best lubrication systems for cold forging, such as phosphate coating plus soap and MoS2....

  10. Routine use of punch biopsy to diagnose small fiber neuropathy in fibromyalgia patients.

    Science.gov (United States)

    Levine, Todd D; Saperstein, David S

    2015-03-01

    Fibromyalgia is a clinical syndrome that currently does not have any specific pathological finding to aid in diagnosis. Therefore, fibromyalgia is most likely a heterogeneous group of diseases with similar symptoms. Identifying and understanding the pathological basis of fibromyalgia will allow physicians to better categorize patients, increasing prospective treatment options, and improving potential therapeutic endeavors. Recent work has demonstrated that approximately 50% of patients diagnosed with fibromyalgia have damage to their small unmyelinated nerve fibers. A skin punch biopsy is a sensitive and specific diagnostic test for this damage as a reduction in nerve fiber density allows for the diagnosis of small fiber neuropathy. Small fiber neuropathy is a disease with symptoms similar to fibromyalgia, but it often has a definable etiology. Identifying small fiber neuropathy and its underlying cause in fibromyalgia patients provides them with a succinct diagnosis, increases treatment options, and facilitates more specific studies for future therapeutics.

  11. Defect analysis in drilling needle-punched carbon–carbon composites perpendicular to nonwoven fabrics

    Directory of Open Access Journals (Sweden)

    Chenwei Shan

    2015-08-01

    Full Text Available Carbon–carbon composites are unique materials consisting of carbon fibers embedded in a carbonaceous matrix. Drilling of carbon–carbon composites is difficult to carry out due to the anisotropic, high specific stiffness and brittleness, nonhomogeneous inner structure of composites, and high abrasiveness of their reinforcing constituents. These typically result in defects being introduced into the workpiece and in very rapid wear development in the drilling tool. Defects are the undesired effects of machining using nonappropriate drilling parameters or worn drill. Aimed at this issue, first, the major defects caused in drilling needle-punched carbon–carbon composites are analyzed in detail. Second, the fiber fuzz factor and the ripping factor of fibers are defined to depict the drilling defects. Experiments are carried out using a conventional twist drill, and the results indicate that material structures, federates, and cutting speeds are reckoned to be the most significant factors contributing to defects.

  12. Finite-Element Modeling of Timber Joints with Punched Metal Plate Fasteners

    DEFF Research Database (Denmark)

    Ellegaard, Peter

    2006-01-01

    The focus of this paper is to describe the idea and the theory behind a finite-element model developed for analysis of timber trusses with punched metal plate fasteners (nail plates). The finite-element model includes the semirigid and nonlinear behavior of the joints (nonlinear nail and plate...... elements) and contact between timber beams, if any (bilinear contact elements). The timber beams have linear-elastic properties. The section forces needed for design of the joints are given directly by the finite-element model, since special elements are used to model the nail groups and the nail plate...... area over the joint lines. The finite-element model is based on the Foschi model, but with further improvements. After the theory of the model is described, results from experimental tests with two types of nail plate joints are compared with predictions given by the model. The model estimates...

  13. From Punched Cards to "Big Data": A Social History of Database Populism

    Directory of Open Access Journals (Sweden)

    Kevin Driscoll

    2012-08-01

    Full Text Available Since the diffusion of the punched card tabulator following the 1890 U.S. Census, mass-scale information processing has been alternately a site of opportunity, ambivalence and fear in the American imagination. While large bureaucracies have tended to deploy database technology toward purposes of surveillance and control, the rise of personal computing made databases accessible to individuals and small businesses for the first time. Today, the massive collection of trace communication data by public and private institutions has renewed popular anxiety about the role of the database in society. This essay traces the social history of database technology across three periods that represent significant changes in the accessibility and infrastructure of information processing systems. Although many proposed uses of "big data" seem to threaten individual privacy, a largely-forgotten database populism from the 1970s and 1980s suggests that a reclamation of small-scale data processing might lead to sharper popular critique in the future.

  14. Tissue Microarray Technology for Molecular Applications: Investigation of Cross-Contamination between Tissue Samples Obtained from the Same Punching Device.

    Science.gov (United States)

    Vassella, Erik; Galván, José A; Zlobec, Inti

    2015-04-02

    Tissue microarray (TMA) technology allows rapid visualization of molecular markers by immunohistochemistry and in situ hybridization. In addition, TMA instrumentation has the potential to assist in other applications: punches taken from donor blocks can be placed directly into tubes and used for nucleic acid analysis by PCR approaches. However, the question of possible cross-contamination between samples punched with the same device has frequently been raised but never addressed. Two experiments were performed. (1) A block from mycobacterium tuberculosis (TB) positive tissue and a second from an uninfected patient were aligned side-by-side in an automated tissue microarrayer. Four 0.6 mm punches were cored from each sample and placed inside their corresponding tube. Between coring of each donor block, a mechanical cleaning step was performed by insertion of the puncher into a paraffin block. This sequence of coring and cleaning was repeated three times, alternating between positive and negative blocks. A fragment from the 6110 insertion sequence specific for mycobacterium tuberculosis was analyzed; (2) Four 0.6 mm punches were cored from three KRAS mutated colorectal cancer blocks, alternating with three different wild-type tissues using the same TMA instrument (sequence of coring: G12D, WT, G12V, WT, G13D and WT). Mechanical cleaning of the device between each donor block was made. Mutation analysis by pyrosequencing was carried out. This sequence of coring was repeated manually without any cleaning step between blocks. In both analyses, all alternating samples showed the expected result (samples 1, 3 and 5: positive or mutated, samples 2, 4 and 6: negative or wild-type). Similar results were obtained without cleaning step. These findings suggest that no cross-contamination of tissue samples occurs when donor blocks are punched using the same device, however a cleaning step is nonetheless recommended. Our result supports the use of TMA technology as an accessory

  15. Tissue Microarray Technology for Molecular Applications: Investigation of Cross-Contamination between Tissue Samples Obtained from the Same Punching Device

    Directory of Open Access Journals (Sweden)

    Erik Vassella

    2015-04-01

    Full Text Available Background: Tissue microarray (TMA technology allows rapid visualization of molecular markers by immunohistochemistry and in situ hybridization. In addition, TMA instrumentation has the potential to assist in other applications: punches taken from donor blocks can be placed directly into tubes and used for nucleic acid analysis by PCR approaches. However, the question of possible cross-contamination between samples punched with the same device has frequently been raised but never addressed. Methods: Two experiments were performed. (1 A block from mycobacterium tuberculosis (TB positive tissue and a second from an uninfected patient were aligned side-by-side in an automated tissue microarrayer. Four 0.6 mm punches were cored from each sample and placed inside their corresponding tube. Between coring of each donor block, a mechanical cleaning step was performed by insertion of the puncher into a paraffin block. This sequence of coring and cleaning was repeated three times, alternating between positive and negative blocks. A fragment from the 6110 insertion sequence specific for mycobacterium tuberculosis was analyzed; (2 Four 0.6 mm punches were cored from three KRAS mutated colorectal cancer blocks, alternating with three different wild-type tissues using the same TMA instrument (sequence of coring: G12D, WT, G12V, WT, G13D and WT. Mechanical cleaning of the device between each donor block was made. Mutation analysis by pyrosequencing was carried out. This sequence of coring was repeated manually without any cleaning step between blocks. Results/Discussion: In both analyses, all alternating samples showed the expected result (samples 1, 3 and 5: positive or mutated, samples 2, 4 and 6: negative or wild-type. Similar results were obtained without cleaning step. These findings suggest that no cross-contamination of tissue samples occurs when donor blocks are punched using the same device, however a cleaning step is nonetheless recommended. Our

  16. NRPA Law Review. Combat Karate Class Illustrates ADA "Direct Threat" Exception.

    Science.gov (United States)

    Kozlowski, James C.

    2000-01-01

    Describes the Americans with Disabilities Act (ADA), which prohibits discrimination against people with disabilities, highlighting a lawsuit involving a boy with AIDS who was barred from a traditional combat-oriented martial arts school. Courts ruled that his exclusion did not violate the ADA because he posed significant health and safety risks to…

  17. NRPA Law Review. Combat Karate Class Illustrates ADA "Direct Threat" Exception.

    Science.gov (United States)

    Kozlowski, James C.

    2000-01-01

    Describes the Americans with Disabilities Act (ADA), which prohibits discrimination against people with disabilities, highlighting a lawsuit involving a boy with AIDS who was barred from a traditional combat-oriented martial arts school. Courts ruled that his exclusion did not violate the ADA because he posed significant health and safety risks to…

  18. Reconstruction of large wounds using a combination of negative pressure wound therapy and punch grafting after excision of acral lentiginous melanoma on the foot.

    Science.gov (United States)

    Seo, Jimyung; Kim, Jihee; Nam, Kyoung Ae; Zheng, Zhenlong; Oh, Byung Ho; Chung, Kee Yang

    2016-01-01

    Melanoma in darker-pigmented individuals often develops in an acral lentiginous fashion on the foot. After surgical removal of a tumor at this site, repair of the wound can be challenging. This is because there is an insufficient local skin pool and lack of mobility of the skin in this area. Moreover, functional aspects such as walking and weight bearing should be considered. We performed a combination treatment of negative pressure wound therapy (NPWT) and punch grafting on 15 patients, after wide excision of acral lentiginous melanomas on the foot, and compared these to 26 patients who underwent either secondary intention healing (SIH, n = 13) or NPWT (n = 13) alone. The punch grafting with NPWT group showed significantly shorter healing times than those of the other two groups. Evaluation of completely healed wounds using the Vancouver Burn Scar Assessment Scale revealed that the punch grafting group had mean values better, or comparable, to the SIH or NPWT group in four of the five scales (except pigmentation). As for complications, only one patient developed a wound infection after punch grafting. Further, by utilizing NPWT for fixation of punch grafts, it was possible to treat all subjects as outpatients after punch grafting. These results show that a combination treatment of NPWT and punch grafting is an excellent therapeutic option for post-wide excision wounds on the feet, with significantly shortened healing times and favorable cosmetic outcomes.

  19. A prática pedagógica dos mestres de caratê da Grande Vitória - ES Pedagogical Practice Among Karate Instructors in the greater Vitória (ES area La práctica pedagógica de los experts del karate de Grande Vitória (ES.

    Directory of Open Access Journals (Sweden)

    2008-03-01

    Full Text Available Este estudo se propõe investigar o tipo de prática de ensino dos ‘mestres’ de caratê nas academias da Grande Vitória (ES. A metodologia adotada consistiu da coleta de dados por meio da observação e da aplicação de entrevistas estruturadas. Os dados coletados evidenciaram que os conteúdos são tratados de maneira dogmática; a metodologia é baseada na explicação oral e demonstrações do professor; a relação professor-aluno favoreceu as decisões unilaterais do professor; na avaliação verifica-se a exatidão das técnicas ensinadas. Em síntese, pode-se concluir que a presença dos valores da tradição e do esporte nas aulas de caratê são fatores impeditivos para adoção de práticas pedagógicas mais críticas e significativas. This research work aims at investigating teaching practices among karate instructors in the gyms of the greater Vitoria area (ES. The adopted methodology consists of data collection through observation, and structured interviewing. The collected data show that contents are treated in a dogmatic manner; methodology is based on oral explanations and teacher demonstrations; the teacher-student relationship favors one-sided decisions made by the teacher; examinations verify accuracy of techniques taught. In a summary, one can conclude that the presence of tradition and sports values in karate lessons is a blocking factor to the adoption of more critical and meaningful pedagogical practices.
    Keywords: karate – sport pedagogy – pedagogical practices. Este estudio propone investigar el tipo de práctica de enseñanza de los “expert” en karate en las academias de Grande Vitória (ES. La metodología adoptada consistió en la recolección de datos por medio de la observación y de la aplicación de entrevistas estructuradas. Los datos reunidos evidencian que los contenidos son tratados de una manera dogmática; la metodología es basada en la explicación oral y las demostraciones del profesor

  20. Punching Shear Behavior of Continuous Bubbled Reinforced Reactive Powder Concrete Slab

    Directory of Open Access Journals (Sweden)

    Mohammad Redha K. Mahmood

    2017-03-01

    Full Text Available This paper presents an experimental investigation on punching shear behavior of continuous bubbled reinforced Reactive Powder Concrete (RPC slabs. Bubbled slab is one of the various types of voided slabs. It consists of bubbles placed inside a concrete slab which will reduce the self-weight of the structure by about 35% (Tina Lai 2009. On the other hand, using RPC make it possible for structural member to have smaller dimensions due to the great strength of this type of concrete. In this study, these two method to increase the building spaces dimensions by reducing self-weigh of the structure by using bubbled slabs and to decrease the structural members' dimensions by using RPC have been investigated together. To study the punching shear behavior of continuous bubbled flat slabs such as the ultimate load carrying capacity, central deflection and slabs crack pattern at the ultimate load, nine different types of slabs were tested. The parameters of the study were type of concrete (RPC and Normal Concrete (NC, bubbles diameter to slab thickness ratio (D/t of (0.6 and 0.7, bubbles location (at all slab area, started from distance D and 1.5D from the center slab and solid slab. The test results show that the crack pattern and ultimate load capacity as well as maximum deflection depends on all of the mentioned parameters, were by increasing (D/t ratio the ultimate load capacity increases about (6.49 and 9.58% for slabs with bubbles started at distance 2D and 3D, respectively. But in the slabs with bubbles at all slab area the ultimate load and the maximum deflection decreases about (6.63 and 9.47% and (7.96 and 6.84% for RPC and NC slabs, respectively. Also, the solid slab increases the ultimate load about (5.28% compare to bubbled slab at all area. It was found that by removing bubbles from center of the slab at distance 2D and 3D the ultimate load will increase about (14.72 and 8.76%, respectively for slabs with (D/t = 0.6 compare to slabs with

  1. A study on rate sensitivity of elasto-plastic fracture toughness of TRIP steel evaluated by a small punch test

    Directory of Open Access Journals (Sweden)

    Shi L.

    2012-08-01

    Full Text Available TRIP steel indicates an excellent characteristic in energy absorption because of its high ductility and strength by strain-induced martensitic transformation (SIMT. Recently, some shock absorption members are being used for automotive industries. For good fuel consumption of the automobile, it would realize the weight reduction without decaying performance if TRIP steel can be applied to those members. It can be considered that the fracture toughness is an important factor to evaluate the performance. To evaluate fracture toughness locally at any point of a product of those members, small punch testing method is quite effective. In the present study, first, an impact small punch testing apparatus is established. In addition, elasto-plastic fracture toughness of TRIP steel under impact loading and its rate sensitivity tested at various deflection rates are challenged to evaluate.

  2. A study on rate sensitivity of elasto-plastic fracture toughness of TRIP steel evaluated by a small punch test

    Science.gov (United States)

    Iwamoto, T.; Hashimoto, S.-ya; Shi, L.

    2012-08-01

    TRIP steel indicates an excellent characteristic in energy absorption because of its high ductility and strength by strain-induced martensitic transformation (SIMT). Recently, some shock absorption members are being used for automotive industries. For good fuel consumption of the automobile, it would realize the weight reduction without decaying performance if TRIP steel can be applied to those members. It can be considered that the fracture toughness is an important factor to evaluate the performance. To evaluate fracture toughness locally at any point of a product of those members, small punch testing method is quite effective. In the present study, first, an impact small punch testing apparatus is established. In addition, elasto-plastic fracture toughness of TRIP steel under impact loading and its rate sensitivity tested at various deflection rates are challenged to evaluate.

  3. Influence of the column rectangularity index and of the boundary conditions in the punching resistance of slab-column connections

    Directory of Open Access Journals (Sweden)

    O. S. PAIVA

    Full Text Available Experimental evidence indicates that both the column rectangularity index and the boundary conditions of the connection may affect the ultimate punching resistance. This paper presents general aspects of these topics and, through the analysis of experimental results of tests on 131 slabs, evaluates the accuracy and suitability of recommendations presented by ABNT NBR 6118, Eurocode 2, ACI 318 and fib Model Code 2010. Experimental results showed that the security level of normative estimates trend to reduce as the column rectangularity increases, and in some cases, the punching resistance was overestimated. Finally, adjustments are suggested in equations presented by NBR 6118 and MC2010 in order to eliminate this trend of unsafe results.

  4. Numerical And Experimental Analysis Of The Process Of Aviation Drawpiece Forming Using Rigid And Rubber Punch With Various Properties

    Directory of Open Access Journals (Sweden)

    Kut S.

    2015-09-01

    Full Text Available This paper presents the results of the numerical analysis and experimental research of the forming process of aviation drawpiece made from 0.6 mm thick Inconel 625 sheet metal. First phase of testing was conducted using rigid steel tools for drawpiece forming. Results of conducted simulations show that during rigid tool forming, the middle of the drawpiece losses stability. In consequence, rigid tool forming leads to the formation of unacceptable wrinkles on the drawpiece. Subsequent experimental research confirmed wrinkles of the metal drawpiece in this area. It was assumed that in order to eliminate this negative phenomenon, minor changes in technology and tool construction would have to be made. The drawpiece will be shaped by means of a flexible tool, than re-shaped using rigid tools. In the second phase of the research, tooling design changes have been made. They consisted of replacing the steel punch with a specially designed stamp susceptible for deformation. FEM numerical simulations were performed for flexible punch forming made of polyurethane elastomer with different hardness (50, 70, 85 and 90 Sh A. On their basis, the effect on the mechanical characteristics of the elastomeric drawing process and the formation of wrinkles was shown. They can be effectively eliminated by the use of a punch with hardness of 90 Sh A, which has also been confirmed by experimental research. In addition, the paper presents a comparative analysis of the deformations in selected actual drawpiece areas and in the elastomeric punch with hardness 90 Sh A computer model. The actual drawpiece deformation schedule and the values were determined using photogrammetric system Argus v.6.3., while the computer modeled drawpiece was based on FEM calculations performed in the MARC / Mentat system. In conclusion the difficulties as well as the advantages and disadvantages in determining the deformation of sheet metal parts were indicated using photogrammetric system

  5. About the indentation of a rigid punch with concave base into half plane, taking into account the influence of filler in cavity

    Directory of Open Access Journals (Sweden)

    Amirjanyan H.A.

    2012-03-01

    Full Text Available The contact problem of elasticity theory about the indentation of a rigid punch with concave base into elastic half plane is considered. It is supposed that the cavity between punch and boundary of half plane is filled with air or ideal incompressible liquid. The problem was solved by the method of a discrete singularities. The distribution of contact stresses, the pressure inside cavity and the length of contact area were obtained.

  6. Heat transfer enhancement of finned oval tubes with staggered punched longitudinal vortex generators

    Energy Technology Data Exchange (ETDEWEB)

    Chen, Y.; Fiebig, M.; Mitra, N.K. [Ruhr-Universitaet Bochum (Germany). Inst. fuer Thermo- und Fluiddynamik

    2000-02-01

    Punched longitudinal vortex generators in form of winglets in staggered arrangements were employed to enhance heat transfers in high performance finned oval tube heat exchanger elements. Three-dimensional hydrodynamically and thermally developing laminar flow (Re = 300) and conjugate heat transfer in finned oval tubes were calculated by solving the Navier-Stokes and energy equations with a finite-volume method in curvilinear grids. Velocity field, pressure distribution, vortex formation, temperature fields, local heat transfer distributions and global results for finned oval tubes with two to four staggered winglets ({beta}= 30{sup o}, {lambda} = 2, h =H) were presented and compared. Winglets in staggered arrangement bring larger heat transfer enhancement than in in-line arrangement since the longitudinal vortices from the former arrangement influence a larger area and intensify the fluid motion normal to the flow direction. For Re = 300 and Fi = 500, the ratios of heat transfer enhancement to flow loss penalty (j/j{sub 0})/( f/f{sub 0}) were 1.151 and 1.097 for a finned oval tube with two and four staggered winglets, respectively. (author)

  7. Study of Hot Tearing During Steel Solidification Through Ingot Punching Test and Its Numerical Simulation

    Science.gov (United States)

    Koshikawa, Takao; Bellet, Michel; Gandin, Charles-André; Yamamura, Hideaki; Bobadilla, Manuel

    2016-08-01

    Experimental and numerical studies of hot tearing formation in steel are reported. On the one hand, an ingot punching test is presented. It consists in the application of a deformation at the surface of a solidifying 450 kg steel ingot. The experimental parameters are the displacement of the pressing tool, together with its velocity, leading to variations of a global strain rate. On the other hand, three-dimensional finite element thermomechanical modeling of the test is used. The time evolution of the strain tensor serves to compute an index to evaluate the susceptibility to create hot tears. It is based on the integration of a hot tearing criterion (HTC) that compares the local accumulation of strain with the expression of a critical value proposed in the literature. The main variable of the criterion is the brittleness temperature range (BTR) that refers to the solidification interval during which strain accumulates and creates hot cracks or tears. Detailed comparison of the simulation results with the measurements reveals the importance of the BTR for the prediction as well as excellent capabilities of the HTC to predict the formation of hot tears.

  8. WHAT IS THE BEST RADIOGRAPHIC VIEW FOR "DIE PUNCH" DISTAL RADIUS FRACTURES? A CADAVER MODEL STUDY.

    Science.gov (United States)

    Falcochio, Diego Figueira; Crepaldi, Bruno Eiras; Trindade, Christiano Augusto; da Costa, Antonio Carlos; Chakkour, Ivan

    2012-01-01

    the aim of this study is try to show the best view for distal radius fractures so called die-punch fractures. There has been used a human cadaver radius bone from the Salvador Arena Tissue Bank. This bone was cleaned up after removing the soft tissues and osteotomies created displaced lunate fossa fractures of 0, 1, 2, 3 and 5 mm. We have fixed this fragment with adhesive tape. Then the joint deviation were significantly increased with step-offs of 1 mm. Radiographs were then taken into 5 different positions: postero-anterior view, lateral view, oblique views and tangencial view for each of the deviations. The resulting lunate fossa depression in each X-ray film was analyzed by the AutoCAD 2010® software. The tangencial view was the best one to see the 1mm and 3mm bone degrees and the second one view to see the 2mm and 5 mm degrees. The pronated oblique view was the best to see the 2mm degrees and the oblique supinated view wasn't able to see the degrees between 1 and 2mm. The tangencial view was the best one to see the 1mm and 3mm bone degrees and the second one view to see the 2mm and 5 mm degrees.

  9. Deformation mechanisms of IN713C nickel based superalloy during Small Punch Testing

    Energy Technology Data Exchange (ETDEWEB)

    Coleman, M., E-mail: m.p.coleman@swansea.ac.uk; Alshehri, H.; Banik, R.; Harrison, W.; Birosca, S.

    2016-01-05

    The role of local microstructure is critical in materials performance and integrity in a cast alloy. The grain size and grain boundary distributions as well as local texture can create various microstructure/microtexture clusters that cause deformation localisation in the alloy. Inconel 713C nickel base superalloys are used as turbocharger turbine wheels for modern diesel engines, produced via investment casting. In such an alloy localised deformation is highly expected during service, as the strain distribution is not uniform in the component due to casting geometrical factors in addition to non-homogenous microstructure and microtexture in the cast alloy. In the current investigation Small Punch (SP) tensile tests were carried out on IN713C at room temperature and 650 °C in an air environment under stroke control at a rate of 0.02 mm/s. The fracture surface examination and microstructure characterisation as well as detailed texture analyses were performed using Scanning Electron Microscopy (SEM) and Electron Backscatter Diffraction (EBSD). Finite Element (FE) analysis of the SP test was also implemented to investigate the role of stress state on the local deformation. It was evident that microstructure parameters such as grain morphology and original texture existed in the disc were the most influential factors in governing the deformation texture in mixed columnar/equiaxed (transition) disc microstructure. Whereas, the temperature was the determining parameter in grain rotations and texture changes for wholly columnar disc microstructures.

  10. Depositing archived paraffin tissue core biopsy specimens in paraffin tissue microarrays using a paraffin tissue punch modified with a countersink.

    Science.gov (United States)

    Vogel, Ulrich Felix

    2007-02-01

    Paraffin tissue microarrays (PTMAs) introduced by Kononen et al in 1998 have become a widely used technique in routine pathology and even more so in research. Kononen used a tissue puncher/arrayer (Beecher Instruments, Sun Prairie, WI, USA) to take paraffin tissue core biopsy specimens (PTCBs) of 0.6-2 mm in diameter from routine paraffin tissue blocks and transfer them to another paraffin block with up to 1000 holes. As pointed out by Mengel et al, however, it is not possible to use the Kononen/Beecher system to construct PTMAs out of archived PTCBs. To overcome this drawback in the extremely popular Beecher system, the paraffin tissue punch was modified by incorporating a conical 4 mm deep countersink. This countersink was milled with a conical precision cutter that can be bought in an ordinary hardware store (cost PTCB into the paraffin tissue punch and enables the construction of PTMAs with previously archived PTCBs using the widely distributed Beecher system. Moreover, this paraffin tissue punch can be used for other systems to create PTMAs, such as the low-budget systems designed by Vogel.

  11. 压射头的激光表面硬化工艺%Surface laser hardening of punch head

    Institute of Scientific and Technical Information of China (English)

    梁荣; 常晓惠; 谢伟; 董凤丹

    2014-01-01

    Experiments of laser remelting and phase transformation hardening were carried out on punch head made of QT 600-3 nodular cast iron.The hardened layer microstructure and wear-resistance were investigated , and service life of the punch heads treated by different laser hardening process was compared .Result shows that a fine ledeburite on surface layer obtained by laser remelting has excellent wear -resistance, this makes the maximum service life of punch heads raise to 4.8 times.%对QT600-3球墨铸铁压射头表面分别进行激光相变硬化处理和激光熔凝处理,研究了两种激光强化工艺的硬化层组织和耐磨性,比较了这两种激光处理压射头的使用寿命。结果表明,经激光熔凝处理得到的表层细小莱氏体具有最好的耐磨性,使得压射头的使用寿命最高提高到4.8倍。

  12. Effects of thermal fatigue on shear punch strength of tooth-colored restoratives

    Science.gov (United States)

    Melody, Fam Mei Shi; U-Jin, Yap Adrian; Natalie, Tan Wei Min; Elizabeth, Tay Wan Ling; Chien, Jessica Yeo Siu

    2016-01-01

    Aims: This study investigated the effect of thermal fatigue on the shear strength of a range of tooth-colored restorative materials including giomers, zirconia-reinforced glass ionomer cement (GIC), nano-particle resin-modified GIC, highly viscous GICs, and composite resin. Materials and Methods: Twenty specimens of each material were fabricated in standardized washers (17 mm outer diameter, 9 mm internal diameter, 1 mm thick). The specimens were cured, stored in 100% humidity at 37.5°C for 24 h, and randomly divided into two groups of 10. Group A specimens were nonthermocycled (NT) and stored in distilled water at 37°C for 168 h. Group B specimens were thermocycled (TC) for 10,000 cycles (168 h) with baths X, Y, and Z adjusted to 35°C, 15°C, and 45°C, respectively. Each cycle had dwell times of 28 s in X, and 2s in Y/Z in the order XYXZ. Specimens then underwent shear punch testing at a crosshead speed of 0.5 mm/min with a 2 kN load cell. Statistical analysis of shear strength was done using t-test and two-way ANOVA/Scheffe's post hoc test at significance level P composite resin (Filtek Z250XT) had the highest shear strength while the zirconia-reinforced (zirconomer) and a highly viscous GIC (Ketac Molar Quick) had the lowest. Conclusions: The effect of thermocycling on shear strength was material dependent. Thermal fatigue, however, did not significantly influence the shear strength of most materials assessed. The “sculptable” composite and giomer were significantly stronger than the other materials evaluated. Shear strength of the “flowable” injectable hybrid giomer was intermediate between the composite and GICs. PMID:27563182

  13. 空手道中段击在比赛中的运用与分析%The Use And Analysis Of The Karate Middle Of The Strike In The Game

    Institute of Scientific and Technical Information of China (English)

    李际麟; 李鑫

    2012-01-01

    Through access to relevant literature,technology and video statistics compared to watch video on karate competition,this paper studies the use of technology by karate athletes in the game,to deepen understanding of the importance of the middle of the strike.Karate video technology data,analysis and comparison of obtained in a karate competition,the middle of the strike is the most important score means a great influence on the athletes winning a competition.On this basis,the analysis of the middle hit the winning technical reasons and the direction of future development,and the middle of the hit combination of technology training and competition.%通过查阅相关资料文献,技术录像统计法对空手道比赛录像进行对比观看,来研究空手道运动员在比赛中的技术运用,加深对中段击重要性的认识。根据空手道比赛录像技术数据进行分析对比,得出在空手道比赛中,中段击是最主要的得分手段,对运动员比赛胜负的影响很大。在此基础上,分析了中段击获胜的技术原因及未来发展方向,并进一步提出了中段击组合技术在训练及比赛中的地位。

  14. 2015年全国空手道冠军赛技战术使用情况及对策研究%2015 the National Karate Championship Usage of Tactics and Countermeasures Research

    Institute of Scientific and Technical Information of China (English)

    冯兰兰

    2016-01-01

    To promote the development of the karate in China,the understanding of the present status of the karate tactics, by using the method of literature study,video observation method,mathematical statistics method randomly 2015 national karate championship in 20 games,expectation and scores of game statistics and analysis,to promote the development of karate sports in our country to provide theoretical reference.%我国自2006年开展空手道运动以来,发展迅速,虽起步晚,但通过几年的不懈努力,已经多次在世界级大赛上崭露头角,多次取得骄人的成绩。与其他开展较早的国家相比,我国空手道后备力量相对较为薄弱,与强国之间还有一定差距。为促进空手道在我国的发展,了解目前我国空手道技战术的发展现状,随机抽取2015年全国空手道冠军赛中20场比赛视频,对比赛中的技战术使用及得分情况进行统计与分析,旨在为了解空手道目前技战术的发展趋势,及推动空手道运动在我国的发展提供理论性参考。

  15. Efectos beneficiosos del karate sobre la propiocepcion y la coordinación en jóvenes con síndrome de Down: seguimiento a dos años

    OpenAIRE

    Garrido, F.; Garcia, P.

    2015-01-01

    Objetivos: Establecer el impacto de las artes marciales en el desarrollo de habilidades motores, especificamente sobre la propriocepcion, en jovenes afectados por Sindrome de Down. Diseño: 7 adolescentes participan en este estudio en el que su control postural es evaluado secuencialmente antes, durante y tras dos años de entrenamiento en karate. Se adaptaron tres test (Test de Burpee, Flamingo y Velocidad del Movimiento de Brazo)para realizar un analisis de la propriocepcion. ...

  16. Demonstration of the self-magnetic-pinch diode as an X-ray source for flash core-punch radiography.

    Energy Technology Data Exchange (ETDEWEB)

    Cordova, Steve Ray; Rovang, Dean Curtis; Portillo, Salvador; Oliver, Bryan Velten; Bruner, Nichelle Lee (Voss Scientific, Albuquerque, NM); Ziska, Derek Raymond (K-Tech Corporation, Albuquerque, NM)

    2007-10-01

    Minimization of the radiographic spot size and maximization of the radiation dose is a continuing long-range goal for development of electron beam driven X-ray radiography sources. In collaboration with members of the Atomic Weapons Establishment(AWE), Aldermaston UK, the Advanced Radiographic Technologies Dept. 1645 is conducting research on the development of X-ray sources for flash core-punch radiography. The Hydrodynamics Dept. at AWE has defined a near term radiographic source requirement for scaled core-punch experiments to be 250 rads{at}m with a 2.75 mm source spot-size. As part of this collaborative effort, Dept. 1645 is investigating the potential of the Self-Magnetic-Pinched (SMP) diode as a source for core-punch radiography. Recent experiments conducted on the RITS-6 accelerator [1,2] demonstrated the potential of the SMP diode by meeting and exceeding the near term radiographic requirements established by AWE. During the demonstration experiments, RITS-6 was configured with a low-impedance (40 {Omega}) Magnetically Insulated Transmission Line (MITL), which provided a 75-ns, 180-kA, 7.5-MeV forward going electrical pulse to the diode. The use of a low-impedance MITL enabled greater power coupling to the SMP diode and thus allowed for increased radiation output. In addition to reconfiguring the driver (accelerator), geometric changes to the diode were also performed which allowed for an increase in dose production without sacrificing the time integrated spot characteristics. The combination of changes to both the pulsed power driver and the diode significantly increased the source x-ray intensity.

  17. Comparison of Hanna and Hessburg-Barron trephine and punch systems using histological, anterior segment optical coherence tomography, and elliptical curve fitting models.

    Science.gov (United States)

    Moshirfar, Majid; Calvo, Charles M; Kinard, Krista I; Williams, Lloyd B; Sikder, Shameema; Neuffer, Marcus C

    2011-01-01

    This study analyzes the characteristics of donor and recipient tissue preparation between the Hessburg-Barron and Hanna punch and trephine systems by using elliptical curve fitting models, light microscopy, and anterior segment optical coherence tomography (AS-OCT). Eight millimeter Hessburg-Barron and Hanna vacuum trephines and punches were used on six cadaver globes and six corneal-scleral rims, respectively. Eccentricity data were generated using measurements from photographs of the corneal buttons and were used to generate an elliptical curve fit to calculate properties of the corneal button. The trephination angle and punch angle were measured by digital protractor software from light microscopy and AS-OCT images to evaluate the consistency with which each device cuts the cornea. The Hanna trephine showed a trend towards producing a more circular recipient button than the Barron trephine (ratio of major axis to minor axis), ie, 1.059 ± 0.041 versus 1.110 ± 0.027 (P = 0.147) and the Hanna punch showed a trend towards producing a more circular donor cut than the Barron punch, ie, 1.021 ± 0.022 versus 1.046 ± 0.039 (P = 0.445). The Hanna trephine was demonstrated to have a more consistent trephination angle than the Barron trephine when assessing light microscopy images, ie, ±14.39° (95% confidence interval [CI] 111.9-157.7) versus ±19.38° (95% CI 101.9-150.2, P = 0.492) and OCT images, ie, ±8.08° (95% CI 106.2-123.3) versus ±11.16° (95% CI 109.3-132.6, P = 0.306). The angle created by the Hanna punch had less variability than the Barron punch from both the light microscopy, ie, ±4.81° (95% CI 101.6-113.9) versus ±11.28° (95% CI 84.5-120.6, P = 0.295) and AS-OCT imaging, ie, ±9.96° (95% CI 95.7-116.4) versus ±14.02° (95% CI 91.8-123.7, P = 0.825). Statistical significance was not achieved. The Hanna trephine and punch may be more accurate and consistent in cutting corneal buttons than the Hessburg-Barron trephine and punch when evaluated using

  18. Comparison of Hanna and Hessburg-Barron trephine and punch systems using histological, anterior segment optical coherence tomography, and elliptical curve fitting models

    Science.gov (United States)

    Moshirfar, Majid; Calvo, Charles M; Kinard, Krista I; Williams, Lloyd B; Sikder, Shameema; Neuffer, Marcus C

    2011-01-01

    Background: This study analyzes the characteristics of donor and recipient tissue preparation between the Hessburg-Barron and Hanna punch and trephine systems by using elliptical curve fitting models, light microscopy, and anterior segment optical coherence tomography (AS-OCT). Methods: Eight millimeter Hessburg-Barron and Hanna vacuum trephines and punches were used on six cadaver globes and six corneal-scleral rims, respectively. Eccentricity data were generated using measurements from photographs of the corneal buttons and were used to generate an elliptical curve fit to calculate properties of the corneal button. The trephination angle and punch angle were measured by digital protractor software from light microscopy and AS-OCT images to evaluate the consistency with which each device cuts the cornea. Results: The Hanna trephine showed a trend towards producing a more circular recipient button than the Barron trephine (ratio of major axis to minor axis), ie, 1.059 ± 0.041 versus 1.110 ± 0.027 (P = 0.147) and the Hanna punch showed a trend towards producing a more circular donor cut than the Barron punch, ie, 1.021 ± 0.022 versus 1.046 ± 0.039 (P = 0.445). The Hanna trephine was demonstrated to have a more consistent trephination angle than the Barron trephine when assessing light microscopy images, ie, ±14.39° (95% confidence interval [CI] 111.9–157.7) versus ±19.38° (95% CI 101.9–150.2, P = 0.492) and OCT images, ie, ±8.08° (95% CI 106.2–123.3) versus ±11.16° (95% CI 109.3–132.6, P = 0.306). The angle created by the Hanna punch had less variability than the Barron punch from both the light microscopy, ie, ±4.81° (95% CI 101.6–113.9) versus ±11.28° (95% CI 84.5–120.6, P = 0.295) and AS-OCT imaging, ie, ±9.96° (95% CI 95.7–116.4) versus ±14.02° (95% CI 91.8–123.7, P = 0.825). Statistical significance was not achieved. Conclusion: The Hanna trephine and punch may be more accurate and consistent in cutting corneal buttons than

  19. Criteria for initiation of delamination in quasi-static punch-shear tests of a carbon-fiber composite material.

    Energy Technology Data Exchange (ETDEWEB)

    Chin, Eric Brian [Sandia National Lab. (SNL-CA), Livermore, CA (United States); English, Shawn Allen [Sandia National Lab. (SNL-CA), Livermore, CA (United States); Briggs, Timothy [Sandia National Lab. (SNL-CA), Livermore, CA (United States)

    2015-09-01

    V arious phenomenological delamination initiation criteria are analyzed in quasi - static punch - shear tests conducted on six different geometries. These six geometries are modeled and analyzed using elastic, large - deformation finite element analysis. Analysis output is post - processed to assess different delamination initiation criteria, and their applicability to each of the geometries. These criteria are compared to test results to assess whether or not they are appropriate based on what occurred in testing. Further, examinations of CT scans and ultrasonic images o f test specimens are conducted in the appendix to determine the sequence of failure in each test geometry.

  20. Highly sensitive photodetector based on ge double-barrier punch-through structure

    Directory of Open Access Journals (Sweden)

    Abdulkhaev O. A.

    2015-08-01

    Full Text Available In recent years, transmission and reception systems of optical signals are widely used. Receiving the optical signal in such systems is carried by photoreceiving modules based on a photodetector, which defines the quality of the received signal, the range and speed of the entire system. However, hitherto used p–i–n- and avalanche photodiodes do not fully meet the growing demands. The present work is devoted to investigate the photovoltaic characteristics of semiconductor thin base transistor structure based on germanium, which is superior the silicon counterparts by speed and gain. Investigated p+–n–p-structures were obtained by diffusion of antimony onto the substrate of p-type germanium to a depth of 1 micron and alloying of indium to the part of its surface which creates diffusion layer of ?+-type and with thickness of 0,5 microns. Experiments have shown that the reverse biasing of a single p+-n-emitter-base junction leads to a smooth increase in reverse current, at the same time when it is connected in series to forward biased collector p-n-junction there is a sharp increase in the current by voltage, giving properties of voltage surge suppressor. This behavior of the current-voltage characteristics can be explained by the punch-through effect when the space charge regions of the emitter junction and the space charge region of collector junction touch each other and the conditions are realized for double carrier injection into a fully depleted region of the transistor. At the same time giving small fixed voltages 0,1—0,15 V to the collector-base junction the output static characteristics can be received with an operating voltage of 3—3,5 V. A characteristic feature of the investigated transistor is that when the base region under illumination by integrated light intensity (50 and 3000 lux light current appears, whose magnitude with the increase of operating voltage (up to 1.7 V increases nonlinearly, resulting in increased

  1. MODERN METHODS OF DESIGN AND ARRANGEMENT OF RAMMING PILES IN PUNCHED HOLES

    Directory of Open Access Journals (Sweden)

    ZOTSENKO N. L.

    2015-10-01

    Full Text Available Problem statement. Ramming piles in punched holes (RPPH differ of high degree of use of supporting capacity of base because of forming in it a compacted zone at the expense of displacement of soil in the volume rammer and compacted material of expansion. The method of their construction almost exclude excavation and formwork, reducing the consumption of concrete, metal, accelerates zero cycle compared to the foundations raised and excavation and immersion into the soil of precast elements. The expansion of the normative base, their design and construction should be for further implementation of of natural objects. The correctness of the geomechanical model of plane and spatial version of finite element method (FEM should be proved for the calculation of cooperative work of RPPH as part of grillages with base. The most effective kinds of equipment and technological schemes of construction of RPPH should be noticed. Conclusions. The paper presents the main regulations on the design and the arrangement RPPH, corresponding of construction norms of Ukraine. The results of experimental and theoretical studies conducted by the authors for over thirty years, and the experience of the use of these piles on the objects of civil engineering, industrial and agricultural construction made their base. The use of the elastoplastic model with the criterion of Mohr-Coulomb strength for designing of the system "grillage -RPPH- soil" was substantiated. The designing in plane and spatial problems of FEM is proved that in the distance between the axes of adjacent piles up to five diameters is a correct choice of a flat version and simplifying of calculating scheme to the conventional strip foundation. An improved. The method of calculating of RPPH as part of grillages ribbon, where as the width of the foundation was taken a diameter of the broadening of the pile, and the depth of its inception corresponds to the bottom of it. The supporting layer of base under the

  2. Experimental Study on Effect of Karate Exercise on Anaerobic Capacity%空手道训练对人体无氧工作能力影响的实验研究

    Institute of Scientific and Technical Information of China (English)

    孙强; 刘健; 胡义忠

    2012-01-01

    In order to discuss the effect of karate exercise on anaerobic capacity, this paper makes 30s Wingate test on 24 elite kara- te players. The results showed: 1 )Karate exercise could improve the energy supply of phosphate and the anaerobic power value, quicken the velocity of startup, which had significant difference of different gender and training level ;2)The 30s Wingate test could reflect the anaerobic power value of elite karate players but it couldnt reflect the anaerobic capacity of elite karate players, so the test time should be prolonged;3)The weight affected the anaerobic power of 30s Wingate test. To impersonality evaluate the anaerobic capacity of elite karate players, the relative anaerobic power should be applied getting along with fatigue index and blood lactic acid.%为探讨空手道训练对人体无氧工作能力的影响,对24名优秀空手道运动员进行30sWingate无氧测试。实验结果表明:1)空手道训练可改善运动员磷酸原供能能力,提高无氧功率值和肌肉瞬间爆发力,加快启动速度,且具有明显的性别和训练水平差异;2)30sWingate无氧实验能明显反映空手道运动员无氧功率值,但不能明显反映运动员的无氧工作能力,测定时间应延长;3)30sWingate无氧实验中体重是无氧功率的重要影响因素,以功率相对值同时结合疲劳指数和运动前后血乳酸变化进行评价更为科学和客观。

  3. Studies on Punching Shear Resistance of Two Way Slab Specimens with Partial Replacement of Cement by GGBS with Different Edge Conditions

    Science.gov (United States)

    Nemani, Ravi Dakshina Murthy; Rao, M. V. S.; Grandhe, Veera Venkata Satya Naranyana

    2016-09-01

    The present work is an effort to quantify the punching shear load resistance effect on two way simply supported slab specimens with replacement of cement by Ground Granulated Blast Furnace Slag (GGBS) with different edge conditions at various replacement levels and evaluate its efficiency. GGBS replacement has emerged as a major alternative to conventional concrete and has rapidly drawn the concrete industry attention due to its cement savings, cost savings, environmental and socio-economic benefits. The two way slab specimens were subjected to punching shear load by in house fabricated apparatus. The slab specimens were cast using M30 grade concrete with HYSD bars. The cement was partially replaced with GGBS at different percentages i.e., 0 to 30 % at regular intervals of 10 %. The test results indicate that the two way slab specimens with partial replacement of cement by GGBS exhibit high resistance against punching shear when compared with conventional concretes slab specimens.

  4. Incidence and distribution of blood vessels in punch biopsies of Palmer 1A disc lesions in the wrist.

    Science.gov (United States)

    Unglaub, Frank; Kroeber, Markus W; Thomas, Susanne B; Wolf, Maya B; Arkudas, Andreas; Dragu, Adrian; Horch, Raymund E

    2009-05-01

    Although the partial excision of triangular fibrocartilage complex (TFCC) tears appears to be a clinically effective technique, little is known about the ability of the central disc tears to heal. Unlike peripheral tears, central tears do not have immediate access to blood supply. The purpose of this study was to examine the incidence and distribution of blood vessels in punch biopsies of symptomatic central TFCC tissue. In addition, the study investigated if arthroscopic debridement can reach vascularized tissue to enable a reparative response of the tear. Thirty-two patients with symptomatic central traumatic tears in the TFCC (Palmer 1A) were included in this study. The cartilage was debrided arthroscopically using a biopsy punch. The debrided tissue was then examined histologically. To visualize blood vessels, the histological sections were stained with CD 31 antibodies. The presence/absence of blood vessels was recorded on a qualitative level. In six patients, five or more blood vessels (CD31 positive endothelial cells) could be detected. In eight patients, fewer than five vessels could be found in the periphery of the slides. In 18 patients no vessels could be identified. The incidence of vessels in the outer region was higher than in the inner region of the peripheral area. There was no correlation found between the time of trauma and incidence of blood vessels (P > 0.05). Only in 43% of arthroscopic debridements of Palmer 1A tears vascularized tissue could be reached.

  5. An Overview of Using Small Punch Testing for Mechanical Characterization of MCrAlY Bond Coats

    Science.gov (United States)

    Chen, H.; Jackson, G. A.; Sun, W.

    2017-08-01

    Considerable work has been carried out on overlay bond coats in the past several decades because of its excellent oxidation resistance and good adhesion between the top coat and superalloy substrate in the thermal barrier coating systems. Previous studies mainly focus on oxidation and diffusion behavior of these coatings. However, the mechanical behavior and the dominant fracture and deformation mechanisms of the overlay bond coats at different temperatures are still under investigation. Direct comparison between individual studies has not yet been achieved due to the fragmentary data on deposition processes, microstructure and, more apparently, the difficulty in accurately measuring the mechanical properties of thin coatings. One of the miniaturized specimen testing methods, small punch testing, appears to have the potential to provide such mechanical property measurements for thin coatings. The purpose of this paper is to give an overview of using small punch testing to evaluate material properties and to summarize the available mechanical properties that include the ductile-to-brittle transition and creep of MCrAlY bond coat alloys, in an attempt to understand the mechanical behavior of MCrAlY coatings over a broad temperature range.

  6. Design and performance of a punch mechanism based pellet injector for alternative injection in the large helical device.

    Science.gov (United States)

    Mishra, J S; Sakamoto, R; Motojima, G; Matsuyama, A; Yamada, H

    2011-02-01

    A low speed single barrel pellet injector, using a mechanical punch device has been developed for alternative injection in the large helical device. A pellet is injected by the combined operation of a mechanical punch and a pneumatic propellant system. The pellet shape is cylindrical, 3 mm in diameter and 3 mm in length. Using this technique the speed of the pellet can be controlled flexibly in the range of 100-450 m/s, and a higher speed can be feasible for a higher gas pressure. The injector is equipped with a guide tube selector to direct the pellet to different injection locations. Pellets are exposed to several curved parts with the curvature radii R(c) = 0.8 and 0.3 m when they are transferred in guided tubes to the respective injection locations. Pellet speed variation with pressure at different pellet formation temperatures has been observed. Pellet intactness tests through these guide tubes show a variation in the intact speed limit over a range of pellet formation temperatures from 6.5 to 9.8 K. Pellet speed reduction of less than 6% has been observed after the pellet moves through the curved guide tubes.

  7. [Women boxing athletes' EMG of upper limbs and lumbar muscles in the training of air striking of straight punch].

    Science.gov (United States)

    Zhang, Ri-Hui; Kang, Zhi-Xin

    2011-05-01

    To study training effect of upper limbs and lumbar muscles in the proceed of air striking of straight punch by analyzing boxing athletes' changes of electromyogram (EMG). We measured EMG of ten women boxing athletes' upper arm biceps (contractor muscle), upper arm triceps (antagonistic muscle), forearm flexor muscle (contractor muscle), forearm extensor muscle (antagonistic muscle), and lumbar muscles by ME6000 (Mega Electronics Ltd.). The stipulated exercise was to do air striking of straight punch with loads of 2.5 kg of dumbbell in the hand until exhausted. In the proceed of exercise-induce exhausted, the descend magnitude and speed of median frequency (MF) in upper limb antagonistic muscle exceeded to contracting muscle, moreover, the work percentage showed that contractor have done a larger percentage of work than antagonistic muscle. Compared with world champion's EMG, the majority of ordinary athletes' lumbar muscles MF revealed non-drop tendency, and the work percentage showed that lumbar muscles had a very little percentage of work. After comparing the EMG test index in upper limb and lumbar muscle of average boxing athletes with that of the world champion, we find the testees lack of the training of upper limb antagonistic muscle and lumbar muscle, and more trainings aimed at these muscles need to be taken.

  8. Evaluation of the Punch-it™ NA-Sample kit for detecting microbial DNA in blood culture bottles using PCR-reverse blot hybridization assay.

    Science.gov (United States)

    Kim, Jungho; Wang, Hye-Young; Kim, Seoyong; Park, Soon Deok; Yu, Kwangmin; Kim, Hyo Youl; Uh, Young; Lee, Hyeyoung

    2016-09-01

    DNA extraction efficiency affects the success of PCR-based method applications. The Punch-it™ NA-Sample kit for extracting DNA by using paper chromatography is technically easy to use and requires just two reagents and only 10min to complete. The Punch-it™ NA-Sample kit could be offered as a rapid, accurate, and convenient method for extracting bacterial and fungal DNA from blood culture bottles. We compared the efficiencies of the commercial kit (Punch-it™ NA-Sample kit) and an in-house conventional boiling method with Chelex-100 resin for DNA extraction from blood culture bottles. The efficiency of the two DNA extraction methods was assessed by PCR-reverse blot hybridization assay (PCR-REBA, REBA Sepsis-ID) for detecting Gram positive (GP) bacteria, Gram negative (GN) bacteria, and Candida species with 196 positive and 200 negative blood culture bottles. The detection limits of the two DNA extraction methods were 10(3)CFU/mL for GP bacteria, 10(3)CFU/mL for GN bacteria, and 10(4)CFU/mL for Candida. The sensitivity and specificity of the Punch-it™ NA-Sample kit by REBA Sepsis-ID were 95.4% (187/196) and 100% (200/200), respectively. The overall agreement of the two DNA extraction methods was 98.9% (392/396). Three of four samples showing discrepant results between the two extraction methods were more accurately matched up with the Punch-it™ NA-Sample kit based on conventional culture methods. The results indicated that the Punch-it™ NA-Sample kit extracted bacterial and fungal DNA in blood culture bottles and allowed extracted DNA to be used in molecular assay. Copyright © 2016. Published by Elsevier B.V.

  9. WTF跆拳道与 KATA空手道技术比较研究%WTF Taekwondo and Karate Techniques KATA Comparative Study

    Institute of Scientific and Technical Information of China (English)

    张书军

    2015-01-01

    WTF Taekwondo and Karate KATA is rooted in Chinese martial arts, sports, using almost the opposite of technolo-gy development ideas, but have access to the promotion and recognition in the world.In this paper, comparative study from fight-ing against the technology type, attack techniques and routines can attack parts of the technology through the perspective of compe-tition rules, summed up the difference between the two martial arts sports technology system, and this differentially impact on pro-ject development, provide a reference for the Asian martial arts movement, especially the development of Chinese martial arts.%WTF跆拳道与KATA空手道是植根中国武术的运动项目,采用了几乎相反的技术发展思路,却均在世界范围内获得推广和认可。本文从对抗技术中的格斗式、攻击技术、可攻击部位和套路技术对这两种运动项目进行比较研究,归纳了两种武道运动技术体系的差异,以及这种差异对项目发展的影响,为亚洲武道运动特别是中华武术发展提供参考。

  10. Impact of Martial Arts (Judo, Karate, and Kung Fu) on Bone Mineral Density Gains in Adolescents of Both Genders: 9-Month Follow-Up.

    Science.gov (United States)

    Ito, Igor H; Kemper, Han C G; Agostinete, Ricardo R; Lynch, Kyle R; Christofaro, Diego G D; Ronque, Enio R; Fernandes, Rômulo A

    2017-09-22

    To compare bone mineral density (BMD) gains in adolescents of both genders stratified according to different martial art styles in a 9-month follow-up study. The longitudinal study consisted of 29 adolescents of both genders and age between 11 and 17 years stratified into a control group (not engaged in any sport) and 50 fighters (kung fu/karate, n = 29; judo, n = 21). All 79 subjects underwent anthropometric measures (weight, height, leg length, and height set) and dual-energy X-ray absorptiometry (BMD, in g/cm(2)) at 2 moments, baseline and 9 months later. Maturity offset (age at peak height velocity), lean soft tissue, chronological age, and resistance training were treated as covariates. Male judoists presented higher gains in BMD-spine [0.098 g/cm(2) (95% confidence interval, 0.068-0.128)] than control group [0.040 g/cm(2) (95% confidence interval, 0.011-0.069)] (post hoc test with P  = .030). There was no effect of martial art on BMD gains among girls. Independently of gender, in all multivariate models, lean soft tissue constituted the most relevant covariate. Judo practice in adolescents affected the bone accrual significantly after 9-month follow-up compared with controls, mainly in boys.

  11. Study of the mechanical properties of the electric power station components: the punch test; Etude des proprietes mecaniques des composants de centrales thermiques: l'essai punch test

    Energy Technology Data Exchange (ETDEWEB)

    Isselin, J

    2003-03-15

    The aging of the electric production park implies an increasing need of knowledge concerning the evolution of the mechanical properties of its components. With regard to this problem, the availability in material is more and more small. This work proposes to characterize these properties through a mechanical test called Punch test. The main characteristic of this test is to use very small volume samples. The development of this test has been carried out by the study of a 15 MDV 4-05 steel coming from a steam drum of a thermal power plant after 145000 hours of service. At first, we have measured the influence of the parameters of this test. Then, the study has dealt more particularly on the transition temperature of the material. With the finite element simulation method, the strain hardening coefficient of the material has been determined. (O.M.)

  12. Automated washing of FTA Card punches and PCR setup for reference samples using a LIMS-controlled Sias Xantus automated liquid handler

    DEFF Research Database (Denmark)

    Stangegaard, Michael; Olsen, Addie Nina; Frøslev, Tobias G.;

    2009-01-01

    We have implemented and validated automated methods for washing FTA Card punches containing buccal samples and subsequent PCR setup using a Sias Xantus automated liquid handler. The automated methods were controlled by worklists generated by our LabWare Laboratory Information Management System (L...

  13. The Influence of the Punched Delta Wings on Flow Pattern and Heat Transfer Characteristic in a Fin-and-Oval-Tube Heat Exchanger

    Directory of Open Access Journals (Sweden)

    Amnart Boonloi

    2015-01-01

    Full Text Available 3D numerical investigations are performed to study the heat transfer, friction factor, and thermal performance of a fin-and-oval heat exchanger with punched delta wings for a range of 500 ≤ Re ≤ 2500 (based on the hydraulic diameter. The influences of the punched angles, 20°, 30°, and 45°, flow directions, wing tips pointing downstream and upstream, and pitch ratios, 2, 3, 4, 5, and 6, are investigated. The results show that the use of the punched delta wings in the fin-and-oval-tube heat exchanger leads to an enhancement in the heat transfer and friction loss as compared to the plain fin for all cases (Nu/Nu0 and f/f0 higher than 1. The enhancements of the heat transfer and friction factor are around 1.01–1.22 and 1.37–2.65 times higher than the base case, respectively. The punched delta wings create the vortex flows through the test section that helps enhance the strength of the impinging flow on the tube walls. The impingement of the fluid flow is an important key to augment the heat transfer rate and thermal performance in the heat exchanger.

  14. PLC control of JH23- 63 punch press%JH23- 63型冲床的 PLC控制

    Institute of Scientific and Technical Information of China (English)

    赵升吨; 王二郎; 尚春阳; 闫伍超; 史维祥

    2001-01-01

    在简述冲床电气传统继电器——接触器控制方法存在问题的基础上,指出了对其进行 PLC控制的必要性。对 JH23- 63型冲床新旧两种控制方案进行了全面深入的分析,并建立了 PLC硬件接线方案和梯形图。在实际中成功地完成了该冲床的 PLC控制。%On the basis of briefly expounding traditional relay- contactor control method of the punch press electrical appliances, necessity with the PLC control for punch press is pointed out. PLC control properties of two kinds of control scheme for JH23- 63 punch press electrical appliances are comprehensively and thoroughly analyzed. Hardware wiring diagram and ladder diagram for the punch press PLC are established .In the light of above studies, PLC control of the press is successfully accomplished in practice.

  15. Bending and Twisting Springback Prediction in the Punching of the Core for a Lattice Truss Sandwich Structure

    Institute of Scientific and Technical Information of China (English)

    Wenchun JIANG; Bin YANG; Xuewei GUAN; Yun LUO

    2013-01-01

    The finite element method was used to study the springback induced by the punching of the core.In order to simulate the springback accurately,a mixed isotropic-nonlinear kinematic hardening model is used to define the material mechanical behavior during plastic deformation.The effects of the friction coefficient,the plate thickness and the die radius have been investigated.The results show that the springback of the sheet with diamond hole is different from the homogenous sheet.Not only bending springback,but also a twisting springback along the truss is generated because of the non-uniform distribution of the bending stress along the truss length.The plate thickness should be around 1.3 mm with larger friction coefficient and smaller die radius,which is useful to decrease the bending and twisting springback.

  16. Foulant analysis of hollow fine fiber (HFF) membranes in Red Sea SWRO plants using membrane punch autopsy (MPA)

    KAUST Repository

    Green, Troy N.

    2017-06-12

    Membrane punch autopsy (MPA) is a procedure for quantitative foulant analysis of hollow fine fiber (HFF) permeators. In the past, quantitative autopsies of membranes were restricted to spiral wound. This procedure was developed at SWCC laboratories and tested on permeators of two commercial Red Sea reverse osmosis plants. For membrane autopsies, stainless steel hollow bore picks were penetrated to membrane cores and fibers extracted for foulant analysis. Quantitative analysis of extracted materials contained inorganic and organic foulants including bacteria. Fourier transform infrared spectroscopy analysis confirmed the presence of organic fouling functional groups and scanning electron microscopy with energy dispersive X-ray spectroscopy in the presence of diatoms and silica most likely not from particulate sand. API analysis revealed the presence of Shewanella and two Vibrio microbial species confirmed by 16S rDNA sequence library. It was observed that fouling content of HFF cellulose triacetate (CTA) membranes were more than 800 times than polyamide spiral wound membranes.

  17. Effect of trephination technique on the ultrastructure of corneal transplants: guided trephine system v posterior punch technique

    Science.gov (United States)

    Radner, W; Skorpik, C.; Loewe, R; Mudrich, C; Radner, G; Mallinger, R

    1999-01-01

    AIM—Different trephination methods may lead to differences in degree of tissue damage and endothelial cell loss, which both influence the outcome of penetrating keratoplasty. Light, transmission, and scanning electron microscopy were used to compare the ultrastructural appearance of the cut edges and the endothelial cell loss in 26 human corneal donor buttons obtained by trephination with the suction fixated guided trephine system (GTS) and with the free hand posterior punch technique (PPT).
METHODS—Human corneas were stored between 5 and 14 days in Optisol. One cornea from each pair was used for each technique. Trephinations (7.5 mm) were performed either from the anterior direction with the GTS (n=13) or from the posterior direction with the PPT (n=13) using Pharmacia Superblade trephines. Light microscopy, transmission electron, and scanning electron microscopy were performed according to standard procedures. Widening of the cut edges and the extent of endothelial cell loss were measured at three different areas per corneal button and analysed statistically.
RESULTS—In contrast with the PPT, the GTS trephine produced considerable fibrillar disorder at the cut edges of the corneal buttons. The distance to which the endothelial cell loss extended from the edges of the cuts was significantly (ptrephination techniques produced only minor tissue damage. Nevertheless, there were distinct differences in the fine appearance of the cuts produced by the GTS and the PPT techniques. The extent of the fibrillar dislocation and stromal widening was greater at the edges of the GTS buttons. The GTS technique produced significantly less endothelial cell loss at the cut edges than did the free hand punching technique, PPT.

 PMID:10502581

  18. 上海市青少年空手道俱乐部发展现状及对策研究%On the Developing Conditions and Countermeasures of Shanghai Teenager Karate Clubs

    Institute of Scientific and Technical Information of China (English)

    马康利; 程华

    2015-01-01

    文章采用文献资料法、专家咨询法、问卷调查法、数据统计法、访谈法等研究方法,对上海市空手道俱乐部发展现状进行调查分析。通过对上海市8家空手道俱乐部及其学员、教练员等三方面现状抽查分析,以及查阅相关研究文献,发现目前空手道俱乐部存在政府推入不足,缺乏市场推广;大众空手道市场化不规范,管理制度不完善;裁判员、教练员专业水平不高等不足之处。研究提出:从政府管理机构和行业主管部门加强管理、建立和完善俱乐部自身管理制度、注重俱乐部的宣传等建议。%This essay addresses research and analysis on the current situation of development of teenager Karate clubs in Shanghai by means of literature method,experts consultancy method, questionnaire survey method, data statistics method ,interview method and etc. By analyzing the condition of 8 Karate clubs about their students and coaches, and also analyzes the literature to conclude that shanghai karate clubs lack of government publicity, marketing promotion; mass karate market is not standard, with the incomplete administration, lower level of coaches and judges. The study shows the administration of governmental agencies and industrial management need to be improved, the rules of administration need to be established and completed, and the publicity needs to pay more attention to the sport.

  19. Resultados de la técnica de karate prechop en la cirugía de catarata por facoemulsificación: Instituto Cubano de Oftalmología “Ramón Pando Ferrer”, 2002-2004 Results of karate prechop technique in cataract surgery using phacoemulsification in “Ramón Pando Ferrer” Cuban Institute of Ophthalmology, 2002-2004

    Directory of Open Access Journals (Sweden)

    Juan Raúl Hernández Silva

    2006-06-01

    Full Text Available En Cuba desde el año 2000 se introdujeron nuevas técnicas quirúrgicas para el tratamiento de la catarata, y se han publicado trabajos valorando diferentes prácticas para realizar la cirugía de catarata. Con la realización de este trabajo, se pretende determinar los resultados de la técnica de karate prechop en la facoemulsificación. Se realizó un estudio descriptivo, prospectivo de de corte transversal, cuyo universo estuvo constituido por todos los pacientes (ojos con diagnóstico de catarata presenil y senil que recibieron tratamiento quirúrgico con la técnica karate prechop por facoemulsificación en el Centro de Microcirugía Ocular (CMO desde enero de 2002 hasta enero 2004. Se seleccionó una muestra mediante un muestreo simple aleatorio de 198 pacientes. La mayoría de los pacientes estudiados poseían más de 60 años de edad. La agudeza visual con corrección alcanzada mejoró como promedio en 4 líneas en la cartilla de Snellen, con un astigmatismo inducido promedio de 0,29 D. El tiempo promedio de ultrasonido utilizado fue de 1,26 min, proporcional a la dureza del núcleo. El número de complicaciones fue bajo, las más frecuentes fueron la ruptura de cápsula posterior y la salida de vítreoSince 2000, new surgical procedures for the extraction of cataract had been implemented, thus a number of papers that assess different practices for this end have been published. This paper was aimed at determining the results of karate prechop technique in phacoemulsification. A prospective cross-sectional descriptive study was performed in which the universe of study was made up of all the patients (eyes diagnosed with presenile and senile cataract and surgically treated with karate prechop technique using phacoemulsification from January 2000 to January 2004 at the Ocular Microsurgery Center . A simple randomized sampling provided a selected sample of 198 patients. The majority of these people were over 60 years. Corrected visual

  20. 低成色白色金合金的性能试验%Test on performance of low karat white gold alloy

    Institute of Scientific and Technical Information of China (English)

    袁军平; 陈德东; 陈令霞; 陈绍兴; 王昶

    2016-01-01

    With the change of the age structure of consumers and the sales mode,the low karat gold alloy is grad-ually becoming a new trend of the karat gold jewelry market. In this paper,10K white gold alloy was chosen as the ex-perimental material,its physical,chemical and processing performances were detected by methods of casting filling, DTA,Archimedes flotage, colourmetry, accelerated corrosion, high temperature oxidization and cold working. The re-sults show that when the alloy contains 41. 7% to 42% Au,11% to 14% Ni,33% to 36% Cu,9% to 13% Zn, 0. 05 % to 0. 3 % Si,0. 005 % to 0. 05 % B,its melting temperature range is below 37 ℃ and the castability is per-fect,with the sieve filling rate of 98%;the alloy''s yellowness index is below 19 while its whiteness reaches level 1,and it has excellent sulphide discoloration resistance and resistance to high temperature oxidization; the alloy has high o-riginal hardness,while its work-hardening rate is moderate,which is beneficial for cold working production and wear resistance of jewelry surface.%随着消费群体年龄结构和销售模式的变化,低成色金合金逐渐成为K金首饰市场的一个新方向. 该文以10 K白色金合金为研究材料,采用铸造充填法、差热分析法、静水密度法、测色法、加速腐蚀法、高温氧化法、冷变形法等检测了试验合金的物理性能、化学性能及加工制作性能. 试验结果表明:当合金中有41 . 7 % ~42 %金、11 % ~14 %镍、33 % ~36 %铜、9 % ~13 %锌、0 . 05 % ~0 . 3 %硅、0 . 005 % ~0 . 05 %硼时,其熔化温度变化范围在37 ℃以下,筛网充填率达到98 %,有较好的铸造性能;合金的黄度指数低于19 ,达到1级白色,具有优良的抗硫化变色性能及抗高温氧化性能;合金的初始硬度较高,加工硬化速率适中,有利于进行冷加工生产和首饰表面耐磨损.

  1. Comparison of Hanna and Hessburg-Barron trephine and punch systems using histological, anterior segment optical coherence tomography, and elliptical curve fitting models

    Directory of Open Access Journals (Sweden)

    Moshirfar M

    2011-08-01

    Full Text Available Majid Moshirfar1, Charles M Calvo2, Krista I Kinard1, Lloyd B Williams1, Shameema Sikder3, Marcus C Neuffer11University of Utah, Department of Ophthalmology and Visual Sciences, Salt Lake City, UT, USA; 2University of Nevada, School of Medicine, Las Vegas, NV, USA; 3Wilmer Eye Institute, Johns Hopkins University, Baltimore, MD, USABackground: This study analyzes the characteristics of donor and recipient tissue preparation between the Hessburg-Barron and Hanna punch and trephine systems by using elliptical curve fitting models, light microscopy, and anterior segment optical coherence tomography (AS-OCT.Methods: Eight millimeter Hessburg-Barron and Hanna vacuum trephines and punches were used on six cadaver globes and six corneal-scleral rims, respectively. Eccentricity data were generated using measurements from photographs of the corneal buttons and were used to generate an elliptical curve fit to calculate properties of the corneal button. The trephination angle and punch angle were measured by digital protractor software from light microscopy and AS-OCT images to evaluate the consistency with which each device cuts the cornea.Results: The Hanna trephine showed a trend towards producing a more circular recipient button than the Barron trephine (ratio of major axis to minor axis, ie, 1.059 ± 0.041 versus 1.110 ± 0.027 (P = 0.147 and the Hanna punch showed a trend towards producing a more circular donor cut than the Barron punch, ie, 1.021 ± 0.022 versus 1.046 ± 0.039 (P = 0.445. The Hanna trephine was demonstrated to have a more consistent trephination angle than the Barron trephine when assessing light microscopy images, ie, ±14.39° (95% confidence interval [CI] 111.9–157.7 versus ±19.38° (95% CI 101.9–150.2, P = 0.492 and OCT images, ie, ± 8.08° (95% CI 106.2–123.3 versus ± 11.16° (95% CI 109.3–132.6, P = 0.306. The angle created by the Hanna punch had less variability than the Barron punch from both the light microscopy

  2. 我国高校开展空手道运动的必要性研究%Necessity of Development of Karate in Colleges and Universities in China

    Institute of Scientific and Technical Information of China (English)

    刘华

    2012-01-01

    Meaning and necessity of introducing Karate into college sports teaching are discussed. The followings are conclusions: introducing karate sports is fit for the sunshine sports, satisfy the needs of education reform and can also enrich the contents of Physical Education course. The students can experience shool lives fun of good healthy, good self protection, active crisis awareness and good psychological pressure adjusting ability.%讨论了在我国大学体育教学中引入空手道项目的意义和必要性,认为,在我国高校体育教学中引入空手道运动项目,符合阳光体育精神,能满足高校体育课程教学改革的需要,能丰富普通高校体育课程教学内容,能让学生体验健康体魄、良好自我保护能力,积极主动的危机意识、良好的心理压力调节能力的学习生活乐趣.

  3. The Feasibility of Karate Carried out in Colleges in Anhui Province%空手道运动在安徽省高校开展的可行性研究

    Institute of Scientific and Technical Information of China (English)

    张庆珍

    2012-01-01

    Through using the method of literature,the paper discusses the karate movement development status in Anhui province,combined with college sports curriculum reform,to make karate responsive to college students fitness needs,help students perfect personality,enhancement with standing setback and the ability to adapt to the environment.It will play a positive role in promoting the quality education of college students and their lifelong physical exercise.%文章运用文献资料研究方法对安徽省高校空手道运动发展状况进行论述,结合高校体育课程改革的契机,使空手道运动顺应大学生健身需求,帮助大学生健全人格、增强承受挫折和适应环境的能力,对大学生的素质教育和终身体育锻炼都会起到积极的促进作用。

  4. 合金元素对K白金首饰合金性能影响的探讨%Investigation of Alloy Elements on Influence of Karat White Gold Jewelry Alloy Performance

    Institute of Scientific and Technical Information of China (English)

    申柯娅

    2011-01-01

    K白金的强度高、铸造性能好,在首饰业被广泛用作铂金的替代品.但K白金的合金成分对K白金首饰的合金性能会产生很大的影响,通过实验研究了不同成分和含量的合金元素对K白金的密度、颜色、硬度和加工硬化的影响,提出了K白金补口材料的性能要求.%Karat white gold is widely used as a substitute of platinum because of its high strength and good cast ability, but alloy elements within Karat white gold have obvious influence upon jewelry alloy performance. The influence of different alloy elements and different contents upon density, color, hardness, work hardening behaviour was studied through experimentats, and then the performance of master alloys was recommended.

  5. The design of the center hole punch%关于中心打孔机的设计研究

    Institute of Scientific and Technical Information of China (English)

    聂荣臻; 曹建中

    2014-01-01

    The utility model relates to a center punch, including chassis, motor, rail, and two compressive bar inside the casing has stated push block, the top of the chassis with a nut, one end of the screw nut, through the top of the chassis and blocks are linked together, motor guide rail and the casing is fixed, the motor seat by machine guide rail and slide casing connection, motor seat is, the output of the motor connection power head; As described in the lower end of the block with a roller, block in the middle of the bilateral symmetry runs up two chute, each one end of the push rod is equipped with guide wheel, guide wheel sliding inside the chute, each lever through back to resellers and chassis rotation connection, in the middle of each lever and on the other side of the roller. Center punching machine of the utility model not only can fast clamping workpiece, three fast clamping, automatic centering, the purpose of realizing automatic centering.%本实用新型涉及一种中心打孔机,包括机壳、电机座、电机导轨和两个压杆,所述机壳内具有推块,机壳的顶部具有螺母,螺杆的一端通过螺母穿过机壳的顶部与推块相连,电机导轨与机壳固定连接,电机座通过电机导轨与机壳滑动连接,电机座内具有电机,电机的输出端连接有动力头;所述推块的下端具有滚轮,推块的中部两侧对称开有向上的两个斜槽,每个压杆的一端装有导向轮,导向轮在斜槽内滑动,每个压杆的中部通过回转销与机壳转动连接,每个压杆的另一端也均装有滚轮。本实用新型的中心打孔机,不仅能快速的夹紧工件,三点快速夹紧,自动定心,实现自动打中心孔的目的。

  6. Quantification of the brittle-ductile failure behavior of reactor steels by means of the small punch tests and micromechanical damage models; Quantifizierung des sproed-duktilen Versagensverhaltens von Reaktorstaehlen mit Hilfe des Small-Punch-Tests und mikromechanischer Schaedigungsmodelle

    Energy Technology Data Exchange (ETDEWEB)

    Linse, Thomas

    2013-02-25

    This work comprises the development and implementation of a non-local ductile damage model, the application of methods for the identification of material parameters from experimental data as well as the calculation of fracture mechanics parameters in the brittle-ductile transition zone through numerical simulations of fracture mechanical tests using the identified parameters. The developed non-local ductile damage model is based on the Gurson-Tvergaard- Needleman model (GTN). The pathological mesh sensitivity of the GTN model is eliminated by introducing an additional length parameter by means of an implicit gradient formulation. To solve the coupled field problem, the non-local damage model is implemented in a finite element program in the form of a userdefined element. Force-displacement-curves of the small punch test (SPT), a miniaturised test, are evaluated for the determination of material parameters. Given the modest material requirements for the preparation of the required samples remnants of Charpy-specimens are reused. Two ferritic reactor steels, both irradiated and unirradiated, are examined. The experiments cover the full brittle-ductile transition region of the steels. Following the concept of the Local Approach, fracture toughness values are determined by numerical calculation of the stress and deformation state in fracture mechanics specimen only. Here, the yield curves and damage parameters previously determined from the SPT are used. The calculated fracture toughness values are compared with experimental results.

  7. Small punch tensile/fracture test data and 3D specimen surface data on Grade 91 ferritic/martensitic steel from cryogenic to room temperature.

    Science.gov (United States)

    Bruchhausen, Matthias; Lapetite, Jean-Marc; Ripplinger, Stefan; Austin, Tim

    2016-12-01

    Raw data from small punch tensile/fracture tests at two displacement rates in the temperature range from -196 °C to room temperature on Grade 91 ferritic/martensitic steel are presented. A number of specimens were analyzed after testing by means of X-ray computed tomography (CT). Based on the CT volume data detailed 3D surface maps of the specimens were established. All data are open access and available from Online Data Information Network (ODIN)https://odin.jrc.ec.europa.eu. The data presented in the current work has been analyzed in the research article "On the determination of the ductile to brittle transition temperature from small punch tests on Grade 91 ferritic-martensitic steel" (M. Bruchhausen, S. Holmström, J.-M. Lapetite, S. Ripplinger, 2015) [1].

  8. Plane contact problem on indentation of a flat punch into a transversely-isotropic half-plane with functionally graded transversely-isotropic coating

    Science.gov (United States)

    Vasiliev, A. S.; Volkov, S. S.; Aizikovich, S. M.; Mitrin, B. I.

    2017-02-01

    Plane contact problem of the theory of elasticity on indentation of a non-deformable punch with a flat base into an elastic transversely-isotropic half-plane with a transversely-isotropic functionally graded coating is considered. Elastic moduli of the coating vary with depth according to arbitrary functions. An approximated analytical solution effective for a whole range of geometrical parameter (relative layer thickness) of the problem is constructed. Some properties of the contact normal pressure under the punch are obtained analytically and illustrated by the numerical examples for a transversely-isotropic homogeneous and functionally graded coatings with different types of variation of elastic moduli with depth. The distinctions in distribution of contact normal pressure for homogeneous and functionally graded materials, coated and non-coated bodies are studied analytically and numerically.

  9. Efficacy of punch elevation combined with fractional carbon dioxide laser resurfacing in facial atrophic acne scarring: A randomized split-face clinical study

    Directory of Open Access Journals (Sweden)

    Gita Faghihi

    2015-01-01

    Full Text Available Background: A number of treatments for reducing the appearance of acne scars are available, but general guidelines for optimizing acne scar treatment do not exist. The aim of this study was to compare the clinical effectiveness and side effects of fractional carbon dioxide (CO 2 laser resurfacing combined with punch elevation with fractional CO 2 laser resurfacing alone in the treatment of atrophic acne scars. Materials and Methods: Forty-two Iranian subjects (age range 18-55 with Fitzpatrick skin types III to IV and moderate to severe atrophic acne scars on both cheeks received randomized split-face treatments: One side received fractional CO 2 laser treatment and the other received one session of punch elevation combined with two sessions of laser fractional CO 2 laser treatment, separated by an interval of 1 month. Two dermatologists independently evaluated improvement in acne scars 4 and 16 weeks after the last treatment. Side effects were also recorded after each treatment. Results: The mean ± SD age of patients was 23.4 ± 2.6 years. Clinical improvement of facial acne scarring was assessed by two dermatologists blinded to treatment conditions. No significant difference in evaluation was observed 1 month after treatment (P = 0.56. Their evaluation found that fractional CO 2 laser treatment combined with punch elevation had greater efficacy than that with fractional CO 2 laser treatment alone, assessed 4 months after treatment (P = 0.02. Among all side effects, coagulated crust formation and pruritus at day 3 after fractional CO 2 laser treatment was significant on both treatment sides (P < 0.05. Conclusion: Concurrent use of fractional laser skin resurfacing with punch elevation offers a safe and effective approach for the treatment of acne scarring.

  10. Quantitation of dopamine, serotonin and adenosine content in a tissue punch from a brain slice using capillary electrophoresis with fast-scan cyclic voltammetry detection.

    Science.gov (United States)

    Fang, Huaifang; Pajski, Megan L; Ross, Ashley E; Venton, B Jill

    2013-01-01

    Methods to determine neurochemical concentrations in small samples of tissue are needed to map interactions among neurotransmitters. In particular, correlating physiological measurements of neurotransmitter release and the tissue content in a small region would be valuable. HPLC is the standard method for tissue content analysis but it requires microliter samples and the detector often varies by the class of compound being quantified; thus detecting molecules from different classes can be difficult. In this paper, we develop capillary electrophoresis with fast-scan cyclic voltammetry detection (CE-FSCV) for analysis of dopamine, serotonin, and adenosine content in tissue punches from rat brain slices. Using field-amplified sample stacking, the limit of detection was 5 nM for dopamine, 10 nM for serotonin, and 50 nM for adenosine. Neurotransmitters could be measured from a tissue punch as small as 7 µg (7 nL) of tissue, three orders of magnitude smaller than a typical HPLC sample. Tissue content analysis of punches in successive slices through the striatum revealed higher dopamine but lower adenosine content in the anterior striatum. Stimulated dopamine release was measured in a brain slice, then a tissue punch collected from the recording region. Dopamine content and release had a correlation coefficient of 0.71, which indicates much of the variance in stimulated release is due to variance in tissue content. CE-FSCV should facilitate measurements of tissue content in nanoliter samples, leading to a better understanding of how diseases or drugs affect dopamine, serotonin, and adenosine content.

  11. The tabletting machine as an analytical instrument: qualification of the measurement devices for punch forces and validation of the calibration procedures.

    Science.gov (United States)

    Belda, P M; Mielck, J B

    1998-11-01

    The quality of force measurement in an eccentric tabletting machine equipped with piezo-electric load washers mounted under pre-stress at the upper and lower punches, and the reliability of their calibration in situ and under working conditions were carefully investigated, since this tabletting machine is used as an 'analytical instrument' for the evaluation of the compression behaviour of pharmaceutical materials. For a quasistatic calibration procedure the repeatability under standard conditions and the robustness against variations in machine settings, installation conditions, equipment and handling were evaluated. Two differently constructed reference load cells equipped with strain gauges were used for the calibration of the upper punch sensor. The lower punch sensor was calibrated against the upper one. Except for a mechanical hysteresis, owing to uneven stress distribution over the piezo-electric sensors, the results of the quasistatic measurements are assessed to be satisfactory. In addition, dynamic calibrations were performed. One of the strain-gauged load cells was used in addition to two piezo-electric load washers installed without pre-stress. The dynamic behaviour of all the transducers used is deficient. While for the piezo-electric sensors a significant change in the slope of the calibration function with respect to the quasistatic behaviour was observed, for the strain-gauged load cell a pronounced hysteresis must be noted. Comparing the dynamic behaviour at different profiles of rates of force development generated by variations in machine speed and by maximum force setting, the variability in the sensitivity of the upper and lower punch piezo-electric load washers is comparatively small.

  12. Automated washing of FTA Card punches and PCR setup for reference samples using a LIMS-controlled Sias Xantus automated liquid handler

    DEFF Research Database (Denmark)

    2009-01-01

    We have implemented and validated automated methods for washing FTA Card punches containing buccal samples and subsequent PCR setup using a Sias Xantus automated liquid handler. The automated methods were controlled by worklists generated by our LabWare Laboratory Information Management System (L...... (LIMS). The protocols were validated according to EN/ISO 17025 for use with STR amplifications kits AmpFlSTR« Identifiler« and Y-filer« (Applied Biosystems)...

  13. Effect of Chord Splice Joints on Force Distribution and Deformations in Trusses with Punched Metal Plate Fasteners

    DEFF Research Database (Denmark)

    Ellegaard, Peter

    2007-01-01

    The span of roof trusses with punched metal plate fasteners (nail plates) makes it often necessary to use splice joints in the top and bottom chords. In the finite element models used for design of the trusses these splice joints are normally assumed to be either rotationally stiff or pinned - th...... of splice joints on section forces and displacements are discussed considering the results from finite element calculations for a fink truss. It seems that the guidelines for treating splice joints as rotationally stiff do not necessarily lead to more realistic truss models....... - their real behaviour is semi-rigid. The influence of splice joints on the distribution of member forces and rotations in the splice joints is investigated in this paper. A finite element program, TrussLab, where the splice joints are given semi-rigid properties is used to analyse the effect of splice joints...... if their deformation has no significant effect upon the distribution of member forces according to Eurocode 5. Two simple guidelines for the design and location of splice joints are given in Eurocode 5 for treating the splice joints as rotationally stiff. The reasonability of these guidelines and the influence...

  14. Evaluation of ductile-brittle transition behavior with neutron irradiation in nuclear reactor pressure vessel steels using small punch test

    Energy Technology Data Exchange (ETDEWEB)

    Kim, M. C.; Lee, B. S. [KAERI, Taejon (Korea, Republic of); Oh, Y. J. [Hanbat National Univ., Taejon (Korea, Republic of)

    2003-10-01

    A Small Punch (SP) test was performed to evaluate the ductile-brittle transition temperature before and after neutron irradiation in Reactor Pressure Vessel (RPV) steels produced by different manufacturing (refining) processes. The results were compared to the standard transition temperature shifts from the Charpy test and Master Curve fracture toughness test in accordance with the ASTM standard E1921. The samples were taken from 1/4t location of the vessel thickness and machined into a 10x10x0.5mm dimension. Irradiation of the samples was carried out in the research reactor at KAERI (HANARO) at about 290 .deg. C of the different fluence levels respectively. SP tests were performed in the temperature range of RT to -196 .deg. C using a 2.4mm diameter ball. For the materials before and after irradiation, SP transition temperatures (T{sub sp}), which are determined at the middle of the upper and lower SP energies, showed a linear correlation with the Charpy index temperature, T{sub 41J}. T{sub sp} from the irradiated samples was increased as the fluence level increased and was well within the deviation range of the unirradiated data. The TSP had a correlation with the reference temperature (T{sub 0}) from the master curve method using a pre-cracked Charpy V-notched (PCVN) specimen.

  15. Semi-automatic identification of punching areas for tissue microarray building: the tubular breast cancer pilot study

    Directory of Open Access Journals (Sweden)

    Beltrame Francesco

    2010-11-01

    Full Text Available Abstract Background Tissue MicroArray technology aims to perform immunohistochemical staining on hundreds of different tissue samples simultaneously. It allows faster analysis, considerably reducing costs incurred in staining. A time consuming phase of the methodology is the selection of tissue areas within paraffin blocks: no utilities have been developed for the identification of areas to be punched from the donor block and assembled in the recipient block. Results The presented work supports, in the specific case of a primary subtype of breast cancer (tubular breast cancer, the semi-automatic discrimination and localization between normal and pathological regions within the tissues. The diagnosis is performed by analysing specific morphological features of the sample such as the absence of a double layer of cells around the lumen and the decay of a regular glands-and-lobules structure. These features are analysed using an algorithm which performs the extraction of morphological parameters from images and compares them to experimentally validated threshold values. Results are satisfactory since in most of the cases the automatic diagnosis matches the response of the pathologists. In particular, on a total of 1296 sub-images showing normal and pathological areas of breast specimens, algorithm accuracy, sensitivity and specificity are respectively 89%, 84% and 94%. Conclusions The proposed work is a first attempt to demonstrate that automation in the Tissue MicroArray field is feasible and it can represent an important tool for scientists to cope with this high-throughput technique.

  16. Magnesium, zinc, and copper status in women involved in different sports.

    Science.gov (United States)

    Nuviala, R J; Lapieza, M G; Bernal, E

    1999-09-01

    The dietary intake, serum levels, and urinary excretion of magnesium, zinc, and copper were studied in 78 women involved in different sports (karate, handball, basketball, and running) and in 65 sedentary women. Seven-day, weighed-food dietary reports revealed that no group of female athletes reached the minimal intake recommended for magnesium (280 mg/day) and zinc (12 mg/day), although their values were superior to those of the control group. The estimated safe and adequate minimal intake of copper (1.5 mg/day) was amply surpassed by the basketball players and runners but was not reached by the handball players. Serum levels and urinary excretion of magnesium, zinc and copper di not seem related either to their intake or to the type of physical activity performed. The influence of other factors such as nutritional status, bioavailability, intestinal absorption mechanisms, and muscle-level modifications might explain the differences between the different groups of female athletes.

  17. Molecular size and net charge of pathogenesis-related enzymes from barley (Hordeum vulgare L., v. Karat) infected with Drechslera teres f. teres (Sacch.) Shoem.

    Science.gov (United States)

    Rothe, G M; Welschbillig, N; Reiss, E

    1998-05-01

    Molecular size and net charge of isoforms of pathogenesis-related (PR) chitinase, beta-1,3-glucanase and peroxidase were studied in uninfected barley (Hordeum vulgare L., v. Karat) leaves and in barley leaves infected with the pathogenic fungus Drechslera teres f. teres (Sacch.) Shoem. Molecular characteristics were determined by time-dependent polyacrylamide gradient gel electrophoresis under native conditions and by applying an extended version of the computer program MOL-MASS (Rothe, G. M., Weidmann, H., Electrophoresis 1991, 12, 703-709). Uninfected barley leaves contained predominantly one peroxidase isozyme but also three very weak peroxidases. Activities of all of these three peroxidases increased considerably after infection with Drechslera teres. The molecular masses of peroxidases 1 and 3 were estimated to be 38 +/- 5 and 42 +/- 7 kDa and their apparent valences at pH 8.4 were Z = 3.13 and 3.20, respectively. Amongst the chitinase isoforms, chitinase 1 and chitinase 2 appeared after infection, while chitinase 3 was also observed in uninfected leaves of barley. The molecular mass of chitinase 3 (31 +/- 6 kDa; f/fo = 1.20) was larger than that of chitinase 1 (20 +/- 2 kDa; f/fo = 1.04) and chitinase 2 (23 +/- 3 kDa; f/fo = 1.06). The valence of constitutive chitinase 3 (Z = 1.44 +/- 0.81) at pH 8.4 was lower than that of adaptive chitinase 1 (Z = 3.27 +/- 1.02) and chitinase 2 (Z = 2.96 +/- 1.38). Infection of barley leaves with Drechslera teres also induced the hydrolytic enzyme beta-1,3-glucanase 1; beta-1,3-glucanase 2 appeared in uninfected and in infected leaves. Constitutive beta-1,3-glucanase 2 was smaller (molecular mass 19 +/- kDa; f/fo = 1.05) than adaptive beta-1,3-glucanase 1 (molecular mass 26 +/- 4 kDa; f/fo = 1.07). The valence of adaptive beta-1,3-glucanase 1 (Z = 9.58 +/- 4.17) was approximately threefold that of beta-1,3-glucanase 2 (Z = 2.80 +/- 0.93).

  18. Theory of Optimal Human Motion

    Science.gov (United States)

    Chan, Albert Loongtak

    1990-01-01

    This thesis presents optimal theories for punching and running. The first is a theory of the optimal karate punch in terms of the duration and the speed of the punch. This theory is solved and compared with experimental data. The theory incorporates the force vs velocity equation (Hill's eq.) and Wilkie's equation for elbow flexation in determining the optimal punch. The time T and the final speed of the punch are dependent on a few physiological parameters for arm muscles. The theoretical punch agrees fairly well with our experiments and other independent experiments. Second, a theory of optimal running is presented, solved and compared with world track records. The theory is similar to Keller's theory for running (1973) except that the power consumed by a runner is assumed to be proportional to the runner's speed v, P = Hv, whereas Keller took P = constant. There are differential equations for velocity and energy, two initial conditions and two constraint inequalities, involving a total of four free parameters. Optimal control techniques are used to solve this problem and minimize the running time T given the race distance D. The resultant predicted times T agree well with the records and the parameter values are consistent with independent physiological measurements.

  19. Numerical development of a new correlation between biaxial fracture strain and material fracture toughness for small punch test

    Science.gov (United States)

    Kumar, Pradeep; Dutta, B. K.; Chattopadhyay, J.

    2017-04-01

    The miniaturized specimens are used to determine mechanical properties of the materials, such as yield stress, ultimate stress, fracture toughness etc. Use of such specimens is essential whenever limited quantity of material is available for testing, such as aged/irradiated materials. The miniaturized small punch test (SPT) is a technique which is widely used to determine change in mechanical properties of the materials. Various empirical correlations are proposed in the literature to determine the value of fracture toughness (JIC) using this technique. bi-axial fracture strain is determined using SPT tests. This parameter is then used to determine JIC using available empirical correlations. The correlations between JIC and biaxial fracture strain quoted in the literature are based on experimental data acquired for large number of materials. There are number of such correlations available in the literature, which are generally not in agreement with each other. In the present work, an attempt has been made to determine the correlation between biaxial fracture strain (εqf) and crack initiation toughness (Ji) numerically. About one hundred materials are digitally generated by varying yield stress, ultimate stress, hardening coefficient and Gurson parameters. Such set of each material is then used to analyze a SPT specimen and a standard TPB specimen. Analysis of SPT specimen generated biaxial fracture strain (εqf) and analysis of TPB specimen generated value of Ji. A graph is then plotted between these two parameters for all the digitally generated materials. The best fit straight line determines the correlation. It has been also observed that it is possible to have variation in Ji for the same value of biaxial fracture strain (εqf) within a limit. Such variation in the value of Ji has been also ascertained using the graph. Experimental SPT data acquired earlier for three materials were then used to get Ji by using newly developed correlation. A reasonable

  20. Aplicação de diferentes métodos de quantificação de cargas durante uma sessão de treinamento de karate

    Directory of Open Access Journals (Sweden)

    Vinicius Flávio Milanez

    2012-08-01

    Full Text Available A percepção subjetiva de esforço (PSE da sessão tem se destacado dentre os métodos de quantificação de cargas de treinamento (QCT em algumas modalidades, sobretudo pelo seu baixo custo e fácil aplicabilidade. No entanto, não há relatos na literatura de sua aplicação na modalidade de karate. O objetivo deste estudo foi analisar a relação entre o método PSE da sessão com BanisterTRIMP, EdwardsTL, LuciaTRIMP, StagnoTRIMP e LacTRIMP. Para tanto, oito atletas de ambos os sexos (21,6 ± 5,5 anos; 58,8 ± 13,8kg; 170,0 ± 0,11cm realizaram uma sessão de treinamento com monitoramento constante da frequência cardíaca (FC, coleta de amostras sanguíneas a cada 10 minutos e aferição da PSE através da escala CR-10, 30 minutos após o término do treinamento, para posterior cálculo dos impulsos de treinamento. Significantes correlações (P < 0,05 foram encontradas entre PSE da sessão e BanisterTRIMP (r = 0,79, EdwardTL (r = 0,81, LuciaTRIMP (r = 0,71, StagnoTRIMP (r = 0,71 e LacTRIMP (r = 0,91. Dessa forma, os resultados deste estudo sugerem a PSE da sessão como um método eficiente para a QCT em atletas de karate estilo shotokan.

  1. Application of variable stiffness damper with disc spring to punch%变刚度碟形弹簧减振器在冲床上的应用

    Institute of Scientific and Technical Information of China (English)

    孙培明; 魏协奔; 陈树钦

    2013-01-01

    分析了冲床减振器刚度对冲床设备基础及机身振动的影响,介绍了一种具有硬-软-硬变刚度特性的碟形弹簧减振器的开发与应用,该减振器有4个减振柱,采用C型碟簧,弹簧组合采用多组对合且各组叠合片数逐渐增加,与同类减振器相比,该减振器能量吸收率高,振动缓冲效果好,既能有效降低冲床设备基础的振动,也能限制机身振动幅度的增大,该减振器成本低廉且使用方便可靠.%The impact of the punch damper stiffness to the equipment base and vibration was analyzed.The development and application of a disc spring damper that has the kind of hard-soft-hard variable stiffness characteristics were described.The shock absorber has four damping columns with C-type disc springs.The spring fixes a multiple set together and laminated plate number is gradually increased.Compared with similar shock absorber,this shock absorber has the advantages of high energy absorption and vibration dampening effect.And the punch equipment foundation vibration was effectively reduled and the increasing of the vibration amplitude of the punching machine was limited.The shock absorber is of low cost and convenient to be used.

  2. 生瓷带打孔机冲孔单元的质量提升%Quality Improvement of Punching Unit for LTCC

    Institute of Scientific and Technical Information of China (English)

    杨卫; 王海珍; 斯迎军

    2016-01-01

    The green tape punching machine is one of the key equipment of the LTCC multi-layer substrate manufacture. Punching unit is the core component of the equipment. However, with the long-term application, it had been found that as the gap between the pin and the die decreased, the edge quality of the hole was getting worse. Through the experiment, the pin was damaged when it declined. The factors which causes needle damage were analyzed with fishbone diagrams. By improving the guidance stiffness, the processing technology, the stability of punching unit was improved greatly. At last, it was proved by field experiment that the improvements accorded with production requirement and the performances were also improved.%生瓷带打孔机是LTCC多层基板制造的关键工艺设备,冲孔单元是其核心部件,用来完成冲孔动作。在长期使用过程中发现,随着冲针与凹模之间的间隙减小,孔的边缘质量越来越差。通过试验观察,冲针在下降冲孔时受损。运用鱼骨图分析冲针受损的原因,通过提高导向刚度、完善零件加工工艺和整改装配过程不符合项等措施,提升冲孔单元质量。通过客户现场使用验证,改进后的冲孔单元冲孔质量稳定可靠,满足生产使用需求,性能得到提升。

  3. Parental Involvement

    OpenAIRE

    Ezra S Simon

    2008-01-01

    This study was conducted in Ghana to investigate, (1) factors that predict parental involvement, (2) the relationship between parental home and school involvement and the educational achievement of adolescents, (3) the relationship between parental authoritativeness and the educational achievement of adolescent students, (4) parental involvement serving as a mediator between their authoritativeness and the educational achievement of the students, and (5) whether parental involvement decreases...

  4. Punch Card Programmable Microfluidics

    OpenAIRE

    George Korir; Manu Prakash

    2014-01-01

    Small volume fluid handling in single and multiphase microfluidics provides a promising strategy for efficient bio-chemical assays, low-cost point-of-care diagnostics and new approaches to scientific discoveries. However multiple barriers exist towards low-cost field deployment of programmable microfluidics. Incorporating multiple pumps, mixers and discrete valve based control of nanoliter fluids and droplets in an integrated, programmable manner without additional required external component...

  5. Punching the Market Softly

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    The Chinese central bank’s recent moves are only a goodwill gesture to a presumably overheating economy The Chinese central bank has never acted so aggressively, yet its forceful undertakings have had little impact on the surging stock market.

  6. Superplasticity of a fine-grained Mg–9Gd–4Y–0.4Zr alloy evaluated using shear punch testing

    Directory of Open Access Journals (Sweden)

    Reza Alizadeh

    2014-07-01

    Full Text Available The superplasticity of an extruded fine-grained Mg–9Gd–4Y–0.4Zr alloy was investigated by measuring the strain rate sensitivity using shear punch testing (SPT. Shear punch tests were conducted at shear strain rates in the range of 3 × 10−3–2 × 10−1 s−1 and at temperatures in the range of 573–773 K. The results indicate the strain rate sensitivity, m, increases from about 0.11 at 573 K to about 0.40 at 723 K and then decreases to 0.32 with a further increase in test temperature. A strain rate sensitivity of 0.40 and an activation energy of 140 kJ/mol are indicative of a superplastic deformation behavior dominated by grain boundary sliding accommodated by lattice diffusion at temperatures above 673 K.

  7. Political Violence and Media Coverage in Nigeria: An Analysis of Nigerian Tribune and Punch Newspapers of 2011 General Elections in Osun State

    Directory of Open Access Journals (Sweden)

    Awofadeju P. O.

    2015-08-01

    Full Text Available The study aims at determining the coverage of the violence by two newspapers (Nigerian Tribune and Punch in the 2011 Osun State General Election by adopting content analysis as its research design. Theories adopted in carrying out this study are agenda setting, two step flow and multi-step flow. This study reveals that the newspapers in this study were not very effective in publishing the news concerning this brutal electoral violence within the period of four weeks under review. It also reveals that the Nigerian Tribune newspaper covered more stories on electoral violence than Punch newspaper and that the coverage of the two newspapers focused more on violence reportage than the effects of violence on the electorates. The coverage of the two newspapers on the major actors in the news also shows that ‘Politicians’ and Political parties’ played greater role in the news than others. The coverage of the two newspapers on victims of the violence shows that ‘Electorates’ and ‘Press’ were most affected victims than others. It therefore concludes that the two newspapers content analyzed were not proactive enough in their responsibility of providing timely information to the general public regarding the electoral violence, thereby leaving people in the dark.

  8. Characterization of ductile-brittle transition behavior in Mn-Mo-Ni low alloy steels for reactor pressure vessel by small punch test

    Energy Technology Data Exchange (ETDEWEB)

    Kim, M. C.; Lee, B. S.; Park, S. D.; Kim, K. B

    2004-12-01

    Small Punch (SP) tests were performed to evaluate the ductile-brittle transition behavior of Reactor Pressure Vessel (RPV) steels produced by different manufacturing (refining) processes. The results were compared to the standard test results, such as the conventional Charpy impact tests, JIC test and the Master Curve fracture toughness tests in accordance with the ASTM standard E1921. The SP transition temperatures (TSP), which are determined by the middle of the upper SP energy, showed a good correlation with the Charpy index temperatures. And the critical fracture strength, {sigma}{sup *}{sub f(sp)} from small punch test were found to have a linear relationship to the values from the pre-cracked specimens({sigma}{sup *}{sub f(PCVN)}). From the observation of thickness changes according to displacement, Equivalent strain(Eq) could be obtained as a function of ball displacement. It is found that relation between specimen thickness and ball displacement is not dependent on material properties and it is expressed as a function of ball displacement, and then SP equivalent strain(Eq) have close relationship with the fracture toughness(J{sub IC})

  9. Comprehensive Comparison and Analysis of Several CommonDie Casting Injection Punch Heads%几种常用压铸压射冲头的综合比较与分析

    Institute of Scientific and Technical Information of China (English)

    杨文军; 武志刚; 渠建中

    2001-01-01

    This paper describes our testing process of several injection punch heads made of different materials,compares them in performance and economic benefit comprehensively,and at last selects a kind of more economic injection punch head to be used in production.%本文叙述了几种不同材质压射冲头的试验过程,并从性能及经济效益两方面进行了比较,最终选择出了一种较为经济实用的压射冲头并应用于生产。

  10. 针刺和水刺复合工艺制备的 PPS 滤料及其性能研究%PPS filter media composed by needle-punching and spunlace technology and its characteristics research

    Institute of Scientific and Technical Information of China (English)

    云高杰; 杨丽英

    2013-01-01

      The production process of needle-punching combined with spunlacing on manufacture PPS filter media used in flue coal fire plant was presented .The filtration material be compared on normal needle-punched PPS filter media, and test on the area density, strength, permeability, surface plainness, filtration efficiency and filtration accuracy.The test result was that the comprehensive performance of PPS filter media composed by process of needle-punching and spunlacing was better than that of normal needle-punched PPS filter media.%  介绍了制作燃煤电厂烟气过滤用PPS滤料的针刺和水刺复合新工艺,并与普通针刺PPS滤料相比较,进行面密度、强力、透气性、表面平整度、过滤效率和过滤精度等性能测试。结果表明,针刺和水刺复合工艺制备的PPS滤料的综合性能优于普通针刺PPS滤料。

  11. Comparison of irradiated 15Kh2MFA material mechanical properties using conventional testing methods and innovative approach of small punch testing (SPT) and automated ball indentation (ABIT)

    Science.gov (United States)

    Kopriva, R.; Petelova, P.; Eliasova, I.; Kytka, M.; Culek, M.

    2017-02-01

    Article describes two innovative testing methods – Small Punch Testing (SPT) and Automated Ball Indentation Test (ABIT) – which are based on the determination and evaluation of material properties from miniaturized testing specimens. These methods are very promising due to minimum material needed for testing and also in case of testing highly irradiated materials of components that are not included in standard surveillance programs. The test results were obtained for reactor pressure vessel (RPV) base material 15Ch2MFA in both states - initial unirradiated and irradiated. Subsequently results were compared with standard tensile tests to prove applicability of these testing methods for the evaluation of degradation of irradiated structural materials of nuclear power plants.

  12. LS-DYNA Simulation of Hemispherical-punch Stamping Process Using an Efficient Algorithm for Continuum Damage Based Elastoplastic Constitutive Equation

    Science.gov (United States)

    Salajegheh, Nima; Abedrabbo, Nader; Pourboghrat, Farhang

    2005-08-01

    An efficient integration algorithm for continuum damage based elastoplastic constitutive equations is implemented in LS-DYNA. The isotropic damage parameter is defined as the ratio of the damaged surface area over the total cross section area of the representative volume element. This parameter is incorporated into the integration algorithm as an internal variable. The developed damage model is then implemented in the FEM code LS-DYNA as user material subroutine (UMAT). Pure stretch experiments of a hemispherical punch are carried out for copper sheets and the results are compared against the predictions of the implemented damage model. Evaluation of damage parameters is carried out and the optimized values that correctly predicted the failure in the sheet are reported. Prediction of failure in the numerical analysis is performed through element deletion using the critical damage value. The set of failure parameters which accurately predict the failure behavior in copper sheets compared to experimental data is reported as well.

  13. Implementation of a non-lethal biopsy punch monitoring program for mercury in smallmouth bass, Micropterus dolomieu Lacepède, from the Eleven Point River, Missouri

    Science.gov (United States)

    Ackerson, J.R.; Schmitt, C. J.; McKee, M.J.; Brumbaugh, W.G.

    2013-01-01

    A non-lethal biopsy method for monitoring mercury (Hg) concentrations in smallmouth bass (Micropterus dolomieu; smallmouth) from the Eleven Point River in southern Missouri USA was evaluated. A biopsy punch was used to remove a muscle tissue plug from the area immediately below the anterior dorsal fin of 31 smallmouth. An additional 35 smallmouth (controls) were held identically except that no tissue plug was removed. After sampling, all fish were held in a concrete hatchery raceway for 6 weeks. Mean survival at the end of the holding period was 97 % for both groups. Smallmouth length, weight and Fulton’s condition factor at the end of the holding period were also similar between plugged and non-plugged controls, indicating that the biopsy procedure had minimal impact on growth under these conditions. Tissue plug Hg concentrations were similar to smallmouth Hg data obtained in previous years by removing the entire fillet for analysis.

  14. Implementation of a non-lethal biopsy punch monitoring program for mercury in smallmouth bass, Micropterus dolomieu Lacepede, from the Eleven Point River, Missouri

    Science.gov (United States)

    Ackerson, R.J.; McKee, J.M.; Schmitt, C.J.; Brumbaugh, William G.

    2014-01-01

    A non-lethal biopsy method for monitoring mercury (Hg) concentrations in smallmouth bass (Micropterus dolomieu; smallmouth) from the Eleven Point River in southern Missouri USA was evaluated. A biopsy punch was used to remove a muscle tissue plug from the area immediately below the anterior dorsal fin of 31 smallmouth. An additional 35 smallmouth (controls) were held identically except that no tissue plug was removed. After sampling, all fish were held in a concrete hatchery raceway for 6 weeks. Mean survival at the end of the holding period was 97 % for both groups. Smallmouth length, weight and Fulton’s condition factor at the end of the holding period were also similar between plugged and non-plugged controls, indicating that the biopsy procedure had minimal impact on growth under these conditions. Tissue plug Hg concentrations were similar to smallmouth Hg data obtained in previous years by removing the entire fillet for analysis.

  15. Community involvement

    Directory of Open Access Journals (Sweden)

    Editorial Office

    1979-09-01

    Full Text Available Community involvement is the main theme of Health Year. Governments have a responsibility for the health of their people, and in this country under the present 3-tier system of government, the responsibility for the rendering of health services is divided between central, provincial and local government. However, under our democratic system, all people have the right to, and it is indeed their duty, to participate individually and collectively in the planning and implementation of services to meet their health needs. Ultimately, through involvement of individuals, families and communities, greater self-reliance is achieved leading to greater responsibility being assumed by people for their own health.

  16. 文化视域下武术与空手道的礼仪对比研究%Comparing the Manners of Wushu with Karate under the Cultural Horizon

    Institute of Scientific and Technical Information of China (English)

    龚梦玲

    2016-01-01

    文章采用文献资料法和逻辑分析法,以文化为中心,辐射到当前武术与空手道的发展现状中,通过对比中国武术与日本的空手道,发现中国武术在发展过程中文化建设层面存在的弊端,提出意见和建议,旨在促进中国武术的发展,传承中华武术文化,弘扬民族精神。%the article using methods of literature material and logic analysis, taking culture as the center, through comparing Chinese Wushu and Japanese Karate, finds out the existing disadvantages of the cultural construction lay in the development process of Chinese Wushu, puts forward some opinions and suggestions, to promote the development of Chinese Wushu, inherit Chinese Wushu culture and carry forward the nation⁃al spirit.

  17. Factors influencing properties of flame retardant needle-punched nonwoven for automobile interiors%汽车内饰用阻燃针刺非织造布的性能影响因素

    Institute of Scientific and Technical Information of China (English)

    金银山; 任元林; 董二莹

    2013-01-01

    以开发汽车内饰用阻燃针刺非织造布为目的,选用阻燃涤纶和热塑性PP/PE复合纤维(ES纤维)为原料,经针刺工艺和轧光工艺制成阻燃针刺非织造布.分别对阻燃针刺非织造布进行硬挺度、透气性、力学性能、燃烧性能和极限氧指数的测试,分析了影响这些性能的原因.结果表明,随着针刺非织造布面密度的增大,针刺非织造布的硬挺度增大,力学性能提高,阻燃性能提高,而透气性下降;轧光整理使针刺非织造布的硬挺度增大,透气性下降,力学性能提高,阻燃性有所提高.%In order to develop flame retardant needle-punched nonwoven for automobile interiors, the flame retardant polyester fibers and thermal plastic PP/PE composite fibers were selected as raw materials to manufacture the flame retardant needle-punched nonwoven by needle-punching and calendering. The stiffness, permeability, mechanical properties, flammability and limited oxygen index of the needle-punched nonwoven were tested, and the factors affecting these properties were analyzed. The results show that with the surface density of the needle-punched nonwoven increasing, the stiffness, mechanical calender, and flame retardance all increase correspondingly, but the permeability decreases. And the calendar finish makes the stiffness, mechanical property and flame retardance improve, while the permeability decreases.

  18. 煤层底板穿层钻孔水力冲孔技术的应用及效果考察%Coal Floor Layer of Drilling Hydraulic Punching Technology Application and Effect of Investigation

    Institute of Scientific and Technical Information of China (English)

    殷庆超; 廉有轩; 王恩营; 刘度

    2015-01-01

    End of the alley pumping wear layer drilling hydraulic punching pressure, the anti-reflection measures can effectively en-hance the permeability of coal seam, expanding radius of extraction and improve the effect of the gas extraction., on the basis of the principle of antireflection unloading hydraulic punching in for zhengzhou mining revitalization of two coal mine hydraulic punching plate wear layer, gas drainage concentration before and after the hydraulic punching, the change of coal seam permeability and the gas flow attenuation coefficient and so on.The test results show that the average single-hole gas drainage concentration is 11.02%, after hy-draulic punching is 2.14%, the anti-reflection measures of improve 4 times; Coefficient of permeability of coal seam after taking steps to improve the 39 times;The gas flow attenuation coefficient is reduced nearly 3 times.Using the method of pressure measured at the same time the mine hydraulic punching effective drainage radius to 10 m.%采用底抽巷穿层钻孔水力冲孔卸压增透措施,可以有效增强煤层的透气性、扩大抽采半径和提高瓦斯抽采效果。基于水力冲孔卸压增透原理,对郑州矿区振兴二矿突出煤层实施底板穿层水力冲孔,考察水力冲孔前后瓦斯抽放浓度、煤层透气性和瓦斯流量衰减系数等的变化。试验结果表明:单孔平均瓦斯抽放浓度在水力冲孔后为11.02%,较未采取增透措施时的2.14%,提高了4倍;煤层透气性系数在采取措施后提高了39倍;瓦斯流量衰减系数则减小了近3倍。同时运用压力法测得该矿水力冲孔有效抽放半径为10 m。

  19. Desenvolvimento e avaliação do desempenho de uma semeadora puncionadora para plantio direto de milho Development and evaluation performance of a punch planter for direct sowing of corn

    Directory of Open Access Journals (Sweden)

    Douglas R Frabetti

    2011-02-01

    Full Text Available Realizou-se este trabalho com o objetivo de desenvolver uma semeadora pontual para o semeio de milho em sistema de plantio direto e avaliar seu sistema de dosagem e distribuição de sementes. Primeiro, elaborou-se uma lista de requisitos os quais a máquina deveria atender; depois, foi feito o projeto conceitual do corpo da máquina e, em seguida, o projeto detalhado de todas as partes e conjuntos, para posterior construção do protótipo. Em bancada de ensaio avaliou-se o desempenho do sistema dosador e distribuidor de sementes, em relação à variação da velocidade e da quantidade de punções utilizada. O delineamento experimental foi em blocos casualizados arranjados em parcelas subdivididas com a parcela principal composta por 6, 9 e 12 punções e a subparcela sendo quatro rotações da roda dosadora correspondentes às velocidades de deslocamento de 4, 6, 8 e 10 km h-1. De modo geral, tanto o aumento da velocidade como do número de punções nas rodas, diminuiu o número de duplas e aumentou o número de faltas, porém a diminuição do número de duplas não foi significativo quanto ao aumento do número de faltas. A semeadora exerceu desempenho satisfatório, com média geral do número de normais de 91%.The present work was accomplished to develop a punch planter to sow corn seeds in no-tillage system, and also to evaluate the performance of its seed metering and delivery systems. First of all, a requirement list was established, that the machine would have to attend. Next, the conceptual and the embodiment designs of the machine was made. Then, the detailed design of all machine parts was made and a prototype was constructed. In a testing bench the performance of the seed metering unit and its seed delivery system was assessed in relation to the punch wheel speed and the quantity of punches on the wheel. The statistical design was in random blocks arranged in sub-divided plots with the main plot made of 6, 9 and 12 punches and

  20. 输送机内、外链板冲孔模具的设计与工艺优化%Designing & Process Optimization of the Punching Mould of Inner/Outer Scraping Blade on Conveyor

    Institute of Scientific and Technical Information of China (English)

    林广学; 闫秀梅

    2011-01-01

    In order to increase the Machining accuracy and efficiency of the inner/outer scraping blade on conveyor, one new designed punching mould was introduced in this paper. It improved the accuracy and efficiency of punching the inner hole of the scraping blade, insured the product quality.%为了提高输送机内、外链板孔的加工精度及加工效率,该文设计了一套新型链板冲孔模具,可以准确、高效地加工输送机链板内孔,确保了产品质量。

  1. Research on the PTFE emulsion finishing of polyester needle punched nonwoven filter material%涤纶针刺滤料的 PTFE 乳液整理工艺探索

    Institute of Scientific and Technical Information of China (English)

    崔运花; 韩雅岚; 季舒阳; 曾卉菁; 张嘉珂; 江宁

    2013-01-01

    Two kinds of polyestcr needle-punched filter media with diflercnt density were finlshed by PTFE emulsion . The effects of eight different parameters in PTFE emulsion finishing process on permeability of two kinds of filter materials were studied , involving impergeating temperature , impregnation time , PTFE emulsion concentration , calendar pressure , pre-drying temperature and time , curing temperature and time.The optimum finishing process for the permeability of filter material with loose structure was as follows, the dip time was 15 min, the calendar pressure was 0.2 MPa, the pre-drying temperature was 100 ℃, the pre-drying time was 5 min, the curing remperature was 180 ℃, the curing time was 7 min.The optimum finishing process for the permeability of filter masterial with compact structure was as follows, the dip time was 15 min, the calendar pressure was 0.5 MPa, the pre-drying temperature was 80 ℃, the pre-drying tiem was 10 min, the curing temperature was 160 ℃, and the curing time was 3 min.%  选择两种结构致密程度不同的涤纶针刺滤料,对其进行PTFE乳液整理,研究了浸渍温度、浸渍时间、PTFE乳液浓度、轧车压力、预烘温度、预烘时间、焙烘温度和焙烘时间八项工艺参数对滤料透气率的影响规律。正交优化试验结果显示:可以使结构疏松滤料透气率变化率最大的工艺为浸渍时间15 min,轧车压力0.2 MPa,预烘温度100℃,预烘时间5 min,焙烘温度180℃,焙烘时间7 min;可以使结构致密滤料透气率变化率最大的整理工艺为浸渍时间15 min,轧车压力0.5 MPa,预烘温度80℃,预烘时间10 min,焙烘温度160℃,焙烘时间3 min。

  2. 25/17MN双动厚板冲压液压机的电气控制系统%Electric control system of 25/17MN double motion hydraulic press punching thick plate

    Institute of Scientific and Technical Information of China (English)

    谭利红

    2001-01-01

    Electric control system of 25/17MN double motion hydraulic press punching thick plate and parameters operation manner have been introduced with analysis of graphic interface reality.%介绍了25/17MN双动厚板冲压液压机的电气控制系统及其系统中的参数处理方式,并对图形界面的实时性进行了分析。

  3. Flow topology, heat transfer characteristic and thermal performance in a circular tube heat exchanger inserted with punched delta winglet vortex generators

    Energy Technology Data Exchange (ETDEWEB)

    Boonloi, Amnart [College of Industrial Technology, Bangkok (Thailand); Jedsadaratanachai, Withada [Faculty of Engineering, Bangkok (Thailand)

    2016-01-15

    To improve the heat transfer rate and thermal performance, the punched delta winglet vortex generators, DWVGs, were inserted in the middle of the circular tube heat exchanger. The effects of the flow attack angles and the flow directions were investigated numerically for the Reynolds number Re = 100 – 2000. The finite volume method and the SIMPLE algorithm were used to study. The results are reported in terms of the flow structure, heat transfer behavior and thermal performance evaluation and also compared with the smooth tube with no vortex generators. As the numerical results, the use of the DWVGs in the tube can improve the heat transfer rate and thermal performance by creating the vortex flow through the tested section. The rise of the flow attack angle results in the increasing strength of the vortex flows. The flow attack angle of 25 .deg. performs the highest heat transfer rate and thermal performance, while the flow attack angle of 0 .deg. gives the reversed results. The computational results reveal that the optimum thermal enhancement factor is around 2.80 at Re = 2000, α = 25 .deg., with the winglet tip pointing downstream. The correlations on both the Nusselt number ratio and friction factor ratio for the DWVG in the tube heat exchanger are presented.

  4. 框架双面冲孔浮动冲模设计%Design of Piercing Die for the Frame with Double-sided Floating Punches

    Institute of Scientific and Technical Information of China (English)

    熊幼明

    2011-01-01

    针对加工中心加工框架零件上3组同轴孔成本高、效率低这一现象,为了降低成本、提高效率,故对工艺进行改良,最终确定为冲压加工,于是设计了一副双面冲孔浮动冲模。文中对零件工艺进行了分析,介绍了主要的设计计算,重点阐述了模具结构设计及其工作原理。此模具的投产节约了生产能源,降低了生产成本,提高了生产效率。%Considering the high cost and low efficiency during processing three sets of coaxial holes on the same frame parts and for a lower cost and higher efficiency, the processing is supposed to improve and stamping is the choice. This design is for a die with double-sided floating punches, which focuses on die design and working principle and gives analysis for the workmanship of parts processing as well as description of the main design calculations. Put into production, this die shall save energy, reduce costs and improve productivity.

  5. Quantification of brittle-ductile failure behavior of ferritic reactor pressure vessel steels using the Small-Punch-Test and micromechanical damage models

    Energy Technology Data Exchange (ETDEWEB)

    Linse, T., E-mail: thomas.linse@tu-dresden.de [Technische Universität Dresden, Institute for Solid Mechanics, 01062 Dresden (Germany); Kuna, M. [Technische Universität Bergakademie Freiberg, Institute of Mechanics and Fluid Dynamics, Lampadiusstrasse 4, 09596 Freiberg (Germany); Viehrig, H.-W. [Helmholtz-Zentrum Dresden-Rossendorf, P.O. Box 510119, 01328 Dresden (Germany)

    2014-09-22

    Two German ferritic pressure vessel steels are examined in the brittle to ductile transition regime as a function of temperature and irradiation. The experiments are done by a miniaturized Small-Punch-Test in hot cells within the temperature range of −185 °C up to 70 °C. From the load–displacement curve of the SPT, the yield curves and parameters of both a non-local GURSON-TVERGAARD-NEEDLEMAN ductile damage model and a modified BEREMIN model are identified. The influence of temperature and irradiation on the model parameters is analyzed. All parameters are verified by comparison with results from standard test methods. The parameters, identified from SPT, are used to simulate the failure behavior in standard fracture mechanics specimens. In the upper shelf, the non-local GTN-model is applied to simulate crack resistance curves, from where the fracture toughness data could be successfully predicted. In the lower shelf, the WEIBULL-stress of the specimens was computed to find out the statistics of fracture toughness values. Finally, the modified BEREMIN model and the non-local ductile damage model were combined to evaluate the failure of fracture specimens in the brittle-ductile transition region. This way, an acceptable agreement with Master-curve data for non-irradiated steels could be achieved in the whole temperature range.

  6. Shear punch testing of {sup 59}Ni isotopically-doped model austenitic alloys after irradiation in FFTF at different He/dpa ratios

    Energy Technology Data Exchange (ETDEWEB)

    Hankin, G.L.; Faulkner, R.G. [Loughborough Univ., Leicestershire (United Kingdom). I.P.T.M.E.; Hamilton, M.L.; Garner, F.A. [Pacific Northwest National Lab., Richland, WA (United States)

    1998-03-01

    A series of three model alloys, Fe-15Cr-25Ni, Fe-15Cr-25Ni-0.04P and Fe-15Cr45Ni were irradiated side-by-side in FFTF-MOTA in both the annealed and the cold worked condition in each of two variants, one using naturally occurring isotopic mixtures, and another doped with {sup 59}Ni to generate relatively high helium-to-dpa ratios. Previous papers in this series have addressed the influence of helium on radiation-induced evolution of microstructure, dimensional stability and mechanical properties, the latter using miniature-tensile specimens. In the final paper of this experimental series, three sets of irradiations conducted at different temperatures and displacement rates were examined by shear punch testing of standard microscopy disks. The results were used to determine the influence of helium generation rate, alloy starting condition, irradiation temperature and total neutron exposure. The results were also compared with the miniature tensile data obtained earlier. In general, all alloys approached saturation levels of strength and ductility that were relatively independent of He/dpa ratio and starting condition, but were sensitive to the irradiation temperature and total exposure. Some small influence of helium/dpa ratio on the shear strength is visible in the two series that ran at {approximately}490 C, but is not evident at 365 C.

  7. Assessment of the Effects of Cold Work on Crack Initiation in a Light Water Environment Using the Small-Punch Test

    Science.gov (United States)

    Isselin, Jerome; Kai, Akira; Sakaguchi, Kazuhiko; Shoji, Tetsuo

    2008-05-01

    Work hardening induced by manufacturing processes has important consequences for the resistance to the stress corrosion cracking (SCC) of low-carbon stainless steel in high-temperature water conditions. It is of great importance to understand the mechanisms and the factors promoting environmentally assisted cracking in such environments. In this study, the effect of work hardening on 316L austenitic stainless steel was studied using a small-punch SCC test facility applied to miniaturized specimens. Tests were performed in a boiling water reactor (BWR) environment with trapezoidal loading. After the tests, the fracture faces and the surfaces of the samples were examined with a scanning electron microscope (SEM). Focused ion beam (FIB) etching was used to prepare samples for the SEM observations. Identification of the oxide was done using a Raman spectroscope and comparison of the data to reference spectra. The results showed the unfavorable effect of cold rolling against crack initiation. The oxide composition is affected by work hardening. Hence, the ferrous oxide formation is promoted by Fe diffusion caused by the dislocation density increase associated with an active strain during the test.

  8. Properties of needle-punched insole with different fibers%不同纤维原料针刺鞋垫的性能研究*

    Institute of Scientific and Technical Information of China (English)

    赵宇; Anovar; 郁崇文

    2013-01-01

    The needle-punched insoles made with different fibers and blend ratios were studied .The influence of raw material and fiber blend ratio on permeability , hygroscopic , and abrasion resistance and heat insu-lation of the insoles were analyzed .The experiment demonstrated that ratio of PP and cotton or flex is 20∶80 , which is expected to benefit the production of nonwoven insole .%  以不同纤维原料的针刺非织造布鞋垫材料为研究对象,着重分析了纤维混合比和原料对非织造布透气性、吸湿性、耐磨性和保暖性的影响及其原因。结果表明:丙纶与棉、麻纤维的混合质量比为20∶80时,可以获得能够较好满足鞋垫材料性能要求的非织造布。

  9. 有氧搏击操锻炼对男大学生体质的影响%The Effect of Aerobic Kicking and Punching Practice on Male Undergraduates

    Institute of Scientific and Technical Information of China (English)

    赵金凤

    2012-01-01

    60 male undergraduates of different majors are chosen as the research object to measure their physical changes before and after a 13-week aerobic kicking and punching practice so as to study the influence of aerobic kicking and punching practice on male undergraduates' constitution.The experiment result shows regular aerobic kicking and punching practice effectively promotes male undergraduates' body shape,enhances the level of their physical function,improves the development of their physical fitness and has a positive effect on body constitution.%选取60名不同专业男大学生为研究对象,测定其经过13周有氧搏击操锻炼前后体质变化,研究有氧搏击操对男大学生体质的影响.实验结果表明:有规律的有氧搏击操锻炼能有效地改善男大学生的身体形态,提高身体机能水平,促进身体素质的发展,从而对体质产生积极有效的影响.

  10. Punching Holes in Membranes: How Oligomeric Pore-Forming Proteins and Lipids Cooperate to Form Aqueous Channels in Membranes

    Science.gov (United States)

    Fradin, Cécile; Satsoura, Dmitri; Andrews, David W.

    Many important biological processes are carried out by a small number of proteins working together as a team to accomplish a specific task. Cooperation between the different proteins is often accomplished through the formation of a supramolecular complex, comprised of either identical or different subunits. Although the formation of protein assemblies is a favored mechanism throughout the cell, it becomes especially important in lipid membranes, as evidenced by the numerous cellular events that are either triggered by or result in the formation of protein complexes in membranes. However, due to the difficulties associated with the study of membrane proteins, the formation of oligomers in lipid membranes is perhaps one of the least understood cellular processes. In this chapter we focus our attention on a subset of membrane complexes — namely, those formed by proteins that are able to pass from a water-soluble to a transmembrane form in order to create a water-filled channel through the lipid membrane. These pore-forming proteins (PFPs) are found in many organisms throughout different kingdoms of life, from bacteria to human. They are often involved in cell death mechanisms through their capacity to break membrane permeability barriers, which can lead to dissipation of the membrane potential as well as introduction or leakage of enzymatic proteins. In fact, a large subset of the PFPs are toxins, and referred to in the literature as pore-forming toxins (PFTs). The association of several monomers into an oligomer is almost always an important aspect of the modus operandi of these proteins. Oligomerization can be useful in several ways: it results in structures large enough to delineate nanometer-size water-filled channels in lipid bilayers, it ensures the presence of large hydrophobic surfaces that can support insertion in the membrane, and it permits cooperative formation and insertion mechanisms.

  11. 经济型数控冲床 PLC控制系统的研究%The research of PLC control system for economical CNC punch press

    Institute of Scientific and Technical Information of China (English)

    王为达; 樊瑜瑾; 槐建明; 郑淮河; 张磊

    2013-01-01

    为了降低中小制造企业的成本及增强企业对市场的应变能力,在保证加工精度的前提下,设计了一种基于PLC和触摸屏的数控冲床专用控制系统。利用可编程序控制器控制步进电动机构成开环控制系统,可实现较精确的位置控制。使用触摸屏作为控制界面,不仅使得人机对话更加方便,而且改善了系统的性能。通过调试搭建的实验机模型,表明该经济型数控系统操作简单、可靠性高、稳定性好,可以满足一般加工精度的要求。%In order to reduce the cost and enhance the adaptability of the enterprise market of small and medium-sized manufacturing enterprises ,under the premise of ensuring the accuracy of processing , a CNC punch press dedicated control system based on PLC and touch screen system was designed .Pro-grammable controller and stepper motor composed one open loop control system which can achieve more accurate position control .By using the touch screen as a control interface ,the man-machine dialogue be-came more convenient and the performance of the system was improved .Debugging the build experimental machine model shows that the economic CNC system has the advantages of simple operation ,high reliabil-ity and good stability .Besides these ,the general requirements of the machining accuracy are met by the e-conomic CNC system .

  12. 金属薄板激光冲孔成形的数值模拟%Numerical Simulation on Sheet Metal Punched by Laser Shock Waves

    Institute of Scientific and Technical Information of China (English)

    张标; 张兴权; 王海荣; 郑如; 左立生; 时礼平

    2011-01-01

    利用ANSYS/LS-DYNA有限元软件,对厚度0.1 mm的45钢金属薄板在激光冲击作用下的成孔过程进行了数值模拟.充分利用了ANSYS/LS-DYNA的显式分析和隐式分析功能.根据显示分析结果得出,在凹模与压板的辅助作用下,当冲击载荷压力达到5.5 GPa时,冲击区域开始断裂、脱离靶板继而形成冲孔;然后把动态分析的应力、应变结果作为隐式分析的初始条件,进行充分的回弹求解.根据隐式分析结果显示,带孔靶板孔口形状特点及翘曲情况与实验结果相符.%Using finite element software of ANSYS/LS-DYNA, the punching process of the sheet metal which material is 45 steel and depth is 0.1 mm by laser shock waves was simulated. The explicit and implicit analysis function of ANSYS/LS-DYNA was full applied. According to results of explicit analysis, with the help of die and pressing plate, the shocked area started to split and then broken away from the target sheet and the hole was finally formed when the shocking pressure up to 5.5 Gpa; and then the results of strain and stress of explicit analysis were used as initial conditions of implicit analysis, the spring's solving was carried on. The implicit results show the shape features and bending upwards conditions of the formed -hole are according with the experimental results.

  13. Analysis of corneal pathologic changes and laboratory parameters in herpes simplex karatitis patients with Ganhuo-shangyanzheng or Ganshengyinxuzheng%单纯疱疹病毒性角膜炎肝火上炎证、肝肾阴虚证患者角膜病变及指标分析

    Institute of Scientific and Technical Information of China (English)

    张海男; 黎杏群; 梁清华; 陈昌华

    2001-01-01

    In order to investigate the relationship between Ganhuoshangyanzheng and Can-shengyin xuzheng in herpes simplex karatitis patients, we observed corneal pathologic changes and examined blood levels of prostaglandin F2 (PGF2), prostaglandin E2 (PGF2), tumor necrosis factor (TNF), arginine vasopressin (AVP), norepinephrine (NR), epinephrine (E) in sixty herpes simplex karatitis patients with Ganhou shangyanzheng or Gan-shengyinxuzheng. The results showed that the corneal pathologic changes were corneal ulcer infiltrating to stroma of cornea in Ganhuo shangyanzheng patients, and refractary corneal ulcer with large amount of corneal neovascularizaton and infiltration of corneal stroma in Gan-shengyinxuzheng patients, the blood levels of PGF2, PGE2, TNF, AVP, NE, E in Ganhuo shangyanzheng patients were higher than those in Gan-shengyinxuzheng patients or healthy persons. The results suggest that these parameters may be objective parameters for differential diagnosis of traditional Chinese medicine Zheng types in patients with herpes simplex karatitis.%对60例单纯疱疹病毒性角膜炎肝火上炎证、肝肾阴虚证病人角膜病变、血前列腺素F2α(PGF2α)、前列腺素E2(PGE2)、肿瘤坏死因子(TNF)、精氨酸加压素(AVP)、去甲肾上腺素(NE)、肾上腺素(E)进行检测,分析两证型上述指标的变化规律。结果显示肝火上炎证组角膜病变为角膜溃疡累及基质层,肝肾阴虚证组角膜病变为顽固性角膜溃疡,有大量新生血管及角膜基质浸润水肿;肝火上炎证组血PGF2α,PGE2,TNF,AVP,NE及E较肝肾阴虚证组和健康人组显著升高,表明以上指标可作为单纯疱疹病毒性角膜炎辨证分型的客观参考指标。

  14. Design of Punch Die Set Height Monitor Controller Based on PC/104%基于PC/104冲床装模高度监测控制器的研制

    Institute of Scientific and Technical Information of China (English)

    朱帅琦; 吴亚锋; 张鑫

    2012-01-01

    In order to solve the problems of small-sized punch' s die-filling process which caused by manual operation , a punch' s die set height controller is designed based on embedded computer system. This controller uses PC/104 bus-single computer as the main controller, and is companied with outer SSI interface data collecting system , human-computer interaction and generator controlling block, which aims to realize the functions of die' s data management, die set height monitoring and control. At the same time, this kind of controller have high precision, small consumption, low cost and sturdy material makes this controller especially fits small-sized punch processing and operating spots. It has a bright future of marketing application.%针对冲床装模过程中由于人工操作而引起的误差大、效率低等问题,设计了一种基于嵌入式计算机系统的装模高度监测控制器.该控制器选用PC/104总线单板电脑作为主控制器,配合于外部的SSI接口数据采集、人机交互和电机控制模块,实现对模具信息管理,装模高度监测及控制等功能.该控制器精度高、功耗小、成本低、结构坚固,特别适于小型冲床设备的加工过程及操作现场,有较好的市场应用前景.

  15. 腰槽开孔矩形翼涡流发生器纳米氧化镁颗粒污垢特性%Fouling characteristics of magnesia nanoparticles on rectangular wing vortex generator with hole punched at waist groove

    Institute of Scientific and Technical Information of China (English)

    徐志明; 熊骞; 耿晓娅; 王景涛; 韩志敏

    2016-01-01

    为了探究开孔涡流发生器颗粒污垢机制,实验研究了腰槽开孔矩形翼涡流发生器纳米氧化镁颗粒的污垢特性,考察了入口温度、浓度、流速、涡流发生器纵向间距以及不同攻角等参数污垢特性的影响。结果表明:腰槽开孔矩形翼涡流发生器具有较好的抑垢特性,抑垢能力随入口温度降低、浓度降低、流速增加以及纵向间距减小而增强。涡流发生器60°攻角布置下的抑垢能力最强。%In order to explore fouling mechanism of nanoparticles in hole-punched vortex generator, magnesia nanoparticles were used experimentally in rectangular wing vortex generator with hole-punched at waist groove, which factors of inlet temperature, concentration, flow velocity, longitudinal space and attacking angle of vortex generator were studied. The experimental results showed good anti-fouling performance of the waist-groove-punched rectangular wing vortex generator and its significant dependence on operating conditions. High flow velocity, low magnesia particle concentration, low inlet temperature and short longitudinal space could enhance anti-fouling capability. The best anti-fouling was at the attacking angle of 60°.

  16. The effect of long term exposition at 540 °C on the empirical correlations for determination of mechanical properties of low alloy CrMoV steel from the results of Small Punch tests

    Directory of Open Access Journals (Sweden)

    Ondřej Dorazil

    2016-03-01

    Full Text Available The present paper describes the effect of long term exposure at 540 °C on the empirical correlations for determination of yield strength, tensile strength and FATT of 14MoV6-3 low alloy steel. Empirical correlations obtained for the pipe in as received state were compared with the results of standardized tensile, impact and Small Punch tests carried out on the testing materials cut of the three pipes of significantly different metallurgical quality and time of exposure at 540 °C.

  17. Kinesiological characterization of choku-tsuki done with impact and its comparison with its execution without impact

    Directory of Open Access Journals (Sweden)

    António M. VencesBrito

    2012-06-01

    Full Text Available Aim: This work aims to characterize the kinematics and electromyography of a basic karate punch (choku-zuki made with an impact on a target (makiwara by experienced karateka, and compares it with the execution without real impact on the target (control. This characterization allows to the coach (sensei to know how training influences the performance of the punch in each one of these circumstances, and from that information it is possible to define strategies of training that considers adapted to its goals.Method: In a sample of ten male karateka of the Portuguese Karaté Team the kinematic and electromyographic data of the arm and forearm segments were collected during the execution of choku-zuki, with impact and no impact.Results: It was found that the kinematics and neuromuscular activity in the performance of choku-zuki happens in a time interval less than 300ms. The studied muscles activity and segments of the upper limb shows a trend of activation sequence with a proximal to distal direction, with the intervening segment arm muscles having a greater intensity of activation that the muscles involved in the forearm segment. The arm flexion at the shoulder joint and the forearm extension at the elbow joint are done with greater amplitude, and the forearm pronation is not complete at the time of impact. The forearm pronation at the elbow joint is not complete and tends to be the first segmental movement in the choku-zuki execution.Conclusion: The executions of choku-zuki with impact and no impact are kinesiologically different. This difference highlights the importance that coaches should provide to teach and training the punch execution with an effective impact on the target.

  18. A Real Punch to Property

    Institute of Scientific and Technical Information of China (English)

    LAN XINZHEN

    2010-01-01

    @@ The property bubble in China is about to burst.And the bearish property market could last for as long as five years,said Xie Guozhong,an independent economist and director of Rosetta Stone Capital Ltd.,on his biog. "Housing prices might be cut in half at the lowest point,and the average price per square meter will be equivalent to two months' average salary"he said."Land prices could also fall dramatically."

  19. A Real Punch to property

    Institute of Scientific and Technical Information of China (English)

    2010-01-01

    The Chinese Government recently announced a new series of forcefult measures to cool the bubbling property market The property bubble in China is about to burst.And the bearish property market could last for as long as five years,said Xie Guozhong,an independent economist and director of Rosetta Stone Capital Ltd.,on his blog.

  20. Study on properties of long polyester staple fiber needle-punched nonwoven geotextile%超长涤纶短纤维针刺土工布性能研究

    Institute of Scientific and Technical Information of China (English)

    李素英; 张瑜; 范立元; 任煜; 顾闻彦; 于树发

    2014-01-01

    The needle-punched nonwoven geotextile was made using PET fibers of 51, 65 and 150 mm.The influence of process parameters such as length of the fiber , punching density and depth of needle penetration on mechanical properties , thickness and vertical permeability coefficient of geotextile was discussed .The results show that the mechanical properties of the nonwoven geotextile increased significantly with the increase of the PET fiber length .The reasonable choice of the process parameters could enhance the mechanical and hydraulic conductivity properties of the nonwoven geotextile .%以长度为51、65和150 mm的涤纶短纤维为原料,采用非织造针刺技术加工制得土工布。研究了原料纤维长度、针刺密度和针刺深度对土工布力学性能、厚度、垂直渗透系数的影响。结果表明:增加土工布原料纤维长度可以明显提高土工布力学性能;合理地选择针刺深度和针刺密度,有助于提高土工布的力学性能及透水性能。

  1. Beckhoff EtherCAT 和 TwinCAT CNC在数控转塔冲床中的应用%The Application of Beckhoff EtherCAT & TwinCAT CNC in the CNC Turret Punch Press

    Institute of Scientific and Technical Information of China (English)

    王君; 包俊杰

    2013-01-01

    全新的DMT-200型双电伺服数控转塔冲床是倍福中国与江苏金方圆数控机床有限公司的又一个成功合作开发的范例。金方圆首次决定在这台设备上使用纯软件 CNC 控制解决方案。与先前使用的解决方案相比,使用EtherCAT和TwinCAT CNC后,DMT冲床的加工性能提升了将近20%。%The new DMT-200 CNC turret punch press with gantry drive is the result of the successful cooperation of Jiangsu Jinfangyuan CNC Machine with Beckhoff China. With this advanced machine, Jinfangyuan has for the first time settled on a purely software-based CNC control solution. Through the use of EtherCAT and TwinCAT CNC it is possible to increase the processing performance of the DMT punch by around 20%compared to the previous solution.

  2. Design of intelligent monitoring and controlling system of high-speed punching machine status%高速冲压设备状态智能监控系统设计

    Institute of Scientific and Technical Information of China (English)

    黄泽森; 戴星; 汤世友

    2009-01-01

    Working principle and key technology of the intelligent monitoring and controlling system of the highspeed punching machine are introduced, which consisted of piezoelectric impact pressure sensor, eddy-current testing sensor, intelligent monitoring and controlling instruments, nonconforming high-speed separation mechanism. Experiment shows that the system can monitor and control the status of the high-speed punching machine effectively. The separation of nonconforming steel ball is achieved. The steel ball pass rate is above 98 %. The system is stable and reliable.%介绍了由压电式冲击压力传感器、涡流探伤传感器、智能监控仪、不合格品高速分选机构等组成的高速冲压设备状态智能监控系统的工作原理及其关键技术.试验证明:该系统能有效监控高速冲压设备状态和实现对不合格钢球毛胚的分选,毛胚合格率可达98%以上.该智能监控系统运行稳定、可靠.

  3. Punch biopsy guided by both colposcopy and HR-HPV status is more efficient for identification of immediate high-grade squamous intraepithelial lesion or worse among HPV-infected women with atypical squamous cells of undetermined significance.

    Science.gov (United States)

    Ding, Z; Li, Y; Chen, A; Song, M; Zhang, Y

    2016-12-01

    To investigate the accuracy of colposcopy for diagnosing high-grade squamous intraepithelial lesion (HSIL) or worse (HSIL+) in human papillomavirus (HPV)-infected patients with atypical squamous cells of undetermined significance (ASCUS) cytology, and determine whether genotyping and viral load quantitation can be useful for detecting immediate HSIL+ risk in these patients. This study included 620 cases with ASCUS and positive for high-risk (HR)-HPV within 1 month before or after cervical cytology at Qilu Hospital between February 2013 and February 2014. Based on the colposcopic impression, lesion-targeted punch biopsy, endocervical curettage biopsy or random cervical punch biopsy in four quadrants was performed on these patients within 1 month. The accuracy of colposcopy for diagnosing HSIL+ was evaluated through comparison with the biopsy results. HR-HPV status determined by Hybrid Capture 2 or HPV genotyping was analysed retrospectively as a possible predictor of HSIL+. Agreement between colposcopic impression and cervical pathology was matched perfectly in 89.2% of cases (553/620), and the strength of agreement with the κ statistic was 0.698 (ptypes of HPV (17.9%, pbiopsies considering HPV-16 infection or virus load ≥50 RLU/CO may be helpful for increasing the HSIL+ detection rate. Copyright © 2016 Elsevier Ireland Ltd. All rights reserved.

  4. 板柱节点拟静力试验及板栓钉群外受冲切承载力计算方法%Quasi-static test of slab-column connections and calculating method of punching shear strength outside stud group

    Institute of Scientific and Technical Information of China (English)

    张扬; 代伟明; 钱稼茹; 陶学康

    2013-01-01

    The quasi-static test of two slab-column connections,which punching shear failure of slab occurred outside the stud group,were introduced.An outline of punching shear-critical section outside the stud group was proposed.Based on the test results and related references,a formula,which took into consideration of punching-shear span factor and had the same form with the punching shear strength formula of concrete slab specified in Code for design of concrete structures(GB 50010-2010),was recommended to calculate punching shear strength outside the stud group of slab.The punching shear strength obtained by using the formula is well consistent with that obtained by the test.%针对板柱结构中采用栓钉抗剪问题,进行了两个钢筋混凝土板柱节点发生栓钉群外破坏的拟静力试验.提出了板栓钉群外圆角冲切破坏轮廓线;并根据现有的试验结果,采用《混凝土结构设计规范》(GB50010-2010)的非预应力混凝土板受冲切承载力计算公式的形式,引入冲跨系数,提出了非预应力混凝土板栓钉群外受冲切承载力计算公式.利用该公式计算得到受冲切承载力与发生冲切破坏板柱节点的试验结果吻合较好.

  5. 冲压机械致工业性手外伤危险因素的病例对照研究%A Case-Control Study of Industrial Hand Injuries by Punch Machines

    Institute of Scientific and Technical Information of China (English)

    傅阳; 潘福根; 叶作舟; 吴晓天; 陈亮

    2014-01-01

    Objective To identify factors associated with industrial hand injuries by punch machines. Methods From Jun 2010 to Jun 2011, 87 patients of industrial hand injuries by punch machines were collected. For each patient, 2 controls were randomly selected. One was from the same industry; the other was from a big industry with thousands of punch machines. They marched on gender, jobs and age. In-persons interviews were conducted to collect data on demographics, work history, work characteristics, work injuries, work organization, health behaviors, anthropometric and psychological factors. Risk factors were examined via multivariate logistic regression techniques. Results There were four important factors affecting hand injuries by punch machines: the first was the length of daily working time index (odds ratio [OR]1.50, 95% confidence interval [CI]=1.12, 1.32). The second index was working hours before injury (OR=1.22, 95%CI=1.02, 1.27). A safety equipment index (OR=0.26, 95%CI=0.12, 0.56) and a safety operation criterion index (OR=0.35, 95%CI=0.31, 0.41) were also significant factors. Conclusion Results suggest that the accident-prone population are those who have shorter service length and working hours. It may reduce the incidence of industrial hand injuries by punch machine to strengthen the appliance of safety equipment and enforcement of safety operation criterion, especially to the accident -prone population.%目的:了解冲压机械所致工业性手外伤的危险因素和有事故倾向性的人群。方法采用1:2配比的病例对照研究方法,对收治的冲压机械所致急诊工业性手外伤患者及其对照人群开展可能危险因素的调查。采用SPSS软件进行单因素分析和多因素条件Logistic回归模型拟合。多因素条件Logistic回归模型拟合时采用逐步回归分析方法,将变量引入模型的显著性水平设为0.05。共有符合条件的病例94例,因各种原因而未进入调查7

  6. Modelo de indução de lesão no ligamento suspensório equino com utilização de punch para biópsia cutânea Suspensory ligament lesion model in horses using a skin biopsy punch

    Directory of Open Access Journals (Sweden)

    Anamaria Santos Soares

    2010-05-01

    Full Text Available O objetivo deste estudo foi avaliar um novo modelo de lesão no ligamento suspensório (LS. Sob anestesia geral, um punch para biópsia cutânea de 0,6cm de diâmetro foi utilizado para criar uma lesão no centro do LS de ambos os membros torácicos e pélvicos, em seis equinos. Todos os animais se recuperam da cirurgia sem nenhuma complicação importante. Realizaram-se avaliações clínicas e ultrassonográficas no período pós-operatório. Durante as primeiras duas semanas, no local da lesão, houve redução no edema de leve para discreto e da dor de discreta para ausente. As lesões foram facilmente observadas ao exame ultrassonográfico 72 horas após a cirurgia como áreas anecoicas homogêneas, representando uma média (± erro padrão de 33,5±5% da área do LS. Não houve alteração significativa na área de lesão durante as primeiras duas semanas (P=0,77. Concluiu-se que o modelo proposto foi eficiente para promover lesões controladas e homogêneas simultaneamente nos quatro LS, sem causar desconforto importante aos equinos. Esses achados, associados à possibilidade de se avaliar previamente o LS por meio de biópsia, demonstram que esse modelo de indução de lesões ligamentosas se apresenta com um método útil, principalmente se aplicado ao estudo de terapias destinadas a melhorar o processo de reparo do LS.The aim was to study a novel model of suspensory ligament (SL lesion. Under general anesthesia, a punch for skin biopsy (0.6cm of diameter was used to create a circular lesion in the middle of SL simultaneously in the four members of six horses. All horses recovered without any important complication. Clinical and ultrasonographic evaluations were made during the post operative period. During the first two weeks, edema changed from mild to discreet, and pain changed from discreet to none around the surgical site. The lesions were easily observed by ultrasonography 48h after surgery as a homogenous anechoic area

  7. Qual a melhor incidência radiográfica para avaliar o desvio das fraturas tipo die-punch? Estudo em cadáver What is the best radiographic view for "die punch" distal radius fractures? A cadaver model study

    Directory of Open Access Journals (Sweden)

    Diego Figueira Falcochio

    2012-02-01

    Full Text Available OBJETIVO: Avaliar qual a melhor incidência radiográfica para diagnosticar os desvios da fratura tipo die-punch da extremidade distal do rádio. MÉTODOS: Utilizou-se um rádio do Banco de Tecidos Salvador Arena. Após limpeza e retirada de partes moles, realizou-se osteotomia da região dorsoulnar da superfície articular com microsserra, osteótomo e martelo. Fixou-se o fragmento distal com fita adesiva, nos degraus articulares de 1, 2, 3 e 5mm. A peça foi submetida a radiografias nas incidências frente, perfil, oblíqua semipronada, oblíqua semissupinada e tangencial (75º com o plano da mesa. Em uma segunda etapa, avaliou-se o desvio da fratura em cada radiografia, com auxílio do software AutoCAD 2010®. RESULTADOS: A incidência tangencial foi a melhor para identificar os desvios de 1 e 3mm e a segunda melhor nos desvios de 2 e 5mm. No desvio de 2mm a melhor incidência foi a oblíqua semipronada e no de 5mm a oblíqua semissupinada, sendo que não se consegue identificar os desvios de 1 e 2mm na oblíqua semissupinada. CONCLUSÃO: A incidência tangencial foi superior na avaliação do degrau articular de 1mm e 3mm e a segunda melhor quando houve degrau de 2mm e 5mm.OBJECTIVE: the aim of this study is try to show the best view for distal radius fractures so called die-punch fractures. METHODS: There has been used a human cadaver radius bone from the Salvador Arena Tissue Bank. This bone was cleaned up after removing the soft tissues and osteotomies created displaced lunate fossa fractures of 0, 1, 2, 3 and 5 mm. We have fixed this fragment with adhesive tape. Then the joint deviation were significantly increased with step-offs of 1 mm. Radiographs were then taken into 5 different positions: postero-anterior view, lateral view, oblique views and tangencial view for each of the deviations. The resulting lunate fossa depression in each X-ray film was analyzed by the AutoCAD 2010® software. RESULTS: The tangencial view was the best one

  8. Eye Involvement in TSC

    Science.gov (United States)

    ... Privacy Policy Sitemap Learn Engage Donate About TSC Eyes Campbell (1905) first described the eye involvement in ... some form of eye involvement. Nonretinal and Retinal Eye Findings Facial angiofibromas may involve the eyelids of ...

  9. Who and What Does Involvement Involve?

    DEFF Research Database (Denmark)

    Hansen, Jeppe Oute; Petersen, Anders; Huniche, Lotte

    2015-01-01

    elucidates how a psycho-ideological discourse positions the mentally ill person as weak, incapable, and ineffective. By contrast, the supporting relative is positioned as a strong, capable, and effective co-therapist. Furthermore, the analysis considers how this dominant discourse of involvement...... theoretical perspective laid out by Ernesto Laclau and Chantal Mouffe, the aim of this study is to show how the dominant discourse about involvement at the political and clinical sites is constituted by understandings of mentally ill individuals and by political objectives of involvement. The analysis...... the responsibility toward the mental health of the ill individual as well as toward the psychological milieu of the family....

  10. 工业脉冲噪声对冲压工听力影响的调查%A survey on effect of industrial impulse noise on hearing in workers for punching

    Institute of Scientific and Technical Information of China (English)

    祖爱华; 崔晨; 王欣; 李红梅; 莫民帅; 赖洪飘

    2012-01-01

    目的 研究工业脉冲噪声对冲压工听力的影响.方法 选择442名冲压工、128名研磨工分别为脉冲噪声组和稳态噪声接触组,另选择208名非噪声作业的装配工为对照组;对其纯音气导听阈测试结果进行统计分析.结果 44.3%冲压工被检出高频听力损失,4.1%冲压工被检出观察对象,2.0%冲压工被检出疑似噪声聋,脉冲噪声对听力损害高于稳态噪声组(P<0.01).冲压工累积噪声暴露量( CNE)每增加1dB(A)·年,出现听力损失的风险相应增加12.3%(P<0.01):研磨工累积噪声暴露量(CNE)每增加1dB(A)·年,听力损失的风险相应增加9.3%(P<0.05).结论 工业脉冲噪声对听力的损害大于稳态噪声.%Objective To explore the effect of industrial impulse noise on hearing in workers for punching.Methods 442 workers for punching and 128 workers for grinding were assigned to impulse noise group and steady-state noise group; 208 assembly workers without noise exposure were selected as control group.The results of pure-tone air conduction threshold audiometry were analyze.Results High-frequency hearing loss was detectable in 44.3% of the workers for punching observed objects was in 4.1%; and noise-induced deafness was in 2.0%.Rate of hearing loss was higher in the impulse noise group than in the steady-state noise group ( P < 0.01 ).With an elevation in CNE of 1dB ( A ) ·year,the risk of hearing loss in the workers for punching increased 12.3% ( P< 0.01 ) and the risk in those for grinding increased 9.3% ( P < 0.05 ).Conclusions Industrial impulse noise is worse than steady-state noise in damage to hearing.

  11. Data Communication Between PC and NC Punching Machine Based on RS232 Interface%基于RS232接口的PC与数控冲床的数据通讯

    Institute of Scientific and Technical Information of China (English)

    邱兆义; 秦自凯; 郭林松

    2012-01-01

    介绍了RS232接口的结构及传输原理,详述了基于RS232接口的通讯系统的软、硬件配置,并对软、硬件的通讯参数设置方法进行了阐述,利用WinPCIN通讯软件在Windows XP操作系统环境下实现了PC与数控冲床的数据通讯。%RS232 interface architecture and the principles of transmission are introduced.Software and hardware configuration of communication systems based on RS232 interface are described in detail.With the method of setting communication parameters for software and hardware,data communication using WinPCIN software between PC and NC punching machine is realized in the environments of Windows XP.

  12. The error compensation of the CNC punching line for truck U-beam%汽车U型纵梁数控冲孔线的加工误差补偿

    Institute of Scientific and Technical Information of China (English)

    刘林林; 陈晓倩; 李松福; 郝毅

    2012-01-01

    The principle of error compensation of the CNC punching line for truck U-beam has been introduced. By considering of all the factors which influence the machining accuracy, the problems during error compensation process have been analyzed. Then the improving method has been put forward, which can raise the productivity and accuracy of the production line.%介绍了汽车U型纵粱数控冲孔线加工误差补偿原理.综合影响机床加工精度的因素,对误差补偿过程中存在的问题进行分析,并提出改进办法,以提高设备的生产效率和加工精度.

  13. Acceleration of cutaneous healing by electrical stimulation: degenerate electrical waveform down-regulates inflammation, up-regulates angiogenesis and advances remodeling in temporal punch biopsies in a human volunteer study.

    Science.gov (United States)

    Sebastian, Anil; Syed, Farhatullah; Perry, Donna; Balamurugan, Vinayagapriya; Colthurst, James; Chaudhry, Iskander H; Bayat, Ardeshir

    2011-11-01

    We previously demonstrated the beneficial effect of a novel electrical stimulation (ES) waveform, degenerate wave (DW) on skin fibroblasts, and now hypothesize that DW can enhance cutaneous wound healing in vivo. Therefore, a punch biopsy was taken from the upper arm of 20 volunteers on day 0 and repeated on day 14 (NSD14). A contralateral upper arm biopsy was taken on day 0 and treated with DW for 14 days prior to a repeat biopsy on day 14 (ESD14). A near-completed inflammatory stage of wound healing in ESD14, compared to NSD14 was demonstrated by up-regulation of interleukin-10 and vasoactive intestinal peptide using quantitative real time polymerase chain reaction and down-regulation of CD3 by immunohistochemistry (IHC) (p advanced remodeling phase.

  14. 轴瓦下料、打钢印、冲弯整形连续模设计%Continuous mould design for bearing bush blanking, steel seal impressing,punching bend and shape modification

    Institute of Scientific and Technical Information of China (English)

    张会

    2011-01-01

    轴瓦是内燃机的重要零件之一,主要起支承载荷和传递运动的作用.该零件要求的尺寸精度高,且零件表面标识要求字迹清晰、无残缺、无突起感,现在生产基本是采用单工序制造,导致轴瓦加工工序比较繁琐.本文基于以上原因,在结合轴瓦下料、打钢印和冲弯整形等3道工序成形工艺分析的基础上,提出了将该3道工序整合成为一套多工位连续模的冲压方案,采用该多工位连续模不仅能满足生产要求,且能在保证精度的前提下提高效率、降低成本.%Bearing bush is one of the important parts of gas engine, which is mainly bearing load between hole and movement. The part is required to have high precision and clearl and complete logo on the surface. The part is mainly manufactured by single-process which results in complex process. According to the above reasons, and based on the a-nalysis of forming process about bearing bush blanking, steel seal impressing and punching and bending, a set of punching case for multistage continuous mould instead of three stages was put forward, using which the producing requirements were met , the efficiency was improved and the cost was lowered with qualified precision.

  15. An SCM Control-based Design of Automatic Feeding Device in Punching Machine%基于单片机控制的冲压机床自动供料装置设计

    Institute of Scientific and Technical Information of China (English)

    甄久军; 杨战民; 孙勇震

    2012-01-01

    This paper provides a mechanical body design for automatic feeding device (AFD) and the control scheme based on SCM. The AFD takes the movements of the plunger chip as a power source, by the slider mechanism and the ratchet pawl mechanism, and re- alizes the circumrotated-intermission feeding mode. SCM automatically performs the functions of cutting down time of the power of the machine tool motor, counting the supplies and warning of short supplies. The device supports the punching machine to work continuous- ly, can greatly increase productivity and extend the life of the punching machine brake belt, while avoiding the workers' hands directly into the die stamping workspace security incidents that may arise.%提供了自动送料装置的机械本体设计和单片机的控制方案。自动送料装置采用冲压机床冲头的上下运动作为动力源,通过滑块机构、棘轮棘爪机构,实现冲头的上下运动到棘轮水平回转一间歇送料方式。单片机控制实现自动切断机床电机电源停机、供料计数、缺料报警等功能。该装置支持冲压机床连续工作,可大大提高生产率并延长冲压机床制动皮带的寿命,同时避免了工人手部直接进入模具冲压工作区而可能出现的安全事故。

  16. 利用响应面法研究微孔处理杨木单板的胶合性能%Bonding Properties of Poplar Veneer Punched with Micro-holes by Response Surface Methodology

    Institute of Scientific and Technical Information of China (English)

    唐忠荣; 黄健; 戴玉玲; 丰江拓

    2015-01-01

    利用响应面法分析研究了经微孔处理后的杨木单板的胶合性能。通过对杨木单板进行微孔处理,可使胶黏剂通过微孔渗入单板体内,增加杨木单板的本体强度,同时也可使相邻胶层透过微孔形成一体而增加单板的胶合强度等,以期制造出一种高性能的地板基材。结果表明:在试验范围内,随微孔孔径增大,孔距减小和施胶量的增加,其胶合强度增加;随热压压力增加,胶合强度先增强,当压力超过0.8 MPa,胶合强度反而降低。%We studied the bonding properties of poplar veneer punched with micro-holes by using response surface experiment. The permeability of poplar veneer increased after micro-hole punching.The adhesive could penetrate into the veneer through these micro holes, and the poplar veneer was strengthened.Through micro holes, the neighboring glue lines formed a whole to increase the bonding strength of veneers.Expecting to produce a high performance floor material.The bonding strength of poplar plywood increased with the increasing of micro-hole diameter,resin content , and the decreasing of holes distance.With the increasing of hot pressing pressure, the bonding strength was improved firstly, however, it declined when the pressure exceeded 0.8 MPa.

  17. Research on water and oil-repellent finish of polyester needle punched nonwoven filter material%涤纶针刺滤料的拒水拒油整理工艺研究

    Institute of Scientific and Technical Information of China (English)

    曹小敏; 崔运花

    2015-01-01

    使用FG-910含氟拒水拒油整理剂对涤纶针刺滤料进行拒水拒油整理,研究了在整理过程中五个主要因素对整理效果的影响规律,并进行了正交优化试验. 结果表明:最佳的整理工艺参数是浸渍温度55 ℃、浸渍时间25 min、FG-910质量浓度60 g/L、焙烘温度150 ℃和焙烘时间150 s,在该条件下整理可使涤纶针刺滤料的拒水等级和拒油等级都达到8级,且透气率变化率达到18.75%,可有效地改善滤料的过滤性能.%Used fluorinated reagent FG-910 to do water an filter material , the influence of five major factors on the finishing effects was studied , and then did orthogonal optimization test .The results showed that the optimum finishing process as follows:dipping temperature was 55 ℃, dipping time was 25 min, FG-910 concentration was 60 g/L, curing tempera-ture was 150 ℃and curing time was 150 s.Under this condition water-repellency and oil-repellency grade of polyester needle punched filter material has reached eight , and the permeability has reached 18.75%, which improved the filtration performance of filter media effectively . d oil repellent finishing for polyester needle punched

  18. Lung Involvement in TSC

    Science.gov (United States)

    ... Privacy Policy Sitemap Learn Engage Donate About TSC Lungs Lung involvement in tuberous sclerosis complex (TSC) has ... testing. (Krueger et al., 2013) What Are the Lung Features of TSC? Two forms of lung involvement ...

  19. 剪切修正GTN模型在小冲杆试验中的应用研究%Study on the Application of Shear Modified GTN Model to Small Punch Test

    Institute of Scientific and Technical Information of China (English)

    孙权; 陈建钧; 李晓雪; 闫玉曦; 潘红良

    2014-01-01

    As an important non-standard test technology, the testing result of small punch test(SPT) is largely influenced by the experiment condition. In the research of SPT, an appropriate mechanical constitutive model of material is much needed. The shear modified GTN model proposed by NAHSHON is implemented into ABAQUS via user defined material subroutine VUMAT to study the material fracture behavior at various stress triaxialities. The undamaged elastic-plastic mechanical properties of the cold rolled silicon steel are obtained by the tensile test. The damage evolution parameters of void nucleation are determined by experiment data of tensile test combined with a large number of simulations. The shear modified parameter that characterizes the contribution of void distortion to damage evolution is identified by the comparison of the results of pure shear test simulations and the experiment data. The shear modified GTN model is used to simulate the small punch test. The results show that, as the void distortion is taken into account in damage evolution, the prediction results of the shear modified GTN model is much more consistent with experiment data than the original GTN model. It comes to the conclusion that the shear modified GTN model can reveal the failure mechanism of material better in intrinsic, and is a better choice to apply in the study of small punch test.%小冲杆试验作为一种非标准的微试样测试技术,能有效地获取薄板结构的材料参数。而选用合适的损伤模型对准确表征材料变形到断裂的整个过程有着重要影响。基于NAHSHON提出的含剪切修正项的Gurson-Tvergaard-Needleman(GTN)模型,通过有限元软件ABAQUS及用户自定义子程序VUMAT考察不同应力三轴度对断裂失效的影响。采用有限元模拟和拉伸试验获得冷轧硅钢材料的无损伤弹塑性力学参数以及GTN损伤演化模型中的形核参数和临界断裂参数,通过纯剪切试验和数值模拟的对

  20. Doctors' involvement in torture

    DEFF Research Database (Denmark)

    Sonntag, Jesper

    2008-01-01

    Doctors from both non-democratic and democratic countries are involved in torture. The majority of doctors involved in torture are doctors at risk. Doctors at risk might compromise their ethical duty towards patients for the following possible reasons: individual factors (such as career, economic...

  1. 土工织物淤堵程度的量化方法探讨%A study on Permeability Forcast of Needle Punched Non-woovonb for Geotextile Use

    Institute of Scientific and Technical Information of China (English)

    周蓉; 刘逸新

    2001-01-01

    The permeability coefficient of geotextiles was calculated based on 24 hours continul clogging test of different needle punched fabric samples. According to the obtained data, the thesis studied choke level and forcost permeability by using Time-Alignment analysis method. The result showed that it would provide an exact and reliable designing basis for the geotextiles in engineering pracilce%通过对不同规格针刺土工织物连续24小时的反复实验,计算土工织物渗透性能的变化,根据数据与时间密切相关性采用时间序列分析方法,进行土工织布淤堵程度的量化分析和渗透性能的预测,从而为土工织物的工程应用提供准确可靠的设计依据。

  2. Effect of workpiece viscosity on strain unevenness during equal channel angular extrusion: CFD 2D solution of Navier-Stokes equations for the physical variables ‘flow velocities—punching pressure’

    Science.gov (United States)

    Perig, Alexander V.; Golodenko, Nikolai N.

    2016-11-01

    The present article addresses strain unevenness effects during equal channel angular extrusion (ECAE) of physical models of polymer workpieces with viscosity flow features through a Segal die with channel intersection angle of 2θ = 90°. Computational viscous flow lines, flow velocity fields, and material dead zone formation in the physical simulation of ECAE have been numerically derived for planar flow of viscous incompressible continua in an angular die with 2θ = 90°. This is accomplished through the introduction of Navier-Stokes equations with the following dimensionless physical variables: polymer model local flow velocities u, v and punching pressure p. Derived experimental results are grounded on the application of the following physical simulation techniques: marker method, based on harder disperse particles partially forcing into the front faces of soft workpieces; layered model production by assembling the workpiece soft model with different layers, and circular gridlines use with viscous flow of the polymer soft model. Good agreement has been found between the computational and observable physical simulation results. Based on the obtained results, recommendations are made for polymer ECAE technology enhancement and angular die design for polymer workpiece pressure forming.

  3. Consumer Involvement in Rehabilitation

    Science.gov (United States)

    Daniels, Susan

    1976-01-01

    With the emphasis on consumer involvement in the Rehabilitation Act of 1973, changes in the counseling relationship must occur. This article discusses new interaction patterns for consumer and counselor. (Author)

  4. Clinical studies involving probiotics

    OpenAIRE

    Degnan, Fred H

    2012-01-01

    Researchers from a diverse array of scientific disciplines have focused and continue to focus on opportunities and areas for responsible clinical research involving the possible beneficial health effects of “probiotics.” Investigators and researchers should be aware that not all clinical research involving probiotics reasonably falls within the requirements of the “investigational new drug” (IND) rubric administered and enforced by the US Food and Drug Administration. In determining whether a...

  5. Pancreatic Involvement in Melioidosis

    Directory of Open Access Journals (Sweden)

    Vui Heng Chong

    2010-07-01

    Full Text Available Context Melioidosis is endemic to tropical regions and, despite the common occurrence of intra-abdominal abscesses, pancreatic involvement in melioidosis has not previously been reported. Objective We report our experience with pancreatic melioidosis. Patients All 65 patients treated for melioidosis who had computed tomography (CT scans were identified from prospective databases and were retrospectively reviewed. Main outcome measures A detailed review of cases with pancreas involvement was carried out. Results There were four cases (three males and one female; median age 29.5 years, range: 25-48 years with pancreatic melioidosis, giving a prevalence of 6.2%. All had predisposing conditions (two had poorly controlled diabetes mellitus and two had thalassemia for melioidosis. Fever (100%, anorexia (100%, weight loss (100%, rigor (75% and abdominal pain (75% were the most common symptoms at presentation and the median duration of symptoms before presentation was six weeks (range: 2-8 weeks. All pancreatic abscesses were detected on CT scan. Multiple foci involvement was common (3 to 6 sites: blood (4 patients, liver (3 patients, psoas muscle (2 patients, spleen (2 patients, infected ascites (2 patients and lung (1 patient. Pancreatic involvement ranged from multi-focal micro-abscesses to focal large abscesses and involved all parts of the pancreas (body 100%, head 75% and tail 50%. Associated pancreatic findings included splenic vein thrombosis, peripancreatic inflammation and peripancreatic fat streaking. All the pancreatic abscesses were resolved with antibiotics without requiring pancreatic abscess drainage (including one patient who died from disseminated melioidosis. Conclusion Pancreatic involvement typically occurs as part of multi-organ involvement and commonly manifests as multifoci micro-abscesses. Associated pancreatic abnormalities were also common. All responded to treatment without requiring drainage

  6. [Pulmonary involvements of sarcoidosis].

    Science.gov (United States)

    Ohmichi, M; Hiraga, Y; Hirasawa, M

    1990-01-01

    We reported about intrathoracic changes and prognosis of 686 patients with sarcoidosis diagnosed in our hospital between 1963 and 1988. We evaluated CT findings in 135 patients with sarcoidosis and found pulmonary involvements in 81. We analyzed CT findings according to the classification by Tuengerthal which classified radiographic findings combining ILO classification of pneumoconiosis and characteristic findings of bronchovascular sheath with sarcoidosis. The CT findings were as follows: small opacities (44 out of 81 cases, 54.3%), large opacities (37 cases, 46.7%). Additional findings were as follows: peribronchial marking (42 cases, 51.9%), contraction (17 cases, 21.0%), pleural involvement (9 cases, 11.1%), bulla (5 cases, 6.2%). The characteristic CT findings of serious sarcoidosis were extasis of bronchus, thickening of the bronchial wall, unclearness of vascular shadow, atelectasis and thickening of pleura. Concerning the prognosis of pulmonary involvement, according to age, patients younger than 30 years old at initial diagnosis were better than those of 30 years and over in terms of disappearance of pulmonary involvements. According to stage, patients of stage I and stage II were better than those of stage III. Among the patients we were able to observe chest X-ray findings during five years according to the character of shadow, ill-defined shadow of small opacities and rounded shadows of large opacities had a higher disappearance rate of pulmonary involvements than irregular shadows of large opacities, atelectasis and contraction.

  7. Musculoskeletal involvement in sarcoidosis*, **

    Science.gov (United States)

    Nessrine, Akasbi; Zahra, Abourazzak Fatima; Taoufik, Harzy

    2014-01-01

    Sarcoidosis is a multisystem inflammatory disorder of unknown cause. It most commonly affects the pulmonary system but can also affect the musculoskeletal system, albeit less frequently. In patients with sarcoidosis, rheumatic involvement is polymorphic. It can be the presenting symptom of the disease or can appear during its progression. Articular involvement is dominated by nonspecific arthralgia, polyarthritis, and Löfgren's syndrome, which is defined as the presence of lung adenopathy, arthralgia (or arthritis), and erythema nodosum. Skeletal manifestations, especially dactylitis, appear mainly as complications of chronic, multiorgan sarcoidosis. Muscle involvement in sarcoidosis is rare and usually asymptomatic. The diagnosis of rheumatic sarcoidosis is based on X-ray findings and magnetic resonance imaging findings, although the definitive diagnosis is made by anatomopathological study of biopsy samples. Musculoskeletal involvement in sarcoidosis is generally relieved with nonsteroidal anti-inflammatory drugs or corticosteroids. In corticosteroid-resistant or -dependent forms of the disease, immunosuppressive therapy, such as treatment with methotrexate or anti-TNF-α, is employed. The aim of this review was to present an overview of the various types of osteoarticular and muscle involvement in sarcoidosis, focusing on their diagnosis and management. PMID:24831403

  8. Musculoskeletal involvement in sarcoidosis

    Directory of Open Access Journals (Sweden)

    Akasbi Nessrine

    2014-04-01

    Full Text Available Sarcoidosis is a multisystem inflammatory disorder of unknown cause. It most commonly affects the pulmonary system but can also affect the musculoskeletal system, albeit less frequently. In patients with sarcoidosis, rheumatic involvement is polymorphic. It can be the presenting symptom of the disease or can appear during its progression. Articular involvement is dominated by nonspecific arthralgia, polyarthritis, and Löfgren's syndrome, which is defined as the presence of lung adenopathy, arthralgia (or arthritis, and erythema nodosum. Skeletal manifestations, especially dactylitis, appear mainly as complications of chronic, multiorgan sarcoidosis. Muscle involvement in sarcoidosis is rare and usually asymptomatic. The diagnosis of rheumatic sarcoidosis is based on X-ray findings and magnetic resonance imaging findings, although the definitive diagnosis is made by anatomopathological study of biopsy samples. Musculoskeletal involvement in sarcoidosis is generally relieved with nonsteroidal anti-inflammatory drugs or corticosteroids. In corticosteroid-resistant or -dependent forms of the disease, immunosuppressive therapy, such as treatment with methotrexate or anti-TNF-α, is employed. The aim of this review was to present an overview of the various types of osteoarticular and muscle involvement in sarcoidosis, focusing on their diagnosis and management.

  9. Involve physicians in marketing.

    Science.gov (United States)

    Randolph, G T; Baker, K M; Laubach, C A

    1984-01-01

    Many everyday problems in medical group practice can be attacked by a marketing approach. To be successful, however, this kind of approach must have the full support of those involved, especially the physicians, since they are the principal providers of healthcare services. When marketing is presented in a broad context, including elements such as patient mix, population distribution, and research, physicians are more likely to be interested and supportive. The members of Geisinger Medical Center's Department of Cardiovascular Medicine addressed their patient appointment backlog problem with a marketing approach. Their method is chronicled here and serves as a fine example of how physician involvement in marketing can lead to a positive outcome.

  10. Comparative accuracy of anal and cervical cytology in screening for moderate to severe dysplasia by magnification guided punch biopsy: a meta-analysis.

    Directory of Open Access Journals (Sweden)

    Wm Christopher Mathews

    Full Text Available BACKGROUND: The accuracy of screening for anal cancer precursors relative to screening for cervical cancer precursors has not been systematically examined. The aim of the current meta-analysis was to compare the relative accuracy of anal cytology to cervical cytology in discriminating between histopathologic high grade and lesser grades of dysplasia when the reference standard biopsy is obtained using colposcope magnification. METHODS AND FINDINGS: The outcome metric of discrimination was the receiver operating characteristic (ROC curve area. Random effects meta-analysis of eligible studies was performed with examination of sources of heterogeneity that included QUADAS criteria and selected covariates, in meta-regression models. Thirty three cervical and eleven anal screening studies were found to be eligible. The primary meta-analytic comparison suggested that anal cytologic screening is somewhat less discriminating than cervical cytologic screening (ROC area [95% confidence interval (C.I.]: 0.834 [0.809-0.859] vs. 0.700 [0.664-0.735] for cervical and anal screening, respectively. This finding was robust when examined in meta-regression models of covariates differentially distributed by screening setting (anal, cervical. CONCLUSIONS: Anal cytologic screening is somewhat less discriminating than cervical cytologic screening. Heterogeneity of estimates within each screening setting suggests that other factors influence estimates of screening accuracy. Among these are sampling and interpretation errors involving both cytology and biopsy as well as operator skill and experience.

  11. Reaching Parents Through Involvement

    Science.gov (United States)

    Schmerber, Ronald J.

    1974-01-01

    The parent involvement program evolved from the needs of parents. Basic to the program is the concept of parenting, which implies taking positive action to facilitate and meet the needs of the children ahe family. Parents participate in the development, implementation, and evaluation of their child's program. (Author)

  12. Estudo comparativo entre o xenodiagnóstico artificial realizado imediatamente e quatro horas após a coleta de sangue Comparative study between artificial xenodiagnosis performed immediately and four hours after venous punch

    Directory of Open Access Journals (Sweden)

    Cleudson Castro

    2004-03-01

    Full Text Available Foi realizado xenodiagnóstico artificial, imediatamente e quatro horas após a coleta do sangue, em 63 pacientes, sendo 29 (46% do sexo masculino e 34 (54% do sexo feminino. A idade mínima foi 18 anos e a máxima 68, sendo a idade média 39 anos. Onze (17,5% pacientes apresentaram resultados positivos, sendo 8 (12,7% no exame imediato e 7 (11,1% no exame 4 horas após. Os oito pacientes do exame imediato apresentaram 17 pools positivos e os sete do xenodiagnóstico de quatro horas mostraram 11 pools positivos (p =0,34. Quatro pacientes foram positivos exclusivamente no xenodiagnóstico imediato, três somente no exame de 4 horas e quatro positivos em ambos. Os dados autorizam realizar o xenodiagnóstico, até quatro horas após a extração do sangue, sem prejuízo no resultado do exame.Artificial xenodiagnosis was performed immediately after blood venous punch and then four hours later on 63 patients; 29 (46% were male and 34 (54% female, mean age 39 years (range 18 to 68 years. Eleven (17.5% patients presented positive exams, of which eight (12.7% were from immediate xenodiagnosis and 7 (11.1% xenodiagnosis fours hours after. Eight patients showed 17 positive pools from immediate xenodiagnosis and 7 patients with xenodiagnosis four hours later showed 11 positive pools (p = 0.34. Four patients were positive only on immediate xenodiagnosis, three only on xenodiagnosis 4 hours after and four were positive in both. The data demonstrate that xenodiagnosis can be performed up to four hours after blood collection without impairing the test results.

  13. 变量柱塞泵"卡盘"新工艺及冷冲模%New Technology and Cold-punching Mould of Variable Displacement Piston Pump "Chuck"

    Institute of Scientific and Technical Information of China (English)

    邓外梅

    2015-01-01

    该文中零件"卡盘"属于粉末冶金模压件,由于该零件形状复杂、尺寸及位置度要求高,在国内生产该产品,一是价格高,二是精度达不到要求.为此,在工艺上用机加材料(氮化钢)替代粉末冶金模压件,而在机加件上的"9-R13+0.4"弧形缺口在底部的残余料无法去除,通过设计制造冷冲模,解决了该难题,并保证了卡盘的尺寸精度及位置度要求,为后续的新品研发开辟了一条新的工艺途径.%The part"chuck"original workpiece in this article is defined as powder metallurgy mold piece. Due to the complexity of the part and high demand of the shape, size and position degrees, the price is high, and the accuracy can not meet the requirements if it is produced in do?mestic;Therefore, the powder metallurgy mold piece is replaced for machining materials (Nitriding steel)for process. The bottom residual mate?rials of the"9-R13+0.4"arc gap on the machining piece can't be removed, however, through the design and manufacture of cold punching mould, this problem can be solved, to ensure the chuck size precision and positioning requirements, developing a new way of process for the subse?quent new products'research and development.

  14. 平面双曲柄冲压机刚柔耦合模型的动态仿真%Dynamic Simulation for Rigid-flexible Coupling Model of Planar Double Crank Punch Press

    Institute of Scientific and Technical Information of China (English)

    刘波; 梅瑛; 李瑞琴

    2012-01-01

    Using the key technology of combined simulation based on the mechanical dynamics analysis software ADAMS and the finite element analysis software ANSYS, the multi - rigid and rigid - flexible coupling virtual prototype models of planar double - crank punching press are established. These two models are carried on simulation analysis, and the simulation results between these models are compared, then a conclusion that the rigid - flexible coupling model can reflect more accurately on the dynamic performance of the mechanism is obtained and the calculation accuracy is improved. The simulation results show that the influence on kinematical accuracy of the mechanism produced by flexible body can not be ignored. The establishment of the rigid - flexible coupling virtual prototype provided a basis for accurate dynamical simulation and actual physical prototype manufacturing.%采用机械动力学分析软件ADAMS和有限元分析软件ANSYS联合仿真的关键技术,建立平面双曲柄冲压机的多刚体及刚柔耦合的虚拟样机模型,对其进行仿真分析,比较了两者的仿真结果,可以得出刚柔耦合模型更能真实地反映机构的动态性能,提高计算精度,仿真结果表明柔性体对机构运动精度的影响不容忽视.刚柔耦合虚拟样机的建立为精确进行动力学仿真和实际物理样机的制造提供了基础.

  15. Microorganisms involved in MIC

    Energy Technology Data Exchange (ETDEWEB)

    Sorensen, K. [Danish Technological Institute (Denmark)

    2011-07-01

    Microbiologically influenced corrosion (MIC) is a widespread problem that is difficult to detect and assess because of its complex mechanism. This paper presents the involvement of microorganisms in MIC. Some of the mechanisms that cause MIC include hydrogen consumption, production of acids, anode-cathode formation and electron shuttling. A classic bio-corrosive microorganism in the oil and gas industry is sulphate-reducing prokaryotes (SRP). Methanogens also increase corrosion rates in metals. Some of the phylogenetic orders detected while studying SRP and methanogens are archaeoglobales, clostridiales, methanosarcinales and methanothermococcus. There were some implications, such as growth of SRP not being correlated with growth of methanogens; methanogens were included in MIC risk assessment. A few examples are used to display how microorganisms are involved in topside corrosion and microbial community in producing wells. From the study, it can be concluded that, MIC risk assessment includes system data and empirical knowledge of the distribution and number of microorganisms in the system.

  16. Involved Node Radiation Therapy

    DEFF Research Database (Denmark)

    Maraldo, Maja V; Aznar, Marianne C; Vogelius, Ivan R

    2012-01-01

    PURPOSE: The involved node radiation therapy (INRT) strategy was introduced for patients with Hodgkin lymphoma (HL) to reduce the risk of late effects. With INRT, only the originally involved lymph nodes are irradiated. We present treatment outcome in a retrospective analysis using this strategy...... to 36 Gy). Patients attended regular follow-up visits until 5 years after therapy. RESULTS: The 4-year freedom from disease progression was 96.4% (95% confidence interval: 92.4%-100.4%), median follow-up of 50 months (range: 4-71 months). Three relapses occurred: 2 within the previous radiation field......, and 1 in a previously uninvolved region. The 4-year overall survival was 94% (95% confidence interval: 88.8%-99.1%), median follow-up of 58 months (range: 4-91 months). Early radiation therapy toxicity was limited to grade 1 (23.4%) and grade 2 (13.8%). During follow-up, 8 patients died, none from HL, 7...

  17. Between Involvement and Detachment

    DEFF Research Database (Denmark)

    Thomasen, Gry

    Between Involvement and Detachment takes grasp with the Johnson administration’s (1963-1969) perceptions of and responses to the Western European realignments. Arguing that the Johnson administration set out to maintain the American unilateralist position in the transatlantic relation, not just a...... the administration maintained. Despite changed circumstances, the Nixon administration’s relation with and perceptions of the European allies largely resemble the traditionalist view of the Johnson administration....

  18. Joint involvement in Ochronosis

    OpenAIRE

    Biehl, Christoph; Thormann, U.; Madera, N.; Heiß, C

    2016-01-01

    Introduction: Ochronosis is a metabolic disorder that is usually associated with the typical brown-black colored urine and retention of phenol complexes in sclera and skin. Kidney and heart are also checked, the disease can also cause damage in these organs. The disease is less associated with degenerative changes in the joints of the limbs and the spine. Methods: We report on the progress of a patient with documented family history on alcaptonuria and joint involvement. In the age of 69 ...

  19. Involvement Without Participation?

    DEFF Research Database (Denmark)

    Olsén, Peter

    2012-01-01

    The article presents a case study of a knowledge-intensive company that launched a 2-year project to improve their psychosocial working environment. All parties agreed on the project, and the methods used aimed to promote the involvement of the employees. Surprisingly, the psychosocial working...... and participation. In order to develop a more sustainable and viable psychosocial working environment, a broader and more democratic notion of organisational learning and managing is proposed....

  20. Getting involved in research.

    Science.gov (United States)

    Banner, Davina; Grant, Lyle G

    2011-01-01

    The need for quality nursing research to promote evidence-based practice and optimize patient care is well recognized. This is particularly pertinent in cardiovascular nursing, where cardiovascular disease continues to be the leading cause of morbidity and mortality worldwide (World Health Organization, 2007). Across the spectrum of academic, clinical, and health care administration nursing roles, research remains fundamental to bridging theory, practice, and education (LoBiondo-Wood, Haber, Cameron, & Singh, 2009). Despite recognition of the importance of nursing research, the gap between research and practice continues to be an ongoing issue (Funk, Tornquist, & Champagne, 1995; Pettengill, Gillies, & Clark, 1994; Rizzuto, Bostrom, Suterm, & Chenitz, 1994; Rolfe, 1998). Nurses are appropriately situated to contribute to research that improves clinical outcomes and health service delivery. However, the majority of nurses in clinical practice do not have a significant research component structured into their nursing role. In this research column, the authors outline the importance of nurses being engaged in research and present some different levels of involvement that nurses may assume. A continuum of nursing research involvement includes asking researchable questions, being a savvy consumer of research evidence, finding your own level of research involvement, and aspiring to lead.

  1. Involvement in Physical Activity

    Directory of Open Access Journals (Sweden)

    James Gavin

    2013-04-01

    Full Text Available A total of 1,096 adolescents participated in 123 focus groups regarding the perceived outcomes of their involvement in sports and physical activity (PA. The groups, segmented by grade level, sex, and school types, were conducted in both public and private high schools in Montreal, Quebec. We sought to understand, through the participants’ own words, their perception of the outcome matrix of involvement in sports and PA. Focus group questions emphasized changes that adolescents associated with such engagement. In particular, participants were asked how sports and PA might influence behaviors, emotional states, personal characteristics, and other outcomes. Twelve themes were identified in the responses: Positive Health and Physical Changes (18.5%, Activity-Related Positive Emotions (15.6%, and Personal Learning (11.3% were most prevalent in the discussions. A cluster of deeper personal changes thematically described as Self-Identity, Autonomy, and Positive Character Development accounted for another 16.5% of the responses. Relatively few commentaries emphasized negative effects (7.1%. Converting the proportions of qualitative data into a quantitative index allowed us to analyze potential differences in emphasis according to sex, age, and school type. Though a few significant findings emerged, the larger pattern was of a uniform perceptual map across the variables for this adolescent sample. Implications drawn from this investigation highlight the need to clearly articulate concrete pathways to positive nonphysical changes (e.g., mood states, autonomy, positive character development from engagements in sports and PA.

  2. Intervention or Involvement

    DEFF Research Database (Denmark)

    Liebst, Lasse Suonperä; Ejbye-Ernst, Peter; Heinskou, Marie Bruvik

    patrons plays in bouncers’ use of violence. To address this gap, we offer a micro-interactional analysis of violent behavior of bouncers. We observed video surveillance footage of naturally occurring barroom conflicts involving bouncers. A quantitative analysis shows that violence is relatively uncommon......, and when it occurs, it is associated with interactions where bouncers are a party to the conflict, compared to situations where they intervene as a third party. Further, a visual analysis of emotional cues identifies anger as a plausible mechanism leading bouncers to practice violent aggression. Thus......, adding to the situational and cultural interpretations in the literature, this study highlights interactional structures as a feature influencing the likelihood of violent bouncer behavior. In considering the implications of our study, we discuss strengths and weaknesses of applying video data analysis...

  3. Between Involvement and Detachment

    DEFF Research Database (Denmark)

    Thomasen, Gry

    a traditional reading of de Gaulle’s policies, and feared that if Gaullist thinking spread among the European allies, it would merit to a return to traditional European power politics. The analysis shows that, by 1964 the administration believed, according to this study, that NATO’s principle of integration......Between Involvement and Detachment takes grasp with the Johnson administration’s (1963-1969) perceptions of and responses to the Western European realignments. Arguing that the Johnson administration set out to maintain the American unilateralist position in the transatlantic relation, not just......, essentially, were detached as America rejected the European reason of state. The Western European realignments were recorded in the Johnson administration with de Gaulle’s critique of US hegemony in Western Europe in the early 1960s. The thesis argues that the administration to a large extent had...

  4. Effectiveness of citizen involvement

    Energy Technology Data Exchange (ETDEWEB)

    Robinson, L. [Prince William Sound Regional Citizen' s Advisory Council, Anchorage, AK (United States)

    2006-07-01

    This paper reviewed the rise of citizen involvement in industry that affects their community. Following the Exxon Valdez oil spill (EVOS) in 1989, the Oil Pollution Act of 1990 provided funding by industry for a citizens group to provide oversite of the Alyeska Pipeline Service Agency terminal and associated tankers. That role is currently filled by the Prince William Sound Regional Citizen's Advisory Council, a volunteer organization that represents communities that were affected by the EVOS. The history of the Prince William Sound Regional Citizen's Advisory Council was discussed along with its structure, funding and overview of projects and research into safer transportation of oil, better oil spill response capabilities and improved environmental protection practices. Some of the successes involving citizen input include the requirement that all tankers going into Prince William Sound be double hull by 2015; a world-class system of tugs escorting tankers in Prince William Sound; installation of an ice-detection radar on a small island near the site of the EVOS; a guidebook for communities affected by man-made disasters; identification of nearshore locations that should be the first to be protected in the case of another spill; and, the installation of a system to capture crude oil vapors when tankers take on cargo. Other projects underway include the study of invasive species that can be transported in the ballast water of tankers, efficacy of dispersants, soil contamination at the tanker loading site, emissions of hazardous air pollutants from ballast water treatment processes, and continual review of emergency response plans. In the 17 years since the formation of the Prince William Sound Regional Citizen's Advisory Council, it has been shown that communication and transparency are the keys to solving complacency, which is believed to have been a contributing factor to the EVOS. 3 refs.

  5. 纤维形态对针刺非织造布吸声系数的影响%Effect of fiber morphology on the sound absorption coefficient of needle-punched nonwovens

    Institute of Scientific and Technical Information of China (English)

    吴彤; 于伟东; 郑永红; 何勇

    2015-01-01

    The standing wave tube is used to test the sound absorption properties of several fibrous materials with different shape factors of cross-section, different fineness and diameters, different perimeter ratios and specific surface areas, different fiber volume fractions and porosities. The results show that the shape factor of cross-section influences the sound absorption property of the needle-punched nonwoven to some extent, however the influence is rather complex, and the shape factor of cross-section is not an essential factor of influencing the sound absorption coefficient. Specific surface area of the fibers is the essential factor affecting absorption property:the larger the specific surface area, the greater the gas-solid phase acoustic resistance. The fiber fineness (dtex) is inversely proportional to the specific surface area, so the larger the diameter, the smaller the sound absorption coefficient. The fiber volume fraction is another important factor: the smaller the porosity, the greater the volume fraction, i.e. the smaller the holes, the smaller the porosity, therefore the greater the sound absorption coefficient.%利用驻波管测试方法研究了几种不同截面异形度、不同细度与直径、不同周长比与比表面积,以及不同体积分数与空隙率纤维材料的吸声性能。实验结果表明,纤维异形截面在一定程度上影响材料吸声性能,而吸声系数受纤维异形度的影响较复杂,即异形度不是吸声系数的本质影响因素。纤维比表面积参数是影响吸声性能的本质因素,比表面积越大,气-固相声阻越大,而纤维细度即纤维平均直径与其比表面积成反比,故直径越大,吸声系数越小。纤维体积分数是影响吸声性能的又一本质因素,空隙率越小,体积分数越大,即孔洞越小,空隙率越小,吸声系数越大。

  6. Flexowriters, Punch Paper Poetry and Ontological Gaps

    DEFF Research Database (Denmark)

    Søndergaard, Morten

    2013-01-01

    What is an unheard avant-garde? Of course, the answer may be tautological: no one has ever heard of the unheard avant-garde, as it were. However, rumors and academic intuition has it that the archives are full of unheard stuff. And as everyone working with archives may tell you: the greatest thrill...

  7. Flexowriters, Punch Paper Poetry and Ontological Gaps

    DEFF Research Database (Denmark)

    Søndergaard, Morten

    2013-01-01

    this position as being as close to the current state of affairs at this point in time as may be achieved (and I think it is), then we still need to ask ourselves: what happened to the archive-material that did not ‘fit’ the technologies and politics of the archive? If and when the transformation of the archive...... able to close the gap between the different paradigmatic ‘regimes’ defining the archival practice in the process of transformation. The ‘unheard’ not only witnesses this on an empirical level; it points, I would claim, towards an ontological gap between archival practices and the theoretical scope...

  8. States Punch Reset Button under NCLB

    Science.gov (United States)

    McNeil, Michele

    2012-01-01

    Given the flexibility to revise their academic goals under the No Child Left Behind (NCLB) Act, a vast majority of the states that received federal waivers are setting different expectations for different subgroups of students, an "Education Week" analysis shows. That marks a dramatic shift in policy and philosophy from the original law.…

  9. Boxing headguard performance in punch machine tests.

    Science.gov (United States)

    McIntosh, Andrew S; Patton, Declan A

    2015-09-01

    The paper presents a novel laboratory method for assessing boxing headguard impact performance. The method is applied to examine the effects of headguards on head impact dynamics and injury risk. A linear impactor was developed, and a range of impacts was delivered to an instrumented Hybrid III head and neck system both with and without an AIBA (Association Internationale de Boxe Amateur)-approved headguard. Impacts at selected speeds between 4.1 and 8.3 m/s were undertaken. The impactor mass was approximately 4 kg and an interface comprising a semirigid 'fist' with a glove was used. The peak contact forces were in the range 1.9-5.9 kN. Differences in head impact responses between the Top Ten AIBA-approved headguard and bare headform in the lateral and forehead tests were large and/or significant. In the 8.3 m/s fist-glove impacts, the mean peak resultant headform accelerations for bare headform tests was approximately 130 g compared with approximately 85 g in the forehead impacts. In the 6.85 m/s bare headform impacts, mean peak resultant angular head accelerations were in the range of 5200-5600 rad/s(2) and almost halved by the headguard. Linear and angular accelerations in 45° forehead and 60° jaw impacts were reduced by the headguard. The data support the opinion that current AIBA headguards can play an important role in reducing the risk of concussion and superficial injury in boxing competition and training. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.

  10. [Nail involvement in leprosy].

    Science.gov (United States)

    Belinchón Romero, I; Ramos Rincón, J M; Reyes Rabell, F

    2012-05-01

    Leprosy, a disease caused by Mycobacterium leprae, primarily affects the skin and nerves, but the nails are also involved in as many as 3 out of 4 patients .The factors that trigger nail changes in leprosy are numerous and include repeated trauma, neuropathy, vascular impairment, infections, lepra reactions, and the drugs used to manage the disease. The changes most often reported include subungual hematomas, onycholysis, onychauxis, onychogryphosis, pterygium unguis, and onychoheterotopia, most of which can be attributed to nerve damage and trauma. Furthermore, the acro-osteolysis that occurs in the advanced stages of the disease may present with brachyonychia, racquet nails, or even anonychia. Infections of the nail bed leading to paronychia and onychomycosis should also be taken into account in leprosy. Other typical changes include longitudinal striae, pitting, macrolunula, Terry nails, leukonychia, hapalonychia, and Beau lines. In this review, we describe the principal nail changes associated with leprosy. These changes, which are highly varied and diverse in origin, are in fact a reflection of the significant morbidity caused by M. leprae infection.

  11. Multidrug toxicity involving sumatriptan.

    Science.gov (United States)

    Knittel, Jessica L; Vorce, Shawn P; Levine, Barry; Hughes, Rhome L; Bosy, Thomas Z

    2015-01-01

    A multidrug fatality involving sumatriptan is reported. Sumatriptan is a tryptamine derivative that acts at 5-HT(1B/1D) receptors and is used for the treatment of migraines. The decedent was a 21-year-old white female found dead in bed by her spouse. No signs of physical trauma were observed and a large number of prescription medications were discovered at the scene. Toxicological analysis of the central blood revealed sumatriptan at a concentration of 1.03 mg/L. Following therapeutic dosing guidelines, sumatriptan concentrations do not exceed 0.095 mg/L. Sumatriptan was isolated by solid-phase extraction and analyzed using liquid chromatography-tandem mass spectrometry in multiple reaction monitoring mode. A tissue distribution study was completed with the following concentrations measured: 0.61 mg/L in femoral blood, 0.56 mg/L in iliac blood, 5.01 mg/L in urine, 0.51 mg/kg in liver, 3.66 mg/kg in kidney, 0.09 mg/kg in heart, 0.32 mg/kg in spleen, 0.01 mg/kg in brain, 15.99 mg/kg in lung and 78.54 mg/45 mL in the stomach contents. Carisoprodol, meprobamate, fluoxetine, doxylamine, orphenadrine, dextromethorphan and hydroxyzine were also present in the blood at the following concentrations: 3.35, 2.36, 0.63, 0.19, 0.06, 0.55 and 0.16 mg/L. The medical examiner ruled the cause of death as acute mixed drug toxicity and the manner of death as accident.

  12. Design and simulation of three rigid-one flexible forming hole mechanism of film mulch and punch planter%覆膜穴播机三刚一柔成穴机构的设计及仿真

    Institute of Scientific and Technical Information of China (English)

    刘小龙; 石林榕; 孙伟; 赵武云; 张瑞; 李亚丽; 赵志伟; 吴建民

    2015-01-01

    针对我国覆膜玉米穴播机采用的平行四杆成穴机构作业时垂直入土扰动大、撕膜严重的问题,设计了三刚一柔成穴机构,主要将平行四杆机构从动杆换装为弹簧阻尼杆。基于 Adams 建立三刚一柔成穴机构和平行四杆机构仿真模型,并在相同条件下进行仿真,结果表明:三刚一柔成穴机构的成穴杆在 x 轴水平方向较平行四杆机构位移变化较小且平滑,在 y 轴垂直方向趋势一致;三刚一柔成穴机构的成穴杆对前后土型均有扰动,但扰动力均较小,而平行四杆机构只对前边的土壤有扰动,但扰动力是三刚一柔机构的9.4倍。因此,所设计的三刚一柔成穴机构较平行四杆机构对土壤扰动小,有利于种子发芽,成穴杆不受力时又可恢复至垂直入土的状态,对地膜破坏较小。%Pointed at the problem of large disturbance and seriously tearing film when corn film mulch and punch planter perpendicularly inserted the soil by parallel four-bar mechanism in our country,designed out the three rigid-one flexible forming hole mechanism,the parallel four-bar mechanism was replaced by the spring damping pole.Based on the Adams,established the simulation models as three rigid-one flexible mechanism and parallel four-bar mechanism,and which was simulated at the same conditions.The results showed that:The forming hole pole of the three rigid-one flexible mechanism was less change of displacement and smooth in the level direction in x axis than the parallel four-bar mecha-nism,while in y axis,the vertical direction trend was basically consistent.The pole of the three rigid-one flexible form-ing hole mechanism had slight disturbance to the front and back soil model,but the parallel four-bar mechanism only dis-turbed to the front soil,the disturbing force was 9.4 times higher than the three rigid-one flexible mechanism.Therefore, the design of three rigid-one flexible mechanism had less

  13. Evolution de la résistance au poinçonnement d’un matériau cimentaire soumis à la flamme Evolution of the punching strength of mortar subjected to fire

    Directory of Open Access Journals (Sweden)

    Jauberthie R.

    2012-09-01

    test specimens in the presence of a propane flame. The fibre-reinforced mortar is subjected to the flame on one face; the evolution of the temperature gradient is followed in time. The influence of fibre type is quantified. The cracks appear both on the side exposed to the flame but also, and to a lesser extent on the cold face. After a certain exposure time, the mechanical properties are compared. A mechanical test was developed to determine the influence of cracking on the punching strength. The role of fibres, by their nature and by their position relative to the hot face is analysed. When the plates tested are designed with a low water to cement ratio, the phenomenon of spailling appears. The intensity of this phenomenon varies with the nature of the fibering.

  14. Sacroiliac joint involvement in psoriasis.

    Science.gov (United States)

    Kaçar, Cahit; Sezer, Ilhan; Kocabaş, Hilal; Cay, Hasan Fatih; Cevikol, Can; Alpsoy, Erkan; Melikoğlu, Meltem Alkan; Akman, Ayşe

    2010-07-01

    Psoriasis is a skin disorder that is associated with arthritis. Sacroiliac joint involvement is considered to be less frequent than the other types of psoriatic arthritis. Additionally, the psoriatic sacroiliitis is considered to be asymmetric in general. We aimed to define the frequency and type of sacroiliac involvement in patients with psoriasis. Patients with psoriasis were included the study. Characteristics of skin, nail and articular involvement were noted. Psoriasis area and severity index was calculated. Antero-posterior pelvic X-rays were obtained and graded by two rheumatologists and a radiologist independently. One hundred and thirty-three patients were included. Thirty-seven of patients (27%) have articular involvement symptomatically. The sacroiliac joint involvement was observed in 34 (26%) of patients. More than one-half of sacroiliac involvement was bilateral while less than one-half was in symptomatic patients regarding sacroiliitis. Fifty-seven percentages of all patients have psoriatic nail involvement. Sacroiliac joint involvement did not show any significant association with psoriatic nail involvement or the severity of skin disease. We found higher frequency of sacroiliac joint involvement and bilateral sacroiliitis in patients with psoriasis. This is in contrast to present information about the association of psoriasis and sacroiliitis. These findings need confirmation by further studies and with more sophisticated techniques such as magnetic resonance imaging.

  15. INVOLVEMENT

    Directory of Open Access Journals (Sweden)

    Yeşim ULUSU

    2016-01-01

    Full Text Available The concept of “Involvement” is based on social psychology and specially attitude and attitude change subjects in the area of persuasive communication. The conceptualization of the “involvement” as a phe- nomenon was started to construct especially during the years between 1965-1980 when “involvement” was discussed in many areas of social sciences related to human behavior such as marketing, consumer behavior and advertising with its different dimensions.

  16. INVOLVEMENT

    OpenAIRE

    ULUSU, Yeşim

    2016-01-01

    The concept of “Involvement” is based on social psychology and specially attitude and attitude change subjects in the area of persuasive communication. The conceptualization of the “involvement” as a phe- nomenon was started to construct especially during the years between 1965-1980 when “involvement” was discussed in many areas of social sciences related to human behavior such as marketing, consumer behavior and advertising with its different dimensions.

  17. Monoarticular Hip Involvement in Pseudogout

    Directory of Open Access Journals (Sweden)

    Figen Kocyigit

    2015-01-01

    Full Text Available Pseudogout is the acutest form of arthritis in the elderly. Although clinical manifestations vary widely, polyarticular involvement is typical mimicking osteoarthritis or rheumatoid arthritis. Monoarticular involvement is relatively rare and is generally provoked by another medical condition. There are reported cases of hip involvement by pseudogout in monoarticular form. However, all of the cases were presented as septic arthritis. In this report, we present a case of monoarticular hip involvement mimicking soft tissue abscess. We confirmed the pseudogout diagnosis after ultrasonographic evaluation of the involved hip joint and pathological and biochemical analysis of synovial fluid analysis. Diagnosis is important to avoid unnecessary medical and surgical treatment in cases of the bizarre involvement of hip in pseudogout.

  18. Skin involvement in Dupuytren's disease.

    OpenAIRE

    Wade, R.; Igali, L; Figus, A

    2016-01-01

    Whether the palmar skin has a role in the development, propagation or recurrence of Dupuytren's disease remains unclear. Clinical assessment for skin involvement is difficult and its correlation with histology uncertain. We prospectively biopsied the palmar skin of consecutive patients undergoing single digit fasciectomy (for primary Dupuytren's disease without clinically involved skin) and dermofasciectomy (for clinically involved skin or recurrence) in order to investigate this relationship...

  19. Martial arts injuries.

    Science.gov (United States)

    Pieter, Willy

    2005-01-01

    To review the current evidence for the epidemiology of pediatric injuries in martial arts. The relevant literature was searched using SPORT DISCUS (keywords: martial arts injuries, judo injuries, karate injuries, and taekwondo injuries and ProQuest (keywords: martial arts, taekwondo, karate, and judo), as well as hand searches of the reference lists. In general, the absolute number of injuries in girls is lower than in boys. However, when expressed relative to exposure, the injury rates of girls are higher. Injuries by body region reflect the specific techniques and rules of the martial art. The upper extremities tend to get injured more often in judo, the head and face in karate and the lower extremities in taekwondo. Activities engaged in at the time of injury included performing a kick or being thrown in judo, while punching in karate, and performing a roundhouse kick in taekwondo. Injury type tends to be martial art specific with sprains reported in judo and taekwondo and epistaxis in karate. Injury risk factors in martial arts include age, body weight and exposure. Preventive measures should focus on education of coaches, referees, athletes, and tournament directors. Although descriptive research should continue, analytical studies are urgently needed.

  20. FIGHT ZONE WITH POINTS OF THE SHOTOKAN KARATE FEMALE COMPETITION

    Directory of Open Access Journals (Sweden)

    Nelson Kautzner Marques Junior

    2014-04-01

    Full Text Available The objective of the study was to determine the fight zone with point during the female kumite of competition. This study used a quantitative research for identify the fight zone with point (ippon or waza-ari or not during the female kumite of competition. Were selected on the Internet several championship of kumite of the JKA and of the ITKF. The study detected a high probability of point in the zone 7 and in the zone 2. The study determined that the most points at the corner occurred when the karateka practiced the attack in fight zone. Kruskal-Wallis ANOVA verified significant difference between the fight zone with points, H (10 = 29,49, p = 0,001. The Mann Whitney U test detected significant difference between the zone 5 with waza-ari versus all the zone. The greatest number of points in the fight zone was in agreement with the size of the fight zone. The central zone or zone 5 has 6x6 m, during the female kumite occurred more points, total of 68 waza-aris and 5 ippons. The study on the fight zone with points of the female kumite permits that the karateka has knowledge about the combat zones and guides the karateka before, during and after the female kumite. However, more studies should be done to confirm these findings.

  1. 24-Karat Protection: RFID and Retail Jewelry Marketing

    Directory of Open Access Journals (Sweden)

    David C. Wyld

    2010-01-01

    Full Text Available This article examines the unique value proposition presented by RFID (radio frequency identification forjewelry retailers’ inventory management. The article provides a general overview of RFID technology.The author then presents findings on its use in jewelry retailing to date by innovative companies aroundthe world. The research establishes that RFID-based inventory tracking is exceptionally well-suited to thejewelry industry due a variety of factors, including the values, origins, sizes and form factors of jewelryitems. Early adopting jewelry retailers have found that RFID-based inventory tracking can address theirneeds for better inventory management and control, heightened security, and improved businessintelligence.

  2. Pengendalian Penyakit Karat Daun Kopi dengan Ekstrak Teh Hitam

    Directory of Open Access Journals (Sweden)

    Christanti Sumardiyono

    1996-09-01

    Full Text Available The research was done to know the efficacy of black tea extract to control coffee leaf rust, the most important disease of Arabica coffee caused by the fungus Hemileia vastatrix B et Br. Black tea was extracted by boiling 50 g of tea in 500 ml of water until 50 ml of solution was left and used as spraying material after 10 time dilution. Influence of black tea extract to urediospores germination was done by spore germination technique. Field experiment was done at Pagilaran Tea Plantation with a susceptible Arabica coffee Kate 26 variety. Coffee plants was sprayed with diluted tea extract eight times with 10 days interval and 0,3% of triadimefon was used as standart fungicide. The result showed that black tea extract inhibited germination of urediospora and reduced germtube length up to 10-4 dilution. The extract of black tea could reduce disease intensity of coffee leaf rust in the field better than triadimefon. Ten days after first spraying, disease intensity was reduced but it increased after 5 times spraying. After 8 times spraying disease intensity on coffee tree sprayed with the black tea extract was lower than that sprayed with tradimefon. Key words: black tea, Hemileia vastatrix, triadimefon

  3. Synthesis of Al-ZrAl3 nano structured composites by a colloidal processing route: Mechanical properties by small punch test; Sintesis coloidal de materiales nanoestructurados de Al-ZrAl{sub 3}: Propiedades mecanica mediante el ensayo miniatura de punzonado

    Energy Technology Data Exchange (ETDEWEB)

    Diaz, L. A.; Lopez, M. E.; Rodriguez, C.; Belzunce, J.; Torrecillas, R.

    2009-07-01

    This work describes a new method to obtain Al-Zr intermetallic nano structured materials by using a colloidal processing technique. The combination of Al powders and zirconium IV-propoxide (C{sub 1}2H{sub 2}8O{sub 4}Zr) under controlled conditions results in a metal matrix composite with a homogeneous dispersion of intermetallics. Synthesis was carried out in a tubular furnace under argon and by hot pressing under the same atmospheric conditions. XDR and SEM were used to identify the intermetallic nanoparticles. The Vickers hardness of the ZrAl{sub 3} nano composites and the mechanical behaviour by small punch test were studied. (Author) 21 refs.

  4. Citizen Involvement in Public Television.

    Science.gov (United States)

    Wenner, Lawrence A.

    The purpose of this study was to evaluate the amount and quality of citizen involvement in public television. From the perspective of the "average citizen," the concept of involvement is considered with regard to the Carnegie Commission, the Corporation for Public Broadcasting (CPB) borad of directors, the National Citizens Committee for…

  5. Preparing Teachers for Parent Involvement.

    Science.gov (United States)

    Safran, Daniel

    This paper examines the potential impact of parent involvement in the formal education of their children and suggests ways that teacher education can be restructured to prepare teachers to work with parents. This paper attempts to answer five questions: (1) Why should parents be involved in the formal education of their children? (2) Why should…

  6. Parental Involvement and Academic Achievement

    Science.gov (United States)

    Goodwin, Sarah Christine

    2015-01-01

    This research study examined the correlation between student achievement and parent's perceptions of their involvement in their child's schooling. Parent participants completed the Parent Involvement Project Parent Questionnaire. Results slightly indicated parents of students with higher level of achievement perceived less demand or invitations…

  7. Involvement of inositol in reproduction.

    NARCIS (Netherlands)

    Beemster, P.; Groenen, P.; Steegers-Theunissen, R.P.M.

    2002-01-01

    Inositol is involved in several aspects of reproduction. It affects overall embryogenesis, may prevent neural tube defects, and stimulates the production of lung surfactant. This article will review the involvement of inositol in reproduction. After describing the biologic function of inositol and i

  8. Direct Employee Involvement Quality (DEIQ)

    NARCIS (Netherlands)

    Torka, Nicole; Woerkom, van Marianne; Looise, Jan-Kees

    2008-01-01

    This paper focuses on one aspect of human resource management (HRM) that is important for innovative employee behaviour: direct employee involvement quality (DEIQ). However, research has also shown that employee involvement is often in serious need of improvement. This paper presents evidence from t

  9. Parental Involvement and Academic Achievement

    Science.gov (United States)

    Goodwin, Sarah Christine

    2015-01-01

    This research study examined the correlation between student achievement and parent's perceptions of their involvement in their child's schooling. Parent participants completed the Parent Involvement Project Parent Questionnaire. Results slightly indicated parents of students with higher level of achievement perceived less demand or invitations…

  10. Ocular involvement in pemphigus vulgaris.

    Science.gov (United States)

    Akhyani, Maryam; Keshtkar-Jafari, Alireza; Chams-Davatchi, Cheyda; Lajevardi, Vahide; Beigi, Sara; Aghazadeh, Nessa; Rayati Damavandi, Maede; Arami, Shabnam

    2014-07-01

    Pemphigus vulgaris (PV) is an autoimmune disorder affecting the skin and mucous membranes. Ocular involvement in PV has been reported but its prevalence and clinical characteristics are not well defined. This prospective cross-sectional study of 103 PV patients was designed to determine the prevalence, clinical types and epidemiological trends of ocular involvement in a population of Iranian patients with PV. Ocular involvement was present in 17 (16.5%) patients. Conjunctivitis was the most prevalent type of ocular involvement (9/17, 52.9%), followed by erosion of the palpebral conjunctiva (7/17, 41.2%). Erosion of the bulbar conjunctiva was noted in only one patient (5.9%). The most commonly reported symptoms were eye irritation (76.5%) and redness (76.5%). No significant relation was found between ocular involvement and disease activity (partial remission or relapse). Mucoid discharge was significantly more common in patients with conjunctival erosions as compared to patients with conjunctivitis (P = 0.038). We conclude that ocular involvement is not rare in PV; 16.5% of PV patients develop ocular disease independent of the disease activity and extension. Conjunctivitis is the most common type of involvement, however, palpebral conjunctival erosion is more frequent than previously realized.

  11. Road rage and collision involvement.

    Science.gov (United States)

    Mann, Robert E; Zhao, Jinhui; Stoduto, Gina; Adlaf, Edward M; Smart, Reginald G; Donovan, John E

    2007-01-01

    To assess the contribution of road rage victimization and perpetration to collision involvement. The relationship between self-reported collision involvement and road rage victimization and perpetration was examined, based on telephone interviews with a representative sample of 4897 Ontario adult drivers interviewed between 2002 and 2004. Perpetrators and victims of both any road rage and serious road rage had a significantly higher risk of collision involvement than did those without road rage experience. This study provides epidemiological evidence that both victims and perpetrators of road rage experience increased collision risk. More detailed studies of the contribution of road rage to traffic crashes are needed.

  12. GOVERNMENT INVOLVEMENT IN CONSUMPTION BEHAVIOUR

    Directory of Open Access Journals (Sweden)

    CRISTINA ZAMFIR

    2010-01-01

    Full Text Available In this article, we will follow the involvement that the government has,through its expenses, on the consumption behavior. The involvement that the government has inthe consumption behavior is made through fees and taxes that are applied on income. Fees andtaxes are applied to the different forms of income but in this article we will be focused only onthe influence of them on wages. In order to analyze the involvement of government expenses onconsumption behavior an utility model will be used.

  13. [Hand involvement in systemic sclerosis].

    Science.gov (United States)

    Mouthon, Luc

    2013-12-01

    Hand involvement is very common in patients with systemic sclerosis and represents an important tool for the early diagnosis of the disease. Vascular involvement of the hands is at the forefront of systemic sclerosis, with Raynaud's phenomenon, which may be complicated by digital ulcers, digital necrosis causing pain, infection and significant disability. Joint inflammation can also be disabling and causes the occurrence of contractures and deformities resulting in a marked hand disability. Skin sclerosis involving fingers and hands leads to the occurrence of pain and functional impairment. Hand involvement contributes to 75 % of global disability in patients with systemic sclerosis. Only a comprehensive care, taking into account the vascular, skin and joint manifestations, including physical therapy if needed can improve hand function in patients with systemic sclerosis.

  14. Abdominal Actinomycetoma With Lymphnode Involvement

    Directory of Open Access Journals (Sweden)

    Damisetty Rajetha

    2004-01-01

    Full Text Available Actinomycotic mycetoma of the anterior abdominal wall with inguinal lymphnode involvement, an exceedingly rare entity is described here with mycological histological features. Remarkable therapeutic response was noted with Welsh regimen.

  15. User Involvement And Entrepreneurial Action

    Directory of Open Access Journals (Sweden)

    Eva Heiskanen

    2007-01-01

    Full Text Available Involving users in the innovation process is a subject of much research, experimentation, and debate. Less attention has been given to the limits to user involvement that ensue from specific organizational characteristics. This article explores barriers to the utilization of users’ input in two small companies developing interactive digital applications. We contrast our findings to earlier research involving large companies to identify features of entrepreneurial sensemaking and action that influence the utilization of users’ input. We find that the small companies follow a distinct action rationality, leading to rapid implementation of some user inputs, and defensiveness toward others. Both sets of data also reveal common features that are often overlooked in the literature. We reconceptualize user involvement as a form of interaction between users and innovating companies that is facilitated and constrained by micro-sociological processes, on the one hand, and the nature of the competitive environment, on the other.

  16. Patient involvement in hospital architecture

    DEFF Research Database (Denmark)

    Herriott, Richard

    2017-01-01

    This paper examines user-involvement in the process used to design new hospitals. Denmark is in the midst of a phase of hospital building. This recent experience is studied by means of expert interviews with senior practitioners involved in three projects. Examined thematically, the data covers......-studied area, design for hospitals. It highlights difficulties in applying the goals of user-centred design and Design for All in large projects....

  17. User involvement in care work

    DEFF Research Database (Denmark)

    Dybbroe, Betina; Kamp, Annette

    effectiveness and shared responsibility for care pathways. While NPM position users as consumers making their free choice, the user involvement paradigm underlines the users’ active participation in the mastering of their problems and disease. Research is scarce on this theme, and has until now primarily......In recent years user involvement has become a paradigm for transforming the health and social care sector. This development–also labelled empowerment, co-creation, partnership, patient-centeredness - is seen as a means to reform organizations in ways that enhance quality, economic cost...... addressed the way this paradigm affects the users, in specific sectors. However user involvement also affects working life. It may imply change and redistribution of tasks and identities between users and professionals, and may also transform the relations of care. In this paper we explore the possible...

  18. Strategy Innovation with Employee Involvement

    DEFF Research Database (Denmark)

    Friis, Ole Uhrskov; Koch, Christian

    2015-01-01

    if the managers still dominate, some processes of direct involvement of employees occur, in particular when employees are asked to supplement overall strategic goals and when they directly shape several sub-strategies. Strategy practices found include strategy planning, an open space workshop and organised......The purpose of this article is to investigate how employees can be involved in strategy innovation processes and how new strategy practices (new tools and procedures) are used to change strategy praxis in order to sustain value creation. In the strategizing actions, we found that even...... strategy projects. Especially the latter two are important in facilitating the employee involvement. The case, however, also exhibits enterprise-situated praxises related to unplanned events, like the mitigation of taboos....

  19. Involving Employees in Strategy innovation

    DEFF Research Database (Denmark)

    Friis, Ole Uhrskov; Koch, Christian

    2011-01-01

    some of its employees. Even if managers still dominate, some processes of direct involvement of employees occur. The employees are in particular active in supplementing overall strategic goals and directly shaping one sub strategy, that of ‘process’. Strategy practices include planning, Porterian......Strategy as a practice and continuous innovation approaches are combined to conceptualise dilemmas of short versus long term and to analyse a case of employee participation as a particular example of strategy innovation. The case is a medium size textile company developing its strategy involving...... and Balanced Score Card consultancy, an ‘open space’ workshop and organized strategy projects. Especially the latter two are important in facilitating the employee involvement. The case however also exhibit enterprise situated praxis’s like mitigation of taboos....

  20. Gastrointestinal involvement in systemic sclerosis.

    Science.gov (United States)

    Savarino, Edoardo; Furnari, Manuele; de Bortoli, Nicola; Martinucci, Irene; Bodini, Giorgia; Ghio, Massimo; Savarino, Vincenzo

    2014-10-01

    Systemic sclerosis is an autoimmune chronic disease characterised by microvascular, muscular and immunologic abnormalities that lead to progressive and systemic deposition of connective tissue in the skin and internal organs. The gastrointestinal tract is often overlooked by physicians but it is the most affected organ after the skin, from the mouth to the anus. Indeed, 80% of SSc patients may present with gastrointestinal involvement. Gastrointestinal manifestations range from bloating and heartburn to dysphagia and anorectal dysfunction to severe weight loss and malabsorption. However, the gastrointestinal involvement is rarely the direct cause of death, but has great impact on quality of life and leads to several comorbidities that subsequently affect patients' survival. Treatments, including nutritional support and prokinetics provide limited benefits and do not arrest the progressive course of the disease, but earlier detection of gastrointestinal involvement may reduce the risk of complications such as malnutrition.

  1. [Heel involvement in rheumatoid polyarthritis].

    Science.gov (United States)

    Bouysset, M; Tebib, J G; Vianey, J C; Berthier, M; Nemoz, J C; Chaumentin, G; Schnepp, J; Llorca, G; Bouvier, M

    1990-11-01

    Calcaneus involvement during the course of RA is poorly known. A clinical and radiological study of 408 consecutive rheumatoid feet are then reported. If talalgia was seldomly noted (3.7 p. cent), plantar calcaneitis was found in 29.7 p. cent as plantar spur. Similarly, posterior exostosis was displayed in 30.5 p. cent of patients. These radiological abnormalities are increased in RA but appeared more as a consequence of the statical modification of the foot secondary to RA process than as a direct involvement. Logical orthopedic therapeutics are then proposed.

  2. Multisystem involvement in neuromyelitis optica

    Directory of Open Access Journals (Sweden)

    Megan M Langille

    2015-01-01

    Full Text Available We describe a case of pediatric neuromyelitis optica (NMO with muscle and lung involvement in addition to central nervous system disease. Our patient initially presented with features of area postrema syndrome, then subsequently with optic neuritis. The patient also had recurrent hyperCKemia that responded to corticosteroids. Finally, axillary and hilar adenopathy with pulmonary consolidation were noted as well and responded to immunomodulation. Our case highlights multisystem involvement in NMO including non-infectious pulmonary findings which have not been described in the pediatric population previously.

  3. Vertebral osteomyelitis without disc involvement

    Energy Technology Data Exchange (ETDEWEB)

    Kamani, I.; Syed, I.; Saifuddin, A. E-mail: asaifuddin@aol.com; Green, R.; MacSweeney, F

    2004-10-01

    Vertebral osteomyelitis is most commonly due to pyogenic or granulomatous infection and typically results in the combined involvement of the intervertebral disc and adjacent vertebral bodies. Non-infective causes include the related conditions of chronic recurrent multifocal osteomyelitis (CRMO) and SAPHO (synovitis, acne, pustulosis, hyperostosis, and osteitis) syndrome. Occasionally, these conditions may present purely within the vertebral body, resulting in various combinations of vertebral marrow oedema and sclerosis, destructive lesions of the vertebral body and pathological vertebral collapse, thus mimicking neoplastic disease. This review illustrates the imaging features of vertebral osteomyelitis without disc involvement, with emphasis on magnetic resonance imaging (MRI) findings.

  4. Parental Involvement in Norwegian Schools

    Science.gov (United States)

    Paulsen, Jan Merok

    2012-01-01

    This article examines findings on key challenges of school-parent relations in Norway. The review is based on recent large-scale studies on several issues, including formalized school-parent cooperation, parental involvement in the pedagogical discourse, and teacher perspectives on the parents' role in the school community. Findings suggest a…

  5. Parent Involvement as Ritualized Practice

    Science.gov (United States)

    Doucet, Fabienne

    2011-01-01

    This article examines parent involvement (PI) as a ritual system using Turner's concept of root paradigms. Through a twofold analysis, I argue that the highly ritualized nature of PI practices creates a group identity among mainstream parents and schools that marginalizes diverse families. First, I point out three root paradigms in the ritual…

  6. Putaminal involvement in Rasmussen encephalitis

    Energy Technology Data Exchange (ETDEWEB)

    Rajesh, Bhagavatheeswaran; Ashalatha, Radhakrishnan [Sree Chitra Tirunal Institute for Medical Sciences and Technology, Department of Neurology, Trivandrum, Kerala (India); Kesavadas, Chandrasekharan; Thomas, Bejoy [Sree Chitra Tirunal Institute for Medical Sciences and Technology, Department of Imaging Sciences and Interventional Radiology, Trivandrum, Kerala (India)

    2006-08-15

    Rasmussen encephalitis (RE) is a rare devastating disease of childhood causing progressive neurological deficits and intractable seizures, typically affecting one hemisphere. Characteristic MRI features include progressive unihemispheric focal cortical atrophy and grey- or white-matter high-signal changes and basal ganglion involvement, particularly of the caudate nucleus. To analyse the pattern of involvement of different brain structures in a series of patients with RE and to attempt clinical correlation. We reviewed the medical records and neuroimaging data of 12 patients diagnosed with RE satisfying the European Consensus Statement diagnostic criteria. The disease manifested as seizures in all patients and was refractory; epilepsia partialis continua was a notable feature (nine patients). Hemiparesis of varying grades was noted in all but one patient; none had extrapyramidal signs. Neuroimaging showed cortical involvement in the insular/periinsular regions in 11 patients. Caudate atrophy was noted in ten patients. Putaminal atrophy was seen in nine patients, six of whom had additional hyperintense signal changes. Our study highlights frequent putaminal atrophy and signal changes in RE, which suggests a more extensive basal ganglion involvement than emphasized previously. Recognition of putaminal changes may be a useful additional tool in the radiological diagnosis of RE. (orig.)

  7. Neuronal involvement in cisplatin neuropathy

    DEFF Research Database (Denmark)

    Krarup-Hansen, A; Helweg-Larsen, Susanne Elisabeth; Schmalbruch, H

    2007-01-01

    Although it is well known that cisplatin causes a sensory neuropathy, the primary site of involvement is not established. The clinical symptoms localized in a stocking-glove distribution may be explained by a length dependent neuronopathy or by a distal axonopathy. To study whether the whole neur...

  8. Promoting Active Involvement in Classrooms

    Science.gov (United States)

    Conderman, Greg; Bresnahan, Val; Hedin, Laura

    2012-01-01

    This article presents a rationale for using active involvement techniques, describes large- and small-group methods based on their documented effectiveness and applicability to K-12 classrooms, and illustrates their use. These approaches include ways of engaging students in large groups (e.g., unison responses, response cards, dry-erase boards,…

  9. Involving Employees in Strategy innovation

    DEFF Research Database (Denmark)

    Friis, Ole Uhrskov; Koch, Christian

    2011-01-01

    Strategy as a practice and continuous innovation approaches are combined to conceptualise dilemmas of short versus long term and to analyse a case of employee participation as a particular example of strategy innovation. The case is a medium size textile company developing its strategy involving...

  10. Managing Parent Involvement during Crisis

    Science.gov (United States)

    Merriman, Lynette S.

    2008-01-01

    In the wake of 9/11, Hurricane Katrina, and the Virginia Tech shooting tragedy, it is no surprise that concern for students' safety is the primary reason attributed to parents' increased involvement. Parents and university administrators share in their commitment to student safety. However, college and university staff who assume responsibility…

  11. Design for Mass User Involvement

    DEFF Research Database (Denmark)

    Vianello, Giovanna; Tan, Adrian

    as it creates a closer relationship to customers as well as creating the best possibilities for reducing impact of products on our natural environment. This new way of organizing the development process in collaboration with users holds many opportunities, but also challenges for companies and researchers. We...... be broadly adopted by the masses of people in the next century. Design methods are powerful tools to create solutions that fulfill the needs of people and improve their lives. Based on emerging trends in design and development as well as projecting current trends in the world today, we propose a new design...... formalism for the future in 2030 that is suited for a high tech, global manufacturing company. The design formalism involves the user throughout the design process and involves the company in the entire lifecycle of its products. It is believed that this approach will give companies a competitive advantage...

  12. Inclusive Briefing and User Involvement

    DEFF Research Database (Denmark)

    Jensen, Per Anker

    2011-01-01

    includes a literature study on briefing and user involvement in building projects, and presents a case study of a major building project of a new headquarters and media centre for the Danish Broadcasting Corporation in Copenhagen. The building project was actively used as part of a corporate change process......Briefing is not just about specifying needs as requirements but also about evaluating how well design proposals fulfil needs and aspirations. Furthermore, briefing is not only about building design. Briefing starts at the preproject stage to create a basis for the project decision and can include...... a number of different processes with varying purposes before and during the design and construction activities. Thus, briefing can be regarded as a continuous process but it should also be an inclusive and interactive process with the involvement of all stakeholders, including end users. This article...

  13. Inclusive Briefing and User Involvement

    DEFF Research Database (Denmark)

    Jensen, Per Anker

    2011-01-01

    Briefing is not just about specifying needs as requirements but also about evaluating how well design proposals fulfil needs and aspirations. Furthermore, briefing is not only about building design. Briefing starts at the preproject stage to create a basis for the project decision and can include...... a number of different processes with varying purposes before and during the design and construction activities. Thus, briefing can be regarded as a continuous process but it should also be an inclusive and interactive process with the involvement of all stakeholders, including end users. This article...... includes a literature study on briefing and user involvement in building projects, and presents a case study of a major building project of a new headquarters and media centre for the Danish Broadcasting Corporation in Copenhagen. The building project was actively used as part of a corporate change process...

  14. Renal involvement in antiphospholipid syndrome.

    Science.gov (United States)

    Pons-Estel, Guillermo J; Cervera, Ricard

    2014-02-01

    Renal involvement can be a serious problem for patients with antiphospholipid syndrome (APS). However, this complication has been poorly recognized and studied. It can be present in patients who have either primary or systemic lupus erythematosus-associated APS. Clinical and laboratory features of renal involvement in APS include hypertension, hematuria, acute renal failure, and progressive chronic renal insufficiency with mild levels of proteinuria that can progress to nephrotic-range proteinuria. The main lesions are renal artery stenosis, venous renal thrombosis, and glomerular lesions (APS nephropathy) that may be acute (thrombotic microangiopathy) and/or chronic (arteriosclerosis, arterial fibrous intimal hyperplasia, tubular thyroidization, arteriolar occlusions, and focal cortical atrophy). APS can also cause end-stage renal disease and allograft vascular thrombosis. This article reviews the range of renal abnormalities associated with APS, and their diagnosis and treatment options.

  15. Liver involvement in systemic infection

    Institute of Scientific and Technical Information of China (English)

    Masami; Minemura; Kazuto; Tajiri; Yukihiro; Shimizu

    2014-01-01

    The liver is often involved in systemic infections,resulting in various types of abnormal liver function test results.In particular,hyperbilirubinemia in the range of 2-10 mg/dL is often seen in patients with sepsis,and several mechanisms for this phenomenon have been proposed.In this review,we summarize how the liver is involved in various systemic infections that are not considered to be primarily hepatotropic.In most patients with systemic infections,treatment for the invading microbes is enough to normalize the liver function tests.However,some patients may show severe liver injury or fulminant hepatic failure,requiring intensive treatment of the liver.

  16. Lupus panniculitis involving the breast

    Energy Technology Data Exchange (ETDEWEB)

    Sabate, Josep M.; Gomez, Antonio; Torrubia, Sofia; Salinas, Teresa; Clotet, Montse [Universitat Autonoma de Barcelona, Unity of Breast Imaging, Department of Diagnostic Radiology, Hospital de Sant Pau, Barcelona (Spain); Lerma, Enrique [Universitat Autonoma de Barcelona, Department of Pathology, Hospital de Sant Pau, Barcelona (Spain)

    2006-01-01

    Lupus panniculitis is an unusual immunological disease that characteristically affects the subcutaneous fat and occurs in 2% of patients with systemic lupus erythematosus. We report a case of lupus panniculitis involving the breast, which represents a very uncommon location. Mammographically, it presented as a suspicious irregular mass involving the subcutaneous fat pad with skin thickening. High echogenicity constituted the most relevant sonographic finding. To the best of our knowledge, the magnetic resonance (MR) features have not been previously described. High signal intensity was found on both T1- and T2-weighted precontrast MR images. A dynamic contrast-enhanced study revealed a suspicious focal mass with irregular margins and rim enhancement, with a type 3 time-signal intensity curve. Differential diagnosis with carcinoma and fat necrosis and the value of core biopsy are discussed. (orig.)

  17. Cardiac involvement in rheumatoid arthritis

    Directory of Open Access Journals (Sweden)

    V. De Gennaro Colonna

    2011-06-01

    Full Text Available Rheumatoid arthritis (RA is a systemic disease of unknown etiology characterized by a chronic inflammatory process mainly leading to destruction of synovial membrane of small and major diarthrodial joints. The prevalence of RA within the general adult population is about 1% and female subjects in fertile age result mostly involved. It’s an invalidating disease, associated with changes in life quality and a reduced life expectancy. Moreover, we can observe an increased mortality rate in this population early after the onset of the disease. The mortality excess can be partially due to infective, gastrointestinal, renal or pulmonary complications and malignancy (mainly lung cancer and non- Hodgkin lymphoma. Among extra-articular complications, cardiovascular (CV involvement represents one of the leading causes of morbidity and mortality. Every cardiac structure can be affected by different pathogenic pathways: heart valves, conduction system, myocardium, endocardium, pericardium and coronary arteries. Consequently, different clinical manifestations can be detected, including: pericarditis, myocarditis, myocardial fibrosis, arrhythmias, alterations of conduction system, coronaropathies and ischemic cardiopathy, valvular disease, pulmonary hypertension and heart failure. Considering that early cardiac involvement negatively affects the prognosis, it is mandatory to identify high CV risk RA patients to better define long-term management of this population.

  18. Laryngeal Involvement of Multiple Myeloma

    Directory of Open Access Journals (Sweden)

    Ariel B. Grobman

    2012-01-01

    Full Text Available The objectives of this paper are to discuss a rare cause of laryngeal multiple myeloma, to review unique pathologic findings associated with plasma cell neoplasms, to discuss epidemiology, differential diagnosis, and treatment options for plasma cell neoplasms of the larynx. Laryngeal multiple myeloma, also noted in the literature as “metastatic” multiple myeloma, presenting as a de novo laryngeal mass is extremely rare with few reported cases. Laryngeal involvement of extramedullary tumors is reported to be between 6% and 18% with the epiglottis, glottis, false vocal folds, aryepiglottic folds, and subglottis involved in decreasing the order of frequency. We present the case of a 58-year-old male with a history of IgA smoldering myeloma who presented to a tertiary care laryngological practice with a two-month history of dysphonia, which was found to be laryngeal involvement of multiple myeloma. We review the classification of and differentiation between different plasma cell neoplasms, disease workups, pathologic findings, and treatment options.

  19. DHA involvement in neurotransmission process

    Directory of Open Access Journals (Sweden)

    Vancassel Sylvie

    2007-05-01

    Full Text Available The very high enrichment of the nervous system in the polyunsaturated fatty acids, arachidonic (AA, 20: 4n-6 and docosahexaenoic acids (DHA, 22: 6n-3, is dependant of the dietary availability of their respective precursors, linoleic (18: 2n-6 and_-linolenic acids (18: 3n-3. Inadequate amounts of DHA in brain membranes have been linked to a wide variety of abnormalities ranging from visual acuity and learning irregularities, to psychopathologies. However, the molecular mechanisms involved remain unknown. Several years ago, we hypothesized that a modification of DHA contents of neuronal membranes by dietary modulation could change the neurotransmission function and then underlie inappropriate behavioural response. We showed that, in parallel to a severe loss of brain DHA concomitant to a compensatory substitution by 22:5n-6, the dietary lack of α-linolenic acid during development induced important changes in the release of neurotransmitters (dopamine, serotonin, acetylcholine in cerebral areas specifically involved in learning, memory and reward processes. Data suggested alteration of presynaptic storage process and dysregulations of reciprocal functional interactions between monoaminergic and cholinergic pathways. Moreover, we showed that recovery of these neurochemical changes was possible when the deficient diet was switched to a diet balanced in n-3 and n-6 PUFA before weaning. The next step is to understand the mechanism involved. Particularly, we focus on the study of the metabolic cooperation between the endothelial cell, the astrocyte and the neuron which regulate synaptic transmission.These works could contribute to the understanding of the link between some neuropsychiatric disorders and the metabolism of n-3 PUFA, through their action on neurotransmission.

  20. Neuronal involvement in cisplatin neuropathy

    DEFF Research Database (Denmark)

    Krarup-Hansen, A; Helweg-Larsen, Susanne Elisabeth; Schmalbruch, H

    2007-01-01

    Although it is well known that cisplatin causes a sensory neuropathy, the primary site of involvement is not established. The clinical symptoms localized in a stocking-glove distribution may be explained by a length dependent neuronopathy or by a distal axonopathy. To study whether the whole neuron...... of large dorsal root ganglion cells. Motor conduction studies, autonomic function and warm and cold temperature sensation remained unchanged at all doses of cisplatin treatment. The results of these studies are consistent with degeneration of large sensory neurons whereas there was no evidence of distal...

  1. Modeling interdisciplinary activities involving Mathematics

    DEFF Research Database (Denmark)

    Iversen, Steffen Møllegaard

    2006-01-01

    In this paper a didactical model is presented. The goal of the model is to work as a didactical tool, or conceptual frame, for developing, carrying through and evaluating interdisciplinary activities involving the subject of mathematics and philosophy in the high schools. Through the terms...... domains (Michelsen, 2001, 2005a, 2005b). Furthermore the theoretical description rest on a series of qualitative interviews with teachers from the Danish high school (grades 9-11) conducted recently. The special case of concrete interdisciplinary activities between mathematics and philosophy is also...

  2. Renal involvement in antiphospholipid syndrome.

    Science.gov (United States)

    Sciascia, Savino; Cuadrado, Maria José; Khamashta, Munther; Roccatello, Dario

    2014-05-01

    Antiphospholipid syndrome (APS) is an autoimmune disease defined by the presence of arterial or venous thrombotic events and/or pregnancy morbidity in patients who test positive for antiphospholipid antibodies (aPLs). APS can be isolated (known as primary APS) or associated with other autoimmune diseases, such as systemic lupus erythematosus (SLE; known as secondary APS). The kidney is a major target organ in APS and renal thrombosis can occur at any level within the vasculature of the kidney (renal arteries, intrarenal arteries, glomerular capillaries and renal veins); events reflect the site and size of the involved vessels. Histological findings vary widely, including ischaemic glomeruli and thrombotic lesions without glomerular or arterial immune deposits on immunofluorescence. Renal prognosis is affected by the presence of aPLs in patients with lupus nephritis and can be poor. In patients with SLE and aPLs, biopsy should be performed because inflammatory and thrombotic lesions require different therapeutic approaches. Renal involvement in patients with definite APS is treated by anticoagulation with long-term warfarin. The range of renal manifestations associated with APS is broadening and, therefore, aPLs have increasing relevance in end-stage renal disease, transplantation and pregnancy.

  3. Subfascial involvement in glomuvenous malformation

    Energy Technology Data Exchange (ETDEWEB)

    Shaikh, Raja; Alomari, Ahmad I.; Chaudry, Gulraiz [Boston Children' s Hospital, Division of Interventional Radiology, Boston, MA (United States); Mulliken, John B. [Boston Children' s Hospital, Division of Plastic Surgery, Boston, MA (United States); Fishman, Steven J. [Boston Children' s Hospital, Department of Surgery, Boston, MA (United States); Kozakewich, Harry P.W. [Boston Children' s Hospital, Department of Pathology, Boston, MA (United States)

    2014-07-15

    Glomuvenous malformation (GVM) is an inherited autosomal dominant trait. The lesions, which appear as bluish nodules or plaque-like cutaneous elevations, are usually tender and more firm than sporadic venous malformations. Conventionally, the lesions are thought to be limited to the cutaneous and subcutaneous tissue planes. The objective was to characterize the depth of involvement of GVM lesions. Magnetic resonance imaging (MRI) findings in GVM were retrospectively evaluated by two radiologists. The signal characteristics, tissue distribution, pattern of contrast enhancement of the lesions in GVM were documented. Thirty patients (19 female) aged 1-35 years (mean 18 years) were diagnosed with GVM based on clinical features (n = 20) and/or histopathological findings (n = 10). The lesions were present in the lower extremity (n = 15), upper extremity (n = 6), cervico-facial region (n = 6), pelvis (n = 2), and chest wall (n = 1). All patients had skin and subcutaneous lesions. Fifty percent of the patients (n = 15) demonstrated subfascial intramuscular (n = 15), intra-osseous (n = 1), and intra-articular involvement (n = 1). Contrary to the conventional belief that GVMs are generally limited to the skin and subcutaneous tissue, deep subfascial extension of the lesions is common. (orig.)

  4. In pursuit of empowerment: Sensei Nellie Kleinsmidt, race and gender challenges in South Africa.

    Science.gov (United States)

    Jones, D E

    2001-01-01

    This chapter traces the way in which Nellie Kleinsmidt, known as the grandmother of karate in Africa, has negotiated discriminatory practices and overcome race and gender-related struggles, including the struggle to free the female body, in pursuit of empowerment. It explores her expectations and the constraints and frustrations she experienced, as well as the many contributions she has made to women's karate in South Africa. Nellie Kleinsmidt's karate career, which began in 1965, coincided with the early developments of South African karate. As a woman of colour her life and karate career were significantly shaped by apartheid legislation. It divided the country into areas of occupancy and residency according to race and was designed to prevent contact between the people of the government defined race groups. Black karate-kas were prohibited by law from practising karate in white designated areas. Lack of facilities and qualified instructors in areas allocated to Kleinsmidt's race group meant that she received very little formal karate instruction between 1966 and 1973. Soon after, she met Johan Roux, a white male. He was to become her chief karate instructor and life-long companion. They defied the apartheid legislation and in 1978 set up home together. They organized defiance campaigns, resisting the pressures from government to close their dojo because of its non-racial policies. Freeing her body at the broader political level involved the abolition of the race categories and all other apartheid legislation which impacted on her life choices and experiences. Initially this struggle and that of freeing her body occurred simultaneously. In her ongoing struggle against gender discrimination in the sport, it was in karate that Nellie Kleinsmidt could strive for the personal empowerment she sought. She could however not translate this into freedom in South African society itself. The impact of apartheid legislation together with the imposition of a sports moratorium

  5. Cutaneous Plasmacytosis with Perineural Involvement

    Directory of Open Access Journals (Sweden)

    Elizabeth A. Brezinski

    2014-01-01

    Full Text Available Importance. Cutaneous and systemic plasmacytosis are rare conditions of unknown etiology with characteristic red-brown skin lesions and a mature polyclonal plasma cell infiltrate within the dermis. Perineural plasma cell infiltrates may be a histologic clue to the diagnosis of cutaneous plasmacytosis. Observations. Our patient had a five-year history of persistent reddish-brown plaques on the neck and trunk without systemic symptoms. Histologic examination showed dermal perivascular and perineural plasma cells with excess lambda light chain expression. Due to decreased quality of life caused by his skin lesions, he was placed on a chemotherapeutic regimen with bortezomib. Conclusions and Relevance. The patient was diagnosed with cutaneous plasmacytosis based on classic histopathology results with a recently characterized pattern of perineural involvement. Bortezomib therapy was initiated to manage his skin eruption, which has not been previously described as a treatment for this chronic condition.

  6. Modeling interdisciplinary activities involving Mathematics

    DEFF Research Database (Denmark)

    Iversen, Steffen Møllegaard

    2006-01-01

    In this paper a didactical model is presented. The goal of the model is to work as a didactical tool, or conceptual frame, for developing, carrying through and evaluating interdisciplinary activities involving the subject of mathematics and philosophy in the high schools. Through the terms...... of Horizontal Intertwining, Vertical Structuring and Horizontal Propagation the model consists of three phases, each considering different aspects of the nature of interdisciplinary activities. The theoretical modelling is inspired by work which focuses on the students abilities to concept formation in expanded...... domains (Michelsen, 2001, 2005a, 2005b). Furthermore the theoretical description rest on a series of qualitative interviews with teachers from the Danish high school (grades 9-11) conducted recently. The special case of concrete interdisciplinary activities between mathematics and philosophy is also...

  7. CHANGE AT CERN - BE INVOLVED

    CERN Multimedia

    2002-01-01

    The encouragement of individual members of staff to contribute to the work of the task forces by making suggestions via the form on the Users'page of the web has been successful. Therefore, as announced by the Director General in his talk to the Staff in April, the management would like staff to continue to be involved in the change process by making further suggestions. Suggestions received will be distributed to the Director(s)/Division Leader(s) concerned, for reply and action where appropriate. The Director General has set up a small Panel that will ensure the proper processing of the ideas and will present a regular overview to the Director General. Members of the Panel are: Jan van der Boon, Vincent Hatton, Karl-Heinz Kissler, Thomas Pettersson, Florian Sonnemann, and Horst Wenninger.

  8. Metronidazole neurotoxicity: Sequential neuroaxis involvement

    Directory of Open Access Journals (Sweden)

    Kyung-Il Park

    2011-01-01

    Full Text Available Neurological manifestation of metronidazole toxicity include neuropathy and encephalopathy. We report a 67-year-old man with progressive painful paresthesias involving all the four limbs of 3 weeks′ duration before admission. He had been treated with metronidazole and cephalosporin for 10 weeks for a hepatic abscess. Five weeks after the symptom onset, he complained of dysarthria and limb ataxia. Magnetic resonance imaging revealed signal abnormalities in the splenium of the corpus callosum and bilateral dentate nuclei. A few hours after brain imaging, the patient exhibited excessive diaphoresis and fluctuation in blood pressure, which resolved within several hours after discontinuation of metronidazole. Whereas his speech returned to near normal within approximately 1 week, a burning sensation was not completely relieved, even 6 months after discharge.

  9. Charmless B decays involving baryons

    Science.gov (United States)

    Gronau, Michael; Rosner, Jonathan L.

    1988-02-01

    Predictions are made for the fraction of B-meson decays involving specific final states of NN¯+nπ (n>=0), as functions of (a) decay dynamics, (b) models for multipion production, (c) the isospin of the final state, and (d) the ratio ||Vbu/Vbc|| of Kobayashi-Maskawa matrix elements. From recent observations of B+-->pp¯π+(+c.c.) and B0-->pp¯π+π- by the ARGUS Collaboration, it is concluded that ||Vbu/Vbc||>~0.08, similar to the ARGUS Collaboration's own estimate of 0.07. However, a more likely value for this ratio is near its present experimental upper limit. Predictions are made for further final states in NN¯+nπ and in other charmless B decays. We also comment briefly on prospects for observing CP violation in B-->NN¯+nπ.

  10. Measuring Purchase‐decision involvement ,

    Directory of Open Access Journals (Sweden)

    Naser Azad

    2014-08-01

    Full Text Available Nowadays, increasing competition is forcing businesses to pay more attention on customer satisfaction providing strong customer services. Increased competition has also increased marketing activities. This paper presents an empirical investigation to determine important factors influencing purchase decision involvement in food industry in city of Tehran, Iran. The study designs a questionnaire in Likert scale, distributes it among 270 experts in food industry and, using principle component (PCA analysis, extracts important group of factors. The questionnaire consists of 27 questions, which is reduced to 23 questions because of sensitivity of the PCA to Skewness of data. Cronbach alpha is calculated as 0.81, which is well above the minimum acceptable level. The results indicate that there were four factors including individual differences, product validation, triggers and dependent behavior influencing purchasing decisions.

  11. Kidney involvement in rheumatoid arthritis

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    P. Lazzarini

    2011-09-01

    Full Text Available Rheumatoid Arthritis (RA is a widespread disease and its renal involvement, relatively common, is clinically significant because worsens course and mortality of the primary disease. There is still no agreement on the prevalence of renal disorders in RA: data analysis originates from different sources, as death certificates, autopsies, clinical and laboratory findings and kidney biopsies, each with its limitations. Histoimmunological studies on bioptical specimens of patients with RA and kidney damage, led to clarify prevalent pathologies. In order of frequency: glomerulonephritis and amyloidosis (60-65% and 20-30% respectively, followed by acute or chronic interstitial nephritis. Kidney injury during RA includes secondary renal amyloidosis, nephrotoxic effects of antirheumatic drugs and nephropathies as extra-articular manifestations (rheumatoid nephropathy. Amyloidosis affects survival, increases morbidity and is the main cause of end stage renal disease in patients with RA and nephropathy. Strong association between RA activity and amyloidosis needs the use of immunosuppressive and combined therapies, to prevent this complication and reduce risk of dialysis. Long-lasting and combined RA pharmacotherapy involves various renal side effects. In this review we describe NSAIDs and DMARDs (Disease-Modifying Antirheumatic Drugs nephrotoxicity, particularly by gold compounds, D-penicillamine, cyclosporine A and methotrexate. Rare cases of IgA glomerulonephritis during immunomodulating therapy with leflunomide and TNF blocking receptor (etanercept are reported; real clinical significance of this drug-related nephropathy will be established by development of RA treatment. In RA nephropathies, mesangial glomerulonephritis is the most frequent histological lesion (35-60 % out of biopsies from patients with urinary abnormalities and/or kidney impairment, followed by minimal change glomerulopathy (3-14% and p-ANCA positive necrotizing crescentic

  12. Drug hypersensitivity reactions involving skin.

    Science.gov (United States)

    Hausmann, Oliver; Schnyder, Benno; Pichler, Werner J

    2010-01-01

    Immune reactions to drugs can cause a variety of diseases involving the skin, liver, kidney, lungs, and other organs. Beside immediate, IgE-mediated reactions of varying degrees (urticaria to anaphylactic shock), many drug hypersensitivity reactions appear delayed, namely hours to days after starting drug treatment, showing a variety of clinical manifestations from solely skin involvement to fulminant systemic diseases which may be fatal. Immunohistochemical and functional studies of drug-specific T cells in patients with delayed reactions confirmed a predominant role for T cells in the onset and maintenance of immune-mediated delayed drug hypersensitivity reactions (type IV reactions). In these reactions, drug-specific CD4+ and CD8+ T cells are stimulated by drugs through their T cell receptors (TCR). Drugs can stimulate T cells in two ways: they can act as haptens and bind covalently to larger protein structures (hapten-carrier model), inducing a specific immune response. In addition, they may accidentally bind in a labile, noncovalent way to a particular TCR of the whole TCR repertoire and possibly also major histocompatibility complex (MHC)-molecules - similar to their pharmacologic action. This seems to be sufficient to reactivate certain, probably in vivo preactivated T cells, if an additional interaction of the drug-stimulated TCR with MHC molecules occurs. The mechanism was named pharmacological interaction of a drug with (immune) receptor and thus termed the p-i concept. This new concept may explain the frequent skin symptoms in drug hypersensitivity to oral or parenteral drugs. Furthermore, the various clinical manifestations of T cell-mediated drug hypersensitivity may be explained by distinct T cell functions leading to different clinical phenotypes. These data allowed a subclassification of the delayed hypersensitivity reactions (type IV) into T cell reactions which, by releasing certain cytokines and chemokines, preferentially activate and recruit

  13. Involvement of Acylated Homoserine Lactones (AHLs) of Aeromonas sobria in Spoilage of Refrigerated Turbot (Scophthalmus maximus L.).

    Science.gov (United States)

    Li, Tingting; Cui, Fangchao; Bai, Fengling; Zhao, Guohua; Li, Jianrong

    2016-07-13

    One quorum sensing strain was isolated from spoiled turbot. The species was determined by 16S rRNA gene analysis and classical tests, named Aeromonas sobria AS7. Quorum-sensing (QS) signals (N-acyl homoserine lactones (AHLs)) were detected by report strains and their structures were further determined by GC-MS. The activity changes of AHLs on strain growth stage as well as the influence of different culture conditions on secretion activity of AHLs were studied by the punch method. The result indicated that strain AS7 could induce report strains to produce typical phenotypic response. N-butanoyl-dl-homoserine lactone (C₄-HSL), N-hexanoyl-dl-homoserine lactone (C₆-HSL), N-octanoyl-dl-homoserine lactone (C₈-HSL), N-decanoyl-dl-homoserine lactone (C10-HSL), N-dodecanoyl-dl-homoserine lactone (C12-HSL) could be detected. The activities of AHLs were density-dependent and the max secretion level was at pH 8, sucrose culture, 1% NaCl and 32 h, respectively. The production of siderophore in strain AS7 was regulated by exogenous C₈-HSL, rather than C₆-HSL. Exogenous C₄-HSL and C₈-HSL accelerated the growth rate and population density of AS7 in turbot samples under refrigerated storage. However, according to the total viable counts and total volatile basic nitrogen (TVB-N) values of the fish samples, exogenous C₆-HSL did not cause spoilage of the turbot fillets. In conclusion, our results suggested that QS was involved in the spoilage of refrigerated turbot.

  14. Lymphoblastic lymphoma involving multiple vertebrae.

    Science.gov (United States)

    Li, Da; Xu, Yu-Lun; Wu, Zhen

    2017-09-26

    Acute lymphoblastic lymphoma (ALL) was a malignant hematological disease in childhood but rarely, initially involved epidural compartment in adult. A 20-year-old male presented with progressive osphyalgia for 2 months and left lower motor weakness for 2 weeks with constipation. Physical examination revealed decreased muscle strength and numbness of left lower limb, and abnormal gait. Contrasted MRI showed multiple vertebrae of hypointense T1 signals (C2/C4/C7/T5/T8/T9/T12/L2/L4) and an intraspinal epidural lesion (L2-4). Subtotal resection was achieved. Histopathology suggested malignant B-cell lymphoma with Ki-67 of 90% and positivity of leukocyte common antigen (LCA). A bone marrow biopsy was unequivocally diagnostic of B-cell ALL followed by chemotherapy (Methotrexate) and partial recovery was observed. The present case was the oldest patient with epidural ALL. The radiographic changes in multiple vertebrae suggested metabolic, hematological, or granulomatous disease. The marrow biopsy was necessary if without hypercalcemia and abnormal peripheral blood examination. Accurate pathological diagnosis was essential. Copyright © 2017 Elsevier Inc. All rights reserved.

  15. PULMONARY INVOLVEMENT IN RHEUMATOID ARTHRITIS

    Directory of Open Access Journals (Sweden)

    D. V. Bestaev

    2014-01-01

    Full Text Available Rheumatoid arthritis (RA is an autoimmune disease with erosive and destructive polyarthritis and systemic manifestations. Pulmonary involvement (PI is common in RA. With high-resolution computed tomography, the detection rate of PI in RA is as high as 50%. PI is a direct cause of death in 10–20% of patients with RA. Autoimmune mechanisms play a leading part in the development of PI in RA. Under the hypothesis advanced by M. Selman et al., that impaired alveolocyte regeneration processes after injury rather inflammation underlie the pathogenesis of pulmonary fibrosis. The pathological process is triggered by damaged alveolocytes and characterized by the migration and proliferation of fibroblasts and myofibroblasts, the suppressed apoptosis of the latter, and the enhanced activity of pneumofibrosis-stimulating cytokines. This gives rise to remodeling of the extracellular matrix, including destruction of the basement membrane, angiogenesis, and fibrosis. The paper considers the types of lung injury in RA and main methods for diagnosis and therapy.

  16. Evaluating Parent Involvement. Issue Paper No. 1.

    Science.gov (United States)

    Safran, Daniel

    This paper poses a series of questions to assist programs in deciding what it is about parent involvement that they wish to evaluate. The questions focus on the nature of parent involvement, why parent involvement is needed, and what evaluation of parent involvement should include. A conceptual framework for research on the impact of parent…

  17. Defining Parental Involvement: Perception of School Administrators

    Science.gov (United States)

    Young, Clara Y.; Austin, Sheila M.; Growe, Roslin

    2013-01-01

    There remains a plaguing question of how to get parents involved with their child's education. Many parents and educators have different perceptions of what parental involvement means. Miscommunication between the two groups often exists because of how parental involvement is conceptualized. While educators define parental involvement as…

  18. Pilot programs increase men's involvement.

    Science.gov (United States)

    Finger, W R

    1992-08-01

    The UN Population Fund contends that it is the need for family planning (FP) information and services instead of lack of interest that prevents men from participating more in FP. 3 pilot projects in Pakistan, Zimbabwe, and Colombia have acted on this belief. In geographically isolated Mardan, Pakistan, the all male Urban Community Developing Council (UCDC) started a community education project to involve men in FP. 5 UCDC member form 1 community educator team of which there are 60. The teams visit families in Mardan. In 1988, 1 team reported that some men in the households wanted a women to inform their wives about FP. Eventually UCDC located enough women free to be members on 40 teams. In 4 years, contraceptive prevalence among married couples rose from 9% to 21%. Initially the methods tended to be temporary methods but are now longer lasting methods (IUDs, sterilization, injectables, and even a few vasectomies). Other community groups donate about US$541/month to the project. In 1988, the Zimbabwean National Family Planning Council (ZNFPC) began its national education/male motivation project which included sending messages via popular radio soap opera, discussions, and leaflet distribution. The program reached many rural men since they tend to have radios. In 1 year, more men were taking part in decisions about FP (25-35%). ZNFPC has learned it needs to design 2 campaigns to promote condom use: 1 for single and 1 for married men. PROFAMILIA in Colombia began its 1st male clinic in 1985 in Bogota. By 1992, it had 8 male clinics. The key to its success is attractive clinics, low cost vasectomy, individualized care, wide range of services such as condom distribution and treatment of sexually transmitted diseases, and Saturday hours. Despite the 3 projects' successes, they face many obstacles that need to be addressed.

  19. Cardiovascular involvement in psoriatic arthritis

    Directory of Open Access Journals (Sweden)

    V. De Gennaro Colonna

    2011-11-01

    Full Text Available Psoriasis is a chronic, genetically determined and immunomediated inflammatory skin disease that affects 2-3% of the Caucasian population. A considerable proportion of these patients develop a form of inflammatory arthritis known as psoriatic arthritis (PsA, although the prevalence of this has not been well defined. Patients with PsA have a higher mortality rate than the general population and the risk of mortality is related to disease severity at the time of presentation. Endothelial dysfunction and early atherosclerosis have been found in patients with PsA without any cardiovascular disease (CVD risk factors, and experts believe that CVD is one of the leading causes of death, as it is in patients with rheumatoid arthritis (RA. Various disease-related mechanisms may be involved in the development of premature vascular damage in both cases, including an increased synthesis of proinflammatory mediators (such as cytokines, chemokines and adhesion molecules, autoantibodies against endothelial cell components, perturbations in T-cell subsets, genetic polymorphisms, hyperhomocysteinemia, oxidative stress, abnormal vascular repair, and iatrogenic factors. In a recent study of 22 patients with PsA without any signs of CVD, we found that the plasma concentration of asymmetric dimethylarginine (ADMA levels were significantly high and coronary flow reserve (CFR was significantly reduced. Moreover, there was a significant correlation between CFR and plasma ADMA levels in the PsA group. The significant correlation between the reduced CRF and increased ADMA levels suggests that, like patients with early RA, PsA patients suffer from endothelial dysfunction and impaired coronary microcirculation. Active PsA is a risk factor for CVD, and so PsA patients should be screened for subclinical forms of the disease and its risk factors, and an early treatment approach should be adopted.

  20. Cardiac involvement in myotonic dystrophy

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    Koroush Khalighi

    2015-02-01

    Full Text Available Background: Myotonic dystrophy (DM is an inherited progressive muscle disorder caused by defects in muscle proteins. As the incidence of this condition is low, not many are familiar with the multisystem involvement. At times, cardiac disease may even be the predominant manifestation in the form of arrhythmias, conduction defects, and cardiomyopathies. The progression of the disease can lead to sudden, unpredictable death. Thus, it is important to identify this subgroup and treat accordingly. Objective: To identify patients with DM and assess their risk for sudden cardiac death. Methods: Nine patients previously diagnosed with muscular dystrophy were evaluated by cardiologists for various reasons, from a general follow-up to cardiac arrest. All of them had electrocardiograms (EKG and 2-D echocardiograms, and seven of them had further electrophysiological (EP studies. Results: Of the nine patients with DM, eight had EKG evidence of conduction abnormalities ranging from first-degree heart block to complete heart block. Of the seven who had EP studies, five had inducible ventricular tachycardia requiring immediate cardioversion and implantable cardioverter defibrillator (ICD implant. Two of them underwent permanent pacemaker placement due to complete heart block and infra-Hissian block. The remaining two patients opted for a conservative approach with yearly EKG monitoring. Conclusion: Because one-third of the cardiac deaths in patients with DM are sudden, there is a strong need to identify these patients and intervene in those at high risk. Prophylactic pacemaker placement is recommended even in those with minimal conduction system abnormality. However, the common practice is to identify patients at high risk of conduction abnormalities by EP studies and then provide them with prophylactic invasive strategies.