scholarly journals Injury Prevention for Javelin Athletes using Sensors and IoT

2019 ◽  
Vol 8 (12) ◽  
pp. 2417-2421
Keyword(s):  
High Speed ◽  
Injury Risk ◽  
Main Idea ◽  
Feedback Mechanism ◽  
Mobile App ◽  
Long Distance ◽  
Joint Power ◽  
Run Up ◽  
Movement Parameters ◽  
Javelin Throwers

The main idea of this dissertation was to understand the inter-relationships among Biomechanical parameters which describes for javelin throwing execution and wounds continued by javelin throwers. One of the multi-joint, complex track and field throwing events is javelin throw, which needs great coordination on physiological and movement parameters. Current Javelin throwers mainly concentrate on muscular strength and the control to throw the javelin at long distance with high speed. But, it is essential for both men and women javelin throwers to effectively transfer run-up momentum and throwing arm action into great release speed and to control the release. A Great joint power was seen in spear hurlers were related with developments of the shoulder and elbow which is the system for lance tossing damage. These parameters may be modified to decrease injury risk without affecting the performance to achieve maximum throwing distance. Now a day technological advancements are increasing at a faster face, but the utilization of technologies in various sectors is very low. Considering the possible injuries to could occur, this system has been proposed for the welfare of javelin throwers. This indicates whenever the athletes commit a mistake while throwing the javelin which in-turn prevents further injuries through feedback mechanism using the sensor, IoT and Mobile App. The real-time monitoring of injury parameter and providing feedbacks become tremendous potentials for maximizing athlete’s performances

High-Speed, Long-Distance Electric Traction

1905 ◽  
Vol 59 (1537supp) ◽  
pp. 24627-24628
Author(s):  
Charles A. Mudge
Keyword(s):  
High Speed ◽  
Long Distance ◽  
Electric Traction

scholarly journals Wearable Vibration Sensor for Measuring the Wing Flapping of Insects

Sensors ◽  
2021 ◽  
Vol 21 (2) ◽  
pp. 593
Author(s):  
Ryota Yanagisawa ◽  
Shunsuke Shigaki ◽  
Kotaro Yasui ◽  
Dai Owaki ◽  
Yasuhiro Sugimoto ◽  
...  
Keyword(s):  
High Speed ◽  
Environmental Changes ◽  
Underlying Mechanism ◽  
Indirect Measurement ◽  
Feedback Mechanism ◽  
The Body ◽  
Vibration Sensor ◽  
Wingbeat Frequency ◽  
Film Sensor ◽  
Insect Wing

In this study, we fabricated a novel wearable vibration sensor for insects and measured their wing flapping. An analysis of insect wing deformation in relation to changes in the environment plays an important role in understanding the underlying mechanism enabling insects to dynamically interact with their surrounding environment. It is common to use a high-speed camera to measure the wing flapping; however, it is difficult to analyze the feedback mechanism caused by the environmental changes caused by the flapping because this method applies an indirect measurement. Therefore, we propose the fabrication of a novel film sensor that is capable of measuring the changes in the wingbeat frequency of an insect. This novel sensor is composed of flat silver particles admixed with a silicone polymer, which changes the value of the resistor when a bending deformation occurs. As a result of attaching this sensor to the wings of a moth and a dragonfly and measuring the flapping of the wings, we were able to measure the frequency of the flapping with high accuracy. In addition, as a result of simultaneously measuring the relationship between the behavior of a moth during its search for an odor source and its wing flapping, it became clear that the frequency of the flapping changed depending on the frequency of the odor reception. From this result, a wearable film sensor for an insect that can measure the displacement of the body during a particular behavior was fabricated.

Thermal comfort analysis of a high-speed train cabin considering the solar radiation effects

2019 ◽  
Vol 29 (8) ◽  
pp. 1101-1117
Author(s):  
Lin Yang ◽  
Xiangdong Li ◽  
Jiyuan Tu
Keyword(s):  
Solar Radiation ◽  
Thermal Comfort ◽  
High Speed ◽  
Radiation Effects ◽  
Numerical Study ◽  
Thermal Conditions ◽  
Long Distance ◽  
High Speed Rail ◽  
Hot Weather ◽  
Cabin Environment

Due to the fast development of high-speed rail (HSR) around the world, high-speed trains (HSTs) are becoming a strong competitor against airliners in terms of long-distance travel. Compared with airliner cabins, HST cabins have much larger window sizes. When the big windows provide better lighting and view of the scenery, they also have significant effects on the thermal conditions in the cabins due to the solar radiation through them. This study presents a numerical study on the solar radiation on the thermal comfort in a typical HST cabin. The effect of solar radiation was discussed in terms of airflow pattern, temperature distribution and thermal comfort indices. Parametric studies with seven different daytime hours were carried out. The effect of using the roller curtain was also studied. The overall cabin air temperature, especially near passengers, was found to have significantly increased by solar radiation. Passengers sitting next to windows were recorded to have an obvious thermal comfort variation at different hours of the day. To improve the passengers’ comfort and reduce energy consumption during hot weather, the use of a curtain could effectively reduce the solar radiation effect in the cabin environment.

DCUDP: scalable data transfer for high-speed long-distance networks

2016 ◽  
Vol 29 (4) ◽  
pp. e3846
Author(s):  
Xu Zhang ◽  
Naijie Gu ◽  
Junjie Su
Keyword(s):  
High Speed ◽  
Data Transfer ◽  
Long Distance

Long Distance High Speed Flying

1955 ◽  
Vol 100 (599) ◽  
pp. 353-367
Author(s):  
L. M. Hodges
Keyword(s):  
High Speed ◽  
Long Distance

The Calculation of Train Slipstreams on Platform of Underground High-Speed Rail Station

2013 ◽  
Vol 842 ◽  
pp. 445-448
Author(s):  
Wei Chao Yang ◽  
Chuan He ◽  
Li Min Peng
Keyword(s):  
High Speed ◽  
Three Dimensional ◽  
Horizontal Distribution ◽  
Wake Flow ◽  
Railway Tunnel ◽  
Long Distance ◽  
Near Wake ◽  
High Speed Rail ◽  
Numerical Work ◽  
Rail Station

This paper describes the results of numerical work to determine the flow structures of the slipstream and wake of a high speed train on platforms of underground rail station using three-dimensional compressible Euler equation. The simulations were carried out on a model of a simplified three-coach train and typical cross-section of Chinese high-speed railway tunnel. A number of issues were observed: change process of slipstreams, longitudinal and horizontal distribution characteristics of train wind. Localized velocity peaks were obtained near the nose of the train and in the near wake region. Maximum and minimum velocity values were also noticed near to the nose rear tip. These structures extended for a long distance behind the train in the far wake flow. The slipstream in platform shows the typical three-dimensional characteristics and the velocity is about 4 m/s at 6 m away from the edge of platform.

Concept and Applications of M-Commerce in India

2021 ◽  
Vol 1 (3) ◽  
pp. 58-60
Author(s):  
Katanakal Sarada ◽  
◽  
Dr. K. Nirmalamma ◽  
◽  
Keyword(s):  
Online Shopping ◽  
Main Idea ◽  
Mobile App ◽  
Smart Phones ◽  
The Internet ◽  
Portable Devices ◽  
Market Place ◽  
Desktop Computer ◽  
Goods And Services ◽  
The People

Mobile commerce is the buying and selling of goods and Services through wireless handled devices such as smart phones and tablets etc. Ecommerce Users to access M-commerce enables online shopping platforms without needing to use & a desktop computer. For example, purchase and sale of products. Online like banking and paying bills. (Virtual market place apps the Amazon mobile App, Android pay, Samsung pay etc...) The main idea behind M. commerce Is to enable various applications and services available on the internet to portable devices (mobiles, laptops, tables etc.) to overcome the constraints of a desktop computer. M commerce aims Serve all information and material needs of the people in a convenient and easy way.

Design of Equivalent Device Based on Ethernet Communication

2011 ◽  
Vol 341-342 ◽  
pp. 868-872
Author(s):  
Hui Xin Zhang ◽  
Yan Lu Zheng ◽  
Yan Ran Chen ◽  
Hai Guang Yang
Keyword(s):  
Measurement System ◽  
High Speed ◽  
Data Transfer ◽  
Long Distance ◽  
Aircraft Measurement ◽  
Transfer Mode ◽  
Analog Signals ◽  
Self Testing ◽  
Test Platform ◽  
Equivalent Test

To match, test, and determine the working conditions and correctness of each function of the aircraft measurement system. This article proposes a design of equivalent test platform which can produce digital and analog signals for the self-testing of measurement system. By using the ethernet protocol chip W5300 to achieve the high-speed communication between host computer and equivalent device. Communication uses UDP unicast data transfer mode with advantages of high-speed and long-distance transmission, and the Phenomenon of data packet loss is not easy in transmission.

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