• Title/Summary/Keyword: balancing

Search Result 2,817, Processing Time 0.038 seconds

A Patient with Spinal Accessory Neuropathy after Self Neck Massage Treated with TMJ Balancing Therapy: A Case Report (경부 자가 마사지 후 척수부신경병증을 호소하는 환자의 턱관절균형요법 치험례)

  • Hakwon Kim;Jung Eun Choi;Sang Soo Park;Wang Jung Hur;Horyong Yoo;Miso S. Park
    • Journal of TMJ Balancing Medicine
    • /
    • v.13 no.sup
    • /
    • pp.27-33
    • /
    • 2023
  • The purpose of this study is to describe the effects of temporomandibular joint balancing therapy on a patient with a spinal accessory neuropathy. A patient reported sternocleidomastoid muscle and trapezius muscle weakness after self-massage. The patient was instructed to wear the Accurate Balancing Appliance (ABA) for at least 8 hours per day and maintain an upright posture. The patient received cervical spine manipulation on day 2, 4, and 6. The patient's progress was tracked based on the angle at which the head turned to the right from the midline when she lifted her head while lying down, as well as the muscle strength and pain in the right trapezius muscle. The patient recovered spontaneously after 7 days. The ABA and cervical spine manipulation assisted the patient in reducing fatigue and discomfort during daily activities.

  • PDF

Cell Balancing to Improve Safety and Performance against Unbalanced Voltage between Secondary Battery Cells (2차전지 셀(Cell) 간의 불균형 전압 발생에 대한 안전성 및 성능향상을 위한 셀 밸런싱(Cell Balancing))

  • Yongho Yoon
    • The Journal of the Institute of Internet, Broadcasting and Communication
    • /
    • v.24 no.4
    • /
    • pp.141-146
    • /
    • 2024
  • Energy Storage System(ESS) have been developed to store and efficiently utilize energy, transitioning from the traditional method of producing and consuming energy immediately via fossil fuels and generators. With the advancement of this technology, Battery Management System(BMS) that manage Li-ion batteries at the cell level play a crucial role in enhancing battery performance, lifespan, and safety. Among the BMS functions, cell balancing, which aligns the imbalanced voltages of cells, is essential for optimizing capacity in devices like ESS. It ensures all cells maintain the same voltage and capacity, improving performance and output stability. Therefore, this paper examines the operational characteristics of the cell balancing method within BMS when charging an imbalanced Li-ion battery.

A Dynamic Load Balancing Scheme based on Host Load Information in a Wireless Internet Proxy Server Cluster (무선 인터넷 프록시 서버 클러스터에서 호스트 부하 정보에 기반한 동적 부하 분산 방안)

  • Kwak Hu-Keun;Chung Kyu-Sik
    • Journal of KIISE:Information Networking
    • /
    • v.33 no.3
    • /
    • pp.231-246
    • /
    • 2006
  • A server load balancer is used to accept and distribute client requests to one of servers in a wireless internet proxy server cluster. LVS(Linux Virtual Server), a software based server load balancer, can support several load balancing algorithms where client requests are distributed to servers in a round robin way, in a hashing-based way or in a way to assign first to the server with the least number of its concurrent connections to LVS. An improved load balancing algorithm to consider server performance was proposed where they check upper and lower limits of concurrent connection numbers to be allowed within each maximum server performance in advance and apply the static limits to load balancing. However, they do not apply run-time server load information dynamically to load balancing. In this paper, we propose a dynamic load balancing scheme where the load balancer keeps each server CPU load information at run time and assigns a new client request first to the server with the lowest load. Using a cluster consisting of 16 PCs, we performed experiments with static content(image and HTML). Compared to the existing schemes, experimental results show performance improvement in the cases of client requests requiring CPU-intensive processing and a cluster consisting of servers with difference performance.

Rotor Dynamics의 현황과 문제점

  • 김폴영일
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
    • /
    • 1997.10a
    • /
    • pp.11-19
    • /
    • 1997
  • 이 글의 내용은 다음과 같다 1.서론 2.Rotor Dynamics에서의 Quotes & Misquotes/역사 바로 세우기 3.Rotor Dynamics는 이대로 좋은가\ulcorner 3.1.Rotor Dynamics와 Balancing 3.2.Balancing은 ultra-precision process 3.3.Unbalance response의 현황과 문제점 3.4.Jeffcott Rotor[Jeffcott 1919] 3.5.National Rotor Dynamics Test Facility의 필요성 4.결론

  • PDF

Development of a Multi-link VPN Load Balancing Technology (다중링크 VPN 분하균등 기술 개발)

  • 김정우;손주영
    • Proceedings of the Korea Multimedia Society Conference
    • /
    • 2003.05b
    • /
    • pp.175-178
    • /
    • 2003
  • 현재 다중 링크VPN(Virtual Private Network) 장비들은 회선 장애(Fail-Off) 발생 시 회선 간의 전이(Transition) 기능만 가능할 뿐이고, 부하균등(Load Balancing)은 고려하지 않고 있다. 이럼으로써 다중 회선의 효율성이 크게 떨어지는 결과를 보인다. 본 논문에서는 부하균등을 하면서 회선장애 발생 시 전이되는 기술을 제안하였다.

  • PDF

Implementation of Battery Management System for Li-ion Battery Considering Self-energy Balancing (셀프에너지 밸런싱을 고려한 리튬이온전지의 Battery Management System 구현)

  • Kim, Ji-Myung;Lee, Hu-Dong;Tae, Dong-Hyun;Ferreira, Marito;Park, Ji-Hyun;Rho, Dae-Seok
    • Journal of the Korea Academia-Industrial cooperation Society
    • /
    • v.21 no.3
    • /
    • pp.585-593
    • /
    • 2020
  • Until now, 29 fire accidents have occurred; 22 of them were caused by the interconnection of renewable energy sources that occurred during the rest period after the lithium-ion battery had been fully charged regardless of the seasons. The fire accidents of ESS were attributed to thermal runaway due to the overcharging of a few cells with the phenomenon of self-energy balancing, which is unintentional current flow from cells with a high SOC to the low cells if the SOC condition of each cell connected in parallel is different. Therefore, this paper proposes a novel configuration and operation algorithm of the BMS to prevent the self-energy balancing of ESS and presents a hybrid SOC estimation algorithm. From the test results of the self-energy balancing phenomenon between aging and normal cells based on the proposed algorithm and BMS, it was confirmed the possibility of self-energy balancing, which is unintentional current flow from cells with a high SOC to cells with a low SOC. In addition, the proposed configuration of the BMS is useful and practical to improve the safety of lithium-ion batteries because the BMS can reliably disconnect a parallel connection of the cells if the self-energy balancing current becomes excessively high.

The Case Study on Game Balancing for Player VS Player Fighting Game (대전 격투게임의 사례 분석을 통한 게임 밸런싱 연구)

  • Han, Seung-Woo;Lee, Jae-Joong;Park, Jin-Wan
    • Journal of Korea Game Society
    • /
    • v.8 no.1
    • /
    • pp.15-27
    • /
    • 2008
  • Games can be divided into different genres such as action, adventure, role playing, simulation and etc based on the types of the play provided to a player. And each genre has various kinds of balancing system. Fighting games are classified as one of the action genres. They seem to have a simple structure but there is a variety of complex balancing factors. Because there are quite a number of the fighting games that were developed in a relatively short period, it is possible to identify diverse balancing systems in the fighting games from unstable ones in the early stage to the recent ones in a stable condition. The balancing system allows players to use all the contents offered in the game by eliminating the imbalance created among the various components. It helps players maintain their interest during the procedure. Furthermore, it gives the justification, increases the efficiency of controlling, and develops the empathy in the process. Therefore, the balancing system plays a crucial role in the games when it comes to getting an evaluation and building popularity, which can determine its lifespan. In this study, we researched on the possibilities of expanding an application to the other genres by understanding the established balancing model developed from the case study of the fighting games.

  • PDF