• Title/Summary/Keyword: mechanism

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A Study on Weighting Pathogenic Factor for Oriental OB&GY Questionnaires (한방부인과 진단 설문지의 병기가중치 부여연구)

  • Cho, Young-Jin;Cho, Hye-Sook;Kim, Kyu-Kon;Lee, In-Seon
    • The Journal of Korean Obstetrics and Gynecology
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    • v.18 no.4
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    • pp.119-135
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    • 2005
  • Purpose : This study was investigated, in order to improve that reliability of disease mechanism diagnosis, which were used for the object diagnosis of Oriental medicine in the dept. of Oriental OB&GY, Oriental Medical hospital of Dong-Eui University, amend to a disease mechanism item of Questionnaires and indexes of disease mechanism, we were thought that the results were more pointed to the condition of appropriate disease mechanism, as a result of put a results of Questionnaires and belongs to indexes of disease mechanism together, we suggested to call it a 'weight of disease mechanism', because It was possible to mark a different degrees of indexes of disease mechanism in the same points. Methods : We analyzed the results of Questionnaires about 3354 outpatients who had OB&GY disease in the Oriental Medical hospital of Dong-Eui University from April 2000 to March 2004. Results : 1. weight of disease mechanism is 10 score according to disease mechanism score and the standard of reliability. 2. The standard of reliability is same 11 disease mechanism item except stagnated blood, cold syndrome, dry- ness, phlegm. Conclusion : Weight of disease mechanism which show satisfaction the conditions of standard of reliability, appear the results of Questionnaires, against previous study investigated reliability of Questionnaires make it through the standard of reliability.

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Organizational-Economic Mechanism of the Development of the Agro-Industrial Complex in Modern Conditions

  • Ivanko, Anatolii;Vasylenko, Nataliia;Bushovska, Lesia;Makedon, Halyna;Dvornyk, Inna
    • International Journal of Computer Science & Network Security
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    • v.22 no.2
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    • pp.107-114
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    • 2022
  • The main purpose of this study is to substantiate the theoretical and methodological foundations of the organizational and economic mechanism of development of the agro-industrial complex in modern conditions. Organizational and economic mechanism is presented as a complex organizational structure of the system type, which is aimed at performing specific functions, the characteristic feature of which is the constant support of process changes without which the organizational and economic mechanism can not exist. There are four components of the agro-industrial complex, represented by agriculture and the national economy, which ensure its operation, including industry, processing of agricultural products, its storage and transportation, sale and repair and maintenance of agricultural machinery and more. It is proved that the organizational and economic mechanism of development of agro-industrial complex in modern conditions it is expedient to consider: from the point of view of system and process approaches; as a set of economic levers and organizational measures to influence the agro-industrial complex; constituent components of organizational influence on the development of the complex; a set of components, elements that are integrated into the system of economic relations of the subjects of the agro-industrial complex; a set of purposeful stimulators of agro-industrial complex development. The functions of the organizational component of the mechanism of agro-industrial complex include: redistributive, planning, interaction, control, integration and regulatory functions, the functions of the economic component include consumer, investment and innovation, social, incentive, monitoring functions of the mechanism. The symbiosis of the functions of organizational and economic components ensure the effectiveness of the organizational and economic mechanism of the organizational and economic mechanism through its functionalities as a whole.

Study for Loading Characteristic of Tilting Mechanism on Korea Tilting Train (II) - Adjustmemt for Interface of carbody and Bogie (한국형틸팅열차 틸팅기구장치 부하특성 평가 연구(II) - 대차/차체 인터페이스 조정에 의한 정적부하 영향분석)

  • Ko, Tae-Hwan;Lee, Wang-Sang;Lee, Bum-Sang
    • Proceedings of the KSR Conference
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    • 2011.10a
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    • pp.951-956
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    • 2011
  • As the evaluation of loading characteristic on tilting mechanism is the most important one of the function test of tilting mechanism, the changing characteristic of load must be investigated on tilting of carbody for both the static and running condition of train. In this study, we reduced the load of tilting mechanism by adjusting the interface of carbody and bogie such as the weight balance, level of underframe, height of leveling valve, height of axle box and center position of tilting actuator with the characteristic curve of load for optimal condition of the tilting mechanism obtained in the previous study. Furthermore, the factor and effect of the interfacial structures respecting the load of tilting mechanism was evaluated by analyzing the changing characteristic of load obtained in the process of adjustment of interfaces. From these data, we will propose the maintenance standards for interfacial structures and tilting mechanism in order to minimize the load of tilting mechanism by analyzing in detail the characteristic of load for the main factors of the interfacial structure effecting on the load of tilting mechanism.

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Reduced Chemical Kinetic Mechanism for Premixed CO/H2/Air Flames ([ CO/H2/Air ] 예혼합 화염에 대한 준총괄 화학반응 메커니즘)

  • Jang, Kyoung;Cha, Dong-Jin;Joo, Yong-Jin;Lee, Ki-Yong
    • Transactions of the Korean Society of Mechanical Engineers B
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    • v.32 no.2
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    • pp.133-140
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    • 2008
  • A reduced chemical kinetic mechanism is developed in order to predict the flame phenomena in premixed $CO/H_2/Air$ flames at atmospheric pressure, aimed at studying the coal gas combustion for the IGCC applications. The reduced mechanism is systematically derived from a full chemical kinetic mechanism involving 11 reacting species and 66 elementary reactions. This mechanism consists of four global steps, and is capable of explicitly calculating the concentration of 7 non-steady species and implicitly predicting the concentration of 3 steady state species. The fuel blend contains two fuels with distinct thermochemical properties, whose contribution to the radical pool in the flame is different. The flame speeds predicted by the reduced mechanism are in good agreement with those by the full mechanism and experimental results. In addition, the concentration profiles of species and temperature are also in good agreement with those by the full mechanism.

Development of Expert Systems using Automatic Knowledge Acquisition and Composite Knowledge Expression Mechanism

  • Kim, Jin-Sung
    • Proceedings of the Korean Institute of Intelligent Systems Conference
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    • 2003.09a
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    • pp.447-450
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    • 2003
  • In this research, we propose an automatic knowledge acquisition and composite knowledge expression mechanism based on machine learning and relational database. Most of traditional approaches to develop a knowledge base and inference engine of expert systems were based on IF-THEN rules, AND-OR graph, Semantic networks, and Frame separately. However, there are some limitations such as automatic knowledge acquisition, complicate knowledge expression, expansibility of knowledge base, speed of inference, and hierarchies among rules. To overcome these limitations, many of researchers tried to develop an automatic knowledge acquisition, composite knowledge expression, and fast inference method. As a result, the adaptability of the expert systems was improved rapidly. Nonetheless, they didn't suggest a hybrid and generalized solution to support the entire process of development of expert systems. Our proposed mechanism has five advantages empirically. First, it could extract the specific domain knowledge from incomplete database based on machine learning algorithm. Second, this mechanism could reduce the number of rules efficiently according to the rule extraction mechanism used in machine learning. Third, our proposed mechanism could expand the knowledge base unlimitedly by using relational database. Fourth, the backward inference engine developed in this study, could manipulate the knowledge base stored in relational database rapidly. Therefore, the speed of inference is faster than traditional text -oriented inference mechanism. Fifth, our composite knowledge expression mechanism could reflect the traditional knowledge expression method such as IF-THEN rules, AND-OR graph, and Relationship matrix simultaneously. To validate the inference ability of our system, a real data set was adopted from a clinical diagnosis classifying the dermatology disease.

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Development of Conical Spring-based Jumping Mechanism for a Portable Robot (소형로봇을 위한 원추형 스프링 기반의 도약 메커니즘의 개발)

  • Kim, Byeong-Sang;Lee, Jang-Woon;Kim, Hyun-Jung;Vu, Quy-Hung;Song, Jae-Bok
    • Proceedings of the KSME Conference
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    • 2007.05a
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    • pp.1195-1200
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    • 2007
  • It is desirable that the guard robot should be small-sized and light-weighted to increase its portability. In addition, it should be able to overcome a relatively high obstacle to cope with different situations. The jumping robot can reach a higher place more rapidly than other locomotion methods. This research proposes the jumping mechanism based on the conical spring for a small robot. Both the clutch mechanism and conical spring are incorporated into the jumping mechanism. In the clutch mechanism, the spring can be immediately compressed and released by one actuator with the planetary gear train and one-way clutch. The robot equipped with the jumping mechanism can overcome the obstacles which are higher than its height. In this paper, the characteristic of the conical spring for the jumping robot is determined and the small-sized, lightweight jumping mechanism is developed. The validity of the jumping mechanism was verified by various experiments. It is shown that the robot using this mechanism can provide good mobility in the rough terrain.

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Development of a Passive Knee Mechanism for Lower Extremity Exoskeleton Robot (근력 지원용 외골격 로봇을 위한 수동형 무릎 관절 메커니즘 개발)

  • Kim, Ho-Jun;Lim, Dong-Hwan;Han, Chang-Soo
    • The Journal of Korea Robotics Society
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    • v.12 no.2
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    • pp.107-115
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    • 2017
  • In this paper, four-bar linkage mechanism for the knee joint is developed which is used in prosthetics. But unlike the prosthetics, the feature of this mechanism is that the instantaneous center of rotation of the four-bar linkages can be moved behind the ground reaction force vector so that it can be passively supported without any external power. In addition, this mechanism is developed similar to the structure of the human knee joint for eliminating the sense of heterogeneity of the wearer. In order to design the mechanism with these two objectives, optimization design process is done using the PIAnO tool and detailed design is carried out through optimized variable values. The developed mechanism is attached to the robot which can assist the hip and ankle joints. In order to verify the operation of the developed knee mechanism, an insole type sensor was attached to the shoes to compare data values before and after wearing the robot. Result data showed that wearer wearing the exoskeleton robot with the knee mechanism was the same value regardless of whether the heavy tool is loaded or not.

A Study on the Optimal Design of a R-S-S-R Three Dimensional Mechanism (3次元 R-S-S-R 機構의 最適設計 에 관한 硏究)

  • 김호룡;김경률
    • Transactions of the Korean Society of Mechanical Engineers
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    • v.9 no.4
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    • pp.528-538
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    • 1985
  • A R-S-S-R three dimensional mechanism is designed for crank-rocker type through the optimization technique. The nonlinear kinematic equation of the mechanism is formulated by adopting the concept of structural error and precision points. Taking this equation as an objective function, the required mechanism is optimally synthesized by the Fletcher-Davidon-Powell's method of optimization techniques. The structural errors due to the various positions of precision points are compared, and the results from the use of two penalty functions suggested respectively by Fiacco-McCormick and by Powell are also compared on their effectiveness. The mobility of the optimally designed mechanism is checked for the possibility of its motion, and when a mechanism is optimally designed, it is strongly suggested that the mobility must be checked on the designed mechanism.

E2GSM: Energy Effective Gear-Shifting Mechanism in Cloud Storage System

  • You, Xindong;Han, GuangJie;Zhu, Chuan;Dong, Chi;Shen, Jian
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.10 no.10
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    • pp.4681-4702
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    • 2016
  • Recently, Massive energy consumption in Cloud Storage System has attracted great attention both in industry and research community. However, most of the solutions utilize single method to reduce the energy consumption only in one aspect. This paper proposed an energy effective gear-shifting mechanism (E2GSM) in Cloud Storage System to save energy consumption from multi-aspects. E2GSM is established on data classification mechanism and data replication management strategy. Data is classified according to its properties and then be placed into the corresponding zones through the data classification mechanism. Data replication management strategies determine the minimum replica number through a mathematical model and make decision on replica placement. Based on the above data classification mechanism and replica management strategies, the energy effective gear-shifting mechanism (E2GSM) can automatically gear-shifting among the nodes. Mathematical analytical model certificates our proposed E2GSM is energy effective. Simulation experiments based on Gridsim show that the proposed gear-shifting mechanism is cost effective. Compared to the other energy-saved mechanism, our E2GSM can save energy consumption substantially at the slight expense of performance loss while meeting the QoS of user.

The Role of the Mechanism of Attracting Investment Resources in the Innovative Development of Enterprises in the Context of the Digital Economy Development

  • Lepeyko, Tetyana;Chernoivanova, Hanna;Pererva, Ivanna;Poberezhna, Zarina;Zabashtanska, Tetiana
    • International Journal of Computer Science & Network Security
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    • v.21 no.11
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    • pp.223-229
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    • 2021
  • The presented research is devoted to determining the role of the mechanism of attracting investment resources in innovative development in the conditions of transformation using the process approach. It is proved that the process approach is dominant for this study because investments are considered as a process of investing in innovative development in the enterprise in the context of digitalization, and its application allows to take into account the impact on the mechanism of attracting investment resources. related to the mechanism of attracting investment resources of the enterprise. It is substantiated that the mechanism of attracting investment resources for innovative development in the context of digitalization is a specific way of organizing, mobilizing and using investment resources for innovative development of the enterprise in the context of digitalization under the influence of economic development laws, government regulation. The effectiveness of attracting investment resources in innovative development is ensured by the mechanism that exists in the enterprise. The mechanism of attraction of investment resources in innovative development in the conditions of digitalization gives the chance to define an optimum ratio between sources and volume of attraction of investments in innovation sphere.