• Title/Summary/Keyword: automatic

Search Result 14,362, Processing Time 0.039 seconds

Dynamic Characteristics of Automatic Transmission System Due to the Change of Planetary Gear Ratio (자동변속기내 유성기어비 변화에 의한 동력전달계의 동적특성)

  • 박영일;김영석
    • Journal of the Korean Society for Precision Engineering
    • /
    • v.15 no.10
    • /
    • pp.120-127
    • /
    • 1998
  • In this study the dynamic characteristics of automatic transmission system due to the change of the planetary gear ratio is studied. To study the power flow and shift quality for power transmission the simulation program is developed using the modeling and analysis technique. The results from this study will be used in designing the basic structure of automatic transmission using planetary gear system.

  • PDF

Automatic Video Management System Using Face Recognition and MPEG-7 Visual Descriptors

  • Lee, Jae-Ho
    • ETRI Journal
    • /
    • v.27 no.6
    • /
    • pp.806-809
    • /
    • 2005
  • The main goal of this research is automatic video analysis using a face recognition technique. In this paper, an automatic video management system is introduced with a variety of functions enabled, such as index, edit, summarize, and retrieve multimedia data. The automatic management tool utilizes MPEG-7 visual descriptors to generate a video index for creating a summary. The resulting index generates a preview of a movie, and allows non-linear access with thumbnails. In addition, the index supports the searching of shots similar to a desired one within saved video sequences. Moreover, a face recognition technique is utilized to personalbased video summarization and indexing in stored video data.

  • PDF

Micro computer-controlled automatic test method for automotive brake system (Micro computer를 이용한 자동차용 brake 시험 자동화 system에 대한 고찰)

  • 정화영
    • Journal of the korean Society of Automotive Engineers
    • /
    • v.9 no.5
    • /
    • pp.6-18
    • /
    • 1987
  • Owing to remarkable development in automotive industry, vehicle performance comes close to perfection and guarantee of stability is getting emphasized in accordance with high speed trend in vehicle. In recent years, the utilization of automatic test method for research and development of automotive brake system is being propelled actively, which pursue whole automatic control from simple measurement to data acquisition. The main subject of this paper is to make a brief explanation on Micro computer controlled Automatic Test Method for Automotive Brake System which makes it possible to test with high accuracy and speed.

  • PDF

The Development Trend of AVCS Technology in IVHS (IVHS의 AVCS 기술의 국내외 개발동향)

  • Hong, Sun-Cheol;Lee, Jang-Hui;Jeong, Yong-Il
    • 연구논문집
    • /
    • s.24
    • /
    • pp.141-149
    • /
    • 1994
  • Recently, IVHS technology attracted public attention according as national IVHS project was initiated by SOC. In advanced countries, specially in USA, Europe, and Japan. IVHS technology was already studied for over ten years as national strategic project. In this paper we describe the concept and development trend of AVCS which is a part of IVHS technology. The important contents in AVCS are automatic collision warning and avoidance system, automatic intelligent cruise control system, automatic vehicle platoon control system, automatic lateral control system, etc.

  • PDF

Development of a GC-MS Automatic Analysis Program to Provide Information on Exposure to Chemical Substances (화학물질 노출정보 제공을 위한 GC-MS 분석자동화 프로그램 개발)

  • Park, Seung-Hyun;Park, Hae Dong;Jang, Miyeon;Ro, Jiwon;Cho, Hyounmin
    • Journal of Korean Society of Occupational and Environmental Hygiene
    • /
    • v.31 no.1
    • /
    • pp.1-12
    • /
    • 2021
  • Objective: The purpose of this study was to contribute to the prevention of occupational diseases through the development of an automatic analysis program for evaluating workers' exposure to hazardous chemical substances. Methods: The authors selected chemical substances that caused occupational disease in Korea and chemical substances that are frequently used in industrial sites as target substances for a GC-MS automatic analysis program. The target substances are organic compounds which can be measured by a passive sampler. The automatic analysis program was studied using various raw data obtained from GC-MS analysis for the target substances. Results: A total of 48 organic compounds that can be measured with a passive sampler were selected as target substances for the GC-MS automatic analysis program. The selected compounds included substances that caused occupational disease, substances related to C1 and D1 in special health examinations, and substances for which work environment measurements have been frequently conducted. The GC-MS automatic analysis program was developed by combining information mainly on retention time and mass spectrum. The GC-MS automatic analysis program is designed to analyze unknown samples by comparing the mass spectrum and retention time of the samples to those of reference materials. To evaluate the stability of the program, samples at about the 30-50% level of OELs were prepared and analyzed with the GC-MS automatic analysis program, resulting in stable results for all 48 organic compounds. Conclusion: An automatic analysis program for a total of 48 organic compounds was developed using a GC-MS system that can analyze organic compounds. Unknown samples that contain the 48 organic compounds can be automatically analyzed by the developed program. It is anticipated that it can contribute to the prevention of occupational diseases through an GC-MS automatic analysis program that can quickly provide workers with information on exposure to chemical substances.

Parents and Peer Attachment in Relation to Automatic Thought of Adolescents (청소년의 부모 및 또래 애착과 자동적 사고의 관계)

  • Lee, Young-Hwa;Lim, Jung-Ha
    • Journal of Korean Home Economics Education Association
    • /
    • v.23 no.4
    • /
    • pp.35-48
    • /
    • 2011
  • The purpose of this study was to examine the relationship between attachment and automatic thoughts of adolescents. A sample of 443 students at middle and high schools participated. Adolescents reported parent and peer attachment using the modified version of Inventory of Parent and Peer Attachment (Armsden & Greenberg, 1987) and automatic thoughts using the modified version of Automatic Thought Questionnaire (Hollon & Kendall, 1980; Ingram & Wisnicki, 1988). Multiple regression analyses indicated that effects of attachments were different by the type of automatic thoughts. Specifically, trust in peer relations, trust in father-adolescent relations and communication in mother-adolescent relations were important predictors of positive automatic thought, whereas alienation in father-adolescent relations, alienation in peer relations and trust in mother-adolescent relations were important predictors of negative automatic thought.

  • PDF

CC의 구조적 분석을 통한 분류자동화 원리유도

  • 이경호
    • Journal of Korean Library and Information Science Society
    • /
    • v.15
    • /
    • pp.113-151
    • /
    • 1988
  • The enumerative classification schemes do not represent the tiny mass of knowledge embodied in a article in a periodical or in a chapter or a paragraph of a book. But today's information centers regard a tiny spot of knowledge embodied in a article as a class. we call this micro-thought. But the enumerative classification are manual systems, it cannot be a n.0, pplied to the automation of classification. The purpose of this study is to build a general principle for the automatic book-classification which can be put to use in library operation, and to present a methodology of the automatic classification for the library. The methodology used is essentially theoretical, Published works by and about Ranganathan, especially 6th edition of the CC were studied, analyzed. The principle of automatic book classification derived from the analysis of colon classification and facet combinations. The results of this study can be summarized as follows ; (1) This study confined the fields of library science and agriculture. (2) This study represent a general principles for the automatic book classification of library science and agriculture. (3) Program flowcharts are designed as a basis of system analysis and program procedure in library science and agriculture. (4) The principles of the automatic classification in library, science is different from that of agriculture. (5) Automatic book classification can be performed by the principle of faceted classification, by inputting the title and subject code into a computer. In addition, the expected value from the automatic book-classification is as follows (1) The prompt and accurate of classification is possible. (2) Though a book is classified in any library, it can have same classification number. (3) The user can retrieve the classification code of a book for which he or she wants to search through dialogue with the computer. (4) Since the concept coordination method is employed, a tiny mass of knowledge embodied in a article in a periodical or in a chapter or a paragraph of a book can be represented as a class. (5) By performing automatic book-classification, the automation of library operation can be completed.

  • PDF

A Study on the Standard for Automatic Exchange of Financial Account Information (정기 금융정보교환을 위한 조세조약 이행규정 고찰)

  • Ryu, Hae-Young;Chae, Soo-Joon
    • Asia-Pacific Journal of Business
    • /
    • v.8 no.2
    • /
    • pp.31-39
    • /
    • 2017
  • Countries around the world have been engaging in automatic exchange of information to tackle tax evasion. The same goal became the basis of the enactment of the Foreign Account Tax Compliance Act (FATCA) by the United States Congress. In order to establish a common approach to counter tax evasion among different countries, the Organization of Economic Cooperation and Development (OECD) released the Standard for Automatic Exchange of Financial Account Information in Tax Matters which consists of the Competent Authority Agreement (CAA) and the Common Reporting Standard (CRS). Specifically, the automatic exchange of information is the exchange of financial account information between Tax Authorities in relevant countries. The law requires this information to be collected by financial institutions around the world for reporting to Tax Authorities. Automatic exchange of Information is made up of two information sharing frameworks: The Foreign Account Tax Compliance Act (FATCA) and The Common Reporting Standard (CRS). Under the automatic exchange of information, all financial institutions must identify accounts held by customers who are foreign tax residents or entities connected to foreign tax residents. Financial institutions must report these to the relevant Tax Authority who will then automatically exchange the account information with the relevant foreign Tax Authorities. Korean government has enacted domestic laws to require financial institutions to collect and report this information and has entered into international agreements to exchange the information with other governments. This paper analyzed the FATCA and CRS rules overall and proposed solutions for the legal and practical issues. This paper contributes to the existing literature on the automatic exchange of information by considering two information sharing frameworks.

  • PDF

Automatic Color Recognition System for Stockigt Sizing Test (II) - Application of the automatic recognition principle of red coloration for developing the novel automatic system - (스테키히트 시험용 자동발색인지 시스템 개발을 위한 기초 연구(II) -자동 발색 인지 원리를 적용한 발색 자동인지시스템-)

  • Kim, Jae-Ok;Kim, Chul-Hwan;Park, Chong-Yawl;Kwon, Oh-Chul
    • Journal of Korea Technical Association of The Pulp and Paper Industry
    • /
    • v.37 no.1 s.109
    • /
    • pp.73-81
    • /
    • 2005
  • Stockigt sizing test, which is readily affected by individual tester's bias as well as testing conditions in recognizing red coloration, had to be modified to improve its reliability and reproducibility. The novel testing system with the automatic recognizing program of red coloration was developed with the auxiliary equipments including an automatic liquid dispenser and a specimen shifter. The analysis program used a hue value of a droplet image in recognizing a point of time on red coloration instead of RGB values that are not similar to human perception of color. Hue was more sensitive in recognizing the red coloration of a droplet than the other two factors, Saturation and Value. During the test, the program records the time consumed up to a specific hue value of a droplet on a specimen. Differently from the conventional test, the automatic test could obtain a reliable and reproducible sizing degree with a minor error. Furthermore, the Stockigt sizing degree measured by the automatic system showed great correlations with contact angle and Hercules sizing degree. It means that such great correlations will contribute to the development of an integrated measuring system capable of predicting contact angle, surface tension, surface energy and Hercules sizing degree of paper and paperboards through the Stbckigt sizing test. It was meaningful to note that the automatic system for Stbckigt sizing test might be able to used to predict contact angle, Hercules and Cobb sizing degree, based upon the high correlation coefficients.

Development of an Automatic Silkworm Breeding System

  • Sang Kwun Jeong;Sung Wook Jang;Jin kook Son;Seong Wan Kim
    • International Journal of Industrial Entomology and Biomaterials
    • /
    • v.47 no.2
    • /
    • pp.79-89
    • /
    • 2023
  • This paper is about the development results of an automatic silkworm breeding system to reduce labor and time by automatically performing the works for silkworm droppings changing and feed its food. It consists of an automatic guided vehicle and a processing unit. The automatic guided vehicle transports a silkworm dropping changing frame mounted on a silkworm tray stand, and the processing unit takes over the dropping changing frame on it, removes excrement contained the droppings changing frame and feeds silkworm food. In the case of the current silkworm farming, because the breeding period for large silkworms (4 to 5 stage) is short to 14 days and the supply of mulberry leaves takes 98% of the total amount of mulberry leaves needed for breeding silkworms at this time, labor concentration is intensive, and all breeding works depends on manpower. Therefore, it was difficult to breed large silkworms on a large scale. Moreover, silkworms are bred by adding Silkworm bed (Seop) and mulberry in the silkworm tray, and their droppings changing is to separate silkworms and excrement by moving silkworm trays one by one, and the production cost increases due to the high-cost manpower for silkworm breeding. To solve this problem, technology for automating silkworm breeding has also been developed. However, there is still a limitation that silkworm feeding and droppings changing works are not suitable for mass breeding because a lot of labor and time are spent depending on manual work. Therefore, a new silkworm breeding system for breeding silkworm automatically is needed and so we developed an Automatic Silkworm Breeding System applying the droppings change frame, the inverting unit, the feeding silkworm food device and automatic guided vehicle.