• Journal of the Korea institute for structural maintenance and inspection
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• v.16 no.4
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• pp.69-78
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• 2012

This paper study on the physical property of naturally vulcanizing waterproofing synthetic rubber sheet for the underground concrete wall. In order to finding the naturally vulcanizing time, the relation of vulcanizing time and tensile strength is analysed from non-vulcanizing to naturally vulcanizing time. Physical tests such as tensile strength, tear strength: etc., under the thermal environment temperature at $-20^{\circ}C$, $-10^{\circ}C$, $20^{\circ}C$, $60^{\circ}C$. The result of experiment show that the developed rubber sheet has the delay time about 85 days and the curing time about 35 days. The tensile strength increased by about 692% and coefficient of expansion decreased by about 10% which value can be sufficiently compensate the demerit of vulcanized rubber sheet. Also, all of the physical properties of the naturally rubber sheet satisfy the KS standard and compare to the vulcanized rubber sheet, the developed naturally rubber sheet have excellent durability.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.25 no.1
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• pp.96-101
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• 2021

Arduino is one of the open source microcontroller projects, and Arduino boards using AVR microcontrollers are commonly used. In general, AVR microcontrollers use ISP (In System Programming) upload, but in Arduino, serial upload through a bootloader is basically used, and a dedicated microcontroller is built into the board for this purpose. In order to use the ISP upload in Arduino, a dedicated upload device is required, which is not included in the Arduino board. In this paper, we propose a unified programmer that can handle ISP upload and serial upload through one dedicated microcontroller, and show that ISP and serial upload are possible using the unified programmer. In addition, the proposed unified programmer works as a USB-serial converter, supports serial communication with a computer, and it is also possible to burn the Arduino bootloader. All operations of the unified programmer can be confirmed through the experimental results.

• The Journal of the Acoustical Society of Korea
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• v.29 no.2
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• pp.125-132
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• 2010

Since the ancient times, animals that can imitate the voices of human beings have been considered extremely special. There are very few such animals, and the parrot is an example of them. For a long time, there had been no reported case of a rooster being able to mimic the voice of a human being, but talking roosters were recently found in Korea and the Kyrgyz Republic, generating much talk. In this study, the vocal characteristics of such roosters were examined, and their pronunciation-related statistics and actual sound sources were analyzed. The analysis results showed that even though the roostets cannot converse with people, they can imitate the human voice, uttering the words "An-dwae," and "A-ni-ya" in Korean, which mean "No" in English, when someone tries to catch their wings. A similar situation 'occurred in the Kyrgyzstan. The results of the listening survey on these sounds made by the roosters showed that most people recognized the words uttered by the roosters and that nobody thought that the words sounded like "cock-a-doodle-doo." It can be said that such roosters can make the sounds of the human voice because of their innate vocal organ and characteristics, which are significantly different from those of the general roosters. Their vocal organ and characteristics cause the sounds that they make to change in their vocal cords due to their high tension when humans try to catch them.

• Korean Journal of Social Welfare
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• v.55
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• pp.231-254
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• 2003

The main premise of this study is that the assurance on human rights of the mentally ill is contradictory to 'the greatest happiness of the greatest number' or 'therapeutic benefits'. Accordingly this study aims to find out the conceptual framework of assurance and restriction on human rights of the mentally ill. Using qualitative method, this study conducted the in-depth interview with 10 general public, 9 professionals, 6 mentally ill regarding the several issues of human rights included long-term hospitalization, restriction on driver's licence, involuntary hospitalization, restriction on communication in psychiatric ward. Research results are as follows ; two sets of dimensions are inferred from the analysis of interview transcript. First dimension is the focus of justification, ranging from the emphasis on positive consequences influenced to 'the greatest numbers'(the utilitarian thought) to the emphasis on assurance of rights without any conditions(the deontological thought). Second dimension is the locus of decision, raging from the formal system included the professionals and the government agency to the informal system included the families and the mentally ill. And there are differences in attitudes toward assurance and restriction on rights of the mentally ill among general public, professionals, and the mentally ill. In detail, general public regarded that 'involuntary hospitalization' and 'restriction on driver's license' which are apt to be directly harmful to people must be justified by consequence-centered and decided by the formal system, while 'long-term hospitalization' which is less harmful to people could be justified by right-centered and decided by the formal-system. And they thought that 'restriction of communication' could be justified by right-centered and decided by the informal system. Based on the findings, this study would conclude that practical guidelines for the promotion of human rights of the mentally ill must be developed.

• Proceedings of the CALSEC Conference
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• 1998.10b
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• pp.585-594
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• 1998

이미 전자상거래(EC)가 시간적ㆍ공간적 제약을 극복하고 국경을 초월한 새로운 교역시장 (Cyber Market)으로 등장하고 있으며 세계 자동차 산업은 표준부품의 공동개발 및 조달을 통해 중복투자 방지, 신차개발기간 단축 등 전략적 제휴를 통한 공조ㆍ공생체계 구축을 경쟁적으로 추진하고 있으나 국내 자동차업계는 제품개발, 부품조달, 판매 및 A/S 등 모든 부문을 독자적으로 해결함으로써 경쟁력 제고에 역행하는 경향이 있다. 또한 자동차 선진국과는 달리 국제 경쟁력 강화를 위한 CALS/EC 정보 기반 기술의 실질적인 활용이 미흡한 실정이다. 이러한 현실을 개선하기 위해 최근에 자동차공업협회(KAMA)와 현대, 대우, 기아 자동차 3사는 자동차 산업 CALS 추진 모델(Autopia)의 구축을 추진하고 있다. 추진 내용은 자동차 산업의 전체 Life-Cycle인 제품기획 단계부터 설계, 생산, 구매/조달, 고객지원 단계등 전 분야를 3개 부문(신차개발 프로세스, 구매조달 프로세스, 고객지원 서비스)으로 구분되어 있다. 신차개발 프로세스 부문은 차세대 PDM을 통하여 제품개발 사이클 단축을 추구하며 STEP을 통한 범용적 설계정보 교환 체계 구현이 기반이 된다. 또한 업무 흐름의 불투명성으로 인한 업무의 불균형 현상 타파와 설계 변경의 효율적 대응을 위하여 Workflow Management가 동시공학에 바탕을 두고 도입 적용되어야 한다. CAD 데이터를 비롯한 방대한 데이터의 효율적 관리를 위해서는 각 프로세스별로 독립된 정보를 체계적으로 관리할 수 있는 통합 환경(Integrated Data Environment)을 구성하여 각 프로세스에 걸쳐 데이터의 처리효율을 증대하여야 한다. 신차개발 부문의 핵심 기술이면서도 현업 적용이 초기 단계인 Digital Mockup과 Virtual Reality의 적용을 위해서는 3D 모델링이 기본 설계 방법으로 적용되어야 하며 이를 통한 어셈블리 및 부품구조의 관리가 이루어져야 한다. 구매조달 프로세스 부문은 자동차 업계의 공통 EDI/EC 네트워크 구축을 통한 경제적인 인프라 구조와 함께 부품 조달 체계의 간소화를 추구함으로써 자동차 산업의 대외 경쟁력 강화가 이루어 질 수 있다. 공개구매 시스템의 구축을 통하여 완성차별로 전속 계열화된 수직적인 부품조달 체계와 업체간 정보공유의 폐쇄성을 제거할 수 있고 완전 경쟁에 의한 우량 협력업체 발굴 기회의 확대가 용이하다. 이를 통하여 궁극적으로는 Global Vendor망의 구축이 실현될 것이다. 종합물류 시스템이 구현되면 판매는 경쟁체제, 물류는 공동화가 됨으로써 국가적으로 물류 비용의 절감이 엄청날 것으로 예상된다. 전국에 산재되어 있는 1,000여개의 대리점과 7,000여개의 정비업소를 대상으로 한 정비부품 EDI/EC 시스템이 구축되면 고객 서비스의 효율 향상과 함께 정비업소의 물류 및 재고 비용의 감소, 조달 속도의 향상, 조달 업무의 간소화 등의 효과를 보게 될 것이다. 고객지원 서비스는 정비정보 시스템, 산업정보 시스템, 쇼핑몰 시스템, 등록대행 시스템등을 통하여 일반 국민들이 피부로 느낄 수 있는 시스템으로 구축 되어야 할 것이다.

• Applied Biological Chemistry
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• v.9
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• pp.153-159
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• 1968

In this paper the auther investigated the chemical properties, process of humification and type of humic acid in soils which were reclaimed by farming for cultivation in Kangwondo. The results obtained in this studies were summarized as follows: 1. General chemical components of these soil were similar to the ordinary soil but C.E.C. and humus contents were found much more 2. Humic acid and fulvic acid which were extracted with NaOH from soil were greater than those of Na-pyrophosphate(Na-p.) and NaF. Hmus contents and PQ% were increased much more in the upper layer than in the lower layer. 3. Degree of humification of humic acid extracted with NaOH. was very similar to those extracted with Na-pyrophosphate. Humification degree of humic acid extracted with NaF was lower than humic acid which were extracted with NaOH and Na-pyrophosphate. But humification degree of humic acid extracted with NaOH was similar to that with Na-pyrophosphate. Humic acid in B soil and the upper layer was higher than A, C soil and the lower layer of soil, in humification degree. 4. Humic acids extracted with NaOH and Na-pyrophosphate from soil were fractionated by Mg into two parts ${\alpha}$ type and ${\beta}$ type humic acid. Humic acids of ${\alpha}$ and ${\beta}$ type extracted with NaOH were higher than these of Na-pyrophosphate in humification degree. In this soil the humification degree of humic acid was not changed during the period of cultivation. 5. ${\alpha}$, ${\beta}$ type humic acid extracted with NaOH were very similar to the humic acid extracted with Na-pyrophosphate in shapes of absorption curves.

• Journal of Korean Medical classics
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• v.20 no.2
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• pp.231-268
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• 2007

재일본규주황한의학적전통의학지전신취시중국전통의학적지식(在日本叫做皇漢醫學的傳統醫學之前身就是中國傳統醫學的知識). 16세기이래(16世記以來), 일본불단수도이개조중국의학적최신성과(日本不斷收到而改造中國醫學的最新成果), 동양원류우부동홍류적한방의학체계점점형성적과정전후(同樣源流又不同洪流的漢方醫學體系점점形成的過程前后), 출현료4개학문유파(出現了4個學問流派). 저취시(저就是)"후세파(后世派)"."고방파(古方派)"."절충파(折衷派)"."고증파(考證派)". 소우호세파(소于호世派), 논자이경재대한한의학원전학회지적제19권3호상보고료(논者已경在大한한의학原典학회紙的第19卷3호上보告了), 본논문시연속적연구성과(本논文是연속的硏究成果). 종이재본논문상(종而在本논文上), 이한국적이정환(以한국的李政桓), 백유상(白裕相), 정창현등적연구여중국양영적연구위기초(丁彰炫等的硏究與中國梁嶸的硏九爲基礎), 요개략지보고일본의학방면상적‘고방파’(要槪略地報告日本의학方面上的'古方派'). "고방파"지칭부정근세송명의학이지지지한대장중경적"상한잡병론"지일본의가("古方派"指稱否定近世宋明醫學而只支持漢代張仲景的"傷寒雜病論"之日本醫家). 일반"상한론"전파우일본적실정시대(一般"傷寒論"傳播于日本的室町時代), 명응년간(明應年間)(1492${\sim}$1500)판정운재명유학후(阪淨運在明留학후), 타회도일본적시후(他回到日本的시候), 종명수입(종明수入)"상한잡병론(傷寒雜病論)", 이후일본후세한의칭송료이관동지역적영전덕본(以후日本후世漢醫칭송了以關東地域的永田德本)(1513-1603)위(爲)"고방파적선구자(古方派的先구者)". 도강호시대재일본학술계출현료복고사조(到江戶時代在日本學術係出現了復古思潮). 이등인제(伊藤仁劑)(1627${\sim}$1705)앙망료유학적경전(仰望了儒學的經典), 이차적극지주장료의학적복고(而且積極地主張了醫學的復古), 이후적생조래(以후荻生組徠)(1666${\sim}$1728)대우복여성인적학문부단노력(對于復與聖人的學問不斷努力). 인차복고적학문재덕천시대성위일대학파(因此復古的學問在德川時代成爲一代學派), 18세기상반기시전성시기(18世紀上半期是全盛시期). 주요의가시명고옥현의(主要醫家是名古屋玄議)(1628${\sim}$1696), 후등양산(後藤양山)(1659${\sim}$1733), 산협동양(山脅東洋), 병하천민(병河天民)(1679${\sim}$1719), 송원유악(松原維嶽)(1689${\sim}$1765), 향천수암(香川修庵)(1683${\sim}$1755), 타문복고적유학영향도흔다의학방면(他문復古的儒學影향到흔多의학方面). 중요의가길익동동(重要醫家吉益東洞)(1702${\sim}$1773)도후대피평위고방적'태두'(到后代被평위古方的'泰斗'), 동시'마귀'(同시'魔鬼'). 인차본논문소우황한의학지중"후세파"여반대후세파적"고방파"(因此本論文소于皇漢醫學之中"后世派"與反대后世派的"古方派"), 통과학파명칭여역사지위(通過學派名稱與歷史地位), 주요의가적생애(主要醫家的生涯), 학술적요지(學術的要旨), 저서등(著書等), 이연구병보고타문적학문주장(以硏究병報告他們的學問主張). 이차진저차궤회(而且진저次机회), 상회고아문한의학연착여하역사적궤적(想回고我문韓醫學沿着如何歷史的軌跡).

• Journal of the korean academy of Pediatric Dentistry
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• v.41 no.4
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• pp.292-297
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• 2014

DNA extraction is a prerequisite for the identification of pathogens in clinical samples. Commercial DNA extraction kits generally involve time-consuming and laborious multi-step procedures. In the present study, our modified DNA isolation method for saliva samples allows for the quick detection of pathogens associated with dental caries or periodontitis by PCR within 1 h. To release DNA from the bacteria, 1 min of boiling was adequate, and the resulting isolated DNA can be used many times and is suitable for long term storage of at least 13 months at $4^{\circ}C$, and even longer at $-20^{\circ}C$. In conclusion, our modified DNA extraction method is simple, rapid, and cost-effective, and suitable for preparing DNA from clinical samples for PCR for the rapid detection of oral pathogens from saliva.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.2 no.2
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• pp.121-155
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• 2007

This paper was based on the answers of the BI(Business Incubating) managers who had been working in the business incubating field. The main purpose of this research was to figure out working conditions of those managers and to find out proper solutions. The result of the research was as follows. Overall economic rewards for those managers were relatively low level, job conditions for those managers were short-time contract-basis and those managers' ages were relatively young, 20s or 30s, and majority of the managers' working experience was usually less than 3years. Also some of the full-time managers were spending much of their working time in administration affairs rather than practical business incubating or business incubating consulting service. Therefore, the satisfaction level for their salary and working condition was quite unsatisfactory and they didn't have positive vision for their job and for their business consulting service. As a result to resolve those negative affects and to promote overall working for those BI managers, authorized certificates are necessary for those BI managers. Then they can specialize BI managing works and can improve their working conditions by blocking non -certified workers and can advance the quality of their consulting service.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.33 no.2
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• pp.84-91
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• 2005

For long time, the takeoff and landing control of airship was worked by human handling. With the development of the autonomous control system, the exact controls during the takeoff and landing were required and lots of methods and algorithms were suggested. This paper presents the result of airship take-off and landing by buoyancy control using air ballonet volume change and performance control of pitch angle for stable flight within the desired altitude. For the complexity of airship's dynamics, firstly, simple PID controller was applied. Due to the various atmospheric conditions, this controller didn't give satisfactory results. Therefore, new control method was designed to reduce rapidly the error between designed trajectory and actual trajectory by learning algorithm using an artificial neural network. Generally, ANN has various weaknesses such as large training time, selection of neuron and hidden layer numbers required to deal with complex problem. To overcome these drawbacks, in this paper, the RBFN (radial basis function network) controller developed. The weight value of RBFN is acquired by learning which to reduce the error between desired input output through and airship dynamics to impress the disturbance. As a result of simulation, the controller using the RBFN is superior to PID controller which maximum error is 15M.