청소년의 성문제와 목회상담

김영근 ( Young Keun Kim ) 한국복음주의상담학회 2010 복음과 상담 Vol.14 No.-

This paper focussed on the role of pastoral counseling for adolescents’ sexual problems. Firstly, this paper researched several previous studies on sexuality perception and problems among the youth. This paper illustrated five items including increase of sexual desire, masturbation, premarital sex, date, social learning theory as adolescents’ sexual problems. This paper furthermore concentrated its study on premarital sex as the most concerning issue among the five items. This paper illustrated 10 approaches as the role of pastoral counseling for the adolescents’ sexual problems. The ten items were made on the basis of Oh Sung Choon’s five aims of Christian education for the young and McDowell and Hostetler’s seven qualities of Christian counselors for the young. The ten approaches are as follows. ① Listen to carefully adolescents’ hurt story ② Utilize family and parents of the adolescents as a bridge of sexual counseling ③ Put the function of church for juvenile sex education into practice ④ Build up adolescents’ right belief system and value system ⑤ Encourage up adolescents to fill up their lives with better valuable things besides sex ⑥ Bring up specialists of the adolescents’ sex counseling ⑦ Accept positively the adolescents with failed experiences in sexual problems ⑧ Resist a compromising attitude against sound Christian sexual ethics ⑨ Teach adolescents the law of diminishing in sexual satisfaction ⑩ Admonish desirable attitude and behavior toward sex.

터널 건전도 평가를 위한 라이닝 모델실험

김영근,Kim, Young Keun 한국터널지하공간학회 1999 자연, 터널 그리고 지하공간 Vol.1 No.2

Recently, many deformations in tunnel such as crack and leakage were occulted. Specially, the defects of tunnel lining have been a serious problem in safety and stability many repair works for maintenance in tunnel have been carried out. Therefore, it is necessary to estimate the structural cracking for countermeasure in deformed tunnel and to investigate on the characteristics of lining system and the soundness of tunnel. In this study model tests for tunnel lining were carried out using test apparatus and centrifuge, In the direct loading test, the prototype was Kyungbu high-speed railway tunnel and the scale is 1/10, and lining models were made of concrete. Test conditions included load conditions such as direction, shape and type, lining conditions such as single and double lining, thickness, and reinforcement. In centrifuge model test, the prototype was Seoul subway tunnel and the scale is 1/100, and lining models were made of aluminum and hydrostone. Test conditions included tunnel defects such as thickness shortage. behind cavity and longitudinal cracks, reinforcement methods such as epoxy, grouting and carbon sheet. From these model tests , the characteristics of deformation and failure for tunnel lining were estimated, and the structural behaviors of deformed lining and the effects of repair and reinforcement for tunnel lining were researched.

Zigbee 통신 solution을 이용한 거리 측정

김영근,허창우,Kim, Young-Keun,Hur, Chang-Wu 한국정보통신학회 2008 한국정보통신학회논문지 Vol.12 No.10

현대에 컴퓨터를 기반으로 무선으로 데이터를 측정하고 제어하는 device들이 보편화되어 있으며, 낮은 가격으로 높은 성능을 낼 수 있는 device들이 각광 받고 있다. 그리고 산업 환경에서 유선 이용이 불가능한 곳이나 직접 사람이 들어갈 수 없는 위험한 장소의 거리 측정 할 때 Zigbee 통신 Solution을 이용한다면 공간의 제약 없이 컴퓨터로 데이터를 분석 처리 할 수 있다. Zigbee 통신은 기존의 RF나 bluetooth등에 비해 전력소모에서 효율적이고 battery 사용을 장시간 사용할 수 있는 장점을 가지고 있다. 또한 시스템 구현 비용이 아주 저렴하기 때문에 네트워크에 많은 노드들을 설치 할 수 있다. 이에 본 논문에서 구현한 거리 측정 무선 송/수신 시스템은 여러 개의 LMC(Laser Measuring Control)와 이에 상응하는 여러 개의 Slave Zigbee에서 하나의 Master Zighee 까지 무선으로 데이터를 송신한다. Master Zigbee는 LMC에서 측정한 데이터들을 수신 받아 컴퓨터로의 처리를 하고자 하였다. At the present day, devices for measurement and control of data by wireless based computer have been generalized. The devices with low cost and high performance have been spotlighted. If Zigbee communication solution is used in dangerous places and places that can not in use wire communication, computer can process data without limitation. Zigbee communication solution is effective in power consumption as compared with RF or bluetooth and can use battery. System cost of Zigbee also is very low, so can install lots of nodes. The system made in this paper transmit by wireless many LMCs(Laser Measuring Control) of wireless transmission system for distance measurement and many slave Zigbee to a master Zigbee.

아크릴 공중합체와 지방산 카르바미드의 블렌딩에 의한 내구유연발수제의 제조에 관한 연구 - Ⅲ . 나일론 직물에의 발수가공 -

김영근,박창환,박홍수 ( Young Keun Kim,Chang Hwan Park,Hong Soo Park ) 한국공업화학회 1995 공업화학 Vol.6 No.1

내구유연발수제를 제조할 목적으로 전보에서 각각 합성한 poly(OMA-co-DAMA)[PODC], poly(DMA-co-DAMA)[PDDC], poly(EMA-co-DAMA)[PEDC] 각각의 양이온화물과 지방산 카르바미드의 양이온화물을, 왁스류 및 유화제들과 블렌드시켜 발수제 PODCW, PDDCW, PEDCW를 각각 제조하였다. 발수제 PODCW, PDOCW, PEDCW 각각을 나일론 태피터에 단독 및 수지병용으로 처리하여 내세탁성, 방추도, 인열강도 및 접촉각 등을 측정해 본 결과, 물성의 향상을 가져왔다. 그러나 발수도는 PODCW의 경우 90^- 정도로 사용가능하였으나, PDDCW화 PEDCW의 발수도는 저하되었다. 또한 발수제와 나일론 섬유와의 반응메카니즘을 추정하고 내세탁성 결과치를 검토한 결과 제조된 발수제가 내구성 발수제임을 입증하였으며, SEM으로 발수처리된 나일론 태피터의 표면구조를 관찰하였다. Durable softening water-repellenting agent such as PODCW, PDDCW and PEDCW were prepared by blending cationized compounds such as poly(OMA-co-DAMA)[PODC], poly(DMA-co-DAMA)[PDDC] and poly (EMA-co-DAMA)[PEDC], and cationized compound of fatty carbamide, of which synthetic methods were reported in the previous paper, wakes, and emulsifiers. The results of washability, crease recovery, tearing strength and contact angle of the nylon taffeta treated with PODCW, PDDCW and PEDCW with and without textile finishing resin, showed a remarkable improvement of the physical properties. Rating of water repellency of nylon taffeta treated with PODCW was 90^-, but those treated with PDDCW and PEDCW were not high enough to use in industry. From the results of the searching of reaction mechanism of nylon fiber with water-repellenting agent and washability of the fiber treated with water-repellenting agents, the prepared water-repellenting agent proved to be durable. Surface structures of nylon taffeta treated with water-repellenting agent were examined by SEM.

아크릴 공중합체와 지방산 카르바미드의 블렌딩에 의한 내구유연발수제의 제조에 관한 연구 - Ⅰ . 면직물에의 발수가공 -

김영근,이종민,박은경,박홍수 ( Young Keun Kim,Chong Min Lee,Eun Kyung Park,Hong Soo Park ) 한국공업화학회 1994 공업화학 Vol.5 No.2

내구유연발수제를 제조할 목적으로 전보에서 합성한 poly(OMA-co-DAMA)[PODC], poly(DMA-co-DAMA)[PDDC], poly(EMA-co-DAMA)[PEDC] 각각의 양이온화물, 본 실험에서 합성한 지방산 카르바미드의 양이온화물(ODTCC), 왁스류 및 유화제들을 블렌드시켜 발수제 PODCW, PDDCW, PEDCW를 각각 제조하였다. 발수제 PODCW, PDDCW, PEDCW 각각을 면직물에 단독 및 수지병용으로 처리하여 내세탁성, 인열강도, 방추도 및 접촉각 등을 측정해본 결과, 물성의 향상을 가져왔다. 그러나 발수도는 PODCW의 경우 80 정도로 사용 가능하였으나, PDDCW와 PEDCW의 발수도는 현저히 저하되었다. 제조된 발수제의 적정 열경화온도는 140℃, 적정 사용농도는 3wt%이었고, 사용된 발수제용 촉매 중 아세트산나트륨이 가장 좋았으며, 촉매의 사용농도는 0.6wt%가 적당하였다. 또한 발수제와 셀룰로오스 섬유화의 반응메카니즘을 규명하고 내세탁성 결과치를 검토한 결과, 제조된 발수제가 내구성 발수제임을 입증하였으며, SEM으로 발수처리된 면직물의 표면구조를 관찰하였다. Each of the three cationized compounds synthesized previously, poly(OMA-co-DAMA)[PODC], poly(DMA-co-DAMA) [PDDC] and poly(EMA-co-DAMA) [PEDC] was blended with waxes, emulsifiers and cationized fatty carbamide(ODTCC) synthesized in this study for the preparation of some durable softening water-repellenting agents, PODCW, PDDCW and PEDCW. The results of washability, tearing strength, crease recovery and contact angle of the cotton fabrics treated with PODCW, PDDCW and PEDCW with and without textile finishing resin, showed remarkable improvement of the physical properties. Rating of water repellency of cotton fabric treated with PODCW was 80, but those treated with PDDCW and PEDCW were not high enough to use in industry. Proper curing temperature of the synthesized water-repelleting agents was 140℃; proper using concentration was 3wt% ; sodium acetate was the best catalyst for water-repellenting agents among the used, and proper concentration was 0.6wt%. From the results of reaction mechanism of cellulosic fiber with water-repellenting agent and washability of the fibers treated with water-repellenting agents the prepared water-repellenting agent proved to be durable. Surface structures of cotton fabrics treated with water-repellenting agent were investigated by SEM.

좌심실을 침범한 부정맥유발성 우심실심근증

김영근 ( Young Keun Kim ),김정희 ( Jeong Hee Kim ),김동규 ( Dong Gyu Kim ),정경태 ( Kyoung Tae Jeong ),최유정 ( Yu Jeong Choi ),이상 ( Sahng Lee ),박순창 ( Soon Chang Park ) 대한내과학회 2009 대한내과학회지 Vol.76 No.8

소각비산재를 이용한 Cylinder - Type 흡착제를 제조시 첨가제에 의한 영향

김영근(Young Keun Kim),심영숙(Young Suk Sim),이우근(Woo Keun Lee) 大韓環境工學會 2002 대한환경공학회지 Vol.24 No.6

수중발파용 구조체를 이용한 수중발파 시공사례

김영근 ( Young- Keun Kim ),김승곤 ( Seung-kon Kim ) 대한화약발파공학회 2018 화약발파 Vol.36 No.2

기존 수중발파와 달리 잠수부에 의존하지 않고 바지선위에서 천공, 장약, 발파 등 수중발파작업의 전 과정이 바지선 상부에서 이루어 질 수 있도록 완전수밀이 가능한 수중발파용구조체를 제안 및 제작하였다. 이 구조체를 이용한 수중발파와 기존 수중발파의 결과를 비교하여 현장 적용성 및 효용성을 검증하였다. This study introduces a suggested underwater blasting method in contrast with conventional underwater blasting methods which adopt the drilling and charging procedures by divers. A structural underwater charging system makes it possible to drill into underwater bedrock and charge explosives on the deck of barge ship. The applicability and effectiveness of the suggested method was experimentally approved by comparing with a kind of underwater charging system as a conventional underwater blasting method.

논문 : 농산물,식품가공공학 ; 착색단고추 세척기 개발

김영근 ( Young Keun Kim ),윤홍선 ( Hong Sun Yoon ),최중섭 ( Jung Seub Choe ),이영희 ( Young Hee Lee ) 한국농업기계학회 2011 바이오시스템공학 Vol.36 No.5

The amount of export of paprika has been increased rapidly in recent years. Therefore, its cultivation area has greatly increased in Korea according to current consumer`s attraction. Moreover, it becomes one of the major exporting products while it recorded 53 million dollars, in 2009 resulting in 40% of the total vegetables export. Most of the products are exported to Japan, but it is necessary to prolong the quality preservation periods to export paprika to nations like U.S.A. or EU. However, to encourage an export to many countries, washing and disinfection became more important to deal with longer transportation and medical inspection. The non-chemical use is very important due to stronger regulation of safety to agricultural production. Accordingly, this study was performed to determine the optimum conditions and develop a prototype washing machine, hot water washing of paprika. The results were as follows: The working performance of the prototype was 938 kg/hr, and which was 1.5 times higher than the conventional air gun type washing machine. The operation cost of prototype was 30 won/kg, and 56% of the cost was reduced when compared with air gun type washing machine.

흉부 전산화단층촬영검사를 위한 최적의 저선량 프로토콜에 관한 팬텀연구

김영근(Young-Keun Kim),양숙(Sook Yang),왕태욱(Tae-uk Wang),김은혜(Eun-Hye Kim) 대한방사선과학회(구 대한방사선기술학회) 2021 방사선기술과학 Vol.44 No.2

The purpose of this study was to evaluate optimal CT scan parameters to minimize patient dose to the irradiation and maintain satisfactory image quality in low-dose chest computed tomography (CT) scans. In a chest anthropomorphic phantom, chest CT scans were performed at different kVp and mA within reference of 3.4mGy in volume CT Dose Index (CTDIvol). The following quantitative parameters had been statistically evaluated: image noise, signal-to-noise ratio (SNR), contrast-to-noise ratio (CNR), and figure of merit (FOM). Nine radiographers conducted the blind test to select the optimal kVp-mA combination. Results indicated that the kVp-mA combination of 80kVp-90mA, 100kVp-50mA, 120kVp-30mA and 140kVp-30mA were obtained high SNR and CNR. The 120kVp-30mA combination offered good compromise in the FOM, which showed the quality and dose performance. In the blind test, an image of 80kVp-90mA obtained a high score with 4.7 points, and 120kVp-10mA or 140kVp-10mA with a low tube current were observed severe noise and poor image quality, thus resulting in decreased diagnostic accuracy. On the other hand, in the combination of high kVp and high mA(140kVp-90mA), the image quality was improved, but the radiation dose was also increased. the FOM value of 140kVp-90mA was lower than 120kVp-30mA. The application of appropriate scan parameters in low-dose chest CT scans produced satisfactory results in dose and image quality for the accuracy of the clinical diagnosis.