군장국가산단(장항지구) 호안 설계

권오기,고장희,남세현,김성구,Kwon. O-Gi,Ko. Jang-Hee,Nam. Se-Hyun,Kim. Seong-Goo 한국방재학회 2007 한국방재학회 학술발표대회논문집 Vol.2007 No.1

This project is the 1st. stage for the foreshore reclamation at Jang-Hang area and its scope is to construct a seawall as outer facilities, road adjacent to the seawall and drainage gate. for the safe protections of the facilities at the reclaimed land hereafter, we adopted the mild slope rubble mound type for the seawall structure which was excellent in interrupting the wave overtopping, as a result of numerical & hydraulic model test about alternative 4 sections. For the flooding prevention of the reclaimed land, we planned the drainage system that could make the flood water level lower than the reclaimed land level. Also, we planned the eco-friendly waterfront area with 8 nature themes through the whole seawall sections.

On-Line UPS 기능 내장형 ESS 설계 및 적용

권용효(Yong-Hyo Kwon),김말수(Mal-Soo Kim),오기형(Gi-Hyeong OH),장성국(Sung-Kuk Jang),최종철(Jong-Chul Choi),박기원(Ki-Won Park) 대한전자공학회 2016 대한전자공학회 학술대회 Vol.2016 No.6

본 논문에서는 ESS(Energy Storage System)의 Battery측 DC 전압을 공유하여 기본적인 ESS구성에 On-Line UPS기능을 함께 가지는 Multi-Function ESS를 설계하고, 적용한 기술을 설명 한다. 용량은 PCS 250kW, Battery 190kWh, UPS 125kW용량으로 구성하였으며, UPS는 125kWh 2Set를 이중화하는 구성으로 설계 하였다. On-Line UPS 기능 내장형 ESS 전체 제어는 PMS를 통해 이루어지며, 기본적으로 계통연계(GC), 독립운전(GI), GC와 GI가 센싱을 통해 자동으로 절체되는 Auto Mode 제어 모드를 가지며, TOU Application 운영이 가능하도록 제어기를 구현하였다. 또한 PMS는 Battery SoC를 모니터링하여, 사용자가 ESS와 UPS운영을 필요에 따라 용량을 정의하고 운영할 수 있도록 하였다. 관련기술을 기본/상세 설계 후 제작하여, 기능 및 성능에 대한 시험 검증 후 실제 부하와 연계하여 실증한 사례를 기술 한다.

건물 피난관련규정의 국가별 차이 비교

장길수,남기봉 東新大學校 1997 論文集 Vol.9 No.-

There are fire safety provisions in building codes for means of escape. But these provisions don't satisfy the new concepts and technics of architectual planning and forms. In this study, the escape provisions in the codes and regulatoins of 5 countries are compared. The concept and differences among countries are discussed for developing perfomance based standards. The fundamental difference between Korea and other countries in escape capacity is based on the occupant load factors.

황색포도상구균 신속 검출용 간이 진단키트

김기영,박샛별,문지혜,이상대,이새롬,장윤정 충남대학교 농업과학연구소 2013 농업과학연구 Vol.40 No.2

This study was performed to develop a rapid test kit for pathogenic Staphylococcus in various samples. The rapid detection kit has been fabricated based on nitrocellulose lateral-flow strip. Colloidal gold and Staphylococcus antibodies were used as a tag and a receptor, respectively. Manually spotted Staphylococcus antibody and anti-mouse antibody on the surface of nitrocellulose membrane were used as test and control lines, espectively. Feasibility of the rapid kit to detect Staphylococcus aureus in samples were evaluated. The intensity of the color of the tes line started to increase with the samples in which higher concentration of the cells were contained. The sensitivity of the sensor was 106 cfu/mL Staphylococcus spiked in PBS. Also, the rapid test kit could detect 105 cfu/mL of Staphylococcus in chicken meat extract.

풀뿌리 스포츠 현장의 참여관찰(1) : 새벽운동의 서술 Description of Daybreak Exercise

장덕선,전기영 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.14 No.4

This study was about how spontaneous physical activity had made and curiosity about what's the meaning to those exercisers. To understand the nature of exercise, participant observation was used as a qualitative method. Observing place was Backryonsan(Mountain) Hong Eun Dong Seodaemun Gu. Observing time was 5:30- 7:30 AM and researcher also participated. Observed situation was recorded in 1 or 2 hours so it could be very vivid actual. Daybreak exercise was analysed as one thing. and the place, activity and exerciser was systematized. Daybreak exercises were classified as gymnastics around Eun Pyong Jung, weight training in physical fitness place, pine trees in hillareas, small open area and people who walk or running mountain roads. From early 30 years old married women to over 70 years old men used Eun Pyong Jung as a exercising place and it took 15-20 minutes. Physical fitness place was for weight training and it was open to anybody and anytime. And also, there were people who used small open area and walk or running the mountain roads. Exercise group was spontaneously formed and very intimacy, so they wanted to have other activities. Gymnastic groups need a leader, naturally it could be a older man's role. These indigenous mass sport should consider the preservation of spontaneous exercise culture, protection of green zone, physical training equipment's maintenance and repair of neighboring park, the course of development of health promotion and fitness used by nature. Future study was searching what psychological meaning and benefits of exercise and pursuit the positive and negative aspects on exercise.

混紡織物(T/C)의 耐候性을 目的으로 한 染色方法에 관한 硏究

張炳浩,張璣旭 成均館大學校 科學技術硏究所 1989 論文集 Vol.40 No.1

The weatherproof is an important characteristic of the T/C blended dyed fabrics. To study the dyeing method for the weatherproof in this thesis, making a various change of the concentration of dyes, the blended fabrics get to dye with each different method of dyeing. The weatherproof of these dyed fabrics is measured according to the time of irradiation and this research presents the durability, the fastness of washing, and the fastness of friction that are the physical and chemical changes related the above experiment. The results of these experiments are briefly as follows: 1. Though large in accodance to the difference of dyeing method, the change of weatherproof is little according to the concentration of dyes in the same method of dyeing. 2. The reason that the fastness of washing and friction is not on the decrease, despite the tensile strength of sample a_:er-treated with direct dyes has decreased by 15'0 or so with the lapse of 8 through 32 hours, is considered that formalin used in after- treatment is in full action. 3. In view of the above experimental results, it is considered that the dyeing and dyeing methods must he selected so as not to decrease the tensile strength.

WWW 기반의 질의 및 튜닝 지원 시스템

장기화,우용태 國立 昌原大學校 精報通信硏究所 1998 精報通信論文集 Vol.2 No.-

In this paper, we propose a new type of gateway system for WWW-Oracle interface. It supports various types of relational queries on the WWW such as join between two tables, one level nested queries, ORDER BY and GROUP BY operations in conditional clause. In addition, an application designer can suggest an access method for a table by query selection with a hint option on the WWW. It causes the Oracle optimizer to chose the specified access path. By this function, an application designer can choose more efficient way than the optimizer can determine. The designer can also check the execution time of the SQL statement on the WWW.

忠南地域의 市·郡別 連繫軸 分析 및 豫測 : Axes in Chungnam Province

張瞳鎬,趙箕鎬 公州大學校 地域開發硏究所 1994 地域開發硏究論叢 Vol.2 No.1

Sinc 기저함수를 이용한 CGFFT의 수렴률 개선

이기태,장재성,김장형 濟州大學校工科大學附屬産業技術硏究所 1992 尖端技術硏究所論文集 Vol.3 No.-

The current induced on a perfectly conducting strip excited by incident fields which are transverse magnetic (TM) wave or transverse electric (TE) wave to the strip axis are solved by three methods. The one is analytic and the others are numerical methodd; SIT (Spectral Iteration Technique), CGFFT (Conjugate Gradient Fast Fourier Transform). It is estimated accuracy of current values, as that are compared results of the analytic method with that of the numerical methods. The procedure involves the incorporation of subdmain basis functions associated with the current representation of a conducting strip. It is shown that significant improvements are achieved in the convergences of the CGFFT method when using sinc basis functions.

PGE_2와 DBcAMP가 골조직 세포의 생리적 활성에 미치는 영향

이준기,채한정,강장숙,김형룡 원광대학교 생체재료·매식연구소 1998 원광생체재료·매식 Vol.7 No.2

One of the primary functions for which bones have evolved is to act as structural support. To achieve this goal, bones are remodeling throughout life so that their structure remains optimal for the prevailing mechanical environment. Bone remodeling consists of an initial phase of osteoclastic bone resorption followed by a bone formation period. Prostaglandins are potent regulators of bone formation and bone resorption that can have both stimulatory and inhibitory effects. Elevation of intracellular cAMP is an important intracellular signaling mechanism involved in the regulation of the expression of many proteins. In this study, the author examined whether PGE_2 or DBcAMP affected osteoblastic activation or osteoclastic differentiation in mouse bone marrow cells and osteosarcoma ROS 17/2.8 cells. The effect of PGE_2 and DBcAMP on the cell proliferation was measured by the incorporation of [^3H]-thymidine into DNA. From the result, PGE_2( 0.5-1 ㎍/ml ) and DBcAMP(0.1-0.5 mM) inhibited the [^3H]-thymidine incorporation into DNA. The effect of PGE_2 and DBcAMP on the induction of alkaline phosphatase(ALP) was investigated in ROS 17/2.8 cells cultured in medium containing 0.4% fetal bovine serum. PGE_2 and DBcAMP stimulated ALP activity in the cells. PGE_2 also increased the intracellular cAMPs contents with a maximal effect at 0.5 ㎍/ml. ROS 17/2.8 cells released nitric oxide upon stimulation of PGE2 or DBcAMP with interferon-γ. PGE_2 and DBcAMP increase the phosphorylation level of CREB(cAMP response element binding protein) without any change on the amount of CREB protein. Also, PGE_2 (10^-6 M) and DBcAMP (10^-4 M) significantly increase the generation of osteoclast-like cell in mouse bone marrow cell culture system. In conclusion, the results of this study suggested that PGE_2 and cAMP should appear to be an important regulatory molecule in the processes of bone formation and resorption.