• Journal of Magnetics
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• 제15권2호
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• pp.91-98
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• 2010

The paper presents results of a study on the selective separation technology of ferrous and non-ferrous metals from broken light bulbs. The proposed method is to use magnetic fluids to obtain a magnetic fluid based- separation. [1] The study was conducted using three types of waste materials: regular light bulbs, auto light bulbs and neon tubes. In order to process the waste materials, a six stages technologic flow was developed: a) separation of light bulbs components; b) Physical and chemical analysis of raw materials; c) grain conditioning of the raw material; d) dry magnetic separation of ferrous components; e) magnetic fluid separation of non-magnetic material; f) recovery of the magnetic fluid adhered to the surface of the separated material grains. [2] This study shows that magnetic fluid separation is only profitable for regular and auto light bulbs and is not profitable in the case of neon tubes.

• 한국동물번식학회:학술대회논문집
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• 한국동물번식학회 2004년도 춘계학술발표대회
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• pp.284-284
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• 2004

본 연구는 Elk 사슴에서 Magic Doctor(한경게놈텍)를 이용하여 발정동기화 인공수정 후 재발정 행동의 발현양상을 관찰하기 위해 실시하였다. 미경산록 7두와 경산록 13두를 공시하였고, 발종동기화 및 인공수정은 번식계절인 9월에 progesterone이 3 g 함유된 controlled intravaginal drug-releasing device(CIDR)를 14일간 질내에 삽입하고 제거한 후에 pregnant mare serum gonadotropin(PMSG) 250IU틀 근육 주사하여 발정동기화와 배란을 유도하였다. 인공수정은 CIDR제거 후 60∼62시간째에 실시하였고 인공수정 후 비임신 개체의 재발정 발현 양상을 관찰하였다. (중략)

• 한국임상수의학회지
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• 제17권1호
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• pp.285-288
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• 2000

Nine immature 30-day-old female rats were injected sc at 0800 hr with pregnant mare serum gonadotrophin(PMSG) to induce ovulation and mating. Fifty-six hours later the animals were placed with mature male rats overnight (one female and one male). Five of 9 immature female rats treated with PMSG were pregnant and allowed to maintain the pregnancy to term. Three of 5 pregnant rats were failed to maintain pregnancy to term. Two of 5 pregnant rats seemed to be developed normally and increased abdominal enlargement as pregnancy progresses, but did not occurred parturition on day of 43 or 48 of pregnancy, respectively. On day 44 or 49, pregnant rats were killed and examined uterus and ovaries. There was no fetus but approximately 50∼60ml. of mucopurulent fluids were accumulated in the uterine cavity and 40 or 42 corpora lutea persisted in the ovaries. Pyometra was developed after coitus in PMSG-treated immature female rat.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 2005년도 추계 학술발표회 제17권2호
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• pp.113-116
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• 2005

In this study, in order to. investigate the effectiveness af tuned liquid damper (TLD) for the seismic performance enhancement af the existing reinforced concrete (RC) apartment structure which is nat seismically designed, shaking table test was conducted for the small scale five stary RC structure with TLD. TLD model was constructed to. have the frequency tuned to. the first modal frequency af the structure, $2\%$ mass ratio. af the first modal mass, and 0.08 liquid depth ratio. White noise with $0.2\~5Hz$ frequency bandwidth tests were performed using the shaking table at Korea Institute af Machinery and Materials, and the displacement and absolute acceleration af each floor were measured. Test results indicate that mare than $30\%$ seismic responses reduction can be achieved using TLD for RC structure under white noise.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2010년도 하계학술대회 논문집
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• pp.234-234
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• 2010

Most high efficiency silicon solar cells use a passivated selective emitter. It have been an important research subject for crystalline silicon solar cells for decades. It is being used in production for high efficiency solar cells. Most of the selective emitter process require expensive extra masking, etching steps, and a double diffusion process making selective emitters not cost effective. In this paper, we study method for single diffusion step selective emitter process as an alternative to not cost effective double diffusion process. Cost effective selective emitter that the efficiency should be increased significantly (mare than 0.2%) and that the process should simple, robust and cheap.

• 대한한방소아과학회지
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• 제18권2호
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• pp.201-208
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• 2004

Objectives : The purpose of this study is to find out whether Insook-san has any effects on children with disorder of sleep. Methods : The subject are in regard to 6 children with disorder of sleep who visited Dong-so Oriental Medicine hospital from September 2003 to June 2004. The herbal therapy are applied. Result : After treatment, the symptoms (Insomnia, sleep terror, night-mare, night crying etc.) were improved. Conclusion : More studies about the Oriental medical treatment and conception on disorder of sleep are needed.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 1995년도 Proceedings of the Korea Automation Control Conference, 10th (KACC); Seoul, Korea; 23-25 Oct. 1995
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• pp.348-351
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• 1995

This note proposes a robust LQR method for systems with structured real parameter uncertainty based on Riccati equation approach. Emphasis is on the reduction of design conservatism in the sense of quadratic performance by utilizing the uncertainty structure. The class of uncertainty treated includes all the form of additive real parameter uncertainty, which has the multiple rank structure. To handle the structure of uncertainty, the scaling matrix with block diagonal structure is introduced. By changing the scaling matrix, all the possible set of uncertainty structures can be represented. Modified algebraic Riccati equation (MARE) is newly proposed to obtain a robust feedback control law, which makes the quadratic cost finite for an arbitrary scaling matrix. The remaining design freedom, that is, the scaling matrix is used for minimizing the upper bound of the quadratic cost for all possible set of uncertainties within the given bounds. A design example is shown to demonstrate the simplicity and the effectiveness of proposed method.

• 한국응용곤충학회지
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• 제33권3호
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• pp.184-193
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• 1994

한국산 환성충상과를 연구하는중 Ogma koesanense sp.n는 두부에 2개의 주름을 가지고 있으며, 첫째주름은 둘째주름보다 훨씬 크고, 둔한 자편이 17~19줄의 종주선을 이루고 있으며 꼬리는 뽀족하므로 신종으로 발표한다. Criconemella annulata, Criconema cardmomi, Ogma decalineatum, O. dryum 등 4종은 한국미기록종으로 동정되었다. Criconema cardmomi에 대한 형태적 특징을 재검토하였고, 각선층 중류별로 기주식물을 새로이 추가한다.

• 한국임상수의학회지
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• 제35권1호
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• pp.22-25
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• 2018

A 7-year-old, 453 kg, thoroughbred-cross mare showed depression, severe nasal bleeding, diffuse swelling, and distortion of the facial contour. Physical and radiographic examinations revealed an open nasal bone fracture. Surgery was conducted under sedation with the horse in a standing position. Two holes were drilled directly above and below the fracture line. The nasal bone was raised to the normal position by inserting a periosteal elevator through the holes. Orthopedic wire was used to secure the fractured nasal bones through the holes. The horse recovered from sedation without complication. Sutures were removed three weeks after surgery. The nasal bone fracture appeared well-recovered morphologically and the recovery was confirmed by radiography. A wire fixation method is recommended to treat nasal bone fracture in a horse.

• 대한수학회논문집
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• 제34권4호
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• pp.1303-1313
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• 2019

Recently Hui et al. ([8,9]) studied contact CR-warped product submanifolds and also warped product pseudo-slant submanifolds of a $(LCS)_n$-manifold $\bar{M}$. The characterization for both these classes of warped product submanifolds have been studied here. It is also shown that there do not exists any proper warped product bi-slant submanifold of a $(LCS)_n$-manifold. Although the existence of a bi-slant submanifold of $(LCS)_n$-manifold is ensured by an example.