• Safe Food
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• 제2권1호
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• pp.48-52
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• 2007

• 농약과학회지
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• 제12권4호
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• pp.382-390
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• 2008

본 연구는 69종의 농약(살충제 41종, 살균제 18종, 살비제 10종)에 대한 꿀벌(A. mellifera)과 서양뒤영벌(B. terrestris)에 급성독성과 잔류독성을 평가하였으며, 국제 생물적 방제기구(IOBC)의 기준에 따라 30% 이하를 독성이 없음으로 분류하였다. 급성독성실험에서 41종의 살충제 중에 acetamiprid, chlorfenapyr, thiacloprid, milbemectin, buprofezin+amitraz 5종이 꿀벌에, methomyl, thiodicarb, acetamiprid, chlorfenapyr, thiacloprid, abamectin, spinosad, buprofezin+amitraz 8종은 서양뒤영벌에 대해서 독성이 낮아 안전하였다. 그리고 살균제 18종과 살비제 10종은 꿀벌과 서양뒤영벌에 대해 모두 안전하였다. 잔류독성실험에서 41종의 살충제 중 꿀벌에 대해서 약제처리 3일 이후부터 안전한 약제는 8종 (dichlorvos, methomyl, imidachlorprid, emamectin benzoate, spinosad, cartap hydrochloride, chlorfenapyr, endosulfan) 이고, 11일차까지도 독성이 높은 약제는 16종(dimethoate, fenitrothion, fenthion, methidathion, phenthoate, pyraclofos, fenpropathrin, clothiamdin, dinotefuran, thiamethoxam, abamectin, acetamiprid+ethofenprox, acetamiprid+indoxacarb, bifenthrin+midacloprid, ethofenprox+phenthoate, imidacloprid+methiocarb)이었다. 서양뒤영벌에 대해서는 약제처리 3일 이 후부터 안전한 약제는 8종(dimethoate, methidation, a-cypermethion, ethofenprox, indoxcarb, chlorpyrifos+a-cypennethrin, esfenvalerate+ fenitrochion)이고, 7일차까지도 높은 독성을 나타낸 약제는 8종(pyraclofos, clothianidin, thiamethoxam, fipronil, acetamiprid+ethofenprox, chlorpyrifos+bifenthrin, ethofenprox+phenthoate, imidacloprid+methiocarb)이었다.

• 한국심리학회지 : 문화 및 사회문제
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• 제20권4호
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• pp.281-305
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• 2014

본 연구에서는 고령운전자의 자기-평가 안전운전행동과 운전이동성(이동량, 안전운전능력, 상황적응능력 및 사회활동) 그리고 주관적 안녕감(삶의 만족, 긍정 정서 및 부정 정서) 사이의 상호관련성을 살펴보았다. 65세 이상의 남녀 고령운전자 142명을 대상으로 한국형 자기보고식 노인 안전운전행동 척도, 고령자 이동성 척도, 그리고 두 가지의 주관적 안녕감 척도(삶의 만족, 긍정 정서/부정 정서 척도)를 이용한 면대면 설문조사를 실시한 후 수집된 자료를 상관분석과 경로분석을 통해 분석하였다. 본 연구의 주요 결과를 요약하면 다음과 같다. 첫째, 자기-평가 안전운전행동 점수가 높은 고령운전자는 주관적 안녕감도 높았다. 둘째, 자기-평가 안전운전행동 점수가 높은 고령운전자들은 운전이동성 전체 점수뿐만 아니라 물리적 이동량을 제외한 모든 운전이동성 하위요인에서의 점수도 높았다. 셋째, 물리적 이동량을 제외한 운전이동성의 하위요인 점수들, 그리고 운전이동성 전체점수가 높을수록 삶의 만족이나 정적 정서 점수는 높은 반면 부적 정서 점수는 낮았다. 넷째, 자기-평가 안전운전행동과 주관적 안녕감 사이의 관계에서 운전이동성의 전체점수와 이동성의 하위요인 중 물리적 이동량을 제외한 안전운전능력, 상황적응능력, 사회활동의 매개효과가 유의하였는데, 구체적으로 안전운전능력과 상황적응능력은 삶의 만족과 긍정 정서를 정적으로 완전매개한 반면, 안전운전능력과 사회활동은 부정 정서를 부적으로 완전매개하였다. 본 연구의 시사점과 추후 연구 방향에 대해 기술하였다.

• 한국항공우주학회지
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• 제41권7호
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• pp.561-568
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• 2013

7,000lb 급 헬리콥터를 위한 무베어링 로터 허브 시스템을 설계한 후, 무베어링 로터 허브 시스템의 주요 구성품 중 하나인 유연보에 대해 요구수명 8,000시간을 만족하는지 확인하기 위한 피로해석을 수행하였다. 2차원 탄성 보 모델에 대한 단면 구조해석 방법을 적용하였으며, 정적구조해석을 통해 피로손상에 취약할 것으로 예상되는 두 단면에 대한 피로해석을 수행하였다. 구조해석을 위해 VABS를 사용하여 유연보 단면 형상에 대한 인장, 굽힘 및 뒤틀림 강성을 계산하였고, wohler equation을 적용하여 유연보를 구성하는 두 가지 복합재 소재에 대한 S-N 곡선을 생성하였다. CAMRAD II를 통해 무베어링 로터 시스템의 하중해석을 수행하였으며, 하중해석 결과를 HELIX/FELIX 표준하중 스펙트럼에 적용하여 무베어링 로터 시스템의 하중 스펙트럼을 생성한 후, 이를 통해 피로해석을 수행하였다.

• Journal of Menopausal Medicine
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• 제24권3호
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• pp.143-149
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• 2018

Lack of adequate sleep has become increasingly common in our 24/7 modern society. Reduced sleep has significant health consequences including metabolic and cardiovascular disorders, and mental problems including depression. In addition, although the increase in life expectancy has provided a dream of longevity to humans, the occurrence of osteoporosis is a big obstacle to this dream for both male and female. It is known that insomnia and bone health problems, which are very critical conditions in human life, interestingly, share a lot of pathogenesis in recent decades. Nevertheless, due to another side effects of the synthetic drugs being taken for the treatment of insomnia and osteoporosis, patients have substantial anxiety for the safety of drugs with therapeutic expectation. This review examines the pathogenesis shared by sleep and osteoporosis together and herbal medicine, which has recently been shown to be safe and efficacious in the treatment of both diseases other than synthetic drugs. We suggestions for how to treat osteoporosis. These efforts will be the first step toward enabling patients to have comfortable and safe prescriptions through a wide selection of therapeutic agents in the future.

• 방재기술
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• 통권28호
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• pp.30-36
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• 2000

This manuscript is based on the report "THE RESEARCH ON THE OBJECT TO BE FIRE RESISTIVE AND THOSE LIMITS" issued by FILK. With advancement of the life style recently. People seek for more comfort therefore the aspect of the residence is getting more complex. Meanwhile, the vital and property loss caused fire is getting higher. For the safe of the public welfare, these fire hazard should be controlled by governmental system. It will also be satisfactory if this small opinion could be helpful for the safe.

• Journal of Hydrospace Technology
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• 제2권2호
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• pp.80-87
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• 1996

A creep-buckling analysis is studied for a simply-supported viscoelastic column. The fluid-type four-parameter model is employed because of its general applicability to creep materials. Using the imperfection-based incremental approach, a nonlinear load deflection equation is derived. Safe load and critical (or life) time which characterize the stability of the viscoelastic column are obtained mathematically and interpreted physically. A finite difference algorithm is applied to solve the second-order differential equation of the viscoelastic stress-strain relation. Numerical calculation has been made and discussed far a SUS316 stainless steel column.

• Mycobiology
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• 제46권3호
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• pp.269-277
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• 2018

The production of water-soluble pigments by fungal strains indigenous to South Korea was investigated to find those that are highly productive in submerged culture. Among 113 candidates, 34 strains that colored the inoculated potato dextrose agar medium were selected. They were cultured in potato dextrose broth and extracted with ethanol. The productivity, functionality (radical-scavenging activities), and color information (CIELAB values) of the pigment extracts were measured. Five species produced intense yellowish pigments, and two produced intense reddish pigments that ranked the highest in terms of absorbance units produced per day. The pigment extracts of Penicillium miczynskii, Sanghuangporus baumii, Trichoderma sp. 1, and Trichoderma afroharzianum exhibited high radical-scavenging activity. However, the S. baumii extract showed moderate toxicity in the acute toxicity test, which limits the industrial application of this pigment. In conclusion, P. miczynskii KUC1721, Trichoderma sp. 1 KUC1716, and T. afroharzianum KUC21213 were the best fungal candidates to be industrial producers of safe, functional water-soluble pigments.

• Clinical and Experimental Pediatrics
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• 제55권9호
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• pp.309-315
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• 2012

Human respiratory syncytial virus (HRSV) is a major cause of severe respiratory tract illnesses in infants and young children worldwide. Despite its importance as a respiratory pathogen, there is currently no licensed vaccine for HRSV. Following failure of the initial trial of formalin-inactivated virus particle vaccine, continuous efforts have been made for the development of safe and efficacious vaccines against HRSV. However, several obstacles persist that delay the development of HRSV vaccine, such as the immature immune system of newborn infants and the possible Th2-biased immune responses leading to subsequent vaccine-enhanced diseases. Many HRSV vaccine strategies are currently being developed and evaluated, including live-attenuated viruses, subunit-based, and vector-based candidates. In this review, the current HRSV vaccines are overviewed and the safety issues regarding asthma and vaccine-induced pathology are discussed.

• 한국가구학회지
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• 제24권4호
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• pp.389-399
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• 2013

This study focuses a comparison of Korean and Western Furniture culture on traditional cupboard terms to make the people understand and distinguish the form of the various Korean and Western cupboard made by the craftsmanship before the industrial Revolution. As the result, the Korean cupboard shows Kangwon Chanjang/cupboard, Gyeonggi Chanjang/cupboard by the local name, dwiju Chanjang/cupboard, three-tiered Chanjang/cupboard, four-tired Chanjang/cupboard, two-tiered Chantak/cupboard, three-tiered Chantak/cupboard in the terms of the form. Korean cupboards are called Chanjang and Chantak. The Western cupboard shows cupboard, buffet, livery cupboard, cupboard-bed, corner cupboard, court cupboard, turkey-breast cupboard, pot cupboard, press, press cupboard, hall cupboard, sideboard, hunt sideboard, huntboard, cabinet, corner cabinet, writing cabinet, art cabinet, china cabinet, dresser, safe, meat safe, wall closet, wall cupboard, hanging corner cupboard, food cupboard in the terms of the various forms.