스마트폰 부재와 분실을 대비한 어플리케이션

조시현;문상수;김기환;도민균;서재현;김태공 인제대학교 2012 仁濟論叢 Vol.27 No.1

Recently, as the Smart Phone is rapidly disseminated worldwide, it is emerging as an important digital communication media changing the communication types of users. We use the Smart Phone in all aspect of daily life besides communication. The Smart Phone is indispensible tool that has a great ripple effect on our daily life. Therefore, if the Smart Phone users lose or do not bring their phones, they were troubled. In this paper, we make users available to use the Smart Phone, even if they lose or do not bring their phones. To do this end, we develop features that search the phone in case of not knowing where it is, that contact another phone in case of not bringing their phone, that lock the phone in case of losing it. We expect these features promote a expansion and a vitality of the Smart Phone market.

등속성 운동에 따른 투기종목 선수들의 대퇴근 기능과 혈중 효소수준의 변화

조현철,권양기 又石大學校 1998 論文集 Vol.20 No.-

The purpose of this study was to analyze for changes of muscle function and enzyme level of match athletics according to maximum muscle endurance exercise Subjects were 5 Judo player, 5 tae kwon do player and 5 wrestling player of P.E high school. They were measured and evaluated the strength and the muscular power of 60°/sec work speed and muscular endurance of 240°/sec work speed after 75time(extension/flexion exercise) between each set. The finding of this study were as follows: 1. Peak torque strength and balance ratio at the lower work speed 60o/sec was no significant difference among the group. 2. Mean power during extension exercise at work speed of 240°/sec showed significantly(p〈.05) high(67.6watts) at Judo group after two set. Flexion exercise showed significantly(p〈.05) high(77.0watts) at Judo group after one set. Total work during extension exercise showed significantly(p〈.01) high(2535.7Jo ules) at wrestling group after two set, flexion exercise showed significantly(p〈.05) high during one set(3229.8 Joules) and two set(1996.0 Joules) at Judo group. Muscular fatigue ratio showed significantly(p〈.01) low(34.1%) at one set during extension exercise in Tae kwon do group. During flexion exercise showed signif icantly (p〈.05) low(60.6%) after one set in wrestling group. 3. Variation of serum CPK, LDH level of wrestling group was no significant diff among the group. However, Variation of GOT level showed significantly(p〈.05) low in judo group. Within the scope of this study, for the advancement of ability to compete: First, the training of athletes to develope muscular strength, power, and endurance should be aimed at the peak torque improvement and balanced development of muscular strength for hamstring strength power in match players: second, anaerobic power improvement through the interval training should be preceded for the de-velopment of muscular endurance.

Silibinin Inhibits Tumor Growth through Downregulation of Extracellular Signal-Regulated Kinase and Akt <i>in Vitro</i> and <i>in Vivo</i> in Human Ovarian Cancer Cells

Cho, Hyun Jin,Suh, Dong Soo,Moon, Soo Hyeon,Song, Yong Jung,Yoon, Man Soo,Park, Do Yoon,Choi, Kyung Un,Kim, Yong Keun,Kim, Ki Hyung American Chemical Society 2013 Journal of agricultural and food chemistry Vol.61 No.17

<P>Anticancer activity of silibinin, a flavonoid, has been demonstrated in various cancer cell types. However, the underlying mechanisms were not elucidated in human ovarian cancer cells. The present study was undertaken to examine the effect of silibinin <I>in vitro</I> and <I>in vivo</I> on tumor growth in human ovarian cancer cells. Silibinin decreased cell viability in a dose- and time-dependent manner. Silibinin caused an increase in reactive oxygen species (ROS) generation, and the silibinin-induced cell death was prevented by the antioxidant <I>N</I>-acetylcysteine (NAC). Western blot analysis showed silibinin-induced downregulation of extracellular signal-regulated kinase (ERK) and Akt. Transfection of constitutively active forms of MEK and Akt prevented the silibinin-induced cell death. Oral administration of silibinin in animals with subcutaneous A2780 cells reduced tumor volume. Subsequent tumor tissue analysis showed that silibinin treatment induced a decrease in Ki-67-positive cells, an increase in transferase-mediated dUTP nick end labeling (TUNEL)-positive cells, activation of caspase-3, and inhibition of p-ERK and p-Akt. These results indicate that silibinin reduces tumor growth through inhibition of ERK and Akt in human ovarian cancer cells. These data suggest that silibinin may serve as a potential therapeutic agent for human ovarian cancers.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/jafcau/2013/jafcau.2013.61.issue-17/jf400192v/production/images/medium/jf-2013-00192v_0008.gif'></P>

Latex Modified Concsdrete 교면공법을 이용한 포장공법의 Life Cycle Cost 분석

조효남,최현호,정평기,이상윤 漢陽大學校 工學技術硏究所 2001 工學技術論文集 Vol.10 No.-

라텍스 개질 콘크리트(Latex Modified Concrete : 이하 LMC라 약칭함)는 방수성, 동결성 등에서 뛰어난 재료이기 때문에 과거 35년 전부터 전 세계적으로 널리 이용되고 있는 포장재료이다. 그러나 아직 국내에서는 고가의 초기공사비 부담으로 인하여 시공실적이 전무한 실정이다. 따라서, 본 연구에서는 현재 우리나라에서 초기도입단계에 있는 라텍스 개질 콘크리트 교면 포장공법을 위한 LCC 분석 절차 및 사용자비용 모델을 제안하고자 하였고, 이러한 절차 및 모델에 기초하여 실제 대상교량의 포장공사에 적용하여 LMC의 LCC 측면에서의 비용 절감효과를 정량적으로 조사하고자 한다. Latex Modified Concrete(LMC) has been widely used for the pavement of highway bridges over the past 35years around the world since it is more resistant to the intrusion of chloride ions, has higher tensile, compressive, and flexural strength, and has greater freeze-thaw resistance. However, in Korea, it has not been introduced to fields due to higher initial construction cost for its overlay than conventional pavement materials. Due to durable characteristics, it should be noted that the LMC may be more cost-effective than conventional pavements such as asphalt pavement considering life-cycle cost(LCC) concept. The objective of this study is intended to suggest a practical LCC analysis model for pavement projects and to demonstrate relative cost-effectiveness of the LMC overlays in comparison with conventional pavement techniques. It may be stated that the procedure proposed in this study may be utilized for making optimal decision on cost-effective pavement design.

만성 화농성 중이염의 세균학적 고찰

조남순,이영훈,강기훈,최제환,송태현,이병돈,장혁순,강주원,김연준 순천향의학연구소;Soonchunhyang Medical Research Institute 2000 Journal of Soonchunhyang Medical Science Vol.6 No.1

Background and Objectives : Chronic suppurative otitis media is one of the frequent diseases in otolaryngologic field. It is important to choose of antibiotics in the management of infectious disease. But the organisms in infections have been changed and resistance to antibiotics has been grown as the development of antibiotics has been achieved. And so it has been necessary to recognize the changes of organisms and resistance in antibiotics. Our study was performed to identify the pathogens isolated from discharges in chronic otitis media and evaluate the antibiotic agents, to recognize the change of to resistance to·antibiotic agents and to use the appropriate anitiotics. Materials and Methods : Retrospectively, authors reviewed the backeriologic study of 114 cases of chronic suppurative otitis media who visited the Department of Otolaryngology, Soonchunhyang University in Seoul from Nov. 1996 to Oct. 1999 and analyzed 101 strains and its sensitivity test to various antibiotics. Result : In 93 cases in which pathogenic organism was isolated, single infection was 85 cases(91.4%) and mixed infection was 8 cases(8.6%). The most frequent pathogenic organism was Staphylococcus aureus(59.4%), Pseudomonas aeruginosa(13.9%), Providencia(4.8%), Alcaligenes(3.0%) and Streptococcus pneumoniae(2.9%) were the next. Methicilline-Resistance Staphylococcus aureus was 34 cases(57.6%) of Staphylococcus aureus. Staphylococcus aureus was sensitive to Vancomycin(96.7%), Trimethoprim-Sulfamethoxazole (57.6%), Cefuroxime(42.4%) and Ciprofloxacin(40.7%) but resistant to Penicillin(94.9%). Pseudomonas aeruginosa was sentitive Amikacin(100%), Ciprofloxacin(100%) and Gentamicin(67%). Conclusion : As MRSA recently was wide spread in community accquired infection as well as nosocomial infection, we must consider strict control of MRSA.

파킨슨씨병에서 Selegiline HCI (MAO-B^(�))의 효과 및 안전성

조기현,김명규,김태선,김병채,이승한,황인용,김준태,김종기 全南大醫大 2000 전남의대학술지 Vol.36 No.2

야뇨증 환아들의 심리사회적 특성에 대한 다기관 연구 : 행동 및 정서 문제를 중심으로

조수철,김재원,신민섭,황준원,한상원,박관현,이상돈,김경도,김건석,서홍진,이유식,정재용,김영균,문두건,남궁미경,한창희,조원열,김영식,배기수,이종국,정우영,신의진 大韓神經精神醫學會 2005 신경정신의학 Vol.44 No.6

Objectives : The aim of this study was to examine the behavioral and emotional problems associated with nocturnal enuresis in Korean children. Methods : Three hundred eighteen children with nocturnal enuresis, together with their parents, completed the Child Behavior Checklist (CBCL), Disruptive Behavior Disorder Scale according to DSM-IV (DBDS), Children's Depression Inventory (CDI), State-Trait Anxiety Inventory for Children (STAIC), and Piers-Harris Children's Self-Concept Scale (PHCSC). Ninety-three normal students were selected as the control group. Results : Compared to the normal control group, the mean scores with regard to the withdrawn, social problems, attention problems, delinquent behavior, aggressive behavior, externalizing problems and total problems profiles were significantly higher in the nocturnal enuresis group according to the CBCL results. The nocturnal enuresis group also scored significantly higher in the ADHD and ODD profiles of the DBDS. The nocturnal enuresis group was more depressed and anxious than the control group according to the results of the CDI and STAI. The mean score of the PHCSC was significantly lower in the nocturnal enuresis group when compared to the normal control group. Conclusion : The results of this study suggest that children with nocturnal enuresis in Korea have clinically relevant behavioral and emotional problems. The findings support the link between nocturnal enuresis and psychopathology in Korean children.

날록손으로 유발된 비아편계 통각감소 : 중뇌수도 주변 회백질 배측 (dorsal-PAG) 전해질 손상효과 Effect of Dorsal-Periaqueductal Gray Lesion

조소현,서미숙,김기석 한국심리학회 한국심리학회지 생물 및 생리 Vol.5 No.1

날록손과 열자극을 배쌍지어 제시하면 통증에 대한 민감성이 감소한다. 날록손으로 유발된 통각감소는 날록손이 사전에 처치되었음에도 불구하고 발생되었다는 점에서 특성상 비아편계가 매개하는 통각감소라 할 수 있다. 본 연구에서는 날록손과 열자극의 배쌍에 의해 유발된 비아편계 통각감소에 책임이 있는 뇌영역이 어디인지를 알아보고자 하였다. 실험장치로서는 열판 장치를 사용하였고 열자극은 53±0.5℃로 하였다. 통증에 대한 민감성 지표로서는 뒷발을 핥기까지의 잠재기를 측정하였다. 실험결과, 모의시술집단은 훈련시에 발생된 통각감소율이 검사시에도 계속 유지된 반면 중뇌수도 주변 회백질 배측부분이 손상된 실험집단은 훈련시 발생된 통각감소율이 훈련전의 기저선 수준으로 환원되었다. 이러한 결과는 중뇌수도 주변 회백질 배측부분이 날록손과 열자극의 배쌍으로 유발된 비아편계 통각감소에 책임이 있는 뇌 부위임을 시사해준다고 하겠다. Animals exposed to the naloxone-heat pairings reduced their sensitivity to the pain. Naloxone-induced analgesia may be, in nature, non-opioid in that was found in the rat pretreated with naloxone. The present study was conducted to examine the area which is the responsible for the analesia induced by naloxone-heat pairings. Hot-plate apparatus which was thermoregulated automatically at 53±0.5℃ was used for heat stimulus. The latencies for hind-paw lick was recorded as an index of pain sensitivity. The result of present experiment was as follows. Sham operated rats were maintained analgesia which developed in the training phase but, analgesia developed in the rats which belongs to the experimental group in the training phase was reduced to the baseline level after dorsal periaqueductal lesion. This result suggest that dorsal-periaqueductal gray is responsible for the analgesia induced by naloxone.

연마 다듬질 가공면의 표면 미세형상 평가에 관한 연구

조남규,김현국,권기환,한창수,안유민,이성환,박균명 한국공작기계학회 2000 한국공작기계학회 추계학술대회논문집 Vol.2000 No.-

This paper describes the statistical analysis techniques for the surface roughness assessment of polished surfaces. In experiments, the polishing process of the sample surfaces which are manufactured by ball end mill is consist of two steps; the cusp removal process and the surface finishing process. For the cusp removal process, the criterion of cusp removal was established from the power spectrum analysis to assess the change of the cusp removal rate. For the finishing process, the surface was polished by the rotational CBN tool and vibration wood tool. And the surface quality of polished surface was assessed using the functional parameters based on the statistical values of surface profiles. Consequently, the surface finish performance of the polished surface using the vibration wood tool was improved.

주파수특성을 고려한 직선배열 점음원에 의한 최적지향성합성

조기량,이정현 麗水水産大學校 産業技術硏究所 1995 産業基術硏究所 論文集 Vol.4 No.-

A numerical simulation is carried out on the optimal directivity synthesis considerated frequency character by point source array. Optimal algorithm DFP(Davidon Fletcher Powell) method is practiced by means of an iterative scheme. Desired directivity set for a beam width 21 degree and side lobe level-30dB. For the desired directivity, the directivity of the point source array considerating frequency approaches to iteration advances and the reasonable agreement is achived. Numerical simulations are carried out by using personal computer(CPU:80486DX2, RAM 16MByte).