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 Results : Compared to the normal control group, the mean scores with regard to the withdrawn, social problems, attention problems, delinquent behavior, aggressive behavior, externalizing problems and total problems profiles were significantly higher in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.

羊毛/폴리에스테르 混紡織物의 굽힘 모우먼트 緩和特性

김석근 嶺南大學校 工業技術硏究所 1993 工業技術硏究所論文集 Vol.21 No.1

The bending moment relaxation behavior of wool and wool/polyester blended fabrics under conditions of changing water content was investigated. Bending moment relaxation curve was linear with the logarism of time. Between the rate of bending moment relaxation and blend ratio of fabrics, steep linear relationship was observed at wet state, but no obvious relationship existed at dry state.

PSPICE를 이용한 수정된 Chua회로의 카오스 통신 시뮬레이션

김성곤,배준호,호인석,최희주,변건식 東亞大學校 附設 情報通信硏究所 1999 情報通信硏究所論文誌 Vol.7 No.1

Recently, there has been much interest in utilizing chaotic circuits to implement a secure communication. Although Chua's circuit is the simplest chaotic circuit, it has complex chaotic dynamic porperties. The modified Chua's circuit has two additional components more than Chua's cirecuit and makes the circuit equations become fore-dimensional instead of three-dimensional, it makes Chua's circuit more flexible. In this paper, we use two modified Chua's oscillators to simulation on the chaos control and synchronizaion. The simulation results show that the modified Chua's oscillator has good chaotic control and sunchronization. And we have successfully carried out the basic esperiment on the chaotic secure communication.

綿 平編布의 칫수特性에 관한 硏究

金碩根,崔在佑 嶺南大學校 工業技術硏究所 1991 연구보고 Vol.19 No.1

The dimensional properties of the plain knitted cotton fabrics which were changed at various loop length and various relaxed state have been studied. The fully relaxed state of plain knitted fabric was arrived at after 2hrs of wetting out at 70℃ and additional 2hrs of tumble drying at 70℃. In this state K? value was 27 and the area of fabric were shrank by 25% for short loop length, 26% for standard loop length and 40% for long loop length, compared to the area of dry relaxed fabric. With proceeding of relaxation, the thickness and weight per unit area were increased, but the thickness was increased and the weight per unit area was decreased with loop length.

불소의 국소도포에 의한 백서 치아 무기이온 용출 억제효과

김동응,송근배,윤희숙 慶北大學校 齒科大學 1990 慶北齒大論文集 Vol.7 No.2

In order to determine the inhibitory effects by topical fluorides on dissolution of inorganic ions, 2% NaF, 10% SnF_2 and 1.23% APF gel were topically applied to the incisors of rat for two to four times. The collected incisors were decalcified with 5ml of acetic acid buffer solutions(pH 4.5)for 30min. and dissolved inorganic ions(Ca & P) were measured with atomic absorption spectrophotometer and U-V spectrophotometer. The results obtained were as follows; Two times and four times application groups of APF, SnF_2 and NaF were superior to control group(F=9.0325, p<0.01) in inhibitory effect of dissolving calcium ions, but four times application groups had no statistically significant difference(F=1.8700, p>0.05). The inhibitory effect of dissolving phosphrus appeared more effective in APF, SnF_2 and NaF groups than control group, but had no statistically significant difference both two and four times topical fluoride application group(p>0.05). In comparing of calcium dissolution, fluoride application groups were more effective than nonfluoride group. It was significantly different in two times application groups (p<0.01), but had no significantly difference in four times application groups (p>0.05). The same result was obtained in the inhibitory effect of the phosphrus dissolution.

정상 성인에서 Amitriptyline이 REM 수면에 미치는 영향

김태범,왕성근,신석철 대한생물치료정신의학회 1995 생물치료정신의학 Vol.1 No.2

To investigate the effects of amitriptyline on REM sleep in normal adults, author applied polysomnography of sleep structure to the volunteer before and after administration of amitriptyline 25㎎. The subjects were 8 healthy young adults, aged from 20 to 24 years old. The results were summarized as follows. 1. Compaired with the baseline, the decrease of the absolute value of REM sleep, the decrease of total REM sleep period and duration, the increase of REM sleep interval occured in amitriptyline administration night. 2. Compaired with the baseline, the increase of the absolute value and the relative of REM sleep, the increase of total REM sleep duration, the decrease of REM sleep latency occured in the first recovery night. 3. Compaired with the baseline, the increase of the relative value of REM sleep, the increase of REM sleep efficiency occured in the second recovery night. 4. In amitriptyline administration night, REM sleep supression effect of amitriptyline occured and in the first and in the first and the second recovery night, rebound phenomenon of REM sleep occured. 5. REM sleep supression effect of amitriptyline occured in totally each REM period time rather in specific sequential REM period, but rebound phenomenon of REM sleep markedly occured in the first REM period in first recovery night.

Priming 처리종자의 저장기간에 따른 발아력 전당함량 및 α-amylase 활력

김재현,이석순,박성태,정명근 한국국제농업개발학회 2002 韓國國際農業開發學會誌 Vol.14 No.3

벼 종자의 priming처리 후 저장성을 검토하기 위하여 저장기간과 저장온도에 따라서 종자의 발아력과 저장양분 및 발아에 관여하는 주요 효소활력의 변화를 조사한 결과를 요약하면 다음과 같다. 1. Priming한 종자를 6개월간 저장하여도 어느 저장온도에서나 발아율의 차이가 없었다. 2. Priming한 종자에서 발아속도(T_50)가 2∼3일 빨랐으며 3개월 동안은 변화가 없었고 3개월 이후 발아속도가 약간 감소하였으나 priming 처리하지 않은 종자에 비해서 빨랐다. 3. 발아균일도는 priming 처리효과가 6개월간 계속 유지되었으며 25℃보다 저온인 17℃에서 효과가 더 크게 나타났다. 4. α-amylase 활력은 저장기간이 길수록 높았고 전당함량의 경우 3개월 이상 저장하였을때 감소하였으나 발아력에는 영향을 미치지 않았다. 5. 종자 수확후 6개월 동안은 어느 시기에 priming 처리하여 저장하여도 발아력 및 종자의 활력은 유지되었다. This experiment was carried out to determine changes of seed germination ability, total sugar, and α-amylase activity to different storage period, and temperature after seed priming treatment. In the storage during the six months, final germination rate and speed were similar to the untreated control seeds and the uniformity was continuously preserved. Germination speed(T_50) was faster than the control seeds by 2∼3 days. T_50 was a little decreased to priming effect after three months but faster than the control seeds. In the case of germination temperature 25℃, germination uniformity was decreased to long term storage periods. Total sugar content was increased to compare with the control seed during the one months at -10, 5 and 20℃ and total sugar content was decreased after two months. α-amylase activity was increased to storage of long term period and seed of storage temperature 5℃ was increased compared with -10 and 20℃. Germination ability and α-amylase activity was preserved continuously during six months after priming treatment.

TiC 被覆한 SiC纖維(Nicalon)의 알루미늄 基地에 對한 適合性

金錫胤,南勝義,金政根 弘益大學校 1983 弘大論叢 Vol.15 No.2

The interaction between SiC fiber and coated aluminum layer of commercially available SiC fiber vacuum-deposited by aluminum was studied at temperatures between room temperature and 700℃. In order to suppress the reaction between the SiC fiber and aluminum layer, thermodynamically stale TiC was precoated on the SiC fiber by activated reactive evaporation process prior to aluminum coating and the compatibility of TiC coated SiC fiber with aluminum have been investigated. Then the interaction of the SiC fiber and the coated aluminum layer was also studied between room temperature and 700℃. The fiber coating with TiC is ecpected to be effective for fabricating a sound composite in this system. The fiber coating with TiC is expected to be effective for fabricating a sound composite in this system. The wettability between SiC fiber and liquid aluminum was improved by the TiC coating. Aluminum coated SiC fiber heated at 650℃ was black and brittle, while no black and brittle was TiC and aluminum coated SiC fiber heated at the same temperaturer. It was, therefore, concluded that the TiC pre-coating on the SiC fiber was effective in suppressing the interation of the SiC fiber and the coated aluminum layer.

MgB₄O7 熱螢光體의 특성과 低에너지 X線의 線量測定

김영국,손인호,설정식,채건식,노경석 慶南大學校 附設 基礎科學硏究所 1997 硏究論文集 Vol.11 No.-

To develope the thermoluminescent radiation sensors and low energy X-ray of dosimetry. The TL phosphors of MgB₄O7 are prepared and their physical characteristics are investigated. MgB₄O7 : Tb. Tm. Dy. La. Ho. and Nd phosphors have been prepared by sintering around 580℃ for 2 hours followed by flowing Ar gas. Ar gas. Activation energy and kinetic order of main peak of glow curve were studied by two methods peak shape method and initial rise method. By these methods, the estimated activation energies were 0.76±0.02eV(Tb doped). 0.94±0.03(Tm doped). 0.72±0.02 (Dy doped). respectively. The activation energy frequency factor and kinetic order of thermoluminescent process for each TL phosphors are measured by analyzing the glow curve by initial rise. peak shape. different heating rate. isothermal decay method. And The emission spectra of TL phosphors are also measured. The TL phosphors prepared in this work may be utilized to radiation sensor elements becaue of their high sensitivity to low energy X-ray.

천의 Handle 形容에 관한 考察

金碩根 嶺南大學校 工業技術硏究所 1974 연구보고 Vol.2 No.1

The handle or feel is one of the important qualities of fabric. Specialists or experts in textile industry use various technical terms to evaluate the fabric feelings. It is important to study the relation between the physical properties and the handle of fabrics. But it is more important to describe sensory properties exactly and unify resembling terms so as to avoid misuse and confusion. In this paper several studies on the handle of fabrics and conducted The Matsuo's theory looks like to be considerably reasonable and well arranged. But some problems to figure out the physical properties about shearing behavier of fabric must be dissolved.