• Title/Summary/Keyword: Injection duration

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불면(不眠)환자에 대한 자하거(紫河車) 약침(藥針) 효능에 관한 연구 (A study on the effects of the Hominis placenta-induced injection on insomnia patient)

  • 윤형선;문장혁;정경숙;이정훈;백종엽;안호진
    • Journal of Acupuncture Research
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    • 제21권3호
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    • pp.99-105
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    • 2004
  • Objective : This study has been designed and performed to identify the effect on insomnia patients according to the injection of herbal medicine induced from the Hominis placenta. Methods : Injection on G20(風池), G20(池) in insomnia patients who were admitted in Dong-Seo Oriental Medical Hospital every day for 5days, without western medicine. Results: Total duration of sleeping time showed 0.68 hours of increased. (p<0.005 respectively)

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유전알고리즘을 이용한 디젤엔진의 연소최적화 기법에 대한 연구 (An Optimization Technique for Diesel Engine Combustion Using a Micro Genetic Algorithm)

  • 김동광;조남효;차순창;조순호
    • 한국자동차공학회논문집
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    • 제12권3호
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    • pp.51-58
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    • 2004
  • Optimization of engine desist and operation parameters using a genetic algorithm was demonstrated for direct injection diesel engine combustion. A micro genetic algorithm and a modified KIVA-3V code were used for the analysis and optimization of the engine combustion. At each generation of the optimization step the micro genetic algorithm generated five groups of parameter sets, and the five cases of KIVA-3V analysis were to be performed either in series or in parallel. The micro genetic algorithm code was also parallelized by using MPI programming, and a multi-CPU parallel supercomputer was used to speed up the optimization process by four times. An example case for a fixed engine speed was performed with six parameters of intake swirl ratio, compression ratio, fuel injection included angle, injector hole number, SOI, and injection duration. A simultaneous optimization technique for the whole range of engine speeds would be suggested for further studies.

2차 공기 공급 시스템을 채택한 촉매 변환기 내 냉 시동 구간 배기가스 해석 (Emission Analysis in Catalytic Converter Adopted Secondary Air Injection System for Cold Start Period)

  • 윤정의
    • 한국자동차공학회논문집
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    • 제18권6호
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    • pp.46-52
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    • 2010
  • In this paper, emission analysis during cold start period of CVS-75 mode in LPG vehicle was performed to find out proper operating conditions of SAI(Secondary Air Injection) system. In order to meet SULEV target, the simulated emission system had a SAI system as well as a MCC(Manifold Catalytic Converter) and a UCC(Under body Catalytic Converter). Using commercial 1-D code AMESIM, in which 7 step global surface chemical reactions of Langmuir-Hinshelwood type were adopted, transient emission analysis in the exhaust system during cold start period of CVS-75 mode were carried out to figure out the effects of flow rate, duration of supply air on HC, CO, NO emission.

Ultrasound Guided Transversus Abdominis Plane Block for Anterior Cutaneous Nerve Entrapment Syndrome

  • Sahoo, Rajendra Kumar;Nair, Abhijit S.
    • The Korean Journal of Pain
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    • 제28권4호
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    • pp.284-286
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    • 2015
  • Anterior cutaneous nerve entrapment syndrome (ACNES) is one the most common cause of chronic abdominal wall pain. The syndrome is mostly misdiagnosed, treated wrongly and inadequately. If diagnosed correctly by history, examination and a positive carnett test, the suffering of the patient can be relieved by addressing the cause i.e. local anaesthetic with steroid injection at the entrapment site. Conventionally, the injection is done by landmark technique. In this report, we have described 2 patients who were diagnosed with ACNES who were offered ultrasound guided transverses abdominis plane (TAP) injection who got significant pain relief for a long duration of time.

다수회 투여용 주사용액의 오염 -증류수와 푸로카인을 중심으로- (Contamination of Multiple Dobe Solutions for Injection distilled water and procaine)

  • 노유자;한윤복
    • 대한간호학회지
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    • 제5권1호
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    • pp.87-92
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    • 1975
  • This study was performed from July to December 1974 to investigate the rates of contamination of distilled water for injection and local anesthetics. 222 vials were sampled from 7 different places of St. Mary's Hospital The samples were cultured for isolation of microorganisms. The results were as follows; 1. Of 222 vials, 11 were Contaminated by 6 types: Staphylococcus epidermis, Bacillus subtilis, Mima polymorph a, Alcaligenes faecalis, Herellea vaginicala and pepto- streptococcus. 2. 5(9.1 %) of 55 vials from surgical wards, 2 (4.2 %) of 48 vials from surgical OPD, and 4 (12,l %) of 33 vials from pediatric wards were contaminated 3. Between rates of contamination of distilled water for injection and local anesthetics and the number of punctures, there was no significant relationship. (CR=1.42 P〉0.1) 4. There was no significant relationship (CR=1.02 P〉0.1) between the rates of contamination of vials and the duration of the first and the last punctures. 5. The ratios of contamination between 75% alcohol and 2% phenol used for disinfection of rubber lids of vials did not show significant difference.

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액상부탄 분사시스템의 수치시뮬레이션 및 분무특성 예측 (Simulation of Fuel Injection System and Model of Spray Behavior in Liquefied Butane)

  • 김종현;구자예
    • 한국분무공학회지
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    • 제3권2호
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    • pp.24-33
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    • 1998
  • The characteristics of liquefied butane spray are expected to be different from conventional diesel fuel spray, because a kind of flash boiling spray is expected when the back pressure is below the saturation vapor pressure of the butane(0.23MPa at $25^{\circ}C$). An accumulator type pintle injector and its fuel delivery system has been simulated in ruder to give injection pressure, needle lift and rate of fuel injected. The governing equation were solved by finite difference metho. The injection duration was controlled by solenoid valve. Spray behaviors such as a transient spray tip penetration, spray angle and SMD were calculated based on the empirical correlations in case that the back pressure is both above the vapor pressure of the butane and below that of butane. When the back preassure is below the vapor pressure of the fuel, conventional correlation is modified to represent the effect of flash boiling.

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산조인초(酸棗仁炒) 약침(藥鍼)의 불면치료(不眠治療)에 대(對)한 임상연구(臨床硏究) (A clinical study of Sanjoincho-induced injection on insomia patients)

  • 이재혁;백종엽;정형섭;박상동
    • 동의신경정신과학회지
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    • 제11권2호
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    • pp.79-86
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    • 2000
  • This study has been designed and performed to identify the effect on insomnia patients according to th injection of herbal medicine induced from Sanjoincho.The result of the injection shows as follows.1. Total duration of sleeping time showed 1.1500${\pm}$1.5433 hours of increase. (p〈0.01, respectively)2. Delaying time before the onset of sleep showed 0.8158${\pm}$1.3251 hours of increase in sleep onset insomnia(p〈0.05, respectively)3. The wake times showed 1.375${\pm}$1.4079 times of decrease in sleep maintenance isomnia. (p〈0.05, respectively)

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나노 패턴의 전사성 향상을 위한 고온 기체 분사를 이용한 금형 표면의 가열 기법 (Surface Heating Method Using Hot Jet Impingement for Improving Transcription of Nano-Pattern)

  • 김경하;유영은;제태진;최두선;김선경
    • 소성∙가공
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    • 제16권1호
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    • pp.9-14
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    • 2007
  • In this paper, a mold temperature control method for injection molding is proposed. The inner surface of mold is locally heated by jet impingement to improve pattern transcription. Heating by hot jet is completed while the mold is open. An experimental system that realizes the proposed idea has been built, which includes mold, nozzle assembly and heater. Actual injection molding process including the proposed heating procedure has been conducted to verify the validity of the method. The process has been done for several conditions with different jet temperatures and duration of heating. The results from different conditions are compared.

디젤기관의 연소와 배출물에 관한 연구 (A study on Combustion and Exhaust Emission of Diesel Engine)

  • 조진호;김형섭;박정률
    • 오토저널
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    • 제13권5호
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    • pp.81-88
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    • 1991
  • Combustion characteristic, concentration of NOx and exhaust smoke opacity was experimentally tested, according to fuel injection timing, mixing ratio of water and methanol for the driving condition of 2000 rpm of engine revolution and constant load(7.5kg/cm$^{2}$) using emulsified fuel of gas oil-water methanol. The result obtained was as following. Thermal efficiency indicated highly 0.4-2.7% for emulsified fuel then gas oil, and injection timing when maximum thermal efficiency, slicily risen then gas oil. For constant fuel injection timing ignition lag was increased, combustion duration decreased, maximum heat release rate indicated high, and concentration of NOx and exhaust smoke opacity is decreased, as function of water and methanol content y was higher.

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