Glass 용해로 공정의 안정화 검증 및 방안에 관한 연구

조진형,구자활 금오공과대학교 2006 論文集 Vol.27 No.-

As tools to improve productivity and quality, SPC(statistical process control) and Af'Ctautomatic process control) are used in the instrumental process. In process, we know that a statistical control-in is identified with a process of random variables being independently and identically distributedriid). It IS often difficult in practice to attain a statistical control-in because of systematic time series effects like autocorrelation. When the data are autocorrelated In a process, as the diagnosis, we can use ARIMA procedure. In this thesis, a procedure is introduced to diagnose and identify a statistical control-in/out using ARIMA.

栽培年數에 따르는 人蔘精油量

金愛子,金英順,李榮子(B),李明淑 梨花女子大學校 藥學硏究所 1961 梨花藥學硏究 Vol.- No.2

大麥 및 白米 混合粉의 營養價値 硏究 : 第1報 보리의 搗精收率에 따른 營養價値 比較 硏究 Ⅰ. A Study on Some Nutritional Effects of Milling Recovery of Barley by Rats

辛炯泰,金永玉,具明子 成均館大學校 科學技術硏究所 1983 論文集 Vol.34 No.2

This experiment was conducted to observe the nutritional effects of milling recovery of barley (MRB) on the performance and digestibility by rats. Experiment was undertaken with 48 weanling male rats of Sprague-Dawley strain and they were evenly divided by 6 treatments, respectively, and feed and clean water were available, ad. libitum. In this experiment, the diets were consisted of corn starch+casein as control diet, 100%, 90%, 80%, 70% and 60% of MRB diet as experimental diets. For the experimental period, body weight gain(g), feed intake(g), feed efficiency ratio, protein efficiency ratio and digestibility (dry matter, organic matter, crude protein ; %) were measured to evaluate the nutritional effects of MRB diets for rats. The results which were obtained with this experiment as follows: 1. Average daily gain for 90%, and 100% MRB was 0.42g and for 70% MRB was 0.04g. And the differences between 80%, 90% and 100% MRB treatments and 70% and 60% MRB were significantly different(p<0.01). 2. Average daily feed intake was lower for 70% MRB of 3.41g and to increase the level of MRB tended to improve the feed intake, which followed the same pattern as the growth data. 3. Feed efficiency ratio was lower for 70% MBR of 0.01 and protein efficiency ratio was lower for 70% MRB of 0.15. 4. The range of dry matter digestibility was from 92.81% to 93.18%, organic matter digestibility was from 93.17% to 93.63% and protein digestibility was from 80.22% to 65.96% in 90%, 80%, 70% and 60% MRB, respectively. But there were no significant differences in dry matter, organic matter or protein digestibilities of experimental diets(p>0.01). And the digestibilities of dry matter, organic matter and crude protein for 100% MRB were significantly different compared with other treatments (p<0.01). So it may be concluded that 90% MRB would be the most nutritious processing method on the basis of feed intake, daily gain and protein metabolism by rats.

기관내 삽관 후 발생한 기관 괴사와 협착증 : 증례보고 A case report

권진형,구자욱,유시현 순천향의학연구소 2004 Journal of Soonchunhyang Medical Science Vol.10 No.2

Tracheal necrosis and stenosis are rare complications of prolonged endotracheal intubation. A 62 years old female was performed cerebral aneurysmal neck clipping under general anesthesia via endotracheal intubation and transferred to the 12th intensive care unit. The patient was mechanically ventilated and tracheostomy was done on the postoperative day. Necrotic tissue, pus and stenosis were found around the ballooning site of the trachea. T-tube insertion was done on the both postoperative day and the patient was discharged on the 80th postoperative day.

TiAIN을 코팅한 WC공구의 절삭성능에 관한 연구

김현자,최현철,김영대,김일선,노태영,이규용 釜慶大學校 2001 釜慶大學校 論文集 Vol.6 No.-

Thin film of TiAlN was deposited onto ISO P20 tungsten carbide cutting insert tip substrate specimen using the FVAS (filtered vacuum arc system) at the substrate temperature of 80℃. Cutting and wear tests have been performed to the TiAlN coated and uncoated WC specimen, respectively under the same cutting conditions for the comparison. Cutting forces and tool wear of coated and uncoated carbide cutting tools were investigated by means of cutting length and cutting forces. Also tool wear and tool life were analyzed using the 3ch tool dynamometer amp lifier and oscilloscope. In this study cutting tests for the cutting performance of TiAlN coated WC-Co P20 to the steel alloy of SNCN420 have been curried out. Through the comparisons of cutting forces during the cutting tests and tool wear, we got the conclusions as follows.; ① In usual cutting conditions, main cutting force component showed higher value than the thrust force normal to the cutting direction especially cutting forces in the of early stage on cutting tests. But, after loosing the protective hard thin film on substrate or insert tip, the thrust force normal to the cutting direction showed much higher than main cutting force component. ② Within the range of 0.3㎜ build up edge in P20 insert tip, TiAlN coated tip was evaluated more stable in flank wear and less in crater wear than the uncoated specimen. ③ Through the wear growth curve of the specimen, tool life differences of uncoated and TiAlN coated tip at high speed (V=250[m/min]) was higher than the low speed(V=200[m/min]) case, compared to the average but the tool wear was almost same in both specimen for the case of normal wear occurred.

建築設備工事의 施工性 向上에 관한 硏究 : 설비전담부서의 설치 필요성을 중심으로

조형근,구자두 호남대학교 1998 호남대학교 학술논문집 Vol.19 No.2

Recently construction has become large in scale, high, complex, diverse, and professional, and its consumers demand improved quality in living environments, design and construction in building services must improve in precision. However, quite often people who carry out building services works do not prepare design documents, and poor construction with defects occur in construction site many times. To address this matter, I have conducted a questionnaire survey with students in Honam Construction Engineering Education Center and officers and students in Army Engineering School for this study. The survey is about causes of poor construction that are requirement of employing specialist of building services, setup of a service department related with the matter. After the collected guestionaire data divided according to the kinds of major business and qualification educational background work experiences, the requirements of setup of a department exclusively responsible for building services and employment of relative specialists are analyzed. Base on the above results, to suggest basic methodology of constructability improvement of building services works.

眞空中의 Grease의 중요한 潤滑 特性

金享資,白基英 釜山工業大學校 1985 論文集 Vol.27 No.-

Lubrication properties of four kinds of grease and PTFE in sliding friction were examined in detail in vacuum (10??P??-1.3×10??P??). Frictional specimens were made of stainless steel(SUS304) and their contact surface were finished by emery paper. The amount of grease supplied at the interface was changed in various degrees, and the change of frictional force was observed in sliding process. The coefficient of friction was low(μ 0.15) at the early stage of sliding in general but it increased suddenly after a certain sliding distance which was called the critical sliding distance. The critical sliding distance was small at low pressure (1.3×10??Pa) and was large at high pressure (10??Pa) . It decreased rapidly as the normal load increased. The critical sliding distance increased very sensitively at a certain amount of grease supplied.

母兒의 早期接觸이 母의 愛着行爲에 미치는 影響에 관한 硏究

李滋衡,金眞香 梨花女子大學校 韓國生活科學硏究院 1981 韓國生活科學硏究院 論叢 Vol.28 No.-

모아의 조기 접촉이 어머니의 애착행위에 미치는 영향을 알아보기 위해 분만후 부터 퇴원시 까지 신생아와 육체적 접촉이 없었던 산모와 분만후 24시간내에 의도적으로 첫접촉을 시도한후 퇴원시 재접촉한 산모사이에 신생아에 대한 애착행위의 양상을 확인하였다. 1. 동일시 행동에서는 아기상태와 상태의 변화에 대해 재접촉한 산모의 반응이 높았다(P<0.01). 2. 상호작용의 양상은 시각적 접촉과 피부 접촉시 재접촉한 산모에게서 보다 진전된 반응이 나타났다(P<0.01). 3. 돌보는 행동은 재접촉한 산모들이 신생아의 요구를 확인할 수 있고, 퇴원을 위한 준비가 잘되어 있었다(P<0.01). The purpose of this study was to investigate the significance of maternal infant attachment with an emphasis upon the physical contact between a other and an infant during 24 hours of the postpartum period. Interest in this early postpartal experience was stemmed from our experience as a nurse with the newly delivered mothers and their infants. The usual postpartal care routine requires that the mother be separated from her infant. Early physical contact might have different effects between the two groups of mothers in the following three areas: 1. Identifying behaviors: Verbal statements about the infant's condition amd awareness of the changes (P<0.01). 2. Modalities of the interaction: Stimulation of the infant to open eyes (P<0.01). and fingertip touch, palm touch and touches of the baby's body(P<0.01). 3. Caretaking behaviors: Recognition of the infant's needs (P<0.05) and preparation for the infant's discharge (P<0.01).

建築設備工事의 施工性 向上에 관한 硏究(Ⅱ) : Focued on the Changes and Prior Coodinate 설계변경 또는 공사변경 및 이에 따른 사전협의를 중심으로

具滋斗,趙炯權 호남대학교 산업기술연구소 1999 산업기술연구논문집 Vol.7 No.-

건축물의 규모가 대형화, 고층화, 복잡화됨에 따라 건축설비공사의 중요성은 점차 증대되고 있다. 이에 본 연구에서는 건축설비공사와 관련된 설계변경 또는 공사변경 및 이에 대한 사전협의에 관한 설문조사를 실시하여 주력사업별과 자격 및 경력별로의 분석을 통해 건축설비공사의 시공성 향상을 증진하는 기초자료를 제공하고자 한다. Recently construction has become large in scale, high, complex, diverse, and professional, design and construction in building services must improve in precision. However, quite often people who carry out building services works do not prepare design documents, and poor construction with defects occur in construction site many times. To address this matter, I have conducted a questionnaire survey for this study. After the collected guestionaire data divided according to the kinds of major business and qualification educational background work experiences, the changes and prior coodinate in the design and construction of building services works are analyzed. Base on the above results, to suggest basic methodology of constructability improvement of building services work.

순화슬러지와 생슬러지로 본 질산염제거특성

조순자,정용주,이나은,이정은,손형식,이상준 부산대학교 환경문제연구소 2003 環境硏究報 Vol.21 No.-

Using acclimated sludge with inorganic nitrogen medium for three months and non-acclimated sludge, raw sludge, under aerobic condition we investigated characteristics biological nitrogen removal. As results, e acclimated sludge under aerobic condition accomplished nitrification efficiently. But the samples from the reactor operated raw sludge had higher ammonium concentration rather than the concentration which was loaded by the medium. This means when we are trying to reorganize existing facilities, we should take high initial ammonium concentration into account.