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경상남도 일부 농촌지역의 간흡충 감염에 대한 역학적 연구
주영희,오진경,공현주,손운목,김윤규,김정일,정갑열,신해림,Ju, Young-Hee,Oh, Jin-Kyoung,Kong, Hyun-Joo,Sohn, Woon-Mok,Kim, Yoon-Gyu,Kim, Jung-Il,Jung, Kap-Yeol,Shin, Hai-Rim 대한예방의학회 2005 Journal of Preventive Medicine and Public Health Vol.38 No.4
Objectives : To investigate the prevalence of Clonorchis Sinensis infestation and to determine the associated risk factors among a population in a part of the rural area of Gyeongsangnam-do, Korea, which is an area known to have a high mortality from liver cancer and a high infection of C. sinensis. Methods : The study populat ion consisted of those people who have lived in rural areas and who were over 40 years old. This study was performed in 5 areas during the period from 1999 to 200 3. Informed consents were obtained from the 2,381 study participants, and these people were interviewed about their life style habits with using the structured questionnaire that was administered by trained staff members. The subjects underwent blood sampling and their stool specimens were examined by using the Formalin-ether sedimentation technique. Results : Among the study subjects (N=2,381), the positivity for C. sinensis in the stool was 34.4% (95% CI=36.3-42.5); it was 39.4% (95% CI=36.3-42.5) in the males and 30.9% (95% CI=28.5-33.3) in the females . The positivity for C. sinensis was associated with current alcohol drinking (odds ratio=1.8, 95% CI: 1.5-2.1) and raw fish consumption (odds ratio 1.2, 95% CI: 0.9-1.6). Conclusion : The present study confirmed the high prevalence of C. sinensis in the study subjects. It is necessary to establish consistent medical management and education programs for the treatment and prevention of C. sinensis infestation in the rural inhabitants of Korea.
주영희,홍기형,Joo Young-Hee,Hong Ki-Hyung 대한음성학회 2005 말소리 Vol.55 No.-
In this paper, we propose an XML based meta-data specification for industrial speech databases. Building speech databases is very time-consuming and expensive. Recently, by the government supports, huge amount of speech corpus has been collected as speech databases. However, the formats and meta-data for speech databases are different depending on the constructing institutions. In order to advance the reusability and portability of speech databases, a standard representation scheme should be adopted by all speech database construction institutions. ETRI proposed a XML based annotation scheme [51 for speech databases, but the scheme has too simple and flat modeling structure, and may cause duplicated information. In order to overcome such disadvantages in this previous scheme, we first define the speech database more formally and then identify object appearing in speech databases. We then design the data model for speech databases in an object-oriented way. Based on the designed data model, we develop the meta-data specification for industrial speech databases.
Development of Swine Waste-water Treatment System for A Small Farm
주영희,료 타츠카와,Joo, Yeong-Hee,Tatsukawa, Ryo 한국토양비료학회 1993 한국토양비료학회지 Vol.26 No.2
혐기성소화조(嫌氣性消化槽), 간이살수여상(簡易撒水濾床), 저류조(貯溜槽)로 구성(構成)된 폐수처리시설(廢水處理施設)을 개발(開發)하여 소규모(小規模) 양돈농가(養豚農家)(사육두수(飼育頭數):200두(頭))에서 1년간(年間)에 걸쳐 시험운전(試驗運轉)했던 바 그 결과(結果)는 다음과 같았다. 1. 양돈(養豚) 폐기물(廢棄物) 발생량(發生量)은 고형폐기물(固形廢棄物)이 2.8kg/두(頭)/일(日), 폐수(廢水)는 $7.4{\ell}$/두(頭)/일(日)이었다. 2. 돼지 BOD발생량(發生量)은 207g/두(頭)/일(日)이였으며 이중 81%는 돈분(豚糞)과 사료(飼料)찌꺼기 및 깔짚 등(等)이 혼합(混合)된 고형폐기물(固形廢棄物)에서, 나머지 19%는 요(尿)와 축사세척수등(畜舍洗滌水等)이 혼합(混合)된 양돈폐수(養豚廢水)에서 유래(由來)되었다. 3. 혐기성소화조(嫌氣性消化槽), 간이살수여상(簡易撒水濾床) 및 저류조시설(貯溜槽施設)을 통한 양돈폐수(養豚廢水)의 처리(處理)로는 BOD 99%, T-N 78%, T-P 74%를 각각(各各) 감소(減少)시킬 수 있었으며 최종(最終) 배출수(排出水)의 수질(水質)은 BOD가 $52mg/{\ell}$, T-N, $213mg/{\ell}$ 및 T-P는 $28mg/{\ell}$이였다. 4. 이상(以上)의 결과(結果)로 보아 본(本) 폐수처리시설(廢水處理施設)은 폐수중(廢水中) BOD 농도(濃度)를 낮추는 측면(側面)에서 실용화(實用化)가 가능(可能)한 것으로 사료(思料)된다. A newly developed waste-water treatment system for small scale piggery wastes through a demonstration trial at a farm. The results are summarized as follows. 1. The amount of piggery wastes produced was 10.2kg/head/day, which consisted of 2.8kg solid wastes and $7.41{\ell}$ fluid wastes. 2. The unit BOD discharge from piggery wastes was 207g/head/day, among which 81 percent was originated from solid waste and 19 percent from fluid waste. 3. After the treatment of the waste-water through the system, BOD, total N and total P were lowered by 99, 78, 74 percent, respectively : the BOD, total N and total P in the final effluent were $52mg/{\ell}$, $213mg/{\ell}$ and $28mg/{\ell}$, respectively. 4. The results of the trials suggested that the system could be recommended for the practical use at the farms.
BCl<sub>3</sub>/He 유도결합 플라즈마를 이용한 TiN 박막의 식각 특성
주영희,우종창,김창일,Joo, Young-Hee,Woo, Jong-Chang,Kim, Chang-Il 한국전기전자재료학회 2012 전기전자재료학회논문지 Vol.25 No.9
We investigated the dry etching characteristics of TiN in $TiN/Al_2O_3$ gate stack using a inductively coupled plasma system. TiN thin film is etched by BCl3/He plasma. The etching parameters are the gas mixing ratio, the RF power, the DC-bias voltages and process pressures. The highest etch rate is in $BCl_3/He$ (25%:75%) plasma. The selectivity of TiN thin film to $Al_2O_3$ is pretty similar with $BCl_3/He$ plasma. The chemical reactions of the etched TiN thin films are investigated by X-ray photoelectron spectroscopy. The intensities of the Ti 2p and the N 1s peaks are modified by $BCl_3$ plasma. Intensity and binding energy of Ti and N could be changed due to a chemical reaction on the surface of TiN thin films. Also we investigated that the non-volatile byproducts such as $TiCl_x$ formed by chemical reaction with Cl radicals on the surface of TiN thin films.
김성필,주영희,Kim, Sung-Pil,Joo, Yeong-Hee 한국토양비료학회 1990 한국토양비료학회지 Vol.23 No.2
지렁이에 의(依)한 우분(牛糞)의 속성퇴비화방법 규명을 위하여 우분(牛糞)단일구, 우분(牛糞)+지렁이, 우분(牛糞)(50)+메탄발효(醱酵)스럿지(50)+지렁이로 처리(處理)하여 pH, C/N비(比), 환원당률(還元糖率), 미생물상(微生物相), Bacillus sp.의 수(數), 항균력(抗菌力) 검정(檢定)을 7일 간격으로 4회 실시(實施)한 결과는 다음과 같다. 1. 지렁이 사양(飼養)으로 우분(牛糞)의 pH를 상승(上昇)시키나 메탄발효(醱酵) 스럿지를 첨가했을때는 저하시켰다. 2. C/N비(比) 및 환원당률(還元糖率)이 우분(牛糞)단일구(區)에서는 9.67%, 12.01%, 지렁이 사양구(飼養區)는 40.89~41.90% 및 37.05~37.50%로 감소되었다. 3. 세균수(細菌數)는 우분(牛糞)단일구(區)는 14일(日)까지 증가(增加)하다 그 후 감소(減少)하나 지렁이사양구(飼養區)는 28일(日)까지 계속 증가되는 경향이 있다. 4. Bacillus sp. 수(數)는 일반토양(一般土壤)에 비(比)해 지렁이분(糞)에서 월등히 많았다. 5. 항생물질(抗生物質)인 Chloram phenicol의 Fusarium oxysporum에 대한 Inhibition zones diameter가 36.3mm인데 비(比)하여 지렁이분(糞)에서 분리한 Bacillus sp. 7의 Inhibition zones diameter는 22mm였다. This study was carried out to evaluate the possibllity of composting from cow manure using earthworms. In order to rear earthworms safely and control moisture soil was used as conditioner. Fusarium oxysporum and Fusarium sp.1 were isolated from soil and two isolates of Bacillus sp. were selected as antagonists from earthworm casts. By rearing earthworm, C/N ratio was reduced by 40.9% and 41.9% after 28 days, reducing sugar was also decreased by 37.1% and 37.5%. On the other hand, reduction of C/N ratio in cow manure alone was 9.67% and reducing sugar was 12.01%, respectively. Bacillus sp. was apparently increased in earthworm casts than in ordinary soil. It seemed that the earthworm casts contained antibiotic subatance.
고밀도 플라즈마를 이용한 SnO<sub>2</sub> 박막의 건식 식각 특성
김환준,주영희,김승한,우종창,김창일,Kim, Hwan-Jun,Joo, Young-Hee,Kim, Seung-Han,Woo, Jong-Chang,Kim, Chang-Il 한국전기전자재료학회 2013 전기전자재료학회논문지 Vol.26 No.11
In this paper, we carried out the investigations of both etch characteristics and mechanisms for the $SnO_2$ thin films in $O_2/BCl_3/Ar$ plasma. The dry etching characteristics of the $SnO_2$ thin films was studied by varying the $O_2/BCl_3/Ar$ gas mixing ratio. We determined the optimized process conditions that were as follows: a RF power of 700 W, a DC-bias voltage of - 150 V, and a process pressure of 2 Pa. The maximum etch rate was 509.9 nm/min in $O_2/BCl_3/Ar$=(3:4:16 sccm) plasma. From XPS analysis, the etch mechanism of the $SnO_2$ thin films in the $O_2/BCl_3/Ar$ plasma can be identified as the ion-assisted chemical reaction while the role of ion bombardment includes the destruction of the metal-oxide bonds as well as the cleaning of the etched surface form the reaction products.
유도 결합 플라즈마를 이용한 TaN 박막의 건식 식각 특성
진려,주영희,우종창,김한수,최경록,김창일,Li, Chen,Joo, Young-Hee,Woo, Jong-Chang,Kim, Han-Soo,Choi, Kyung-Rok,Kim, Chang-Il 한국전기전자재료학회 2013 전기전자재료학회논문지 Vol.26 No.1
In this paper, we investigated the etching characteristics of the TaN thin films and the surface reaction of TaN thin films after etching process. The etching characteristics of the TaN thin films were carried out using inductively coupled plasma (ICP). The etch rate and the selectivity of TaN to $SiO_2$ and TaN to PR were measured by varying the gas mixing ratio, RF power, DC-bias voltage, and process pressure in CF-based plasma. The surface reaction of TaN thin films were determined by x-ray photoelectron spectroscopy (XPS).