Chemical Bath Deposition 방법으로 제작한 CdSe 박마의 특성

신영진,홍광준,이상열,유상하,서상석,문종대,신현길,김택성,송정훈,유기수,정태수 한국센서학회 1993 센서학회지 Vol.2 No.1

Polycrystalline CdSe thin films were grown on ceramic substrate using a chemical bath deposition (CBD) method. They were annealed at various temperature and X-ray diffraction patterns were measured by X-ray diffractometer in order to study CdSe polycrystal structure. Using extrapolation method of X-ray diffraction patterns for the CdSe samples annealed in N₂ gas at 450℃ it was found hexagonal structure whose lattice parameters a_o and c_o were 4.302 A and 7.014 A, respectively. Its grain size was about 0.3 ㎛. Hall effect on this sample was measured by Van der Pauw method and studied on carrier density and mobility depending on temperature. From Hall data, the mobility was likely to be decreased by piezo electric scattering at temperature range of 33 K and 200 K, and by polar optical scattering at temperature range of 200 K and 293 K. We measured also spectral response, sensitivity (γ), maximum allowable power dissipation and response time on these samples.

HWE 방법에 의한 CdSe 박막 성장과 광전기적 특성

신영진,홍광준,이상열,유상하,서상석,문종대,김택성,정태수,신용진,이관교,김혜숙,정준우,정경아 한국센서학회 1997 센서학회지 Vol.6 No.4

The CdSe thin films were grown on the Si(100) wafers by a hot wall epitaxy method (HWE). The source and substrate temperature are 600� and 430 respectively. The crystalline structure of epilayers was investigated by double crystal X-ray diffraction(DCXD). Hall effect on the sample was measured by the van der Pauw method and studied on the carrier density and mobility dependence on temperature. From Hall data, the mobility was increased in the temperature range 30K to 150K by impurity scattering and decreased in the temperature range 150K to 293K by the lattice scattering. In order to explore the applicability as a photoconductive cell, we measured the sensitivity(γ), the ratio of photocurrent to darkcurrent(pc/dc), maximum allowable power dissipation(MAPD), spectral response and response time. The results indicated that the photoconductive characteristic were the best for the samples annealed in Cu vapor compare with in Cd, Se, air and vacuum vapour. Then we obtained the sensitivity of 0.99, the value of pc/dc of 1.39 X 10^7, the MAPD of 335mW, and the rise and decay time of l0ms and 9.5ms, respectively

광전도체의 CdS 단결정 성장과 물리적 특성

신영진,신현길,김택성,유기수,정태수,유평열,정철훈,이훈,신영신,홍관준 한국센서학회 1993 센서학회지 Vol.2 No.1

A CdS single crystal was grown by using sublimation method. Lattice constants, a_o and c_o, obtained by using extrapolation were 4.1318 Å and 6.7122 Å, respectively. The carrier density was ∼10^(23) m^(-3) and the mobility was 2.93X10^(-2) ㎡/V-sec from measured Hall data at room temperature. The mobility has a increasing tendency in proportion to T^½ from 33 K to 150 K and a decreasing tendency in proportion to T^(-2) from 180 K to room temperature. The short wavelength band peak measured from photocurrent was due to intrinsic transition, and the energy value of this peak was equal to the energy band gap of CdS photoconductor.

늑막조직생검으로 진단한 Pleural Paragonimiasis 1 예

김기영,이승환,박진현,이재갑,용석중,신계철,홍욱균,김향인,진춘조 대한내과학회 1991 대한내과학회지 Vol.40 No.5

We report a 28-year old female patient with pleural paragonimiasis who did not have the usual diagnostic triad for this parasitic disease. She did not have chronic hemoptysis, there were no pulmonary infiltrations, and stool, sputum and pleural fluid examinations did not yield paragonimus ova. The diagnosis was made on the basis of ova found in the pleural biopsy. Paragonimus pleural effusion was resolved with frequent thoracentesis and oral praziquantel therapy.

기관지내 전이암

김현수,이상수,오미희,이재갑,원구태,홍희승,용석중,신계철 대한내과학회 1991 대한내과학회지 Vol.40 No.4

The lung is the most common site of metastasis of extrapulmonary malignant tumor. According to past reports, metastatic cancer of the lung has been found in about 2% of all patients at autopsy. But these days, a diagnosis of endobronchial metastatic cancer utilizing bronchoscopy only is not easy. Thus we need other means of gathering more informaction, such as past history, discovery of other metastatic sites, and pathologic findings with special staining and electronmicroscope, especially in cases of poorly differentiated adenocarcinoma and epidermoid cancer, which are common types of primary lung cancer. We present 5 cases of endobronchial metastatic cancer. We found endobronchial metastatic cancer 2 cases of cervix cancer (epidermoid, adenocarcinoma), 1 case of colon cancer (adenocarcinoma), hypernephroma (renal cell carcinoma), and bladder cancer (transitional cell carcinoma). Since it was impossiole to diagnose the metastatic adenocarcinoma from the cervix only with lightmicroscopic findings, we could use past history and unusual radiologic and bronchoscopic findings which was thought to be the specific endoscopic finding of metastic endobronchial cancer. The interval between the diagnosis of the primary cancer and endobronchial metastatic cancer was 25.7 months. In the future, development of immunohistochemistry, monoclonal antibody, and molecular biologic techniques will give us diagnostic clue for differential diagnosis of metastatic endobronchial cancer from primary bronchogenic lung cancer.

급성 골수성 백혈병(M6)에 합병된 중추성 요붕증 1 예

김성연,조보연,이홍규,고창순,민헌기,김병국,김노경,신찬수,이명식,강덕현,조종태 대한내과학회 1989 대한내과학회지 Vol.37 No.2

Leukemia is known to be an extremely rare cause of diabetes insipidus. We report a case of diabetes insipidus as a complication of leukemia. An 18 year-old man was admitted because of polyuria polydipsia and fever. Bone marrow aspiration and biopsy revealed the diagnosis of acute erythroleukemia (AML, M6). On the water deprivation test, the diabetes insipidus was confirmed to be of the central type. He was managed with intranasal vasopressin for diabetes insipidus with good response. Induction chemotherapy was administered without response, and the patient died of septicemia and respiratory failure 2 months after initial diagnosis. A short review of the literature related to this subject is also presented.

운동후 측복통과 함께 발생한 급성 신부전 1 예

김종순,박영주,조종태,이정임,신민호,구천희,박태용,한승수,강진화 대한내과학회 1996 대한내과학회지 Vol.50 No.6

We report a case of acute renal failure with severe loin pain and patchy renal vasoconstriction after exercise. An immediate postcontrast computed tomogram of this case shows multiple patchy areas of poor contrast enhancement in the cortex of the both kidneys. A 24-hours delayed scan without further injection of contrast dye shows multiple wedge-shaped contrast enhancement in the coincident areas of poor enhancement in the immediate scan. The 2 and 5 days delayed scans show that wedge-shaped contrast enhancement becomes disappeared gradually to the renal cortex, and the 8 days delayed scan shows complete disappearance of contrast enhancement. The renal scintigrams with technetium-99m-methylene diphosphonate and dimercaptosuccinic acid show diffuse increased uptakes and multiple patchy photon deficient areas in the both kidneys respectively. The follow-up renal scintigrams show nearly normal findings, This patient had an uneventful hospital course and recovered completely without dialysis.

CBD 방법에 의한 CdS1-xSex 박마의 열처리에 따른 광전기적 특성

문종대,정태수,신현길,김택성,신영진,홍광준,유상하,서상석,최승평,이상열,신용진,이관교,김혜숙,윤은희,김승욱,전승룡 한국센서학회 1995 센서학회지 Vol.4 No.1

Polycrystalline CdS_(1-x)Se_x, thin films were grown on ceramic substrate using a chemical bath deposition method. They ere annealed at various temperature and X-ray diffraction patterns were measured by X-ray diffractometer in order to study CdS_(1-x)Se_x, polycrystal structure using extrapolation method of X-ray diffraction patterns for the CdS. CdSe samples annealed in gas at a 0 it was found hexagonal structure which had the lattice constant a_0=-4.1364Å, c_0=6.7129Å in CdS and a_0=4.3021Å, c_0=7.3021Å in CdSe. respectively. Hall effect on these samples was measured by Van der Pauw method and then studied on carrier density and mobility depending on temperature. We measured also spectral response, sensitivity(γ), maximum allowable power dissipation and response time on these samples.

Cd1-xZnzS 박막의 성장과 광전도 특성

문종대,정태수,신현길,김택성,이충일,홍광준,이상열,서상석,신용진,김혜숙,윤은희,김승욱,전승룡,유상하,이관교,박향숙,신영진 한국센서학회 1995 센서학회지 Vol.4 No.3

Polycrystalline Cd_(1-x)Zn_xS thin film were grown on slide glass(corning-2948) substrate using a chemical bath deposition (C.B.D) method. They were annealed at various temperature and X-ray diffraction patterns were measured by X-ray diffractometor in order to study Cd_(1-x)Zn_xS polycrystal structure using extrapolation method of X-ray diffraction patterns for the CdS, ZnS sample annealed in N₂ gas at 550 ℃. It was found hexagonal structure which had the lattice constant a_o = 4.1364Å, c_o=6.7129Å in CdS and a_o = 3.8062Å, c_o = 6.2681 Å in ZnS, respectively. Hall effect on these sample was measured by Van der Pauw method and then studied on carrier density and mobility depending on temperature. We measured also spectral response, sensitivity maximum allowable power dissipation and response time on these sample

남은 음식물 발효사료 첨가가 육계의 성장과 사료효율에 미치는 효과

신형태,정기환 한국영양사료학회 1999 韓國營養飼料學會誌 Vol.23 No.6

본 연구는 남은 음식물을 가축의 사료로 이용하기 위하여 50㎏ 용량의 발효장치에서 발효시킨 남은 음식물 발효사료를 시판 육계사료와 5%, 10% 및 15% 대체하여 육계의 중체량, 사료섭취량, 사료요구율 및 소화율에 미치는 효과를 조사하였다. 남은 음식물 발효사료의 사료적 가치를 조사하기 위하여 육계(♂)를 처리당 4 반복으로 반복당 10수씩 총 160수를 완전임의배치법으로 배치하여 생존율, 중체량, 사료섭취량, 사료요구율 및 소화율을 측정하였다. 남은 음식물의 조성분은 시료채취 시마다 변이가 심하여 15∼25%의 조단백질과 10∼25%의 조섬유가 함유되어 있었다. 남은 음식물의 발효 완숙도를 높이기 위한 발효조건은 수분 함량 60%, 온도 55℃ 및 C/N비율 30으로 하였으며, 제조된 남은 음식물 발효사료의 화학적 조성은 건물 88.47%, 조회분 12.95%, 조단백질 20.82%, 조섬유 13.62% 및 조지방 9.15%였다. 육계의 3주령에서 5주령 사이의 중체량(g)은 대조구와 남은 음식물 발효사료 5%, 10% 및 15% 대체구가 각각 958.1, 990.7, 1,015.7 및 971.0으로 5%와 10% 대체구가 대조구와 15% 대체구보다 높았으며(p<.05), 15% 대체구와 대조구간에는 차이가 없었다. 사료 섭취량을 대조구 5%, 10% 및 15% 대체구가 각각 1,914.7g 1,924.9g, 2,084.2g 및 2,076.6g으로 남은 음식물 발효사료 10% 대체구와 15% 대체구가 대조구와 5% 대체구보다 유의적으로 높았으며(p<.05), 사료 요구율은 각각 1.99, 1.94, 2.75 및 2.13으로 15% 대체구가 유의적으로 높았다(p<.05). 실험사료의 건물소화율(%)은 대조구와 5% 대체구가 각각 68.97과 67.63으로 10%와 15% 대체구의 64.26 및 63.96 보다 높았으며(p<.05), 유기물소화율(%)도 대조구와 5% 대체구가 각각 71.52와 71.12로 10%와 15% 대체구의 67.71 및 67.25 보다 높았다 (p<.05). This study was conducted to evaluate the feasibility of food waste as a feed resources by fermentation. Fermented food waste was used as a substitute of broiler feed to check the liveability, weight gain, feed consumption, feed conversion and digestibility. Three weeks old Abar Acre line 160 broilers were allocated four treatments : 40 broilers of each(4 replication × 10 broiler). The substitution level of fermehted food waste to commercial broiler feed were control, 0:100 treatment I, 5 : 95 ; treatment II, 10 : 90 ; treatment III, 15:85. The conditions of fermentation for making of fermented food waste and chemical composition, of fermented food waste were appeared to-follows : moisture contents, 60%; temperature, 55℃ and C/N ratio, 30 and dry matter, 88.47%, crude ash, 12.95%; crude protein, 20.82%; crude fiber, 13.62%; ether extract, 9.15%. The body weight of treatments I and II at 5 weeks was significantly higher than those of control and treatment III (p<.05) and weekly weight gain of treatments I, II and III at 3∼4 weeks was significantly higher than those of control (p<.05). Total feed consumption of treatments II and III was significantly higher than those of control and treatment I (p<.05) and weekly feed consumption of treatments II and III at 3∼4 weeks was significantly higher than those of control and treatment I (p<.05). Cummplative feed conversion of treatment III was significantly higher than those of rest group (p<.05) and weekly feed conversion of treatments II and III at 3∼4 weeks was significantly higher than those of control and treatment I (p<.05). Dry matter digestibility of control and treatment I was significantly higher than those of treatments II and III (p<.05) and organic matter digestibility was also higher in control and treatment I than those of treatments II and III (p<.05). The substitution level of fermented food waste to broiler feed was 5 to 10% according to the weight gain, feed intake and feed conversion in this experiment.