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이호수,정유진,김은호,성낙창,이영형 동아대학교 환경문제연구소 1998 硏究報告 Vol.21 No.2
The technology of removing phosphorous, considered as one of the most important control nutrients causing eutrophication in various water bodies, have been investigated by many researchers. Recently, phosphorous crystallization process is emerging as a new technology for phosphorous removal. In this study, waste oyster shells which can be easily obtained from the ocean, were used as a seed crystal, and their effects of several physical/chemical factors on the phosphorous removal efficiencies were examined by batch tests. Ca^(2+) and pH affected phosphorous crystallization process using waste oyster shells. As alkalinity of wastewater increased, phosphorous removal efficiencies gradually decreased. Phosphorous removal efficiencies were increased, as specific area and contact efficiency per unit area of waste oyster shells were increased. In case of high temperature, phosphorous crystallization process was rapidly advanced and phosphorous removal efficiencies were increased. Depending on X-ray diffraction analysis, it was showed that generation materials extracted from the surface of waste oyster shells with short reaction time were dominated by CaHPO₄ ·2H₂O, but progressed to Ca_(5)(OH)(PO₄)₃.
김은호,성낙창,김수생,김국태,이영형 동아대학교 환경문제연구소 1998 硏究報告 Vol.21 No.1
Dyeing has always had a pressing need for techniques that allow economical pretreatment for color removal in wastewater. The effectiveness of adsorption for color removal from dyeing wastwater has made it an ideal alternative to other expensive treatment options. This study deals with an investigation on four waste resources locally available in dyeing wastewater treatment for color removal. Peat, bentonite, slag and fly ash were utilized for this study and their performance evaluated against that of granular activated carbon. Color of dyeing wastewater was high removed in peat, bentonite and slag except for fly ash. In point of recycling, if waste resources substituted for a valuable adsorbent such as granular activated carbon, peat, bentonite and slag could look forward to an expected economical effect.
멕시코와 네팔도입 고추 유전자원의 두 가지 점무늬병에 대한 저항성
조은형,김정훈,전수경,이지선,김병수 慶北大學校 農業科學技術硏究所 2005 慶北大農學誌 Vol.23 No.-
Pepper genetic resources consisting of introductions from Mexico and Nepal and susceptible and resistant controls were tested for resistance to gray leaf spot and to bacterial spot by serially inoculating the two disease pathogens, Stemphylium spp. first and Xanthomonas campestris pv. vesicatoria next, with application of fungicide after evaluation of resistance to gray leaf spot first. KC866, KC872, KC902, KC905 were resistant to gray leaf spot in addition to known resistance sources, KC43, KC47, KC220, KC319, KC320, KC380. KC897 was on the top of the resistance sources list, even better than KC177(163192), and was followed by KC889, KC896, KC898, all of which were introductions from Nepal.
진공증착중합법에 의해 제조된 PMDA / 4,4'-DDE 폴리이미드의 내열 특성
김형권,이은학,우호환,김종석,이덕출 (사단법인)韓國火災 ·消防學會 1996 한국화재소방학회논문지 Vol.10 No.3
The Polyimide thin films based on PMDA and 4,4'-DDE were fabricated by VDPM, and their heat resistance characteristics were invastigated by TGA(Thermogaravimetry Analyzer). It was found that deposition rate decreased with increasing substrate temperature and the thin films were not fabricated over the substrate temperature of 70℃. T_TG of 5% weight loss temperature is 565℃, 397℃ and 210℃ at the substrate temperature of 20℃, 40℃ and 70℃, respectively. It is realized that the endurace temperature for 20,000 hour of thin films fabricated at 20℃ and 40℃ is 230℃ and 200℃, respectively.
韓國産 紅花子와 中國産 紅花子가 鎭痛 , 消炎 및 關節炎에 미치는 效果
서부일,이은숙,박지하,김상찬,변부형,최호영 대한본초학회 2001 大韓本草學會誌 Vol.16 No.1
This experimental study was done to compare the efficacy of Korean and Chinese Carthami Semen on analgesic effect and remedy of inflammation and arthritis. The results were as follows; 1. In analgesic action on the writhing syndrome in mice induced by 0.7% acetic acid, Korean and Chinese Carthami Semen extract group showed significant decrease in comparison with control group. And in analgesic action on the writhing syndrome in mice induced by Acetylcholine HC1, Korean and chinese Carthami Semen extract group showed significant decrease in comparison with control group. 2. In Anti-inflammatory effects, Chinese Carthami Semen extract group showed significant decrease at 150 and 180 minutes after inducing paw-edema in comparison with control group. 3. In the method of adjuvant arthritis, orally administered for 21 days, Korean Carthami Semen extract group showed significant inhibition of the hind paw edema after 1 day and 21 days. Whereas Chinese Carthami Semen extract group showed some reduction, but the results didn's show significant decrease. 4. In the level of leucocytes count, Korean and Chinese Carthami Semen extract group showed significant decrease in comparison with control group. And in the level of total protein. CRP and glucose, Korean and Chinese Carthami Semen extract group didn't showed significant change in comparison with control group.
人蔘이 卵巢摘出로 誘發된 흰쥐의 骨多孔症 예방에 미치는 효능
정국영,서부일,이은숙,변부형,신순식,박지하 대한본초학회 2004 大韓本草學會誌 Vol.19 No.1
Objectives : The present study has been undertaken to investigate the effects of Ginseng Radix on prevention of osteoporosis in ovariectomized rats. Methods : In this experiment, the rats were ovariectomized. Rats were administered by 2 kinds of medicine, Estradiol, Ginseng Radix. The levels of bone mineral density, osteocalcin, ALP, phosphorus, calcium in serum, deoxypyridinoline in urine, calcium, phosphorus, ash weight of bone, body weight and uterus weight were measured. Results : The levels of spinal bone mineral density was significantly increased in comparison with OVX group at 8 weeks in Ginseng Radix group. The levels of serum didn t show significant change in comparison with OVX group in Ginseng Radix group. The levels of urine deoxypyridinoline showed significant decrease in comparison with OVX group in Ginseng Radix group. The levels of femoral and fibula-tibial ash weight didn t show significant increase in comparison with OVX group in Ginseng Radix group. The levels of femoral and fibula-tibial calcium showed significant increase in comparison with OVX group in Ginseng Radix group. The levels of femoral and fibula-tibial phosphorus showed significant increase in comparison with OVX group in Ginseng Radix group. The levels of body weight didn t show significant changes in comparison with OVX group in Ginseng Radix group. The levels of uterus weight didn t show significant changes in comparison with OVX group in Ginseng Radix group. Conclusions : Reviewing these experimetal results, it appears that Ginseng Radix have efficacy on prevention of osteoporosis. And further study should be conducted to illustrate in depth the curing and prevention of osteoprosis.
Frontal Dysfunction Underlies Depressive Syndrome in Alzheimer Disease: A FDG-PET Study
Lee, Dong Young,Choo, Il Han,Jhoo, Jin Hyeong,Kim, Ki Woong,Youn, Jong Choul,Lee, Dong Su,Kang, Eun Joo,Lee, Jae Sung,Kang, Won Jun,Woo, Jong In Elsevier 2006 The American journal of geriatric psychiatry Vol.14 No.7
<P>OBJECTIVE: This study aimed to investigate the regional cerebral dysfunction associated with depressive syndrome in patients with Alzheimer disease (AD). METHOD: Twelve patients with AD with depressive syndrome (ADD) and 12 age-, gender-, and severity-matched patients with AD without depressive syndrome (ADND) underwent FDG-PET scanning. The regional cerebral glucose metabolism in the two groups was compared using a voxel-based method. RESULTS: The ADD group showed lower glucose metabolism in the right superior frontal gyrus than the ADND group. CONCLUSIONS: These results indicate that frontal dysfunction, known to be associated with primary or other secondary depressive syndromes, underlies the depressive syndrome of patients with AD patients as well.</P>
Case Reports : 2 Cases of a Benign Pulmonary Metastasizing Leiomyoma
Eun Joo Lee,Hye Cheol Jeong,Sung Yong Lee,Je Hyeong Kim,Sang Yeub Lee,Chol Shin,Jae Jeong Shim,Kwang Ho In,Kyung Ho Kang,Se Hwa Yoo,Sang Hoon Lee,Han Kyeom Kim,Yu Whan Oh 대한결핵 및 호흡기학회 2009 Tuberculosis and Respiratory Diseases Vol.67 No.6
A benign pulmonary metastasizing leiomyoma is a recognized clinical entity that has been infrequently reported in the medical literature. We report two cases of a benign pulmonary metastasizing leiomyoma. A 35-year-old woman who underwent myomectomy and a cesarean section approximately 6 years earlier visited our hospital for further evaluation of incidentally revealed multiple lung nodules. A diagnostic percutaneuous biopsy was performed. Finally she was diagnosed with a benign metastasizing leiomyoma. The patient then received LH-RH and has been followed up since. The other 44-year-old woman presented after an initial radiology evaluation revealed the presence of multiple, small-sized lung nodules. She underwent a right middle lung wedge resection to confirm the diagnosis. Finally she diagnosed with a benign metastasizing leiomyoma. The multiple lung nodules have been followed up closely.