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金恩植,김영선,趙學勇 國民大學校 山林科學硏究所 2004 山林科學 Vol.16 No.-
最近 우리나라에서 問題가 되고 있는 黃砂現狀과 그것의 原因이 되고 있는 中國地域 의 沙漠化現狀과 그 硏究史에 대한 生態學的인 考察을 함과 아울러 그에 대한 對應策에 대해서 論議하였다. 沙漠化와 黃砂問題가 發生하는 機作을 提示하고, 그에 대한 對應方案을 論議하였다. Ecological review was carried out to the issues of desertification and Asian Dusts Phenomenon, which are becoming serious recent days in the region of Northeast Asia and discussion was extended to the measures for the issues. The inherent mechanism leading to the desertification and concurrent Asian Dusts Phenomenon and counter measures for the phenomena were suggested.
Xue Zhao,Ruina Ma,An Du,Yinan Zhang,Xue Zhao,Yongzhe Fan,Xiaoming Cao 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2019 NANO Vol.14 No.7
The charge recombination caused by surface defects limits photovoltaic properties of quantum dot-sensitized solar cells (QDSSCs), which can be suppressed by modifying organic or inorganic molecules and atomic ligands. In this paper, octa-aminopropyl polyhedral oligomeric silsesquioxane (OA-POSS) connected and modified near-infrared absorption CdSeTe quantum dots (QDs) through coupling agent (1-ethyl-3-3-dimethylaminopropyl carbodiimide hydrochloride). The results suggest that OA-POSS reduces the surface defects of CdSeTe QDs and suppresses charge recombination. Therefore, the power conversion efficiency improves nearly 41%, which increases from 2.00% to 2.82%.
A Measurement Method for Dispersion in Optical Fiber Communication with Long Distance
Xue-zhao Zheng 보안공학연구지원센터 2014 International Journal of Future Generation Communi Vol.7 No.6
With the development of the telecommunication, optical fiber has been widely used. It has the characteristics of long distance transmission and large capacity, but it also has dispersion exists. The dispersion can be divided into some types. Mode dispersion plays a major role in multimode fiber, while chromatic dispersion or intramodal dispersion are the main mechanism in single mode fiber. Generally, it is quite important to test the dispersion and know the dispersion characteristics. The theoretical basis and experimental device, which are both based on the interference principle, have been introduced in detail. The device is used to measure the fiber dispersion characteristics of optical fiber and the results shows the validity of the theory and the designed test device.
벼 이앙재배에서 유기질 복합비료 시용이 잡초억제와 벼 생육환경에 미치는 영향
Xue-Hua An,Xue-Ping Zhao,이상복(Sang-Bok Lee),임일빈(Il-Bin Im),Wen-Hao An 韓國雜草學會 2010 Weed&Turfgrass Science Vol.30 No.3
본 연구는 유기질 복합비료가 벼 재배 논에서 잡초 및 벼 생육에 미치는 영향을 파악하기 위하여 수행되었다. 실내 검정 시험에서 유기질 복합비료를 125-250㎏ 10a-1 처리시 이앙벼는 지상부가 10.3~27.2% 증가하였고, 피는 50.3-89.2%의 출현이 억제되었으며, 사마귀풀은 낮은 처리량에서도 높은 감수성을 보였다, 유기질 복합비료는 피, 물달개비, 사마귀풀에 대하여 담수심(1-5㎝)이 깊을수록 높게 억제하였으나, 올방개와 같은 사초과 잡초에 대해서는 억제 효과가 나타나지 않았다. 또 20-35℃의 비교적 높은 온도에서 피와 물달개비는 각각 75.4~92.2%, 49.5~81.6%의 높은 출현억제율을 나타냈다. 유기질 복합비료 시용 10일 후 낙수 시 피와 물달개비는 각각 33.7%, 23.0%의 출현억제율을 나타내었다. 포장시험에서 시험 후 토양의 유기물은 관행구애서 유기질 복합비료 시용구보다 약간 낮게 나타났다. 벼의 생육은 초장 및 경수가 관행구 대비 적었으며 그 차이는 생육후기에 더 많이 나타났고, 벼의 수량은 관행구 대비 4% 감소하였다. 논잡초 억제 효과는 유기질 복합비료 시용구에서 60.5%로 관행구 보다 낮게 나타났다. The effects of organic-compound fertilizer on weed control and rice growth in the transplanting rice cultivation were researched in this article. The results showed that the growth of transplanted rice was promoted (the increased rate was 10.3 - 27.2 %), but the plant number for Echinochloa crus-galli was controlled (the inhibition rate was 50.3~89.2%), besides, small amount of organic-compound fertilizer in controlling Aneilema keisak was highly effective when the transplanted rice was treated with 125~250 ㎏ 10a-1 organic-compound fertilizer. Moreover, E. crus-galli, Monochoria vaginalis and A. keisak were inhibited largely by increasing the water depth (1~5 ㎝), whereas Eleocharis kuroguwai and other sedges weeds were not effected by water depth. Compared with the temperature of 20~35℃, the plant occurrence of E. crus-galli and M. vaginalis at high temperature was inhibited (the inhibition rate were 75.4 -92.2% and 49.5% - 81.6%, respectively). When the transplanted rice was treated with the above organic-compound fertilizer after 10day, the inhibition rate of plant occurrence for E. crus-galli and M. vaginalis was 33.7% and 23.3%, respectively. Similarly, in the later period of rice growth, the plant height and the numbers of tiller grew slowly in conventional soil in comparison with the soil treated with organic-compound fertilizer. It has been found that the rice yield in experimental soil was decreased by 4%. This result in the field experiment showed that organic material contents in conventional soil were lower than that in soil which used the organic-compound fertilizer. Weed control in experimental soil showed 60.5% lower effects than that in conventional soil.
Xue-Lian Zhao,Shang-Ying Hu,Qian Zhang,Li Dong,Rui-Mei Feng,Ross Han,Fang-Hui Zhao 대한부인종양학회 2017 Journal of Gynecologic Oncology Vol.28 No.4
Objective: To explore the genotype distribution of high-risk human papillomavirus (HR-HPV) and its attribution to different grades of cervical lesions in rural China, which will contribute to type-specific HPV screening tests and the development of new polyvalent HPV vaccines among the Chinese population. Methods: One thousand two hundred ninety-two subjects were followed based on the Shanxi Province Cervical Cancer Screening Study I (SPOCCS-I), and screened by HPV DNA testing (hybrid capture® 2 [HC2]), liquid-based cytology (LBC), and if necessary, directed or random colposcopy-guided quadrant biopsies. HPV genotyping with linear inverse probe hybridization (SPF10-PCR-LiPA) was performed in HC2 positive specimens. Attribution of specific HR-HPV type to different grades of cervical lesions was estimated using a fractional contribution approach. Results: After excluding incomplete data, 1,274 women were included in the final statistical analysis. Fifteen point two percent (194/1,274) of women were HR-HPV positive for any of 13 HR-HPV types (HPV16, 18, 31, 33, 35, 39, 45, 51, 52, 56, 58, 59, and 68) and the most common HR-HPV types were HPV16 (19.1%) and HPV52 (16.5%). The genotypes most frequently detected in HR-HPV-positive cervical intraepithelial neoplasia grade 1 (CIN1) were HPV52 (24.1%), HPV31 (20.7%), HPV16 (13.8%), HPV33 (13.8%), HPV39 (10.3%), and HPV56 (10.3%); in HR-HPV-positive cervical intraepithelial neoplasia grade 2 or worse (CIN2+): HPV16 (53.1%), HPV58 (15.6%), HPV33 (12.5%), HPV51 (9.4%), and HPV52 (6.3%). HPV52, 31, 16, 33, 39, and 56 together contributed to 89.7% of HR-HPV-positive CIN1, and HPV16, 33, 58, 51, and 52 together contributed to 87.5% of CIN2+. Conclusion: In summary, we found substantial differences in prevalence and attribution of CINs between different oncogenic HPV types in a rural Chinese population, especially for HPV16, 31, 33, 52, and 58. These differences may be relevant for both clinical management and the design of preventive strategies.
Expression and Clinical Significance of STAT3, P-STAT3, and VEGF-C in Small Cell Lung Cancer
Zhao, Xue,Sun, Xian,Li, Xiao-Li Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.6
Objective: To determine STAT3, P-STAT3, and VEGF-C expression levels in small cell lung cancers (SCLCs), and discuss their role and clinical significance in SCLC development. Method: Immunohistochemical methods were applied to 128 cases of SCLC and 40 cases of adjacent normal tissue. Results: The expression levels of STAT3, P-STAT3, and VEGF-C were higher in SCLC than in normal tissue (P<0.05). Pairwise comparisons showed positive correlations with lymph node metastasis, clinical stage, and tumor size (P<0.05). The expression levels were also related with the overall survival rates. Conclusion: STAT3 and VEGF-C play important roles in the development of SCLC, and might be expected to become new targets for SCLC treatment.
Xue-Jun Zhao,Zhong-Peng Li,Jun-Hong Wang,Xiang-Ming Xing,Zhenyong Wang,Lin Wang,Zhong-Hua Wang 대한수의학회 2015 Journal of Veterinary Science Vol.16 No.4
To evaluate the effects of chelated Zn/Cu/Mn on redox status, immune responses and hoof health in lactating Holstein cows, 48 head in early lactation were divided into healthy or lame groups according to their gait score. Cows were fed the same amount of Zn/Cu/Mn as sulfate salts or in chelated forms for 180 days, and foot-and-mouth disease (FMD) vaccine was injected at day 90. The results showed that lame cows had lower antioxidant function, serum Zn/Mn levels, hair Cu levels, and hoof hardness. Moreover, increased antioxidant status, FMD antibody titers, serum and hair levels of Zn/Cu/Mn, and hoof hardness and decreased milk fat percent and arthritis biomarkers were observed in cows fed chelated Zn/Cu/Mn. In summary, supplementation with chelated Zn/Cu/Mn improved antioxidant status and immune responses, reduced arthritis biomarkers, and increased accumulation of Zn/Cu/Mn in the body and hoof hardness in dairy cows.