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회수수에 처리되는 당류계 안정화제의 혼입률 변화가 콘크리트의 품질에 미치는 영향
文學龍,金虎林,우종완,한민철,한천구 대한건축학회 2004 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.24 No.1(구조계)
The objective of present paper is to investigate the engineering properties of concrete using recycling water incorporating saccharic based stabilizing agent in order to improve qualities of concrete in the region of normal strength and high strength. According to test results, fluidity and air content do not exhibit significant difference with an increase in stabilizing agent contents. Bleeding was not observed at 30% of W Ie, regardless of stabilizing agent contents, nonetheless, concrete with stabilizing agent of 0.15% was observed to occur the least bleeding at 40 and 50% of W IC. For setting time, although presence of recycled water accelerates setting time, setting time shows to be retarded gradually with an increase in stabilizing agent content. For compressive strength, use of stabilizing agent enhanced compressive strength of concrete compared with that of concrete without stabilizing agent. In the side of strength enhancement, adequate dosage of stabilizing agent is found to be 0.15%. As dosage of stabilizing agent increased above 0.15%, drying shrinkage exhibited a tendency to decrease.
Research and Implementation of Android Embedded Code Generation Method based on Rule Model
Wen Hu,Kai Zhang 보안공학연구지원센터 2014 International Journal of Multimedia and Ubiquitous Vol.9 No.11
Based on the in-depth study of the Android embedded application program frame and project file, this paper proposes a code generation method based on model rule, the method discusses the problem of the layout of the Android embedded application interface, defines the constraint rules between the components and component object model and event model. And code generation rules on the Android embedded applications are defined and used throughout the code generation process, it solves the visualization development of Android embedded application program and the code automatic generation. Finally, a simple examples is given to verify the process of automatic generation of Android embedded code.
Wen-sheng Hu,Sha Lu,Meng-yan Xu,Min-cong Zhou,Zhen-ming Yuan,Yue-yue Deng 한국간호과학회 2021 Asian Nursing Research Vol.15 No.3
Purpose: The aim of this study was to examine the behavioral responses of pregnant women during the early stage of Coronavirus Disease 2019 (COVID-19) outbreak. Methods: We recruited 1,099 women to complete an online questionnaire survey from February 10 to February 25, 2020. The subjects were divided into two groups (the pregnant women group and the control group). Results: Concerns about infection: most of the participants watched the COVID-19 news at least once a day. Protective behaviors: the utilization rate of pregnant women (often using various measures) was higher than that of nonpregnant women. Exercise: 30.6% of the pregnant women continued to exercise at home, whereas in the control group, this percentage was 8.4%. Spouse relationship: 38.8% of the subjects’ relationship improved, whereas only 2.3% thought the relationship was getting worse. Conclusion: Pregnant women had some unique behavioral responses different from that of nonpregnant women. It is important to understand the behavioral responses of pregnant women in this network era.
Wen-Xing Hu,Byoung-Jo Kim,Younghwan Kwak,Eun-Young Seo,Jung-Kyu Kim,Jae-Yeong Han,Ik-Hyun Kim,Yong Pyo Lim,In-Sook Cho,Leslie L Domier,John Hammond,Hyoun-Sub Lim 한국식물병리학회 2019 Plant Pathology Journal Vol.35 No.4
For several years, temperatures in the Korean peninsula have gradually increased due to climate change, resulting in a changing environment for growth of crops and vegetables. An associated consequence is that emerging species of insect vector have caused increased viral transmission. In Jeju Island, Korea, occurrences of viral disease have increased. Here, we report characterization of five newly collected turnip mosaic virus (TuMV) isolates named KBJ1, KBJ2, KBJ3, KBJ4 and KBJ5 from a survey on Jeju Island in 2017. Full-length cDNAs of each isolate were cloned into the pJY vector downstream of cauliflower mosaic virus 35S and bacteriophage T7 RNA polymerase promoters. Their fulllength sequences share 98.9-99.9% nucleotide sequence identity and were most closely related to previously reported Korean TuMV isolates. All isolates belonged to the BR group and infected both Chinese cabbage and radish. Four isolates induced very mild symptoms in Nicotiana benthamiana but KBJ5 induced a hypersensitive response. Symptom differences may result from three amino acid differences uniquely present in KBJ5; Gly(382)Asp, Ile(891)Val, and Lys(2522)Glu in P1, P3, and NIb, respectively.
Hu, Wen-Si,Kim, Hun,Koo, Ok Kyung Elsevier 2018 Anaerobe Vol.52 No.-
<P><B>Abstract</B></P> <P> <I>Clostridium perfringens</I> is one of the leading causes of food poisoning worldwide. The aims of this study were to investigate the presence of <I>C. perfringens</I> in food supplied to school cafeterias, to assess the presence of toxin genes in the isolates, and to investigate the biofilm formation and antibiotic susceptibility of the isolates. A total of 30 C<I>. perfringens</I> strains (12.9%) from 232 samples of beef, pork, chicken, and duck meat were isolated. Toxin genes, including <I>cpa</I>, <I>cpe</I>, <I>cpb2</I>, and <I>netB</I>, were detected, while the <I>cpb, etx, iap</I> and <I>tpe</I>L genes were absent. Biofilm formation was analyzed, and all the isolates were able to form biofilm. Antibiotic resistance was observed against penicillin (97%), lincomycin (20%), bacitracin (97%), oxytetracycline (73%), trimethoprim (7%), gentamicin (10%), tetracycline (93%), erythromycin (83%), ampicillin (100%), amikacin (7%), and streptomycin (3%). In conclusion, the results showed that students are exposed to a potentially high risk of food poisoning by <I>C. perfringens</I>; therefore, precaution is required for these types of catering services.</P> <P><B>Highlights</B></P> <P> <UL> <LI> <I>Clostridium perfringens</I> was isolated from meat supplied to Korean school cafeterias. </LI> <LI> All isolates were type A and <I>cpa</I>, <I>cpe</I>, <I>cpb2</I>, and <I>netB</I> genes were detected. </LI> <LI> Biofilm formation was observed in all of the isolates. </LI> <LI> Antibiotic resistance was observed in penicillin, ampicillin, and tetracyclin (>92%). </LI> </UL> </P>
( Wen Yu Zhao ),( Jun Yi Yu ),( Yin Hu Wu ),( Yu Hong ),( Hong Ying Hu ) 한국미생물생명공학회(구 한국산업미생물학회) 2014 한국미생물·생명공학회지 Vol.42 No.2
While coupling wastewater treatment with microalgal bioenergy production is very promising, new approaches are needed to enhance microalgal growth and lipid accumulation in wastewater. Therefore, this study investigated the effect of iron on the growth, nutrient removal, and lipid accumulation of Scenedesmus sp. LX1 in both artificial wastewater and domestic secondary effluents. When increasing the iron concentration from 0 to 2 mg/l in the artificial wastewater, the biomass production of Scenedesmus sp. LX1 increased from 0.17 to 0.54 g/l; the nitrogen and phosphorus removal efficiency increased from 15.7% and 80.6% to 97.0% and 99.2%, respectively; and the lipid content was enhanced 84.2%. The relationship between the carrying capacity/maximal population growth rate of Scenedesmus sp. LX1 and the initial iron concentration were also in accordance with the Monod model. Furthermore, when increasing the iron concentration to 2 mg/l in four different domestic secondary effluent samples, the lipid content and lipid production of Scenedesmus sp. LX1 was improved by 17.4-33.7% and 21.5-41.8%, respectively.