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Journal of University of Science and Technology Beijing 2005年第6期12卷 564-571页

作者： Junsheng Wu Xiaogang Li Wei du Hua Chen Materials Science and Engineering School University of Science and Technology Beijing Beijing 100083 China

The phase separation and gel formation behavior in an alkoxy-derived silica sol-gel system containing C16eo15 has been investigated. Various gel morphologies similar to other sol-gel systems containing organic additives were obtained by changing the preparation conditions. Micrometer-range interconnected porous gels were obtained by freezing transitional structures of phase separation in the sol-gel process. The dependence of the resulting gel morphology on several important reaction parameters such as the starting composition, reaction temperature and acid catalyst concentration was studied in detail. The experimental results indicate that the gel morphology is mainly determined by the time relation between the onset of phase separation and gel formation.

关键词： silica sol-gel phase separation macroporous gel morphology nonionic surfactant

Preparation of A Novel Hybrid Type Photosensitive Resin for Stereolithography in 3D Printing and Testing on the Accuracy of the Fabricated Parts

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Journal of Wuhan University of Technology(Materials Science) 2017年第3期32卷 726-732页

作者：黄笔武 du Zhipeng YONG Tao HAN Wenjuan School of Material Science and Engineering Nanchang University Nanchang 330013 China

A novel hybrid type photosensitive resin for stereolithography in 3D printing was prepared with bisphenol A type epoxy diacrylate （EA-612）, tripropylene glycol diacrylate （TPGDA）,ethoxylated trimethyolpropane triacrylate（eo3TMPTA）, cycloaliphatic diepoxide（ERL-4221）,polycaprolactonepolyol（Polyol-0301）,1-hydroxy-cyclohphenyl ketone（Irgacure184）, and a mixture of triarylsulfonium hexafluoroantimonate salts （Ar3SSbF6）. The novel hybrid type photosensitive resin was the photosensitive resin of an epoxy-acrylate hybrid system, which proceeded free radical polymerization and cationic polymerization in ultraviolet （UV） laser. Cuboid parts and double-cantilever parts were fabricated by using a stereolithography apparatus with the novel hybrid type photosensitive resin as the processing material,and the dimension shrinkage factor and the curl factor were tested. The shrinkage factor was less than 2.00%,and the curl factor was less than 8.00%, which showed that the accuracy of the fabricated parts was high with the photosensitive resin for stereolithography in 3D printing.

关键词： laser photosensitive resin stereolithography part accuracy 3D printing

Effects of thymol and carvacrol supplementation on intestinal integrity and immune responses of broiler chickens challenged with Clostridium perfringens

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Journal of Animal Science and Biotechnology 2016年第4期7卷 522-531页

作者： Encun du Weiwei Wang Liping Gan Zhui Li Shuangshuang Guo Yuming Guo State Key Laboratory of Animal Nutrition College of Animal Science and TechnologyChina Agricultural University

Background： Necrotic enteritis caused by Clostfidium perffingens infection leads to serious economic losses in the global poultry production. In the present study, we investigated the protective effects of essential oils （eo, which contained 25 % thymol and 25 % carvacrol as active components） supplementation on growth performance, gut lesions, intestinal morphology, and immune responses of the broiler chickens infected with C. perfringens. A total of 448 1-day-old male broiler chicks were allocated into eight treatment groups following a 4 x 2 factorial arrangement with four dietary eo dosages （0, 60, 120, or 240 mg/kg） and two infection status （with or without C. perfringens challenge from d 14 to 20）. Results： The challenge did not impair the growth performance of birds, but induced gut lesions and increased crypt depth in the ileum （P ≤ 0.05）. It also down-regulated the claudin-1 and occludin mRNA expression （P ≤0.05）, up-regulated the mRNA expression of interleukin-113 （P≤ 0.05）, tended to increase the toll-like receptor （TLR） 2 mRNA expression （P 〈 0.10） in the ileum, and enhanced the mucosal secretory IgA production （P 〈 0.05）. In the challenged birds, dietary eo supplementation linearly alleviated the gut lesions and improved the ratio of villus height to crypt depth （P ≤0.05）, and the supplementation of 120 and 240 mg/kg eo increased the serum antibody titers against Newcastle disease virus （P≤ 0.05）. Regardless of challenge, the eo supplementation showed a tendency to linearly elevate the feed conversion efficiency between 14 and 28 d of age as well as the occludin mRNA expression （P〈 0.10）, and linearly inhibited the mRNA expression of TLR2 and tumor necrotic factor-o in the ileum （P≤ 0.05）. Conclusions： The dietary supplementation of eo could alleviate the intestinal injury by improving intestinal integrity and modulating immune responses in the C. perffingens-challenged broiler chickens.

关键词： Broiler chicken Clostridium peffringens Essential oils Immune response Intestinal integrity

In vitro antibacterial activity of thymol and carvacrol and their effects on broiler chickens challenged with Clostridium perfringens

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Journal of Animal Science and Biotechnology 2016年第1期7卷 95-106页

作者： Encun du Liping Gan Zhui Li Weiwei Wang Dan Liu Yuming Guo State Key Laboratory of Animal Nutrition College of Animal Science and TechnologyChina Agricultural University

Background： In the post-antibiotic era, essential oils （eo） are promising alternatives to growth-promoting antibiotics. The aim of the present study was to investigate the antibacterial activities of an eo product and its components thymol and carvacrol in vitro, and the efficacy of eo to control Clostridium perffingens challenge in broiler chickens. Results： The in vitro minimum inhibitory concentration assay showed strong antibacterial activity of the eo product, thymol, and carvacrol against pathogenic Escherichia col~, C. perffingens, and Salmonella strains, and weak activity towards beneficial Lactobacillus strains. Besides, an additive effect was observed between thymol and carvacrol. The in vivo study was carried out with 448 male broiler chicks following a 4 x 2 factorial arrangement to test the effects of eo supplementation （0, 60, 120, or 240 mg/kg eo in wheat-based diet）, pathogen challenge （with or without oral gavage of C. perfr/ngens from day 14 to day 20） and their interactions. Each treatment consisted of eight replicate pens （seven birds/pen）. The challenge led to macroscopic gut lesions, and resulted in a significant increase in ileal populations of C. perffingens and Eschefichia subgroup （P ≤ 0.05） on day 21. Dietary eo supplementation did not influence C. perfringens numbers, but linearly alleviated intestinal lesions on day 21 and 28 （P= 0.010 and 0.036, respectively）, and decreased Eschefichia populations in ileum with increased eo dosages （P = 0.027 and 0.071 for day 21 and 28, respectively）. For caecum, eo quadratically influenced Lactobacillus populations on day 21 （P = 0.002）, and linearly decreased the numbers of total bacteria and Eschefichio on day 28 （P = 0.026 and 0.060, respectively）. Mean thymol and carvacrol concentrations in the small intestine were 0.21 and 0.20 μg/g in intestinal digesta （wet weight）, respectively, for birds fed 60 mg/kg eo, and 0.80 and 0.71 μg/g, respectively, for birds fed 240 mg/kg eo. Conclusions： These resu

关键词： Thymol Carvacrol Essential oils Clostfidium perfringens Eschefichia coil Broiler chickens

Spatial aggregations for spatial based decision making in spatial data warehouses

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重庆邮电大学学报（自然科学版） 2007年第3期19卷 318-322页

作者： ByeongSeob You DongWook Lee SangHun eo SookKyung Cho HaeYoung Bae Department of Computer Science and Information Engineering Inha University

For spatial based decision making such as choice of best place to construct a new department store, spatial data warehousing system is required more and more previous spatial data warehousing systems; however, provided decision making of non-spatial data on a map and so those cannot support enough spatial based decision making. The spatial aggregations are proposed for spatial based decision making in spatial data warehouses. The meaning of aggregation operators for applying spatial data was modified and new spatial aggregations were defined. These aggregations can support hierarchical concept of spatial measure. Using these aggregations, the spatial analysis classified by non-spatial data is provided. In case study, how to use these aggregations and how to support spatial based decision making are shown.

关键词：空间数据空间集合体空间决策数据库

Efficient and power-awareness query over sensor networks

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重庆邮电大学学报（自然科学版） 2007年第3期19卷 270-275页

作者： Sang-Hun eo Ho-Seok Kim Sook-Kyoung Cho Hae-Young Bae Dept. of Computer Science & Information Engineering Inha University

Sensor networks consisted of low-cost, low-power, multifunctional miniature sensor devices have played an important role in our daily life. Light and humidity monitoring, seismic and animal activity detection, environment and habitat monitoring are the most common applications. However, due to the limited power supply, ordinary query methods and algorithms can not be applied on sensor networks. Queries over sensor networks should be power-aware to guarantee the maximum power savings. The minimal power consumption by avoiding the expensive communication of the redundant sensor nodes is concentrated on. A lot of work have been done to reduce the participated nodes, but none of them have considered the overlapping minimum bounded rectangle (MBR) of sensors which make them impossible to reach the optimization solution. The proposed OMSI-tree and OMR algorithm can efficiently solve this problem by executing a given query only on the sensors involved. Experiments show that there is an obvious improvement compared with TinyDB and other spatial index, adopting the proposed schema and algorithm.

关键词：传感器网络查询最小界矩形效率

The Norwood with Blalock-Taussig-Thomas Shunt—Worth a Second Look?

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Congenital Heart Disease 2024年第5期19卷 435-443页

作者： Manasa Gadiraju Dhaval Chauhan Alexandra Schray James eo’Brien Jr Edo KwakuSetsoafia Bedzra School of Medicine University of Missouri-Kansas CityKansas CityMO 64108USA Department of Cardiovascular and Thoracic Surgery Division of Pediatric Cardiothoracic SurgeryWest Virginia UniversityMorgantownWV 26506USA Department of Surgery Parkview HealthFort WayneIN 46845USA Department of Surgery Division of Congenital Cardiac SurgeryChildren’s Mercy HospitalKansas CityMO 64108USA

Background:Shunt repair for the Norwood procedure with either the right ventricle to pulmonary artery shunt(RVPAS)or the modified Blalock-Taussig-Thomas Shunt(BTTS)varies by institution and surgeon *** choice has been informed by landmark trials including the Single Ventricle Reconstruction trial and modern outcomes data may engender future complementary ***:We conducted a retrospective analysis of all patients who underwent the Norwood procedure from 2014–2022 at a single center to compare outcomes by shunt *** primary outcome measure was freedom from death or *** outcome measures included hospital length of stay,complications,and unplanned ***:93 patients underwent the Norwood procedure at a median age of 7 days(IQR 5,9)and 39 weeks gestation(IQR 38,39).67.7%had hypoplastic left heart syndrome.39 patients received a BTTS compared to 54 *** was no difference in operative mortality(BTTS 12.8%,RVPAS 9.3%,p=0.58),death or transplant at 1 year(BTTS 15.4%,RVPAS 7.4%,p=0.31),or between 1 and 3 years(BTTS 0%,RVPAS 5.6%,p=0.26).There was a significantly higher rate of pulmonary arterial stenting in the RVPAS group(BTTS 1.21/100 patient-years,RVPAS 15.68/100 patient-years,p=0.01).Conclusions:Similar short-and medium-term survival were seen in BTTS and RVPAS groups with fewer pulmonary artery interventions for BTTS,though our study is underpowered to suggest superior freedom from *** results may serve as a hypothesis-generating study to revisit the SVR trial with a modern cohort in the setting of improved surgical technique and perioperative management.

关键词： Hypoplastic left heart syndrome Norwood procedure Sano RVPAS univentricular heart

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解析移动梦网

数字通信 2002年第8期29卷 93-96页

作者： 1eo

i-mode下的蛋2000年11月10日,中国移动推出移动梦网。中国移动对移动梦网的定义,是“提供无线数据应用业务以及引导无线数据应用业务发展”。移动梦网提供的服务内容包括无线数据应用业务、统一信息眼务、服务提供商(SP)合作业务、企业... 详细信息

i-mode下的蛋2000年11月10日,中国移动推出移动梦网。中国移动对移动梦网的定义,是“提供无线数据应用业务以及引导无线数据应用业务发展”。移动梦网提供的服务内容包括无线数据应用业务、统一信息眼务、服务提供商(SP)合作业务、企业无线网络应用业务。

关键词：移动梦网中国移动公司无线数据应用业务 i-mode 短信 GPRS 计费

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棒线材轧机的新发展

长城技术 1992年第4期 77-85页

作者： Bios,eo 陈生富

Potassium tantalate niobate crystals:Efficient quadratic electro-optic materials and their laser modulation technology

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Journal of Materiomics 2023年第5期9卷 838-854页

作者： Xuping Wang Xinguo Mao Pan Chen Qian du Yuguo Yang Panyu Qiao Shaodong Zhang Zhijian Li Rui Zhang Bing Liu Jiyang Wang Advanced Materials Institute Qilu University of Technology(Shandong Academy of Sciences)Jinan250014China Qilu University of Technology(Shandong Academy of Sciences) Advanced Materials InstituteKey Laboratory of Light Conversion Materials and Technology of Shandong Academy of SciencesJinan250014China State Key Laboratory of Crystal Materials Institute of Crystal MaterialsShandong UniversityJinan250100China

Electro-optic(eo)crystals are important material for all-solid-state laser technology,which can be used to fabricate various laser modulators,such as eo switches,laser deflectors,and optical *** improvements in new high-efficiency eo crystal materials have held great significance to the development of laser *** tantalate niobate(KTN)is a popular multifunctional crystal because of its remarkable and excellent quadratic eo *** eo modulation technology offers numerous advantages,such as high efficiency,good stability,a quick response time,and inertia-free *** this paper,we summarize the research progress of KTN series crystals systemically,including the theoretical exploration on quadratic eo effect,solid-melt crystal growth technique,comprehensive physical characterization,new physical effect and mechanisms exploration,new eo devices development and *** eo modulation technique based on the Kerr effect of KTN series crystal offers obvious advantages in reducing the drive voltage and device size,which could better meet the developmental needs of future lasers with a wide wavelength,miniaturization,and *** may provide theoretical guidance and an experimental basis for the design and development of new eo crystal devices and promote the development of laser technology.

关键词： Electro-optic effect Kerr effect Electro-optic crystal Crystal growth Potassium tantalate niobate crystal Laser modulation Deflector