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腹腔镜手术时妇科病的处理

德国医学 1994年第1期11卷 29-30页

作者： m.heβeling R.L.DeWilde 顾美皎 Frauenklinik des Bethesda-Krankenhauses Hainstr.35D-42109 WuppertalGermany 同济医科大学附属同济医院

腹腔镜应用增加,使外科医师面临妇科病机会增加,治疗不当者并不少见。术前诊断应以妇科特殊病史和盆腔超声检查为基础。稍有疑及妊娠,皆应作妊娠试验,阳性时加作血清β-hCG 测定。术前超声检查小骨盆对任何年龄病例均必要。若超声检查... 详细信息

腹腔镜应用增加,使外科医师面临妇科病机会增加,治疗不当者并不少见。术前诊断应以妇科特殊病史和盆腔超声检查为基础。稍有疑及妊娠,皆应作妊娠试验,阳性时加作血清β-hCG 测定。术前超声检查小骨盆对任何年龄病例均必要。若超声检查发现盆腔内病理现象,需妇科阴道检查和阴道超声检查判明。

关键词：腹腔镜检妇科病处理外科手术

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ADmE在药品毒理学评价中的作用

ADME在药品毒理学评价中的作用

植物油中脂肪酸成分及抗氧化剂对奶牛生产性能及乳脂降低的影响

药物非临床安全性研究学术研讨会

作者： michelle m.he Lisa A．Shipley Carl L．mcmillian 礼来公司礼来研究实验室礼来公司礼来研究实验室礼来公司礼来研究实验室病理及毒理学研究室

ADmE 在安全性评价中的作用·描述候选药物在动物和人体内的吸收、分布、代谢和扫泄(ADmE) ·在毒理学研究中测定暴露量以确定安全范围(mOS)

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中国畜牧兽医 2011年第7期38卷 232-232页

作者： m.he 姜雅慧

试验旨在评价日粮中添加含有不同脂肪酸成分的未保护的植物油或植物油商业抗氧化剂(Agrado)的混合物对奶牛的生产性能、乳脂脂肪酸成分及乳脂降低的影响。24头经产荷斯坦奶牛通过产奶量高低分为Agrado添加组、Agrado不添加组,抗氧化剂... 详细信息

试验旨在评价日粮中添加含有不同脂肪酸成分的未保护的植物油或植物油商业抗氧化剂(Agrado)的混合物对奶牛的生产性能、乳脂脂肪酸成分及乳脂降低的影响。24头经产荷斯坦奶牛通过产奶量高低分为Agrado添加组、Agrado不添加组,抗氧化剂处理作为试验的主区。每个固定效应的处理组(高产奶量奶牛日粮中添加及不添加抗氧化剂、低产奶量组奶牛日粮中添加及不加抗氧化剂)中的6头奶牛作为拉丁方设计中21 d的裂区设计。试验拉丁方设计中裂区的日粮处理组的6头奶牛饲喂无油类添加的日粮作为对照组(control),日粮中添加5%Dm的棕榈油(PO)或含高油酸的红花油(OSAF)或含高亚油酸的红花油(LSAF)或亚麻籽(LNSD)或玉米(CO)。添加的油类替换全混合日粮中的玉米淀粉;所有处理组的日粮各营养成分如粗蛋白质、中性洗涤纤维含量相当,日粮中含有41.2%的苜蓿、18.3%玉米青贮、和40.5%精料混合物(均以干物质含量为基础)。饲喂抗氧化剂Agrado不会影响乳产量、乳脂和乳蛋白产量及乳脂中脂肪酸的组成。添加植物油较对照组而言,动物的干物质采食量、乳产量和乳蛋白产量无显著差异。但PO组的乳脂含量及乳脂中中短链脂肪酸(C<16)的比例及含量较对照组显著降低。饲喂棕榈油能有效的维持乳脂产量(1.18 kg/d)及含量(3.44%)。然而,富含亚油酸的植物油组(CO和LSAF)较对照组显著降低乳脂产量(0.98、0.86和1.14 kg/d)和乳脂浓度(3.05%、2.83%和3.41%)。OSAF和LNSD组的奶牛的生产性能相似说明油酸和亚油酸对乳脂降低的作用相近。

关键词：油酸亚油酸亚麻酸饱和脂肪酸

Prediction of liquid circulation flow rate in RH degasser:improvement of decarburization at low atmospheric pressure

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Journal of Iron and Steel Research International 2024年第7期31卷 1661-1667页

作者： Gu-jun Chen Sheng-ping he College of materials Science and Engineering Yangtze Normal UniversityChongqing 400044China College of materials Science and Engineering Chongqing UniversityChongqing 400044China

The two-fluid model coupled with population balance model was used for simulating the gas-liquid flow in the Ruhrstahl-heraeus(RH)*** predicted circulation flow rate was compared with that measured from a water model experiment to validate the mathematical ***,influence of snorkel immersion depth on liquid circulation flow rate was numerically investigated under an atmospheric pressure of 101 and 84 kPa,*** result indicates that the circulation flow rate of the RH degasser in the high-altitude area was severely reduced because of the decrease in atmospheric ***,increasing the snorkel immersion depth from 0.5 to 0.7 m can compensate for the decrease in atmospheric *** test result indicates that decarburization rate is significantly enhanced by increasing the snorkel immersion *** optimization,the percentage of heats with a final carbon content less than 0.002 wt.%is significantly increased from 22.0%to 96.4%.

关键词： RH degasser Two-fluid model Population balance model-Circulation flow rate Decarburization Snorkel immersion depth

Volume of fluid simulation of single argon bubble dynamics in liquid steel under RH vacuum conditions

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Journal of Iron and Steel Research International 2024年第4期31卷 828-837页

Single argon bubble dynamics in liquid steel under Ruhrstahl-heraeus(RH)vacuum conditions were simulated using the volume of fluid method,and the ideal gas law was used to consider bubble growth due to heat transfer and pressure *** simulation with a constant bubble density was also performed to validate the numerical method,and the predicted terminal bubble shape and velocity were found to agree with those presented in the Grace diagram and calculated by drag correlation,*** simulation results under RH conditions indicate that the terminal bubble shape and velocity cannot be *** primary bubble growth occurs within a rising distance of 0.3 m owing to heating by the high-temperature liquid steel;subsequently,the bubble continues to grow under equilibrium with the hydrostatic *** the initial diameter is 8-32 mm,the bubble diameter and rising velocity near the liquid surface are 80-200 mm and 0.5-0.8 m/s,*** bubble rises rectilinearly with an axisymmetric shape,and the shape evolution history includes an initial sphere,(dimpled)ellipsoid,and spherical cap with satellite bubbles.

关键词： Bubble dynamics Liquid steel Volume of fluid Bubble growth Bubble shape Rising velocity

Boson star superradiance

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Science China(Physics,mechanics & Astronomy) 2024年第6期67卷 69-78页

作者： he-Yu Gao Paul m.Saffin Yi-Jie Wang Qi-Xin Xie Shuang-Yong Zhou School of Physical Sciences University of Science and Technology of ChinaHefei 230026China School of Physics and Astronomy University of NottinghamUniversity ParkNottingham NG72RDUK Interdisciplinary Center for Theoretical Study University of Science and Technology of ChinaHefei 230026China Peng Huanwu Center for Fundamental Theory Hefei 230026China

Recently,it has been realized that in some systems internal space rotation can induce energy amplification for scattered waves,similar to rotation in real *** particularly,it has been shown that energy extraction is possible for a Q-ball,a stationary non-topological soliton that is coherently rotating in its field *** this paper,we generalize the analysis to the case of boson stars,and show that the same energy extraction mechanism still works for boson stars.

关键词： superradiance boson star field space rotation

The minimum Centroid Branch Spanning Tree Problem

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Journal of the Operations Research Society of China 2024年第2期12卷 528-539页

作者： Hao Lin Cheng he School of Science Henan University of TechnologyZhengzhou450001HenanChina

For a spanning tree T of graph G,the centroid of T is a vertex v for which the largest component of T-v has as few vertices as *** number of vertices of this component is called the centroid branch weight of *** minimum centroid branch spanning tree problem is to find a spanning tree T of G such that the centroid branch weight is *** application to design of communication networks,the loads of all branches leading from the switch center should be as balanced as *** this paper,we prove that the problem is strongly NP-hard even for bipartite ***,the problem is shown to be polynomially solvable for split graphs,and exact formulae for special graph familis,say Kn_(1),n_(2),...,n_(k)and P_(m)×P_(n),are presented.

关键词： Spanning tree optimization Centroid branch-NP-hardness Polynomial-time algorithm

Scalable graphene foam with ultrahigh conductivity for stabilizing Pt towards efficient hydrogen evolution

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Nano Research 2024年第8期17卷 6968-6976页

作者： ming Zhao meng Huang Huihui Jin Dayin he Wei Qian Zixin Zhang Daping he State Key Laboratory of Advanced Technology for materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Hubei Engineering Research Center of RF-microwave Technology and Application Wuhan University of TechnologyWuhan 430070China School of Information Engineering Wuhan University of TechnologyWuhan 430070China School of Chemistry and materials Science University of Science and Technology of ChinaHefei 230026China Sanya Science and Education Innovation Park of Wuhan University of Technology Sanya 572000China

For the carbon-based catalyst to be active and stable,especially in harsh electrochemical environments,the key is to decrease the concentration of defects and raise the degree of graphitization of the carbon ***,we develop a highly graphitized graphene foam with multiplicated structure to fabricate self-supporting Pt-based catalysts for efficient and stable hydrogen evolution reaction(heR)*** foam(GO-2850)is obtained through an ultra-high temperature treatment at 2850℃,with perfect graphene structure and extremely low defect,ensuring high electrical conductivity and corrosion ***,its multiplicated structure provides an inherently favorable environment for the dispersion of Pt nanoparticles(Pt NPs)and offers abundant channels for electrolyte infiltration during the catalytic *** a result,the as-prepared Pt/GO-2850 is far active and stable than the Pt NPs supported on commercial carbon paper(Pt/CP)counterpart toward catalyzing heR,exhibiting an outstanding activity and long-term durability(300 h@10 mA·cm^(−2))in acidic/alkaline/seawater *** can be attributed to the stronger interaction between the lower-defect GO-2850 substrate and Pt,as evidenced by characterization and theoretical *** work extends further insight into the design self-supporting catalysts of high activity and stability with promising prominent application toward green energy devices.

关键词： graphene foam high graphitization Pt nanoparticles hydrogen evolution reaction long-term stability

Waste to treasure:Reutilization of fluid catalytic cracking coke block as photothermal conversion material for water evaporation

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Particuology 2024年第5期88卷 62-70页

作者： Zhuwei Gao Chengxin Li Jingjing he Zhuo Wang Xinyu Qi Lan he Shihao Wang Zhongxin Liu School of Chemical Engineering and Technology Hainan UniversityHaikou 570228China TJ-YZ School of Network Science Haikou University of EconomicsHaikou 570203China School of Food Science and Engineering Hainan UniversityHaikou 570228China Key Laboratory of Advanced materials of Tropical Island Resources of ministry of Education Hainan UniversityHaikou 570228China Hainan Provincial Key Laboratory of Fine Chemicals Hainan UniversityHaikou 570228China

This study aims to analyze the coking process and propose an effective method for the reutilization of fluid catalytic cracking(FCC)coke ***,we analyzed the basic characteristics and chemical composition of FCC coke *** results showed that the main components were carbon,oxygen,and aluminum,accounting for 60.8%,26.6%,and 11.5%,*** the conventional catalytic cracking reaction temperature from 500℃ to 600℃,the formation of the first aromatic hydrocarbon was particularly important for the formation of *** condensation of oil-gas-entrained catalyst particles and their heavy components was the physical cause of coking,while the dehydrogenation condensation reaction of oil-gas heavy components was the chemical *** addition,the membrane prepared by powdered coke had excellent photothermal conversion ability,which could be heated to more than 110℃ within 360 s under two fixed light *** evaporation rate of photothermal water was 5.89 kg m^(2) h^(−1),which has great industrial application *** works provide a novel and effective method of separation membrane for the reutilization of FCC coke blocks.

关键词： Coking process Reutilization of FCC coke Carbonaceous deposition membrane Photothermal conversion