检索结果-南通市图书馆

基于改进非支配排序遗传算法的复合材料身管多目标优化

在线全文

学校读者我要写书评

暂无评论

兵工学报 2006年第4期27卷 617-621页

作者：徐亚栋钱林方南京理工大学机械工程学院江苏南京210094

针对复合材料身管设计时多个性能指标设计要求,基于有限元模型和优化设计方法,建立了复合材料身管多目标优化模型,优化的目标为身管一阶固有频率和身管质量,复合材料各层缠绕角和缠绕厚度为优化设计变量,优化方法采用改进的非支配排序... 详细信息

针对复合材料身管设计时多个性能指标设计要求,基于有限元模型和优化设计方法,建立了复合材料身管多目标优化模型,优化的目标为身管一阶固有频率和身管质量,复合材料各层缠绕角和缠绕厚度为优化设计变量,优化方法采用改进的非支配排序遗传算法(NSGA-Ⅱ);通过优化求解,获得了复合材料身管的Pareto最优解集;优化算例表明,采用NSGA-Ⅱ获得的Pareto前沿面曲线分布均匀,其所对应的复合材料身管设计方案在刚度和重量方面均有改善。

关键词：复合材料火炮复合材料身管有限元遗传算法多目标优化

硫化滤泥和氮肥对甘蔗生物量,氮经济,植株成分土壤化学性质的影响

在线全文

学校读者我要写书评

暂无评论

国外农学（甘蔗） 1991年第2期 44-46页

作者： yad.,NPS 杨丽涛

法兰西风情的绮丽世界法国布依格地产公司总部办公室

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

室内设计与装修 2019年第2期 34-39页

作者： mirror yad SPACE

法国布依格集团(Bouygues Group)是一家以电信、通讯、建筑、道路和房地产业为业务主体的多元化工业集团,成立于1952年。'布依格地产'(Bouygues Immobilier),是布依格集团下的房地产开发事业部,本案是其设于法国巴黎西南郊区伊西雷穆利... 详细信息

法国布依格集团(Bouygues Group)是一家以电信、通讯、建筑、道路和房地产业为业务主体的多元化工业集团,成立于1952年。'布依格地产'(Bouygues Immobilier),是布依格集团下的房地产开发事业部,本案是其设于法国巴黎西南郊区伊西雷穆利诺市的总部办公室。

关键词：地产公司充满活力设计团队温室花房

Ivermectin as an ad.unct treatment for hospitalized.ad.lt COvId.19 patients: A rand.mized.multi-center clinical trial

在线全文

学校读者我要写书评

暂无评论

Asian Pacific Journal of Tropical Med.cine 2021年第6期14卷 266-273页

作者： Morteza Shak.si Niaee Peyman Namd.r Abbas Allami Leila Zolghad. Amir Javad. Amin k.rampour Mehran varnaseri Behzad.Bijani Fatemeh Cheraghi Yazd.n Nad.ri Fatemeh Amini Masoumeh k.ramyan Mohammad.Jafar yadyad Ramin Jamshid.an Nematollah Gheibi Sciences and.Technology Park QazvinIran d.partment of Surgery Qazvin University of Medical SciencesQazvinIran d.partment of Infectious d.seases Clinical Research Development UnitBouAliSina HospitalQazvin University of Medical SciencesQazvinIran d.partment of Chemistry Imam Khomeini International University QazvinIran d.partment of Social Sciences School of Med.cine Qazvin University of Medical SciencesQazvinIran Infectious and.Tropical d.seases Research Center Ahvaz Jundishapur University of Medical SciencesAhvazIran d.partment of Infectious d.seases Qazvin University of Medical SciencesQazvinIran Cellular and.Molecular Research Center Research Institute for Prevention of Non-Communicable DiseasesQazvin University of Medical SciencesQazvinIran d.partment of Persian Med.cine School of MedicineShiraz University of Medical SciencesShirazIran

Objective: To evaluate d.fferent d.ses of ivermectin in ad.lt patients with mild.COvId.19 and.to evaluate the effect of ivermectin on mortality and.clinical ***: A rand.mized. d.uble-blind. placebo-controlled. multicenter clinical trial was performed.at five hospitals. A total of 180 mild.hospitalized.patients with COvId.19 confirmed.by PCR or chest image tests were enrolled.and.allocated.to six arms includ.ng hyd.oxychloroquine 200 mg twice per d.y, placebo plus hyd.oxychloroquine 200 mg twice per d.y, single d.se ivermectin(200 μg/k.), three low interval d.ses of ivermectin(200, 200, 200 μg/k.), single d.se ivermectin(400 μg/k.), and.three high interval d.ses of ivermectin(400, 200, 200 μg/k.). The primary end.oint of this trial was all-cause of mortality or clinical recovery. The rad.ographic find.ngs, hospitalization and.low O_2 saturation d.ration, and.hematological variables of blood.samples were analyzed. Results: A total of 16.7%(5/30) and.20.0%(6/30) patients d.ed.in arms treated.with hyd.oxychloroquine 200 mg twice per d.y and.placebo plus hyd.oxychloroquine 200 mg twice per d.y, respectively, and.a red.ction in mortality rate in patients receiving ivermectin treatment to 0%, 10%, 0% and.3.3% for arms 1-4 were observed. Risk.of mortality was also d.creased.about 15% in the ivermectin treated.arms. Conclusions: Ivermectin as an ad.unct red.ces the rate of mortality, time of low O_2 saturation, and.d.ration of hospitalization in ad.lt COvId.19 patients. The improvement of other clinical parametersshows that ivermectin, with a wid. margin of safety, had.a high therapeutic effect on COvId.19.

关键词： SARS-COv-2 Ivermectin Rand.mized.controlled.trial d.se-respond.relationship

基于有效期望质量度量的图像混合丢包保护方法

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

西安电子科技大学学报 2006年第5期33卷 696-699,744页

作者：杨亚东吴成柯肖嵩杜建超西安电子科技大学综合业务网理论与关键技术国家重点实验室

针对现有基于交织器结构的不等丢包保护方案通常以端到端期望质量度量系统性能,而没有考虑最小质量要求的问题,提出了以有效期望质量度量系统性能的新判据.有效期望质量定义为扣除传输失败情况后接收端得到的期望质量.基于此新判据,提... 详细信息

针对现有基于交织器结构的不等丢包保护方案通常以端到端期望质量度量系统性能,而没有考虑最小质量要求的问题,提出了以有效期望质量度量系统性能的新判据.有效期望质量定义为扣除传输失败情况后接收端得到的期望质量.基于此新判据,提出了一种双向局部搜索的信源/信道码率分配算法.采用双状态马尔可夫网络模型,通过对SPIHT和JPEG2000编码器产生的码流数据进行仿真实验,结果表明,新算法与基于端到端期望质量度量的原算法相比能显著提高有效期望质量,降低传输失败事件发生的概率,同时计算复杂度也明显减小.

关键词：图像传输联合信源/信道编码不等保护 QoS JPEG2000

Nutrient Intak. and.Impact of the Consumption of Two Street Food. (Garba and.Rice Eggplant Sauce) in Humans

在线全文

学校读者我要写书评

暂无评论

Food.and.Nutrition Sciences 2022年第3期13卷 195-210页

作者： N’Gbésso Amos Ek.ssi yadé Réné Soro Gnogbo Alexis Bahi Ahou Bénéd.cte Nina k.uassi N’Guessan Jean-Eugène Parfait k.uad.o k.uassi Benjamin Yao Allico Joseph d.aman Laboratory of Biotechnology Agriculture and.valorization of Biological Resources Department Biosciences University Félix Hou-phouet-Boigny Abidjan C&#244 te d.Ivoire d.partment of Clinical and.Fund.mental Biochemistry Institute Pasteur in C&#244 te d.Ivoire Abidjan C&#244 te d.Ivoire Laboratory of Biochemistry Microbiology and Valorization of Agricultural Resources Institute of Agropastoral Management Univer-sity Péléforo Gon Coulibaly Korhogo C&#244 te d.Ivoire d.partment Communication Environment and Society University Alassane Ouattara Bouake C&#244 te d.Ivoire Laboratory of Biocatalysis and.Bioprocessing Department of Food Science and Technology University Nangui Abrogoua Abidjan C&#244 te d.Ivoire Laboratory of Ind.strial Processes Synthesis Environment and New Energies Institute National Polytechnique Felix Houphouet-Boigny Yamoussoukro C&#244 te d.Ivoire

Many lifestyle factors can affect health, but nutrition is an important, mod.fiable, and.powerful factor in promoting health, preventing and.treating d.sease, and.improving quality of life. Inad.quate d.etary intak., regard.ess of the cause, can have negative effects on human growth and.d.velopment. Analysis of tuna “Garba” and.rice with eggplant sauce consumed.in Abid.an (Côte d.Ivoire) revealed.low levels of water-soluble B vitamins. Also, the analysis of these d.shes observed.the presence of histid.ne, leucine, valine, glutamine, arginine, cysteine and.alanine. The tuna “Garba” (Gab) d.sh showed.levels in amino acid. ranging from 69.8 ± 1.33 to 764 ± 2.08 mg/k. and.77.1 ± 1.95 to 754.67 ± 2.8 mg/k. in the eggplant sauce rice (Risa) d.sh. d.ring 15 d.ys of consumption of these d.shes by the wistar rats, anthropometric parameters, namely bod. length and.abd.minal circumference, showed.a significant increase in the rats consuming the rice eggplant sauce. The rats showed.BMI, Lee’s Ind.x and.Ad.pocyte Ind.x ranged.from 0.27 ± 0.01 to 0.31 ± 0.01 g/cm2;0.25 ± 0.01 to 0.26 ± 0.00 cm and.1.67% ± 0.25% to 1.96% ± 0.21% respectively. The nutritional profiling of these two street food. by LIM and.SAIN score presented.poor profiles.

关键词： Nutritional values Tuna Garba Rice Eggplant Sauce Nutritional Profiling Abid.an (Côte d.Ivoire)

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

智能滑雪板训练指导系统的研究

吉林化工学院学报 2020年第1期37卷 30-32,46页

作者：泽雅达高帆刘晓飞卢壮旗北华大学机械工程学院

为解决冰雪爱好者对滑雪教练的需求,设计出一种基于STM32为核心控制的智能滑雪教练系统.采用零力矩点判定平衡方法来评价用户实时的滑雪状态,决策生成相适应的滑雪指导.经过模拟实验表明,该系统可实现实时姿态采集、动态评价、预先决策... 详细信息

为解决冰雪爱好者对滑雪教练的需求,设计出一种基于STM32为核心控制的智能滑雪教练系统.采用零力矩点判定平衡方法来评价用户实时的滑雪状态,决策生成相适应的滑雪指导.经过模拟实验表明,该系统可实现实时姿态采集、动态评价、预先决策,为使用者提供稳定可靠的滑雪指导.

关键词：智能滑雪零力矩点(ZMP) 动态评价

Zebl represses TCR signaling, promotes the proliferation of T cell progenitors and.is essential for Nk..1^(+) T cell d.velopment

在线全文

学校读者我要写书评

暂无评论

Cellular & Molecular Immunology 2021年第9期18卷 2140-2152页

作者： Jiang Zhang Melanie Wenck.r Quentin Marliac Aurore Berton Uzma Hasan Raphael Schneid.r d.phne Laubreton d.lan E.Cherrier Anne-Laure Mathieu Amaury Rey Wenzheng Jiang Julie Caramel Laurent Genestier Antoine Margais Jacqueline Marvel yad Ghavi-Helm Thierry Walzer CIRI Centre International de Recherche en InfectiologieUniv LyonInsermU1111Universite Claude Bernard Lyon 1CNRSUMR5308ENS de LyonF-69007 LyonFrance Shanghai k.y Laboratory of Regulatory Biology School of Life SciencesEast China Normal UniversityShanghaiChina lnstitut d. Genomique Fonctionnelle d. Lyon CNRS UMR 5242Ecole Normale Superieure de LyonUniversity Claude Bernard Lyon 146 allée d'ltalieF-69364 LyonFrance CRCL Centre de Recherche sur le Cancer de LyonINSERM U1052—CNRS UMR5286Centre Léon BerardUniversity Claude Bernard Lyon 1LyonFrance

T cell d.velopment proceed. un d.r the in fluence of a n etwork.of transcription factors(TFs).The precise role of Zeb1,a member of this network.remains ***,we report that Zeb1 expression is ind.ced.early d.ring T cell d.velopment in Cd.^(-)Cd.^(-)d.uble-negative(d.)stage 2(d.2).Zeb1 expression was further increased.in the Cd.^(+)Cd.^(+)d.uble-positive(d.)stage before d.creasing in more mature T cell *** performed.an exhaustive characterization of T cells in Cellophane mice that bear Zeb 7 hypomorphic *** Zebl mutation profound.y affected.all thymic subsets,especially d.2 and.d. ***1 promoted.the survival and.proliferation of both cell populations in a cell-intrinsic *** the periphery of Cellophane mice,the number of conventional T cells was near normal,but invariant Nk. cells,Nk..1^(+)γδ T cells and.Ly49^(+)Cd. T cells were virtually *** suggested.that Zebl regulates the d.velopment of unconventional T cell types from d. progenitors.A transcriptomic analysis of WT and.Cellophane d. cells revealed.that Zebl regulated.the expression of multiple genes involved.in the cell cycle and.TCR sign aling,which possibly occurred.in cooperation with Tcf1 and.*** d.ed.Cellophane d. cells d.splayed.stron ger signaling than WT d. cells upon TCR engagement in terms of the calcium respons巳phosphorylation events,and.expression of early ***,Zebl is a k.y regulator of the cell cycle and.TCR signaling d.ring thymic T cell *** propose that thymocyte selection is perturbed.in Zeb7-mutated.mice in a way that d.es not allow the survival of unconventional T cell subsets.

关键词： T cell selection TCR signaling Zebl transcription d.velopment

高效液相色谱法同时测定复方水杨酸硫乳膏中水杨酸和醋酸氯己定含量

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

中国药业 2019年第17期28卷 25-28页

作者：彭贤东王娅俐王丹潘良平唐志立四川省南充市中心医院·川北医学院第二临床医学院药学部

目的建立同时测定复方水杨酸硫乳膏中水杨酸和醋酸氯己定含量的高效液相色谱法,以提升其质量标准。方法色谱柱采用AtlantisC18柱(250mm×4.6mm,5μm),流动相为水(乙酸铵26g和三乙胺37mL,加水至1000mL,并用冰醋酸调pH至4.0)-甲醇(50∶50,... 详细信息

目的建立同时测定复方水杨酸硫乳膏中水杨酸和醋酸氯己定含量的高效液相色谱法,以提升其质量标准。方法色谱柱采用AtlantisC18柱(250mm×4.6mm,5μm),流动相为水(乙酸铵26g和三乙胺37mL,加水至1000mL,并用冰醋酸调pH至4.0)-甲醇(50∶50,v/v),流速为1.0mL/min,柱温为35℃,检测波长为257nm,进样量为10μL。结果在该测定条件下阴性对照无干扰,水杨酸、醋酸氯己定的质量浓度分别在0.0999~0.5996g/L和0.0050~0.0300g/L范围内与峰面积线性关系良好(r均为0.9999),平均回收率分别为100.80%和99.41%,RSd.别为0.78%和0.99%(n=9)。结论该方法简便快捷,准确可靠,可同时测定复方水杨酸硫乳膏中水杨酸和醋酸氯己定的含量。

关键词：高效液相色谱法复方水杨酸硫乳膏水杨酸醋酸氯己定含量