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Distinguishing between wild-caught and captive-bred Common Pheasantusing methylation rate of skeletal muscle DNA
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作者 Wenhui Wang Lijun Lin +15 位作者 Yue Ma Yan Cui Qi Zhang Jincheng Yang Yongheng Zhou Liangyu Cui Boyang Liu Chang Su Mengjia Yu Yuwei Gao Peng Gao Yujia Du Yu Zhou Elizabeth Kamili Shuhui Yang Yanchun Xu 《Avian Research》 2025年第2期264-274,共11页
Illegal hunting and trafficking of wildlife and their derivatives extort unprecedented population decline of relatively many species pushing them towards extinction.Notwithstanding contemporary counteracting intervent... Illegal hunting and trafficking of wildlife and their derivatives extort unprecedented population decline of relatively many species pushing them towards extinction.Notwithstanding contemporary counteracting interventions at international,regional,national and local levels,wildlife farming is advocated as an alternative approach to minimize pressure on wild populations.For wildlife farming to be an effective conservation tool,the integration of wildlife forensics is inevitable to allow distinction between captive-bred and wild-caught species.To this end,we analyzed methylation rates of skeletal muscle samples(pectoralis major,triceps brachii,gastrocnemius,biceps femoris,and neck muscles)from 60 captive-bred and 30 wild-caught Common Pheasant.A total of 13,507 differentially methylated regions were identified between five wild-caught and five captive-bred individuals through whole-genome methylation sequencing(WGBS).Based on the selected five methylation sites,LOC116231076,LOC116242223,ATAD2B,EGFL6,and HS2ST,quantitative detection technique was developed using methylation-sensitive high-resolution melting curve(MS-HRM)to measure methylation rates.The results showed significant differences in methylation rates at all differential sites between wild-caught and captive-bred individuals(|t|=0.67–33.10,P=0.000–0.042).The discrimination accuracy rate of each locus was highest in the gastrocnemius muscle and lowest in the neck muscle.The discrimination accuracy rate on LOC116231076,LOC116242223,ATAD2B,EGFL6,and HS2ST methylation sites for gastrocnemius muscle was 64.98%,100.00%,68.54%,63.79%,and 63.70%,respectively;and for neck muscle it was 67.42%,68.06%,83.61%,65.04%,and68.85%,respectively.The united discrimination accuracy rate of the five loci were 100.00%for gastrocnemius muscle,99.78%for biceps femoris muscle,97.52%for pectoralis major muscle,93.96%for triceps brachii muscle,and 91.63%for neck muscle,respectively.The panel also revealed excellent repeatability,reproducibility,sensitivity and universality to mammals and avian species.This study establishes an effective,accurate and low-cost identification technology for the identification of wild and farmed Common Pheasant,and also provides a reference for the development of identification methods for other species. 展开更多
关键词 capTIVE common Pheasant DNA methylation Methylation-sensitive high-resolution melting curve Source identification WILD
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Common Prosperity:A Goal for All Governments?
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作者 ROBERT WALKER 《China Today》 2026年第1期20-23,共4页
China’s“common prosperity”policy is a multidimensional pursuit of social and economic progress aimed at full realization by 2050.A CHIEVING common prosperity–prosperity that is universally shared–has been a longs... China’s“common prosperity”policy is a multidimensional pursuit of social and economic progress aimed at full realization by 2050.A CHIEVING common prosperity–prosperity that is universally shared–has been a longstanding aspiration of the Chinese government. 展开更多
关键词 multidimensional pursuit Chinese government chieving common prosperity prosperity social economic progress common prosperity universal sharing
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Comparison of Efficiencies of Two Production Lines with Buffering Capacities at Common and Separative Allocation
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作者 丁广太 朱永华 《Advances in Manufacturing》 SCIE CAS 2000年第S1期104-107,共4页
In this paper, the efficiencies of two production lines, one is with commonly, the other is with separately buffer capacities are compared, the result is that the former one is better than the latter
关键词 common buffer area kanban system maximum algebra serial production line
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猪圆环病毒4型Cap蛋白的原核表达及多克隆抗体制备
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作者 文英会 崔鸿博 +5 位作者 陈曦艋 陈红英 李金磊 赵丽 刘占通 闫志浩 《中国畜牧兽医》 北大核心 2025年第10期4904-4911,共8页
【目的】通过原核表达系统表达猪圆环病毒4型(Porcine circovirus type 4,PCV4)衣壳蛋白(Cap),并制备其多克隆抗体,为PCV4的防控提供技术支撑。【方法】基于PCV4开放阅读框2(ORF2)基因的免疫原区域设计1对特异性引物,通过PCR扩增获得PCV... 【目的】通过原核表达系统表达猪圆环病毒4型(Porcine circovirus type 4,PCV4)衣壳蛋白(Cap),并制备其多克隆抗体,为PCV4的防控提供技术支撑。【方法】基于PCV4开放阅读框2(ORF2)基因的免疫原区域设计1对特异性引物,通过PCR扩增获得PCV4 ORF2基因序列,并将其连接至pET-28a(+)载体,构建重组表达质粒pET-28a-ORF2;将经PCR和测序鉴定正确的重组质粒pET-28a-ORF2转化大肠杆菌BL21(DE3)感受态细胞,经1 mmol/L IPTG诱导表达重组Cap蛋白,利用SDS-PAGE分析诱导的重组蛋白产物。利用尿素纯化重组Cap蛋白并通过Western blotting鉴定;将纯化的重组Cap蛋白免疫新西兰大白兔制备多克隆抗体并进行Western blotting鉴定,应用间接ELISA法检测兔血清抗体效价。【结果】PCR扩增出大小为414 bp的PCV4 ORF 2基因片段,成功构建重组表达质粒pET-28a-ORF2。SDS-PAGE分析结果显示,诱导表达的重组Cap蛋白大小为16 ku;Western blotting结果表明制备的兔源多克隆抗体具有良好的免疫原性。间接ELISA检测显示,制备的兔血清抗体效价达1∶12800。【结论】本研究利用原核表达系统成功表达了PCV4 Cap蛋白并制备了多克隆抗体,试验结果为PCV4 Cap蛋白的深入研究以及后续开发PCV4基因工程亚单位疫苗、血清学诊断试剂等提供了物质基础。 展开更多
关键词 猪圆环病毒4型(PCV4) cap蛋白 原核表达 多克隆抗体
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基于北斗与CAP协议的高精度滑坡预警信息发布技术研究
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作者 黄建华 田爱国 +2 位作者 张姚 樊晶晶 官明霖 《信息产业报道》 2025年第4期0059-0061,共3页
为了将高精度滑坡预警信息实时发往灾区,降低滑坡对人员所造成的生命和财产损失,设计了一种基于北斗短报文通信方式发布高精度滑坡预警信息的方法。优化了滑坡预警信息的发布方式,将标准的北斗短报文协议和 CAP(Common Alerting Protoc... 为了将高精度滑坡预警信息实时发往灾区,降低滑坡对人员所造成的生命和财产损失,设计了一种基于北斗短报文通信方式发布高精度滑坡预警信息的方法。优化了滑坡预警信息的发布方式,将标准的北斗短报文协议和 CAP(Common Alerting Protocol)通用警报协议相结合,丰富和完善了预警信息的内容,对高精度滑坡预警信息进行了封装传输,并通过北斗终端自动回执北斗短报文预警消息,实现了基于互联网和北斗短报文通信的信息互联互通,为预警发布方式提供了应急备用手段,提高了滑坡预警信息发布的时效性和可靠性。 展开更多
关键词 滑坡 高精度 短报文协议 cap协议 预警信息发布
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表达GoAstV-2 Cap蛋白的重组FAdV-4的构建与鉴定 被引量:1
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作者 李星雨 李岩 +14 位作者 杨盼盼 刘俊杰 相梦佳 朱玉涛 邱路遥 乔麒龙 张伯顺 卜德新 韩城昊 于春梅 丛雁方 王增 李建丽 王白玉 赵军 《中国兽医学报》 北大核心 2025年第3期443-448,513,共7页
为构建表达鹅星状病毒基因2型(GoAstV-2)衣壳蛋白(Cap)的重组禽腺病毒4型(FAdV-4),本研究将GoAstV-2的Cap基因表达盒插入到含有FAdV-4感染性克隆p15A-cm-FAdV4-HNJZ中FAdV4基因组的1966 bp自然缺失区,将获得的重组感染性克隆p15A-cm-FAd... 为构建表达鹅星状病毒基因2型(GoAstV-2)衣壳蛋白(Cap)的重组禽腺病毒4型(FAdV-4),本研究将GoAstV-2的Cap基因表达盒插入到含有FAdV-4感染性克隆p15A-cm-FAdV4-HNJZ中FAdV4基因组的1966 bp自然缺失区,将获得的重组感染性克隆p15A-cm-FAdV4-HNJZ-Cap/GoAstV-2利用限制性内切酶线性化后转染鸡肝癌细胞系(chicken hepatoma cell line,LMH),拯救出表达Cap蛋白的重组病毒rFAdV4-Cap/GoAstV-2。将重组病毒在LMH细胞中连续传至第15代,提取重组病毒基因组DNA,用插入位点两侧的鉴定引物进行PCR和利用抗Cap蛋白多克隆抗体进行间接免疫荧光试验和Western blot对重组病毒进行鉴定,同时对重组病毒在LMH细胞中的复制动态进行了研究。结果显示,GoAstV-2的Cap基因能够稳定存在于重组病毒rFAdV4-Cap/GoAstV-2基因组中,而且获得稳定表达;重组病毒具有良好的体外复制能力。本研究所制备的重组病毒rFAdV4-Cap/GoAstV-2为研制防控鹅FAdV-4和GoAstV-2混合感染的新型高效二联灭活疫苗奠定了基础。 展开更多
关键词 鹅星状病毒基因2型 禽病毒4型 cap蛋白 二联灭活疫苗
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Reflection and operationalization of the common but differentiated responsibilities and respective capabilities principle in the transparency framework under the international climate change regime 被引量:4
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作者 WANG Tian GAO Xiang 《Advances in Climate Change Research》 SCIE CSCD 2018年第4期253-263,共11页
“Common but differentiated responsibilities and respective capabilities”(CBDRRC) is the most significant guiding principle in the international climate change regime, created by the United Nations Framework Conventi... “Common but differentiated responsibilities and respective capabilities”(CBDRRC) is the most significant guiding principle in the international climate change regime, created by the United Nations Framework Convention on Climate Change in 1992 and inherited by the Paris Agreement 24 years later. This paper examines the operationalization of the CBDRRC principle in one of the cornerstone rules of the regimedits transparency provisions, both in existing practice under the convention and possible evolvement in negotiations under the Paris Agreement, from the perspectives of both international rule-making and domestic implementation. The authors have found a continuous enhancement of the transparency framework since the 1990s, and gradual consolidation of a bifurcated system between developed and developing countries into a common one. The authors argue that the transparency framework, as part of the procedural rules, should be designed to facilitate transparent information sharing in accordance with substantive commitments under international climate change laws. Thus, it indirectly reflects historical responsibilities for climate change, while the framework should also be designed as feasible and reflective of the respective capabilities of nations. Finally, the evolution of the transparency framework will aim to enact common and enhanced provisions while differentiating between developed and developing countries in the near term, and greater transparency-related capacity-building for developing countries. 展开更多
关键词 INTERNATIONAL climate change law UNFCCC PARIS agreement TRANSPARENCY common but DIFFERENTIATED responsibilities and respective capabilities PRINCIPLE
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Efficacy and safety of Lianhuaqingwen capsules in high-risk common type COVID-19 pneumonia:A multicenter retrospective study 被引量:1
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作者 Bin Liu Liang Li +4 位作者 Lei Liu Min Ye Wei Zhang Xiangdong Zhou Qi Li 《Asian Pacific Journal of Tropical Medicine》 SCIE CAS 2023年第9期418-424,共7页
Objective:To evaluate the clinical safety and efficacy of Lianhuaqingwen(LHQW)capsules in patients with high-risk common type COVID-19 pneumonia.Methods:A retrospective multicenter study on 383 high-risk common type C... Objective:To evaluate the clinical safety and efficacy of Lianhuaqingwen(LHQW)capsules in patients with high-risk common type COVID-19 pneumonia.Methods:A retrospective multicenter study on 383 high-risk common type COVID-19 pneumonia cases was conducted.Patients were categorized as the standard treatment(SDT)group(n=168)and the LHQW+SDT group(n=215).The primary endpoint was the rate of symptom(fever,fatigue,coughing)recovery and the secondary endpoints included the time to symptom recovery,the proportion of patients with improvement in chest CT images,the proportion of patients with clinical cure,the timing and rate of negative conversion of SARS-CoV-2 RNA assay.Results:The recovery rate was significantly higher in the LHQW+SDT group as compared with the SDT group(89.7%vs.72.0%,P<0.01).The combined use of LHQW+SDT also showed shorter time for symptom recovery,as well as shorter time for individual symptom of fever,fatigue and coughing recovery than use of SDT alone.A higher proportion of patients in the LHQW+SDT group with improvements in chest CT images and clinical cure(77.7%vs.57.1%,P<0.01)but the proportion of patients deteriorating to severe cases(1%vs.25%,P<0.01)in this group was significant lower than those in the SDT group.No significant difference in negative conversion rate of viral assay results was observed(76.8%vs.75.0%,P>0.05).No serious adverse events were reported.Conclusions:LHQW capsules could be recommended to ameliorate clinical symptoms and reduce the rate of deteriorating to severe cases for high-risk common type COVID-19 pneumonia. 展开更多
关键词 Lianhuaqingwen capsules COVID-19 pneumonia High-risk common type Clinical efficacy
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表达猪圆环病毒3型Cap蛋白重组伪狂犬病病毒的构建及其对小鼠免疫效果评价
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作者 宋若琪 谭姗姗 +9 位作者 马瑞一 陈新新 宜越 马梦瑶 王颖 牛胜 闫芳 赵宇军 田文霞 任建乐 《畜牧兽医学报》 北大核心 2025年第11期5778-5788,共11页
为构建表达猪圆环病毒3型(PCV3)Cap蛋白的重组病毒载体疫苗,以猪伪狂犬病病毒(PRV)SX1910毒株为亲本毒株,利用CRISPR/Cas9和同源重组技术构建了缺失gE和gI基因并携带LoxP位点和GFP荧光标记的重组病毒SX1910-ΔgE/gI-GFP。然后利用Cre酶... 为构建表达猪圆环病毒3型(PCV3)Cap蛋白的重组病毒载体疫苗,以猪伪狂犬病病毒(PRV)SX1910毒株为亲本毒株,利用CRISPR/Cas9和同源重组技术构建了缺失gE和gI基因并携带LoxP位点和GFP荧光标记的重组病毒SX1910-ΔgE/gI-GFP。然后利用Cre酶将SX1910-ΔgE/gI-GFP的GFP表达盒置换为双拷贝的Cap基因表达盒,获得重组病毒rSX1910-ΔgE/gI-2Cap_(PCV3),并对其进行体外生物学特性和免疫效果分析。结果表明,rSX1910-ΔgE/gI-2Cap_(PCV3)体外增殖能力和噬斑大小显著小于亲本毒株SX1910。将rSX1910-ΔgE/gI-2Cap_(PCV3)免疫接种至6周龄雌性BALB/c小鼠进行免疫效果初步评价,结果显示,rSX1910-ΔgE/gI-2Cap_(PCV3)可有效刺激小鼠产生Cap蛋白的抗体,有效减轻_(PCV3)感染对肺部组织的损伤,显著降低组织病毒载量。以上数据表明,rSX1910-ΔgE/gI-2Cap_(PCV3)可对小鼠产生良好的免疫效果,并为PCV3新型疫苗的研究奠定了科学基础。 展开更多
关键词 猪圆环病毒3型 cap蛋白 猪伪狂犬病病毒 CRISPR Cas9 免疫保护
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Abundance and prey capture success of Common Terns(Sterna hirundo)and Pied Kingfishers(Ceryle rudis)in relation to water clarity in south-east coastal Ghana
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作者 Lars H.Holbech Francis Gbogbo Timothy Khan Aikins 《Avian Research》 CSCD 2018年第3期226-238,共13页
Background: Water clarity may negatively influence rate of plunge diving and prey capture success of piscivorous plunge-diving birds, and therefore has implications for their conservation in polluted urban wetlands. W... Background: Water clarity may negatively influence rate of plunge diving and prey capture success of piscivorous plunge-diving birds, and therefore has implications for their conservation in polluted urban wetlands. We studied the relationship between water clarity and the abundance and prey capture success of Pied Kingfishers(Ceryle rudis) and Common Terns(Sterna hirundo) in two polluted coastal waters of south-east Ghana—the Weija Lake and Densu Delta Ramsar Site.Methods: On each wetland, data on abundance and prey capture success of plunge-divers were collected in four spatio-temporal quadrats of 100 m × 100 m and analysed with concurrent measurements of water quality parameters using GLM regression with Pearson's correlation coefficients.Results: Mean prey capture success of Pied Kingfishers(34.7 e two species responded differently to water clarity. The± 13.1%) and Common Terns(35.3 abundance of Common Terns was± 11.0%) were similar but th significantly higher in less transparent/more turbid water while that of Pied Kingfishers showed no significant relationship with turbidity and transparency. In contrast, the prey capture success of Common Terns was neither related to transparency nor turbidity, as opposed to that of Pied Kingfishers which was significantly higher in more turbid/less transparent waters. Correlations between capture success and bird abundance, as well as capture attempts were insignificant, suggesting that increased fish abundance associated with cloudy water may not necessarily promote higher abundance and capture success of foraging birds. Thus, when foraging in less transparent water, capture success may depend more on predator avoidance by fish prey than lower prey detectability of foraging birds.Conclusion: Within a gradient of 15–51 cm transparency studied, lower water clarity did not constrain prey capture success of Common Terns and Pied Kingfishers. Further studies on the foraging ecology of plunge-divers in coastal Ghana are however required to make firm conclusions on the relationship between water clarity and foraging birds and fish prey abundances, as well as capture success. 展开更多
关键词 Coastal Ghana common Tern PIED Kingfisher PREY capture SUCCESS Water TURBIDITY and transparency
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吉林省PCV3野毒株遗传进化分析及其Cap蛋白对巨噬细胞自噬的影响
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作者 闫佳慧 韩建男 +3 位作者 孙浩 李文龙 苗丽娟 刘东旭 《中国动物检疫》 2025年第2期114-119,共6页
为了探究吉林省PCV3野毒株的起源及其衣壳蛋白(Cap蛋白)是否可以引起巨噬细胞自噬,对10株吉林省PCV3野毒株(JL-1~10)全基因组序列进行遗传进化分析,并通过Western blot和qPCR检测Cap蛋白转染巨噬细胞后其自噬相关基因和蛋白表达量的变... 为了探究吉林省PCV3野毒株的起源及其衣壳蛋白(Cap蛋白)是否可以引起巨噬细胞自噬,对10株吉林省PCV3野毒株(JL-1~10)全基因组序列进行遗传进化分析,并通过Western blot和qPCR检测Cap蛋白转染巨噬细胞后其自噬相关基因和蛋白表达量的变化。结果显示:所有PCV3参考毒株与2018年在日本发现的蝙蝠圆环病毒株LC456718均在524~598 nt位置发生重组,但在JL-1~10中并未观察到该重组现象;JL-1~10与其他宿主来源圆环病毒在不同的分支中聚集;ORF1与其他圆环病毒基因组表现出明显的保守性,但ORF2没有表现出明显的保守性;JL-10和JL-5最近的共同祖先株起源时间为1978年,其他8株的共同祖先株起源时间为1979年;Cap蛋白转染巨噬细胞后,LC3-Ⅱ表达量增加,p62表达量减少;Beclin-1和LC3蛋白基因转录水平极显著升高(P<0.01),Atg7的转录水平显著升高(P<0.05)。结果表明:10株吉林省PCV3野毒株大约起源于40年前(依据参考毒株年份推断),与其他宿主来源圆环病毒的起源不同;Cap蛋白可以促进巨噬细胞自噬,引起自噬相关基因转录水平的升高。 展开更多
关键词 PCV3 进化分析 自噬 cap蛋白
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Providing Biodiversity and Ecosystem Services through Common Pool Resource Management as Hybrid Institution: On Eco-Net Advances and Payments for ESS in Cultural Landscapes
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作者 Ernst-August Nuppenau 《Natural Resources》 2017年第7期478-512,共35页
In many rural areas the management of natural resources is confronted with the tragedy of the common problem;not only historically but also in modern times. Especially where biodiversity loss appears and ecosystem ser... In many rural areas the management of natural resources is confronted with the tragedy of the common problem;not only historically but also in modern times. Especially where biodiversity loss appears and ecosystem services (ESS) decline, the lack of public management might be related to inappropriate institutional setups. Two distinct directions of thought prevail on the subject. On one hand, proponents of property rights and minimal state intervention eagerly analyse the feat of modern institutions and view private property and payments for ecosystem services (PES) as solution. On the other hand, common pool resource management (CPM) has regained interest because nature is not a straight commodity and cooperation in ESS provision is needed (partly also to facilitate PES). In this paper, the two aspects are combined in a hybrid institution. We suggest a new way of approaching institutional questions in ESS provision as synthesis of private and publically controlled ESS provision. It is contemplated as ESS governance of local eco-nets given the potential for inclusion of public management. In principle, the result is a controlled framework of land sharing between farm land (private ownership) and communally managed?land (public ownership). Some land is devoted to hedges, wetlands, etc. Land is an immobile resource and can be used for EESs based on planned species prevalence, whereas communities compete also for labour which can move (or not). Governance is acting in competing constituencies and is a mean to control the regulating entities (public ESS management). At a meta-level we combine the need for public management with advantages of a competitive neo-classical framework. This contribution to CPM investigates a model of a group whose well-being is based on ESS provision in a cultural landscape. By statutory regulations, land (field margins), is ex-tracted from farms for ESS;in particular a leader (called reeve) guides farmers. Two institutions are compared: (1) labour in public land for ESS based farming (i.e.?it is controlled by public authority), or (2) it can migrate seeking higher rents in neighbouring communities. 展开更多
关键词 common Property Management Competition between Communities ESS REGULATIONS
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Capital mobility in Latin American and Caribbean countries: new evidence from dynamic common correlated effects panel data modeling
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作者 Vasudeva N.R.Murthy Natalya Ketenci 《Financial Innovation》 2020年第1期895-911,共17页
This study investigates the degree of capital mobility in a panel of 16 Latin American and 4 Caribbean countries during 1960 to 2017 against the backdrop of the Feldstein-Horioka hypothesis by applying recent panel da... This study investigates the degree of capital mobility in a panel of 16 Latin American and 4 Caribbean countries during 1960 to 2017 against the backdrop of the Feldstein-Horioka hypothesis by applying recent panel data techniques.This is the first study on capital mobility in Latin American and Caribbean countries to employ the recently developed panel data procedure of the dynamic common correlated effects modeling technique of Chudik and Pesaran(J Econ 188:393–420,2015)and the error-correction testing of Gengenbach,Urbain,and Westerlund(Panel error correction testing with global stochastic trends,2008,J Appl Econ 31:982–1004,2016).These approaches address the serious panel data econometric issues of crosssection dependence,slope heterogeneity,nonstationarity,and endogeneity in a multifactor error-structure framework.The empirical findings of this study reveal a low average(mean)savings–retention coefficient for the panel as a whole and for most individual countries,as well as indicating a cointegration relationship between saving and investment ratios.The results indicate that there is a relatively high degree of capital mobility in the Latin American and Caribbean countries in the short run,while the long-run solvency condition is maintained,which is due to reduced frictions in goods and services markets causing increase competition.Increased capital mobility in these countries can promote economic growth and hasten the process of globalization by creating a conducive economic environment for FDI in these countries. 展开更多
关键词 Dynamic common correlated effects Panel-error correction modeling Cross-sectional dependence Unobserved common factors Slope heterogeneity capital mobility
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面向长时间CAP的机务保障资源配置方法
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作者 游亮 王莉莉 项华春 《火力与指挥控制》 北大核心 2025年第11期65-77,共13页
针对现有保障资源配置考虑实际任务需求较少的问题,以长时间空中战斗巡逻任务为例,提出一种面向长时间CAP的机务保障资源配置方法。构建了带空中加油的长时间空中战斗巡逻任务场景,并分析了作战任务对机务保障资源配置的影响机理;分析... 针对现有保障资源配置考虑实际任务需求较少的问题,以长时间空中战斗巡逻任务为例,提出一种面向长时间CAP的机务保障资源配置方法。构建了带空中加油的长时间空中战斗巡逻任务场景,并分析了作战任务对机务保障资源配置的影响机理;分析了编队任务过程和资源配置流程,推算了各任务阶段持续时长,明确了各保障工序的资源运用状况;基于排队理论构建了保障装/设备配置模型,基于保障工作量构建了人员配置模型,并利用工作均衡度对人员配置数量进行优化;分析了模型评价指标和约束条件,给出了资源配置流程,并通过算例验证了方法的科学性和有效性。 展开更多
关键词 维修保障 资源配置 空中战斗巡逻 作战场景 排队论
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Clinical Effect of Yinhuang Qingfei Capsules in Treatment of Asymptomatic and Mild/Common Severe Acute Respiratory Syndrome Coronavirus 2 Infection:An Analysis of 242 Cases
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作者 Feibao CHEN Changming ZHANG +6 位作者 Chen CHEN Ping JI Chanjuan ZHANG Yanbo LI Hao WANG Baobao GU Yanting YANG 《Medicinal Plant》 2024年第2期61-64,共4页
[Objectives]To investigate the clinical effect of Yinhuang Qingfei capsules in the treatment of asymptomatic and mild/common severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)infection.[Methods]A total of 362... [Objectives]To investigate the clinical effect of Yinhuang Qingfei capsules in the treatment of asymptomatic and mild/common severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)infection.[Methods]A total of 362 patients with SARS-CoV-2 infection were divided into the treatment group with 242 patients and control group with 120 patients according to their treatment regimen.The patients in the control group were given standard treatment regimen and those in the treatment group were given Yinhuang Qingfei capsules in addition to the treatment in the control group.The two groups were observed in terms of average length of hospital stay,mean time for nucleic acid clearance,TCM syndrome score,and progression to severe/critical illness,and clinical outcome was compared between the two groups.[Results]There was a significant difference in the overall response rate between the treatment group and the control group[97.52%(236/242)vs 95.00%(114/120),P<0.05].Compared with the control group,the treatment group had significantly shorter length of hospital stay and time for nucleic acid clearance(P<0.05).After 7 days of treatment,both groups had a significant change in TCM syndrome score,and there was a significant difference in TCM syndrome score between the two groups(P<0.05);after 15 days of treatment,both groups had a TCM syndrome score of 0.Progression to severe/critical illness was not observed in either group.[Conclusions]Compared with the standard treatment regimen alone,standard treatment regimen combined with Yinhuang Qingfei capsules can effectively shorten the length of hospital stay and time for nucleic acid clearance and improve TCM symptoms in patients with asymptomatic and mild/common SARS-CoV-2 infection. 展开更多
关键词 Severe acute respiratory syndrome coronavirus 2 infection ASYMPTOMATIC Mild/common Yinhuang Qingfei capsules
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表达鸽圆环病毒Cap基因重组DNA候选疫苗的构建及免疫原性
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作者 段姝宇 郭东升 +5 位作者 林子誉 王爱夺 王佳音 宗宪春 李金蔓 王建忠 《中国兽医学报》 北大核心 2025年第10期2148-2155,共8页
鸽圆环病毒(pigeon circovirus,PiCV)在全球广泛流行,是引发幼鸽综合征(YPDS)的主要病原,导致严重的免疫抑制和高病死率。由于PiCV无法进行细胞培养,传统疫苗的开发严重受限,至今尚无有效疫苗。为研发新型PiCV DNA疫苗,本研究克隆了不... 鸽圆环病毒(pigeon circovirus,PiCV)在全球广泛流行,是引发幼鸽综合征(YPDS)的主要病原,导致严重的免疫抑制和高病死率。由于PiCV无法进行细胞培养,传统疫苗的开发严重受限,至今尚无有效疫苗。为研发新型PiCV DNA疫苗,本研究克隆了不含核定位信号(NLS)的ΔCap基因,并在其C端融合新城疫病毒(NDV)F蛋白跨膜区和胞内区(ΔCap-TMCT),分别构建了胞内表达型候选DNA疫苗pCAGG-ΔCap和细胞表面表达型候选疫苗pCAGG-ΔCapt。通过间接免疫荧光和Western blot鉴定,证实2种重组质粒在DF1细胞中均可成功表达。进一步免疫小鼠,通过ELISA、流式细胞术和ELISpot检测发现,与pCAGG-ΔCap相比,pCAGG-ΔCapt能显著诱导机体产生更高水平的特异性IgG抗体、T细胞应答和细胞因子分泌,表明将ΔCap-TMCT融合蛋白定位于细胞表面能有效提高其免疫原性,具有作为PiCV DNA疫苗的开发潜力。本研究为PiCV DNA疫苗的设计与研发提供了新的策略和理论依据。 展开更多
关键词 鸽圆环病毒 cap蛋白 DNA疫苗 免疫原性
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猪圆环病毒2型、3型和4型检测的三重荧光定量PCR建立及Cap基因变异分析
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作者 王鑫雨 李佳妮 +6 位作者 薄惠文 马琛琛 武文娟 于永乐 杨海燕 马清霞 张传美 《畜牧兽医学报》 北大核心 2025年第11期5789-5800,共12页
旨在建立一种快速简便、可同时检测猪圆环病毒(porcine circovirus,PCV)2型、3型和4型三种病原的三重荧光定量PCR检测方法,并应用建立的方法对临床疑似感染PCV的样本进行PCV2、PCV3及PCV4的检测和分子流行病学分析。根据PCV2及PCV3的Re... 旨在建立一种快速简便、可同时检测猪圆环病毒(porcine circovirus,PCV)2型、3型和4型三种病原的三重荧光定量PCR检测方法,并应用建立的方法对临床疑似感染PCV的样本进行PCV2、PCV3及PCV4的检测和分子流行病学分析。根据PCV2及PCV3的Rep蛋白(replicase protein,Rep)基因序列、PCV4的Cap蛋白(capsid protein,Cap)基因序列,设计合成3对特异性引物和3种不同荧光基团标记的TaqMan探针,进行反应体系和反应条件的优化,构建阳性质粒及标准曲线,评价方法的特异性、敏感性和重复性。结果表明,建立的PCV三重荧光定量PCR检测方法特异性强,不同亚型PCV和常见猪病原体均无交叉反应;检测下限均为1.0×10^(2)copies·μL^(-1),批内和批间变异系数均小于2.0%,重复性良好。对检测为阳性的样品进行Cap蛋白基因序列扩增、克隆和测序,获得41条序列,其中11条PCV2a,8条PCV2b,15条PCV2d及7条PCV3a。34条PCV2 Cap蛋白相似性为96.7%~99.7%,7条PCV3 Cap蛋白相似性为97.2%~99.9%。本试验成功建立了一种PCV三重荧光定量PCR,且可检测出不同基因型的猪圆环病毒的混合感染,PCV2d、PCV3a当前依然为国内优势基因型,为临床PCV的准确诊断提供了更快速更精准的检测方法。 展开更多
关键词 猪圆环病毒 荧光定量PCR cap基因 遗传进化分析
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CAP1400主管道研制中大型不锈钢锻件制造技术的提升
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作者 郑建能 陈红宇 +3 位作者 刘鑫刚 周夏 李连龙 王凯 《大型铸锻件》 2025年第4期7-10,21,共5页
国内企业依托CAP1400主管道制造技术研制,包括120 t级超大型超低碳控氮奥氏体不锈钢电渣重熔技术、大型异形奥氏体不锈钢坯料锻造技术、大型厚壁承压管道弯曲成形技术、大型异形奥氏体不锈钢管道热处理变形控制及性能控制技术,形成系统... 国内企业依托CAP1400主管道制造技术研制,包括120 t级超大型超低碳控氮奥氏体不锈钢电渣重熔技术、大型异形奥氏体不锈钢坯料锻造技术、大型厚壁承压管道弯曲成形技术、大型异形奥氏体不锈钢管道热处理变形控制及性能控制技术,形成系统、稳定的大型核电锻造主管道制造技术。研究成果推广应用于多种高端不锈钢锻件制造,使我国大型不锈钢锻件制造技术得到显著提升。 展开更多
关键词 cap1400 主管道 不锈钢锻件 制造技术
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公路预防性养护中CAP抗滑封层技术的应用效果分析 被引量:1
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作者 何星星 《交通世界》 2025年第4期114-116,共3页
为有效改善旧沥青路面路用性能,提高沥青废料循环使用率,降低公路建设成本,以某高速公路项目为背景,选取局部病害路段作为试验段,对沥青还原剂(CAP)抗滑封层技术的具体应用进行综合探究,介绍了原材料及施工工艺要求,并对沥青路面CAP再... 为有效改善旧沥青路面路用性能,提高沥青废料循环使用率,降低公路建设成本,以某高速公路项目为背景,选取局部病害路段作为试验段,对沥青还原剂(CAP)抗滑封层技术的具体应用进行综合探究,介绍了原材料及施工工艺要求,并对沥青路面CAP再生沥青封层处理前后的抗滑及抗车辙性能进行分阶段检测评定。检测结果显示:①采取CAP抗滑封层处理后,沥青路面车辙指数(RDI)及抗滑指数(SRI)均有明显增大,路面抗变形及抗滑能力得到提升;②相较于CAP再生沥青封层交工阶段,道路运营2年后,沥青路面车辙指数(RDI)及抗滑指数(SRI)下降幅度较小,充分表明CAP抗滑封层处理后的沥青路面具有良好的抗滑、抗变形及耐久性能。 展开更多
关键词 预防性养护 cap 抗滑性能 抗车辙性能
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