检索结果-南通市图书馆

Fuzheng Huayu preparation(扶正化瘀胶囊/片)combined with tenofovir disoproxil fumarate on hepatitis B:a systematic review and Meta-analysis

引用

Journal of Traditional Chinese Medicine 2023年第2期43卷 221-230页

作者： zhang Junli HE Ying Zhang Xia FU Hongfang HU xiaoyu Department of Infectious Diseases Hospital of Chengdu University of Traditional Chinese MedicineChengdu 610072China

OBJECTIVE:To systematically evaluate the effectiveness of Fuzheng Huayu preparation(扶正化瘀胶囊/片,FZHY)plus tenofovir disoproxil fumarate(TDF)on hepatitis B.METHODS:Numerous databases—PubM ed,Embase,Cochrane Library,China National Knowledge Infrastructure Database,WanFang Database,China Science and Technology Journal Database,and China Biological Medicine Database—were searched to identify the randomized controlled trials published from the inception of the database to November 2021.Two researchers independently conducted literature screening,data extraction,and bias risk assessment.Rev Man 5.4 software was used for Meta-analysis.RESULTS:Eight studies involving 990 patients met the inclusion criteria in the current Meta-analysis.Levels of alanine transaminase,aspartate aminotransferase,total bilirubin,hyaluronic acid,typeⅢprocollagen,laminin,and type IV collagen after combination therapy were significantly lower than those after TDF therapy alone.However,albumin levels did not differ significantly between the two regimens.Subgroup analysis based on disease progression suggested that the combination therapy improved albumin levels in patients with chronic hepatitis B but not in patients with hepatitis B-related cirrhosis.Moreover,subgroup analysis based on treatment duration suggested that the albumin levels were increased and the typeⅢprocollagen levels were decreased with the>24-week combination therapy but not with the≤24-week combination therapy.CONCLUSIONS:A combination regimen of TDF and FZHY is more effective in treating hepatitis B than TDF alone.The combination therapy can effectively alleviate hepatic fibrosis and improve liver function.However,more standardized,highquality studies with larger sample sizes are warranted to validate the study results.

关键词： Fuzheng Huayu preparation Tenofovir liver cirrhosis liver function systematic review Meta-analysis

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Finiteness Conditions and Relative Singularity Categories

引用

Acta Mathematica Sinica,English Series 2022年第8期38卷 1436-1446页

作者： Chun xia zhang School of Mathematical Sciences Chongqing Normal UniversityChongqing 401331P.R.China

We introduce the n-pure projective(resp.,injective)dimension of complexes in n-pure derived categories,and give some criteria for computing these dimensions in terms of the n-pure projective(resp.,injective)resolutions(resp.,coresolutions)and n-pure derived functors.As a consequence,we get some equivalent characterizations for the finiteness of n-pure global dimension of rings.Finally,we study Verdier quotient of bounded n-pure derived category modulo the bounded homotopy category of n-pure projective modules,which is called an n-pure singularity category since it can reflect the finiteness of n-pure global dimension of rings.

关键词： n-pure projective dimension n-pure injective dimension n-pure global dimension n-pure derived category n-pure singularity category

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Density-matrix-formalism based scheme for polarization mode dispersion monitoring and compensation in optical fiber communication systems

引用

Optoelectronics Letters 2023年第12期19卷 739-743页

作者： DU Qiuping Zhang Xia GUO Yao YANG Zhenshan Zhang Xiaoguang School of Physics Science and Information Engineering Shandong Provincial Key Laboratory of Optical Communications Science and TechnologyLiaocheng UniversityLiaocheng 252000China State Key Laboratory of Information Photonics and Optical Communications Beijing University of Posts and TelecommunicationsBeijing 100876China

We propose a density-matrix-formalism based scheme to study polarization mode dispersion(PMD)monitoring and compensation in optical fiber communication systems.Compared to traditional monitoring and compensation schemes based on the PMD vector in the Stokes space,the scheme we proposed requires no auxiliary matrices and can be handily extended to any higher-dimensional modal space,which is advantageous in mode-division multiplexing(MDM)systems.A 28 GBaud polarization division multiplexing quadrature phase-shift keying(PDM-QPSK)coherent simulation system is built to demonstrate that our scheme can implement the monitoring and compensation of 170 ps large differential-group-delay(DGD)that far exceeds the typical DGDs in practical optical communication systems.The results verify the effectiveness of the density-matrix-formalism based scheme in PMD monitoring and compensation,thus pave the way for further applications of the scheme in more general MDM optical communication systems.

关键词： polarization communication fiber

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

张斌霞调治慢性失眠经验

引用

河南中医 2020年第4期40卷 548-551页

作者：吴霞霜张斌霞南京中医药大学江苏南京210023 常州市中医医院江苏常州213000

张斌霞教授治疗慢性失眠遵循平调阴阳,补虚泻实的总治法,认为慢性失眠发病多与心、肝、脾、肾四脏密切相关,以心肾为根本,肝胆为枢机,脾胃为通路,在治疗过程中根据辨证,侧重有所不同。张教授治疗失眠强调以阴阳为纲,认为不论采用何种治... 详细信息

张斌霞教授治疗慢性失眠遵循平调阴阳,补虚泻实的总治法,认为慢性失眠发病多与心、肝、脾、肾四脏密切相关,以心肾为根本,肝胆为枢机,脾胃为通路,在治疗过程中根据辨证,侧重有所不同。张教授治疗失眠强调以阴阳为纲,认为不论采用何种治疗都应遵循"平调阴阳,引阳入阴"的治疗大法,不可忽视阴阳变化,而一味安神。张教授治疗慢性失眠,以疏利肝胆为法,方用柴胡加龙骨牡蛎汤加减,尤爱甘松一药,因其性甘温,除醒脾健胃外,还可理气开郁,有肝脾同调之功。张教授治疗慢性失眠避用破气消积药物,取厚朴花而非厚朴,因厚朴花理气化湿无厚朴燥湿下气之力,花类药物质轻升散,可更好助脾胃升发清阳。张教授认为,慢性失眠病程较长,具有久病多虚、久病及肾、久病入络、久病致郁、久郁生痰特点,补虚多从肾入手,根据病邪性质,选择性配伍化瘀通络、疏肝解郁、理气化痰之品,常有良效。

关键词：慢性失眠平调阴阳引阳入阴补虚泻实柴胡加龙骨牡蛎汤甘松张斌霞

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Seasonal thermal energy storage using natural structures:GIS-based potential assessment for northern China

引用

Building Simulation 2024年第4期17卷 561-574页

作者： Yichi zhang Jianjun xia Midea HVAC Heating&Ventilation Equipment Co. LtdFoshan528311China Building Energy Research Center Tsinghua UniversityBeijing100084China

Seasonal thermal energy storage(STES)allows storing heat for long-term and thus promotes the shifting of waste heat resources from summer to winter to decarbonize the district heating(DH)systems.Despite being a promising solution for sustainable energy system,large-scale STES for urban regions is lacking due to the relatively high initial investment and extensive land use.To close the gap,this study assesses the potentials of using two naturally available structures for STES,namely valley and ground pit sites.Based on geographical information system(GIS)methods,the available locations are searched from digital elevation model and selected considering several criteria from land uses and construction difficulties.The costs of dams to impound the reservoir and the yielded storage capacities are then quantified to guide the choice of suitable sites.The assessment is conducted for the northern China where DH systems and significant seasonal differences of energy demand exist.In total,2,273 valley sites and 75 ground pit sites are finally identified with the energy storage capacity of 15.2 billion GJ,which is much larger than the existing DH demand in northern China.The results also prove that 682 valley sites can be achieved with a dam cost lower than 20 CNY/m^(3).By conducting sensitivity analysis on the design dam wall height and elevations,the choices of available natural structures are expanded but practical issues about water pressures and constructions are also found.Furthermore,the identified sites are geographically mapped with nearest urban regions to reveal their roles in the DH systems.In general,560 urban regions are found with potential STES units and most of them have STES storage capacities larger than their own DH demand.The novel planning methodology of this study and publicly available datasets create possibilities for the implementations of large-scale STES in urban DH systems.

关键词： seasonal thermal energy storage geographical information system district heating water reservoir

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Microbiome and intestinal pathophysiology in post-acute sequelae of COVID-19

引用

Genes & Diseases 2024年第3期11卷 220-231页

作者： Jilei zhang Yongguo zhang Yinglin xia Jun Sun Division of Gastroenterology and Hepatology Department of MedicineUniversity of Ilinois ChicagoIL60612USA Uic Cancer Center Department of Microbiology and ImmunologyUniversity of Ilinois ChicagoChicagoIL60612USA Jesse Brown VA Medical Center ChicagoIL60612USA

Long CoVID,also known for post-acute sequelae of CovID-19,describes the people who have the signs and symptoms that continue or develop after the acute coviD-19 phase.Long CovID patients suffer from an inflammation or host responses towards the virus approx-imately 4 weeks after initial infection with the SARS CoV-2 virus and continue for an unchar-acterized duration.Anyone infected with CovID-19 before could experience long-CcovID conditions,including the patients who were infected with SARS CoV-2 virus confirmed by tests and those who never knew they had an infection early.People with long CoviD may experience health problems from different types and combinations of symptoms over time,such as fa-tigue,dyspnea,cognitive impairments,and gastrointestinal(Gl)symptoms(e.g.,nausea,vom-iting,diarrhea,decreased or loss of appetite,abdominal pain,and dysgeusia).The critical role of the microbiome in these Gl symptoms and long CovID were reported in clinical patients and experimental models.Here,we provide an overall view of the critical role of the Gl tract and microbiome in the development of long COVID,including the clinical Gl symptoms in patients,dysbiosis,viral-microbiome interactions,barrier function,and inflammatory bowel disease patients with long CovID.We highlight the potential mechanisms and possible treatment based on Gl health and microbiome.Finally,we discuss challenges and future direction in the long CoVID clinic and research.

关键词： Gastrointestinal symptoms Gl tract Gut microbiome Inflammatorybowel diseases Intestinal barrier Long CoVID Metabolites Tight junctions

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Elemental Compositions of Clinopyroxenes from Southern Okinawa Trough Basalt:Implications for Magmatism and Structural Environment in an Initial Back-Arc Basin

引用

Journal of Ocean University of China 2024年第3期23卷 643-653页

作者： GUO Kun ZHAI Shikui FAN Di Zhang Xia zhang Yu ZHU Zhimin Laoshan Laboratory Qingdao 266237China Key Laboratory of Submarine Geosciences and Prospecting Techniques Ministry of EducationCollege of Marine GeosciencesOcean University of ChinaQingdao 266100China Key Laboratory of Submarine Geosciences&Second Institute of Oceanography Ministry of Natural ResourcesHangzhou 310012China

The major and trace elemental compositions of clinopyroxene from basalt were used to characterize the nature of the primitive magma and structural environment beneath the southern Okinawa Trough(SOT),which is an initial back-arc basin at a continental margin.The clinopyroxenes in the basalt were augite with variable Mg^(#)contents(73.37-78.22).The regular variations in major oxide contents(i.e.,CaO,FeO,TiO_(2),and Cr)with decreasing Mg#implied that the clinopyroxenes evolved from being enriched in Mg,Ca,and Cr to being enriched in Fe and Ti.The clinopyroxenes had relatively low rare earth element concentrations(7.51×10^(-6) to 12.68×10^(-6))and negative Eu anomalies(δEu=0.67-0.95).The Kd_(cpx) values of clinopyroxenes(0.2-0.26),which were used to examine whether the clinopyroxene was equilibrated with its host basalt,demonstrate that these clinopyroxene phenocrysts were not captured crystals but were instead produced by crystallization differentiation of the magma.The calculated clinopyroxene crystallization temperatures showed a narrow range of 990-1061℃,and their crystallization pressures ranged from 2.0 to 3.2 kbar.The geochemistry features of these clinopyroxenes indicated that the parent magma belonged to the subalkaline tholeiitic magma series and suggested that the magma experienced crystallization differentiation of olivine,plagioclase,and clinopyroxene,where the crystallization of plagioclase occurred earlier than that of clinopyroxene.Combined with geophysical data,this research on primitive magma and its crystallization differentiation from clinopyroxene indicates that the SOT is in the stage of‘seafloor spreading’and that basaltic rocks produced from tholeiitic magma represent the generation of oceanic crust.

关键词： trace elements clinopyroxenes southern Okinawa Trough seafloor spreading back-arc basin

来源：

维普期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

Robust optimal dispatch strategy of integrated energy system considering CHP-P2G-CCS

引用

Global Energy Interconnection 2024年第1期7卷 14-24页

作者： Bin zhang Yihui xia xiaotao Peng School of Electrical Engineering Naval University of EngineeringWuhan 430000P.R.China School of Electrical Engineering Wuhan UniversityWuhan 430072P.R.China

Integrated energy systems(IESs)can improve energy efficiency and reduce carbon emissions,essential for achieving peak carbon emissions and carbon neutrality.This study investigated the characteristics of the CHP model considering P2G and carbon capture systems,and a two-stage robust optimization model of the electricity-heat-gascold integrated energy system was developed.First,a CHP model considering the P2G and carbon capture system was established,and the electric-thermal coupling characteristics and P2G capacity constraints of the model were derived,which proved that the model could weaken the electric-thermal coupling characteristics,increase the electric power regulation range,and reduce carbon emissions.Subsequently,a two-stage robust optimal scheduling model of an IES was constructed,in which the objective function in the day-ahead scheduling stage was to minimize the start-up and shutdown costs.The objective function in the real-time scheduling stage was to minimize the equipment operating costs,carbon emission costs,wind curtailment,and solar curtailment costs,considering multiple uncertainties.Finally,after the objective function is linearized with a ψ-piecewise method,the model is solved based on the C&CG algorithm.Simulation results show that the proposed model can effectively absorb renewable energy and reduce the total cost of the system.

关键词： Combined heat and power Power-to-gas Carbon capture system Integrated energy system Robust optimization

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

中国科学技术期刊编辑学会工作概述

引用

中国期刊年鉴 2021年第1期20卷 15-17页

作者：张霞任胜利不详

一、党建强会2020年2月初,中国科学技术期刊编辑学会(以下简称“学会”)党委积极响应中国科协的号召,向学会会员、理事以及分支机构发出《关于在新型冠状病毒感染肺炎疫情防控阻击战中加强党的领导、发挥学会资源优势作用的通知》,要求... 详细信息

一、党建强会2020年2月初,中国科学技术期刊编辑学会(以下简称“学会”)党委积极响应中国科协的号召,向学会会员、理事以及分支机构发出《关于在新型冠状病毒感染肺炎疫情防控阻击战中加强党的领导、发挥学会资源优势作用的通知》,要求中国科学技术期刊编辑学会全体会员必须认真学习并贯彻执行中共中央《关于加强党的领导、为打赢疫情防控阻击战提供坚强政治保证的通知》,按照中国科协关于疫情防控工作的要求和部署,把打赢疫情防控阻击战作为当前的重大政治任务,确保党中央重大决策部署贯彻落实,为打赢疫情防控阻击战作出贡献。

关键词：加强党的领导疫情防控中国科协科学技术全体会员工作概述学会会员分支机构

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Capturing the baroclinic effect in non-Boussinesq gravity currents

引用

Theoretical & Applied Mechanics Letters 2022年第1期12卷 10-16页

作者： Shengqi zhang Zhenhua xia State Key Laboratory for Turbulence and Complex Systems College of EngineeringPeking UniversityBeijing 100871China Department of Engineering Mechanics Zhejiang UniversityHangzhou 310027China

Direct numerical simulations of two-dimensional gravity currents with small and medium density variations are performed using different non-Boussinesq buoyancy approximations. Taking the full low-Machnumber approximation as the reference, the accuracy of several buoyancy terms are examined. It is found that all considered buoyancy terms performed well in the cases with small density variation. In the cases with medium density variation, the classical gravitational Boussinesq’s buoyancy term showed the lack of accuracy, and a simple correction did not make any improvement. In contrast, the recently introduced second-order buoyancy term showed a significantly higher accuracy. The present results and our previous derivations indicate that simple algebraic buoyancy approximations extended from the Boussinesq’s gravitational buoyancy are unlikely to achieve an accuracy beyond first order. Instead, it seems necessary to solve at least one extra Poisson equation for buoyancy terms to capture the higher-order baroclinic effect. An approximate analysis is also provided to show the leading term of the non-Boussinesq effect corresponding to gravity.

关键词： Baroclinic effect Gravity current

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：