检索结果-南通市图书馆

Correlation between the rock mass properties and maximum horizontal stress:A case study of overcoring stress measurements

引用

International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 39-48页

作者： Peng li Meifeng Cai Shengjun Miao Yuan li Yu Wang Key Laboratory of Ministry of Education for Efficient Mining and Safety of Metal Mines University of Science and Technology BeijingBeijing 100083China State Key Laboratory of Coal Resources and Safe Mining China University of Mining and TechnologyXuzhou 221116China

Understanding the mechanical properties of the lithologies is crucial to accurately determine the horizontal stress *** investigate the correlation between the rock mass properties and maximum horizontal stress,the three-dimensional(3D)stress tensors at 89 measuring points determined using an improved overcoring technique in nine mines in China were adopted,a newly defined characteristic parameter C_(ERP)was proposed as an indicator for evaluating the structural properties of rock masses,and a fuzzy relation matrix was established using the information distribution *** results indicate that both the vertical stress and horizontal stress exhibit a good linear growth relationship with *** is no remarkable correlation between the elastic modulus,Poisson's ratio and depth,and the distribution of data points is scattered and ***,there is no obvious relationship between the rock quality designation(RQD)and *** maximum horizontal stress σ_(H) is a function of rock properties,showing a certain linear relationship with the C_(ERP)at the same *** addition,the overall change trend of σ_(H) determined by the established fuzzy identification method is to increase with the increase of C_(ERP).The fuzzy identification method also demonstrates a relatively detailed local relationship betweenσ_H and C_(ERP),and the predicted curve rises in a fluctuating way,which is in accord well with the measured stress data.

关键词： overcoring stress measurements elastic modulus Poisson's ratio rock quality designation maximum horizontal stress fuzzy identification

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

卵巢成熟型畸胎瘤局部鳞癌伴肉瘤样变伴自发破裂1例并文献分析

引用

中国肿瘤外科杂志 2023年第2期15卷 184-187页

作者：李爱莲周清清居蓉南京医科大学附属江宁医院妇产科江苏南京211100 南京医科大学附属江宁医院影像科江苏南京211100

卵巢成熟型囊性畸胎瘤是一种常见的女性生殖细胞良性肿瘤,其恶变少见,伴有肿瘤自发性破裂更为罕见,目前尚无统一的治疗方案。本文报道1例卵巢成熟型畸胎瘤局部鳞癌伴肉瘤样变伴自发破裂的诊疗过程,并文献回顾。

关键词：卵巢成熟型畸胎瘤恶变自发性破裂感染

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

Reversible li2C2O4 product regulation in li–CO2 batteries using single-atom alloy engineering

引用

Science China Chemistry 2025年

作者： Xinxin Zhang Yu Wang Yafei li Jiangsu Key Laboratory of New Power Batteries Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials School of Chemistry and Materials Science Nanjing Normal University

The efficiency of lithium-carbon dioxide （li–CO2） batteries is limited by the sluggish generation/decomposition kinetics of the discharge products （i.e.,li2CO3and carbon） despite the use of state-of-the-art noble metal （NM） ***2C2O4has emerged as a promising alternative product;however,the thermodynamic instability of li2C2O4causes it to generally appear as an intermediate in li2CO3pathways rather than a product during ***,using comprehensive first-principles calculations,we report tailoring the discharge products of li–CO2batteries to li2C2O4via single-atom alloy （SAA） engineering,in which NM-doped copper SAAs （NM1Cu） are constructed for *** NM1Cu catalysts display a free-atom-like narrow d-band state and unique charge distribution over the solute NM1atom and the surrounding matrix Cu *** an optimized electronic structure is substantial in Ru1Cu and Ir1Cu,which is conducive to the co-activation and coupling of *** lithiation of*CO2intermediate that breaks the charge symmetry of the central C species can further reduce the kinetic barriers of the C–C *** advantages promote li2C2O4generation on Ru1Cu and Ir1Cu while suppress its subsequent ***,they exhibit low theoretical overpotentials and enable facile delithiation under normal charging *** work proposes a universal principle of manipulating electronic structures to achieve li2C2O4product,which provides practical guidance for the development of li–CO2batteries.

关键词：

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Design of a cationic accelerator enabling ultrafast ion diffusion kinetics in aqueous zinc-ion batteries

引用

Journal of Energy Chemistry 2025年第1期100卷 377-384页

作者： Yawei Xiao Qianqian Gu Haoyu li Mengyao li Yude Wang National Center for International Research on Photoelectric and Energy Materials School of Materials and Energy Yunnan University Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources School of Chemistry and Chemical Engineering Hainan University College of Chemical Engineering Fuzhou University Yunnan Key Laboratory of Carbon Neutrality and Green Low-carbon Technologies Yunnan University

Aqueous zinc-ion batteries are highly favored for grid-level energy storage owing to their low cost and high safety,but their practical application is limited by slow ion *** address this,a strategy has been developed to create a cation-accelerating electric field on the surface of the cathode to achieve ultrafast Zn2+diffusion *** employing electrodeposition to coat MoS2on the surface of BaV6O16·3H2O nanowires,the directional built-in electric field generated at the heterointerface acts as a cation accelerator,continuously accelerating Zn2+diffusion into the active *** optimized Zn2+diffusion coefficient in CC@BaV-6O16·3H2O@MoS2(7.5×10～8cm2s-1) surpasses that of most reported V-based ***,MoS2serving as a cathodic armor extends the cycling life of the Zn-CC@BaV6O16·3H2O@MoS2full batteries to over 10000 *** work provides valuable insights into optimizing ion diffusion kinetics for high-performance energy storage devices.

关键词： Zinc alloys

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Targeting epigenetic mechanisms in amyloid-β-mediated Alzheimer’s pathophysiology:unveiling therapeutic potential

引用

Neural Regeneration Research 2025年第1期20卷 54-66页

作者： Jennie Z.li Nagendran Ramalingam Shaomin li Ann Romney Center for Neurologic Diseases Brigham and Women’s Hospital and Harvard Medical SchoolBostonMAUSA

Alzheimer’s disease is a prominent chronic neurodegenerative condition characterized by a gradual decline in memory leading to *** evidence suggests that Alzheimer’s disease is associated with accumulating various amyloid-βoligomers in the brain,influenced by complex genetic and environmental *** memory and cognitive deficits observed during the prodromal and mild cognitive impairment phases of Alzheimer’s disease are believed to primarily result from synaptic *** life,environmental factors can lead to enduring changes in gene expression and the emergence of brain *** changes,known as epigenetic modifications,also play a crucial role in regulating the formation of synapses and their adaptability in response to neuronal *** this context,we highlight recent advances in understanding the roles played by key components of the epigenetic machinery,specifically DNA methylation,histone modification,and microRNAs,in the development of Alzheimer’s disease,synaptic function,and activity-dependent synaptic ***,we explore various strategies,including enriched environments,exposure to non-invasive brain stimulation,and the use of pharmacological agents,aimed at improving synaptic function and enhancing long-term potentiation,a process integral to epigenetic ***,we deliberate on the development of effective epigenetic agents and safe therapeutic approaches for managing Alzheimer’s *** suggest that addressing Alzheimer’s disease may require distinct tailored epigenetic drugs targeting different disease stages or pathways rather than relying on a single drug.

关键词： Alzheimer’s disease DNA methylation enriched environments histone modification microRNAs non-invasive brain stimulation synaptic plasticity

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

西洋参、人参中有机氯农药残留量的快速检测

引用

中国药业 2008年第6期17卷 29-30页

作者：李爱莲邹美南郭彬李玉兰广东省深圳市合丹医药连锁有限公司广东深圳518004 广东省深圳市中医院广东深圳518033 广东省深圳市药品检验所广东深圳518029

目的建立西洋参、人参中有机氯农药残留量的快速检测方法。方法用石油醚连续提取样品,采用DM-1701毛细管柱进行气相色谱测定,以外标法计算含量。结果农药六六六(BHC)、滴滴涕(DDT)、五氯硝基苯(PCNB)9个异构体均能有效分离,9个异构体在1... 详细信息

目的建立西洋参、人参中有机氯农药残留量的快速检测方法。方法用石油醚连续提取样品,采用DM-1701毛细管柱进行气相色谱测定,以外标法计算含量。结果农药六六六(BHC)、滴滴涕(DDT)、五氯硝基苯(PCNB)9个异构体均能有效分离,9个异构体在1～200μg/L质量浓度范围内与峰面积线性关系良好,r在0.9908～1.0000之间,农药残留量与药典法检测结果相符。结论该法能快速、准确、有效地测定西洋参、人参的有机氯农药残留量。

关键词：西洋参人参有机氯农药残留量气相色谱法

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

大鼠心肺复苏后脑Occludin蛋白表达与血脑屏障及脑水肿的关系

引用

中国医药 2016年第11期11卷 1707-1712页

作者：张慧利罗序睿李爱莲南昌大学第一附属医院急诊科 330006

目的探讨大鼠心搏骤停心肺复苏后脑Occludin蛋白表达的变化及其与血脑屏障和脑水肿的关系。方法选取200只雄性SD大鼠，采用随机数字表法分为A组（对照组，100只，仅行麻醉、动静脉置管及气管插管）及B组（心肺复苏组，100只，制作心搏... 详细信息

目的探讨大鼠心搏骤停心肺复苏后脑Occludin蛋白表达的变化及其与血脑屏障和脑水肿的关系。方法选取200只雄性SD大鼠，采用随机数字表法分为A组（对照组，100只，仅行麻醉、动静脉置管及气管插管）及B组（心肺复苏组，100只，制作心搏骤停与心肺复苏模型）；A组再分为A1、A2组，B组再分为B1、B2组，各50只。A1组于术后稳定10min后、B1组于自主循环恢复（ROSC）后2、6、12、24、48h各处死10只大鼠取脑组织，用免疫组化方法检测脑组织中Occludin蛋白表达，用干湿重法测脑组织含水量。A2组于术后稳定10min后、B2组于ROSC后即刻及4、10、22、46h各取10只大鼠于经尾静脉注射伊文思兰来示踪血脑屏障，注射后2h处死大鼠取脑组织，测定脑组织中伊文氏蓝含量。结果B，组ROSC后2、6、12、24、48h，脑Occludin蛋白阳性细胞数、脑组织含水量各时点之间差异均有统计学意义[Occludin蛋白阳性细胞数：（68．2±1．0）、（42．1±1．6）、（18.1±1．1）、（37．8±0．7）、（61．2±1．0）个／高位视野，脑组织含水量：（77．4±0．7）％、（79．2±0．8）％、（80．2±0．7）％、（79．6±0．5）％、（77．2±1．2）％]（P〈0．01），各时点与A．组[Occludin蛋白阳性细胞数：（86．8±1．3）、（85．1±2．7）、（84．9±2．8）、（82．1±3．1）、（83．8±2．5）个／高位视野，脑组织含水量：（76．0±0．9）％、（75．9±0．9）％、（76．2±1．0）％、（75．9±0．9）％、（75．8±0．9）％]比较差异均有统计学意义（P〈0．05或P〈0．01）；B，组脑组织伊文氏蓝含量各时点之间差异均有统计学意义[（0．50±0．04）、（0．70±0．02）、（0．90±0．04）、（0．87±0．03）、（0．69±0．03）μg／g]（P〈0．01），各时点与A2组[（0．24±0．01）、（0．23±0．01）、（0．23±0．01）、（0．25±0．01）、（0．23±0．04）μg/g]比较差异均有统计学意义（P〈0．01）。脑Occludin蛋白阳性细胞数与脑组织伊文氏蓝含量、脑组织含水量呈负相关（r=-0．862、-0．668，P〈0．01），脑组织伊文氏蓝含量与含水量呈正相关（r=0．672，P〈0．01）。结论大鼠心肺复苏后脑Occludin蛋白表达下降，血脑屏障通透性增加，脑水肿形成，ROSC后12h最明显；脑Occludin蛋白表达与血脑屏障通透性及脑水肿程度呈负相关。

关键词：心肺复苏 Occludin蛋白血脑屏障脑水肿

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

Multilevel analysis of the central-peripheral-target organ pathway:contributing to recovery after peripheral nerve injury

引用

Neural Regeneration Research 2025年第10期20卷 2807-2822页

作者： Xizi Song Ruixin li Xiaolei Chu Qi li Ruihua li Qingwen li Kai-Yu Tong Xiaosong Gu Dong Ming Academy of Medical Engineering and Translational Medicine Tianjin UniversityTianjinChina Haihe Laboratory of Brain-Machine Interface and Human-Machine Fusion TianjinChina Department of Rehabilitation Tianjin University Tianjin HospitalTianjinChina Department of Hand Microsurgery Tianjin University Tianjin HospitalTianjinChina School of Exercise and Health Tianjin University of SportTianjinChina Department of Biomedical Engineering the Chinese University of Hong KongHong Kong Special Administrative RegionChina

Peripheral nerve injury is a common neurological condition that often leads to severe functional limitations and *** on the pathogenesis of peripheral nerve injury has focused on pathological changes at individual injury sites,neglecting multilevel pathological analysis of the overall nervous system and target *** has led to restrictions on current therapeutic *** this paper,we first summarize the potential mechanisms of peripheral nerve injury from a holistic perspective,covering the central nervous system,peripheral nervous system,and target *** peripheral nerve injury,the cortical plasticity of the brain is altered due to damage to and regeneration of peripheral nerves;changes such as neuronal apoptosis and axonal demyelination occur in the spinal *** nerve will undergo axonal regeneration,activation of Schwann cells,inflammatory response,and vascular system regeneration at the injury *** damage to target organs can occur,including skeletal muscle atrophy and sensory receptor *** then provide a brief review of the research advances in therapeutic approaches to peripheral nerve *** main current treatments are conducted passively and include physical factor rehabilitation,pharmacological treatments,cell-based therapies,and physical ***,most treatments only partially address the problem and cannot complete the systematic recovery of the entire central nervous system-peripheral nervous system-target organ ***,we should further explore multilevel treatment options that produce effective,long-lasting results,perhaps requiring a combination of passive(traditional)and active(novel)treatment methods to stimulate rehabilitation at the central-peripheral-target organ levels to achieve better functional recovery.

关键词： central nervous system central peripheral target organ multilevel pathological analysis nerve regeneration peripheral nerve injury peripheral nervous system target organs therapeutic approach

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

Control of Corner Separation for a linear Compressor Cascade via Bionic Slanting Riblets at the Endwall

引用

Journal of Thermal Science 2025年第1期34卷 129-144页

作者： ZHANG Peng li Yonghong CHENG Rixin Key Laboratory of Civil Aircraft Airworthiness Technology Civil Aviation University of China College of Aeronautical Engineering Civil Aviation University of China

A new passive control approach,utilizing bionic slanting riblets,is employed to mitigate the flow close to the blade endwall in a linear cascade,and its effectiveness and mechanism in controlling corner separation are investigated through numerical *** slanting riblets are positioned at the endwall upstream of the cascade channel,and the influence of riblet height,yaw angle and relative position on the control of corner separation is *** findings indicate that the application of slanting riblets can efficiently counteract corner separation across the stable operational ***,the introduction of riblets with a height of merely 0.1 times the boundary layer thickness results in a significant reduction in total pressure loss by up to 14.53%,while simultaneously enhancing the static pressure coefficient by 21.74%.Flow analysis reveals that minute vortices produced within the riblet channels tend to coalesce,forming a potent large-scale vortex near the boundary layer's base *** phenomenon results in reduced additional losses compared to conventional vortex ***,the induced vortex promotes enhanced mixing between the mainstream flow and boundary layer,inhibiting the lateral displacement of low-energy fluids within the endwall boundary ***,this delays the onset of separation vortex formation and eliminates vortex rings in the corner region,ultimately enhancing the aerodynamic efficiency of the cascade.

关键词： additional losses compressor cascade corner separation slanting riblets vortex generator

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

JCI标准下PDCA-RCA在儿科急诊护理文书质控中的运用

引用

哈尔滨医药 2017年第2期37卷 169-170页

作者：杨艳唐慧罗立红李爱连中南大学湘雅医院儿科急诊湖南长沙410008

目的探讨以JCI为标准,运用PDCA循环结合RCA分析法对儿科急诊护理文书进行质控的效果评价。方法以JCI为标准,每月针对一项护理文书缺陷进行质控和PDCA循环,采用重点和逐项突破的形式对检查的问题运用RCA方法进行分析并制定对策。结果实... 详细信息

目的探讨以JCI为标准,运用PDCA循环结合RCA分析法对儿科急诊护理文书进行质控的效果评价。方法以JCI为标准,每月针对一项护理文书缺陷进行质控和PDCA循环,采用重点和逐项突破的形式对检查的问题运用RCA方法进行分析并制定对策。结果实践后护理文书缺陷率较实践前明显降低,差异有统计学意义(P<0.05)。结论以JCI为标准运用PDCA循环结合RCA分析法可以有效的降低儿科急诊护理文书的缺陷率,提升了护理文书质量,提高了护理文书的连续性,进一步保障患者安全。

关键词：护理文书 JCI PDCA RCA 环节质量控制

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：