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A new scoring system for assessment of liver function after successful hepatectomy in patients with hepatocellular carcinoma

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Hepatobiliary & Pancreatic Diseases International 2011年第3期10卷 265-269页

作者： Zheng-Gui Du,Bo Li,Yong-Gang Wei,Jie yin,xi feng and xi Chen Department of Liver and Vascular Surgery,West China Hospital,Sichuan University,Chengdu 610041,China Department of Liver and Vascular Surgery West China Hospital Sichuan University Chengdu 610041 China

BACKGROUND:Whether a major liver resection is safe has been judged mainly from the patient’s hepatic ***,a safe limit for liver resection does not exist *** study aimed to construct a new scoring system as a guide to determine a safe limit for liver resection and avoid liver dysfunction after ***:Eighty-six patients with hepatocellular carcinoma who had undergone hepatectomy in West China Hospital from March 2007 to June 2010 were *** patients were classified according to the levels of total bilirubin after hepatectomy and the parameters in the perioperative period were *** operating characteristic (ROC) analysis was made to assess the liver function compensatory (LFC) value to predict liver dysfunction of the patients after *** value is defined as the preoperative KICG value×22.487+standard remnant liver volume (SRLV)×***:Patients were classified into group Ⅰ (normal group,n=69) and group Ⅱ (with total bilirubin >85.5 μmol/L for 7 days after hepatectomy,n=17) based on the levels of total bilirubin after *** II was further divided into two subgroups:recovered subgroup (n=14) and fatal subgroup (n=3).There were no significant differences in preoperative data or intraoperative findings except the indocyanine green test parameters (KICG and ICG R15) and *** analysis showed that the sensitivity and specificity of an LFC value ≤13.01 were 94.1% and 82.6% respectively for predicting liver dysfunction of the patients after ***:The LFC value appears to be a good predictor of postoperative liver dysfunction in patients who undergo hepatectomy for *** expected LFC value of 13.01 seems to be a safe limit for liver resection.

关键词： indocyanine green test standard remnant liver volume hepatectomy liver dysfunction liver function reserve

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下保护层开采卸压效应研究

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煤炭技术 2021年第8期40卷 55-59页

作者：尹锡峰严磊中国爆破行业协会北京100071 苏交安江苏安全技术咨询有限公司南京210000

为了研究高变质煤保护层开采对被保护层的卸压效应,针对煤层煤与瓦斯突出问题,基于保护层开采理论和数值模拟方法,采用FLAC3D数值模拟软件,研究了高变质保护层开采过程中被保护层的应力和应变情况,得出下保护层开采后高变质煤被保护层... 详细信息

为了研究高变质煤保护层开采对被保护层的卸压效应,针对煤层煤与瓦斯突出问题,基于保护层开采理论和数值模拟方法,采用FLAC3D数值模拟软件,研究了高变质保护层开采过程中被保护层的应力和应变情况,得出下保护层开采后高变质煤被保护层应力分布呈现出了“W”形的分布特性,垂直方向煤厚变形量分布呈现出了“M”形的分布规律。之后经过现场实测,被保护层残余瓦斯含量和残余瓦斯压力最大值分别降低到临界值8 m^(3)/t和0.74 MPa以下。结果表明:经过下保护层开采,被保护层得到充分卸压,能有效消除其突出危险性,实现了区域防突的目的。研究结果可为矿井实现安全、高效开采,预防煤与瓦斯突出提供一定的参考和借鉴依据。

关键词：下保护层卸压效应瓦斯防治

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弹用红外干扰发烟剂研制

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含能材料 2005年第6期13卷 408-411页

作者：尹喜凤吴昱武湃金青君中国人民解放军防化研究院北京102205

对铜基红外干扰发烟剂的配方及影响配方性能的主要因素进行了实验研究,并对其性能进行了测试。结果表明,该发烟剂不仅对中、远红外光具有优良的干扰能力,而且对可见光、激光也具有良好的遮蔽能力。该发烟剂还具有装填密度大,不导电,耐... 详细信息

对铜基红外干扰发烟剂的配方及影响配方性能的主要因素进行了实验研究,并对其性能进行了测试。结果表明,该发烟剂不仅对中、远红外光具有优良的干扰能力,而且对可见光、激光也具有良好的遮蔽能力。该发烟剂还具有装填密度大,不导电,耐高、低温性能、相容性和稳定性能良好等特点。

关键词：应用化学烟火剂发烟剂铜粉红外干扰

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Effect of order–disorder transition on thermodynamic and electronic properties of σ and χ phases in W–Re alloy: the first-principles calculation

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Tungsten 2025年第1期7卷 195-213页

作者： Zhi-Peng Zhu Dian Jia William Yi Wang Jun-Lei yin xing-Yu Gao Shu-feng Yang Hai-feng Song Jin-Shan Li State Key Laboratory of Solidification Processing Northwestern Polytechnical University Laboratory of Computational Physics Institute of Applied Physics and Computational Mathematics School of Metallurgical and Ecological Engineering University of Science and Technology Beijing

The Tungsten-Rhenium(W-Re) alloys,celebrated for their high melting point,strength at elevated temperatures,electrical resistivity,and radiation resistance,have been widely utilized in high-temperature components,aerospace,electronics,and nuclear *** constituents of the topologically close-packed(TCP) phases,the sigma phase(σ) and chi phase(χ) formed within W-Re alloys wield considerable influence on the mechanical properties and the stability of the *** calculations were utilized in the present work to explore the structural,thermodynamic,and electronic properties of both ordered and disordered configurations within the σ and χ phases,culminating in a systematic elucidation of the higher phase stability exhibited by the ordered *** is found that the bulk modulus of these two phases is directly proportional to the concentration of Re in the alloy,while the equilibrium volume is inversely *** thermodynamic parameters of the σ and χ phases are calculated via the mean-field potential *** similar trends observed in the isobaric heat capacity,enthalpy increment,and entropy change curves for these two phases suggest they possess comparable thermodynamic *** is noteworthy that the contribution of ionic vibrations predominantly affects the isobaric heat capacity,while the contribution of thermal electronic excitations increases linearly with *** the structure and thermodynamic properties of TCP phases in W-Re alloys at low temperatures has profound significance for optimizing material performance,microstructures features,establishing theoretical foundations,and predicting material behavior.

关键词： First-principles calculations Phase stability TCP phases Thermodynamic properties W–Re alloy

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Visual detection of Vibrio parahaemolyticus using gold nanoparticles and isothermal amplification

Visual detection of Vibrio parahaemolyticus using gold nanop...

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中国化学会第十三届全国分析化学年会

作者： Cong Kong Yuan Wang Guang-xin Yang feng Han Dong-mei Huang yin-feng xi Run-run Gu Zhi-dong Liu xiao-sheng Shen Key Laboratory of East China Sea Fishery Resources Exploitation Ministry of Agriculture East China Sea Fisheries Research Institute Chinese Academy of Fishery Sciences

Loop-mediated isothermal amplification（LAMP） eradicates the need of thermocycler in numerous fields related to molecular amplification detection and gives result through fluorescence or turbidity after the reaction, which is common used but still need to be improved for easier, simpler and more definitive readout. On the other side, Vibrio parahaemolyticus（V. parahaemolyticus） is one of the most prevalent seafood-borne pathogen worldwide, causing acute gastroenteritis. Here, a set of six specific primers targeting the species-specific tlh gene were used to realize the accelerated LAMP reaction. Gold nanoparticles（AuNPs） was functionalized with streptavidin（Avidin-AuNPs）, and engineered to signal the LAMP reaction. As two of the loop primers for LAMP reaction were biotinylated, the produced DNA product was able to mediate the clusterization of Avidin-AuNPs based on the avidin-biotin complex formation, which leads to the apparent color change from red to blue in the reaction solution. The rapid amplification could be performed within 30 min and readily identified by naked eye. The sensitivity, specificity and practicability of the nanosensing LAMP method were investigated and validated. This approach requires no fluorescent reagent and detection instrument. The Avidin-AuNPs can be used as simplified and generalized nanoprobes that are feasible for any similar LAMP product sensing. This simple, rapid, universal amplification and nanosensing strategy promised the high suitability of the developed method for point of care detection or utilization in resource-limited regions.

关键词： Loop-mediated isothermal amplification Gold Nanoparticles Nanosense Vibrio parahaemolyticus

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影响可膨胀石墨爆炸膨化的因素探讨

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火工品 2006年第5期 5-7,20页

作者：吴昱尹喜凤崔建林武湃防化研究院北京102205

为研究影响可膨胀石墨爆炸膨化的影响因素,通过测定膨化率以及发烟剂对8mm波衰减值,分析了弹壳材料与壁厚、炸药及可燃剂含量、装药密度、混药工艺、插层物质以及分散方式对膨化效果及对8mm波衰减效果的影响,根据测试结果,优化发烟弹与... 详细信息

为研究影响可膨胀石墨爆炸膨化的影响因素,通过测定膨化率以及发烟剂对8mm波衰减值,分析了弹壳材料与壁厚、炸药及可燃剂含量、装药密度、混药工艺、插层物质以及分散方式对膨化效果及对8mm波衰减效果的影响,根据测试结果,优化发烟弹与可膨胀石墨的设计参数。

关键词：可膨胀石墨膨化率爆炸干扰

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五轮山煤巷钻屑瓦斯解吸指标敏感性研究

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煤炭技术 2018年第6期37卷 212-214页

作者：严磊尹锡峰安徽理工大学能源与安全学院安徽淮南232001

采用钻屑瓦斯解吸指标法对贵州省五轮山煤矿1807切眼煤与瓦斯突出预测指标敏感性进行研究。将现场统计的数据和实验室模拟的结果进行对比分析,分别得出K_1值、Δh_2值与吸附平衡压力之间的幂指数关系,进而得到指标的参考临界值。采用现... 详细信息

采用钻屑瓦斯解吸指标法对贵州省五轮山煤矿1807切眼煤与瓦斯突出预测指标敏感性进行研究。将现场统计的数据和实验室模拟的结果进行对比分析,分别得出K_1值、Δh_2值与吸附平衡压力之间的幂指数关系,进而得到指标的参考临界值。采用现场实测方式来分析指标的相关性,并利用临界值迫近度法对2个指标的敏感性进行统计分析,选择适合五轮山煤矿的主要预测指标。

关键词：预测指标敏感性钻屑瓦斯解吸临界值迫近度

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有限预知信息的集装箱搬卸占线问题

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系统工程理论方法应用 2004年第5期13卷 390-394页

作者：郑斐峰徐寅峰西安交通大学管理学院西安710049 西安交通大学机械制造系统工程国家重点实验室西安710049

提出了有限预知信息的集装箱搬卸占线问题,即每一个服务请求到达时预先知道后续一部分请求信息的占线问题。建立并分析相应的数学模型,针对模型中预知信息的特征提出了贪婪移位策略。运用最坏情形分析方法研究了贪婪移位策略的竞争性能... 详细信息

提出了有限预知信息的集装箱搬卸占线问题,即每一个服务请求到达时预先知道后续一部分请求信息的占线问题。建立并分析相应的数学模型,针对模型中预知信息的特征提出了贪婪移位策略。运用最坏情形分析方法研究了贪婪移位策略的竞争性能,证明其具有竞争比:(b+w-2)/w。

关键词：占线问题贪婪移位策略竞争比

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Flexible Strain Sensors with Ultra‑High Sensitivity and Wide Range Enabled by Crack‑Modulated Electrical Pathways

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Nano-Micro Letters 2025年第3期17卷 246-264页

作者： Yunzhao Bai Yunlei Zhou Xuanyu Wu Mengfei yin Liting yin Shiyuan Qu Fan Zhang Kan Li YongAn Huang State Key Laboratory of Intelligent Manufacturing Equipment and Technology Huazhong University of Science and TechnologyWuhan 430074People’s Republic of China Flexible Electronics Research Center Huazhong University of Science and TechnologyWuhan 430074People’s Republic of China Hangzhou Institute of Technology Xidian UniversityHangzhou 311200People’s Republic of China School of Mechano‑Electronic Engineering Xidian UniversityXi’an 710071People’s Republic of China Department of Aerospace and Mechanical Engineering University of Southern CaliforniaLos AngelesCA 90089USA

This study presents a breakthrough in flexible strain sensor technology with the development of an ultrahigh sensitivity and wide-range sensor,addressing the critical challenge of reconciling sensitivity with measurement *** by the structure of bamboo slips,we introduce a novel approach that utilises liquid metal to modulate the electrical pathways within a cracked platinum fabric *** resulting sensor demonstrates a gauge factor greater than 108 and a strain measurement capability exceeding 100%.The integration of patterned liquid metal enables customisable tuning of the sensor’s response,while the porous fabric structure ensures superior comfort and air permeability for the *** design not only optimises the sensor’s performance but also enhances the electrical stability that is essential for practical *** systematic investigation,we reveal the intrinsic mechanisms governing the sensor’s response,offering valuable insights for the design of wearable strain *** sensor’s exceptional performance across a spectrum of applications,from micro-strain to large-strain detection,highlights its potential for a wide range of real-world uses,demonstrating a significant advancement in the field of flexible electronics.

关键词： Flexible strain sensor Fabric Crack Response regulation Epidermal device

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Unleashing the Potential of Electroactive Hybrid Biomaterials and Self‑Powered Systems for Bone Therapeutics

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Nano-Micro Letters 2025年第2期17卷 463-497页

作者： Shichang Liu Farid Manshaii Jinmiao Chen xinfei Wang Shaolei Wang Junyi yin Ming Yang Xuxu Chen xinhua yin Yunlei Zhou Honghui Hospital Xi’an Jiaotong UniversityXi’an 710018People’s Republic of China Department of Bioengineering Henry Samueli School of Engineering and Applied ScienceUniversity of California Los AngelesLos Angeles 90095USA Hangzhou Institute of Technology Xidian UniversityHangzhou 311231People’s Republic of China

The incidence of large bone defects caused by traumatic injury is increasing worldwide,and the tissue regeneration process requires a long recovery time due to limited self-healing *** bioelectrical phenomena have been well recognized as critical biophysical factors in bone remodeling and *** by bioelectricity,electrical stimulation has been widely considered an external intervention to induce the osteogenic lineage of cells and enhance the synthesis of the extracellular matrix,thereby accelerating bone *** ongoing advances in biomaterials and energy-harvesting techniques,electroactive biomaterials and self-powered systems have been considered biomimetic approaches to ensure functional recovery by recapitulating the natural electrophysiological microenvironment of healthy bone *** this review,we first introduce the role of bioelectricity and the endogenous electric field in bone tissue and summarize different techniques to electrically stimulate cells and ***,we highlight the latest progress in exploring electroactive hybrid biomaterials as well as self-powered systems such as triboelectric and piezoelectric-based nanogenerators and photovoltaic cell-based devices and their implementation in bone tissue ***,we emphasize the significance of simulating the target tissue’s electrophysiological microenvironment and propose the opportunities and challenges faced by electroactive hybrid biomaterials and self-powered bioelectronics for bone repair strategies.

关键词： Electroactive biomaterials Self-powered bioelectronics Bone regeneration Bone tissue

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