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控制性低中心静脉压在腹腔镜肝叶切除术中的应用

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中国普通外科杂志 2018年第1期27卷 42-48页

作者：朱荣涛郭文治李捷王勇马秀现张水军郑州大学第一附属医院肝胆胰外科河南郑州450052 郑州大学第一附属医院麻醉科河南郑州450052

目的:探讨控制性低中心静脉压(CLCVP)在腹腔镜肝叶切除术中应用的可行性及临床效果。方法:回顾性分析郑州大学第一附属医院2013年9月—2017年7月施行的腹腔镜肝切除术97例患者的临床资料,其中术中应用CLCVP者53例(CLCVP组),未应用CLCVP... 详细信息

目的:探讨控制性低中心静脉压(CLCVP)在腹腔镜肝叶切除术中应用的可行性及临床效果。方法:回顾性分析郑州大学第一附属医院2013年9月—2017年7月施行的腹腔镜肝切除术97例患者的临床资料,其中术中应用CLCVP者53例(CLCVP组),未应用CLCVP者44例(对照组),两组患者按照肝切除范围又分为腹腔镜简单肝叶切除术(左外叶切除、边缘部分不规则肝叶)与腹腔镜复杂肝脏切除术(左半肝切除、右半肝切除、肝中叶切除)亚组,比较两组患者总体与亚组间的相关临床指标。结果:全部患者均顺利完成手术,无围手术期死亡;无论总体还是亚组间比较,CLCVP组与对照组患者术中尿量、术后肝肾功能指标均无统计学差异(均P>0.05);总体比较,CLCVP组与对照组切肝时间和术后住院时间亦均无统计学差异(均P>0.05);CLCVP组术中出血量、输血例数、输血量均较对照组明显减少(P0.05),但CLCVP组中腹腔镜复杂肝脏切除术患者的术中出血量、输血例数、输血量均明显少于对照组中腹腔镜复杂肝脏切除术患者(均P0.05);全部患者术中及术后均未出现有临床症状的肺栓塞。结论:对于腹腔镜复杂性肝脏切除术患者,术中行CLCVP能有效减少出血量、输血量,且并无增加肺栓塞的危险。

关键词：肝切除术腹腔镜中心静脉压降压控制性

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实体非肾器官移植后肾损伤的诊疗进展与思考

中华器官移植杂志 2023年第5期44卷 257-260页

作者：郭文治杜潇潇张水军郑州大学第一附属医院肝胆胰外科、河南省肝移植中心、河南省器官移植工程技术研究中心、河南省高等学校肝胆胰外科与消化器官移植重点学科开放实验室郑州450052

该文就非肾实体器官移植术后肾损伤的相关危险因素、预防和管理策略进行简要述评, 以期优化移植团队对非肾实体器官移植术后肾损伤的管理, 进一步改善受者的生存质量和生存期。

关键词：器官移植肾损伤慢性肾脏病

AZD8055对耐照射胰腺癌细胞逆转作用的研究

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中国实用医刊 2016年第17期43卷 63-65页

作者：王艳瑛任红亮张水军河南省驻马店市中心医院普通外科二病区 463000 郑州大学第一附属医院普通外科

目的：将 AZD8055作用于耐照射胰腺癌细胞，研究其对耐照射胰腺癌细胞的逆转作用。方法通过梯度照射方法培养耐照射 Panc-1胰腺癌细胞株，检测其亲本细胞株及耐照射细胞株的哺乳动物雷帕霉素靶蛋白（mTOR 蛋白）和 S6K1蛋白的表达情况... 详细信息

目的：将 AZD8055作用于耐照射胰腺癌细胞，研究其对耐照射胰腺癌细胞的逆转作用。方法通过梯度照射方法培养耐照射 Panc-1胰腺癌细胞株，检测其亲本细胞株及耐照射细胞株的哺乳动物雷帕霉素靶蛋白（mTOR 蛋白）和 S6K1蛋白的表达情况。经过 AZD8055作用，再次行 X 线照射检测其被杀伤情况。结果成功建立耐照射胰腺癌细胞株，其 mTOR 蛋白和 S6K1蛋白表达均较亲本细胞株增强，经过 AZD8055处理的细胞株，其mTOR 蛋白和 S6K1蛋白表达降低，表现出对 X 线照射敏感性恢复。细胞凋亡增加，其细胞凋亡率与 mTOR 蛋白和S6K1蛋白表达呈现负相关，与 AZD8055作用时间呈正相关，而 mTOR 蛋白和 S6K1蛋白表达呈正相关。结论 AZD8055处理可逆转耐照射胰腺癌细胞的耐照射性，与 AZD8055抑制 mTOR 蛋白表达相关联，考虑作为mTOR 下游基因，S6K1与其协同参与胰腺癌照射抵抗的发生。

关键词：耐照射胰腺癌 AZD8055 逆转

灯盏花素对脑死亡巴马小型猪心脏结构、功能及蛋白激酶C表达的影响

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西安交通大学学报（医学版） 2007年第1期28卷 57-60页

作者：朱长举陆旭朱盛兴赵永福马秀现张水军郑州大学第一附属医院急诊科河南郑州450052 郑州大学第一附属医院外科河南郑州450052

目的探讨灯盏花素对脑死亡巴马小型猪心脏结构、功能及蛋白激酶C(protein kinase C,PKC)表达的影响。方法巴马小型猪15只,随机分为脑死亡组、灯盏花素组及对照组。应用缓慢间断颅内加压法建立脑死亡模型。分别于脑死亡后6、12和24 h取... 详细信息

目的探讨灯盏花素对脑死亡巴马小型猪心脏结构、功能及蛋白激酶C(protein kinase C,PKC)表达的影响。方法巴马小型猪15只,随机分为脑死亡组、灯盏花素组及对照组。应用缓慢间断颅内加压法建立脑死亡模型。分别于脑死亡后6、12和24 h取血清及心肌组织进行研究。结果①脑死亡24 h灯盏花素组心肌损伤明显轻于脑死亡组;②脑死亡后各时间点灯盏花素组血清肌钙蛋白T(cTnT)、白介素-1β(IL-1β)、白介素-6(IL-6)、肿瘤坏死因子-α(TNF-α)水平均较脑死亡组低;③脑死亡24 h灯盏花素组心肌蛋白激酶C表达水平均显著低于脑死亡组。结论灯盏花素可通过抑制蛋白激酶C,减少炎症因子释放,减轻脑死亡巴马小型猪的心脏损伤。

关键词：灯盏花素巴马小型猪脑死亡心脏蛋白激酶C

ImSpiRE: image feature-aided spatial resolution enhancement method

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Science China Life Sciences 2025年第1期68卷 272-283页

作者： Yuwei Hua Yizhi zhang Zhenming Guo Shan Bian Yong zhang State Key Laboratory of Cardiovascular Diseases and Medical Innovation Center Institute for Regenerative MedicineDepartment of NeurosurgeryShanghai East HospitalShanghai Key Laboratory of Signaling and Disease ResearchFrontier Science Center for Stem Cell ResearchSchool of Life Sciences and TechnologyTongji University

The resolution of most spatially resolved transcriptomic technologies usually cannot attain the single-cell level, limiting their applications in biological discoveries. Here, we introduce ImSpiRE, an image feature-aided spatial resolution enhancement method for in situ capturing spatial transcriptome. Taking the information stored in histological images, ImSpiRE solves an optimal transport problem to redistribute the expression profiles of spots to construct new transcriptional profiles with enhanced resolution, together with extending the gene expression profiles into unmeasured regions. Applications to multiple datasets confirm that ImSpiRE can enhance spatial resolution to the subspot level while contributing to the discovery of tissue domains, signaling communication patterns, and spatiotemporal characterization.

关键词： spatial transcriptome histological images spatial resolution enhancement

Aerodynamic Optimization and Flow Mechanism for a Compressor Cascade at Low Reynolds Number

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Journal of Thermal Science 2025年第1期34卷 92-109页

作者： LI Lin zhang Jianshe CHEN Caiyan TAN Wei zhang Yanfeng Key Laboratory of Light-Duty Gas-Turbine Institute of Engineering ThermophysicsChinese Academy of Sciences University of Chinese Academy of Sciences National Key Laboratory of Science and Technology on Advanced Light-duty Gas-turbine

Low-Reynolds-number effect is an important factor affecting the performance of compressors and other main components of high-altitude long-endurance unmanned aerial *** improve the flow condition and reduce flow loss under the condition of high altitude and low Reynolds number(Re),this paper proposes an optimization process based on a surrogate model,which combines the class-shape transformation method(CST),the Latin hypercube sampling(LHS) method,the light gradient-boosting machine algorithm(LightGBM),and a genetic algorithm(GA) to optimize a high-subsonic compressor *** surrogate model is verified to be accurate and can be used in the optimization *** accuracy of the GA is higher than the other algorithms under common test *** optimization results are verified by numerical simulation,and the flow differences before and after optimization are compared,especially the flow within the boundary *** changing the blade shape,the optimization process adjusts the loading distribution to delay the transition of the optimized blade on the suction surface,which changes the turbulent reattachment in the laminar separation bubble(LSB) into laminar ***,the mixing loss induced by the turbulent reattachment of the LSB and the wake loss of turbulent separation at the trailing edge are significantly reduced,and the performance of the compressor profile is finally *** addition,turbulent separation of the optimized profile is delayed reducing the range of the wake region on the suction *** this optimization process,the reduction of total pressure loss coefficient at Re of 2.5×10～5,3.5×10～5,and 4.5×10～5 are 16.32%,20.76%,and 22.16%,respectively.

关键词： Reynolds number

Numerical Study of Flow and Heat Transfer Characteristics of Shell-and-Tube Molten Salt Electric Heater with Circularly Perforated Baffles

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Journal of Thermal Science 2025年第1期34卷 24-33页

作者： LIN Yongjie zhang Cancan WU Yuting zhang Yi LU Yuanwei Key Laboratory of Heat Transfer and Energy Conversion National User-Side Energy Storage Innovation Research and Development CenterBeijing University of Technology

Numerical simulations of the flow and heat transfer characteristics of four shell-and-tube molten salt electric heaters with different perforation rates was ***-and-tube electric heaters have the same geometry and tube arrangement,and all of them use single segmental baffles,but there exist four different baffle openings（φ）,i.e.,0%,2.52%,4.06%,and 6.31%.The results indicated that the reasonable baffle opening could significantly reduce the shell-side pressure drop,effectively decreasing the shell-side flow dead zone *** can eliminate the local high-temperature phenomenon on the surface of electric heating tubes,but the heat transfer coefficient is slightly *** perforated schemes significantly reduce shell-side pressure drop compared to the baseline solution without open *** particular,the φ=6.31% scheme exhibits the optimal performance among all the schemes,with a maximum reduction of up to 50.50% in shell-side pressure drop relative to the unopened holes *** heat transfer coefficient is the highest for φ=0%,exhibiting a range of5.26% to 5.73%,5.14% to 5.99%,and 7.31% to 8.54% higher than φ=2.52%,4.06%,and 6.31%,respectively,within the calculated *** composite index h/（Δp）1/3was higher for all open-hole solutions than that for the unopened-hole *** best overall performance was for φ=6.31%,which improved the composite index by15.29% to 17.18% over the unopened-hole solution.

关键词： molten salt electric heater perforated baffles heat transfer

A Lightweight Multiscale Feature Fusion Network for Solar Cell Defect Detection

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Computers, Materials & Continua 2025年第1期82卷 521-542页

作者： Xiaoyun Chen Lanyao zhang Xiaoling Chen Yigang Cen Linna zhang Fugui zhang School of Mechanical Engineering Guizhou UniversityGuiyang550025China School of Computer Science and Technology Beijing Jiaotong UniversityBeijing100044China

Solar cell defect detection is crucial for quality inspection in photovoltaic power generation *** the production process,defect samples occur infrequently and exhibit random shapes and sizes,which makes it challenging to collect defective ***,the complex surface background of polysilicon cell wafers complicates the accurate identification and localization of defective *** paper proposes a novel Lightweight Multiscale Feature Fusion network(LMFF)to address these *** network comprises a feature extraction network,a multi-scale feature fusion module(MFF),and a segmentation ***,a feature extraction network is proposed to obtain multi-scale feature outputs,and a multi-scale feature fusion module(MFF)is used to fuse multi-scale feature information *** order to capture finer-grained multi-scale information from the fusion features,we propose a multi-scale attention module(MSA)in the segmentation network to enhance the network’s ability for small target ***,depthwise separable convolutions are introduced to construct depthwise separable residual blocks(DSR)to reduce the model’s parameter ***,to validate the proposed method’s defect segmentation and localization performance,we constructed three solar cell defect detection datasets:SolarCells,SolarCells-S,and *** and SolarCells-S are monocrystalline silicon datasets,and PVEL-S is a polycrystalline silicon *** results show that the IOU of our method on these three datasets can reach 68.5%,51.0%,and 92.7%,respectively,and the F1-Score can reach 81.3%,67.5%,and 96.2%,respectively,which surpasses other commonly usedmethods and verifies the effectiveness of our LMFF network.

关键词： Defect segmentation multi-scale feature fusion multi-scale attention depthwise separable residual block

Bilevel Optimal Scheduling of Island Integrated Energy System Considering Multifactor Pricing

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Energy Engineering 2025年第1期122卷 349-378页

作者： Xin zhang Mingming Yao Daiwen He Jihong zhang Peihong Yang Xiaoming zhang School of Automation and Electrical Engineering Inner Mongolia University of Science and TechnologyBaotou014010China

In this paper,a bilevel optimization model of an integrated energy operator(IEO)–load aggregator(LA)is constructed to address the coordinate optimization challenge of multiple stakeholder island integrated energy system(IIES).The upper level represents the integrated energy operator,and the lower level is the electricity-heatgas load *** to the benefit conflict between the upper and lower levels of the IIES,a dynamic pricing mechanism for coordinating the interests of the upper and lower levels is proposed,combined with factors such as the carbon emissions of the IIES,as well as the lower load interruption *** price of selling energy can be dynamically adjusted to the lower LA in the mechanism,according to the information on carbon emissions and load interruption *** benefits and win-win situations are achieved between the upper and lower ***,CPLEX is used to iteratively solve the bilevel optimization *** optimal solution is selected according to the joint optimal discrimination *** results indicate that the sourceload coordinate operation can reduce the upper and lower operation *** the proposed pricingmechanism,the carbon emissions and load interruption power of IEO-LA are reduced by 9.78%and 70.19%,respectively,and the capture power of the carbon capture equipment is improved by 36.24%.The validity of the proposed model and method is verified.

关键词： Bilevel optimal scheduling load aggregator integrated energy operator carbon emission dynamic pricing mechanism