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Journal of Thermal Science 2024年第4期33卷 1491-1508页

作者： LV Jiayang WANG Chizhong CHEN Heng PAN Peiyuan XU Gang zhang guoqiang School of Energy Power and Mechanical EngineeringNorth China Electric Power UniversityBeijing102206China

In order to reduce the environmental impact of conventional sludge treatment methods and to utilize the energy in sludge more effectively,a coupled system based on sewage sludge gasifier(SSG),solid oxide fuel cells(SOFC),supercritical CO_(2)cycle(S-CO_(2)),and organic Rankine cycle(ORC)is *** clean syngas obtained from sludge gasification is mixed with CH4 and then first utilized by the fuel *** exhaust gas from the fuel cell is fully combusted in the afterburning chamber and then enters the bottom cycle system consisting of S-CO_(2)&ORC to generate *** understand the performance of the system,thermodynamic and economic analyses were conducted to examine the project's *** thermodynamics as well as the economics of the coupled system were analyzed to arrive at the following conclusions,the power production of the system is 37.34 MW;the exergy efficiency is 55.62%,and the net electrical efficiency is 61.48%.The main exergy destruction is the gasifier and SOFC,accounting for 62.45%of the total exergy *** takes only6.13 years to repay the construction investment in the novel system,and the project obtains a NPV of 17723820USD during 20 years *** above findings indicate that the new coupled system has a better performance in terms of energy utilization and economy.

关键词： sewage sludge gasifier SOFC supercritical CO_(2)cycle organic Rankine cycle multi-system coupling

A multi-mineral model for predicting petrophysical properties of complex metamorphic reservoirs:Case study of the Bozhong Depression,Bohai Sea

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Energy Geoscience 2024年第3期5卷 66-76页

作者： guoqiang zhang Zhongjian Tan Guibin zhang Dong Li Chenchen Liu zhang zhang Jun Cao Xin Lei Tianjin Branch of CNOOC Ltd. Tianjin300459China Well Tech of China Oilfield Services Co.Ltd. CNOOCTianjin300459China School of Energy Resources China University of GeosciencesBeijing100083China Beijing Key Laboratory of Unconventional Natural Gas Geological Evaluation and Development Engineering Beijing100083China Research Center of China National Offshore Oil Corporation Beijing100027China State Key Laboratory of Natural Gas Hydrate Beijing100028China

Interpreting reservoir properties through log data and logging responses in complex strata is critical for efficient petroleum exploitation,particularly for metamorphic ***,the unsatisfactory accuracy of such interpretations in complex reservoirs has hindered their widespread application,resulting in severe *** this study,we proposed a multi-mineral model based on the least-square method and an optimal principle to interpret the logging responses and petrophysical properties of complex hydrocarbon *** began by selecting the main minerals based on a comprehensive analysis of log data,X-ray diffraction,petrographic thin sections and scanning electron microscopy(SEM)for three wells in the Bozhong 19-6 structural *** combination of the physical properties of these minerals with logging responses,we constructed the multi-mineral model,which can predict the log curves,petrophysical properties and mineral *** predicted and measured log data are evaluated using a weighted average error,which shows that the multi-mineral model has satisfactory prediction performance with errors below 11%in most ***,we apply the model to a new well“x”in the Bozhong 19-6 structural zone,and the predicted logging responses match well with measured data with the weighted average error below 11.8%for most ***,the lithology is dominated by plagioclase,K-feldspar,and quartz as shown by the mineral profile,which correlates with the lithology of the Archean metamorphic rocks in this *** is concluded that the multi-mineral model presented in this study provides reasonable methods for interpreting log data in complex metamorphic hydrocarbon reservoirs and could assist in efficient development in the future.

关键词： Logging interpretation Metamorphic rock Buried hill reservoir Petrophysical property prediction Bozhong 19-6 structural zone

Spi1 regulates the microglial/macrophage inflammatory response via the PI3K/AKT/mTOR signaling pathway after intracerebral hemorrhage

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Neural Regeneration Research 2024年第1期19卷 161-170页

作者： guoqiang zhang Jianan Lu Jingwei Zheng Shuhao Mei Huaming Li Xiaotao zhang An Ping Shiqi Gao Yuanjian Fang Jun Yu Department of Neurosurgery The Second Affiliated Hospital of Zhejiang University School of MedicineHangzhouZhejiang ProvinceChina Department of Neurosurgery Huashan Hospital of Fudan University School of MedicineShanghaiChina Clinical Research Center for Neurological Diseases of Zhejiang Province HangzhouZhejiang ProvinceChina Key Laboratory of Precise Treatment and Clinical Translational Research of Neurological Diseases HangzhouZhejiang ProvinceChina

Preclinical and clinical studies have shown that microglia and macrophages participate in a multiphasic brain damage repair process following intracerebral *** E26 transformation-specific sequence-related transcription factor Spi1 regulates microglial/macrophage commitment and ***,the effect of Spi1 on intracerebral hemorrhage remains *** this study,we found that Spi1 may regulate recovery from the neuroinflammation and neurofunctional damage caused by intracerebral hemorrhage by modulating the microglial/macrophage *** showed that high Spi1expression in microglia/macrophages after intracerebral hemorrhage is associated with the activation of many pathways that promote phagocytosis,glycolysis,and autophagy,as well as debris clearance and sustained ***,microglia with higher levels of Soil expression were chara cterized by activation of pathways associated with a variety of hemorrhage-related cellular processes,such as complement activation,angiogenesis,and *** conclusion,our results suggest that Spi1 plays a vital role in the microglial/macrophage inflammatory response following intracerebral *** new insight into the regulation of Spi1 and its target genes may advance our understanding of neuroinflammation in intracerebral hemorrhage and provide therapeutic targets for patients with intracerebral hemorrhage.

关键词： intracerebral hemorrhage macrophage microglia neuroinflammation phagocytosis PI3K/AKT/mTOR signaling pathway Spi1 transcriptomics

Review of Field Weakening Control Strategies of Permanent Magnet Synchronous Motors

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CES Transactions on Electrical Machines and Systems 2024年第3期8卷 319-331页

作者： Runze Jing Gaolin Wang guoqiang zhang Dianguo Xu School of Electrical Engineering and Automation Harbin Institute of TechnologyHarbin 150001China

Due to high power density,high efficiency,and accurate control performance,permanent magnet synchronous motors(PMSMs)have been widely adopted in equipment manufacturing and energy transformation *** expand the speed range under finite DC-bus voltage,extensive research on field weakening(FW)control strategies has been *** paper summarizes the major FW control strategies of PMSMs,which are categorized into calculation-based methods,voltage closed-loop control methods,and model predictive control related *** existing strategies are analyzed and compared according to performance,robustness,and execution difficulty,which can facilitate the implementation of FW control.

关键词： Calculation-based methods Field weakening control Model predictive control Permanent magnet synchronous motor Overmodulation Voltage closed-loop control

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Research 2024年第3期6卷 51-69页

作者： Jianan Lu Huaming Li guoqiang zhangi Fan Yangi Xiaotao zhangi An Pingi Zhouhan Xui Yichen Gui Rui Wangi Dan Yingi Jianjian Liui Jianmin zhangi Ligen Shi Department of Neurosurgery Second Affiliated HospitalSchool of MedicineZhejiang UniversityHangzhouZhejiangChina Clinical Research Center for Neurological Diseases of Zhejiang Province HangzhouChina.

Immunosenescence refers to the multifaceted and profound alterations in the immune system brought about by aging,exerting complex influences on the pathophysiological processes of diseases that manifest upon *** a combination of single-cell RNA sequencing,cytometry by time of flight,and various immunological assays,we investigated the characteristics of immunosenescence in the peripheral blood of aged mice and its impact on the cerebral immune environment after ischemic *** results revealed some features of *** observed an increase in neutrophil counts,concurrent with accelerated neutrophil aging,characterized by altered expression of aging-associated markers like CD62L and consequential changes in neutrophil-mediated immune ***/macrophages in aged mice exhibited enhanced antigen-presentation capabilities.T cell profiles shifted from naive to effector or memory states,with a specific rise in T helper 1 cells and T helper 17 cells subpopulations and increased regulatory T cell activation in CD4 T ***,regulatory CD8 T cells marked by Klra decreased with aging,while a subpopulation of exhausted-like CD8 T cells expanded,retaining potent immunostimulatory and proinflammatory ***,these inherent disparities not only persisted but were further amplified within the ischemic hemispheres following *** summary,our comprehensive insights into the key attributes of peripheral immunosenescence provide a vital theoretical foundation for understanding not only ischemic strokes but also other age-associated diseases.

关键词： alterations retaining Impact

The Chinese guideline for management of snakebites

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World Journal of Emergency Medicine 2024年第5期15卷 333-355页

作者： Rongde Lai Shijiao Yan Shijun Wang Shuqing Yang zhangren Yan Pin Lan Yonggao Wang Qi Li Jinlong Wang Wei Wang Yuefeng Ma Zijing Liang Jianfeng zhang Ning Zhou Xiaotong Han Xinchao zhang Mao zhang Xiaodong Zhao guoqiang zhang Huadong Zhu Xuezhong Yu Chuanzhu Lyu Emergency Department the First Affi liated Hospital of Guangzhou Medical UniversityGuangzhou 510120China School of Public Health Hainan Medical UniversityHaikou 571199China Surgery Department of Traditional Chinese Medicine the Affi liated People’s Hospital of Fujian University of Traditional Chinese MedicineFuzhou 350004China Emergency Department Chongqing University Central Hospital/Chongqing Emergency Medical CenterChongqing 400014China Department of Surgery of Traditional Chinese Medicine Affi liated Hospital of Jiangxi University of Chinese MedicineNanchang 330006China Department of Emergency Medicine the Fifth Affi liated Hospital of Wenzhou Medical University/Lishui Central HospitalLishui Hospital of Zhejiang UniversityLishui 323000China General Surgery Department the First Affi liated Hospital of Zhejiang Chinese Medical UniversityHangzhou 310006China Emergency Department Shengli Clinical Medical College of Fujian Medical UniversityFuzhou 350001China Emergency Department Chongqing University Fuling HospitalChongqing UniversityChongqing 408000China Emergency Department the First Affi liated Hospital of Guangxi Medical UniversityNanning 530021China Emergency Department the Second Affi liated Hospital of Zhejiang University School of MedicineHangzhou 310009China Emergency Department Wuming Hospital of Guangxi Medical UniversityNanning 530021China Emergency Department Central People's Hospital of ZhanjiangZhanjiang 524037China Emergency Department Hunan Provincial People's HospitalChangsha 410005China Emergency Department National Geriatrics Center of Beijing HospitalBeijing 100020China Emergency Department the Fourth Medical Center of the PLA General HospitalBeijing 100048China Emergency Department China-Japan Friendship HospitalBeijing 100029China Emergency Department Peking Union Medical College HospitalBeiJing 100730China Emergency Department Sichuan Academy of Medical Sciences/Sichuan Provincial People's HospitalChengdu 610072China Research Unit of Island Emergency

In 2009,the World Health Organization included snakebite on the list of neglected tropical diseases,acknowledging it as a common occupational hazard for farmers,plantation workers,and others,causing tens of thousands of deaths and chronic physical disabilities every *** guideline aims to provide practical information to help clinical professionals evaluate and treat snakebite *** recommendations are based on clinical experience and clinical research *** guideline focuses on the following topics:snake venom,clinical manifestations,auxiliary examination,diagnosis,treatments,and prevention.

关键词： Snakebite Envenomation Management Prevention

非通用语种专业课程思政探索：使命、情怀、视野

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外语与外语教学 2024年第4期 1-8+146页

作者：张国强大连外国语大学韩国语学院

在中华民族伟大革命和复兴的征程中，非通用语教育始终回应时代需求，响应国家号召，服务民族复兴，致力于培养外交、改革开放、构建人类命运共同体需要的人才，体现了专业教育中实施课程思政的历史必然性。新时代非通用语种专业人才培... 详细信息

在中华民族伟大革命和复兴的征程中，非通用语教育始终回应时代需求，响应国家号召，服务民族复兴，致力于培养外交、改革开放、构建人类命运共同体需要的人才，体现了专业教育中实施课程思政的历史必然性。新时代非通用语种专业人才培养，还需主动服务于“一带一路”建设和人类命运共同体的构建，处理好国家需求、学生个人发展与外语习得规律三要素的关系，把家国情怀的培养作为课程思政的核心要义。非通用语种专业课程思政建设要有大视野，并适应新文科背景下“价值塑造”和“自主知识体系构建”的要求，进行全方位、多维度的设计，打造好主力军、建设好课程链，推进一二三课堂联动。

关键词：课程思政非通用语价值塑造家国情怀课程链

资源融合分配的洋葱路由网络用户守卫节点操纵

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清华大学学报（自然科学版） 2024年第8期64卷 1293-1305页

作者：张国强徐明伟清华大学计算机科学与技术系北京100084 清华大学网络科学与网络空间研究院北京100084

第二代洋葱路由网络(the second-generation onion router,Tor)面临流量分析去匿名化威胁,分析用户流量获取成本是评估其威胁程度的重要内容。然而,现有的用户流量获取方法较少研究费效比问题。Tor客户端构建匿名通信路径时使用的守卫节... 详细信息

第二代洋葱路由网络(the second-generation onion router,Tor)面临流量分析去匿名化威胁,分析用户流量获取成本是评估其威胁程度的重要内容。然而,现有的用户流量获取方法较少研究费效比问题。Tor客户端构建匿名通信路径时使用的守卫节点,是敌手获取用户流量的重要途径。该文针对守卫节点操纵,提出一种资源融合分配的成本优化模型:P-Group(push and pull guards through optimized resource portfolios)模型,并在此基础上进行流量分析威胁评估。P-Group模型统筹分配守卫节点操纵过程中部署可控节点和拥塞非可控节点所需的资源。同时,通过排队论方法对拥塞非可控节点的过程进行建模,利用改进的流偏移技术统筹拥塞攻击资源总量与非可控节点带宽容量以提升资源分配效益。实验结果表明:P-Group模型能够有效降低费效比;相比于简单在部署和拥塞节点间平分带宽,该模型将资源分配效益提升了20.5%;相比于传统攻击流量分配算法,其部署的可控节点中选率提升了15%;敌手操纵用户流量从非可控节点迁移到可控节点的平均成本约为数百美元。这表明用户流量获取具有成本可行性,Tor流量分析构成现实威胁。

关键词：第二代洋葱路由网络守卫节点带宽消耗流偏移

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基于局部皮肤温度的床上微环境控制策略

湖南大学学报（自然科学版） 2024年第5期51卷 207-216页

作者：宋鸽艾正涛张国强湖南大学土木工程学院湖南长沙410082 国家建筑安全与环境国际联合研究中心(湖南大学) 湖南长沙410082

通风床垫被设计成通过位于脚部附近的通风口抽走床上微环境的污染空气以达到源头控制污染物的目的.实验研究发现通风床垫的使用有造成局部冷不适的风险,同时使用通风床垫和局部加热装置,并根据受试者反馈实时调控,可以解决冷不适问题,... 详细信息

通风床垫被设计成通过位于脚部附近的通风口抽走床上微环境的污染空气以达到源头控制污染物的目的.实验研究发现通风床垫的使用有造成局部冷不适的风险,同时使用通风床垫和局部加热装置,并根据受试者反馈实时调控,可以解决冷不适问题,并满足不同用户的热微环境需求.为了探究通风床垫耦合局部加热装置基于局部皮肤温度的自动控制潜力,对比了30名受试者在室温下清醒地躺在通风床垫上时前额、右肩胛骨、左上胸、右上臂、左下臂、左手、右大腿前侧、左小腿后侧、右脚背、左脚背10个部位的皮肤温度和总体、面部、额头、颈部、胸部、背部、手臂、手、大腿、小腿、脚的热可接受度.结果显示:女性的局部皮肤温度与男性相比普遍较低,而可接受度较高.高斯回归模型可以计算出每个部位最佳皮肤温度区间,结合各部位的可接受度关联矩阵结果及通风床垫及局部加热的控制潜力,最终选取脚部、手部和背部的皮肤温度以实现床上微环境的个性化自动控制.本研究提供了通风床垫基于局部皮肤温度的自动控制潜力研究的新思路和建议,可以为床上微环境的优化和改善提供一定参考.

关键词：床上微环境通风床垫皮肤温度可接受度高斯回归

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Multi-layer phenomena in petawatt laser-driven acceleration of heavy ions

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Plasma Science and Technology 2024年第2期26卷 70-76页

作者：苏琬晴曹喜光马春旺王玉廷张国强 College of Physics Henan Normal UniversityXinxiang 453007People's Republic of China Shanghai Advanced Research Institute Chinese Academy of SciencesShanghai 201210People's Republic of China Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800People's Republic of China University of Chinese Academy of Sciences Bejing 100049People's Republic of China Institute of Nuclear Science and Technology Henan Academy of ScienceZhengzhou 450046People's Republic of China

Laser-accelerated high-flux-intensity heavy-ion beams are important for new types of accelerators.A particle-in-cell program(Smilei) is employed to simulate the entire process of Station of Extreme Light(SEL) 100 PW laser-accelerated heavy particles using different nanoscale short targets with a thickness of 100 nm Cr, Fe, Ag, Ta, Au, Pb, Th and U, as well as 200 nm thick Al and Ca. An obvious stratification is observed in the simulation. The layering phenomenon is a hybrid acceleration mechanism reflecting target normal sheath acceleration and radiation pressure acceleration, and this phenomenon is understood from the simulated energy spectrum,ionization and spatial electric field distribution. According to the stratification, it is suggested that high-quality heavy-ion beams could be expected for fusion reactions to synthesize superheavy nuclei. Two plasma clusters in the stratification are observed simultaneously, which suggest new techniques for plasma experiments as well as thinner metal targets in the precision machining process.

关键词： petawatt laser-plasma interaction laser-driven heavy-ion accelerator for synthesizing superheavy nuclei particle-in-cell multi-layer phenomena target fabrication