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Green Energy & Environment 2021年第1期6卷 15-21页

作者： Xuezhong he Department of Chemical Engineering Norwegian University of Science and TechnologyN-7491TrondheimNorway

There is an urgent need to develop technologies which enable the conversion of biomass into liquid biofuels to fill the gap between limited fossil fuel supplies and increasing worldwide *** order to achieve the EU 2030 vision of at least 15%of the fuels used in the road transportation sector will be biofuels derived from non-food biomass feedstocks,the R&D of clean,inexpensive,highly end-user compatible biofuels from a virtually inexhaustible source of biomass should be pursued to make breakthroughs in cost-effective biomass to liquid biofuels(BTL)***,an innovative,consolidated,and sustainable technology using a hybrid digestion-gasification process integrated with membranes to produce next generation bio-alcohols from different biomass feedstocks was *** proposed concept was theoretically estimated to achieve an overall BTL efficiency of 44%and a cost reduction for bioalcohol production of 18.6%.Moreover,this technology can potentially achieve an overall CO2 emission reduction of>75%for road transport based on the preliminary analysis.

关键词： Biofuels Biomass Chemical looping gasification Membrane Anaerobic digestion

Fundamental Perspectives on the Electrochemical Water Applications of Metal-Organic Frameworks

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Nano-Micro Letters 2023年第9期15卷 337-367页

作者： Xiang he Department of Mechanical and Civil Engineering Florida Institute of TechnologyMelbourneFL 32901USA

Metal-organic frameworks(MOFs),a family of highly porous materials possessing huge surface areas and feasible chemical tunability,are emerging as critical functional materials to solve the growing challenges associated with energy-water systems,such as water scarcity *** this contribution,the roles of MOFs are highlighted in electrochemical-based water applications(i.e.,reactions,sensing,and separations),where MOF-based functional materials exhibit outstanding performances in detecting/removing pollutants,recovering resources,and harvesting energies from different water *** with the pristine MOFs,the efficiency and/or selectivity can be further enhanced via rational structural modulation of MOFs(e.g.,partial metal substitution)or integration of MOFs with other functional materials(e.g.,metal clusters and reduced graphene oxide).Several key factors/properties that affect the performances of MOF-based materials are also reviewed,including electronic structures,nanoconfined effects,stability,conductivity,and atomic *** advancement in the fundamental understanding of these key factors is expected to shed light on the functioning mechanisms of MOFs(e.g.,charge transfer pathways and guest-host interactions),which will subsequently accelerate the integration of precisely designed MOFs into electrochemical architectures to achieve highly effective water remediation with optimized selectivity and long-term stability.

关键词： Water remediation Electrochemistry Local structures Pair distribution function Redox-active MOFs

Direct and highly selective conversion of CO_2 into gasoline fuels over a bifunctional catalyst

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Science China Chemistry 2017年第9期60卷 1145-1146页

作者： Mingyuan he School of Chemistry and Molecular Engineering East China Normal UniversityShanghai 200062China

CO2 is an economical, nontoxic, renewable and abundant car-bon source. The chemical utilization of CO2 into value-addedproducts is very attractive because it can not only alleviatethe global warming caused by increasing atmospheric CO2concentration, but also offer a solution to replace dwindlingfossil fuels [ 1 ]. Thus, much attention has been paid to theCO2 conversion to various C1 feedstock （e.g., CH4, CH3OH,CO, HCOOH）. However, due to the extreme inertness of CO2and a high C-C coupling barrier.

关键词：中国科学化学英文版

Sulfolane‑Based Flame‑Retardant Electrolyte for High‑Voltage Sodium‑Ion Batteries

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Nano-Micro Letters 2025年第2期17卷 498-516页

作者： Xuanlong he Jie Peng Qingyun Lin Meng Li Weibin Chen Pei Liu Tao Huang Zhencheng Huang Yuying Liu Jiaojiao Deng Shenghua Ye Xuming Yang Xiangzhong Ren Xiaoping Ouyang Jianhong Liu Biwei Xiao Jiangtao Hu Qianling Zhang Graphene Composite Research Center College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhen 518060People’s Republic of China Center of Electron Microscopy State Key Laboratory of Silicon and Advanced Semiconductor MaterialsSchool of Materials Science and EngineeringZhejiang UniversityHangzhou 310027People’s Republic of China GRINM(Guangdong)Research Institute for Advanced Materials and Technology FoshanGuangdong 528051People’s Republic of China College of Energy Engineering Zhejiang UniversityHangzhouZhejiang 310027People’s Republic of China School of Materials Science and Engineering Xiangtan UniversityXiangtan 411105People’s Republic of China Shenzhen Eigen-Equation Graphene Technology Co.Ltd Shenzhen 518000People’s Republic of China

Sodium-ion batteries hold great promise as next-generation energy storage ***,the high instability of the electrode/electrolyte interphase during cycling has seriously hindered the development of *** particular,an unstable cathode–electrolyte interphase(CEI)leads to successive electrolyte side reactions,transition metal leaching and rapid capacity decay,which tends to be exacerbated under high-voltage ***,constructing dense and stable CEIs are crucial for high-performance *** work reports localized high-concentration electrolyte by incorporating a highly oxidation-resistant sulfolane solvent with non-solvent diluent 1H,1H,5H-octafluoropentyl-1,1,2,2-tetrafluoroethyl ether,which exhibited excellent oxidative stability and was able to form thin,dense and homogeneous *** excellent CEI enabled the O3-type layered oxide cathode NaNi_(1/3)Mn_(1/3)Fe_(1/3)O_(2)(NaNMF)to achieve stable cycling,with a capacity retention of 79.48%after 300 cycles at 1 C and 81.15%after 400 cycles at 2 C with a high charging voltage of 4.2 *** addition,its nonflammable nature enhances the safety of *** work provides a viable pathway for the application of sulfolane-based electrolytes on SIBs and the design of next-generation high-voltage electrolytes.

关键词： Sodium-ion batteries Sulfolane-based electrolyte High voltage Layered oxide cathode Flame retardant

Overall efficiency optimization of controllable mechanical turbo-compounding system for heavy duty diesel engines

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Science China(Technological Sciences) 2017年第1期60卷 36-50页

作者： he GuanZhang XIE Hui he ShiJie State Key Laboratory of Engines Tianjin University Tianjin 300072 China School of Mechanical Engineering Tianjin University Tianjin 300072 China

A controllable mechanical turbo-compounding(CMTC) system including continuously variable transmission(CVT) and power turbine bypass valve is proposed to recover waste heat from engine exhaust. The combined matching principle considering swallowing capacity of both charging turbine and power turbine, main gear ratio is investigated at first based on the analysis of individual influence. Then the effects and strategies of CVT and power turbine bypass valve are studied for better performance under off-design conditions. At last, the transient response of intake pressure of engine with CMTC system is researched and the fuel saving potential is tested under driving cycle conditions. The results indicate that the overall fuel efficiency elevates at the off-design conditions if CVT is adopted due to the improvement of power turbine operating efficiency by speed modulation. The diversion of exhaust through power turbine bypass valve under the low load condition is necessary. The back pressure of the charging turbine infuences the transient response of intake pressure for a fixed CMTC configuration. A method featured by the assistance of power turbine bypass valve is tested to improve the transient response of the intake pressure. The fuel consumption reduces by 2% and 3.4% under highway fuel economy test(HWFET) and Tianjin 503(TJ503) driving cycles respectively.

关键词： heavy duty diesel engine waste heat recovery controllable mechanical turbo-compounding continuously variabletransmission device driving cycle transient response

基于残差U型网络与双判别网络的图像分割方法

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电子设计工程 2025年第1期33卷 7-11页

作者：何佳阳西安华为云计算技术有限公司陕西西安710119

生成对抗网络在图像领域应用十分广泛,但在细胞核图像分割领域中的应用研究相对较少。由于细胞核的精准分割对于病理诊断工作有极大帮助,故提出了基于残差U型网络与生成对抗网络的图像分割方法。该方法以ResUNet网络作为生成网络,Image ... 详细信息

生成对抗网络在图像领域应用十分广泛,但在细胞核图像分割领域中的应用研究相对较少。由于细胞核的精准分割对于病理诊断工作有极大帮助,故提出了基于残差U型网络与生成对抗网络的图像分割方法。该方法以ResUNet网络作为生成网络,Image GAN为双判别网络,训练过程使用双损失函数和冻结策略进行优化。改进后网络在PanNuke数据集上评价指标MioU、Dice、Acc分别为80%、93%、80%,相比ResUNet网络的实验结果分别提升了2.3%、1.7%、2.1%。实验结果证明,改进后网络对细胞核分割具有较好准确率,可作为病理诊断工作的重要依据。

关键词：图像分割细胞核图像生成对抗网络 ResUNet 双判别网络

Analysis of the Moderator Effect of RMB Exchange-- Rate on Export The Case of Guangdong Province in China

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Economics World 2017年第3期5卷 281-286页

作者： Yan Zhang Yan Zhou haojia Chen Macao University of Science and Technology Macao China Beijing Normal University Zhuhai China Macao University of Science and Technology Macao China Zhuhai College of Jilin University Zhuhai China Beijing Normal University Zhuhai China

An important limitation of the research literatures which study the effect on the export of the real effective exchange rates is the lack of application of interaction or moderator effect among the independent variables. To remedy this lacuna, the authors developed a model in which real effective exchange rate moderated the effect of import and utilization of foreign capital on export. The sample comprised 11 years＇ data in Guangdong China. The result showed that real effective exchange rate of RMB affected the export by interacting with utilization of foreign capital. Moreover, to some degree, the real effective exchange rate can also act as moderator between import and export.

关键词： import export real effective exchange rate (REER) utilization of foreign capital moderator effect

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组合-填充药型罩成型及侵彻靶板数值模拟

火工品 2025年第1期 44-50页

作者：张卿尚王志军伊建亚何卓朗太忻贺磊中北大学机电工程学院山西太原030051

针对聚能射流侵彻披挂爆炸反应装甲坦克顶部装甲的高效毁伤问题,提出了一种新型的组合-填充药型罩结构。采用非线性动力学分析软件AUTODYN-2D对射流形成和侵彻靶板过程进行了数值模拟,并分析了填充物材料和起爆方式对射流成型的影响以... 详细信息

针对聚能射流侵彻披挂爆炸反应装甲坦克顶部装甲的高效毁伤问题,提出了一种新型的组合-填充药型罩结构。采用非线性动力学分析软件AUTODYN-2D对射流形成和侵彻靶板过程进行了数值模拟,并分析了填充物材料和起爆方式对射流成型的影响以及炸高对侵彻性能的影响。研究结果表明:所提出的组合-填充药型罩可以形成首尾相连的两级串联射流,填充物采用铝和特氟龙时射流成型效果较好,但铝成型更加稳定;点环起爆形成的射流动能比单独点起爆形成的前级射流动能提高67.06%,后级射流动能提高29.51%;在炸高区间为2~6 CD(装药直径)时,成型射流均可以侵彻披挂爆炸反应装甲的坦克顶甲,并保持一定的剩余头部速度,且最佳炸高为5 CD。本研究对反披挂爆炸反应装甲坦克顶甲的新结构药型罩设计具有参考意义。

关键词：药型罩爆炸反应装甲填充物起爆方式炸高数值模拟

Changes in Brain activity during Flapping:Honeybee Cyborg Precise Control Exploration

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Changes in Brain activity during Flapping:Honeybee Cyborg Pr...

Objective Bayesian Analysis of Degradation Model with Respect to a Wiener Process

2023智能制造与机械动力学学术大会

作者： haojia Ding Shaoze Yan State Key Laboratory of Tribology Division of Intelligent and Biomechanical SystemsDepartment of Mechanical EngineeringTsinghua University

Compared with micro air vehicles(MAVs),insect cyborgs which use live insects as carriers have more advantages in flight or walking patterns and effective motion distance ***,there are some problems of low accuracy of control and obscure neuro-mechanisms of *** order to further the accurate control process of insect cyborgs,a series of electrical stimuli were applied on optic lobes of honeybees to explore optimal ***,local field potential(LFP) from optic lobes during honeybees' flapping and calm state were recorded and ***,the sensitive determinants to distinguish whether the honeybee was flying or not were proposed,which will benefit our understanding of honeybee's flight behavior and further the study of insect cyborgs.

关键词： Honeybee Cyborg Behavior Control

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Journal of Systems Science & Complexity 2016年第6期29卷 1737-1751页

作者： he Lei he Daojiang CAO Mingxiang Department of Statistics Anhui Normal University

This paper proposes an objective Bayesian method to study the degradation model with respect to a Wiener *** Jeffreys prior and reference prior for the parameters are derived,and the propriety of the posteriors under these priors is *** sampling algorithms are introduced to compute the posteriors.A simulation study is conducted to investigate the performance of the objective Bayesian ***,the authors apply the approach to a degradation data.

关键词： Degradation model Jeffreys prior objective Bayes reference prior.