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Efficient photocatalytic biomass-alcohol conversion with simultaneous hydrogen evolution over ultrathin 2D NiS/Ni-CdS photocatalyst

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Chinese Chemical Letters 2024年第7期35卷 422-427页

作者： Zongyi Huang cheng Guo Quanxing Zheng hongliang Lu Pengfei Ma Zhengzhong Fang Pengfei Sun Xiaodong Yi Zhou chen State Key Laboratory of Physical Chemistry of Solid Surfaces College of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005China College of Materials Key Laboratory of High Performance Ceramic Fibers(Xiamen University)Ministry of EducationXiamen UniversityXiamen 361005China Technology Center China Tobacco Fujian Industrial Co.Ltd.Xiamen 361021 China

The photocatalytic conversion of biomass into high-value chemicals,coupled with simultaneous hydrogen(H_(2))evolution,leveraging the electrons and holes generated by solar energy,holds great promise for addressing energy *** this study,we constructed a dual functional photocatalytic system formed by NiS loaded on Ni doped two-dimensional(2D)CdS nanosheet(NiS/Ni-CdSNS)heterostructure for visible-light-driven H_(2)evolution and ethanol oxidation to ***,the 2D NiS/NiCdSNS exhibited significant activity and selectivity in both photocatalytic H_(2)evolution and ethanol oxidation,achieving yields of 7.98 mmol g^(-1)h^(-1)for H_(2)and 7.33 mmol g^(-1)h^(-1)for *** heterogeneous interface of the composite facilitated efficient charge separation,while NiS provided abundant sites for proton reduction,thereby promoting the overall dual-functional photocatalytic *** functional theory calculations further reveal that both Ni doping and NiS loading can reduce the reaction energy barrier of ethanol oxidation of free radicals,and NiS/Ni-CdSNS composite materials exhibit stronger ethanol C-H activation ability to generate key intermediate·CH(OH)CH_(3)on the *** work serves as a valuable guide for the rational design of efficient dual functional photocatalytic systems that combine H_(2)evolution with the selective conversion of organic compounds into high-value chemicals.

关键词： Photocatalysis Biomass-alcohol oxidation H_(2)evolution Dual-functional catalysis

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Non-weight modules over the algebra SW(b)

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Science China Mathematics 2024年

作者： Yan Liu Xinyue Wang Yao Ma Liangyun chen School of Mathematics and Statistics Northeast Normal University

In this paper, we denote the semi-direct product of the Witt algebra and the loop Schr?dinger algebra by SW(b), where b belongs to C. Our primary focus is on classifying U(Cd0 ⊕ Ch0)-free modules of rank1 over SW(b). We characterize both the irreducibility and isomorphism classes of these modules. Furthermore,we construct new non-weight modules over SW(0) by taking the tensor product of U(Cd0 ⊕ Ch0)-free modules with irreducible highest weight modules. We also consider the irreducibility and isomorphism classes for the tensor product modules. Finally, we reformulate some tensor product modules over SW(0) as induced modules derived from modules over certain subalgebras.

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Discovery and characterization of a new hydrothermal field at 2°N on the slow-spreading Carlsberg Ridge

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Journal of Oceanology and Limnology 2024年第4期42卷 1106-1118页

作者： Zhongyan QIU Yejian WANG Xiqiu HAN honglin LI Xing YU Ruyong CUI Mou LI Xuegang chen Jiqiang LIU Key Laboratory of Submarine Geosciences&Second Institute of Oceanography Ministry of Natural ResourcesHangzhou 310012China Qingdao Institute of Marine Geology China Geological SurveyQingdao 266071China School of Earth Science Zhejiang UniversityHangzhou 310027China Ocean College Zhejiang UniversityZhoushan 316021China

A new hydrothermal field(Tianshi)was discovered on the rift valley wall through plume anomaly surveys and geological work conducted in 2012 and 2018 between 2°35′N and 2°43′N of the slow-spreading Carlsberg Ridge(CR).Here,the results of two expeditions conducted to detect and characterize the new hydrothermal field are *** and geochemical data,as well as 14 C ages of a sediment core collected near the field are presented to reveal the hydrothermal *** show that the Tianshi field is a basalt-hosted hydrothermal *** data of the sediments collected near the field indicate a strong hydrothermal contribution,and hydrothermal Fe and Cu fluxes range from 30 to 155 mg/(cm^(2)·ka)and 0.59 to 11.49 mg/(cm^(2)·ka),*** variations in the fluxes of hydrothermal Fe indicate that there have been at least three amplified hydrothermal venting events(H 1,H 2,and H 3)in the Tianshi field over the last 35.2 ka,in 28.6-35.2 ka BP,22.0-27.6 ka BP,and 1.2-11.4 ka BP,*** event H 2 was driven by an increased magmatic production associated with sea level fall during the Last Glacial Maximum,while event H 3 was promoted by tectonic activity associated with a rapid sea level *** study further verified the role of sea level change in modulating hydrothermal activity on mid-ocean ridges.

关键词： plume anomaly sediment core new hydrothermal field hydrothermal history Carlsberg Ridge

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红皮云杉人工林树冠特征与生长形质的关系及间伐与修枝对其影响

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西北林学院学报 2024年第2期39卷 91-96,202页

作者：邢鸿林赵彩鸿沈忱杨蕾沈海龙杨玲林木遗传育种国家重点实验室东北林业大学林学院黑龙江哈尔滨150040

为了解红皮云杉(Picea koraiensis)人工林树冠特征与生长形质的关系,分析不同间伐与修枝组合对红皮云杉人工林树冠特征与生长形质影响规律,明确抚育管理措施强度,为红皮云杉大径材培育技术的建立提供参考依据。以黑龙江省佳木斯市孟家... 详细信息

为了解红皮云杉(Picea koraiensis)人工林树冠特征与生长形质的关系,分析不同间伐与修枝组合对红皮云杉人工林树冠特征与生长形质影响规律,明确抚育管理措施强度,为红皮云杉大径材培育技术的建立提供参考依据。以黑龙江省佳木斯市孟家岗林场47 a红皮云杉人工中龄林木为研究对象,利用多目标一维比较法对林木生长形质进行综合评价,采用通径分析方法分析树冠特征与生长形质及综合评价值之间的关系,明确不同间伐与修枝组合对林木生长的影响。结果表明,冠幅、冠形率对树高、胸径、单株材积、活枝下高与生长形质综合指标具有显著正向作用,但冠长率对其具有显著负向作用(P0.05);随着间伐强度的增加及修枝强度的降低,林木树高、胸径、单株材积增加,且具有显著差异(P<0.05)。因此,树冠形态特征因子对红皮云杉生长形质性状因子具有显著直接作用。培育红皮云杉大径材首先要有宽大的冠幅,其次要有狭长的冠形和较小的冠长率。高强度间伐低强度修枝(30%间伐,1/5树高修枝)的管理方式可促进红皮云杉中龄林树高、胸径的生长。

关键词：红皮云杉树冠特征生长形质间伐修枝

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Effect of fracture fluid flowback on shale microfractures using CT scanning

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Journal of Rock Mechanics and Geotechnical Engineering 2024年第2期16卷 426-436页

作者： Jiale He Zhihong Zhao Yiran Geng Yuping chen Jianchun Guo Cong Lu Shouyi Wang Xueliang Han Jun Zhang State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum UniversityChengdu610500China Key Laboratory of Thermo-Fluid Science and Engineering of Ministry of Education School of Energy and Power EngineeringXi’an Jiaotong UniversityXi’an710049China Drilling Test Engineering Department of Longdong Oil and Gas Development Company Changqing OilfieldPetroChina Company LimitedQingyang745000China Tight Oil and Gas Exploration and Development Project Department PetroChina Southwest Oil and Gas Field CompanyChengdu610056China No.11 Oil Production Plant Changqing Oilfield CompanyPetroChina Company LimitedQingyang745000China

The field data of shale fracturing demonstrate that the flowback performance of fracturing fluid is different from that of conventional reservoirs,where the flowback rate of shale fracturing fluid is lower than that of conventional *** the early stage of flowback,there is no single-phase flow of the liquid phase in shale,but rather a gas-water two-phase flow,such that the single-phase flow model for tight oil and gas reservoirs is not *** this study,pores and microfractures are extracted based on the experimental results of computed tomography(CT)scanning,and a spatial model of microfractures is ***,the influence of rough microfracture surfaces on the flow is corrected using the modified cubic law,which was modified by introducing the average deviation of the microfracture height as a roughness factor to consider the influence of microfracture surface *** flow in the fracture network is simulated using the modified cubic law and the lattice Boltzmann method(LBM).The results obtained demonstrate that most of the fracturing fluid is retained in the shale microfractures,which explains the low fracturing fluid flowback rate in shale hydraulic fracturing.

关键词： Shale Flowback of fracturing fluid Microfracture Lattice Boltzmann method(LBM)

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The generation and use of animal models of osteosarcoma in cancer research

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Genes & Diseases 2024年第2期11卷 664-674页

作者： Feifei Pu Haoyu Guo Deyao Shi Fengxia chen Yizhong Peng Xin Huang Jianxiang Liu Zhicai Zhang Zengwu Shao Department of Orthopedics Wuhan Hospital of Traditional Chinese and Western Medicine (Wuhan No.1 Hospital)Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei 430022China Department of Orthopedics Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei 430022China Department of Radiation and Medical Oncology Zhongnan HospitalWuhan UniversityWuhanHubei 430071China Hubei Cancer Clinical Study Center Zhongnan HospitalWuhan UniversityWuhanHubei 430071China

Osteosarcoma is the most common malignant bone tumor affecting children and ***,the most common treatment is surgery combined with neoadjuvant *** the survival rate of patients with osteosarcoma has improved in recent years,it remains poor when the tumor(s)progress and distant metastases ***,better animal models that more accurately replicate the natural progression of the disease are needed to develop improved prognostic and diagnostic markers,as well as targeted therapies for both primary and metastatic *** present review described animal models currently being used in research investigating osteosarcoma,and their characteristics,advantages,and *** models may help elucidate the pathogenic mechanism(s)of osteosarcoma and provide evidence to support and develop clinical treatment strategies.

关键词： Animal model Cancer Osteosarcoma Pathogenic mechanism Translational research

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Recent advances of mechanosensitive genes in vascular endothelial cells for the formation and treatment of atherosclerosis

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Genes & Diseases 2024年第3期11卷 206-219页

作者： Shuyu Li Zichen Xu Yi Wang Lizhao chen Xiangxiu Wang Yanghao Zhou daoxi Lei Guangchao Zang Guixue Wang Key Laboratory of Biorheological Science and Technology of Ministry of Education National and Local Joint Engineering Laboratory for Vascular ImplantsBioengineering College of Chongqing UniversityChongqing 400030China College of Basic Medical Sciences Chongqing Medical UniversityChongqing 400016China Department of Neurosurgery Daping HospitalArmy Medical Center of PLAArmy Medical UniversityChongqing 400042China

Atherosclerotic cardiovascular disease and its complications are a high-incidence disease *** studies have shown that blood flow shear has a huge impact on the function of vascular endothelial cells,and it plays an important role in gene regulation of pro-inflammatory,pro-thrombotic,pro-oxidative stress,and cell *** impor-tant endothelial cell mechanosensitive genes have been discovered,including KLK10,CCN gene family,NRP2,YAP,TAZ,HIF-1α,NF-kB,FOS,JUN,TFEB,KLF2/KLF4,NRF2,and *** of them have been intensively studied,whereas the relevant regulatory mechanism of other genes remains *** on these mechanosensitive genes will provide new strategies for therapeutic intervention in atherosclerotic vascular ***,this article reviews the mechanosensitive genes affecting vascular endothelial cells,including classical pathways and some newly screened genes,and summarizes the latest research progress on their roles in the pathogenesis of atherosclerosis to reveal effective therapeutic targets of drugs and provide new insights foranti-atherosclerosis.

关键词： Atherosclerosis Blood flow Endothelial cell Mechanosensitive gene Therapeutic target

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Enabling superior electrochemical performance of NCA cathode in Li_(5.5)PS_(4.5)Cl_(1.5)-based solid-state batteries with a dual-electrolyte layer

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Chinese Chemical Letters 2024年第4期35卷 231-236页

作者： Ziling Jiang Shaoqing chen Chaochao Wei Ziqi Zhang Zhongkai Wu Qiyue Luo Liang Ming Long Zhang Chuang Yu School of Chemistry and Chemical Engineering Huazhong University of Science and TechnologyWuhan 430074China State Key Laboratory of Advanced Electromagnetic Engineering and Technology School of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430074China Innovation Center for Chemical Sciences College of ChemistryChemical Engineering and Materials ScienceSoochow UniversitySuzhou 215123China College of Physics and Energy Fujian Normal UniversityFuzhou 350117 China

LiNi_(0.8)Co_(0.15)Al_(0.05)O_(2)(NCA) is a promising cathode for sulfide-based solid-state lithium batteries(ASSLBs)profiting from its high specific capacity and voltage plateau, which yielding high energy density. However, the inferior interfacial stability between the bare NCA and sulfides limits its electrochemical performance. Hereien, the dual-electrolyte layer is proposed to mitigate this effect and enhance the battery performances of NCA-based ASSLIBs. The Li_(3)InCl_6 wih high conductivity and excellent electrochemcial stability act both as an ion additives to promote Li-ion diffusion across the interface in the cathode and as a buffer layer between the cathode layer and the solid electrolyte layer to avoid side reactions and improve the interface stability. The corresponding battery exhibits high discharge capacities and superior cyclabilities at both room and elevated temperatures. It exhibits discharge performance of 237.04 and216.07 m Ah/g at 0.1 and 0.5 C, respectively, when cycled at 60 ℃, and sustains 95.9% of the capacity after100 cycles at 0.5 C. The work demonstrates a simple strategy to ensure the superior performances of NCA in sulfide-based ASSLBs.

关键词： LiNi_(0.8)Co_(0.15)Al_(0.05)O_(2) Li_(5.5)PS_(4.5)Cl_(1.5) Double solid electrolyte layer configuration Operating temperatures Electrochemical performances

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抗坏血酸改性Mn_(3)O_(4)活化过硫酸氢盐降解磺胺甲恶唑

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中国环境科学 2024年第1期44卷 158-166页

作者：陈婧宋炳皞朱雷陈宏张杰姜恒于翰博储琨刘紫丹长沙理工大学水利与环境工程学院湖南长沙410114 洞庭湖水环境治理与生态修复湖南省重点实验室湖南长沙410114 湖南省水利水电勘测设计规划研究总院有限公司湖南长沙410007 湖南省洞庭湖防洪及水资源保障工程技术研究中心湖南长沙410007

采用水热-超声法制备抗坏血酸(AA)改性的Mn_(3)O_(4)(AA-MO),并通过XRD、FTIR、SEM、TEM和XPS等技术手段表征样品的物理化学性质.将AA-MO用于活化过硫酸氢盐(PMS)降解磺胺甲恶唑(SMX),结果表明,AA-MO/PMS体系在2.0~10.0的pH值范围内催... 详细信息

采用水热-超声法制备抗坏血酸(AA)改性的Mn_(3)O_(4)(AA-MO),并通过XRD、FTIR、SEM、TEM和XPS等技术手段表征样品的物理化学性质.将AA-MO用于活化过硫酸氢盐(PMS)降解磺胺甲恶唑(SMX),结果表明,AA-MO/PMS体系在2.0~10.0的pH值范围内催化效能先升后降,在中性和偏中性环境中具有最佳降解效果.PMS浓度和催化剂投加量的增大均能有效促进SMX的降解.稳定性实验显示,在3次循环使用后AA-MO相比MO具有更稳定的催化效能.自由基淬灭结果表明硫酸根自由基(SO_(4)^(·-))在降解反应中起主导作用.AA-MO与PMS之间的电子转移反应产生自由基降解SMX,AA的抗氧化性维持了复合催化剂的高催化性.通过高效液相色谱-串联质谱联用(HPLC-MS/MS)测定了降解过程中可能的6种中间产物.SMX通过开环、S-N键断裂、羟基化以及氧化作用等3种路径被降解.通过ECOSAR软件计算物质的毒性阈值并进行毒理分析,需要关注产物P2、P5和P7的毒性.

关键词：抗坏血酸 Mn_(3)O_(4) 过硫酸氢盐磺胺甲恶唑催化降解高级氧化

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基于改进贝叶斯更新方法的边坡参数概率反分析及可靠度评估

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岩土力学 2024年第3期45卷 835-845页

作者：胡鸿鹏蒋水华陈东黄劲松周创兵南昌大学工程建设学院江西南昌330031 江西省天然气集团有限公司管道分公司江西南昌330096

某一特定场地的岩土力学参数在地质作用下普遍呈现固有的不确定性,融合现场观测数据进行概率反分析可有效缩减这一不确定性。虽然基于子集模拟的贝叶斯更新(Bayesian Updating with Subset simulation,简称BUS)方法可以将等量场地信息... 详细信息

某一特定场地的岩土力学参数在地质作用下普遍呈现固有的不确定性,融合现场观测数据进行概率反分析可有效缩减这一不确定性。虽然基于子集模拟的贝叶斯更新(Bayesian Updating with Subset simulation,简称BUS)方法可以将等量场地信息的高维概率反分析问题转化为等效的结构可靠度问题,但是当现场观测数据增多时,构建的似然函数值会变得非常小,甚至低于计算机浮点运算精度,会严重影响概率反分析计算效率与精度。为此,提出了一种基于并联系统可靠度分析的改进BUS方法,从基于乔列斯基分解的中点法出发,将接受率低的总失效区域分解为多个接受率高的子失效区域,从而避免因融合大量现场观测数据引起的“维度灾难”问题,实现对边坡岩土力学参数的准确概率反分析。最后,通过一不排水饱和黏土边坡案例验证了提出方法的有效性,结果表明提出的方法能够融合大量钻孔数据和边坡服役状态等观测信息高效进行岩土力学参数概率反分析及边坡可靠度评估,为高维空间变异参数概率反分析和边坡可靠度评估提供了一种有效的工具。

关键词：边坡空间变异性似然函数分解贝叶斯更新概率反分析可靠度评估

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