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Preface to the special topic on metals and their compounds for lithium ion/metal batteries

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Tungsten 2024年第1期6卷 162-163页

作者： Ying-Ze Song Wen-Long cai gao-Ran Li State Key Laboratory of Environment-Friendly Energy Materials Southwest University of Science and TechnologyMianyang 621010China College of Materials Science and Engineering Sichuan UniversityChengdu 610064China School of Materials Science and Engineering Nanjing University of Science and TechnologyNanjing 210094China

The fast development of electronics and electric devices has inspired the practical application of lithium ion/metal *** this line,the metals and their compounds as electrode materials as well as the corresponding mechanism for energy storage have gained extensive international *** as-organized special topic focuses on W,Mo,Co,Zr,Hf,Re,Ta,Nb,V-based metals and their compounds for lithium ion/metal *** special topic involves four reviews and four research papers totally,providing the latest advances of transition metals and their related compounds for rechargeable lithium ion/metal batteries.

关键词： lithium metals gained

Application of GNSS-PPP on Dynamic Deformation Monitoring of Offshore Platforms

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China Ocean Engineering 2024年第2期38卷 352-361页

作者： YU Li-na XIONG Kuan gao Xi-feng LI Zhi FAN Li-long ZHANG Kai Institute of Ocean Energy and Intelligent Construction Tianjin University of TechnologyTianjin 300384China China Railway Construction Bridge Engineering Bureau Group Co.LTD Tianjin 300300China School of Civil Engineering Tianjin UniversityTianjin 300072China Department of Land Surveying and Geo-Informatics The Hong Kong Polytechnic UniversityHong KongChina State Key Laboratory of Precision Blasting Jianghan UniversityWuhan 430056China

The real-time dynamic deformation monitoring of offshore platforms under environmental excitation is crucial to their safe *** Global navigation Satellite System-Precise Point Positioning(GNSS-PPP)has been considered for this purpose,its monitoring accuracy is relatively ***,the influence of background noise on the dynamic monitoring accuracy of GNSS-PPP remains ***,it is imperative to further validate the feasibility of GNSS-PPP for deformation monitoring of offshore *** address these concerns,vibration table tests with different amplitudes and frequencies are *** results demonstrate that GNSS-PPP can effectively monitor horizontal vibration displacement as low as±30 mm,which is consistent with ***,the spectral characteristic of background noise in GNSS-PPP is similar to that of GNSS-RTK(Real Time Kinematic).Building on this observation,an improved Complete Ensemble Empirical Mode Decomposition with Adaptive Noise(CEEMDAN)has been proposed to de-noise the data and enhance the dynamic monitoring accuracy of *** monitoring application research is also undertaken,successfully extracting and analyzing the dynamic deformation of an offshore platform structure under environmental excitation using GNSS-PPP monitoring in conjunction with improved CEEMDAN *** comparing the de-noised dynamic deformation trajectories of the offshore platform during different periods,it is observed that the platform exhibits reversible alternating vibration responses under environmental excitation,with more pronounced displacement deformation in the direction of load *** research results confirm the feasibility and potential of GNSS-PPP for dynamic deformation monitoring of offshore platforms.

关键词： GNSS-PPP offshore platform dynamic deformation monitoring improved CEEMDAN de-noising

Testing method of rock structural plane using digital drilling

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Journal of Rock Mechanics and Geotechnical Engineering 2024年第7期16卷 2563-2578页

作者： Qi Wang Yuncai Wang Bei Jiang Hongke gao Fenglin Ma Dahu Zhai Songlin cai State Key Laboratory for Tunnel Engineering China University of Mining and Technology(Beijing)Beijing100083China

The rock mass consists of rock blocks and structural planes,which can reduce its integrity and ***,accurately obtaining the characteristics of the rock mass structural plane is a prerequisite for evaluating stability and designing supports in underground ***,there are no effective testing methods for the characteristic parameters of the rock mass structural plane in underground *** paper presents the digital drilling technology as a new testing method of rock mass structural *** rock specimens with cracks of varying widths and angles were used to simulate the rock mass structural planes,and the multifunctional rock mass digital drilling test system was employed to carry out the digital drilling *** analysis focuses on the variation laws of drilling parameters,such as drilling pressure and drilling torque,affected by the characteristics of prefabricated cracks,and clarifies the degradation mechanism of rock equivalent compressive ***,an identification model for the characteristic parameters of rock mass structural planes during drilling is *** test results indicate that the average difference of the characteristics of prefabricated cracks identified by the equivalent compressive strength is 2.45and 0.82 mm,*** identification model while drilling is verified to be correct due to the high identification *** on this,a method for testing the characteristic parameters of the surrounding rock structural plane while drilling is *** research offers a theoretical and methodological foundation for precise in situ identification of structural planes of the surrounding rock in underground engineering.

关键词： Structural planes in the rock mass Digital drilling Drilling parameters Equivalent compressive strength Testing method

Mechanical reliable,NIR light-induced rapid self-healing hydrogel electrolyte towards flexible zinc-ion hybrid supercapacitors with low-temperature adaptability and long service life

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Journal of Energy Chemistry 2024年第5期92卷 63-73页

作者： Tengjia gao na Li Yang Yang Jing Li Peng Ji Yunlong Zhou Jianxiong Xu School of Materials and Advanced Manufacturing Hunan Key Laboratory of Electrochemical Green Metallurgy TechnologyHunan University of TechnologyZhuzhou 412007HunanChina School of Life Sciences and Chemistry Hunan Key Laboratory of Biomedical Nanomaterials and DevicesHunan University of TechnologyZhuzhou 412007HunanChina

Hydrogel electrolytes hold great potential in flexible zinc ion supercapacitors(ZICs)due to their high conductivity,good safety,and ***,freezing of electrolytes at low temperature(subzero)leads to drastic reduction in ionic conductivity and mechanical properties that deteriorates the performance of flexible ***,the mechanical fracture during arbitrary deformations significantly prunes out the lifespan of the flexible ***,a Zn^(2+)and Li^(+)co-doped,polypyrrole-dopamine decorated Sb_(2)S_(3)incorporated,and polyvinyl alcohol/poly(N-(2-hydroxyethyl)acrylamide)double-network hydrogel electrolyte is constructed with favorable mechanical reliability,anti-freezing,and self-healing *** addition,it delivers ultra-high ionic conductivity of 8.6 and 3.7 S m^(-1)at 20 and−30°C,respectively,and displays excellent mechanical properties to withstand tensile stress of 1.85 MPa with tensile elongation of 760%,together with fracture energy of 5.14 MJ m^(-3).Notably,the fractured hydrogel electrolyte can recover itself after only 90 s of infrared illumination,while regaining 83%of its tensile strain and almost 100%of its ionic conductivity during−30–60°***,ZICs coupled with this hydrogel electrolyte not only show a wide voltage window(up to 2 V),but also provide high energy density of 230 Wh kg^(-1)at power density of 500 W kg^(-1)with a capacity retention of 86.7%after 20,000 cycles under 20°***,the ZICs are able to retain excellent capacity even under various mechanical deformation at−30°*** contribution will open up new insights into design of advanced wearable flexible electronics with environmental adaptability and long-life span.

关键词： Flexible zinc ion supercapacitor Hydrogel electrolyte Self-healing Anti-freezing

Integrated application of synthetic community reduces consumption of herbicide in field Phalaris minor control

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Soil Ecology Letters 2024年第2期6卷 125-136页

作者： Amina Hadayat Zahir Ahmad Zahir Peng cai Chun-Hui gao national Key Laboratory of Agricultural Microbiology College of Resources and EnvironmentHuazhong Agricultural UniversityWuhan430070China Soil Microbiology and Biochemistry Laboratory Institute of Soil and Environmental SciencesUniversity of AgricultureFaisalabadPakistan

Herbicide-based weeds control impacts wheat crops as *** of Pseudomonas strains reduce the need for high-dose herbicides.100%Axial provides less weed control compared to 75%Axial with C4 *** 75%with C4 SynCom promotes... 详细信息

关键词： weed control synthetic microbial communities Phalaris minor wheat growth promotion synergistic effect

Advances in seismological methods for characterizing fault zone structure

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Earthquake Science 2024年第2期37卷 122-138页

作者： Yan cai Jianping Wu Yaning Liu Shijie gao Institute of Geophysics China Earthquake AdministrationBeijing 100081China Key Laboratory of Earthquake Source Physics China Earthquake AdministrationBeijing 100081China

Large earthquakes frequently occur along complex fault *** seismic rupture and long-term fault evolution requires constraining the geometric and material properties of fault zone *** provide a comprehensive overview of recent advancements in seismological methods used to study fault zone structures,including seismic tomography,fault zone seismic wave analysis,and seismicity *** conditions limit our current ability to fully characterize fault zones,for example,insufficient imaging resolution to discern small-scale anomalies,incomplete capture of crucial fault zone seismic waves,and limited precision in event location *** seismic arrays can overcome these limitations and enable more detailed investigations of fault zone ***,we present new insights into the structure of the Anninghe-Xiaojiang fault zone in the southeastern margin of the Qinghai-Xizang Plateau based on data collected from a dense seismic *** found that utilizing a dense seismic array can identify small-scale features within fault zones,aiding in the interpretation of fault zone geometry and material properties.

关键词： fault zone structure tomography fault zone wave seismic activity Anninghe-Xiaojiang fault zone

Association of stage 1 hypertension defined by the 2017 ACC/AHA guideline with cardiovascular events and mortality in Chinese adults

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Chinese Medical Journal 2024年第1期137卷 63-72页

作者： Qiannan gao Liuxin Li Jingjing Bai Luyun Fan Jiangshan Tan Shouling Wu Jun cai Hypertension Center Fuwai HospitalState Key Laboratory of Cardiovascular DiseaseNational Center for Cardiovascular DiseasesPeking Union Medical CollegeChinese Academy of Medical SciencesBeijing 100037China Department of Cardiology Kailuan General HospitalNorth China University of Science and TechnologyTangshanHebei 063000China Emergency Center Fuwai HospitalState Key Laboratory of Cardiovascular DiseaseNational Center for Cardiovascular DiseasesPeking Union Medical CollegeChinese Academy of Medical SciencesBeijing 100037China

Background:The 2017 American College of Cardiology/American Heart Association(ACC/AHA)blood pressure(BP)guideline lowered the threshold defining hypertension to 130/80 ***,how stage 1 hypertension defined using this guideline is associated with cardiovascular events in Chinese adults remains *** study assessed the association between stage 1 hypertension defined by the 2017 ACC/AHA guideline and clinical outcomes in the Chinese ***:Participants with stage 1 hypertension(n=69,509)or normal BP(n=34,142)were followed in this study from 2006/2007 to *** 1 hypertension was defined as a systolic blood pressure of 130-139 mmHg or a diastolic blood pressure of 80-89 *** were taking antihypertensive medication or had a history of myocardial infarction(MI),stroke,or cancer at *** primary outcome was a composite of MI,stroke,and all-cause *** secondary outcomes were individual components of the primary *** proportional hazards models were used for the ***:During a median follow-up of 11.09 years,we observed 10,479 events(MI,n=995;stroke,n=3408;all-cause mortality,n=7094).After multivariable adjustment,the hazard ratios for stage 1 hypertension *** BP were 1.20(95%confidence interval[CI],1.13-1.25)for primary outcome,1.24(95%CI,1.05-1.46)for MI,1.45(95%CI,1.33-1.59)for stroke,and 1.11(95%CI,1.04-1.17)for all-cause *** hazard ratios for participants with stage 1 hypertension who were prescribed antihypertensive medications compared with those without antihypertensive treatment during the follow-up was 0.90(95%CI,0.85-0.96).Conclusions:Using the new definition,Chinese adults with untreated stage 1 hypertension are at higher risk for MI,stroke,and all-cause *** finding may help to validate the new BP classification system in China.

关键词： Hypertension Cardiovascular disease All-cause mortality Cox regression analysis

Nickel-catalyzed carbonylative four-component 1,4-dicarbofunctionalization of 1,3-enynes

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Science China Chemistry 2024年第6期67卷 2029-2038页

作者： Yan Zhao Qi-Chao Shan Hong Xin Pin gao Xu Yang Xin-Hua Duan Li-na Guo Department of Chemistry School of ChemistryXi’an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy StorageMaterials and DevicesMinistry of EducationXi’an Jiaotong UniversityXi’an710049China School of Electrical Engineering Xi’an Jiaotong UniversityXi’an710049China

An efficient Ni-catalyzed four-component 1,4-carbocarbonylation of 1,3-enynes with activated alkyl halides and arylboronic acids under atmospheric pressure of CO is *** tuning the electronic and steric effects of alkyl radicals,both electronrich and electron-deficient 1,3-enynes were compatible with this *** protocol features mild conditions,broad substrate scope,excellent functional group compatibility and facile gram-scale synthesis,providing a practical approach to the quaternary carbon center-containing allenyl *** study revealed that the acyl-NiIIspecies plays an important role in both the coupling and the alkyl radical generation processes.

关键词： Ni catalysis four-component 1 4-carbocarbonylation 1 3-enynes

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High efficiency removal of NO using waste calcium carbide slag by facile KOH modification

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Journal of Environmental Sciences 2024年第5期139卷 182-192页

作者： Fang Wang Hui Li Jiyun gao na Geng Enzhu Jiang Futing Xia Mingwu Xiang Lijuan Jia Ping Ning School of Chemistry and Environment Yunnan Minzu UniversityKunming 650504China Faculty of Environmental Science and Engineering Kunming University of Science and TechnologyKunming 650500China

Waste calcium carbide slags(CS),which are widely applied to desulfurisation,are not typically used in ***,to well achieve waste control by waste,a facile and highefficiency denitration strategy is developed using KOH to modify the calcium carbide slags(KCS).Various KCS samples were investigated using a series of physical and chemical *** performance test results showed that the KOH concentration and reaction temperature are the main factors affecting the denitration efficiency of KCS,and CS modified with 1.5 mol/L KOH(KCS-1.5)can achieve 100% denitration efficiency at 300℃.Such excellent removal efficiency is due to the catalytic oxidation of the oxygen-containing functional groups derived from the *** studies showed that KOH treatment significantly increased the concentration of oxygen vacancies,nitro compounds,and basic sites of *** study provides a novel strategy for the resource utilisation of waste CS in the future.

关键词： Waste Carbide slag KOH Effective denitration