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Energy Geoscience 2024年第4期5卷 142-155页

作者： Shaozheng Wang Yaoqi zhou Xin Zhang Yangzhou Wang Yonghong Yang Yuehan shang Yang Chen Xiaoxin Shi School of Geosciences China University of Petroleum(East China)QingdaoShandong266580China Shandong Energy Group Co. Ltd.JinanShandong250101China Research Institute of Petroleum Exploration and Developement Shengli OilfieldDongyingShandong257000China

In China,geothermal resource utilization has mainly focused on resources at shallow and medium ***,the exploration of deep,high-temperature geothermal resources holds significant importance for achieving the“dual carbon”goals and the transition of energy *** Jiyang Depression in the Bohai Bay Basin has vast potential for deep,high-temperature geothermal *** analyzing data from 2187 wells with temperature logs and 270 locations for temperature measurement in deep strata,we mapped the geothermal field of shallow to medium-deep layers in the Jiyang Depression using ArcGIS and predicted the temperatures of deep layers with a burial depth of 4000 *** stochastic modeling and numerical simulation,a reservoir attribute parameter database for favorable deep,high-temperature geothermal areas was developed,systematically characterizing the spatial distribution of geothermal resources within a play fairway of 139.5 km2 and estimating the exploitable deep geothermal resource potential by using the heat storage method and Monte Carlo data *** study reveals that the Fan 54 well block in the Boxing-Jijia region is of prime significance to develop deep,high-temperature geothermal resources in the Jiyang *** from the Cenozoic to the Upper Paleozoic are identified as effective cap layers for these deep geothermal *** Lower Paleozoic capable of effectively storing thermal energy and possessing an exploitable resource volume up to 127 million tons of standard coal,is identified as a target system for the development of deep high-temperature geothermal resources,providing significant insights for the efficient development of geothermal resources in the Jiyang Depression.

关键词： Deep high-temperature geothermal resource Geological modeling Resource assessment Lower Paleozoic Jiyang Depression

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An unexpected stereochemical effect of thio-substituted Asp in native chemical ligation

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Chinese Chemical Letters 2024年第8期35卷 278-281页

作者： Min Fu Pan He Sen zhou Wenqiang Liu Bo Ma Shiying shang Yaohao Li Ruihan Wang Zhongping Tan State Key Laboratory of Bioactive Substance and Function of Natural Medicines Institute of Materia MedicaChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100050China Center of Pharmaceutical Technology School of Pharmaceutical SciencesTsinghua UniversityBeijing 100084China Chemical Engineering College Hebei Normal University of Science and TechnologyQinhuangdao 066600China

This study presents an unexpected finding that the cis isomer of β-thio-Asp exhibits higher ligation ac-tivity than the trans *** discovery sheds light on the intricate nature of native chemical ligation and highligh... 详细信息

关键词： Native chemical ligation Stereochemistry Ligation activity β-Thio-Asp Intramolecular hydrogen bond

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Integrative analysis of the transcriptome and metabolome reveals the importance of hepatokine FGF21 in liver aging

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Genes & Diseases 2024年第5期11卷 407-427页

作者： Wenchao Wang Junjie Qian Mingge shang Yiting Qiao Jiacheng Huang Xinxin Gao zhou Ye Xinyu Tong Kangdi Xu Xiang Li Zhengtao Liu Lin zhou Shusen Zheng Division of Hepatobiliary and Pancreatic Surgery Department of SurgeryFirst Affiliated HospitalSchool of MedicineZhejiang UniversityHangzhouZhejiang 310003China NHC Key Laboratory of Combined Multi-organ Transplantation HangzhouZhejiang 310003China Key Laboratory of the Diagnosis and Treatment of Organ Transplantation Research Unit of Collaborative Diagnosis and Treatment for Hepatobiliary and Pancreatic CancerChinese Academy of Medical Sciences(2019RU019)HangzhouZhejiang 310003China Key Laboratory of Organ Transplantation Research Center for Diagnosis and Treatment of Hepatobiliary DiseasesHangzhouZhejiang 310003China Shulan International Medical College Zhejiang Shuren UniversityHangzhouZhejiang 310015China Shulan(Hangzhou)Hospital Affiliated to Zhejiang Shuren University Shulan International Medical College HangzhouZhejiang 310000China

Aging is a contributor to liver ***,the concept of liver aging has become prominent and has attracted considerable interest,but its underlying mechanism remains poorly *** our study,the internal mechanism of liver aging was explored via multi-omics analysis and molecular experiments to support future targeted *** aged rat liver model was established with D-galactose,and two other senescent hepatocyte models were established by treating HepG2 cells with D-galactose and *** then performed transcriptomic and metabolomic assays of the aged liver model and transcriptome analyses of the senescent hepatocyte *** livers,genes related to peroxisomes,fatty acid elongation,and fatty acid degradation exhibited down-regulated expression with aging,and the hepatokine Fgf21 expression was positively correlated with the down-regulation of these *** senescent hepatocytes,similar to the results found in aged livers,FGF21 expression was also ***,the expressions of cell cycle-related genes were significantly down-regulated,and the down-regulated gene E2F8 was the key cell cycle-regulating transcription *** then validated that FGF21 overexpression can protect against liver aging and that FGF21 can attenuate the declines in the antioxidant and regenerative capacities in the aging *** successfully validated the results from cellular and animal experiments using human liver and blood *** study indicated that FGF21 is an important target for inhibiting liver aging and suggested that pharmacological prevention of the reduction in FGF21 expression due to aging may be used to treat liver aging-related diseases.

关键词： Antioxidant capability FGF21 Liver aging Liver regeneration Multiomics analysis

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Hemispherical resonator with low subsurface damage machined by small ball-end fine diamond grinding wheel:A novel grinding technique

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Chinese Journal of Aeronautics 2024年第5期37卷 570-585页

作者： Biao QIN Henan LIU Jian cheng Jinchuan TIAN Jiangang SUN Zihan zhou Chuanzhen MA Mingjun CHEN State Key Laboratory of Robotics and System Harbin Institute of TechnologyHarbin 150001China Center for Precision Engineering Harbin Institute of TechnologyHarbin 150001China

As for the ultra-precision grinding of the hemispherical fused silica resonator,due to the hard and brittle nature of fused silica,subsurface damage(SSD)is easily generated,which enormously influences the performance of such ***,ultra-precision grinding experiments are carried out to investigate the surface/subsurface quality of the hemispherical resonator machined by the small ball-end fine diamond grinding *** influence of grinding parameters on the surface roughness(SR)and SSD depth of fused silica samples is then *** experimental results indicate that the SR and SSD depth decreased with the increase of grinding speed and the decrease of feed rate and grinding *** addition,based on the material strain rate and the maximum undeformed chip thickness,the effect of grinding parameters on the subsurface damage mechanism of fused silica samples is ***,a multi-step ultra-precision grinding technique of the hemispherical resonator is proposed based on the interaction influence between grinding depth and feed ***,the hemispherical resonator is processed by the proposed grinding technique,and the SR is improved from 454.328 nm to 110.449 nm while the SSD depth is reduced by 94%from 40μm to 2.379μ*** multi-step grinding technique proposed in this paper can guide the fabrication of the hemispherical resonator.

关键词： Fused silica Ultra-precision grinding Hemispherical resonator Subsurface damage Grinding technique

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Study on hydrodynamic diffusion law of the swelling particle slurry in karst pipeline

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Particuology 2024年第4期87卷 218-231页

作者： Bingchuan cheng Haibo Li Guangming Pan Runhuai Deng Yu'an Gong Shujun Xu Kun zhou Zhuo Zheng School of Civil Engineering Geotechnical and Structural Engineering Research CenterShandong UniversityJinan250061China The Fourth Prospecting of Shandong Coal Geology Bureau Weifang261000China China Railway 14th Bureau Group Corporation Limited Jinan250101China School of Trafic Engineering Shandong Jianzhu University.Fengming RoadLingang Development ZoneJinan250101China

The swelling particle grouting material has demonstrated remarkable plugging effectiveness in high-pressure and large-flow burst water within karst ***,current research on the rheolog-ical model,flow computation theory,and plugging mechanism of this material is *** conven-tional grouting slurry diffusion process,using the liquid-liquid two-phase flow method,fails to accurately simulate high solubility slurry and particle *** address these limitations,this study established a precise constitutive model to describe the swelling particle slurry diffusion process in dynamic ***,a coupling calculation method was proposed to analyze the spatiotemporal heterogeneity of viscosity during slurry diffusion by considering the migration of slurry and the changes in *** investigate the interaction between particle swelling and flow field changes,a Compu-tational Fluid Dynamics-Discrete Element Method(CFD-DEM)coupling model was developed for the diffusion of swelling particle *** is demonstrated that slurry viscosity increases exponentially within the diffusion front as the particle swelling rate rises,and the drag force exhibits an intriguing behavior of initially increasing and then decreasing as the slurry flows through the ***-more,the CFD-DEM coupling model proved to be more accurate in describing viscosity distribution and diffusion distance compared to the finite element *** primary objective of this paper is to reveal the plugging mechanism and provide theoretical support for the engineering application of the swelling particle grouting material.

关键词： Karst pipeline Swelling particle grouting material Dynamic water diffusion Spatiotemporal variation of viscosity CFD-DEM coupling model

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Progress in the preparation and physical properties of two-dimensional Cr-based chalcogenide materials and heterojunctions

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Frontiers of physics 2024年第2期19卷 105-130页

作者： Xiulian Fan Ruifeng Xin Li Li Bo Zhang cheng Li Xilong zhou Huanzhi Chen Hongyan Zhang Fangping OuYang Yu zhou School of Physics and Electronics Hunan Key Laboratory of Nanophotonics and DevicesCentral South UniversityChangsha 410083China Jincheng Research Institute of Opto-mechatronics Industry Jincheng 048000China Shanxi Key Laboratory of Advanced Semiconductor Optoelectronic Devices and Integrated Systems Jincheng 048000China School of Physical Science and Technology Xinjiang UniversityUrumqi 830046China State Key Laboratory of Powder Metallurgy Central South UniversityChangsha 410083China

Two-dimensional transition metal dichalcogenides(TMDs)exhibit promising application prospects in the domains of electronic devices,optoelectronic devices and spintronic devices due to their distinctive energy band structures and spin−orbit coupling ***-based chalcogenides with narrow or even zero bandgap,covering from semiconductors to metallic materials,have considerable potential for wide-band photodetection and two-dimensional ***,the preparation of 2D CrX_(n)(X=S,Se,Te)nanosheets primarily relies on chemical vapor deposition(CVD)and molecule beam epitaxy(MBE),which enable the production of high-quality large-area *** review article focuses on recent progress of 2D Cr-based chalcogenides,including unique crystal structure of the CrX_(n)system,phase-controlled synthesis,and heterojunction ***,a detailed introduction of room-temperature ferromagnetism and electrical/optoelectronic properties of 2D CrXn is ***,this paper summarizes the challenges associated with utilizing 2D Cr-based chalcogenides in preparation strategies,optoelectronics devices,and spintronic devices while providing further insights.

关键词： physical properties two-dimensional materials Cr-based chalcogenide controlled synthesis heterojunction eletronic and optoelectronic devices

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Effect of phosphorus content on interfacial heat transfer and film deposition behavior during the high-temperature simulation of strip casting

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International Journal of Minerals,Metallurgy and Materials 2024年第5期31卷 1016-1025页

作者： Wanlin Wang cheng Lu Liang Hao Jie Zeng Lejun zhou Xinyuan Liu Xia Li Chenyang Zhu School of Metallurgy and Environment Central South UniversityChangsha 410083China National Center for International Research of Clean Metallurgy Central South UniversityChangsha 410083China Institute of Research of Iron and Steel ShasteelJiangsu ProvinceZhangjiagang 215625China

The interfacial wettability and heat transfer behavior are crucial in the strip casting of high phosphorus-containing steel.A hightemperature simulation of strip casting was conducted using the droplet solidification technique with the aims to reveal the effects of phosphorus content on interfacial wettability,deposited film,and interfacial heat transfer *** showed that when the phosphorus content increased from 0.014wt%to 0.406wt%,the mushy zone enlarged,the complete solidification temperature delayed from1518.3 to 1459.4℃,the final contact angle decreased from 118.4°to 102.8°,indicating improved interfacial contact,and the maximum heat flux increased from 6.9 to 9.2 MW/*** the phosphorus content from 0.081wt%to 0.406wt%also accelerated the film deposition rate from 1.57 to 1.73μm per test,resulting in a thickened naturally deposited film with increased thermal resistance that advanced the transition point of heat transfer from the fifth experiment to the third experiment.

关键词： strip casting interfacial heat transfer interfacial wettability naturally deposited film phosphorus content

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Theoretical analysis of the elastic Kelvin-Helmholtz instability in explosive weldings

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Defence Technology（防务技术） 2024年第2期32卷 521-528页

作者： Yuanbo Sun Jianning Gou cheng Wang Qiang zhou Rui Liu Pengwan Chen Tonghui Yang Xiang Zhao State Key Laboratory of Explosion Science and Technology Beijing Institute of TechnologyBeijing100081China Beijing HIWING Scientific and Technological Information Institute Beijing100084China School of Aerospace Engineering Tsinghua UniversityBeijing100084China

By considering the joint effects of the Kelvin-Helmholtz(KH) and Rayleigh-Taylor(RT) instabilities, this paper presents an interpretation of the wavy patterns that occur in explosive welding. It is assumed that the elasticity of the material at the interface effectively determines the wavelength, because explosive welding is basically a solid-state welding process. To this end, an analytical model of elastic hydrodynamic instabilities is proposed, and the most unstable mode is selected in the solid phase. Similar approaches have been widely used to study the interfacial behavior of solid metals in high-energy-density physics. By comparing the experimental and theoretical results, it is concluded that thermal softening,which significantly reduces the shear modulus, is necessary and sufficient for successful welding. The thermal softening is verified by theoretical analysis of the increase in temperature due to the impacting and sliding of the flyer and base plates, and some experimental observations are qualitatively *** summary, the combined effect of the KH and RT instabilities in solids determines the wavy morphology, and our theoretical results are in good qualitative agreement with experimental and numerical observations.

关键词： Explosive welding Hydrodynamic instabilities Elasticity

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Covalently bonded ternary photocatalyst comprising MoSe_(2)/black phosphorus nanosheet/graphitic carbon nitride for efficient moxifloxacin degradation

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Chinese Chemical Letters 2024年第9期35卷 356-359页

作者： Yuhao Ma Yufei zhou Mingchuan Yu cheng Fang Shaoxia Yang Junfeng Niu College of Environmental Science and Engineering North China Electric Power UniversityBeijing 102206China College of Water Conservancy and Hydropower Engineering North China Electric Power UniversityBeijing 102206China Global Centre for Environmental Remediation(GCER) University of NewcastleCallaghanNSW 2308Australia

Covalently bonded bridging between different semiconductors is a remarkable approach to improve the transfer of charge carriers at *** this study,we designed a ternary heterojunction(MBG)combining of molybdenum diselenide(Mo Se_(2)),black phosphorus nanosheets(Bpn)and graphitic carbon nitride(GCN).Among this MBG of Mo Se_(2)/Bpn/GCN,(i)the covalently bonded bridging effect between Bpn/GCN facilitates directional charge carrier transfer,meanwhile(ii)a Z-scheme heterojunction is formed between Mo Se_(2)/GCN to enhance the separation of photogenerated ***,(iii)this composite exhibits an increased absorption for visible *** this MBG,photocatalytic degradation of over 98%of moxifloxacin is achieved within 20 min,with O_(2)·-confirmed as the primary photocatalytic active *** findings provide novel insights into the construction of efficient heterojunction by covalently bonded bridging.

关键词： Ternary heterojunction Black phosphorus nanosheets Covalent bond Photocatalytic degradation Graphitic carbon nitride

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A long-term histological research on human frontalis muscle flap specimens from recurrent blepharoptosis patients

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International Journal of Ophthalmology(English edition) 2024年第6期17卷 1161-1163页

作者： Lu zhou Yu-cheng Yan Jin-Cai Fan Department of Plastic and Reconstructive Surgery Plastic Surgery HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100144China

Dear Editor,We present two patients with recurrent severe blepharoptosis after frontalis muscle(FM)flap *** we describe long-term histological changes of the FM flaps observed in revision *** flap suspension is widely applied in treating severe ptosis with poor levator function(<4 mm),and its effect is relatively stable and lasting[1].FM flap suspension is reliable and recurrent cases are observed only *** longterm research about FM flap is rare,we investigated tissue samples of revision surgery flaps which could reflect trends of morphological changes within the functioning FM flaps to some extent.

关键词： patients histological surgery

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