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Relationship between seismic structures and the diverse rupture processes of the 2.2. Türkiye earthquake doublet

Science China Earth Sciences 2024年第9期67卷 2810-2823页

作者： zhi WANG Yi FU Shunping PEI CAS Key Laboratory of Ocean and Marginal Sea Geology South China Sea Institute of OceanologyChinese Academy of SciencesGuangzhou 510301China Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou) Guangzhou 511458China Key Laboratory of Tibetan Plateau Earth System Environment and Resources(TPESER)Institute of Tibetan Plateau ResearchChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China

Recent geodetic and seismological observations of two major earthquakes in southeastern Türkiye in February 2.2. have revealed complex rupture initiation,propagation,and segmentation along the East Anatolian Fault Zone(EAFZ)and surrounding ***,the role of upper crust structures along the EAFZ in determining the diverse rupture processes of this earthquake doublet remains *** further investigate this,we employed double-difference location and seismic tomography techniques to determine high-resolution seismic velocities(V_(P),V_(S))and Poisson’s ratio(σ)structures using a multiparameter joint tomographic *** dataset includes 100,833 high-quality source-receiver travel-time pairs of P-and *** find that the unique rupture processes of this earthquake doublet were primarily influenced by contrasting crustal seismic structures and localized geological *** M_(w)7.8 mainshock was initiated within a transitional edge zone characterized by a rigid part(asperity)of the seismogenic zone with sharp contrast variations in rock strength ranging from low to high along the *** comparison,the M_(w)7.6 rupture originated in a ductile belt featuring fluid saturation with low-VP,low-VS,and high-σvalues that extended parallel to the Cardak *** pronounced contrast structures observed along the former rupture can be attributed to the oblique collision system between the weakened section of the east Anatolian plateau and the brittle Arabian platform,while the latter rupture was initiated within the ductile structure associated with fluid intrusion caused by the northward subduction of the Cyprus slab and subsequent ***,the occurrence of the first earthquake(E1)serves to alleviate shear stress on the second earthquake(E2.fault,potentially impeding the initiation of an E2.*** the contrary,this event also significantly reduces the normal stress acting on the E2.fault due to a double left-lateral strike-slip system

关键词： 2.2. Turkiye earthquake doublet Joint seismic tomography Tomographic transition edge Seismic rupture process Strong fault coupling

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MOF glass foam: a blueprint to porous membrane scaling-up

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Science China Chemistry 2024年第3期67卷 746-748页

作者： Yuan peng Weishen Yang State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesBeijing 100049China University of Chinese Academy of Sciences Beijing 100049China

In comparison with conventional energy-intensive separation technologies, such as distillation and crystallization,membrane separation is labelled as an advanced technology with low energy consumption, a small carbon footprint,continuous operation, etc. Metal-organic frameworks(MOFs) are a burgeoning category of crystalline materials consisting of metal ions/clusters coordinated with organic ligands.

关键词： separation porous distillation

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B_(c) meson and its scalar cousin with QCD sum rules

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Chinese Physics C 2024年第10期48卷 48-58页

作者： zhi-Gang Wang Department of Physics North China Electric Power UniversityBaoding 071003China

In this study,we use the optical theorem to calculate the next-to-leading order corrections to the QCD spectral densities directly in the QCD sum rules for the pseudoscalar and scalar B_(c) *** use experimental data for guidance to perform an updated *** obtain the masses and,in particular,decay constants,which are the fundamental input parameters in high energy ***,we obtain the pure leptonic decay widths,which can be compared with experimental data in the future.

关键词： next-to-leading order contributions QCD sum rules

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Contrasting physical mechanisms of yellowfin tuna fluctuations between the western and eastern Indian Ocean

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Journal of Oceanology and Limnology 2024年第3期42卷 960-971页

作者： peng LIAN Le GAO Key Laboratory of Ocean Observation and Forecasting and Key Laboratory of Ocean Circulation and Waves Institute of OceanologyChinese Academy of SciencesQingdao 266071China University of Chinese Academy of Sciences Beijing 100049China Laboratory for Ocean Dynamics and Climate Laoshan LaboratoryQingdao 266061China

As an economically critical pelagic migratory species,yellowfin tuna(Thunnus albacores,YFT)is very sensible to physical and environmental conditions,such as sea surface temperature(SST),ocean heat content(OHC),and the mixed layer depth(MLD).We investigated the impact of SST,OHC,and MLD on fluctuations of YFT catch in the western/eastern Indian Ocean using the long time series of 63-year environmental and YFT *** found that the impact of SST on YFT was heavily overestimated in the past,and MLD plays a more critical role in the YFT catch *** the MLD deepens(>34.8 m),SST was more influential in predicting the catches of YFT than OHC in the western Indian Ocean,and OHC was more critical to YFT than SST in the eastern Indian ***,when the MLD shallows(2.00,there was an asynchronous pattern of YFT CPUE induced by higher frequency variations and ocean hiatus of SST/OHC signals in the western and eastern Indian Oceans *** impact of the subsurface hiatus may induce the decrease of YFT in the eastern Indian *** above findings clarified a non-stationary relationship between the environmental factors and catches of YFT and provided new insights into variations in YFT abundance.

关键词： yellowfin tuna Indian Ocean sea surface temperature(SST) ocean heat content(OHC) mixed layer depth(MLD) hiatus

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Stabilization and Blow-up in an Infinite Memory Wave Equation with Logarithmic Nonlinearity and Acoustic Boundary Conditions

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Journal of Systems Science & Complexity 2024年第4期37卷 1368-1391页

作者： peng Qingqing ZHANG zhifei School of Mathematics and Statistics Huazhong University of Science and TechnologyWuhan 430074China Hubei Key Laboratory of Engineering Modeling and Scientific Computing Huazhong University of Science and TechnologyWuhan 430074China

In this paper,the authors consider the stabilization and blow up of the wave equation with infinite memory,logarithmic nonlinearity and acoustic boundary *** authors discuss the existence of global solutions for the initial energy less than the depth of the potential well and investigate the energy decay estimates by introducing a Lyapunov ***,the authors establish the finite time blow up results of solutions and give the blow up time with upper bounded initial energy.

关键词： Acoustic boundary condition finite time blow-up general decay infinite memory logarithmic nonlinearity

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Oscillatory solutions in a 3D predation system with time delay and age structure

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International Journal of Biomathematics 2024年第5期17卷 133-175页

作者： peng Yang College of Mathematics and Statistics Northwest Normal University Lanzhou Gansu 730070P.R.China

This paper is concerned with the sustained periodic oscillation phenomenon in a threespecies delayed predation system with Holling type II functional response and age structure in top *** top predator fertility function is regarded as a piecewise continuous smooth function with regard to their maturation period *** complicated dynamic behavior is proved by integrated semigroup theory and Hopf bifurcation theorem for semilinear equations with non-dense *** qualitative analysis and bifurcation study of the system,we yield that this system has a nontrivial periodic solution that bifurcates from the positive equilibrium age distribution when bifurcation parameter T passes through some critical *** simulations are also provided to illustrate theoretically analytical results.

关键词： Periodic oscillations 3D predation system time delay age structure integrated semigroup

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Immune states:integrated views of immunity by combining traditional Chinese medicine and modern medicine

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Science China(Life Sciences) 2024年第10期67卷 2271-2273页

作者： Anlong Xu Yuxing zhi School of Life Sciences and Qi-Huang School of Chinese Medicine Beijing University of Chinese MedicineBeijing 100029China School of Life Sciences Sun Yat-sen UniversityGuangzhou 510275China

Human immune system is an extraordinarily complex physiological system composed of multiple anatomical systems,diverse tissues and molecules from macroscopic to microscopic *** cells and molecules collectively partici... 详细信息

关键词： immunity homeostasis Immune

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Development of a MWDC prototype of the CSR external-target experiment

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NUCLEAR SCIENCE AND TECHNIQUES 2024年第10期35卷 1-14页

作者： He, Zhou-Bo Qin, zhi Ma, peng Yang, He-Run Wei, Xiang-Lun Lu, Chen-Gui Wen, Xiang-Jie Zhang, Xiu-Ling Chen, Tao Li, zhi-Jie Yang, Yuan-Sheng Zhan, Mei-Qiang Liu, Can-Wen Li, Meng Qiu, Tian-Li Gong, Yi-Wei Huang, Xin-Jie Yin, Xiao-Hao He, zhi-Xuan Zhang, Jun-Wei Zou, Hai-Chuan Fu, Sheng-Wei Guo, Dong Yan, Jun-Wei Cao, Zhe Deng, zhi Kong, Jie Xiao, zhi-Gang Hu, Rong-Jiang Duan, Li-Min Chinese Acad Sci Inst Modern Phys Lanzhou 730000 Peoples R China Univ Chinese Acad Sci Sch Nucl Sci & Technol Beijing 100049 Peoples R China Tsinghua Univ Dept Phys Beijing 100084 Peoples R China Univ Sci & Technol China Hefei 230026 Peoples R China Sichuan Univ Inst Nucl Sci & Technol Key Lab Radiat Phys & Technol Minist Educ Chengdu 610064 Peoples R China Lanzhou Univ Sch Nucl Sci & Technol Lanzhou 730000 Peoples R China North China Univ Water Resources & Elect Power Zhengzhou 450000 Peoples R China

The cooling storage ring (CSR) external-target experiment (CEE) is a spectrometer used in construction to study the properties of nuclear matter in high-baryon density regions at the Heavy-Ion Research Facility in Lanzhou (HIRFL). This study presents the design, simulation, manufacturing, and testing of a half-size prototype of a multi-wire drift chamber (MWDC) for the CEE. First, the performance of the MWDC connected to homemade electronics was simulated. The results demonstrated that an energy resolution of 18.5% % for 5.9-keV X-rays and a position resolution of 194 mu m for protons can be achieved by the current design. Because the size of the largest MWDC reached 176 cm x 314 cm, a set of 98 cm x 98 cm prototypes was built using the new techniques. The positioning accuracy of the anode wires in this prototype is better than 2. mu m. After optimization, using commercially available electronics, the prototype can achieved an energy resolution of 19.7% % for a Fe-55 X-ray source. The CEE-MWDC detector and electronics were simultaneously tested. An energy resolution of 2.% % was achieved for the Fe-55 source; the track residuals were approximately 330 mu m for the cosmic rays. The results demonstrate that the current design and techniques meet the requirements of the CEE-MWDC array.

关键词： CEE MWDC Garfield plus plus Fe-55 source Position resolution DRIFT CHAMBER HIRFL-CSR

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Research progress on micro-force measurement of a hydrate particle system

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Petroleum Science 2024年第4期21卷 2169-2183页

作者： Qiang Luo Wei Li zhi-Hui Liu Feng Wang zhi-Chao Liu Fu-Long Ning Faculty of Engineering China University of Geosciences (Wuhan) Suzhou Laboratory

It remains a great challenge to understand the hydrates involved in phenomena in practical oil and gas systems. The adhesion forces between hydrate particles, between hydrate particles and pipe walls, and between hydrate particles and reservoir particles are essential factors that control the behaviors of clathrate hydrates in different applications. In this review, we summarize the typical micro-force measurement apparatus and methods utilized to study hydrate particle systems. In addition, the adhesion test results, the related understandings, and the applied numerical calculation models are systematically discussed.

关键词： Clathrate hydrates Hydrate particle Micro-force measurements Adhesion Interactions

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A rechargeable Ca/Cl_(2. battery

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Science China Chemistry 2024年第9期67卷 2794-2795页

作者： Shixun Wang Chunyi zhi Department of Materials Science and Engineering City University of Hong KongHong Kong S.A.R.999077China Hong Kong Center for Cerebro-Cardiovascular Health Engineering(COCHE) ShatinNTHong Kong S.A.R.999077China

Multivalent metal-ion batteries have attracted wide attention with the expectation of tackling the needs of large-scale electrochemical energy storage[1].Among them,rechargeable calcium(Ca)-ion batteries are known as a promising alternative to conventional lithium(Li)-ion batteries due to the high abundance of calcium(the fifth most abundant element in the earth’s crust)and its large theoretical capacity(2.073 m Ah cm^(-3))and potential(-2.87 V *** hydrogen electrode,SHE)comparable to that of Li(-3.04 V ***).Furthermore,unlike monovalent cations,the divalent calcium cations favor a two-electron transfer to increase the specific energies[2..

关键词： valent lithium expectation

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