检索结果-南通市图书馆

Real-time monitoring of oxygenation in deep brain tissue using a wireless photoelectric probe

在线全文

学校读者我要写书评

暂无评论

Science China Materials 2024年第4期67卷 1361-1362页

作者： Hao Pang Qilin hua Guozhen {1. School of Integrated Circuits and Electronics Beijing Institute of TechnologyBeijing 100084China Institute of Flexible Electronics Beijing Institute of TechnologyBeijing 102488China

Oxygen(O2) supply to the brain is of utmost importance for human health, as cerebral hypoxia can result in irreversible brain damage. Neurodegenerative diseases, such as epilepsy, are closely associated with cerebral hypoxia [1.2]. Real-time monitoring of cerebral oxygenation holds significant value in neuroscience research and clinical diagnostics [3–1.].

关键词： epilepsy cerebral diseases

Tianmouc vision chip designed for open-world sensing

在线全文

学校读者我要写书评

暂无评论

Science China Materials 2024年第9期67卷 3046-3048页

作者： Haotian Li Qilin hua Guozhen {1. School of Integrated Circuits and Electronics Beijing Institute of TechnologyBeijing100081China Institute of Flexible Electronics Beijing Institute of TechnologyBeijing102488China

Driven by the forward development of highly interactive applications like autonomous robots and artificial intelligence[1.2],image sensors are continuously demanded to improve in terms of high speed,high resolution,wide dynamic range,and high precision[3].However,due to inherent limitations in power and bandwidth,significant enhancements in one aspect often necessitates compromises in others[4].

关键词： artificial interactive autonomous

Flexible ultrasound arrays with embossed polymer structures for medical imaging

在线全文

学校读者我要写书评

暂无评论

Journal of Semiconductors 2024年第8期45卷 1-3页

作者： Zhongming Chen Qilin hua Guozhen {1. School of Integrated Circuits and Electronics Beijing Institute of TechnologyBeijing 100081China Institute of Flexible Electronics Beijing Institute of TechnologyBeijing 102488China

In recent years,the application of flexible electronic technology[1.3]combined with ultrasonic imaging[4]has blossomed,resulting in a shift in the application place of ultrasonic imaging technology from medical institutions to *** utilization of this application has expanded from the physician’s positioning and guidance to real-time patient monitoring[5],while the range of application scenarios continues to *** transformative changes have made possible through the development of flexible transducer arrays[6,7].*** Xu's team at the University of California San Diego has pioneered the development of various flexible transducer arrays based on island-bridge structures[8]and serpentine electrodes[9].These transducer arrays incorporate rigid 1.3 composite piezoelectric transducers on an island,featuring thin electrodes between the islands to provide mechanical flexibility,metallic electrodes of serpentine structure to provide stretchability of the device,and elastomer materials are used to encapsulate the overall structure,ensuring structural stability and impedance matching to the skin tissue[1.].These flexible transducer arrays have found extensive applications in human blood pressure detection[1.],cardiac imaging[1.],blood flow doppler imaging[1.],tissue modulus detection[1.],and tissue deep hemoglobin detection[1.].

关键词： island matching expanded

Weakly Approximate Diagonalization of Homomorphisms into Finite von Neumann Algebras

在线全文

学校读者我要写书评

暂无评论

Acta Mathematica Sinica,English Series 2024年第9期40卷 2187-2194页

作者： Wen hua QIAN Jun Hao {1. Wen Ming WU School of Mathematical Sciences Chongqing Normal UniversityChongqing 401331P.R.China Department of Mathematics and Statistics University of New HampshireDurhamNH 03824USA

Let A be a unital C^(∗)-algebra and B a unital C^(∗)-algebra with a faithful traceτ.Let n be a positive *** give the definition of weakly approximate diagonalization(with respect toτ)of a unital homomorphismφ:A→Mn(B).We give an equivalent characterization of McDuff Ⅱ_(1. *** show that,if A is a unital nuclear C^(∗)-algebra and B is a type Ⅱ_(1. factor with faithful traceτ,then every unital^(∗)-homomorphism φ:A→M_(n)(B)is weakly approximately *** B is a unital simple infinite dimensional separable nuclear C^(∗)-algebra,then any finitely many elements in Mn(B)can be simultaneously weakly approximately diagonalized while the elements in the diagonals can be required to be the same.

关键词： Weakly approximately diagonalizable McDuff factors nuclear hyperfinite

A dephosphorylation-dependentmolecular switch for FT repression mediates flowering in Arabidopsis

在线全文

学校读者我要写书评

暂无评论

Plant Communications 2024年第3期5卷 167-178页

作者： Yu Zhang Changmei hua Jian Xuan Kiang Lisha {1. Temasek Life Sciences Laboratory 1 Research LinkNational University of SingaporeSingapore 117604Singapore Department of Biological Sciences Faculty of ScienceNational University of SingaporeSingapore 117543Singapore

The reproductive success offlowering plants relies greatly on precise timing of thefloral transition,which isnely modulated by a complex network offloral *** a mainfloral integrator,FLOWERING LOCUS T(FT)is also an essential constituent of theflorigen that is transported from leaves to shoot apices to *** is specically transcribed in leaf vascular tissues,where its production is suppressed by manyflowering repressors,including the MYB transcription factor EARLY FLOWERING MYB PROTEIN(EFM).Here,we show that a plant CTD phosphatase,C-TERMINAL DOMAIN PHOSPHATASE-LIKE 2(CPL2),suppresses FT expression in leaf vascular tissues by modulating the binding activity of ***2 interacts with and dephosphorylates EFM to facilitate the binding of dephosphorylated EFM to FT chromatin,thereby *** results suggest that CPL2-mediated dephosphorylation of thefloral repressor EFM serves as a molecular switch,adding another layer of regulation tone-tune FT transcription and ensure thatflowering occurs at an appropriate time.

关键词： CTD phosphatase MYB protein florigen FT flowering Arabidopsis

Combined effects of sea urchin-like structure and mixed Cu^(+)/Cu^(0)states on promoting C_(2)formation in electrocatalytic CO_(2)reduction

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Frontiers of Chemical Science and Engineering 2024年第3期18卷 63-73页

作者： Mengqing Shan Dongsheng Lu Jiatong Dong shen Yan Jinyu Han hua Wang Collaborative Innovation Center of Chemical Science and Engineering Key Laboratory for Green Chemical Technology of the Ministry of EducationSchool of Chemical Engineering and TechnologyTianjin UniversityTianjin300354China

Surface engineering and Cu valence regulation are essential factors in improving the C_(2)selectivity during the electrochemical reduction of CO_(2).Herein,we present a sea urchin-like CuO/Cu_(2)O catalyst derived from rhombic dodecahedra Cu_(2)O through one-step oxidation/etching method where the mixed Cu^(+)/Cu^(0)states are formed via in situ reduction during *** combined effects of the morphology and the mixed Cu^(+)/Cu^(0)states on C–C coupling are evaluated by the Faradaic efficiency of C_(2)and the C_(2)/C1.ratio obtained in an H-cell.R-Cu^(O)/Cu_(2)O exhibited 49.5%Faradaic efficiency of C_(2)with a C_(2)/C1.ratio of 3.1.at−1.4 V *** hydrogen electrode,which are 1.5 and 3.2 times higher than those of R-Cu_(2)O,*** a flow-cell,68.0%Faradaic efficiency of C_(2)is achieved at a current density of 500 mA·cm^(−2).The formation of the mixed Cu^(+)/Cu^(0)states was confirmed by in situ Raman ***,the sea urchin-like structure provides more active sites and enables faster electron *** a result,the excellent C_(2)production on R-CuO/Cu_(2)O is primarily attributed to the synergistic effects of the sea urchin-like structure and the stable mixed Cu^(+)/Cu^(0)***,this work presents an integrated strategy for developing Cu-based electrocatalysts for C_(2)production through electrochemical CO_(2)reduction.

关键词： CO_(2)electrolysis sea urchin-like structure Cu^(+)/Cu^(0) C_(2)products

Ultra-efficient and parameter-free computation of submicron thermal transport with phonon Boltzmann transport equation

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Fundamental Research 2024年第4期4卷 907-915页

作者： Yue Hu Yongxing shen {1. Bao University of Michigan-Shanghai Jiao Tong University Joint Institute Shanghai Jiao Tong UniversityShanghai 200240China

Understanding thermal transport at the submicron scale is crucial for engineering applications,especially in the thermal management of electronics and tailoring the thermal conductivity of thermoelectric *** the submicron scale,the macroscopic heat diffusion equation is no longer valid and the phonon Boltzmann transport equation(BTE)becomes the governing equation for thermal ***,previous thermal simulations based on the phonon BTE have two main limitations:relying on empirical parameters and prohibitive computational ***,the phonon BTE is commonly used for qualitatively studying the non-Fourier thermal transport phenomena of toy *** this work,we demonstrate an ultra-efficient and parameter-free computational method of the phonon BTE to achieve quantitatively accurate thermal simulation for realistic materials and *** properly integrating the phonon properties from first-principles calculations,our method does not rely on empirical material properties *** can be generally applicable for different materials and the predicted results can match well with experimental ***,by developing a suitable ensemble of advanced numerical algorithms,our method exhibits superior numerical *** full-scale(from ballistic to diffusive)thermal simulation of a 3-dimensional fin field-effect transistor with 1. million degrees of freedom,which is prohibitive for existing phonon BTE solvers even on supercomputers,can now be completed within two hours on a single personal *** method makes it possible to achieve the predictive design of realistic nanostructures for the desired thermal *** also enables accurately resolving the temperature profiles at the transistor level,which helps in better understanding the self-heating effect of electronics.

关键词： Submicron thermal transport Boltzmann transport equation Deterministic numerical method Phonon transport Transistors Nanostructured materials

New interaction solutions of the(2+1.-dimensional Nizhnik–Novikov–Veselov-type system and fusion phenomena

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Communications in Theoretical Physics 2024年第10期76卷 9-13页

作者： Guo-hua Wang Ji Lin Shou-Feng {1. School of Information Engineering Taizhou Vocational College of Science & Technology Department of Physics Zhejiang Normal University Department of Applied Mathematics Zhejiang University of Technology

By means of the multilinear variable separation（MLVS） approach, new interaction solutions with low-dimensional arbitrary functions of the（2+1.-dimensional Nizhnik–Novikov–Veselovtype system are constructed. Four-dromion structure, ring-parabolic soliton structure and corresponding fusion phenomena for the physical quantity U =λ（lnf）xyare revealed for the first time. This MLVS approach can also be used to deal with the（2+1.-dimensional Sasa–Satsuma system.

关键词： fusion interaction solution multilinear variable separation NNV-type system

Evolution and Application of Sealing Ability of Gypsum Caprocks under Temperature-Pressure Coupling:An Example of the ZS5 Well in the Tazhong Area of the Tarim Basin

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Acta Geologica Sinica(English Edition) 2024年第1期98卷 168-184页

作者： LIU hua ZHAO Shan YANG Xianzhang ZHU Yongfeng WANG {1. ZHANG Ke National Key Laboratory of Deep Oil and Gas China University of Petroleum(East China)QingdaoShandong 266580China School of Geosciences China University of Petroleum(East China)QingdaoShandong 266580China Laboratory for Marine Mineral Resources National Laboratory for Marine Science and TechnologyQingdaoShandong 266071China PetroChina Tarim Oil Field Company KorlaXinjiang 841001China

Gypsum caprocks'sealing ability is affected by temperature-pressure *** to the limitations of experimental conditions,there is still a lack of triaxial stress-strain experiments that simultaneously consider changes in temperature and pressure conditions,which limits the accuracy of the comprehensive evaluation of the brittle plastic evolution and sealing ability of gypsum rocks using temperature pressure *** stress-strain tests were utilized to investigate the differences in the evolution of the confinement capacity of gypsum rocks under coupled temperaturepressure action and isothermal-variable pressure action on the basis of sample feasibility *** to research,the gypsum rock's peak and residual strengths decrease under simultaneous increases in temperature and pressure over isothermal pressurization experimental conditions,and it becomes more *** reduces the amount of time it takes for the rock to transition from brittle to *** temperature is taken into account,both the brittle–plastic transformation's depth limit and the lithological transformation of gypsum rocks become shallower,and the evolution of gypsum rocks under variable temperature and pressure conditions is more complicated than that under isothermal *** sealing ability under the temperature-pressure coupling is more in line with the actual geological context when the application results of the Well#ZS5 are *** provides a theoretical basis for precisely determining the process of hydrocarbon accumulation and explains why the early hydrocarbon were not well preserved.

关键词： temperature-pressure coupling gypsum caprocks brittle-plastic evolution sealing capacity Tarim Basin