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江苏商论 2025年第1期 97-100页

作者：郑圣浙江农林大学经济管理学院浙江杭州311300

本文针对企业发展过程中存在的内部控制效率不高、企业会计信息质量低下等问题提出改善内部控制环境、建立健全风险评估机制、进一步完善内部控制活动、加强信息和沟通的通畅性、提高内外部监督等措施,从而提高企业会计信息质量,促进企... 详细信息

本文针对企业发展过程中存在的内部控制效率不高、企业会计信息质量低下等问题提出改善内部控制环境、建立健全风险评估机制、进一步完善内部控制活动、加强信息和沟通的通畅性、提高内外部监督等措施,从而提高企业会计信息质量,促进企业更好发展。

关键词：内部控制会计信息质量信息与沟通内部监督

Evaluation of the biodegradation product layer on Mg-1Zn alloy during dynamical strain

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Journal of Magnesium and Alloys 2021年第5期9卷 1842-1855页

作者： lianxi Chen Cheng Guo Carsten Blawert Junjie Yang Dongchu Chen Xiaojian Wang Zhentao Yu Mikhail L.Zheludkevich Wei Li School of Materials Science and Hydrogen Energy Foshan UniversityFoshanGuangdong 528000China Institute of Advanced Wear&Corrosion Resistant and Functional Materials Jinan UniversityGuangzhou 510632China Institute of Surface Science Helmholtz-Zentrum HereonGeesthacht 21502Germany College of Mechatronics and Control Engineering Shenzhen UniversityShenzhen 518060China

Magnesium(Mg)alloys are attractive biodegradable implant *** degradation products on Mg alloys play a critical role in the stability of the interface between implant and surrounding *** the present study,the effects of dynamic deformation on the interface layer of biomedical Mg-1Zn alloy were investigated using the constant extension rate tensile tests(CERT)coupled with electrochemical impedance spectroscopy(EIS).The deformation of the Mg-1Zn alloy had an adverse influence on the impedance of the surface degradation layer formed in simulated body fluid that only containing inorganic ***,the surface degradation layer with improved corrosion resistance was obtained for the strained samples tested in protein-containing simulated body *** spontaneous or enhanced adsorption of protein into the degradation product led to a flexible and stable hybrid anti-corrosive layer.A relationship between the dynamic deformation of Mg alloy and the impendence of the degradation layer was established,which demonstrates the necessity for in situ characterisation of the evolution of the surface layer under dynamic condition.

关键词： Degradation layer Protein Biodegradable Mg alloy Dynamic deformation Impedance

Understanding of performance degradation of LiNi0.80Co0.10Mn0.10O2 cathode material operating at high potentials

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Journal of Energy Chemistry 2020年第2期29卷 135-141页

作者： sheng SZhang Electrochemistry Branch FCDD-RLS-DCSensors and Electron Devices DirectorateU.S.Army Research LaboratoryAdelphiMD 20783-1138USA

Inferior cycling stability, poor safety, and gas generation are long lasting problems of Ni-rich Li Ni0.80 Co0.10 Mn0.10 O2(NCM811) cathode material. Although much effort has been made, mechanisms for the above problems are poorly understood. Studying the cycling and float-charging characteristics of Li/NCM811 cells in high voltage conditions(4.5 V and 4.7 V, respectively), in this work we find that nearly all known problems with NCM811 material can be attributed to the oxidation of lattice oxygen occurring in the capacity region corresponding to H2 → H3 phase transition. While contributing to overall capacity,the oxidation of lattice oxygen results in a loss of oxygen through oxygen evolution and relative reactions between active oxygen evolution intermediates and electrolyte solvents. It is the loss of oxygen that results in irreversible layered-spinel-rocksalt phase transition, secondary particle cracking, and performance degradation. The conclusions of this work suggest that the priority for further research on NCM811 material should give to the suppression of oxygen evolution, followed by the use of the anti-oxygen electrolyte being chemically stable against the active oxygen evolution intermediates.

关键词： Ni-rich cathode Lattice oxygen Phase transition Oxygen evolution Performance degradation

ON APPROXIMATION BY REPRODUCING KERNEL SPACES IN WEIGHTED L^p SPACES

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Journal of Systems Science & Complexity 2007年第4期20卷 623-638页

作者： Baohuai sheng Department of Mathematics Shaoxing College of Arts and Sciences Shaoxing 312000 China

In this paper, we investigate the order of approximation by reproducing kernel spaces on （-1, 1） in weighted L^p spaces. We first restate the translation network from the view of reproducing kernel spaces and then construct a sequence of approximating operators with the help of Jacobi orthogonal polynomials, with which we establish a kind of Jackson inequality to describe the error estimate. Finally, The results are used to discuss an approximation problem arising from learning theory.

关键词： Approximation reproducing kernel spaces weighted LW^p spaces.

Enhanced subacute ischemic stroke treatment via multistage drug delivery system design for combination therapy

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Science China Chemistry 2025年

作者： Xihan Xu Juan-Juan Li Jiamin Li Hui-Yan Zhang Yilin Qi Bing-Sen Shi Tianqi Li Shan-Shan Su Weitao Zhao Chang Chen Zhongying Gong Huiyu Liu Ke-Rang Wang Dong-sheng Guo Xue Xue State Key Laboratory of Medicinal Chemical Biology College of Pharmacy Nankai University College of Chemistry State Key Laboratory of Elemento-Organic Chemistry Key Laboratory of Functional Polymer Materials (Ministry of Education) Frontiers Science Center for New Organic Matter Collaborative Innovation Center of Chemical Science and EngineeringNankai University College of Chemistry and Materials Science State Key Laboratory of New Pharmaceutical Preparations and Excipients Key Laboratory of Medicinal Chemistry and Molecular Diagnosis (Ministry of Education) Key Laboratory of Chemical Biology of Hebei Province Hebei Research Center of the Basic Discipline of Synthetic Chemistry Hebei University Department of Neurology Tianjin First Central Hospital School of Medicine Nankai University Beijing Advanced Innovation Center for Soft Matter Science and Engineering State Key Laboratory of Organic-Inorganic Composites Beijing Laboratory of Biomedical Materials Bionanomaterials & Translational Engineering Laboratory Beijing Key Laboratory of BioprocessBeijing University of Chemical Technology

The management of acute ischemic stroke remains challenging due to its abrupt onset and the narrow treatment window,resulting in high rates of disability and *** therapy for neuroprotection and neurorepair strategies provided new hopes for subacute stroke *** we designed a multistage nanodelivery system that matches the unique microenvironment of the subacute phase of stroke,which utilizes calixarene as a building block to effectively load the neuroprotective drug *** calixarene is designed with glycosidic linkages targeting the glucose transporter 1 (GLUT1)on the blood-brain barrier (BBB) and azo bonds that are responsive to hypoxic ***,the decomposed calixarene molecules themselves possess intrinsic bio-activation to modulate inflammatory responses,achieving a multistage therapeutic approach that transitions from targeting to release and finally to *** approach combines anti-inflammation and neuroprotection,providing a multi-level treatment *** system was validated in a rat model of permanent middle cerebral artery occlusion (pMCAO),demonstrating that intravenous administration of the nanodelivery system repairs brain damage and improves motor function 24 h post-pMCAO *** work offers a precise and integrative strategy for stroke patients missing the acute therapy window to improve functional recovery and enhance the effect of comprehensive treatment.

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Low-energy atomic displacement model of SRIM simulations

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Nuclear Science and Techniques 2021年第11期32卷 15-24页

作者： sheng-Li Chen Sino-French Institute of Nuclear Engineering and Technology Sun Yat-Sen UniversityZhuhai 519082China

Radiation-induced atomic displacement damage is a pressing issue for *** present work investigates the number of atomic displacements using the Primary Knock-on Atom (PKA) energy E_(PKA)and threshold displacement energy E_(d)as two major parameters via lowenergy SRIM Binary Collision Approximation (BCA) full cascade *** is found that the number of atomic displacements cannot be uniquely determined by E_(PKA)/E_(d )or E_(D) /E_(d)(E_(D) refers to the damage energy) when the energy is comparable with E_(d).The effective energy E_(D,eff)proposed in the present work allows to describing the number of atomic displacements for most presently studied monatomic materials by the unique variable E_(D,eff)/E_(d).Nevertheless,it is noteworthy that the BCA simulation damage energy depends on E_(d),whereas the currently used analytical method is independent of E_(d).A more accurate analytical damage energy function should be determined by including the dependence on E_(d).

关键词： Atomic displacement Damage energy Effective energy SRIM neutron cascade simulations

Challenges in the management of visual and tactile hallucinations in elderly people

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World Journal of Psychiatry 2025年第1期15卷 185-188页

作者： Si-sheng Huang Division of Geriatric Psychiatry Department of PsychiatryChanghua Christian HospitalChanghua 500Taiwan Department of Post-Baccalaureate Medicine College of MedicineNational Chung Hsing UniversityTaichung 402Taiwan

This letter provides a concise review of the pertinent literature on visual and tactile hallucinations in elderly *** discussion addresses differential diagnoses and potential underlying mechanisms,as well as the psychopathology associated with tactile hallucinations,and emphasizes the necessity for invest-igation into the possibility of coexisting delusional infestation(parasitosis).These symptoms frequently manifest in patients with primary psychotic disorders,organic mental disorders,and substance use *** proposed pathophy-siological mechanisms may involve dopaminergic imbalances and dysfunction of the striatal dopamine transporter.

关键词： Delusional infestation Dementia Haptic hallucination Scratching behavior Tactile hallucination Visual hallucination Alzheimer’s disease

A high efficiency PWM CMOS class-D audio power amplifier

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Journal of Semiconductors 2009年第2期30卷 48-53页

作者：朱樟明刘帘曦杨银堂雷晗 Institute of Microelectronics Xidian University Xi'an Power-Rail Micro Co. Ltd

Based on the difference close-loop feedback technique and the difference pre-amp, a high efficiency PWM CMOS class-D audio power amplifier is proposed. A rail-to-rail PWM comparator with window function has been embedded in the class-D audio power amplifier. Design results based on the CSMC 0.5μm CMOS process show that the max efficiency is 90%, the PSRR is -75 dB, the power supply voltage range is 2.5-5.5 V, the THD＋N in 1 kHz input frequency is less than 0.20%, the quiescent current in no load is 2.8 mA, and the shutdown current is 0.5 pA, The active area of the class-D audio power amplifier is about 1.47 × 1.52 mm^2. With the good performance, the class-D audio power amplifier can be applied to several audio power systems.

关键词： class-D audio amplifier PWM CMOS high efficiency rail-to-rail comparator difference

Global Well-posedness for the 2D Micropolar Rayleigh–Bénard Convection Problem without Velocity Dissipation

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Acta Mathematica Sinica,English Series 2021年第7期37卷 1053-1065页

作者： sheng WANG Shanghai Center for Mathematical Sciences Fudan UniversityShanghai 200433P.R.China

In this article,we study the Cauchy problem to the micropolar Rayleigh–Bénard convection problem without velocity dissipation in two *** first prove the local well-posedness of a smooth solution,and then establish a blow up criterion in terms of the gradient of scalar temperature *** last,we obtain the global well-posedness to the system.

关键词： 2D micropolar Rayleigh–Bénard convection problem blow-up criterion smooth solution global well-posedness

Probabilistic direct counterfactual quantum communication

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Chinese Physics B 2017年第2期26卷 68-74页

作者： sheng Zhang Department of Electronic Technology China Maritime Police Academy Ningbo 315801 China

It is striking that the quantum Zeno effect can be used to launch a direct counterfactual communication between two spatially separated parties, Alice and Bob. So far, existing protocols of this type only provide a deterministic counterfactual communication service. However, this counterfactuality should be payed at a price. Firstly, the transmission time is much longer than a classical transmission costs. Secondly, the chained-cycle structure makes them more sensitive to channel noises. Here, we extend the idea of counterfactual communication, and present a probabilistic-counterfactual quantum communication protocol, which is proved to have advantages over the deterministic ones. Moreover, the presented protocol could evolve to a deterministic one solely by adjusting the parameters of the beam splitters.

关键词： quantum communication quantum cryptography optical implementation of quantum information processing