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Effective Diffusion Energy Barriers with the Boltzmann Distribution Assumption

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Journal of Wuhan University of Technology(Materials Science) 2019年第1期34卷 1-5页

作者： TU rui WANG zhu School of Physics and Technology Wuhan University

We derived revised effective diffusion energy barriers following the Boltzmann distribution assumption for impurity atoms in a bulk material under the impact of various kinds of point defects to reveal the insights of migration mechanisms. The effective diffusion energy barriers of copper impurities in bulk zirconium were calculated through the first principle method under the presented hypothesis. Our results(?E_(||) =1.27 eV, ?E_⊥=1.31 eV) agreed well with the experimental results(?E_(||) =1.54 eV, ?E_⊥=1.60 eV), which validated bulk diffusion as the major mechanism for copper diffusion in zirconium. The effective diffusion energy barriers could be used for estimating whether the defects will accelerate the diffusion or slow them down by acting as traps of the impurity atoms. On the other hand, the first principle results of the impurity diffusion via defects could be further used as inputs of larger scale computational simulations, such as MC(Monte Carlo) or Phase Field calculations.

关键词： boltzmann distribution diffusion energy barrier point defect first principle calculation NEB method

Ordered proposition fusion based on consistency and uncertainty measurements

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Science China(Information Sciences) 2017年第8期60卷 117-135页

作者： Dayou LIU Yungang zhu Ni NI jie LIU College of Computer Science and Technology Jilin University Key Laboratory of Symbolic Computation and Knowledge Engineering of Ministry of Education Jilin University Beijing Entry-Exit Inspection and Quarantine Bureau

The fusion of ordered propositions is an important and widespread problem in artificial intelligence,but existing fusion methods have difficulty handling the fusion of ordered propositions. In this paper, we propose a solution based on consistency and uncertainty measurements. The main contributions of this paper are as follows. First, we propose the concept of convexity degree, mean, and center of basic support function to comprehensively describe the basic support function of ordered propositions. Second, we introduce entropy as a measure of uncertainty in the basic support function of ordered propositions. Third, we generalize the indeterminacy of the basic support function and propose a novel method to measure the consistency between two basic support functions. Finally, based on the above researches, we propose a novel algorithm for fusing ordered propositions. Theoretical analysis and experimental results demonstrate that the proposed method outperforms state-of-the-art methods.

关键词： uncertainty processing ordered proposition evidence theory dempster rule of combination information fusion

Changes in freezing and thawing indices over the source region of the Yellow River from 1980 to 2014

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Journal of Forestry Research 2019年第1期30卷 257-268页

作者： rui Wang Qingke zhu Hao Ma School of Geography and Tourism Shaanxi Normal University School of Soil and Water Conservation Beijing Forestry University Northwest Institute of Forest Inventory and Planning and Design State Forestry Administration

Freezing and thawing indices are not only of great significance for permafrost research but also are important indicators of the effects of climate ***,to date,research on ground-surface freezing and thawing indices and their relationship with air indices is *** on daily air and ground-surface temperatures collected from 11 meteorological stations in the source region of the Yellow River,the freezing and thawing indices were calculated,and their spatial distribution and trends were *** air-freezing index(AFI),air-thawing index(ATI),ground surface-freezing index(GFI),ground surface-thawing index(GTI),air thawing-freezing index ratio(Na)and surface ground thawing-freezing index ratio(Ng)were 1554.64,1153.93,1.55,2484.85,850.57℃-days and 3.44,*** affected the spatial distribution of the freezing and thawing *** the altitude increased,the freezing indices gradually increased,and the thawing indices and thawing-freezing index ratio *** 1980 to 2014,the AFI and GFI decreased at rates of 8.61 and 11.06℃-days a^(-1),the ATI and GTI increased at 9.65 and 14.53℃-days a^(-1),and Na and Ng significantly increased at 0.21 and 0.79 decade^(-1).Changes in the freezing and thawing indices were associated with increases in the air and ground-surface *** rates of change of the ground surface freezing and thawing indices were faster than the air ones because the rate of increase of the groundsurface temperature was faster than that of the air and the difference between the ground surface and air *** change point of the time series of freezing and thawing indices occurred in 2000–*** 2000–2001,the AFI and GFI were lower than before the change point,and the changing trend was *** ATI,GTI,Na and Ng during 2001–2014 were higher,with faster rates than *** addition,the annual thawing indices composed a greater proportion of the mean annual air temperature and mean annual ground surfac

关键词： Climate change Freezing and thawing indices Permafrost The source region of the Yellow River

Bipartite and Tripartite Entanglement in a Three-Qubit Heisenberg Model

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Communications in Theoretical Physics 2006年第6X期46卷 969-974页

作者： REN jie zhu Shi-Qunt School of Physical Science and Technology Suzhou University Suzhou 215006 China

The bipartite and tripartite entanglement in a three-qubit Heisenberg XY model with a nonuniform magnetic field is studied. There are two or four peaks in the concurrence of the bipartite entanglement when the amplitudes of the magnetic fields are. differently distributed between the three qubits. It is very interesting to note that there is no tangle of tripartite entanglement between the three qubits when the amplitudes of the magnetic fieMs are varied. However, the variation of the magnetic field direction can induce the tangle. The tangle is periodic about the angle between the magnetic field and the z axis of the spin.

关键词： bipartite entanglement tripartite entanglement Heisenberg XY model

Longitudinal assessment of peripheral organ metabolism and the gut microbiota in an APP/PS1 transgenic mouse model of Alzheimer’s disease

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Neural Regeneration Research 2025年第10期20卷 2982-2997页

作者： Hongli Li Jianhua Huang Di Zhao Lemei zhu Zheyu Zhang Min Yi Weijun Peng Department of Integrated Traditional Chinese&Western Medicine The Second Xiangya HospitalCentral South UniversityChangshaHunan ProvinceChina National Clinical Research Center for Metabolic Diseases ChangshaHunan ProvinceChina Hunan Academy of Chinese Medicine ChangshaHunan ProvinceChina Academician Workstation Changsha Medical UniversityChangshaHunan ProvinceChina

Alzheimer’s disease not only affects the brain,but also induces metabolic dysfunction in peripheral organs and alters the gut *** aim of this study was to investigate systemic changes that occur in Alzheimer’s disease,in particular the association between changes in peripheral organ metabolism,changes in gut microbial composition,and Alzheimer’s disease *** do this,we analyzed peripheral organ metabolism and the gut microbiota in amyloid precursor protein-presenilin 1(APP/PS1)transgenic and control mice at 3,6,9,and 12 months of ***-month-old APP/PS1 mice exhibited cognitive impairment,Alzheimer’s disease-related brain changes,distinctive metabolic disturbances in peripheral organs and fecal samples(as detected by untargeted metabolomics sequencing),and substantial changes in gut microbial composition compared with younger APP/PS1 ***,a strong correlation emerged between the gut microbiota and kidney metabolism in APP/PS1 *** findings suggest that alterations in peripheral organ metabolism and the gut microbiota are closely related to Alzheimer’s disease development,indicating potential new directions for therapeutic strategies.

关键词： Alzheimer’s disease APP/PS1 mice brain-kidney axis gut microbiota heart-brain axis liver-brain axis lung-brain axis microbiota-gut-brain axis peripheral organ metabolism spleen-brain axis

An iterative approach to Bayes risk decoding and system combination

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Journal of Zhejiang University-Science C(Computers and Electronics) 2011年第3期12卷 204-212页

作者： Hai-hua XU jie zhu Department of Electronic Engineering Shanghai Jiao Tong University Shanghai 200240 China

We describe a novel approach to Bayes risk(BR) decoding for speech recognition,in which we attempt to find the hypothesis that minimizes an estimate of the BR with regard to the minimum word error(MWE) *** achieve this,we propose improved forward and backward algorithms on the lattices and the whole procedure is optimized *** remarkable characteristics of the proposed approach are that the optimization procedure is expectation-maximization(EM) like and the formation of the updated result is similar to that obtained with the confusion network(CN) decoding *** results indicated that the proposed method leads to an error reduction for both lattice rescoring and lattice-based system combinations,compared with CN decoding,confusion network combination(CNC),and ROVER methods.

关键词： Bayes risk(BR) Confusion network Speech recognition Lattice rescoring System combination

Dip2a regulates stress susceptibility in the basolateral amygdala

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Neural Regeneration Research 2025年第6期20卷 1735-1748页

作者： Jing Li Zixuan He Weitai Chai Meng Tian Huali Yu Xiaoxiao He Xiaojuan zhu Key Laboratory of Molecular Epigenetics Ministry of Education Institute of Genetics and CytologyNortheast Normal UniversityChangchunJilin ProvinceChina

Dysregulation of neurotransmitter metabolism in the central nervous system contributes to mood disorders such as depression, anxiety, and post–traumatic stress disorder. Monoamines and amino acids are important types of neurotransmitters. Our previous results have shown that disco-interacting protein 2 homolog A(Dip2a) knockout mice exhibit brain development disorders and abnormal amino acid metabolism in serum. This suggests that DIP2A is involved in the metabolism of amino acid–associated neurotransmitters. Therefore, we performed targeted neurotransmitter metabolomics analysis and found that Dip2a deficiency caused abnormal metabolism of tryptophan and thyroxine in the basolateral amygdala and medial prefrontal cortex. In addition, acute restraint stress induced a decrease in 5-hydroxytryptamine in the basolateral amygdala. Additionally, Dip2a was abundantly expressed in excitatory neurons of the basolateral amygdala, and deletion of Dip2a in these neurons resulted in hopelessness-like behavior in the tail suspension test. Altogether, these findings demonstrate that DIP2A in the basolateral amygdala may be involved in the regulation of stress susceptibility. This provides critical evidence implicating a role of DIP2A in affective disorders.

关键词： 5-hydroxytryptamine acute restraint stress basolateral amygdala CaMKII neurons DIP2A metabolomics neurotransmitters principal component analysis stress susceptibility tryptophan

Durability classification of red beds rocks in central Yunnan based on particle size distribution and slaking procedure

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Journal of Mountain Science 2019年第3期16卷 714-724页

作者： zhu Jun-jie DENG Hui State Key Laboratory of Geohazard Prevention and Geoenvironment Protection Chengdu University of Technology

Moisture induced disintegration of soft rock in Red Beds is common all over the world. The slake durability index test is most useful to quantify durability of the soft rocks. Based on a series of slaking test, this article aims to develop a durability classification involving particle size and slaking procedure. To describe the slaking procedure in detail,the Relative Slake Durability Index(Id_i) is proposed. The Id_i is the percentage ratio of the i^(th) weight of oven-dry retained portion to the(i-1)^(th) weight of ovendry retained portion. Results show that the Id_i of samples have a large difference in certain slaking procedure, whereas the traditional Durability Slake Index(Id) is almost constant. Considering this limitation of Id in durability classification, an advanced classification by applying the Id_i and disintegration ratio(DR) is further established in this article. Compared to the durability classification based on Slake Durability Index(Id), the new classification accounts for the particle size of the slaked material and the slaking procedure, so it provides a better measure of the degree of slaking. The classification recommended in this article divide the slake durability into three classes(i.e., low, medium and high class). Furthermore, it divides both the low class and the medium class into 3 subclasses.

关键词： Slaking test Durability classification Relative durability index Durability index Disintegrate rate

Visible-Light Photocatalytic Activity of TiO_(2) Nanorods and Its Application to Degrading Organic Pollutants

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China Petroleum Processing & Petrochemical Technology 2022年第2期24卷 138-146页

作者： He jie Shi Chaojie Yang Zhengchun Hou Qiang Zhang rui zhu Tianjia Pan Peng Zhang Ping School of Integrated Circuit Science and Engineering Advanced Materials and Printed Electronics CenterTianjin Key Laboratory of Film Electronic&Communication DevicesTianjin University of TechnologyTianjin 300384 Department of Chemical Industry SINOPEC Tianjin CompanyTianjin 300271 Department of Electronics Nankai UniversityTianjin 300350 School of Electrical and Information Engineering and Key Laboratory of Advanced Ceramics and Machining Technology of Ministry of Education Tianjin UniversityTianjin 300072

Fluorine-doped tin oxide(FTO)/TiO_(2) seed layer/TiO_(2) nanorods were prepared by ion-beam deposition and hydrothermal *** UV light,the photocurrent density of these nanorods was found to reach 1.39 mA/cm^(2),which was higher than that without the seed layer and nanorod ***,the FTO/TiO_(2) seed layer/TiO_(2) nanorods can also absorb visible light,overcoming a notable problem with standard TiO_(2).The photocurrent density of the FTO/TiO_(2) seed layer/TiO_(2) nanorods was found to reach 0.21 mA/cm^(2) under visible *** high-performance results from the deposition of the TiO_(2) seed layer,which reduces the band gap of TiO_(2).The FTO/TiO_(2) seed layer/TiO_(2) nanorods also exhibited high photodegradation ability for the organic pollutant methylene blue(MB).Within 120 min,77.3%of the MB was found to have been degraded,and the degradation rates remained almost unchanged after four cycles with the same catalyst ***,compared with powdered photocatalysts,the FTO/TiO_(2) seed layer/TiO_(2) nanorod sample is easy to recover,requiring only rinsing with water and natural drying after the reaction.

关键词： TiO_(2)nanorods photocatalysis visible light photodegradation