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Compensation of Zn substitution and secondary phase controls effective mass and weighted mobility in In and Ga co-doped ZnO material

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Journal of Materiomics 2021年第4期7卷 742-755页

作者： Oanh Kieu Truong Le Anh Tuan Thanh Pham Ngoc Kim Pham trang Huyen Cao Pham Truong Huu Nguyen Dung Van Hoang hanh Kieu thi Ta Dai Cao Truong Hoa thi Lai Thuy Dieu thi Ung Vinh Cao tran Thang Bach Phan aboratory of Advanced Materials University of ScienceHoChiMinh City700000Viet Nam Vietnam National University HoChiMinh City700000Viet Nam Faculty of Physics and Engineering Physics University of ScienceHoChiMinh City700000Viet Nam Faculty of Materials Science and Technology University of ScienceHoChiMinh City700000Viet Nam Center for Innovative Materials and Architectures(INOMAR) HoChiMinh CityViet Nam Institute of Materials Science Vietnam Academy of Science and TechnologyHanoi100000Viet Nam

Conductivity s and thermal conductivity k are directly related to carrier concentration while Seebeck coefficient S is inversely proportional to carrier ***,improving thermoelectric(TE)performance is ***,the first-time analysis of secondary phase-controlled TE performance in terms of density-of-state effective mass m*d,weighted mobility mw and quality factor B is discussed in ZnO *** results show that the secondary spinel phase Ga2O_(3)(ZnO)9 not only impacts on k but also on s and S at high temperature,while the effect of carrier concentration seem to be dominant at low *** the high-spinel-segregation sample,a compensation of dopant atoms from the spinel to substitutional sites in the ZnO matrix at high temperature leads to a low decreased rate of temperaturedependent m**** compensation process also induces a band sharpening,a small mw reduction,and a large B *** a result,In and Ga co-doped ZnO bulk with the highest spinel segregation achieves the greatest PF improvement by 112.8%,owing to enhanced Seebeck coefficient by 110%as compared to the good Zn-substitution sample.

关键词： Thermoelectrics In and Ga co-Doped ZnO Secondary phase Zn substitution DOS effective Mass Weighted mobility

One-loopformulas for H→Zν_(ι)ν_(ι),forιe,μ,τin't Hooft-Veltman gauge

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Chinese Physics C 2023年第5期47卷 112-131页

作者： Dzung Tri tran Khiem hong Phan Institute of Fundamental and Applied Sciences Duy Tan UniversityHo Chi Minh City 700000Vietnam Faculty of Natural Sciences Duy Tan UniversityDa Nang City 550000Vietnam

In this paper,we present analytical results for one-loop contributions to the decay processes H-Zvivi(for I=e,μ,T).The calculations are performed within the Standard Model framework in the't Hooft-Veltman ***-loop form factors are then written in terms of scalar one-loop functions in the standard notations of *** a result,one-loop decay rates for the decay channels can be evaluated numerically by using the ***,we analyze the signals of H→Zvivi via the production processes e-e+→ZH*-Z(H*→Zν_(ι)ν_(ι)),including the initial beam polarizations at future lepton *** Standard Model backgrounds,such as the processes e-e+→ν_(ι)ν_(ι)ZZ,are also examined in this *** results indicate that one-loop corrections make contributions of approximately 10%to the decay *** are sizeable contributions and should be taken into account at future *** show that the signals H-Zν_(ι)ν_(ι)are clearly visible at the center-of-mass energy√s=250 GeV and are difficult to probe in higher-energy regions owing to the dominant backgrounds.

关键词： Higgs phenomenology one-loop Feynman integrals analytic methods for quantum field theory dimensional regularization future colliders

Ecoregional variations of aboveground biomass and stand structure in evergreen broadleaved forests

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Journal of Forestry Research 2020年第5期31卷 1713-1722页

作者： tran Van Do Mamoru Yamamoto Osamu Kozan Vo Dai Hai Phung Dinh Trung Nguyen Toan Thang Lai Thanh Hai Vu Thanh Nam Trieu Thai Hung Hoang Van Thang tran Duc Manh Cao Chi Khiem Vu Tien Lam Nguyen Quang Hung tran Hoang Quy Pham Quang Tuyen Trinh Ngoc Bon Nguyen thi Thu Phuong Ninh Viet Khuong Nguyen Van Tuan Dang thi Hai Ha tran Hai Long Dang Van Thuyet Dang thinh Trieu Nguyen Van thinh tran Anh Hai Duong Quang Trung Nguyen Van Bich Dinh Hai Dang Pham Tien Dung Nguyen Huy Hoang Le thi hanh Phan Minh Quang Nguyen thi Thuy Huong Hoang Thanh Son Nguyen Thanh Son Nguyen thi Van Anh Nguyen thi Hoai Anh Pham Dinh Sam Hoang thi Nhung Hoang Van Thanh Nguyen Huu thinh tran hong Van Ho Trung Luong Bui Kieu Hung Research Institute for Sustainable Humanosphere Kyoto UniversityUjiKyotoJapan Silviculture Research Institute Vietnamese Academy of Forest SciencesNorth Tu LiemHanoiVietnam Center for Southeast Asian Studies Kyoto UniversityKyotoJapan Vietnamese Academy of Forest Sciences North Tu LiemHanoiVietnam Vietnam Administration of Forestry No.2 Ngoc HaBa DinhHanoiVietnam

Biotic and abiotic factors control aboveground biomass(AGB)and the structure of forest *** study analyses the variation of AGB and stand structure of evergreen broadleaved forests among six ecoregions of Vietnam.A data set of 1731-ha plots from 52 locations in undisturbed old-growth forests was *** results indicate that basal area and AGB are closely correlated with annual precipitation,but not with annual temperature,evaporation or hours of *** area and AGB are positively correlated with trees>30 cm *** areas surveyed(52.6%)in these old-growth forests had AGB of 100–200 Mg ha^-1;5.2%had AGB of 400–500 Mg ha^-1,and 0.6%had AGB of>800 Mg ha^-*** percent of the areas surveyed had stand densities of 300–600 ***^-1,and 64%had basal areas of 20–40 m^2 ha^-*** is an important factor influencing the AGB of old-growth,evergreen broadleaved forests in *** causing the loss of large-diameter trees(e.g.,>100 cm DBH)affects AGB but may not seriously affect stand density.

关键词： Aboveground biomass Carbon storage Climatic variables Ecoregion Edaphic variables Oldgrowth forest

个人-组织匹配视角下组织支持感与离职倾向研究 ——以越南中小企业为例

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个人-组织匹配视角下组织支持感与离职倾向研究 ——以越南中小企...

作者： NGUYEN thi hong hanh 浙江师范大学

学位级别：硕士

1986年改革开放后,越南的经济增长迅猛,越来越多的中小企业开始崛起,其数量已经远远超过了越南国有企业的数量。这些越南中小企业在促进国家财政收入和创造国内就业机会的同时,也正面临人才匮乏和技术落后的挑战。近年来,越来越多的越... 详细信息

1986年改革开放后,越南的经济增长迅猛,越来越多的中小企业开始崛起,其数量已经远远超过了越南国有企业的数量。这些越南中小企业在促进国家财政收入和创造国内就业机会的同时,也正面临人才匮乏和技术落后的挑战。近年来,越来越多的越南中小企业开始意识到这一问题的严重性,并开始针对员工的离职率进行深入研究,聚焦吸引和留住人才、促进员工归属感与满意度提升,提出了一系列的改进策略,并通过实践不断优化人力资源管理的手段。在过去的研究中,人力资源管理专家和学者大多专注于关注员工对组织的承诺与忠诚度,却忽视了组织对员工的支持和承诺。笔者着重考察了个人-组织匹配、组织支持感和离职倾向三者之间的关系,并对国外优秀的人力资源管理经验进行了学习和借鉴,以期为降低员工离职倾向、提升组织向心力,提供具有指导意义的建议。该研究通过考察个人-组织匹配和组织支持感对离职倾向的显著性,以此探究影响越南中小企业员工离职的主要因素。本文首先对个人-组织匹配、组织支持感和离职倾向的概念及测量等进行了文献综述,其次分析了越南中小企业的发展现状、特点和员工离职率情况,探索越南中小企业内个人-组织匹配、组织支持感及离职倾向三者的动态变化间是否有内在联系。最后据此提出了提高员工与企业匹配度、建立有效的员工激励机制、做好员工关怀提升忠诚度、畅通企业的有效沟通渠道、常态化培训促进员工认同、加强文化建设形成凝聚力等管理建议。本文基于人-组织匹配理论的观点,分析了越南中小企业人力资源管理中员工与企业间的相互作用、组织给员工带来的主观支持感受等方面对员工离职倾向的影响,主要有以下四个方面的结论:(1)通过对被试人口统计学变量的分析,得出性别、婚姻状况两项对员工个人-组织匹配、组织支持感及离职倾向的影响没有差异。年龄、任职时间对员工个人-组织匹配、组织支持感及离职倾向的影响存在显著差异。(2)越南中小企业的个人-组织匹配对组织支持感存在显著的正向作用。从因子维度上看,个人组织匹配与组织支持感中的利益性支持、价值性支持具有很强的相关性,组织支持感与个人组织匹配中的需求-供给匹配具有很强的相关性。(3)越南中小企业的个人-组织匹配对离职倾向存在显著负向作用。从因子维度上看,离职倾向与个人-组织匹配中的价值观匹配、需求-供给匹配相关性较强。(4)越南中小企业的组织支持感对离职倾向存在显著负向作用。从因子维度上看,离职倾向与组织支持感中的情感性支持、价值性支持相关性较强。

关键词：越南中小企业人力资源管理个人-组织匹配组织支持感离职倾向

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基于组织学习的协作文化与竞争优势关系研究

基于组织学习的协作文化与竞争优势关系研究

作者： NGUYEN thi hong hanh 湖南大学

学位级别：硕士

如今,中小型企业在越南经济中扮演越来越重要的角色,是推动越南社会经济发展和就业的主要动力。国家的发展进程与中小企业发挥主导作用的私营企业的整合和并购紧密相关。虽然中小企业对国家经济活动的影响存在着一定的差异,但中小企业... 详细信息

如今,中小型企业在越南经济中扮演越来越重要的角色,是推动越南社会经济发展和就业的主要动力。国家的发展进程与中小企业发挥主导作用的私营企业的整合和并购紧密相关。虽然中小企业对国家经济活动的影响存在着一定的差异,但中小企业在越南经济中的作用非常关键。一方面,中小企业可以利用较少的投资创造更多的服务和产品,用较少的资金成本提供更多的就业机会,受到经济波动的影响相对较小,而且可以更好的随市场的变化和差异性而改变;另一方面,中小企业更倾向于技术创新,较易形成稳定的区域性发展,促进缩小国家范围内各地区的收入差异。因此,寻找促进中小企业持续发展和竞争优势的有效途径,对于中小企业以及越南的经济发展都具有十分重要的作用。从长远角度来看,为使企业获得并始终保持竞争优势,许多研究都将组织学习模式和组织文化建设作为重要的解决方案。在这样的背景下,本文将重点研究协作文化(作为企业文化的核心价值观)以及组织学习对中小型制造企业竞争优势方面的具体影响和表现形式。本论文的研究主题是探讨影响中小企业竞争优势的一些潜在因素,选取的研究样本为2015年越南网公布的500家中小企业名单中的86家中小企业。最终的样本是从86家初始中小企业中选取的35家公司,结构方程模型(SEM)应用于测量自变量对相关变量的影响程度,数据来源于越南的一些发达城市(如河内、胡志明市和北宁城等)的35家中小型企业,236名参与者。本文采用了SPSS和AMOS version 21等软件对收集的数据进行分析,分类集中探讨越南中小型企业中协作文化与组织学习之间的关系以及对企业竞争优势的影响.总体而言,研究结果表明组织学习在协作文化和竞争优势之间的关系中扮演中介变量的角色。这意味着协作文化的实践通过提高组织学习的某些具体方面直接或间接地对竞争优势产生显著影响。本文的研究提供了理论基础,可以用来分析协作文化、组织学习的具体方面以及竞争优势之间的关系。此外,从实践角度出发,通过较为深入的讨论协作文化对组织学习具体方面的影响,进而形成竞争优势,从而使企业CEO或管理者对鼓励和促进中小企业竞争优势的必要因素有了更加深刻的认识。特别地,本研究为企业CEO或管理者在选择战略(差异化竞争战略或低成本竞争战略)方面提供了一些具体建议和方案,即通过在恰当的实践中集中合适的资源和努力选择正确的竞争战略。

关键词：组织文化协作文化组织学习差异化竞争优势低成本的竞争优势

Surface Mapping of Resistive Switching CrO_x thin Films

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Advances in Materials Physics and Chemistry 2016年第3期6卷 21-27页

作者： Kim Ngoc Pham Kieu hanh thi Ta Lien Thuong thi Nguyen Vinh Cao tran Bach Thang Phan Faculty of Materials Science University of Science Vietnam National University Ho Chi Minh City Vietnam Faculty of Resources and Environment Thu Dau Mot University Binh Duong City Vietnam Laboratory of Advanced Materials University of Science Vietnam National University Ho Chi Minh City Vietnam

In this work, we investigated resistive switching behavior of CrOx thin films grown by using sputtering technique. Conventional I-V measurements obtained from Ag/CrOx/Pt/Ti/SiO2/Si structures depict the bipolar switching behavior, which is controlled by formation/dissolution processes of Ag conducting filaments through electrochemical redox reaction under external electric field driven. Conductive atomic force microscopy (C-AFM) technique provides the valuable mapping images of existing Ag filaments at low resistance state as well as the characteristics of filament distributions and diameters. this study also reveals that where the higher amplitude of topography is, the easier possibility of forming conducting filament paths is on CrOx surface films.

关键词： Resistive Switching Chromium Oxide C-AFM Surface Mapping Metal Filament

Influence of Foliar Fertilizers on Growth and Development of Petunia hybrida in Winter-Spring 2015-2016 in Thua thien Hue

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Journal of Agricultural Science and Technology(A) 2017年第B10期7卷 40-47页

作者： The thi Dieu Nguyen Phuong thi Xuan tran Hai thi hong Truong Khoa Dang tran Hue University 03 Le Loi StreetHue City 530000Vietnam Institute of Biotechnology Hue UniversityTinh Lo 10 StreetHue City 530000Vietnam Agronomy Faculty University of Agriculture and ForestryHue University102 Phung Hung StreetHue City 530000Vietnam

The experiment was conducted in winter-spring 2015-2016 in Thua thien Hue to identify different foliar fertilizer for Petunia hybrida having good growth and development,beautiful colors and long lifetime under local *** experiment included four treatments with three kinds of forliar fertilizers—Dau Trau MK 30-10-5,gibberellin 25-10-10 and abscisic *** control treatment(T0)used sterilized water without foliar *** results showed that all the foliar fertilizers influenced well on growth and development of Petunia *** Trau MK 30-10-5 helped Petunia hybrida have high quality and high value/cost ratio than the others.

关键词： Foliar fertilizer Petunia hybrida growth Thua thien Hue

Analysis of Storm Pattern for Design Urban Drainage System in the Monsoon Areas of Vietnam

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Journal of Environmental Science and Engineering(A) 2018年第2期7卷 49-68页

作者： Bui thi Thu trang Nguyen thi hong hanh Nguyen thi Hoai Thuong Nguyen Van Thuan Faculty of Environment Hanoi University of Natural Resources and EnvironmentHanoi 100000Vietnam Department of General Affairs State Audit Office of VietnamHanoi 100000Vietnam

In Vietnam,rainfall data usually received using daily rainfall at all hydrology stations with higher time resolution are ***,its analyses to achieve IDF(Intensity-Duration-Frequency)curves are often required at a finer scale such as ***,it needs to develop and apply methods to derive the IDF characteristics of short-duration events from daily rainfall statistics in *** recent years,the need for new insights into the rainfall process leading to new approaches to model the distribution of rainfall intensities in time and space was *** research aims to establish IDF curves for monsoon climate area in Vietnam based on scaling *** properties of extreme rainfall are examined in the Red River Delta of Vietnam in order to establish scaling behavior of statistical moments over different *** scaling or scale-invariant models enable us to scale data from one temporal resolution to another,and thus,help to overcome the lack of the extreme rainfall data of sub-daily *** disaggregation or downscaling techniques are used to obtain sub-daily rainfall data from daily rainfall data for the derivation of scaled IDF *** results show that most of rainfall amount(approximately 70%)received from rains occurring between 6:0 pm to 6:0 am of the day after that,the daytime usually less rainfall occurrence with only 30%.The peak rainfall is usually occurred during 0:0 am to 4:0 am having approximately 42.98%of rainfall amount over a *** peak rainfall likely happen earlier in the recent year(36%rainfall amount over a day occurrence from 6:00 pm to 10:00 pm in 2008).The analysis also illustrated that approximately 40%of rainfall events have duration less than 60 *** contrast,only approximately 9%of rainfall events have duration more than 6 hours but total rainfall depths of these events is approximately.

关键词： IDF(Intensity-Duration-Frequency)curves design rainfall for urban design rainfall in the Monsoon areas

The A/ENTH Domain-Containing Protein AtECA4 Is an Adaptor Protein Involved in Cargo Recycling from the trans-Golgi Network/Early Endosome to the Plasma Membrane

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Molecular Plant 2018年第4期11卷 568-583页

作者： hong hanh Nguyen Myoung Hui Lee Kyungyoung Song Gyeongik Ahn Jihyeong Lee Inhwan Hwang Division of Integrative Biosciences and Biotechnology Pohang University of Science and Technology Pohang 790-784 Korea Department of Life Sciences Pohang University of Science and Technology Pohang 790-784 Korea

Endocytosis and subsequent trafficking pathways are crucial for regulating the activity of plasma membrane-localized proteins. Depending on cellular and physiological conditions, the internalized cargoes are sorted at （and transported from） the trans-Golgi network/early endosome （TGN/EE） to the vacuole for degradation or recycled back to the plasma membrane. How this occurs at the molecular level remains largely elusive. Here, we provide evidence that the ENTH domain-containing protein AtECA4 plays a crucial role in recycling cargoes from the TGN/EE to the plasma membrane in Arabidopsis thaliana. AtECA4：sGFP primarily localized to the TGN/EE and plasma membrane （at low levels）. Upon NaCI or mannitol treatment, AtECA4：sGFP accumulated at the TGN/EE at an early time point but was released from the TGN/EE to the cytosol at later time points. The ateca4mutant showed higher resistance to osmotic stress and more sensitive to exogenous abscisic acid （ABA） than the wild type, as well as increased expres- sion of ABA-inducible genes RD29A and RD29B. Consistently, ABCG25, a plasma membrane-localized ABA exporter, accumulated at the prevacuolar compartment in ateca4, indicating a defect in recycling to the plasma membrane. However, the role of AtECA4 in cargo recycling is not specific to ABCG25, as it also functions in the recycling of BRII. These results suggest that AtECA4 plays a crucial role in the recycling of endocytosed cargoes from the TGN/EE to the plasma membrane.

关键词： abiotic stress A/ENTH cargo recycling