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Chinese Journal of Electrical Engineering 2024年第1期10卷 12-20页

作者： Hein htet aung Yuhuai Wang Jin Li Ying Zhang Tatsuo Takada School of Electrical and Information Engineering Tianjin UniversityTianjin 300072China Department of Power Generation and Transformation Engineering Baoding Technical College of Electric PowerBaoding 071051China Measurement and Electric Machine Control Laboratory Tokyo City UniversityTokyo 158-8557Japan

Epoxy resin is widely used in the support,insulation,and packaging components of electrical equipment owing to their excellent insulation,thermal,and mechanical ***,epoxy-resin insulation often suffers from thermal and mechanical stresses under extreme environmental conditions and a compact design,which can induce electrical tree degradation and insulation failure in electrical *** this study,the photoelastic method is employed to investigate the thermal-mechanical coupling stress dependence of the electrical treeing behavior of epoxy *** electrical tree growth morphology and stress distribution were observed using the photoelastic *** correlation between the tree length and overall accumulated damage with an increase in mechanical stress is *** results show that compressive stress retards the growth of electrical trees along the electric field,while tensile stress has accelerating *** proves that the presence of thermal stress can induce more severe accumulated damage.

关键词： Epoxy resin electrical tree degradation thermal stress mechanical stress photoelastic effects

Triploid Wild Rice (BKK) Strain Found in Bangkok Originated from Hybridizations among Three Parental <i>Oryza</i>Species

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American Journal of Plant Sciences 2022年第1期13卷 36-49页

作者： So Makabe htet aung htut Hiroko Takahashi Sayaka Shida Masahiro Akimoto Hathairat Urairong Ryuji Ishikawa Tadashi Sato Yo-Ichiro Sato Ikuo Nakamura BEX Co Ltd. Tokyo Japan Graduate School of Horticulture Chiba University Matsudo Japan Obihiro University of Agriculture and Veterinary Medicine Obihiro Japan Biotechnology Research and Development Office DOA Thanyaburi Thailand Faculty of Agriculture and Life Science Hirosaki University Hirosaki Japan Graduate School of Life Sciences Tohoku University Sendai Japan Kyoto Prefectural University Kyoto Japan

A wild rice (BKK) strain showing sterile spikelet and big leaves inhabited at the basin of the Chao Phraya river of Bangkok city, Thailand. The BKK strain was found as a natural triploid and thus its origin has been interested long time. Three different-sized fragments were amplified in RNA polymerase I largest subunit (PolA1) gene, which is a single-copy nuclear gene per haploid genome. Short type (0.14 kb) intron 20 sequence of BKK strain was identical to that of O. rufipogon and O. sativa. Phylogenetic analysis showed that long type (1.5 kb and 1.8 kb) intron 20 sequences of BKK strain were closely related to that of O. longistaminata and O. officinalis, respectively. We analyzed protein tag (Ptag) sequence encoded by exons 19 to 21 of PolA1 gene. Determined three Ptag sequences of BKK strain were identical to that of O. rufipogon, O. longistaminata, and O. officinalis, respectively. Relative DNA content of nuclei in O. officinalis and BKK strain was 1.5 and 1.75 times than that in O. sativa, respectively. And BKK strain contained CentO-C1 repeats, which were unique to O. officinalis. These results indicated that BKK strain comprised three genomes of O. rufipogon, O. longistaminata, and O. officinalis.

关键词： Oryza rufipogon Triploid Flow Cytometry PolA1 CentO-C1 Repeat Sequence

Knockdown of <i>GmSOG1</i>Compromises Drought Tolerance in Transgenic Soybean Lines

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American Journal of Plant Sciences 2021年第1期12卷 18-36页

作者： Samuel Aduse Poku Peter Nkachukwu Chukwurah htut htet aung Ikuo Nakamura Laboratory of Plant Cell Technology Chiba University Chiba Japan

Plants are regularly exposed to myriads of stress factors that cause tremendous damage to their genetic make-up. To ensure genome stability and survival over several generations under harsher environmental conditions, plants have evolved a unique mechanism for dealing with DNA damage known as the DNA damage response pathway (DDR). It has been proposed that there may exist a relationship between the DNA damage response pathway and abiotic stress response in plants. To further investigate this relationship, we knocked down the soybean suppressor of gamma response 1 gene (GmSOG1), a master regulatory gene of the DDR, in soybean plants and subjected the generated transgenic plants to drought stress analysis. Gene expression analysis of the GmSOG1 gene in drought stressed soybean tissues revealed high levels of expression in buds and young leaves. The root lengths and root fresh weights of transgenic soybean plants grown on Murashige and Skoog media supplemented with Gamborg B5 vitamins (MSB5 media) containing 200 mM mannitol for 10 days were significantly lesser than those of drought stressed wild-type plants. Polyethylene glycol (PEG) induced drought stress assay in vivo resulted in significant damage in transgenic plants compared with wild-type plants. Also, the relative expressions of known drought responsive transcription factors such as GmDREB1 and GmLEA as well as antioxidation related genes like

Neurodegenerative diseases:a hotbed for splicing defects and the potential therapies

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Translational Neurodegeneration 2021年第2期10卷 195-212页

作者： Dunhui Li Craig Stewart McIntosh Frank Louis Mastaglia Steve Donald Wilton May Thandar aung-htut Centre for Molecular Medicine and Innovative Therapeutics Health Futures InstituteMurdoch UniversityPerthWestern AustraliaAustralia Perron Institute for Neurological and Translational Science Centre for Neuromuscular and Neurological DisordersThe University of Western AustraliaPerthWestern AustraliaAustralia

Precursor messenger RNA(pre-mRNA)splicing is a fundamental step in eukaryotic gene expression that systematically removes non-coding regions(introns)and ligates coding regions(exons)into a continuous message(mature mRNA).This process is highly regulated and can be highly flexible through a process known as alternative splicing,which allows for several transcripts to arise from a single gene,thereby greatly increasing genetic plasticity and the diversity of *** splicing is particularly prevalent in neuronal cells,where the splicing patterns are continuously changing to maintain cellular homeostasis and promote neurogenesis,migration and synaptic *** continuous changes in splicing patterns and a high demand on many cis-and trans-splicing factors contribute to the susceptibility of neuronal tissues to splicing *** resultant neurodegenerative diseases are a large group of disorders defined by a gradual loss of neurons and a progressive impairment in neuronal *** of the most common neurodegenerative diseases involve some form of splicing defect(s),such as Alzheimer’s disease,Parkinson’s disease and spinal muscular *** growing understanding of RNA splicing has led to the explosion of research in the field of splice-switching antisense oligonucleotide *** we review our current understanding of the effects alternative splicing has on neuronal differentiation,neuronal migration,synaptic maturation and regulation,as well as the impact on neurodegenerative *** will also review the current landscape of splice-switching antisense oligonucleotides as a therapeutic strategy for a number of common neurodegenerative disorders.

关键词： Neurodegenerative diseases Parkinson’s disease Alzheimer’s disease Alternative splicing Splicing defects Antisense oligonucleotides Splice-switching Disease-modifying treatment

Chemical analysis of hydroquinone and retinoic acid contents in facial whitening creams

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Asian Journal of Pharmaceutical Sciences 2016年第1期11卷 89-90页

作者： aung Myo htet Ei Ei Thin Mi Mi Saw Soe Win Health Promotion and Diseases Prevention Department Health and Diseases Control UnitNay Pyi TawMyanmar Pharmaceutical Chemistry Department Myanmar Pharmaceutics Department University of PharmacyYangonMyanmar Department of Pharmacy Military Institute of Nursing and Paramedical SciencesYangonMyanmar

Hydroquinone is potentially carcinogenic and is known to be a skin and respiratory *** is carcinogenic it has been banned in some countries because of fears of a cancer risk[1,2].Animal studies have shown that topically applied retinoic acid can be photocarcinogenic[3].The aim of this study was qualitative and quantitative determination of hydroquinone and retinoic acid contents in facial whitening creams by colour reaction tests,FT-IR after TLC separation and HPLC.

关键词： Hydroquinone and retinoic acid HPLC Facial whitening creams

The contribution of a non-governmental organisation’s Community Based Tuberculosis Care Programme to case finding in Myanmar:trend over time

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Infectious Diseases of Poverty 2017年第1期6卷 449-454页

作者： htet Myet Win Maung Saw Saw Petros Isaakidis Mohammed Khogali Anthony Reid Nguyen Binh Hoa Ko Ko Zaw Saw Thein Si Thu aung National Tuberculosis Programme Ministry of Health and SportsZabuthiri townshipPostcode 15011 Nay Pyi TawMyanmar Department of Medical Research Ministry of Health and SportsYangonMyanmar Medecins Sans Frontieres Operational Research UnitMSF-LuxembourgLuxembourgLuxembourg National Tuberculosis Programme HanoiVietnam Centre for Operational Research International Union Against Tuberculosis and Lung DiseaseParisFrance

Background:It is estimated that the standard,passive case finding(PCF)strategy for detecting cases of tuberculosis(TB)in Myanmar has not been successful:26%of cases are ***,alternative strategies,such as active case finding(ACF)by community volunteers,have been initiated since *** study aimed to assess the contribution of a Community Based TB Care Programme(CBTC)by local non-government organizations(NGOs)to TB case finding in Myanmar over 4 ***:This was a descriptive study using routine,monitoring *** data from the NGOs were sent to a central registry within the National TB Programme and data for this study were extracted from that *** from all 84 project townships in five regions and three states in Myanmar were *** project was launched in ***:Over time,the number of presumptive TB cases that were referred decreased,except in the Yangon Region,although in some areas,the numbers *** the same time,there was a trend for the proportion of cases treated,compared to those referred,that decreased over time(P=0.051).Overall,among 84 townships,the contribution of CBTC to total case detection deceased from 6%to 4%over time(P<0.001).Conclusions:Contrary to expectations and evidence from previous studies in other countries,a concerning reduction in TB case finding by local NGO volunteer networks in several areas in Myanmar was recorded over 4 *** suggests that measures to support the volunteer network and improve its performance are *** may include discussion with local NGOs human resources personnel,incentives for the volunteers,closer supervision of volunteers and improved monitoring and evaluation tools.

关键词： Operational research Community based tuberculosis care Contribution SORT IT

控电位下粒径对辉铜矿化学和生物柱浸动力学的影响研究

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控电位下粒径对辉铜矿化学和生物柱浸动力学的影响研究

作者： htet aung PHYO 中国科学院大学(中国科学院过程工程研究所)

学位级别：硕士

辉铜矿（Cu2S）是最为常见的次生硫化铜矿物之一,也是重要的铜资源。自上世纪80年代以来,由于环保和经济上的优势,生物堆浸工艺处理低品位辉铜矿得以在世界范围内广泛应用。尽管该工艺已在工业上广泛应用,仍然存在铜浸出速率慢,铜回收率... 详细信息

辉铜矿（Cu2S）是最为常见的次生硫化铜矿物之一,也是重要的铜资源。自上世纪80年代以来,由于环保和经济上的优势,生物堆浸工艺处理低品位辉铜矿得以在世界范围内广泛应用。尽管该工艺已在工业上广泛应用,仍然存在铜浸出速率慢,铜回收率低,浸出周期长,酸耗成本高等问题。破碎粒径是重要的工艺参数之一,破碎粒径过粗影响铜回收率,破碎粒径过细则影响成本和渗滤性。尽管有许多研究报道了辉铜矿在酸性Fe2（SO4）3介质中的浸出动力学,但是缺乏控电位条件下,粒度对辉铜矿柱浸动力学影响的研究。本论文针对辉铜矿生物堆浸过程中破碎粒径对浸出速率及生产成本影响较大的问题,开展了不同粒级的辉铜矿“第一阶段”和“第二阶段”的浸出动力学研究,对优化辉铜矿生物堆浸工程实践具有借鉴意义。本论文在恒电位（Eh）,恒温和恒pH的条件下,研究了粒度对辉铜矿纯矿物柱浸动力学的影响。此外,为了模拟堆浸,采用萃余液喷淋研究了粗粒级的低品位铜矿的柱浸动力学。本论文旨在探究不同粒级（0.054-200 mm）对辉铜矿柱浸动力学的影响,并利用未反应收缩核模型研究速率控制步骤。实验结果表明,粒度对辉铜矿第一阶段浸出动力学影响显著,由于硫层阻碍作用,粒度对第二阶段浸出速率影响较小。CT和SEM-EDS结果表明辉铜矿浸出后孔隙和裂缝明显增加。“第二阶段”动力学分析表明细粒级（0.054-31 mm）浸出同时受化学反应和扩散控制,而粗粒级（31-200 mm）浸出主要受扩散过程控制。通过粒度对辉铜矿浸出动力学的影响,进一步明确了微生物强化辉铜矿浸出的作用:嗜酸铁氧化菌除了维持溶液电位平衡,更重要体现在提高Fe3+和Fe2+的扩散推动力;嗜酸硫氧化菌主要作用体现在氧化S0层,减少扩散阻碍。本论文为生物堆浸应用中选择合理的破碎粒径提供了基础数据支持,为优化生物堆浸实践提供参考。

关键词：粒径柱浸收缩核模型 CT

变革型领导对员工满意度的影响：工作动机的中介作用

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变革型领导对员工满意度的影响：工作动机的中介作用

作者：叶问（YE WINT htet aung）天津师范大学

学位级别：硕士

近年来,变革型领导已成为一种能够激励或改造员工的领导风格,可以提高员工的动力和工作满意度,从而为组织和员工自身带来成就。本研究旨在探讨变革型领导对缅甸中小企业员工工作满意度的影响,并探讨工作动机在其中的中介作用。本研究只... 详细信息

近年来,变革型领导已成为一种能够激励或改造员工的领导风格,可以提高员工的动力和工作满意度,从而为组织和员工自身带来成就。本研究旨在探讨变革型领导对缅甸中小企业员工工作满意度的影响,并探讨工作动机在其中的中介作用。本研究只关注变革型领导力的两个维度,即鼓舞式的激励和理想化影响。在研究中,发现了这两个维度对工作满意度和工作动力的影响。随着市场竞争日益激烈,每个组织都需要学习充满活力的领导风格和有效的策略,以在市场上保持竞争优势,并为渴望新产品的客户提供服务。工作满意度已成为组织实现绩效的关键影响因素,可以为员工带来认可、收入、晋升和其他目标的实现。而激励是提高员工工作满意度的主要动力。本研究针对缅甸的中小型企业中的360名员工进行了问卷调查。使用多因素领导力问卷(MLQ Form 5X)衡量变革型领导力,使用自决理论中的多维工作动机量表(MWMS)衡量工作动机,使用满意度理论衡量工作。应用统计软件SPSS 21.0,对收集的这360名受访者的数据进行分析,7个研究假设得到了验证。本研究结果表明,变革型领导与工作满意度是相互关联的,工作动机可以作为变革型领导性格激励动机与理想化影响行为对工作满意度和工作动力产生正向影响的中介常量值。在这项研究中,我们证明了只有两种变革型领导风格才能提高作为不同组织风格的动力和工作满意度。

关键词：变革型领导工作满意度员工的工作动机

在商品肉鸡中禽后肺炎病毒A亚型和B亚型的致病性比较

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在商品肉鸡中禽后肺炎病毒A亚型和B亚型的致病性比较

Knockdown of GmSOG1 Compromises Drought Tolerance in Transgenic Soybean Lines

第15届世界禽病大会、中国畜牧兽医学会2007年学术年会

作者： Ye htut aung Ulrich Neumann Silke Rautenschlein 韦莉刘爵 Department of Medicine University of Veterinary Science Yezin Myanmar Clinic for Poultry University of Veterinary Medicine Hannover Germany Clinic for Poultry University of Veterinary Medicine Hannover Germany

肉鸡和肉种鸡中与禽后肺炎病毒 A 亚型和/或 B 亚型相关的肿头综合症世界各地都有报道。但禽后肺炎病毒 A 亚型和 B 亚型在肉鸡中的致病性资料极少,因此,本研究试图比较商品肉鸡禽后肺炎病毒 A

关键词：禽后肺炎病毒致病性组织病理学损伤 RT-巢式 PCR

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