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Journal of Physical Science and Application 2015年第3期5卷 220-225页

作者： Aung Chan Thar Thaung Hlaing Win Nyein Wint Lwin than zaw oo Department of Physics University of Mandalay Mandalay 100103 Myanmar Department of Physics Yadanabon University Mandalay 100103 Myanmar

The n-type semiconducting titanium oxide thin films are well-known as electron transporting interlayer in photovoltaic cells. The favorable characteristics of interlayers in photovoltaics are high optical transmittance （T%）, wide band gap energy （Eg） and high electrical conductivity （σ）. Modifying titanium oxide films with metal nanoparticles would increase electrical conductivity but reduce optical band gap energy. We developed the sol-gel derived titanium suboxide （TiOx） films modified with silver （Ag） or gold （Au） or copper （Cu） nanoparticles （NPs）. This study explores a tradeoff between narrowing optical band gap and enhancing electrical conductivity of nanostructured TiOx films by controlling the Au- or Ag- or Cu-NPs loading concentrations （mol%） in titania. The Au- and Cu-NPs loading concentration of 4 mol% should meet a tradeoff which yields the higher T%, wider Eg and higher compared to those of pure TiOx films. In addition, since the pure Cu is not thermodynamically stable in ambience as compared to Au and Ag, the stability of as-obtained colloidal CuNPs is also examined. A careful examination of the time evolution of surface plasmon resonance （SPR） bands of CuNPs indicates that their stability is only up to 4 h.

关键词： Titanium suboxide metal nanoparticles electrical conductivity band gap energy.

Optical Absorption and Adsorption of Natural Dye Extracts on TiO2 Scaffolds： Comparison between Green Leaf- and Red Fruit-Extracts

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材料科学与工程（中英文B版） 2017年第4期7卷 166-170页

作者： Hnin Ei Maung Me Me Theint Nyein Wint Lwin than zaw oo Department of Physics University of Mandalay Mandalay 100103 Myanmar

Effect of Photoanode Modification on Charge Transport,Recombination and Efficiency of Dye Sensitized SolarCells Using Synthetic Organic Dyes

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材料科学与工程（中英文A版） 2020年第1期10卷 30-36页

作者： Me Me Theint Hnin Ei Maung Su Htike Aung Nyein Wint Lwin than zaw oo Department of Physics University of MandalayMandalay 05032Myanmar Department of Physics Mandalar Degree CollegeMandalay 05061Myanmar Universities’Research Centre University of YangonYangon 11041Myanmar

The DSSCs (Dye-sensitized solar cells) with photoanode using different sizes of particulate TiO2 (18 nm, 30 nm and 200 nm) have been fabricated. The synthetic organic dyes (LEG4) was used as photosensitizer. The present work mainly investigates the influence of TiO2 photoanode modification on light absorption, charge transport and carrier recombination which are then correlated to the device efficiency measured under AM1.5 solar irradiance. The DSSCs with photoanode using larger 200-nm-TiO2 as light scatterer outperform other devices without larger TiO2. It is attributed to an increase in harvesting photons (by UV-vis spectroscopic measurement) via light scattering, smaller ideality factor (by dark current analysis), thus lower recombination possibility, lower charge transfer resistance and longer electron lifetime (by electrochemical impedance spectroscopy) which results in longer electron diffusion and higher charge collection efficiency. The photoanode modification in DSSCs has a strong impact on optical and charge transport properties, and eventually on the photovoltaic performance.

关键词： DSSCs LEG4 dye TiO2 photoanode charge transport recombination

Detection of Schistosoma Antibodies and exploration of associated factors among local residents around Inlay Lake,Southern Shan State,Myanmar

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Infectious Diseases of Poverty 2017年第1期6卷 19-24页

作者： Htin zaw Soe Cho Cho oo Tin Ohn Myat Nay Soe Maung University of Community Health MagwayMyanmar University of Medicine(Mandalay) MandalayMyanmar University of Medicine(I) YangonMyanmar University of Public Health YangonMyanmar

Background:Schistosomiasis is a chronic parasitic disease caused by blood flukes(trematode worms)of the genus *** transmission has been reported in 78 countries affecting at least 258 million people *** was documented that *** species was prevalent in Shan State,Myanmar,but the serological study was not conducted *** objective of the present study was to detect schistosoma antibodies and explore associated factors among local residents living around Inlay Lake,Nyaung Shwe Township,and Southern Shan State,***:An exploratory and cross-sectional analytic study was conducted among local residents(n=315)in selected rural health center(RHC)areas from December 2012 through June *** participants were interviewed with pretested semi-structured questionnaires and their blood samples(serum)were tested using Schistosomiasis Serology Microwell ELISA test kits(sensitivity 100%and specificity 85%)which detected IgG antibodies but could not distinguish between a new and past *** collected were analysed by SPSS software 16.0 and associations of variables were determined by Chi-squared test with a significant level set at ***:Schistosoma seroprevalence(IgG)in study area was found to be 23.8%(95%CI:18.8-28.8%).The present study is the first and foremost study producing serological evidence of schistosoma infection-one of the neglected tropical diseases-in local people of *** factors significantly associated with seropositivity were being male[OR=2.6(95%CI:1.5-4.49),P<0.001],residence[OR=3.41(95%CI:1.6-7.3),P<0.05 for Khaung Daing *** Chaung]and education levels[OR=4.5(95%CI:1.18-17.16),P<0.05 for illiterate/3Rs level ***/graduate and OR=3.16(95%CI:1.26-7.93),P<0.05 for primary/middle level ***/graduate]all factors classically associated with risk of schistosoma *** of the behavioural factors tested were significantly associated with ***:Schistosoma infection s

关键词： Schistosomiasis Associated factors Inlay Lake Myanmar Seroprevalence Elisa

Comparison of Experimental and Theoretical Output Power of Grid Connected Photovoltaic System in Super Mega Factory

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Journal of Electrical Engineering 2018年第1期6卷 28-32页

作者： Kyaw Kyaw Htet than zaw Htwe Wint Wint Kyaw Zeya oo Department of Electrical Power Engineering Yangon Technological University Yangon 095 Myanmar Department of Engineering Physics Yangon Technological University Yangon 095 Myanmar

In this paper, the performance of grid connected PV system that is installed in Super Mega Factory is presented. The output parameters of 4 kW PV is collected and analyzed. Then, according to the results the weak points of the system were found and the theoretical output power was compared. After that we try to get the maximum output power making the correction of collector angle and place suitable panel position.

关键词： Grid connected PV system output parameters theoretical output power.

Solution of Scattering from Homogeneous Dielectric Object Using Fast Multipole Method

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Solution of Scattering from Homogeneous Dielectric Object Us...

Parallel Multilevel Fast Multipole Method for Solving Large Scale Electromagnetic Problems

2002 3rd International Conference on Microwave and Millimeter Wave Technology

作者： Jian-Ying Li zaw-zaw oo Le-Wei Li Singapore-MIT Alliance(SMA) Department of Electrical and Computer Engineering National University of Singapore 10 Kent Ridge CrescentSingapore 119620

ISBN: (纸本)078037486X

＜正＞In this paper,the method of moment（MoM） is employed to solve the combined field integral equation（CFIE） for scattering by three-dimensional homogeneous dielectric, arbitrary ***,the convergence of conjugate gradient （CG） method is *** the fast multipole method （FMM） is used to reduce the memory required and computational operations.

关键词： electromagnetic wave scattering integral equations convergence of numerical methods conjugate gradient methods method of moments 3D homogeneous dielectric object fast multipole method method of moment MoM combined field integral equation CFIE EM scattering three-dimensional objects convergence conjugate gradient method

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Parallel Multilevel Fast Multipole Method for Solving Large ...

Computing the RCS of Dielectric Coated Objects using Multilevel Fast Multipole Algrithm:Impedance Boudary Condition Approach

2004 3rd International Conference on Computational Electromagnetics and Its Applications

作者： Fang Wu ErPing Li zaw zaw oo Yaojiang Zhang Division of Computational Electro-magnetics ＆ Electronics Institute of High Performance Computing

ISBN: (纸本)0780385624

＜正＞Parallel Multi-level Fast Multipole Method（MLFMM） is an efficient computational algorithm on solving large-scale radar cross section（RCS） *** code is developed and implemented on massively parallel,distributed memory computer ***-level grouping structure is partitioned carefully to separate computational tasks and reduce data *** Passing Interface（MPI） is employed to perform the data transfer and support the matrix-vector product in parallel iterative *** accuracy of code is verified by comparison with results of benchmark target The computational complexity and efficiency of parallel MLFMM is discussed.

关键词： parallel computing fast electromagnetic computational algorithm RCS scattering

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Computing the RCS of Dielectric Coated Objects using Multile...

Participation of private general practitioners in disease management of malaria in Myanmar

2004 3rd International Conference on Computational Electromagnetics and Its Applications

作者： zaw zaw oo En-Xiao Liu Li Er-Ping Y.J.Zhang Li Le-Wei Computational Electronics & Electromagnetics Division Institute of High Performance Computing(IHPC) Science Park 2 Singapore 117528 Department of Electrical & Computer Engineering National University of Singapore(NUS) Kent Ridge Singapore 119260

＜正＞The Fast Multipole Method（FMM） and Multilevel Fast Multipole Algorithm（MLFMA） are successfully developed to solve electrically very large size of perfectly electric conducting objects（PEC）.Using the impedance boundary conditions（IBC）, the integral equations（IEs） can be simplified and solved for wave problems involving imperfectly conducting ***,the algorithm is firstly implemented and verified by comparing with the exact analytical solution for a PEC sphere,and then extended for imperfectly conducting（thin material coating） objects and verified with the analytical ***,it has been applied to an aircraft model with the PEC and material coating surface and compared the results.

关键词： Integral Equations Fast Multipole Method Impedance boundary condition Radar cross section

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Asian Pacific Journal of Tropical Medicine 2009年第5期2卷 71-76页

作者： Thein Tun zaw Win Tun Hla Soe Tint Khin Lin Thar Tun Kyaw Moe Kyaw Myint Department of Medical Research(Upper Myanmar) AnisakhanPyin Oo Lwin 05062Mandalay DivisionMyanmar VBDC Divisional Office 35th StreetMandalayMyanmar

Objective:Myanmar has been trying to improve the disease management of malaria through public health services. The involvement of private general practitioners(GPs) is recognized as one of the key contributory issues in malaria control,but no one has yet made an attempt to study the efficiency of their *** study aimed to assess the participation of GPs in improvement of disease ***:The study was conducted with all 32 GPs practicing at three randomly selected townships with high malaria load situated in Upper Myanmar from June 2006 to March 2007 using a pretest-posttest design to assess their knowledge of the disease management prior to and after *** intervention package consisted of a one-day workshop on diagnosis and treatment of malaria and the supply of facilities for *** filled in before and after tests were compared to assess the change of knowledge after the *** and treatment practice during the study period was analysed by review of registers kept by GPs,together with a follow-up survey of their patients for the reliability of ***:An overall improvement of knowledge was observed and significant changes were apparent for three variables:the criteria for referral of severe malaria,the effect of incomplete treatment and recommended treatment of Plasmodium ***-test results showed that only 65.6%of GPs perceived microscopy or Rapid Diagnostic Test kits(RDTs) for confirmation of malaria necessary,while only 15.6%and 40.6%of the GPs knew the recommended treatments of falciparum and vivax malaria,respectively. However,after intervention 92%of the patients were diagnosed as malaria by RDTs and 3%by microscopy throughout the *** GPs prescribed artemisinin-based combination therapy(ACTs) to 95%of confirmed falciparum cases and treated 82.4%of RDT confirmed falciparum negatives with chloroquine and *** with our study,an international NGO,Population Service In

关键词： Malaria Myanmar Private health services Disease management Private general practitioners

Challenges in early phase of implementing the 1-3-7 surveillance and response approach in malaria elimination setting:A field study from Myanmar

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Infectious Diseases of Poverty 2020年第1期9卷 100-100页

作者： Poe Poe Aung zaw Win Thein Zar Ni Min Hein Kyaw Thet Aung Nwe oo Mon Nay Yi Yi Linn Aung Thi Khin Thet Wai Thae Maung Maung Duke Global Health Institute Myanmar Program YangonMyanmar 不详

Background:The National Plan for Malaria Elimination(NPME)in Myanmar(2016–2030)aims to eliminate indigenous Plasmodium falciparum malaria in six states/regions of low endemicity by 2020 and countrywide by *** achieve this goal,in 2016 the National Malaria Control Program(NMCP)implemented the“1-3-7”surveillance and response *** study aims to identify the barriers to successful implementation of the NPME which emerged during the early phase of the“1-3-7”approach ***:A mixed-methods study was conducted with basic health staff(BHS)and Vector Born Disease Control Program(VBDC)staff between 2017 and 2018 in six townships of six states/regions targeted for sub-national elimination by 2020.A self-administered questionnaire,designed to assess the knowledge required to implement the“1-3-7”approach,was completed by 544 *** analysis was performed for quantitative findings and thematic analysis was conducted for qualitative findings using *** ***:Although 83%of participants reported performing the key activities in the“1-3-7”surveillance and response approach,less than half could report performing those activities within 3 days and 7 days(40 and 43%,respectively).Low proportion of BHS correctly identified six categories of malaria cases and three types of foci(22 and 26%,respectively).In contrast,nearly 80%of respondents correctly named three types of case detection *** cited challenges included‘low community knowledge on health’(43%),‘inadequate supplies’(22%),and‘transportation difficulty’(21%).Qualitative data identified poor knowledge of key surveillance activities,delays in reporting,and differences in reporting systems as the primary *** dominant perceived barrier to success was inability to control the influx of migrant workers into target jurisdictions especially in hard-to-reach *** with township medical officers and the NMCP team leaders further highlighted the necessity o

关键词： Malaria elimination 1-3-7 approach Surveillance and response Basic health staff Mixed methods Myanmar