141 research outputs found

    Sediment Dynamics in Irrawaddy River, Myanmar

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    Master'sMASTER OF SOCIAL SCIENCE

    Loss Minimization of Power Distribution Network using Different Types of Distributed Generation Unit

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    A Radial Distribution network is important in power system area because of its simple design and reduced cost. Reduction of system losses and improvement of voltage profile is one of the key aspects in power system operation. Distributed generators are beneficial in reducing losses effectively in distribution systems as compared to other methods of loss reduction. Sizing and location of DG sources places an important role in reducing losses in distribution network. Four types of DG are considered in this paper with one DG installed for minimize the total real and reactive power losses. The objective of this methodology is to calculate size and to identify the corresponding optimum location for DG placement for minimizing the total real and reactive power losses and to improve voltage profile   in primary distribution system. It can obtain maximum loss reduction for each of four types of optimally placed DGs. Optimal sizing of Distributed Generation can be calculated using exact loss formula and an efficient approach is used to determine the optimum location for Distributed Generation Placement.  To demonstrate the performance of the proposed approach 36-bus radial distribution system in Belin Substation in Myanmar was tested and validated with different sizes and the result was discussed

    Associations between the Mixture of Governance Modes and the Performance of Local Public Service Delivery

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    Since the Myanmar central government decentralized some of its power to state and regional governments, few studies investigated the performance of local governments, and no studies investigated the relationships between the types of governance modes and the performance of public service delivery. This study investigates the associations between three types of governance—i.e., hierarchy, market, and network—and the multiple performances of agricultural services in terms of the competing public values of efficiency, effectiveness and equity in southern Shan State. The findings indicate that the three types of governance simultaneously coexist in local agriculture departments and that their associations with the performances of public services differ. Network governance is negatively associated with efficiency, effectiveness, and equity during its initial stage, but these associations become positive when the degree of network governance increases in agriculture departments. In contrast, market governance is positively related to effectiveness and equity during its initial stage; however, increasing the degree of market governance further leads to a negative association with both public service values. This assessment of the performance of public programmes in terms of the trade-offs among public service values contributes to improving the local governance of public service delivery not only in Myanmar but also in other developing countries

    Computerized FDTD Method for Longitudinal Optical Phonon Energy on Semiconductor Hybrid Structure for High Power Devices Fabrication

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    The research problem in this study is the longitudinal optical phonon energy on metal/semiconductor interface for high performance semiconductor device. The research solution is to make the software model with finite difference time domain (FDTD) solution for transmission and reflection pulse between metal and semiconductor interface for carrier dynamics effects. The objective of this study is to find the quantum mechanics understanding on interface engineering for fabricating the high performance device for future semiconductor technology development. The analysis was carried out with the help of MATLAB. The quantum mechanical spatial field on metal-semiconductor stripe structure has been analyzed by FDTD techniques. This emission reveals a characteristic polar radiation distribution of electric dipoles and a wavelength independent of the structure size or the direction of emission; consequently, it is attributed to thermally generate electric dipoles resonating with the longitudinal optical phonon energy. Phonon energy occurs lattice vibration of material by the polarization of light, if the material has rigid structure reflect back the incident light. So, high reflective metal-semiconductor structure always use as photodectors devices in optical fiber communication. No lattice vibration material structure has no phonon effect, so this structure based devices can get high performance any other structure based devices. The transmission and reflection coefficient of metal-semiconductor GaN/Au layer structure compare with GaN/Ti and GaN/Pt structure. Parallel (P) and transverse (S) polarization of light incident on a metal-semiconductor nanolayer structure with IR wavelength. Efficient use of the layer by layer (LbL) method to fabricate nanofilms requires meeting certain conditions and limitations that were revealed in the course of research on model systems

    Qualitative Study on Domestic Violence Among Married 18-49 Years Men and Women in Hlaingtharyar Township, Yangon Region

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    Violence against men and women is now widely recognized as a violation of human rights and a major public health concerns. It can cause physical, mental, social and reproductive health problems. Violence against men and women now become a growing public health problem. But, there is no research for violence against men in Myanmar and only limited number of research for domestic violence against women in Myanmar. Aim of this study is to explore the reasons of domestic violence among married 18 to 49 years old men and women in Hlaingtharyar township, Yangon region. A cross-sectional descriptive study was conducted by using qualitative approach. This resarch was conducted in Hlaingtharyar Township, Yangon

    Chapter 21 The Kyaukkyan Fault, Myanmar

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    The Incidence of Oral and Oropharyngeal Cancers in Betel Quid-Chewing Populations in South Myanmar Rural Areas

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    Oral cancer is a very common disease in South and Southeast Asia. Betel quid (BQ)- chewing and tobaccosmoking habits are etiological factors for oral cancer patients in these regions. We conducted an oral cancer screening in BQ-chewing endemic rural areas in South Myanmar for the early detection of oral cancer in BQ-chewing and smoking individuals. We examined 105 subjects who were at high risk of oral cancer due to their oral habits (BQ users and/or smokers). Three carcinoma cases were detected, and there were 8 dysplasia cases. The carcinoma detection rate was 2.9%, and the carcinoma and precancerous lesion detection rate was 10.5%. In Myanmar, oral cancer screening has been conducted sporadically on a voluntary basis, and nationwide surveys have never been performed. There are also few reports of oral cancer screening for high-risk groups among the general population in Myanmar. Our present findings highlight the need for further screening and surveys. Education on betel quid chewing- and tobacco- related oral diseases and screening for the early detection of oral cancer are of the utmost importance in the control and prevention of oral cancer

    Role of inclusive self-help groups in prevention and management of diabetes and hypertension in Myanmar:a qualitative study

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    Background: Noncommunicable diseases (NCDs) are a growing public health concern in Myanmar. Community-based self-help groups are essential for participating in health-related activities. However, little is known about the role of inclusive self-help groups (ISHG) in hypertension and diabetes management. This study aimed to assess knowledge and perception of health-related activities of ISHG and explore challenges ISHG group members encountered in performing hypertension and diabetes prevention and management activities.Methods: The study included six townships from three different regions of Myanmar, where ISHG existed. Two focus group discussions (FGDs) were held in each township. A total of twelve FGDs were conducted. All discussions were conducted, audio-recorded and transcribed verbatim in Myanmar language. A thematic analysis was performed using inductive and deductive approaches.Results: The findings revealed that ISHG members provided advice and counselling on behavioural risk factors for hypertension and diabetes prevention and screenings for those diseases. They also offered home care for the elderly and stroke patients who required their assistance. Community members regarded ISHG as a valuable community structure. Members of the ISHG identified a number of challenges, including lack of resources (funding, manpower, and time), lack of confidence, and lack of recognition and acceptance. Support and strengthening activities by local authorities and the government were critical to sustain ISHG's activities and efforts.Conclusions: Hypertension and diabetes management activities of ISHG are appreciative. The public and government should recognize and support ISHG to strengthen their community activities

    High prevalence of hepatitis C in patients with thalassemia and patients with liver diseases in Myanmar (Burma).

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    We conducted Myanmar-Japan cooperation studies on hepatitis B and hepatitis C virus markers in patients with thalassemias and those with liver diseases. Among the 102 patients with liver diseases, 92% had a history of hepatitis B virus infection (antibody to hepatitis B core antigen positive), 35% were hepatitis B surface antigen positive, 39% were positive for anti-HCV. Among 28 patients with hepatocellular carcinoma, 46% had hepatitis B surface antigen, 21.4% had antibody to hepatitis C virus, and 7% were positive for both hepatitis B surface antigen and anti hepatitis C virus. The history of HCV infection among blood recipients at the Haematology Department of the Yangon General Hospital and at the Yangon Children's Hospital was found to be 55.5% and 46.7%, respectively, which is comparable to the history of hepatitis B infection (66.7% and 46.7%, respectively). This preliminary survey also encountered 2 cases positive for anti-HCV among 34 voluntary blood donors. This survey is the first one to report that hepatitis C is at the epidemic stage in Myanmar. As there is no effective treatment for hepatitis C in this country, a screening program for blood used in transfusion should be started immediately.</p

    Human Papillomavirus Infection and Its Possible Correlation with p63 Expression in Cervical Cancer in Japan, Mongolia, and Myanmar

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    Although human papillomavirus (HPV) 16 is the cause of cervical cancer in most countries including Japan, the involvement of cervical cancer with HPV types in Mongolian and Myanmar populations is largely unknown. We examined the expression of HPV in formalin-fixed and paraffin-embedded cervical tissues from 40 Japanese, 32 Mongolian, and 30 Myanmar cervical cancer patients. We performed immunohistochemistry using anti-HPV16 and anti-HPV 1, 6, 11, 16, 18 and 31 cocktail and then correlated it with the expression of Ki-67 and p63. HPV 16 was detected in 72%, 65% and 50% of Japanese, Mongolian and Myanmar cervical cancer patients, respectively, whereas 5 (13%) of the 40 patients, 8 (25%) of the 32 patients and 7 (23%) of the 30 patients in HPV 16-negative cancers were positive for other HPV types included in the cocktail, respectively. Ki-67 labeling index (LI) as well as p63 LI was significantly higher in HPV 16-positive patients than in HPV 16-negative ones in the Japanese and Mongolian samples. p63 expression was significantly associated with stage III and IV in Japan and Mongolia. These findings suggest that HPV 16 may be associated with cell proliferative activity and tumor progression, possibly depending upon the expression of p63 in the cervical cancer. In addition, immunohistochemical detection for distinguishing the type of HPV may also be useful for cervical cancer in the clinical setting
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