• 제목/요약/키워드: thailand

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태국 열대몬순기후 조건에서 PV모듈 기술별 성능특성 비교 연구 (Comparative Study on Performance of Grid-Connected Photovoltaic Modules in Tropical Monsoon Climate under Thailand condition)

  • 김승덕;고병욱;박진희;천대인
    • 신재생에너지
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    • 제10권3호
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    • pp.39-46
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    • 2014
  • The performances of three different types of photovoltaic (PV) module technologies namely, copper-indium-diselenide (CIGS), mono-crystalline silicon (mo-Si) and amorphous silicon (a-Si) have been comparatively studied in the grid-connected system for more than a year under the tropical monsoon climate of Thailand. The yields, performance ratios and system efficiencies for the respective PV module technologies have been calculated and a comparison is presented here. The performance ratios of the initial operation year for CIGS showed highest among the compared technologies under Thailand climate conditions by marking 97.0% while 89.6% for a-Si and 81.5% for mo-Si. Although mo-Si has shown highest efficiencies all over the period, under the testing conditions, the operating efficiency of mo-Si was down-graded from its reference value mainly due to high operating temperature and the efficiency of the tested CIGS module was also found as high as that of mo-Si in the study. Accordingly, outdoor assessment shows that CIGS modules have demonstrated high performance in terms of yields and performance ratios in Thailand climate conditions.

Prevalence of Haplorchis taichui and Haplorchoides sp. Metacercariae in Freshwater Fish from Water Reservoirs, Chiang Mai, Thailand

  • Nithikathkul, Choosak;Wongsawad, Chalobol
    • Parasites, Hosts and Diseases
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    • 제46권2호
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    • pp.109-112
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    • 2008
  • A parasitological investigation on trematode metacercariae was made on 62 freshwater fishes of 13 species in northern Thailand; Cyclocheilichthys apogon, Puntioplites proctozysron, Labiobarbus siamensis, Barbodes gonionotus, Barbodes altus, Henicorhynchus siamensis, Osteochilus hasselti, Notopterus notopterus, Mystacoleucus marginatus, Anabas testudineus, Systomus orphoides, Morulius chrysophykadian, and Hampala macrolepidota. The fish were caught over the summer period (February-May 2007) from 2 Chiang Mai water reservoirs, i.e., the Mae Ngad (UTM 47Q E 503200, 47Q N 2119300) and the Mae Kuang Udomtara (UTM 47Q E 513000, 47Q N 2092600) Reservoirs in Chiang Mai province, Thailand. The prevalence of heterophyid (Haplorchis taichui and Haplorchoides sp.) metacercariae in these fish was 83.9% and 74.2% in the Mae Ngad and Mae Kuang Udomtara Reservoirs, respectively. The highest intensity of heterophyid metacercariae in H. siamensis in the Mae Ngad was 120.4 and that in P. proctozysron in the Mae Kuang Udomtara was 180.0. The fish, A. testudineus, C. apogon, and M. chrysophykadian, were not found to be infected with H. taichui metacercariae. The results show that the freshwater fish in Chiang Mai water reservoirs are heavily infected with H. taichui and Haplorchoides sp. metacercariae.

Firm Characteristics and Modes of University-Industry Collaboration: Cases of Japan and Thailand

  • Pittayasophon, Siriporn;Intarakumnerd, Patarapong;Sumikura, Koichi;Saito, Hiromi;Suzuki, Jun
    • STI Policy Review
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    • 제7권1호
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    • pp.17-39
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    • 2016
  • Despite the importance of university-industry collaboration, issues pertaining to the characteristics of collaborating firms, their modes of interaction, and the relationship between these modes and outcomes are not well-researched. The impact of country's development on these issues is also unclear. This case study examines Japan and Thailand-respectively representing developed and developing countries-and features the following key findings: 1) the characteristics of firms affect modes, with large Japanese firms being more collaborative with universities, whereas Thai SMEs significantly collaborate more with universities; 2) the relationship between modes in Thai firms is stronger than those of Japanese firms because in Thailand, perhaps due to weak technological capacity, R&D collaboration is conducted alongside university consultancy services; and 3) in Japan, R&D and human resource development collaboration lead to product innovation, whereas different outcomes are expected from different modes in Thailand. Apparently, trivial informal collaborations do have significant impact on innovation.

태국 중부지역의 열대 담수어류상 (Tropical Freshwater Fish Fauna of Central Thailand)

  • 최준길;최재석
    • Animal Systematics, Evolution and Diversity
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    • 제21권2호
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    • pp.207-217
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    • 2005
  • 2000년부터 2004년까지 태국 (Thailand) 중부지역의 4개 수역인 Eastern, Chao Phraya, Peninsular, Maeklong 수계를 흐르는 하천에서 어류상 조사를 실시하였다. 160개 조사지점에 대하여 어류상조사를 실시한 결과 총 28과 124종이 확인되었다. Eastern과 Peninsular수역에서 각각 33종, 42종이 출현하였고 Chao Phraya와 Maeklong수역에서 52종과 91종이 확인되었다 4개 수역에서 모두 출현한 종은 Brachydanio albolineatus, Rasbora paviei, Systomus binotatus, Homaloptera smithi, Monopterus albus, Macrognathus circumcintus, Channa gaucha 등 7종이었다.

해외 조림투자 환경과 수익성 분석에 관한 연구 - 태국을 중심으로 - (Surroundings and Benefit Analysis on Overseas Planting Investment - Case Study on Thailand -)

  • 우종춘;서영완
    • Journal of Forest and Environmental Science
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    • 제18권1호
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    • pp.61-72
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    • 2001
  • 본 연구는 해외조림을 통한 목재의 안정적 확보를 기하기 위하여 태국을 대상으로 투자환경과 수익성 분석을 하였다. 연구결과 태국은 정책적으로 산림률을 현재 25%에서 40%로 유지하려고 노력하고 있기 때문에 조림을 널리 장려하고 있으며, 조림과 목가공산업(합판, 베니어, Chip board, Hard board)은 최소한의 투자요건을 요구하는 업종으로 구분하고 있어 다른 분야보다 상대적으로 유리한 입장이다. 태국에서 현재 가장 역점을 두고 있는 조림수종은 유칼리로서 특히 펄프용으로 이용할 경우 유칼리의 벌기령은 4~5년으로서 매우 짧고 IRR도 29.1~59.3%로 매우 높게 나타났다.

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Prevalence of OV Infection in Yasothon Province, Northeast Thailand

  • Saengsawang, Phubet;Promthet, Supannee;Bradshaw, Peter
    • Asian Pacific Journal of Cancer Prevention
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    • 제13권7호
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    • pp.3399-3402
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    • 2012
  • A liver fluke, Opisthorchis viverrrini (OV), is the major cause of the high incidence of cholangiocarcinoma in Thailand. The prevalence of OV infection remains high in various parts of the country, especially in Northeast Thailand and particularly in wetland rural areas where a large proportion of the community work in agriculture and continue the traditional practice of eating raw or uncooked cyprinoid fish products. The national control program seems to have had little impact in many of these areas, and it has been difficult to make precise assessments of the overall effectiveness of the program. This paper is the first report of prospective research project designed to monitor the impact of the national control program in rural communities located in a northeastern province and at high risk of OV infection. The participants in this initial survey were 1,569 villagers, aged 20-65 years, living in two subdistricts of Yasothon Province. Stool examinations showed that 38.68% were infected with OV. Males were slightly more likely to be infected than females, but the difference was not statistically significant. Infection was found to be positively associated with age in both males and females. The preliminary data indicate that the population selected for study is suitable for the purpose of the monitoring project.

Houttuynia cordata Thunb Fraction Induces Human Leukemic Molt-4 Cell Apoptosis through the Endoplasmic Reticulum Stress Pathway

  • Prommaban, Adchara;Kodchakorn, Kanchanok;Kongtawelert, Prachya;Banjerdpongchai, Ratana
    • Asian Pacific Journal of Cancer Prevention
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    • 제13권5호
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    • pp.1977-1981
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    • 2012
  • Houttuynia cordata Thunb (HCT) is a native herb found in Southeast Asia which features various pharmacological activities against allergy, inflammation, viral and bacterial infection, and cancer. The aims of this study were to determine the cytotoxic effect of 6 fractions obtained from silica gel column chromatography of alcoholic HCT extract on human leukemic Molt-4 cells and demonstrate mechanisms of cell death. Six HCT fractions were cytotoxic to human lymphoblastic leukemic Molt-4 cells in a dose-dependent manner by MTT assay, fraction 4 exerting the greatest effects. Treatment with $IC_{50}$ of HCT fraction 4 significantly induced Molt-4 apoptosis detected by annexinV-FITC/propidium iodide for externalization of phosphatidylserine to the outer layer of cell membrane. The mitochondrial transmembrane potential was reduced in HCT fraction 4-treated Molt-4 cells. Moreover, decreased expression of Bcl-xl and increased levels of Smac/Diablo, Bax and GRP78 proteins were noted on immunoblotting. In conclusion, HCT fraction 4 induces Molt-4 apoptosis cell through an endoplasmic reticulum stress pathway.

Quantitative Analysis of Poverty Indicators: The Case of Khon Kaen Province, Thailand

  • PIENKHUNTOD, Ajirapa;AMORNBUNCHORNVEI, Chainarong;NANTHARATH, Phouthakannha
    • The Journal of Asian Finance, Economics and Business
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    • 제7권2호
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    • pp.131-141
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    • 2020
  • This study examines the poverty indicators in Northeast region of Thailand by adopting the global Multidimensional Poverty Index (MPI) methodology and the national survey of Minimum Basic Needs (MBN) of Thailand. Data are collected from three different districts in Khon Kaen province namely: Khok Po Chai, Sam Sung, and Nam Pong. The sample size is 187 households. Data analysis uses Ordinary Least Square (OLS) regression approach and includes 7 dimensions of poverty (health, environment, education, economy, Thai value, asset? empowerment, and digital literacy) with a total of 41 indicators. This study has found that poverty indicators in Khon Kaen province remains centered around the aspects of health and employment dimensions. While a change of family structure in the Thai society since 1960s reduces the family size, household saving substantially increases over the years. The effects of health dimension in poverty, on the other hand, appears on the other poverty dimension of Thai value, which include (1) a bad living habit of head of household (smoke or alcohol consumption) that links with illness and disease, (2) religious practice, and (3) chronic illness. Lastly, there are income gaps of different careers in the area, which suggests the issue of income inequality.

Causal Factors Affecting Mobile Banking Services Acceptance by Customers in Thailand

  • NAVAVONGSATHIAN, Ampol;VONGCHAVALITKUL, Busaya;LIMSARUN, Tanakorn
    • The Journal of Asian Finance, Economics and Business
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    • 제7권11호
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    • pp.421-428
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    • 2020
  • The study investigates the causal factors affecting mobile banking services acceptance by customers in Thailand. This study employs quantitative research methodology and non-probability sampling to draw 400 mobile banking users from the population who are the mobile banking users of commercial banks in Thailand. The online questionnaires were used as a research tool to collect data with the Cronbach's alpha coefficient as 0.931. By using the structural equation model to analyze data, the results have shown that service quality, perceived usefulness, perceived ease-of-use, safety in use, and social factors influenced mobile banking services acceptance by customers in Thailand.By checking the harmony with the statistics χ2 = 108.618, df. = 86, χ2/df. = 1.263, p-value = .050, CMIN/DF =1.263, GFI = .989, AGFI=.962, TLI= .962, CFI = .976, RMSEA = .037,along with testing the weight factor. In conclusion, the research model was found to be harmonious with the empirical data at the significance level 0.05. The findings of this study suggest that the commercial banks should apply this research to understand the acceptance behavior of mobile banking users, also to determining marketing strategies, identifying opportunities and creating a competitive advantage for their services in the future.

The V-Shaped Disposition Effect in the Stock Exchange of Thailand

  • WAIYASARA, Kunthorn;PADUNGSAKSAWASDI, Chaiyuth
    • The Journal of Asian Finance, Economics and Business
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    • 제7권11호
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    • pp.55-65
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    • 2020
  • The objective of this study is to investigate how investors in the Stock Exchange of Thailand practically trade in response to a magnitude of profits and losses, given a discussion of the widely well-known behavioral explanation, so called as the disposition effect. We provide empirical evidence of an existence of the V-shaped disposition effect, which has been recently found in several advanced equity markets. By adopting the methodology suggested by An's (2016) and Fama and Macbeth (1973), we document that stock return patterns in relation to aggregate unrealized gains and losses of investors are consistent with the V-shaped selling schedule, given an increase in unrealized gains and losses over the period of January 1996 to December 2015. The effect of unrealized gains is stronger than that of unrealized losses and this asymmetry underlies the existence of the V-shaped disposition effect in the Thai equity market. Interestingly, the effect of the V-shaped selling schedule is strongest over the short-term holding time horizon. Last but not the least, stocks for which investors have large unrealized gains and losses outperform in the following month and the long-short trading strategy, based on this premise, generates the average 1.7% monthly (equivalent to 20.0% per year) abnormal return.