67 research outputs found

    Estimating Damaged Volume of Historic Pagodas in Bagan after Earthquake using 3D Hough Transform

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    On 24th August 2016, the magnitude of a 6.8 earthquake struck in Bagan from the depth of 52 miles. This earthquake caused much damage in historic pagodas in Bagan, one of the archeological houses in Asia. Analyzing the affected areas is an essential task for the restoration and reconstruction of historic buildings after a disaster. Traditional methods of detecting damage to buildings focus on detecting 2D changes (i.e., only the appearance of the image), but the 2D information provided by the image is not sufficient when it involves detecting damage to buildings is often not precise. For finding out the solution, a method of 3D change detection is needed for estimating the volumes of damaged pagodas after the earthquake. The proposed system aims at producing a quick assessment of the damaged pagodas accurately and correctly. This system estimates the damaged volume of the pagoda based on the nature of the 3D point clouds. Post-earthquake photos are taken using an anonymous aircraft (UAV) and point cloud data is generated using VisualSFM software. The 3D Hough transform is used to find the intersection of the tower vertex and the 3D vertex at the line boundary. Besides, the proposed system can detect the reformed structure of the entire pagoda. The results show that the proposed approach facilitates the automated 3D detection of damaged pagodas and is a time-saving method for estimating the volume of damage caused to precious historic pagodas after a disaster

    Effect of leucaena forage and silage substitution in concentrates on digestibility, nitrogen utilization and milk yield in dairy cows

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    This experiment was conducted to determine the effect of feeding leucaena forage and silage substitution in concentrate on the performances of dairy cows. Nine cross-bred Holstein Friesian cows (410±12kg) in the 12th week of lactation were randomly allocated to one of three treatment groups with three replicates/treatments in a completely randomized design. The three treatments were control diet without substitution of leucaena forage and silage (DLFS0), diet with substitution of leucaena forage 10% (DLF10) and diet with substitution of leucaena silage 10% (DLS10). Cows were fed treatments for 60 days. Although nutrient intakes were not significantly different (p>0.05) each other, digestibility of DLFS0 was significantly higher (p<0.05) than others. Conversely, nitrogen utilization and average milk yield of cows offered DLFS0 were significantly lower (p<0.05) than those of cows fed on DLF10 and DLS10. The highest feed cost (p<0.05) per kg of milk was found in DLFS0 and the lowest cost was observed in DLF10. Therefore, although the leucana forage and silage could be substitute up to 10% of concentrates without adverse effects on the performances of dairy cows, the substitution of leucaena forage gave the better performances than that of leucaena silage

    Development of Leucaena Mimosine-Degrading Bacteria in the Rumen of Sheep in Myanmar

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    Myanmar has an agricultural base, and about 70% of people reside in rural areas. They depend for survival on agriculture and small-scale crop production, with ruminant livestock consuming fibrous agricultural residues. For optimal ruminant production, concentrates are needed as supplements to these residues. As concentrates are expensive, researchers are testing alternative protein sources like legumes, including foliage from leguminous trees such as leucaena (Leucaena leucocephala). Leucaena is the most widely used leguminous tree as a ruminant feed because it is rich in protein (~ 22%) and contains easily digestible fibre (23% neutral detergent fibre, 16.6% acid detergent fibre; Ni Ni Maw 2004). Khin Htay Myint (2005) noted that 25% of leucaena in the ration tended to increase nitrogen retention without decreasing dry matter and organic matter digestibilities. However, leucaena leaves contain a toxic non-protein amino acid, called mimosine. Research workers have endeavoured to reduce mimosine toxicity in animals fed leucaena in Myanmar (Aung Aung 2007, Wink Phyo Thu 2010) and one avenue of research was the development of mimosine-degrading bacteria in the rumen of sheep fed leucaena. In this paper we describe an experiment tracing the development of mimosine-degrading bacteria in the rumen of sheep

    Development of Double Haploid Lines from F1 Cross of Yar-8 x Thee Htat Yin Genotypes through Anther Culture

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    Anther culture has become a powerful technique for the rapid production of double haploid lines in crop breeding program. The objectives of this experiment were to examine the callusing and green plant regeneration ability of parents (Yar -8 and Thee Htat Yin) and their F1, and to develop the double haploid lines from the cross of Yar-8 and Thee Htat Yin genotypes. Nitsch and Nitsch (N6) medium with 2 mg.L-12, 4-Dichlorophenoxyacetic acid and 0.5 mg.L-1 kinetin was used for callus induction and Murashige and Skoog (MS) medium with 1 mg.L-1 Naphthalene acetic acid, 1 mg.L-1 Indole 3-acetic acid, 1 mg.L-1 Indole 3-butric acid, and 2 mg.L-1 kinetin was used for green plant regeneration. Callus induction was successfully observed in both parents and their F1. Plant regeneration from regenerated callus was dependent on the genotypes. Only Yar-8 and F1 progenies produced green plants as well as albino plants. Out of total 14 plants, 10 plants were double haploid (DH) plants. These double haploid lines (DH) could be done further evaluation to develop improved rice lines in Myanmar

    Evaluation on dry forage yields and nutritional characteristics of introduced herbaceous legumes in Myanmar

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    The study was carried out to evaluate the forage yields, nutritive values and in vitro fermentation parameters of herbaceous legumes. Five varieties of introduced herbaceous legumes; Stylosanthes guianensis cv. Ubon stylo, Macrotyloma axillare cv. Archer, Centrosema brasilianum cv. Ooloo, Stylosanthes guianensis cv. Stylo 184 and Macroptilum bracteatum cv. Cadarga were evaluated at the research farm, University of Veterinary Science, Yezin, Myanmar. No fertilizer and no irrigation were applied for cultivation to test drought resistance. Dry forage yield, nutritive values and gas production at four harvesting times were measured with 4×5 factorial arrangement (5 legumes and 4 harvesting time) in randomized complete block design. There was no interaction between legumes and harvesting time on forage yield, nutritive values and fermentation parameters but they were affected by the main effects of legume types and harvesting time. Among the legume forages, the highest dry forage yields were found in Ooloo, Ubon stylo, and Stylo 184, and followed by the DM yield of Archer and Cadarga. The DM yield of the second harvest was significantly higher (p<0.05) than those of the first, third and fourth harvest which were not significantly different from each other. As a chemical composition, the DM content of Archer was lower (p<0.05) than those of other varieties. Among the legumes forages, the lower CP content was found in Cadarga. The higher NDF was observed in Ooloo. Ooloo, Ubon stylo and Cadarga showed higher ADF in comparison with the other two varieties. Among the harvesting time, the lowest DM content was found at the first harvest. The highest CP content was found at third harvest. The NDF content was not significantly different. The lowest ADF content was found in fourth harvest. According to the dry forage yield, Ubon stylo and Ooloo had the highest dry forage yield and in term of nutritive values, Stylo 184 and Archer had higher nutritive values. As the main effect of forages, Stylo 184 and Archer had higher gas production in comparison with the other varieties. As the main effect of harvesting time, the fourth harvest had the highest gas production in comparison with other harvesting time. It could be better for cultivation by application of fertilizer and irrigation to get more forage yield and quality. &nbsp

    Integrated Water Resources Management in Myanmar. Water usage and introduction to water quality criteria for lakes and rivers in Myanmar. Preliminary report.

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    The purpose of the report is to present some first recommendation for the development of Myanmar ecological quality criteria using the system of the EU Water Framework Directive (EU WFD) as baseline, with main focus on the characterization and classification processes. As background for the recommendations we first give an overview of the main water use categories in Myanmar. We then provide preliminary suggestions for typology criteria and indices for assessing ecological status in lakes and rivers in Myanmar. The typology factors and physico-chemical parameters are based on common used factors in the EU countries. The biological elements include phytoplankton and aquatic macrophytes for lakes, and benthic invertebrates for rivers. In this first phase we present the official and intercalibrated Norwegian indices and boundaries, and some additional indices.Ministry of Environmental Conservation and Forestry, Myanmar; Norwegian Ministry of Foreign Affairs, NorwaypublishedVersio

    Export Performance In Cambodia, Laos, Myanmar And Vietnam (CLMV) Countries : Panel Data Analysis

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    Cambodia, Laos, Myanmar and Vietnam (CLMV) countries endeavour to increase the country's foreign exchange earnings by export performance. This study aims to identify the macroeconomic determinants of export performance of CLMV countries from the period of 2000 to 2015. This study adopted panel unit roots test, panel co-integration test and Pooled-mean group (PMG) method for testing and estimating purpose. Empirical findings show that the determinants of export performance are inflation, gross domestic and foreign direct investment, where there are positively associated with export performance of CLMV countries while the interest rate and exchange rate cannot influence the export performance in long run

    Evaluation of Tropical Herbaceous Legumes for Drought Resistance in Myanmar

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    Animal nutrition systems in the tropical and subtropical countries utilize a wide range of feedstuffs, mainly the crops and agricultural by-products, grasses, legumes, trees and shrubs. During the dry season, the crude protein concentration in the native grasses can drop below 3% crude protein (Atta-Krah and Reynolds, 1989). Fodder tree is not sufficient and is of low quality in Myanmar (Myo and Aye, 2007). Shrubs represent an enormous potential source of protein for ruminants in the tropics (Devendra, 1992). Browses are rich in nitrogen and minerals which are low in other conventional feeds of tropical regions. Herbaceous legume species play an important role in feeding ruminants worldwide. Herbaceous forage legume have been identified as potential protein supplements for ruminants since they contain high crude protein, minerals and vitamins needed for the growth of ruminal microbes (Norton and Poppi,1995). Herbaceous legumes can be grown as a relay within cereal crops or as a rotation with cereals. Herbaceous legumes can access ‎atmospheric ‎N‎ (‘fixation’)‎ through‎ bacterial‎ activity‎ in‎ root ‎nodules.‎ The‎ ‘fixed’ ‎N‎ becomes‎ available ‎to‎ the‎ legume and subsequent cereal crops. Herbaceous legumes are best planted from seed (Nulik et al., 2013). The aim of using herbaceous legumes in cropping systems is to increase animal productivity, particularly live weight gain in animals being prepared for market. Herbaceous legumes may be fed directly to animals as fresh material in the late wet and early dry seasons, with browse or tree legumes retained for later dry season feeding, or stored as hay and fed in the late dry or early wet seasons when the availability and quality of local feed is lower (Nulik et al., 2013). Legume based pastures give high individual animal performance for growth, fattening, reproduction and wool growth. Cattle live weight gain has been related positively to the proportion of legume in the sward (Mureithi et al., 1995). As pastures become mature, they are characterized by high content of fibre with a higher grade of lignifications and low protein content (Enoh et al., 2005). In Myanmar there is only 0.35% cultivated pasture area to that of cultivated acreages. The improvement and development of pasture is a necessity for Myanmar (Myo and Aye, 2007). For that reason it is needed to evaluate the yield herbaceous legumes for the potential use for ruminants in Myanmar

    Selection of Suitable Varieties of Grasses for Myanmar

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    The basal feed resources for ruminants available in most developing countries in the tropics are crop residues, pasture from infertile land, for example communal land, or agro-industrial by-products. These are low in protein and of low digestibility. A major problem facing livestock producers in tropical areas is proper nutrition for their animals during the dry season when pastures, cereal residues and maize stover are limiting in nutritional quality. The researchers in Myanmar have tried to improve the nutritive value of fibrous agricultural residues. Aung Aung et al. (2006) supplemented the sesame and chickpea husk to bulls fed on urea-treated rice straw. One way of improving the utilisation of such crop residues is by proper supplementation with leguminous forages (Poppi and McLennan 1995). In most regions of Myanmar, the green forage is available during the rainfall and become shortage during dry season. Therefore, feedstuff for ruminant animals mainly has to depend upon the availability of agricultural by-products. Almost more than half of the livestock population of Myanmar is inhabited in dry zone and thus, to overcome the scarcity of the feedstuff during summer, the irrigation system was introduced in these areas for the development of agriculture. A simple and effective way to increase livestock production is to grow improved pastures. Throughout Myanmar, extensive areas of idle land could grow excellent pasture. At present, most of the “pastures” consist of low rank, poor quality grasses and a limited range of edible shrubs. During prolonged dry periods, grazing animals subsist on dry mature roughage of poor quality (Myo Kywe and Tin Mg Aye, 2007). Grass species, which can rapidly grow after the rain also having drought tolerance, would be very useful in the production system. There is still little information on the use of forage in Myanmar. It is needed to select the grass species which have drought resistance in Myanmar and thus this experiment was conducted to evaluate a range of introduced tropical grasses in the central dry zone of Myanmar

    Artesunate/dihydroartemisinin pharmacokinetics in acute falciparum malaria in pregnancy: absorption, bioavailability, disposition and disease effects

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    AIM: To determine if reported lower plasma concentrations of artemisinin derivatives for malaria in pregnancy result from reduced oral bioavailability, expanded volume of distribution or increased clearance. METHODS: In a sequentially assigned crossover treatment study, pregnant women with uncomplicated falciparum malaria received i.v. artesunate (i.v. ARS) (4mgkg(-1) ) on the first day and oral ARS (4mgkg(-1) ) on the second, or, oral on the first and i.v. on the second, in both groups followed by oral ARS (4mgkg(-1) day(-1) ) for 5 days. Plasma concentrations of ARS and dihyroartemisinin (DHA) were measured by liquid chromatography-mass-spectrometry on days 0, 1, 2 and 6. Controls were the same women restudied when healthy (3 months post partum). RESULTS: I.v. ARS administration resulted in similar ARS and DHA pharmacokinetics in pregnant women with malaria (n= 20) and in controls (n= 14). Oral administration resulted in higher total drug exposure in pregnancy [AUC (95% CI) in (ngml(-1) h)/(mgkg(-1) )] of 55.1 (30.1, 100.0) vs. 26.5 (12.2, 54.3) for ARS, P= 0.002 and 673 (386, 1130) vs. 523 (351, 724) for DHA, P= 0.007. The corresponding median absolute oral bioavailability (F%) was 21.7 (12.6, 75.1) vs. 9.9 (6.0, 36.81) for ARS (P= 0.046) and 77.0 (42.2, 129) vs. 72.7 (42.0, 87.7) for DHA, P= 0.033. Total DHA exposure was lower at day 6 in pregnant women with malaria (P < 0.001) compared with day 0 or 1, but not in the controls (P= 0.084). CONCLUSIONS: This study demonstrates the effects of malaria on oral ARS drug disposition are greater than those of pregnancy. This probably results from a disease related reduction in first pass metabolism. The data are reassuring regarding current dosing recommendations
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