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Warasan Witthayasat Lae Theknoloyi Mahawitthayalai Mahasarakham
ISSN 1686-9664 · Mahasarakham University · 120 artikel di indeks
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Use of Bacillus sp. and Streptomyces sp. for biological control of some plant pathogens
Plant parasitic fungi are major problem in agriculture that affect yield and quality of agricultural products. In this study, antagonistic effects of Streptomyces sp. and Bacillus sp. were evaluated against plant parasitic fungi Bipolaris oryzae DOAC 1760, Aspergillus flavus TISTR 3366…
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Isolation of lactic acid bacteria with probiotic potential from fermented foods
Many strains of lactic acid bacteria (LAB) have probiotic properties that can promote consumers’ health. This study aims to find LAB having probiotic properties. Ten isolates of LAB isolated from fermented foods including Nham, PlaSom and fermented vegetables were tested for their tolerance to acid…
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Bioactive Compounds, Antioxidant and α-Glucosidase Inhibitory Activities from Ethanolic Extracts of Tot Mu Tot Ma(Paederia linearis Hook.f.)
The aims of this work were to study bioactive compounds, antioxidant and alpha glucosidase inhibitory activites of Tot Mu Tot Ma (Paederia linearis) in crude extracts of root, stem and leaf. The maceration method was used with ethanol as solvent. Bioactive compounds in the phytochemical screening…
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Optimal conditions for the preparation of egg white particles by solvent emulsification-diffusion method
The objective of this work is to optimize the preparation conditions of egg white particles by a solvent emulsification-diffusion method. The concentration of egg white was adjusted to 1, 2, 3, 4 and 5% (w/v), respectively, and the ratio of the water phase (egg white solution) to oil phase (ethyl…
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The Application of HEC-HMS and HEC-RAS Mathematical Models for Study of Flood Mitigation in Cha-Uat, Nakhon Si Thammarat
This article presents flooding simulation and flooding alleviation measures of Cha-Uat Municipality, Cha-Uat District, Nakhon Si Thammarat. HEC-HMS and HEC-RAS were applied to determine runoff and simulate flooding events in the study area. The results of the HEC-HMS model’s calibration (2005) and…
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Possible Earthquake Prediction In Thailand with Artificial Neural Network models
Earthquake prediction with artificial neural network model (ANN) has never been studied in Thailand before. However, after searching research article from an international database, it has been found that there is a possibility of using the ANN model to predict earthquake in other countries…
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Information Analysis for TCAS Support System Development of Mahasarakham University
Thai University Central Admission System (TCAS) is an educational reform policy embracing three main principles;including, 1) students are required to attend classroom until the completion of the upper secondary education (Matthayom6), 2) each student possessed one right on the courses selected on…
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Performance study of input devices for generating writing with drawing tasks in written exams-a comparison between handwriting and typing devices
Examinations are an assessment and evaluation tool at University. They can be performed using different types of input devices to complete them. This study investigated whether using digital input devices affects muscle activation than a traditional input instrument. We monitored the…
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Influence of Vanadium on Two-body Abrasive Wear Resistance of 16%Cr - 2%Mo Cast Iron
In this research, the two-body-type abrasive wear resistance of heat-treated 16wt% Cr - 2wt% Mo (as shown by %) with 0 - 3%V cast iron was investigated. The test specimens were annealed at 900oC for 3 h and cooled in a furnace. The annealed specimens were held at 1000oC for 1.5 h and hardened by…
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Karyotypic Study of Taylor’s Stream Frog (Limnonectes taylori) in Chiang Mai, Thailand
This study analyzed the karyotype and idiogram of Taylor’s stream frog (Limnonectes taylori) collected from Chiang Mai Province in Northern Thailand. A mitotic chromosome preparation from bone marrow was obtained by direct method. Chromosomes were stained by conventional staining technique with 20%…
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Distribution of alcohol outlets around educational institutes in Chon Buri province
The objectives of this research were to explore and analyze density and distribution of alcohol outlets that were located at 300 and 500 meters around educational institutes in Muang district, Chon Buri province. The results revealed that there were 33 of secondary and high schools, and 15…
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Rheology of Linear Viscoelastic Materials
This article shows the relationship between stress and strain of a generalized linear viscoelastic material. From a well-known Maxwell constitute equation, a model that contains a spring and a dashpot connected in series, a linear viscoelastic model is further generalized by improving the model…
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Fuzzy Weak Hyper Filters of Hyper BE-Algebras
The aim of this work is to introduce the notion of fuzzy weak hyper filters in hyper BE-algebras and investigate some of their properties. This research shows that the set of all fuzzy weak hyper filters of hyper BE-algebras is a distributive complete lattice. Also, the concepts of Noetherian hyper…
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Efficacy of Streptomyces sp. Isolate SRF1 to Control the Fungus Pestalotiopsis spp., Causal Agentof MangoLeaf Spot
Pestalotiopsis spp. is a causal agent of leaf spot of many fruits and economic crops, especially mango. In addition, this fungal pathogen causes production yield losses. The purpose of this study was to evaluate the antifungal efficacy of Streptomyces sp. SRF1 against 10 isolates of Pestalotiopsis…
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An Analysis of Water Network Employed by Graph Theory-based Centrality: A Case Study of Flood Risk Areas in Chanthabur Province
The objectives of this research were to explore stream data and to analyze flood risk areas in Chanthaburi in order to gain useful information for local agencies in Chanthaburi to make plans to deal with such problems. This research focused on the sources or ends of streams, points where streams…
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Feature improvement for classification of face images under varying light conditions using a hybird algorithm
Image improvement is an important process for enhancing the quality of facial images under varying light condition in which shadow and light affects the performance of feature extraction and face recognition. This research proposed the development of image normalization for illumination, such as…
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A Newly Developed Gas Bubble Counter using Raspberry Pi Controller for Fermentation Process
This research developed a gas bubble counter in which the Arduino mega 2560 controller was changied to the Raspberry Pi3 model B controller. A Photo sensor was also installed in order to provide highly accurate counts at high rate of the number of carbon dioxide gas bubbles generated from the…
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Karyotypic Study of Male Predaceous Spear-headed Katydid (Palaeoagraeciabrunnea) and Male Bluish-green Rice Grasshopper (Hieroglyphus banian) in Northern Thailand
Karyotypic and idiogram studies were preformed using male predaceous spear-headed katydid, Palaeoagraecia brunnea (Ingrisch, 1998), and male bluish-green rice grasshopper, Hieroglyphus banian (Fabricius, 1798), collected from Lamphun and Chiang Mai provinces in Northern Thailand . The mitotic…
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Physicochemical properties of Wood Vinegar from Neem trees, Eucalyptus trees, Corn trees, and Mango leaves
This experimental research aimed to study physicochemical properties of wood vinegar from neem trees, eucalyptus trees, corn trees, and mango leaves which was produced by burning in a 200 liter flat tank and chemical components identified by Gas Chromatography – Mass Spectrometry. The results…
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Comparison Between Antifungal Activitiesof Xenorhabdus stockiae PB09 Cell-free Supernatants Derivedfrom Shake-Flask CultivationandFermentation
A varietyof metabolites from the entomopathogenic bacterium Xenorhabdus spp. have been reported to have antifungal activities, especially against Colletotrichum gloeosporioides (Penz.) Sacc., which is one of the most damaging pathogens targeting many tropical fruit plants by causing anthracnose…