Browsing Faculty of Science by Title
Now showing items 318-337 of 1231
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On 4 - r c - critical graphs with cut-vertices
Collection: Theses (Master's degree) - Mathematics / วิทยานิพนธ์ – คณิตศาสตร์Type: Thesis(มหาวิทยาลัยศิลปากร, 2011) -
On 4-1/2 critical graphs with cut-vertices
Collection: Theses (Master's degree) - Mathematics / วิทยานิพนธ์ – คณิตศาสตร์Type: Thesis(มหาวิทยาลัยศิลปากร, 2010) -
Pasting Lemmas for Generalized Metric-Preserving Functions
Collection: Theses (Master's degree) - Mathematics / วิทยานิพนธ์ – คณิตศาสตร์Type: Thesis(Silpakorn University, 26/11/2021) -
PERFORMANCE AND MODELING OF SOLAR VAPOR COMPRESSION REFRIGERATION SYSTEMS FOR COOLING FRUITS, VEGETABLES, AND BEVERAGES UNDER A THAI ENVIRONMENT
Collection: Theses (Ph.D) - Physics / ดุษฎีนิพนธ์ - ฟิสิกส์Type: Thesis(Silpakorn University, 4/7/2023)In this research work, performances of an Auto-Regressive with eXogeneous variables (ARX) and Artificial Neural Network (ANN) were compared. It was found that the ARX outperformed the ANN in predicting load temperature of ... -
Performance comparisons of LASSO methods for parameter estimation in high dimensional linear regression
Collection: Theses (Master's degree) - Applied Statistics / วิทยานิพนธ์ – สถิติประยุกต์Type: Thesis(Silpakorn University, 12/7/2019)Penalized linear regression analysis is one of the widely used methods to estimate the parameters in high-dimensional data. The differences of parameters estimation in penalized linear regression are based on the penalty ... -
PERSONAL IDENTIFICATION BY USING PORE
Collection: Theses (Master's degree) - Forensic Science / วิทยานิพนธ์ – นิติวิทยาศาสตร์Type: Thesis(Silpakorn University, 28/6/2024)The aims to study the pore in Thai, Burmese, and Cambodian volunteers on males and females aged between 20 and 60 years old. The area of the right thumb, left thumb, right index, and left index, right palms and left palms ... -
Physical and magnetic characterization of magnetic force microscopy tips
Collection: Theses (Master's degree) - Physics / วิทยานิพนธ์ – ฟิสิกส์Type: Thesis(Silpakorn University, 12/7/2019)A conventional magnetic force microscopy (MFM) technique is usually employed to image magnetic domains and patterns of ferromagnetic materials. This requires MFM probes that have an ultrahigh resolution for imaging small ... -
PHYTOCHEMICAL SCREENING, ANTIOXIDANT AND PURIFICATION COMPOUND OF CANNABIS FOR FORENSIC SCIENCE
Collection: Theses (Master's degree) - Forensic Science / วิทยานิพนธ์ – นิติวิทยาศาสตร์Type: Thesis(Silpakorn University, 1/7/2022)The objectives of this research were to study of phytochemicals and antioxidant activity of cannabis crude extract. The results showed that the following phytochemicals were found in cannabis crude extracts: Terpenoids ... -
Potential probiotic lactic acid bacteria and their anti-proliferative effects on Caco-2 cells
Collection: Theses (Master's degree) - Micro Biology / วิทยานิพนธ์ – จุลชีววิทยาType: Thesis(Silpakorn University, 4/7/2023)Lactic acid bacteria are the most widely used probiotics in fermented dairy products and foods. Since probiotics play an important role in human health promotion and disease prevention. In this study, the first aim was to ... -
Prebiotic properties of polysaccharides from Schizophyllum commune
Collection: Theses (Master's degree) - Micro Biology / วิทยานิพนธ์ – จุลชีววิทยาType: Thesis(Silpakorn University, 25/11/2022)Polysaccharide was extracted from the fruiting body, mycelium, mycelium from spent mushroom substrate of split gills mushroom, schizophyllum commune, and rubber wood sawdust by hot water and precipitated by methanal and ... -
Prediction of stature and sex from dimensions of Clavicle, Thoracic Vertebrae 6th-12th and Lumbar Vertebrae 1st-4th in Thai population using data mining techniques
Collection: Theses (Master's degree) - Forensic Science / วิทยานิพนธ์ – นิติวิทยาศาสตร์Type: Thesis(Silpakorn University, 12/7/2019)The purposes of this research is to 1) to predict the stature and sex from dimensions of Clavicle, Thoracic vertebrae 6th-12th and Lumbar vertebrae 1st-4th in Thai population using the Damining technique. 2) to predict ... -
Preliminary development of low-cost instrument for measuring solar ultraviolet radiation.
Collection: Theses (Master's degree) - Physics / วิทยานิพนธ์ – ฟิสิกส์Type: Thesis(Silpakorn University, 12/7/2019)In this work, a low-cost and modirately, accurate portable device for measuring solar ultraviolet radiation (UV) was developed at Silpakorn University in Nakhon Pathom (13.82ºN, 100.04ºE). The aim of the development of ... -
A Preliminary Study of Atmospheric Water Vapour in Thailand
Collection: Theses (Master's degree) - Physics / วิทยานิพนธ์ – ฟิสิกส์Type: Thesis(Silpakorn University, 12/7/2019)In this work, a preliminary study of atmospheric water vapour in Thailand was carried out. The work consists of two parts. The first part was the development of a model for estimating precipitable water and the second ... -
Preparation and applications of trimethylsilyl cellulose from various plant fibers
Collection: Theses (Master's degree) - Chemistry / วิทยานิพนธ์ - เคมีType: Thesis(Silpakorn University, 26/11/2021)Agricultural waste is a good source of cellulose which can be easily extracted by a strong base. In this research, corn husks (CH), corn silk (CS), coconut meat residue (CMR), and pineapple core (PC) were treated with 4% ... -
PREPARATION OF LAKE PIGMENT FROM ORCHID USING ADSORPTION METHOD
Collection: Theses (Master's degree) - Chemical Studies / วิทยานิพนธ์ - เคมีศึกษาType: Thesis(Silpakorn University, 24/11/2023)Orchid flowers are an economically important plant in Thailand with significant potential for export to neighboring countries and abroad. However, during certain seasons when Orchid flowers bloom simultaneously, it leads ... -
Preparation of Lake Pigment from Sappanwood using Adsorption Method
Collection: Theses (Master's degree) - Chemical Studies / วิทยานิพนธ์ - เคมีศึกษาType: Thesis(Silpakorn University, 17/8/2018)Sappanwood (Caesalpiniasappan), is natural dye containing red pigment named “brazilin”. Brazilin can be oxidized to “brazilein” yielding red color. Generally, brazilein extract or pure brazilein are used in textile and ... -
Preparation of Nanofibers form Rice Straw and Their Composite Poly (Vinyl Alcohol) Films
Collection: Theses (Master's degree) - Chemical Studies / วิทยานิพนธ์ - เคมีศึกษาType: Thesis(Silpakorn University, 10/7/2020)In this research, nanocellulose was isolated from rice straw by H2SO4 hydrolysis and mechanical treatments. The optimal condition for prepared nanocellulose were varying the speed of homogenized (1000, 1300 and 1600 rpm), ... -
Probiotic potential of lactic acid bacteria for cholesterol-lowering propertiesand their effects on 3T3-L1 preadipocytes
Collection: Theses (Master's degree) - Micro Biology / วิทยานิพนธ์ – จุลชีววิทยาType: Thesis(Silpakorn University, 4/7/2023)Probiotics are currently receiving considerable interest in studying their effects on metabolic syndrome, which is a major global health problem. The objective of this research was to isolate lactic acid bacteria (LAB) ... -
Problems concerning the sum of divisors and generalizations of perfect numbers
Collection: Theses (Ph.D) - Mathematics ดุษฎีนิพนธ์ - คณิตศาสตร์Type: Thesis(Silpakorn University, 26/11/2021) -
Problems in Lucas sequences of the first and second kinds.
Collection: Theses (Ph.D) - Mathematics ดุษฎีนิพนธ์ - คณิตศาสตร์Type: Thesis(Silpakorn University, 26/11/2021)