Browsing Faculty of Science by Issue Date
Now showing items 1-20 of 1083
-
Development and applications of paper spray-Mass Spectrometry in postmortem methamphetamine narcotics and psychoactive drugs analysis.
Collection: Theses (PH.D) - Forensic Science and Criminal Justice / ดุษฎีนิพนธ์ – นิติวิทยาศาสตร์และงานยุติธรรมType: Thesis(Silpakorn University, 1/7/2022)Problems with methamphetamine addiction and psychotropic substance abuse (ketamine) become a national social problem in Thailand. The workload is increasing while the analytical results must be highly accurate as well. ... -
The Study on Learning Achievement in Mathematics for Mathayomsuksa 4 Students, Kongthong Wittaya School by Using Induction Method with Numbered Heads Together Technique (NHT) of Logic.
Collection: Theses (Master's degree) - Mathematics Study / วิทยานิพนธ์ – คณิตศาสตร์ศึกษาType: Thesis(Silpakorn University, 1/7/2022)The purposes of this research were : 1) to compare the before and after of the learning achievement in mathematics by using induction method with numbered heads together technique (NHT) for logic 2) to compare the criteria ... -
Factors affecting the outbreak and incidence of dengue fever in Phetchaburi province.
Collection: Theses (Master's degree) - Environment Science / วิทยานิพนธ์ - วิทยาศาสตร์สิ่งแวดล้อมType: Thesis(Silpakorn University, 1/7/2022)The purpose of this study was to investigate the factors affecting the outbreak and incidence of dengue hemorrhagic fever. Amphoe Muang, Phetchaburi was the location. The comparison was done between Tha-Rap and Wiang-Khoi ... -
Morphological characterization and genetic identification of cercariae from infected snails intermediate host, genus Stenomelania Fischer, 1885 in Thailand.
Collection: Theses (Ph.D) - Biology / ดุษฎีนิพนธ์ - ชีววิทยาType: Thesis(Silpakorn University, 1/7/2022)Stenomelania (Fischer, 1885) is one of the snail species in the family Thiaridae. It has been realized that the snail in this family played an important role as an intermediate host of human and animal trematodes. The ... -
Regularization in High Dimensional Logistic Regression Model by using Adaptive LASSO Method
Collection: Theses (Master's degree) - Applied Statistics / วิทยานิพนธ์ – สถิติประยุกต์Type: Thesis(Silpakorn University, 1/7/2022)Regularization or penalized logistic regression is widely used to estimate parameters for the high dimensional data. The purpose of this research was to compare the performance of three Adaptive LASSO (Least absolute ... -
A study of net radiation from data collected at Nakhon Pathom meteorological station
Collection: Theses (Master's degree) - Physics / วิทยานิพนธ์ – ฟิสิกส์Type: Thesis(Silpakorn University, 1/7/2022)In this work, the net radiation was measured by using a net radiometer (Kipp&Zonen: CNR4) located at Kamphaeng Saen district, Nakhon Pathom, Thailand. Five-year period (2017-2021) of the net radiation data from this ... -
Development of silica dust for latent footprint detection
Collection: Theses (Master's degree) - Forensic Science / วิทยานิพนธ์ – นิติวิทยาศาสตร์Type: Thesis(Silpakorn University, 1/7/2022)Footprints like fingerprints was a source of physical evidence to identify the criminal in an investigation. Footprint of every person was unique because of the differences in pattern and ridges. The objective of this study ... -
Forecasting of stature from the step length while walking and toe walking
Collection: Theses (Master's degree) - Forensic Science / วิทยานิพนธ์ – นิติวิทยาศาสตร์Type: Thesis(Silpakorn University, 1/7/2022)The study aims to 1) determine the relationship between stature and step length while walking and toe walking, along with generated the forecasted equation, and 2) investigate the difference in step length between walking ... -
THE ELEMENT ANALYSIS OF SOIL SAMPLES BY SCANNING ELECTROMICROSCOPY AND ENERGY DISPERSIVE X-RAY SPECTROSCROPY FOR FORENSIC APPLICATION
Collection: Theses (Master's degree) - Forensic Science / วิทยานิพนธ์ – นิติวิทยาศาสตร์Type: Thesis(Silpakorn University, 1/7/2022)Soil sample has been proven to support the forensic investigation. There is an increasing demand for studies on such soil evidence. The objective of this work was to study the forensic application of scanning electron ... -
Biological activities of synthetic heterocyclic compounds and natural secondary metabolite produced from Boesenbergia rotunda roots actinomyces.
Collection: Theses (Ph.D) - Organic Chemistry / ดุษฎีนิพนธ์ - เคมีอินทรีย์Type: Thesis(Silpakorn University, 1/7/2022)Heterocyclic compounds are often found to be part of the structure of many biologically active substances, including anticancer, antibacterial anti-inflammatory activities. It has also been found to be part of plant growth ... -
A study of clouds in Thailand using ground and satellite based data
Collection: Theses (Ph.D) - Physics / ดุษฎีนิพนธ์ - ฟิสิกส์Type: Thesis(Silpakorn University, 1/7/2022)This research can be divided into three parts. The first part is to investigate the optical thickness of low cloud at Nakhon Pathom station (13.82°N, 100.04°E), Thailand during 2019-2020. A method for determining the ... -
DESIGN AND SYNTHESIS OF VISIBLE AND NEAR INFRARED FLUORESCENCE COMPOUNDS FOR HEAVY METALS SENSING AND PETROLEUM LABELING APPLICATIONS
Collection: Theses (Ph.D) - Chemistry / ดุษฎีนิพนธ์ - เคมีType: Thesis(Silpakorn University, 1/7/2022)In this thesis, five fluorescence compounds were designed and synthesized for heavy metal ions sensing and petroleum marker applications. The mercury sensor (S1) consisted of thioamide-[5]helicene appended with Schiff ... -
DESIGN AND SYNTHESIS OF VISIBLE AND NEAR-INFRARED FLUORESCENCE SENSORS FOR HEAVY METAL IONS SENSING AND APPLICATION AS A STRIP TEST USING ELECTROSPINNING TECHNIQUE
Collection: Theses (Ph.D) - Chemistry / ดุษฎีนิพนธ์ - เคมีType: Thesis(Silpakorn University, 1/7/2022)Two new fluorescence sensors were designed and synthesized. For the detection of Cu2+ using cyanine derivative offered the emission in the near-infrared (NIR) regions and the detection of Hg2+ using [5]helicene derivative ... -
EVALUATION OF THE USE OF WI-FI PROBES TO CREATE A HUMAN DETECTION SYSTEM
Collection: Theses (Master's degree) - Information Technology and Digital Innovation / วิทยานิพนธ์ - เทคโนโลยีสารสนเทศและนวัตกรรมดิจิทัลType: Thesis(Silpakorn University, 1/7/2022)There are many places of interests that do not have information on the number of people visiting, leaving, and the amount of time they stayed for. In Thailand, there are over 5,000 registered historical sites, many of which ... -
Effect of certain plant growth regulators on shoot growth and root induction of Pai Sang Mon ‘Nuan Rajinee’ (Dendrocalamus sericeus Munro.)
Collection: Theses (Master's degree) - Biology / วิทยานิพนธ์ - ชีววิทยาType: Thesis(Silpakorn University, 1/7/2022)Effects of plant growth regulators on shoot initiation from a node segment and multiple shoot induction from a shoot clump of Pai Sangmon ‘Nuan Rajinee’ (Dendrocalamus sericeus Munro) were investigated. A surface-sterilized ... -
A study of monthly average daily global solar radiation from measuring stations in Thailand
Collection: Theses (Master's degree) - Physics / วิทยานิพนธ์ – ฟิสิกส์Type: Thesis(Silpakorn University, 1/7/2022)Monthly average daily global solar radiation data are very important for designing and evaluating of the performance the solar energy technologies, which require long-term solar radiation data. Therefore, this study aims ... -
Development of a powder from food colorants powder to detect fingerprints on cups made of ceramic and plastic
Collection: Theses (Master's degree) - Forensic Science / วิทยานิพนธ์ – นิติวิทยาศาสตร์Type: Thesis(Silpakorn University, 1/7/2022)Fingerprints are the important evidence often recovered from crime scenes. They have provided key evidence in uncountable cases of serious criminal. Fingerprints left at crime scenes generally are latent prints. They are ... -
The relationship between imprinting fingerprints time and latent fingerprint minutiae extracted using black powder and cyanoacrylate techniques from zip-lock plastic bags
Collection: Theses (Master's degree) - Forensic Science / วิทยานิพนธ์ – นิติวิทยาศาสตร์Type: Thesis(Silpakorn University, 1/7/2022)The study aims to 1) to make a comparison between latent fingerprint from zip-lock bags and black powder and Cyanoacrylate 2) to examine the relationship between imprinting fingerprints time period and latent fingerprint ... -
Investigation of the expansion of the tropical zone and its effect on climate in Thailand
Collection: Theses (Ph.D) - Physics / ดุษฎีนิพนธ์ - ฟิสิกส์Type: Thesis(Silpakorn University, 1/7/2022)Amongst the issues associated with global climate change, the expansion of the tropics has become increasingly important. This expansion is normally demonstrated in the form of changes in the Hadley circulation. The first ... -
Software for Sharpness Adjustment of Licence Plate on Moving Vehicle
Collection: Theses (Master's degree) - Information Technology and Digital Innovation / วิทยานิพนธ์ - เทคโนโลยีสารสนเทศและนวัตกรรมดิจิทัลType: Thesis(Silpakorn University, 1/7/2022)This independent research aims to sharpen the image of a moving vehicle license plate. Using images extracted from videos recorded from different types of devices or video files which is blurry due to recording or the focus ...