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Browsing Sci - Theses by Title

Now showing items 1-20 of 6438

1-Phenyl-3-Methyl-4-stearoyl-5-pyrazolone doped porous silica for solid phase extraction of metal from aqueous solution

Ruangsak Yucha (Chulalongkorn University, 2003)

1-Phenyl-3-methyl-4-stearoyl-5-pyrazolone (HPMSP) doped mesoporous silica was prepared in a one-step synthesis by encapsulation of a pyrazolone ligand in surfactant templated silica. The influence of NaOH concentration ...
2-Absorbing and weakly 2-absorbing subsemimodules over commutative semirings

Issarapron Thongsomsuk (Chulalongkorn University, 2012)

In this thesis, we study 2-absorbing, weakly 2-absorbing, AG2-absorbing and weakly AG2-absorbing subsemimodules of semimodules over commutative semirings. Those are extended from prime, weakly prime, primary and weakly ...
2-Absorbing R-ideals of modules over near rings

Sutida Patlertsin (Chulalongkorn University, 2016)

It is known that near rings and modules over near rings are generalized algebraic structures of rings and modules over rings, respectively. In this thesis, we introduce the concepts of 2-absorbing R-ideals of modules over ...
3-D Image reconstruction based on optical interferometry

Jakkapol Visessamit (Chulalongkorn University, 2008)

Optical coherence tomography (OCT), based on a vertical scanning Michelson interferometer with a superluminescent diode (SLD), was applied for constructing a surface profile of material. To reduce time-consuming process, ...
3D building internal structural component segmentation from point cloud data using DBscan and modified ransac with normal deviation conditions

Thanapon Doougphummet (Chulalongkorn University, 2022)

Nowadays, the laser scanner plays an important role as a tool to capture building structure in a form of point cloud which can be used to draw a blueprint or a floor plan for reconstruction or renovation of an existing ...
3D captcha : a new generation of captcha

Montree Imsamai (Chulalongkorn University, 2009)

Nowadays, the internet is now becoming a part of our everyday lives. Many services, including Email, search engine, and web board on internet, are provided with free of charge and unintentionally turns them into vulnerability ...
3D printing of graphene/thermoplastic elastomer composites

Warrayut Kanabenja (Chulalongkorn University, 2017)

Graphene based thermoplastic polyurethane composites filaments was prepared by melt blending process prior to fabricate with 3D printing technique. The effects of different graphene loading (0.05 wt% - 0.20 wt%) in TPU ...
3D-Model rendering in Chinese brush style

Nucharee Thongthungwong (Chulalongkorn University, 2012)

3D rendering has become popular in the film industry. However, for the animation industry, they tend to find a method for rendering in artistic style. There are so many approaches for creating stylized rendering. One of ...
3D-QSAR and molecular dynamics simulations of HIV-1 integrase and its complex with inhibitors

Nadtanet Nunthaboot (Chulalongkorn University, 2006)

Three dimensional quantitative structure activity relationship (3D-QSAR) techniques including CoMFA and CoMSIA were employed to determine the relationship between structural properties and biological activities of 11 and ...
4-carboxybenzenesulfonamide-chitosan nanoparticles as doxorubicin delivery system

Kultida Songsurang (Chulalongkorn University, 2009)

Doxoruicin (DOX) is a commercial and widely used anticancer drug. Nevertheless it also has certain severs side effects. In order to minimize these detrimental effects, various drug delivery systems, including polymer-drug ...
4-dimensional quadratic functional equations of pexider type

Preechaya Sanyatit (Chulalongkorn University, 2008)

The multidimensional quadratic functional equations of Pexider type in the form [equation] (1) where [equation] and [equation] will be considered. In particular when n=3 and n=4, we have respectively the equations [equation] ...
A Hotel Hybrid Recommendation Method Based On Context-Driven Using Latent Dirichlet Allocation

Weraphat Nimchaiyanan (Chulalongkorn University, 2018)

Recommender systems play an important role in helping users find items that they want. Normally, ratings are used in content-based filtering (CBF) and collaborative filtering (CF) for recommendation. However, only ratings ...
A two-stage model for balancing instructor workload and teaching preference in university course timetabling

Nipitta Burana (Chulalongkorn University, 2020)

This thesis focuses on balancing instructor workload and maximizing preferences by using the data in the first semester of 2019 from Department of Mathematics and Computer Science, Faculty of Science, Chulalongkorn University ...
Ab initio calculations on superconducting metal-hydride and perovskites for energy applications

Wiwittawin Sukmas (Chulalongkorn University, 2021)

Superconducting hydrides and photovoltaic perovskites for energy applications are studied by means of the density functional theory-based calculations. First of all, the new decoration of Mg0.5Ca0.5H6 is confirmed ...
An abstract model for automated adaptable mobile agent

Dussadee Praserttitipong (Chulalongkorn University, 2006)

A mobile agent (MA) typically operates in open, dynamic, and unpredictable environments. Therefore, when designing MA systems, it is difficult to anticipate all possible situations an MA may encounter. In order to reach ...
Abundance and courtship behavior of a firefly Luciola sp. HK 1 at The Huai Hongkhrai Royal Development Study Center, Doi Saket District, Chiang Mai Province

Nutta Pornthitichant (Chulalongkorn University, 2015)

Abundance and courtship behavior of Luciola sp. HK 1 at the Huai Hongkhrai Royal Development Study Center, Doi Saket District, Chiang mai Province were investigated from July 2014 to June 2015. Adults of the Luciola sp. ...
Accelerated weathering effects on mechanical properties and morphology of Vetiver Grass fiber/polyamide-6 composites

Khanitthakanya Munkid (Chulalongkorn University, 2010)

This research evaluates the use of natural fiber in polyamide-6 composites aiming to synthetic fiber replacement. The application of natural fiber as reinforcement in composite materials requires a strong adhesion between ...
Accelerating the solving process of optimal layout design using genetic algorithm

Thitiya Theparod (Chulalongkorn University, 2009)

The layout design optimization is a complicated process of an architectural design which is concerned with finding feasible locations and size of rooms that meet design requirement and design preference. This paper formulates ...
Acetylcholinesterase inhibitors from roots of Feroniella lucida

Chalouyluk Phoopichayanun (2007)

The chemical study of acetylcholinesterase (AChE) inhibitory activity compounds from BuOH crude extract from roots of Feroniella lucida in the family Rutaceae led to the isolation of four new furanocoumarins, named ...
Acetylcholinesterase inhibitory activity of proteins from the rhizomes of zingiberaceae plants

Porlin Rungsaeng (Chulalongkorn University, 2010)

Acetylcholinesterase inhibitors (AChEIs) have been used as drugs for the symptomatic treatment of Alzheimer’s disease (AD). In order to search for new AChEIs, 15 Zingiberaceae plants were tested for AChEI activity in rhizome ...

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