Browsing Eng - Theses by Issue Date

Discrete cross-correlation method using digital computer in linear system identification

Chainan Burananusorn (Chulalongkorn University, 1974)

Identification of dynamical paramenters for a short-range rocket system firing

Tom Namasondhi (Chulalongkorn University, 1975)

The method of identifying the various parameters caused by the aerodynamic motion of a rocket system firing has been developed. An open – loop of fin – stabilized short – range rocket system has been investigated. The ...

A study of bamboo as reinforcement for rice bins

Sutat Chansangpetch (Chulalongkorn University, 1976)

The purpose of this investigation is to study the suitability of bamboo as reinforcement for conical rice bins, and to compare the theoretical analysed structure of conical rice bins as composite and isotropic materials ...

On reduction of positive feedback by audio frequency processing techniques

Kiertichai J. Amphywong (Chulalongkorn University, 1976)

Reduction of positive feedback between a loudspeaker and a microphone through shifting the frequency of the signal received by the microphone from that of the output signal from the loudspeaker can increase the stability ...

Electrical analogy method for torsion of prismatic shaft

Sutee Kittichit (Chulalongkorn University, 1977)

This thesis is about the torsion problem of shaft solved by means of the distribution of electrical potential on a conduction medium sheet, this can be done because both systems are analogous. In this thesis, the conducting ...

Hydrogenation of methyl ricinoleate

Surapol Daopiset (Chulalongkorn University, 1987)

The hydrogenation of methyl ricinoleate wes studied under varying reaction condition using nickel catalyst Ni 3742D, which is the best commercial catalyst. The suitable operating condition, for hydrogen gas feeding at the ...

Solvent productivity improvement in acetone-butanol fermentation by two-stage continuous system

Satida Krailas (Chulalongkorn University, 1994)

Two-stage continuous system was applied to improve solvent productivity in acetone-butanol fermentation of Clostridium acetobutylicum ATCC 824. In this system, the medium concentration, pH, and temperature were kept constant ...

Water retention and evaporation in a coulumn of sand mixed with water-absorbing polymers

Sinsupha Chuichulcherm (Chulalongkorn University, 1995)

To test the effect of water-absorbing polymers to water retentions in sand columns and measure the diffusion coefficient for a number experimental conditions. Water-absorbing polymers increase water holding capacities in ...

Improvement of double skin air handing unit design for using and manufacturing in Thailand

Peerasut Thirakomen (Chulalongkorn University, 1999)

Study and recommendation of the double skin Air Handing Unit (AHU) design improvements for using and manufacturing in Thailand market. The improved AHU design that convene with the customer demands will be proposed as ...

Study of optically pumped edge emission spectra from quantum structure

Rudeesun Songmuang (Chulalongkorn University, 1999)

Edge emission spectra of GaAs/Al0.2Ga0.8As and In0.2Ga0.8As/GaAs single quantum well and multiple quantum well were investigated by optically-pumped technique using argon laser (5140 ํA). The structures were grown by the ...

L-lysine extraction from mother liquor by emulsion liquid membrane

Wanwisa Thawisaeng (Chulalongkorn University, 1999)

The extraction equilibrium of synthetic L-lysine and L-lysine from mother liquor were studied at various carriers, D2EHPA, concentration. Each experiment was carried out at room temperature for 48 hours with a stirred speed ...

Role of alkali metal and co-promoter on coke reduction on an active site of the Pt/r-Al2O3 catalyst

Pudjakom Choungchaisukasam (Chulalongkorn University, 1999)

Deposition of coke on metal active sites decreases the activity of catalysts. Extensive researches on the spillover phenomena been the subject of numerous reviews (18). Spillover is known to affect have catalyst performance, ...

Equations of state for n-heptane, benzene and cyclohexane system based on density data

Chompoonut Bupasiri (Chulalongkorn University, 1999)

Cubic equations of state were studied for the ternary system of n-heptane, benzene and cyclohexane based on density data at temperature of 308.15, 313.15, 323.15 and 333.15 K and pressure of 1.01325, 2, 5 and 10 bar. ...

Production development of a pressure sensitive adhesive from natural rubber latex

Jittraporn Layanun (Chulalongkorn University, 1999)

This research aims to develop a methodology of making Pressure Sensitive Adhesive (PSAs) from natural rubber latex and to study the physical properties of PSAs. The effects of depolymerisation time, contents and types of ...

Application of the V-Mg-O/TiO2 catalyst on the selective oxidation of alcohols

Purida Pimanmas (Chulalongkorn University, 1999)

The application of V-Mg-O/TiO2 catalyst on the selective oxidation of methanol, ethanol, 1-propanol and 2-propanol was investigated. In this research, the various conditions have been performed to determine the suitable ...

Economic decision making for selecting an appropriate by-product upgrading technology

Supamas Isarabhakdi (Chulalongkorn University, 1999)

Study of economic decision making for selecting an appropriate technology to upgrade the by-products of the Aromatics (Thailand) Public Co., Ltd. (ATC). The analysis will be made in two main methods: a technical analysis ...

Implementation of the bar-coding system in material management for an automotive part industry

Siriwat Jithunsa (Chulalongkorn University, 1999)

In this study, a computer-based inventory management system application that can work with a bar-coding system for an automotive parts industry, TBK Krungthep Co., Ltd, has been developed. This application deals with ...

Internet electronic commerce for multi-level marketing

Kanon Bhurahongse (Chulalongkorn University, 1999)

This thesis is concerned with the development of an electronic commerce model for a multi-level marketing business operation in order to take advantage of suitable Internet technology. The objective of the research is to ...

Study of the annealing process for the drawn fine copper wire

Norasit Angkhasirisup (Chulalongkorn University, 1999)

The objective of this research was to study the behaviour of annealing factors, which affected on the mechanical properties of copper drawn wire used for producing low voltage cable. 8mm diameter of copper rod was reduced ...

Implementation plan of a management information system for the Wang Noi Power Plant

Srivan Vigayatipat (Chulalongkorn University, 1999)

This thesis presents the development of an implementation plan of a management information system, MIS, at the Wang Noi Power Plant. The development follows the Business Systems Planning, BSP, methodology developed by IBM. ...

Browsing Eng - Theses by Issue Date

Browsing Eng - Theses by Issue Date

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