MARC details
| 000 -LEADER |
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| fixed length control field |
03130ntm a2200337 i 4500 |
| 003 - CONTROL NUMBER IDENTIFIER |
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| control field |
MY-KuUP |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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| control field |
20260223162537.0 |
| 006 - FIXED-LENGTH DATA ELEMENTS--ADDITIONAL MATERIAL CHARACTERISTICS |
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| fixed length control field |
t||||fr|||| 000 0 |
| 007 - PHYSICAL DESCRIPTION FIXED FIELD--GENERAL INFORMATION |
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| fixed length control field |
ta |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
260223t20252025my a|||fr|||| 000 0 eng d |
| 020 ## - INTERNATIONAL STANDARD BOOK NUMBER |
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| International Standard Book Number |
THE0010377 (Local) |
| Qualifying information |
Hardback |
| 040 ## - CATALOGING SOURCE |
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| Original cataloging agency |
UMPSA |
| Language of cataloging |
eng |
| Transcribing agency |
UMPSA |
| Description conventions |
rda |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) |
|---|
| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) |
FTKEE .H39 2025 r Thesis |
| 100 1# - MAIN ENTRY--PERSONAL NAME |
|---|
| Personal name |
Sayma Khandaker, |
| Relator term |
author. |
| 245 10 - TITLE STATEMENT |
|---|
| Title |
Development of gas sensing system for methane detection using differential optical absorption spectroscopy (doas) technique in the near-infrared (nir) region / |
| Statement of responsibility, etc. |
Sayma Khandaker |
| 264 #1 - PRODUCTION, PUBLICATION, DISTRIBUTION, MANUFACTURE, AND COPYRIGHT NOTICE |
|---|
| Place of production, publication, distribution, manufacture |
Kuantan, Pahang : |
| Name of producer, publisher, distributor, manufacturer |
UMPSA, |
| Date of production, publication, distribution, manufacture, or copyright notice |
2025 |
| 264 #4 - PRODUCTION, PUBLICATION, DISTRIBUTION, MANUFACTURE, AND COPYRIGHT NOTICE |
|---|
| Date of production, publication, distribution, manufacture, or copyright notice |
© 2025 |
| 300 ## - PHYSICAL DESCRIPTION |
|---|
| Extent |
xv, 103 pages : |
| Other physical details |
illustrations ; |
| Dimensions |
30 cm. + |
| Accompanying material |
1 CD-ROM. |
| 336 ## - CONTENT TYPE |
|---|
| Source |
rdacontent |
| Content type term |
text |
| 337 ## - MEDIA TYPE |
|---|
| Source |
rdamedia |
| Media type term |
unmediated |
| 338 ## - CARRIER TYPE |
|---|
| Source |
rdacarrier |
| Carrier type term |
volume |
| 347 ## - DIGITAL FILE CHARACTERISTICS |
|---|
| Source |
rda |
| File type |
text file |
| Encoding format |
PDF |
| 500 ## - GENERAL NOTE |
|---|
| General note |
Faculty of Electrical & Electronics Engineering Technology |
| 502 ## - DISSERTATION NOTE |
|---|
| Dissertation note |
Thesis (Master of Science) -- Universiti Malaysia Pahang - 2025 |
| 504 ## - BIBLIOGRAPHY, ETC. NOTE |
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| Bibliography, etc. note |
Include bibliographical reference |
| 520 3# - SUMMARY, ETC. |
|---|
| Summary, etc. |
Methane (CH4) plays a pivotal role in climate change and industrial safety, yet its detection and monitoring remain challenging due to limitations in existing methods. This thesis explores the development of a methane gas sensing system utilizing the Differential Optical Absorption Spectroscopy (DOAS) technique. The system is designed to enhance detection significance. Key objectives include identifying the optimal wavelength in the Near-Infrared (NIR) region for methane detection. The study demonstrates the selection of 883 nm as the optimum wavelength for methane detection based on theoretical and experimental analyses. Laboratory experiments were conducted using a robust optical-based DOAS setup. The cross-sensitivity analysis is conducted to confirm the ability of DOAS to effectively differentiate CH4 from other atmospheric gases such as O2, CO2, and water vapor. A comparative analysis with the commercial MESTEK CGD02A sensor further validates the reliability of DOAS system. A total of six experimental tests were conducted. Among them, While Tests 1 and 3 yielded significant detection results for the DOAS system, the remaining four tests show slightly higher values for the commercial sensor, with an average error-percentage of 3.38%, which meets the laboratory standard for instruments with good precision. This research advances the application of DOAS in methane detection by providing an efficient solution for industrial and environmental monitoring. The proposed system addresses gaps in current technologies by offering broader spatial coverage and real-time detection capabilities, critical for mitigating methane emissions and improving industrial safety. The outcomes align with global climate mitigation goals and emphasize the importance of innovative sensing technologies in addressing greenhouse gas emissions. |
| 610 20 - SUBJECT ADDED ENTRY--CORPORATE NAME |
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| Corporate name or jurisdiction name as entry element |
Faculty of Electrical & Electronics Engineering Technology |
| General subdivision |
Dissertations |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
Universities and colleges |
| General subdivision |
Dissertations |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
Theses |
| General subdivision |
Dissertations |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
|---|
| Source of classification or shelving scheme |
Library of Congress Classification |
| Koha item type |
Thesis |