AI SearchCompression tests for measuring the firmness of potatoes (Record no. 20565)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 03830cas a2200409 a 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260818084448.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 110908s1982 th uu|m rtt 0| a1eng d |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b10154723 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no. AE-82-03 |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Onrawee Techasena |
| 245 10 - TITLE STATEMENT | |
| Title | Compression tests for measuring the firmness of potatoes |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Bangkok : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 1982 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 63 p. |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. AE-82-03 |
| 500 ## - GENERAL NOTE | |
| General note | A thesis submitted in partial fulfilment of the requirement for the degree of Master of Science, School of Environment, Resources and Development |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Sc.) - Asian Institute of Technology, 1982 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | The firmness of potatoes was evaluated in terms of the elasticity modulus based on axial compression, radial compression and Hertz contact stress analysis using an Instron testing machine. Cylindrical test specimens (1. 5 cm in diameter and 3. 0 cm long), whole potatoes and their flat surface were tested under compression at the loading rate of 50mm/min. The changes in firmness of potatoes were monitored over a period of 8 weeks when stored at 5, 10, 20 and 30°C. Potatoes exhibited nonlinear force-deformation behavior in axial compression tests requiring the calculation of tangent elasticity modulus values as a function of percent compression. In .radial compression tests, there was marked deviation of experimental force-deformation relationships from the theory. Therefore, the computed values of elasticity modulus were expressed as a function of percent compression. In compression tests with whole potatoes and their flat surface, the force-deformation relationship conformed to Hertz analysis only at low compression values and could be used to calculate elasticity modulus independent of percent compression. The experimental elasticity modulus values showed a wide variation in their magnitudes primarily .due to the characteristics of each test method used. The firmness of potatoes appeared to decrease exponentially with storage period at all temperatures. Since the elasticity modulus values .as determined in various compression tests were different, it was necessary to express change in their magnitude during storage on percentage basis for making relative comparisons. The radial compression test showed maximum percentage decrease in the elasticity modulus values with storage time. The axial compression test values were next. The compression of whole potatoes and their flat surface followed very closely to each other and showed minimum decrease in the elasticity modulus values during the storage at all temperature. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Potatoes |
| Geographic subdivision | Thailand |
| General subdivision | Testing |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Jindal, Vinod Kumar, |
| Relator term | Chairperson |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Yudhbir, |
| Relator term | Examination Committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Kim, Kong-Hwan, |
| Relator term | Examination Committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | The US-ASEAN, |
| Relator term | Scholarship Donor |
| 810 2# - SERIES ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Asian Institute of Technology. |
| Title of a work | Thesis ; |
| Volume/sequential designation | no. AE-82-03 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B21126">http://203.159.5.9/ait-thesis/detail.php?q=B21126</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b10154723 |
| b | mnait |
| c | x |
| 902 ## - LOCAL DATA ELEMENT B, LDB (RLIN) | |
| a | 240821 |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 2 |
| Cataloger's initials, CIN (RLIN) | 951012 |
| First date, FD (RLIN) | m |
| -- | a |
| -- | x |
| -- | 0 |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnarc |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 20-AIT Publication |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 40-Archives |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050003029336 |
| CREATED | CREATED : 1994-05-16 |
| RECORD Id | RECORD # : i10182767 |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 0 |
| -- | TOT RENEW : 0 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050003029369 |
| CREATED | CREATED : 1994-05-16 |
| RECORD Id | RECORD # : i10182779 |
| LPATRON | LPATRON : 1017416 |
| LCHKIN | LCHKIN : 2005-05-14 |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 3 |
| -- | TOT RENEW : 4 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120301857 |
| CREATED | CREATED : 2016-05-26 |
| RECORD Id | RECORD # : i12994455 |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 0 |
| -- | TOT RENEW : 0 |
| Withdrawn status | Lost status | Damaged status | Not for loan | Home library | Current library | Shelving location | Date acquired | Total checkouts | Full call number | Barcode | Date last seen | Copy number | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 18/08/2026 | AIT Thesis no. AE-82-03 | 30050003029336 | 18/08/2026 | 1 | 18/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 18/08/2026 | AIT Thesis no. AE-82-03 | 30050003029369 | 18/08/2026 | 2 | 18/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 18/08/2026 | AIT Thesis no. AE-82-03 | 30050120301857 | 18/08/2026 | 18/08/2026 | 40-Archives |