AI SearchField testing of a PTO powered disk tiller in Bangkok clay soil (Record no. 44201)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 03865nam a2200397 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260818113706.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 080598 th eng |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b10277584 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no.AE-93-8 |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Islam, Md. Sirajul |
| 245 10 - TITLE STATEMENT | |
| Title | Field testing of a PTO powered disk tiller in Bangkok clay soil |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Bangkok : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 1993 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 76 leaves : |
| Other physical details | ill. |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. AE-93-8 |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Eng.) - Asian Institute of Technology, 1993 |
| 500 ## - GENERAL NOTE | |
| General note | A thesis s ubmitted in partial fulfilment of the requirements for t he degree of Master of Engineering. |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Field t estin g of a PTO powered disk tiller Model F-800 was conducted in Bangkok clay soil. Tests were conducted at different forward speeds of 1, 2, 3, 4 and 5 kmph and 33°, 28° and 23° different gang angles. Average PTO speed was 540 rpm for all the experiment s . Test runs were also conducted without PTO power s upply. All experiments were conducted at 263 average soil moistu re content. The draft power was measured by a three point linkage dynarnometer. The PTO power was measured by a slip ring torque transducer. The power requirement and the tilling effects on soil physical properties were studied after pass 1 and pass 2. Draft power was calculated from draft force and forward speed. The PTO power was calculated from the PTO torque and speed data. The overall performance of powered disk tiller at different gang angles was evaluated in terms of power requirement, change in soil bulk density, total porosity, cone index, mean weight diameter and percent soil inversion. In general, it was observed that the disk tiller required as much as 273 more power at 33° gan g an gle settin g than at 28° gang angle setting. Power. consumptjon was affected by forward speed and the number of passes. At a ny of the gang angle settin gs power consumption was hig her during pass 1 than pass 2. The tiller performed better at 28 ° gang angle compared to 33 ° gang angle in terms of change in bulk density, total porosity, cone index and mean weight diameter. However, higher percentage of soil inversion was obtained at 33° gang angle. At 23° gan g angle, the disk tiller was not able to work properly due to prevention of disk penetration by the gage wheel which was moving on the unplowed field. The powered disk tiller without PTO power supply required heavy draft and the tillage depth was reduced as muc h as 503. It was found by power spectral density analysis that the soil failure frequency for the draft of powered disk tiller ranges from 4-6 cycles/meter and for torque it varies from 3.3-4.3 cycles/revolution of the disk. The wave length of soil failure was higher at 33° gang angle compared to 28° gang angle for both draft and torque. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Agricultural machinery |
| General subdivision | Testing |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Salokhe, Vilas M., |
| Relator term | Chairperson |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Gupta, Chandra P., |
| Relator term | Examination committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Singh, Gajendra, |
| Relator term | Examination Committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Clough, David Gee, |
| Relator term | Examination committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Governme nt of Norway, |
| 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-93-8 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B16020">http://203.159.5.9/ait-thesis/detail.php?q=B16020</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b10277584 |
| b | mnait |
| c | x |
| 902 ## - LOCAL DATA ELEMENT B, LDB (RLIN) | |
| a | 240401 |
| 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 | mnarc |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 22-AIT Thesis (Replacement) |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 40-Archives |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120578009 |
| CREATED | CREATED : 2014-02-18 |
| RECORD Id | RECORD # : i12765855 |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 0 |
| -- | TOT RENEW : 0 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120376180 |
| CREATED | CREATED : 2016-01-06 |
| RECORD Id | RECORD # : i1301044x |
| 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 | Cost, normal purchase price | 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 | 50.00 | AIT Thesis no.AE-93-8 | 30050120578009 | 18/08/2026 | 3 | 18/08/2026 | 22-AIT Thesis (Replacement) | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 18/08/2026 | AIT Thesis no.AE-93-8 | 30050120376180 | 18/08/2026 | 18/08/2026 | 40-Archives |