AI SearchPerformance of small automatic irrigation canal structures under laboratory and field conditions (Record no. 86877)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 03696nam a2200421 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260818171625.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 090698 th eng |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b10495824 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no. WA-89-16 |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Pradhan, Niranjan |
| 245 10 - TITLE STATEMENT | |
| Title | Performance of small automatic irrigation canal structures under laboratory and field conditions |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Bangkok : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 1989 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 110 p. + |
| Accompanying material | 1 online resource |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. WA-89-16 |
| 500 ## - GENERAL NOTE | |
| General note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Eng.) - Asian Institute of Technology, 1989 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | The present research emphasizes on the calibration and evaluation of an automatic downstream control AVIO Gate and constant flow distributors. In the laboratory, also the leakage through the emergency gate and the AVIO Gate were studied. The modules were tested both for downstream submerged flow and free flow conditions. From submerged flow data, an attempt was made to develop nomographs which can be used as a tool to determine the flow through the modules for any submergence and upstream and downstream head difference by interpolation. Under downstream submergence, the commencement of orifice flow for Single Baffle Module could not be ascertained due to more effect of submergence. But for the Double Baffle Module except the first falling stage the second falling stage could be ascertained, which shows that the module is more suitable for submerged condition. In case of free flow for both the modules, this falling stage nature is clearly seen within the specified head range above the sill. The coefficients of discharge for weir flow and orifice flow have been determined. From the performance study of the gate separately and associated with modules it is seen that the constant downstream level control gate is really an effective means of making more rational use of available water supplies and of running canal systems on a more economical basis. It also provides an attractive and original answer to the problem of equipping water offtakes and other free surface control works required to maintain a definite downstream water level. The actual flow through the distributors in downstream free flow condition varies from the design flow rates at 5% to 15% and in downstream submerged condition the flow rate variation remains within the range of 20% to 30%. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Irrigation |
| General subdivision | Management |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Irrigation |
| General subdivision | Automation |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Loof, Rainer, |
| Relator term | Chairperson |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Paudyal, Guna N., |
| Relator term | Co-chairperson |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Preecha Kamronrithisorn, |
| Relator term | Examination committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | The Government of Japan, |
| 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. WA-89-16 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B17995">http://203.159.5.9/ait-thesis/detail.php?q=B17995</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b10495824 |
| b | mnait |
| c | s |
| 902 ## - LOCAL DATA ELEMENT B, LDB (RLIN) | |
| a | 240404 |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 2 |
| Cataloger's initials, CIN (RLIN) | 951012 |
| First date, FD (RLIN) | m |
| -- | a |
| -- | s |
| -- | 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 : 30050003053666 |
| CREATED | CREATED : 1994-05-18 |
| RECORD Id | RECORD # : i10621921 |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 0 |
| -- | TOT RENEW : 0 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050003053674 |
| CREATED | CREATED : 1994-05-18 |
| RECORD Id | RECORD # : i10621933 |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 0 |
| -- | TOT RENEW : 0 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050160034111 |
| CREATED | CREATED : 2016-12-02 |
| RECORD Id | RECORD # : i12881016 |
| 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. WA-89-16 | 30050003053666 | 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. WA-89-16 | 30050003053674 | 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. WA-89-16 | 30050160034111 | 18/08/2026 | 18/08/2026 | 40-Archives |