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008 121095s1985 th uu m rtt 00| a1eng d
035 _a.b10070436
099 9 _aAIT RSPR no. IE-85-11
100 1 _aMaarif, Mohammad Syamsul
245 1 3 _aAn application of control theory to rubber plantation management
260 _aBangkok :
_bAsian Institute of Technology,
_c1985
300 _a62 p.
490 1 _aResearch studies project report ;
_vno. IE-85-11
500 _aA research study submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology
502 _aResearch Studies Project Report (M. Eng.) - Asian Institute of Technology, 1985
520 _aThe problem of rubber plantation management is formulated as a problem in control theory . The production of rubber trees depend on intra-rotation activities (maintenance ), stocking density, and the age of rubber trees. Th e objective of t h is study is to maximize the present value of all the future net profits over a class of in finite chain of rotation where each link in the cha in represents a uniform length rotation with identical intra-rotation activities. The optimal control is determined by applying the Pontryagin's Maximum Principle. Since data on effects of maintenance to the production is difficult to get, qualitative analysis is used in applying the control model . By using present value comparisons , the optimal rotation time T, stocking density So , and the age of restocked trees To are determined. The optimal tapping system is also determined by choosing the most profit able tapping system.
650 0 _aRubber plants
700 1 _aClarke Harry R.,
_eChairperson
700 1 _aOudheusden, Dirk L. van,
_eExamination Committee
700 1 _aVrat, Prem,
_eExamination Committee
700 1 _aSauter-Servaes, Florian,
_eExamination Committee
710 2 _aUS - ASEAN,
_eScholarship Donor
810 2 _aAsian Institute of Technology.
_tResearch studies project report ;
_vno. IE-85-11
856 _3Full-Text
_uhttp://203.159.5.9/ait-thesis/detail.php?q=B19885
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