تصفح حسب الموضوع "Engineering: Mechanical Engineering"
السجلات المعروضة 1 -- 6 من 6
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Dynamic Analysis Of A Novel Manpowered Transportation Vehicle With High Mechanical Efficiency
( Qatar University , 2002 , Article)This paper evaluates the dynamics of a novel manpowered transportation vehicle. The vehicle has a novel mechanism that maximizes the mechanical input work and utilizes the weight of the rider for propulsion. The rider ... -
On The Solution Of The Job-Shop Scheduling Problem Under Fuzzy Environment
( Qatar University , 2002 , Article)This paper presents a solution algorithm for solving the job-shop scheduling problem involving fuzzy parameters in the constraints. It is considered that the processing times are those fuzzy parameters and the maximum ... -
Parametric Study On Single Machine Early/Tardy Problem Under Fuzzy Environment
( Qatar University , 2002 , Article)This paper presents a solution algorithm for solving the single machine early/tardy problem having fuzzy parameters in the constraints. There are several cost structures: job-independent, job-dependent and symmetric, and ... -
Performance Simulation Of Single-Evaporator Domestic Refrigerator Using Alternative Refrigerants
( Qatar University , 2003 , Article)The search for well-functioning and energy-optimized refrigeration systems has made modeling and simulation of such systems an important tool for the industry in terms of product development. The present study explores how ... -
Stability Analysis Of Digital Pd Control Applied To Flexible Systems
( Qatar University , 2002 , Article)The work shows that the sampling in a digital PD controller of a flexible system may cause instability, while the continuous PD control system is stable. A procedure is introduced to define the stability regions analytically ... -
Unrelated Machines Scheduling With Machine Eligibility Restrictions
( Qatar University , 2002 , Article)In this paper we present a new heuristic algorithm to minimize the makespan for scheduling jobs on unrelated parallel machines with machine eligibility restrictions ( R^ I M .1 C^^). To the best of our knowledge, the ...