Search for dissertations about: "Priority rules"

Showing result 1 - 5 of 23 swedish dissertations containing the words Priority rules.

2. 1. Mathematical Optimization in Flexible Job Shop Scheduling: Modelling, Analysis, and Case Studies

   Author : Karin Thörnblad; Göteborgs universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Flexible job shop scheduling; Mixed integer linear programming MILP ; Time-indexed formulation; Makespan; Tardiness; Fixture availability; Preventive maintenance; Night shift; Unmanned time window; Dynamic scheduling; Priority rules; Dispatching rules; Critical ratio; Night shift;

   Abstract : The major theme of this thesis is the mathematical optimization modelling of the flexible job shop scheduling problem. This problem is present in the so-called multitask cell—a production cell at GKN Aerospace's facility located in Trollhättan, Sweden—which has served as a case study during the work with this thesis. READ MORE

4. 2. Driver Interaction : Informal Rules, Irritation and Aggressive Behaviour

   Author : Gunilla Björklund; Lars Åberg; Ralf Risser; Uppsala universitet; []
   Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Psychology; Driver interaction; Informal traffic rules; Driver irritation; Aggressive behaviour; Attributional biases; False consensus; Actor-observer effect; Psykologi; Psychology; Psykologi;

   Abstract : On a daily basis drivers have to share the roads with a great number of other road users. To make the driving task possible every driver has to take the intentions and behaviours of other road users into account. In other words, the road users have to interact with each other. READ MORE

5. 3. The use of health economic evaluations in pharmaceutical priority setting - The case of Sweden

   Author : Sandra Erntoft; Företagsekonomiska institutionen; []
   Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Economic evaluation; use; pharmaceutical; priority setting; rationing; Sweden;

   Abstract : The production of health economic evaluations of pharmaceuticals is a global, multibillion dollar industry. Despite this fact, little is known about what happens after a health economic evaluation has been produced. READ MORE

6. 4. Priority setting strategies for regulatory testing of industrial chemicals

   Author : Anna Nordberg; Christina Rudén; Sven Ove Hansson; Nils Gunnar Lindquist; KTH; []
   Keywords : HUMANIORA; HUMANITIES; risk assessment; risk management; regulatory toxicology; test strategies; prioritisation; REACH; industrial chemicals; History of technology and industry; Teknik- och industrihistoria;

   Abstract : For the majority of the estimated 70,000 industrial chemical substances available on the European market today there is not enough information to enable a reasonably complete assessment of the risks that they might pose to man and the environment. Any strategy for the generation of additional data for these substances should aim at making testing as efficient as possible taking into account environmental and health protection, time, monetary cost and animal welfare. READ MORE

7. 5. On the Optimization of Schedules of a Multitask Production Cell

   Author : Karin Thörnblad; Göteborgs universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; mathematical optimization; flexible job shop scheduling; mixed integer linear programming MILP ; complexity analysis; mathematical modelling; production planning; multi-purpose machine; dispatching rule; priority function; total flowtime; total tardiness; release date; due date; due date;

   Abstract : Volvo Aero has invested in a complex production cell containing a set of multipurpose machines. The problem of finding optimal schedules for this multitask cell is a complex combinatorial optimization problem which is recognized as a flexible job shop problem. This thesis proposes an approach to find such schedules using mathematical optimization. READ MORE