Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 289 for “"Precedence"”.
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Perceptual Precedence in Picture Processing
… the form in the stimulus mediate the perceptual precedence of global and local levels.</p><p>Attempts to generalize the results of the above studies to real-world perception are very tentative. The nature of the stimuli used in global precedence research is markedly different from that of …
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Algorithms to Schedule Tasks With And/or Precedence Constraints
In traditional precedence-constrained scheduling a task is ready to execute when all its predecessors are completed. We call such a task an AND task. In many applications there are tasks which are ready to execute when some but not all of their predecessors are complete. We call these tasks OR …
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787 mid-body job precedence networks for improving production rate
… performance. At Boeing's 787 plant, a precedence network was generated which defines the entire build sequence for a mid-body fuselage. This job-level build sequence enables planners to generate optimized and feasible resource-constrained schedules. The network also forms the foundation …
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The role of the precedence effect in sound source lateralization
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2001.
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Towards a neurophysiological correlate of the precedence effect: from psychoacoustics to electroencephalography
… to find a neurophysiological correlate of the precedence effect in humans and to shed light on the question on which stage of the auditory pathway information related to the precedence effect is processed. Investigations were made by means of psychoacoustics and auditory evoked potentials …
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Decentralized Allocation of Tasks with Temporal and Precedence Constraints to a Team of Robots
… task allocation problems with temporal and precedence constraints. To address this class of problems, we employ decentralized algorithms to find approximate solutions that minimize the maximum time needed to complete all tasks. To achieve decentralization, we use auction-based insertion …
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Static-task scheduling incorporating precedence constraints and deadlines in a heterogeneous-computing environment / Michael D Niedert
Distributed systems have grown in popularity due to the rapid increase in networking of personal computers. A mixture of computers consisting of different architectures can be more powerful, reliable, and scalable than a single supercomputer. The problem of optimally scheduling jobs on a cluster of …
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Some topics on deterministic scheduling problems
… the scheduling of a set of ri tasks, with precedence constraints, on m >= 1 identical and parallel processors so as to minimize the makespan. Specifically, it considers the situation where tasks, along with their precedence constraints, are released at different times, and the scheduler has …
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Mechanisms and consequences of hybridisation between Atlantic salmon (Salmo salar) and brown trout (Salmo trutta)
… Salmon and trout experience conspecific sperm precedence during in vitro sperm competition experiments, when sperm volumes and release times are equalised. This thesis firstly aimed to explore the dynamics of gametic interactions underlying this reproductive isolation. Manipulating the sperm …
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Long-term scheduling in underground coal mining using mixed binary programming
… net present value. Defining the mine layout as a precedence network, with the nodes representing mining blocks, a solution procedure is developed, based on Benders' partitioning scheme. That is, the procedure iterates between two problems, namely, the master (primal) problem, solved by a …
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Sperm utilization patterns in Gryllus integer (orthoptera: gryllidae
… mating. There are four sperm utilization or precedence patterns: first male precedence, where the first male to mate fertilizes most of the eggs laid by a female; last male precedence, where the last male to mate fertilizes most of the eggs laid by a female; "all-or-none" pattern, where sperm …
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The role of Walsh structure and ordinal linkage in the optimisation of pseudo-Boolean functions under monotonicity invariance.
… a concept of directed ordinal linkage, we define precedence networks and precedence profiles to represent key algorithmic steps and their interdependency in terms of problem structure. The precedence profiles provide a measure of problem difficulty. This corresponds to problem difficulty and …
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The evolution of prezygotic reproductive isolation in the Drosophila pseudoobscura subgroup
… between gametes, in particular conspecific sperm precedence. Until this study, patterns of sperm precedence had rarely been examined between divergent populations or subspecies within a species. I will evaluate conspecific sperm precedence and its role in reproductive isolation between two …
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Approximation algorithms for stochastic scheduling on unrelated machines
… that apply given increasingly general classes of precedence constraints on jobs. Letting n and m be, respectively, the number of jobs and machines in an instance, when jobs need an exponentially distributed amount of processing, we give: -- An O(log log min {m, n} )-approximation algorithm when …
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Tight Flow-Based Formulations for the Asymmetric Traveling Salesman Problem and Their Applications to some Scheduling Problems
… ATSP6. We extend our new formulations to include precedence constraints in order to enforce a partial order on the sequence of cities to be visited in a tour. The presence of precedence constraints within the ATSP framework is encountered quite often in practice. Examples include: disassembly …
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An international museum for the Harley-Davidson Motor Company: The adaptive use of the Pearl Brewing Co. San Antonio, Texas
… produce evolutionary patterns of historical precedence which enable tradition and customs to emerge. With adaptive use, architectural links to the past can be preserved and enriched with modifications and additions of existing regional patterns, thus producing continuity thru architecture.
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a building within a building
… serve as cocoons for the future, providing the precedence from which grows "a building within a building". The tension created between old and new encourages a didactic relationship between building and city, cognizant of the past while looking towards the future.
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Optimization techniques for task allocation and scheduling in distributed multi-agent operations
… an agent formulates a problem, divides it into a precedence-constrained set of sub-problems, and determines the optimal allocation of these sub-problems/tasks to other agents so that they are completed in the shortest amount of time. The resulting schedule is constrained by the execution delay of …
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