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.
Results
Showing 1 to 20 of 195 for “"stochasticity"”.
-
From determinism to stochasticity
Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-06-03T17:40:28Z No. of bitstreams: 1 1986_mistriotis.pdf: 3975733 bytes, checksum: 43533a8fc01e8af27a7fcab38a485c7a (MD5)
-
Stochasticity and order: studies of keratinocyte proliferation
A central tenet of stem cell biology has been that proliferating tissues are maintained through a cellular hierarchy comprising of self-renewing stem cells at the apex, multiple lineage-restricted short-lived progenitor cells, and post-mitotic differentiated cells. The wide range of colony sizes in …
-
Spontaneous stochasticity and thermal noise in turbulent systems
The student, Dmytro Bandak, submitted this Dissertation for approval on 2023-06-20 at 19:47.
-
Analysis of robustness and stochasticity in biochemical networks
Cells are constantly faced with the challenge of functioning reliably while being subject to unpredictable changes from within and outside. Here, I present two studies in which I analyze how biochemical circuits that regulate signaling and gene expression can generate robustness or phenotypic …
-
Stochasticity induced by electrostatic waves in magnetized plasma
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1994, and Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Physics, 1994.
-
Mitigating and exploiting stochasticity in the immune system
… experimental results. We study the role that stochasticity in the dwell time of a T cell at an APC plays in achieving a robust cellular response, and explore models of sequential decision making in the immune system.
-
The Biological Role of Stochasticity from Molecules to Communities
The presence of stochasticity in biology engenders the question of the role of such randomness. While stochasticity may be an artifact of biochemical interactions, it could also be an actively regulated aspect of life. Here I investigate how noise may be encoded within the molecular interactions of …
-
The accuracy of integrated star clusters parameters. The effects of stochasticity /
Star clusters are important tools to probe the star formation history in their host galaxy. The physical parameters (age, mass, extinction, and metallicity) of star clusters with integrated broad-band photometry are traditionally derived using the Simple Stellar Population models (SSP). However, …
-
DNA methylation variability at the crossroads of stochasticity, genetics, and environment
During mammalian development, DNA methylation at most CpG sites throughout the genome is erased; these marks are then re-established later. In humans and in mice, typically all copies of a given CpG site in a particular tissue are methylated in all individuals; a large minority are unmethylated in …
-
Spatial-Temporal Stochasticity of Electric Vehicles in Integrated Traffic and Power System
<p>A penetration of a large number of electric vehicles for charging their batteries in the grid can have a negative impact to the grid. To prevent a negative effect to the grid, the behavior of electric vehicles must be accurately modeled and their charging schedules must be coordinated. …
-
Investigating Reinforcement Learning and Evolutionary Computation for Games with Stochasticity and Incomplete Information
… complex games with incomplete information and stochasticity. Although there has been significant recent progress on AI game players, traditional deep reinforcement learning methods have mainly shown success in games with simpler properties. In this thesis, we evaluate two deep reinforcement …
-
Systems of chemical reactions in biology : dynamics, stochasticity, spatial effects and model reduction
Cells are continuously sensing and processing information from their environments and responding to it in sensible ways. The communication networks on which such information is handled often consist of systems of chemical reactions, such as signaling pathways or metabolic networks. This thesis …
-
A tractable optimization framework for Air Traffic Flow Management addressing fairness, collaboration and stochasticity
We propose a tractable optimization framework for network Air Traffic Flow Management (ATFM) with an eye towards the future. The thesis addresses two issues in ATFM research: a) fairness and collaboration amongst airlines; and b) uncertainty inherent in capacity forecasts. A unifying attraction of …
-
Optimization and Algorithms for Wireless Networks: Enhancing Problem Solvability, Channel Bonding Under Demand Stochasticity, and Receiver Characteristic Awareness
5G networks appear on the horizon with distinguished Quality of Service (QoS) requirements such as aggregated data rate and latency. Managing such networks in either a distributed or centralized manner to best utilize the available scarce resources is still a big challenge. Better mechanisms are …
-
A large-scale neighborhood search approach to vehicle routing pick-up and delivery problem with time windows under uncertainty
… that are cost-effective as well as robust to stochasticity in demands and service times. Even without the additional side constraints, the VRPPDTW is NP-hard. In particular, we consider the solution of VRPPDTW with side-constraints adopted by a carrier. Because of the nature as well as the …
-
Spillover Modelling and Dynamics in Multi-Host Pathogens Transmission
… in a single host species. Two kinds of stochasticity, namely demographic and environmental stochasticity, are incorporated. We find population-size-dependent shift in the relative influence of demographic and environmental stochasticity on disease dynamics. By developing a basic …
-
The use of ringing data in the study of climatic influences on common passerines
… we need to determine the impact of climatic stochasticity on demographic rates. This thesis used available long-term ringing data collected by volunteers, augmented by data from research projects, to investigate the influence of climatic variation on survival of 10 common passerines in …
-
TIME-BASED CONSIDERATION IN CUSTOMER-VENDOR MODELLING
… I rates. We also examined the effects of stochasticity of vendors' deliveries on the total cost of the system in terms of holding and backorder costs. We found that under different conditions of stochasticity, there can be an optimal choice between a one-vendor supply or a two-vendor …
-
Calibration of a microscopic traffic simulator
… function forms were compared. The effect of stochasticity in calibrating the parameter values was also studied. Stochasticity was found to have a significant impact on the optimal parameter values. It was found that though calibration is an intricate process, the performance of the simulator …
-
Approximation and System Identification Techniques for Stochastic Biomolecular Systems
… counts of the species are small, the inherent stochasticity in the occurrence of the reactions plays an important role in the behavior of the system. This stochasticity presents opportunities for system identification, since when a large population of cells is measured, one has many samples …
Page 1 of 10