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 28156 for “"period"”.
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Studying Short-Period Comets and Long-Period Comets Detected by WISE/NEOWISE
… the observed objects are a mix of both long-period comets (LPCs) and short-period comets (SPCs), differences in their activity can be used to better understand the thermal evolution that each of these populations has undergone. For the comets that displayed a significant dust tail, we have …
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DEFECTS LIABILITY PERIOD FOR CONDOMINIUM PROJECTS: THE NEED TO EXTEND THIS PERIOD
… defects during the one-year defects liability period. Hence, specifically in residential projects including condominium, developers will impose a defect liability period in the building contract. However, many owners are concerned that the one-year defect liability period is insufficient as …
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The incubation period of AIDS
Item does not contain fulltext
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Addressing Stability Robustness, Period Uncertainties, and Startup of Multiple-Period Repetitive Control for Spacecraft Jitter Mitigation
… converge to zero tracking error when executing a periodic command, or when executing a constant command in the presence of a periodic disturbance. The design makes use of knowledge of the period of the disturbance or command, and makes use of the error observed in the previous period to update the …
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Critical Period for Murine Olfactory Map Formation
… of neural activity during the critical period. In the last few decades, the critical period has been studied extensively. These studies are primarily focused on the development of receptive fields in the cortex. Mechanisms regulating the connection between sensory neurons and their …
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A Program Evaluation of Double-Period Algebra
… to solve this problem by introducing double-period algebra courses with sporadic results. During this program evaluation, I interviewed an administrator and a teacher from two different high schools about the methods they used to begin and evaluate the program; I found that student-teacher …
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초파리 생체시계에서 CLOCK의 PERIOD 결합 도메인의 역할
… 초파리에서는 전사인자인 CLOCK (dCLK)과 CYCLE (CYC)가 결합하여 period (per)와 timeless (tim)의 발현을 촉진하고, PER와 TIM 단백질은 결합하여 CLK/CYC의 활성을 억제함으로써 자신의 발현을 저해하며 하는 되먹임 고리가 TTFL의 핵심 고리를 이룬다. PER/TIM 이합체에서 PER가 CLK/CYC의 활성을 억제하는 역할을 하는데 어떤 생화학적 기전을 통하여 억제하는가에 대한 이해가 많이 부족하다. 본 연구에서는 CLK의 아미노산을 각각 100~200개 정도의 단위로 내부적으로 …
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Competitive multi-period pricing for perishable products
Pricing of a perishable product over a multi-period time horizon is a challenging problem under an oligopolistic market framework. We propose and study a model for multi-period pricing in an oligopolistic market for a single perishable product. Each participating seller in the market has a fixed …
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A long-period magnetotelluric study in California
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric and Planetary Sciences, 1985.
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Real-time Multi-period truckload routing problems
In this thesis we consider a multi-period truckload pick-up and delivery problem dealing with real-time requests over a finite time horizon. We introduce the notion of postponement of requests, whereby the company can postpone some requests to the next day in order to improve its operational …
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Long-Period Gratings as Immuno-Diagnostic biosensors
… index sensitivity of a fiber optic long-period grating. The long period grating couples light from the forward propagating guided core mode of a single-mode fiber into discrete circularly symmetric cladding modes. Due to imperfections in the cladding surface, loss bands are seen in the …
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An analysis of historic period Chickasaw settlement patterns
… horse among the Chickasaw in the post-contact period was a contributing factor in the observed settlement pattern.
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Modelling of optical fibre long-period grafting sensors.
In this thesis a mathematical model of the long-period fibre grating (LPG) sensor has been developed. Numerical simulation of the LPG transmission spectrum behavior is studied when changing the refractive index of the ambient. The attenuation bands are seen to shift to shorter wavelengths as the …
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Predictors of Distress during the Breast Diagnostic Period
… of distress during the breast diagnostic period. A convenience sample of 128 women (60.4%), aged 18-89 years, undergoing core needle or surgical breast biopsy at three hospitals completed a set of nine standardized, self-report questionnaires. Distress was operationalized as anxiety and/or …
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The stability of short-period extrasolar giant planets
A three-dimensional coupled thermosphere-ionosphere model for extrasolar giant planets (EXOTIM) has been developed. This is the first such model reported in the literature. This thesis contains an extensive description of the model and the methods adopted in modelling the different physical …
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The Regulation of Segmentation Clock Period in Zebrafish
… segment length is determined by both clock period and arrest wavefront velocity. How the period of the segmentation clock is regulated is presently unknown, and understanding the mechanism of period setting might yield insight into the nature and function of the segmentation clock. In this …
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