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 1577 for “"Carriers"”.
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Cutter, carriers and bucket brigades ...
… ants sampled closer to the nest, suggesting that carriers either cut fragments in sizes corresponding to their body mass prior transport, or transferred them to nestmates of different size after a short carrying distance. During transport, a worker takes a fragment with its mandibles at one end …
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Possible carriers in mouse erythrocytes
Early qualitative erythrocyte permeability studies (Gryns, 1896; Hedin, 1897) revealed the wide range of non-electrolyte permeability rates across a cell membrane composed of lipid molecules. Theoretically, water-soluble non-electrolytes such as glycerol, ethylene glycol and erythritol would …
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Synthetic porphyrins as oxygen-carriers
… their ability to model myoglobin as oxygen-carriers. Extensive structural studies have been undertaken using proton n.m.r •• The use of deuteriopyridine as a solvent for porphyrin n.m.r. experiments has been examined. It is shown that this solvent has several advantages and that the …
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Measuring performance of transportation carriers
… We also investigate ChemiCo's existing carriers in the Chinese trucking market. An Analytical Hierarchy Process (AHP) is used to evaluate the key measurements of carrier performances for various customer segments and make recommendations. The thesis proposes a comprehensive set of …
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Operational risk management of bulk carriers
… estimating the current operational risk of bulk carriers. Hence, a high level risk assessment has been conducted for evaluating the safety performance of dry bulk cargo transportation. This included the preparatory step for setting the problem's boundary limits, hazard identification for the …
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Heat shock proteins as immunological carriers
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Biology, 1998.
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Balancing container inventories for ocean carriers
… are numerous, especially for the ocean carriers. The use of containers adds a high degree of versatility to their ships and increases the utilization of the vessels by means of a remarkable decrease in the loading and unloading operations time. However, the introduction of the containers …
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Estimation of hidden carriers of infectious diseases
We consider the general problem of estimating missing information in a given dataset. We focus specifically on the problem of estimating the asymptomatic segment of the population that is COVID-19 infected, given datasets for which subjects have self-selected to be tested, that is, the data do not …
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Relaxation Dynamics of Photoexcited Carriers in Graphene
… looking at charge dynamics of photo-excited carriers in graphene. So in the third chapter, a homebuilt near-infrared pump and mid-infrared probe spectroscopy system is described which is designed to have a high temporal resolution to study photo-excited carriers in graphene and other novel …
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Simulation of hot carriers in semiconductor devices
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1995.
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The second-hand market for bulk carriers
… attempts to explain the resale prices of bulk carriers. The effects of the physical characteristics of ships on second-hand values, along with those of the prevailing freight rates in the market, and those of ship operating costs are theoretically discussed. The results of previous studies on …
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Nanocarbons as charge carriers in organic solar cells
… composites with fullerenes (C60, C70) as charge carriers in OPV to improve power conversion efficiency (PCE). Functionalized multi-walled carbon nanotubes (MWNTs) are used as additives to C70 to form a weak bonded composite, which result in better absorption and better phase separation. …
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The design of synthetic transmembrane carriers for anions
This thesis reports a number of novel receptors found to facilitate the transmembrane transport of anions in synthetic vesicle systems. A series of structurally simple thioureas were found to function as efficient Cl-/NO3- and Cl-/HCO3- antiporters while the corresponding ureas were inactive. Of …
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Nanostructured carriers for the delivery of antibacterial agents
Contains fulltext : 159479.pdf (Publisher’s version ) (Open Access)
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Initiating mutations and chemoprevention in BRCA1 mutation carriers
BRCA1 mutation carriers have a significant lifetime risk of developing breast cancer. Currently, these women are offered risk-reducing bilateral mastectomies, which have significant physical risks and psychosexual implications, or chemoprevention strategies that have little evidence to support …
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Functional and mechanistic studies of human mitochondrial carriers
… and characterisation of human mitochondrial carriers is essential for the understanding of these proteins in the context of human health and disease. There are many unanswered questions and contentious issues with regards to the members of the SLC25 family, including the verification of …
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Analysis of market characteristics for capesize bulk carriers
Iron ore and coal play a key role in the global economy and their consumption per capita is indicative of a country's standard of living. Their vast majority is transported by sea, making many countries rely on the efficiency and cost of transportation by capes. The cape market has closely followed …
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Structural and economic analysis of capesize bulk carriers
Structural failures of bulk carriers continue to account for the loss of many lives every year. Capes are particularly vulnerable to cracking because of their large length, their trade in high density cargos, and the high rates of cargo operations. Rapid loss often occurs allowing little reaction …
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