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 134 for “"Extender"”.
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Evaluation of MEPB fuel as a gasoline extender
Includes bibliographical references (pages 97-101).
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Optimization of the Control Strategy for a Range Extender Vehicle
… of the control stratgy for a Plug-In Range Extender in order to decrease CO2 emissions with respect to the regulations. Therefore, the vehicle is equipped with a gasoline combustion engine, a high voltage battery and two electric motors. One electric motor propells the front axle and the …
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Evaluation of Different Concentrations of Egg Yolk in Canine Frozen Semen Extender
… concentrations of egg yolk in canine freezing extender void of glycerol, a commonly used cryoprotectant, by examining the motility and morphology throughout the freezing process: initial (baseline after extender added), post-cool (after three hours at 5"C) and post-thaw (after freezing.) …
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Triple Scissor Extender : A 6-DOF lifting and positioning robot for autonomous aircraft manufacturing
This thesis presents the Triple Scissor Extender (TSE), a novel 6-DOF robotic mechanism for reaching high ceilings and positioning an end-effector. The end-effector is supported with three scissor mechanisms that extend towards the ceiling with 6 independent linear actuators moving the base ends of …
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The Triple Scissor Extender Robot Arm : solving the last one foot problem in robotic manipulation
… for an expandable arm, the Triple Scissor Extender Robot Arm (TSERA), is developed to access a confined area through a narrow channel. The robot consists of a series of expandable segments each of which is able to extend and tilt. Thus, the robot can elongate its structure along a narrow, …
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The combinative effect of soluble suLeA glycan and specialized bovine semen extender, FSRD4+, on bull sperm quality
… of our objectives was to determine if a liquid extender, FSRD4+, could extend the lifespan of sperm by days. Since longevity with minimal sperm damage was an ultimate goal, we also tested the effect on longevity by adding oviduct glycans to medium and extender. Before fertilization and while …
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Effect of different disaccharides as energy supplements in tris-egg yolk semen extender on the quality of cryopreserved boer goat spermatozoa
… and concentration of energy supplements in the extender. The aim of the study was to improve the protocols for cryopreservation of Boer goat spermatozoa using different disaccharides concentrations as supplements in tris- egg yolk extender. Two experiments were carried out to investigate the …
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Long-term storage of liquid boar spermatozoa
… was conducted to: (a) determine the optimum extender system for two extenders that will maintain the highest level of cellular integrity when stored at either 5C or 15C for a minimum of 72 hr; (b) evaluate the fertilizing capacity of stored spermatozoa using the optimum extender system; (c) …
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Effect of Avocado (Persea americana Mill) oil inclusion in the Tris-based extender on the quality of Boer goat semen stored at different temperatures
Semen extenders are chemical mediums used for preserving, and protecting spermatozoa against different shocks while processing, storing and transportation for use in artificial insemination (Raheja et al., 2018). There are challenges with the preservation of goat semen for Artificial Insemination …
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Chain Extension of Polyamide-6 & Polyamide-6/Organoclay Nanocomposites. Control of thermal degradation of polyamide-6/organoclay nanocomposites during extrusion using a novel chain extender
… investigated. In this research, a novel chain extender (Joncryl ADR 3400) has been used to improve thermal stability of PA-6 and PA- 6/organoclay nanocomposites during melt compounding. The materials were compounded using a linear twin extruder and various laboratory scale mixers. The effects …
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Determination of the effects of caffeine C1, 3. 7- trimethylxanthine in Tris-based egg yolk extender and different incubation intervals on the quality of cryopreserved bull semen
Cryopreservation is a technique used to maintain the structure and function of cells by halting their metabolism and enzymatic activity at cryogenic temperatures. Cryopreservation induces structural and functional damage to bovine spermatozoa, resulting in reduced post-thaw fertility potential. …
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Testing the accuracy of the emerging market scoring model for measuring and predicting financial distress for South African firms
… groups of 31 firms each, known as the extender and non-extender groups, for the period ranging from the financial years ended 2017 to 2020. Firms in the extender group extended the release of their financial results for the financial year ended 2020, signalling possible financial …
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The Use of Ceftiofur Sodium in the Extension and Cooled Storage of Equine Semen: Its Effects on Motion Characteristics, pH, Osmolality, and Bacterial Growth
… the addition of antibiotics to the semen extender is warranted to reduce bacterial load and prevent further growth. Naxcel® (ceftiofur sodium, Pfizer Inc., New York, NY) is a third generation cephalosporin antibiotic with high antibacterial activity and a broad resistance to β-lactamases. …
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Cryopreservation of Domestic Cat Epididymal Spermatozoa
… of this research was to identify a semen extender that contained little to no egg yolk and could still effectively freeze domestic cat epididymal spermatozoa, for the purpose to sort spermatozoa into X and Y, using flow cytometry. In the first experiment we compared a TesT (Tes + Tris) 20% …
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The compressive strength of fly ash concrete and its mineralogy
The use of fly ash as a cement extender in portland cement concrete is well established. Strict requirements are set for the fly ash on its physical properties and chemical composition to ensme its successful application as a partial replacement material for cement. An investigation was undertaken …
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The effect of tris aloe vera (barbadensis miller) gel on chilled and frozen-thawed bull spermatozoa quality
Semen extenders protect sperm from cold shock, osmotic stress, and alterations in membrane fluidity and permeability plus provide energy substrates for sperm metabolism. Egg yolk is one of the most common additives of animal origin that are used for semen preservation, however, it has become a …
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Calcium Carbonate Particle Size Effects on Titanium Dioxide Light Scattering in Coatings
… rate increased modestly as similarly sized extender particles were initially introduced, then dropped at higher extender levels. Data analysis revealed that CPVC was influenced based on the size and amount of the extender particle present, which can be used to predict resin demand of a paint …
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Assessment of Fracture Resistance of Asphalt Overlays through Heavy Vehicle Simulator and Laboratory Testing: Synthetic Fiber and Rubber Modified SMA Mixes
… Pavement (RAP) and an enhanced asphalt-rubber extender, which comprises three primary components: plain soft bitumen, fine crumb rubber and an Activated Mineral Binder Stabilizer (AMBS). The experiment evaluated the fracture resistance of nine mixes designed with different rates of recycled …
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Rational construction by molecular dynamics modeling and simulations of porous adsorbent media for bioseparation
… charged ligands are immobilized onto polymeric extender molecules grafted on the pore surfaces of a base matrix has become a very important method for bioseparations. In this dissertation, a novel fundamental and systematic methodology has been developed that uses the molecular dynamics (MD) …
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