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 51 for “"holding time"”.
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THE EFFECT OF HOLDING TIME OF WHOLE MARE BLOOD ON CONCENTRATION OF PROGESTERONE
<p>The objective of this study was to evaluate if holding time had an effect on mare whole blood progesterone levels. This research was completed using 12 mares, with blood being collected on multiple cycles to get a total of 28 separate blood collections. At each collection 5 vials of blood were …
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The effect of process conditions, time, temperature, and rates of temperature rise, on the exhaustion of disperse dye on polyester yarn under high-temperature dyeing conditions
The effect of process conditions, temperature, time and rate of temperature rise, on the exhaustion of disperse dye on polyester yarn under High-Temperature dyeing conditions was investigated. Two ply spun type Dacron 54 polyester yarn was dyed with Disperse Red 60 in 0.5 g/l dye bath concentration …
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Scale prevention in sea water evaporators: Part I design and construction
… heated under pressure for a definite period of time, and then it is released to atmospheric pressure with aeration. This physical pretreatment process removes the carbon dioxide that is evolved from the decomposition and hydrolysis of the carbonate and bicarbonate content of sea water, and thus …
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Handover in digital cellular mobile communication systems
… system. These include the cell residence time of both new and handover calls, channel holding time and the average number of handovers per call. It is shown that the cell residence time can be described by the generalized gamma distribution, while the channel holding time can be best …
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Production of a nanostructured copper by Spark Plasma Sintering
… mechanisms as well as that of heating rate and holding time on the structural evolution has been investigated. Particle rearrangement, local deformation, bulk deformation and sintering are the SPS mechanisms occurring successively during the sintering process of the atomized copper. These …
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Standardization of battered seafood portions for use in fast food restaurants
… the frying fat under various conditions. Cooking time and temperature are two important factors to determine the quality of battered fish portions. Fat absorption depends on cooking time, surface area of the food, the quality of frying fats and oils and holding times. The amount of fish portions …
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Evaluation of hydroxyapatite (HA) from waste eggshell strengthened with ultra high molecular weight polyethylene (UHMWPE) by using injection molding process
… temperature, injection pressure, injection time and holding time have been investigated. It was found that, the result from Taguchi’s Method, the optimized parameter for injection temperature, injection pressure, injection time and holding time were 220˚C, 0.6MPa, 7s and 5s respectively. …
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Seminal plasma and freeze-thaw injury to bovine sperm
… at 32°C for 240 min post-collection, at which time semen was cooled to 5°C, glycerolated, and then frozen in .5-ml French Straws using N₂ vapor. Experiment II, using 18 ejaculates from 10 bulls, was conducted identically to Experiment I, except semen was cooled to 5°C immediately after each …
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Ultrasonic and electroplating approach for washcoat of γ-alumina and nickel oxide (nio) catalyst on fecral substrate for catalytic converter
… ethanol solution with frequency of 35 kHz and holding time of 1, 1.5, 2, 2.5 and 3 h respectively, electroplating technique (EL), ultrasonic bath during electroplating (UBdEL) and combination of UB and EL which is called by UB+EL technique that conducted by sulphamate type solution, current …
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Microstructural evolution and physical behavior of a lithium disilicate glass-ceramic
… of 30 °C/min heating rate, and (2) a protracted holding time (14 min vs. 7 min) at the isothermal temperature of 840 °C. Five other groups of different heating schedules with lower-targeted temperatures were evaluated to investigate the microstructural changes. For each group, the crystalline …
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Carbo-nitride precipitation and its effect on matrix transformations in high strength-high toughness 300M steel
… has been austenitised at 925 °C for increasing holding times from 1h to 4h and 1025 °C for 2h holding time. Microstructures were examined by optical and scanning electron microscopy. It has been found out that higher austenitisation temperature alter the microstructure, the fine (<600 nm) …
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Preparation and characterization of natural hydroxyapatite from tilapia bones and scales for biomedical applications
… the calcination parameters such as temperatures, holding time and heating rate were manipulated. Results obtained indicated that treatment at 600 °C for 1 hour with 10 °C/min increments showed better characteristics for the desired HA as determined by Field Emission Scanning Electron Microscopy …
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Effects of reinforcement materials and matrix particle sizes on mechanical properties and wear of recycled aluminum chips
… aging temperature is 175 °C with various aging holding time. Five aging holding times, namely, 2, 4, 6, 8, and 10 h, were selected. The optimal aging holding time is 4 h, then the compression strength was 300 MPa. Finally, wear test was conducted for the milled product. Three loads were used (5, …
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Investigation of Ultracold Rubidium Atoms in a Pulsed Far off Resonance Trap
… MOT parameters such as FORT laser power, loading time, storage/holding time, detuning of the primary MOT laser frequency, and repump laser intensity are investigated. There are about 1.5×10<sup>7</sup> ultracold rubidium atoms in the MOT. At 7 Watts FORT laser power, about 8% of the atoms are …
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Gendered expectations for gendered companies: the effect of the grammatical gender of company names on the stock price momentum of Latin American and Spanish stocks
… utilizing different lengths of observation and holding time, as well as different calculation frequencies (by days and by months) to test for robustness of the result. Across different strategies, masculine-named companies consistently display higher momentum than feminine-named companies. …
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Incorporating cycle time uncertainty to improve railcar fleet sizing
… company can be improved by incorporating transit time variability into the fleet sizing model. Additionally, we show that fleet sizes can be reduced by accurately characterizing the distributions of the underlying transit and customer holding time data. Finally, we show the potential value of …
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The effect of sintering temperature on potassium feldspar addition into claytan porcelain
… 1100oC with heating rate of 10oC/min and 1 hour holding time. The samples were characterised and analysed using mechanical testing, physical analysis and observation of the surface morphology by field scanning electron microscope (FESEM). The results show that the bulk density and modulus of …
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Cr(VI) Generation and Stability in Drinking Water
… to be the most effective preservation when a holding time of 14 days is considered. Apart from proper Cr(VI) preservation, sampling at an appropriate site is important for determining the public's exposure to Cr(VI). The proposed MCL for Cr(VI) in the state of California will be monitored at …
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Negative Temperature Programming using Microwave Gas Chromatography
… as high as 450 degree, and 1 min cool-down times from 300 to 50 degree can be achieved. In conventional GC, only positive temperature programming is used because the oven cools down slowly due to the great thermal mass of the oven. Short cool-down time in microwave-heating GC makes it …
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Mechanism of anisotropic shrinkage during sintering of metalli powders
… defects. It also varies during the isothermal holding time. This discrepancy is attributed to the defectiveness introduced by cold compaction, that increases diffusivity through the activation of dislocation pipe mechanism, which is particularly intense below the Curie. This interpretation may …
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