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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 32 for “"breaking strength"”.
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Skin breaking strength in broiler chickens
… to examine factors contributing to skin strength of meat-type chickens. Skin breaking strength was initially measured in lines of chickens divergently selected for high (H) and low (L) juvenile body weight, their reciprocal crosses (HL and LH), and an F₂ generation derived from HL and LH …
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The effects of permanent creasing on two types of 65/35 polyester- cotton blends as measured by appearance, abrasion resistance and breaking strength
… retention, Accelerator abrasion resistance, and breaking strength. These specimens were evaluated in the original form and after one, three, and nine launderings. The crease appearances were rated by a panel of three judges and it was found that all creases of both fabrics whether new or …
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Identifying a non-invasive measure of bone status in dairy cattle
… (DXA), BMC with radiographic photometry (RP), breaking strength with mechanical methods, and mineral content with chemical procedures. Estimates of BMC obtained with RP and DXA were poorly related to chemical measures of actual BMC and to measures of breaking strength. In caudal vertebrae 14 …
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Manufacturing bio-tiles
… to determine whether bio-tiles that meet the strength requirements of conventional ceramic tiles could be met using the ureolysis MICP pathway. The ureolytic activity of Sporosarcina pasteurii was controlled by centrifuging and dilution with fresh yeast extract media. Bio-tiles can be made …
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Polymerization-Crosslinking Fabric Finishing, With Pad-Dry-Cure, Using Nonformaldehyde Btca/IA/AA Combinations to Impart Durable Press Properties in Cotton Fabric
… and the finished fabric's property variable, breaking strength, tear strength, wrinkle recovery angle whiteness index, and durable press rating. Based on the results of the reduced regression equations and range dispersion of mean values of finished fabric properties. The results of the study …
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Antibacterial and Laundering Properties of Ams and Phmb as Finishing Agents for Healthcare Workers Uniforms
… thickness), and one durability property (i.e., breaking strength loss due to abrasion) of a 65/35% polyester/cotton blend fabric treated with two commercially available antibacterial agents (i.e., 3-trimethoxysilylpropyldimethyloctadecyl ammonium chloride) or AEGIS Microbeshield, (AMS) and …
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Calcium Dynamics Affecting Egg Production, Skeletal Integrity, and Egg Coloration in Ring-necked Pheasants (Phasianus colchicus)
… We applied a 3-point bending test to find femur breaking strength and examined structural bone properties. Calcium and breaking strength were linearly associated. Femurs of hens given lower calcium diets were easier to break. Structural properties of cortical bone were not correlated with dietary …
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The Impact Of Dietary Phytase Supplementation On Skeletal Biomechanics And Characteristics In Growing Swine And Mice
… and nutritional factors all influence bone strength and mass, particularly in early life. Musculoskeletal diseases, such as osteochondrosis and osteoporosis, are debilitating to humans and animals and create a substantial financial burden on the country's health care system and food animal …
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Genotypic differences in lodging and Mechanical strength in stalks and Peduncles of Pearl millet (Pennisetum glaucum (L.) R. Br.)
Differences were found in lodging and mechanical strength tests among pearl millets, pearl millet x Napier grass (PMxNG) lines, test crosses and sorghum. In 1987 field lodging ranged from 0 to 98%. Test crosses with PMxNG lines lodged worse on average than the millets or sorghum, but they were …
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Genotypic differences in lodging and Mechanical strength in stalks and Peduncles of Pearl millet (Pennisetum glaucum (L.) R. Br.)
Differences were found in lodging and mechanical strength tests among pearl millets, pearl millet x Napier grass (PMxNG) lines, test crosses and sorghum. In 1987 field lodging ranged from 0 to 98%. Test crosses with PMxNG lines lodged worse on average than the millets or sorghum, but they were …
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Role of metal alkoxides as primers in polymer/metal adhesion
Steel is a material with a high tensile shear strength and is relatively inexpensive to produce. Further, it is widely used in industry and its use in adhesive bonding applications is increasing. Adhesively bonded structures offer several advantages over mechanical fastening such as reductions in …
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Carbon fiber surface treatments for improved adhesion to thermoplastic polymers
… examined by STEM, angular dependent XPS, and breaking strength measurement before and after commercial surface treatment. The fibers from the three companies were anodized to create similar surface chemistry on each fiber. XPS was used to compare the surface chemistry after anodization. …
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Effects of Maternal Dietary Fats and Antioxidants on Growth Rate and Bone Development of Commercial Broilers
… were body weight, tibia weight and length, and breaking strength (stress, force, energy, bone wall, and diameter). Chick tissue from hens fed a MO and MA diet exhibited greater (P<0.01) amounts of DPA (22:5n3), DHA (22:6n3) and total n-3 fatty acids than the remaining dietary treatments. Tissues …
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A comparative study of athletic apparel made from cotton/flax, cotton/polyester, and polyester/flax blends
… characteristics, such as tearing and tensile strength, and comfort characteristics, such as wicking, vapor transmission, and air permeability. Currently, most sports apparel is made from a blend of polyester or other synthetic fibers. Through examining the uniqueness of natural fibers, such as …
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Biomimetic composite structure to simulate tendon performance
… of the composites exceeded the natural tendon's breaking strength and elongation to failure. Through biomimicking, a composite was manufactured with a higher initial stiffness and strength than the crimped nylon fiber. The shape of the stress-strain curves of tendon and the synthetic composites …
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Structural Features Related to Tree Crotch Strength
… physical parameters correlated with crotch strength. Parameters measured included the diameter of the branch and of the trunk above and below the crotch, angle of the branch and branch bark ridge, and the length of the crotch and the branch bark ridge. The force required to break each sample …
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The effects of tensile preloads on the impact response of carbon/epoxy laminates
… from near zero to approximately 60% of ultimate breaking strength were applied to specimens which were impacted at energies of 3.4, 4.5 and 6 Joules (2.5, 3.3 and 4.4 ft- Ibs). The amount of damage induced into the specimen was evaluated using instrumented impact techniques, x-ray inspection and …
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A feasibility study of the acousto-ultrasonic technique to assure the quality of adhesively bonded sheet metal
… consistent correlation of BQ values with the breaking strength of the adhesive joint failing in mixed mode failure. The BQ values were calculated from the SWF (stress wave factor) values generated by the AU technique. No correlation was observed between the SWF values and the breaking …
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Geo-tiles: manufacturing tiles from copper mine tailings using geopolymerisation
… feasibility was assessed using mechanical strength parameters and tile testing techniques obtained from international, South African and American standard accreditation bodies. The primary mechanical strength parameter investigated was modulus of rupture (MOR), which depends on the tile's …
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A Forty-Nine Day Evaluation of Bio-Mos® Replacement of Roxarsone in a Commerically Based Broiler Feeding Program
… on broiler production, gut morphology and bone strength. Three thousand and ten broilers were randomly assigned to 1 of 5 dietary corn-soybean meal based treatments: 1) negative control (NEG), basal diet; 2) positive control (POS; NEG + 27 ppm Bacitracin MD); 3) roxarsone (ROX; POS + 50 ppm of …
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