CF 6 engine diagnostics

A summary of the activities which led to defining deterioration rates of the CF6 family of engines, a description of what was learned, and an identification of means of conserving fuel based upon the program findings are presented. The program to define the deterioration levels and modes for the CF6 family of engines involved four distinct phases: analysis of inbound engine test results, analysis of airline cruise data, analysis of airline test cell data resulting from testing of refurbished engines, and inspection of engine hardware

Numerical methods of integration applied in the nonlinear dynamic analysis of shells of revolution

Evaluating methods of numerically integrating equations of motion for nonlinear dynamic analyses of shells of revolution by matrix displacement metho

A Survey of Animal Behavior- Related Research and Teaching Activities in North American Agricultural and Veterinary Medical Colleges

A letter questionnaire was used to survey animal behavior-related research and teaching efforts in the U.S.A. and Canadian university animal sciences departments (agriculture) and veterinary medical colleges. The objectives of the eleven questions of the survey were to identify behavior workers and to determine the current and planned levels of emphasis on research and teaching activities in domestic animal behavior. In 1981, questionnaires were mailed to 162 deans and chairs, and 102 were answered and returned. Twenty-three persons were identified as having appointments specifically or primarily in animal behavior, and 99 were identified as having appointments with some animal behavior responsibilities. Twenty-two respondents reported that they offer an undergraduate course in animal behavior, ten of which were colleges of veterinary medicine. The behavior course was required for graduation by six veterinary medical colleges, but only two animal sciences departments taught a required course in animal behavior. Seventeen graduate programs in behavior were identified. Plans to increase the amount of effort in areas related to animal behavior were reported on 32 of the returned questionnaires

Nonlinear dynamic analysis of shells of revolution by matrix displacement method

Nonlinear dynamic analysis of shells of revolution by matrix displacement metho

An experimental study of the flow variables at the minimum pressure station of ninety-degree pipe bends

Flow variables related to minimum pressure in circular pipe bend

A rapidly converging triangular plate element

Shear stress analysis of triangular plate element

Skin Scan Digital Dermoscopy Skin Cancer Training Software

Computational Infrastructure and Informatics Poster SessionSkin Scan digital dermoscopy skin cancer detection software, developed by Rolla's S&A in collaboration with Missouri S&T, can now detect critical features of early melanoma. There is also a need for diagnostic help for the other 95+% of skin cancers. The need for diagnostic improvement in screening for skin cancers may be greatest for those nurse practitioners who now see the majority of elderly patients in some underserved areas. Underserved clinical arenas with a greater than average incidence of skin cancer and a significant number of nurse practitioners include both civilian and military clinics in the rural Midwest, where S&A is located. This innovative software is a timely development designed to solve problems every healthcare consumer has encountered: too long a wait to get specialty care, uncertainty about the diagnosis when one does get the care, and too much overall expenditure in providing the care. Our ongoing research includes a completed Phase II project in melanoma detection and a Phase I study for basal cell carcinoma, submitted December, 2009. The BASAL features for basal cell carcinoma (Blue-gray ovoids, Arborizing telangiectasia, Semitranslucency, Atraumatic ulceration, and Leaf-like structures/dirt trails), described by Stoecker and Stolz, Archives Dermatology 2008, will be programmed during Phase I of the new proposal and incorporated in our early detection system. Additional work during Phase I will allow acquisition of more clinical and dermoscopy images, will allow training of the first nurse practitioner, and will allow development of a hierarchical neural network for diagnosis of basal cell carcinoma

Sensitive sexualities: dichotomized discourse in the erasure of bisexuality

A combination of Q methodology and a Think Aloud task explored how cultural knowledge about bisexuality is constructed and maintained. Q methodology revealed positive interpretations of bisexuality. Critical Discourse Analysis of the Think Aloud task however, exposed the maintenance of dualistic categories of sex, gender and sexuality acting as ‘operating systems’ and strategically guiding the social representation of bisexuality as ‘non-existent’, ‘deviant’, ‘abnormal’ and/or ‘promiscuous’. The findings of this study suggest that overt heterosexism is not becoming extinct; instead it has found rather subtle ways of incorporating itself into ‘liberal’ discourses

Locomotion disorders and skin and claw lesions in gestating sows housed in dynamic versus static groups

Lameness and lesions to the skin and claws of sows in group housing are commonly occurring indicators of reduced welfare. Typically, these problems are more common in group housing than in individual housing systems. Group management type (dynamic versus static) and stage of gestation influence the behavior of the animals, which in turn influences the occurrence of these problems. The present study compared prevalence, incidence and mean scores of lameness and skin and claw lesions in static versus dynamic group housed sows at different stages of gestation during three consecutive reproductive cycles. A total of 10 Belgian sow herds were monitored; 5 in which dynamic groups and 5 in which static groups were utilized. All sows were visually assessed for lameness and skin lesions three times per cycle and the claws of the hind limbs were assessed once per cycle. Lameness and claw lesions were assessed using visual analogue scales. Static groups, in comparison with dynamic groups, demonstrated lower lameness scores (P<0.05) and decreased skin lesion prevalence (24.9 vs. 47.3%, P<0.05) at the end of gestation. There was no difference between treatment group regarding claw lesion prevalence with 75.5% of sows demonstrating claw lesions regardless of group management. Prevalences of lameness (22.4 vs. 8.9%, P<0.05) and skin lesions (46.6 vs. 4.4%, P<0.05) were highest during the group-housed phase compared to the individually housed phases. Although the prevalence of lameness and skin lesions did not differ three days after grouping versus at the end of the group-housing phase, their incidence peaked during the first three days after moving from the insemination stalls to the group. In conclusion, the first three days after grouping was the most risky period for lameness incidence, but there was no significant difference between static or dynamic group management

A Survey of Animal Behavior-Related Research and Teaching Activities in North American Agricultural and Veterinary Medical Colleges

A letter questionnaire was used to survey animal behavior-related research and teaching efforts in U.S.A. and Canadian university animal sciences departments (agriculture) and veterinary medical colleges. The objectives of the eleven questions of the survey were to identify behavior workers and to determine the current and planned levels of emphasis on research and teaching activities in domestic animal behavior. During 1981, questionnaires were mailed to 162 deans and chairmen, and 102 were answered and returned. Twenty-three persons were identified as having appointments specifically or primarily in animal behavior, and 99 persons were identified as having appointments that had some responsibilities in animal behavior. Twenty-two respondents reported that they offer an undergraduate course in animal behavior, ten of which were colleges of veterinary medicine. The behavior course was required for graduation by six of the veterinary medical colleges, but only two animal sciences departments taught a required course in animal behavior. Seventeen graduate programs in behavior were identified. Plans to increase the amount of effort in areas related to animal behavior were reported on 32 of the returned questionnaires