Improved calorimeter provides accurate thermal measurements of space batteries

Isothermal continuous flow calorimeter measures the thermal characteristics of space batteries undergoing typical orbital cycling. This is 28 times as sensitive as calorimeters previously used

Environmental test planning, selection and standardization aids available

Requirements for instrumentation, equipment, and methods to be used in conducting environmental tests on components intended for use by a wide variety of technical personnel of different educational backgrounds, experience, and interests is announced

An engine trade study for a supersonic STOVL fighter-attack aircraft, volume 1

The best main engine for an advanced STOVL aircraft flight demonstrator was studied. The STOVL aircraft uses ejectors powered by engine bypass flow together with vectored core exhaust to achieve vertical thrust capability. Bypass flow and core flow are exhausted through separate nozzles during wingborne flight. Six near term turbofan engines were examined for suitability for this aircraft concept. Fan pressure ratio, thrust split between bypass and core flow, and total thrust level were used to compare engines. One of the six candidate engines was selected for the flight demonstrator configuration. Propulsion related to this aircraft concept was studied. A preliminary candidate for the aircraft reaction control system for hover attitude control was selected. A mathematical model of transfer of bypass thrust from ejectors to aft directed nozzle during the transition to wingborne flight was developed. An equation to predict ejector secondary air flow rate and ram drag is derived. Additional topics discussed include: nozzle area control, ejector to engine inlet reingestion, bypass/core thrust split variation, and gyroscopic behavior during hover

Research into fundamental phenomena associated with spacecraft electrochemical devices - calorimetry of nickel-cadmium cells Progress report, 1 Oct. 1966 - 31 Dec. 1966

Cycling, charge efficiency, and transducer studies with nickel-cadmium cell for spacecraft power supply system

Settlement of Cancelled War Contracts

https://egrove.olemiss.edu/aicpa_guides/2096/thumbnail.jp

Dual task impairments in vascular dementia

Several studies have shown that people with Alzheimer's disease (AD) demonstrate difficulties in doing two things at once or 'dual-tasking' and that this dual task impairment is insensitive to normal ageing, chronic depression or prodromal conditions like Mild Cognitive Impairment. It is not known, however, if this impairment is specific to AD, or also present in other dementias, such as vascular dementia (VaD). In this study 15 people with VaD, 25 healthy age-matched and 25 healthy young controls were assessed using a paper and pencil dual tasking paradigm and several measures of working and episodic memory. Age had no effect on dual task performance, but the VaD patients demonstrated a significant impairment in dual tasking ability. Performance on the memory measures was instead affected by age with a further deterioration in the VaD patients. Both dual tasking and memory ability were significantly correlated with disease severity, as assessed by the MMSE. These results indicate that performance on the dual task could be a specific indicator of pathological ageing

Movement Patterns of Phrynosoma mcallii and Phrynosoma platyrhinos in Response to Substrate Texture

During the summers of 1999 and 2000 the apparent habitat partitioning of two species of sympatric horned lizards was investigated at the Barry M. Goldwater Bombing Range near Yuma, Arizona. The flat-tailed horned lizard, Phrynosoma mcallii, and the desert horned lizard, P. platyrhinos, overlap in range in portions of the Sonora desert in the southwestern United States. However, upon finer scale examination, it appeared that these horned lizards were partitioning the available habitat according to soil substrate texture. Phrynosoma mcallii appeared to be exclusively found in areas of fine, loose, wind-blown sands, in contrast to P. platyrhinos, which appeared to be associated with areas of hardpan substrates covered by small rocks and pebbles. Subsequently, an experiment was set up to test if soil texture was indeed responsible, at least in part, for the observed partitioning of these lizards among the available habitat. Three experimental treatments were established (Sandy, Rocky, Mixed) which differed only with respect to soil texture. Lizards of both species and sexes were fitted with backpacks of thread and allowed to spool out one pathway in each of the three treatments. Additionally, pathways of P. mcallii found on the Naval Air Facility El Centro CA were also collected. This nearby population of P. mcallii is allopatric with respect to P. platyrhinos. Net displacements, fractal dimensions, and a correlated random walk (CRW) model were utilized to evaluate differences in movement patterns. Similarities in the net displacement and fractal dimension of movement pathways from both species of horned lizards for each of the three treatments suggest substrate composition does not affect species distribution. Additionally, a CRW model severely underpredicted the observed net squared displacement of both P. mcallii and P. platyrhinos among all three treatments and at both study sites, thus indicating that lizards were moving more linearly than would be expected. Other abiotic factors such as temperature or soil moisture could be important variables in habitat preference. Additionally, due to the sister relationship of these species, phylogenetic constraints in morphology and/or behavior may contribute the to lack of differing movement patterns among varying substrates

REVENUE FINANCING OF PUBLIC ENTERPRISES

Courts have been slow to take judicial notice of the growing needs of local communities. Legislatures have restrained municipal corporations from engaging in business enterprises upon the assumption that the object was mere hope of gain, that the investment of municipal funds in such enterprises was simply a speculation, or that the effect was to divert municipal corporations from their legitimate ends and to poach upon the preserves of private enterprise. Novel municipal undertakings have been feared as an entering wedge of state socialism or governmental paternalism. Even when the instrumentality of private adventure was disposed to leave a need unsatisfied, and even when a municipal enterprise was for the benefit of the general public and was not undertaken primarily for profit, novelty in the functions of local government usually met with a judicial veto