Pyrotechnic device provides one-shot heat source

Pyrotechnic heater provides a one-shot heat source capable of creating a predetermined temperature around sealed packages. It is composed of a blend of an active chemical element and another compound which reacts exothermically when ignited and produces fixed quantities of heat

Analytical comparison of Rankine cycle space radiators constructed of central, double, and block-vapor-chamber fin-tube geometries

Weight, heat transfer, and efficiency comparison for Rankine cycle space radiators constructed of three different finned tube geometrie

Analysis and design of a flat central finned-tube radiator

Computer program based on fixed conductance parameter yields minimum weight design. Second program employs variable conductance parameter and variable ratio of fin length to tube outside radius, and is used for radiator designs with geometric limitations. Major outputs of the two programs are given

Functional and Psychiatric Correlates of Comorbid Post-Traumatic Stress Disorder and Alcohol Use Disorder.

Post-traumatic stress disorder (PTSD) and alcohol use disorder (AUD) are common comorbid conditions that affect large segments of the population. Individuals with comorbid PTSD/AUD face greater clinical and functional stressors than those with diagnoses of either PTSD or AUD alone. The purpose of this article is to review the phenomenology and functional associations of PTSD/AUD and address the common social, occupational, and psychological concerns associated with both disorders. Given the increased problems associated with comorbid PTSD/AUD, clinical and research efforts should focus on targeting functional and psychosocial problems in conjunction with psychiatric symptoms

Computer program for preliminary design and analysis of V/STOL tip-turbine fans

Computer program for design and analysis of V/STOL tip turbine fan

Analysis of low-temperature direct-condensing vapor-chamber fin and conducting fin radiators

Analysis of flat, direct-condensing finned-tube space radiator with vapor chamber, and central fin tube geometries for low temperature Rankine space power electric generating syste

Wound Necrosis and Peripheral Microangiopathy due to Delayed-onset Heparin-induced Thrombocytopenia Following Arterial Bypass Surgery

AbstractIntroductionDelayed-onset heparin-induced thrombocytopenia (HIT) is a rare side effect of heparin. This prothrombotic condition can present its first signs up to three weeks following heparin administration even if heparin use has been stopped.ReportA 54-year-old claudicant patient underwent a suprageniculate limb bypass with heparin administration. Despite bypass patency, our patient developed recurrent wound necrosis and kept complaining of ischemic pain. The patient then developed toe necrosis and underwent leg amputation.ConclusionDelayed-onset HIT is a rare condition that should be looked for and promptly managed in patients with peripheral vasculopathy following heparin administration

Configurable Process Models as a Basis for Reference Modeling

Off-the-shelf packages such as SAP need to be configured to suit the requirements of an organization. Reference models support the configuration of these systems. Existing reference models use rather traditional languages. For example, the SAP reference model uses Eventdriven Process Chains (EPCs). Unfortunately, traditional languages like EPCs do not capture the configuration-aspects well. Consider for example the concept of "choice" in the control-flow perspective. Although any process modeling language, including EPCs, offers a choice construct (e.g., the XOR connector in EPCs), a single construct will not be able to capture the time dimension, scope, and impact of a decision. Some decisions are taken at run-time for a single case while other decisions are taken at build-time impacting a whole organization and all current and future cases. This position paper discusses the need for configurable process models as a basic building block for reference modeling. The focus is on the control-flow perspective. © Springer-Verlag Berlin Heidelberg 2006