Static Dissipative Cable Ties, Such as for Radiation Belt Storm Probes

An article, such as, but not limited to, a cable strap to wrap, support, or secure one or more wires or cables, is formed by cyclically heating and cooling and/or irradiating an article formed of a static dissipative ethylene tetrafluoroethylen (ETFE) resin, to reduce an electrical resistivity and/or to increase a tensile strength of the article

Earth Pipe Cooling Strategy in Buildings: A Sustainable Approach

Abundant energy supply is one of the preconditions of economic growth, however, the economic growth in turn leads to higher energy consumption to support higher living standard. The energy demand is increasing at an alarming rate throughout the world, which may lead to scarcity of energy in near future. Most of this energy is used in buildings for heating and cooling. Therefore, it is important to adopt a system to save energy in buildings without using any habitual mechanical devices. Passive air cooling is such a system assists us to save energy in passive process. Earth pipe cooling strategy is one of them, which can cool a space with minimal energy. In this strategy, air comes through a pipe inlet and passes underground via buried pipes, transfers heat to the earth (soil), gets cooler and goes to the room through pipe outlet. This paper reviews the earth pipe cooling performance in different climates by an intensive literature survey. The performance was also compared with other common passive air cooling strategies used in buildings. The findings of the study recommend an optimum passive air cooling guidelines, and passive air cooling products to the occupants of the buildings. Keywords: Cooling Performance; Passive Air Cooling; Energy Consumption

IN VITRO BULB PRODUCTION IN HIPPEASTRUM (HIPPEASTRUM HYBRIDUM)

An in vitro experiment was conducted to find out the optimum hormonal supplement and sucrose level for the bulb production of Hippeastrum. Murashige and Skoog medium supplemented with different hormone concentrations of BAP (0.0, 2.0, 4.0, 6.0 and 8.0 mg/L) and CCC (0.0, 125, 250 and 500 mg/L) and sucrose levels (30, 60, 80, 90 and 110 g/L) were used in this study. Sucrose level at 90 g/L produced the maximum average weight as well as the highest regeneration percentage. The increasing rate of CCC increased the number and average weight of bulb. The maximum bulb formation observed in media supplement with 6.0 mg/L BAP and 500 mg/L CCC fortified with 90 g/L sucrose

Measurement of a reaction-diffusion crossover in exciton-exciton recombination inside carbon nanotubes using femtosecond optical absorption

Exciton-exciton recombination in isolated semiconducting single-walled carbon nanotubes was studied using femtosecond transient absorption. Under sufficient excitation to saturate the optical absorption, we observed an abrupt transition between reaction- and diffusion-limited kinetics, arising from reactions between incoherent localized excitons with a finite probability of ∼0.2 per encounter. This represents the first experimental observation of a crossover between classical and critical kinetics in a 1D coalescing random walk, which is a paradigm for the study of nonequilibrium systems. Copyright 2013 The American Physical Society. This is the author's version of a paper accepted for publication in Physical Review Letter

Upper gastrointestinal hemorrhage: Have new therapeutics made a difference?

BACKGROUND: To explore the distribution of etiologies and risk factors of upper gastrointestinal hemorrhage (UGH) in the context of new pharmacologic therapies that may alter the risk of UGH. METHODS: Retrospective study performed on eligible UGH inpatients at 2 academic medical centers, between July 1, 2001 and June 30, 2003. Administrative data and chart review were used to identify demographics, UGH risk factors, and UGH etiologies. Bivariate and multivariate analyses were performed to describe distributions and associations of risk factors and etiologies. RESULTS: UGH was identified in 227 subjects, with ED (n = 99; 44%), peptic ulcer disease (PUD) (n = 75; 33%), and variceal bleeds (n = 39; 17%) accounting for the majority of bleeds. Known risk factors for UGH occurred in 70% (n = 156) of subjects (prior UGH 43% [n = 90], nonsteroidal anti-inflammatory drug (NSAID) use 23% [n = 52], aspirin [ASA] use 25% [n = 57], NSAID + ASA use 6.6% [n = 15]), while 19% (n = 42) were using a proton-pump inhibitor (PPI) and 5% (n = 11) a cyclooxygenase-2 (COX-2) inhibitor. Subjects at site 1 were more likely to have ED (odds ratio [OR], 7.1; P < 0.001) and less likely to have variceal bleeding (OR, 0.12; P = 0.009) in multivariate analyses. Preventive therapy did not differ between sites. CONCLUSIONS: Unlike older studies, PUD was not the most common etiology, suggesting that advances in Helicobacter pylori (H. pylori) eradication may affect the epidemiology of UGH. Despite advances in therapeutics of acid-related disease, ED accounted for the majority of UGH. Most subjects had risk factors for UGH and most were not receiving protective therapy. Large between site-differences in the distribution of etiologies existed