Heat exchanger tubes supported in high vibration environment

Cantilevered structure supports heat exchanger coils against vibration loading while allowing freedom for differential thermal growth. The support channels will accept a variety of coil angles with the same coil pitch, thus reducing the number of parts required. This design, with slight modification, could be used to support parallel rows of straight piping

Propiedad intelectual y conocimientos tradicionales en Bolivia

El trabajo presenta una panorámica completa sobre la posición de los distintos Estados de la Unión Europea en relación con las relaciones familiares entre personas del mismo sexo, examinando, en particular, las legislaciones que admiten el matrimonio en este supuesto, prestando especial atención a la jurisprudencia del Tribunal Europeo de Derechos Humanos

Congregation Beth Ahabah

Student perspectives on worship services from Instructor Jennifer Garvin-Sanchez\u27s Religious Studies 108 Human Spirituality course at Virginia Commonwealth University

Cathedral of the Sacred Heart

Student perspectives on worship services from Instructor Jennifer Garvin-Sanchez\u27s Religious Studies 108 Human Spirituality course at Virginia Commonwealth University

Ekoji Buddhist Sangha

Student perspectives on worship services from Instructor Jennifer Garvin-Sanchez\u27s Religious Studies 108 Human Spirituality course at Virginia Commonwealth University

Evaluation of the Spherical Flange Concept for a Rocket Engine

Due to the inherent tolerance variability of hardware, flange misalignments occur during installation of mating components for a liquid propellant rocket engine. Flange misalignments include axial, lateral, and angular offsets. If these misalignments are high, they can impart significant loads into the two mating components. These significant loads can then be a driver in the design of the propellant ducts. Such was the case for the Rocketdyne RS-83 engine design for the Space Launch Initiative Program. To address this flange misalignment issue, Marshall Space Flight Center joined with Rocketdyne to develop and test a spherical flange system that allows for misalignment, yet reduces loads imparted, and at the same time provides sufficient sealing against leakage. The flange design was tested to evaluate and compare performance parameters such as misalignment and leakage. The environmental conditions ranged from -100 to 400 degrees Fahrenheit (F) with 1000 to 4000 pounds per square inch gage (psig) pressure. The desirable design features will be extracted and synthesized into a new flange design concept. This paper will address the spherical flange design and the test results

Valorización de aceite de ciclo ligero mediante la estrategia hidrotratamiento-hidrocraqueo en dos etapas. Estudio de las condiciones de operación en la segunda etapa

[ES] Las nuevas restricciones medioambientales han afectado muy directamente a la industria del petróleo, obligando a las refinerías a elaborar productos cada vez más respetuosos con el medioambiente. Esto ha repercutido directamente sobre las refinerías, quienes han visto necesaria la implantación de nuevos sistemas que aseguren estas características para sus productos finales. Además aparecen dentro del proceso, corrientes a las que es necesario buscar nuevas salidas debido a que su antigua función ha perdido utilidad o incluso ha quedado obsoleta

Prohoms, propietaris i artesans de camí a la industrialització : la crisi del Gremi de Paraires de Voltregà(Osona), 1760-1796

A la segona meitat del segle XVIII, el treball de la llana, lli i cànem es concentra poderosament a la Catalunya central. El Comú de Voltregà és el major productor de teixits de llana de la Plana de Vic en aquesta època preindustrial. A partir de 1760 apareixen signes de crisi, tot i que Voltregà destina recursos a construccions sumptuàries. El Gremi de Paraires i Teixidors voltreganès s'enfonsa completament entre 1780 i 1810. Els rics prohoms, els propietaris agrícoles i els treballadors seguiran camins distints en el trànsit de la manufactura a la indústria moderna. El terme es divideix en tres municipis. La proletarització dels artesans els subordina als controladors en condicions de misèria. El terme d'artesans es converteix durant la primera fase de la industrialització en un municipi d'obrers que viuran pobrament de les noves fàbriques del canal del Ter.En la segunda mitad del siglo XVIII, el trabajo de la lana, el lino y el cáñamo se concentra pode-rosamente en la Cataluña central. El término de Voltregà es el mayor productor de tejidos de lana de la Plana de Vic en esta etapa preindustrial. A partir de 1760 aparecen signos de crisis, a pesar de que Voltregà destina recursos a construcciones suntuarias. El Gremio de Pelaires y Tejedores voltreganés se desbarata completamente entre 1780 y 1810. Los prohombres, los propietarios agrícolas y los trabajadores seguirán caminos distintos en el tránsito de la manufactura a la industria moderna. El término se fracciona en tres municipios. La proletarización de los artesanos los subordina a los controladores en condiciones de miseria. El municipio de artesanos se convierte durante la primera fase de la industrialización en una población de obreros que vivirán pobremente de las nuevas fábricas del canal del Ter.In second half of century XVIII, the work of the wool, the linen and the hemp are concentrated powerfully in central Catalonia. Voltregà is the greater producer of tweeds of Vic in this preindustrial stage. As of 1760 they appear signs of crisis, although Voltregà destines resources to sumptuary constructions. The Guild of paraires and weavers of Voltregà undoes completely bet ween 1780 and 1810. The greats men, the agricultural proprietors and the workers will follow ways different in the transit from the manufacture to the modern industry. The term is divided in three municipalities. The proletarianization of the craftsmen subordinates them to the controllers in conditions of misery. The municipality of craftsmen becomes during the first phase of industrialization a population of workers who will live poorly on the new ones

QEEG Studies of the Acute Effects of the Visionary Tryptamine DMT

Recent brain imaging studies in Psychedelic Brain Science are breaking new ground in our understanding of neurological substrate of biological consciousness in humans. The emerging field of inner experience and neuroscience is particularly well suited to the reexamination of the actions of psychedelics on subjective conscious experience. This approach is best understood as neurophenomenology. My work over the last few years has focused on the EEG correlates of the visionary tryptamine DMT action.  I believe the researcher must also have the drug experience as part of the experimental protocol, in order to fully understand the richness of the phenomenon. The objective of this exploratory research was to examine the QEEG correlates of the psychoactive smoked inhalation of exogenous DMT action.  Known as a potent visionary tryptamine, DMT  is ubiquitous in nature and has also been localized in the brain and peripheral tissues of mammals, including humans. The exact function of this endogenous DMT is the subject of ongoing neuropharmacological  research. Three sources of DMT were tested: high purity synthetic 5-MeO- DMT, Bufo 5-MeO-DMT (an extract from the Sonoran desert toad venom, Bufo alvarius), and N,N- DMT from a natural extract of the Acacia tree Mimosa hostilis  root bark. The DMT was delivered by smoked inhalation (vaporization). The rapid onset (10-20 sec), short acting  (5-15 min.), and reversible nature of the effects made such a QEEG study feasible. DMT dosage was adjusted to elicit an effective psychedelic experience (ca. 20-30 mg for N,N-DMT; 2-5 mg for synthetic 5-MeO-DMT, and 30-40 mg for the Bufo 5-MeO-DMT material). Healthy volunteers (age 25-60; N=15 men, N=8 women) were tested.  The protocol consisted of:  5-10 min. baseline control (resting eyes closed) was first acquired, followed by the DMT test condition, usually lasting 5-15 min. When subjects recovered from the DMT induced altered state, a report of their subjective experience was recorded on video and a post recovery  EEG reading was made typically at 15-30 min. A statistical comparison (paired t-tests, correlated samples) of absolute power values for all EEG bands  between baseline vs. DMT tests and post recovery conditions was carried out for all subjects. The DMT- induced profound alterations in consciousness  were tracked with the shifts in the QEEG metrics analysed. The time course and intensity of the subjective experience correlated with the magnitude of the observed EEG effects. The most consistent effect was a robust suppression of Alpha, obtained for both N,N-DMT and 5-MeO-DMT (Alpha decreased ave. 72%, N=6). During recovery, some subjects showed Alpha rebound increased power at 15-25 min. post DMT (ave. 43% incr.,

Reformadores y reaccionarios en la estructura central de Sanidad en España, 1931-1936

La valiente iniciativa de transformar en un sentido social la estructura central de la Sanidad en España parte, en abril de 1931, del equipo de Marcelino Pascua. La resistencia de los más intransigentes deviene una larga pugna, verificada en el Bienio negro. La Guerra Civil truncará cualquier decisión posterior.Marcelino Pascua's team took the brave initiative to transform the government Health Service in Spain in a social sense in April 1931. Nevertheless, the opposition held by some intransigent sectors promoted a long struggle, developped during the Conservative period of government in 1932-1934. The Spanish Civil War will close any further issues