Application of moderate resolution band models to the prediction of heat transfer from rocket exhaust plumes

Computer program for resolution band model prediction of heat transfer from rocket exhaust plume

Theoretical dynamic analysis of the landing loads on a vehicle with a tricycle landing gear

Theoretical dynamic analysis of landing loads on vehicle with tricycle landing gear compared with X-15 aircraft dat

LANDING LOADS AND DYNAMICS OF THE X-15 AIRPLANE

Measurements of loads, accelerations, and displacements of x-15 aircraft and landing gear during landing impac

Optimal Dark Hole Generation via Two Deformable Mirrors with Stroke Minimization

The past decade has seen a significant growth in research targeted at space based observatories for imaging exo-solar planets. The challenge is in designing an imaging system for high-contrast. Even with a perfect coronagraph that modifies the point spread function to achieve high-contrast, wavefront sensing and control is needed to correct the errors in the optics and generate a "dark hole". The high-contrast imaging laboratory at Princeton University is equipped with two Boston Micromachines Kilo-DMs. We review here an algorithm designed to achieve high-contrast on both sides of the image plane while minimizing the stroke necessary from each deformable mirror (DM). This algorithm uses the first DM to correct for amplitude aberrations and the second DM to create a flat wavefront in the pupil plane. We then show the first results obtained at Princeton with this correction algorithm, and we demonstrate a symmetric dark hole in monochromatic light

Intervención en un sistema de conducta

Los autores presentan algunos factores importantes que pueden ayudar a cambiar la interacción de pareja e interpersonal. Recuperando el concepto de sistema de conducta, insisten en identificar y sobre todo en modos de intervención en cada sistema a través de una serie de herramientas comunicativas e interpersonales.The authors present some important factors which can help to change interpersonal and couple interactions. Retrieving the concept of system of behaviour they insist on identifying and intervening in each system through a series of communicative and interpersonal tools.Les auteurs présentent quelques aspects d’importance que peuvent aider à changer les interactions du couple et interpersonnels. Récupérant le concept de système conductuel ils mettent l’accent dans l’identification et l’intervention sur ces systèmes, à travers d’une série d’éléments communicatifs et interpersonnels

Une étude sur le processus de changement menant au désistement criminel d’un détenu purgeant une peine à perpétuité dans la collectivité

La présente étude explore la trajectoire de vie d’un détenu condamné à une peine à perpétuité qui bénéficie d’une libération conditionnelle totale afin d’identifier laquelle ou lesquelles des cinq grandes conceptualisations théoriques du désistement criminel permettent le mieux d’expliquer sa trajectoire de désistement. Pour atteindre cet objectif, une méthodologie qualitative de type exploratoire a été privilégiée. Un homme purgeant une peine à perpétuité dans la collectivité a été rencontré en contexte d’entretiens afin de restituer en profondeur son histoire de vie et cerner, à la lumière des théories recensées, les concepts applicables à son désistement criminel. Une série de neuf entretiens d’environ une heure et demie a été réalisée. Le récit de vie de monsieur P est présenté et analysé pour illustrer l’applicabilité des principales conceptualisations théoriques du désistement criminel qui ont été recensées dans le présent mémoire. L’analyse des données recueillies a permis de faire ressortir l’importance de considérer le concept identitaire dans le processus de désistement et le changement psychologique qui l’accompagne. La discussion aborde quelques pistes d’interventions susceptibles de soutenir le travail des membres du personnel qui œuvrent auprès des délinquants qui purgent de longues peines. Celles-ci prennent en compte les défis posés par la clientèle particulière des détenus à perpétuité et cherchent à maximiser leur réintégration sociale lors de leur mise en liberté.This research explores the life trajectory of an offender serving a life sentence in the community after having been granted a full parole. The goal of this research is to identify which of the five main theoretical concepts, explaining the cessation of criminal behavior, best indicates what led him to cease his criminal behavior. To reach this objective, an exploratory qualitative research was preferred. A man serving a life sentence in the community was interviewed on numerous occasions. These interviews were aimed at getting the utmost account of his life story and then, by integrating the appropriate theories in the research process, selecting the concepts that best explained the cessation of his criminal behavior. A series of nine interviews, each one lasting approximately an hour and a half, were conducted. For the purpose of this memoir, the life story of Mr. P is presented and analyzed so has to illustrate the application of the main theoretical concepts linked to the cessation of criminal behavior. By analyzing the data collected, the importance of considering the identity concept in the cessation of criminal behavior was noted just as the psychological change that comes with it. The discussion also addresses certain intervention strategies that are likely to offer an improved support for people working with offenders serving long sentences. These interventions take into account the challenges that arise when working with this type of clientele and they aim at maximizing the social reinsertion potential of these individuals upon release

Nuevo registro de Brontocoris tabidus (Hemiptera: Pentatomidae) atacando larvas de Heteroperreyia hubrichi (Hymenoptera: Pergidae)

Schinus terebinthifolia Raddi (Anacardiaceae) es un árbol perenne nativo de Argentina, Brasil, Paraguay y Uruguay, considerado actualmente una de las especies invasoras más agresivas y extendidas en Florida, Hawai y Texas (Estados Unidos). La avispa sierra defoliadora, Heteroperreyia hubrichi Malaise (Hymenoptera: Pergidae), es un agente potencial de control biológico para S. terebinthifolia. Durante inspecciones de campo recientes en el área de distribución nativa de S. terebinthifolia, ninfas y adultos de Brontocoris tabidus (Signoret) (Hemiptera: Pentatomidae) fueron encontrados predando larvas de H. hubrichi y Heteroperreyia n.? sp. sobre plantas de S. terebinthifolia en Argentina (Provincia de Misiones) y Brasil (Estado de Rio Grande do Sul) respectivamente. La depredación de B. tabidus sobre larvas de especies de Heteroperreyia constituye nuevos registros.Brazilian peppertree (Schinus terebinthifolia Raddi; Anacardiaceae) is a perennial tree native to Argentina, Brazil, Paraguay and Uruguay. Brazilian peppertree is one of the most aggressive and widespread invasive species in Florida, Hawaii, and Texas (USA). The defoliating sawfly, Heteroperreyia hubrichi Malaise (Hymenoptera: Pergidae), is a potential biological control agent for S. terebinthifolia. During surveys of plant use under natural conditions in the S. terebinthifolia native range, nymphs and adults of Brontocoris tabidus (Signoret) (Hemiptera: Pentatomidae) were found attacking H. hubrichi and Heteroperreyia n.? sp. larvae feeding on S. terebinthifolia in Argentina (Misiones Province) and Brazil (Rio Grande do Sul) respectively. The attack by B. tabidus on Heteroperreyia species constitutes new records.Fil: Mc Kay, Fernando. Fundación para el Estudio de Especies Invasivas; ArgentinaFil: Dellapé, Gimena. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Entomología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaFil: Dyer, Kisten. United States Department of Agriculture; Estados UnidosFil: Wheeler, Gregory. United States Department of Agriculture; Estados Unido

7,11,15,28-Tetra­kis[(2-formyl­phen­oxy)methyl]-1,21,23,25-tetra­methyl­resorcin[4]arene cavitand ethyl acetate clathrate at 173 K

The title compound, C68H56O16, was synthesized as a novel synthetic inter­mediate towards deeper and more elaborate resorcin[4]arene cavitands. The structure is the first reported example of a resorcin[4]arene cavitand bearing aromatic aldehyde functional groups at the extra-annular rim of the mol­ecule. The 2-formyl­phen­oxy residues are found to assume two different orientations above the mol­ecular cavity. One half of the resorcin[4]arene cavitand mol­ecule appears in the asymmetric unit; the complete resorcin[4]arene cavitand structure was generated across a mirror plane. In addition, a highly disordered ethyl acetate solvent mol­ecule is present within the mol­ecular cavity