New Mexico agricultural statistics.

Mode of access: Internet.

The Lemon House : Allegheny Portage Railroad National Historic Site, Cresson, Pennsylvania /

Shipping list no.: 94-0345-P.

Algae and metropolitan wastes; transactions.

"Held ... under the sponsorship of the Division of Water Supply and Pollution Control and the Robert A. Taft Sanitary Engineering Center."

Strategic plan.

Mode of access: Internet.

Cosmic ray dosage; Apollo-Soyuz pamphlet no. 6.

Bibliography.

General science; Apollo-Soyuz pamphlet no. 9.

Bibliography.

Gravitational field; Apollo-Soyuz pamphlet no. 4.

Bibliography.

Sun, stars, in between; Apollo-Soyuz pamphlet no. 3.

Bibliography.

X-rays, gamma-rays; Apollo-Soyuz pamphlet no. 2.

Bibliography.

Economic profile.

Counties are divided into Prime [CETA] Sponsor Areas, and Balance of State.

A modelling and simulation environment for self-aware and self-expressive systems

Self-awareness and self-expression are promising architectural concepts for embedded systems to be equipped with to match them with dedicated application scenarios and constraints in the avionic and space-flight industry. Typically, these systems operate in largely undefined environments and are not reachable after deployment for a long time or even never ever again. This paper introduces a reference architecture as well as a novel modelling and simulation environment for self-aware and self-expressive systems with transaction level modelling, simulation and detailed modelling capabilities for hardware aspects, precise process chronology execution as well as fine timing resolutions. Furthermore, industrial relevant system sizes with several self-aware and self-expressive nodes can be handled by the modelling and simulation environment.

Não-extensividade no contexto da atividade magnética solar: o problema da assimetria hemisférica

Solar activity indicators, each as sunspot numbers, sunspot area and flares, over the Sun’s photosphere are not considered to be symmetric between the northern and southern hemispheres of the Sun. This behavior is also known as the North-South Asymmetry of the different solar indices. Among the different conclusions obtained by several authors, we can point that the N-S asymmetry is a real and systematic phenomenon and is not due to random variability. In the present work, the probability distributions from the Marshall Space Flight Centre (MSFC) database are investigated using a statistical tool arises from well-known Non-Extensive Statistical Mechanics proposed by C. Tsallis in 1988. We present our results and discuss their physical implications with the help of theoretical model and observations. We obtained that there is a strong dependence between the nonextensive entropic parameter q and long-term solar variability presents in the sunspot area data. Among the most important results, we highlight that the asymmetry index q reveals the dominance of the North against the South. This behavior has been discussed and confirmed by several authors, but in no time they have given such behavior to a statistical model property. Thus, we conclude that this parameter can be considered as an effective measure for diagnosing long-term variations of solar dynamo. Finally, our dissertation opens a new approach for investigating time series in astrophysics from the perspective of non-extensivity.

Safety criteria for the private spaceflight industry

The Federal Aviation Administration (FAA) Office of Commercial Space Transportation (AST) has set specific rules and generic guidelines to cover experimental and operational flights by industry forerunners such as Virgin Galactic and XCOR. One such guideline Advisory Circular (AC) 437.55-1[1] contains exemplar hazard analyses for spacecraft designers and operators to follow under an experimental permit. The FAA's rules and guidelines have also been ratified in a report to the United States Congress, Analysis of Human Space Flight Safety[2] which cites that the industry is too immature and has 'insufficient data' to be proscriptive and that 'defining a minimum set of criteria for human spaceflight service providers is potentially problematic' in order not to 'stifle the emerging industry'. The authors of this paper acknowledge the immaturity of the industry and discuss the problematic issues that Design Organisations and Operators now face.

A Repartição de Operações do Quartel-General e o desempenho operacional do Corpo Expedicionário Português

A Repartição de Operações do Estado-Maior do Corpo Expedicionário Português foi responsável pela coordenação das tropas portuguesas na frente ocidental e pela integração da força no dispositivo britânico. Elaborou o plano de defesa do setor atribuído e emitiu uma série de ordens para gerir as operações correntes. Com este trabalho pretendeu-se compreender a atividade desta repartição e o respetivo impacto no desempenho operacional do Corpo. Foram identificados os fatores que marcaram a beligerância portuguesa, que mais influência tiveram na repartição e no desempenho do Corpo, avaliado o impacto da estrutura da força e do seu Estado-Maior, identificados os fatores mais relevantes do setor atribuído e do seu dispositivo com impacto no desempenho e ainda determinado o papel da repartição durante a condução das operações. Com o intuito de atingir os objetivos propostos, foi analisado um conjunto de fontes, fundamentalmente do Arquivo Histórico Militar e da Biblioteca do Exército, para recolha de informação, e bibliografia nacional e estrangeira acerca do tema. Concluímos que a repartição contribuiu para o normal desempenho do CEP, não tendo sido identificados erros cometidos pela mesma com impacto negativo na prestação da força. Abstract: The Operations Division of the General Staff of the Portuguese Expeditionary Corps was responsible for coordinating the Portuguese troops on the western front and for the integration of the force in British defense system. It prepared the defense plan for the assigned sector, and issued several orders to manage current operations. This work was intended to understand the activity of this division and its impact on the operational performance of CEP. Were identified the factors that marked the Portuguese belligerence which more influence had in the Operations Division and CEP's performance, assessed the impact of the force structure and its staff, identified the most important factors of the assigned sector and its force structure with impact on performance and also determined the role of the operations division during the operations. In order to achieve the proposed goals, we studied a number of sources, mainly from the Military Historical Archives and the Library of the Army for information collection, and also from national and foreign literature on the subject. We conclude that the operations division contributed to the normal performance of the CEP, and didn’t identify errors committed by it with negative impact on the force performance.

Incorporação de resíduo cerâmico para prevenção da retrogressão da resistência de cimentos de poços de petróleo submetidos à injeção de vapor

Steam injection is the most used thermal recovery method of oil nowadays because of the high degree of development of the technique that allows high recovery factors. However, injection of superheated steam into the reservoir affects the entire structure of the well, including the cemented layer that presents a retrogression of compressive strength and increases the permeability due to formation of more crystalline and denser phases at temperatures above 110 °C. These changes result in failures in the cement that favor the entrance of formation fluids into the annulus space resulting in unsafe operations and restrictions in the economic life of the well. But the strength retrogression can be prevented by partial replacement of cement by silica-based materials that reduce the CaO/SiO2 ratio of cement slurries changing the trajectory of the reactions, converting those deleterious phases in phases with satisfactory mechanical strength and permeability. The aim of this study was to evaluate the behavior of a ceramic waste material rich in silica in partial and total substitution of a mineral additive used to fight the strength retrogression of cement slurries subjected to high temperatures. The evaluation was made by compression, X-ray diffraction (XRD) and thermogravimetry (TG/DTG). The samples were submitted to a cycle of low temperature (38 °C) for 28 days and a cycle of low temperature followed by exposure to 280 ºC and 1000 psi by 3 days. The results showed that slurries with additions of up to 30% of the waste material are not enough to prevent the strength retrogression, while slurries with additions of the waste material combined with silica flour in various proportions produced hydrated products of low Ca/Si ratios that maintained the compressive strength at satisfactory levels