The principal technical problems and prospects for the creation of gas-cooled fast reactors with a power of 1200?1500 MW using a dissociating coolant

1978 ◽  
Vol 44 (2) ◽  
pp. 138-143
Author(s):  
A. K. Krasin ◽  
V. B. Nesterenko ◽  
B. E. Tverkovkin ◽  
V. F. Zelenskii ◽  
V. A. Naumov ◽  
...  
Keyword(s):  
Fast Reactors ◽  
Technical Problems ◽  
The Creation

Boiler and Pressure Vessel Safety

2021 ◽  
pp. 93-124
Author(s):  
Thomas H. Fehring ◽  
Terry S. Reynolds
Keyword(s):  
Pressure Vessel ◽  
Mechanical Engineering ◽  
The Other ◽  
Next Generation ◽  
Technical Problems ◽  
Engineering Society ◽  
The Creation ◽  
American Society

A variety of factors prompted Leavitt, Thurston, Sweet, Worthington, and the other founders of ASME to promote the creation of a new professional engineering society in 1880: need for a forum to discuss technical problems and share views, desire to promote mechanical engineering as a profession, a means of guiding the next generation. One of the primary factors that prompted the formation of ASME, however, was a desire to establishment of codes and standards relevant to the field. Not surprisingly, codes and standards were topics that occupied considerable attention in the early volumes of the Transactions of the American Society of Mechanical Engineers.

scholarly journals Средства информационного обеспечения функционирования группы автономных необитаемых подводных аппаратов с мультиагентной системой управления

2020 ◽  
Author(s):  
V.G. Mikhlin ◽  
N.N. Semenov ◽  
E.B. Mikhlina
Keyword(s):  
Control System ◽  
Underwater Vehicles ◽  
Underwater Robot ◽  
Software Platform ◽  
Technical Problems ◽  
Priority Areas ◽  
Heterogeneous Devices ◽  
Multiagent Control ◽  
Multi Agent ◽  
The Creation

Область применения автономных необитаемых подводных аппаратов (АНПА) сегодня весьма обширна и постоянно увеличивается. Все чаще рассматриваются варианты группового применения аппаратов для повышения скорости и эффективности выполнения работ. Одно из приоритетных направлений управления группой аппаратов мультиагентная система управления, которая, несомненно, имеет значительные преимущества перед централизованной и сегодня представляет собой одно из наиболее перспективных направлений в области подводного роботостроения. Для создания таких систем требуется решение большого количества технических проблем, среди которых можно выделить две основные задачи: обеспечение эффективной координации аппаратов при их групповом применении и создание программной платформы, обеспечивающей взаимодействие большого количества разнородных устройств и программ. Вопросам создания технических средств обеспечения функционирования АНПА в мультиагентной среде посвящена настоящая статья.The field of application of Autonomous uninhabited underwater vehicles (AUV) is very extensive today and is constantly increasing. More and more often options of group application of devices are being considered for enhance of effectiveness and speed of mission completion. One of the priority areas for managing a group of devices is a multiagent control system (MAS), which undoubtedly has significant advantages over a centralized one and today represents one of the most promising areas in the field of underwater robot engineering. The creation of such systems requires the solution of many technical problems, among which there are two main tasks: ensuring the effective coordination of devices in their group application and creating a software platform that provides interaction of a large number of heterogeneous devices and programs. This article is devoted to the creation of technical means to ensure the functioning of AUV in a multi-agent environment.

The role of affect in feelings of obligation

2020 ◽  
Vol 43 ◽  
Author(s):  
Stefen Beeler-Duden ◽  
Meltem Yucel ◽  
Amrisha Vaish
Keyword(s):  
Positive Emotions ◽  
The Creation ◽  
Sense Of Obligation

Abstract Tomasello offers a compelling account of the emergence of humans’ sense of obligation. We suggest that more needs to be said about the role of affect in the creation of obligations. We also argue that positive emotions such as gratitude evolved to encourage individuals to fulfill cooperative obligations without the negative quality that Tomasello proposes is inherent in obligations.

X-Ray Analysis of Frozen Hydrated Sections:The Unconventional Approach

1982 ◽  
Vol 40 ◽  
pp. 754-757
Author(s):  
R. Beeuwkes ◽  
A. Saubermann ◽  
P. Echlin ◽  
S. Churchill
Keyword(s):  
Ratio Method ◽  
Frozen Sections ◽  
Technical Problems ◽  
Sample Handling ◽  
X Ray ◽  
Common Group ◽  
Ideal Method ◽  
Classic Paper ◽  
Physical Principles ◽  
The Ideal

Fifteen years ago, Hall described clearly the advantages of the thin section approach to biological x-ray microanalysis, and described clearly the ratio method for quantitive analysis in such preparations. In this now classic paper, he also made it clear that the ideal method of sample preparation would involve only freezing and sectioning at low temperature. Subsequently, Hall and his coworkers, as well as others, have applied themselves to the task of direct x-ray microanalysis of frozen sections. To achieve this goal, different methodological approachs have been developed as different groups sought solutions to a common group of technical problems. This report describes some of these problems and indicates the specific approaches and procedures developed by our group in order to overcome them. We acknowledge that the techniques evolved by our group are quite different from earlier approaches to cryomicrotomy and sample handling, hence the title of our paper. However, such departures from tradition have been based upon our attempt to apply basic physical principles to the processes involved. We feel we have demonstrated that such a break with tradition has valuable consequences.

On the High Voltage Electron Microscopy (1 MeV) of Biological Thick Sections

1972 ◽  
Vol 30 ◽  
pp. 464-465
Author(s):  
William H. Massover
Keyword(s):  
Electron Microscopy ◽  
High Voltage ◽  
Present Report ◽  
Biological Tissues ◽  
Specimen Preparation ◽  
Technical Problems ◽  
High Voltage Electron Microscopy ◽  
Thin Sections ◽  
Voltage Electron ◽  
High Voltage Electron

Stereoscopic examination of thick sections of fixed and embedded biological tissues by high voltage electron microscopy has been shown to allow direct visualization of three-dimensional fine structure. The present report will consider the occurrence of some new technical problems in specimen preparation and Image interpretation that are not common during lower voltage studies of thin sections.Thick Sectioning and Tissue Coloration - Epon sections of 0.5 μm or more that are cut with glass knives do not have a uniform thickness as Judged by their interference colors; these colors change with time during their flotation on the knife bath, and again when drying onto the specimen support. Quoted thicknesses thus must be considered only as rough estimates unless measured in specific regions by other methods. Chloroform vapors do not always result in good spreading of thick sections; however, they will spread spontaneously to large degrees after resting on the flotation bath for several minutes. Ribbons of thick sections have been almost impossible to obtain.

Haydn: The Creation

1991 ◽  
Author(s):  
Nicholas Temperley
Keyword(s):  
The Creation
Sign in / Sign up

Export Citation Format

Share Document