scholarly journals Mechanisms of formation of trace decomposition products in complex high explosive mixtures

1999 ◽  
Author(s):  
J.D. Woodyard ◽  
C.E. Burgess ◽  
K.A. Rainwater
Keyword(s):  
High Explosive ◽  
Decomposition Products ◽  
Mechanisms Of Formation

THE PREPARATION OF BIS-NITROXYETHYLNITROÖXAMIDE

1948 ◽  
Vol 26b (4) ◽  
pp. 401-414 ◽  
Author(s):  
R. S. Stuart ◽  
George F. Wright
Keyword(s):  
Oxalic Acid ◽  
High Explosive ◽  
Health Hazard ◽  
Continuous Process ◽  
Decomposition Products ◽  
Economical Method ◽  
Acetone Water ◽  
Crude Product ◽  
Water Crystallization ◽  
Industrial Health

An economical method is described for preparation of the explosive bis-nitroxyethylnitroöxamide from oxalic acid and monoethanolamine. Yields over 80% of theoretical may be obtained from bis-hydroxyethyloxamide by either batch or continuous process. The crude product must be purified before use by acetone-water crystallization. The formation of this explosive is found to be inhibited by nitrosylsulphuric acid which limits the nitration to the bis-nitroxyethyloxamide stage. The complete reaction is thought to proceed via this intermediate by a nonreversible nitration and then to decompose reversibly, if allowed to proceed too long, to bis-hydroxyethylnitroöxamide. There is some evidence that the explosive is stabilized by its decomposition products. The use of this high explosive does not present the industrial health hazard caused by tetryl, with which it is comparable in power and brisance. Furthermore, it has the advantage over tetryl that it can be melted and poured. The solidified melt is unique among explosives because it is free from gross cavities.

Stabilizing pyritic material

1989 ◽  
Vol 4 ◽  
pp. 244-248 ◽  
Author(s):  
Donald L. Wolberg
Keyword(s):  
Significant Contribution ◽  
Organic Materials ◽  
Sedimentary Rocks ◽  
Iron Sulfides ◽  
Decomposition Products ◽  
Iron Minerals ◽  
Pyrite Formation ◽  
Organic Sediments ◽  
Freshwater Environments

The minerals pyrite and marcasite (broadly termed pyritic minerals) are iron sulfides that are common if not ubiquitous in sedimentary rocks, especially in association with organic materials (Berner, 1970). In most marine sedimentary associations, pyrite and marcasite are associated with organic sediments rich in dissolved sulfate and iron minerals. Because of the rapid consumption of sulfate in freshwater environments, however, pyrite formation is more restricted in nonmarine sediments (Berner, 1983). The origin of the sulfur in nonmarine environments must lie within pre-existing rocks or volcanic detritus; a relatively small, but significant contribution may derive from plant and animal decomposition products.

The innovative space as the most important element of theregional socio-economic space

2019 ◽  
pp. 60-70
Author(s):  
Larysa Gromozdova ◽  
Inna Stenicheva
Keyword(s):  
Basic Element ◽  
Information Support ◽  
Space Region ◽  
Regional Innovation ◽  
Economic Space ◽  
Mechanisms Of Formation ◽  
Innovation Space ◽  
Space Mechanisms ◽  
Constituent Elements

Purpose of the article: to determine the essence of different elements ofsocio-economic space of the region. Construction of the structure and isolationof individual elements of socio-economic space as a multi-vector formation.This article highlights the essence and different approaches to defining theconcepts, structure and mechanisms of formation of economic and social spacesof the region, innovation space as a basic element of socio-economic space.Research Methods: The methodological basis of the research is the fundamentalprinciples of economic theory, regional economy, scientific views and approachesof foreign and domestic scientists. To achieve the purpose of the study, themethods used at the empirical and theoretical levels were used: axiomatic,abstract, system-structural analysis, analogies and comparisons, graphoanalytic,by which the characterization of the nature of the concepts of space, socioeconomic space, as well as innovation space region. Their general properties,structure and functions are described.The criteria of optimality and balancesof interests in the formation of different types of space in the region areconsidered. The classification of the regional space is proposed, and the networkconnections of the innovation space according to components and elements arerevealed, which allows to study deeply the social, economic and other problemsof development of the region.Scientific novelty: the classification of regionalspace by separate constituent elements is proposed. The concept of “innovationspace” was introduced into scientific circulation, the scheme of networkconnections of the innovation space with other elements of the regional socioeconomic space was developed. Conclusions and Prospects for Further Research:In today’s context, it is possible to significantly improve the economic stateof development of Ukrainian regions by using a scientifically sound andcomprehensive approach to defining and studying the concepts of socioeconomic and innovative space.In the further study it is necessary to considerin detail the mechanism of organizational activity of innovation space in theregion. It is very important to pay attention to information support for theformation of the innovation space, the creation of a regional legal field ofinnovation space, mechanisms for coordinating regional innovation activitieswithin the innovation space, as well as the influence of internal and externalfactors on the formation and development of the innovation space.

Psychological nature of intelligence officer

2020 ◽  
Vol 8 (2) ◽  
pp. 12
Author(s):  
P. Yu. Naumov ◽  
F. V. Povshednaya
Keyword(s):  
Social Groups ◽  
Pedagogical Practice ◽  
Value System ◽  
Level Of Education ◽  
Main Research ◽  
Social Trends ◽  
Deductive Method ◽  
Mechanisms Of Formation ◽  
The Subject ◽  
Method Analysis

Introduction. Based on modern social trends, the demand becomes not only for professionally trained people, but also for the level of their general culture, value system and, ultimately, intelligence. At the same time, there is no place for intellectuals and educating intellectuals in program documents on educational activities, although this task is very logical for the pedagogical practice of a developed society. This work presents the experience of the author's analysis of the psychological nature of the intelligence of an officer. Consistently considering the essence and structure of such a complex phenomenon, the structure and the real functioning of the values that allow characterizing the subject as an intellectual are ascertained.Materials and methods. As the main research methodology, the authors use sociological (I.S. Kon), culturological adapted to solve the problems of this work (M.S. Kagan), historiographic (A.V. Popov), systemic (I.V. Blauberg, V.A. Lektersky, V.N. Sadovsky, S.L. Rubinstein, M.S. Kagan, N.V. Kuzmina) and functional approaches (P.K. Anokhin, M.S. Kagan, N. Wiener). The main research methods were: hypothetical-deductive method; analysis, synthesis, comparison, analogy and abstraction; systemic method and modeling.Results. The result of the study is that the authors identified and justified the structural psychological qualities of intelligence as the subjective characteristics of an officer and examined the basic mechanisms of formation of intellectual values.Discussion and Conclusions. The required criteria for being intelligent as a  subject characteristics of an officer is the level of education (self education)of an officer, his manners, the scope of his values , existential assessment –correlating every fact he faces with general life-span problems of objective reality, having respect for values of others and being ready for talk to employees and  superiors as well as the representatives of other social groups, other cultures, nationalities, confessions and professions which requires dialog in search of optimal forms and options of interaction. The cornerstone principle for intelligence of the officer are, therefore, his education and upbringing, ideological conviction in his own values and readiness for self-sacrifice for their sake.

Factors of humoral immunity in the combined course of vibration disease and hypertension

2020 ◽  
pp. 558-559
Author(s):  
R. A. Baraeva ◽  
L. A. Strizhakov ◽  
Y. I. Borzykh
Keyword(s):  
Humoral Immunity ◽  
Clinical Picture ◽  
Pathogenetic Mechanisms ◽  
Vibration Disease ◽  
Mechanisms Of Formation

The study of humoral immunity factors in vibration disease and its combination with hypertension opens up prospects for rehabilitation and treatment of patients with this pathology, as well as complements our knowledge of the pathogenetic mechanisms of formation of the clinical picture of these diseases.

Kinetics of the Thermal Disappearance of Radicals Formed During the Radiolysis of Aspartic Acid

2009 ◽  
Vol 59 (12) ◽  
Author(s):  
Mihai Contineanu ◽  
iulia Contineanu ◽  
Ana Neacsu ◽  
Stefan Perisanu
Keyword(s):  
Thermal Resistance ◽  
Aspartic Acid ◽  
Room Temperature ◽  
Esr Spectra ◽  
Complex Mechanism ◽  
Radical Species ◽  
Mechanisms Of Formation ◽  
Kinetics Of

The radiolysis of the isomers L-, D- and DL- of the aspartic acid, in solid polycrystalline state, was investigated at room temperature. The analysis of their ESR spectra indicated the formation of at least two radicalic entities. The radical, identified as R3, resulting from the deamination of the acid, exhibits the highest concentration and thermal resistance. Possible mechanisms of formation of three radical species are suggested, based also on literature data. The kinetics of the disappearance of radical R3 indicated a complex mechanism. Three possible variants were suggested for this mechanism.

Effects of Ultrasounds on Neat nitrobenzene

2019 ◽  
Vol 70 (8) ◽  
pp. 3085-3088
Author(s):  
Carmen Eugenia Stavarache ◽  
Yasuaki Maeda ◽  
Mircea Vinatoru
Keyword(s):  
Nitro Group ◽  
Radical Cation ◽  
Reaction Mechanisms ◽  
Diphenyl Ether ◽  
Argon Atmosphere ◽  
Phenyl Radical ◽  
Dissolved Gas ◽  
Decomposition Products ◽  
Oxygenated Compounds ◽  
Phenyl Cation

Neat nitrobenzene was continuously irradiated at two ultrasonic frequencies: 40 and 200 kHz, under air and argon atmosphere, respectively. Samples taken at intervals of 1, 5, 10 and 24 h were analyzed by GC-MS and decomposition products were identified. Possible reaction mechanisms are discussed. Presence of air as dissolved gas leads to oxygenated compounds such as 1,4-benzoquinone, 2,4-dinitrophenol, m-dinitrobenzene while argon inhibits the decomposition of nitrobenzene, especially at sonication times under 5 h. Based on the nature of the compounds identified we advanced a mechanism, involving a divergent splitting of unstable radical cation of NB in air and argon respectively. Thus, under air, the phenyl cation formation is preferred leading to 1,4-benzoquinone nitro-biphenyls and dinitrobenzene, while under argon, the phenyl radical formation seems to be favored, leading to phenol and diphenyl ether. The oxygenated compounds detected under argon clearly are a consequence of the nitro group splitting.

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