scholarly journals General Integrated Representations оf Technogenic Accidents Danger Indicators

10.12737/2161 ◽  
2013 ◽  
Vol 2 (6) ◽  
pp. 38-45
Author(s):  
Киреев ◽  
V. Kireev ◽  
Гуменюк ◽  
V. Gumenyuk ◽  
Карнюшкин ◽  
...  
Keyword(s):  
Integral Solution ◽  
Problem Definition ◽  
Acceptable Level ◽  
Hazard Indices ◽  
General Integral ◽  
Industrial Disaster ◽  
First Time ◽  
Reduced Time ◽  
Temporal Indices

The questions of justification of total and integral spatial-temporal hazard indices related to industrial disasters are considered from the perspective of qualimetry. The problem definition about casual time of destruction effects occurrence on all square of disaster striking action is formulated. General integral solution of formulated task is given. It is shown, that general integral expressions related to total and integral spatial-temporal hazard indices of industrial disaster follow from this solution. Particular cases of disaster’s spatial-temporal indices are considered. For the first time the disaster’s integral temporal indices such as reduced time of injury effect occurrence and reduced time of retention of injury effect are proved. Practically relevant tasks, which have to be solved with the use of proved hazard indices of industrial disasters, are formulated so that the hazard can be reduced to the allowed (psychologically acceptable) level.

Synthesis of a Controllable Circuit Breaker Mechanism

1990 ◽  
Vol 112 (3) ◽  
pp. 324-330 ◽  
Author(s):  
C. C. Jobes ◽  
G. M. Palmer ◽  
K. H. Means
Keyword(s):  
Circuit Breaker ◽  
Inequality Constraints ◽  
Problem Definition ◽  
Load Management ◽  
Functional Requirements ◽  
Dimensional Synthesis ◽  
Management Scheme ◽  
Optimization Simulation ◽  
Equality And Inequality Constraints ◽  
First Time

This paper addresses, for the first time, the synthesis, optimization, simulation and analysis of a controllable circuit breaker mechanism. Type synthesis is performed by finding the mechanisms conforming to topological requirements set forth in the problem definition and evaluating them to determine whether they satisfy the stated functional requirements. Dimensional synthesis is performed upon these mechanisms by designating the equality and inequality constraints, assigning the variable types, and then searching the specified design space to determine if any solutions exist. An optimization is performed on any mechanisms found to determine which of the mechanism configurations is optimal with respect to the specified criteria of desirability. Simulation and analysis is then performed on the optimal mechanism to verify that it meets all specified requirements and constraints. The result of this design is a controllable residential circuit breaker than can be used in a residential load management scheme.

scholarly journals OPTIMIZATION OF CARGO TRANSFER PROCESS IN TRANSPORT HUBS AT RISK

2018 ◽  
pp. 62-74
Author(s):  
A.O. Muradian ◽  
S.S. Rusanova
Keyword(s):  
Transfer Process ◽  
Information Quality ◽  
Problem Definition ◽  
Rolling Stock ◽  
Just In Time ◽  
Control Parameters ◽  
Operational Management ◽  
Degree Of Stability ◽  
Definition Of ◽  
First Time

In article the problem definition of optimization of cargo transfer process in transport hub, based on logistic conception «just in time» is offered for the first time, the constructive approach to modeling of a task is defined and are provided its original economic-mathematical models with the indication of methods of realization. The necessity is also proved for setting the task of cargo transfer process optimization at the stage of operational management of information quality factor of t regarding cargo flows and rolling stock entering the transport nodes. It is shown that this factor gives an idea of the degree of stability of the control parameters and allows us to consider the problem under the conditions of risk and in a determinate formulation.

Annulate lamellae in the Sertoli cells of guinea pig testis after unilateral torsion of the spermatic cord

1984 ◽  
Vol 42 ◽  
pp. 196-197
Author(s):  
J. Chakraborty ◽  
A. P. Sinha Hikim ◽  
J. S. Jhunjhunwala
Keyword(s):  
Sertoli Cells ◽  
Guinea Pigs ◽  
Spermatic Cord ◽  
Present Report ◽  
Cell Types ◽  
Annulate Lamellae ◽  
Spermatogenic Cells ◽  
Electron Microscopic ◽  
Structural Details ◽  
First Time

Although the presence of annulate lamellae was noted in many cell types, including the rat spermatogenic cells, this structure was never reported in the Sertoli cells of any rodent species. The present report is based on a part of our project on the effect of torsion of the spermatic cord to the contralateral testis. This paper describes for the first time, the fine structural details of the annulate lamellae in the Sertoli cells of damaged testis from guinea pigs.One side of the spermatic cord of each of six Hartly strain adult guinea pigs was surgically twisted (540°) under pentobarbital anesthesia (1). Four months after induction of torsion, animals were sacrificed, testes were excised and processed for the light and electron microscopic investigations. In the damaged testis, the majority of seminiferous tubule contained a layer of Sertoli cells with occasional spermatogonia (Fig. 1). Nuclei of these Sertoli cells were highly pleomorphic and contained small chromatinic clumps adjacent to the inner aspect of the nuclear envelope (Fig. 2).

Electron spectroscopic imaging and diffraction

1991 ◽  
Vol 49 ◽  
pp. 706-707
Author(s):  
M. Rühle ◽  
J. Mayer ◽  
J.C.H. Spence ◽  
J. Bihr ◽  
W. Probst ◽  
...  
Keyword(s):  
Materials Science ◽  
Electron Spectroscopic Imaging ◽  
Magnetic Filter ◽  
Magnetic Imaging ◽  
Illumination System ◽  
Probe Size ◽  
Diffraction Patterns ◽  
Fritz Haber ◽  
Koehler Illumination ◽  
First Time

A new Zeiss TEM with an imaging Omega filter is a fully digitized, side-entry, 120 kV TEM/STEM instrument for materials science. The machine possesses an Omega magnetic imaging energy filter (see Fig. 1) placed between the third and fourth projector lens. Lanio designed the filter and a prototype was built at the Fritz-Haber-Institut in Berlin, Germany. The imaging magnetic filter allows energy-filtered images or diffraction patterns to be recorded without scanning using efficient area detection. The energy dispersion at the exit slit (Fig. 1) results in ∼ 1.5 μm/eV which allows imaging with energy windows of ≤ 10 eV. The smallest probe size of the microscope is 1.6 nm and the Koehler illumination system is used for the first time in a TEM. Serial recording of EELS spectra with a resolution < 1 eV is possible. The digital control allows X,Y,Z coordinates and tilt settings to be stored and later recalled.

A Novel TEM Technique for Characterizing As-Grown CVD Diamond Films

1991 ◽  
Vol 49 ◽  
pp. 956-957 ◽  
Author(s):  
Z.L. Wang ◽  
J. Bentley ◽  
R.E. Clausing ◽  
L. Heatherly ◽  
L.L. Horton
Keyword(s):  
Diamond Films ◽  
Chemical Vapor ◽  
Growth Direction ◽  
Dark Field ◽  
Growth Surface ◽  
Specimen Preparation ◽  
Transmission Electron ◽  
Diffraction Patterns ◽  
First Time ◽  
Microstructural Studies

Microstructural studies by transmission electron microscopy (TEM) of diamond films grown by chemical vapor deposition (CVD) usually involve tedious specimen preparation. This process has been avoided with a technique that is described in this paper. For the first time, thick as-grown diamond films have been examined directly in a conventional TEM without thinning. With this technique, the important microstructures near the growth surface have been characterized. An as-grown diamond film was fractured on a plane containing the growth direction. It took about 5 min to prepare a sample. For TEM examination, the film was tilted about 30-45° (see Fig. 1). Microstructures of the diamond grains on the top edge of the growth face can be characterized directly by transmitted electron bright-field (BF) and dark-field (DF) images and diffraction patterns.

A microscopic marker experiment study on high temperature oxidation of Ni-Al alloy

1986 ◽  
Vol 44 ◽  
pp. 514-515
Author(s):  
Shou-kong Fan
Keyword(s):  
Transport Mechanism ◽  
High Temperature Oxidation ◽  
Transverse Section ◽  
Al Alloy ◽  
Metal Interface ◽  
Electron Microscopic ◽  
Temperature Oxidation ◽  
Analytical Electron ◽  
Microscopic Studies ◽  
First Time

Transmission and analytical electron microscopic studies of scale microstructures and microscopic marker experiments have been carried out in order to determine the transport mechanism in the oxidation of Ni-Al alloy. According to the classical theory, the oxidation of nickel takes place by transport of Ni cations across the scale forming new oxide at the scale/gas interface. Any markers deposited on the Ni surface are expected to remain at the scale/metal interface after oxidation. This investigation using TEM transverse section techniques and deposited microscopic markers shows a different result,which indicates that a considerable amount of oxygen was transported inward. This is the first time that such fine-scale markers have been coupled with high resolution characterization instruments such as TEM/STEM to provide detailed information about evolution of oxide scale microstructure.

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