Comparative analysis of mode reflection and transmission in presence of a cutoff cross section of nonuniform waveguide by using the cross section and the mode-matching and generalized scattering-matrix methods

2001 ◽  
Vol 49 (4) ◽  
pp. 637-645 ◽  
Author(s):  
I. Ederra ◽  
M.S. Ayza ◽  
M. Thumm ◽  
B.Z. Katsenelenbaum
Keyword(s):  
Comparative Analysis ◽  
Cross Section ◽  
Scattering Matrix ◽  
Mode Matching ◽  
Reflection And Transmission ◽  
Matrix Methods ◽  
The Cross ◽  
Generalized Scattering Matrix

Poverty in the Dolnośląskie Voivodship

2016 ◽  
Vol 61 (6) ◽  
pp. 70-85
Author(s):  
Agata Girul
Keyword(s):  
Comparative Analysis ◽  
Cross Section ◽  
Objective Assessment ◽  
Subjective Assessment ◽  
Poverty Level ◽  
The Cross

The article presents selected aspects of economic poverty in the Dolnośląskie Voivodship on the background of the country and other voivodships, as well as in the cross-section of the Dolnośląskie powiats in 2013, as compared to 2010. The comparative analysis of poverty level by powiats was presented by means of taxonomic synthetic measure based on a set of three selected diagnostic indicators. A complement to the objective assessment of poverty in the Dolnośląskie Voivodship was a presentation of results of subjective assessment of material situation of households in the voivodships’ cross-section.

scholarly journals Increasing the Sensitivity of Protections in Electrical Networks up to 1 kV by Using Microprocessor and Semiconductor Release Tripping Devices

2021 ◽  
Vol 64 (5) ◽  
pp. 393-407
Author(s):  
A. Yu. Kapustsinski ◽  
S. N. Kаnstantsinava
Keyword(s):  
Comparative Analysis ◽  
Electric Power ◽  
Cross Section ◽  
Electrical Networks ◽  
Circuit Breakers ◽  
Electric Networks ◽  
Positive Effects ◽  
Protective Devices ◽  
The Cross ◽  
Negative Phenomena

The paper deals with the problem of increasing the efficiency of the functioning of electric networks up to 1 kV, namely, the possibility of increasing the sensitivity of protections in networks up to 1 kV, which helps to reduce the protection response currents and, accordingly, reduce the cross-section of cable and wire products. The topicality of this problem is shown and the research tasks are defined. Much attention is paid to the concept of selectivity; attention is also paid to the concepts of full and partial selectivity. “Which protective devices can be considered selective?” is a question that is considered and worked out in sufficient depth in the paper. The negative phenomena that occur when ensuring the selectivity of protections in networks up to 1 kV are systematized and described in detail. Based on a comparative analysis of the parameters of circuit breakers with release tripping devices of various types, a solution to this problem is proposed by using circuit breakers with microprocessor and semiconductor release tripping devices. Additional advantages of microprocessor-based circuit breakers are considered and indicated, as well as their disadvantages are indicated, too. The main expected positive effects from the use of circuit breakers with microprocessor release tripping devices are listed, taking into account the fact that this type of circuit breakers is considered as a complex of devices replaced by it. The article can be recommended to employees of electric power specialties working with networks up to 1 kV.

scholarly journals Specificity of strength calculation for glued-in steel rods in LVL with unidirectional veneer

2018 ◽  
Vol 2 (51) ◽  
pp. 196-201
Author(s):  
Andrii Bidakov ◽  
Evhenyi Raspopov ◽  
Oksana Pustovoitova
Keyword(s):  
Comparative Analysis ◽  
Failure Mode ◽  
Cross Section ◽  
Joint Strength ◽  
Design Method ◽  
Strength Calculation ◽  
Test Results ◽  
Rigid Connection ◽  
The Cross ◽  
Made In

Design of joints of LVL elements with glued-in steel rods and metal connectors is considered as semi-rigid connection and requires taking of account the compliance. A comparative analysis of the test results of the beams with a metal connector and glued-in steel rods as well as solid beams is made in the paper. Design method of glued-in rods in LVL is proposed and taken into account failure mode. It allows reducing the distance between the axes of the rods as well as the distance from the rod axіs to the edges in the cross section of the beam and increasing the joint strength.

A resolution of the integration region problem for the supermoduli space integral

2014 ◽  
Vol 29 (31) ◽  
pp. 1450190
Author(s):  
Simon Davis
Keyword(s):  
Cross Section ◽  
Scattering Matrix ◽  
Schottky Group ◽  
Matrix Elements ◽  
Period Matrix ◽  
Integration Region ◽  
Arbitrary Genus ◽  
The Cross

The integration region of the supermoduli space integral is defined in the super-Schottky group parametrization. The conditions on the super-period matrix elements are translated to relations on the parameters. An estimate of the superstring amplitude at arbitrary genus is sufficient for an evaluation of the cross-section to all orders in the expansion of the scattering matrix.

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