scholarly journals DETERMINATION OF THE PERFORMANCE STROKES SEQUENCE IN THE ABSENCE OF THEIR MUTUAL INTERSECTION AREAS

2016 ◽  
Vol 16 ◽  
pp. 196-201
Author(s):  
О. V Naranovich
Keyword(s):  
Average Density ◽  
Chronological Sequence

Consideration is given to the possibility of determining the chronological sequence of strokes made with ballpoint pen paste and strokes made by the electrophotographic method if there are no any sectors of their intersection. In addition to the methods existing abroad, it was suggested to carry out a study on determining the average density of the toner "background" on the sections, where strokes of records and signatures are executed as well as on the blank sections of document sheets.

scholarly journals AN APPLICATION OF MICROWAVES REFRACTION FOR INHOMOGENEOUS PLASMA DIAGNOSTIC

2021 ◽  
pp. 163-170
Author(s):  
Y.V. Siusko ◽  
Yu.V. Kovtun
Keyword(s):  
Inhomogeneous Plasma ◽  
Average Density ◽  
Electron Collision ◽  
Plasma Diagnostic ◽  
Plasma Parameters ◽  
Peripheral Plasma ◽  
Electron Collision Frequency ◽  
Microwave Diagnostics ◽  
The Magnetic Field

A brief review of the main microwave diagnostics methods of inhomogeneous plasma based on the refraction of microwaves is given. These methods make it possible to determine the plasma density distribution, the magnetic field distribution, the electron collision frequency, and the electron temperature profile. In addition, the determination of the average density of the peripheral plasma layers and the local inhomogeneities of the rotating plasma are also possible. The effect of refraction on the accuracy of determining the plasma parameters by using microwave methods for plasma diagnostics is considered.

scholarly journals FOAM GYPSUM PRODUCTS BASED ON LOCAL BINDERS

2019 ◽  
Vol 45 (4) ◽  
pp. 153-161
Author(s):  
A. S. Bagdasarov ◽  
A. I. Nesterenko ◽  
A. Yu. Pupkova
Keyword(s):  
Average Density ◽  
State University ◽  
Material Density ◽  
Foaming Agent ◽  
Foaming Agents ◽  
Materials Used ◽  
Building Heat ◽  
Moscow State University ◽  
Source Materials

Objectives. The problems of production of porous gypsum products on a local gypsum binder in the Karachay-Cherkess Republic are considered. Method. The study is based on the method of "dry" mineralization of foams, developed at the Moscow State University of Civil Engineering. As the source materials used plaster binder brand G-6 Ust-Dzhegutinsky plaster plant. An alkyl dimethylamine oxide (amine oxide) foaming agent was chosen as a foaming agent (PO). The choice of software is made taking into account its compatibility with the gypsum binder. At the same time, software of various classes was studied. Studies were performed to obtain foamed gypsum with an average density of 900 kg / m3. Result. A technology for the production of foam gypsum is proposed, based on the technology for the production of foam concrete by the method of “dry” mineralization of foams. The choice of foaming agent was made by comparative evaluation of the studied parameters of foaming agents of various classes. A technique has been developed for designing foamed gypsum formulations to produce products of a given average density. The technique includes the determination of the flow rate of HS, water flow and foaming agent, the determination of the B / T ratio. It was proposed to design the GHG compositions based on a given design average material density (), which in this case is equal to the consumption of dihydrate gypsum (CaSO42H2O). In the proposed method of obtaining foam – gypsum masses, the distinctive feature is the use of the technological properties of dense foams with low multiplicity. The boundary conditions for obtaining wall foam-gypsum products from a local gypsum binder that meet the requirements of GOST have been determined. Conclusion. Using modern research methods, it has been established that foam-hypo products from Ust-Dzhegutinsky gypsum of grade G-6 meet the requirements of standards for building heat-insulating and construction-heatinsulating products with a density of 400-1000 kg / m 3.

scholarly journals Theoretical Research on the Stability of the Transport Module Intended for Transport from the Seabed

2018 ◽  
Vol 1 (1) ◽  
pp. 605-612
Author(s):  
Wiktor Filipek ◽  
Krzysztof Broda
Keyword(s):  
Energy Source ◽  
Transport Process ◽  
Stability Problem ◽  
Average Density ◽  
Theoretical Research ◽  
Marine Deposits ◽  
New Methods ◽  
New Concepts ◽  
The Stability

Abstract The interest in sea mining has resulted in the recent years in the creation of many new methods for the exploitation of marine deposits as well as the transport from the seabed to the. For several years, the authors have been trying to develop new concepts of transport from the seabed. In previous publications, the authors presented the concept of an autonomous transport module for transport from the seabed. The research so far has focused on the development of the module’s operation principles, determination of the energy source in the transport process and changes in the average density of the transport module. In this publication, the authors focused on the stability problem of the transport module during deployment and ascent. This is a very important issue, because the stability of the module will determine its practical suitability for transport from the seabed.

scholarly journals On the possibility of using lime dust for the production of building materials of forced carbonate hardening

2020 ◽  
Vol 315 ◽  
pp. 07008
Author(s):  
Aleksandr Bakhtin ◽  
Nikolai Lyubomirskiy ◽  
Sergey Fedorkin ◽  
Tamara Bakhtina
Keyword(s):  
Compressive Strength ◽  
Water Absorption ◽  
Water Content ◽  
Building Materials ◽  
Raw Materials ◽  
Average Density ◽  
Technological Parameters ◽  
Shaft Furnaces ◽  
Recycled Material

The paper presents research on the development of building materials with low level of CO2 emissions based on technogenic recycled materials. The paper addresses the determination of optimal formulation and technological parameters of obtaining materials based on lime dust generated by mechanical deposition in cyclones and bag filters of shaft furnaces, as well as finely dispersed marble limestone with a fraction of up to 5 mm. Studies have shown that it is possible to obtain carbonized material with compressive strength of more than 40 MPa from this recycled material by forced carbonization used during three hours. Moreover, to obtain such numbers, the optimal content of lime dust in raw materials should be in the range of 35-40% wt. when the water content of the mixture is 6-7% wt. The carbonized material obtained with the indicated technological parameters will have an average density of 1.95-2.0 g/cm3 and water absorption by weight of not more than 12%.

Determination of the compressive strength parallel to the grain of resinous yellow pine heartwood

2020 ◽  
Vol 109 ◽  
pp. 81-85
Author(s):  
Piotr Mańkowski ◽  
Agnieszka Laskowska
Keyword(s):  
Compressive Strength ◽  
Compression Test ◽  
Considerable Increase ◽  
Average Density ◽  
Pine Wood ◽  
Yellow Pine

Abstract: Determination of the compressive strength parallel to the grain of resinous yellow pine heartwood. The compressive strength parallel to the grain of resinous yellow pine heartwood was determined as a part of this study. The interdependencies between the load and deflection of yellow pine under compression test were established. The average density of resinous yellow pine wood in an air-dry condition was 855 ± 10 kg/m3 and it was 30% greater than the density of non-resinous yellow pine wood. Despite a considerable increase in density, which was due to the saturation of wood with resin, a 4% decrease in the compressive strength parallel to the grain of yellow pine heartwood was recorded and the differences were statistically significant. The load-deflection curves of yellow pine wood showed a similar direction of changes for resinous and non-resinous heartwood. Nevertheless, significant differences in the deflection values between resinous and non-resinous yellow pine heartwood were demonstrated, depending on the load.

Spatial–temporal variation ofAchiruslarvae (Actinopterygii: Achiridae) in mangrove, beach and reef habitats in north-eastern Brazil

2012 ◽  
Vol 93 (2) ◽  
pp. 381-388 ◽  
Author(s):  
Elisabeth Cabral Silva-Falcão ◽  
William Severi ◽  
Maria Elisabeth De Araújo
Keyword(s):  
Larval Stage ◽  
Fish Larvae ◽  
Demersal Fish ◽  
Average Density ◽  
Size Segregation ◽  
Ontogenetic Migration ◽  
Eastern Brazil ◽  
North Eastern ◽  
Close Relationship

The genusAchirusis made up of demersal fish that have a close relationship with the substrate and exhibit peculiar aspects during their larval stage. The aim of the present study was to determine whether the abundance ofAchiruslarvae differed among a set of habitats in the estuary of the Formoso River in the State of Pernambuco (north-eastern Brazil). Sampling was performed monthly between April 2009 and March 2010, and comprised horizontal hauls with plankton net during the day and night in mangrove, beach and reef habitats. Fish larvae were sorted, identified, measured and larval stage recorded. Density and body length values were used in a non-parametric analysis of variance for the determination of variations between seasons, habitats and diel periods. A total of 204 larvae were collected, with an average density of 2.1 larvae.100 m−3. Density was greater in the nocturnal samplings, with no differences found between habitats. The larvae occurred in the yolk-sac to post-flexion stage, with pre-flexion the most abundant stage (78%). Size segregation was observed. Larger larvae were captured at night and in the mangrove. The smallest larvae were caught on the reef, with length increasing toward the mangrove. The results indicate thatAchiruslarvae come from deeper regions near reefs, where spawning probably occurs, and perform ontogenetic migration towards the shallow waters of mangrove, where they settle.

Structure Determination of B4C and SiC Thin Films Via Synchrotron High-Resolution Diffraction

1997 ◽  
Vol 505 ◽  
Author(s):  
J. Hershberger ◽  
F. Kustas ◽  
Z. U. Rek ◽  
S. M. Yalisove ◽  
J. C. Bilello
Keyword(s):  
Thin Films ◽  
Average Density ◽  
Distribution Functions ◽  
Degree Of Crystallinity ◽  
X Ray Diffraction ◽  
Double Crystal ◽  
X Ray ◽  
Si Substrates ◽  
X Ray Scattering

ABSTRACTThin films of B4C and SiC deposited by magnetron sputtering as components of multilayers have the potential to provide significant property improvements over current wear resistant coating technology. B4C and SiC have previously been found to be amorphous and possibly nanocrystalline under the deposition conditions used. This study reports results of synchrotron x-ray scattering experiments providing information on the degree of crystallinity, strain, average density, and coordination number in 2000 Å films of these compounds on Si substrates. Radial distribution functions from B4C and SiC thin films were obtained and used to model the structure. Strain results are compared with Double Crystal x-ray Diffraction Topography (DCDT) results as a means for establishing a standard strain state.

scholarly journals Context as an activator of connotations (on the material of Kurt Pinthus’ anthology “The Twilight of Humanity”)

Litera ◽  
2020 ◽  
pp. 24-34
Author(s):  
Kseniya Sergeevna Oparina
Keyword(s):  
Lyric Poetry ◽  
Literary Work ◽  
Contextual Analysis ◽  
Structural Elements ◽  
German Expressionism ◽  
History Of ◽  
Chronological Sequence ◽  
The Subject ◽  
Genitive Case

The goal of this research consists in determination of the types of contexts in the lyric poetry of German expressionism that contribute to the emergence of connotations in the semantics of a word. The subject of this article is the extralinguistic and linguistic contexts. The work employs the methods of contextual, component and interpretative analysis. In chronological sequence, the article describes various theories of contextual analysis and summarizes their main provisions. The author differentiates two types of context in a literary work: extralinguistic and linguistic; the latter is divided into micro- and macro-contexts. The poems of anthology of expressionist lyrics of Kurt Pinthus “The Twilight of Humanity” served as the material for this research. The scientific novelty consists in determination of the five types of linguistic micro-context, as well as analysis of the results of their interaction with semantically implemented word based on the material of the lyric poetry of German expressionism. In the course of study, it was established that extralinguistic context includes the artistic worldview of German literary expressionism as a whole, and artistic concept of “vitalism” as one of its crucial structural elements in particular. A specific poem is a macro-context. The indicatory minimum for the semantically implemented work contains five mechanisms: grammar parallelism, subjective predicative relations, complement in the genitive case, complement in the accusative case with preposition, attributive. The emergence of connotations in the sense of semantically implemented work was viewed on the example of representatives of the artistic concept of “vitalism”, which in broadly understood as “activeness”. The acquired results can be used for comprising individual authorial glossaries, as well as handbooks on text stylistics and history of foreign literature.

scholarly journals Determination of the frequency and density of weed species in apple orchards in Kahramanmaras region of Turkey

2017 ◽  
Vol 42 (1) ◽  
pp. 87-102
Author(s):  
Tamer Üstüner
Keyword(s):  
Cynodon Dactylon ◽  
Chenopodium Album ◽  
Average Density ◽  
Amaranthus Retroflexus ◽  
Apple Orchards ◽  
Weed Species ◽  
Convolvulus Arvensis ◽  
Alopecurus Myosuroides ◽  
Lactuca Serriola

A study was carried out in Kahramanmaras region of Turkey during 2012-13 having ten subregions namely, Afsin, And?r?n, Caglayancerit, Ekinozu, Elbistan, Göksun, Center, Nurhak, Pazarc?k and Türkoglu to determine the range, density and frequency of weeds in apple orchards. In the orchards 133 weed species from 31 families were determined. The average density of weeds was 112.49 plants m-2. The maximum density of weed species was found in Göksun (127.30 plants m-2) followed by Elbistan (126.13 plants m-2), Ekinozu (125.95 plants m- 2), Afsin (120.39 plants m-2), Center (117.94 plants m-2) and Caglayancerit (114.90 plants m-2), and the minimurn density was determined in Pazarc?k (69.51 plants m-2). From the identified 133 weed species one species belonged to Pterydophyta, 2l species to Monocotyledoneae and 111 species to Dicotyledoneae. The average densities of the weed species over l0 subregions for Agropyron repens (L.) P. Beauv., Chenopodium album L., Bromus arvensis L. and Amaranthus retroflexus L. were found to be 13.76, 12.17, 12.10 and 10.76 plants m-2, respectively. With regard to frequency of occurrence, C. album L. was detected more than 56% in six subregions excluding And?r?n, Pazarc?k, Türkoglu and Center; A. retroflexus L. more than 54% in 7 subregions excluding Center, Pazarc?k and Türkoglu and A. repens (L.) P. Beauv. more than 50% in 10 subregions. Frequency of occurance of Cynodon dactylon (L.) Pers. was observed 50.1, 50.9, 76.9% in Afsin, Caglayancerit and And?r?n, respectively and it was below 50% in other 7 subregions. In terms of coverage, Alopecurus myosuroides Huds., A. retroflexus, A. repens, B. arvensis, C. album, Convolvulus arvensis L., C. dactylon and Lactuca serriola L. were determined to be within the range of 20.2 to 48.2% in the study areas while the other species were below 20%.Bangladesh J. Agril. Res. 42(1): 87-102, March 2017

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