Synthesis of hydrocarbon vinyl polymer, its properties, applications, yearly production, and conjointly process

2021 ◽  
Author(s):  
S M Nazmuz Sakib
Keyword(s):  
Vinyl Polymer ◽  
Pipe Fittings ◽  
Electronic Housing ◽  
Selection Of

The compound elected for creating this report is propenonitrile hydrocarbon vinyl polymer. The compound is additionally abbreviated as ABS and it's better-known to be a thermoplastic compound. It's an opaque engineering compound and is employed in a very wide selection of areas as well as electronic housing, automotive elements, totally different classes of shopper product, pipe fittings, and conjointly producing of plaything based mostly toy things. The report is comprised of synthesis of compound, its properties, applications, yearly production, and conjointly process of compound into the ultimate form and article.

Selection of hematopoietic stem cells with a combination of galactose-bound vinyl polymer and soybean agglutinin, a galactose-specific lectin

Transfusion ◽  
2008 ◽  
Vol 48 (3) ◽  
pp. 561-566 ◽  
Author(s):  
Hirofumi Yura ◽  
Yasuhiro Kanatani ◽  
Masayuki Ishihara ◽  
Bonpei Takase ◽  
Masaki Nambu ◽  
...  
Keyword(s):  
Stem Cells ◽  
Hematopoietic Stem Cells ◽  
Soybean Agglutinin ◽  
Hematopoietic Stem ◽  
Vinyl Polymer ◽  
Selection Of

scholarly journals Design and Development of Broaching Machine for Splines: A Case Study

2022 ◽  
Vol 24 (1) ◽  
pp. 152-164
Author(s):  
Vrushabh A.Madnaik ◽  
◽  
V.R. Naik ◽  
Keyword(s):  
Design And Development ◽  
Hydraulic Power ◽  
Cycle Times ◽  
Frame Design ◽  
Machine Selection ◽  
Pipe Fittings ◽  
Very High ◽  
Selection Of

Broaching machine is mainly developed for special purposes where cycle times are less and number of job quantity is very high. Only at such points development of broaching machine is justified. Design of such broaching machine is totally customizable. This paper discuss about frame design of machine, selection of guideways, design of hydraulic power pack for hydraulic operated machine and also selection of various cylinders, pipe fittings, mandrels, pump, motor, etc. So, main purpose of this paper is designing the broaching machine which includes all its components. This paper focuses on selection of bought out parts too.

Analysis of genetic diversity in a sweetpotato (Ipomoea batatas) germplasm collection using DNA amplification fingerprinting

Genome ◽  
1995 ◽  
Vol 38 (5) ◽  
pp. 938-945 ◽  
Author(s):  
Guohao He ◽  
C. S. Prakash ◽  
R. L. Jarret
Keyword(s):  
Genetic Diversity ◽  
Ipomoea Batatas ◽  
Genetic Relationships ◽  
Germplasm Collection ◽  
Dna Amplification ◽  
Taq Polymerase ◽  
Plant Introductions ◽  
Vinyl Polymer ◽  
High Level ◽  
Selection Of

A DNA amplification fingerprinting (DAF) approach was employed to develop individual-specific profiles and analyze genetic relationships among 73 plant introductions of sweetpotato (Ipomoea batatas (L.) Lam.) including unadapted lines from around the world and a few selected U.S.A. cultivars. Reliable and informative fingerprint profiles were obtained employing single octamer primers and Stoffel fragment Taq polymerase in the polymerase chain reaction, polyacrylamide-based vinyl polymer for electrophoresis, and silver staining to visualize the DNA. Using seven highly informative octamer primers, individual-specific DAF profiles were obtained for all accessions tested. The degree of polymorphism in the sweetpotato collection was very large, indicating a high level of genetic variability. Several accessions clustered together based on their geographic source. Most U.S.A. cultivars formed a separate cluster in the phenogram, while accessions from Papua New Guinea exhibited the highest genetic diversity. The wild species I. triloba and tetraploid I. batatas formed a group distinct from the cultivated sweetpotato. DAF appears to be useful in sweetpotato germplasm characterization and may be employed to identify duplicate accessions or for creation of core subsets. DAF data may also be useful for facilitating the selection of parents for a breeding program to ensure a broad genetic base.Key words: DNA fingerprinting, DNA markers, germplasm, genetic diversity, RAPD markers.

Selection of boundary conditions in performing thermal calculation of pipe fittings

1987 ◽  
Vol 23 (3) ◽  
pp. 119-121
Author(s):  
N. S. Kosykh ◽  
V. V. Nikitin ◽  
E. �. Godyaeva
Keyword(s):  
Boundary Conditions ◽  
Thermal Calculation ◽  
Pipe Fittings ◽  
Selection Of

Cognitive gadgets and cognitive priors

2019 ◽  
Vol 42 ◽  
Author(s):  
Gian Domenico Iannetti ◽  
Giorgio Vallortigara
Keyword(s):  
Cognitive Neuroscience ◽  
Selection Of

Abstract Some of the foundations of Heyes’ radical reasoning seem to be based on a fractional selection of available evidence. Using an ethological perspective, we argue against Heyes’ rapid dismissal of innate cognitive instincts. Heyes’ use of fMRI studies of literacy to claim that culture assembles pieces of mental technology seems an example of incorrect reverse inferences and overlap theories pervasive in cognitive neuroscience.

Note on Selection of Coordinate Systems for Geodynamics

1975 ◽  
Vol 26 ◽  
pp. 395-407
Author(s):  
S. Henriksen
Keyword(s):  
Sea Level ◽  
The Other ◽  
Coordinate Systems ◽  
Mean Sea Level ◽  
The Earth ◽  
The One ◽  
Static Systems ◽  
Selection Of

The first question to be answered, in seeking coordinate systems for geodynamics, is: what is geodynamics? The answer is, of course, that geodynamics is that part of geophysics which is concerned with movements of the Earth, as opposed to geostatics which is the physics of the stationary Earth. But as far as we know, there is no stationary Earth – epur sic monere. So geodynamics is actually coextensive with geophysics, and coordinate systems suitable for the one should be suitable for the other. At the present time, there are not many coordinate systems, if any, that can be identified with a static Earth. Certainly the only coordinate of aeronomic (atmospheric) interest is the height, and this is usually either as geodynamic height or as pressure. In oceanology, the most important coordinate is depth, and this, like heights in the atmosphere, is expressed as metric depth from mean sea level, as geodynamic depth, or as pressure. Only for the earth do we find “static” systems in use, ana even here there is real question as to whether the systems are dynamic or static. So it would seem that our answer to the question, of what kind, of coordinate systems are we seeking, must be that we are looking for the same systems as are used in geophysics, and these systems are dynamic in nature already – that is, their definition involvestime.

Measurements of the Cape Astrometric Survey of the Southern Hemisphere

1978 ◽  
Vol 48 ◽  
pp. 515-521
Author(s):  
W. Nicholson
Keyword(s):  
Southern Hemisphere ◽  
Automatic Measuring ◽  
Measuring Machine ◽  
Final Selection ◽  
Selection Of

SummaryA routine has been developed for the processing of the 5820 plates of the survey. The plates are measured on the automatic measuring machine, GALAXY, and the measures are subsequently processed by computer, to edit and then refer them to the SAO catalogue. A start has been made on measuring the plates, but the final selection of stars to be made is still a matter for discussion.

Application of Improved Voltage Compensation in the SEM to Imaging of Organic Materials

1973 ◽  
Vol 31 ◽  
pp. 444-445
Author(s):  
P.J. Killingworth ◽  
M. Warren
Keyword(s):  
Electron Beam ◽  
Organic Materials ◽  
Operating Parameters ◽  
Low Density ◽  
Beam Diameter ◽  
Incident Electron Beam ◽  
Specimen Material ◽  
Voltage Compensation ◽  
Selection Of ◽  
Scanning Electron

Ultimate resolution in the scanning electron microscope is determined not only by the diameter of the incident electron beam, but by interaction of that beam with the specimen material. Generally, while minimum beam diameter diminishes with increasing voltage, due to the reduced effect of aberration component and magnetic interference, the excited volume within the sample increases with electron energy. Thus, for any given material and imaging signal, there is an optimum volt age to achieve best resolution.In the case of organic materials, which are in general of low density and electric ally non-conducting; and may in addition be susceptible to radiation and heat damage, the selection of correct operating parameters is extremely critical and is achiev ed by interative adjustment.

Selection and Preparation of Specific Tissue Regions For Tem Using Large Epoxy-Embedded Blocks

1973 ◽  
Vol 31 ◽  
pp. 324-325 ◽  
Author(s):  
P. M. Lowrie ◽  
W. S. Tyler
Keyword(s):  
Electron Microscopy ◽  
Anatomical Structures ◽  
Ultrastructural Studies ◽  
Transmission Electron ◽  
Microscopic Evaluation ◽  
Embedded Blocks ◽  
Specific Tissue ◽  
Definition Of ◽  
Areas Of Interest ◽  
Selection Of

The importance of examining stained 1 to 2μ plastic sections by light microscopy has long been recognized, both for increased definition of many histologic features and for selection of specimen samples to be used in ultrastructural studies. Selection of specimens with specific orien ation relative to anatomical structures becomes of critical importance in ultrastructural investigations of organs such as the lung. The uantity of blocks necessary to locate special areas of interest by random sampling is large, however, and the method is lacking in precision. Several methods have been described for selection of specific areas for electron microscopy using light microscopic evaluation of paraffin, epoxy-infiltrated, or epoxy-embedded large blocks from which thick sections were cut. Selected areas from these thick sections were subsequently removed and re-embedded or attached to blank precasted blocks and resectioned for transmission electron microscopy (TEM).

The DQE of an electron image recording system

1978 ◽  
Vol 36 (1) ◽  
pp. 100-101
Author(s):  
K.-H. Herrmann ◽  
D. Krahl ◽  
H.-P Rust
Keyword(s):  
Primary Electron ◽  
Ideal Case ◽  
Image Recording ◽  
Main Requirement ◽  
High Detection ◽  
Electron Image ◽  
Video Amplifier ◽  
Detection Quantum Efficiency ◽  
Selection Of ◽  
The Ideal

The high detection quantum efficiency (DQE) is the main requirement for an imagerecording system used in electron microscopy of radiation-sensitive specimens. An electronic TV system of the type shown in Fig. 1 fulfills these conditions and can be used for either analog or digital image storage and processing [1], Several sources of noise may reduce the DQE, and therefore a careful selection of various elements is imperative.The noise of target and of video amplifier can be neglected when the converter stages produce sufficient target electrons per incident primary electron. The required gain depends on the type of the tube and also on the type of the signal processing chosen. For EBS tubes, for example, it exceeds 10. The ideal case, in which all impinging electrons create uniform charge peaks at the target, is not obtainable for several reasons, and these will be discussed as they relate to a system with a scintillator, fiber-optic and photo-cathode combination as the first stage.

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