scholarly journals Receptions of mechanical equipment used to stimulate the memory process in the department of medical biology and genetics UGMU

2019 ◽  
pp. 14-17
Author(s):  
Vasiliy Mikhailovich Petrov ◽  
Elena Aleksandrovna Shorikova ◽  
Olga Vladimirovna Kostromina ◽  
Daria Aleksandrovna Proshchenko
Keyword(s):  
Biological Material ◽  
Mechanical Equipment ◽  
Memory Process ◽  
Effective Technique ◽  
Amount Of Information ◽  
Psychological Techniques ◽  
Letter Code ◽  
Short Time

The article is devoted to the problem of finding productive pedagogical and psychological techniques that help to structure a large amount of information in a short time. As a solution to this issue, it is proposed to use methods of mnemotechnics for students to master complex biological material. The paper presents the results of a study by the authors, which showed that the most difficult for students of the course of cytology are associated with a large amount of memorization units, and the most effective technique used to study this topic is the letter code.

scholarly journals Feature Extraction of Impulse Faults for Vibration Signals Based on Sparse Non-Negative Tensor Factorization

2019 ◽  
Vol 9 (18) ◽  
pp. 3642
Author(s):  
Lin Liang ◽  
Haobin Wen ◽  
Fei Liu ◽  
Guang Li ◽  
Maolin Li
Keyword(s):  
Feature Extraction ◽  
Fourier Transform ◽  
Mechanical Equipment ◽  
Tensor Factorization ◽  
Short Time Fourier Transform ◽  
Vibration Signals ◽  
Frequency Distributions ◽  
Time Frequency ◽  
Value Decomposition ◽  
Short Time

The incipient damages of mechanical equipment excite weak impulse vibration, which is hidden, almost unobservable, in the collected signal, making fault detection and failure prevention at the inchoate stage rather challenging. Traditional feature extraction techniques, such as bandpass filtering and time-frequency analysis, are suitable for matrix processing but challenged by the higher-order data. To tackle these problems, a novel method of impulse feature extraction for vibration signals, based on sparse non-negative tensor factorization is presented in this paper. Primarily, the phase space reconstruction and the short time Fourier transform are successively employed to convert the original signal into time-frequency distributions, which are further arranged into a three-way tensor to obtain a time-frequency multi-aspect array. The tensor is decomposed by sparse non-negative tensor factorization via hierarchical alternating least squares algorithm, after which the latent components are reconstructed from the factors by the inverse short time Fourier transform and eventually help extract the impulse feature through envelope analysis. For performance verification, the experimental analysis on the bearing datasets and the swashplate piston pump has confirmed the effectiveness of the proposed method. Comparisons to the traditional methods, including maximum correlated kurtosis deconvolution, singular value decomposition, and maximum spectrum kurtosis, also suggest its better performance of feature extraction.

The International Telegraph Conference of Brussels and the Problem of Code Language

1929 ◽  
Vol 23 (2) ◽  
pp. 292-306 ◽  
Author(s):  
Irvin Stewart
Keyword(s):  
Amount Of Information ◽  
New Instrument ◽  
Code Language ◽  
Short Time

The first telegraph had been in operation only a short time when a code was made available to the users of the new instrument. From that time to the present, codes for use in electrical communications have appeared in ever-increasing number. Two principal objects have been sought and achieved by their use: secrecy and economy. To the business man, the second of these objects is paramount; and code-makers have constantly endeavored to express an increasing amount of information in a given number of letters.

Effects of Processing Parameters on the Morphology and Size of Electrospun PHBV Micro- and Nano-Fibers

2007 ◽  
Vol 334-335 ◽  
pp. 1233-1236 ◽  
Author(s):  
Ho Wang Tong ◽  
Min Wang
Keyword(s):  
Tissue Engineering ◽  
Polymer Solution ◽  
Polymer Concentration ◽  
Solution Concentration ◽  
Processing Parameters ◽  
Electrospun Fibers ◽  
Effective Technique ◽  
Electrospinning Technique ◽  
Needle Diameter ◽  
Short Time

Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) was used to fabricate micro- and nano-fibrous, non-woven mats by electrospinning for potential tissue engineering applications. The morphology and size of electrospun fibers were assessed systematically by varying the processing parameters. It was found that the diameter of the fibers produced generally increased with electrospinning voltage, needle diameter for the polymer jet and polymer solution concentration. Beaded fibers were readily produced at low PHBV concentrations, whereas the needle was blocked within a very short time during electrospinning when the PHBV concentration was too high. At the polymer concentration of 7.5 % w/v, it was shown that beadless PHBV fibers could be generated continuously by adjusting the electrospinning parameters to appropriate values. This study has clearly demonstrated that electrospinning can be an effective technique to produce PHBV micro- and nano-fibers. It has also been shown that composite fibers containing hydroxyapatite (HA) can be produced using the electrospinning technique.

scholarly journals ANALYSIS OF THE PROCESS OF CREATION AND USE OF MOBILE APPLICATIONS

2020 ◽  
Vol 70 (2) ◽  
pp. 223-228
Author(s):  
R.K. Zhirenbaeva ◽  
◽  
M. Raev ◽  
B.Zh. Kirgizbaeva ◽  
◽  
...  
Keyword(s):  
Mobile Devices ◽  
Mobile Communications ◽  
Mobile Applications ◽  
Information Technologies ◽  
Information Space ◽  
Amount Of Information ◽  
Short Period ◽  
The World ◽  
Short Time

At the present time, thanks to the fact that the world works in the information space with a large amount of information, it has become one of the most important measures for that, in a short time, for a short period of time. Therefore, for informing the world, only one computer connection became insufficient, it is very important to expand the connection through mobile devices, to use and develop mobile applications. Necessary information technologies for the integration of mobile communications are actively developing. This article discusses the widespread use of mobile applications for the development of mobile communications and their classification by structure and composition. Consider the features

Accelerated Cooling of Wet, Heavily Salted Fish

1963 ◽  
Vol 20 (4) ◽  
pp. 997-1000
Author(s):  
A. L. Wood
Keyword(s):  
Cold Storage ◽  
Bacterial Contamination ◽  
Accelerated Cooling ◽  
Mechanical Equipment ◽  
Salted Fish ◽  
Storage Area ◽  
Excessive Load ◽  
Short Time ◽  
Thick Layers ◽  
F 14

"Green" heavily salted split fish may be pre-cooled within a cold storage area with ice and salt, without imposing an excessive load upon storage refrigeration facilities and with little additional labour. Twelve pounds of ice plus 4 lb of salt per 100 lb of fish, uniformly applied between 3- to 4-inch thick layers of fish, will reduce the bulk fish temperature by 25°F (14 °C) in less than 8 hours.No mechanical equipment is required if flake ice be deemed a commodity. The direct cost may be estimated at less than 15 cents per 100 lb of finished (dried) fish.Pre-cooling is not essential under normal conditions but is recommended for heavily salted fish in which the degree of red bacterial contamination is unknown or suspected to be critical, and the storage refrigeration is not adequate to cool the product in a sufficiently short time.

Focal Words and the Recovery of Sentence Meaning

1980 ◽  
Vol 47 ◽  
pp. 15-27
Author(s):  
Dr. Steven Darian
Keyword(s):  
Foreign Language ◽  
Language Learner ◽  
Amount Of Information ◽  
Sentence Meaning ◽  
Tremendous Amount ◽  
Original Message ◽  
Foreign Language Learner ◽  
Short Time ◽  
Relationship Of ◽  
The Relationship

Abstract In listening and reading, the foreign language learner must be able to process a tremendous amount of information in a short time. In order to do this, he must develop a strategy for choosing those items that help in recovering that information. One way of doing this is to concentrate on focal words: words containing key elements of meaning in the sentence. These words may then be used - in speech and writing - to reconstruct the original message. This paper explores the relationship of focel words to other sentence elements and describes various focal word exercises for listening and reading.

scholarly journals Directional memory arises from long-lived cytoskeletal asymmetries in polarized chemotactic cells

2016 ◽  
Vol 113 (5) ◽  
pp. 1267-1272 ◽  
Author(s):  
Harrison V. Prentice-Mott ◽  
Yasmine Meroz ◽  
Andreas Carlson ◽  
Michael A. Levine ◽  
Michael W. Davidson ◽  
...  
Keyword(s):  
Chemical Cues ◽  
Memory Process ◽  
Complex Environments ◽  
Chemical Gradient ◽  
Cellular Behavior ◽  
Phospholipid Signaling ◽  
Memory Inhibition ◽  
Short Time ◽  
And Control ◽  
Migration Of Cells

Chemotaxis, the directional migration of cells in a chemical gradient, is robust to fluctuations associated with low chemical concentrations and dynamically changing gradients as well as high saturating chemical concentrations. Although a number of reports have identified cellular behavior consistent with a directional memory that could account for behavior in these complex environments, the quantitative and molecular details of such a memory process remain unknown. Using microfluidics to confine cellular motion to a 1D channel and control chemoattractant exposure, we observed directional memory in chemotactic neutrophil-like cells. We modeled this directional memory as a long-lived intracellular asymmetry that decays slower than observed membrane phospholipid signaling. Measurements of intracellular dynamics revealed that moesin at the cell rear is a long-lived element that when inhibited, results in a reduction of memory. Inhibition of ROCK (Rho-associated protein kinase), downstream of RhoA (Ras homolog gene family, member A), stabilized moesin and directional memory while depolymerization of microtubules (MTs) disoriented moesin deposition and also reduced directional memory. Our study reveals that long-lived polarized cytoskeletal structures, specifically moesin, actomyosin, and MTs, provide a directional memory in neutrophil-like cells even as they respond on short time scales to external chemical cues.

Peroxide-free redox initiating systems for polymerization in mild conditions

2021 ◽  
Vol 12 (12) ◽  
pp. 1816-1822
Author(s):  
Ahmad Arar ◽  
Assi Al Mousawi ◽  
Fabrice Morlet-Savary ◽  
Jacques Lalevée
Keyword(s):  
Energy Consumption ◽  
Free Radical ◽  
Radical Polymerization ◽  
Time Scale ◽  
Cost Effective ◽  
Short Time Scale ◽  
Effective Technique ◽  
Mild Conditions ◽  
Cost Effective Technique ◽  
Short Time

Redox free radical polymerization (RFRP) is considered as a cost-effective technique for the production of polymers in a very short time scale and without any energy consumption.

Statistical analysis of classification

1966 ◽  
Vol 24 ◽  
pp. 188-189
Author(s):  
T. J. Deeming
Keyword(s):  
Multivariate Analysis ◽  
Statistical Analysis ◽  
Classification Scheme ◽  
Analytical Procedure ◽  
Narrow Band ◽  
Scientific Research ◽  
Maximum Amount ◽  
Amount Of Information

If we make a set of measurements, such as narrow-band or multicolour photo-electric measurements, which are designed to improve a scheme of classification, and in particular if they are designed to extend the number of dimensions of classification, i.e. the number of classification parameters, then some important problems of analytical procedure arise. First, it is important not to reproduce the errors of the classification scheme which we are trying to improve. Second, when trying to extend the number of dimensions of classification we have little or nothing with which to test the validity of the new parameters.Problems similar to these have occurred in other areas of scientific research (notably psychology and education) and the branch of Statistics called Multivariate Analysis has been developed to deal with them. The techniques of this subject are largely unknown to astronomers, but, if carefully applied, they should at the very least ensure that the astronomer gets the maximum amount of information out of his data and does not waste his time looking for information which is not there. More optimistically, these techniques are potentially capable of indicating the number of classification parameters necessary and giving specific formulas for computing them, as well as pinpointing those particular measurements which are most crucial for determining the classification parameters.

What the replication reformation wrought

2018 ◽  
Vol 41 ◽  
Author(s):  
Barbara A. Spellman ◽  
Daniel Kahneman
Keyword(s):  
Reform Movement ◽  
Short Time

AbstractReplication failures were among the triggers of a reform movement which, in a very short time, has been enormously useful in raising standards and improving methods. As a result, the massive multilab multi-experiment replication projects have served their purpose and will die out. We describe other types of replications – both friendly and adversarial – that should continue to be beneficial.

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