Development of new methods of selection of multifocal intraocular correction in cataract surgery

2021 ◽  
Vol 95 (6) ◽  
pp. 21-24
Author(s):  
M. A. Alnoelaty ALmasri ◽  
◽  
V. C. Stebnev ◽  
Keyword(s):  
Cataract Surgery ◽  
New Methods ◽  
Selection Of

Advantages in Environmental Compliance For Maritime Corrosion Control

2015 ◽  
Author(s):  
Eric Lethe
Keyword(s):  
Material Selection ◽  
Shop Floor ◽  
Chief Financial Officer ◽  
Successful Implementation ◽  
The Past ◽  
New Methods ◽  
Traditional Procedure ◽  
Environmentally Sound ◽  
A Company ◽  
Selection Of

The need for environmentally compliant processes and materials in the Painting Industry grows more pressing every day. As the need for these processes grows, so grows the confusion regarding the selection and implementation of these new methods and materials. In the past, price and traditional procedure were the only criteria by which a material was procured. Speed and compliance with Original Equipment Manufacturer specification governed how things were done on the shop floor. With the advent of the environmental regulations, processes are being examined all across the globe. In many of the larger companies, the chief environmental officer has as important a role as the comptroller or Chief Financial Officer. Environmental managers are often not chemists or line painters, and typically, the environmental manager is skilled only in the policies of waste disposal, spill clean up, or remediation. The methods whereby a company can minimize the generation of hazardous waste remain less familiar. Often the examination of possible alternate techniques and materials are left for the last minute, or are conducted by personnel who are unfamiliar with how to make changes work. This is usually a recipe for failure in the implementing of anything new. This paper will suggest methods for selection of alternative products and processes in a clear and organized manner. Salient discussion points will be: 1. Process Examination 2. Material Selection 3. Steps For Successful Implementation 4. Possible Impediments 5. How to Avoid Risky Alternatives It will focus on procedures that will assist in the decision making process, and hopefully be of use in the choosing of environmentally sound equipment, chemicals, and methodologies.

Improving Accounting Of Internet Technologies Costs In Russia

2018 ◽  
pp. 117-132
Author(s):  
Irina Litvinova
Keyword(s):  
Internet Technology ◽  
Frequency Of Occurrence ◽  
Internet Technologies ◽  
New Methods ◽  
Time Period ◽  
The Cost ◽  
Selection Of ◽  
Theoretical Developments

This article substantiates the selection of a new object in accounting – the cost of Internet technology. The author presents new methods for accounting the costs of Internet technologies and provides the interpretation of the concept of «virtual assets». The author considers it necessary to introduce separate accounts for accounting the costs of Internet technologies. We believe that this approach will allow to see the total amount of the costs of Internet technologies, which is important for purposes of planning, monitoring and analysis, as well as to resolve contentious issues arising in accounting the costs of Internet technologies, which will significantly facilitate the work of accountants. In the absence of theoretical developments in accounting the costs of Internet technologies we make the first attempts to classify the costs of Internet technologies. We propose grouping the costs according to the following criteria: their purpose; frequency of occurrence (one-time and ongoing); gains in the time period (current, deferred costs and capital). The author concludes with a recommended register for accounting the costs of Internet technologies.

Processing Technologies Applied for Realizing New Medical Micro-Devices Components

2018 ◽  
Vol 27 ◽  
pp. 98-102
Author(s):  
Aurel Valentin Bîrdeanu ◽  
Mihaela Bîrdeanu ◽  
Gabriel Gruionu ◽  
Lucian Gheorghe Gruionu
Keyword(s):  
Stainless Steel ◽  
Laser Beam ◽  
Medical Devices ◽  
Proof Of Concept ◽  
Processing Technologies ◽  
New Methods ◽  
Nitinol Alloy ◽  
Bio Compatibility ◽  
Mechanical Machining ◽  
Selection Of

The paper presents the new methods of use of processing technologies for realizing proof-of-concept new medical micro-devices components. By using both classical mechanical machining and unconventional laser beam cutting and welding combined with soldering two proof-of-concept medical devices components were realized. The materials processed were stainless steel and super-elastic nitinol alloy. The selection of the processing technologies was done based on the specific requirements of the devices components as well as the characteristics of the applied materials. The selected technologies were fit for the requirements of the proof-of-concept medical micro-devices components, further RTD work being needed in order to comply with the bio-compatibility and in-exploitation requirements. The specific outcomes of using classical mechanical machining and laser beam processing are presented.

scholarly journals Adaptive multivariable relay protection of reconfigurable distribution networks

2019 ◽  
Vol 139 ◽  
pp. 01048
Author(s):  
Mikhail Sharygin ◽  
Vladimir Vukolov ◽  
Anton Petrov
Keyword(s):  
Distributed Generation ◽  
Hardware Implementation ◽  
Human Factor ◽  
Dynamic Change ◽  
Relay Protection ◽  
Distribution Networks ◽  
New Methods ◽  
Automatic Mode ◽  
Relative Selectivity ◽  
Selection Of

Version of relay protection construction of relative selectivity is proposed, which allows increasing its technical perfection and reliability in microgrids with distributed generation sources. This is done by increasing the dimension of the measurement space along arbitrary axes, introducing new methods of recognizing emergency modes, as well as automating the selection of response parameters. Hardware implementation of protection is described. Recommendations for calculating the settings of multidimensional protection and an example of calculation are given. Protection coordination is carried out by using graphical-analytical methods in automatic mode. Automation of the calculation, elimination of the human factor will make it possible to apply the method for adaptation of protection in the conditions of dynamic change of microgrid topology.

scholarly journals Status Report of the Work on the FK5

1986 ◽  
Vol 7 ◽  
pp. 69-72
Author(s):  
H. Schwan
Keyword(s):  
Fundamental System ◽  
Status Report ◽  
Preliminary Results ◽  
New Methods ◽  
Observational Material ◽  
Methods Of Analysis ◽  
Selection Of

AbstractA survey is given on the tasks to be performed in the process of improving a fundamental system. Completed tasks are the derivation of corrections to the values for general precession and the determination of the FK4 equinox and equator. The selection of new fundamental stars and the improvement of the systematic and individual accuracy of the FK4 is in progress. A description of the observational material and of new methods of analysis is given. Preliminary results are reported.

scholarly journals Freeze-thaw risk in solid masonry: are moisture reference years able to represent real climate conditions?

2019 ◽  
Vol 282 ◽  
pp. 02034
Author(s):  
Isabeau Vandemeulebroucke ◽  
Steven Caluwaerts ◽  
Nathan Van Den Bossche
Keyword(s):  
Building Envelopes ◽  
Damage Criterion ◽  
Climate Conditions ◽  
Freeze Thaw ◽  
Start Date ◽  
New Methods ◽  
Smart Start ◽  
Wall Assembly ◽  
Selection Of

Today, there is no consensus on the selection method of representative exterior boundary conditions when performing HAM (Heat Air Moisture) simulations on building envelopes. Many existing methods to select moisture reference years (MRY) fail to provide an acceptable validation in terms of quantified risk assessment. Although new methods have been suggested during the past few years, the influence of several parameters on the selection of “critical years” in long-term datasets still needs to be assessed. The objective of this paper is to validate the application of MRY’s to evaluate freeze-thaw risk in retrofitted solid masonry. Furthermore, the influence of the chosen wall assembly, damage criterion, preconditioning and start date of the evaluation period on the ranking of critical years is assessed, using a 31-year meteorological dataset of Brussels. Results indicate that for a given wall assembly and freeze-thaw criterion, as well as a smart start date of the evaluated period, single year simulations entail a similar ranking of critical years as the corresponding year in the 31-year simulation. The number of critical freeze-thaw cycles only varies between 0 - 2 cycles (0 - 2.9%). However, changing the wall assembly and damage criterion, alters the top 5 ranking of critical years substantially.

An Exploratory Study of the Discovery and Selection of Design Methods in Practice

2016 ◽  
Vol 138 (10) ◽  
Author(s):  
Kilian Gericke ◽  
Julia Kramer ◽  
Celeste Roschuni
Keyword(s):  
Communities Of Practice ◽  
Professional Practice ◽  
Exploratory Study ◽  
Design Methods ◽  
Web Based ◽  
New Methods ◽  
Potential Link ◽  
The Rich ◽  
Further Development ◽  
Selection Of

This work seeks to understand how design practitioners discover, select, and adapt design methods and methodologies. Design methods and methodologies are mainly used for educational purposes and are not formally transferred into design practice and industry. This prevents design practitioners from accessing the rich body of research and knowledge posed by academia. Various web platforms and textbooks allow users to discover or search for design methods, but little support is provided to assess whether or not a method is appropriate for the context or the task at hand. In this exploratory study, interviews were conducted with practicing engineers and designers. Interview responses were coded and analyzed in an effort to understand the patterns in searching, selecting, assessing, and exchanging experiences with peers in professional practice. This analysis showed that interviewees would like to search for design methods based on their desired outcomes. Additionally, interviewees considered their personal contacts to be the most valuable source of new methods. These insights show that web-based communities of practice may be a potential link between academia and industry, but existing web repositories and communities require further development in order to better meet the needs of the design practitioner community.

Noniterative Factor Analysis Estimators, With Algorithms for Subset and Instrumental Variable Selection

1991 ◽  
Vol 16 (1) ◽  
pp. 35-52 ◽  
Author(s):  
Robert Cudeck
Keyword(s):  
Monte Carlo ◽  
Factor Analysis ◽  
Variable Selection ◽  
Instrumental Variable ◽  
Relative Performance ◽  
Monte Carlo Experiment ◽  
Analysis Model ◽  
Factor Analysis Model ◽  
New Methods ◽  
Selection Of

Noniterative estimators of the unrestricted factor analysis model have been developed by, among others, Hägglund (1982) and Ihara and Kano (1986) that are consistent and very efficient computationally. Whereas each of these methods has several desirable properties, both require a subjective decision regarding the selection of subsets of variables that are needed to compute estimates of the parameters. An algorithm called PACE, based on an application of the sweep operator, is presented that automatically selects subsets of variables used for the Ihara-Kano estimator. A second algorithm initially presented by Du Toit (1986) is also described that automatically selects reference variables used in Hägglund’s Fabin estimators. A Monte Carlo experiment is reviewed that compares the relative performance of these estimators in addition to several others. Both new methods performed well in this experiment. Their relative merits on other criteria are discussed.

scholarly journals Selection of breeding roosters during artificial insemination by the reaction of tonic immobility

2020 ◽  
Vol 2 (1) ◽  
pp. 29-38
Author(s):  
Igor I. Popov ◽  
Svetlana A. Shabanova ◽  
Yulia V. Shoshina
Keyword(s):  
Artificial Insemination ◽  
Small Volume ◽  
Tonic Immobility ◽  
The Body ◽  
Phenotypic Characteristics ◽  
Main Attention ◽  
Immobility Reaction ◽  
New Methods ◽  
Genetic Potential ◽  
Selection Of

The profitability increase of using laying hens is associated with an increase in their productivity and reduction of maintenance costs. This problem can be solved by two approaches: new methods for increasing the genetic potential of economically useful traits of chickens are being developed, and methods of ensuring the fullest realization of this potential are being sought. The main attention is paid to the selection of roosters, whose breeding qualities largely determine the “saturation” of the flock with the desirable genotypes. Analysis of the results of our research shows that roosters, especially in the maternal form, allocate very small amounts of ejaculate when massaging; most males have a difficult reaction to the massage. Moreover, by the age of 240 days, under the influence of long training, the number of such roosters decreased to 20-25%. However, the roosters, who later began to respond to the massage, often released ejaculates with volumes up to 0.2 cm3. Studies have shown that in the group of roosters with a small volume of ejaculate, the highest percentage (29.2%) of roosters was with a bad reaction to the massage and only 8.3% of roosters was with a good reaction. In the group with a large volume of ejaculates, there are 64.8% more roosters with a good response to the massage compared to the I group and 67.8% compared to the II group. When describing the duration of tonic immobility reaction of roosters, who release ejaculates with different volumes during the massage, which, as indicated earlier, reflects the level of arousal and inhibition processes, it turned out that the least duration of the state of tonic immobility reaction was found in roosters that give small volumes of sperm (60%) and only 10% of males had a duration of tonic immobility reaction within 409-900 seconds. There is a violation of the normal flow of neuroreflective processes in the body in the roosters with an increased process of arousal, which is manifested, for example, during natural mating. Such roosters have a bad reaction to massage and give small amounts of sperm. Therefore, determining the level of hypnotic state in roosters, that is, identifying the degree of balance between arousal and inhibitory processes can serve as an additional criterion for the phenotypic characteristics of breeding roosters with a certain response to massage and the volume of ejaculate.

scholarly journals Pedagogical heritage of the white émigré in the works of E. G. Osovsky

2020 ◽  
pp. 75-85
Author(s):  
Vera Petrovna Kirzhaeva ◽  
Alla Ivanovna Marinichenko ◽  
Alina Andreevna Piskunova
Keyword(s):  
Scientific Discourse ◽  
Comprehensive Analysis ◽  
Research Trends ◽  
Traditional Methods ◽  
New Methods ◽  
Methods Of Analysis ◽  
Extensive Coverage ◽  
The Subject ◽  
Selection Of ◽  
Pedagogical Science

The subject of this research is the works of the prominent Russian historian of education, corresponding member of the Russian Academy of Education E. G. Osovsky (1930-2004), dedicated to the analysis of schools, education and pedagogical thought of the white émigré. The article specifies the reasons for scholar’s selection of a new pedagogical topic at the turn of the 1980s – 1990s, outlines the implemented research approaches and problem fields, as well as offers the analysis of his central works. The presented in his works comprehensive analysis of the phenomenon of pedagogical emigration gave the opportunity for upcoming generations of researchers to create a holistic picture of establishment and development of schools, education and pedagogical thought of white émigré. The authors describe the key research trends of the scholar, characterize their impact upon the development of modern historical-pedagogical science and its prospects, which defines the relevance of this article. The extensive coverage of sources, introduction into the scientific discourse of the materials from personal archive of the scholar, rare publications comprise the scientific novelty of this study. The implementation of the approach based on the combination of traditional methods of historical and pedagogical science, as well as new methods of analysis (hermeneutical, contextual, microhistorical), provides the essential cross-disciplinarity and underlines the effectiveness of its application in studying the heritage of the prominent Russian pedagogues.

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