scholarly journals Effect of random component in tool profile deviations upon dynamics of external circular grinding

2016 ◽  
Vol 1 (5) ◽  
pp. 10-17
Author(s):  
Юрий Новоселов ◽  
Yuriy Novosyolov ◽  
С. Братан ◽  
S. Bratan ◽  
Владимир Богуцкий ◽  
...  
Keyword(s):  
Radius Vector ◽  
Random Component ◽  
Process Dynamics ◽  
Work Surface ◽  
Billet Surface ◽  
Abrasive Disk ◽  
Tool Profile ◽  
Spectrum Characteristics ◽  
Further Development ◽  
A Current

This paper reports the estimation carried out of the state influence of a disk work surface upon output indices of external circular grinding. There are offered dependences for the computation of a mathematical expectation, correlation function and dispersion of a current radius-vector. The analysis of influence of a profile random component upon a process dynamics is carried out. The examples of spectrum characteristics of a random component of a tool profile deviations, a square of module frequency characteristics of the system and power spectrum of tool center oscillations caused by random deviations in an abrasive disk profile are shown. The interrelations established allow forecasting the behavior of an external round grinding, computing corrective control impacts, and carrying out a billet surface effective working taking into account conditions changed. The outlooks for the further development of results obtained consist in their application for the choice of project solutions, the characteristics evaluation of technological grinding systems and grinding optimization at billet working on the automated equipment.

scholarly journals Innovative tourism product as a factor in the development of the tourism industry

2020 ◽  
Vol 11 (2) ◽  
pp. 33-40
Author(s):  
I. Kudinova ◽  
Keyword(s):  
Foreign Investment ◽  
Current Problem ◽  
Tourism Industry ◽  
Tourist Industry ◽  
Tourism Product ◽  
Marketing Service ◽  
Favorable Conditions ◽  
Further Development ◽  
A Current ◽  
Trend Direction

The research of the conformation and development of innovative tourist products is a current problem today. The article summarized and systematized the innovative features of the tourist product in order to build the tourist industry and increase the competitiveness of the tourist industry. It stated that innovation is a necessary process in creating a new attractive tourist product, also in creating сonducive conditions for intensifying the activity of investors in the tourist sphere of the country. The following types of innovations in the tourist industry are listed, namely: product, technological, marketing, service, organizational and management innovations and innovations of logistics. The competitive strengths which should be the basis of formation of competitiveness of Ukraine in the field of tourist business, are highlighted, namely: unique healing climate, numerous territories with therapeutic opportunities, considerable historical and cultural potential, attractiveness of our country's tourist industry for foreign investment. Also defined are the problematic directions regarding the tourist attractiveness of Ukraine. Emphasis is placed on the fact that the state should support the development of tourist business in Ukraine in accordance with the following principles: to provide financing in accordance with the needs of the industry, to create favorable conditions for its further development, to determine and maintain priority directions of the development of the industry, to support and protect the Ukrainian and foreign tourists, tour operators and agents and their associations. The popular and new innovative directions of tourist, trends and technologies that are currently in demand with tourists are identified. Each tourist trend direction is described. The main requirements are listed and proposals are made to create an innovative tourist product.

Application of Gene Probes to Virus Detection in Water

1989 ◽  
Vol 21 (3) ◽  
pp. 147-154 ◽  
Author(s):  
Charles P. Gerba ◽  
Aaron B. Margolin ◽  
Martinez J. Hewlett
Keyword(s):  
Cell Culture ◽  
Nucleic Acid ◽  
Virus Detection ◽  
Enteric Viruses ◽  
Serological Tests ◽  
Nucleic Acid Probes ◽  
Gene Probes ◽  
Detection Capabilities ◽  
Further Development ◽  
A Current

Gene probes offer a rapid and sensitive method for the detection of viruses in water and other environmental samples. Gene probes are small strands of nucleic acid labeled with radioactive or nonradioactive compounds for their detection. The target organism is identified by the hybridization of the probe to the organism's nucleic acid. Nucleic acid probes are at least 1000-fold more sensitive than serological tests such as enzyme-linked-immunoassay and do not first require cultivation of the virus for detection. Gene probes have been developed for organisms that do not grow in cell culture, and probes have been constructed for most of the major groups of enteric viruses. Gene probes have been applied to the detection of enteric viruses in water, marine sediment and shellfish. Radioactively labeled probes can detect as little as 1-10 infectious units of virus within 48 hours. A current disadvantage of probes is that they cannot determine the infectivity of the viruses; however, they can be used to quickly determine the growth of viruses in cell culture. Further development of nonradioactive probes should place virus detection capabilities into the hands of most water quality laboratories.

Design of Tools for Electrochemical Machining by the Boundary Element Method

1986 ◽  
Vol 200 (3) ◽  
pp. 195-205 ◽  
Author(s):  
O H Narayanan ◽  
S Hinduja ◽  
C F Noble
Keyword(s):  
Boundary Element Method ◽  
Boundary Conditions ◽  
Boundary Element ◽  
Electrochemical Machining ◽  
Two Dimensions ◽  
Different Boundary Conditions ◽  
Work Surface ◽  
Tool Profile ◽  
Tool Profiles ◽  
Element Method

Techniques for modelling electrochemical machining are briefly reviewed before concentrating on the boundary element method for computing the shape of tool profiles. The model described caters for problems which can be represented geometrically in two dimensions; it is iterative in nature and uses the approximate cos θ method to initiate the procedure. Subsequent iterations employ one of three formulations developed for correcting the tool profile to obtain workpiece equilibrium. Linear and quadratic isoparametric elements have been used and their relative accuracy is assessed. Special emphasis is placed on the design of tools expected to need sharp profile discontinuities and the merits of specifying different boundary conditions on the known work surface are examined.

scholarly journals Privacy Please: A Privacy Curriculum Taxonomy (PCT) For The Era Of Personal Intelligence

2011 ◽  
Vol 3 (3) ◽  
pp. 11
Author(s):  
E. Vincent Carter
Keyword(s):  
Business Education ◽  
Personal Information ◽  
Information Privacy ◽  
Digital Society ◽  
Education Leaders ◽  
Personal Intelligence ◽  
Business Curricula ◽  
Functional Areas ◽  
Further Development ◽  
A Current

This paper extends forward thinking by information ethics and business education scholars to introduce a Privacy Curriculum Taxonomy (PCT) that repurposes business curricula around the emerging personal information privacy paradigm. The seminal challenge confronting business education leaders is to respond to the ontological paradigm shift from a physical society driven by material and monetary processes, towards a digital society driven by information supply and the growing demand for information privacy. The PCT is advanced as an initial framework for engaging business curriculum planners in the considerations required to repurpose existing disciplines around digital society information and privacy processes. After a current literature review, the PCT is developed using a foundational set of information assurance principles. The PCT is business discipline specific, to catalyze incubation and further development within and across functional areas.

scholarly journals Quality of Life Regional Differences: Case of Self-Governing Regions of Slovakia

2020 ◽  
Vol 12 (7) ◽  
pp. 2924 ◽  
Author(s):  
Judit Oláh ◽  
Zuzana Hajduová ◽  
Roman Lacko ◽  
Pavol Andrejovský
Keyword(s):  
Quality Of Life ◽  
Regional Differences ◽  
Slovak Republic ◽  
Well Being ◽  
Current Topic ◽  
Literary Sources ◽  
Quality Of Life Index ◽  
Further Development ◽  
A Current

Quality of life is one of the most important areas of human well-being explored worldwide. The issue of quality of life, namely its quantification, is a current topic evidenced by a number of literary sources in the literature. We solved this issue in the conditions of the Slovak Republic and within this problem, we analyzed the development of the quality of life parameters for each self-governing region of Slovakia. We calculated a Quality of Life Index for the regions of Slovakia using selected indicators. We compared the quality of life in the regions of Slovakia and selected parameters suitable for calculating the overall index together with the methodology of the index’s creation. We found that there are statistically significant differences between regions, in terms of economic, social and environmental factors. The assessment of the quality of life in the regions of Slovakia, as well as the assessment of the quality of life also on the level of Slovakia, even internationally, is an important aspect affecting the further development of society and the existence of humanity itself.

scholarly journals Identification of Isoform-Selective Ligands for the Middle Domain of Heat Shock Protein 90 (Hsp90)

2019 ◽  
Vol 20 (21) ◽  
pp. 5333 ◽  
Author(s):  
Oi Wei Mak ◽  
Raina Chand ◽  
Jóhannes Reynisson ◽  
Ivanhoe K. H. Leung
Keyword(s):  
Heat Shock ◽  
Heat Shock Protein ◽  
Molecular Chaperone ◽  
Heat Shock Protein 90 ◽  
Binding Studies ◽  
Hsp90 Inhibitors ◽  
Middle Domain ◽  
Selective Ligands ◽  
Further Development ◽  
A Current

The molecular chaperone heat shock protein 90 (Hsp90) is a current inhibition target for the treatment of diseases, including cancer. In humans, there are two major cytosolic isoforms of Hsp90 (Hsp90α and Hsp90β). Hsp90α is inducible and Hsp90β is constitutively expressed. Most Hsp90 inhibitors are pan-inhibitors that target both cytosolic isoforms of Hsp90. The development of isoform-selective inhibitors of Hsp90 may enable better clinical outcomes. Herein, by using virtual screening and binding studies, we report our work in the identification and characterisation of novel isoform-selective ligands for the middle domain of Hsp90β. Our results pave the way for further development of isoform-selective Hsp90 inhibitors.

scholarly journals XX. A dynamical theory of the electric and luminiferous medium.─Part II. Theory of electrons

1895 ◽  
Vol 186 ◽  
pp. 695-743 ◽  
Keyword(s):  
Dynamical Theory ◽  
Essential Elements ◽  
Permanent Strain ◽  
Direct Question ◽  
Optical Phenomena ◽  
Mutual Relations ◽  
Electrodynamic Forces ◽  
Further Development ◽  
Concrete Model ◽  
A Current

1. In a previous paper the concrete representation of electrical and optical phenomena by means of a rotationally elastic fluid æther has been discussed. In an Appendix it has been shown that whenever there is direct question of interaction between the molecules of matter and the æther, whether it be in the phenomena of magnetism or in the optical phenomena of dispersion and moving material media, the consideration of groups of electrons or permanent strain-centres in the æther, which form a part of, or possibly the whole of, the constitution of the atoms of matter, suffices to lead to a correlation of the various modes of activity; while this scheme seems to be free from the chief difficulties which have pressed on other methods of representation. The present paper is chiefly concerned with the further development of the molecular aspect of this theory. As a preliminary, it is maintained that a dynamical theory of electric currents, based on the ordinary conception of a current-element, must lead to expressions for the electrodynamic forces which are at variance with the facts. On the other hand, a theory which considers moving electrons to be the essential elements of the true currents in material media, gives a definite account of the genesis and the mutual relations of both types of forcive, the electromotive and the ponderomotive, and gives formulæ for them, which correspond in the main with those originally deduced by Maxwell from consideration of the properties of his concrete model of the electric field, though they are not substantiated by his later abstract theory based on current-elements. That theory is held to be defective, in the first place on account of the discrepancy with experiment above mentioned, and in the second place, because it is not competent to describe the mode of genesis of a conduction current by electrical separation produced in the element of volume of the conductor under the influence of the field of force; it is thus an incomplete formulation of the phenomena.

Managing through Measurement or Meaning? Lessons from Experience with New Zealand’s Public Sector Performance Management Systems

2002 ◽  
Vol 68 (4) ◽  
pp. 619-628 ◽  
Author(s):  
Richard Norman
Keyword(s):  
Public Sector ◽  
Performance Management ◽  
Public Management ◽  
Performance Management Systems ◽  
Starting Point ◽  
Performance System ◽  
Sector Performance ◽  
Managing For Results ◽  
Further Development ◽  
A Current

Comprehensive adoption of systems for managing for results as an alternative to procedure-based bureaucracy has earned the New Zealand public sector a reputation as the ‘world’s most advanced performance system’ (Kettl, 2000: 7). Research with a cross-section of users of this system, now nearly 15 years old, reveals a variety of responses. True Believers support a current focus on measurement and think that more effort should be put into creating clearer, more observable measures that emphasise outcomes. Pragmatic Sceptics see reported measures as part of a new game of public management and at best a starting point for asking about the substance behind the form. Active Doubters believe that too much emphasis on measurement gets in the way of the ‘real work’ of developing relationship-based work in a political environment. Issues of meaning are seen to be more important than measurement for the further development of the system.

scholarly journals Application of a Group Decision Support System in the Reform of Study Programmes

2021 ◽  
Vol 15 ◽  
pp. 93-98
Author(s):  
Andrej Škraba ◽  
Alenka Baggia ◽  
Blaž Rodič
Keyword(s):  
Decision Support ◽  
Decision Support System ◽  
Support System ◽  
Group Decision ◽  
Group Decision Support ◽  
Group Decision Support System ◽  
Process Dynamics ◽  
Postgraduate Study ◽  
Decision Support Process ◽  
Further Development

This paper presents the process and impact of the application of a group decision support system (GDSS) in the reform of post-Bologna graduate and postgraduate study programmes in two higher education institutions in Slovenia. Four experiments with four groups including both students and staff were performed. We have used the GDSS tool TeamWorks to organize, moderate and document meetings intended to develop possible answers to the question "How can we improve the content and execution of the study programmes?" The obtained results are to be used in the design of new study courses. Analysis of the idea gathering process dynamics represents important information for researchers in the field of group decision-making process dynamics. In addition to the experimental work the structure of a group decision support process is described and guidelines for the further development of tools and methodologies are presented.

scholarly journals Revised Reporting (Issuing Addenda and Amendments) in Pathology

2020 ◽  
Author(s):  
Amy Spiczka ◽  
Liz Waibel ◽  
Edna Garcia ◽  
Iman Kundu ◽  
Melissa Kelly ◽  
...  
Keyword(s):  
Patient Safety ◽  
Best Practices ◽  
National Sample ◽  
Cross Sectional ◽  
Qualitative And Quantitative ◽  
Current State ◽  
Quantitative Results ◽  
Cross Sectional Design ◽  
Further Development ◽  
A Current

Abstract Objectives The purpose of this study was to align the current experiences and best practices in revised reporting (issuing of addenda and amendments) in pathology. Pathology specialties explored in the survey include anatomic pathology, surgical pathology, cytopathology, and hematopathology. Methods The study used a cross-sectional design in which an online revised reporting survey was deployed to a large national sample represented by pathologists, pathology residents, pathology fellows, pathology managers, and laboratory directors. Results Qualitative and quantitative results from this survey highlight significant variation in standards for creating, issuing, and tracking quality indicators related to addenda and amendments. The most notable findings were a lack of standardization and the potential for widespread adoption of revised reporting best practices within and between pathology services. Conclusions Survey insight provides the potential for improving patient safety outcomes, engaging with consumers of our reports, providing a current state view of revised reporting, and assessing the attitudes of pathologists and laboratory professionals on how their individual approaches and team-based workflows achieve revised reports. The data generated from this survey will provide patient safety opportunities associated with accurate pathology reporting and will encourage further development of optimal pathology revised reporting guidelines.

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