scholarly journals Fundamental Analysis of the Usability of an Angle-Resolved Scattered Light Sensor for Monitoring Vibratory Finishing Processes Based on Ray Tracing Simulations

2017 ◽  
Vol 869 ◽  
pp. 115-127 ◽  
Author(s):  
François M. Torner ◽  
Jayanti Das ◽  
Gerhard Stelzer ◽  
Barbara Linke ◽  
Jörg Seewig
Keyword(s):  
Ray Tracing ◽  
Scattered Light ◽  
Sustainable Manufacturing ◽  
Vibratory Finishing ◽  
Measuring Device ◽  
Light Sensor ◽  
Measurement Principle ◽  
Finishing Processes ◽  
The University ◽  
High Degree

The angle-resolved scattered light sensor OS500 (made by Optosurf in Ettlingen, Germany) is an optical measuring device that is becoming more and more frequently used inindustrial applications and for the characterization of surfaces in general as well as for measuringroughness and shape. The angle-resolved measurement principle allows the statistical distributionof the gradients of a surface, resulting from the reflectance of the light at the flank angles of theareas examined, to be measured and consequently enables the geometric surface texture to beevaluated. Thus the topography of surfaces is not measured; instead the gradients are evaluated.Since the scattered light sensor measures angles and not distances, the sensor is immune to out-ofplanevibrations in the direction of measurement. Another distinct characteristic of the scattered light sensor is the high degree of sensor dynamics, which when combined with the statisticalanalysis of the surface angles, allows even the finest changes in the surface structure to be detected. Accordingly, it makes sense to use the sensor to monitor processes in which the surfaces and their structures change only slightly during the manufacturing process. One such process is so-called vibratory finishing. This process and several other manufacturing processes geared towards sustainable manufacturing methods are being examined by the “Department of Mechanical and Aerospace Engineering” at the University of California, Davis (CA, USA). On the basis of a ray tracing model, simulations calculations, meaning only virtual measurements, will demonstrate the suitability of the sensor for monitoring manufacturing.

Description and Evaluation of a Simplified Model to Simulate the Optical Behavior of an Angle-Resolved Scattered Light Sensor

2017 ◽  
Vol 17 (2) ◽  
Author(s):  
François M. Torner ◽  
Gerhard Stelzer ◽  
Lukas Anslinger ◽  
Jörg Seewig
Keyword(s):  
Ray Tracing ◽  
Optical Sensors ◽  
Scattered Light ◽  
Computation Time ◽  
Industrial Applications ◽  
Measurement Technology ◽  
Mathematical Methods ◽  
Light Sensor ◽  
Measurement Results ◽  
The One

Scattered light sensors are optical sensors commonly used in industrial applications. They are particularly well suited to characterizing surface roughness. In contrast to most geometric measuring devices, a scattered light sensor measures reflection angles of surfaces according to the principle of the so-called mirror facet model. Surfaces can be evaluated based on the statistical distribution of the surface angles, meaning the gradients. To better understand how the sensor behaves, it is helpful to create a virtual model. Ray-tracing methods are just as conceivable as purely mathematical methods based on convolution. The mathematical description is especially interesting because it promotes fundamental comprehension of angle-resolved scattered light measurement technology and requires significantly less computation time than ray-tracing algorithms. Simplified and idealized assumptions are accepted. To reduce the effort required to simulate the sensor, an attempt was made to implement an idealized mathematical model using Matlab® to be able to quickly generate information on scattered light distribution without excessive effort. Studies were conducted to determine the extent to which the results of modeling correspond to the transfer characteristics of a virtual Zemax sensor, on the one hand, and with the measurement results of the actual scattered light sensor, on the other hand.

Preliminary Study on In Situ Realtime Quantitation of Target Bacteria on the Principle of Flow Cytometry

2017 ◽  
Vol 262 ◽  
pp. 224-227
Author(s):  
Gen Murakami ◽  
Yuichi Sugai ◽  
Kyuro Sasaki
Keyword(s):  
Flow Cytometry ◽  
Bacterial Culture ◽  
Scattered Light ◽  
Bacterial Suspension ◽  
Culture Solution ◽  
Bacterial Cells ◽  
Monitoring Wells ◽  
Measurement Principle ◽  
Preliminary Study

In-situ realtime method that can monitor the target bacteria should be used to determine the real situation of the bacteria in deep parts of heaps in heap bioleaching plants. This study suggest to apply flow cytometry technology to in-situ realtime monitoring of target bacteria. Flow cytometry is a method that can rapidly quantify the bacterial cells in bacterial suspension based on the detection of lights that are emitted from bacterial cells. In this study, we estimated the possibility of the application of flow cytometry to the selective detection of target bacteria. The bacterial culture solution that had been diluted by water including other bacteria was provided for fluorescence spectral analysis and scattered light analysis that were functions of flow cytometry. Our target bacteria could be selectively detected by those analyses in this study, therefore, it was shown that the flow cytometry could be useful for detecting target bacteria selectively. Because the measurement principle of flow cytometry is quite simple, it can be expected to be installed into deep heaps through the monitoring wells and determine the dominance of target bacteria in-situ and realtime in the future.

ON METHODOLOGICAL APPROACHES TO TRAINING FUTURE TEACHERS OF KAZAKHSTAN FOR UPBRINGING WORK

2021 ◽  
Vol 70 (2) ◽  
pp. 14-22
Author(s):  
Zh. KolumbayevaSh. ◽  
Keyword(s):  
Professional Training ◽  
Large Scale ◽  
Educational Process ◽  
Educational Organizations ◽  
Spiritual Renewal ◽  
Future Teachers ◽  
Leading Role ◽  
Public Consciousness ◽  
The University ◽  
High Degree

Globalization, informatization, digitalization, led to large-scale changes that have problematized the modern process of upbringing. The modern practice of upbringing in Kazakhstan is aimed at solving the problem of forming an intellectual nation. The key figure in the upbringing process is the teacher. The modernization of public consciousness taking place in Kazakhstan, the renewal of both the content of education and the system of upbringing require understanding not only the content, but also the methodology of the professional training of teachers for the upbringing of children, for the organization of the upbringing system in educational organizations. We believe that the analysis of traditional and clarification of modern methodological foundations of professional training of future teachers of Kazakhstan for upbringing work will give us the opportunity to develop a strategy for training future teachers in the conditions of spiritual renewal of Kazakhstan's society. The article reveals the experience of Abai KazNPU. As a result of the conducted research, we came to the conclusion that the process of training a teacher in Kazakhstan, who has a high degree of ethnic, cultural, and religious diversity, requires strengthening the upbringing and socializing components of the educational process of the university. The strategy of professional training of a modern teacher should be a polyparadigmatic concept with the leading role of ideas of personality-oriented, competence paradigm.

Kontaktkräfte beim ungeführten Vibrationsgleitschleifen*/Contact forces in unguided vibratory finishing

2015 ◽  
Vol 105 (06) ◽  
pp. 377-383
Author(s):  
F. Klocke ◽  
R. Brocker ◽  
F. Vits ◽  
P. Mattfeld
Keyword(s):  
Measurement System ◽  
Electrical Power ◽  
Force Sensor ◽  
Contact Forces ◽  
Work Piece ◽  
Data Logging ◽  
Vibratory Finishing ◽  
Revolution Speed ◽  
Measurement Results ◽  
Finishing Processes

Beim Vibrationsgleitschleifen wird der Werkstoffabtrag maßgeblich durch die vorherrschenden Kontaktkräfte zwischen dem Werkstück und den Schleifkörpern bestimmt. Dieser Fachartikel stellt ein Messsystem vor, mit dem die messtechnische Erfassung der Kontaktkräfte beim ungeführten Vibrationsgleitschleifen möglich ist. Ein Alleinstellungsmerkmal ist dabei die vollständig kabellose Ausführung des Messsystems. Somit wurden die Messergebnisse nicht durch Kabel beeinflusst, die üblicherweise für die Energieversorgung und Datenübertragung notwendig sind. Mithilfe dieses Messsystems wurde der Einfluss folgender Prozesseingangsgrößen systematisch untersucht: Schleifkörpergröße, Unwuchtmotordrehzahl, Versatzwinkel der Unwuchtgewichte sowie die Masse des unteren und oberen Unwuchtgewichts auf die Kontaktkräfte.   In vibratory finishing the material removal is influenced by the contact forces between work piece and media. In this paper a measurement system is presented which is able to measure contact forces between work piece and media in unguided vibratory finishing. The unique feature of the measurement system is its completely wireless construction so that the measurement results are not influenced by wires of the force sensor system including the electrical power supply and the data logging. By means of this measurement system, contact forces can be measured in unguided vibratory finishing processes for the first time. Furthermore, the influence of media size and adjustment of the unbalance motor like revolution speed, phase angle and mass distribution between the upper and the lower eccentric weight on the contact forces was investigated.

scholarly journals Conceptual provisions of information systematization to analyze the financial sustainability of the university

2021 ◽  
Vol 22 (6) ◽  
pp. 711-724
Author(s):  
Artem V. KRIVOSHEEV
Keyword(s):  
Public Sector ◽  
Economic Analysis ◽  
Financial Reporting ◽  
Financial Stability ◽  
Objective Assessment ◽  
Information Support ◽  
Financial Sustainability ◽  
Comparison Results ◽  
The University ◽  
High Degree

Subject. This article explores the need of public sector organizations, and universities in particular, to classify the source data to conduct a reliable and trustworthy analysis of their financial stability. Objectives. The article aims to develop information support for a comprehensive economic analysis of the financial stability of the university by determining the sources of data used to analyze its financial stability. Methods. For the study, I used the methods of analysis, synthesis, and comparison. Results. Based on the study of accounting (financial) reporting indicators, the article proposes to determine three levels of data systematization, i.e. managerial, departmental, and public ones. The article substantiates proposals to clarify the provisions of the Instructions on the preparation, presentation of the annual, quarterly accounting of State (municipal) budgetary and autonomous institutions for economic analysis of the financial stability of public sector institutions. Conclusions. The current state of the methods used to assess financial stability makes it difficult to widely disseminate and implement them in the analytical activities of public sector institutions, including universities. Practical application of the original developments by grouping data sources to analyze the financial stability of the university, as well as the division of these groups into levels will help provide the most objective assessment, which will have a high degree of confidence in the assessment of the financial sustainability of budgetary and autonomous institutions of higher education.

scholarly journals THE ORGANIZATIONAL COMMITMENT AS PERCEIVED BY THE STAFF MEMBERS OF THE FACULTY OF EDUCATION, UNIVERSITY OF KHARTOUM

2021 ◽  
Vol 5 (2) ◽  
pp. 62-74
Author(s):  
Saifaldin Dldom
Keyword(s):  
Organizational Commitment ◽  
Academic Rank ◽  
Survey Questionnaire ◽  
Normative Commitment ◽  
Staff Members ◽  
Significant Difference ◽  
Research Questions ◽  
Faculty Of Education ◽  
The University ◽  
High Degree

Organizational commitment is considered an essential concept for ensuring work and staff motivation in a higher education setting. Therefore, this study aimed to assess the staffs’ degree of organizational commitment to the Faculty of Education, University of Khartoum. To investigate research questions, a survey questionnaire was conducted. Among 239 respondents, 106 staff members were surveyed (44.00%). The results indicated that the degree of staff affective, continuance, and normative commitment in the Faculty of Education, University of Khartoum, was high. This study also confirmed that the aggregate degree of organizational commitment among staff members in the Faculty of Education, University of Khartoum, was high. The study revealed no statistically significant difference in the degree of organizational commitment due to gender and academic rank variables. The study also found a statistically significant difference in affective and normative commitment in the degree of organizational commitment related to years of service. The study recommended improving the worldly position of the staff member to maintain a high degree of responsibility at the University of Khartoum. 

scholarly journals Readiness for Training Disabled Students in Academic Staff of Universities

2018 ◽  
Vol 23 (2) ◽  
pp. 68-76 ◽  
Author(s):  
N.Y. Sorokin ◽  
T.G. Lukovenko
Keyword(s):  
Students With Disabilities ◽  
Inclusive Education ◽  
Academic Staff ◽  
Educational Institutions ◽  
Teaching Staff ◽  
Persons With Disabilities ◽  
Professional Self ◽  
The University ◽  
High Degree ◽  
Special Competence

The readiness of the teaching staff of higher educational institutions for teaching and psychological and pedagogical support of students with disabilities is being considered. We emphasize that the personnel of the educational organization need special competence to work with persons with disabilities of various nosological groups. The issues of creating an accessible environment in the university were studied, the readiness of teachers to apply special educational technologies in the training of students with disabilities, to develop teaching and methodological materials; the ability to establish pedagogically appropriate relationships with students, and provide psychological and pedagogical support in matters of personal and professional self-determination. The results show a high degree of importance of special professional competencies for inclusive education. But, at the same time, teachers assess their own level of preparedness with students with disabilities as insufficient, which allowed to determine the main areas of work.

scholarly journals Unges dialektbrug i bygden Sandur på Færøerne

2021 ◽  
Vol 11 (2) ◽  
pp. 173-187
Author(s):  
Jógvan í Lon Jacobsen
Keyword(s):  
Young Generation ◽  
Faroe Islands ◽  
State Of Health ◽  
Future Scenario ◽  
Person Plural ◽  
Stability And Change ◽  
Before And After ◽  
Underwater Tunnel ◽  
The University ◽  
High Degree

In this article, dialect changes and variation among young schoolchildren in the island of Sandoy in the Faroe Islands are discussed. The fieldwork was made by a group of students at the University of the Faroe Islands in November 2019 under the guidance of this article’s author. The informants are two groups of 10 and 15 year old schoolchildren. By examining the young generation, we can get information about the ‘state of health’ of the dialect. Here three dialectal variables are examined: (i) The variation of definite and indefinite form of words for family members, for instance the dialectal form mamman ‘the mother’ and the Central Faroese form mamma ‘mother’; (ii) Personal and possessive pronouns in 1st and 2nd person plural in oblique case, for instance the dialect form [o:gʊn] ‘us’ and the Central Faroese form [ɔʰk:ʊn] ‘us’; (iii) The pronunciation of short ó with the dialectal variant [ɔ] and the Central Faroese form [œ], for instance [fɔlk] resp. [fœlk] ‘people’. The first variable shows clearly a tendency towards dialect change in the young generation: the indefinite forms are much more frequent than the dialect counterpart. The use of the pronouns shows a relatively high degree of variation: the dialect forms are more frequently used by the 10 than the 15 year old pupils. The pronunciation of short ó shows variation to a large extent. Here we see the same pattern as we saw for variable 2: the youngest pupils are more likely to use the dialect¬al form [ɔ] than the older ones. On the other hand, variation is much more common in the group of 15 year old pupils. This study shows both stability and change in the dialect of children in Sandoy: Stability in use of the dialectal forms of the personal and possessive pro¬nouns, and variation and change in the two other variables. In a couple of years an underwater tunnel will connect the island of Sandoy with the central part of the islands. In a future scenario this dialect study opens the possibility for comparative studies of the dialect of Sandoy before and after the opening of the tunnel.

scholarly journals СТРАТЕГИЯ 3WIN УСТОЙЧИВОЙ КООПЕРАЦИИ ИТ-ИНДУСТРИИ И УНИВЕРСИТЕТОВ: R&D СТАРТ-АП ШКОЛЫ

2018 ◽  
pp. 71-76
Author(s):  
Михаил Викторович Лобачев ◽  
Светлана Григорьевна Антощук ◽  
Вячеслав Сергеевич Харченко
Keyword(s):  
Interaction Model ◽  
Student Body ◽  
The Road ◽  
Student Teams ◽  
Start Up ◽  
Degree Of Stability ◽  
Definition Of ◽  
The University ◽  
Model C ◽  
High Degree

A 3Win strategy for establishing a sustainable model of collaboration between the industry and universities is developed. Primary objectives of the work are outlined and are focused on the establishment of a model of sustainable collaboration between the industry, academic and research societies and student teams. This allows us to resolve the issue of preparing well qualified IT specialists in the necessary fields in collaboration with foreign partners and teams. This also presents the opportunity of development and research, targeted at the end consumer, by creating working prototypes or products. The sustainability of such a collaboration model supplements and is maintained by the long-term integration of mutual interests of the parties participating in the process. The analysis of the viability of this model is carried out on the basis of operation of R&D Start-up School. The definition of the 3Win strategy is established, as an interaction model, based on which each of the participating parties (the university, the company and the student body) receives their own personal benefits and achieves their own goals. In addition, this is a synergic model – where the cooperation of the participants results in a much more effective outcome, than individual efforts of each of the participants separately. The model, which is described as the 3Win strategy, in a way can be classified as a synthetic model, that incorporates the benefits of a number of other models developed previously. A1 – a department within the university as an incubator for developers, A2 – a department within the university as a center for certification support, Model B – a department within the university acting as a center for collaborative research and development and finally Model C – a department within the university as a business incubator. Simultaneously, this is a new class within the models of higher calibre, due to the fact that it facilitates a high degree of stability for the collaboration. The implementation of the model within the scope of international multi-university collaboration is described, along with its benefits. Examples of interaction between various components of the models based on existing cases are provided and the approaches for the 3Win strategy between the industry, universities and student body are described. The road-maps for further development of the aforementioned approaches are established

scholarly journals University performace through Multiple Factor Analysis

2019 ◽  
Author(s):  
Delimiro Alberto Visbal Cadavid ◽  
Mónica Martínez-Gómez ◽  
Rolando Escorcia-Caballero
Keyword(s):  
Higher Education ◽  
Factor Analysis ◽  
Higher Education Institutions ◽  
Public Higher Education ◽  
Multiple Factor Analysis ◽  
High Level ◽  
The University ◽  
High Degree ◽  
Multiple Factor ◽  
Year 2013

This work applies the Multiple Factor Analysis (MFA) as an exploratory methodology to analize the indicators of the education´s management that belong to 32 Colombian public Higher Education Institutions (HEIs) along the year 2013. The product of this work indicates that the majority of HEIs have similar structures, being different and better scored the following: La Universidad Nacional (UNAL), Antioquia (UDEA), Nacional Abierta y a Distancia (UNAD), Pamplona y del Valle. Also the UDEA has a high development in extension, formation, capacity and research which is considered one of the best HEIS in the country. The university of Valle has a high degree of welfare, formation and extension, besides moderate capacities on research in comparission with the UDEA wich is superior to the rest of the HEIs. Pamplona has too a high level of formation, extension and moderate weflare, research and capacity in relation to the UNAD. It worth to mention that UNAL is the best located on extension. However, it is surpassed by other University (UDEA) because has a better development in some variables associated to research and extension. To finish, there are other HEIs with too many weaknesses on the indicators of the education´s management wich are UFPS Ocaña, Sucre and Pacifico. These universities show certain problems of research, extension and capacity, but fundamentally strong shortcomings in formation and welfare.

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