scholarly journals Research of the Influence of Production Technologies on the Positioning Accuracy of a Robotic Arm for Low Handling Weights

2021 ◽  
Author(s):  
Peter Michalik ◽  
Vieroslav Molnár ◽  
Gabriel Fedorko ◽  
Beáta Stehlíková ◽  
Peter Tirpak ◽  
...  
Keyword(s):  
Robotic Arm ◽  
Contact Method ◽  
Contactless Method ◽  
Positioning Accuracy ◽  
Maximum Workload ◽  
Operating Load ◽  
Production Technologies ◽  
Measuring Machine ◽  
The Subject ◽  
The Individual

Abstract The subject of the paper is the research of production technologies influence on positioning accuracy of a robotic arm. The aim was to find out whether different production technologies (additive and conventional) and the related design differences of the robotic arm affect its operational functionality. In the research, positioning accuracy of a robotic arm formed by 3 partial arms was specifically investigated, while the first partial arm Arm I was manufactured by two different technologies. On the robotic arm, the research was carried out in such a way that the first partial arm, Arm I, was being continuously changed and was available for research purposes in two variants. Each of the Arm I variants was manufactured using a different technology (additive and conventional) while, at the same time, the individual variants also differed in construction. The design differences of both variants were related to the production technology used. The measurement of positioning accuracy was performed with the use of two methods. Specifically, a contact and a non-contact method was used. The contact method was implemented on a 3D-measuring machine RAPID and the second contactless method was performed using an inductive sensor. The maximum working load of the robotic arm was 2 kg, so the positioning accuracy was examined at three degrees of operating load equal to 0; 50 and 100% of the maximum workload.

scholarly journals Research on the Influence of Production Technologies on the Positioning Accuracy of a Robotic Arm for Low-Handling Weights

2021 ◽  
Vol 11 (13) ◽  
pp. 6104
Author(s):  
Peter Michalik ◽  
Vieroslav Molnár ◽  
Gabriel Fedorko ◽  
Beáta Stehlíková ◽  
Peter Tirpák ◽  
...  
Keyword(s):  
Production Technology ◽  
Robotic Arm ◽  
Contact Method ◽  
Contactless Method ◽  
Positioning Accuracy ◽  
Production Technologies ◽  
Measuring Machine ◽  
The Subject ◽  
The Individual ◽  
Related Design

The subject of the paper is the research of production technologies’ influence on positioning accuracy of a robotic arm. The aim was to find out whether different production technologies (additive and conventional) and the related design differences of the robotic arm affect its operational functionality. In the research, positioning accuracy of a robotic arm formed by three partial arms was specifically investigated, while the first partial arm, Arm I, was manufactured by two different technologies. On the robotic arm, the research was carried out in such a way that the first partial arm, Arm I, was being continuously changed and was available for research purposes in two variants. Each of the Arm I variants was manufactured using a different technology (additive and conventional) while, at the same time, the individual variants also differed in construction. The design differences of both variants were related to the production technology used. The measurement of positioning accuracy was performed with the use of two methods. Specifically, a contact and a non-contact method were used. The contact method was implemented on a 3D-measuring machine, RAPID, and the second contactless method was performed using an inductive sensor.

Differential Effects of Competence and Morality on Self-Esteem at the Individual and the Collective Level

2020 ◽  
Vol 51 (3) ◽  
pp. 183-198
Author(s):  
Wiktor Soral ◽  
Mirosław Kofta
Keyword(s):  
Self Esteem ◽  
Differential Effects ◽  
Individual Level ◽  
The Subject ◽  
The Individual

Abstract. The importance of various trait dimensions explaining positive global self-esteem has been the subject of numerous studies. While some have provided support for the importance of agency, others have highlighted the importance of communion. This discrepancy can be explained, if one takes into account that people define and value their self both in individual and in collective terms. Two studies ( N = 367 and N = 263) examined the extent to which competence (an aspect of agency), morality, and sociability (the aspects of communion) promote high self-esteem at the individual and the collective level. In both studies, competence was the strongest predictor of self-esteem at the individual level, whereas morality was the strongest predictor of self-esteem at the collective level.

The Autobiographical Subject and the Death Penalty

2013 ◽  
Vol 35 (2) ◽  
pp. 165-187
Author(s):  
E. S. Burt
Keyword(s):  
Death Penalty ◽  
First Person ◽  
Philosophical Investigation ◽  
The Subject ◽  
Definition Of ◽  
The Individual

Why does writing of the death penalty demand the first-person treatment that it also excludes? The article investigates the role played by the autobiographical subject in Derrida's The Death Penalty, Volume I, where the confessing ‘I’ doubly supplements the philosophical investigation into what Derrida sees as a trend toward the worldwide abolition of the death penalty: first, to bring out the harmonies or discrepancies between the individual subject's beliefs, anxieties, desires and interests with respect to the death penalty and the state's exercise of its sovereignty in applying it; and second, to provide a new definition of the subject as haunted, as one that has been, but is no longer, subject to the death penalty, in the light of the worldwide abolition currently underway.

METHODOLOGY AND TECHNOLOGY RESEARCH OF PERSONALITY SELF-DEVELOPMENT RESOURCES

1970 ◽  
Vol 8 (1) ◽  
pp. 97-103
Author(s):  
Svitlana Kuzikova
Keyword(s):  
Professional Training ◽  
Self Regulation ◽  
Life Strategy ◽  
Psychological Resources ◽  
Vital Activity ◽  
Development Organization ◽  
Self Development ◽  
Individual Consciousness ◽  
The Subject ◽  
The Individual

The author's approach to the empirical study of the peculiarities of self-development of a person has been  considered. The criteria of self-development as a subject activity have been characterized. Its indicators have been  given.  The  psychological  resources  of  personal  self-development  have  been  singled  out:  the  need  for  self- development as its source and determinant; conditions that ensure its success; mechanisms as functional means and  conditions  for  its  implementation.  Their  essence  has  been  revealed.  The  need  for  self-development  has  been  determined by the actualization of the characteristics of self-development (self-activity, vital activity, development of  self-consciousness) and has been occurred when the content structure of the individual consciousness and the  transformation of semantic entities changed. Conditions of self-development has been defined by mature I of  personality, openness, tolerance to the new, the presence of a conscious goal of self-realization and active life  strategy. Reflection, self-regulation and feedback have been considered as mechanisms of self-development. The  methodical approaches and means of studying the peculiarities and factors of the development of the subject of self- development in adolescence in the process of professional training have been offered, and the results of their  integrated empirical research have been highlighted. Particular attention has been paid to the analysis of the level  of actualization of self-development resources among students, discovered with the author's diagnostic method  "DCPSD" (Dispositional Characteristic of Personality of Self-development). It has been proved that psychological  resources as a set of possibilities of development already exist in the psychological reality of a person. It has been  shown that the dominance of the level of self-development resources’ actualization of the individual (and their  combination) can be correlated with the dimensions of the individual psychological space, indicating the individual  peculiarity of the personal self-development organization. It has been noted that, at the same time, actualization,  strengthening and harmonization of all psychological resources of a person self-development, enrichment of its  relations with the environment and other people, and increasing spirituality is necessary for the implementation of  progressive conscious personal self-development. У  статті  розглянуто  авторський  підхід  до  емпіричного  вивчення  особливостей  саморозвитку  особистості. Охарактеризовано критерії саморозвитку як суб’єктної діяльності, наведено його показники.  Виокремлено психологічні ресурси особистісного саморозвитку: потребу в саморозвитку як його джерело і  детермінант; умови, які забезпечують його успішність; механізми як  функціональні засоби і умови його  здійснення.    Розкрито    їх    сутність.    Потреба    в    саморозвитку    визначається    актуалізованістю  характеристик саморозвитку (самоактивність, життєдіяльність, розвиненість самосвідомості) і виникає  при зміні змістової  структури індивідуальної свідомості та трансформації смислових утворень. Умови  саморозвитку  окреслюють  зріле  Я  особистості,  відкритість,  толерантність  до  нового,  наявність  усвідомленої   мети   самоздійснення   та   активної   життєвої   стратегії.   Як   механізми   саморозвитку  розглядаються рефлексія, саморегуляція та зворотній зв'язок. Запропоновано методичні підходи і засоби  вивчення особливостей та чинників становлення суб’єкта саморозвитку в юнацькому віці в процесі фахової  підготовки, висвітлено результати їх комплексного емпіричного дослідження. Особливу увагу приділено  аналізу  рівня  актуалізації  ресурсів  саморозвитку  у  студентів,  виявленого  за  допомогою  авторської  діагностичної методики «ДХСО». Доведено, що психологічні ресурси  як сукупність можливостей розвитку  вже існують у психологічній реальності людини. Показано, що домінування рівня актуалізації ресурсів  саморозвитку особистості ( та їх поєднання) можна співвіднести з вимірами психологічного простору  особистості,   що   свідчить   про  індивідуальну   своєрідність   організації   особистісного  саморозвитку.  Зазначено,  що  в  той  же  час  для  здійснення  прогресивного  усвідомленого  особистісного  саморозвитку  необхідна   актуалізація,   взаємопосилення   і   гармонізація   всіх   психологічних   ресурсів   саморозвитку  особистості, збагачення її зв’язків із навколишнім середовищем та іншими людьми, підвищення духовності.

PHILOSOPHICAL PROPAEDEUTICS IN THE SYSTEM OF PRESCHOOL EDUCATION

2020 ◽  
Vol 22 (11) ◽  
pp. 11-15
Author(s):  
Gan N.Yu. ◽  
Ponomareva L.I. ◽  
Obukhova K.A.
Keyword(s):  
Modern Science ◽  
Preschool Education ◽  
Modern Society ◽  
Social Relevance ◽  
The Social ◽  
Moral Problems ◽  
The Subject ◽  
The One ◽  
The Individual ◽  
And Training

Today, worldview, spiritual and moral problems that have always been reflected in education and upbringing come to the fore in society. In this situation, there is a demand for philosophical categories. One of the priority goals of education in modern conditions is the formation of a reasonable, reflexive person who is able to analyze their actions and the actions of other people. Modern science is characterized by an understanding of the absolute value and significance of childhood in the development of the individual, which implies the need for its multilateral study. In the conditions of democratization of all spheres of life, the child ceases to be a passive object of education and training, and becomes an active carrier of their own meanings of being and the subject of world creation. One of the realities of childhood is philosophizing, so it is extremely timely to address the identification of its place and role in the world of childhood. Children's philosophizing is extremely poorly studied, although the need for its analysis is becoming more obvious. Children's philosophizing is one of the forms of philosophical reflection, which has its own qualitative specificity, on the one hand, and commonality with all other forms of philosophizing, on the other. The social relevance of the proposed research lies in the fact that children's philosophizing can be considered as an intellectual indicator of a child's socialization, since the process of reflection involves the adoption and development of culture. Modern society, in contrast to the traditional one, is ready to "accept" a philosophizing child, which means that it is necessary to determine the main characteristics and conditions of children's philosophizing.

FUNCTIONING OF THE MENTAL DEFENSES IN THE CONDUCT OF INTERROGATION WITHIN THE CRIMINAL PROCESS

2018 ◽  
Vol 28 (6) ◽  
pp. 2161-2165
Author(s):  
Hristo Ivanov Popnikolov
Keyword(s):  
Objective Assessment ◽  
Critical Conditions ◽  
Criminal Process ◽  
External Influences ◽  
Administration Of Justice ◽  
Individual Protection ◽  
The Subject ◽  
The Individual ◽  
The Cost ◽  
Subjective Side

From the subject presented in the report it is evident that the pre-trial and the court bodies may, to some extent, be influenced both by the person of the accused and by his competence to participate in the criminal process. In this regard as an expert, the psychologist can offer invaluable assistance. Each expertise would assist all actors involved in the administration of justice on their objective assessment of the offenders, the understanding of their individual protection and the inherent self-justification during procedural actions. The involvement of psychologists in the criminal process is key to establishing the truth in the investigation, because every crime as an act has a subjective side, expressed in the psychic attitude of the perpetrator to the committed act. Establishing these psychological motives is a key point in the criminal process with a view to establishing the truth.Psychological protection stabilizes the personality in the critical conditions of counteraction, related to the elimination of the experiences of tension, anxiety, stress and frustration, leading to maximum mobilization of its resources and at the same time to their overpayment. Thus, the individual who is the subject of the process action is protected against the adverse external influences, but at the cost of a lot of effort and enormous loss of nervous-mental energy, which increases his own vulnerability instead of contributing to its reduction. The appearance and functioning of psychological protection can be significantly impeded by the interaction of the investigator with the accused. Even more complicated is the situation when it breaks the communication contact that may arise in the psychological alienation and self-isolation of the accused due to the desire to protect himself.Protective psychological dominance is a real psychic activity that investigators, investigators, investigators and judges need to take into account in order to effectively deal with their task and to overcome the resistance of the investigated persons and in a time to prove in a lawful and moral way their guilt and participation in the commitment of the crimes.

scholarly journals Robotic-arm assisted total knee arthroplasty is associated with improved accuracy and patient reported outcomes: a systematic review and meta-analysis

2021 ◽  
Author(s):  
Junren Zhang ◽  
Wofhatwa Solomon Ndou ◽  
Nathan Ng ◽  
Paul Gaston ◽  
Philip M. Simpson ◽  
...  
Keyword(s):  
Learning Curve ◽  
Functional Outcomes ◽  
Patient Reported Outcomes ◽  
Meta Analysis ◽  
Robotic Arm ◽  
Component Position ◽  
Positioning Accuracy ◽  
Patient Reported ◽  
Total Knee ◽  
Improved Accuracy

AbstractThis systematic review and meta-analysis were conducted to compare the accuracy of component positioning, alignment and balancing techniques employed, patient-reported outcomes, and complications of robotic-arm assisted total knee arthroplasty (RATKA) with manual TKA (mTKA) and the associated learning curve. Searches of PubMed, Medline and Google Scholar were performed in October 2020 using PRISMA guidelines. Search terms included “robotic”, “knee” and “arthroplasty”. The criteria for inclusion were published clinical research articles reporting the learning curve for RATKA and those comparing the component position accuracy, alignment and balancing techniques, functional outcomes, or complications with mTKA. There were 198 articles identified, following full text screening, 16 studies satisfied the inclusion criteria and reported the learning curve of rTKA (n=5), component positioning accuracy (n=6), alignment and balancing techniques (n=7), functional outcomes (n=7), or complications (n=5). Two studies reported the learning curve using CUSUM analysis to establish an inflexion point for proficiency which ranged from 7 to 11 cases and there was no learning curve for component positioning accuracy. The meta-analysis showed a significantly lower difference between planned component position and implanted component position, and the spread was narrower for RATKA compared with the mTKA group (Femur coronal: mean 1.31, 95% confidence interval (CI) 1.08–1.55, p<0.00001; Tibia coronal: mean 1.56, 95% CI 1.32–1.81, p<0.00001). Three studies reported using different alignment and balancing techniques between mTKA and RATKA, two studies used the same for both group and two studies did not state the methods used in their RATKA groups. RATKA resulted in better Knee Society Score compared to mTKA in the short-to-mid-term follow up (95%CI [− 1.23,  − 0.51], p=0.004). There was no difference in arthrofibrosis, superficial and deep infection, wound dehiscence, or overall complication rates. RATKA demonstrated improved accuracy of component positioning and patient-reported outcomes. The learning curve of RATKA for operating time was between 7 and 11 cases. Future well-powered studies on RATKAs should report on the knee alignment and balancing techniques utilised to enable better comparisons on which techniques maximise patient outcomes.Level of evidence III.

Photopoetics: Sisyphus Outdone, the Apostrophal Subject and the Elusive Image

2020 ◽  
Vol 4 (1) ◽  
pp. 84-95
Author(s):  
Esther Sánchez-Pardo
Keyword(s):  
Catastrophe Theory ◽  
Albert Camus ◽  
Current Image ◽  
Difficult Condition ◽  
The Subject ◽  
The Individual

AbstractIn Sisyphus Outdone (2012), Nathanaël’s particular tribute to Albert Camus’ The Myth of Sisyphus (1942), the reader faces a challenging hybrid text in which the verbal and visual dimensions intermingle to produce an idiosyncratic type of narrative. Fragmentary, elliptical, a web of quotations, dictums, and meditations on the difficult condition of the individual in the current image-saturated scenario of the first decades of the 21st century, the text manages to propose a rigorous reflection upon crucial aspects of representation from History and temporality, to the Subject now, photography, catastrophe theory, architecture, failure and translation, among the most salient. Sisyphus, I suggest, exhibits a strategic photopoetics which operates as a self-reflective mechanism contributing to the persistence of an impermanent liminal subject and to the (re)production of textuality and the proliferation of voices against silence.

scholarly journals Theorizing Teacher Responsibility in an Age of Neoliberal Accountability

2019 ◽  
Vol 1 (1) ◽  
pp. 179-195 ◽  
Author(s):  
Tina Besley
Keyword(s):  
Homo Economicus ◽  
Teacher Responsibility ◽  
Keynesian Economics ◽  
The Great Depression ◽  
Market Rationality ◽  
The Subject ◽  
Neoliberal Policies ◽  
Set Up ◽  
The Individual ◽  
The Welfare State

This article explores concepts of teacher responsibility, accountability, being in loco parentis, and responsibilization as many advanced capitalist societies have dropped policies and practices that were set up in the mid 19th century after the Great Depression in the welfare state under Keynesian economics. Since the early 1980s most of these states have adopted neoliberal policies and market rationality for all aspects of social policy including education. Under neoliberalism, the subject theorised by Homo economicus, is one that is theorised as a rational autonomous individual, with its responsibilized behavior underpinning much of how not only teachers but students now are compleed to behace and perform. These have resulted in major shifts in attitudes to professionalism of teachers, in responsibilising individuals and so have impacted on subjectivity as the state has pulled back from all manner of social provision and has responsibilized the individual to be a consumer-citizen, a prudential and entrepreneurial self even in terms of education. The upshot is increasing use of audits, checklists and accountability regimes for teachers who are becoming increasingly a de-professionalised in a low-trust managerialist environment with students as consumers.

scholarly journals IV. On the nature of the streamers in the electric spark

1909 ◽  
Vol 209 (441-458) ◽  
pp. 71-87 ◽  
Keyword(s):  
Incident Light ◽  
Close Relation ◽  
Actual Process ◽  
Metal Vapour ◽  
New Era ◽  
Spark Gap ◽  
In Series ◽  
The Subject ◽  
The Doppler Effect ◽  
The Individual

When the oscillating electric spark is examined in a rapidly rotating mirror, the successive oscillations render themselves evident in the image as a series of lumnious curved streamers which emanate from the poles and extend towards the centre of the spark gap. These streamers were first observed by Feddersen in 1862, but the work of Schuster and Hemsalech in 1900 may be said to have opened up a new era in the subject. These workers threw the image of the spark on the slit of a spectroscope, and photographed the resulting spectrum on a film which was maintained in rapid rotation in a direction at right angles to that of the incident light. In their photographs they found that the air lines extended straight across from pole to pole, but that the metal lines were represented by curved bands drawn out in the centre of the spark gap. There is a close relation between these bands and the streamers seen in the unanalysed inductive spark. Schuster and Hemsalech carried out their experiments with the smallest possible inductance in series with the spark, and thus made the period of the oscillations so small that the drawing out on the film was insufficient to separate the individual oscillations from each other. Thus their curved lines represent a composite structure, consisting of all the streamers due to the successive oscillations superposed on each other. It follows from their results that the light of the streamers in the spark is entirely produced by the glowing of the metallic vapour of the electrodes, and that, while the luminosity of the air is practically instantaneous in its occurrence, that due to the metal vapour occurs in the centre of the spark gap an appreciable time later than near the poles. The actual process which goes on in the spark and gives rise to this delay in the arrival of the metallic vapour at the centre of the gap is not yet thoroughly understood. Schuster and Hemsalech make the natural supposition that it is due to the fact that the metal of the electrode is vaporised and rendered incandescent by the heat of the spark, and that the vapour takes an appreciable time to diffuse from the electrodes to the centre of the gap. The exception which has been taken to this view has arisen in part from the difficulty of observing the Doppler effect on the metallic lines which should be a concomitant of the diffusion of the vapour from the poles, and in part from the extraordinary results which the authors themselves obtained in some metals for the velocity of the diffusion corresponding to the different lines. In the case of bismuth and, in a less degree, of cadmium the different metallic lines could be divided into groups of different curvatures which indicated different velocities of diffusion towards the centre of the gap. As regards the former matter, there does not seem to be involved any real difficulty to the explanation, as Dr. Schuster has himself recently shown. The curious effect of the different curvatures of the lines of the same element has, however, always remained more or less of a difficulty in the way of a complete acceptance of their view. Schuster and Hemsalech themselves refer to the possibility in the case of bismuth that the metal may be a compound, and that the two kinds of molecules give rise to the differently curved lines. Other explanations have been made by different writers, but it cannot be said that any explanation adequately supported by experiment has been forthcoming. In view of this incompleteness in our knowledge of the constitution of the streamers it seemed to me that further observations with a rotating mirror would possibly be of value, and the investigations recorded below succeed, I think, in throwing a clearer light on the nature of the streamers, and on certain other phenomena which are characteristic of the spark.

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