scholarly journals On the Fictional and Real Lost Gravitation Force

2013 ◽  
Vol 4 ◽  
pp. 8-16
Author(s):  
Zdzisław Pluta ◽  
Tadeusz Hryniewicz
Keyword(s):  
Inertia Force ◽  
Critical Approach ◽  
Rigid System ◽  
Scientific Cognition ◽  
Flexible System ◽  
Unstable States ◽  
Gravitation Force ◽  
Force Equilibrium

The paper covers a critical approach to the natural reality study which is the method of scientific cognition. The existent so called d`Alembert’s rule is the link of reality on which the specific attention is focused. The critics is directed to the fictional inertia force covered in the mentioned rule. The necessity for its elimination from the reality description has been presented. Instead, it is proved that a real inertia force occurs. A proper exemplification material has been delivered with two examples of force equilibrium of the system. One of them refers to a rigid system being both under stable and unstable states. The second one covers also these two states but it is referred to a mass-flexible system. Finally, the discussed solution of the problem has been explained on the example of mathematic pendulum and a mass-string system.

An Improved Method for Cutting Force and Surface Error Prediction in Flexible End Milling Systems

1986 ◽  
Vol 108 (4) ◽  
pp. 269-279 ◽  
Author(s):  
J. W. Sutherland ◽  
R. E. DeVor
Keyword(s):  
Cutting Force ◽  
End Milling ◽  
System Model ◽  
Machining Processes ◽  
Force System ◽  
Surface Error ◽  
Rigid System ◽  
Load Model ◽  
Flexible System ◽  
Chip Load

As more emphasis is placed on quality and productivity in manufacturing, it becomes necessary to develop models that more accurately describe the performance of machining processes. An improved model for the prediction of the cutting force system and surface error in end milling has been developed and has been implemented on the computer. This enhanced model takes into account the effect of system deflections on the chip load, and solves for the chip load that balances the cutting forces and the resulting system deflections. Such a model allows for the evaluation of cuts in which deflections significantly effect the chip load. The flexible system model predictions of forces and surface error are compared against both measured and rigid system model-predicted values associated with the machining conditions for experiments performed on the 390 casting aluminum alloy. It is shown that the enhanced chip load model gives predictions of both cutting force signatures and surface error profiles that are significantly better than the rigid system chip load model developed previously. The fact that system deflections temper the effects of runout, and reduce both peak cutting force and maximum surface error is demonstrated and discussed.

A Flexible Ball-End Milling System Model for Cutting Force and Machining Error Prediction

1996 ◽  
Vol 118 (4) ◽  
pp. 461-469 ◽  
Author(s):  
Hsi-Yung Feng ◽  
Chia-Hsiang Menq
Keyword(s):  
Cutting Forces ◽  
Present Model ◽  
End Milling ◽  
System Model ◽  
Rigid System ◽  
Ball End Milling ◽  
Flexible System ◽  
Machining Errors ◽  
Chip Geometry ◽  
Cutting System

This paper presents a flexible system model for the prediction of cutting forces and the resulting machining errors in the ball-end milling process. Unlike the previously developed rigid system model, the present model takes into account the instantaneous and regenerative feedback of cutting system deflections to establish the chip geometry in the cutting force calculation algorithm. The deflection-dependent chip geometry is identified by using an iterative procedure to balance the cutting forces and the associated cutting system deflections. A series of steady state 3D cross-feed ball-end milling cuts were performed to validate the capability of the present model in predicting the cutting forces and the resulting machining errors. It is shown that the flexible system model gives significantly better predictions of the cutting forces than the rigid system model. Good agreement between the predicted and measured machining errors is demonstrated for the simple surfaces generated by horizontal cuts.

Coupled Gas-Liquid-Structure Systems: Part 2—Applications

1987 ◽  
Vol 54 (4) ◽  
pp. 942-950
Author(s):  
F. M. Joos ◽  
P. W. Huber
Keyword(s):  
Natural Frequencies ◽  
Liquid Structure ◽  
Companion Paper ◽  
Rigid System ◽  
Flexible System ◽  
Liquid Boundary ◽  
Using Data ◽  
Cylindrical Tanks ◽  
Boundary Surfaces ◽  
Made In

In the companion paper, Joos and Huber (1987) have developed an analysis that applies to certain types of systems in which a hydrodynamic transient creates pressure forces dependent on the flexibilities of the liquid boundary surfaces. To test the analysis we performed two pairs of experiments. Each pair involved identical experiments conducted in two geometrically identical cylindrical tanks. One tank was rigid, the other flexible. In the first set of experiments a gas bubble oscillated freely in a container partially filled with liquid. We compared experimentally measured natural frequencies with those predicted theoretically. In the second set of experiments a complex hydrodynamic transient was produced by injecting air into a tank partially filled with liquid. Using data from the rigid system experiments we predict the pressures and wall displacements in the flexible system and compare these predictions with measurements made in the flexible test tank. The inverse problem—predicting the pressures in the rigid tank from data obtained in the flexible tank—is also analyzed using the theoretical tools we have developed, and again predictions are compared with experiment.

‘Flexible’ system makes pet food production easy

1984 ◽  
Vol 63 (8) ◽  
pp. 23
Author(s):  
Stephen Margolis
Keyword(s):  
Food Production ◽  
Pet Food ◽  
Flexible System

Legal framework for improvement of agroecology by cultivating jerusalem artichoke

2020 ◽  
pp. 59-66
Author(s):  
Mykhailo Kosmii ◽  
Vasyl. Kasiianchuk ◽  
Ruslan Zhyrak ◽  
Ivan Krykhovetskyi
Keyword(s):  
Environmental Protection ◽  
Organic Farming ◽  
Alternative Energy ◽  
Building Materials ◽  
Environmental Law ◽  
Jerusalem Artichoke ◽  
Legal Framework ◽  
Legal Regulation ◽  
Practical Application ◽  
Scientific Cognition

The purpose of this paper is to analyze and research the legal mechanisms which make it possible to improve agroecology through the organization of cultivation of Jerusalem artichoke.Methodology. The methodology includes comprehensive analysis and generalization of available scientific, theoretical, practical and applied material and development of relevant conclusions and recommendations. During the research, the following methods of scientific cognition were used: dialectical, terminological, historical and legal, logical and normative, systemic and structural, functional, normative and dogmatic, generalization methods. Results. The process of analysis and research highlighted the possibilities of cultivating Jerusalem artichoke for improving agroecology, namely improving the ecological state of the atmosphere air and soil, preparing them for organic farming. The article contains examples of practical application of tubers of Jerusalem artichoke and herbage for the production of therapeutic and prophylactic products, alternative energy and highly efficient building materials. Scientific novelty. The study found that the authors summarized and systematized the levels of legal regulation in the field of using Jerusalem artichoke for improving agroecology, preparing soil for organic farming, in particular: the inter-sectoral level which covers the interaction of agricultural and environmental law in terms of cultivation and use of Jerusalem artichoke; the level of integrated environmental and legal regulation; level of individual resource (floristic) legal regulation; the level of environmental protection (anthropoprotection) legislation.Practical importance. The results of the study can be used in law-making and environmental protection activities related to issues of cultivating and using the Jerusalem artichoke as a means of improving agroecology.

Blood, Bodies, and Borders

2018 ◽  
Author(s):  
Dale Hudson
Keyword(s):  
Middle East ◽  
Transnational Identity ◽  
Critical Approach ◽  
Radical Revision

This chapter compares two films that reinterpret Bram Stoker’s 1897 novel Dracula and its vampire in different ways. Francis Ford Coppola’s Bram Stoker’s Dracula (1992) parodies a nostalgic and orientalist perspective on debates about the place of the Middle East in the formation of US transnational identity and history, whereas Ana Lily Amirpour’s A Girl Walks Home Alone at Night (2014) moves towards this history’s radical revision. Coppola imagines a “vampire ayatollah” during the first US invasion of Iran’s neighbor Iraq; Amirpour, as a feminist hijabi in the sonic space of Tehrangeles. The filmmakers’ familial trajectories underscore Hollywood’s transnational constitution as linked to US policy. The comparison develops a critical approach for how vampires serve as both object and mode of analysis throughout the book. Stoker’s tropes of blood, bodies, and borders map onto US laws concerning race, immigration, and assimilation.

Reflexiones sobre postmodernidad, anomia y crimen

2019 ◽  
pp. 151-186
Keyword(s):  
Social Control ◽  
Social Exclusion ◽  
Criminological Theory ◽  
Critical Approach ◽  
Social Thinking ◽  
Palabras Clave

Resumen: Este artículo va a indagar en los significados del crimen en los tiempos que corren. Lo que se pretende es partir de la observación del crimen para llegar a reflexionar no sólo sobre las condiciones hodiernas de coexistencia de los sujetos sino especialmente sobre su condición misma de existencia. El crimen será pensado en sus interconexiones con la exclusión social. Se va a trabajar con un enfoque crítico de la posmodernidad, que examina su nivel mucho más elevado y profundo de extracción de riqueza y expropiación de los sujetos, reflexionando así sobre su capacidad de alienarlos incluso de sí mismos. Se discutirá sobre la presencia de anomia en la posmodernidad y su instrumentalización para fines de control social. La teoría criminológica de la anomia de RobertK. Merton será analizada y se le propondrá una ampliación de interpretación. Palabras clave: crimen, exclusión social, anomia, posmodernidad, control social. Thinking about postmodernity, anomie and crime Summary:This article will investigate the meanings of crime at present times. From the observation of crime, will be thought about not only the hodiern conditions of coexistence of the subjects but especially about their condition of existence. Crime will be taken into consideration in its interconnections with social exclusion. It will be worked with a critical approach to postmodernism, which examines its much higher and deeper level of extraction of wealth and expropriation of subjects, with the propose to think about its ability to alienate them even from themselves. The presence of anomie in postmodernity and its instrumentalization for purposes of social control will be discussed. The criminological theory of the anomie of Robert K. Merton will be analyzed and an extension of its interpretation will be proposed. Keywords:crime, social exclusion, anomie, postmodernity, social control.

The Ontological Exclusivity of the I

2017 ◽  
Vol 2017 (1) ◽  
pp. 97-116 ◽  
Author(s):  
Ronny Miron
Keyword(s):  
Critical Approach ◽  
The Real ◽  
Phenomenological Interpretation ◽  
Mode Of Being

The pivotal insight that paved Conrad-Martius’ (1880–1966) (CM) way in elucidating the ontological exclusivity of the I, denoted as “I-adhering being” (Ichhaftes Sein), is that despite its peculiarity and incomparability to any other mode of being, only the ontological foundations of the real being in general might enable a faithful comprehension of the I. The phenomenological interpretation suggested in this article presents CM’s ontological understanding of the I vis-a-vis her philosophy of Being, in particular in regard to three of its general characteristics – existence, intelligibility, and self-adherence (Sichheit/Selbsthaftigkeit) – which provide the critical approach to the ontological study of the I. Finally, the understanding of the ontological exclusivity of the I-adhering being is achieved by means of an explication of the joining together of its typical affinities and discrepancies in regard to Being in general.

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