What Is Left of the Cinematic Apparatus, or Why We Should Retain (and Return to) It

2014 ◽  
Vol 31 (1-2-3) ◽  
pp. 33-44 ◽  
Author(s):  
Thomas Elsaesser
Keyword(s):  
Original Formulation ◽  
Archaeological Approach

In this essay I shall briefly summarize what it was about the original formulation of the cinematic apparatus that seemed crucial; what were subsequently perceived to be its shortcomings; how in my own media-archaeological approach I have tried to extend as well as to relativize/historicise the model of the apparatus/dispositif; and finally, what avenues I see for invigorating the theoretical challenges apparatus theory still poses, now in the context of viewing situations that either pastiche and inflate the original paradigm or completely bypass or ignore it.

Extensions of the Pseudo-Potential Method

2018 ◽  
Author(s):  
Sauro Succi
Keyword(s):  
Potential Method ◽  
Original Model ◽  
Original Formulation ◽  
The Face ◽  
Pseudo Potential

This chapter provides an account of subsequent extensions of the Shan-Chen pseudo-potential method, including more elaborated potentials which extend beyond the first Brillouin cell. These extensions permit us to lift a number of limitations of the original model and considerably expand its scope and range of applications. In Chapter 27, a variety of LB techniques for nonideal fluids have been discussed. As usual, each method comes with its ups and downs, but actual evidence shows that the Shan–Chen (SC) model has enjoyed increasing popularity over the years. Interestingly, such popularity stands in the face of a fair amount of substantial criticism. In this chapter, first the Shan–Chen model is revisited in some more detail along with a discussion of ways out of the above criticism. Subsequently, the extension of the SC technique to the case of multi-range potentials extending beyond the first Brillouin cell is discussed. This extension proves pretty effective in softening many of the weaknesses of the original formulation, thereby considerably expanding its scope and range of applications.

Building Stiffness Estimation by Wave Traveling Times

2014 ◽  
Author(s):  
Jesús Morales-Valdez ◽  
Luis Alvarez-Icaza
Keyword(s):  
Wave Propagation ◽  
Modal Analysis ◽  
Single Layer ◽  
Original Formulation ◽  
Arrival Times ◽  
Identification Methods ◽  
Novel Technique ◽  
Wave Propagation Method ◽  
Local Technique ◽  
Interesting Alternative

A novel technique to estimate stiffness in buildings is presented. In contrast with most of the available work in the literature that resorts to diverse forms of modal analysis, this local technique is based on the propagation of a Ricker pulse through the structure and on measuring the wave arrival times at each story of the building, represented as a single layer in a multiple stratum model. These arrival times are later used to recuperate building stiffness at each story. Wave propagation is based on the Thomson-Haskell method, that allows to generalize the wave propagation method to multi-story buildings without significant changes to the original formulation. The number of calculated parameters is small in comparison with methods based on modal analysis. This technique provides and quick and easy methodology to assess building integrity and is an interesting alternative to verify results obtained by other identification methods. Simulation results for building with heterogeneous characteristics across the stories confirm the feasibility of the proposal.

Degrees of freedom and problems in f(T) gravity

2018 ◽  
Vol 15 (supp01) ◽  
pp. 1850139 ◽  
Author(s):  
Yen Chin Ong
Keyword(s):  
Degrees Of Freedom ◽  
Lorentz Invariance ◽  
Modified Theories Of Gravity ◽  
Recent Effort ◽  
Original Formulation ◽  
Actual Number ◽  
Specific Choice ◽  
Superluminal Propagation ◽  
Theories Of Gravity ◽  
Local Lorentz Invariance

Torsion-based modified theories of gravity, such as [Formula: see text] gravity, are arguably one of the very few “true” modified gravities based on well-defined geometric structures. However, the original formulation explicitly works in a specific choice of frame, which has led to considerable amount of confusion in the literature about these theories breaking local Lorentz invariance. Pathological properties such as superluminal propagation and the lack of well-posedness of Cauchy problem were found to plague [Formula: see text] gravity. Recent effort to “covariantize” [Formula: see text] gravity has, however, renewed interests in this subject. In this proceeding paper, we review and discuss issues concerning the actual number of degrees of freedom in [Formula: see text] gravity, and how this might relate to the aforementioned pathologies.

Advances In The Modeling And Dynamic Simulation of Reeving Systems Using The Arbitrary Lagrangian-Eulerian Modal Method

2021 ◽  
Author(s):  
José L. Escalona ◽  
Narges Mohammadi
Keyword(s):  
Finite Elements ◽  
Axial Force ◽  
Axial Direction ◽  
Rotary Inertia ◽  
Arbitrary Lagrangian Eulerian ◽  
Original Formulation ◽  
Absolute Position ◽  
Axial Forces ◽  
Modal Coordinates ◽  
Modal Method

Abstract This paper presents new advances in the arbitrary Lagrangian-Eulerian modal method (ALEM) recently developed for the systematic simulation of the dynamics of general reeving systems. These advances are related to a more convenient model of the sheaves dynamics and the use of axial deformation modes to account for non-constant axial forces within the finite elements. Regarding the sheaves dynamics, the original formulation uses kinematic constraints to account for the torque transmission at the sheaves by neglecting the rotary inertia. One of the advances described in this paper is the use of the rotation angles of the sheaves as generalized coordinates together with the rope-to-sheave no-slip assumption as linear constraint equations. This modeling option guarantees the exact torque balance the sheave without including any non-linear kinematic constraint. Numerical results show the influence in the system dynamics of the sheave rotary inertia. Regarding the axial forces within the finite elements, the original formulation uses a combination of absolute position coordinates and transverse local modal coordinates to account for the rope absolute position and deformation shape. The axial force, which only depends on the absolute position coordinates, is constant along the element because linear shape functions are assumed to describe the axial displacements. For reeving systems with very long rope spans, as the elevators of high buildings, the constant axial force is inaccurate because the weight of the ropes becomes important and the axial force varies approximately linearly within the rope free span. To account for space-varying axial forces, this paper also introduces modal coordinates in the axial direction. Numerical results show that a set of three modal coordinates in the axial direction is enough to simulate linearly varying axial forces.

Assembly method in GIS INTEGRO and its usage for solving of gravitational inverse problem

2021 ◽  
pp. 36-47
Author(s):  
Sergey Mitsyn ◽  
Egor Bolshakov
Keyword(s):  
Inverse Problem ◽  
A Priori ◽  
Regional Scale ◽  
Original Formulation ◽  
Model Evolution ◽  
Assembly Method ◽  
Practice Methods

Various methods based on growing bodies are lately gaining attention in a context of inverse gravity problem that we call a family of “assembly methods”. A variant of method was adopted for GIS INTEGRO in original formulation that is fit for the problem of multiple bodies incorporated in an environment of varying density, in absolute densities (not density contrasts) that are however have to be a priori specified. Such formulation allowed the implementation of the method that is suitable for territory modeling in the regional scale. To workaround method’s instability a number of changes are proposed that consist of introduction of priority on atomic modifications, modification queue and assessment of model evolution instead of just the final result. The developed software allows processing of large grids (tens of millions of tiling elements) even on 5–8 year old desktops. Based on method approbation experience some insights and practice methods are presented. An application example is presented as part of work on modeling of Enisei-Khatanga regional depression territory.

Social Areas and Durkheim's Theory of Suicide

1976 ◽  
Vol 38 (3_suppl) ◽  
pp. 1313-1314 ◽  
Author(s):  
Friedrich V. Wenz
Keyword(s):  
Social Integration ◽  
Suicide Rate ◽  
Empirical Data ◽  
Census Data ◽  
Original Formulation ◽  
Social Survey ◽  
Unit Of Analysis ◽  
Suicide Rates ◽  
Data Support ◽  
Social Area

A reformulation of Durkheim's model of social integration and suicide rates was tested using social survey and census data for social area populations in Flint, Michigan. The hypothesis predicts: the more integrated a social-area population, the lower its suicide rate. It is concluded that the concept of social area defines an adequate unit of analysis for testing Durkheim's model, and the empirical data support Durkheim's original formulation.

scholarly journals A Modified Kulka Micromethod for the Rapid and Safe Analysis of Fructose and 1-Deoxy-d-xylulose-5-phosphate

Metabolites ◽  
2018 ◽  
Vol 8 (4) ◽  
pp. 77
Author(s):  
Shreya Shaw ◽  
Robin Ghosh
Keyword(s):  
High Throughput ◽  
Enzyme Assays ◽  
Original Formulation ◽  
Laboratory Environment ◽  
Butanol Extraction ◽  
Common Substrate ◽  
Biology Laboratory ◽  
Resorcinol Method ◽  
Growth Experiments

The Kulka resorcinol assay (Kulka, R.G., Biochemistry 1956, 63, 542–548) for ketoses has been widely used in the literature but suffers from two major disadvantages: (a) it employs large amounts of potentially harmful reagents for a general biology laboratory environment; and (b) in its original formulation, it is unsuited for modern high-throughput applications. Here, we have developed a modified Kulka assay, which contains a safer formulation, employing approx. 5.4 M HCl in 250 µL aliquots, and is suitable for use in high-throughput systems biology or enzymatic applications. The modified assay has been tested extensively for the measurement of two ketoses—fructose (a common substrate in cell growth experiments) and 1-deoxy-d-xylulose-5-phosphate (DXP), the product of the DXP-synthase reaction—which until now has only been assayable using time-consuming chromatographic methods or radioactivity. The Kulka microassay has a sensitivity of 0–250 nmol fructose or 0–500 nmol DXP. The assay is suitable for monitoring the consumption of fructose in bacterial growth experiments but is too insensitive to be used directly for the measurement of DXP in in vitro enzyme assays. However, we show that after concentration of the DXP-enzyme mix by butanol extraction, the Kulka resorcinol method can be used for enzyme assays.

scholarly journals El post-cognitivismo en cuestión: extensión, corporización y enactivismo

2016 ◽  
Vol 19 (3) ◽  
pp. 475
Author(s):  
Federico Gabriel Burdman
Keyword(s):  
Extended Mind ◽  
Theoretical Framework ◽  
Original Formulation ◽  
Embodied Mind ◽  
The Face

http://dx.doi.org/10.5007/1808-1711.2015v19n3p475In this paper I look into a problem concerning the characterization of the main conceptual commitments of the ‘post-cognitivist’ theoretical framework. I will firs consider critically a proposal put forth by Rowlands (2010), which identifie the theoretical nucleus of post-cognitivism with a convergence of the theses of the extended and the embodied mind. The shortcomings I fin in this proposal will lead me to an indepedent and wider issue concerning the apparent tensions between functionalism and the embodied and enactive approaches. I will then discuss the standing of embodied, enactive and extended approaches in the face of the dividing issue concerning functionalism, with an eye on the possibility of divorcing the thesis of the extended mind of its original formulation in functionalist terms. In this way, I shall consider the outlook of overcoming some of the conceptual tensions in post-cognitivism by thinking its theoretical framework as non-functionalist.

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