scholarly journals The Model of Digital Cartographic Layers of Different Scales to Calculate the Ratios of Cartographic Generalizations: An Applied Study to Anah City

2021 ◽  
Vol 16 (7) ◽  
pp. 1245-1252
Author(s):  
Zuhair Jaber Mushref ◽  
Ameer Mohammed Khalaf ◽  
Salah Othman Abed Al-Ani
Keyword(s):  
Three Dimensional ◽  
Land Uses ◽  
Dimensional Model ◽  
Functional Importance ◽  
Three Dimensional Model ◽  
Applied Study ◽  
Digital Cartography ◽  
Accurate Perception ◽  
Modern Technologies

The research aims to give an accurate perception of the role of modern technologies, represented by geographic information systems, in extracting data and information, and then building a geographical database for urban land uses in an Ana city to reach generalized models based on the source map with a scale of 1/5000 and then building generalized models through The application of digital generalization elements according to the different standards adopted in the research (1/10000, 1/25000, 1/50000, 1/100000) in order to reach the end to the best results in the cartographic production of these models in a way that facilitates the process of understanding and perception by finding The most appropriate way to represent this data on a map according For the functional importance of each of the uses through disposal to eliminate overlap between uses Depending on the generalization elements of selecting, deleting, simplifying, smoothing, coding and exaggeration, and finally, as The research showed that there is a difference in the areas, uses and preparation of methods when moving from one scale to another. the research concluded by building a three-dimensional model to simulate the natural process of generalizing digital cartography according to different scales.

scholarly journals Substrate (aglycone) specificity of human cytosolic beta-glucosidase

2003 ◽  
Vol 373 (1) ◽  
pp. 41-48 ◽  
Author(s):  
Jean-Guy BERRIN ◽  
Mirjam CZJZEK ◽  
Paul A. KROON ◽  
W. Russell MCLAUCHLAN ◽  
Antoine PUIGSERVER ◽  
...  
Keyword(s):  
Structural Model ◽  
Homology Modelling ◽  
Three Dimensional ◽  
Amino Acid Residues ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Mutant Proteins ◽  
Metabolizing Enzyme ◽  
Beta Glucosidase

Human cytosolic β-glucosidase (hCBG) is a xenobiotic-metabolizing enzyme that hydrolyses certain flavonoid glucosides, with specificity depending on the aglycone moiety, the type of sugar and the linkage between them. Based upon the X-ray structure of Zea mays β-glucosidase, we generated a three-dimensional model of hCBG by homology modelling. The enzyme exhibited the (β/α)8-barrel fold characteristic of family 1 β-glucosidases, with structural differences being confined mainly to loop regions. Based on the substrate specificity of the human enzymes, sequence alignment of family 1 enzymes and analysis of the hCBG structural model, we selected and mutated putative substrate (aglycone) binding site residues. Four single mutants (Val168→Tyr, Phe225→Ser, Tyr308→Ala and Tyr308→Phe) were expressed in Pichia pastoris, purified and characterized. All mutant proteins showed a decrease in activity towards a broad range of substrates. The Val168→Tyr mutation did not affect Km on p-nitrophenyl (pNP)-glycosides, but increased Km 5-fold on flavonoid glucosides, providing the first biochemical evidence supporting a role for this residue in aglycone-binding of the substrate, a finding consistent with our three-dimensional model. The Phe225→Ser and Tyr308→Ala mutations, and, to a lesser degree, the Tyr308→Phe mutation, resulted in a drastic decrease in specific activities towards all substrates tested, indicating an important role of those residues in catalysis. Taken together with the three-dimensional model, these mutation studies identified the amino-acid residues in the aglycone-binding subsite of hCBG that are essential for flavonoid glucoside binding and catalysis.

The Parametric Analysis of the Threshold Value Judging Mechanism in MEMS Safety and Arming Device

2015 ◽  
Vol 645-646 ◽  
pp. 968-971
Author(s):  
Fu Fu Wang ◽  
Wen Zhong Lou ◽  
Fang Yi Liu ◽  
Da Kui Wang ◽  
Ming Rong Zhang ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Threshold Value ◽  
Element Model ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Long Distance ◽  
And Control ◽  
The Mathematical Model ◽  
The Finite Element Model

In this paper, a mechanical MEMS S&A device has been proposed. The size of the device is 10mm×13mm×0.5mm. The role of the threshold value judging mechanism is to determine the environment suffered by centrifugal force and control the sub-centrifugal slider not movement under the threshold, so as to effectively guarantee the time of long-distance arming. Through establishing the three-dimensional model of threshold value judging mechanism, establishing the force and the parameters of locking-releasing mechanism, deriving the mathematical model according to the rigid dynamic mechanics theory and establishing the finite element model by using ANSYS/LS-DYNA, appropriate threshold value judging mechanism is designed to meet two items, one item is the deformation of threshold value rod is not enough to release sub-centrifugal slider when the speed is less than 60000r/min; the other item is deformation of threshold value rod can release sub-centrifugal slider when the speed is more than 60000r/min.

scholarly journals Inhomogeneous stationary states of two-dimensional magnetofluids

1983 ◽  
Vol 30 (1) ◽  
pp. 95-107
Author(s):  
Roland Calinon ◽  
Danilo Merlini
Keyword(s):  
Three Dimensional ◽  
Stationary States ◽  
Two Dimensional ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
General Role ◽  
Poisson Equations ◽  
Principle Of Maximum Entropy ◽  
Principle Of Maximum

We discuss ensemble inhomogeneous states of general two-dimensional magneto-fluids. A subclass of approximate statistical inhomogeneous states of the model equation is constructed using the principle of maximum entropy. The fields are shown to satisfy generalized nonlinear Poisson equations and some limiting cases are solved analytically. The method is then applied to a pseudo-three-dimensional model of an electromagnetic filamentation instability. The results illustrate the general role of the global constants of the motion on the nature of the statistical profiles for the fields describing the most probable states in magnetofluids.

MATHEMATICAL AND NUMERICAL ANALYSIS OF A THREE-DIMENSIONAL FLUID FLOW MODEL IN GLACIOLOGY

2005 ◽  
Vol 15 (01) ◽  
pp. 37-52 ◽  
Author(s):  
JACQUES RAPPAZ ◽  
ADRIAN REIST
Keyword(s):  
Flow Model ◽  
Numerical Solutions ◽  
Three Dimensional ◽  
Ice Sheets ◽  
Tetrahedral Mesh ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Piecewise Polynomial Functions ◽  
Theoretical Results

The main goal of this article is to analyze a three-dimensional model for stress and velocity fields in grounded glaciers and ice sheets including the role of normal deviatoric stress gradients. This model leads to a nonlinear system of stationary partial differential equations for the velocity with a viscosity depending on the stress–tensor but which is not explicitly depending on the velocity. The existence and uniqueness of a weak solution corresponding to this model is established by using the calculus of variations. The approximation of this model is made by a finite element method with piecewise polynomial functions of degree 1 on a tetrahedral mesh and error analysis is performed. Numerical solutions show that the theoretical results we have obtained are almost optimal.

scholarly journals BUILDING A THREE-DIMENSIONAL MODEL OF AXIAL JET IN SOLIDWORKS

2019 ◽  
Vol 7 ◽  
pp. 76-79
Author(s):  
Vladimir Papulov
Keyword(s):  
Computer Simulation ◽  
Three Dimensional ◽  
Machine Building ◽  
Water Jet ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Building Orientation

The article provides a brief description of the construction of the main parts of the three-dimensional model of the axial water jet, followed by their Assembly into the finished product. The role of computer simulation in the design of complex types of propellers, which include water jet, is shown. The possibility of solving problems of hydrodynamics with the help of "SolidWorks"is demonstrated. The design of the water jet pipe, taking into account the absence of cavitation. The urgency of application of three-dimensional modeling in the field of shipbuilding, using CAD-programs of machine-building orientation is shown.

Structural analysis of co-crystals of actin and DNase I by electron microscopy and image processing

1983 ◽  
Vol 41 ◽  
pp. 536-537
Author(s):  
Walter E. Fowler ◽  
E. Loren Buhle ◽  
Ueli Aebi
Keyword(s):  
Electron Microscopy ◽  
Image Processing ◽  
Three Dimensional ◽  
Dnase I ◽  
Structural Studies ◽  
Dimensional Model ◽  
Functional Importance ◽  
Cellular Functions ◽  
Three Dimensional Model ◽  
Intracellular Proteins

Actin is known to specifically interact with a variety of intracellular proteins. Some of these interactions, for instance that of actin with myosin, are of obvious functional importance and have been extensively characterized, both biochemically and structurally. Other interactions, such as that of actin with DNase I, have not yet been correlated with specific cellular functions. In any case, the interaction between actin and DNase I has proven to be useful in both biochemical and structural studies. The two molecules form a tight 1:1 complex that inhibits the functions of both molecules: i.e. actin cannot polymerize into filaments any more and DNase I loses its enzymatic activity. The actin-DNase complex has been crystallized and a .6nm three-dimensional model of the complex has been obtained. Unfortunately, separation of the map into an actin and a DNase I part is ambiguous at this stage.

Cultural memory of social protest: Mnemonic literature about Gezi Park protests

2020 ◽  
pp. 175069802098205
Author(s):  
Pınar Melis Yelsalı Parmaksız
Keyword(s):  
Cultural Memory ◽  
Three Dimensional ◽  
Social Protest ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
The Social ◽  
Social Protests ◽  
Selection Of

This article problematizes the relation between the cultural memory and the Gezi Park protests which took place in 2013 in İstanbul. With this aim, a sample of the literature as the source for the analysis were selected. The selection of the literary productions were made purposively in order to analyze the memory of the Gezi Park protests in connection with the general understanding of the cultural memory. The relevance of the literature to the role of memory in social protest was analyzed on the basis of the three dimensional model of the relation between memory and literature by considering the working of three aspects of mnemonic mimesis: prefiguration, configuration, and reconfiguration. Consequently, literature as the mimesis of memory was connected to the analysis of the cultural memory of social protest. It was argued that the cultural memory of the Gezi Park protests contributes to the repertoire of the memory of the social protests in novel ways.

Automobility—A Social Problem and Theoretical Concept

10.1068/d222t ◽  
2001 ◽  
Vol 19 (5) ◽  
pp. 593-607 ◽  
Author(s):  
Jörg Beckmann
Keyword(s):  
Social Role ◽  
Three Dimensional ◽  
Theoretical Concept ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Dominant Type ◽  
The Social ◽  
Theoretical Assumptions ◽  
Almost All

In this paper, I explore automobility as the dominant type of contemporary everyday mobility. I critically review recent attempts to conceptualise the social role of cars and subsequently suggest a three-dimensional model to theorise automobility further as a modern mobility paradigm. This theory of automobility assigns central importance to the subjects, the vehicles, and the spatiotemporalities that are involved in, and produced by, the car-system. For the purpose of outlining the content and internal dependencies of this three-dimensional model, I make use of theoretical assumptions gleaned from transport geography, modernisation theory, as well as the sociology of technology. Furthermore, I argue that a somewhat orthodox form of automobilisation has become reflexive in the course of a growing public recognition of the inherent threats of the car to culture and nature. Under reflexive automobilisation almost all ‘auto-subjects’ are engaged in defining, interpreting, and responding to ‘auto-risks’. They do not necessarily do this, however, in a self-critical fashion. Instead of fostering the rise of a different, postautomotive mobility paradigm, their responses often merely lead to a reproduction of traditional ‘auto-scapes’.

scholarly journals The Use of a Three‐Dimensional Model System to Study the Role of the Myocardium during Coronary Development

2006 ◽  
Vol 20 (4) ◽  
Author(s):  
Tresa Lanelle Nesbitt ◽  
Jay D Potts ◽  
Michael J Yost ◽  
Robert L Price ◽  
Richard L Goodwin
Keyword(s):  
Three Dimensional ◽  
Model System ◽  
Dimensional Model ◽  
Three Dimensional Model
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