scholarly journals Performance Evaluation of Combined Input Output Queued Switch with Finite Input and Output Buffers

2002 ◽  
pp. 203-214
Author(s):  
Tsern-Huei Lee ◽  
Ying-Che Kuo
Keyword(s):  
Performance Evaluation ◽  
Input Output ◽  
Input And Output

scholarly journals Recessive Transition Mechanism of Arable Land Use Based on the Perspective of Coupling Coordination of Input–Output: A Case Study of 31 Provinces in China

Land ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 41
Author(s):  
Yi Lou ◽  
Guanyi Yin ◽  
Yue Xin ◽  
Shuai Xie ◽  
Guanghao Li ◽  
...  
Keyword(s):  
Land Use ◽  
Evaluation Model ◽  
Arable Land ◽  
Temporal Trends ◽  
Mainland China ◽  
Input Output ◽  
Transition Mechanism ◽  
Input And Output ◽  
Spatio Temporal ◽  
Arable Land Use

In the rapid process of urbanization in China, arable land resources are faced with dual challenges in terms of quantity and quality. Starting with the change in the coupling coordination relationship between the input and output on arable land, this study applies an evaluation model of the degree of coupling coordination between the input and output (D_CCIO) on arable land and deeply analyzes the recessive transition mechanism and internal differences in arable land use modes in 31 provinces on mainland China. The results show that the total amount and the amount per unit area of the input and output on arable land in China have presented different spatio-temporal trends, along with the mismatched movement of the spatial barycenter. Although the D_CCIO on arable land increases slowly as a whole, 31 provinces show different recessive transition mechanisms of arable land use, which is hidden in the internal changes in the input–output structure. The results of this study highlight the different recessive transition patterns of arable land use in different provinces of China, which points to the outlook for higher technical input, optimized planting structure, and the coordination of human-land relationships.

Voice Input/Output in Perspective

1982 ◽  
Vol 26 (3) ◽  
pp. 218-222
Author(s):  
Ken Funk ◽  
Ed McDowell
Keyword(s):  
Input Output ◽  
Voice Input ◽  
Input And Output ◽  
Machine Communication

Lately, quite a lot of effort has been put into the development of voice input and output systems for human-machine communication. In this paper, we point out that while voice I/O is ideal for many applications, there are others for which it is ill-suited and there is a danger that fascination with the technology may well result in its misuse.

Time-Domain Input-Output Transient Performance Validation for Modular Control Systems: Method and Examples

2010 ◽  
Author(s):  
Deepak Sharma ◽  
D. M. Tilbury ◽  
Lucia Seno
Keyword(s):  
Control Systems ◽  
Time Domain ◽  
Convex Sets ◽  
Mimo Systems ◽  
Transient Performance ◽  
Input Output ◽  
Modular Control ◽  
Input And Output ◽  
The Time Domain ◽  
Performance Validation

This paper presents results that can be used to validate input-output transient performance for modular control systems. If bounds in the time-domain are specified for inputs of an LTI SISO system, the techniques in this paper can determine the minimum set containing all possible outputs. If both input and output bounds are given, they can determine whether these specifications are met. Network delay affecting the input of the system is also considered. Finally, this paper extends the techniques for MIMO systems. The results are derived using the theory of convex sets. Several examples are presented to illustrate the results and demonstrate their application.

Kinematic Analysis of Spatial Six-Link 3R-2P-C Mechanisms

1976 ◽  
Vol 4 (2) ◽  
pp. 71-76
Author(s):  
M.O.M. Osman ◽  
R. V. Dukkipati
Keyword(s):  
Closed Form ◽  
Kinematic Analysis ◽  
Input Output ◽  
Variable Parameters ◽  
Output Displacement ◽  
Loop Equation ◽  
Dual Number ◽  
Input And Output ◽  
Order Polynomial ◽  
Output Equation

Using (3 x 3) matrices with dual-number elements, closed-form displacement relationships are derived for a spatial six-link R-C-P-R-P-R mechanism. The input-output closed form displacement relationship is obtained as a second order polynomial in the output displacement. For each set of the input and output displacements obtained from the equation, all other variable parameters of the mechanism are uniquely determined. A numerical illustrative example is presented. Using the dual-matrix loop equation, with proper arrangement of terms and following a procedure similar to that presented, the closed-form displacement relationships for other types of six-link 3R + 2P + 1C mechanisms can be obtained. The input-output equation derived may also be used to generate the input-output functions for five-link 2R + 2C + 1P mechanisms and four-link mechanisms with one revolute and three cylinder pairs.

EXPOSED LAYOUTS OF THE BUTTERFLY NETWORK

2001 ◽  
Vol 02 (02) ◽  
pp. 233-247 ◽  
Author(s):  
AMI LITMAN
Keyword(s):  
Bipartite Graph ◽  
Complete Bipartite Graph ◽  
Input Output ◽  
Layout Problem ◽  
Input And Output ◽  
Main Technique ◽  
Butterfly Network ◽  
N Input ◽  
Open Question ◽  
Minimal Area

This work studies layouts of the Butterfly network under the restriction that its input and output verticles are exposed, that is, are placed on the boundary of the grid. Avior et al. have shown that the minimal area of a layout of the n-input Butterfly, without the above restriction, is (1 + o(1))n2). The effect of this restriction on the area was left as an open question. This paper reveals that exposing the input and output vertices is essentially free. That is, it presents an exposed layout of the Butterfly having the same area as above. In this layout, the fractions of the input and output vertices assigned to each side of the grid are as follows when scanning the sides in a circular fashion: half of the inputs, half of the outputs, half of the inputs, and half of the outputs. We refer to such a layout as a [Formula: see text]-layout. The main technique employed in this layout is the reduction of the layout problem of the Butterfly to a certain layout problem of a complete bipartite graph. We use the same technique to produce a (I, 0, O, 0)-layout (inputs on one side and outputs on the opposite side) in area 2 + o(1))n2. Finally, we show that the area of a [Formula: see text]-layout is greater than [Formula: see text]. Hence, this input-output configuration is more area-demanding than [Formula: see text].

Modeling and Analysis of Genetic Algorithms Based on the Viewpoint of Mixture Systems

2003 ◽  
Vol 7 (3) ◽  
pp. 268-275
Author(s):  
Jun-ichi Imai ◽  
◽  
Hiroyuki Shioya ◽  
Masahito Kurihara ◽  
Keyword(s):  
Genetic Algorithms ◽  
Mixture Models ◽  
Information Source ◽  
Point Of View ◽  
Input Output ◽  
Output Data ◽  
Modeling And Analysis ◽  
Input And Output ◽  
Partial Systems ◽  
Theoretical Analyses

Some mathematical models have been proposed for theoretical analyses of genetic algorithms (GAs). However, these works have limited their objects to a few kinds of GAs in order to formulate them accurately. In this paper, we regard a GA as an information source that generates input-output data. That is, we regard a population and its next population generated by the GA as input and output respectively. Then we model the GA by learning from these data. Since this method uses only the input-output relations of data and ignores interior structures, we can describe a variety of GAs in a common form, and analyze them from a new point of view. We use some mixture models for a representation of these input-output relations in this paper. By using a mixture model for modeling a GA, we can represent the GA system as a combination of some partial systems. In this paper, we treat two types of mixture models, and investigate how these models are effective for analyzing GAs through some numerical experiments.

scholarly journals Solid Modelling Interaction with Sensors for Virtual Reality Welding

2018 ◽  
Vol 144 ◽  
pp. 01008 ◽  
Author(s):  
V. G. Bharath ◽  
Rajashekar Patil
Keyword(s):  
Virtual Reality ◽  
Augmented Reality ◽  
Movement Control ◽  
Solid Modelling ◽  
Input Output ◽  
Dynamic Constraints ◽  
Unity 3D ◽  
Input And Output ◽  
Cad Models ◽  
Motion Characteristic

The imperative part of strong displaying in virtual reality framework is to improve the movement of a user with definitive movement control in genuine intelligent condition. In a real environment motion characteristic is based on sensors and servomechanisms where as in virtual reality systems the motion fundamentals are kinematic in nature. To achieve physically correct interactivity suitable dynamic constraints, should be imposed which can be obtained by augmented reality interface. Beyond input and output hardware, the underlying software plays a very important role in virtual reality systems. It is responsible for the managing of input/output devices, analysing incoming data and generating proper feedback. This research paper focusses on movement displaying for connection between CAD models and Virtual Reality Models using 3ds Max 2017 and Unity 3d softwares. The paper portrays different equipment arrangement of sensors and Arduino for virtual reality welding.

scholarly journals Parameter Estimation of a Single-Phase Boost PFC Converter with EMI Filter based on an Optimization Algorithm

2021 ◽  
Author(s):  
Gabriel Rojas-Dueñas ◽  
Jordi-Roger Riba ◽  
Manuel Moreno-Eguilaz
Keyword(s):  
Steady State ◽  
Single Phase ◽  
Power Converters ◽  
Trust Region ◽  
Nonlinear Least Squares ◽  
Input Output ◽  
Transient Signals ◽  
Input And Output ◽  
Power Factor Corrector ◽  
Emi Filter

This paper proposes an approach to estimate the parameters of an AC-DC boost power factor corrector converter which includes an EMI filter. To this end, once the topology is known, measurements at the input and output terminals of the converter are done to identify the values of the passive elements. The proposed methodology is based on the trust-region nonlinear least squares algorithm to identify the parameters of the converter. The steady-state and the transient signals of the converter at the input/output terminals are acquired non-intrusively without any internal modification of the circuitry. The accuracy of the parameter identification carried out is determined by comparing the estimated values with the actual values provided by the manufacturer, and by contrasting the measured signals with the ones obtained with a simulation model with the estimated values of the parameters. The results presented in this paper prove the accuracy of the proposed approach, which can be extended to other power converters and filters.

scholarly journals A full investigation of the directional congestion in data envelopment analysis

2019 ◽  
Author(s):  
somayeh khezri ◽  
Akram Dehnokhalaji ◽  
Farhad Hosseinzadeh Lotfi
Keyword(s):  
Decision Making ◽  
Data Envelopment Analysis ◽  
Data Envelopment ◽  
Input Output ◽  
Input And Output ◽  
Dea Models ◽  
Systems Of Inequalities ◽  
Full Investigation ◽  
Decision Making Units ◽  
Inputs And Outputs

One of interesting subjects in Data Envelopment Analysis (DEA) is estimation of congestion of Decision Making Units (DMUs). Congestion is evidenced when decreases (increases) in some inputs re- sult in increases (decreases) in some outputs without worsening (im- proving) any other input/output. Most of the existing methods for measuring the congestion of DMUs utilize the traditional de nition of congestion and assume that inputs and outputs change with the same proportion. Therefore, the important question that arises is whether congestion will occur or not if the decision maker (DM) increases or de- creases the inputs dis-proportionally. This means that, the traditional de nition of congestion in DEA may be unable to measure the con- gestion of units with multiple inputs and outputs. This paper focuses on the directional congestion and proposes methods for recognizing the directional congestion using DEA models. To do this, we consider two di erent scenarios: (i) just the input direction is available. (ii) none of the input and output directions are available. For each scenario, we propose a method consists in systems of inequalities or linear pro- gramming problems for estimation of the directional congestion. The validity of the proposed methods are demonstrated utilizing two nu- merical examples.

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