scholarly journals ANALYSIS OF PREPARED ACOUSTIC BOARDS FROM NATURAL WASTE MATERIALS USING ACTRAN SOFTWARE AND ITS APPLICATION

2020 ◽  
pp. 23-30
Author(s):  
AMRITA PRABHU K ◽  
FERRAO REBECCA DE MARIA ◽  
KARAN MANOJ ◽  
NIDHI SATISH ◽  
SAI HARSHITHA S ◽  
...  
Keyword(s):  
Material Properties ◽  
Chemical Engineering ◽  
Two Dimensions ◽  
Waste Materials ◽  
Corn Cobs ◽  
Absorption Potential ◽  
Different Dimensions ◽  
Acoustic Enclosures ◽  
Chemical Engineering Equipment ◽  
40 Hz

The investigations focus on analyzing acoustic enclosures intended for noisy Chemical Engineering equipment made out of natural waste materials namely corn cobs, corn stovers and banana stalks using Actran Software with the parameters of study being the comparison between different dimensions of enclosure and material properties of different substances used. Upto 50 Hz frequency, there was no evident distinction in the Pressure-map between two dimensions of enclosures, while beyond 50 Hz, there was a difference with the larger enclosure encountering greater pressure intensities as well as greater ranges of pressure intensities. In the frequency range of 40 Hz - 75 Hz for the smaller enclosure and 30 Hz - 65 Hz for the larger, there was a significant effect of the changing material properties on the sound absorbing ability of the enclosure. When the two plots of enclosures for changing material properties were compared, some amount of instability in the graphs of the three materials was encountered at higher frequencies in the case of the larger enclosure. Upon analyzing the results, banana stalks showed better sound absorption potential followed by corn cobs and corn stovers at frequencies in the range 40 Hz - 70 Hz.

scholarly journals ANALYSIS OF PREPARED ACOUSTIC BOARDS FROM NATURAL WASTE MATERIALS USING ACTRAN SOFTWARE AND ITS APPLICATION

2020 ◽  
pp. 23-30
Author(s):  
AMRITA v ◽  
FERRAO REBECCA DE MARIA ◽  
KARAN MANOJ ◽  
NIDHI SATISH ◽  
SAI HARSHITHA S ◽  
...  
Keyword(s):  
Material Properties ◽  
Chemical Engineering ◽  
Two Dimensions ◽  
Waste Materials ◽  
Corn Cobs ◽  
Absorption Potential ◽  
Different Dimensions ◽  
Acoustic Enclosures ◽  
Chemical Engineering Equipment ◽  
40 Hz

The investigations focus on analyzing acoustic enclosures intended for noisy Chemical Engineering equipment made out of natural waste materials namely corn cobs, corn stovers and banana stalks using Actran Software with the parameters of study being the comparison between different dimensions of enclosure and material properties of different substances used. Upto 50 Hz frequency, there was no evident distinction in the Pressure-map between two dimensions of enclosures, while beyond 50 Hz, there was a difference with the larger enclosure encountering greater pressure intensities as well as greater ranges of pressure intensities. In the frequency range of 40 Hz - 75 Hz for the smaller enclosure and 30 Hz - 65 Hz for the larger, there was a significant effect of the changing material properties on the sound absorbing ability of the enclosure. When the two plots of enclosures for changing material properties were compared, some amount of instability in the graphs of the three materials was encountered at higher frequencies in the case of the larger enclosure. Upon analyzing the results, banana stalks showed better sound absorption potential followed by corn cobs and corn stovers at frequencies in the range 40 Hz - 70 Hz.

scholarly journals ANALYSIS OF PREPARED ACOUSTIC BOARDS FROM NATURAL WASTE MATERIALS USING ACTRAN SOFTWARE AND ITS APPLICATION

2020 ◽  
pp. 23-30
Author(s):  
AMRITA PRABHU K ◽  
FERRAO REBECCA DE MARIA ◽  
KARAN MANOJ ◽  
NIDHI SATISH ◽  
SAI HARSHITHA S ◽  
...  
Keyword(s):  
Material Properties ◽  
Chemical Engineering ◽  
Two Dimensions ◽  
Waste Materials ◽  
Corn Cobs ◽  
Absorption Potential ◽  
Different Dimensions ◽  
Acoustic Enclosures ◽  
Chemical Engineering Equipment ◽  
40 Hz

The investigations focus on analyzing acoustic enclosures intended for noisy Chemical Engineering equipment made out of natural waste materials namely corn cobs, corn stovers and banana stalks using Actran Software with the parameters of study being the comparison between different dimensions of enclosure and material properties of different substances used. Upto 50 Hz frequency, there was no evident distinction in the Pressure-map between two dimensions of enclosures, while beyond 50 Hz, there was a difference with the larger enclosure encountering greater pressure intensities as well as greater ranges of pressure intensities. In the frequency range of 40 Hz - 75 Hz for the smaller enclosure and 30 Hz - 65 Hz for the larger, there was a significant effect of the changing material properties on the sound absorbing ability of the enclosure. When the two plots of enclosures for changing material properties were compared, some amount of instability in the graphs of the three materials was encountered at higher frequencies in the case of the larger enclosure. Upon analyzing the results, banana stalks showed better sound absorption potential followed by corn cobs and corn stovers at frequencies in the range 40 Hz - 70 Hz.

Simulation Study of Granular Compaction Dynamics under Vertical Tapping

2007 ◽  
Vol 555 ◽  
pp. 107-112 ◽  
Author(s):  
D. Arsenović ◽  
S.B. Vrhovac ◽  
Z.M. Jakšić ◽  
Lj. Budinski-Petković ◽  
A. Belić
Keyword(s):  
Numerical Simulation ◽  
Molecular Dynamics ◽  
Friction Coefficient ◽  
Simulation Study ◽  
Material Properties ◽  
Two Dimensions ◽  
Second Phase ◽  
Hard Disks ◽  
Compaction Process ◽  
Granular Compaction

We study by numerical simulation the compaction dynamics of frictional hard disks in two dimensions, subjected to vertical shaking. Shaking is modeled by a series of vertical expansions of the disk packing, followed by dynamical recompression of the assembly under the action of gravity. The second phase of the shake cycle is based on an efficient event−driven molecular−dynamics algorithm. We analyze the compaction dynamics for various values of friction coefficient and coefficient of normal restitution. We find that the time evolution of the density is described by ρ(t)=ρ∞ − ρEα[−(t/τ)α], where Eα denotes the Mittag−Leffler function of order 0<α<1. The parameter τ is found to decay with tapping intensity Γ according to a power law τ ∝ Γ−γ , where parameter γ is almost independent of the material properties of grains. Also, an expression for the grain mobility during compaction process has been obtained.

Contrasting IT Capability and Organizational Types

2012 ◽  
pp. 1-24
Author(s):  
Terry A. Byrd ◽  
Linda W. Byrd
Keyword(s):  
Firm Performance ◽  
Performance Measures ◽  
Two Dimensions ◽  
Resource Based View ◽  
It Capability ◽  
Market Requirements ◽  
It Resources ◽  
Different Dimensions ◽  
The Impact ◽  
Inside Out

The Resource-Based View (RBV) has become one of the most popular ways to examine the impact of IT on firm performance. An increasing number of researchers are using the theoretical underpinning of the RBV to ground their research in investigating this relationship. This paper follows in this tradition by developing multidimensional measures for two dimensions of IT capability, inside-out IT capability and spanning IT capability. In this regard, the authors relate these dimensions to firm performance as profit ratios and cost ratios. Inside-out capability is the IT resources deployed from inside the firm in response to market requirements and opportunities. However, spanning IT capability involves both internal and external analysis and is needed to integrate the firm’s inside-out and outside-in IT competences. This study also makes an exploratory comparative assessment of the relative impact of inside-out IT capability and spanning IT capability, while analyzing the differences on the impact of IT capability in diverse types of organizations. Finally, the authors give evidence that different dimensions of IT capability may have different effects on performance measures.

Contrasting IT Capability and Organizational Types

2010 ◽  
Vol 22 (4) ◽  
pp. 1-23 ◽  
Author(s):  
Terry Anthony Byrd ◽  
Linda W. Byrd
Keyword(s):  
Firm Performance ◽  
Two Dimensions ◽  
Comparative Assessment ◽  
Theoretical Underpinning ◽  
Resource Based View ◽  
It Capability ◽  
Market Requirements ◽  
Different Dimensions ◽  
The Impact ◽  
Inside Out

The Resource-Based View (RBV) has become one of the most popular ways to examine the impact of IT on firm performance. An increasing number of researchers are using the theoretical underpinning of the RBV to ground their research in investigating this relationship. This paper follows in this tradition by developing multidimensional measures for two dimensions of IT capability, inside-out IT capability and spanning IT capability. In this regard, the authors relate these dimensions to firm performance as profit ratios and cost ratios. Inside-out capability is the IT resources deployed from inside the firm in response to market requirements and opportunities. However, spanning IT capability involves both internal and external analysis and is needed to integrate the firm’s inside-out and outside-in IT competences. This study also makes an exploratory comparative assessment of the relative impact of inside-out IT capability and spanning IT capability, while analyzing the differences on the impact of IT capability in diverse types of organizations. Finally, the authors give evidence that different dimensions of IT capability may have different effects on performance measures.

scholarly journals Conservation Laws and Travelling Wave Solutions for Double Dispersion Equations in (1+1) and (2+1) Dimensions

Symmetry ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 950 ◽  
Author(s):  
María Luz Gandarias ◽  
María Rosa Durán ◽  
Chaudry Masood Khalique
Keyword(s):  
Conservation Laws ◽  
Travelling Waves ◽  
Travelling Wave ◽  
Two Dimensions ◽  
Travelling Wave Solutions ◽  
Dispersion Equations ◽  
Different Dimensions ◽  
Double Dispersion ◽  
Long Nonlinear Wave ◽  
Line Soliton

In this article, we investigate two types of double dispersion equations in two different dimensions, which arise in several physical applications. Double dispersion equations are derived to describe long nonlinear wave evolution in a thin hyperelastic rod. Firstly, we obtain conservation laws for both these equations. To do this, we employ the multiplier method, which is an efficient method to derive conservation laws as it does not require the PDEs to admit a variational principle. Secondly, we obtain travelling waves and line travelling waves for these two equations. In this process, the conservation laws are used to obtain a triple reduction. Finally, a line soliton solution is found for the double dispersion equation in two dimensions.

Manifestos and the “two faces” of parties

2016 ◽  
Vol 24 (3) ◽  
pp. 278-288 ◽  
Author(s):  
Robert Harmel ◽  
Alexander C Tan ◽  
Kenneth Janda ◽  
Jason Matthew Smith
Keyword(s):  
Two Dimensions ◽  
Different Dimensions ◽  
Electoral Performance ◽  
Profile Change

It is commonplace to see references to parties’ manifestos as their written issue “profiles,” and changes in such documents as constituting changes in the parties’ “images” or “identities,” with the latter terms often used interchangeably to capture the role of platforms. This article argues, however, that projection of a party’s “image” and its “identity” are two different functions for a manifesto, not just one, and that it is important for the building and testing of theory that this distinction be maintained. Parties are, after all, addressing two audiences simultaneously with one document, and the two dimensions provide two alternative objects of change which can be used strategically to please both audiences at once. The article employs existing manifesto-based measures of parties’ relative issue emphases and their positions on a range of issues as indicators of image and identity, respectively, and finds that the two are indeed empirically distinct. Then, an earlier test of the electoral performance hypothesis as applied to emphasis change is replicated with data designed to capture change in issue positions. The test provides evidence for the prudence of maintaining the distinction between emphasis and position as two different dimensions of party profile change.

A Semiotic Approach to Dimensions of Meaning in Translation

2016 ◽  
Vol 6 (3) ◽  
pp. 596
Author(s):  
Xian Xiao
Keyword(s):  
Two Dimensions ◽  
Meaning Potential ◽  
Metaphorical Meaning ◽  
Translation Practice ◽  
Semiotic Approach ◽  
Special Occasion ◽  
Different Dimensions ◽  
Relationship Of ◽  
The Relationship

This paper attempts to follow the thoughts of Saussure and Peirce, and take their thoughts as beacons to analyze the different dimensions of meaning. Signs exist for representing the objects either in reality or in imagery, and during the signifying process, two dimensions of meaning come into being, signification and significance. Signification internalized in the structure could be understood from the perspective of structuralism. In Contrast, significance is the effect of what is referred to in a synchronical dimension as meaning potential related to the outside systems, which may be further classified into three aspects: metaphorical meaning, implicature and associative meaning. Moreover, the relationship of signification and significance is dynamic, not static characterized by hierarchy, convertibility and coexistence. Moreover, this paper also discusses how to achieve equivalence based on the dimensions of meaning in an optimal way in real translation practice, which includes signification equivalence, significance equivalence and signification\significance equivalence which is an intersection sandwiched between signification and significance. Signification equivalence and significance equivalence highlight the ability of indicating and creation of signs whereas signification\significance equivalence, accompanied by the developing signifying process focuses on the pragmatic fuzziness brought by the speakers or writers on special occasion on purpose

Study on Public Cognition of NGOs from the Perspective of Legitimacy

2020 ◽  
Vol 12 (1) ◽  
pp. 63-86
Author(s):  
Miao Gao ◽  
Kegao Yan
Keyword(s):  
Educational Background ◽  
Basic Element ◽  
Two Dimensions ◽  
Individual Characteristics ◽  
Theoretical Research ◽  
Policy Advocacy ◽  
The Public ◽  
Different Dimensions ◽  
And Function ◽  
And Training

Abstract Public cognition is the basic element of the legitimacy of NGOs and has an important influence on the development of NGOs, but it receives insufficient attention in theoretical research. This paper examines public cognition of NGOs by constructing a scale in the two dimensions of attribute and function and distributing 2,596 questionnaires in 29 provincial regions across China. The results show that the level of public cognition of NGOs is generally high; compared with attribute cognition, function cognition is at a higher level and more stable; in terms of internal structure, the non-distributive attribute and policy advocacy function are at the bottom of attribute cognition and function cognition, respectively. Individual characteristics, such as demographic characteristics, educational background, region, and type of their organization, have varying impacts on public cognition of NGOs in different dimensions. In addition, involvement, business connection, and training influence the level of public cognition of NGOs through function cognition. To further increase public cognition of NGOs and improve legitimacy of NGOs, focus should be on the dissemination of knowledge about NGOs, and public education in this regard should be continuously strengthened, so that the public can get a better and more comprehensive understanding of NGOs.

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