The Transient Characteristerics Evaluation of Dynamic Environmental Test of Satellite

2012 ◽  
Vol 591-593 ◽  
pp. 2000-2005
Author(s):  
Jian Bin Zhu ◽  
Shu Hong Xiang ◽  
Yao Qi Feng ◽  
Shi Chao Fan
Keyword(s):  
Structural Model ◽  
Evaluation Criteria ◽  
Dynamic Environment ◽  
Dynamic Test ◽  
Transient Characteristics ◽  
Environmental Test ◽  
Effect Time ◽  
Flight Model ◽  
Model Phase

The dynamic environmental test of spacecraft products plays an important role to guarantee the reliability. Dynamic environment of spacecraft mainly generated in the launch phase, has short effect time, so the transient characteristics of spacecraft products are very important. In this paper, the dynamic test purposes of different developed stages (mainly include structural model phase and flight model phase)are sorted out, evaluation contents of spacecraft products are summed up relative to the dynamic test purposes and evaluation criteria are setup corresponding the evaluation contents. Though it, the transient characteristics of spacecraft products are evaluated which provides a reference for judging the reliability of spacecraft products.

Analysing the 3PL service provider’s evaluation criteria through a sustainable approach

2019 ◽  
Vol 68 (5) ◽  
pp. 958-980 ◽  
Author(s):  
Bhaskar B. Gardas ◽  
Rakesh D. Raut ◽  
Balkrishna E. Narkhede
Keyword(s):  
Structural Model ◽  
Evaluation Criteria ◽  
Third Party ◽  
Original Research ◽  
Policy Makers ◽  
Content Type ◽  
Expert Opinions ◽  
Quality Certification ◽  
Efficient Selection ◽  
Selection Of

Purpose The purpose of this paper is to identify and model the evaluation criteria for the selection of third-party logistics service provider (3PLSP) by an interpretive structural modelling (ISM) approach in the pharmaceutical sector. Design/methodology/approach Delphi technique was used for identifying the most significant criteria, and the ISM method was employed for developing the interrelationship among the criteria. Also, the critical criteria for having high influential power were identified by using the Matrice d’Impacts Croisés Multiplication Appliqués à un Classement analysis. Findings The most significant factors, namely, capability of robust supply network/distribution network, quality certification and health safety, service quality and environmental quality certifications, were found to have a high driving power, and these factors demand the maximum attention of the decision makers. Research limitations/implications As the ISM approach is a qualitative tool, the expert opinions were used for developing the structural model, and the judgments of the experts could be biased influencing the reliability of the model. The developed hierarchical concept is proposed to help the executives, decision and policy makers in formulating the strategies and the evaluation of sustainable 3PLSP. Originality/value It is an original research highlighting the association between the sustainable 3PLSP evaluation criteria by employing ISM tool in the pharmaceutical industry. This paper will guide the managers in understanding the importance of the evaluation criteria for the efficient selection of 3PLSP.

scholarly journals Assessment of Shopping Mall Customers’ Experience through Criteria of Attractiveness in Tier-II and Tier-III Cities of India: An Exploratory Study

2020 ◽  
Vol 23 (1) ◽  
pp. 70-93
Author(s):  
Ashish Gupta ◽  
Vaibhav Mishra ◽  
Anushree Tandon
Keyword(s):  
Exploratory Study ◽  
Customer Value ◽  
Structural Model ◽  
Evaluation Criteria ◽  
Shopping Mall ◽  
Facilities Management ◽  
Tier Ii ◽  
Shopping Experience ◽  
Tenant Mix ◽  
Different Levels

The present research attempts to develop a theoretical framework for the assessment of shopping mall customer experience dimensions. It further classifies the variables associated with retail experiences that may attract customers in Tier-II and Tier- III cities towards the malls. Exhaustive literature review and expert opinion approaches have been used to explore the evaluation criteria for the assessment of the mall experience. ISM is used to develop a structural model that represents relationships among variables at different levels along with driving and dependence relationships in the structural model. The result highlights that factors like customer value orientation, tenant mix, employees, facilities management are the most significant benchmarking criteria for customers’ assessment of their mall experience in the present study. To achieve profitable operations in these cities, retailer’s need to acquaint themselves with the expectations of customers in order to attract their attention. This indicates that it is imperative for mall managers to identify how consumers benchmark different parameters while evaluating a mall experience. Understanding the importance of such parameters will allow malls to be built according to some standard specifications that can meet a consumer’s threshold for appeal and attractiveness. The study adds to the existing literature of assessing shopping experience in Tier-II and Tier-III cities’ malls through a structural model. The most and the least dominant factors found in this study will help mall managers to develop strategies to enhance the customer shopping experience in malls.

scholarly journals Environmental Test Results of a Flight Model of a Compact Imaging Spectrometer for a Microsatellite STSAT-3

2011 ◽  
Vol 22 (4) ◽  
pp. 184-190 ◽  
Author(s):  
Sang-Jun Lee ◽  
Jung-Hyun Kim ◽  
Jun-Ho Lee ◽  
Chi-Won Lee ◽  
Tae-Sung Jang ◽  
...  
Keyword(s):  
Test Results ◽  
Imaging Spectrometer ◽  
Environmental Test ◽  
Flight Model

Development of a Remotely Collaborative Testing Platform for Bridge Structures Based on NetSLab

2013 ◽  
Vol 639-640 ◽  
pp. 1137-1141
Author(s):  
Yu Rong Guo ◽  
Ming Tan
Keyword(s):  
Large Scale ◽  
Structural Model ◽  
Dynamic Testing ◽  
Research Work ◽  
Dynamic Test ◽  
Control Center ◽  
Testing Platform ◽  
Collaborative Testing ◽  
Test Platform ◽  
Bridge Structures

A remotely collaborative pseudo-dynamic testing platform for bridge structures has been developed based on NetSLab system. It can be used for seismic performance investigation of large-scale bridge structures by combining the Internet and sub-structure technology. The testing platform consists of three modules: control center, physical tester and virtual tester. Through a network communication platform, the operation of receiving and feedback of test data between various modules can be realized. Based on the previous research work, a further improvement of the dynamic structural model, the finite element numerical analysis and the rational division of sub-structure has been achieved. A series of remotely virtual collaborative pseudo-dynamic test of bridge structures has been conducted to verify the feasibility of the test platform.

Dynamic characteristics of magnetorheological fluid squeeze flow considering wall slip and inertia

2019 ◽  
Vol 31 (2) ◽  
pp. 229-242 ◽  
Author(s):  
Xinjie Zhang ◽  
Ruochen Wu ◽  
Konghui Guo ◽  
Piyong Zu ◽  
Mehdi Ahmadian
Keyword(s):  
Yield Stress ◽  
Excitation Frequency ◽  
Dynamic Environment ◽  
Dynamic Test ◽  
Inertial Force ◽  
Control Valve ◽  
Wall Slip ◽  
Magnetorheological Fluid ◽  
Squeeze Flow ◽  
Vertical Force

Magnetorheological fluid has been investigated intensively nowadays, and magnetorheological fluid shows large force capabilities in squeeze mode with wide application potential such as control valve, engine mounts, and impact dampers. In these applications, magnetorheological fluid is flowing in a dynamic environment due to the transient nature of inputs and system characteristics. Hence, this article undertakes a comprehensive study of magnetorheological fluid squeeze flow dynamics behaviors with wall slip, yield, and inertia. First, the dynamic model with the bi-viscous constitutive of magnetorheological fluid squeeze flow including wall slip and inertial force is presented. Then, the mathematical model is validated, matching magnetorheological fluid squeeze dynamic test results very well. Finally, the dynamics behavior and mechanism of magnetorheological fluid squeeze flow with inertia, yield, and wall slip are explored. Results show that (1) increasing yield stress and decreasing initial gap will increase the magnetorheological fluid vertical force greatly; (2) the wall slip affects the yield surface of magnetorheological fluids in the squeeze zone and affects the squeeze force; (3) the inertial force is increasing tremendously as the increased excitation frequency and yield stress and should be included with high-frequency excitation or yield stress.

B1 Flight Model Environmental Test Results for Small Demonstration Satellite-4(SDS-4)

2013 ◽  
Vol 2013.21 (0) ◽  
pp. _B1-1_-_B1-6_
Author(s):  
Moto TAKAI ◽  
Koichi FUJIHIRA ◽  
Kazutaka KAWASHIMA ◽  
Yosuke NAKAMURA ◽  
Koichi INOUE
Keyword(s):  
Test Results ◽  
Environmental Test ◽  
Flight Model

A Procedure for Comparing Dynamic Test Severities Based on Equipment Response Characteristics

1988 ◽  
Vol 31 (1) ◽  
pp. 62-66
Author(s):  
Frederick Spann
Keyword(s):  
Dynamic Response ◽  
Dynamic Environment ◽  
Dynamic Test ◽  
Dynamic Environments ◽  
Response Theory ◽  
Electronic Assembly ◽  
Response Characteristics ◽  
Effective Application ◽  
Test Requirements

Military specifications contain numerous requirements for qualification of equipment for dynamic environments. Cost and schedule effective application of these specifications require tailoring of these test requirements. This paper presents a technique for tailoring dynamic environment tests based on equipment response characteristics. The dynamic response theory is explained and applied to a procedure for comparing the relative severity of dynamic environmental tests. The procedure is shown using the example of an electronic assembly.

scholarly journals Customized Incubation Services and Growth of Tenants: The Mediating Effect of Behavior Orientation of Social Networking Services

2021 ◽  
Vol 12 ◽  
Author(s):  
Li Zhang ◽  
Yongtao Zhou
Keyword(s):  
Theoretical Model ◽  
Social Networking ◽  
Structural Model ◽  
Empirical Test ◽  
Dynamic Environment ◽  
Mediating Effect ◽  
Impact Behavior ◽  
Social Networking Services ◽  
The Social ◽  
The Impact

The third-generation incubator is generally characterized by embedment of social networking and customized incubation services are closely embedded in the social networking. How the social networking play their role in the process that customized incubation services facilitate the growth of tenant? In order to disclose whether social networking services (SNS) mediate the impact of customized incubation services on the growth of tenants, this article focuses on the whole process where customized services facilitate the growth of tenants by means of social networking services. First, it employs situational theory and contingency theory to analysis why customized services result in behavior of social networking services; second, it explores why behavior of social networking services facilitates the growth of tenants based on co-production theory and social network theory; next, it conduct a study on the direct relationship between customized services and growth of tenants anchoring on the theory of co-production, customer satisfaction, and dynamic environment. Based on these theories, it develops the overall theoretical model of mediating effect. Following that, it conducts empirical test: it has first ascertained whether there is a positive relationship between customized services and growth of tenants. Then, three paths of the theoretical model have been measured by means of the structural model. At the same time, the t-test and the Sobel test are employed to justify their significance. If we only contemplate customized incubation services and growth of tenants, they are positively correlative. On the other hand, if referring to the role of social networking services in this process, we disclosed that not only customized incubation services positively impact behavior of social networking services, but also behavior of social networking services positively facilitates the growth of tenants; at the same time, the customized incubation services exhibit no direct impact on the growth of tenants otherwise. It witnesses that the behavior of social networking services fully mediates the relationship between customized services and the growth of tenants. As a result, we should promote incubation services to be deeply embedded in social networking services; incubator management should even improve the capability to deal with big data embedded in social networking services. In additional, entrepreneurial ecosystems should be also embedded in social networks intensively.

Structure-property relations of liquid crystalline polymers

1987 ◽  
Vol 45 ◽  
pp. 460-463
Author(s):  
Linda C. Sawyer
Keyword(s):  
Solid State ◽  
Liquid Crystalline ◽  
Structural Model ◽  
Crystalline Polymer ◽  
Liquid Crystalline Polymers ◽  
Mechanical Anisotropy ◽  
Structure Property ◽  
Preparation Methods ◽  
Crystalline Polymers ◽  
Extended Chain

Recent liquid crystalline polymer (LCP) research has sought to define structure-property relationships of these complex new materials. The two major types of LCPs, thermotropic and lyotropic LCPs, both exhibit effects of process history on the microstructure frozen into the solid state. The high mechanical anisotropy of the molecules favors formation of complex structures. Microscopy has been used to develop an understanding of these microstructures and to describe them in a fundamental structural model. Preparation methods used include microtomy, etching, fracture and sonication for study by optical and electron microscopy techniques, which have been described for polymers. The model accounts for the macrostructures and microstructures observed in highly oriented fibers and films.Rod-like liquid crystalline polymers produce oriented materials because they have extended chain structures in the solid state. These polymers have found application as high modulus fibers and films with unique properties due to the formation of ordered solutions (lyotropic) or melts (thermotropic) which transform easily into highly oriented, extended chain structures in the solid state.

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