Structure Improvement and Performance Analysis of a Coupling Component for Board-Level Photoelectric Interconnection

2014 ◽  
Vol 886 ◽  
pp. 361-364
Author(s):  
Jin Bo Yan ◽  
Zhao Hua Wu ◽  
De Jin Yan

The paper took a structure improvement of a coupling component for board-level photoelectric interconnection and analyzed its coupling efficiency by stimulation. Firstly, it briefly introduced the commonly used coupling components, analyzed the coupling performance, and selected a coupling component to improve its structure. Secondly, it introduced methods to improve coupling components, such as 45-degree gold-plated cross section, and manufacturing ball lens on both the top and the bottom to increase the coupling efficiency of coupling components. Finally, the optical simulation software Advanced Systems Analysis Program was applied to analyze the coupling efficiency. The coupling efficiency of improved coupling component was increased. The analyses and results are significant in engineering application and guiding.

2009 ◽  
Vol 417-418 ◽  
pp. 845-848 ◽  
Author(s):  
Chang Wang Yan ◽  
Jin Qing Jia ◽  
Ju Zhang

In order to investigate the seismic damage and performance of steel reinforced ultra high strength concrete composite joint subjected to reversal cycle load, six interior strong-column-weak-beam joint specimens were tested with various axial load ratio and volumetric stirrup ratio. A discussion on the crack mode and ductility was presented. It was found that all joint specimens failed in bending with a beam plastic hinge in a ductile manner, with crack propagation different from the weak-column-strong-beam joint. The experimental results indicated that test parameters of the steel reinforced ultra high strength concrete composite joint with good seismic performance may be referred for engineering application.


1977 ◽  
Vol 21 (6) ◽  
pp. 545-547
Author(s):  
Tyler Blake

With the advent of voting machines and computers, the voting process has evolved into a complex man-machine system. However, to date no comprehensive human factors analysis of the voting process has been conducted. A systems analysis of the voting process yielded four major functions which impact critically on voter behavior and performance: (a) Design of voting instructions (b) Display of crucial voting information (c) Human engineering of voting equipment and procedures (d) Distribution of voting machines and personnel across and within voting districts. Some critical aspects of each area are discussed, and some additional points of interest to human factors specialists interested in researching this area are mentioned.


2015 ◽  
Vol 3 ◽  
pp. 137-149 ◽  
Author(s):  
R.M.S.F. Almeida ◽  
P. Paula ◽  
A. Santos ◽  
N.M.M. Ramos ◽  
J.M.P.Q. Delgado ◽  
...  

This work consisted of two main lines of research: one of a literature review and other of simulation. In the first part, a modular constructive system based on gypsum blocks is presented. This constructive system reduces the manpower considerably, the time of execution and the final costs of construction. However, the durability assessment should be analysed but first its implementation and performance along the country must analysed.In this work a preliminary experimental characterization of the thermal conductivity, vapour permeability and water absorption coefficient of two different samples of gypsum plasters from the northeast Brazil (plaster pole of Araripe, Pernambuco) was performed. The experimental and analytical procedures followed either international standards or well-established methodologies, supporting the analysis of gypsum walls hygrothermal behaviour. The measured properties were adopted as inputs to hygrothermal simulation software and the analysis of gypsum based exterior walls was conducted for different climate zones and exposure conditions. The study demonstrates the durability issues that may arise in each location, due to differences in hygrothermal action.The other simulation part included hygrothermal advanced modelling, using the EnergyPlus software. The numerical results carried out allow a discussion over the interior comfort and durability of this modular constructive system. In this paper, the computer simulation model and the results of a parametric analysis of the dwelling performance on the eight climatic regions defined in Brazilian regulations are presented. The model was validated using the in situ measurements of air temperature.


2012 ◽  
Vol 20 (2) ◽  
pp. 89-114 ◽  
Author(s):  
H. Carter Edwards ◽  
Daniel Sunderland ◽  
Vicki Porter ◽  
Chris Amsler ◽  
Sam Mish

Large, complex scientific and engineering application code have a significant investment in computational kernels to implement their mathematical models. Porting these computational kernels to the collection of modern manycore accelerator devices is a major challenge in that these devices have diverse programming models, application programming interfaces (APIs), and performance requirements. The Kokkos Array programming model provides library-based approach to implement computational kernels that are performance-portable to CPU-multicore and GPGPU accelerator devices. This programming model is based upon three fundamental concepts: (1) manycore compute devices each with its own memory space, (2) data parallel kernels and (3) multidimensional arrays. Kernel execution performance is, especially for NVIDIA® devices, extremely dependent on data access patterns. Optimal data access pattern can be different for different manycore devices – potentially leading to different implementations of computational kernels specialized for different devices. The Kokkos Array programming model supports performance-portable kernels by (1) separating data access patterns from computational kernels through a multidimensional array API and (2) introduce device-specific data access mappings when a kernel is compiled. An implementation of Kokkos Array is available through Trilinos [Trilinos website, http://trilinos.sandia.gov/, August 2011].


Author(s):  
Ismi Zulaikha ◽  
Parmin Parmin

This study aims to examine and analyze the effect of workload and emotional intelligence on performance with job satisfaction as an intervening variable. This research was conducted at the District Panwaslu Secretariat in Kebumen Regency. Data collection was carried out through distributing questionnaires to 52 civil servants at the Panwascam Secretariat in Kebumen District. The analysis technique used is using the SPSS Version 22 analysis program for Windows. The results obtained in the study showed that workload and emotional intelligence variables had a positive and significant effect on job satisfaction. The workload variable on performance has a negative and significant effect on performance, while the emotional intelligence variable has a positive and significant impact on performance, and the variables of job satisfaction and performance are positive and significant. The classic assumption test in testing and proving the research hypothesis was obtained by analysis showing that workload contributed positively to satisfaction, emotional intelligence contributed to job satisfaction, workload contributed negatively to performance, emotional intelligence contributed to performance and satisfaction contributions work on the performance of civil servants at the Panwascam Secretariat in Kebumen Regency.


Author(s):  
Nuru I. Sarkar ◽  
Kashif Nisar ◽  
Layangi Babbage

The Advanced Network Technologies is research that investigates technology(s) behind today’s modern networks and network infrastructures. One part of this technology being Asynchronous Transfer Mode (ATM). A technology commonly in place in networks all around the world today. This paper focuses on ATM. Dubbed “Modelling and Performance Studies of ATM Networks”; this research seeks to look at and into the “impact of application segment length on the performance of an ATM network” and the “impact of traffic type data on the performance of an ATM network”. To be able to examine an ATM network, the authors need to be able to simulate a network. Thus, for this research, they have used the OPNET Modeler 14.0 Simulation software to create a network model that represents a ATM network. By actually simulating an ATM network at AUT University New Zealand, the authors can therefore change certain variables, and observe the effects the changes have on performance. As stated, one of the impacts that will be explored is the effect that application segment length has on an ATM network. Thus, one variable that will be changed in the authors’ simulation is the segment length. This is the length of each packet segment that is sent through the network for a particular traffic type. The second impact to be inspected is the impact of different traffic types on an ATM network. This network model is based on a campus network. An Application Configuration is setup with default parameters which specify 8 common applications used. Among them the ones that the authors will focus on are VOIP, Video and FTP. A Profile Configuration is setup that will define the 3 applications stated above. A fixed node model of 100BaseT will specify the profile configuration for each scenario and the number of work stations of each scenario.


2010 ◽  
Vol 4 (4) ◽  
pp. 256-257 ◽  
Author(s):  

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