The Key Techniques on Micro-Assembly of Micro-Radio Modules

2012 ◽  
Vol 229-231 ◽  
pp. 1539-1542
Author(s):  
Wei Li ◽  
Jie Wang
Keyword(s):  
High Performance ◽  
Processing Technologies ◽  
Micro Assembly ◽  
Important Processing ◽  
Assembly Technology ◽  
Key Techniques ◽  
Micro Radio

Micro-assembly technology is one of important processing technologies to realize electronic equipments miniature and light with high performance and reliability. The key techniques in micro-assembly of micro-radio modules were discussed in this paper with analysis of their characteristics. Some suggestions in application of micro-assembly were pointed out in the end of this text.

scholarly journals Geospatial Information Processing Technologies

2019 ◽  
pp. 191-227
Author(s):  
Zhenlong Li ◽  
Zhipeng Gui ◽  
Barbara Hofer ◽  
Yan Li ◽  
Simon Scheider ◽  
...  
Keyword(s):  
Information Processing ◽  
High Performance ◽  
Scientific Discovery ◽  
Geospatial Data ◽  
Geospatial Information ◽  
Processing Technologies ◽  
Digital Earth ◽  
Wide Range ◽  
Efficient Processing ◽  
Key Techniques

Abstract The increasing availability of geospatial data offers great opportunities for advancing scientific discovery and practices in society. Effective and efficient processing of geospatial data is essential for a wide range of Digital Earth applications such as climate change, natural hazard prediction and mitigation, and public health. However, the massive volume, heterogeneous, and distributed nature of global geospatial data pose challenges in geospatial information processing and computing. This chapter introduces three technologies for geospatial data processing: high-performance computing, online geoprocessing, and distributed geoprocessing, with each technology addressing one aspect of the challenges. The fundamental concepts, principles, and key techniques of the three technologies are elaborated in detail, followed by examples of applications and research directions in the context of Digital Earth. Lastly, a Digital Earth reference framework called discrete global grid system (DGGS) is discussed.

Particle Temperature Measurements by Spectroscopic and Two-Wavelength Streak Imaging

2000 ◽  
Author(s):  
J.E. Craig ◽  
R.A. Parker ◽  
F.S. Biancaniello ◽  
S.D. Ridder ◽  
S.P. Mates
Keyword(s):  
Thermal Spray ◽  
High Performance ◽  
Particle Temperature ◽  
Ceramic Powder ◽  
Spray Forming ◽  
Temperature Measurements ◽  
Sensor Technology ◽  
Depth Of Field ◽  
Velocity Change ◽  
Processing Technologies

Abstract A two-wavelength particle imaging pyrometer has been developed to measure temperature, velocity and size of individual particles within a field of view and a depth of field that spans the entire particle stream in most thermal spray devices. The pyrometer provides continuous updates to particle condition profiles, histograms and correlations. The software locates particle streaks, determines the intensity ratio and dimensions of each streak, and calculates the particle temperature, velocity and size. Many forms of advanced materials processing technologies, such as thermal spray, spray-forming and atomization processes, have considerable need of process control sensor technology. These measurements provide the basis for application of the pyrometer to many of these processes. Particle temperature measurements of plasma-sprayed ceramic powder were obtained using a spectrometer and the pyrometer. Comparisons of the measurements show that the vision-based pyrometer has excellent accuracy. The standard deviation of the measurements was 40 K or about 1.3 %. Additional pyrometer measurements were used to determine its minimum detectable temperature and velocity change, which were 12.4 K and 2.77 m/s, or 0.4 % and 1.5 %, respectively. The vision-based particle sensor can now be applied to high performance control strategies to provide stable particle temperatures and velocities over long duration plasma spray processes.

An Innovative Approach to Enhance Collaboration in the Biomedical Field

2014 ◽  
pp. 979-991
Author(s):  
Georgia Tsiliki ◽  
Manolis Tzagarakis ◽  
Spyros Christodoulou ◽  
Sophia Kossida ◽  
Nikos Karacapilidis
Keyword(s):  
Web 2.0 ◽  
High Performance ◽  
Large Data ◽  
User Generated Content ◽  
Preliminary Evaluation ◽  
Processing Technologies ◽  
Entire Life ◽  
Entire Life Cycle ◽  
Biomedical Field ◽  
Performance Computing

Web 2.0 technologies applications have been suggested as potential enablers for the accumulation of multidisciplinary knowledge, for instance in the biomedical field. Such applications offer new ways of creating, collaborating and sharing user-generated content online. Under this context, the authors' present an innovative Web 2.0 approach that exploits prominent high-performance computing paradigms and large data processing technologies to meaningfully search, analyze and aggregate data existing in diverse, extremely large and rapidly evolving sources. The underlying tool is designed to support the entire life cycle of a biomedical collaboration, with specifically implemented services. Preliminary evaluation results are also presented and discussed.

Facilitating and Augmenting Collaboration in the Biomedical Domain

2012 ◽  
Vol 1 (1) ◽  
pp. 52-65 ◽  
Author(s):  
Nikos Karacapilidis ◽  
Manolis Tzagarakis ◽  
Spyros Christodoulou ◽  
Georgia Tsiliki
Keyword(s):  
High Performance ◽  
Large Data ◽  
Biomedical Domain ◽  
Data Types ◽  
Processing Technologies ◽  
Data Intensive ◽  
Decision Points ◽  
Manageable Level ◽  
Performance Computing ◽  
Associated Data

This paper reports on a Web 2.0 tool that aims to facilitate and augment collaboration and decision making in data-intensive and cognitively-complex biomedical settings. The proposed tool exploits prominent high-performance computing paradigms and large data processing technologies to meaningfully search, analyze and aggregate data existing in diverse, extremely large and rapidly evolving sources. It can be viewed as an innovative workbench incorporating and orchestrating a set of interoperable services that reduce the data-intensiveness and complexity overload at critical decision points to a manageable level, thus permitting stakeholders to be more productive and concentrate on creative activities. Through a particular collaboration scenario, we explore various possibilities and challenges of managing biomedical collaboration with the use of the proposed tool. Much attention is given at the increase of volume, rate of production and complexity of the associated data types.

Nanoceramic Processing for High-Power Multi-channel Electron Multiplier in Low Temperature Cofire Ceramic (LTCC)

2007 ◽  
Vol 4 (3) ◽  
pp. 93-98 ◽  
Author(s):  
Feng Zheng ◽  
W. Kinzy Jones ◽  
Wenzhong Wu ◽  
Raghunandan Seelaboyina
Keyword(s):  
Electrophoretic Deposition ◽  
High Performance ◽  
Secondary Electron ◽  
Secondary Electron Emission ◽  
Positive Temperature Coefficient ◽  
Gain Factor ◽  
Positive Temperature ◽  
Electron Multiplier ◽  
Processing Technologies ◽  
The Individual

Nanoceramic processing technologies are brought together with standard LTCC materials to demonstrate a dynode structured electron multiplier with integrated cooling. Process developments include the integration of numerous components, including an embedded passive, high-density interconnect, and high-performance thermal management system. Enhanced processing capabilities utilize nanoparticles to control sintering kinetics. Cofirable thick Ag tapes have been demonstrated that allow multilayer structures to include a thick (up to 0.5mm) solid Ag layer. The development of 3-D cavities using fugitive inserts have produced meso- and micro-scale channels, with X-Y-Z channels of 50 μm diameter demonstrated. Nano-sized MgO, processed using electrophoretic deposition, has been developed for a secondary electron emitter (SEE) with a gain factor of 2.0. To minimize thermal run-away and, subsequently, thermal failure, a positive temperature coefficient (PTC) resistor system compatible with LTCC processing is being developed to reduce supplied power to the individual multiplier structures to control localized heating. In this study the synthesis of nanostructure MgO is shaped by electrophoretic deposition that consists of the deposition of particles at dynodes submerged in a solution of magnesium methoxide. Charged particles of MgO are suspended in the solution and forced to move toward the dynode (which bears the opposite charge) by applying an electric field, thus forming a thin coating of collected MgO particles on the dynode. Different annealing conditions are used to optimize the microstructure and secondary electron emission (SEE) of the deposited materials.

Study on High-Performance Simulation Computer for Large-Scale System of Systems Simulation

2014 ◽  
Vol 548-549 ◽  
pp. 1311-1318
Author(s):  
Zhi Qiang Zhao ◽  
Jia Xin Hao
Keyword(s):  
High Performance ◽  
Large Scale ◽  
Engineering Application ◽  
System Of Systems ◽  
Simulation Framework ◽  
Performance Simulation ◽  
Overall Performance ◽  
Systems Simulation ◽  
Key Techniques ◽  
Equipment System

The high-performance parallel computing (HPPC) has a better overall performance and higher productivity, for a generical large-scale army equipment system of systems (AESoS) simulation, and the runtime efficiency can be multiplied several tenfold to several hundredfold. The requirement analysis of simulation framework of AESoS based on HPPC was proposed. After the simulation framework of AESoS based on HPPC and its key techniques were discussed, the simulation framework of AESoS Based HPPC was designed. it is of great significance to offer certain references for the engineering application in the simulation fields of AESoS based on HPPC.

Key Techniques and Advances of Grinding/Milling Spiral Flutes on NC Machines with Multi-Axis Linkage

2008 ◽  
Vol 392-394 ◽  
pp. 1019-1024 ◽  
Author(s):  
Chun Jiang Xiang ◽  
Li Zhi Gu
Keyword(s):  
Mathematical Modeling ◽  
Error Compensation ◽  
High Performance ◽  
Automatic Generation ◽  
Error Modeling ◽  
The Real ◽  
Nc Code ◽  
Tool Interference ◽  
Key Techniques

Introduced systematically the forming principles and mathematical modeling of grinding/ milling spiral flutes with numeric control machines, overviewed the functions of multi-axis linkage and the determination technique of the number of the linkage axes, discussed the conversion technique of NC—STEP-NC code in programming with EXPRESS, presented advances of controlling systems with high performance. Much attention was paid to the explanation of the error modeling and the tool interference in the real machining with the error-compensation techniques. Trends were envisioned on key technique study of the forming principles for the spatial spiral flutes, function of multi-axes, tool interference in the real machining and simulation of the operation processing, as well as automatic generation of NC codes and the connection /compatibility of the codes with the mainline NC systems, in future.

Approaches to the Design and Processing of Novel Titanium Alloys

2007 ◽  
Vol 29-30 ◽  
pp. 127-130
Author(s):  
Colleen J. Bettles ◽  
Rimma Lapovok ◽  
H.P. Ng ◽  
Dacian Tomus ◽  
Barry C. Muddle
Keyword(s):  
Titanium Alloys ◽  
High Performance ◽  
Powder Processing ◽  
Low Cost ◽  
Cost Effective ◽  
Processing Technologies ◽  
Shape Processing ◽  
New Processing ◽  
The Cost ◽  
Processing Techniques

The range of commercial titanium alloys available is currently extremely restricted, with one alloy (Ti-6Al-4V), and derivatives of it, accounting for a very large proportion of all applications. High performance alloys are costly to fabricate and limited to low-volume applications that can sustain the cost. With the emergence of new processing technologies that promise to reduce significantly the cost of production of titanium metal, especially in powder form, there is an emerging imperative for cost-effective near net shape powder processing techniques to permit the benefit of reduced metal cost to be passed on to higher-volume applications. Equally, there is a need for the design and development of new alloys that are intrinsically low-cost and lend themselves to fabrication by novel cost-effective net shape processing. The approaches that might be used to select, design and process both conventional alloys and novel alloy systems will be reviewed, with a focus on innovation in design of low-cost alloys amenable to new processing paths and increasingly tolerant of variability in composition.

Manipulation Mechanisms for Micro-Assembly Technology

2005 ◽  
Vol 502 ◽  
pp. 327-334
Author(s):  
Kunio Takahashi
Keyword(s):  
Adhesion Force ◽  
Force Measurement ◽  
Continuum Approximation ◽  
Theoretical Understanding ◽  
Elastic Continuum ◽  
Micro Assembly ◽  
Capillary Method ◽  
Interfacial Energies ◽  
Assembly Technology ◽  
Basic Approaches

Author has been working about mechanisms of some manipulation methods for micro-assembly, i.e., a mechanical method, an electro-adhesive method, and a capillary method. For the purpose of optimization and breakthrough of the micro-assembly technology, theoretical understanding of adhesion phenomenon is essential, because the adhesional force is proportional to the size of objects meanwhile gravitational force is proportional to the third power of it. Consequently the adhesion phenomenon is no more negligible for the smaller objects usually less than 1 mm, e.g., micro-objects. Author will introduce our analyses about the manipulation mechanisms and related basic approaches to the adhesion phenomena including an adhesion force measurement in Auger electron spectroscope, an elastic continuum approximation approach using contact mechanics, a quantum mechanics approach for surface energy, a molecular mechanics approach for surface and interfacial energies. Also it will be expressed that our data base project for the surface and interfacial energies is based on these basic approaches for the purpose of optimization and/or breakthrough of the micro-assembly technology.

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