Results 151 to 160 of about 664,250 (197)
Some of the next articles are maybe not open access.
Error-Controlled Lossy Compression Optimized for High Compression Ratios of Scientific Datasets
2018 IEEE International Conference on Big Data (Big Data), 2018Today’s scientific simulations require a significant reduction of the data size because of extremely large volumes of data they produce and the limitation of storage bandwidth and space. If the compression is set to reach a high compression ratio, however, the reconstructed data are often distorted too much to tolerate.
Xin Liang +7 more
openaire +1 more source
Computation of compressible flows with high density ratio and pressure ratio
Applied Mathematics and Mechanics, 2008zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire +2 more sources
High Compression Ratio Engine Operation on Biomass Producer Gas
SAE Technical Paper Series, 2011<div class="section abstract"><div class="htmlview paragraph">Experimental investigations have been conducted with two identical small scale SI gas engines gen-sets operating on biomass producer gas from thermal gasification of wood. The engines where operated with two different compression ratios, one with the original compression ratio ...
Jesper Ahrenfeldt +2 more
openaire +1 more source
A concept of very high ratio gas compression device
Journal of Fusion Energy, 2016A very high ratio gas compression device based on liquid metal conical implosion is described in this paper, which can reach a compression ratio up to 109–12. This device can produce extremely high density, high pressure, and high temperature, thermally equilibrated states by rapid but continuous compression of gaseous materials.
Cheng Li, Jianguo Chen, Yian Lei
openaire +1 more source
Vehicle Fuel Economy-High Compression Ratio and Supercharging Compared
SAE Technical Paper Series, 1984<div class="htmlview paragraph">A research programme has been carried out to investigate the fuel economy potential of a number of engine concepts both on the testbed and in a vehicle. A 1.5 litre high compression ratio engine with a High Ratio Compact Chamber (HRCC) and a mechanically supercharged 1.3 litre engine were compared with a ...
M. T. Overington, C. D. de Boer
openaire +1 more source
Diesel Combustion at High MEP with Low Compression Ratio
SAE Technical Paper Series, 1966<div class="htmlview paragraph">Very high mean effective pressures can be obtained from the diesel engine with limited maximum cylinder pressures by using a large clearance volume, that is, a low compression ratio, at high loads. The resultant low compression temperature is an added advantage as far as power production is concerned, but gives ...
W. P. Mansfield, W. S. May
openaire +1 more source
Improving Diagnosis Resolution and Performance at High Compression Ratios
2018 IEEE International Test Conference (ITC), 2018Recent innovations in Test Compression are enabling implementation of very high compression ratios. This paper analyzes the impact of high compression on resolution and performance of conventional diagnosis methods. The diagnosis resolution is observed to be unaffected by increasing the compression ratio if there are sufficient failures and patterns ...
Sameer Chillarige +5 more
openaire +1 more source
Novel Method for QDDFS with Super High Compression Ratio
2006 8th International Conference on Solid-State and Integrated Circuit Technology Proceedings, 2006A novel method for quadrature direct digital frequency synthesizer with ten millions compression ratio, which is based on the Taylor expansions of sine and cosine, is firstly put forward. The traditional DDFS architecture is changed while accumulator is replaced by phase tipster in this system.
Qiao Xiaolin +3 more
openaire +1 more source
High Compression Rate and Ratio Using Predefined Huffman Dictionaries
2013 Data Compression Conference, 2013Current Huffman coding modes are optimal for a single metric: compression ratio (quality) or rate (performance). We recognize that real life data can usually be classified to families of data types and thus the Huffman dictionary can be reused instead of recalculated.
A. Golander +4 more
openaire +1 more source
Quadrature Direct Digital Frequency Synthesizer with High Compression Ratio
2006 International Conference on Communication Technology, 2006This paper presents a new QDDFS architecture with high compression ratio, which based on the principles of non-linear approach and trigonometric approximation. The principles have been analyzed systemically and all the parameters have been optimized. A high compression ratio of 762 at 93.5 dBc in a 16 bit system. The architecture is realized by Quartus-
Zhao Zhanfeng +2 more
openaire +1 more source