Results 221 to 230 of about 2,090,153 (264)
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Experiments with Directivity Steering for Fading Reduction*

Bell System Technical Journal, 1935
Short-wave fading is largely due to phase interference between multiple path signals of varying path length. Fortunately, stable angular differences usually exist between these paths at the point of reception. It is therefore desirable to employ antenna directivity which is "steerable" and sufficiently sharp to accept only one of the several paths in ...
E. Bruce, A.C. Beck
openaire   +1 more source

Problems in direct reduction

The Canadian Journal of Chemical Engineering, 1962
AbstractThe status of direct reduction processes for iron production is briefly discussed. More extensive commercial plant operation of these processes appears to depend in part on solution to problems of scale‐up. These problems center around the reactors used, which are either rotary kilns, shaft kilns, or fluid bed units.
openaire   +1 more source

A comparison of self-directed and therapist-directed practice for fear reduction

Behaviour Research and Therapy, 1980
Abstract Various amounts of self-directed and therapist-directed practice were evaluated in reducing fear of snakes. The conditions included an exclusively self-directed condition, a predominantly self-directed condition, a predominantly therapist-directed condition, and an exclusively therapist-directed condition.
T P, O'Brien, J E, Kelley
openaire   +2 more sources

Reduction of Storage Fragmentation On Direct Access Devices

IBM Journal of Research and Development, 1979
A technique is described for partially reorganizing the contents of disk storage so as to reduce the level of fragmentation. The method entails choosing that fraction of the contents which is estimated to have the greatest impact on the free space distribution, followed by the relocation of these data to more favorable locations, subject to the system ...
Peter A. Franaszek, James P. Considine
openaire   +1 more source

Prototype reduction based on Direct Weighted Pruning

Pattern Recognition Letters, 2014
Instance-based learning methods often suffer from problems related to high storage requirements, large computational costs for searching through the stored instances to find the ones most similar to the queries, and also sensitivity to noisy samples.
Konstantinos Nikolaidis   +2 more
openaire   +2 more sources

Direct Posterior Reduction and Fixation

Neurosurgery, 2011
Chao, Wang, Shenglin, Wang
openaire   +2 more sources

Direct molten-salt electro-reduction of CO in porous electrodes

Chemical Engineering Journal, 2023
Peilin Wang, Dihua Wang, Kaifa Du
exaly  

Direct Reduction Ironmaking

2023
Chu Mansheng, Xu Kuangdi
openaire   +1 more source

The Direct Reduction of Iron Ore with Hydrogen

Sustainability, 2021
Jan Baeyens, Huili Zhang, Yimin Deng
exaly  

DIRECT REDUCTION AND FEED MATERIAL FOR DIRECT REDUCTION

2022
HIEBL BERNHARD   +3 more
openaire   +1 more source

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