Frequency doubler with phase selection of ribbon beam electrons

Author(s):  
V. S. Merzlov ◽  
A. Ch. Khatagov ◽  
I. V. Kryzhanovskaya
Metals ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 84
Author(s):  
Xiaohong Wang ◽  
Zhipeng Chen ◽  
Duo Dong ◽  
Dongdong Zhu ◽  
Hongwei Wang ◽  
...  

The phase selection of hyper-peritectic Al-47wt.%Ni alloy solidified under different pressures was investigated. The results show that Al3Ni2 and Al3Ni phases coexist at ambient pressure, while another new phase α-Al exists simultaneously when solidified at high pressure. Based on the competitive growth theory of dendrite, a kinetic stabilization of metastable peritectic phases with respect to stable ones is predicted for different solidification pressures. It demonstrates that Al3Ni2 phase nucleates and grows directly from the undercooled liquid. Meanwhile, the Debye temperatures of Al-47wt.%Ni alloy that fabricated at different pressures were also calculated using the low temperature heat capacity curve.


2021 ◽  
Vol 56 (4) ◽  
pp. 2000187
Author(s):  
Huifeng Hu ◽  
Fugen Liang ◽  
Haidong Zhu ◽  
Xiumei Zhang ◽  
Kecong Cui ◽  
...  

2016 ◽  
Vol 52 (5) ◽  
pp. 2957-2963 ◽  
Author(s):  
Yihui Jiang ◽  
Dan Li ◽  
Shuhua Liang ◽  
Juntao Zou ◽  
Feng Liu

2020 ◽  
Vol 21 (1) ◽  
pp. 683-691
Author(s):  
Jing Zhang ◽  
Lijun Wang ◽  
Wenjun Zhang ◽  
Christine V. Putnis

2016 ◽  
Vol 37 (1) ◽  
pp. 55-66 ◽  
Author(s):  
Piotr Sawicki ◽  
Marcin Kiciński ◽  
Szymon Fierek

This paper deals with the problem of selection the most suitable trip-modelling tool (TMT), which is a part of the more complex integrated transport planning system (ITPS) at the regional scale. Since an application of TMT is not autonomous and several different users exist the selection problem is not a trivial. In this paper, an original five-phase selection procedure is presented. The first phase consists in specifica¬tion of both, detailed expectations of all identified users and technical requirements of ITPS. Second phase deals with research on available TMT while a third one is concentrated on defining a comprehensive set of criteria. In this phase critical criteria as well as selection criteria are defined. First one is utilised to eliminate unacceptable TMTs in phase four and second one to evaluate and select most adequate TMT in phase five. In the paper an exemplary application of this procedure is presented. The authors have defined 2 critical criteria and a set of 19 selection criteria. The last one is divided into 3 main subsets, i.e. functional, technical and financial contexts of selection process. All the selection criteria are characterised by 43 sub-criteria and some of them are more detailed extended. Using this procedure 3 out of 6 alternative TMTs including Emme, Aimsun and Visum have been initially accepted and next evaluated. Finally, Visum has been selected and recommended for application into ITPS.


Energies ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 545 ◽  
Author(s):  
Chia-Sheng Tu ◽  
Ming-Tang Tsai

This paper presents an efficient strategy for transformer planning to reduce the system losses by means of transformer rearrangement. The customer connected to the distribution transformer are first investigated by the field survey, and the loads of the various customers are collected from the customer information system (CIS) and distribution database system (DAS) to derive their load patterns. The objective function is to minimize the total line loss in the 24 intervals. An improved bacterial foraging algorithm (IBFO) is proposed herein to find the optimal phase combination of distribution transformers to minimize the total line loss by considering operating constraints. A three-phase load flow program with Eeuivalent current injection (ECT) is used to solve the total line loss and system unbalance factor on a Taipower distribution system. The results can help operators not only perform the proper installation phase selection of distribution transformers, but also reduce the system losses, decrease the system unbalance factor, and improve the voltage profiles of the buses.


1990 ◽  
Vol 29 (32) ◽  
pp. 4772 ◽  
Author(s):  
Philippe Refregier ◽  
Jean-Pierre Huignard

1981 ◽  
Vol 46 (2) ◽  
pp. 153-163 ◽  
Author(s):  
Sherman Fong ◽  
Robert I. Fox ◽  
Jean E. Rose ◽  
Junda Liu ◽  
Constantine D. Tsoukas ◽  
...  

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