scholarly journals Polarization induced reconfigurable multiple OAM vortex waves through a composite meta-surface beam former

2021 ◽  
Author(s):  
Chenguang Gu ◽  
Rui Yang ◽  
Yachao Li
Keyword(s):  
Surface Beam

Freeform Surface Beam Splitter for Discrete Spot Array with Prescribed Energy Proportion

2020 ◽  
Vol 40 (17) ◽  
pp. 1722004
Author(s):  
司佳 Si Jia ◽  
冯泽心 Feng Zexin ◽  
程德文 Cheng Dewen ◽  
王涌天 Wang Yongtian
Keyword(s):  
Beam Splitter ◽  
Freeform Surface ◽  
Surface Beam ◽  
Spot Array

scholarly journals Recent Progress in Gas-Surface Beam Work

Shinku ◽  
1967 ◽  
Vol 10 (7) ◽  
pp. 240-250
Author(s):  
Isao KUSUNOKI
Keyword(s):  
Recent Progress ◽  
Surface Beam

Design and Preparation of Continuous Surface Beam Splitter with High Diffraction Efficiency

2019 ◽  
Vol 48 (7) ◽  
pp. 722002
Author(s):  
刘文静 LIU Wen-jing ◽  
庞辉 PANG Hui ◽  
曹阿秀 CAO A-xiu ◽  
吴育娟 WU Yu-juan ◽  
史立芳 SHI Li-fang ◽  
...  
Keyword(s):  
Diffraction Efficiency ◽  
Beam Splitter ◽  
Continuous Surface ◽  
High Diffraction Efficiency ◽  
Surface Beam ◽  
High Diffraction

Analisis Kesalahan Siswa Kelas Dalam Menyelesaikan Soal Cerita Ditinjau Dari Perbedaan Gender

2018 ◽  
Vol 4 (1) ◽  
pp. 80-87
Author(s):  
Slamet Mulyadi
Keyword(s):  
Mathematical Model ◽  
Qualitative Research ◽  
Gender Difference ◽  
Woman Student ◽  
Difference Type ◽  
Student Error ◽  
Beam Surface ◽  
Final Answer ◽  
The Mathematical Model ◽  
Surface Beam

Lack of understanding of the material and cannot link the problem to the mathematical model causes the mistakes made by the students while working on the essay. This study aimed to describe the type of student error in solving geometry essay of gender difference. Type of this study is descriptive qualitative research. The result of the research showed the type  mistakes of male and woman  student in solving geometry essay include : 1) fact, ie: wrote down incomplete  information from the problem, wrong in writing the unit of surface area of the beam. 2) Concept, ie: students were wrong in understanding the concept of unit, wrong in understanding the concept of the beam. 3) Principle, ie: the student is wrong in determining the final answer, the student didn’t write the conclusion at the end of the solution, wrong in using the surface beam surface formula. 4) Operation, ie:  students  made error in calculating.

scholarly journals Modeling and Calibrating the Ground-Surface Beam Pointing of GEO Satellite

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 121897-121906
Author(s):  
Chenhua Sun ◽  
Huijuan Jiang ◽  
Jinsong Zhang ◽  
Yiwen Tao ◽  
Bin Li ◽  
...  
Keyword(s):  
Ground Surface ◽  
Geo Satellite ◽  
Surface Beam
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