LED high-beam module design for automotive headlight

2021 ◽  
Author(s):  
Liping Wang ◽  
Ping Su ◽  
Jianshe Ma ◽  
Jianwei Huang
Keyword(s):  
High Beam ◽  
Module Design

LVSEM: Past Present and Future

1990 ◽  
Vol 48 (1) ◽  
pp. 364-365
Author(s):  
James B. Pawley
Keyword(s):  
Field Emission ◽  
Line Width ◽  
Time Scales ◽  
Silicon Oxide ◽  
Beam Current ◽  
High Brightness ◽  
High Beam ◽  
Fixed Charges ◽  
Beam Voltage ◽  
Deposited Metal

Past: In 1960 Thornley published the first description of SEM studies carried out at low beam voltage (LVSEM, 1-5 kV). The aim was to reduce charging on insulators but increased contrast and difficulties with low beam current and frozen biological specimens were also noted. These disadvantages prevented widespread use of LVSEM except by a few enthusiasts such as Boyde. An exception was its use in connection with studies in which biological specimens were dissected in the SEM as this process destroyed the conducting films and produced charging unless LVSEM was used.In the 1980’s field emission (FE) SEM’s came into more common use. The high brightness and smaller energy spread characteristic of the FE-SEM’s greatly reduced the practical resolution penalty associated with LVSEM and the number of investigators taking advantage of the technique rapidly expanded; led by those studying semiconductors. In semiconductor research, the SEM is used to measure the line-width of the deposited metal conductors and of the features of the photo-resist used to form them. In addition, the SEM is used to measure the surface potentials of operating circuits with sub-micrometer resolution and on pico-second time scales. Because high beam voltages destroy semiconductors by injecting fixed charges into silicon oxide insulators, these studies must be performed using LVSEM where the beam does not penetrate so far.

Monolithic Module Design and Behavior Improvement of Large Area Dye-sensitized Solar Cell

2011 ◽  
Vol 26 (12) ◽  
pp. 1261-1265 ◽  
Author(s):  
Hui MA ◽  
Zhi-Yong LIU ◽  
Yu-Ming LU ◽  
Xiao-Yan JIN ◽  
Chuan-Bing CAI
Keyword(s):  
Solar Cell ◽  
Dye Sensitized Solar Cell ◽  
Large Area ◽  
Module Design ◽  
Dye Sensitized ◽  
And Behavior

Study on Common Ground Testing Platform Technology for Telemetry Core Equipment

2012 ◽  
Vol 220-223 ◽  
pp. 1472-1475
Author(s):  
Qiu Lin Tan ◽  
Xiang Dong Pei ◽  
Si Min Zhu ◽  
Ji Jun Xiong
Keyword(s):  
Data Exchange ◽  
Common Ground ◽  
Digital Signal ◽  
Test System ◽  
Automatic Test System ◽  
Module Design ◽  
The Status ◽  
Output Module ◽  
And Performance ◽  
Hardware Circuit

On the basis of automatic test system of the status in domestic and foreign, by analysis of the various functions and performance of the integrated test system, a design of the integrated test system is proposed, FPGA as the core logic controller of the hardware circuit. The system of the hardware design include: digital signal source output modules, analog output module and PCM codec module. Design of hardware circuit are mainly described. In addition, a detailed analysis of some key technologies in the design process was given. Overall, its data exchange with host computer is through the PCI card, data link and bandwidth can be expanded in accordance with the actual needs. The entire system designed in the modular principle, which has a strong scalability.

scholarly journals Development of a radio-frequency quadrupole cooler for high beam currents

2017 ◽  
Vol 20 (12) ◽  
Author(s):  
Ramzi Boussaid ◽  
G. Ban ◽  
G. Quéméner ◽  
Y. Merrer ◽  
J. Lorry
Keyword(s):  
Radio Frequency ◽  
Radio Frequency Quadrupole ◽  
High Beam ◽  
Beam Currents

scholarly journals The Light Microscopy Module Design and Performance Demonstrations

2003 ◽  
Author(s):  
Susan Motil ◽  
John Snead ◽  
DeVon Griffin ◽  
Edward Hovenac
Keyword(s):  
Light Microscopy ◽  
Module Design ◽  
And Performance

scholarly journals Stretchable micro-scale concentrator photovoltaic module with 15.4% efficiency for three-dimensional curved surfaces

2021 ◽  
Vol 2 (1) ◽  
Author(s):  
Daisuke Sato ◽  
Taizo Masuda ◽  
Kenji Araki ◽  
Masafumi Yamaguchi ◽  
Kenichi Okumura ◽  
...  
Keyword(s):  
Concentration Ratio ◽  
Power Conversion ◽  
Three Dimensional ◽  
Thin Film Solar Cells ◽  
Photovoltaic Module ◽  
Silicon Compound ◽  
Curved Surfaces ◽  
Power Sources ◽  
Micro Scale ◽  
Module Design

AbstractStretchable photovoltaics are emerging power sources for collapsible electronics, biomedical devices, and buildings and vehicles with curved surfaces. Development of stretchable photovoltaics are crucial to achieve rapid growth of the future photovoltaic market. However, owing to their rigidity, existing thin-film solar cells based predominantly on silicon, compound semiconductors, and perovskites are difficult to apply to 3D curved surfaces, which are potential real-world candidates. Herein, we present a stretchable micro-scale concentrator photovoltaic module with a geometrical concentration ratio of 3.5×. When perfectly fitted on a 3D curved surface with a sharp curvature, the prototype module achieves an outdoor power conversion efficiency of 15.4% and the daily generated electricity yield improves to a maximum of 190% relative to a non-concentration stretchable photovoltaic module. Thus, this module design enables high areal coverage on 3D curved surfaces, while generating a higher electricity yield in a limited installation area.

scholarly journals Heritage Module within Legal Translation and Interpreting Studies: Didactic Contribution to University Students’ Sustainable Education

2021 ◽  
Vol 13 (7) ◽  
pp. 3966
Author(s):  
Anastasia Atabekova
Keyword(s):  
Experimental Design ◽  
University Students ◽  
Cultural Heritage ◽  
Theoretical Consideration ◽  
Graduate Program ◽  
Empirical Studies ◽  
Academic Research ◽  
Professional Activities ◽  
Module Design ◽  
Legal Translation

This article explores the hypothesis that the concept of heritage is relevant for a university-based degree course in legal translators and interpreters’ training. The research rests on the legal and academic understanding of cultural heritage. The study explores its specifics regarding the English-taught discipline on Legal Translation and Interpreting Studies within the above-mentioned graduate program. The research integrates qualitative tools and statistical instruments, starts with the theoretical consideration of legislative and academic sources, proceeds to the empirical studies of heritage samples, and considers their relevance for the heritage module design within the specified discipline. The experimental design of such a module and its use for the training of students are also part of the present investigation that further explores students’ perceptions of the heritage module under study, with reference to their future career tracks. The study reveals the specifics and components of the heritage framework for the discipline under study and identifies those areas of professional activities for which students consider the heritage module as most useful and relevant. These issues have not been a subject for academic research so far, which contributes to the research relevance and novelty.

Sign in / Sign up

Export Citation Format

Share Document