scholarly journals Front-end Electronics for Unattended Measurement (FEUM). Prototype Test Plan

2015 ◽  
Author(s):  
Ryan C. Conrad ◽  
Scott J. Morris ◽  
Leon E. Smith ◽  
Daniel T. Keller
Keyword(s):  
Test Plan ◽  
Front End ◽  
Prototype Test

scholarly journals Design and Prototype Test of key components of Segmented Ligusticum wallichii Harvester

2021 ◽  
Vol 2137 (1) ◽  
pp. 012034
Author(s):  
Yajun Yang ◽  
Min Liao ◽  
Chao Su ◽  
Qiang Zhang
Keyword(s):  
Loss Rate ◽  
Strength Test ◽  
Vector Equation ◽  
Damage Rate ◽  
Front End ◽  
Prototype Test ◽  
Steel Bar ◽  
Crank Angle ◽  
Basic Parameters ◽  
Rate Loss

Abstract According to the harvest demand of Ligusticum wallichii, a segmented Ligusticum wallichii harvester was designed. The crushing device was set in the front end of tractor and the vibrating harvester was mounted in the rear end of tractor. Firstly, the strength test of Ligusticum wallichii stalks was carried out, and the basic parameters of the crushing device were determined. The results showed that the minimum required speed of the crushing device was 3880r/min. Secondly, the vibration structure was modeled and analyzed by vector equation, and the vibration structure was simulated and analyzed by ADAMS, and the parameters of the vibration structure were determined. The results showed that when the crank angle was 22~100°, the Ligusticum wallichii-soil mixture was thrown backward away from the vibration steel bar, and throw away distance was 88.42mm. Finally, the field prototype test was carried out. During the test, the crushing device could crush the stems of Ligusticum wallichii normally. The rotational speed was measured at 4020r/min. The obvious rate, loss rate and damage rate of Ligusticum wallichii stem were calculated. The stems obvious rate was 95%, loss rate was 4.5% and damage rate was 0.4%, which met the harvest requirements of Ligusticum wallichii.

scholarly journals CMS ECAL Upgrade Front End card: design and prototype test results

2019 ◽  
Author(s):  
Alexander Singovski ◽  
Alexander Dolgopolov ◽  
Colin Jessop ◽  
Nikitas Loukas ◽  
Keyword(s):  
Test Results ◽  
Front End ◽  
Prototype Test

Low-voltage BIMOS AM front-end amplifier

1990 ◽  
Vol 137 (1) ◽  
pp. 57 ◽  
Author(s):  
M. Steyaert ◽  
Z. Chang
Keyword(s):  
Low Voltage ◽  
Front End

Becoming the Nuclear-Front-End

2017 ◽  
Vol 47 (189) ◽  
Author(s):  
Patrick Schukalla
Keyword(s):  
Nuclear Reactor ◽  
Chemical Elements ◽  
High Technology ◽  
Power Production ◽  
Uranium Mining ◽  
Nuclear Industry ◽  
Current State ◽  
Front End ◽  
Production And Consumption ◽  
Uranium Exploration

Uranium mining often escapes the attention of debates around the nuclear industries. The chemical elements’ representations are focused on the nuclear reactor. The article explores what I refer to as becoming the nuclear front – the uranium mining frontier’s expansion to Tanzania, its historical entanglements and current state. The geographies of the nuclear industries parallel dominant patterns and the unevenness of the global divisions of labour, resource production and consumption. Clearly related to the developments and expectations in the field of atomic power production, uranium exploration and the gathering of geological knowledge on resource potentiality remains a peripheral realm of the technopolitical perceptions of the nuclear fuel chain. Seen as less spectacular and less associated with high-technology than the better-known elements of the nuclear industry the article thus aims to shine light on the processes that pre-figure uranium mining by looking at the example of Tanzania.

Análisis de la aplicación de pruebas funcionales y pruebas de usabilidad de software en el desarrollo de sistemas web

2019 ◽  
Vol 3 (3.4.) ◽  
pp. 180-190
Author(s):  
Natalia Patricia Layedra Larrea ◽  
Marco Vinicio Ramos Valencia ◽  
Blanca Faustina Hidalgo Ponce ◽  
Angela Elizabeth Samaniego Orozco
Keyword(s):  
Front End ◽  
El Sistema

El objetivo general del presente trabajo es analizar la aplicación de pruebas funcionales y pruebas de usabilidad en sistemas web. Para aplicar dichas pruebas se desarrolló un sistema web para la gestión de reuniones eclesiásticas para la Iglesia Bíblica Riobamba. El sistema fue desarrollado utilizando la metodología de desarrollo SCRUM, que permitió realizar un análisis de los requerimientos levantados tanto en prioridad de desarrollo como en el tiempo en que se realiza cada uno; además, se utilizó la tecnología AngularJS para el front end, mientras que para el back end se trabajó con el lenguaje de programación JAVA en el entorno de desarrollo Netbeans 8.2, y servicios RestFULL que permiten la conexión entre el front end y el back end. Finalmente, para la gestión de la base de datos se utilizó PostgreSQL. Sobre el sistema se han ejecutado pruebas de funcionamiento y usabilidad. Para obtener los resultados de la usabilidad del sistema se aplicó una encuesta de usabilidad a un grupo de 20 usuarios con distintos roles dentro del sistema, de los cuales el 90.14% manifestaron que pudieron usarlo fácilmente. Las pruebas de funcionamiento se aplicaron en el módulo de autenticación de usuarios, considerando que existen varios roles. Como resultado de las pruebas de funcionamiento se obtuvo un funcionamiento adecuado del módulo, en base a lo esperado por los usuarios.

Study on Improving Overall Efficiency of Front-end Power Supplies by Employing Method of Surge Energy Recycling

2012 ◽  
Vol 132 (7) ◽  
pp. 684-690 ◽  
Author(s):  
Toshikazu Okubo ◽  
Hiroyuki Shoji ◽  
Hideho Yamamura ◽  
Shinobu Irikura ◽  
Naoki Maru
Keyword(s):  
Power Supplies ◽  
Front End ◽  
Overall Efficiency

SUCCESS FACTORS IN THE FRONT END OF INNOVATION

2018 ◽  
Vol 2018 ◽  
pp. 926-926
Author(s):  
Alexander Vélez ◽  
◽  
Jose M Barrutia ◽  
Carmen Etxebarria
Keyword(s):  
Success Factors ◽  
Front End
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