|
|
|
|
|
Eduardo M. Calvo, Mario J. Pinheiro and Paulo A. Sá
This work aims to optimize a previous self-consistent model of a single stage electrohydrodynamic (EHD) thruster for space applications. The investigated parameters were the thruster performance (propulsion force T, the thrust to power ratio T/P, the ele...
ver más
|
|
|
|
|
|
|
|
|
|
|
Zhe Jiang, Bin Lu, Biao Wang, Weicheng Cui, Jinfei Zhang, Ruilong Luo, Gaosheng Luo, Shun Zhang and Zhongjun Mao
To better study the biology and ecology of hadal trenches for marine scientists, the Hadal Science and Technology Research Center (HAST) of Shanghai Ocean University proposed to construct a movable laboratory that includes a mothership, several full-ocea...
ver más
|
|
|
|
|
|
|
|
|
|
This paper presents a versatile ballast for discharge lamps, whose operation is based on the notion of a loss-free resistor (LFR). The ballast consists of two stages: (1) a boost converter operating in continuous conduction mode (CCM) and exhibiting an L...
ver más
|
|
|
|
|
|
|
|
|
|
|
Vladimir Burlaka,Elena Lavrova
Pág. 38 - 43
This paper proposes a circuit solution and a control algorithm for a welding power source for TIG-AC welding with improved energy characteristics. The source is made using a welding transformer and a low-voltage series active power filter on power field ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Asim Onder, Conor ONeill, Mark Robinson
Pág. 595 - 604
This paper describes a simplified practical approach to the impact damage assessment of flying ballast or debris in composite materials, which could potentially be used for passenger rail vehicles. With the development of high-speed lines in order to gua...
ver más
|
|
|
|
|
|
|
|
|
|
|
Sz. Fischer
Pág. 97 - 106
|
|
|
|
|
|
|
|
|
|
|
K. V. Honcharov
Pág. 23 - 31
|
|
|
|
|
|
|
|
|
|
|
I. O. Romantsev,V. I. Havryliuk
Pág. 187 - 192
? ???? ?????? ????????????? ?????? ??????? ??????? ???????????????? ???? ???? ????????? ??????? ?? Trackside, ????????? ??? ???? ? ???? ????????? ??????????, ???????.
|
|
|
|
|
|