Results 71 to 80 of about 56,740 (149)

An innovative technique for the development of the traditional mechanical tide gauge to improve the performance of the measurement system

Measurement: Sensors, 2019
Over the last decades, interest in high-quality sea-level reads and higher-accuracy tide gauges has increased because of concern about the sea-level rise induced by climate change.
Gerges M. Salama, Hesham F.A. Hamed, Essam A.M. Deabes, Salsabeel E. Othman   +3 more
doaj   +1 more source

Intube two-phase flow probabilities based on capacitance signal clustering [PDF]

, 2009
To study the objectivity in flow pattern mapping of horizontal two-phase flow in macroscale tubes, a capacitance sensor is developed for use with refrigerants. Sensor signals are gathered with R410A in an 8mm I.D.
Canière, Hugo, De Paepe, Michel, T'Joen, Christophe   +2 more
core   +1 more source

2D heterostructures of graphene oxide and MoS2 to improve sensitivity performance of flexible pressure sensor with shell biological structure

Frontiers in Materials
Inspired by the multilayer structure of the shellfish, a novel two-dimensional (2D) composite structure consisting of graphene oxide, MoS2 and graphene oxide (G/M/G) was integrated to the flexible pressure sensing. The composite structure was prepared by
Zheyu Hu, Dabing Zhang, Yuning Zhou
doaj   +1 more source

A 24-GHz, +14.5-dBm fully integrated power amplifier in 0.18-μm CMOS [PDF]

, 2005
A 24-GHz +14.5-dBm fully integrated power amplifier with on-chip 50-[ohm] input and output matching is demonstrated in 0.18-μm CMOS. The use of substrate-shielded coplanar waveguide structures for matching networks results in low passive loss and small ...
Hajimiri, Ali, Komijani, Abbas, Natarajan, Arun   +2 more
core  

Calibração e validação de um medidor de capacitância num projecto de agriculturade precisão em pastagens Calibration and validation of an electronic capacitance meter in a pasture precision agriculture project

Revista de Ciências Agrárias, 2009
O objectivo deste trabalho consistiu em calibrar uma sonda electrónica de capacitância para simplificar o processo de avaliação da pastagem num projecto de Agricultura de Precisão. O método tradicional de determinação da massa de pastagem exige um grande
João Manuel Serrano, José Oliveira Peça, Paulo Palma, José Rafael Silva, Mário Carvalho   +4 more
doaj  

Olive fruit ripening characterisation based on electrical capacitance measurements

Smart Agricultural Technology
Olive fruit ripening involves the accumulation of fat content through lipogenesis. The completion of this complex process is considered a reliable indicator of the optimal time for harvesting.
Daniel Argüello, Miguel Noguera, Andrés Mejías, Juan Manuel Enrique, Arturo Aquino   +4 more
doaj   +1 more source

Electric arc discharge damage to ion thruster grids [PDF]

Arcs representative of those occurring between the grids of a mercury ion thruster were simulated. Parameters affecting an arc and the resulting damage were studied. The parameters investigated were arc energy, arc duration, and grid geometry.
Beebe, D. D., Finke, R. C., Nakanishi, S.   +2 more
core   +1 more source

Development and Application of Ultra High Strength Cable forDeep Ten Thousand Meter Wells

Cejing jishu
In response to the challenges of high tension and ultra long signal transmission faced by cable logging in deep 10 000-meter wells, this article adopts a combination of theoretical design, data analysis, and experimental testing.
MA Jianghu, ZHANG Bingjun, ZHANG Haijun, YANG Qingjian, SHUAI Shichen, LUO Shengqiang, YOU Zhanhua, SUN Wei, JIANG Songhan   +8 more
doaj   +1 more source

Digital Capacitance and Inductance Meter

Measurement Science Review, 2008
Hruškovic M., Hribik J.
doaj   +1 more source

Liquid Production Profile Testing Technology for Heavy Oil Thermal Recovery Well

Shiyou jixie, 2019
A new type of heavy oil thermal recovery well production profile testing tool is developed for the difficult testing of the production profile of heavy oil thermal recovery wells.
Liu Ming
doaj