Results 11 to 20 of about 263,020 (247)

Experimental Evaluation of the Shadowing of a Planar Antenna Caused by a Quadcopter Frame

open access: yesElectrical, Control and Communication Engineering, 2020
The use of mobile data transfer can significantly increase the range of the remote-controlled operation of multirotor aerial vehicles. The planar antennas of ready-to-use 3G/LTE cellular communication dongles provide a low-cost and lightweight ...
Heydarov Ibrahim, Brodnevs Deniss
doaj   +1 more source

NATM TUNNELS – CONSIDERATION OF THE PARTLY DAMAGED PRIMARY LINING IMPACT FOR THE SECONDARY LINING EVALUATION

open access: yesActa Polytechnica, 2020
Tunnels excavated by the New Austrian Tunnelling Method (NATM) are traditionally supported by a double-shell lining. The primary lining is generated from reinforced sprayed concrete with rockbolts, the secondary lining is generated from in-situ cast ...
Vlastislav Trunda, Matouš Hilar
doaj   +1 more source

An Experimental Study of Ground-Based Equipment Real Time Data Transfer Possibility by Using Cellular Networks

open access: yesElectrical, Control and Communication Engineering, 2017
An expanding mobile cellular network data transfer service offers cheaper wireless solutions for various data transfer needs. This paper presents an experimental testing of data transfer performance in 3G and 4G modes. The purpose of testing was to check
Brodņevs Deniss, Kutins Aleksandrs
doaj   +1 more source

CASAS 3G

open access: yesRevista 180, 2011
Tres casas se instalan en una parcela en esquina, en uno de los barrios más prestigiosos de Lima, muy cerca de una cancha de golf. Sin embargo, el entorno construido no ofrece más que fachadas de servicio de altos edificios que miran al golf y otros puntos de interés. La reflexión se centra en el modo de urbanización residencial de Lima.
Sandra Barclay, Jean Pierre Crousse
openaire   +1 more source

Electrical scanning probe microscopy of electronic and photonic devices: connecting internal mechanisms with external measures

open access: yesNanotechnology Reviews, 2016
The inner workings of semiconductor electronic and photonic devices, such as dopants, free charge carriers, electric potential, and electric field, are playing a crucial role in the function and performance of the devices.
Ban Dayan   +7 more
doaj   +1 more source

Mobile (wireless) telecommunication sector: an Indian perspective and PESTLE analysis [PDF]

open access: yesInternational Journal of Electronics and Telecommunications
Revolutionary changes in how people interact while travelling at a distance have given rise to several mobile communication tactics. Numerous generations of Mobile telecommunications/telephony have progressed as 1G, 2G, 3G, 4G, 5G, and 6G (now under ...
Chandrahash Patel, Kunal Sinha
doaj   +1 more source

On the improvement of performance and pollutant emissions of a spark ignition engine fuelled by compressed natural gas and hydrogen

open access: yesEnergy Reports, 2022
This paper presents the results of an experimental and a theoretical investigation made by simulations on a Renault HR09DET spark ignition engine, four-stroke, 3-cylinders, multipoint fuel injection fuelled successively by gasoline and compressed natural
Marius Cătălin Barbu   +2 more
doaj   +1 more source

ANALISIS POLA ADOPSI TEKNOLOGI 3G PADA KALANGAN MAHASISWA UNIVERSITAS INDONESIA BERDASARKAN MODEL SARKER DAN WELLS DENGAN MENGGUNAKAN TEKNIK STRUCTURAL EQUATION MODELING

open access: yesJurnal Sistem Informasi, 2012
Beberapa tahun terakhir, muncul teknologi telekomunikasi baru yang disebut 3G. Secara umum, penggunaan 3G di Indonesia belum meluas dan merata. Melihat perkembangan penggunaan 3G di Indonesia tersebut, peneliti ingin mengetahui faktor yang paling ...
Alida Widianti, Muhammad Rifki Shihab
doaj   +3 more sources

Optimization of Arthrospira platensis (Spirulina) Growth: From Laboratory Scale to Pilot Scale

open access: yesFermentation, 2017
Arthrospira platensis (Spirulina) is the most cultivated microalga worldwide. Improving its cultivation in terms of biomass productivity, quality, or production cost could significantly impact the Spirulina industry.
Florian Delrue   +8 more
doaj   +1 more source

Deterioration Causes Evaluation of Third Generation Cellular LTE Services for Moving Unmanned Terrestrial and Aerial Systems

open access: yesElectrical, Control and Communication Engineering, 2018
Well-deployed cellular networks offer a cheap wireless solution for the control channel deployment of Remote-Control Vehicles (RCV) and Unmanned Aerial Vehicles (UAV).
Brodņevs Deniss, Kutins Aleksandrs
doaj   +1 more source

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