Results 81 to 90 of about 11,923,039 (294)

Antenna for television signal distribution in standard DVB-T [PDF]

open access: yes, 2011
Tato bakalářská práce se zabývá rozborem základních typů všesměrových anténních systémů určených pro vysílání standardu DVB-T. Pomocí simulátoru elektromagnetického pole CST Microwave Studio byla navržena kolineární anténa pracující v kmitočtovém pásmu ...
Vehovský, Radek
core  

Ion Chemistry in Dielectric Barrier Discharge Ionization: Recent Advances in Direct Gas Phase Analyses

open access: yesMass Spectrometry Reviews, EarlyView.
ABSTRACT Dielectric barrier discharge ionization (DBDI) sources, employing low‐temperature plasma, have emerged as sensitive and efficient ionization tools with various atmospheric pressure ionization processes. In this review, we summarize a historical overview of the development of DBDI, highlighting key principles of gas‐phase ion chemistry and the ...
Kseniya Dryahina   +4 more
wiley   +1 more source

User behaviour modelling for resource management in a hybrid UMTS/DVB-T network [PDF]

open access: yes, 2004
Third generation mobile networks such as UMTS are designed to enhance the deployment of multimedia services providing high data rates and new flexible communication capabilities.
Centonza, A   +4 more
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Detergent Screening With Hybrid Detergents Increases Observable Number of Protein Identities in Bottom‐Up Proteomics

open access: yesPROTEOMICS, EarlyView.
ABSTRACT Detergents are key reagents in bottom‐up proteomics that create an apparent, yet underappreciated bias on observable proteomes. Maximizing the chemical diversity of detergents in parallelized screens is supposed to maximize observable proteomes if proteomics data sets of different detergents are combined.
Jan‐Simon Behnke   +6 more
wiley   +1 more source

Analisis Unjuk Kerja Sistem Digital Video Broadcast (DVB)

open access: yesJurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems), 2012
DVB (Digital Video Broadcasting) adalah salah satu sistem yang digunakan untuk mentransmisikan siaran TV/Video digital hingga sampai ke pengguna akhir (end-user).
Dedi Usman Effendy   +2 more
doaj   +1 more source

Utilizing Open Source in Terrestrial Digital TV Broadcasting [PDF]

open access: yes, 2008
Indonesian terrestrial TV broadcasting has just started its migration to digital standard. Digitalization offers more roles for software development in various functional blocks of digital TV system.
Kusuma, A. A. N. Ananda   +1 more
core  

Solvothermal Synthesis of Porous Aminated Poly(1,2,4‐Triazolium) Networks and Their Use in CO2 Capture and Conversion

open access: yesJournal of Polymer Science, EarlyView.
Porous aminated poly(1,2,4‐triazolium) networks carrying varied counter anions were synthesized via solvothermal polymerization of a 1,2,4‐triazolium monomer with divinylbenzene as crosslinker. Their behaviors in CO2 capture and conversion were studied in detail.
Elnaz Tahavori   +5 more
wiley   +1 more source

Performance Analysis of Video Transmission Using Sequential Distortion Minimization Method for Digital Video Broadcasting Terrestrial

open access: yesEmitter: International Journal of Engineering Technology, 2016
This paper presents about the transmission of Digital Video Broadcasting system with streaming video resolution 640x480 on different IQ rate and modulation. In the video transmission, distortion often occurs, so the received video has bad quality.
Novita Astin   +2 more
doaj   +3 more sources

Sistema de transmisión ISDB-T

open access: yesMemoria Investigaciones en Ingeniería, 2011
Meses atrás Uruguay revisó su adopción de la norma de Televisión Digital Terrestre Abierta, resultando elegido el ISDB-T. La norma DVB-T había sido adoptada previamente en 2007 y desde entonces se realizaron transmisiones experimentales que generaron ...
Rafael Sotelo
doaj  

DVB-T channels power measurements in indoor/outdoor cases [PDF]

open access: yes, 2014
In this paper the analysis of the spectrum occupancy in the TV band is provided based on the indoor and outdoor measurements campaigns carried out in Poznan, Poland, and Barcelona, Spain, in 2013. The goal of this work is to discuss the stability and
Casadevall Palacio, Fernando José   +5 more
core  

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