Results 51 to 60 of about 181,132 (305)
BROADBAND ANTENNAS AND ANTENNA ARRAYS WITH REACTIVE LOADS [PDF]
Telecommunications and Radio Engineering, 2018 Subject and Purpose. The results of studies of actual methods for expanding the frequency range of vibrational curved whip and loop antennas, and antenna arrays based on them are presented. Optimal designs of broadband antennas with the concentrated reactive loads included in the shoulders are considered. Methods and methodology.
V. V. Ovsyanikov, E. R. Beznosova
openaire +1 more source
The Design of Microstrip Array Antenna and Its Optimization by a Memetic Method
IEEE Access, 2019 Microstrip antenna has been designed and applied to many practical scenarios for wireless communications. To meet the increasing requirements of wireless communication and quality of service, array antenna design deserves studying and analyzing.
Xin Zhang +3 more
doaj +1 more source
Plecstatin inhibits hepatocellular carcinoma tumorigenesis and invasion through cytolinker plectin
Molecular Oncology, EarlyView.The ruthenium‐based metallodrug plecstatin exerts its anticancer effect in hepatocellular carcinoma (HCC) primarily through selective targeting of plectin. By disrupting plectin‐mediated cytoskeletal organization, plecstatin inhibits anchorage‐dependent growth, cell polarization, and tumor cell dissemination.
Zuzana Outla +10 more
wiley +1 more source
Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment
Molecular Oncology, EarlyView.This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley +1 more source
PERFORMANCE ANALYSIS FOR DIRECTION-FINDING CIRCULAR ANTENNA ARRAY
Известия высших учебных заведений России: Радиоэлектроника, 2018 This paper considers circular antenna arrays comprised of symmetrical dipole radiators applied in communication, navigation and monitoring systems. Despite their widespread use, a number of significant issues is underinvestigated.
Svyatoslav V. Ballandovich +3 more
doaj +1 more source
An interferometer tracking radar system [PDF]
, 1969 Fine tuning acquisition and tracking interferometer radar system uses a first antenna array of at least three receiving antennas. Array includes a reference antenna, a coarse tuning antenna, and a fine tuning antenna aligned on a receiving axis.
Broderick, R. F.
core +1 more source
Antenna-coupled millimeter-wave LiNbO_3 electro-optic modulator [PDF]
, 1991 The phase-velocity mismatch due to material dispersion in traveling-wave LiNbO_3 optical waveguide modulators may be greatly reduced by breaking the modulation transmission line into short segments and connecting each segment to its own surface antenna.
Bridges, William B. +2 more
core +1 more source
FEBS Open Bio, EarlyView.Chemoresistance in bladder cancer: Macrophage recruitment associated with CXCL1, CXCL5 and CXCL8 expression is characteristic of Gemcitabine/Cisplatin (Gem/Cis) Non‐Responder tumors (right side) while Responder tumors did not show substantial tumor‐stromal crosstalk (left side). All biological icons are attributed to Bioicons: carcinoma, cancerous‐cell‐
Sophie Leypold +11 more
wiley +1 more source
FEBS Open Bio, EarlyView.Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley +1 more source
Synthesis of linear antenna arrays [PDF]
IEEE Transactions on Antennas and Propagation, 1976 Synthesis of antenna arrays employing the L_{2} -norm as well as the L_{\infty} -norm is discussed. The approximation in the L_{\infty} -norm is obtained making use of Lawson's algorithm. A general iterative perturbation technique has been evolved for pattern synthesis for the case when the antenna currents alone are varied as web as for the case when ...
Murthy, PK, Kumar, A
openaire +2 more sources