Results 11 to 20 of about 544,023 (260)

Effect of Some Meteorological Variables and Conditions on Mobile Phone and 'TV' Satellite Signal

open access: yesAl-Mustansiriyah Journal of Science, 2021
The study aimed to seek for the effect of meteorological parameters and conditions on wave transport for both radio wave band that used by mobile phone communication and microwave band that used in 'TV' satellites by showing which atmospheric variable ...
Hussain Abodi Nemah   +3 more
doaj   +1 more source

Surface Refractivity Profile Construction on One-Fourth Kilometer Square Area for 1800 to 1900 Mhz Frequency

open access: yesIEEE Access, 2020
The meteorological parameters review the impact of refractivity on received signal strength for the one-fourth kilometre square area is confer for frequency 1800 to 1900 MHz.
Sayyed Shahid Hussain   +5 more
doaj   +1 more source

Improving Data Delivery in Large Environments and Mobile Areas

open access: yesOpen Computer Science, 2021
Advances in communication technology have significantly altered our knowledge about telephone networks. The remarkable expansion in communication is obvious in numerous aspects of life of life; the transmission of information has never been easier ...
Najim Nada I.
doaj   +1 more source

Engineering Cytoplasmic Signaling of CD28ζ CARs for Improved Therapeutic Functions

open access: yesFrontiers in Immunology, 2020
Chimeric antigen receptor modified T cells (CAR-T) have yielded impressive clinical outcomes in treating hematopoietic malignancies. However, relapses have occurred in a substantial number of patients and limited the development of CAR-T therapy.
Xianhui Meng   +12 more
doaj   +1 more source

Development of Condition Assessment Index of Ballast Track Using Ground-Penetrating Radar (GPR)

open access: yesSensors, 2021
The condition of the ballast is a critical factor affecting the riding quality and the performance of a track. Fouled ballast can accelerate track irregularities, which results in frequent ballast maintenance requirements.
Fiseha Nega Birhane   +2 more
doaj   +1 more source

The Role of Optical Coherence Tomography Signal Strength in the Diagnosis and Follow-up of Patients with Posterior Capsular Opacification Treated with Nd:YAG Laser Capsulotomy

open access: yesTürk Oftalmoloji Dergisi, 2020
Objectives:To investigate the relationship between optical coherence tomography (OCT) signal strength (SS) and visual acuity in patients with posterior capsule opacification (PCO) and evaluate the effect of PCO on retinal thickness measurements.Materials
Mustafa Vatansever   +5 more
doaj   +1 more source

Mechanical Properties and Acoustic Emission Characteristics of Weakly Cemented Sandstone With Different Grain Sizes

open access: yesFrontiers in Earth Science, 2022
The weakly cemented sandstone is widely distributed in the Western Mining Area, which is mainly formed by mineral grains and cemented minerals through compaction and cementation.
Bin Liu   +6 more
doaj   +1 more source

A Novel Method to Determine the Optimal Location for a Cellular Tower by Using LiDAR Data

open access: yesApplied System Innovation, 2022
The cellular industry faces challenges in controlling the quality of signals for all users, given its meteoric growth in the last few years. The service providers are required to place cellular towers at the optimal location for providing a strong ...
Shruti Bharadwaj   +5 more
doaj   +1 more source

Strength of TRAF6 signalling determines osteoclastogenesis [PDF]

open access: yesEMBO reports, 2005
TRANCE/TRAF6 signalling governs osteoclastogenesis in vivo. Only the TRANCE receptor (TRANCE-R) has been shown to induce osteoclastogenesis, even though other immune receptors, including CD40 and IL-1R/Toll-like receptor, use TRAF6 to activate overlapping signalling cascades.
Yuho, Kadono   +6 more
openaire   +2 more sources

Accurate positioning system for mine based on UWB technology

open access: yesMeikuang Anquan, 2021
This paper proposes a design scheme of mine precision positioning based on UWB technology. Firstly, the environmental characteristics of mine roadways are analyzed, and then the system networking model and UWB accurate positioning algorithm are studied ...
WANG Fei
doaj   +1 more source

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