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السجلات المعروضة 21218 -- 21237 من 59836
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On The Tradeoffs of FSO Communications in UAV Networks Under Varying Weather Conditions
( Institute of Electrical and Electronics Engineers Inc. (IEEE) , 2024 , Conference)Unmanned aerial vehicles (UAVs) are having increasing importance in various application areas. Therefore, efficient communication between UAVs, and between UAVs and ground stations or base stations (BSs), is essential. ... -
On the use of device-to-device communications for QoS and data rate enhancement in LTE public safety networks
( IEEE , 2014 , Conference)In this paper, device-to-device (D2D) communications are investigated in the framework of LTE public safety networks. A clustering approach to enhance the performance of public safety D2D networks is proposed. In each ... -
On the Use of Quantum Communications for Securing IoT Devices in the 6G Era
( Institute of Electrical and Electronics Engineers Inc. (IEEE) , 2021 , Conference)The Internet of Things (IoT) connects billions of machines that can interact with each other. IoT is one of the fastest-growing areas in the history of computing, and will continue in this direction in the 6G era. New ... -
On the use of time-frequency features for detecting and classifying epileptic seizure activities in non-stationary EEG signals
( Institute of Electrical and Electronics Engineers Inc. , 2014 , Conference)This paper proposes new time-frequency features for detecting and classifying epileptic seizure activities in non-stationary EEG signals. These features are obtained by translating and combining the most relevant time-domain ... -
On the Valence State of Iron in Sr0.52+Ca0.52+Fe0.54+ Me0.54+O32−
( WILEY-VCH Verlag GmbH & Co. , 1989 , Article)Powder samples of Sr0.5Ca0.5Fe0.5Me0.5O3 (Me = Co, Zr or Mn) and Sr0.3La0.7FeO3 are investigated by X-ray diffraction and Mossbauer effect spectroscopy. Analysis of the completely ordered spectra suggested three kinds ... -
On Thermal Distribution for Darcy-Forchheimer Flow of Maxwell Sutterby Nanofluids over a Radiated Extending Surface
( MDPI , 2022 , Article)This study addresses thermal transportation associated with dissipated flow of a Maxwell Sutterby nanofluid caused by an elongating surface. The fluid passes across Darcy-Forchheimer sponge medium and it is affected by ... -
On Three Species Of The Trematode Genus Plagioporus Stafford, 1904 From Red Sea Fishes
( Qatar University , 1985 , Article)The genus PIagioporus is breiefly reviewed. P. (Caudotestis) neopercis is re-described from Anampses caeruleopunctatus and Lethrinus miniatus and P. (Caudotestis) lethrini from L. nebulosus and L. miniatus. Both trematodes ... -
On Time-Dependent Rheology of Sutterby Nanofluid Transport across a Rotating Cone with Anisotropic Slip Constraints and Bioconvection
( MDPI , 2022 , Article)The purpose and novelty of our study include the scrutinization of the unsteady flow and heat characteristics of the unsteady Sutterby nano-fluid flow across an elongated cone using slip boundary conditions. The bioconvection ... -
On Transformations and Perturbations of Orthogonal r-Frames
( WILEY-VCH Verlag GmbH & Co. , 1993 , Article)A decomposition of Cn into a finite direct sum of orthogonal subspaces can be conveniently represented by its orthogonal projector frame, which is the collection of the corresponding orthogonal projectors. Two such ... -
On Two New Haemogregarines (Protozoa: Apicomplexa) From Colubrid And Elapidae Snakes In Egypt
( Qatar University , 1996 , Article)Two species of colubrid and elapid snakes collected from different localities in Egypt were examined for protozoan blood parasites. TWo new species of Haemogregarina senso lato are described: Haemogregarina garnhami n.sp. ... -
On using relays with carrier aggregation for planning 5G networks supporting M2M traffic
( IEEE , 2014 , Conference)In this paper, the joint use of carrier aggregation (CA) and relay stations (RSs) to support machine-to-machine (M2M) traffic in 5G networks is investigated. The focus of the paper is mainly on fixed M2M devices, periodically ... -
On Using the One-Exposure Method for Stress Measurements by X-Rays in Technology and Scientific Research
( Qatar University , 1982 , Article)The paper discusses the connection between macroscopic internal stresses and the technological character of technical materials. The basic theoretical relations which are used with X-Ray tensiometry of macroscopic internal ... -
ON VARIABLE SELECTION WITH THE PRESENCE OF MISSING DATA IN LONGITUDINAL PANEL STUDIES
(06-2 , Master Thesis)Longitudinal data are valuable in various disciplines because they provide helpful developmental patterns over time. However, frequently, it is challenging to have a high dimension of covariates and ubiquitous missing ... -
On Zero Dynamics and Controllable Cyber-Attacks in Cyber-Physical Systems and Dynamic Coding Schemes as Their Countermeasures
( Institute of Electrical and Electronics Engineers Inc. , 2024 , Article)In this paper, we study stealthy cyber-attacks on actuators of cyber-physical systems (CPS), namely zero dynamics and controllable attacks. In particular, under certain assumptions, we investigate and propose conditions ... -
On-line estimation of transformer model parameters
( IEEE , 2004 , Conference)The conventional method for determining the parameters of the transformer is to performing the open and short-circuited tests. The method is only suitable for off-line application. This paper presents an alternative approach ... -
Oncolytic viruses as nanomedicines against the tumor microenvironment
( AMG Transcend Association , 2021 , Article Review)The tumor microenvironment is best described as the battleground for fighting cancer and the host immune system. Contrary to primitive beliefs that cancer growth and progression are solely dependent on cancer cells, recent ... -
Oncoproteins E6/E7 of the human papillomavirus types 16 & 18 synergize in modulating oncogenes and tumor suppressor proteins in colorectal cancer
( Taylor and Francis Ltd. , 2025 , Article)Objective Our study presents a novel analysis of the oncogenes and tumor suppressor proteins directly modulated by E6/E7 of high-risk HPV types 16 and 18, in colorectal cancer (CRC). Methods HCT 116 (KRAS mutant) & ... -
Oncoproteins of High-Risk HPV and EBV Cooperate to Enhance Cell Motility and Invasion of Human Breast Cancer Cells Erk1/Erk2 and β-Catenin Signaling Pathways.
( Frontiers Media , 2021 , Article)Breast cancer is a leading cause of death in women around the world. Most breast cancer-related deaths are a result of complications from the metastatic spread. Several recent studies reported that high-risk human ... -
One and two sample confidence intervals for estimating the mean of skewed populations: an empirical comparative study
( TAYLOR & FRANCIS LTD , 2009 , Article)In this paper we consider and propose some confidence intervals for estimating the mean or difference of means of skewed populations. We extend the median t interval to the two sample problem. Further, we suggest using the ... -
One Arab woman's journey to entrepreneurship: a case study
( Inderscience , 2013 , Article)The United Arab Emirates (UAE) is pegged as a highly opportunistic market. The region's unique demographics include a native population that is in the minority and high numbers of women involved in entrepreneurial activities. ...
