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1801
The Importance of CD44 as a Stem Cell Biomarker and Therapeutic Target in Cancer
Published 2016-01-01“…Research to date suggests use of monoclonal antibodies against different CD44 variant isoforms and targeted inhibition of HA/CD44-mediated signaling combined with conventional radio/chemotherapy may be the most favorable therapeutic strategy for future treatments of advanced stage malignancies. …”
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1802
Observation of Six Pre-Flare VLP Pulsations in Solar Corona
Published 2023-11-01“…Solar flares are sudden bursts in the solar atmosphere, which emit from radio wavelengths to gamma rays, and according to their energy, are classified into different classes (A, B, C, M, and X, respectively). …”
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1803
Beamforming for Rotated 3D Multipanel Array Structures for 5G NR MIMO Transmission
Published 2019-01-01“…5G new radio (NR) provides enhanced transmission capabilities to transceivers by utilizing the massive multiple-input multiple-output (MIMO) technology with a significantly increased number of antenna elements. …”
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1804
Dari Ratu Kembang Kacang hingga Berlanggam di Istana: Kiprah Waldjinah sebagai Penyanyi Istana Negara
Published 2023-06-01“…This can be seen from Waldjinah's participation in Bintang Radio approximately three times, even though at the beginning of her participation she did not get the best results.…”
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1805
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1806
3G Long Term Evolution Baseband Processing with Application-Specific Processors
Published 2009-01-01“…In this study, the software defined radio (SDR) is targeted and the four essential baseband functions of the 3G LTE receiver, namely, list sphere decoding, fast Fourier transform, QR decomposition, and turbo decoding, are addressed and the functions are implemented as application specific processors (ASPs). …”
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1807
Design of a Printed Dipole Antenna Array for a Passive Radar System
Published 2013-01-01“…The signal transmitted from sources of opportunity such as radio or TV stations is used as illumination for a certain area of interest. …”
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1808
A Printed LPDA Antenna Fed by a Microstrip Line to Double Sided Parallel Strip Line from Backside
Published 2017-01-01“…Using this feeding technique makes the printed LPDA antenna easier to be integrated into radio frequency (RF) circuits. In this paper, four layers are used to construct the antenna. …”
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1809
OPTIMIZING ENERGY CONSUMPTION FOR WIRELESS SENSOR NETWORKS
Published 2018-07-01“…The information collected by the sensors will be transmitted to the base station by radio waves. From here, the data is analyzed and processed to make decisions. …”
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1810
New multiple access and waveform technology for 6G
Published 2022-10-01“…With the explosive growth of Internet devices, the 5G new radio (NR) system faces congestion and high latency issues due to the low access efficiency of traditional orthogonal multiple access (OMA).Besides this, the performance of the orthogonal frequency-division multiplexing (OFDM)-based system is severely degraded due to the Doppler effect in high-speed scenarios.To meet the low-latency, high-reliability, and massive connection requirements of 6G communication in high-mobility scenarios, firstly, a novel orthogonal time frequency space (OTFS)-based pattern division multiple access (PDMA) scheme, shortened as OTFS-PDMA, was proposed.Then, the system input-output relationship of different types of PDMA codeword allocation schemes in the delay-Doppler (DD) domain was derived.Finally, a low-complexity expectation propagation algorithm (EPA)-based receiver was proposed.Simulation results illustrate that the proposed OTFS-PDMA scheme achieves significant performance gains over the conventional OTFS-OMA scheme.For regular PDMA patterns, the PDMA codeword allocation has a slight impact on the system performance.For irregular patterns, the centralized spreading method outperforms the discrete one.For discrete spreading scheme, the system can achieve better performance by assigning irregular PDMA spread signals along the Doppler direction.In addition, the proposed EPA receiver outperforms its conventional counterparts.…”
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1811
Vulnérabilité et Stratégies durables de gestion des risques : Une étude appliquée aux ménages ruraux de Madagascar
Published 2004-02-01“…This survey took place during the 2003 spring by the Rural Observatories Networks (ROR), with the information system on Malagasy countries established by the MADIO project.…”
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1812
Design of hybridly-connected hybrid precoding in millimeter-wave massive MIMO system
Published 2020-03-01“…In order to improve the spectral efficiency of hybridly-connected hybrid precoding,the optimal hybrid precoding matrix under the ideal conditions was firstly obtained by using the principle of successive interference cancellation (SIC).Secondly,the optimal hybrid precoding matrix was decomposed into the digital precoding matrix and the analog precoding matrix by using the gradient descent theory.Finally,considering the constant modulus constraint condition of the analog precoding matrix,the digital and analog precoding matrices were optimized by using the alternating minimization method aim to maximize the spectral efficiency.Due to the hybridly-connected structure,the proposed hybrid precoding design algorithm is significantly superior to the partially-connected and fully-connected hybrid precoding in terms of the system energy efficiency.Meanwhile,the algorithm does not increase any hardware complexity and only increases a small amount of computation of the hybridly-connected hybrid precoding.Computer simulation results exhibit that the proposed algorithm can improve the system spectral efficiency of the hybridly-connected hybrid precoding,and the upgrade of spectral efficiency is more significant especially in the conditions that the number of radio frequency (RF) links is greater than the number of data streams.Since the sub-blocks are not necessary to satisfy orthogonality conditions,the proposed algorithm is more suitable for practical application than the existing hybridly-connected hybrid precoding.…”
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1813
Towards Washable Wearable Antennas: A Comparison of Coating Materials for Screen-Printed Textile-Based UHF RFID Tags
Published 2012-01-01“…(Radio frequency identification) RFID tags integrated into clothing enable monitoring of people without their conscious effort. …”
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1814
Quantitative Measurement of Path Loss Model Adaptation Using the Least Squares Method in an Urban DVB-T2 System
Published 2018-01-01“…The aim of this paper was to propose quantitative measurement of path loss model adaptation in urban radio propagation for a second-generation, terrestrial digital video broadcasting standard (DVB-T2) system. …”
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1815
Convergence Research Directions in Cognitive Sensor Networks for Elderly Housing Design
Published 2015-09-01“…However, many sensor network-based systems cognizing radios, resources, environments, and so forth are not practically feasible and useful for the elderly themselves. …”
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1816
Joint Resource Allocation Optimization of Wireless Sensor Network Based on Edge Computing
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1817
Differentiated services dynamic spectrum access strategy for cognitive wireless mesh network
Published 2014-03-01“…Dynamic spectrum access (DSA) is an important design aspect for cognitive radio network.Common access of multi-type services having different quality of service (QoS) requirements is the important characteristic of cognitive wireless mesh network.Differentiated service (DS) is the key to realize the high efficiency use of spectrum resources and to guarantee the high quality transmission of services.In order to satisfy the demand for multi-type services,a differentiated services dynamic spectrum access strategy was proposed.In this strategy,the unlicensed user traffic was divided into three priority classes.The DSA scheme uses different access mechanisms for the three classes of unlicensed users.The real-time traffic selectes available channel set according to the shortest expected delay to reduce the transmission time and the probability of appearance of licensed user during data transmission process.The general traffic selectes the channel of largest successful transmission probability to avoid spectrum handoff.The theoretical and experimental results show that,when compared with the traditional cognitive networks DSA strategy,the proposed strategy is able to guarantee different QoS for the various services,shorter transmission delay for higher priority services,reducing the probability of transmission interruption and better throughput performance when the vacancy rate of licensed channel is major and heavy network load.…”
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1818
Hierarchical resource deployment and sharing strategy in mobile edge computing
Published 2021-03-01“…With the coming of 5G, Internet of things (IoT) has gradually become a reality.However, the function of many terminals is limited to insufficient computing resources in IoT.Mobile edge computing (MEC) is a new network paradigm, where terminals can offload the resource sensitive applications to nearby edge services with rich resources, and thus reduced the operational cost/delay and increased the quality of service (QoS).The resource deployment of MEC was studied, a scenario was considered that the Internet service provider (ISP) paid for deploying the MEC resources, and meanwhile gained revenue from leasing resources to terminals.Note that the deployment of MEC resource is a long-term strategy, while the demands from terminals are time varying.Therefore, it is critical to deploy the MEC resource properly.A hierarchical architecture built upon the 5G radio access network for MEC resource deployment and sharing was proposed, where the MEC resource could be deployed at different network levels.Based on the hierarchical network architecture, the optimal MEC resource deployment problem was formulated and solved as a mixed integer programming problem, aiming at maximizing the ISP’s revenue.And the CVX toolbox in MATLAB was used to solve the problem.Simulation results demonstrate that the proposed solution outperforms the flat resource deployment solution in terms of both the ISP’s revenue and the deployment cost.…”
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1819
Relaying Memory through a Generated Environment
Published 2021-02-01“…This study surveys three types of media sources that contain the memory of KDC: 1) interviews conducted with former prisoners; 2) the data-archives of a radio programme called Nahnu Bikhayr Taminuna Ankom(We are alive, tell us if you are) and 3) the built environment mapped with a sonic device. …”
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1820
The Influence of Hydrogen on the Properties of Zinc Sulfide Thin Films Deposited by Magnetron Sputtering
Published 2014-01-01“…Zinc sulfide thin films have been deposited with hydrogen in Ar and Ar+H2 atmosphere by radio frequency magnetron sputtering. The thickness, structural properties, composition, surface morphology, and optical and electrical properties of the films have been investigated. …”
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