Results 11 to 20 of about 2,403,125 (249)

Energy Efficient Power Allocation for Downlink NOMA Heterogeneous Networks With Imperfect CSI

IEEE Access, 2019
Non-orthogonal multiple access (NOMA) is a promising emerging technology that can significantly improve the utilization of spectrum and system capacity in heterogeneous wireless networks.
Xin Song, Li Dong, Jingpu Wang, Lei Qin, Xiuwei Han   +4 more
doaj   +1 more source

Joint Uplink and Downlink Resource Allocation for D2D Communications System

Future Internet, 2019
In cellular networks, device-to-device communications can increase the spectrum efficiency, but some conventional schemes only consider uplink or downlink resource allocation.
Xin Song, Xiuwei Han, Yue Ni, Li Dong, Lei Qin   +4 more
doaj   +1 more source

Secure Communication for Uplink Cellular Networks Assisted with Full-Duplex Device-to-Device User

Future Internet, 2020
In this paper, the secure communication based on the full-duplex (FD) device-to-device (D2D) in cellular networks is proposed. For the proposed scheme, the novel model is established, in which a D2D user is played as a relay operating in FD mode to ...
Xin Song, Lin Xia, Siyang Xu, Yue Wang
doaj   +1 more source

Identification of tyrosine sulfation in the variable region of a bispecific antibody and its effect on stability and biological activity

mAbs, 2023
Despite tyrosine sulfation being a relatively common post-translational modification (PTM) on the secreted proteins of higher eukaryotic organisms, there have been surprisingly few reports of this modification occurring in recombinant monoclonal ...
Christopher B. Lietz, Ekaterina Deyanova, Younhee Cho, Jon Cordia, Sarah Franc, Sally Kabro, Steven Wang, David Mikolon, Douglas D. Banks   +8 more
doaj   +1 more source

Constrained ear decompositions in graphs and digraphs [PDF]

Discrete Mathematics & Theoretical Computer Science, 2019
Ear decompositions of graphs are a standard concept related to several major problems in graph theory like the Traveling Salesman Problem. For example, the Hamiltonian Cycle Problem, which is notoriously N P-complete, is equivalent to deciding whether a ...
Frédéric Havet, Nicolas Nisse
doaj   +1 more source

Analysis of Wellhead Uplift in Offshore Thermal Recovery by Using Finite Element Numerical Simulation

Journal of Engineering, 2018
Pilot test of complex thermal fluid recovery technology was conducted in NB35-2 heavy oil field. Wellhead uplift was detected among some oil wells, and development of offshore thermal recovery technology could be restricted by the serious safety problems
Shexia Dong, Dongsheng Zhuang, Gongming Ji, Chunming Zhu, Ting Sun   +4 more
doaj   +1 more source

Rapid and reliable re-design of miniaturized microwave passives by means of concurrent parameter scaling and intermittent local tuning

Scientific Reports, 2023
Re-design of microwave passive components for the assumed operating frequencies or substrate parameters is an important yet a tedious process. It requires simultaneous tuning of relevant circuit variables, often over broad ranges thereof, to ensure ...
Slawomir Koziel, Anna Pietrenko-Dabrowska   +1 more
doaj   +1 more source

Development of spatially variant photonic crystals to control light in the near-infrared spectrum

Scientific Reports, 2022
Spatially Variant Photonic Crystals (SVPCs) have shown the ability to control the propagation and direction of light in the near-infrared spectrum. Using a novel approach for simplified modeling and fabrication techniques, we designed unique, spatially ...
Andrew Volk, Amit Rai, Imad Agha, Tamara E. Payne, Jimmy E. Touma, Rudra Gnawali   +5 more
doaj   +1 more source

Study on Synergistic Effect of Directional Chemical Reaction⁃Assisted SAGD under Three⁃Dimensional Physical Simulationon

Shiyou huagong gaodeng xuexiao xuebao
In the process of heavy oil thermal recovery using SAGD (Steam⁃Assisted Gravity Drainage) technology, conventional thermal recovery boilers are mainly used for heat generation.
Tao LIN, Qiaobo WANG, Hongzhi SONG, Zhongtao YUAN, Tianliang LI   +4 more
doaj   +1 more source

A SiO2 Hybrid Enzyme-Based Biosensor with Enhanced Electrochemical Stability for Accuracy Detection of Glucose

International Journal of Analytical Chemistry, 2023
A novel enzyme-based biosensor for glucose detection is successfully developed using layer-by-layer assembly technology. The introduction of commercially available SiO2 was found to be a facile way to improve overall electrochemical stability.
Li Mei, Yiting Yang, Jiagen Li, Shuyong Shang, Xiaohong Fu   +4 more
doaj   +1 more source