Results 71 to 80 of about 25,408 (310)

Germanane Quantum Dots Promote Metabolic Reprogramming of Immune Cells Toward Regulatory T Cells and Suppress Inflammation In Vitro and In Vivo

Advanced Functional Materials, EarlyView.
Metabolic changes in immune cells direct the phenotype and function of the host immune system. Smart nanomaterials must target metabolic pathways to direct immune cell fate. This study reports the fabrication and first application of germanane quantum dots (GeHQDs) to modulate inflammation in vitro and in vivo.
Abhay Srivastava, Alireza Rafieerad, Weiang Yan, Keshav Narayan Alagarsamy, Qingdong Guan, Leena Regi Saleth, Michel Aliani, Sanjiv Dhingra   +7 more
wiley   +1 more source

Design of integrated wideband WR34‐band diplexer‐antenna array module for exploration of monolithic metal 3‐D printing for space applications

IET Microwaves, Antennas & Propagation
The design of a wideband diplexer integrated with a 16‐slot Continuous Transverse Stub (CTS) antenna array is presented. The diplexer‐antenna array module covers the whole WR34 band. The Tx and Rx bands cover 21.7–26 and 27.5–33 GHz ranges, respectively.
Povilas Vaitukaitis, Jiayu Rao, Kenneth Nai, Jiasheng Hong   +3 more
doaj   +1 more source

Multi-feed cone Cassegrain antenna Patent [PDF]

, 1970
Design and operation of multi-feed cone Cassegrain ...
Katow, M. S., Levy, G. S., Stelzried, C. T.   +2 more
core   +1 more source

From Single Atoms to Nanoparticles: Pathways Toward Efficient and Durable Pt/TiO2 Photocatalysts

Advanced Functional Materials, EarlyView.
Platinum single atoms on TiO2 nanosheets evolve into clusters and nanoparticles under ethanol photoreforming and thermal treatments. By controlling deposition and post‐treatments, particle size and location on specific facets are modulated. The study reveals how stability pathways determine efficiency, guiding the design of more durable photocatalysts.
Juan José Delgado, Enqi Bu, Yaning Han, Carlos López‐Cartes, Mónica Calatayud, Huiyan Pan, Xiaowei Chen   +6 more
wiley   +1 more source

Spacecraft Antennas [PDF]

, 1990
Some of the various categories of issues that must be considered in the selection and design of spacecraft antennas for a Personal Access Satellite System (PASS) are addressed, and parametric studies for some of the antenna concepts to help the system ...
Cramer, Paul, Jamnejad, Vahraz, Manshadi, Farzin, Rahmat-Samii, Yahya   +3 more
core   +1 more source

Precoding in multigateway multibeam satellite systems [PDF]

, 2016
This paper considers a multigateway multibeam satellite system with multiple feeds per beam. In these systems, each gateway serves a set of beams (cluster) so that the overall data traffic is generated at different geographical areas.
Joroughi, Vahid, Pérez Neira, Ana Isabel, Vazquez, Miguel Angel   +2 more
core   +1 more source

Tuning the Selectivity of the CO2 Reduction Reaction by Means of Synergistic Interactions in the Cu, Ag, Ce System

Advanced Functional Materials, EarlyView.
Multi‐metal Cu─Ce─Ag nanoparticles harness synergistic interactions to drive efficient electrochemical CO2 reduction reaction toward C2+ products at high current densities. Ag enhances CO production, Ce modulates Cu oxidation states, and together they boost *CO coverage and local pH to enhance C─C coupling, enabling record C2+ yields with suppressed ...
Nini Zhang, Muhammad Adib Abdillah Mahbub, Bashir Eid, Thomas Quast, Jian Zhang, Ridha Zerdoumi, Xin Wang, Sabine Seisel, Wangcheng Zhan, Wolfgang Schuhmann   +9 more
wiley   +1 more source

Compact and Highly Isolated Continuous Scanning Dual-Polarized Holographic Antenna Using a Pillbox Feeding Structure

Applied Sciences
In this paper, we propose a novel approach to realize a compact and highly isolated dual-polarized holographic antenna using a pillbox feeding structure.
Chan Yeong Park, Ick-Jae Yoon, Young Joong Yoon   +2 more
doaj   +1 more source

Block Copolymers: Emerging Building Blocks for Additive Manufacturing

Advanced Functional Materials, EarlyView.
This review addresses how block copolymer (BCP) physics and rheology have led to the widespread use of BCPs in advanced additive manufacturing techniques, with particular emphasis on the untapped potential of these nanostructured materials toward achieving multi‐scale architected materials with unique, programmable material properties.
Alice S. Fergerson, Hemish B. Thakkar, Jiaen Wu, Emily C. Davidson   +3 more
wiley   +1 more source

Development of Wideband High‐Selective Circularly Polarised Antenna Based on Filtering Quadrature Phase Feeding Network

IET Microwaves, Antennas & Propagation
This paper presents a new design of circularly polarised (CP) antenna with wideband and high gain selectivity. To achieve good circular polarisation performance, a wideband quadrature phase feeding network is initially developed with two output signals ...
Zhipeng Xia, Qing‐Yuan Lu, Shangjun Jiang, Jianpeng Wang, Wen Wu, Yongxin Guo   +5 more
doaj   +1 more source