Results 21 to 30 of about 11,312,526 (253)

Generation of Multiple Pseudo Bessel Beams with Accurately Controllable Propagation Directions and High Efficiency Using a Reflective Metasurface

open access: yesApplied Sciences, 2020
In this paper, a generation method procedure based on a reflective metasurface is proposed to generate multiple pseudo Bessel beams with accurately controllable propagation directions and high efficiency.
Haixia Liu   +3 more
doaj   +1 more source

112-Gb/s DSP-Based PAM-4 Transceivers for Large-Scale Ethernet Switching Systems

open access: yesIEEE Open Journal of the Solid-State Circuits Society
As modern ASICs integrate several hundred interconnect ports in a large package, ASIC Serdes design faces challenging performance, power, and area targets.
Henry Park   +3 more
doaj   +1 more source

Trend analysis of traffic management based on literature data mining and graph analysis tools

open access: yesIET Intelligent Transport Systems, 2023
Studites on traffic management is crucial for the development of intelligent transportation systems and smart cities. However, identifying the development stages of traffic management field based on bibliometric analysis is still lacking.
Xiaoe Ding   +6 more
doaj   +1 more source

Requests from Companies and Requirements for Design Education in Brazil: where do they meet? [PDF]

open access: yes, 2018
In this paper, we study what companies request from applicants for graphic design positions in Brazil. Based on a document analysis of 371 job advertisements, we uncover 35 different types of requests which we structure in terms of (1) Design ...
Person, Oscar   +10 more
core   +1 more source

Generation and regulation of two-dimensional autofocusing Airy beams based on holographic metasurfaces

open access: yesJournal of Information and Intelligence, 2023
This paper proposes a new method to generate a two-dimensional (2D) Airy beam and Airy autofocusing beam by using the scalar holographic metasurface with amplitude-phase modulation in the microwave band.
Song Zhang   +6 more
doaj   +1 more source

Determinant moments for the design management occurrence in fashion industry [PDF]

open access: yes, 2018
Design management has occupied a privileged place in debates related to the field of design and innovation in fashion industry. The apparel industry, in particular, presents a dynamic character, requiring constant updates on raw materials, changes in ...
Libânio, Cláudia de Souza   +5 more
core   +1 more source

Amplification and Manipulation of Nonlinear Electromagnetic Waves and Enhanced Nonreciprocity using Transmissive Space‐Time‐Coding Metasurface

open access: yesAdvanced Science, 2022
A novel amplifier‐based transmissive space‐time‐coding metasurface is presented to realize strongly nonlinear controls of electromagnetic (EM) waves in both space and frequency domains, which can manipulate the propagation directions and adjust ...
Xin Wang   +5 more
doaj   +1 more source

Frequency-Diverse Holographic Metasurface Antenna for Near-Field Microwave Computational Imaging

open access: yesFrontiers in Materials, 2021
This article presents a holographic metasurface antenna with stochastically distributed surface impedance, which produces randomly frequency-diverse radiation patterns. Low mutual coherence electric field patterns generated by the holographic metasurface
Jiaqi Han   +12 more
doaj   +1 more source

Ovarian Sex Cord Stromal Tumors in Children and Adolescents—The European Standard Clinical Practice Recommendations

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT As part of the European Cooperative Study Group for Paediatric Rare Tumours initiative, we developed standard clinical practice guidelines for ovarian sex cord stromal tumors, based on comprehensive national and international cohort analyses, literature review, and a final expert consensus conference.
Dominik T. Schneider   +15 more
wiley   +1 more source

Influence of Expressway Construction Area Information on Drivers’ Route Choice Behaviours

open access: yesJournal of Advanced Transportation
Expressway traffic information is important for guiding driving routes and alleviating traffic congestion. However, the current research on expressway guidance information focuses on existing expressways.
Yuexiang Li   +7 more
doaj   +1 more source

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