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Automated rectenna design 1

Emerging rectenna techniques 1

Engine design 1

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Microwave wireless energy harvesting 1

Microwave wireless power transfer 1

PCOS 1

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Two-stroke engine 1

Unified Rectifier model 1

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charged scavenging 1

embryo quality 1

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free piston linear generator (FPLG) 1

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A High-Efficiency Two-Stroke Engine Concept: The Boosted Uniflow Scavenged Direct-Injection Gasoline Review

Xinyan Wang, Hua Zhao

Engineering 2019, Volume 5, Issue 3, Pages 535-547 doi: 10.1016/j.eng.2019.03.008

Abstract:

A novel two-stroke boosted uniflow scavenged direct-injection gasoline (BUSDIG) engine has been proposedIn order to maximize the scavenging performance and produce sufficient incylinder flow motions for theThe effects of the opening profiles of the scavenge ports and exhaust valves on controlling the scavenging

Keywords： Two-stroke engine Uniflow scavenging Engine design Engine simulation Scavenging performance Thermal

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Free radical scavenging window of infertile patients with polycystic ovary syndrome: correlation with

Bo Huang, Zhou Li, Xinling Ren, Jihui Ai, Lixia Zhu, Lei Jin

Frontiers of Medicine 2017, Volume 11, Issue 2, Pages 247-252 doi: 10.1007/s11684-017-0519-6

Abstract: However, studies analyzing the relationship between the free radical scavenging capacity and embryo qualityThe aim of this study was to evaluate the relationship between the free radical scavenging window ofThe free radical scavenging capacity of follicular fluid from women with PCOS was determined by a,a-diphenyl-b-picrylhydrazylThe lower control limit of DPPH radical scavenging capacity and upper control limit of ROS level wereThese cut-off values of free radical scavenging activity of follicular fluid could assist embryologists

Keywords： in vitro fertilization PCOS free radical embryo quality

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Corrigendum to ‘‘A High-Efficiency Two-Stroke Engine Concept: The Boosted Uniflow Scavenged Direct-Injection

Xinyan Wang, Hua Zhao

Engineering 2019, Volume 5, Issue 5, Pages 979-979 doi: 10.1016/j.eng.2019.08.004

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An experimental study of a single-piston free piston linear generator

Jin XIAO, Yingdong CHENG, Jinlong WANG, Chengwei ZHU, Zhen HUANG

Frontiers in Energy 2022, Volume 16, Issue 6, Pages 916-930 doi: 10.1007/s11708-022-0838-4

Abstract: The root cause of this misfire was then identified as the poor scavenging process, and a compressed airsource was leveraged to enhance the related scavenging pressure.Afterward, optimal control parameters, in terms of scavenging pressure, air-fuel equivalence ratio, andignition position, were then calibrated in this charged-scavenging condition.

Keywords： free piston linear generator (FPLG) charged scavenging engine control misfire stable operation

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Scavenging Microwave Wireless Power: A Unified Model, Rectenna Design Automation, and Cutting-Edge Techniques Review

Si-Ping Gao, Jun-Hui Ou, Xiuyin Zhang, Yongxin Guo

Engineering 2023, Volume 30, Issue 11, Pages 32-48 doi: 10.1016/j.eng.2023.05.019

Abstract:

While sufficient review articles exist on inductive short-range wireless power transfer (WPT), long-haul microwave WPT (MWPT) for solar power satellites, and ambient microwave wireless energy harvesting (MWEH) in urban areas, few studies focus on the fundamental modeling and related design automation of receiver systems. This article reviews the development of MWPT and MWEH receivers, with a focus on rectenna design automation. A novel rectifier model capable of accurately modeling the rectification process under both high and low input power is presented. The model reveals the theoretical boundary of radio frequency-to-direct current (dc) power conversion efficiency and, most importantly, enables an automated system design. The automated rectenna design flow is sequential, with the minimal engagement of iterative optimization. It covers the design automation of every module (i.e., rectifiers, matching circuits, antennae, and dc–dc converters). Scaling-up of the technique to large rectenna arrays is also possible, where the challenges in array partitioning and power combining are briefly discussed. In addition, several cutting-edge rectenna techniques for MWPT and MWEH are reviewed, including the dynamic range extension technique, the harmonics-based retro-directive technique, and the simultaneous wireless information and power transfer technique, which can be good complements to the presented automated design methodology.

Keywords： Microwave wireless power transfer Microwave wireless energy harvesting Unified Rectifier model Automated rectenna design Emerging rectenna techniques