Results 131 to 140 of about 46,867 (308)

n‐Type Polymer Radio Frequency Rectifiers Operating at 18.5 GHz

open access: yesAdvanced Materials, EarlyView.
Combining an n‐doped polymer semiconductor with wafer‐scale asymmetric planar electrodes featuring work function‐engineered contacts yields radio‐frequency diodes and rectifying circuits operating at up to 18.5 GHz. The devices combine scalable manufacturing with an operating frequency previously unattainable by large‐area organic electronics ...
Lazaros Panagiotidis   +19 more
wiley   +1 more source

Shear properties of jointed dual-pylon of the cable-stayed bridge with separated unequal-width decks under asymmetric load

open access: yesAdvances in Bridge Engineering
The significant load disparity between the two decks of a cable-stayed bridge with separated unequal-width decks results in complex asymmetric static effects in the jointed dual-pylon.
Chao Luo   +5 more
doaj   +1 more source

SPS main tunnel [PDF]

open access: yes, 1974
Main tunnel - civil engineering work ...
CERN PhotoLab
core  

Neuromorphic Electronics for Intelligence Everywhere: Emerging Devices, Flexible Platforms, and Scalable System Architectures

open access: yesAdvanced Materials, EarlyView.
The perspective presents an integrated view of neuromorphic technologies, from device physics to real‐time applicability, while highlighting the necessity of full‐stack co‐optimization. By outlining practical hardware‐level strategies to exploit device behavior and mitigate non‐idealities, it shows pathways for building efficient, scalable, and ...
Kapil Bhardwaj   +8 more
wiley   +1 more source

DEVELOPMENT AND PROSPECT OF ROOT PILES IN TUNNEL FOUNDATION REINFORCEMENT [PDF]

open access: yesCivil Engineering Journal, 2017
Over the past couple of decades, root piles as the new tool for addressing a number of tough problems have been gaining a continually increasing interest in tunnel, especially for complex geological conditions.
Hao Ding   +3 more
doaj  

Measurement and Modeling of Subway Near Shadowing Phenomenon. [PDF]

open access: yes, 2010
This paper focuses on one vital aspect in propagation characteristics inside subway tunnels: near shadowing phenomenon in a practical environment.
Zhong, Zhangdui   +3 more
core   +1 more source

Advancing Sustainability in Geotechnical Engineering [PDF]

open access: yes
Geotechnical engineering is a key element for all engineering construction that establishes contact with the earth, including foundation engineering, slope engineering, tunnel engineering, mining engineering, etc [...
Chen Cao, Hongwei Yang, Shuren Wang
core   +1 more source

When Poor Exciton Dissociation Limits Photocurrents in Organic Solar Cells: Why Low Offset Non‐Fullerene Acceptor Blends Can't Be Efficient

open access: yesAdvanced Materials, EarlyView.
The energetic offset between the donor and the acceptor components in organic photoactive layers is central to the tradeoff between photovoltage and photocurrent losses. This Perspective covers the most important issues surrounding this topic in non‐fullerene acceptor blends, from the difficulty of accurately determining state energies and driving ...
Dieter Neher, Manasi Pranav
wiley   +1 more source

Rethinking Charge Transport and Recombination in Donor‐Diluted Organic Solar Cells

open access: yesAdvanced Materials, EarlyView.
Organic solar cells with 1–45% PM6 content in Y12 were studied to link structure and charge dynamics to performance. The conductivity follows a 3D percolation model without a sharp threshold. Donor dilution preserves the photogeneration yield, but limits the fill factor due to transport resistance losses.
Chen Wang   +14 more
wiley   +1 more source

Tunnel Face Image Segmentation Optimization [PDF]

open access: yes, 2014
With the development of Transportation Highway and railroad build, mining tunnel geological exploration in the road construction in the proportion of great.
Cheng, Du, Biao, Leng
core   +1 more source

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