Results 51 to 60 of about 207,008 (281)

A Universal van der Waals Tunneling Injector for Monolayer CMOS

open access: yesAdvanced Materials, EarlyView.
A universal van der Waals injector unlocks polarity‐flexible tunneling contacts for monolayer CMOS. SnSe2, an intrinsically degenerate 2D semiconductor, establishes polarity‐specific band alignments with both WSe2 and MoS2 channels, enabling steep switching, high on/off ratios, and a unified route to low‐power 2D logic.
Hanbin Cho   +17 more
wiley   +1 more source

Poly(Alkoxythiophene) Rod‐Coil Block Copolymers for Organic Electrochemical Transistors

open access: yesAdvanced Materials, EarlyView.
We present the first synthesis of poly(3‐alkoxythiophene) rod‐coil block copolymers as a new architecture for OMIECs. Incorporating PEG and PLLA coils can enhance device performance beyond the homopolymer. The figure‐of‐merit depends uniquely on coil length.
Junfu Tian   +23 more
wiley   +1 more source

Metro Tunnel Shield Construction in Highly Water-rich Karst Strata

open access: yesChengshi guidao jiaotong yanjiu
[Objective] When a shield tunneling machine passes through highly water-rich karst development regions in shallow strata, the presence of karst cavities poses significant challenges to land subsidence control, creating potential risks to the safety of ...
ZHAO Heming
doaj   +1 more source

Soil conditioning for EPB shield tunnelling

open access: yesKSCE Journal of Civil Engineering, 2014
The use of conditioning agents that change the mechanical and hydraulic behavior of a cohesionless soil into an impervious and plastic paste is the key point for the correct management of EPB (Earth Pressure Balance) shield tunneling. The design of soil conditioning sets and the choice of the best products to be used require special laboratory tests ...
openaire   +3 more sources

Recent Advances in Light‐Addressable Electrochemistry for Spatially Resolved Applications

open access: yesAdvanced Materials Technologies, EarlyView.
This comprehensive review highlights light‐addressable electrochemistry as a powerful tool that uses light to control localized chemical reactions on unstructured semiconductor surfaces. The work evaluates advanced strategies to optimize electrode materials for enhanced spatial resolution and stability. Furthermore, it showcases diverse applications in
Nhi Trang Vo   +2 more
wiley   +1 more source

Tunneling and Propping: A Justification for Pyramidal Ownership [PDF]

open access: yes
This paper presents a formal model of tunneling and propping in a pyramidal ownership structure. Tunneling refers to controlling shareholders shifting resources from one firm to another in the same pyramid.
Yohanes E. Riyanto, Linda A. Toolsema
core   +2 more sources

Collision‐Resilient Winged Drones Enabled by Tensegrity Structures

open access: yesAdvanced Robotics Research, EarlyView.
Based on structures of birds such as the woodpeck, this article presents the collision‐resilient aerial robot, SWIFT. SWIFT leverages tensegrity structures in the fuselage and wings which allow it to undergo large deformations in a crash, without sustaining damage. Experiments show that SWIFT can reduce impact forces by 70% over conventional structures.
Omar Aloui   +5 more
wiley   +1 more source

Flexible Sensors for Robotics Tactile Perception: A Review

open access: yesAdvanced Robotics Research, EarlyView.
Flexible tactile sensing for robotics is reviewed through four interconnected dimensions. Physical mechanisms include piezoresistive, capacitive, piezoelectric, triboelectric, iontronic, and optical sensing. Structural design includes bioinspired, defect‐based, and MEMS‐based tactile systems.
Yu Song, Ying Chen, Yihao Chen, Xue Feng
wiley   +1 more source

Protection Measures for Shield Tunneling Closely Under-passing Operating Metro Tunnels in Water-rich Soft Soil Area

open access: yesChengshi guidao jiaotong yanjiu
[Objective] In water-rich soft soil areas, it is difficult to control the deformation of the existing operating metro tunnel structure caused by the construction of the shield tunneling closely under-passing.
MA Xifeng   +5 more
doaj   +1 more source

Tunneling times and excited state interactions between chromophores [PDF]

open access: yes, 2001
This Thesis consists of two related parts. The first part (Chapters 2 and 3) presents the results of a fundamental theoretical study of the interpretation of quantum mechanics, and particularly of tunneling processes.
Stomphorst, R.
core  

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