Results 71 to 80 of about 57,058 (352)

Optimizing Metal‐Perovskite Interfaces: Electronic and Transport Properties of Au‐Bromide Perovskites Contacts

open access: yesAdvanced Electronic Materials, EarlyView.
This study examines metal–perovskite interfaces in 2D (BA)2PbBr4 and (PEA)2PbBr4 using first‐principles and NEGF methods. It compares top‐ and edge‐contact configurations, revealing Schottky barriers in top contacts and ohmic behavior in edge contacts.
Xinbiao Wang   +6 more
wiley   +1 more source

Large‐Diameter DNA‐Scaffolded Nanopores Enabled by Loosely Packed Peptides for Single‐Molecule Sensing

open access: yesAngewandte Chemie, EarlyView.
A nanopore composed of transmembrane peptides and a DNA scaffold that assists peptide assembly was constructed. By employing peptides containing the unnatural amino acid 2‐aminoisobutyric acid (Aib), which promotes loose packing between helices, a large‐diameter nanopore was achieved.
Zugui Peng   +3 more
wiley   +2 more sources

Automatic segment erection system for shield tunnels

open access: yesAdvanced Robotics, 1990
Shield tunnelling is now the practice most frequently used in the tunnelling of urban areas. This paper discusses an automatic segment erection system developed for the unmanned implementation of the shield method. The system is composed of a segment erection robot and an automatic segment feeder; the former assembles segments which prevent the ...
openaire   +2 more sources

Fundamental Challenges, Physical Implementations, and Integration Strategies for Ising Machines in Large‐Scale Optimization Tasks

open access: yesAdvanced Electronic Materials, EarlyView.
Ising machines are emerging as specialized hardware solvers for computationally hard optimization problems. This review examines five major platforms—digital CMOS, analog CMOS, emerging devices, coherent optics, and quantum systems—highlighting physics‐rooted advantages and shared bottlenecks in scalability and connectivity.
Hyunjun Lee, Joon Pyo Kim, Sanghyeon Kim
wiley   +1 more source

Supramolecular Modulation of Photoinduced Charge Transfer: Tuning Between Tunneling and Incoherent Hopping

open access: yesAngewandte Chemie, EarlyView.
Molecular recognition guest binding can comprehensively modulate photoinduced charge‐transfer dynamics in the cyclophane host, including charge separation and recombination, via coherent superexchange and incoherent hopping. Unlike covalent donor–bridge–acceptor systems, this supramolecular approach avoids tedious syntheses and offers precise tuning of
Xueze Zhao   +11 more
wiley   +2 more sources

THE CHARACTERISTICS OF MATERIAL SEPARATION OF MIXTURE OF FOAM SHIELD TUNNELING SURPLUS EXCAVATION SOIL AND STEELMAKING SLAG UNDER WATER CASTING

open access: diamond, 2021
Takamune Yamaguchi   +5 more
openalex   +1 more source

Emerging Memory and Device Technologies for Hardware‐Accelerated Model Training and Inference

open access: yesAdvanced Electronic Materials, EarlyView.
This review investigates the suitability of various emerging memory technologies as compute‐in‐memory hardware for artificial intelligence (AI) applications. Distinct requirements for training‐ and inference‐centric computing are discussed, spanning device physics, materials, and system integration.
Yoonho Cho   +6 more
wiley   +1 more source

Research Progress and Applications of Non‐Carrier‐Injection Electroluminescence

open access: yesAdvanced Electronic Materials, EarlyView.
Non‐carrier‐injection electroluminescence (NCI‐EL) uses AC fields and displacement currents to trigger light from internal charge reservoirs, enabling minimalist emitters with remotely coupled terminals. This review maps shared mechanisms across organics, GaN, quantum dots, and TMDCs, compares planar, interdigital, single‐terminal, and coaxial designs,
Wei Huang   +6 more
wiley   +1 more source

Management-control Measures for Shield Tunnel Construction Safety of Suburban Railway in Water-rich Soft Soil Strata

open access: yesChengshi guidao jiaotong yanjiu
ObjectiveThe civil works of section SG1 of Jiaxing-Fengnan Suburban Railway are located within water-rich soft soil strata,where shield tunnel construction faces numerous challenges.
Yali LIU, Weijie JIANG, Baoliang WANG
doaj   +1 more source

Viking entry aerodynamics and heating [PDF]

open access: yes, 1974
The characteristics of the Mars entry including the mission sequence of events and associated spacecraft weights are described along with the Viking spacecraft.
Polutchko, R. J.
core   +1 more source

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