Results 81 to 90 of about 64,455 (258)

Facet‐Specific PbS Quantum Dot Passivation Using Halide Perovskites for SWIR Photodetectors

Advanced Materials Interfaces, EarlyView.
PbS quantum dots (QDs) are emerging as powerful short‐wave infrared photodetectors, yet the passivation mechanism of large QDs by perovskites ‐ critical for their stability ‐ remains unexplained. Here, we unveil the ligand structure of CH3NH3PbI3 (MAPI)‐passivated 4‐nm PbS QDs using FTIR, XPS, SEM, NMR, and DFT.
L. Paillardet, M. Gromova, D. Liu, A. S. Vasenko, O. V. Prezhdo, S. Alarab, G. De Paëpe, G. Lefevre, S. Charlot, O. Gourhant, B. Mortini, P. Reiss, J.‐M. Verilhac, D. Aldakov   +13 more
wiley   +1 more source

Model test study of failure modes of surrounding rock for circular caverns

, 2011
For studying the deformation and failure modes of tunnel surrounding rock systematically under different continuum media, model tests have been performed on artificial cohesive material and artificial sandy materials.
Zhang, Dingli, Li, Qianqian, Wong, Louis Ngai Yuen, Fang, Qian, Li, Pengfei   +4 more
core  

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

Dynamic Response Characteristics of Roadway Surrounding Rock and the Support System and Rock Burst Prevention Technology for Coal Mines

, 2022
Anchor cables (bolts) act as the main support system and play an important role in improving the rock burst resistance and stability of the roadway surrounding the rock.
Mingshi Gao, Dong Xu, Xin Yu
core   +1 more source

Additive Manufacturing of Patient‐Specific Intracranial Aneurysm Cell Culture Models

Advanced Materials Technologies, EarlyView.
Patient‐specific intracranial aneurysm models were fabricated using chocolate moulding, 3D printed water‐soluble cores, and direct resin 3D printing. Moulding PDMS around sacrificial cores made of chocolate or 3D printed water‐soluble resin yielded accurate, expandable, and endothelializable models that outperformed resin‐based approaches.
Chloe M. de Nys, Jaimee‐Lee Wood, James I. Novak, Danilo Carluccio, Craig D. Winter, Ashley R. Murphy, Mark C. Allenby   +6 more
wiley   +1 more source

Study on deformation law of roadway surrounding rock under dynamic disturbance

Meikuang Anquan
The surrounding rock is in a state of high stress during deep mining of coal mine, and the dynamic disturbance may lead to the instability of the surrounding rock and even rock burst.
Mingkun LUO, Liqiang SONG, Siqi LI, Dongdong SONG, Anchang LAN, Ce JIA, Sheng LI, Zhenhua YANG, Changyou WANG   +8 more
doaj   +1 more source

Pré-dimensionamento e análise numérica de estruturas de suporte auxiliares de um projeto metroviário [PDF]

, 2014
TCC (graduação) - Universidade Federal de Santa Catarina. Centro Tecnológico. Engenharia Civil.O modal metroviário se destaca como uma interessante solução para a mitigação dos problemas de mobilidade urbana.
Baldissera, Uther
core  

Deformation of rock surrounding a tunnel over time.

, 2021
Deformation of rock surrounding a tunnel over time.
Jianjun Zhang (220300), Yunhe Ao (11337712), Chuang Sun (213722), Chunzhe Jin (11337715), Baicong Yao (11337709)   +4 more
core   +1 more source

Collision‐Resilient Winged Drones Enabled by Tensegrity Structures

Advanced 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, Raphael Zufferey, William Stewart, Mohammad Askari, Simon Jeger, Dario Floreano   +5 more
wiley   +1 more source

3D Printing of Soft Robotic Systems: Advances in Fabrication Strategies and Future Trends

Advanced Robotics Research, EarlyView.
Collectively, this review systematically examines 3D‐printed soft robotics, encompassing material selections, function integration, and manufacturing methodologies. Meanwhile, fabrication strategies are analyzed in order of increasing complexity, highlighting persistent challenges with proposed solutions.
Changjiang Liu, Bin Cui, Xumin Huang, Xiaoyu (Rayne) Zheng, T. Thang Vo‐Doan, Ruirui Qiao   +5 more
wiley   +1 more source