Results 41 to 50 of about 42,000 (191)

Benchmarking Coaxial and Angular Optical Emission Spectroscopy With Recommendations for Reliable Compositional In Situ Monitoring During Laser Powder Bed Fusion

Advanced Materials Technologies, EarlyView.
ABSTRACT Real‐time insight into local chemistry is critical for reliable part quality in additive manufacturing, especially laser powder bed fusion (PBF‑LB/M), where rapid thermal cycles and localized evaporation can undermine part performance. Optical emission spectroscopy (OES) offers non‑intrusive, in situ plume monitoring, but detection geometry ...
Philipp Gabriel, Bastian Jülich, Anna Rosa Ziefuss, Florian Eibl, Stephan Barcikowski   +4 more
wiley   +1 more source

Measuring Pancharatnam's relative phase for SO(3) evolutions using spin polarimetry

, 2003
In polarimetry, a superposition of internal quantal states is exposed to a single Hamiltonian and information about the evolution of the quantal states is inferred from projection measurements on the final superposition. In this framework, we here extend
A. Tomita, A.G. Wagh, A.G. Wagh, A.G. Wagh, A.G. Wagh, Arvind, B.C. Sanders, C.L. Webb, D.J. Richardson, Erik Sjöqvist, G. Khanna, J. Samuel, M.V. Berry, N. Mukunda, Peter Larsson, S. Pancharatnam, T. Bitter, V.C. Rakhecha   +17 more
core   +1 more source

Linking Device Performance to Nanoscale Photoactivation of Grain Boundaries in 2D Hybrid Halide Perovskites

Advanced Materials Technologies, EarlyView.
The opto‐electronic response of polycrystalline (PEA)2PbBr4 thin films is investigated by correlating macroscopic photodetector performance with nanoscale mapping techniques. Grain boundary density is systematically tuned through crystallization control and linked to device responsivity.
Camilla Bordoni, Lorenzo Calcaterra, Andrea Ciavatti, Silvia Milita, Valentina Bonino, Lorenzo Margotti, Sara Cepić, Marisa Di Sabatino, Federico Boscherini, Daniela Cavalcoli, Beatrice Fraboni   +10 more
wiley   +1 more source

Algorithm and performance of a clinical IMRT beam-angle optimization system

, 2003
This paper describes the algorithm and examines the performance of an IMRT beam-angle optimization (BAO) system. In this algorithm successive sets of beam angles are selected from a set of predefined directions using a fast simulated annealing (FSA ...
Bortfeld T, Bortfeld T Stein J Preiser K, Braunstein M, Chuang K S, Crooks S M, Das S, David Djajaputra, Geman S, Jackson A, Kirkpatrick S, Llacer J, Mageras G S, Metropolis N, Oldham M, Pugachev A, Pugachev A B, Qiuwen Wu, Radhe Mohan, Rowbottom C G, Rowbottom C G, Rowbottom C G, Spirou S V, Stein J, Webb S, Webb S, Wu Q, Wu Q, Xiang Y, Xing L, Yan Wu   +29 more
core   +1 more source

Hard‐Magnetic Soft Millirobots in Underactuated Systems

Advanced Robotics Research, EarlyView.
This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang, Zixuan Zhang, Bingyan Li, Junkai Wang, Hongcheng Gu   +4 more
wiley   +1 more source

Diffraction-Attenuation Resistant Beams: their Higher Order Versions and Finite-Aperture Generations

, 2010
Recently, a method for obtaining diffraction-attenuation resistant beams in absorbing media was developed through suitable superposition of ideal zero-order Bessel beams. In this work, we will show that such beams maintain their resistance to diffraction
Besieris, Bouchal, Conti, Durnin, Kukhlevsky, Longhi, Lu, Mugnai, Porras, Recami, Saari, Sheppard, Sheppard, Zamboni-Rached, Zamboni-Rached, Zamboni-Rached, Zamboni-Rached, Zamboni-Rached, Zamboni-Rached, Zamboni-Rached, Zamboni-Rached, Zamboni-Rached, Zamboni-Rached, Zamboni-Rached, Zamboni-Rached, Zamboni-Rached, Zamboni-Rached, Ziolkowski   +27 more
core   +1 more source

Cryo‐EM Structure Guided Engineering of Botulinum Neurotoxin A With Advanced Receptor Binding Affinity and Therapeutical Benefits

Advanced Science, EarlyView.
The butterfly unfolded wing in an open form structure of botulinum neurotoxin type A (BoNT/A) at physiological‐state was confirmed at 2.85 Å resolution by cryo‐electron microscopy (cryo‐EM). Structure‐guided protein engineering significantly enhanced the receptor‐binding affinity, therapeutic efficacy, and safety of the engineered toxin variants ...
Wenrui Wang, Zhaxi Zerang, Linjin You, Ziye Liu, Rong Nie, Fuwei Qi, Fenfen Gao, Chengmu Zhao, Wantong Ma, Jinghan He, Xiaoru Wang, Shanquan Wu, Bo Liu, Xinyao Liu, Dongsheng Lei, Dejuan Zhi, Dongsheng Wang   +16 more
wiley   +1 more source

Helicity Maximization of Structured Light to Empower Nanoscale Chiral Matter Interaction

, 2018
Structured light enables the characterization of chirality of optically small nanoparticles by taking advantage of the helicity maximization concept recently introduced in[1].
Albooyeh, Mohammad, Capolino, Filippo, Hanifeh, Mina   +2 more
core   +2 more sources

Displacive In‐Plane Ferroelectricity with Domain‐Specific Curie Temperature in Van der Waals Semiconductors

Advanced Science, EarlyView.
Temperature‐dependent electron diffraction on tin monochalcogenides demonstrates a gradual displacive transformation between ferroelectric and paraelectric phases with significant variability in lattice constants and Curie temperature (TC). Periodic variations exist even between domains in individual crystals, implying a domain‐specific Curie ...
Peter Sutter, Eli Sutter
wiley   +1 more source

Rigid‐Flexible Coupling Units Enable Robust Large Birefringence

Advanced Science, EarlyView.
A rigid–flexible coupling strategy, combining flexible (S3)2− linear units with rigid (VO4)3− tetrahedra, yields Sr4(VO4)2S3—a robust crystal exhibiting large birefringence (Δn = 0.52@550 nm) and remarkable thermal, air, and water stability. ABSTRACT Birefringent crystals are central to polarization control in laser technologies (e.g., wave plates and ...
Jie Zhou, Yanqiang Li, Ji Qi, Weiqi Huang, Liangmeng Zhu, Zhiyong Bai, Yang Zhou, Junhua Luo, Sangen Zhao   +8 more
wiley   +1 more source