Results 191 to 200 of about 2,255,413 (373)

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

Advanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai, Md Shakhawath Hossain, Nhat Minh Nguyen, Yongliang Chen, Chaohao Chen, Xiaoxue Xu, Quang Thang Trinh, Toan Dinh, Toan Trong Tran   +8 more
wiley   +1 more source

OPERANT MEASUREMENT OF SUBJECTIVE VISUAL ACUITY IN NON‐VERBAL CHILDREN¹ [PDF]

, 1971
Joel Macht
openalex   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

COMMENTS ON THE BETTS STEREOSCOPIC VISUAL ACUITY CHARTS

, 1941
Carel C. Koch
openalex   +1 more source

Objective determination of human visual acuity from the visual evoked potential [PDF]

, 1979
Vernon L. Towle, M. Russell Harter
openalex   +1 more source

Identification and Reversible Optical Switching of NV+ Centers in Diamond

Advanced Functional Materials, EarlyView.
NV+ centers in diamond are predicted to coexist with NV0 and NV– centers, but direct experimental confirmation remains challenging. Using positron annihilation spectroscopy with in situ light illumination, a charge transition NV+/0 is observed at 1.234(8) eV.
Marcel Dickmann, Lucian Mathes, Ricardo Helm, Vassily Vadimovitch Burwitz, Werner Egger, Johannes Mitteneder, Christoph Hugenschmidt, Peter Sperr, Maik Butterling, Maciej Oskar Liedke, Andreas Wagner, Joachim Dorner, Thomas Schwarz‐Selinger, Günther Dollinger   +13 more
wiley   +1 more source

How to measure distance visual acuity

Community Eye Health Journal, 2014
Visual acuity (VA) is a measure of the ability of the eye to distinguish shapes and the details of objects at a given distance. It is important to assess VA in a consistent way in order to detect any changes in vision. One eye is tested at a time.
Janet Marsden , Sue Stevens , Anne Ebri
doaj  

Visual acuity and colour sensation through fog (3)

, 1952
Hisao Kabayama
openalex   +2 more sources

Retinal locus and acuity in visual information processing [PDF]

, 1977
Charles W. Eriksen, Derek W. Schultz
openalex   +1 more source

Compositing Effect Leads to Extraordinary Performance in GeSe‐Based Thermoelectrics

Advanced Functional Materials, EarlyView.
Rhombohedral GeSe is rationally designed with (GeSe)0.9(AgBiTe2)0.1‐1.5 mol.% SnSe, achieving a peak ZT of 1.31 at 623 K. Forming a composite with SnSe establishes interfaces with strong phonon scattering and weak electron scattering. Multiscale defects lead to an ultra‐low lattice thermal conductivity (0.26 W m−1 K−1), approaching the amorphous limit.
Min Zhang, Xiao‐Lei Shi, Siqi Liu, Raza Moshwan, Tianyi Cao, Wenyi Chen, Yongqi Chen, Meng Li, Chenyang Zhang, Nanhai Li, Boxuan Hu, Wanyu Lyu, Wei‐Di Liu, Guihua Tang, Zhi‐Gang Chen   +14 more
wiley   +1 more source