Results 21 to 30 of about 5,271 (155)

Arrangement of a 4Pi microscope for reducing the confocal detection volume with two-photon excitation [PDF]

, 2006
The main advantage of two-photon fluorescence confocal microscopy is the low absorption obtained with live tissues at the wavelengths of operation. However, the resolution of two-photon fluorescence confocal microscopes is lower than in the case of one ...
Bohmer, Denk, Egner, Enderlein, Gugel, Gustafsson, Hell, Hell, Hugues Giovannini, Lenne, Martinez-Corral, Martini, Masuda, Nagorni, Nicolas Sandeau, Richards, Sandeau, Sheppard, Sheppard, Stelzer, Wawrezinieck, Wawrezinieck   +21 more
core   +4 more sources

Multi-Sensor Registration in High-Precision CMM Based on a Composite Standard

Sensors, 2018
Registration is a critical step in multi-sensor dimensional measurement. As the accuracy of registration directly impacts the quality of final results, a reference sphere as a common standard is problematic in high-precision registration.
Yan Zhao, Yiwen Wang, Xiuling Ye, Zhong Wang, Luhua Fu, Changjie Liu, Zhiwei Wang   +6 more
doaj   +1 more source

Achromatized endomicroscope objective for optical biopsy [PDF]

, 2013
Currently, researchers and clinicians lack achromatized endomicroscope objectives that are as narrow as biopsy needles. We present a proof-of-concept prototype that validates the optical design of an NA0.4 objective.
Bini, Birch, Bozinovic, Chia, Chidley, Cui, Gareau, Greisukh, Göbel, Jung, Kester, Kim, Kyrish, Laemmel, Landau, Leiner, Mariuzzi, McCall, Muldoon, Muldoon, Muldoon, Myaing, Osdoit, Rouse, Sung, Tkaczyk, Tot, Tumlinson, Wang, Wu, Zhao   +30 more
core   +1 more source

Ultra-high precision CMMs and their associated tactile or/and optical scanning probes

International Journal of Metrology and Quality Engineering, 2014
Optical and tactile single scanning probes usually are used in dimensional metrology applications, especially for roughness, form, thickness and surface profile measurements.
Nouira H., Bergmans R.H., Küng A., Piree H., Henselmans R., Spaan H.A.M.   +5 more
doaj   +1 more source

Differences of size and shape of active and inactive X-chromosome domains in human amniotic fluid cell nuclei [PDF]

, 1993
It is a widely held belief that the inactive X-chromosome (Xi) in female cell nuclei is strongly condensed as compared to the largely decondensed active X-chromosome (Xa).
Barr, Brakenhoff, Brakenhoff, Collins, Comings, Cremer, Cremer, Cremer, Cremer, Cremer, Dyer, Dyer, Gartler, Geiger, Grumbach, Hens, Johnson, Krystosek, Leitch, Lichter, Lyon, Manuelidis, Morton, Ohno, Pinkel, Pinkel, Popp, Rosenfeld, Schardin, Shotton, Stelzer, Stelzer, Taylor, Therman, Therman, van Dekken, Visser, Vogel, Walker, Zorn   +39 more
core   +1 more source

A Portable, High Resolution, Surface Measurement Device [PDF]

, 2013
A high resolution, portable, surface measurement device has been demonstrated to provide micron-resolution topographical plots. This device was specifically developed to allow in-situ measurements of defects on the Space Shuttle Orbiter windows, but is ...
Burns, Bradley M., Ihlefeld, Curtis M., Youngquist, Robert C.   +2 more
core   +2 more sources

High-Throughput Nonlinear Optical Microscopy [PDF]

, 2013
High-resolution microscopy methods based on different nonlinear optical (NLO) contrast mechanisms are finding numerous applications in biology and medicine.
Rowlands, Christopher, So, Peter T. C., Yew, Elijah Y.S., Yew, Yan Seng Elijah   +3 more
core   +1 more source

Spiro‑Linked Double Tetraphenylethenes: Solid‐State Emission and Circularly Polarized Luminescence Imaging

Angewandte Chemie, EarlyView.
Two spirobisanthracene‐tetraphenylethene (SBA‐TPE) hybrid compounds are synthesized and their photophysical properties in the solid state reported. Circularly polarized luminescence in aggregates, films and dispersions is evaluated. Circularly polarized luminescence imaging is evaluated over crystals revealing discrimination of different types of ...
José L. Páez, Riccardo Rubino, Giulia Micolonghi, Marco Reale, Alice Sciortino, Victor Blanco, Angel Orte, Carlos M. Cruz   +7 more
wiley   +2 more sources

Global Connectivity and Function of Descending Spinal Input Revealed by 3D Microscopy and Retrograde Transduction [PDF]

, 2018
The brain communicates with the spinal cord through numerous axon tracts that arise from discrete nuclei, transmit distinct functions, and often collateralize to facilitate the coordination of descending commands.
Blackmore, Murray G., Maunze, Brian, Tsoulfas, Pantelis, Wang, Yunfang, Wang, Zimei   +4 more
core   +2 more sources

Bio‐Inspired Magnetically Tunable Structural Colors from Elliptical Self‐Assembled Block Copolymer Microparticles

Advanced Functional Materials, EarlyView.
Cephalopod‐inspired photonic microparticles with dynamic structural coloration are fabricated via confined self‐assembly of linear block copolymers into ellipsoids containing stacked lamellae. Embedded superparamagnetic nanoparticles enable rapid magnetic alignment, restoring vivid, angle‐dependent color.
Gianluca Mazzotta, Simone Bertucci, Jose Mendoza‐Carreño, Agustín Mihi, Paola Lova, Davide Comoretto, Ullrich Steiner, Marco Lattuada, Andrea Dodero   +8 more
wiley   +1 more source