Results 61 to 70 of about 220,607 (288)

Actuation of Cell Layers in Three Dimensions

Advanced Materials, EarlyView.
ABSTRACT The alignment of fibers and cells in living tissues affect their mechanical properties and functionality. In this context, one can draw an analogy between tissues and nematic liquid crystal elastomers. We explore this analogy by growing fibroblasts on 2D‐patterned substrates and observing the contraction of cell sheets upon detachment from the
Kirsten Endresen, Aniruddh Murali, Birte C. Geerds, Grecia M. Valenzuela Portillo, Maria Bloksgaard, Daniel J.G. Pearce, Francesca Serra   +6 more
wiley   +1 more source

Merging Data from Large and Small Telescopes – Good or Bad? And: How Useful is the Application of Statistical Weights to Time-Series Photometric Measurements?

Open Astronomy, 2003
I have investigated the value of the contribution of small telescopes to the success of a whole WET run. To this end, I have applied different data weighting schemes to two extreme WET test data sets. I find that weights proportional to the inverse local
Handler G.
doaj   +1 more source

Degradation Mechanisms in PEM Water Electrolysis: Diagnosis and Impact

Advanced Materials Technologies, EarlyView.
This review provides an analysis of degradation mechanisms in proton electrolyte membrane water electrolyzers (PEMWE), focusing on all key components. It discusses diagnostic and measurement techniques for evaluating degradation, less‐studied mechanisms, and an expert survey.
Annik Bernhardt, Katja Lange, Robert Göckeritz, Erik Grunwald, Angelika Hähnel, Alexander Müller, Volker Naumann, Sistan Rasuli, Wolfram Münchgesang, Bruno G. Pollet, Kerstin Witte‐Bodnar, Klemens Ilse   +11 more
wiley   +1 more source

High-Precision UBVRI Photometry with a New 50 Cm Telescope at Stará Lesná

Open Astronomy, 2003
The paper presents the experience, observations and results obtained with the new 50 cm photometric telescope at the Stará Lesná Observatory equipped with an SBIG ST10MXE CCD camera.
Pribulla T., Chochol D.
doaj   +1 more source

Near-Infrared Survey and Photometric Redshifts in the Extended GOODS-North field

, 2018
We present deep $J$ and $H$-band images in the extended Great Observatories Origins Deep Survey-North (GOODS-N) field covering an area of 0.22 $\rm{deg}^{2}$.
Ashby, Matthew L. N., Bau-Ching, Hsieh, Chen, Yi-Wen, Daddi, Emanuele, Dickinson, Mark, Elbaz, David, Fazio, Giovanni G., Foucaud, Sebastien, Hsu, Li-Ting, Huang, Jiasheng, Koo, David C., Lee, Chien-Hsiu, Lin, Lihwai, Morrison, Glenn, Ouchi, Masami, Owen, Frazer, Pannella, Maurilio, Pope, Alexendra, Scott, Douglas, Simard, Luc, Wang, Shiang-Yu, Wang, Wei-Hao, Willner, S. P., Yan, Chi-Hung, Yan, Haojing   +24 more
core   +1 more source

Polarisation photometric stereo [PDF]

Computer Vision and Image Understanding, 2017
This paper concerns a novel approach to fuse two-source photometric stereo (PS) data with polarisation information for complete surface normal recovery for smooth or slightly rough surfaces. PS is a well-established method but is limited in application by its need for three or more well-spaced and known illumination sources and Lambertian reflectance ...
openaire   +1 more source

UTact: Underwater Vision‐Based Tactile Sensor with Geometry Reconstruction and Contact Force Estimation

Advanced Robotics Research, EarlyView.
Embedded flexible sensing technologies advance underwater soft robotics, yet most systems still suffer from hysteresis and limited perceptiveness. Instead, vision‐based tactile sensors provide reliable and rapid feedback essential for complex underwater tasks.
Qiyi Zhang, Zonghao Zuo, Haoxuan Wang, Bin Liu, Yilidusi Yilihamu, Li Wen   +5 more
wiley   +1 more source

Principles and Applications of the Synchronous Network of Remote Telescopes

Open Astronomy, 2003
A new approach for the search of microvariability and high-speed phenomena in variable stars is presented. It gives a new technology of observation and analysis of the data.
Zhilyaev B. E., Romanyuk Ya. O., Svyatogorov O. A., Verlyuk I. A.   +3 more
doaj   +1 more source

Robust Photometric Stereo Using Learned Image and Gradient Dictionaries

, 2017
Photometric stereo is a method for estimating the normal vectors of an object from images of the object under varying lighting conditions. Motivated by several recent works that extend photometric stereo to more general objects and lighting conditions ...
Moore, Brian E., Nadakuditi, Raj Rao, Wagenmaker, Andrew J.   +2 more
core   +1 more source

Photometric stereo endoscopy [PDF]

Journal of Biomedical Optics, 2013
While color video endoscopy has enabled wide-field examination of the gastrointestinal tract, it often misses or incorrectly classifies lesions. Many of these missed lesions exhibit characteristic three-dimensional surface topographies. An endoscopic system that adds topographical measurements to conventional color imagery could therefore increase ...
Parot Fernández, Vicente José, Lim, Daryl, González, Germán, Traverso, Giovanni, Nishioka, Norman S., Vakoc, Benjamin J., Durr, Nicholas J.   +6 more
openaire   +4 more sources