Results 71 to 80 of about 2,491,773 (298)

Floating-Point Computation with Just Enough Accuracy [PDF]

, 2006
Most mathematical formulae are defined in terms of operations on real numbers, but computers can only operate on numeric values with finite precision and range. Using floating-point values as real numbers does not clearly identify the precision with which each value must be represented.
Hank G. Dietz, Bill Dieter, Randy Fisher, Kungyen Chang   +3 more
openaire   +2 more sources

Analysing the significance of small conformational changes and low occupancy states in serial crystallographic data

FEBS Open Bio, EarlyView.
This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill, Yelyzaveta Pulnova, Elke De Zitter, Helen M. Ginn, Briony A. Yorke   +4 more
wiley   +1 more source

High-Precision Bi-Directional Beam-Pointing Measurement Method Based on Space Solar Power Station System

Sensors
In the process of wireless energy transmission from a Space Solar Power Station (SSPS) to a satellite, the efficiency of energy transmission is closely related to the accuracy of beam control.
Xinyue Hou, Xue Li, Shun Zhao, Yinsen Zhang, Lulu Wang   +4 more
doaj   +1 more source

Accuracy of pointing to invisible landmarks in a familiar environment

, 1997
Humans develop a mental representation of their environment that enables them to solve their day-to-day navigation tasks. The nature and quality of this representation can be probed experimentally by studying spatial tasks like distance and bearing ...
van Veen, H., Sellen, K., Bülthoff, H.
core   +1 more source

Optimizing photoactivation of PA‐mCherry for optical pooled CRISPR screens

FEBS Open Bio, EarlyView.
Photoactivatable PA‐mCherry finds widespread use to optically tag individual cells. However, confocal 405 nm UV laser‐scanning (normal scan) is much less efficient than widefield UV illumination, limiting the use of PA‐mCherry on confocal instruments. We remedy this limitation by reporting that rapid and repeated confocal scanning with a low‐intensity,
Sravasti Mukherjee, Giulia Zanetti, Bram van den Broek, Kees Jalink   +3 more
wiley   +1 more source

Intuitive 3D Control of a Quadrotor in User Proximity with Pointing Gestures (Dataset)

, 2020
The accompanying dataset and code for the ICRA 2020 publication: B. Gromov, J. Guzzi, L. Gambardella, and A. Giusti, "Intuitive 3D Control of a Quadrotor in User Proximity with Pointing Gestures," in 2020 IEEE International Conference on Robotics and ...
Gromov, Boris, Guzzi, Jérôme, Giusti, Alessandro, Gambardella, Luca Maria   +3 more
core   +1 more source

Refinement of amino‐acid conformation vs. difference density maps in time‐resolved serial femtosecond crystallography data analysis

FEBS Open Bio, EarlyView.
The dFoCC pipeline starts with observed DED and resting‐state coordinates, which are then used to generate a library of triggered states. Correlation analysis of the calculated DED features of each candidate vs observed DED permits quantitative evaluation of candidate structural quality.
Meng Iao Fong, Yuhei Hosokawa, Lars Oliver Essen, Manuel Maestre‐Reyna   +3 more
wiley   +1 more source

Beyond Vertical Point Accuracy

, 2021
Quantitative geomorphic research depends on accurate topographic data often collected via remote sensing. Lidar, and photogrammetric methods like structure-from-motion, provide the highest quality data for generating digital elevation models (DEMs).
Purinton, Benjamin (Dr.), Bookhagen, Bodo (Prof. Dr.)   +1 more
openaire   +2 more sources

RoundMi: A quantitative method to analyze mitochondrial morphology in mitotic cells

FEBS Open Bio, EarlyView.
RoundMi is a workflow for rapid analysis of mitochondrial morphology in mitotic cells. By combining adaptive preprocessing with automated segmentation and quantification, it enables accurate measurements from single focal plane images, reducing acquisition time and computational demands while remaining compatible with high‐throughput fixed and live ...
Elmira Parvindokht Bararpour, Christine Volmert, Valentina Piano   +2 more
wiley   +1 more source

Selection of Design Parameters in Optical System of Star Tracker for a Satellite [PDF]

Journal of Astronomy and Space Sciences, 1999
In order to develop star trackers for a satellite in our country we studied selection procedure of optical parameters. For logical selection of the optical parameters, we simulated the entire processes in which star lights imaged on a CCD sensor were ...
Ja-Kyung Nah, Yong Ha Kim, Yu Yi
doaj