Results 211 to 220 of about 422,018 (234)

Standardization of absolute CD4⁺ lymphocyte counts across laboratories: An evaluation of the ortho CytoronAbsolute flow cytometry system on normal donors [PDF]

Cytometry, 1995
AbstractThe Ortho CytoronAbsolute is a flow cytometer designed to provide direct absolute counts of lymphocytes and their subsets from a single instrument. This study was designed to determine the performance of four geographically separated CytoronAbsolute instruments using 24‐h‐old, shipped, whole blood samples and to compare the results obtained on ...
Eileen Page, Thomas J. Mercolino, Alan L. Landay, Marilyn D. Knight, Janis V. Giorgi, Mark C. Connelly, Cathie Spino, Cynthia L. Wilkening, John W. Parker, Jonathan C. Kagan   +9 more
openaire   +4 more sources

Study of the optimum level of electrode placement for the evaluation of absolute lung resistivity with the Mk3.5 EIT system [PDF]

Physiological Measurement, 2006
Inter-subject variability has caused the majority of previous electrical impedance tomography (EIT) techniques to focus on the derivation of relative or difference measures of in vivo tissue resistivity. Implicit in these techniques is the requirement for a reference or previously defined data set. This study assesses the accuracy and optimum electrode
Satoru Nebuya, S Tateno, Brian H. Brown, A Yonemoto, P. Milnes, Rod Smallwood, Makoto Noshiro   +6 more
openaire   +3 more sources

System construction and uncertainty evaluation of absolute measurement of infrared spectral radiance

Optical Metrology and Inspection for Industrial Applications VI, 2019
The absolute measurement of infrared spectral radiance is very important for optical radiometry. In this paper, a system for absolute measurement of infrared spectral radiance is built up. The system consists of fixed-point blackbody sources, a variable temperature blackbody, a radiant source to be measured, Fourier Transform Infrared Radiometer (FTIR),
Yanfei Wang, Caihong Dai, Shufang He, Jinyuan Liu, Guojin Feng   +4 more
openaire   +3 more sources

Evaluation system for absolute brightness from the retinal vessels

Medical & Biological Engineering & Computing, 1983
The paper describes a method for the absolute evaluation of the luminance of a photographic image of the fundus, based on a comparison between this image and a referred grey scale. The absolute measurements of the luminance of the particular on the film are performed by a microprocessor-controlled microfilm reader.
C. Bosi, M. Neroni, P. Chistolini, Rossella Bedini   +3 more
openaire   +4 more sources

Experimental evaluation of absolute stability in teleoperation systems

2016 IEEE Haptics Symposium (HAPTICS), 2016
Absolute stability of teleoperation systems is analyzed based on linear models of such systems. These models are prone to dynamic and parametric uncertainties, which may result in a false robust stability outcome. In this paper, we propose an experimental methodology for the analysis of absolute stability of master-slave teleoperation systems.
Keyvan Hashtrudi-Zaad, Chiedu N. Mokogwu, Kamran Razi   +2 more
openaire   +3 more sources

A Framework for the Relative and Absolute Performance Evaluation of Automated Spectroscopy Systems

AIP Conference Proceedings, 2009
The development of high‐speed, high‐performance gamma‐ray spectroscopy algorithms is critical to the success of many automated threat detection systems. In response to this need a proliferation of such algorithms has taken place. With this proliferation comes the necessary and non‐trivial task of validation.
David Portnoy, Peter Heimberg, Jennifer Heimberg, Robert Feuerbach, Allan McQuarrie, William Noonan, John Mattson, K. Baharuth-Ram   +7 more
openaire   +3 more sources

On the Relative Efficacies of Ranking and Absolute Performance Evaluation Systems

SSRN Electronic Journal, 2016
Using a setting in which an employer seeks information about talent in order to achieve a proper match between talent levels and tasks, we provide a comparative analysis of two performance evaluation systems widely used in practice— ― an absolute performance evaluation system (APE) and a tournament or a ranking system (RE).
Shiva Sivaramakrishnan, Haijin Lin, Ramji Balakrishnan   +2 more
openaire   +3 more sources

A new method for absolute accuracy evaluation of a US-guided HIFU system with heterogeneous phantom

2016 IEEE International Ultrasonics Symposium (IUS), 2016
High Intensity Focused Ultrasound as a non-invasive treatment method has gaining its popularity in various clinical application. HIFU is usually used with navigation system with which to make pre-operative plan. Our group developed a US-guided HIFU system for breast cancer treatment.
Kazuhiro Matsui, Keisuke Fujiwara, Tianhan Tang, Tsuyoshi Mitake, Hideki Takeuchi, Takashi Azuma, Kazunori Itani, Ichiro Sakuma, Etsuko Kobayashi, Shu Takagi, Toshihide Iwahashi   +10 more
openaire   +3 more sources

Absolute evaluation of combined hybridization-induced and RKKY-induced two-ion interaction in correlated electron systems

Journal of Applied Physics, 1991
Cerium and light actinide materials have unusual properties, including suppressed crystal-field splitting and highly anisotropic ordered magnetism, that can be understood on the basis of the Coulomb interaction between partially delocalized f electrons and the non-f-band electrons.
Bernard R. Cooper, Q. G. Sheng
openaire   +3 more sources

Model order reduction of multibody system dynamics based on stiffness evaluation in the absolute nodal coordinate formulation

Nonlinear Dynamics, 2016
Although various studies on reduced-order modeling (ROM) of flexible multibody dynamics have been conducted, the issue of efficiency still exists. Significant computational resources are required in order to handle rigid body motions and inertia forces along with the flexibility of each body.
Euiyoung Kim, Maenghyo Cho, Hyunil Kim
openaire   +3 more sources