Results 81 to 90 of about 1,038,640 (224)

Demography of SDSS early-type galaxies from the perspective of radial color gradients

open access: yes, 2010
We have investigated the radial g-r color gradients of early-type galaxies in the Sloan Digital Sky Survey (SDSS) DR6 in the redshift range 0 ...
Adelman-McCarthy   +57 more
core   +1 more source

Evaluation mechanism of urban green competitiveness via a gray fuzzy comprehensive evaluation model

open access: yesEcological Indicators
Green development is a mode of economic growth and social development aimed at efficiency, harmony and sustainability. Green competitiveness has gradually become a key factor in measuring the comprehensive competitiveness of a country or region. However,
Cheng Wang   +3 more
doaj   +1 more source

Advanced Very High Resolution Radiometer (AVHRR) data evaluation for use in monitoring vegetation. Volume 1: Channels 1 and 2 [PDF]

open access: yes
Data from the National Oceanic and Atmospheric Administration satellite system (NOAA-6 satellite) were analyzed to study their nonmeteorological uses. A file of charts, graphs, and tables was created form the products generated.
Gray, T. I.   +2 more
core   +1 more source

A hybrid multi-objective gray wolf optimization algorithm for a fuzzy blocking flow shop scheduling problem

open access: yesAdvances in Mechanical Engineering, 2018
Blocking flow shop scheduling problems have important applications in manufacturing. Because of the imprecise and vague temporal parameters in real-world production, this article formulates a fuzzy blocking flow shop scheduling problem with fuzzy ...
Zhi Yang, Cungen Liu
doaj   +1 more source

Fuzzy control system for a remote focusing microscope [PDF]

open access: yes
Space Station Crew Health Care System procedures require the use of an on-board microscope whose slide images will be transmitted for analysis by ground-based microbiologists.
Tran, Luc P., Weiss, Jonathan J.
core   +1 more source

An Efficient Index Mapping Algorithm for OFDM-Index Modulation

open access: yesIEEE Access, 2019
An index mapping algorithm that efficiently associates the subcarrier activation pattern (SAP) or constellation mode pattern (CMP) sequences with the index selecting bit (ISB) sequences is proposed to improve the error performances of two OFDM-`index ...
Eunchul Yoon   +3 more
doaj   +1 more source

Different convection models in ATLAS [PDF]

open access: yes, 2005
Convection is an important phenomenon in the atmospheres of A-type and cooler stars. A description of convection in ATLAS models is presented, together with details of how it is specified in model calculations.
Smalley, Barry
core   +1 more source

Quantum Circuits for General Multiqubit Gates

open access: yes, 2004
We consider a generic elementary gate sequence which is needed to implement a general quantum gate acting on n qubits -- a unitary transformation with 4^n degrees of freedom. For synthesizing the gate sequence, a method based on the so-called cosine-sine
Bergholm, Ville   +3 more
core   +1 more source

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