Search Results/Filters    

Filters

Year

Banks



Expert Group











Full-Text


Author(s): 

WEARVER W. | JOHNSTON P.R.

Issue Info: 
  • Year: 

    1987
  • Volume: 

    -
  • Issue: 

    -
  • Pages: 

    0-0
Measures: 
  • Citations: 

    0
  • Views: 

    103
  • Downloads: 

    0
Keywords: 
Abstract: 

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

View 103

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesDownload 0 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesCitation 0 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesRefrence 0
Author(s): 

JORDI GALI | MARK GERTLER

Issue Info: 
  • Year: 

    1999
  • Volume: 

    44
  • Issue: 

    2
  • Pages: 

    195-222
Measures: 
  • Citations: 

    1
  • Views: 

    141
  • Downloads: 

    0
Keywords: 
Abstract: 

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

View 141

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesDownload 0 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesCitation 1 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesRefrence 0
Issue Info: 
  • Year: 

    2004
  • Volume: 

    14
  • Issue: 

    1
  • Pages: 

    105-111
Measures: 
  • Citations: 

    1
  • Views: 

    131
  • Downloads: 

    0
Keywords: 
Abstract: 

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

View 131

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesDownload 0 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesCitation 1 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesRefrence 0
Issue Info: 
  • Year: 

    2016
  • Volume: 

    19
Measures: 
  • Views: 

    139
  • Downloads: 

    45
Keywords: 
Abstract: 

ONE OF THE MOST IMPORTANT TYPES OF ANTIOXIDANTS ARE FLAVONOIDS WHICH CONTAIN FLAVONOLS, FLAVONONES, ISOFLAVONES, ETC. BECAUSE OF THE IMPORTANCE OF QUERCETIN AS AN ANTIOXIDANT, THE PRESENT STUDY PAYS SPECIAL ATTENTION TO THIS COMPOUND OF FLAVONOLS. THE MAIN FOCUS OF THIS INVESTIGATION IS TO EXPLORE Structural PROPERTIES OF QUERCETIN BY MOLECULAR Dynamics SIMULATION. THE RESULTS SHOW THAT INTERMOLECULAR HYDROGEN BONDS BETWEEN QUERCETIN AND WATER ARE STRONGER THAN WATER-WATER INTERACTIONS. IN ADDITION, INTRAMOLECULAR HYDROGEN BOND IN QUERCETIN IS OBSERVED. ...

Yearly Impact:   مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

View 139

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesDownload 45
Issue Info: 
  • Year: 

    2014
  • Volume: 

    17
Measures: 
  • Views: 

    150
  • Downloads: 

    95
Keywords: 
Abstract: 

INTRODUCTION: THE GROWING TREND OF GREENHOUSE GAS EMISSION HAS STIMULATED THE STUDY OF CARBON DIOXIDE CAPTURE TECHNOLOGIES. CARBON DIOXIDE IS AN ACIDIC GAS AND ITS PRESENCE MORE THAN THE STANDARD LIMIT CAN UNDERTAKE SERIOUS PROBLEMS SUCH AS PIPELINE CORROSION, GAS HEATING VALUE REDUCTION, AND CATALYST POISONING [1]. SOME CANDIDATES TO BE USED IN SWEETENING PROCESS ARE ALKANOLAMINE SOLVENTS WITH DIFFERENT AMINE STRUCTURES SUCH AS MONOETHANOLAMINE (MEA), DIETHANOLAMINE (DEA), AND METHYL DIETHANOLAMINE (MDEA)...

Yearly Impact:   مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

View 150

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesDownload 95
Issue Info: 
  • Year: 

    2014
  • Volume: 

    3
  • Issue: 

    SUPPL. (1)
  • Pages: 

    186-186
Measures: 
  • Citations: 

    0
  • Views: 

    357
  • Downloads: 

    0
Abstract: 

Amylin is a 37 residue peptide with a disulfide bridge between the residues 2 and 7. This hormone co-secreted with insulin by pancreatic islet b-cells. It has been reported that amylin is able to form amyloid fibrils. Although these fibrils are not related with the manifestation of type 2 diabetes, they have a significant role in the aggravation of diabetic condition. In this study, the potential of amyloid formation and stability of amylin has been studied in 10 species with high sequence similarity (80%), with the use of molecular Dynamics simulation. Based on the structure of human amylin (2L86.pdb from Protein Data Bank) homology modeling technique was used to create 10 different species amylin. Simulation was performed using GROMACS version 4.6.1, with a 10 ns duration and 500K. The systems were solvated with SPC water molecules. Secondary structure content was calculated using DSSP. Other analyses such as energy, solvent accessible surface, radius of gyration, RMSD and RMSF were performed, using GROMACS. Human and Rat amylin were selected as non-aggregating peptides respectively. During simulation amylin showed remarkable Structural changes, and in most cases α-helical structures were lost. In some species with aggregating amylin, b -sheets were formed at the end of the simulation. Between the studied species, Pongoabelii peptide, one of the two species of orangutans used in this study, showed more stability alongside with more similarity to human amylin. Based on these results, this amylin specie could be proposed as a potential therapeutic peptide, as an alternative to rat amylin.

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

View 357

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesDownload 0 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesCitation 0 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesRefrence 0
Issue Info: 
  • Year: 

    2016
  • Volume: 

    15
Measures: 
  • Views: 

    179
  • Downloads: 

    128
Abstract: 

AN ANALYTICAL SOLUTION FOR THE Structural Dynamics OF ELASTIC FLAPPING WINGS UNDERGOING PRESCRIBED RIGID BODY MOTION IS PRESENTED. THE GOVERNING EQUATION OF ELASTIC WING STRUCTURE IS OBTAINED USING THE GALERKIN METHOD AND RITZ APPROXIMATION. DUE TO IMPORTANCE OF DERIVING AN ANALYTICAL SOLUTION, ONLY INERTIAL FORCES DUE TO THE ACCELERATED MOTION ARE CONSIDERED. THE PRESCRIBED RIGID BODY MOTION IS CREATED VIA A SERVO MOTOR WITH HAVING A 2ND ORDER Dynamics. THE RESULTING ANALYTICAL SOLUTION, ENABLES ONE TO ASSESS THE COUPLING BETWEEN CONTROL, STRUCTURE AND INERTIAL FORCES. INCLUSION OF THE SERVO MOTOR DYNAMIC AND ITS ANALYSIS SHOW A DELAY AS WELL AS A CHANGE IN THE MOTION AMPLITUDE AS TO ITS EFFECT. WITH THE AID OF THE ANALYTICAL SOLUTION, THE DAMPING PROPERTIES OF THE STRUCTURE, THE RESONANCE PHENOMENA AND ITS OCCURRENCE PREREQUISITE HAVE ALSO BEEN INVESTIGATED. FINALLY, A COMPLETE FLAPPING FLIGHT SCENARIO IS SIMULATED. FOR THIS SIMULATION SCENARIO, A RECTANGULAR WING IS MODELLED USING ELASTIC BEAM AND SHELL ELEMENTS THAT IS UNDER PRESCRIBED SINUSOIDAL FORCING. BECAUSE OF THE WING’S SIMPLICITY, THE Structural MODAL PROPERTIES SUCH AS NATURAL FREQUENCIES AND MODE SHAPES ARE COMPUTED USING FEM ANALYSIS. RESULTS ALSO STRONGLY DEMONSTRATE THE SIGNIFICANCE OF INERTIAL FORCES IN Structural DEFORMATIONS.

Yearly Impact:   مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

View 179

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesDownload 128
Issue Info: 
  • Year: 

    2013
  • Volume: 

    16
Measures: 
  • Views: 

    115
  • Downloads: 

    114
Abstract: 

INTRODUCTION: POLYMER NANOCOMPOSITES ARE A NEW CLASS OF COMPOSITE MATERIALS, RECEIVING A SIGNIFICANT ATTENTION BOTH IN ACADEMIA AND INDUSTRY. COMPARED TO DIFFERENT NANOFILLERS, CARBON NANOTUBES HAVE EMERGED AS THE MOST PROMISING NANOFILLER FOR POLYMER COMPOSITES DUE TO THEIR REMARKABLE MECHANICAL, ELECTRICAL AND THERMAL PROPERTIES [1]. THE PURPOSE OF THIS STUDY IS TO SIMULATE A POLYMER/NANOTUBE NANOCOMPOSITE IN ORDER TO SHED LIGHT ON ITS Structural PROPERTIES FROM A FUNDAMENTAL POINT OF VIEW.

Yearly Impact:   مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

View 115

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesDownload 114
Issue Info: 
  • Year: 

    2015
  • Volume: 

    14
  • Issue: 

    1 (21)
  • Pages: 

    85-103
Measures: 
  • Citations: 

    0
  • Views: 

    1113
  • Downloads: 

    0
Abstract: 

Find a way to cope with the changing environments and organizational survival has become a major challenge among management researchers in recent years. The dynamic capabilities view has gained particular importance. Reviews of the dynamic capabilities literatures reveal that survey effects of environmental dynamism on dynamic capabilities, is one of the research requirements. This paper examines the relationship between dynamic capabilities and environmental Dynamics. So, a model of dynamic capabilities (including sensing capability, seizing capability and reconfiguration capability) and environmental Dynamics (including technology and market Dynamics) constructs was designed. The data were collected from the questionnaire. Questionnaires were completed by senior managers of production companies in Tehran stock exchange. We used SmartPLS. Results showed the relationship between environmental Dynamics and dynamic capabilities as higher-level construct in the model is significant. Also, technological Dynamics have a positive impact on sensing capability, seizing capability and reconfiguration capability. Market Dynamics have a positive impact on sensing capability and seizing capability too.

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

View 1113

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesDownload 0 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesCitation 0 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesRefrence 0
Issue Info: 
  • Year: 

    2014
  • Volume: 

    8
Measures: 
  • Views: 

    136
  • Downloads: 

    105
Abstract: 

NONUNIFORM SEISMIC MOTION AFFECTS THE SEISMIC BEHAVIOR OF LARGE STRUCTURES SUCH AS LONG-SPAN BRIDGES.THREE MAIN REASONS FOR THIS NONUNIFORMITY HAVE BEEN IDENTIFIED. THEY ARE LOCAL SOIL CONDITIONS, WAVEPASSAGE, AND INCOHERENCY EFFECTS. OTHER EFFECTS, SUCH AS EXTENDED SOURCE AND ATTENUATION, ARE RELATIVELYSMALL. THE IMPORTANCE OF NONUNIFORM SEISMIC MOTIONS, ESPECIALLY FOR SENSITIVE AND IMPORTANT STRUCTURES, HAS LED TO THE DEVELOPMENT OF SEVERAL METHODS OF ANALYSIS. THIS PAPER PRESENTS A DIRECT FREQUENCY-DOMAINMETHOD THAT IS BASED ON NEURAL NETWORK AND OPTIMIZATION. THE USE OF THIS DIRECT FREQUENCY-DOMAIN METHODFOR SOLVING NONUNIFORM SEISMIC MOTIONS IS SHOWN. FINALLY, THE APPLICATION OF THE PROPOSED METHOD TO ASIMPLE MULTIPLE PARTICLE DAMPED SYSTEM UNDER HARMONIC LOADING IS PRESENTED AND THE VALIDITY ANDFEASIBILITY OF THE TRANSFORMATION ALGORITHM IN TIME-DOMAIN AND FREQUENCY-DOMAIN ARE NUMERICALLYVERIFIED.

Yearly Impact:   مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

View 136

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesDownload 105
litScript
telegram sharing button
whatsapp sharing button
linkedin sharing button
twitter sharing button
email sharing button
email sharing button
email sharing button
sharethis sharing button