Results 81 to 90 of about 22,082 (291)

Effects of vane/blade ratio and spacing on fan noise, volume 1 [PDF]

open access: yes
The noise characteristics of a high-speed fan were studied. The experimental investigation was carried out on a 50.8 cm (20 in.) diameter scale model fan stage in an anechoic chamber with an inflow turbulence control screen installed.
Gliebe, P. R., Kantola, R. A.
core   +1 more source

Tailored Redox‐Active Catholytes Enabling High‐Rate and High‐Loading All‐Solid‐State Lithium‐Sulfur Batteries

open access: yesAdvanced Materials, EarlyView.
This study explores iodine substitution in solid electrolytes to overcome sluggish redox kinetics and poor charge transport in all‐solid‐state Li‐S batteries. The resulting iodine‐rich, amorphous phase and superionic, nanocrystalline domains enable effective redox mediation and provide a robust ionic percolation network.
Jingui Yang   +8 more
wiley   +1 more source

Compensation of negative sequence stator flux of doubly-fed induction generator using polar voltage control-based direct torque control under unbalanced grid voltage condition

open access: yesThe Journal of Engineering, 2015
This study proposes a polar voltage control-based direct torque control method to reduce the effects of unbalanced grid voltage on doubly-fed induction generator (DFIG)-based wind turbine system.
Badrinarayan Bansilal Pimple   +2 more
doaj   +1 more source

Vibrational spectra of C60C8H8 and C70C8H8 in the rotor-stator and polymer phases [PDF]

open access: yes, 2007
C60-C8H8 and C70-C8H8 are prototypes of rotor-stator cocrystals. We present infrared and Raman spectra of these materials and show how the rotor-stator nature is reflected in their vibrational properties.
Abe H.   +28 more
core   +1 more source

Artificial Symbiosis for Bulk Production of Bacterial Cellulose Composites

open access: yesAdvanced Materials, EarlyView.
Co‐cultivation of the cellulose‐producing bacterium with the microalga enables bulk formation of bacterial cellulose under static incubation, with photosynthetically active oxygen‐generating sites throughout the medium. This symbiotic platform supports 3D cellulosic constructs with geometries dictated by the vessel shape.
Kui Yu   +7 more
wiley   +1 more source

Dynamic model of cage induction motor with number of rotor bars as parameter

open access: yesThe Journal of Engineering, 2017
A dynamic mathematical model, using number of rotor bars as parameter, is reached for cage induction motors through the use of coupled-circuits and the concept of winding functions. The exact MMFs waveforms are accounted for by the model which is derived
Gojko Joksimović
doaj   +1 more source

COFs on MOFs: Layer‐by‐Layer Synthesis of MOF@COF Nanoparticles with Synergistic Adsorption

open access: yesAdvanced Materials, EarlyView.
A layer‐by‐layer strategy enables the growth of crystalline covalent organic framework (COF) shells on metal–organic framework nanoparticles, creating core–shell structures with tunable porosity. Ordered interstitial mesopores are formed during shell growth, which are connected with the COF's intrinsic micropores, thereby enhancing water sorption. This
Ana Guillem‐Navajas   +11 more
wiley   +1 more source

Elektriksel Malzemelerin Asenkron Motor Stator ve Rotor Nüve Ağırlığı Üzerindeki Etkilerinin Analitik ve Sonlu Elemanlar Yöntemi ile Analizi

open access: yesDüzce Üniversitesi Bilim ve Teknoloji Dergisi, 2020
Asenkron motorlar geçmişten günümüze kadar hem güç hem de verim açısından büyük aşama kaydetmişlerdir. Bu gelişimin en önemli nedenleri arasında stator ve rotor nüvesinde kullanılan malzemelerin özelliklerinin iyileştirilmesi, malzemelerin kayıp güç ...
Asım Gökhan Yetgin
doaj  

Rotor-Stator Emulsification in the Turbulent Inertial Regime: Experiments toward a Robust Correlation for the Droplet Size. [PDF]

open access: yesLangmuir, 2023
Campardelli R   +9 more
europepmc   +1 more source

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