Results 91 to 100 of about 385,708 (355)

Artificial Symbiosis for Bulk Production of Bacterial Cellulose Composites

Advanced 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, Sing Teng Chua, Ran Zhao, Alyssa Smith, Michael Kühl, Alison G. Smith, Tom Ellis, Silvia Vignolini   +7 more
wiley   +1 more source

A Detailed Study for the Determination of Phase Inductances of a Shaded-Pole Induction Motor with Variable Air Gap

Gazi Üniversitesi Fen Bilimleri Dergisi, 2019
Shaded-pole induction motors (SPIMs) are extensively used in industrial applications, home appliances and ventilation systems due to their simple structure, low cost and low maintenance requirement.
Adem DALCALI, Mehmet AKBABA, Emre ÇELİK   +2 more
doaj   +1 more source

Optimal Selection of Rotor Bar Number for Minimizing Torque and Current Pulsations Due to Rotor Slot Harmonics in Three-Phase Cage Induction Motors

IEEE Access, 2020
The paper develops a method to choose the number of rotor bars in order to eliminate rotor slot harmonics in stator current spectrum and pulsation torques that are their consequence.
Gojko Joksimovic, Emil Levi, Aldin Kajevic, Mario Mezzarobba, Alberto Tessarolo   +4 more
doaj   +1 more source

A comparison of the asynchronous motor characteristics with squirrel cage by replacing the material of the rotor winding and suggestions for improvement [PDF]

, 2014
В статье проанализированы вопросы изменения геометрии зубцовой зоны ротора асинхронного двигателя, которые необходимо выполнить при изменении материала обмотки ротора, с целью обеспечения достаточных пусковых характеристик и сохранения энергетических ...
Горюшкин, Никита Игоревич, Лизан, Игорь Ярославович, Шевченко, Валентина Владимировна   +2 more
core  

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

Advanced 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, Lucía Torrico‐García‐Viso, Jose Antonio Suárez del Pino, Nekane Aramburu‐Merino, Pilar Segovia, Enrique G. Michel, Josep Puigmartí‐Luis, Enrique Velasco, Pedro Tarazona, Daniel Maspoch, David Rodríguez‐San‐Miguel, Félix Zamora   +11 more
wiley   +1 more source

A Model for Induction Motors with Non-Uniform Air-Gap [PDF]

, 2005
Equations to calculate inductances of induction motors, considering non-uniform air-gap, are proposed. The analyzed air-gap variations are static and dynamic eccentricity and stator slots.
Bossio, Guillermo Rubén, de Angelo, Cristian Hernan, Garcia, Guillermo, Solsona, Jorge Alberto, Valla, Maria Ines   +4 more
core  

In Situ Amine Formation to Modulate MOF‐Derived PdIn N‐Doped Carbon Catalysts

Advanced Materials, EarlyView.
An amine‐assisted approach converts PdIn‐MOF into PdIn intermetallic nanoparticles embedded in N‐doped carbon. In situ‐generated amines trigger early Pd nucleation, producing smaller PdIn domains than direct pyrolysis. Amine sterics and basicity tune composition and particle size, while solvent and amine co‐determine textural features.
Gonzalo Egea, Jordan Santiago Martinez, M. Asunción Molina, Jaime Mazarío, Lucy Costley‐Wood, Christian Cerezo‐Navarrete, Carlo Marini, Eduardo Villalobos‐Portillo, Andrew M. Beale, Pascual Oña‐Burgos   +9 more
wiley   +1 more source

A novel spherical actuator: Design and control [PDF]

, 1997
The paper describes the design and control of a novel spherical permanent magnet actuator which is capable of two-degrees-freedom and a high specific torque. Based on an analytical actuator model, an optimal design procedure is developed to yield maximum
Howe, D., Jewell, G.W., Wang, J.B.
core   +1 more source

Vision‐Assisted Avocado Harvesting with Aerial Bimanual Manipulation

Advanced Robotics Research, EarlyView.
This work outlines the design and implementation of a bimanual aerial robot that employs visual perception and learning to detect, reach, and harvest avocados. A new gripper and fixer arm assembly is used to harvest avocados, while visual perception enables the detection of avocados and estimation of their position and orientation for determining ...
Zhichao Liu, Jingzong Zhou, Caio Mucchiani, Konstantinos Karydis   +3 more
wiley   +1 more source

Analysis and optimization of a high-speed generator's cooling structure based on Taguchi method

Case Studies in Thermal Engineering
To increase the power density of the original generator, it is desired to boost the generator's power to 1.2 times its original capacity. However, the cooling structure of the original generator cannot meet the heat dissipation requirements of the ...
Chenqi Tang, Zhongjun Yu, Jia Fu, Juntan Yang   +3 more
doaj   +1 more source