Results 1 to 10 of about 205,694 (360)
Kuangchan zonghe liyong, 2022 Based on the analysis of copper-nickel sulfide ore, the comparison of indexes before and after the application of middling separate regrinding and reseparation process, two grinding and two separation process, two grinding and two separation + middling ...
Li Zhang, Haiyu Wang
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Fixed Fiber Light Guide System with Concave Outlet Concentrators
Energies, 2022 Because a traditional optical fiber light guiding system includes a tracking device, it also inevitably has a complex structure, high construction and maintenance costs, short life span and low reliability.
Bangdi Zhou +3 more
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Performance Improvement of a Low-Power Wind Turbine Using Conical Sections
Energies, 2021 This paper examines the performance of conical sections (concentrator and diffuser) to improve the energy-recovery prospects of small-scale wind turbines.
Janesh N. Mohanan +2 more
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Mathematical Modelling of Vibrations of Non-Uniform Ring-Shaped Ultrasonic Waveguides
Механика машин, механизмов и материалов, 2021 The article describes technique for modelling of ultrasonic vibrations amplifiers, which are implemented in the form of non-uniform ring-shaped waveguides, based on application of harmonic balance method. Bending vibrations of the waveguide are described
Dmitry A. Stepanenko, Ksenija A. Bunchuk
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Heat and Material Balance of Heliopyrolysis Device
Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2023 The article proposes a technological scheme for the process of obtaining alternative fuels from local biomass by the method of heliopyrolysis. Besides, the temperature regime in the reactor of the pyrolysis device and the thermal energy savings consumed ...
G. N. Uzakov +4 more
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Elliptical concentrators [PDF]
Applied Optics, 2006 Nonimaging optics is a field devoted to the design of optical components for applications such as solar concentration or illumination. In this field, many different techniques have been used to produce optical devices, including the use of reflective and refractive components or inverse engineering techniques.
García Botella, Ángel +2 more
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Energies, 2023 This paper presents a passive concentrator for single-phase inverters with a three-phase output, which uses magnetically coupled reactors. Due to the development of renewable energy systems, the proposed systems may enable the easier integration of ...
Adam Muc +2 more
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Photonics, 2023 Presented is a new cylindrical waveguide (WG) system based on a two-dimensional photoreceptor-conversion scheme (2DPRCS) for lamppost-type solar-cell systems. The optical properties of polydimethylsiloxane (PDMS) were evaluated as the WG material, and we
Yubo Wang +4 more
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System-level Evaluation of the Operation of Different Solar Array Structures for Various CubeSat Configurations [PDF]
فصلنامه علوم و فناوری فضایی, 2022 In this paper, the feasibility and performance of using solar arrays equipped with sun concentrators, along with other conventional solar array structures, in CubeSats, is investigated for the first time.
Omid Shekoofa +2 more
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Hyperparabolic concentrators [PDF]
Applied Optics, 2009 We present a family of three-dimensional concentrators constructed from the photic field generated by a Lambertian emitter. The profile of these concentrators is obtained from the field lines for a two-dimensional truncated wedge and is based on the union between a hyperbola and a tilted parabola. By revolution of this profile, we obtain hyperparabolic
García Botella, Ángel +4 more
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