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Bingyong Guo, Tianyao Wang, Siya Jin, Shunli Duan, Kunde Yang and Yaming Zhao
There are more than thousands of concepts for harvesting wave energy, and wave energy converters (WECs) are diverse in operating principles, design geometries and deployment manners, leading to misconvergence in WEC technologies. Among numerous WEC devic...
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Borys Liubarskyi,Natalia Lukashova,Oleksandr Petrenko,Tetyana Pavlenko,Dmytro Iakunin,Sergiy Yatsko,Yaroslav Vashchenko
Pág. 16 - 25
A procedure for determining basic estimation parameters has been devised for the proposed structure of the electromechanical shock absorber. The procedure is based on a simplified mathematical model for determining the electromagnetic and electromotive f...
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Tibor Nagy, Katalin Koczka, Eniko Haáz, András József Tóth, László Rácz, Péter Mizsey
Pág. 51 - 58
Carbon dioxide capturing processes from industrial gases are widely applied to enrich valuable gas and to reduce green-house gas emission. The highest amount of anthropogenic CO2 is emitted in flue gas form. Flue gas composition varies in a wide scale th...
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Hongyu Ren, Qianyi Shangguan, Zijun Song, Yong Zhao, Zao Yi, Guolu Ma, Jianguo Zhang, Hua Yang, Shifa Wang and Pinghui Wu
This paper presents a graphene metamaterial absorber based on impedance matching. A finite difference in time domain (FDTD) method is used to achieve a theoretically perfect absorption in the mid-infrared band. A basis is created for the multiband stable...
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Javier E. Barrón-Díaz, Emmanuel A. Flores-Johnson, Danny G. Chan-Colli, J. Francisco Koh-Dzul, Ali Bassam, Luis D. Patiño-Lopez and Jose G. Carrillo
Compound parabolic concentrator (CPC) solar collectors are widely used for solar energy systems in industry; however, CPC collectors for residential applications have not been fully investigated. In this work, the thermal performance of non-tracking, sma...
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Omer Faruk Can, Nevin Celik, Filiz Ozgen, Celal Kistak and Ali Taskiran
In this study, a numerical and experimental analysis of a solar collector with roughness elements in the form of stainless-steel scourers on the absorber surface is presented. According to the location type and number of the stainless steel scourers, the...
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P. C. Iglesias, L. Godinho and J. Redondo
Extracting the microscopic parameters of a porous material is a complex task, and attempts have been made to develop models that can simulate their characteristics, gathering the least amount of information possible. As a case in point, tests to evaluate...
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Chan-Sol Park, Soo-Jin Ahn, Yeong-Bae Lee and Chang-Ki Kang
In ultrasound diagnostics, acoustic absorbers block unwanted acoustic energy or prevent the reception of echo signals from structures outside the target area. Non-metallic absorbers provide a low-echoic signal that is suitable for observing the anatomy o...
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Michele Tonan, Alberto Pasetto and Alberto Doria
In this paper, the possibility of harvesting energy from the vibrations of a plate is analyzed. The harvester takes the form of a cantilever dynamic vibration absorber equipped with a piezoelectric layer and tuned by means of a tip mass to the first mode...
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Ziqiang Hu, Lei Wei, Lin Yang, Yansong Wang and Yuanpeng Fan
Structural vibration has always been a major concern in the engineering field. A dynamic vibration absorber in the form of contacts with adjustable stiffness (CDVA) offers effective vibration suppression and can improve conventional dynamic vibration abs...
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Jens Engström, Zahra Shahroozi, Eirini Katsidoniotaki, Charitini Stavropoulou, Pär Johannesson and Malin Göteman
Wave energy conversion is a renewable energy technology with a promising potential. Although it has been developed for more than 200 years, the technology is still far from mature. The survivability in extreme weather conditions is a key parameter haltin...
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Wenbin Liu, Youshan Wang and Yuchen Ji
Landing impact load design is essential, but the process has rarely been fully described, and some designers have even neglected the differences between wheel-axle and ground-contact loads, as well as loads in the longitudinal direction, especially in ex...
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Yang Yi, Ke Sun, Yongqian Liu, Gang Ma, Chuankai Zhao, Fukang Zhang and Jianhua Zhang
The wave-energy excitation of point absorbers is highly associated with their resonant movement, and harmonic characteristics are of increasing concern in affecting resonance. However, the commonly used linearized power take-off (PTO) systems underestima...
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Changming Dai, Zhengyuan Liu, Yu Wang, Xiang Lin, Hui Liu and Bo Zhou
The magnetic suspension damper, which is based on magnetic suspension technology, is receiving more and more attention from academics as active?passive hybrid damping technology develops. A new symmetric magnetic suspension structure is constructed in th...
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Ziyu Guo, Jing Li, Shaotao Zhu and Yufeng Zhang
The dynamic vibration absorber (DVA) is widely used in engineering models with complex vibration modes. The research on the stability and periodic motions of the DVA model plays an important role in revealing its complex vibration modes and energy transf...
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Mohamed E. Zayed, Abdallah Kamal, Mohamed Ragab Diab, Fadl A. Essa, Otto L. Muskens, Manabu Fujii and Ammar H. Elsheikh
Increasing the evaporation zone inside the solar distiller (SD) is a pivotal method for augmenting its freshwater production. Hence, in this work, a newly designed prismatic absorber basin covered by linen wicks was utilized instead of the conventional f...
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Pascal Fossat, Madhurima Kothakota, Mohamed Ichchou and Olivier Bareille
This work addresses the dynamic modeling of a negative stiffness absorber consisting of an assembly of curved beams. Design rules are derived from the orders of magnitude of stiffness and elastic energy stored by the negative stiffness elements. Although...
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Ubaid Ur Rahman Qureshi, Muhammad Ismail Khan and Bin Hu
In this study, an ultra-wideband actively tunable terahertz absorber composed of four identical arc-shaped structures made of phase transition material vanadium dioxide (VO2) is presented. A metal ground plane is placed at the bottom and an insulating sp...
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Tabish Alam, Md Irfanul Haque Siddiqui, Hassan Alshehri, Masood Ashraf Ali, Paolo Blecich and Kushagra Saurabh
This paper presents the thermo-hydraulic performance of small conical ribs on the absorber plate of a solar energy air heater (SAH) using exergy analysis. Application of conical protrusion ribs on the absorber is an attractive solution for enhancing the ...
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Frederik Maiwald, Clemens Roider, Michael Schmidt and Stefan Hierl
Optical coherence tomography enables the three-dimensional inspection of internal structures like the weld seam in polymer parts and has excellent prerequisites for process monitoring in the optical and medical industries.
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