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  • Open Access
    Authors: 
    Jae-Ho Nah; Jin-Woo Kim; Junho Park; Won-Jong Lee; Jeong-Soo Park; Seok-Yoon Jung; Woo-Chan Park; Dinesh Manocha; Tack-Don Han;
    Publisher: Institute of Electrical and Electronics Engineers (IEEE)
    Project: NSF | CGV: Small: Interactive S... (1320644), NSF | HCC-Small:Interactive Aud... (0917040)

    We present a hybrid architecture, inspired by asynchronous BVH construction [1] , for ray tracing animated scenes. Our hybrid architecture utilizes heterogeneous hardware resources: dedicated ray-tracing hardware for BVH updates and ray traversal and a CPU for BVH recon...

  • Closed Access
    Authors: 
    Ping Du; Li-Qun Zheng; Bai-Chen Xie; Arjun Mahalingam;
    Publisher: Elsevier BV

    The building sector of China currently consumes 20% of the total energy consumption. Studies on barriers to the adoption of building energy-saving technologies are of great significance on implementing policies related to achieving energy-saving goals. This paper studie...

  • Publication . Conference object . Preprint . Other literature type . Article . 2016
    Open Access English
    Authors: 
    G. O. Antoine; E. de Langre; Sébastien Michelin;
    Publisher: The Royal Society Publishing

    Vortex-induced vibrations (VIV) of flexible cables are an example of flow-induced vibrations that can act as energy harvesting systems by converting energy associated with the spontaneous cable motion into electricity. This work investigates the optimal positioning of t...

  • Authors: 
    Yasser Yasaei; Rush D. Robinett; Andrea Mammoli;
    Publisher: IEEE

    Photovoltaic electricity generation, as a renewable energy resource, is gaining more attention recently to partially replace the conventional electricity generation due to the reduction in the costs of devices as well as other factors including ‘clean energy’ concerns. ...

  • Closed Access
    Authors: 
    Fang Yuan; Qun Chen;
    Publisher: Elsevier BV

    Abstract Coupled heat and mass transfer processes between moist air and water/aqueous solution commonly occur in absorption/desorption systems for air conditioning, thermal storage and energy conservation, which are always optimized from such two aspects as layout synth...

  • Open Access
    Authors: 
    Deepak Gupta; Vikas Kumar; Ishan Ayus; M. Vasudevan; Narayanan Natarajan;
    Publisher: Centre for Evaluation in Education and Science (CEON/CEES)

    Efficient extraction of renewable energy from wind depends on the reliable estimation of wind characteristics and optimization of wind farm installation and operation conditions. There exists uncertainty in the prediction of wind energy tapping potential based on the va...

  • Closed Access
    Authors: 
    Zhongwang Jing; Ruirui Chen; Shiping Wei; Youzhi Feng; Jiabao Zhang; Xiangui Lin;
    Publisher: Elsevier BV

    Abstract Despite our current understanding of soil C and N interactions, less is known about the response and feedback of C mineralization to soil P availability driven by microorganisms. To better understand these interactions, soils with long-term P-sufficient NPK fer...

  • Open Access English
    Authors: 
    Sang-Jo Yoo; Jae-hyun Park; Su-hee Kim; Anish Shrestha;
    Publisher: The Korean Institute of Communications Information Sciences. Publishing Services by Elsevier B.V.

    Abstract In this paper, we present an optimal flying path for unmanned aerial vehicle-assisted internet of things sensor networks using a location aware multi-layer information map considering different utility functions based on the sensor density, energy consumption, ...

  • Closed Access
    Authors: 
    Min Zhang; Leilei Zhang; Shujie Pang; Tao Zhang;
    Publisher: Elsevier BV

    Abstract The development of new materials has promoted the industrial progress. The rapid-solidified Mg–Zn based alloys provided new methods to the problem of landfill leachate treatment. The reaction behaviors of rapid-solidified Mg 27.1 Zn 72.9 , Mg 40 Zn 60 , Mg 50 Z...

  • Open Access English
    Authors: 
    Ard-Jan de Jong; Ralph Stevens; Corné Rentrop; Christophe Hoegaerts;
    Publisher: The Authors. Published by Elsevier Ltd.
    Country: Netherlands
    Project: EC | MERITS (295983)

    AbstractOne of the bottlenecks for realizing a commercial system for thermochemical heat storage using hygroscopic salts is corrosion induced by chemical side-reactions. E.g. when Na2S hydrates are used, we basically deal with corrosion caused by the production of the v...

  • Closed Access
    Authors: 
    Yi-Fei Wang; Qun Chen;
    Publisher: Elsevier BV

    Abstract Heat exchanger networks (HENs) optimizations benefit the energy conservation, with many set point strategies controlling the operations indirectly by the help of detail control techniques. Based on the newly proposed thermal resistance-based optimization method...

  • Open Access English
    Authors: 
    Janet Rimmer; Conceição Santos; Eija Yli-Panula; Virginia Noronha; Markku Viander;
    Publisher: Public Library of Science

    Background The precise way in which allergen is handled by the nose is unknown. The objective of this study was to determine recovery of Der p 1 allergen following nasal administration and to determine whether Der p 1 can be detected in nasal biopsies after natural expo...

  • Open Access
    Authors: 
    Laura Aguado-Deblas; Jesús Hidalgo-Carrillo; Felipa M. Bautista; Carlos Luna; Juan Calero; Alejandro Posadillo; Antonio A. Romero; Diego Luna; Rafael Estevez;
    Publisher: MDPI AG
    Country: Spain

    chemical properties of (bio)fuels such as density, calorific value, cloud point, pour point and cetane number are determined. The influence of DEC on engine performance and exhaust emissions is analyzed by fueling a conventional Diesel engine with the different D/DEC/SV...

  • Open Access English
    Authors: 
    Ikeda, Yoshiyuki; Sciarretta, Sebastiano; Nagarajan, Narayani; Rubattu, Speranza; Volpe, Massimo; Frati, Giacomo; Sadoshima, Junichi;
    Publisher: Hindawi Limited

    The heart is highly sensitive to the aging process. In the elderly, the heart tends to become hypertrophic and fibrotic. Stiffness increases with ensuing systolic and diastolic dysfunction. Aging also affects the cardiac response to stress. At the molecular level, the a...

  • Closed Access
    Authors: 
    Cao Xiuquan; Deping Yu; Xiang Yong; Chao Li; Hui Jiang; Jin Yao;
    Publisher: IOP Publishing

    Direct current plasma torches have been applied to generate unique sources of thermal energy in many industrial applications. Nevertheless, the successful ignition of a plasma torch is the key process to generate the unique source (plasma jet). However, there has been l...

  • Publication . Article . 2015
    Closed Access
    Authors: 
    Qi Li; Ran Ding; Yang Liu; Tom Baehr-Jones; Michael Hochberg; Keren Bergman;
    Publisher: Institute of Electrical and Electronics Engineers (IEEE)

    Binary phase-shift keying (BPSK) modulator is the basic component for generating advanced modulation formats such as polarization-division-multiplexed quadrature phase-shift keying. In this letter, we demonstrate BPSK modulation using a silicon traveling-wave modulator ...

  • Closed Access
    Authors: 
    Zhifeng Huang; Cheng Yang; Haixia Yang; Xiaoqian Ma;
    Publisher: Elsevier BV

    Abstract Gas turbine combined cycle (GTCC) based combined cooling, heating and power (CCHP) or combined heating and power (CHP) system driven by natural gas is encouraged to set up for district heating/cooling demand in China due to the clean and efficient energy conver...

  • Open Access
    Authors: 
    Cheng, Xiu; Long, Ruyin; Chen, Hong; Li, Wenbo;
    Publisher: Elsevier BV

    Abstract The meaning of regional competitiveness has been changed recently to better fit the new development theme of “green” and “sustainable”. Correspondingly, the traditional regional competitiveness evaluation system, which pays too much attention to economic indica...

  • Closed Access
    Authors: 
    Ryan M. France; Ivan Garcia; William E. McMahon; Andrew G. Norman; John Simon; John F. Geisz; Daniel J. Friedman; Manuel J. Romero;
    Publisher: Institute of Electrical and Electronics Engineers (IEEE)

    The three-junction 1.8/1.4/1.0-eV inverted metamorphic multijunction solar cell can be extended to four junctions by adding another lattice-mismatched GaInAs junction with a bandgap of 0.7 eV. However, this requires a significant amount of mismatch to GaAs substrates, i...

  • Authors: 
    Hirofumi Uemura; Florian Krismer; Yasuhiro Okuma; Johann W. Kolar;
    Publisher: IEEE

    In this paper, the η-ρ (efficiency - power density) Pareto front of a 20 kVA Uninterruptible Power Supply (UPS), comprising a Si and SiC hybrid 3-level T-type rectifier and inverter stage, and input / output side filters, is determined. A multi-objective optimization pr...

  • Open Access English
    Authors: 
    Demmel, F.; McPhail, D.; Crawford, J.; Maxwell, D.; Pokhilchuk, K.; García-Sakai, Victoria; Mukhopadyay, S.; Telling, M.T.F.; Bermejo, Francisco Javier; Skipper, N.T.; +1 more
    Publisher: EDP Sciences
    Country: Spain

    A cooled and mechanically retractable beryllium filter has been installed and commissioned on the low-energy OSIRIS spectrometer at ISIS. This instrument development extends the energy-transfer range of the spectrometer up to ca. 20 meV (∼ 5 THz), leading to an excellen...

  • Authors: 
    Adriano Sciacovelli; Vittorio Verda;
    Publisher: American Society of Mechanical Engineers

    Phase-change materials (PCM) are particularly promising for thermal storage in energy systems where the working fluid is either characterized by small specific heat or small temperature difference. In these cases, sensible heat storage would involve small energy densiti...

  • Open Access English
    Authors: 
    Alejandro Silva; A. Zarzo; Juan Manuel Munoz-Guijosa; Francesco Miniello;
    Publisher: Multidisciplinary Digital Publishing Institute

    stator rub. However, in machines such as aeroderivative turbines, with increasing industrial relevance in power generation, constructive reasons prevent the use of those sensors, being only acceleration signals at selected casing locations available. This implies severa...

  • Open Access
    Authors: 
    Muhammad Qarinur; Sho Ogata; Naoki Kinoshita; Hideaki Yasuhara;
    Publisher: MDPI AG

    The comprehensive exploitation of geothermal fields has an impact on the productivity of the reservoirs. To realize sustainable steam production, changes in the rock temperature need to be predicted and controlled. A coupled thermo-hydro-mechanical (THM) model employing...

  • Closed Access
    Authors: 
    Bruno, A.; Villani, F.; Grimaldi, I.A.; Loffredo, F.; Morvillo, P.; Diana, R.; Haque, S.; Minarini, C.;
    Publisher: Elsevier BV

    Abstract The most exploited active material for photovoltaic devices is the regioregular poly(3-hexylthiophene) (P3HT), p-type conjugated polymer, blended with [6,6]-phenyl-C61-butyric acid methyl ester (PCBM), n-type material. The deposition methods and the induced mor...

  • Open Access
    Authors: 
    Sumaryada, Tony; Fitriansyah, Panji; Sofyan, Afgan; Syafutra, Heriyanto;
    Publisher: MDPI AG

    The performance of Al0.3Ga0.7As/InP/Ge triple-junction solar cells (TJSC) at the geosynchronous orbit of Venus had been simulated in this paper by assuming that the solar cells were put on a hypothetical Venus orbiter space station. The incoming solar radiation on TJSC ...

  • Authors: 
    Guangyao Su; Deng Xiao; Chuanhong Liu; Fangwang Gou; Zhaoyu Zhang;
    Publisher: SPIE

    Thin film absorber structure is becoming one of the hot topics recently for its various sub-wavelength applications such as photo detector, thermo photovoltaic cells, thin-film thermal emitters, and multi-color filters. In this work, we extended the design principles of...

  • Open Access
    Authors: 
    Yihua Hu; Yang Du; Weidong Xiao; Stephen J. Finney; Wenping Cao;
    Publisher: Institution of Engineering and Technology (IET)

    High-volume capacitance is required to buffer the power difference between the input and output ports in single-phase grid-connected photovoltaic inverters, which become an obstacle to high system efficiency and long device lifetime. Furthermore, total harmonic distorti...

  • Closed Access
    Authors: 
    Su Man Nam; Tae Ho Cho;
    Publisher: Elsevier BV

    Wireless sensor networks are characterized by stringent energy and computation constraints. They are often deployed in hostile environments and are left unattended for long periods of time without recharging. These sensor nodes can be compromised by adversaries who laun...

  • Open Access
    Authors: 
    Silvano Vergura; Mario Carpentieri;
    Publisher: MDPI AG
    Country: Italy

    The aim of this paper is the monitoring of the energy performance of Photovoltaic (PV) plants in order to detect the presence of low-intensity anomalies, before they become failures or faults. The approach is based on several statistical tools, which are applied iterati...

  • Closed Access
    Authors: 
    Jonas Siegel; Elisabeth A. Gilmore; Nancy Gallagher; Steve Fetter;
    Publisher: Wiley

    To facilitate the use of nuclear energy globally, small modular reactors (SMRs) may represent a viable alternative or complement to large reactor designs. One potential benefit is that SMRs could allow for more proliferation resistant designs, manufacturing arrangements...

  • Authors: 
    Ako Thomas Agbor; Abba Francis Mohammed; Onoduku Usman Shehu; Nuhu Waziri Musa; A Alabi Adekola; Mamodu Adegbe;
    Publisher: Horizon Research Publishing Co., Ltd.

    A swarm of 14 landslides occurred spontaneously within the Azenge Mountain on November 13 th , 2010 between the hours of 1 and 6 am after torrential rains. The landslides were studied using interviews, field observations and laboratory study of the soil samples collecte...

  • Authors: 
    Jeffrey A. Cramer; Mark H. Hammond; Kristina M. Myers; Iwona A. Leska; Robert E. Morris;
    Publisher: American Chemical Society (ACS)

    Partial least-squares (PLS) regression models can be constructed from near-infrared (NIR) spectroscopic data to identify and predict critical specification properties of jet and diesel fuels for quality surveillance prescreening. This same approach has also been used pr...

  • Closed Access
    Authors: 
    Mandalà, Marco; Colletti, Vittorio; Sacchetto, Luca; Manganotti, Paolo; Ramat, Stefano; Marcocci, Alessandro; Colletti, Liliana;
    Publisher: Wiley

    Objectives/Hypothesis: The possibility that long-term mobile phone use increases the incidence of astrocytoma, glioma and acoustic neuroma has been investigated in several studies. Recently, our group showed that direct exposure (in a surgical setting) to cell phone ele...

  • Closed Access
    Authors: 
    Wei Mei Zhao; Chao Yang Zhu; Zhen Yu;
    Publisher: Trans Tech Publications, Ltd.

    This paper describes the current status of power communication systems, problems and solutions, proposed to build an integrated platform system for communications management and control.The integrated platform system is divided into four parts: Comprehensive Monitoring ...

  • Closed Access
    Authors: 
    Chun Long Xu; Yong Chao Shi; Xiao Xing Jin; Zuosheng Lei; Yunbo Zhong; Jia Hong Guo;
    Publisher: Trans Tech Publications, Ltd.

    Boiling is known to be a very efficient mode of heat transfer in earth gravity, however, in microgravity bubble behavior is different because the buoyancy effects are replaced by surface tension effects such as Marangoni convection. The modeling of nucleate boiling with...

  • Closed Access
    Authors: 
    Porod, Wolfgang; Niemier, Michael;
    Publisher: Institute of Electrical and Electronics Engineers (IEEE)

    When it comes to computing, we can very easi ly divide the technologies we use into two distinct categories: speedy electronics and stable magnetics. Electrons, which move fast and interact strongly with one another, are ideal for performing computation. Magnets, by con...

  • Authors: 
    Balaji Ramakrishna S; Aswatha A R;
    Publisher: IEEE

    In this paper the performance analysis of CNTFET inverter under the variation of temperature and oxide thickness presented. The influence of variation of parameters on the characteristics of CNTFET inverter is simulated and analyzed using H-SPICE tool and Stanford nano ...

  • Closed Access English
    Authors: 
    Martina Kutija; Damir Sumina; Igor Čolović;
    Country: Croatia

    Abstract The paper proposes a new method for magnetizing speed sensorless squirrel-cage induction generators used in wind power applications. These generators are magnetized at non-zero speeds, and for this reason, their successful magnetization is difficult to achieve....

  • Authors: 
    Ali Arzani; Ganesh K. Venayagamoorthy;
    Publisher: IEEE

    This paper demonstrates integration of aggregate Plug-in Electric Vehicle parking lots known as SmartParks, adjacent to a MW-scale Photovoltaic (PV) plant for mitigation of loading on synchronous generators during peak hours as well as enhancing the Available Transfer C...

  • Open Access English
    Authors: 
    Taejin Lee; Hesun Cho; Haeryong Park; Jin Kwak;
    Publisher: SAGE Publishing

    Cyber incidents are increasing continuously. More than 200,000 new malicious codes appear, with more than 30,000 malicious codes distributed each day on average. These cyber attacks are expanding gradually to the social infrastructure (nuclear energy, power, water, etc...

  • Authors: 
    Chien-Chung Lin; Hau-Vei Han; Hsin-Chu Chen; Kuo-Ju Chen; Yu Lin Tsai; Wein Yi Lin; Hao-Chung Kuo; Peichen Yu;
    Publisher: American Scientific Publishers

    In this review, the concept of utilization of solar spectrum in order to increase the solar cell efficiency is discussed. Among the three mechanisms, down-shifting effect is investigated in detail. Organic dye, rare-earth minerals and quantum dots are three most popular...

  • Open Access
    Authors: 
    A. T. Burrell; Fernando Mancilla-David; P. Papantoni-Kazakos;
    Publisher: Scientific Research Publishing, Inc.

    A critical component of the smart grid (SG) infrastructure is the embedded communications network, where an important objective of the latter is the expansion of its throughput, in conjunction with the satisfaction of specified latency and accuracy requirements. For the...

  • Authors: 
    Xiaoqing Liu; L.H. Wang; D.D. Liu; W.B. Guo; Q.Y. Quan;
    Publisher: Institution of Engineering and Technology

    Power consumption has been one of the main restrictions in the booming development of wireless terminals such as smartphone. And green communication is growing to be a hotspot as the environmental deteriorating nowadays. This paper proposes a wireless resource allocatio...

  • Open Access
    Authors: 
    Nathan Hinton; Richard Stone; Roger Cracknell;
    Publisher: Elsevier BV
    Country: United Kingdom

    Abstract Laminar burning velocity measurements have been made in a constant volume vessel using both flame front imaging and the pressure rise methods. Results from the two different methods are shown to be the same, so long as appropriate techniques are used for analys...

  • Open Access
    Authors: 
    Duarte Kazacos Winter; Rahul Khatri; Michael Schmidt;
    Publisher: MDPI AG

    The increasing number of prosumers and the accompanying greater use of decentralised energy resources (DERs) bring new opportunities and challenges for the traditional electricity systems and the electricity markets. Microgrids, virtual power plants (VPPs), peer-to-peer...

  • Open Access
    Authors: 
    Yuri Shirokov; Valery Tikhnenko;
    Publisher: EDP Sciences

    The article shows that the urgency of the fuel and energy problem determines the need for rational energy consumption in all sectors of the economy, including agriculture. A comprehensive cross-sectoral approach is needed to address the issues of systematic management o...

  • Open Access
    Authors: 
    Marina Lambrou;
    Publisher: SAGE Publications
    Country: United Kingdom

    The question of whether it is possible to ‘tell the same story twice’ has been explored in work on conversational narratives, which has set out to understand the existence of some kind of ‘underlying semantic structure’ and ‘script’ (Polanyi, 1981). In conversational n...

  • Open Access English
    Authors: 
    Jai-Houng Leu;
    Publisher: SAGE Publishing

    Biomass is the largest renewable energy source in the world. Its importance grows gradually in the future energy market. Since most biomass sources are low in energy density and are widespread in space, small-scale biomass conversion system is therefore more competitiv...

  • Closed Access
    Authors: 
    F.M.A. Rahman; Nofri Yenita Dahalan; Nor Shahida Razali;
    Publisher: Trans Tech Publications, Ltd.

    This paper proposes Artificial Neural Network (ANN) to determine adjusted baseline energy for quantifying energy savings from an energy efficiency program implemented in an office building. The input data to the ANN includes number of working days and cooling degree day...