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1.
Zhi Li Kaveh Ahadi Keren Jiang Behzad Ahvazi Peng Li Anthony O.Anyia Ken Cadien Thomas Thundat 《Nano Research》2017,(5):1847-1860
Nanocellulose is a sustainable and eco-friendly nanomaterial derived from renewable biomass.In this study,we utilized the structural advantages of two types of nanocellulose and fabricated freestanding carbonized hybrid nanocellulose films as electrode materials for supercapacitors.The long cellulose nanofibrils (CNFs) formed a macroporous framework,and the short cellulose nanocrystals were assembled around the CNF framework and generated micro/mesopores.This two-level hierarchical porous structure was successfully preserved during carbonization because of a thin atomic layer deposited (ALD) Al2O3 conformal coating,which effectively prevented the aggregation of nanocellulose.These carbonized,partially graphitized nanocellulose fibers were interconnected,forming an integrated and highly conductive network with a large specific surface area of 1,244 m2·g-1.The two-level hierarchical porous structure facilitated fast ion transport in the film.When tested as an electrode material with a high mass loading of 4 mg·cm-2 for supercapacitors,the hierarchical porous carbon film derived from hybrid nanocellulose exhibited a specific capacitance of 170 F.g-1and extraordinary performance at high current densities.Even at a very high current of 50 A·g-1,it retained 65% of its original specific capacitance,which makes it a promising electrode material for high-power applications. 相似文献
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Iran's demographic profile is sharply youth oriented and this upcoming generation's needs for employment and housing, coupled with low-energy efficiency vectors and consumption patterns, has created a constant rise in energy demand and greenhouse gas (GHGs) emissions in the residential sector. Improved energy efficiency as a national policy lynchpin for demand reduction and GHGs mitigation, has become commonplace. OPEC countries however, Iran included, suffer an obvious lack of consumer incentive because of low fuel prices. This study evaluates the twin impacts of price reform and efficiency programs on energy carriers’ consumption and GHGs mitigation in the Iranian housing sector. For this purpose, the demand functions for energy carriers, has been developed by econometrics process models. 相似文献
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Presents a psychobiological approach to personality development, incorporating developmental principles outlined by R. B. Cairns (1979). The authors review individual differences in temperament and ask how a temperamental approach to personality might be congruent with these complex and flexible principles. Then, the nature of temperamental processes is illustrated by considering several developmental topics. The interaction of infant distress-proneness and maternal behavior in the development of attachment is considered, and the development of self-regulatory mechanisms, emphasizing development of conscience, aggression, and mastery motivation, is described. Finally, mechanisms of temperament and environment interaction, illustrating these processes through variable developmental pathways for risk of adolescent and adult psychopathology, are reviewed. Throughout, the idea that temperamental models of personality development are dynamic, interactive, and fit well with Cairns's developmental principles is stressed. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
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Sanika Krishnamali Wijayasekara Suvit Nakpeerayuth Robithoh Annur Hung‐Yun Hsieh Teerapat Sanguankotchakorn Kumbesan Sandrasegaran Warakorn Srichavengsup Tharathorn Phromsa‐ard Lunchakorn Wuttisittikulkij 《International Journal of Communication Systems》2019,32(15)
In this work, we propose a highly efficient binary tree‐based anti‐collision algorithm for radio frequency identification (RFID) tag identification. The proposed binary splitting modified dynamic tree (BS‐MDT) algorithm employs a binary splitting tree to achieve accurate tag estimation and a modified dynamic tree algorithm for rapid tag identification. We mathematically evaluate the performance of the BS‐MDT algorithm in terms of the system efficiency and the time system efficiency based on the ISO/IEC 18000‐6 Type B standard. The derived mathematical model is validated using computer simulations. Numerical results show that the proposed BS‐MDT algorithm can provide the system efficiency of 46% and time system efficiency of 74%, outperforming all other well‐performed algorithms. 相似文献
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Mahmoudi Nima Ahadi Seyed Mohammad Rahmati Mohammad 《Multimedia Tools and Applications》2019,78(6):7077-7096
Multimedia Tools and Applications - In this paper, we focus mainly on designing a Multi-Target Object Tracking algorithm that would produce high-quality trajectories while maintaining low... 相似文献
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A.?Ahadi A.?Karimi TaheriEmail author K.?Karimi Taheri I.?S.?Sarraf S.?M.?Abbasi 《Journal of Materials Engineering and Performance》2012,21(4):516-523
In this study, a set of constitutive equation corrected for deformation heating is proposed for a near equi-atomic NiTi shape
memory alloy using isothermal hot compression tests in temperature range of 700 to 1000 °C and strain rate of 0.001 to 1 s−1. In order to determine the temperature rise due to deformation heating, Abaqus simulation was employed and varied thermal
properties were considered in the simulation. The results of hot compression tests showed that at low pre-set temperatures
and high strain rates the flow curves exhibit a softening, while after correction of deformation heating the softening is
vanished. Using the corrected flow curves, the power-law constitutive equation of the alloy was established and the variation
of constitutive constants with strain was determined. Moreover, it was found that deformation heating introduces an average
relative error of about 9.5% at temperature of 800 °C and strain rate of 0.1 s−1. The very good agreement between the fitted flow stress (by constitutive equation) and the measured ones indicates the accuracy
of the constitutive equation in analyzing the hot deformation behavior of equi-atomic NiTi alloy. 相似文献
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Large-scale, grid-connected photovoltaic systems have become an essential part of modern electric power distribution systems. In this paper, a novel approach based on the Markov method has been proposed to investigate the effects of large-scale, grid-connected photovoltaic systems on the reliability of bulk power systems. The proposed method serves as an applicable tool to estimate performance (e.g., energy yield and capacity) as well as reliability indices. The Markov method framework has been incorporated with the multi-state models to develop energy states of the photovoltaic systems in order to quantify the effects of the photovoltaic systems on the power system adequacy. Such analysis assists planners to make adequate decisions based on the economical expectations as well as to ensure the recovery of the investment costs over time. The failure states of the components of photovoltaic systems have been considered to evaluate the sensitivity analysis and the adequacy indices including loss of load expectation, and expected energy not supplied. Moreover, the impacts of transitions between failures on the reliability calculations as well as on the long- term operation of the photovoltaic systems have been illustrated. Simulation results on the Roy Billinton test system has been shown to illustrate the procedure of the proposed frame work and evaluate the reliability benefits of using large-scale, grid-connected photovoltaic system on the bulk electric power systems. The proposed method can be easily extended to estimate the operating and maintenance costs for the financial planning of the photovoltaic system projects. 相似文献
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Hadi Yusuf Sudo Mulyosari Desy Herliyana Elis Nina Pari Gustan Arsyad Wa Ode Muliastuty Abdillah Imam Busyra Grardin Philippe 《Holz als Roh- und Werkstoff》2021,79(4):1007-1015
European Journal of Wood and Wood Products - The purpose of this study was to use furfurylation to enhance the resistance of wood to subterranean termite attack. Wood samples were obtained from... 相似文献