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Journal articles on the topic 'DHT Storage System'

Author: Grafiati

Published: 4 June 2021

Last updated: 18 February 2022

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1

Tiendrebeogo, Telesphore, and Mamadou Diarra. "Big Data Storage System Based on a Distributed Hash Tables System." International Journal of Database Management Systems 12, no. 5 (2020): 1–9. http://dx.doi.org/10.5121/ijdms.2020.12501.

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The Big Data is unavoidable considering the place of the digital is the predominant form of communication in the daily life of the consumer. The control of its stakes and the quality its data must be a priority in order not to distort the strategies arising from their treatment in the aim to derive profit. In order to achieve this, a lot of research work has been carried out companies and several platforms created. MapReduce, is one of the enabling technologies, has proven to be applicable to a wide range of fields. However, despite its importance recent work has shown its limitations. And to

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Liao, Jianxin, baoran li, Jingyu Wang, Qi Qi, and Tonghong Li. "Rapid Relevance Feedback Strategy Based on Distributed CBIR System." International Journal on Semantic Web and Information Systems 14, no. 2 (2018): 1–26. http://dx.doi.org/10.4018/ijswis.2018040101.

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This article describes the capability of online data storage which has been enhanced by the emergence of cloud datacenter development. Distributed Hash Table (DHT) based image retrieval system using locality sensitive hash (LSH) has provided an efficient way to set up distributed Content Based Image Retrieval (CBIR) frameworks. However, with the fixed LSH function adopted, LSH and other codebook-based distributed retrieval systems are facing the problem of flexibility, and also are difficult to satisfy the user's demand. In this article, LRFMIR is proposed to introduce semantic search into DHT

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Zhong, Haifeng, and Jianying Xiong. "The Management Strategy of Metadata in Large-scale Network Storage System." MATEC Web of Conferences 228 (2018): 01011. http://dx.doi.org/10.1051/matecconf/201822801011.

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The wan Internet storage system based on Distributed Hash Table uses fully distributed data and metadata management, and constructs an extensible and efficient mass storage system for the application based on Internet. However, such systems work in highly dynamic environments, and the frequent entry and exit of nodes will lead to huge communication costs. Therefore, this paper proposes a new hierarchical metadata routing management mechanism based on DHT, which makes full use of the node stabilization point to reduce the maintenance overhead of the overlay. Analysis shows that the algorithm ca

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Azkiyak, Vina Nadhirotul, Syaifudin Syaifudin, and Dyah Titisari. "Incubator Analyzer Using Bluetooth Android Display (Humidity & Air Flow)." Indonesian Journal of electronics, electromedical engineering, and medical informatics 1, no. 2 (2020): 71–77. http://dx.doi.org/10.35882/ijeeemi.v1i2.5.

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Abstract— Incubator Analyzer is a calibrator used to calibrate incubator temperature, mattress temperature, noise, humidity and airflow so that conditions in the baby incubator environment remain stable and within normal limits. The purpose of this study is to develop a system for sending data to android and data storage. "Incubator Analyzer Using Bluetooth Appear Android" has four parameters for measuring temperature, noise, humidity, and water flow. Using the Atmega328 microcontroller as a data processor, and the output results will be displayed on the LCD display and equipped with data tran

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Arun Kumar, K., R. Mohammed Harun Babu, S. Kalaivanan, and V. Kanimozhi. "Multiauditing Based Cloud Storage Using a Dynamic Hash Table." Shanlax International Journal of Arts, Science and Humanities 8, no. 1 (2020): 143–48. http://dx.doi.org/10.34293/sijash.v8i1.2763.

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Cloud depository is one of the customary supplications of the cloud computing system, which offers on-demand offloading services for both individuals and institutions. Although utilizes do not have full faith in the cloud service providers (CSPs) within that, it is hard to decide either the CSPs meet their licit expectations for data security or not. Thence, it is evaluative to come up with productive auditing techniques to boost owners’ trust and reliance in cloud storage. In this paper, we are presenting a scheme of auditing for assured cloud storage based on a 2-dimensional data structure c

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Yadav, Sanchit, and Kamlesh Kumar Singh. "Smart Environmental Health Monitoring System." Journal of Informatics Electrical and Electronics Engineering (JIEEE) 2, no. 1 (2021): 1–5. http://dx.doi.org/10.54060/jieee/002.01.003.

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Pollution is a growing issue these days. It is necessary to analyze environment & keep it in check for a for best future as well as healthy living for all. Here we propose an Envi-ronment Monitoring System that permit us to watch & check live environment in espe-cially areas through Internet of Things (IOT). IoT supported a real time environmental monitoring system. It plays a crucial role in today’s world through a huge and pro-tract-ed system of sensor networks concerned to the environment & its parameters. This technique deals with monitoring important environmental conditions l

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7

Zhou, Jingya, Jianxi Fan, and Juncheng Jia. "A cost-efficient resource provisioning algorithm for DHT-based cloud storage systems." Concurrency and Computation: Practice and Experience 28, no. 18 (2016): 4485–506. http://dx.doi.org/10.1002/cpe.3795.

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8

Hassanzadeh-Nazarabadi, Yahya, Alptekin Küpçü, and Öznur Özkasap. "Decentralized and locality aware replication method for DHT-based P2P storage systems." Future Generation Computer Systems 84 (July 2018): 32–46. http://dx.doi.org/10.1016/j.future.2018.02.007.

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Karthik, P., and C. Anandharamakrishnan. "Fabrication of a nutrient delivery system of docosahexaenoic acid nanoemulsions via high energy techniques." RSC Advances 6, no. 5 (2016): 3501–13. http://dx.doi.org/10.1039/c5ra12876e.

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A high energy nanoemulsification technique has been developed to encapsulate docosahexaenoic acid (DHA), with the major objective of enhancing its chemical and kinetic stability for a substantial storage period.

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Hassanzadeh-Nazarabadi, Yahya, Alptekin Kupcu, and Oznur Ozkasap. "Decentralized Utility- and Locality-Aware Replication for Heterogeneous DHT-Based P2P Cloud Storage Systems." IEEE Transactions on Parallel and Distributed Systems 31, no. 5 (2020): 1183–93. http://dx.doi.org/10.1109/tpds.2019.2960018.

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11

Hemmatabady, Hoofar, Julian Formhals, Bastian Welsch, Daniel Otto Schulte, and Ingo Sass. "Optimized Layouts of Borehole Thermal Energy Storage Systems in 4th Generation Grids." Energies 13, no. 17 (2020): 4405. http://dx.doi.org/10.3390/en13174405.

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Borehole thermal energy storage (BTES) systems are a viable option to meet the increasing cooling demand and to increase the sustainability of low-temperature district heating and cooling (DHC) grids. They are able to store the rejected heat of cooling cycles on a seasonal basis and deliver this heat during the heating season. However, their efficient practical implementation requires a thorough analysis from technical, economic and environmental points of view. In this comparative study, a dynamic exergoeconomic assessment is adopted to evaluate various options for integrating such a storage

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Aprile, Marcello, Rossano Scoccia, Alice Dénarié, et al. "District Power-To-Heat/Cool Complemented by Sewage Heat Recovery." Energies 12, no. 3 (2019): 364. http://dx.doi.org/10.3390/en12030364.

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District heating and cooling (DHC), when combined with waste or renewable energy sources, is an environmentally sound alternative to individual heating and cooling systems in buildings. In this work, the theoretical energy and economic performances of a DHC network complemented by compression heat pump and sewage heat exchanger are assessed through dynamic, year-round energy simulations. The proposed system comprises also a water storage and a PV plant. The study stems from the operational experience on a DHC network in Budapest, in which a new sewage heat recovery system is in place and provi

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KOIZUMI, Takeshi, Takashi YOKOTA, Hitoshi YAMASATO, and Sumio YOSHIKAWA. "A Personal Computer System Equipped with DAT Data Storage Unit for Continuous Digital Recording of Seismic Wave." Zisin (Journal of the Seismological Society of Japan. 2nd ser.) 43, no. 4 (1990): 547–50. http://dx.doi.org/10.4294/zisin1948.43.4_547.

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14

Li, Bin, Shu Chen, and Shui Ying Liang. "A Suitable Method of Energy Storage Capacity Optimization Based on DFT for BIPV." Applied Mechanics and Materials 548-549 (April 2014): 901–9. http://dx.doi.org/10.4028/www.scientific.net/amm.548-549.901.

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Building Integrated with Photovotaic (BIPV) will become an effective way of building energy efficiency. A capacity determination method of energy storage system based on spectral analysis for BIPV was presented. To take both the isolated operation and grid-connected operation into account, the energy storage capacity can be determined based on spectrum analysis results of the control power to smooth power fluctuations in microgrid. Results indicate that the power control target of tie-line in microgrid can be achieved and the power fluctuations of BIPV output power and load power can be effect

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Khadraoui, Ahlem, and Fatima Zohra Bentayeb. "First-Principles Study of Hydrogen Storage in Fe-Ti System." Defect and Diffusion Forum 365 (July 2015): 266–71. http://dx.doi.org/10.4028/www.scientific.net/ddf.365.266.

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In this study, a first-principles investigation of hydrogen storage in the FeTi intermetallic is carried out. The structural and electronic changes due to hydrogen insertion into the FeTi intermetallic are determined using DFT and pseudo-potential calculations through the code SIESTA (Spanish Initiative for Electronic Simulation of Thousand of Atoms). The pseudopotentials are constructed using Troullier and Martins parametrization which describes correctly the ion-electron interactions. To define the real-space grid, necessary for numerical calculations of the electron density, detailed tests

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Ambrusi, Rubén E., C. Romina Luna, Alfredo Juan, and María E. Pronsato. "DFT study of Rh-decorated pristine, B-doped and vacancy defected graphene for hydrogen adsorption." RSC Advances 6, no. 87 (2016): 83926–41. http://dx.doi.org/10.1039/c6ra16604k.

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Rh adatom stability on graphene, with and without defects has been investigated by density functional theory (DFT). The feasibility to achieve uniform dispersion for the metallic atom and the hydrogen storage capacity for each system were evaluated.

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Samolia, Madhu, and T. J. Dhilip Kumar. "A conceptual DFT study of the hydrogen trapping efficiency in metal functionalized BN system." RSC Adv. 4, no. 58 (2014): 30758–67. http://dx.doi.org/10.1039/c4ra03707c.

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18

Meratizaman, Mousa, and Ali Abbasi Godarzi. "Techno-economic feasibility of a solar-powered reverse osmosis desalination system integrated with lithium battery energy storage." DESALINATION AND WATER TREATMENT 167 (2019): 57–74. http://dx.doi.org/10.5004/dwt.2019.24550.

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Zubair, M. Ifras, Fahad A. Al-Sulaiman, Mohammed A. Antar, S. Dini, and Nasiru I. Ibrahim. "Performance and cost assessment of a solar HDH desalination system integrated with thermal storage: a case study." DESALINATION AND WATER TREATMENT 173 (2020): 86–104. http://dx.doi.org/10.5004/dwt.2020.24686.

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Kilde, Martin Drøhse, Paloma Garcia Arroyo, Anders S. Gertsen, Kurt V. Mikkelsen, and Mogens Brøndsted Nielsen. "Molecular solar thermal systems – control of light harvesting and energy storage by protonation/deprotonation." RSC Advances 8, no. 12 (2018): 6356–64. http://dx.doi.org/10.1039/c7ra13762a.

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The optical properties of pyridyl-substituted dihydroazulene (DHA) photoswitches can be tuned by protonation/deprotonation as well as the thermal back-reaction rate and amount of heat release from the vinylheptafulvene (VHF) photoisomers.

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21

El Zubeir, IEM. "Improvement Of Camel Milk Microbial Loads By Activation Of Lactoperoxidase Enzyme System During Different Storage Temperature." Journal of Dairy Research & Technology 3, no. 2 (2020): 1–9. http://dx.doi.org/10.24966/drt-9315/100021.

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This study was designed to investigate the effect of using the recommended FAO Lactoperoxidase Enzyme System (LPS) on improving the keeping quality and increasing the shelf life of raw milk from camels at different stages of lactations. Fresh milk samples were obtained after morning milking from Camel Research Center of Khartoum University.

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22

Yuda Pratama Gumelar, Zulis Erwanto, and Andi Wijanarko. "The Simulation Of Return Period Design Flood At KG2 Setail Storage Planning In Yosomulyo Village Gambiran Sub District Banyuwangi." Journal of Applied Civil Engineering and Infrastructure Technology 1, no. 1 (2020): 30–42. http://dx.doi.org/10.52158/jaceit.v1i1.59.

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Berdasarkan Peraturan Daerah Kabupaten Banyuwangi Nomor 08 Tahun 2012 Tentang Rencana Tata Ruang Wilayah Kabupaten Banyuwangi Tahun 2012 terkait pengembangan waduk dan embung. Untuk memenuhi kebutuhan air irigasi di Desa Yosomulyo diperlukan pembangunan embung Setail KG2. Tujuan penelitian adalah untuk mengetahui hasil simulasi debit banjir rancangan kala ulang pada perencanaan Embung Setail KG2 menggunakan bantuan program HEC-RAS. Untuk perhitungan debit banjir kala ulang menggunakan metode Rasional. Untuk simulasi banjir rancangan dengan menggunakan bantuan program HEC-RAS (Hidrology Enginee

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Vessally, Esmail, and Soma Aryana. "Maximizing the solar energy storage of the four substituted norbornadiene-quadricyclane system: DFT calculations." Russian Journal of Physical Chemistry A 90, no. 1 (2015): 136–43. http://dx.doi.org/10.1134/s003602441601009x.

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Wang, Jing, Yuhong Chen, Lihua Yuan, Meiling Zhang, and Cairong Zhang. "Scandium Decoration of Boron Doped Porous Graphene for High-Capacity Hydrogen Storage." Molecules 24, no. 13 (2019): 2382. http://dx.doi.org/10.3390/molecules24132382.

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The hydrogen storage properties of the Scandium (Sc) atom modified Boron (B) doped porous graphene (PG) system were studied based on the density functional theory (DFT). For a single Sc atom, the most stable adsorption position on B-PG is the boron-carbon hexagon center after doping with the B atom. The corresponding adsorption energy of Sc atoms was −4.004 eV. Meanwhile, five H2 molecules could be adsorbed around a Sc atom with the average adsorption energy of −0.515 eV/H2. Analyzing the density of states (DOS) and the charge population of the system, the adsorption of H2 molecules in Sc-B/PG

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Solis, Julio, Arthur Villordon, Niranjan Baisakh, Don LaBonte, and Nurit Firon. "Effect of Drought on Storage Root Development and Gene Expression Profile of Sweetpotato under Greenhouse and Field Conditions." Journal of the American Society for Horticultural Science 139, no. 3 (2014): 317–24. http://dx.doi.org/10.21273/jashs.139.3.317.

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Greenhouse and field culture systems were used to study the effect of drought conditions on the storage root (SR) formation in ‘Beauregard’ sweetpotato (Ipomoea batatas). In the greenhouse culture system, drought was simulated by withholding water for 5 and 10 days after transplanting (DAT) cuttings in dry sand. Control plants received water at planting and every 3 days thereafter. In the field studies, natural drought conditions and selective irrigation were used to impose water deprivation during the critical SR formation period. Greenhouse drought for 5 and 10 DAT reduced the number of SRs

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Mpourmpakis, Giannis, Emmanuel Tylianakis, and George Froudakis. "Hydrogen Storage in Carbon Nanotubes: A Multi-Scale Theoretical Study." Journal of Nanoscience and Nanotechnology 6, no. 1 (2006): 87–90. http://dx.doi.org/10.1166/jnn.2006.17909.

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A Combination of quantum and classical calculations has been performed to investigate the hydrogen storage in single-walled carbon nanotubes (SWNTs). The ab-initio calculations at the Density Functional level of Theory (DFT) show the nature of hydrogen interaction in selected sites of a (5,5) tube walls. On top of this, Molecular Dynamics simulations model large scale nanotube systems and reproduce the storage capacity under variant temperature conditions. Our results indicate that the interaction of hydrogen with SWNTs is very weak and slightly increase of temperature, causes hydrogen diffusi

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Huber, David, Viktoria Illyés, Veronika Turewicz, Gregor Götzl, Andreas Hammer, and Karl Ponweiser. "Novel District Heating Systems: Methods and Simulation Results." Energies 14, no. 15 (2021): 4450. http://dx.doi.org/10.3390/en14154450.

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Fifth-generation district heating and cooling (5th DHC) systems offer promising approaches to decarbonizing space heating, cooling and domestic hot water supply. By using these systems, clustered buildings combined with industrial waste heat can achieve a net-zero energy balance on a variety of time scales. Thanks to the low exergy approach, these systems are highly efficient. As part of the Smart Anergy Quarter Baden (SANBA) project, the thermal energy grid simulation tool TEGSim has been further developed and used to design an ultra-low-temperature district heating (ULTDH) network with hydra

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Buffa, Simone, Anton Soppelsa, Mauro Pipiciello, Gregor Henze, and Roberto Fedrizzi. "Fifth-Generation District Heating and Cooling Substations: Demand Response with Artificial Neural Network-Based Model Predictive Control." Energies 13, no. 17 (2020): 4339. http://dx.doi.org/10.3390/en13174339.

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District heating and cooling (DHC) is considered one of the most sustainable technologies to meet the heating and cooling demands of buildings in urban areas. The fifth-generation district heating and cooling (5GDHC) concept, often referred to as ambient loops, is a novel solution emerging in Europe and has become a widely discussed topic in current energy system research. 5GDHC systems operate at a temperature close to the ground and include electrically driven heat pumps and associated thermal energy storage in a building-sited energy transfer station (ETS) to satisfy user comfort. This work

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Muthukumar, K., M. Sankaran, and B. Viswanathan. "Hydrogenation of Substituted Fullerenes – a DFT Study." Eurasian Chemico-Technological Journal 6, no. 2 (2017): 139. http://dx.doi.org/10.18321/ectj603.

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Hydrogen storage by carbon materials is a topic of current interest. In order to exploit fullerenes as one of the new forms of carbon for hydrogen storage, it is shown that an activator for hydrogen is necessary in the fullerene network. Even though one can generate stoichiometric hydrides the formation of such hydrides have to be established. In this present study we have examined what type of species on carbon surfaces may be able to activate hydrogen molecule and lead to hydride formation. The Density Functional Theory calculations have been carried out on some typical model systems wherein

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Ullah, Saif, Pablo A. Denis, and Fernando Sato. "First-principles study of dual-doped graphene: towards promising anode materials for Li/Na-ion batteries." New Journal of Chemistry 42, no. 13 (2018): 10842–51. http://dx.doi.org/10.1039/c8nj01098f.

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The interaction of Li/Na with various DDG is studied with the help of DFT. Among them, the Be–B DDG systems exhibit exceptional properties, such as large storage capacities, excellent OCVs, good electronic conductivities, and minor changes in their planes. These properties show that Be–B DDG can serve as promising anode materials for LIBs/SIBs.

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Prabakar, T. N., G. Lakshminarayanan, and Gopalakrishnan Seetharaman. "Design and Implementation of SoPC based Low power Asynchronous Image Processor." Applied Mechanics and Materials 239-240 (December 2012): 1179–83. http://dx.doi.org/10.4028/www.scientific.net/amm.239-240.1179.

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In this paper, design and implementation of SOPC (System on Programmable Chip) based Asynchronous pipelined Discrete Cosine Transform (DCT) is considered. For designing Asynchronous Pipelined DCT, a new approach is proposed. In this approach, Nios II embedded processor is used to control the asynchronous data flow. For implementation of Asynchronous pipelined DCT, Winograd algorithm with 6 stages (Combinational Logic Blocks) of operations is used. The intermittent data between stages are latched by using multiplexer based latches. The completion of each and every stage is informed to the Nios

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Mehboob, Muhammad Yasir, Fakhar Hussain, Riaz Hussain, et al. "Designing of Inorganic Al12N12 Nanocluster with Fe, Co, Ni, Cu and Zn Metals for Efficient Hydrogen Storage Materials." Journal of Computational Biophysics and Chemistry 20, no. 04 (2021): 359–75. http://dx.doi.org/10.1142/s2737416521500186.

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Hydrogen is considered as one of the attractive environmentally friendly materials with zero carbon emission. Hydrogen storage is still challenging for its use in various energy applications. That’s why hydrogen gained more and more attention to become a major fuel of today’s energy consumption. Therefore, nowadays, hydrogen storage materials are under extensive research. Herein, efforts are being devoted to design efficient systems which could be used for future hydrogen storage purposes. To this end, we have employed density functional theory (DFT) to optimize the geometries of the designed

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Gunawan, Rahmat, Cynthia Linaya Radiman, Muhamad Abdulkadir Martoprawiro, and Hermawan K. Dipojono. "Graphite as A Hydrogen Storage in Fuel Cell System: Computational Material Study for Renewable Energy." Jurnal ILMU DASAR 17, no. 2 (2017): 103. http://dx.doi.org/10.19184/jid.v17i2.3499.

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The Hydrogen storage based-graphite materials have been investigated theoretically via Density Functional Theory (DFT) approach. The native graphite was compared to the modified graphite, namely the intercalation graphite (GICs, graphite intercalated compounds). Here the GICs was intercalated by alkali metals (Li, Na and K). The electronic structures, energetics and atomic orbital contributions of hydrogen-graphite system, GICs, and hydrogen-GICs were studied by calculation approach of gradient corrected PBE (Perdew-Burke-Ernzerhof) for recovery of exchange-correlation energy. The calculation

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Desales Guzmán, Luis Alberto, Juan Horacio Pacheco Sánchez, Frank Jhonatan Isidro Ortega, and Genoveva García Rosales. "Modelling carbyne C12-ring calcium decorated for hydrogen storage." Revista Mexicana de Física 64, no. 6 (2018): 634. http://dx.doi.org/10.31349/revmexfis.64.634.

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We computationally investigate the hydrogen storage properties of C12 carbyne structure decorated with one and up to six calcium (Ca) atoms adsorbed to outer surface. The calculations are carried out by density functional theory DFT with the generalized gradient approximation PW91 (Perdew and Wang) as implemented in the modeling and simulation Materials Studio software. Dmol3 is used to calculate, total energies, charge density HOMO-LUMO and Mulliken population analysis. Based on these results, up to six H2 molecules per Ca atom can be physisorbed with an average binding energy of 0.1272 eV pe

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Ma, Yinghao, Hejun Yang, Dabo Zhang, and Qianyu Ni. "Operation Flexibility Evaluation and Its Application to Optimal Planning of Bundled Wind-Thermal-Storage Generation System." Electronics 8, no. 1 (2018): 9. http://dx.doi.org/10.3390/electronics8010009.

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The growing penetration of wind power in a power system brings great challenges to system operation flexibility. For generation planning in presence of high wind power penetration, it is essential to take the operation flexibility of the system into account. Firstly, this paper developed the system operation flexibility metrics through considering the flexibility contribution of thermal generating units (TGUs) by operational state transition. Secondly, a planning model for the bundled wind-thermal-storage generation system (BWTSGS) that considers the operation flexibility constraints is propos

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Vessally, E. "Maximizing the Solar Energy Storage of the Norbornadiene-Quadricyclane System: Mono-Heteroatom Effect by DFT Calculations." Phosphorus, Sulfur, and Silicon and the Related Elements 184, no. 9 (2009): 2307–13. http://dx.doi.org/10.1080/10426500802454037.

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Vessally, E. "Heteroatom effect at C7 of norbornadiene-Quadricyclane system for maximizing the solar energy storage: DFT calculations." Journal of the Iranian Chemical Society 6, no. 1 (2009): 99–103. http://dx.doi.org/10.1007/bf03246507.

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Yildirim, E. K. "2D quasi-planar or 3D structures? A comparison between CrBn(n = 2 − 10) wheel-like clusters and their corresponding 3D pyramidal clusters, and their hydrogen storage capability." International Journal of Modern Physics B 29, no. 24 (2015): 1550172. http://dx.doi.org/10.1142/s0217979215501726.

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In this study, we investigated stable structures for a transition metal atom–boron (CrB) wheel-like clusters and compared them with their corresponding 3D counterparts by means of density functional theory (DFT). In addition, hydrogen storage capability of the wheel-like system was investigated. All simulations were performed at the B3LYP/TZVP level of theory. We set out a complete route to the formation of CrB wheel-like clusters. Our results showed that, some of the clusters, investigated in this work (CrBn; n = 4, 6, 7, 8), either prefer to be in a 3D geometry rather than 2D quasi-planar or

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Qian, Zhao, Hongni Zhang, Guanzhong Jiang, et al. "Ab Initio Screening of Doped Mg(AlH4)2 Systems for Conversion-Type Lithium Storage." Materials 12, no. 16 (2019): 2599. http://dx.doi.org/10.3390/ma12162599.

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In this work, we have explored the potential applications of pure and various doped Mg(AlH4)2 as Li-ion battery conversion electrode materials using density functional theory (DFT) calculations. Through the comparisons of the electrochemical specific capacity, the volume change, the average voltage, and the electronic bandgap, the Li-doped material is found to have a smaller bandgap and lower average voltage than the pure system. The theoretical specific capacity of the Li-doped material is 2547.64 mAhg−1 with a volume change of 3.76% involving the electrode conversion reaction. The underlying

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Horbańczuk, Olaf K., Małgorzata Moczkowska, Joanna Marchewka, Atanas G. Atanasov, and Marcin A. Kurek. "The Composition of Fatty Acids in Ostrich Meat Influenced by the Type of Packaging and Refrigerated Storage." Molecules 24, no. 22 (2019): 4128. http://dx.doi.org/10.3390/molecules24224128.

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Ostrich meat is a high-quality dietetic product, however, it is very sensitive to deterioration during storage. The aim of this study was to assess the effect of packaging systems on the fatty acid (FA) profiles in ostrich meat during refrigerated storage. The systems were: Vacuum packaging (VP) and modified atmosphere packaging (MAP) in two combinations of gases: MAP1 (40% O2/40% CO2/20% N2) and MAP2 (60% O2/30% CO2/10% N2). Samples were taken from the M. ilifibularis (IF) muscles of eight ostriches in each treatment group. The packs were stored in a refrigerator at 2 °C and analyzed at 0, 4,

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Yu, Zhicheng, Xiurong Zhang, Kun Gao, and Peiying Huo. "Structures and electronic properties of WmCunH2 (m+n ≤ 7) clusters." International Journal of Modern Physics B 32, no. 20 (2018): 1850209. http://dx.doi.org/10.1142/s0217979218502090.

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Geometric and electronic structures of W[Formula: see text]Cu[Formula: see text]H2 (m + n [Formula: see text] 7) clusters have been systematically calculated by density functional theory (DFT) at the generalized gradient approximation (GGA) level for ground-state structures. For all W–Cu clusters, H atoms prefer to attach to W atoms in this system during adsorption. And more electrons transfer from H atom to W atom with the growth of the size of the cluster which benefits the hydrogen storage. Analysis of stability properties and electronic properties shows that hydrogen adsorption and dissoci

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WHANG, Kwang-il. "STUDY ON THE ENERGY-CONSERVING EFFECT OF COGENERATION SYSTEM EQUIPPED WITH THERMAL STORAGE, FOR BUILDING AND DHC." Journal of Architecture and Planning (Transactions of AIJ) 59, no. 466 (1994): 29–36. http://dx.doi.org/10.3130/aija.59.29_3.

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Pecori, Riccardo, and Luca Veltri. "A Balanced Trust-Based Method to Counter Sybil and Spartacus Attacks in Chord." Security and Communication Networks 2018 (November 12, 2018): 1–16. http://dx.doi.org/10.1155/2018/4963932.

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A Sybil attack is one of the main challenges to be addressed when securing peer-to-peer networks, especially those based on Distributed Hash Tables (DHTs). Tampering routing tables by means of multiple fake identities can make routing, storing, and retrieving operations significantly more difficult and time-consuming. Countermeasures based on trust and reputation have already proven to be effective in some contexts, but one variant of the Sybil attack, the Spartacus attack, is emerging as a new threat and its effects are even riskier and more difficult to stymie. In this paper, we first improv

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Ferrante, Francesco, Antonio Prestianni, Marco Bertini, and Dario Duca. "H2 Transformations on Graphene Supported Palladium Cluster: DFT-MD Simulations and NEB Calculations." Catalysts 10, no. 11 (2020): 1306. http://dx.doi.org/10.3390/catal10111306.

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Molecular dynamics simulations based on density functional theory were employed to investigate the fate of a hydrogen molecule shot with different kinetic energy toward a hydrogenated palladium cluster anchored on the vacant site of a defective graphene sheet. Hits resulting in H2 adsorption occur until the cluster is fully saturated. The influence of H content over Pd with respect to atomic hydrogen spillover onto graphene was investigated. Calculated energy barriers of ca. 1.6 eV for H-spillover suggest that the investigated Pd/graphene system is a good candidate for hydrogen storage.

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Liu, Ying, Ling Peng Meng, Shi Jun Zheng, and Shao Wen Zhang. "The DFT Studies on a Novel Hydrogen Storage Material Mg₁₂Ni_6-xCr_x(x=0,1)." Applied Mechanics and Materials 457-458 (October 2013): 181–84. http://dx.doi.org/10.4028/www.scientific.net/amm.457-458.181.

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The structural, electronic and thermodynamics stability properties of the new hydrogen storage materials Mg12Ni6-xCrx(x=0, 1) are analyzed based on the density functional theory (DFT). The enthalpy of hydride formation of Mg-Ni alloys is-65.07kJ/mol (H2). For a small range of Cr doping, the enthalpy of hydride formation of the Mg-Ni-Cr system is-54.99 kJ/mol (H2), widely accepted as considerable value for applications. The thermodynamics properties of Mg12Ni6-xCrxH2(x=0, 1) are expected to be improved by addition of Cr elements. The results will play an important role in practical research fie

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Losantos, Raul, and Diego Sampedro. "Design and Tuning of Photoswitches for Solar Energy Storage." Molecules 26, no. 13 (2021): 3796. http://dx.doi.org/10.3390/molecules26133796.

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Current energy demand makes it compulsory to explore alternative energy sources beyond fossil fuels. Molecular solar thermal (MOST) systems have been proposed as a suitable technology for the use and storage of solar energy. Compounds used for this application need to fulfil a long series of requirements, being the absorption of sunlight and the energy stored some of the most critical. In this paper, we study different families of well-known molecular photoswitches from the point of view of their potential use as MOST. Starting from basic structures, we use density functional theory (DFT) comp

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Pan, Chen, Guodong Ye, Xiaoling Huang, and Junwei Zhou. "Novel Meaningful Image Encryption Based on Block Compressive Sensing." Security and Communication Networks 2019 (November 30, 2019): 1–12. http://dx.doi.org/10.1155/2019/6572105.

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This paper proposes a new image compression-encryption algorithm based on a meaningful image encryption framework. In block compressed sensing, the plain image is divided into blocks, and subsequently, each block is rendered sparse. The zigzag scrambling method is used to scramble pixel positions in all the blocks, and subsequently, dimension reduction is undertaken via compressive sensing. To ensure the robustness and security of our algorithm and the convenience of subsequent embedding operations, each block is merged, quantized, and disturbed again to obtain the secret image. In particular,

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Hamza, Rafik, Alzubair Hassan, Teng Huang, Lishan Ke, and Hongyang Yan. "An Efficient Cryptosystem for Video Surveillance in the Internet of Things Environment." Complexity 2019 (December 9, 2019): 1–11. http://dx.doi.org/10.1155/2019/1625678.

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Surveillance systems paradigm envisions the pervasive interconnection and cooperation of interactive devices over the Internet infrastructure. Nevertheless, dissemination and processing of surveillance video amid the Internet of Things (IoT) applications become a susceptible issue due to the large volume and the significant information of these data. Moreover, surveillance devices on IoT have very limited resources such as memory and storage. The actual security methods are not quite appropriate for surveillance IoT systems. Thus, a particular cryptosystem technique is required for surveillanc

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Zuliani, Filippo, Leonardo Bernasconi, and Evert Jan Baerends. "Titanium as a Potential Addition for High-Capacity Hydrogen Storage Medium." Journal of Nanotechnology 2012 (2012): 1–9. http://dx.doi.org/10.1155/2012/831872.

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We study the adsorption of hydrogen molecules on a titanium atom supported by a benzene molecule using generalized gradient corrected Density Functional Theory (DFT). This simple system is found to bear important analogies with titanium adsorption sites in (8, 0) titanium-coated single-walled carbon nanotubes (SWNTs) (T. Yildirim and S. Ciraci, 2005) In particular, we show that up to fourH2molecules can coordinate to the metal ion center, with adsorption patterns similar to those observed in Ti-SWNTs and no more than one molecule dissociating in the process. We analyze in detail the orbital in

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Huang, Liang-Feng, John R. Scully, and James M. Rondinelli. "Modeling Corrosion with First-Principles Electrochemical Phase Diagrams." Annual Review of Materials Research 49, no. 1 (2019): 53–77. http://dx.doi.org/10.1146/annurev-matsci-070218-010105.

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Understanding and predicting materials corrosion under electrochemical environments are of increasing importance to both established and developing industries and technologies, including construction, marine materials, geology, and biomedicine, as well as to energy generation, storage, and conversion. Owing to recent progress in the accuracy and capability of density functional theory (DFT) calculations to describe the thermodynamic stability of materials, this powerful computational tool can be used both to describe materials corrosion and to design materials with the desired corrosion resist

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