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现代水果干制工艺技术研究进展

保鲜与加工 2024年第2期24卷 80-90,96页

作者：陈子民莫江婷陈广生郭小璇朱贤文广西电网有限责任公司南宁供电局广西南宁530029 广西电网有限责任公司电力科学研究院广西南宁530023 南方电网数字电网科技(广东)有限公司广东广州510663

干制水果营养丰富、色味俱佳,深受大众喜爱。随着水果产量的逐年增加,如何对大量应季水果在保鲜期内进行干制加工,在保证果干品质的前提下进一步降低能耗、节约成本,是水果干燥行业的一大难题。从不同干制加工工艺技术出发,探讨了传统... 详细信息

干制水果营养丰富、色味俱佳,深受大众喜爱。随着水果产量的逐年增加,如何对大量应季水果在保鲜期内进行干制加工,在保证果干品质的前提下进一步降低能耗、节约成本,是水果干燥行业的一大难题。从不同干制加工工艺技术出发,探讨了传统的单一干燥方式、联合干燥方式、辅助干制技术工艺的优缺点及对果干品质、营养成分、生物学活性的影响,较为全面地对当今水果干制技术的研究进展进行了总结概述,为促进水果干制加工产业的发展提供参考借鉴。

关键词：干制水果干制加工工艺品质营养成分

Distribution of algae and cyanobacteria of biological soil crusts along the elevation gradient in mountain plant communities at the Northern Urals(Russian European Northeast)

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Journal of mountain Science 2022年第3期19卷 637-646页

作者： IV NOVAKOVSKAYA EN PATOVA YA DUBROVSKIY ab NOVAKOVSKIY EE KULYUGINA Institute of Biology Komi Scientific CentreUral BranchRussian Academy of SciencesKommunisticheskaya st.28SyktyvkarKomi Republic167982Russia

This paper describes the biodiversity of cyanobacteria and microalgae of biological soil crusts(BSC)on bare substrates in different mountain vegetation types at the Northern *** total,we identified 99 algal species from six divisions in all sampled *** species diversity and structure of BSC algal communities show a relationship with environmental factors(altitude,soil p H and humidity,and illumination).Taxonomic diversity of algae decreases along the altitude gradient from mountain meadow to mountain *** and cyanobacteria species from six divisions were identified in meadow communities,five in mountain forests and four in mountain *** observed a positive correlation between species diversity of phototrophic microorganisms and altitude in the forest communities,but a negative correlation in the *** dominant complex of cyanobacterial and algal species in BSC was specific for each type of plant community and was reflective of the habitat *** species diversity and morphological organization of the BSC algae thalli can be used as a criterion for the ongoing assessment of climatic changes in high latitudes and mountain regions.

关键词： Biological soil crusts Cyanobacteria and microalgae Altitude gradient Northern Urals

大地电磁法结合FLAC 3D在路基穿越大型古滑坡体稳定性分析研究

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公路工程 2024年第4期49卷 95-101页

作者：李耀华莫鹏荣淑娟广西交通设计集团有限公司广西南宁530025 广西北投交通养护科技集团有限公司广西南宁530201

山区高速建设不可避免会穿越古滑坡体,对路基稳定性造成影响。为研究路基穿越古滑坡体可行性,依托广西某高速公路穿越大型古滑坡处治项目,通过现场钻探法、音频大地电磁物探法获取滑动体范围,采用数值分析法对古滑坡体路基稳定性进行计... 详细信息

山区高速建设不可避免会穿越古滑坡体,对路基稳定性造成影响。为研究路基穿越古滑坡体可行性,依托广西某高速公路穿越大型古滑坡处治项目,通过现场钻探法、音频大地电磁物探法获取滑动体范围,采用数值分析法对古滑坡体路基稳定性进行计算分析,对稳定性差的路段采取措施进行加固,结果表明:视电阻结果与钻孔结果较为相近,可作为古滑坡体范围判定方法(古滑坡体判定依据);古滑坡体内部节理裂隙发育,岩体破碎,水沿裂隙进入导致视电阻低阻异常,深度0.00~30.00 m,电阻值为0~150Ω·m,为古滑坡周界范围;根据音频大地电磁法探测古滑坡体范围,利用FLAC 3D中的interface单元模拟古滑带松散土体,能够较好地模拟古滑坡体所处的稳定状态;进一步模拟分析不同道路设计工况对古滑坡体稳定性影响,采用抗滑桩或宽平台卸载及锚固、排水等方法进行防护。结果可为类似工程提供参考。

关键词：大型古滑坡高速公路大地电磁法钻孔勘察 FLAC 3D

Subspace Clustering in High-Dimensional Data Streams:A Systematic Literature Review

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Computers, Materials & Continua 2023年第5期75卷 4649-4668页

作者： Nur Laila ab Ghani Izzatdin abdul Aziz Said Jadid abdulKadir Department of Computer and Information Sciences Universiti Teknologi PETRONASSeri Iskandar32610PerakMalaysia Centre for Research in Data Science(CeRDAS) Universiti Teknologi PETRONASSeri Iskandar32610PerakMalaysia

Clustering high dimensional data is challenging as data dimensionality increases the distance between data points,resulting in sparse regions that degrade clustering *** clustering is a common approach for processing high-dimensional data by finding relevant features for each cluster in the data *** clustering methods extend traditional clustering to account for the constraints imposed by data *** streams are not only high-dimensional,but also unbounded and *** necessitates the development of subspace clustering algorithms that can handle high dimensionality and adapt to the unique characteristics of data *** many articles have contributed to the literature review on data stream clustering,there is currently no specific review on subspace clustering algorithms in high-dimensional data ***,this article aims to systematically review the existing literature on subspace clustering of data streams in high-dimensional streaming *** review follows a systematic methodological approach and includes 18 articles for the final *** analysis focused on two research questions related to the general clustering process and dealing with the unbounded and evolving characteristics of data *** main findings relate to six elements:clustering process,cluster search,subspace search,synopsis structure,cluster maintenance,and evaluation *** algorithms use a two-phase clustering approach consisting of an initialization stage,a refinement stage,a cluster maintenance stage,and a final clustering *** density-based top-down subspace clustering approach is more widely used than the others because it is able to distinguish true clusters and outliers using projected *** algorithms implicitly adapt to the evolving nature of the data stream by using a time fading function that is sensitive to *** work can focus on the clustering framework,parameter optimiza

关键词： Clustering subspace clustering projected clustering data stream stream clustering high dimensionality evolving data stream concept drift

Lean and interpretable digital twins for building energy monitoring - A case study with smart thermostatic radiator valves and gas absorption heat pumps

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Energy and AI 2023年第4期14卷 645-659页

作者： Massimiliano Manfren Patrick ab James Victoria Aragon Lamberto Tronchin Faculty of Engineering and Physical Sciences University of SouthamptonBoldrewood Campus–SO167QF SouthamptonUnited Kingdom Department of Architecture(DA) University of BolognaVia Cavalcavia 6147521 CesenaItaly

The transition to low carbon energy systems poses challenges in terms of energy *** building refur-bishment projects,efficient technologies such as smart controls and heat pumps are increasingly being used as a substitute for conventional technologies with the aim of reducing carbon emissions and determining operational energy and cost savings,together with other *** building performance,however,often reveals a significant gap between the predicted energy use(design stage)and actual energy use(operation stage).For this reason,lean and interpretable digital twins are needed for building energy monitoring aimed at persistence of savings and continuous performance *** this research,interpretable regression models are built with data at multiple temporal resolutions(monthly,daily and hourly)and seamlessly integrated with the goal of verifying the performance improvements due to Smart thermostatic radiator valves(TRVs)and gas absorption heat pumps(GAHPs)as well as giving insights on the performance of the building as a ***,as part of modelling research,time of week and temperature(TOWT)approach is reformulated and benchmarked against its original *** case study chosen is Hale Court sheltered housing,located in the city of Portsmouth(UK).This building has been used for the field-testing of innovative technologies such as TRVs and GAHPs within the EU Horizon 2020 project *** results obtained are used to illustrate possible extensions of the use of energy signature modelling,highlighting implications for energy management and innovative building technologies development.

关键词： Data-driven methods Digital twins Energy signature Thermostatic radiator valves Gas absorption heat pumps Energy management Energy Analytics

A Review of Graphene Oxide Crosslinking as Enhanced Corrosion Shield Application

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Journal of Renewable Materials 2023年第6期11卷 2745-2770页

作者： Nurul Anis Athirah ab Aziz Chin Wei Lai Boon Hoong Ong Nanotechnology&Catalysis Research Centre Institute for Advanced StudiesUniversity of MalayaKuala Lumpur50603Malaysia

Nowadays,corrosion is not only undesirable,but it also has a significant influence on the industrial sectors and technical innovations that have demand for *** global economic damage is expected to reach$2.5 trillion,equivalent to more than 3.4%of the world’s GDP in *** is linked with significant financial harm,manufacturing pollution,and safety *** electrochemical process primarily induces metal corrosion at the metalelectrolyte interface region,caused by steel oxidation and the reduction of oxygen,protons,and ***,organic and epoxy coatings can be applied as protective ***,it can prevent metal corrosion in various fields due to its unique properties,like the ability to manage its curing process over a long *** review paper focuses on improving the physicomechanical properties of modified graphene oxide(GO)coating by attaching a polymer,epoxy resin(EP).moreover,we reviewed recent achievements for different methods in minimizing a corrosion ***,we considered the modification of epoxy resin using the curing agent as a bridge to the polymer to strengthen the functionalization of nanocomposites during the ***,we discussed the relationship between the modified GO/EP anticorrosive coating and physicomechanical properties since it is currently being questioned and remains *** a result,extensive studies on the mechanism of synthesis of the modified GO/EP anticorrosive coating were highlighted.

关键词： Corrosion anticorrosive graphene polymer epoxy resins

广西双季早稻高温热害精细化风险评估与区划研究

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江西农业学报 2024年第3期36卷 10-15页

作者：谭孟祥何燕莫建飞谢映广西壮族自治区气象科学研究所广西南宁530022

基于灾害风险分析原理,利用广西89个国家级气象站1970─2020年气象观测数据和广西各主产市(县)早稻种植面积、产量资料,以及相关地理信息数据等,从灾害致灾因子危险性、承灾体暴露度、承灾体脆弱性以及防灾减灾能力等方面筛选风险评估指... 详细信息

基于灾害风险分析原理,利用广西89个国家级气象站1970─2020年气象观测数据和广西各主产市(县)早稻种植面积、产量资料,以及相关地理信息数据等,从灾害致灾因子危险性、承灾体暴露度、承灾体脆弱性以及防灾减灾能力等方面筛选风险评估指标,采用灾害风险指数法、层次分析法等技术方法构建了广西双季早稻高温热害的风险评估模型,并利用GIS技术对广西早稻高温热害进行了风险评估分析和精细化风险区划。结果表明:广西早稻高温热害的综合风险高值区主要位于左江河谷、右江河谷区域和桂中盆地等;低风险区主要分布在桂西北和桂北山区。本研究结果可为广西早稻生产趋利避害、优化布局、防灾减灾提供决策参考。

关键词：双季早稻高温热害风险评估精细化区划

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广西某尾矿回收微细粒锡石浮选试验研究

有色金属（选矿部分） 2024年第6期 70-77页

作者：莫广得廖幸锦陈建华广西大学资源环境与材料学院省部共建特色金属与组合结构全寿命安全国家重点实验室南宁530004 广西大学化学化工学院南宁530004

广西某多金属硫化矿尾矿在-0.013 mm粒级中含量为56.3%,泥化现象严重。其中Sn品位为1.45%,是主要有价金属,主要赋存于-0.013 mm粒级中,含量高达84.76%,以微细粒锡石的形式存在。微细粒锡石具有质量小、比表面积大、表面能高等物理化学性... 详细信息

广西某多金属硫化矿尾矿在-0.013 mm粒级中含量为56.3%,泥化现象严重。其中Sn品位为1.45%,是主要有价金属,主要赋存于-0.013 mm粒级中,含量高达84.76%,以微细粒锡石的形式存在。微细粒锡石具有质量小、比表面积大、表面能高等物理化学性质,使得选矿实践中长期存在回收率低和精矿品质差等问题。本试验主要采用单一捕收剂和组合捕收剂的方案对该矿样展开浮选研究。结果表明,组合捕收剂较单一捕收剂选锡回收率要高,而单一捕收剂获得的锡精矿品位较高。最终决定采用组合捕收剂GXU-Sn2∶GXU-Sn3=1∶2方案进行实验室锡石浮选闭路试验,经“一粗两扫两精”的锡石浮选工艺流程,最终获得锡精矿Sn品位30.92%、回收率81.13%、作业回收率85.06%的选别指标。为了验证实验室试验确定的最佳药剂制度及工艺流程在连续工业生产中的可行性,在广西某选厂的中试车间开展了微细粒锡石扩大连选试验,最终获得锡精矿Sn品位15.07%、回收率74.69%、作业回收率84.88%的选别指标,其结果表明实验室获得的药剂制度可操性强、选别指标稳定。本文通过实验室小试和扩大连选试验,证明了微细粒锡石是可以通过大量浮选试验制定出相应的药剂制度和浮选工艺流程,获得良好的选别指标。这为今后低品位微细粒锡石的高效回收和新型捕收剂的开发提供了一定的技术参考。

关键词：微细粒锡石单一捕收剂组合捕收剂

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Statistical variances of diffusional properties from ab initio molecular dynamics simulations

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npj Computational Materials 2018年第1期4卷 510-518页

作者： Xingfeng He Yizhou Zhu Alexander Epstein Yifei mo Department of Materials Science and Engineering University of MarylandCollege ParkMD 20742USA Maryland Energy Innovation Institute University of MarylandCollege ParkMD 20742USA

ab initio molecular dynamics(AIMD)simulation is widely employed in studying diffusion mechanisms and in quantifying diffusional properties of ***,AIMD simulations are often limited to a few hundred atoms and a short,sub-nanosecond physical timescale,which leads to models that include only a limited number of diffusion *** a result,the diffusional properties obtained from AIMD simulations are often plagued by poor *** this paper,we re-examine the process to estimate diffusivity and ionic conductivity from the AIMD simulations and establish the procedure to minimize the fitting *** addition,we propose methods for quantifying the statistical variance of the diffusivity and ionic conductivity from the number of diffusion events observed during the AIMD *** an adequate number of diffusion events must be sampled,AIMD simulations should be sufficiently long and can only be performed on materials with reasonably fast *** chart the ranges of materials and physical conditions that can be accessible by AIMD simulations in studying diffusional *** work provides the foundation for quantifying the statistical confidence levels of diffusion results from AIMD simulations and for correctly employing this powerful technique.

关键词： technique materials. diffusion