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The Application of Solid Waste in Thermal Insulation Materials: A Review

Journal of Renewable Materials 2024年第2期12卷 329-347页

作者： Ming liu Pinghua Zhu Xiancui Yan haichao li Xintong Chen School of Environmental Science and Engineering Changzhou UniversityChangzhou213164China School of Urban Construction Changzhou UniversityChangzhou213164China

As socioeconomic development continues,the issue of building energy consumption has attracted significant attention,and improving the thermal insulation performance of buildings has become a crucial strategic measure.Simultaneously,the application of solid waste in insulation materials has also become a hot topic.This paper reviews the sources and classifications of solid waste,focusing on research progress in its application as insulation materials in the domains of daily life,agriculture,and industry.The research shows that incorporating household solid waste materials,such as waste glass,paper,and clothing scraps into cementitious thermal insulation can significantly reduce the thermal conductivity of the materials,leading to excellent thermal insulation properties.Insulation materials prepared from agricultural solid waste,such as barley straw,corn stalk,chicken feather,and date palm fibers,possess characteristics of lightweight and strong thermal insulation.Industrial solid waste,including waste tires,iron tailings,and coal bottom ash,can also be utilized in the preparation of insulation materials.These innovative applications not only have positive environmental significance by reducing waste emissions and resource consumption,but also provide efficient and sustainable insulation solutions for the construction industry.However,to further optimize the mix design and enhance the durability of insulation materials,continuous research is required to investigate the mechanisms through which solid waste impacts the performance of insulation materials.

关键词： Solid waste building energy consumption insulation material sustainability

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Effect of TiB_(2)Addition on Microstructure and Mechanical Properties of AA8009 Alloy Fabricated by Laser Additive Manufacturing

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Acta Metallurgica Sinica(English Letters) 2024年第1期37卷 67-77页

作者： Xinxing Xiong Sijie Yu Pei Wang Junfang Qi haichao li Xulei Wang Michael Ryan Debajyoti Bhaduri Rossitza Setchi Additive Manufacturing Institute Shenzhen UniversityShenzhen518060China Henan Key Laboratory of High Performance Carbon Fiber Reinforced Composites Institute of Carbon Matrix CompositesHenan Academy of SciencesZhengzhou450046China School of Materials Science and Engineering Shanghai University of Engineering ScienceShanghai201620China School of Materials Science and Engineering Zhengzhou University of AeronauticsZhengzhou450046China High-Value Manufacturing Research Group School of EngineeringCardiff UniversityCardiffCF243AAUK

The research involves the addition of 5 vol.%TiB_(2)particles into AA8009 alloy powder to synthesize TiB_(2)/AA8009 composite parts produced via laser powder bed fusion(LPBF).The addition of the TiB_(2)particles causes the TiB_(2)/AA8009 composites with and without annealing have lower compressive strength than AA8009 alloy due to the change of the strengthening mechanism.The results further indicated that solid solution strengthening was the main strengthening mechanism of the LPBF AA8009 alloy at room temperature whereas Orowan strengthening became the primary strengthening factor after annealing at 673 K.In contrast,Orowan strengthening always remained the main strengthening mechanism for the TiB_(2)/AA8009 composite,irrespective of the annealing temperature.In addition,after annealing of the LPBF parts at 673 K,the compressive yield strength(CYS)of the unblended AA8009 alloy specimens had a~2.5 times greater reduction(from 705±16 to 459±30 MPa)compared to that of the composite TiB_(2)/AA8009 samples(from 466±23 to 368±3 MPa).Therefore,TiB_(2)particles can suppress the drop in yield strength of LPBF AA8009 alloy below 673 K,providing a theoretical and experimental basis for the applications of both LPBF AA8009 and TiB_(2)/AA8009 alloys at low and medium temperatures.

关键词： Laser powder bed fusion AA8009 alloy Microstructure Mechanical properties

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Fast spreading of surface ozone in both temporal and spatial scale in Pearl River Delta

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Journal of Environmental Sciences 2024年第3期137卷 540-552页

作者： Tianhui Cao haichao Wang Lei li Xiao Lu Yiming liu Shaojia Fan School of Atmospheric Sciences Sun Yat-sen University and Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai)Zhuhai 519082China Guangdong Provincial Observation and Research Station for Climate Environment and Air Quality Change in the Pearl River Estuary Key Laboratory of Tropical Atmosphere-Ocean SystemMinistry of EducationZhuhai 519082China

Surface ozone(O_(3))is a major air pollutant and draw increasing attention in the Pearl River Delta(PRD),China.Here,we characterize the spatial-temporal variability of ozone based on a dataset obtained from 57 national monitoring sites during 2013-2019.Our results show that:(1)the seasonal difference of ozone distribution in the inland and coastal areas was significant,which was largely affected by the wind pattern reversals related to the East Asian monsoon,and local ozone production and destruction;(2)the daily maximum 8hr average(MDA8 O_(3))showed an overall upward trend by 1.11 ppbv/year.While the trends in the nine cities varied differently by ranging from-0.12 to 2.51 ppbv/year.The hot spots of ozone were spreading to southwestern areas from the central areas since 2016.And ozone is becoming a year-round air pollution problem with the pollution season extending to winter and spring in PRD region.(3)at the central and southwestern PRD cities,the percentage of exceedance days from the continuous type(defined as≥3 days)was increasing.Furthermore,the ozone concentration of continuous type was much higher than that of scattered exceedance type(line since2017,the total number of exceedance days during the continuous type is increasing.These results indicate that it is more difficult to eliminate the continuous exceedance than the scatter pollution days and highlight the great challenge in mitigation of O_(3)pollution in these cities.

关键词： Surface ozone pollution Ozone trend Spatial and temporal variability Pearl River Delta Pollution mitigation

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The Effect of Lateral Offset Distance on the Aerodynamics and Fuel Economy of Vehicle Queues

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Fluid Dynamics & Materials Processing 2024年第1期20卷 147-163页

作者： lili Lei Ze li haichao Zhou Jing Wang Wei lin School of Automotive and Traffic Engineering Jiangsu UniversityZhenjiang212013China

The vehicle industry is always in search of breakthrough energy-saving and emission-reduction technologies.In recent years,vehicle intelligence has progressed considerably,and researchers are currently trying to take advantage of these developments.Here we consider the case of many vehicles forming a queue,i.e.,vehicles traveling at a predetermined speed and distance apart.While the majority of existing studies on this subject have focused on the influence of the longitudinal vehicle spacing,vehicle speed,and the number of vehicles on aerodynamic drag and fuel economy,this study considers the lateral offset distance of the vehicle queue.The group fuel consumption savings rate is calculated and analyzed.As also demonstrated by experimental results,some aerodynamic benefits exist.Moreover,the fuel consumption saving rate of the vehicle queue decreases as the lateral offset distance increases.

关键词： Vehicle platoon automotive aerodynamics horizontal offset distance fuel consumption savings rate computational fluid dynamics

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Ecological transitions in Xinjiang, China:Unraveling the impact of climate change on vegetation dynamics(1990–2020)

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Journal of Geographical Sciences 2024年第6期34卷 1039-1064页

作者： HAO haichao YAO Junqiang CHEN Yaning XU Jianhua li Zhi DUAN Weili Sadaf ISMAIL WANG Guiling Key Laboratory of Geographic Information Science(Ministry of Education) School of Geographic SciencesEast China Normal UniversityShanghai200241China Graduate School of Advanced Integrated Studies in Human Survivability Kyoto UniversityYoshida-Nakaadachi 1Sakyo-kuKyoto 606-8306Japan Field Scientific Experiment Base of Akdala Atmospheric Background Institute of Desert MeteorologyChina Meteorological AdministrationUrumqi 830011China State Key Laboratory of Desert and Oasis Ecology Key Laboratory of Ecological Safety and Sustainable Development in Arid LandsXinjiang Institute of Ecology and GeographyCASUrumqi 830011China School of Geographic Science Nantong UniversityNantong 226007JiangsuChina

For the past several decades, climate change has been driving vegetation dynamics in arid regions worldwide. This study investigates vegetation dynamics and their links to climate from 1990 to 2020 in Xinjiang, China, using data from 30-m resolution land use and cover change, remote sensing, and climate reanalysis. Our approach encompasses a range of analytical techniques, including transfer matrix analysis, modeling, correlation, regression,and trend analysis. During the study period, there were major vegetation conversions from grassland to forestland in the mountains, and from cropland to grassland in the plains. Climate change emerged as an important trigger of these changes, as evidenced by the increase in net primary productivity in most vegetation types, except for cropland-grassland and grassland-cropland conversions. Precipitation and soil moisture were the most influential climatic factors, contributing 15.1% and 15.2%, respectively, to natural vegetation changes.The study also found that evapotranspiration serves as a key mechanism for moisture dissipation in the hydrological cycle of vegetation dynamics. The interplay between precipitation,soil moisture, and evapotranspiration is a critical pattern of climatic influence that shapes vegetation dynamics across zones of intersection, increase, decrease, and change. These insights are invaluable for informing vegetation conservation and development strategies in Xinjiang and other similar environments facing climate-driven ecological transitions.

关键词： climate change ecological transitions LUCC NPP efficiency vegetation dynamics Xinjiang

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Chitosan derived carbon membranes as protective layers on zinc anodes for aqueous zinc batteries

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International Journal of Minerals,Metallurgy and Materials 2023年第4期30卷 621-629页

作者： haichao li Zengwu Wei Yu Xia Junshan Han Xing li School of Materials Science and Chemical Engineering Ningbo UniversityNingbo 315211China

Aqueous zinc batteries with low cost and inherent safety are considered to be the most promising energy storage devices.However,they suffer from poor cycling stability and low coulombic efficiencies caused by the adverse zinc dendrites on the anodes during the discharging/charging processes.Chitosan is a kind of natural amino polysaccharide,which is rich in nitrogen and carbon.When sintered at high temperatures,carbon membranes have been achieved with excellent conductivity and graphitization degree,which could enhance the ability to induce zinc ion uniform deposition to some extent.In this work,a type of carbon membrane using chitosan as raw materials has been fabricated by sintering,and then assembled as the protect layers in aqueous zinc batteries.The results show that the samples could retain smoother surfaces when adopting the sintering temperature of 800℃,and the assembled batteries are able to achieve about 700 h at a current density of 0.25m A·cm^(-2),which is far longer than those of the similar batteries without any carbon membranes.

关键词： carbon membrane dendrites chitosan sintering process zinc batteries

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Preparation and Characterization of Stellera Chamaejasme-Based Carbon Molecular Sieves

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Journal of Renewable Materials 2023年第1期11卷 185-195页

作者： Baian Shen haichao li Zixiang Guo Jingxiao li Yuting Bao Key Laboratory of Applied Physical Chemistry of Qinghai Provincial Qinghai Nationalities UniversityXining810007China

The activation effect of boric acid as an activator is good,and we investigate the best activation conditions for the boric acid impregnation method.To represent the structural characteristics and adsorption performance of the Stellera Chamaejasme based carbon molecular sieves,we use Brunner-Emmet-Teller(BET)measurements,scan-ning electron microscope(SEM),Raman spectra(Raman),X-ray diffraction(XRD),and adsorption property measurement.When the loading ratio was 0.68:1,the specific surface area was 532.21 m^(2)/g,the total pore volume was 0.24 cm 3/g,the average pore size was 1.81 nm,the adsorption value of methylene blue was 145.28 mg/g,and the adsorption value of iodine was 713.33 mg/g,the results showed that boric acid had better activation effect.The carbon molecular sieves made from Stellera Chamaejasme and activated with boric acid produce two peaks on the aperture distribution graph that are densely distributed in the micropore range.This indicates that boric acid’s pore-forming tendency is primarily micropore.

关键词： Carbon molecular sieve Stellera Chamaejasme boric acid impregnation method

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Fabrication of a Hydrophobic Hierarchical Surface on Shale Using Modified Nano-SiO_(2)for Strengthening the Wellbore Wall in Drilling Engineering

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Engineering 2022年第4期8卷 101-110页

作者： Xianbin Huang Jinsheng Sun He li Ren Wang Kaihe Lv haichao li Key Laboratory of Unconventional Oil and Gas Development(China University of Petroleum(East China)) Ministry of EducationQingdao 266580China School of Petroleum Engineering China University of Petroleum(East China)Qingdao 266580China CNPC Engineering Technology R&D Co. Ltd.Beijing 102206China

Wellbore stability is essential for safe and efficient drilling during oil and gas exploration and development.This paper introduces a hydrophobic nano-silica(HNS)for use in strengthening the wellbore wall when using a water-based drilling fluid(WBF).The wellbore-strengthening performance was studied using the linear swelling test,hot-rolling recovery test,and compressive strength test.The mechanism of strengthening the wellbore wall was studied by means of experiments on the zeta potential,particle size,contact angle,and surface tension,and with the use of a scanning electron microscope(SEM).The surface free energy changes of the shale before and after HNS treatment were also calculated using the contact angle method.The experimental results showed that HNS exhibited a good performance in inhibiting shale swelling and dispersion.Compared with the use of water,the use of HNS resulted in a 20%smaller linear swelling height of the bentonite pellets and an 11.53 times higher recovery of water-sensitive shale—a performance that exceeds those of the commonly used shale inhibitors KCl and polyamines.More importantly,the addition of HNS was effective in preventing a decrease in shale strength.According to the mechanism study,the good wellbore-strengthening performance of HNS can be attributed to three aspects.First,the positively charged HNS balances parts of the negative charges of clay by means of electrostatic adsorption,thus inhibiting osmotic hydration.Second,HNS fabricates a lotus-leaf-like surface with a micro-nano hierarchical structure on shale after adsorption,which significantly increases the water contact angle of the shale surface and considerably reduces the surface free energy,thereby inhibiting surface hydration.Third,the decrease in capillary action and the effective plugging of the shale pores reduce the invasion of water and promote wellbore stability.The approach described herein may provide an avenue for inhibiting both the surface hydration and the osmotic hydration of shale.

关键词： Hydrophobic Nanoparticle Shale inhibitor Drilling fluid Wellbore stability

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“献贡”与祭祀——三星堆场景化铜器解析

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考古 2024年第5期 74-80页

作者：黎海超四川大学考古文博学院成都市610065

三星堆“祭祀坑”中出土的器物具有浓厚的祭祀之风。尤其是各类铜器,在埋入“祭祀坑”之前应主要陈于庙堂用于祭祀、典礼。与中原商周王朝的青铜礼制系统相比,三星堆显然拥有不同的祭祀制度和信仰体系。对此已有不少详尽研究,如张昌平... 详细信息

三星堆“祭祀坑”中出土的器物具有浓厚的祭祀之风。尤其是各类铜器,在埋入“祭祀坑”之前应主要陈于庙堂用于祭祀、典礼。与中原商周王朝的青铜礼制系统相比,三星堆显然拥有不同的祭祀制度和信仰体系。对此已有不少详尽研究,如张昌平将“祭祀坑”出土器物分为祭祀者和受祭者、祭器和祭品,提出天地人神的合祭系统[1]。

关键词：铜神坛铜顶尊人像 “献贡” 海贝与象牙资源流通

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文物产地研究的新路径——以铜器为中心

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南方文物 2024年第1期 48-55页

作者：黎海超四川大学考古文博学院

文物产地研究是考古学研究中的重要内容,对于复原区域间文化交流、资源流通模式等重要问题有着不可替代的意义。在未来的中国考古学研究中,文物产地研究必然占据愈来愈重要的地位,这符合考古学“透物见人”的目标。目前关于文物产地的... 详细信息

文物产地研究是考古学研究中的重要内容,对于复原区域间文化交流、资源流通模式等重要问题有着不可替代的意义。在未来的中国考古学研究中,文物产地研究必然占据愈来愈重要的地位,这符合考古学“透物见人”的目标。目前关于文物产地的研究集中于各类高等级及特殊文物或珍稀原材料。其中以商周时期铜器以及历史时期瓷器在产地研究中着墨最多,其次为玉石器等^(①)。

关键词：考古学研究商周时期文物产地产地研究文化交流透物见人玉石器流通模式

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