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Prediction of the undrained shear strength of remolded soil with non-linear regression,fuzzy logic,and artificial neural network

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Journal of mountain Science 2024年第9期21卷 3108-3122页

作者： YÜNKÜl Kaan KARAÇOR Fatih GÜRBÜZ Ayhan BUDAK TahsinÖmür Department of Civil Engineering Faculty of Engineering and ArchitectureTokat Gaziosmanpaşa UniversityTokat 60100Türkiye Department of Civil Engineering Faculty of Engineering and ArchitectureKafkas UniversityKars 36000Türkiye Department of Civil Engineering Faculty of EngineeringGazi UniversityAnkara 06570Türkiye ministry of Youth and Sports Ankara 06090Türkiye

This study aims to predict the undrained shear strength of remolded soil samples using non-linear regression analyses,fuzzy logic,and artificial neural network modeling.A total of 1306 undrained shear strength results from 230 different remolded soil test settings reported in 21 publications were collected,utilizing six different measurement *** water content,plastic limit,and liquid limit were used as input parameters for fuzzy logic and artificial neural network modeling,liquidity index or water content ratio was considered as an input parameter for non-linear regression *** non-linear regression analyses,12 different regression equations were derived for the prediction of undrained shear strength of remolded ***-Forward backpropagation and the TANSIG transfer function were used for artificial neural network modeling,while the mamdani inference system was preferred with trapezoidal and triangular membership functions for fuzzy logic *** experimental results of 914 tests were used for training of the artificial neural network models,196 for validation and 196 for *** was observed that the accuracy of the artificial neural network and fuzzy logic modeling was higher than that of the non-linear regression ***,a simple and reliable regression equation was proposed for assessments of undrained shear strength values with higher coefficients of determination.

关键词： Undrained shear strength liquidity index Water content ratio Non-linear regression Artificial neural networks Fuzzy logic

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Generation of polarized electron beams through self-injection in the interaction of a laser with a pre-polarized plasma

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High Power laser Science and Engineering 2024年第3期12卷 62-68页

作者： l.R.Yin X.F.li Y.J.Gu N.Cao Q.Kong m.Büscher S.m.Weng m.Chen Z.m.Sheng Key laboratory of Nuclear Physics and Ion-beam Application(moE) Institute of Modern PhysicsDepartment of Nuclear Science and TechnologyFudan UniversityShanghaiChina State Key laboratory of High Field laser Physics Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghaiChina SANKEN(Institute of Scientific and Industrial Research) Osaka UniversityOsakaJapan Sichuan Research Institute Shanghai Jiao Tong UniversityChengduChina Peter Grünberg Institut(PGI-6) Forschungszentrum JülichJülichGermany Institut für laser-und Plasmaphysik Heinrich-Heine-Universität DüsseldorfDüsseldorfGermany Key laboratory for laser Plasmas(moE) School of Physics and AstronomyShanghai Jiao Tong UniversityShanghaiChina Collaborative Innovation Center of IFSA Shanghai Jiao Tong UniversityShanghaiChina Tsung-Dao lee Institute Shanghai Jiao Tong UniversityShanghaiChina

Polarized electron beam production via laser wakefield acceleration in pre-polarized plasma is investigated by particlein-cell *** evolution of the electron beam polarization is studied based on the Thomas±Bargmann±michel±Telegdi equation for the transverse and longitudinal self-injection,and the depolarization process is found to be influenced by the injection *** the case of transverse self-injection,as found typically in the bubble regime,the spin precession of the accelerated electrons is mainly influenced by the ***,in the case of longitudinal injection in the quasi-1D regime(for example,*** et al.,***.110,135002(2013)),the direction of electron spin oscillates in the laser *** the electrons move around the laser axis,the net influence of the laser field is nearly zero and the contribution of the wakefield can be ***,an ultra-short electron beam with polarization of 99%can be obtained using longitudinal self-injection.

关键词： laser wakefield acceleration longitudinal self-injection particle-in-cell simulation polarized electron beam

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Tailoring Iron-Ion Release of Cellulose-Based Aerogel-Coated Iron Foam for long-Term High-Power microbial Fuel Cells

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Transactions of Tianjin University 2024年第5期30卷 436-447页

作者： Zhengyang ni Huitao Yu Haoran Wang mengmeng Qin Feng li Hao Song Xiangyu Chen Yiyu Feng Wei Feng School of material Science and Engineering Tianjin University School of Chemical Engineering and Technology Tianjin University Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of Sciences

The presence of iron（Fe） has been found to favor power generation in microbial fuel cells（mFCs）. To achieve long-term power production in mFCs, it is crucial to effectively tailor the release of Fe ions over extended operating periods. In this study, we developed a composite anode（A/IF） by coating iron foam with cellulose-based aerogel. The concentration of Fe ions in the anode solution of A/IF anode reaches 0.280 μg/ml(Fe2+vs. Fe3+= 61%:39%) after 720 h of aseptic primary cell operation. This value was significantly higher than that(0.198 μg/ml, Fe2+vs. Fe3+= 92%:8%) on uncoated iron foam（IF）, indicating a continuous release of Fe ions over long-term operation. Notably, the resulting mFCs hybrid cell exhibited a 23% reduction in Fe ion concentration（compared to a 47% reduction for the IF anode） during the sixth testing cycle（600–720 h）. It achieved a high-power density of 301 ± 55 mW/m2at 720 h, which was 2.62 times higher than that of the IF anode during the same period. Furthermore, a sedimentary microbial fuel cell（SmFCs） was constructed in a marine environment, and the A/IF anode demonstrated a power density of 103 ± 3 mW/m2at 3240 h, representing a 75% improvement over the IF anode. These findings elucidate the significant enhancement in long-term power production performance of mFCs achieved through effective tailoring of Fe ions release during operation.

关键词： Coating Fe ions long-term microbial fuel cells Tailor release

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Electrokinetic-mechanism of water and furfural oxidation on pulsed laser-interlaced Cu_(2)O and CoO on nickel foam

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Journal of Energy Chemistry 2024年第4期91卷 145-154页

作者： Yewon Oh Jayaraman Theerthagiri m.l.Aruna Kumari Ahreum min Cheol Joo moon myong Yong Choi Department of Chemistry(BK21 FOUR) Research Institute of Natural SciencesGyeongsang National UniversityJinju 52828Republic of Korea Department of Chemistry The Oxford College of ScienceBengaluruKarnataka 560102India Core-Facility Center for Photochemistry&Nanomaterials Gyeongsang National UniversityJinju 52828Republic of Korea

The electrocatalytic oxidation of biomass-derived furfural(FF)feedstocks into 2-furoic acid(FA)holds immense industrial potential in optics,cosmetics,polymers,and ***,we fabricated Co O/ni O/nickel foam(NF)and Cu_(2)O/ni O/NF electrodes via in situ pulsed laser irradiation in liquids(PlIl)for the bifunctional electrocatalysis of oxygen evolution reaction(OER)and furfural oxidation reaction(FOR),*** oxidation of NF surface to niO and deposition of CoO and/or Cu_(2)O on NF during PlIl offer distinct advantages for enhancing both the OER and ***/niO/NF electrocatalyst provides a consistently low overpotential of~359 m V(OER)at 10 m A/cm^(2),achieving the maximum FA yield(~16.37 m m)with 61.5%selectivity,79.5%carbon balance,and a remarkable Faradaic efficiency of~90.1%during 2 h of FOR at 1.43 V(*** hydrogen electrode).mechanistic pathway via in situ electrochemical-Raman spectroscopy on CoO/niO/NF reveals the involvement of phase transition intermediates(niOOH and CoOOH)as surface-active centers during electrochemical *** carbonyl carbon in FF is attacked by hydroxyl groups to form unstable hydrates that subsequently undergo further oxidation to yield FA *** method holds promise for large-scale applications,enabling simultaneous production of renewable building materials and fuel.

关键词： Pulsed laser irradiation in liquids Water and furfural oxidation In situ Raman spectroscopy CoO/niO/nickel foam Cu_(2)O/nio/nickel foam 2-furoic acid

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Enhanced homing of mesenchymal stem cells for in situ niche remodeling and bone regeneration

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Nano Research 2024年第8期17卷 7449-7460页

作者： Yin Yuan lijun Chen Jing Yang Sining Zhou Yangxin Fang Qi Zhang ning Zhang Yifei li li Yuan Fan Jia Shuo ni Charlie Xiang State Key laboratory for Diagnosis and Treatment of Infectious Diseases National Clinical Research Center for Infectious DiseasesNational Medical Center for Infectious DiseasesCollaborative Innovation Center for Diagnosis and Treatment of Infectious DiseasesThe First Affiliated HospitalZhejiang University School of MedicineHangzhou 310003China Department of Biology The David H.Koch Institute for Integrative Cancer Research at MITMassachusetts Institute of TechnologyCambridgeMA 02139USA Research Units of Infectious disease and microecology Chinese Academy of Medical SciencesHangzhou 310003China Innovative Precision medicine(IPm)Group Hangzhou 311215China mOE Key laboratory of macromolecule Synthesis and Functionalization of ministry of Education Department of Polymer Science and EngineeringZhejiang UniversityHangzhou 310027China Key laboratory of Cardiovascular Intervention and Regenerative medicine of Zhejiang Province Department of CardiologySir Run Run Shaw HospitalZhejiang University School of MedicineHangzhou 310016China Department of Cancer Immunology and Virology Dana-Farber Cancer InstituteBostonMA 02215USADepartment of ImmunologyHarvard Medical SchoolBoston MA 02115USA Department of Orthopedic Surgery and Shanghai Institute of microsurgery on Extremities Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiaotong University School of MedicineShanghai 200233China

mesenchymal stem cells(mSCs)transplantation is a promising strategy for osteoporosis ***,limited sources and poor tissue-homing efficiency limit their clinical *** this study,we isolated a kind of mSCs from women’s menstrual blood(menSCs)noninvasively and established a novel mSCs bone marrow-targeted delivery system by utilizing waterin-oil-in-water droplet *** were encapsulated withinβ-cyclodextrin-functionalized alginate microcapsules loaded with zoledronates,which has a high affinity for *** this delivery system,menSCs could be preferentially delivered to the bone marrow tissues via intravenous infusion,and restored bone mass by remodeling the bone marrow niche in situ in ovariectomized mouse ***,scRNA-seq analysis demonstrated that those menSCs homed to the bone marrow recruited CD4^(+)FOXP3^(+)natural regulatory T(nT_(reg))cells by secreting *** recruited nTreg promoted CD8^(+)T cells to secret Wnt family member 10B(WNT10B),activating the Wnt signaling in osteoblasts and thus promoting bone formation in situ in the bone *** study reveals a promising application of menSCs in postmenopausal osteoporosis treatment and highlights the clinical value of menSCs by encouraging women to reserve autologous menSCs before menopause to prevent and alleviate postmenopausal osteoporosis.

关键词： mesenchymal stem cells microfluidics bone marrow homing stem cell niche postmenopausal osteoporosis

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Wildfire severity alters soil microbial exoenzyme production and fungal abundances in the southern Appalachian mountains

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Pedosphere 2024年第5期34卷 865-878页

作者： megan l.SCHIll Richard BAIRD Shawn P.BROWN Allison m.VEACH Department of Integrative Biology University of Texas at San Antonio Biochemistry Molecular Biology Entomology and Plant Pathology Department Mississippi State University Department of Biological Sciences The University of Memphis

Climate change has increased drought frequency and duration that are exacerbated by increased temperatures globally. This effect has, and will continue,to increase fire occurrence across many regions of North America. In the southern Appalachian mountains, wildfires with high burn severity occurred in 2016due to increased drought and human activity. To investigate the effects of burn severity on soil physicochemical properties, microbial extracellular enzyme production, and microbial abundances in a temperate region, surface soils (0–15 cm) were collected from two sites (the Great Smoky mountains National Park in Tennessee and the Nantahala National Forest in North Carolina, USA) spanning lightly, moderately, and severely burned areas, accompanied by adjacent unburned locations that act as controls. The soil samples were collected at three time points between 2017 and 2019 (i.e., 0.5, 1, and 2.5 years post-fire)among burn severity plots. Total hydrolytic enzyme production varied over time, with severe burn plots having significantly lower enzyme production at 2.5years post-fire. Individual enzymes varied among burn severities and across time post-fire. light burn plots showed greater carbon-specific (β-glucosidase and β-xylosidase) and phosphorus-specific (acid phosphatase) enzyme activities at 0.5 years post-fire, but this effect was transient. At 2.5 years post-fire, theβ-xylosidase and acid phosphatase activities were lower in severe or moderate burn plots relative to the controls. In contrast, the activity of nitrogen-specific enzyme leucyl aminopeptidase was the lowest in severe burn plots at 0.5 years post-fire, but was the lowest in light burn plots at 2.5 years post-fire. The fungi:bacteria ratio declined with burn severity, indicating that fungi are sensitive or less resilient to high burn severity during recovery. These results suggest that wildfires alter trajectories for soil microbial structure and function within a 2.5-year timeframe, which potentially

关键词： 16S rRNA burn severity extracellular enzyme fungi:bacteria ratio internal transcribed spacer microbial structure

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Selective photosynthesis of Z-olefins through crystalline metal-organic cage-initiated expeditious cascade reactions

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Carbon Energy 2024年第3期6卷 118-131页

作者： Jia-ni lu Yunze Huang Yuan-Sheng Xia long-Zhang Dong lei Zhang Jing-Jing liu lan-Gui Xie Jiang liu Ya-Qian lan Jiangsu Key laboratory of New Power Batteries School of Chemistry and Materials ScienceJiangsu Collaborative Innovation Centre of Biomedical Functional MaterialsNanjing Normal UniversityNanjingChina School of Chemistry South China Normal UniversityGuangzhouChina

The semi-hydrogenation of alkyne to form Z-olefins with high conversion and high selectivity is still a huge challenge in the chemical ***,flammable and explosive hydrogen as the common hydrogen source of this reaction increases the cost and danger of industrial ***,we connect the photocatalytic hydrogen evolution reaction and the semihydrogenation reaction of alkynes in series and successfully realize the high selective production of Z-alkenes using low-cost,safe,and green water as the proton *** the cascade reaction,a series of isomorphic metal–organic cage catalysts(Co_(x)Zn_(8−x)l_(6),x=0,3,4,5,and 8)are designed and synthesized to improve the yield of the photocatalytic hydrogen *** them,Co_(5)Zn_(3)l_(6) shows the highest photocatalytic activity,with a H_(2) generation rate of 8.81 mmol g^(−1) h^(−1).Then,Co_(5)Zn_(3)l_(6) is further applied in the above tandem reaction to efficiently reduce alkynes to Z-alkenes under ambient conditions,which can reach high conversion of>98%and high selectivity of>99%,and maintain original catalytic activity after multiple ***“one-pot”tandem reaction can achieve a highly selective and safe stepwise conversion from water into hydrogen into Z-olefins under mild reaction conditions.

关键词： alkyne semi-hydrogenation hydrogen evolution reaction metal-organic cages photocatalysis Z-olefins

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Empirical model for fusion cross sections of Ca-induced reactions

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Chinese Physics C 2024年第3期48卷 126-132页

作者： Reddi Rani.l N.Sowmya K.N Sridhar H C.manjunatha m.m.Armstrong Arasu Department of Physics St.Joseph's College(Autonomous)Affiliated to Bharathidasan UniversityTiruchirappalli620002TNIndia Department of Physics Govt.First.Grade CollegeChikkaballapur-562101KarnatakaIndia Department of Physics Govt.First.Grade CollegeMalur-563160KarnatakaIndia Department of Physics Govt.First.Grade CollegeDevanahalli-562110KarnatakaIndia

A new empirical formula for the astrophysical S-factor has been suggested as a function of the Coulomb interaction parameter,center of mass energy,and barrier *** 22 fusion reactions with ^(40,48)Ca as projectiles were considered for different targets,leading to compound nuclei with atomic and mass numbers varying between 40≤Z≤≤Z≤112 and 88≤A≤27888≤A≤278,*** fusion cross-sections have been estimated using the geometric factor,the Gamow-Sommerfield factor,and the empirical formula for the *** study's findings showed better agreement with those of available experiments when compared to Wong's *** present work leads to a smaller standard deviation value than Wong's formula when used to correlate the experimental data of calcium-induced fusion ***'s formula provides a good approximation of fusion cross-sections when the center of mass energy is below the fusion barrier when compared to above the fusion barrier.

关键词： fusion cross-sections Wong formula Gamow-Sommerfield-factor Geometric-factor S-factor

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Roles of concentration-dependent Cu doping behaviors on the thermoelectric properties of n-type mg_(3)Sb_(1.5)Bi_(0.5)

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Journal of materiomics 2024年第1期10卷 154-162页

作者： Xinxin Yang Heng ni Xiaotong Yu Biao Cao Juanjuan Xing Qiyong Chen lili Xi Jiandang liu Jiye Zhang Kai Guo Jing-Tai Zhao School of materials Science and Engineering Shanghai University99 Shangda RoadShanghai200444China materials Genome Institute Shanghai University99 Shangda RoadShanghai200444China State Key laboratory of Particle Detection and Electronics University of Science and Technology of ChinaHefeiAnhui230026China School of Physics and materials Science Guangzhou UniversityGuangzhou510006China Research Center for Advanced Information materials(CAIm) Huangpu Research&Graduate School of Guangzhou UniversitySino-Singapore Guangzhou Knowledge CityHuangpu DistrictGuangzhou510555China Key lab of Si-based Information materials&Devices and Integrated Circuits Design Department of Education of Guangdong ProvinceChina School of materials Science and Engineering Guilin University of Electronic TechnologyGuilin541004China Guangxi Key laboratory of Information materials Guilin University of Electronic TechnologyGuilin541004China

large Seebeck coefficients induced by high degeneracy of conduction band minimum,and low intrinsic lattice thermal conductivity originated from large lattice vibrational anharmonicity render mg_(3)Sb_(2)as a promising n-type thermoelectric ***,we demonstrated unique concentration-dependent occupation behaviors of Cu in mg_(3.4)Sb_(1.5)Bi_(0.49)Te_(0.01)matrix,evidenced by structural characterization and transport property *** is found that Cu atoms prefer to enter the interstitial lattice sites in mg_(3)Sb_(2)host with low doping level(mg_(3.4)Sb_(1.5)Bi_(0.49)Te_(0.01)+x%Cu,xl electrons without deteriorating the carrier *** x is larger than 0.3%,the excessive Cu atoms are inclined to substitute mg atoms,yielding acceptors to decrease the electron *** a result,the electrical conductivity of the mg_(3.4)Sb_(1.5)Bi_(0.49)Te_(0.01)+0.3%Cu sample reaches 2.3×10^(4)S/m at 300 K,increasing by 300%compared with that of the pristine *** figure of merit zT values in the whole measured temperature range are significantly improved by the synergetic improvement of power factor and reduction of thermal *** average zT∼1.07 from 323 K to 773 K has been achieved for the mg_(3.4)Sb_(1.5)Bi_(0.49)Te_(0.01)+0.3%Cu sample,which is about 30%higher than that of the mg_(3.4)Sb_(1.5)Bi_(0.49)Te_(0.01) sample.

关键词： mg_(3)Sb_(2) Cu doping Concentration-dependent occupation Thermoelectric properties Average zT

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RNA viromes of Dermacentor nuttalli ticks reveal a novel uukuvirus in Qinghai Province,China

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Virologica Sinica 2024年第4期39卷 537-545页

作者： Yaohui Fang Jun Wang Jianqing Sun Zhengyuan Su Shengyao Chen Jian Xiao Jun ni Zhihong Hu Yubang He Shu Shen Fei Deng Key laboratory of Special Pathogens and Biosafety and National Virus Resource Center Wuhan Institute of VirologyChinese Academy of SciencesWuhan 430071China University of Chinese Academy of Sciences Beijing 101408China Qinghai lake National Nature Reserve Administration Xining 810000China Hubei Jiangxia laboratory Wuhan 430200China Xinjiang Key laboratory of Vector-borne Infectious Diseases Urumqi830002China

Ticks are a major parasite on the Qınghai-Tibet Plateau,western China,and represent an economic burden to agriculture and animal *** research on tick-borne pathogens that threaten humans and animals,the viromes of dominant tick species in this area remain *** this study,we collected Dermacentor nuttalli ticks near Qınghai lake and identified 13 viruses belonging to at least six families through metagenomic *** viruses were of high abundance in pools,including Xınjiang tick-associated virus 1(XJTAV1),and three novel viruses:Qınghai lake virus 1,Qınghai lake virus 2(QHlV1,and QHlV2,unclassified),and Qınghai lake virus 3(QHlV3,genus Uukuvirus of family Phenuiviridae in order Bunyavirales),which lacks the m *** minimum infection rates of the four viruses in the tick groups were 8.2%,49.5%,6.2%,and 24.7%,respectively,suggesting the prevalence of these viruses in *** ticks.A putative m segment of QHlV3 was identified from the next-generation sequencing data and further characterized for its signal peptide cleavage site,N-glycosylation,and transmembrane ***,we probed the l,m,and S segments of other viruses from sequencing data of other tick pools by using the putative m segment sequence of *** revealing the viromes of *** ticks,this study enhances our understanding of tick-borne viral communities in highland *** putative m segment identified in a novel uukuvirus suggests that previously identified uukuviruses without m segments should have had the same genome organization as typical *** findings will facilitate virus discovery and our understanding of the phylogeny of tick-borne uukuviruses.

关键词： Dermacentor nuttalli Qınghai Province Virome Uukuvirus m segment

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