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Stabilities,mechanical and thermodynamic properties of Al-RE intermetallics:A first-principles study

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Journal of Rare Earths 2022年第2期40卷 345-352,I0006页

作者： tongyu liu Tianyu Ma Yingmin Li Yuyan Ren Weihua liu School of Materials Science and Engineering Shenyang University of TechnologyShenyang 110870China School of Mechanical Engineering Weifang University of Science and Technology Weifang 262700China

Stabilities,mechanical and thermodynamic properties of 87 intermetallics in Al-RE binary system were studied by first-principles based on density functional theory(DFT).The results show that the calculated stabilities at T=0 K are in good agreement with experimental ***2 RE intermetallics exhibit the best stability in Al-RE binary compounds;and the stabilities in descending order are Al2 RE,Al3 RE,AlRE,Al11RE_(3),AlRE2 and AlRE_(3).The calculated Al-RE intermetallics possess mechanical *** hardness and strength of the most Al-RE intermetallics are greater than pure aluminum except AlCe,AlPr,AlEu and *** hardness and strength in descending order are Al11RE_(3),Al3 RE,Al2 RE and *** of AlRE intermetallics exhibit ductility;the others are *** heat capacities of Al-RE intermetallics in ascending order are Al-Sc,Al-Y,*** the contrary,the coefficient of thermal expansion(CTE)in ascending order is Al-lanthanides,Al-Y and Al-Sc.

关键词： Rare earth First-principles Stability Mechanical modulus Heat capacity

随机工况下基于改进ANFIS的锂电池容量衰减实时估计

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仪器仪表学报 2024年第5期45卷 218-226页

作者：刘彤宇陆起涌李旦张建秋王开铟复旦大学电子工程系上海200433 复旦大学义乌研究院义乌322001

锂电池容量的衰减会影响其安全性和稳定性,准确的容量估计能够帮助用户进行更好的决策。目前,广泛使用的黑盒数据驱动模型因其不可解释性很难被应用于安全相关的领域中,并且大多方法都基于固定工况进行特征提取,对具有随机性的实际工况... 详细信息

锂电池容量的衰减会影响其安全性和稳定性,准确的容量估计能够帮助用户进行更好的决策。目前,广泛使用的黑盒数据驱动模型因其不可解释性很难被应用于安全相关的领域中,并且大多方法都基于固定工况进行特征提取,对具有随机性的实际工况不具有普适性。因此,本文构建了一种基于随机工况数据的改进自适应模糊神将网络推理系统(ANFIS)。首先分析了容量衰减的影响因素,据此从电池监测数据中提取和筛选健康特征;其次系统内部利用激活机制简化系统结构,并引入衰减系数更好地拟合电池单体特性;然后通过自适应粒子滤波算法优化模糊聚类中心;最后使用NASA随机工况数据集验证了该系统的有效性,其容量估计RMSE为3.73%。与其他方法相比,本文提出的方法结果精度更高且具有一定的可解释性。

关键词：锂电池模糊推理系统容量估计可解释性

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闽楠挥发性组分提取工艺优化及组学分析

森林与环境学报 2024年第3期44卷 289-297页

作者：刘桐语李荣生杨锦昌袁在翔余纽吴伟煌中国林业科学研究院热带林业研究所广东广州510520 南京林业大学林学院江苏南京210037

为优化闽楠挥发性组分水蒸气蒸馏工艺,并探究闽楠各部位挥发性组分差异。以广东省乐昌市闽楠试验林的叶片、枝条、树干及根系4个部位为试验材料,采用水蒸气蒸馏法,开展单因素试验及正交试验,考察离子溶液浓度、料液比及提取时间3个影响... 详细信息

为优化闽楠挥发性组分水蒸气蒸馏工艺,并探究闽楠各部位挥发性组分差异。以广东省乐昌市闽楠试验林的叶片、枝条、树干及根系4个部位为试验材料,采用水蒸气蒸馏法,开展单因素试验及正交试验,考察离子溶液浓度、料液比及提取时间3个影响因素对挥发性组分产率的影响,确定最佳工艺参数;用气相色谱-质谱联用(GC-MS)技术测定各部位挥发性组分含量。结果表明:(1)叶片挥发性组分最优提取工艺为NaCl浓度45 g·L^(-1)、料液比1∶6、提取时间5 h,产率为0.056%;检测出110种挥发性组分,含量最高的5种组分为β-瑟林烯、β-桉叶醇、双环大根香叶烯、香橙烯、α-衣兰油烯。(2)枝条挥发性组分最优提取工艺为NaCl浓度45 g·L^(-1)、料液比1∶8、提取时间5 h,产率为0.083%;检测出80种挥发性组分,含量最高的5种组分为愈创醇、乙酸愈创木酯、茅苍术醇、γ-桉叶醇和δ-杜松烯。(3)树干挥发性组分最优提取工艺为NaCl浓度30 g·L^(-1)、料液比1∶8、提取时间5 h,产率为0.323%;检测出64种挥发性组分,含量最高的5种组分为茅苍术醇、γ-杜松烯、愈创醇、γ-桉叶醇和马鞭草烯酮。(4)根系挥发性组分最优提取工艺为NaCl浓度30 g·L^(-1)、料液比1∶9、提取时间5 h,产率为1.025%;检测出69种挥发性组分,含量最高的5种组分为茅苍术醇、γ-杜松烯、愈创醇、γ-桉叶醇和马鞭草烯酮。(5)闽楠各部位挥发性组分以萜类和醇类物质居多,占总含量80%以上,4个部位的共有成分仅15种,叶片与其他3个部位的成分差异较大。

关键词：闽楠挥发性组分提取工艺水蒸气蒸馏法正交试验气相色谱-质谱联用(GC-MS) 代谢组学

大学生数字人民币App使用意愿的影响因素研究

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市场周刊 2024年第28期37卷 86-90页

作者：施冰露叶婷玉刘桐雨浙江万里学院浙江宁波315100 衡阳师范学院河南衡阳421010

研究大学生数字人民币App使用意愿的影响因素,有利于提高数字人民币App的校园应用场景的适配性,提高在校大学生对数字人民币App的认可度。文章以宁波市大学生为研究对象,基于UTAUT模型分析大学生数字人民币App使用意愿的影响因素。基于... 详细信息

研究大学生数字人民币App使用意愿的影响因素,有利于提高数字人民币App的校园应用场景的适配性,提高在校大学生对数字人民币App的认可度。文章以宁波市大学生为研究对象,基于UTAUT模型分析大学生数字人民币App使用意愿的影响因素。基于问卷调查所收集的数据,对该群体对数字人民币App的认知程度、使用情况和消费偏好进行统计分析。最后,根据研究结论提出进一步促进数字人民币App推广和营销的优化建议。

关键词：数字人民币App 使用意愿大学生

CENPA-driven STMN1 Transcription Inhibits Ferroptosis in Hepatocellular Carcinoma

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Journal of Clinical and Translational Hepatology 2023年第5期11卷 1118-1129页

作者： Daomiao Liang Lanzhu Luo Jiang Wang tongyu liu Chao Guo Department of Hepatobiliary Surgery The First Affiliated Hospital of Hunan Normal University(Hunan Provincial People's Hospital)ChangshaHunanChina Children’s Medical Center The First Affiliated Hospital of Hunan Normal University(Hunan Provincial People's Hospital)ChangshaHunan China

Background and Aims:The growing knowledge of ferroptosis has suggested the regulatory role of ferroptosis in hepatocellular carcinoma(HCC),but the pertinent molecular mechanisms remain ***,this study investigated the mechanistic basis of ferroptosis-related genes(ferrGenes)in the growth of ***:Differentially expressed human ferrGenes and tumor-related transcription factors(TFs)were obtained from the The Cancer Genome Atlas(TCGA)dataset and the GTEx *** method-based correlation analysis were conducted to construct TF-ferrGene coexpression regulatory *** genes associated with prognosis were singled out with Lasso regression and multivariate Cox analysis to construct the prognostic risk *** the accuracy and independent prognostic ability of the model were *** of CENPA and STMN1 was determined in clinical HCC tissues and HCC cells,and their binding was analyzed with dual-luciferase and chromatin immunoprecipitation(ChIP)***,ectopic expression and knockdown assays were performed in HCC cells to assess the effect of CENPA and STMN1 on ferroptosis and malignant ***:The prognostic risk model constructed based on the eight TF-ferrGene regulatory network-related genes accurately predicted the prognosis of HCC *** was strongly related to the clinical characteristics of HCC ***,CENPA/STMN1 might be a key TF-ferrGene regulatory network in ferroptosis of *** and STMN1 were overexpressed in HCC tissues and ***,CENPA facilitated STMN1 transcription by binding to STMN1 promoter,thus facilitating the malignant phenotypes and suppressing the ferroptosis of HCC ***:Taken together,CENPA curbs the ferroptosis of HCC cells by upregulating STMN1 transcription,thereby promoting HCC growth.

关键词： Ferroptosis Transcription factor Hepatocellular carcinoma Ferroptosis-related genes TF-ferrgene regulatory network Prognostic risk model CENPA STMN1

Laser Methane Sensor and the Study of Cross Interference

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Journal of Beijing Institute of Technology 2018年第3期27卷 419-425页

作者： Yanfang Li Yuejin Zhao Tingting Zhang Jie Hu Yubin Wei tongyu liu School of Optoelectronics Beijing Institute of Technology Shandong Key Laboratory of Optical Fiber Sensing Technologies

A methane sensor system was designed based on tunable diode laser absorption spectroscopy(TDLAS)technology and the feature of vertical cavity surface emitting laser(VCSEL)with wavelengths up to several *** studied the gas present in the methane sensor’s common operation *** absorption spectrum stimulation and experiments,we analyzed the cross interference of the gas of H2 O,CO and CO2 to methane *** results prove that this laser methane sensor has the characteristics of high stability and anti-cross interference.

关键词： tunable diode laser absorption spectroscopy(TDLAS) vertical cavity surface emitting laser(VCSEL) methane sensor cross interference

Optimization of Agrobacterium tumefaciens-Mediated Genetic Transformation of Maize

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Phyton-International Journal of Experimental Botany 2022年第2期91卷 363-374页

作者： Mengtong liu Yangyang Zhou tongyu liu Jianyu Lu Jing Qu Shuyan Guan Yiyong Ma College of Life Sciences Jilin Agricultural UniversityChangchun130118China College of Agronomy Jilin Agricultural UniversityChangchun130118China

Immature embryos of inbred maize(Zea mays)lines(H8183,H8184,and H8185)were used for Agrobacterium *** used theβ-glucuronidase gene(GUS)as the target gene and the glufosinate resistance gene(bar)as the selection *** conducted research on several aspects,such as different genotypes,coculture conditions,screening agent concentrations,and concentrations of indole-3-butytric acid(IBA),6-benzylaminopurine(6-BA),and ascorbic acid(Vc)in the differentiation *** optimized the genetic transformation system,and the obtained results indicated that among the three lines studied,the induction rate of H8185 was the highest at 93.2%,followed by H8184,with H8183 having the lowest induction rate(80.1%).The best coculture method was that using the N6 coculture medium layered with a sterile filter *** orthogonal analysis,we found that the optimal combination of the three factors in the differentiation medium was A_(3)(1 mg mL^(−1)IBA),B_(3)C_(1)(1.6 mg mL^(−1)6-BA),and D_(3)(1.5 mg mL^(−1)Vc).Through GUS staining analysis,Bar test-strip analysis,and polymerase chain reaction,five transgenic plants were finally *** study established the optimal conditions for genetic transformation in maize.

关键词： Maize optimization genetic regeneration immature embryos Agrobacterium-mediated transformation

Rapamycin reverses ferroptosis by increasing autophagy in MPTP/MPP+-induced models of Parkinson's disease

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Neural Regeneration Research 2023年第11期18卷 2514-2519页

作者： tongyu liu Peihan Wang Huan Yin Xiangfei Wang Jing Lv Jiang Yuan Jing Zhu Yunfu Wang Department of Neurology Affiliated Taihe HospitalHubei University of MedicineShiyanHubei ProvinceChina Institute of Neuroscience Hubei University of MedicineShiyanHubei ProvinceChina Wudang Mountain Hospital Area of Taihe Hospital Affiliated Hospital of Hubei University of MedicineShiyanHubei ProvinceChina

Parkinson’s disease is a neurodegenerative disorder,and fe rroptosis plays a significant role in the pathological mechanism underlying Parkinson’s ***,an autophagy inducer,has been shown to have neuroprotective effects in Parkinson’s ***,the link between rapamycin and ferroptosis in Parkinson’s disease is not entirely *** this study,rapamycin was administe red to a 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine-induced Parkinson’s disease mouse model and a 1-methyl-4-phenylpyridinium-induced Parkinson’s disease PC12 cell *** results showed that rapamycin improved the behavioral symptoms of Parkinson’s disease model mice,reduced the loss of dopamine neurons in the substantia nigra pars compacta,and reduced the expression of ferroptosis-related indicators(glutathione peroxidase 4,recombinant solute carrier family 7,member 11,glutathione,malondialdehyde,and reactive oxygen species).In the Parkinson’s disease cell model,rapamycin improved cell viability and reduced ferro *** neuroprotective effect of rapamycin was attenuated by a ferroptosis inducer(methyl(1S,3R)-2-(2-chloroacetyl)-1-(4-methoxycarbonylphenyl)-1,3,4,9-tetrahyyridoindole-3-carboxylate)and an autophagy inhibitor(3-methyladenine).Inhibiting ferro ptosis by activating autophagy may be an important mechanism by which rapamycin exerts its neuroprotective *** re,the regulation of ferroptosis and autophagy may provide a therapeutic target for drug treatments in Parkinson’s disease.

关键词： autophagy behavior ferroptosis MPTP Parkinson’s disease PC12 cell rapamycin tyrosine hydroxylase

Meta-Analysis of Flowering-Related Traits and Mining of Candidate Genes in Maize

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Phyton-International Journal of Experimental Botany 2022年第6期91卷 1199-1209页

作者： Jianyu Lu Qingping Jiang tongyu liu Yangyang Zhou Mengtong liu Jing Qu Yiyong Ma Shuyan Guan College of Life Sciences Jilin Agricultural UniversityChangchun130118China College of Agronomy Jilin Agricultural UniversityChangchun130118China

Maize flowering is an important agronomic character,which is controlled by quantitative trait loci(QTL).Over the years,a large number of flowering-related QTL have been found in maize and exist in public ***,combining these data,re-analyzing and mining candidate loci and fine mapping of flowering-related traits to reduce confidence intervals has become a hot issue in *** this study,the QTL of 6 important agronomic traits of maize flowering were collected from 15 published articles,including flowering period(DA),Days to tasseling(DTT),Days to silking(DS),Days to pollen shedding(DTP),anthesis-silking interval(ASI)and the photosensitive(PS).Through meta-analysis,622 QTL were integrated into 26 meta-QTLs(MQTL).Finally,the candidate genes related to maize flowering(Gene IDs:ZM00001D005791,ZM00001D019045,ZM00001D050697,ZM00001D011139)were identified by Gene Ontology(GO)enrichment and hierarchical cluster analysis of expression *** on the results of this study,the genetic characteristics of maize flowering traits will be further analyzed,which is of great significance to guide the improvement of important agronomic characters and improve the efficiency of breeding.

关键词： Maize flowering-related traits meta-analysis MQTL candidate gene