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Modelling and numerical simulation of isothermal oxidation of an individual magnetite pellet based on computational fluid dynamics

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Journal of Iron and Steel Research International 2021年第7期28卷 799-808页

作者： Zhou Pu Feng Zhou yue sun Ming Zhang Bo-quan Li Department of Instrumentation Science and Technology Jiangsu UniversityZhenjiang 212013JiangsuChina

A mathematical model based on the computational fluid dynamics method,heat and mass transfer in porous media and the unreacted shrinking core model for the oxidation reaction of an individual magnetite pellet during preheating was *** commercial software cOMSOL Multiphysics was used to simulate the change in the oxidation degree of the pellet at different temperatures and oxygen concentrations,and the simulated results were compared with the exper-imental *** model considered the influence of the exothermic heat of the reaction,and the enthalpy change was added to calculate the heat released by the *** results show that the oxidation rate on the surface of the pellet is much faster than that of the inside of the *** and oxygen concentration have great influence on the pellet oxidation ***,the exothermic calculation results show that there is a non-isothermal phenomenon inside the pellet,which leads to an increase in temperature inside the single *** the preheating condition of 873-1273 K(20%oxygen content),the heat released by the pellet oxidation reaction in a chain grate is 7.8×10^(6)-10.8×10^(6) kJ/h,which is very large and needs to be considered in the magnetite pellet oxidation modelling.

关键词： Magnetite pellet Oxidation Numerical simulation Unreacted shrinking core model computational fluid dynamics

Towards a better prediction of subcellular location of long non-coding RNA

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Frontiers of computer Science 2022年第5期16卷 205-211页

作者： Zhao-yue ZHANG Zi-Jie sun Yu-He YANG Hao LIN Key Laboratory for NeuroInformation of Ministry of Education School of Life Science and Technology and Center for Informational BiologyUniversity of Electronic Science and Technology of ChinaChengdu 610054China

The spatial distribution pattern of long non-coding RNA(lncRNA)in cell is tightly related to their *** the increment of publicly available subcellular location data,a number of computational methods have been developed for the recognition of the subcellular localization of ***,these computational methods suffer from the low discriminative power of redundant features or overfitting of *** address those issues and enhance the prediction performance,we present a support vector machine-based approach by incorporating mutual information algorithm and incremental feature selection *** a result,the new predictor could achieve the overall accuracy of 91.60%.The highly automated web-tool is available at ***/server/iLoc-LncRNA(2.0)/*** will help to get the knowledge of lncRNA subcellular localization.

关键词： lncRNA subcellular localization support vector machine mutual information Web server

controlled Synthesis of Nanoscale cdTe Urchins

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chemical Research in chinese Universities 2009年第2期25卷 147-150页

作者： BAO Jian SHEN yue sun Yan yue Yang cHEN Xin DAI Ning National Laboratory for Infrared Physics Shanghai Institute of Technical Physics Chinese Academy of Sciences Shanghai 200083 P R. China

We presented a simple route to prepare nanoscale cdTe urchins in a tri-n-octylphosphine oxide（TOPO） system. cdTe urchins consisted of a core and several attached arms. The arms were ca. 3 nm wide, and their lengths could be controlled with the reaction time. The authors investigated the optical absorption and structural properties of the prepared cdTe. The lengths of the arms could be tuned into cdTe nanourchins, which led to a change in the photophysical properties of the nanoscale cdTe urchins. The results, including transmission electron microscopy（TEM） and absorption spectra, indicated that mesoporous silica and aminopropyltriethoxysilane（APTES） contributed to the formation of nanoscale cdTe urchins.

关键词： cdTe Nanoparticle Semiconductor Mesoporous silica

Trajectory Predictions with Details in a Robotic Twin-crane System

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complex System Modeling and Simulation 2022年第1期2卷 1-17页

作者： Ning Zhao Gabriel Lodewijks Zhuorui Fu Yu sun yue sun School of Mechanical Engineering University of Science and Technology BeijingBeijing 100083China School of Aviation University of New South WalesSydney 2052Australia

Nowadays,more automated or robotic twin-crane systems(RTcSs)are employed in ports and factories to improve material handling *** a twin-crane system,cranes must travel with a minimum safety distance between them to prevent *** crane trajectory prediction is critical to interference handling and crane *** trajectory predictions lack accuracy because many details are *** enhance accuracy and lessen the trajectory prediction time,a trajectory prediction approach with details(crane acceleration/deceleration,different crane velocities when loading/unloading,and trolley movement)is proposed in this *** on different details and their combinations are conducted on a container terminal case *** to the simulation results,the accuracy of the trajectory prediction can be improved by 20%.The proposed trajectory prediction approach is helpful for building a digital twin of RTcSs and enhancing crane scheduling.

关键词： twin-crane systems trajectory prediction acceleration velocity interference

碱-酶水解结合分散式固相萃取提高大豆异黄酮活性总量测定的准确性

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分析测试学报 2025年第1期44卷 106-115页

作者：顾文黎晨曼孙震庞月红冯永巍沈晓芳江南大学食品科学与资源挖掘全国重点实验室江苏无锡214122 无锡市食品安全检验检测中心国家市场监管技术创新中心(特殊食品)江苏无锡214142

通过碱性甲醇溶液超声提取,结合杏仁来源β-葡萄糖苷酶水解及聚酰胺分散式固相萃取步骤,建立了超高效液相色谱测定大豆异黄酮活性总量的方法。样品中的丙二酰及乙酰类大豆异黄酮苷在碱性条件下水解成基本型苷,并在β-葡萄糖苷酶的作用... 详细信息

通过碱性甲醇溶液超声提取,结合杏仁来源β-葡萄糖苷酶水解及聚酰胺分散式固相萃取步骤,建立了超高效液相色谱测定大豆异黄酮活性总量的方法。样品中的丙二酰及乙酰类大豆异黄酮苷在碱性条件下水解成基本型苷,并在β-葡萄糖苷酶的作用下进一步脱去糖基转变为相应的苷元。样品中12种不同形式的大豆异黄酮转变为仅含3种大豆异黄酮苷元(大豆苷元、黄豆黄素、染料木素)后,以聚酰胺粉进行分散式固相萃取,c_(18)反相色谱柱(2.1 mm i.d.×50 mm,1.8μm)分离。结果显示,大豆苷元、黄豆黄素及染料木素在3 min内实现基线分离,3种异黄酮苷元的标准曲线相关系数(r^(2))均大于0.999,总异黄酮的回收率为94.3%~102%,相对标准偏差(RSD,n=6)小于5.0%,具有较高的准确度和精密度。该方法通过检测样品中的全部苷元来计算异黄酮总量,有助于降低异黄酮检测在分离度、准确度及检测成本上带来的挑战;考虑异黄酮在体内的转化吸收机制和生理效应,以苷元总量计能更科学地反映实际的异黄酮活性水平,避免因通过苷和苷元的简单加和而造成对异黄酮含量水平的高估。

关键词：大豆异黄酮聚酰胺(PA) 分散式固相萃取(d-SPE) β-葡萄糖苷酶超高效液相色谱(UPLc)

Dual microenvironmental parameter-responsive lysosome-targeting carbon dots for the high contrast discrimination of a broad spectrum of cancer cells

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chinese chemical Letters 2022年第12期33卷 5051-5055页

作者： yue Xiao Xiaohui Yin Pengjuan sun Yuanqiang sun Lingbo Qu Zhaohui Li college of chemistry Institute of Analytical Chemistry for Life ScienceHenan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical ApplicationsZhengzhou UniversityZhengzhou 450001China

The development of new carbon dots(cDs)for fluorescence-based cancer diagnosis has recently attracted extensive *** methods based on ligand-receptor fluorescence suffer from the heterogeneity of receptor *** in the microenvironments of cancer cells provide opportunities for accurate and broad-spectrum cancer *** lysosomes in cancer cells have lower polarity and higher viscosity than normal *** on these two key microenvironmental parameters,dual-responsive cDs with inherent lysosome-targeting ability were synthesized via one-step hydrothermal *** cDs exhibit many advantageous properties including facile synthesis,good water solubility,pH-independent emission,excellent photostability,good biocompatibility,and wash-free imaging *** cDs were successfully employed in the fluorescence-based discrimination of a broad spectrum of cancer cells from normal cells with high *** cDs are promising candidates for use in the field of cancer diagnosis.

关键词： carbon dots Multiple microenvironmental parameters Lysosome-targeting High contrast imaging cancer diagnosis

Differences between journal and conference in computer science:a bibliometric view based on Bayesian network

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Journal of Data and Information Science 2023年第3期8卷 47-60页

作者： Mingyue sun Mingliang yue Tingcan Ma Wuhan Library Chinese Academy of SciencesChina Department of Information Resources Management University of Chinese Academy of SciencesChina

Purpose:This paper aims to investigate the differences between conference papers and journal papers in the field of computer science based on Bayesian ***/methodology/approach:This paper investigated the differences between conference papers and journal papers in the field of computer science based on Bayesian network,a knowledge-representative framework that can model relationships among all variables in the *** defined the variables required for Bayesian networks modeling,calculated the values of each variable based Aminer dataset(a literature data set in the field of computer science),learned the Bayesian network and derived some findings based on network ***:The study found that conferences are more attractive to senior scholars,the academic impact of conference papers is slightly higher than journal papers,and it is uncertain whether conference papers are more innovative than journal *** limitations:The study was limited to the field of computer science and employed Aminer dataset as the *** studies involving more diverse datasets and different fields could provide a more complete picture of the *** implications:By demonstrating that Bayesian networks can effectively analyze issues in Scientometrics,the study offers valuable insights that may enhance researchers’understanding of the differences between journal and conference in computer ***/value:Academic conferences play a crucial role in facilitating scholarly exchange and knowledge dissemination within the field of computer *** studies have been conducted to examine the distinctions between conference papers and journal papers in terms of various factors,such as authors,citations,h-index and *** studies were carried out from different(independent)perspectives,lacking a systematic examination of the connections and interactions between multiple *** paper supplements this deficiency based on

关键词： conference papers Journal papers computer science Bibliometrics Bayesian network

combined inhibition of HDAc and DNMT1 induces p85α/MEKmediated cell cycle arrest by dual target inhibitor 208 in U937 cells

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chinese chemical Letters 2019年第6期30卷 1233-1236页

作者： yue Ren Qinsheng sun Zigao Yuan Yuyang Jiang Department of chemistry Tsinghua University Beijing 100084 China State Key Laboratory of chemical Oncogenomics Key Laboratory of Chemical Biology the Graduate School at Shenzhen Tsinghua University Shenzhen 518055 China National & Local United Engineering Lab for Personalized Anti-tumor Drugs Shenzhen Kivita Innovative Drug Discovery Institute the Graduate School at Shenzhen Tsinghua University Shenzhen 518055 China School of Life Science Tsinghua University Beijing 100084 China School of Pharmaceutical Sciences Tsinghua University Beijing 100084 China

Multiple histone deacetylase inhibitors (HDAci) and DNA methyltransferase inhibitors (DNMTi) have been developed for cancer therapy. However, the research on their mechanisms of action is not sophisticated enough. In this study, we reported a dual HDAc and DNMT inhibitor 208 and found it induced G1 cell cycle arrest and apoptosis in U937 cells. Proteome and bioinformatic analyses revealed that the combined inhibition of DNMT1 and HDAc by 208 affected the expression of a series of proteins involved in many biological processes. We observed that several proteins associated with G1 cell cycle arrest and apoptosis were down regulated after 208 treatment, including p85α, MEK, and cDK4, suggesting that 208 induces cell cycle arrest and apoptosis through the p85α/MEK-mediated pathway in U937 cells. Moreover, biological function analysis showed that the combined epigenetic inhibition influenced various processes, including the synthesis and processing of RNA, translation, protein transport, and DNA repair. These findings provide novel insight into the potential mechanisms of multifunctional epigenetic inhibitors, which supports their further improvement and development.

关键词： Proteomics Epigenetic inhibitor HDAc DNMT1 cell cycle arrest

Thermoelectric properties of metal-(Z)-1,2-dihydroselenoethene-1,2-dithiol coordination polymers

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Science Bulletin 2018年第13期63卷 814-816页

作者： Yutao cui Jie Yan yue sun Ye Zou Yimeng sun Wei Xu Daoben Zhu Beijing National Laboratory for Molecular Sciences Key Laboratory of Organic SolidsInstitute of ChemistryChinese Academy of SciencesBeijing 100190China University of chinese Academy of Sciences Beijing 100049China

Thermoelectric(TE)materials can realize mutual energy conversion between heat and electricity and are applied broadly in energy harvesting,local cooling or heating,and thermal sensing[1].TE devices are crucial to solve the global energy crisis with renewable energy ***,most of the research works are focused on inorganic TE materials because of their superior *** recently,due to the growing demands

关键词：热电聚合物性质金属协作设备供应精力材料