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| 1 | Digital Twins and Cyber Physical Systems toward Smart Manufacturing and Industry 4.0:Correlation and Comparison显示文摘State-of-the-art technologies such as the Internet of Things(IoT),cloud computing(CC),big data analytics(BDA),and artificial intelligence(AI)have greatly stimulated the development of smart manufacturing.An important prerequisite for smart manufacturing is cyber-physical integration,which is increasingly being embraced by manufacturers.As the preferred means of such integration,cyber-physical systems(CPS)and digital twins(DTs)have gained extensive attention from researchers and practitioners in industry.With feedback loops in which physical processes affect cyber parts and vice versa,CPS and DTs can endow manufacturing systems with greater efficiency,resilience,and intelligence.CPS and DTs share the same essential concepts of an intensive cyber-physical connection,real-time interaction,organization integration,and in-depth collaboration.However,CPS and DTs are not identical from many perspectives,including their origin,development,engineering practices,cyber-physical mapping,and core elements.In order to highlight the differences and correlation between them,this paper reviews and analyzes CPS and DTs from multiple perspectives. | Fei Tao Qinglin Qi Lihui Wang A.Y.C.Nee | 2019 | Engineering2019，5，4： | 84 |
| 2 | 西藏色季拉山林线冷杉种群结构与动态显示文摘急尖长苞冷杉(Abies georgei var.smithii)是西藏东南部地区高山林线森林群落的主要建群树种,主要分布在色季拉山海拔3600~4400m区域,并成为阴坡高山林线的优势树种。通过对色季拉山林线群落交错区域的定位调查,分析了急尖长苞冷杉的个体生长、种群结构与动态以及林线特征。分析结果表明:(1)西藏色季拉山海拔4320m处为森林郁闭上限,该区域存在两种类型的高山林线,阳坡为渐变型林线,林线树种为方枝柏(Sabina saltuaria);阴坡为急变型林线,林线树种为急尖长苞冷杉。阳坡与阴坡林线分布海拔上限分别为4570m和4390m,阳坡高于阴坡180m;阳坡与阴坡林线群落交错区垂直宽度分别为250m和70m,阳坡比阴坡宽180m。(2)阴坡海拔3700~3800m属急尖长苞冷杉分布的最适范围,种群径级结构表现为典型的反'J'型,种群密度约380株/hm2;种群年龄结构表现为'金字塔'型,属于扩展型种群。(3)静态生命表和种群存活曲线反映了急尖长苞冷杉种群在形成初期的20a和生长发育的60~160a分别经历了强烈的环境筛选和竞争自疏,以及后期与环境变化相关的死亡波动,200a左右为急尖长苞冷杉的生理寿命,种群后期基本稳定,400a左右为极限寿命。 | 任青山 杨小林 崔国发 王景升 黄瑜 WEI Xiao hua LI Qinglin | 2007 | 生态学报2007，27，7： | 70 |
| 3 | An equation of entransy transfer and its application显示文摘Entransy is a physical quantity describing heat transfer ability, and heat transfer is accompanied by entransy transfer. Thermal energy is conserved in its transfer process, while entransy is dissipated because of the irreversibility of its transfer process. As a result, entransy transfer must have its rules which are different from those of thermal energy transfer. Based on the definition of entransy, an entransy transfer equation is derived, which describes the entransy transfer processes of a multi-component viscous fluid subject to heat transfer by conduction and convection, mass diffusion and chemical reactions. The expressions of entransy flux and entransy dissipation are obtained simultaneously, and their physical mechanism is clarified. And further, the theory and method of optimizing heat transfer applying the entransy transfer equation to the steady-state convection heat transfer process are expounded. The minimum thermal resistance principle and the entransy dissipation extremum principle are obtained by applying the steady-state entransy transfer equation to the steady-state convection heat transfer process. The cases of the single-component steady-state convection heat transfer and the steady-state heat conduction show the application of the theory and method. | WANG SongPing CHEN QingLin ZHANG BingJian | 2009 | Chinese Science Bulletin2009，54，19： | 23 |
| 4 | Preparation and luminescence characteristics of Sr_3SiO_5:Eu^(2+) phosphor for white LED显示文摘The Sr3SiO5:Eu2+ phosphor was synthesized by high temperature solid-state reaction. The emission spectrum of Sr3SiO5:Eu2+ shows two bands centered at 487 and 575 nm, which well agree with the theoretic values of emission spectrum. The excitation spectrum for 575 nm emission center has several excitation bands at 365, 418, 458 and 473 nm. And the results show that the emission spectrum of Sr3SiO5:Eu2+ is influenced by the Eu2+ concentration. The relative emission spectra of the white-emitting InGaN-based YAG:Ce3+ LED and Sr3SiO5:Eu2+ LED were investigated. The results show that the color development of InGaN-based Sr3SiO5:Eu2+ is better than that of InGaN-based YAG:Ce3+, and the CIE chromaticity of InGaN-based Sr3SiO5:Eu2+ is (x=0.348, y=0.326). | LI PanLai YANG ZhiPing WANG ZhiJun GUO QingLin LI Xu | 2008 | Chinese Science Bulletin2008，53，7： | 16 |
| 5 | Diagnosis of brain death: confirmatory tests after clinical test显示文摘 | Su Yingying Yang Qinglin Liu Gang Zhang Yan Ye Hong Gao Daiquan Zhang Yunzhou Chen Weibi | 2014 | Chinese Medical Journal2014，，7： | 16 |
| 6 | Peroxisome-proliferator-activated receptors regulate redox signaling in the cardiovascular system显示文摘Peroxisome-proliferator-activated receptors(PPARs) comprise three subtypes(PPARα,δ and γ) to form a nuclear receptor superfamily.PPARs act as key transcriptional regulators of lipid metabolism,mitochondrial biogenesis,and anti-oxidant defense.While their roles in regulating lipid metabolism have been well established,the role of PPARs in regulating redox activity remains incompletely understood.Since redox activity is an integral part of oxidative metabolism,it is not surprising that changes in PPAR signaling in a specific cell or tissue will lead to alteration of redox state.The effects of PPAR signaling are directly related to PPAR expression,protein activities and PPAR interactions with their coregulators.The three subtypes of PPARs regulate cellular lipid and energy metabolism in most tissues in the body with overlapping and preferential effects on different metabolic steps depending on a specific tissue.Adding to the complexity,specific ligands of each PPAR subtype may also display different potencies and specificities of their role on regulating the redox pathways.Moreover,the intensity and extension of redoxregulation by each PPAR subtype are varied depending on different tissues and cell types.Both beneficial and adverse effects of PPAR ligands against cardiovascular disorders have been extensively studied by many groups.The purpose of the review is to summarize the effects of each PPAR on regulating redox and the underlying mechanisms,as well as to discuss the implications in the cardiovascular system. | Teayoun Kim Qinglin Yang | 2013 | World Journal of Cardiology2013，5，6： | 14 |
| 7 | Occurrence and distribution of antibiotic resistance genes in the sediments of the East China Sea bays显示文摘The coastal area of the East China Sea has experienced rapid urbanization and industrialization in China since 1980 s, resulting in severe pollution of its environments.Antibiotic resistance genes(ARGs) are regarded as a kind of emerging pollutant with potential high risk. The sediment samples were collected from Hangzhou Bay(HB),Xiangshan Bay(XB), and Taizhou Bay(TB) to investigate the spatial occurrence and distribution of 27 ARGs and class I integron–integrase gene(intI1) in the coastal area of the East China Sea. The PCR results showed the frequent presence of 11 ARGs and intI1 in the sediments of the three bays. The qPCR results further showed that sulfonamide resistance was the most prevalent ARG type and antibiotic target replacement and protection were the most important resistance mechanisms in the sediments. Regarding the subtype of ARGs, sulI, tetW, and dfrA13 were the most abundant ARGs, in which sulI was higher in TB(based on both the absolute and relative abundances) and dfrA13 was higher in HB(based on the relative abundances). The network analysis revealed that intI1 had significant correlations with tetC, sulI, sulII, and blaPSE-1. Oil was the key connected factor, which had positive connections with sulI, sulII, and blaPSE-1. In addition, the joint effect of heavy metals and nutrients & organic pollutants might be crucial for the fate of ARGs in the coastal sediments. | Jiayu Chen Zhiguo Su Tianjiao Dai Bei Huang Qinglin Mu Yongming Zhang Donghui Wen | 2019 | Journal of Environmental Sciences2019，31，7： | 13 |
| 8 | Effects of minor Sc on the microstructure and mechanical properties of Al-Zn-Mg-Cu-Zr based alloys显示文摘Five kinds of Al-Zn-Mg-Cu-Zr based alloys with different Sc additions were prepared by ingot metallurgy. The effects of minor Sc on the microstructure and mechanical properties of Al-Zn-Mg-Cu-Zr based alloys were investigated using tensile tests, optical microscopy (OM), and transmission electron microscopy (TEM). The results show that the ultimate tensile strength and yield strength are improved by 94 and 110 MPa, respectively, and the elongation to failure remains at a reasonable extent (11.1%) in the Al-Zn-Mg-Cu-Zr based alloy with 0.21 wt.% Sc addition after solution heat treatment at 475°C for 40 min and then aged at 120°C for 24 h. The addition of minor Sc induces the formation of Al3(Sc,Zr) particles, which are highly effective in refining the cast microstructures, retarding recrystallization, and pinning dislocations. The increment of strength is attributed mainly to fine grain strengthening, precipitation strengthening of Al3(Sc,Zr) particles, and substructure strengthening. | LI Wenbin PAN Qinglin ZOU Liang LIANG Wenjie HE Yunbin LIU Junsheng | 2009 | Rare Metals2009，28，1： | 12 |
| 9 | Simulation of underexpanded supersonic jet flows with chemical reactions显示文摘To achieve a detailed understanding of underexpanded supersonic jet structures influenced by afterburning and other flow conditions, the underexpanded turbulent supersonic jet with and without combustions are investigated by computational fluid dynamics(CFD) method.A program based on a total variation diminishing(TVD) methodology capable of predicting complex shocks is created to solve the axisymmetric expanded Navier–Stokes equations containing transport equations of species. The finite-rate ratio model is employed to handle species sources in chemical reactions. CFD solutions indicate that the structure of underexpanded jet is typically influenced by the pressure ratio and afterburning. The shock reflection distance and maximum value of Mach number in the first shock cell increase with pressure ratio. Chemical reactions for the rocket exhaust mostly exist in the mixing layer of supersonic jet flows. This tends to reduce the intensity of shocks existing in the jet, responding to the variation of thermal parameters. | Fu Debin Yu Yong Niu Qinglin | 2014 | Chinese Journal of Aeronautics2014，27，3： | 12 |
| 10 | A general theoretical principle for single-phase convection heat transfer enhancement显示文摘The main methods of single-phase convection heat transfer enhancement are analyzed in this paper, and the unity of contradiction between heat transfer enhancement and energy consumption(or exergy destruction)is expounded.The thermodynamic relationship between heat(or exergy)transfer efficiency and energy consumption(or exergy destruction)as well as driving forces is established,and a general theoretical principle for single-phase convection heat transfer enhancement is further obtained. The principle shows that temperature gradient field distribution and velocity field distribution constrain each other,and that the optimum heat transfer efficiency can be obtained when they are synergetic.If the level of the synergy of temperature gradient field distribution with velocity field distribution is determined,the relative uniform temperature gradient is required,and vice versa.The principle also shows the relationship of relative temperature gradient with specific heat and coefficient of heat conductivity.The deduced results can be used as a theoretical guidance for single-phase convection heat transfer enhancement and optimum design of heat exchangers. | WANG SongPing CHEN QingLin ZHANG BingJian HUA Ben | 2009 | Science China(Technological Sciences)2009，52，12： | 12 |
| 11 | Dispersion stabilization of antimony-doped tin oxide(ATO)nanoparticles used for energy-efficient glass coating显示文摘Nano-antimony-doped tin oxide(ATO) was synthesized using the sol-gel method.A colloidal dispersion of ATO nanoparticles in distilled water was achieved using a milling process in which different dispersants were studied.In this paper,different factors that affect the stability of ATO nanoparticles were discussed,such as zeta potential,dispersant,and pH value.Sodium polyphosphate was a suitable dispersant for stabilizing ATO nanoparticles in distilled water.A stable dispersion of ATO nanoparticles in distilled water was prepared.The stable dispersion of ATO nanoparticles was used to prepare nano-thermal insulation glass paint to block near-infrared rays of sunlight. | Ning Li Qinglin Meng Nan Zhang | 2014 | Particuology2014，12，6： | 11 |
| 12 | Structure of the receptor-activated human TRPC6 and TRPC3 ion channels显示文摘TRPC6 和 TRPC3 是属于正规短暂受体潜力(TRPC ) 的家庭的激活受体的 nonselective 阳离子隧道隧道。他们被 diacylglycerol 激活,一个类脂化合物秒送信人。TRPC6 和 TRPC3 涉及许多生理的过程并且在人的基因疾病含有。这里我们在场在有最新识别的高亲密关系的禁止者 BTDM 的建筑群的人的 TRPC6 homotetramer 的结构由单个粒子的 cryo 电子显微镜学解决了到 3.8?分辨率。我们也在 4.4 点介绍人的 TRPC3 的结构吗?分辨率。这些结构显示出塑造钟的 cytosolic 层在保持 transmembrane 层的二层的体系结构。包括 N 终端 ankyrin 重复和 C 终端卷卷, cytosolic 领域的广泛的内部子单元的相互作用贡献 tetramer 集会。高亲密关系的禁止者 BTDM 在 S5-S6 毛孔领域和电压之间挤像传感器的领域禁止隧道开。我们的结构揭开 TRPC 隧道的分子的建筑学并且为理解这些隧道的机制提供一个结构的基础。 | Qinglin Tang Wenjun Guo Li Zheng Jing-Xiang Wu Meng Liu Xindi Zhou Xiaolin Zhang Lei Chen | 2018 | Cell Research2018，28，7： | 10 |
| 13 | Cesium lead halide perovskite triangular nanorods as high-gain medium and effective cavities for multiphoton- pumped lasing显示文摘基于铯铅卤化物 perovskite, nanostructures 在综合 photonics 为非线性的光学和实际频率 upconversion 设备正在答应的高效的抽 multiphoton 的激光。然而,如此的激光的表演高度依赖于材料和洞的质量,它使他们的制造挑战性。此处,我们表明经由蒸汽方法制作的三角形的 nanorods 能作为抽 multiphoton 的激光的获得媒介和有效的洞服务的那铯铅卤化物 perovskite。我们观察了在刺激的放射激光的模式蓝移动在增加的刺激的 fluence 依赖的放射激光系列驱动充满效果的乐队引起的移动,它与 Burstein 苔藓的动力学适合很好。而且,在 CsPbBr 3 nanorods 放射激光的有效 multiphoton 能在一个宽刺激波长范围(700-1,400 nm ) 被认识到。放射激光的 multiphoton 的动力学被解决时间的光致发光光谱学调查,它显示电子洞血浆负责抽 multiphoton 的放射激光。这个工作能在放射激光的频率 upconversion 为铯铅卤化物 perovskite nanostructures 导致新机会和应用设备并且光互连系统。 | Xiaoxia Wang Hong Zhou Shuangping Yuan Weihao Zheng Ying Jiang Xiujuan Zhuang Hongjun Liu Qinglin Zhang Xiaoli Zhu Xiao Wang Anlian Pan | 2017 | Nano Research2017，10，10： | 10 |
| 14 | Infrared radiation characteristics of a hypersonic vehicle under time-varying angles of attack显示文摘Hypersonic vehicles emit strong infrared(IR) radiation signatures that can be treated as a detecting source for object identification and routine diagnosis. This paper is aimed at examining the intrinsic radiation characteristics of a Boost-Glide Vehicle(BGV) under the condition of various Angles of Attack(AOAs). A two-temperature model considering the thermal and chemical nonequilibrium effects is coupled with Navier-Stokes equations solved by the finite volume technique.A gas–solid conjunction heat transfer model is also added into the fluid solver to simulate the surface temperature of the vehicle. The radiative transfer equation is solved with Line of Sight(LOS)algorithm. The computational results for a Hypersonic Technology Vehicle-2(HTV-2) type vehicle show that radiances of the vehicle are strongly dependent on the surface temperature. The presence of AOA results in the significant difference of the surface temperature. Infrared radiation characteristics are also changed in intensity and spectral band due to the AOA. Simulations are performed with two time-varying AOAs. Transient results indicate that the variation of AOA does have a great effect on the infrared radiance and is closely related to observation angle, spectral band, angle size,angular velocity and time history. | Qinglin NIU Zhichao YUAN Biao CHEN Shikui DONG | 2019 | Chinese Journal of Aeronautics2019，32，4： | 10 |
| 15 | The unconformity in Miocene sequence of western Qaidam Basin and its tectonic significance显示文摘An angular unconformity has been identified between the upper and the lower Youshashan Formation based on the study of the regional geology, drillhole, and geophysical data of the Altyn Tagh Mountain foreland, western Qaidam Basin. The distribution of the unconformity, the contacts between the upper and the lower Youshashan Formation, and its relation to the characteristics of the paleo-structure belts suggest a close relationship between the unconformities in the southern flank of the Altyn Tagh Mountain in the west of the Qaidam Basin and the activity of the Altyn Tagh Fault. It was the same time when the Atlyn Tagh Fault Zone was transformed from regional uplifting to rapid-strike-slipping movement during the Miocene, resulting in the cessation of the regional uplift and subsequent massive regional transgression during the deposition of the upper Youshashan Formation, which unconformably overlies (onlaps) the underlying strata of different ages. | WANG Liang XIAO AnCheng GONG QingLin LIU Dong WU Lei ZHOU SuPing SHEN ZhongYan LOU QianQian SUN XiaoWen | 2010 | Science China Earth Sciences2010，53，8： | 10 |
| 16 | IR radiation characteristics of rocket exhaust plumes under varying motor operating conditions显示文摘The infrared(IR) irradiance signature from rocket motor exhaust plumes is closely related to motor type,propellant composition,burn time,rocket geometry,chamber parameters and flight conditions.In this paper,an infrared signature analysis tool(IRSAT) was developed to understand the spectral characteristics of exhaust plumes in detail.Through a finite volume technique,flow field properties were obtained through the solution of axisymmetric Navier-Stokes equations with the Reynolds-averaged approach.A refined 13-species,30-reaction chemistry scheme was used for combustion effects and a k-e-Rtturbulence model for entrainment effects.Using flowfield properties as input data,the spectrum was integrated with a line of sight(LOS) method based on a single line group(SLG) model with Curtis-Godson approximation.The model correctly predicted spectral distribution in the wavelengths of 1.50–5.50 lm and had good agreement for its location with imaging spectrometer data.The IRSAT was then applied to discuss the effects of three operating conditions on IR signatures:(a) afterburning;(b) chamber pressure from ignition to cutoff;and(c) minor changes in the ratio of hydroxyl-terminated polybutadiene(HTPB) binder to ammonium perchlorate(AP) oxidizer in propellant.Results show that afterburning effects can increase the size and shape of radiance images with enhancement of radiation intensity up to 40%.Also,the total IR irradiance in different bands can be characterized by a non-dimensional chamber pressure trace in which the maximum discrepancy is less than 13% during ignition and engine cutoff.An increase of chamber pressure can lead to more distinct diamonds,whose distance intervals are extended,and the position of the first diamond moving backwards.In addition,an increase in HTPB/AP causes a significant jump in spectral intensity.The incremental rates of radiance intensity integrated in each band are linear with the increase of HTPB,and the growth rates of radiance intensities in some bands reach up to 50% as HTPB weight increases by 3%. | Qinglin NIU Zhihong HE Shikui DONG | 2017 | Chinese Journal of Aeronautics2017，30，3： | 10 |
| 17 | “Aha!” effects in a guessing Chinese logogriph task:An event-related potential study显示文摘In the present study,high-density event-related potentials(ERPs)were recorded to examine the elec-trophysiologic correlates of 'Aha!' effects in a guessing Chinese logogriph task by using a two-stage model for learning-testing.Results showed that:Firstly Successful Guessing elicited a more negative ERP deflection(N350)than Recognition did in the time window from 300―350 ms after onset of the stimuli.A voltage map of the difference wave(Successful Guessing minus Recognition)showed strong activity at the front-central region.Dipole analysis localized the generator of the N350 in the vicinity of the posterior cingulate cortex(PCC)and the inferior frontal gyrus.Secondly,a greater late positive component(LPC)in Successful Guessing than Recognition was found between 600 and 700 ms post-stimulus.Dipole analysis localized the generator of LPC in the right parahippocampal gyrus. | QIU Jiang ZHANG QingLin | 2008 | Chinese Science Bulletin2008，53，3： | 10 |
| 18 | Water in the Mogao Grottoes,China:where it comes from and how it is driven显示文摘The Dunhuang Mogao Grottoes in China was designated as a world heritage site by UNESCO in 1987 and is famous for its cultural relics. Water is the most active factor that harms the relics in the caves as it damages the grotto murals and painted sculptures. Thus, determining the water sources and driving forces of water movement is a key issue for protecting these cultural relics. These issues have troubled relics protectors for a long time. In this study, the authors chose a representative cave in the Mogao Grottoes and, by completely sealing the cave to make a closed system, measured the water vapor from the surrounding rock. This was accomplished by installing a condensation–dehumidification temperature–humidity control system for the collection of water vapor. The results show that there is continuous evaporation from the deep surrounding rock into the cave. The daily evaporation capacity is determined to be 1.02 g/(d?m2). The water sources and driving forces of water movement were further analyzed according to the character of the water evaporation and by monitoring the temperature and humidity of the surrounding rock. It was found that the water vapor in the cave derives from phreatic water. Moreover, the yearly fluctuation of temperature in the surrounding rock and geothermal forces are the basic powers responsible for driving phreatic evaporation. Under the action of the yearly temperature fluctuations, decomposition and combination of bound water acts as a 'pump' that drives phreatic water migration and evaporation. When the temperature rises, bound water decomposes and evaporates; and when it falls, the rock absorbs moisture. This causes the phreatic water to move from deep regions to shallow ones. Determining the source and dynamic foundation of the water provides a firm scientific basis for protecting the valuable cultural relics in the caves. | HongShou LI WanFu WANG HongTao ZHAN Fei QIU QingLin GUO GuoBin ZHANG | 2015 | Journal of Arid Land2015，7，1： | 10 |
| 19 | The Occurrence of Oleananes in the Beibuwan Basin and Its Application to the Study of Maturity and Oil-Source Rock Correlation显示文摘摘要: oleanane 参数,即,在 Beibuwan 盆的二沉积的列的 OP (oleananes/( oleananes+C30hopanes )),华南海,能被用来限定油产生窗户的顶,与在井 M1 的 0.53 的 Ro (/%)并且 0.55 在井 H1/Hd1/Hd2 ,分别地。与 vitrinite 反射(Ro/%) 作比较, OP 展示一个动态范围和罐头更精确显示油产生窗户。由使用 OP 和另外的 geochemical 索引,油来源关联也被进行。它建议在井 M1 和 M2 的油在 situ 从来源岩石被导出。在 Huachang 的 mudstone 高举不是为在这个区域的油的主要来源岩石。OP 也是在一些第三级的湖的盆的一个有用油来源关联参数。 | LI Meijun WANG Tieguan LIU Ju ZHANG Meizhu LU Hong MA Qinglin GAO Lihui | 2008 | Acta Geologica Sinica(English Edition)2008，82，3： | 9 |
| 20 | Effects of Double Harvesting on Heavy Metal Uptake by Six Forage Species and the Potential for Phytoextraction in Field显示文摘The pollution of soils by heavy metals has dramatically increased in recent decades. Phytoextraction is a technology that extracts elements from polluted soils using hyperaccumulator plants. The selection of appropriate plant materials is an important factor for successful phytoextraction in field. A field study was conducted to compare the efficiency of six high-biomass forage species in their phytoextraction of heavy metals(Cd, Pb, and Zn) from contaminated soil under two harvesting strategies(double harvesting or single harvesting). Among the tested plants, amaranth accumulated the greatest amounts of Cd and Zn, whereas Rumex K^(-1) had the highest amount of Pb in the shoot under both double and single harvesting. Furthermore, double harvesting significantly increased the shoot biomass of amaranth, sweet sorghum and sudangrass and resulted in higher heavy metal contents in the shoot. Under double harvesting, the total amounts of extracted Cd, Pb and Zn(i.e., in the first plus second crops) for amaranth were 945, 2 650 and 12 400 g ha^(-1), respectively, the highest recorded among the six plant species. The present results indicate that amaranth has great potential for the phytoextraction of Cd from contaminated soils. In addition, the double harvesting method is likely to increase phytoextraction efficiency in practice. | LI Ningyu GUO Bin LI Hua FU Qinglin FENG Renwei DING Yongzhen | 2016 | Pedosphere2016，26，5： | 8 |
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