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钢箱梁临时支架安全性分析

施工技术 2010年第S2期39卷 250-252页

作者：李娜周小勇吕露苏鹏华中科技大学文华学院湖北武汉430074 中国地质大学(武汉) 湖北武汉430074

为了保证某立交快速通道工程钢箱梁临时支架的安全性,采用空间有限元分析法,系统的研究并分析了临时支架的安全性问题,结合实例拟定了2种方案,通过分析计算,均能达到相应的安全性能要求。

关键词：钢箱梁临时支架有限元法

Realizing efficient ultraviolet emission from Er3+-sensitized upconversion nanoparticles under 1550 nm excitation

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Science Bulletin 2019年第18期64卷 1295-1297页

作者： xiaoyong Huang Institute for Advanced Study Shenzhen University College of Physics and Optoelectronics Taiyuan University of Technology

lanthanide-doped upconversion nanoparticles,which enable the conversion of incident low-energy near-infrared(NIR)photons into higher-energy emissions(including NIR,visible,and UV light),have attracted considerable interests because of their promising applications in many fields,such as solar cells,biological imaging,three-dimensional displays,sensors,anti-counterfeiting and therapeutics[1,2].

关键词： excitation ultraviolet lanthanide

New red phosphors enable white lEDs to show both high luminous efficacy and color rendering index

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Science Bulletin 2019年第13期64卷 879-880页

作者： xiaoyong Huang Institute for Advanced Study Shenzhen University College of Physics and Optoelectronics Taiyuan University of Technology

Today, energy saving and emission reduction are two big global issues. Power artificial lighting currently accounts for about 20% of the total global electricity consumption [1]. Solid-state lighting based on light-emitting diodes (lEDs) is bringing about a revolution in energy-efficient lighting, and the lighting industry is transformed into a rapidly growing business sector [2,3]. The solid-state lighting technology is basically based on phosphor- converted white lEDs (pc-lEDs), which are commonly fabricated by using the combination of InGaN blue-emitting lED chips and luminescent materials as color converters [4,5], luminescent materials play a critical role in fabricating high-performance lED devices, which is strongly linked to lED's luminous efficacy, stability, color rendering index (CRI), correlated color temperature (CCT) and operation lifetime [6-8]. Therefore, the discovery of more efficient desirable phosphor materials is essential.

关键词： luminous efficacy rendering index red phosphors

Cyan phosphors for full-visible-spectrum lighting: shining new light on high-CRI white pc-lEDs

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Science Bulletin 2019年第22期64卷 1649-1651页

作者： xiaoyong Huang Institute for Advanced Study Shenzhen University College of Physics and Optoelectronics Taiyuan University of Technology

Nowadays,solid-state lighting sources based on white lightemitting diodes(lEDs)are extensively replacing the traditional illumination devices(incandescent and fluorescent lamps)due to their unique and appealing properties,such as high efficiency,high brightness,long working lifetime,small size,fast response time and eco-friendliness[1-4].Because of this,white lEDs have permeated deeply into many important sectors,including indoor and outdoor lightings,signals,displays and therapeutic *** order to make sure that white lEDs can provide artificial lighting source with good color quality and high vision performance,there are several important figures of merit that are used to characterize white lEDs:color rendering index(CRI),correlated color temperature,luminous efficacy of radiation and luminous efficacy.

关键词： lighting white luminous

Design of a continuous fiber trajectory for 4D printing of thermally stimulated composite structures

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Science China(Technological Sciences) 2020年第4期63卷 571-577页

作者： TIAN xiaoyong WANG QingRui lI DiChen State Key laboratory for Manufacturing Systems Engineering Xi’an Jiaotong UniversityXi’an 710049China

Deformation control of 4D printing has always been ***,a design method for the fiber trajectory for 4D printing composite structures with embedded continuous fibers is reported,wherein the designed composite structures can be deformed into many types of deployable *** of the bilayer composite structure was driven by differences in the coefficients of thermal expansion(CTEs)between the resin substrate and embedded *** bending curvature and direction of the composite structure is controlled by adjusting fiber *** to differential geometry theory,the relationship between the angle of intersecting fiber bundles and curvature of the final shape was ***,arbitrary deployable surfaces,including conical,cylindrical,and tangent surfaces,can be *** design and additive manufacturing strategy allow precise control of the deforming process,greatly extending the potential applications of 4D printing.

关键词： 4D printing continuous fibers composite structures fiber trajectory

Two-Dimensional Reconstruction of Heat Transfer in a Flat Flame Furnace through Computer-Based Tomography and Tunable-Diode-laser Absorption Spectroscopy

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Fluid Dynamics & Materials Processing 2020年第5期16卷 857-869页

作者： xiaoyong Wang Huainan Union University Huainan232038China

To explore the inherent characteristics of combustion-induced heat transfer in a flat flame furnace,a sophisticated hybrid method is introduced by combining a computer-based tomography(CT)-algebraic iterative algorithm and Tunable Diode laser Absorption Spectroscopy(TDlAS).This technique is used to analyze the distribution of vapor concentration and furnace *** is shown that by using this strategy a variety of details can be obtained,which would otherwise be out of reach.

关键词： Computed tomography algorithm flame furnace TDlAS temperature boundary

Formation of the adakite-like granitoid complex and porphyry copper-gold deposit in Shaxi from southern Tancheng-lujiang fault belt: A clue to the West Pacific plate subduction

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Chinese Journal Of Geochemistry 2009年第1期28卷 28-43页

作者： YANG xiaoyong CAS Key laboratory of Crust-Mantle Materials and Environments School of Earth ＆ Space Sciences University of Science ＆ Technology of China Hefei 230026 China State Key laboratory of Geological Processes and Mineral Resources China University of Geosciences Wuhan 430074 China

On the basis of the geological and geochemical studies, including chemical analysis of bulk rocks, rare-earth and trace element studies, fluid inclusion, and S and O isotopic analyses, the authors described the geological background of the deposit in detail and presented significant proofs for the conditions of formation of the Shaxi porphyry copper-gold deposit. Compared with other large and supper-large porphyry copper deposits in China and the adjacent Cu-Au mineralized areas, the ore-forming processes and conditions were analyzed; and the possibility of forming large porphyry copper deposits in the Shaxi area was discussed. The present study indicated that the ore-forming fluid and material were mainly of magmatic origin, while meteoric water played a certain role in the ore-forming processes. Interactions between subducting and overriding plates provided a major driving force for the formation of igneous rocks and the deposition of metal elements in East China since Jurassic. Based on the geo- chemical data of the Shaxi intrusive, it is found that the copper (gold) mineralization is closely related to the genesis of adakite-like intrusive in the Shaxi area. This adakite-like intrusive was formed in the subduction environment as a result of the subduction of the West Pacific plate toward the East China continent, where there is a great potentiality to form a large porphyry copper deposit.

关键词：斑岩金成矿物化环境温度

A new cellular automaton model accounting for stochasticity in traffic flow induced by heterogeneity in driving behavior

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Chinese Physics B 2019年第9期28卷 399-409页

作者： xiaoyong Ni Hong Huang Institute of Public Safety Research Department of Engineering PhysicsTsinghua UniversityBeijing 100084China Beijing Key laboratory of City Integrated Emergency Response Science Tsinghua UniversityBeijing 100084China

A new reliable cellular automaon(CA) model designed to account for stochasticity in traffic flow induced by heterogeneity in driving behavior is *** proposed model differs from most existing CA models in that this new model focuses on describing traffic phenomena by coding into its rules the key idea that a vehicle's moving state is directly determined by a driver stepping on the accelerator or on the brake(the vehicle's acceleration).Acceleration obeys a deformed continuous distribution function when considering the heterogeneity in driving behavior and the safe distance, rather than equaling a fixed acceleration value with a probability, as is the rule in many existing CA *** results show that the new proposed model is capable of reproducing empirical findings in real traffic ***, this new model makes it possible to implement in-depth analysis of correlations between a vehicle's state parameters.

关键词： cellular automaton numerical simulations traffic models

U-Pb Ages and Hf Isotope of Zircons from a Carbonatite Dyke in the Bayan Obo Fe-REE Deposit in Inner Mongolia: its Geological Significance

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Acta Geologica Sinica(English Edition) 2019年第6期93卷 1783-1796页

作者： lAI Xiaodong YANG xiaoyong School of Environmental and Chemical Engineering Foshan UniversityFoshanGuangdong 528225China CAS Key laboratory of Crust-Mantle Materials and Environments University of Science and Technology of ChinaHefei 230026China

Detailed studies on U-Pb ages and Hf isotope have been carried out in zircons from a carbonatite dyke associated with the Bayan Obo giant REE-Nb-Fe deposit,northern margin of the North China Craton(NCC),which provide insights into the plate tectonic in *** of small amounts of zircons extracted from a large sample of the Wu carbonatite dyke have yielded two ages of late Archaean and late Paleoproterozoic(with mean 207 Pb/206 Pb ages of 2521±25 Ma and 1921±14 Ma,respectively).Mineral inclusions in the zircon identified by Raman spectroscopy are all silicate minerals,and none of the zircon grains has the extremely high Th/U characteristic of carbonatite,which are consistent with crystallization of the zircon from silicate,and the zircon is suggested to be derived from trapped basement *** isotopes in the zircon from the studied carbonatite are different from grain to grain,suggesting the zircons were not all formed in one single *** ofεHf(t)values are compatible with ancient crustal sources with limited juvenile *** Hf data and their TDM2 values also suggest a juvenile continental growth in Paleoproterozoic during the period of 1940–1957 *** data demonstrate the major crustal growth during the Paleoproterozoic in the northern margin of the NCC,coeval with the assembly of the supercontinent Columbia,and provide insights into the plate tectonic of the NCC in Paleoproterozoic.

关键词： crustal growth zircon U-Pb age Hf isotope Bayan Obo North China Craton