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A New Cockroach Genus of the Family Fuziidae from Northeastern China(Insecta:Blattida)

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Acta Geologica Sinica(English Edition) 2011年第2期85卷 501-506页

作者： GUO Yinxia ren dong College of Life Sciences Capital Normal University Beijing 100048 China

A new genus and two new species of fossil Fuziidae are described and illustrated： Parvifuzia gen. nov., P. marsa sp. nov. and P. brava sp. nov.. Both species were collected from the Middle Jurassic Jiulongshan, Formation of Daohugou, Inner Mongolia of China. In conjunction with Fuzia Vr（s）ansk（y）,Liang et ren, 2009, the present findings allow us to demonstrate that members of the family were morphologically diverse, with body length ranging from medium （17 mm） in Fuzia to small （9.7 mm） in the present genus. Wing venation of F. dadao is complicated, but simple in the present species, and apex of male＇s cerci are sharp and forceps-like in F. dadao, but strongly curved inward and round in the new genus.

关键词： Blattida=Blattaria=Blattodea Fuziidae new genus new species Middle Jurassic China

Current Research on Paleoentomology—A Preface

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Acta Geologica Sinica(English Edition) 2010年第4期84卷 I0001-I0004页

作者： ren dong College of Life Science Capital Normal University Haidian District Beijing 100048 China

Insects, including the phylogenetically basal groups Collembola, Protura, and Diplura are termed the Hexapoda. Hexapods include over one million described species that are more diverse than all other living taxa toget... 详细信息

关键词： species Wilson total ten

Thermodynamics of the System of Massive Dirac Fermions in a Uniform Magnetic Field

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Chinese Physics Letters 2021年第9期38卷 22-29页

作者： ren-Hong Fang ren-Da dong De-Fu Hou Bao-dong Sun Key Laboratory of Particle Physics and Particle Irradiation(MOE) Institute of Frontier and Interdisciplinary ScienceShandong UniversityQingdao 266237China Institute of Particle Physics and Key Laboratory of Quark and Lepton Physics(MOS) Central China Normal UniversityWuhan 430079China

We construct the grand partition function of the system of massive Dirac fermions in a uniform magnetic field from Landau levels,through which all thermodynamic quantities can be *** use of the Abel–Plana formula,these thermodynamic quantities can be expanded as power series with respect to the dimensionless variable𝑏b=2eB/T^(2).The zero-field magnetic susceptibility is expanded at zero mass,and the leading order term is *** also calculate scalar,vector current,axial vector current and energy-momentum tensor of the system through ensemble average *** correction to chiral separation effect is *** massless chiral fermions,our results recover the chiral magnetic effect for right-and left-handed fermions,as well as chiral separation effect.

关键词： chiral Dirac expanded

Effect of dew point on hot-dip galvanizing behavior of a high-manganese TWIP steel for automotive application

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Journal of Iron and Steel Research International 2020年第10期27卷 1200-1211页

作者： Ting-dong ren Wen Shi ren-dong Liu Li Lin Hong-gang Yang Lin Li Babar Shahzad School of Materials Science and Engineering Shanghai UniversityShanghai 200072China Ansteel Group Co. Anshan 114021LiaoningChina Institute of Metal Research Chinese Academy of SciencesShenyang 110016LiaoningChina

The effect of dew points(-50,-l0 and+10℃)on the galvanizing properties of a high-manganese twinning-inducedplasticity(TWIP)steel was *** electron microscopy(SEM),glow discharge optical emission spectrometry(GDOES)and X-ray photoelectron spectroscopy(XPS)were used for microscopic observation and qualitative analysis of the interfacial layer between the steel surface and the zinc layer after hot-dip *** analysis results show thatthree diffcrent morphologies of metallic oxides are formed on the interfacial layer under the different dew *** results show that Al is present in the molten zinc,reacting with Fe on the steel surface to form Fe2Al5,which can increasethe galvanizing *** results show that the valence states of Mn in the interfacial alloy layer are Mn'*and Mn*+,and the valence stales of Fe are Fe^0,Fe^2+and Fe^3+.The experimental results show that the hot-dip galvanizing performanceis the best at-10℃ and the formation of Mn and Fe intermetallic oxides has a bad effect on hot-dip galvanizing behaviorof the high-manganese TWIP *** types of the formed surface oxides(MnO,Mn3O4,Mn2O3,FeO3,and Fe2MnO4)onthe surface of the steel sheet are *** can obtain the best hot-dip galvanizing performance of the high-manganese TWIP steel by controlling the dew point from-10 to-5℃.

关键词： High-manganese twinning-induced plasticity steel-Hot-dip galvanizing Dew point-Glow discharge optical emission spectrometry X-ray photoelectron spectroscopy Surface oxide

New Fossil Palaeontinids from the Middle Jurassic of Daohugou,Inner Mongolia,China (Insecta,Hemiptera)

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Acta Geologica Sinica(English Edition) 2009年第1期83卷 33-38页

作者： WANG Ying ren dong Key Lab of lnsect Evolution and Environmental Changes Capital Normal University Beijing 100048 China

Two new genera and species of fossil Palaeontinidae are described from Daohugou Village, Inner Mongolia, China： Cladocossus undulatus gen. et sp. nov. and Cricocossus paradoxus gen. et sp. nov. Both new genera are described based on well-preserved forewings. This discovery confirms the high diversity of palaeontinids during the Middle Jurassic. Both specimens have interesting modal structures which are new to Palaeontinidae： M five-branched and M3 with two branches. Based on this character, wing structural characteristic is discussed.

关键词： morphology taxonomy palaeontology Cicadomorpha Mesozoic

New Fossil Beetles of the Family Elateridae from the Jehol Biota of China(Coleoptera:Polyphaga)

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Acta Geologica Sinica(English Edition) 2008年第2期82卷 236-243页

作者： CHANG Huali ren dong College of Life Sciences Capital Normal University. Beijing 100037 China

Two new species of elaterids assigned to two new genera with intriguing fossa on prosternum are described and illustrated： Bilineariselaterfoveatus gen. et sp. nov. and Curtelater wui gen. et sp. nov. from the Upper Jurassic-Lower Cretaceous Yixian Formation of western Liaoning, China. The origin of the clicking mechanism in these beetles and the systematic position of the two genera are briefly discussed.

关键词： Insecta click-beetles (Elateridae) Late Jurassic-Early Cretaceous Yixian Formation,Jehol fauna

GLCM Based Extraction of Flame Image Texture Features and KPCA-GLVQ Recognition Method for Rotary Kiln Combustion Working Conditions

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International Journal of Automation and computing 2014年第1期11卷 72-77页

作者： Jie-Sheng Wang Xiu-dong ren School of Electronic and Information Engineering University of Science and Technology Liaoning

According to the pulverized coal combustion flame image texture features of the rotary-kiln oxide pellets sintering process,a combustion working condition recognition method based on the generalized learning vector(GLVQ) neural network is ***,the numerical flame image is analyzed to extract texture features,such as energy,entropy and inertia,based on grey-level co-occurrence matrix(GLCM) to provide qualitative information on the changes in the visual appearance of the *** the kernel principal component analysis(KPCA) method is adopted to deduct the input vector with high dimensionality so as to reduce the GLVQ target dimension and network scale ***,the GLVQ neural network is trained by using the normalized texture feature *** test results show that the proposed KPCA-GLVQ classifer has an excellent performance on training speed and correct recognition rate,and it meets the requirement for real-time combustion working condition recognition for the rotary kiln process.

关键词： Rotary kiln pellets sintering texture features grey-level co-occurrence matrix kernel principal component analysis generalized learning vector quantization

New Genus and Species of Rhyacophilidae (Insecta:Trichoptera) from the Middle Jurassic of China

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Acta Geologica Sinica(English Edition) 2013年第6期87卷 1495-1500页

作者： GAO Yan YAO Yunzhi ren dong Key Laboratory of Insect Evolution and Environmental Changes Capital Normal University State Key Laboratory of Palaeobiology and Stratigraphy Nanjing Institute of Geology and Palaeontology CAS

One new genus with a new fossil species,Declinimodus setulosus *** *** was found in the Middle Jurassic Jiulongshan Formation of Daohugou,Inner Mongolia,China,are described and *** new species is assigned to the Rhyacophilidae according to buttonshaped of the 2nd segment of maxillary palp,and the forked R1 （in the forewing,located near apex）.These new discovery are the earliest fossil records of Rhyacophilidae,which providing important evident for the study of the origin and early evolution of Trichoptera.

关键词： Trichoptera Rhyacophilidae fossil Jiulongshan Formation

Prophaenognatha,a New Aclopinae Genus from the Yixian Formation,China and Its Phylogenetic Position Based on Morphological Characters(Coleoptera:Scarabaeidae)

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Acta Geologica Sinica(English Edition) 2011年第5期85卷 984-989,991-993,990页

作者： Ming BAI dong ren Xingke YANG Key Laboratory of Zoological Systematics and Evolution Institute of Zoology Chinese Academy of Sciences Beijing 100101 China College of Life Sciences Capital Normal University Beijing 100037 China

Prophaenognatha robusta *** ***.(Scarabaeoidea:Scarabaeidae:Aclopinae),the best-preserved aclopine fossil so far,is described and illustrated from the Upper Jurassic-Lower Cretaceous Yixian Formation of the Jehol Biota,western Liaoning Province,NE *** key to extinct and extant genera of Aclopinae is given and the monophyly of extant and fossil Aclopinae lineages is supported by five character *** new taxon provides evidence about the evolution of Scarabaeoidea with its phylogenetic position inferred based on 68 morphological characters.

关键词： Jurassic-Cretaceous scarab beetles Aclopinae Prophaenognatha taxonomy Jehol biota China