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Researches of soft-sediment deformation structures and seismites in China—A brief review

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Journal of Palaeogeography 2016年第4期5卷 311-317页

作者： Zeng-Zhao Feng Zhi-Dong Bao xiu-juan Zheng Yuan Wang China University of Petroleum(Beijing)

During the past 30 years （1987-2016）, a great progress has been made in researches of soft-sediment deformation structures （SSDS）, seismites and pataeoearthquakes in China. However, the research thought of this academic fietd is not open enough. It is atmost with one viewpoint or one voice, i.e., atmost art the papers pubtished in journals of China considered the layers with SSDS as seismites. On the other hand, the authors are very glad to learn that the professors and students of China University of Petroleum （East China） have proposed different academic viewpoints on the origin of SSDS in Lingshan Istand, Qingdao, Shandong Province, China. It is a very active academic atmosphere. The authors＇ ideas are as follows：（1） The SSDS are sedimentary structures with multi-origin. The term ＂SSDS＂ is a good sedimentary and geological term and shoutd be utilized continuat[y. （2） The term ＂seismites＂ is a term which is definitety assigned to the layers with SSDS induced by earthquakes. It is one type of the tayers with SSDS. It is not equal to SSDS. （3） Some geotogists suggested obsoleting the term ＂seismites＂. These suggestions are rational However, since the term ＂seismites＂ has been utilized for a long time in China and worldwide, to obsolete this term should be discussed and agreement should be acquired from numerous geologists in China and worldwide. It may be suitable that let the geological practice decide whether to obsolete it or not. （4） Hopefully, further progress will be made in the researches of SSDS.

关键词： Soft-sediment deformation structures (SSDS) Multi-origin Seismites Pataeoearthquake Ling-shan Island China

Effects of Functionalized Graphenes on the Isothermal Crystallization of Poly(L-lactide) Nanocomposites

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Chinese Journal of Polymer Science 2016年第1期34卷 111-121页

作者：赵丽芬 Qi Li Ru-liang Zhang xiu-juan Tian Lei Liu School of Materials Science and Engineering Shandong University of Science and Technology

The effects of graphene oxide（GO） with polar groups and functionalized GO（f GO） with nonpolar groups on the isothermal crystallization of poly（L-lactide）（PLLA） were compared. Functionalized GO was obtained by grafting octadecylamine and characterized by FTIR, WAXD and TGA. Isothermal crystallization kinetics of PLLA/GO and PLLA/f GO nanocomposites were investigated by combining DSC data and Avrami equation. The results showed that f GO could improve PLLA crystallization rate more obviously than GO. By analyzing the morphology obtained from POM, SEM and TEM, it was found f GO with large layer space dispersed better in PLLA and supplied more nucleation sites than GO. Therefore, for the multilayer graphene, increasing the layer spaces is important to improve its dispersion in polymers, which will cause the crystal kinetics changing of polymers.

关键词： Crystallization Graphene oxide Poly(L-lactide)

There was no “Great Bank of Guizhou” in the Early Triassic in Guizhou Province, South China

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Journal of Palaeogeography 2015年第1期4卷 99-108页

作者： Zeng-Zhao Feng Zhi-Dong Bao xiu-juan Zheng Yuan Wang China University of Petroleum (Beijing)

In the 1990s, some geologists named the Early Triassic isolated carbonate platform in the Luodian area of southern Guizhou Province in South China as the ＂Great Bank of Guizhou＂. During the past twenty years, this term ＂Great Bank of Guizhou＂ was used in more than 300 articles in foreign countries. In the 1990s, the authors have studied the lithofacies palaeogeography of the Early and Middle Triassic in South China. In June 2014, we went to the Luodian area and studied the Early Triassic Bianyang section again. According to the geological data we acquired, in the Early Triassic of the Luodian area of southern Guizhou Province, there was only an isolated ＂Luodian Carbonate Platform＂, while no bank existed, not to mention the ＂Great Bank of Guizhou＂. It is worth further discussion.

关键词： Early Triassic Luolou Formation Ziyun Formation Great Bank of GuizhouLuodian Carbonate Platform Bianyang section South China

Unusual infrared emission toward Sgr B2: possible planar C24

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Research in Astronomy and Astrophysics 2019年第10期19卷 35-42页

作者： xiu-Hui Chen Fu-Yuan Xiang Xue-juan Yang Aigen Li Department of Physics Xiangtan University Xiangtan 411105 China Department of Physics and Astronomy University of Missouri Columbia MO 65211 USA

Interstellar graphene could be present in the interstellar medium(ISM), resulting from the photochemical processing of polycyclic aromatic hydrocarbon(PAH) molecules and/or collisional fragmentation of graphitic particles. Indeed, by comparing the observed ultraviolet(UV) extinction and infrared(IR) emission of the diffuse ISM with that predicted for graphene, as much as ~ 2% of total interstellar carbon could be locked up in graphene without violating the observational constraints. While the possible detection of planar C24, a small piece of a graphene sheet, has been reported towards several Galactic and extragalactic planetary nebulae, graphene has not yet been detected in interstellar environments. In this work, we search for the characteristic IR features of C24 at ~ 6.6, 9.8 and 20 μm toward Sgr B2, a high-mass star formation region, and find a candidate target toward R.A.(J2000)= 267.05855?and Decl.(J2000)=-28.01479?in Sgr B2 whose Spitzer/IRS spectra exhibit three bands peaking at ~ 6.637, 9.853 and 20.050 μm which appear to be coincident with those of C24. Possible features of C60 are also seen in this region. The candidate region is a warm dust environment heated by massive stars or star clusters, associated with a WISE spot(a tracer of star formation activity), close to the HII region candidate IRAS 17450–2759, and is surrounded by seven young stellar object candidates within ~ 5′, suggesting that the creation and/or excitation of C24 could be related to star formation activities.

关键词： line identification-ISM lines and bands-ISM molecules

Surface nanostructures in commercial pure Ti induced by high energy shot peening

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中国有色金属学会会刊：英文版 2004年第z1期14卷 215-218页

作者： CHEN Chun-huan REN Rui-ming ZHAO xiu-juan ZHANG Yu-jun School of Materials Science and Engineering Dalian Jiaotong University Dalian 116028 China School of Materials Science and Engineering Dalian Jiaotong University Dalian 116028 China School of Materials Science and Engineering Dalian Jiaotong University Dalian 116028 China School of Materials Science and Engineering Dalian Jiaotong University Dalian 116028 China

The high-energy shot peening (HESP) technique was used to obtain the surface nanocrystalline microstructure for a hcp metal titanium. XRD, SEM and TEM were applied to characterize the microstructure of the surface layer. Large amount of the deformation twins in the surface layer were observed by SEM in the specimens after HESP treatment in a shot-time, and the number of deformation twins both in a single plane and in intersecting planes increases with HESP time, until the twin character disappears completely in the top surface layer, which means that the severe plastic deformation(SPD) occurs on the surface. The XRD analysis results show that after HESP treatmen for 30 - 60 min the surface grain size decreases to nanoscale. According to the TEM images and corresponding diffraction patterns from SPD areas of the 120 min-treatment specimen, the measured grain size near the surface is about 20 - 30 nm. The grain size in deformation layer increases with the depth from the surface, and the nanostructured layer is about 20 μm in depth. Therefore, the surface nanocrystalline and a gradient microstructure from the surface to the matrix are obtained, which results in the micro-hardness decreasing from surface to the matrix gradually.

关键词： surface nanocrystallization shot peening commercial pure Ti

Primary primitive neuroectodermal tumor in the pericardium-a focus on imaging findings:A case report

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World Journal of Clinical Cases 2021年第17期9卷 4336-4341页

作者： Shu-Ming Xu juan bai Jin-Hua Cai Department of Radiology Children’s Hospital of ShanxiTaiyuan 030013Shanxi ProvinceChina Department of Medical Imaging Shanxi Medical UniversityTaiyuan 030001Shanxi ProvinceChina Department of Radiology Children’s HospitalChongqing Medical UniversityChongqing 400014China

BACKGROUND Primitive neuroectodermal tumors(PNETs)are rare,sporadic malignant tumors of the peripheral nervous system,bone,or soft ***,to the best of our knowledge,only three cases of PNET in the pericardium have been reported in the English literature,and their magnetic resonance imaging findings have not previously been *** SUMMARY A 3-year-old boy was hospitalized with a 1-wk history of recurrent vomiting and *** history-taking revealed no evidence of heart *** tomography demonstrated a soft tissue mass in the left pericardial cavity with heterogeneous contrast *** border between the mass and the heart was poorly *** revealed a mass invading the left ventricle,with a high risk of *** mass was considered inoperable.A biopsy was performed,and the histological and immunohistochemical findings confirmed the diagnosis of primary PNET of the *** patient received four cycles of standard *** magnetic resonance imaging 3 mo after the initiation of chemotherapy revealed that the tumor in the pericardium still existed,but its volume had slightly *** patient was lost to follow-up,and the final outcome was therefore *** Medical imaging plays an important role in defining the pericardial origin of PNET and understanding its *** resonance imaging can provide more information on the tumor than computed tomography and may thus aid therapeutic planning.

关键词： Primary primitive neuroectodermal tumors Pericardium Tumor Computed tomography Magnetic resonance imaging Case report

Locally distinguishing genuinely nonlocal sets with entanglement resource

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Communications in Theoretical Physics 2024年第12期76卷 44-51页

作者： Qiao Qiao Su-juan Zhang Chen-Ming bai Lu Liu Department of Mathematics and Physics Shijiazhuang Tiedao University

A set of orthogonal product states is deemed genuinely nonlocal if they remain locally indistinguishable under any *** this paper,we first construct a genuinely nonlocal product basis BⅠ（5,3） in C5■ C5■ C5using a set of nonlocal product states in C3■ ***,we obtain a genuinely nonlocal product basis BⅡ（5,3） by replacing certain states in BⅠ（5,3） with some superposition *** achieve perfect discrimination of the constructed genuinely nonlocal product basis,separately employing two EPR states and one GHZ *** protocol is more efficient than quantum teleportation.

关键词： entanglement-assisted discrimination genuinely nonlocal local discrimination

Interactive response of photosynthetic characteristics in Haloxylon ammodendron and Hedysarum scoparium exposed to soil water and air vapor pressure deficits

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Journal of Environmental Sciences 2015年第8期27卷 184-196页

作者： Chunmei Gong Jiajia Wang Congxia Hu Junhui Wang Pengbo Ning juan bai College of Life Sciences Northwest A&F University College of Veterinary Medicine Northwest A&F University

C4 plants possess better drought tolerance than C3 plants. However, Hedysarum scoparium, a C3 species, is dominant and widely distributed in the desert areas of northwestern China due to its strong drought tolerance. This study compared it with Haloxylon ammodendron, a C4 species, regarding the interactive effects of drought stress and different leaf–air vapor pressure deficits. Variables of interest included gas exchange, the activity levels of key C4 photosynthetic enzymes, and cellular anatomy. In both species, gas exchange parameters were more sensitive to high vapor pressure deficit than to strong water stress, and the net CO2 assimilation rate（A n） was enhanced as vapor pressure deficits increased. A close relationship between A n and stomatal conductance（g s） suggested that the species shared a similar response mechanism. In H. ammodendron, the activity levels of key C4 enzymes were higher, including those of phosphoenolpyruvate carboxylase（PEPC） and nicotinamide adenine dinucleotide phosphate-malate enzyme（NADP-ME）, whereas in H. scoparium, the activity level of nicotinamide adenine dinucleotide-malate enzyme（NAD-ME） was ***, H. scoparium utilized adaptive structural features, including a larger relative vessel area and a shorter distance from vein to stomata, which facilitated the movement of water. These findings implied that some C4 biochemical pathways were present in H. scoparium to respond to environmental challenges.

关键词： C4photosynthesis Gas exchange H.ammodendron H.scoparium Water stress Vapor pressure deficit

Strong water-resistant Co-Mn solid solution derived from bimetallic metal-organic frameworks for catalytic destruction of toluene

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CHINESE JOURNAL OF CHEMICAL ENGINEERING 2024年第11期75卷 142-151页

作者： Lei, juan Huang, Ying bai, Baobao Ren, Xiaoli Cheng, Lijun Wang, Shuang Taiyuan Inst Technol Dept Environm & Safety Engn Taiyuan 030018 Peoples R China Taiyuan Univ Technol Coll Environm & Ecol Jinzhong 030600 Peoples R China Taiyuan Univ Technol Shanxi Key Lab Cpd Air Pollut Identificat & Contro Jinzhong 030600 Peoples R China

The construction of Co-Mn mixed-metal oxide catalysts derived from bimetallic metal-organic frameworks (MOFs) has great significance for catalytic destruction of toluene. Hence, a series of CoaMnbOx-MOFs with different physicochemical properties were successfully synthesized via pyrolysis of Co-Mn bimetallic MOFs. Attributing to the higher specific surface area, more active sites (Co3+ and Mn3+), stronger reducibility, and abundant defect sites, the as-prepared Co1Mn1Ox-MOFs displayed an optimal catalytic performance, especially the excellent water vapor resistance. The result of the in situ diffuse reflectance infrared Fourier transform spectroscopy demonstrated that toluene can be degraded at relatively low temperatures (< 100 degrees C). Benzyl alcohol, benzaldehyde, benzoic acid, and maleic anhydride were the main intermediate products in toluene degradation process. This work reveals the value of bimetallic MOFs derived Co-Mn oxides for toluene oxidation and presents a novel avenue for designing mixed-metal oxide catalysts with potential applications in volatile organic compounds (VOCs) catalytic oxidation.

关键词： Co-Mn oxide catalyst Bimetallic metal-organic frameworks (MOFs) Catalytic oxidation Water-resistant