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Crustal deformation and tectonic levels of Nujiang Gorge since the Miocene

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Science China Earth Sciences 2018年第1期61卷 93-108页

作者： LIU ZhiCheng JI JianQing sa Xiao CHEN YaPeng ZHONG DaLai China Earthquake Disaster Prevention Center Beijing 100029 China School of Earth and Space Sciences Peking University Beijing 100871 China Power China beijing Engineering Corporation Limited Beijing 100024 China Institution of Geology and Geophysics Chinese Academy of Sciences Beijing 100029 China

Crustal deformation shows different patterns at different depths due to changes in the physical properties of *** levels can be defined based on the geometry and deformation mechanisms of crustal deformation patterns. Nujiang Gorge, with a high riverbed drop, great erosion depth, and strong deformation, has rock exposures at different tectonic levels and thus provides an ideal lab for deformation study. This paper takes the Nujiang Gorge from Chawalong to Fugong as the object to identify structural deformation patterns at different depths through field study and deformation analysis. At depth, the primary form of deformation is flow deformation, as shown on the outcrops at Maji. Ductile shear deformation can be found in many outcrops within the study region, e.g., the Gaoligong dextral shear zone and Puladi-Songta sinistral shear zone that lie to the south and north of Maji, respectively. Further to the north of Puladi, the dominated deformation pattern is similar fold and dense sub-vertical foliation. In addition, brittle faults, as evidence of shallow deformation, can be seen overprinting on the deeper deformation features all over the region. Based on those observations, this paper identifies four tectonic levels from depth to the surface: flow deformation, ductile shear deformation, similar fold, and brittle fault deformation, all of which result from the NEE-SWW compressive stress field. Further evidence from studies on the region′s thermal evolution and regional tectonics suggests that the development of different tectonic levels is closely linked to the discrepant uplift or denudation since the Miocene(~21 Ma).

关键词： Tectonic level Nujiang Gorge Flow deformation Ductile shear deformation Thermal evolution

Pressure-induced structure,electronic,thermodynamic and mechanical properties of Ti_(2)AlNb orthorhombic phase by first-principles calculations

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Rare Metals 2021年第10期40卷 2964-2974页

作者： Zhen-Yi Wei Kang-Ming Hu Bai-Sheng sa Bo Wu Multiscale Computational Materials Facility School of Materials Science and EngineeringFuzhou UniversityFuzhou 350100China

Effects of pressure on lattice parameters, electronic, thermodynamic and mechanical properties of the fully ordered Ti_(2)AlNb orthorhombic phase were studied using first-principles calculations based on density functional theory(DFT). The bonding nature for ordering orthorhombic Ti_(2)AlNb was revealed quantitatively through the electronic structure analyzing. The external pressures play limited roles in the elastic anisotropy of the alloy due to the outstanding dynamical and mechanical stabilities under pressure. However, the shear modulus of O phase manifests anisotropic, where {010} shear planes are the easiest planes to cleave among the principal planes under all *** heat capacities, volume expansions and thermal expansion coefficients were calculated using the quasi-harmonic approximation model based on the phonon dispersion curves. Meanwhile, the bulk modulus, Young’s modulus,shear modulus and the hardness are promptly enhanced under pressure. The predicted results give hints to design Ti_(2)AlNb-based alloy as high-pressure applications.

关键词： Ti2AlNb-based orthorhombic phase Pressure-induced effect Thermodynamic properties Mechanical properties First-principles calculations

Exact solutions of the nonlinear differential-difference equations associated with the nonlinear electrical transmission line through a variable-coefficient discrete(G'/G)-expansion method

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Chinese Physics B 2014年第12期23卷 117-123页

作者： sadou Abdoulkary Alidou Mohamadou Ousmanou Dafounansou Serge Yamigno Doka Département des Sciences Physiques Ecole Normale Supérieure Université de Maroua Nonlinear and Complex Systems Group Faculty of Science University of Douala The Abdus salam International Center for Theoretical Physics

We investigated exact traveling soliton solutions for the nonlinear electrical transmission line. By applying a concise and straightforward method, the variable-coefficient discrete（G /G）-expansion method, we solve the nonlinear differential–difference equations associated with the network. We obtain some exact traveling wave solutions which include hyperbolic function solution, trigonometric function solution, rational solutions with arbitrary function, bright as well as dark solutions.

关键词： nonlinear transmission line discrete(G /G)-expansion method solitary waves

Fabrication of holographic 3-D polymeric photonic crystals in near-Infrared band and study of Its optical property

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Optoelectronics Letters 2008年第2期4卷 133-136页

作者： ZHANG sa-sa WANG Qing-pu ZHANG Xing-yu CHEN Jia-qi WANG Li School of Information Science ＆ Engineering Shandong University Jinan 250100 China Department of Electrical ＆ Computer Engineering The University of Texas at Austin Austin Tx 78731 USA

A three-sidewalls-prism holographic method has been provided for the fabrication of 3-D fcc-type polymeric photonic crystal using negative photoresist. Special fabrication treatment has been introduced to ensure the stability of the fabricated nanostructures. The scanning electronic microscopy (SEM) and the diffraction results testified the good dependability of the fabricated structures. The simulation of the partial band structure is in good agreement with the transmission and reflection spectra obtained by Fourier transform infrared spectroscopy.

关键词：光子晶体高聚物光学设备散射

Model based odia numeral recognition using fuzzy aggregated features

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Frontiers of Computer Science 2014年第6期8卷 916-922页

作者： Tusar Kanti MISHRA Banshidhar MAJHI Pankaj K sa sandeep PANDA Department of Computer Science and Engineering National Institute of Technology Rourkela 769008 India

In this paper, an efficient scheme for recognition of handwritten Odia numerals using hidden markov model （HMM） has been proposed. Three different feature vectors for each of the numeral is generated through a polygonal approximation of object contour. Subsequently, aggregated feature vector for each numeral is derived from these three primary feature vectors using a fuzzy inference system. The final feature vector is divided into three levels and interpreted as three different states for HMM. Ten different three-state ergodic hidden markov models （HMMs） are thus constructed corresponding to ten numeral classes and parameters are calculated from these models. For the recognition of a probe numeral, its log-likelihood against these models are computed to decide its class label. The proposed scheme is implemented on a dataset of 2500 handwritten samples and a recognition accuracy of 96.3% has been achieved. The scheme is compared with other competent schemes.

关键词： handwritten character recognition HMM pattern recognition Odia numeral OCR

The New View of Makeup and the Consumption of Cosmetics among the Women of Shanghai in the Modern Age

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Frontiers of History in China 2020年第3期15卷 482-509页

作者： Song Zuanyou sa Ruojin Institute of History Shanghai Academy of Social SciencesShanghai 200020China 不详

Under the pressure of the national crisis in modem China,millennia-old traditional concepts have been broken and adjusted,and new trends and ideas have emerged in large *** order to defeat local cosmetics,from the moment they entered China foreign cosmetics companies attacked the traditional Chinese cosmetics of eyebrow pigment(dai),lip pigment(gong),rouge(zhi),and face powder(fen).Corresponding to the enlightenment ideas of the early twentieth century,women could no longer pursue beauty in a way that harmed their *** the movement to liberate women's bodies in the 1920s,radical intellectuals developed a severe criticism of the bad habits of using corsets and applying powder,and the concept of"healthy beauty"came into ***,in the context of the development of the women's liberation movement and the respect for women's consumer rights,the healthy beauty theory failed to suppress women's consumption of beauty products,and"natural beauty"and"artificial beauty"ultimately coexisted in lifestyles of women in the modem era of Shanghai.

关键词： history of concepts cosmetics makeup female consumer rights business culture Shanghai women

Emerging blood-based biomarkers for detection of gastric cancer

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World Journal of Gastroenterology 2015年第41期21卷 11636-11653页

作者： Zane Kalnina irēna Meistere Ilze Kikuste Ivars Tolmanis Pawel Zayakin Aija Linē Latvian Biomedical Research and Study Centre Digestive Diseases Centre GASTRO Faculty of Medicine University of Latvia

Early detection and efficient monitoring of tumor dynamics are prerequisites for reducing disease burden and mortality, and for improving the management of patients with gastric cancer(GC). Blood-based biomarker assays for the detection of early-stage GC could be of great relevance both for population-wide or risk groupbased screening programs, while circulating biomarkers that reflect the genetic make-up and dynamics of the tumor would allow monitoring of treatment efficacy, predict recurrences and assess the genetic heterogeneity of the tumor. Recent research to identify blood-based biomarkers of GC has resulted in the identification of a wide variety of cancer-associated molecules, including various proteins, autoantibodies against tumor associated antigens, cell-free DNA fragments, m RNAs and various non-coding RNAs, circulating tumor cells and cancer-derived extracellular vesicles. Each type of these biomarkers provides different information on the disease status, has different advantages and disadvantages, and distinct clinical usefulness. In the current review, we summarize the recent developments in blood-based GC biomarker discovery, discuss the origin of various types of biomarkers and their clinical usefulness and the technological challenges in the development of biomarker assays for clinical use.

关键词： Gastric cancer Biomarker Liquid biopsy Cell-free DNA Cell-free RNA Extracellular vesides Autoantibodies Proteomics

Sino -U .S .Relations in Retrospect and Prospect——In Commemoration of the 25th Anniversary for the Establishment of Diplomatic Relations Between the PRC and the U.S.A

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和平与发展 2004年第2期 60-64页

作者： sa Benwang

近40年内蒙古近地表土壤冻融状态时空演变特征解析

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水土保持研究 2025年第1期32卷 148-159页

作者：田鑫萨楚拉孟凡浩罗敏王牧兰张翔张昊琛内蒙古师范大学地理科学学院内蒙古自治区遥感与地理信息系统重点实验室内蒙古自治区土地储备中心

[目的]解析内蒙古近地表土壤冻融状态的时空分异及变化规律并量化驱动因素的影响，为区域生态环境保护及基础设施建设提供理论依据。[方法]基于ERA5-LAND土壤温度数据，利用Sen趋势分析(Theil-Sen median)、Mann-Kendall检验和多元回归... 详细信息

[目的]解析内蒙古近地表土壤冻融状态的时空分异及变化规律并量化驱动因素的影响，为区域生态环境保护及基础设施建设提供理论依据。[方法]基于ERA5-LAND土壤温度数据，利用Sen趋势分析(Theil-Sen median)、Mann-Kendall检验和多元回归残差分析，对内蒙古地区近40年地表土壤冻融状态的时空演变特征及其驱动因素进行了分析。[结果](1)近40年内蒙古地区秋冬始冻期和完全冻结期起始日期呈推迟趋势，变化速率分别为0.54 d/10 a和0.45 d/10 a;在空间分布上，随着经纬度的增加逐渐提前。冬春解冻期和完全融化期起始日期呈提前趋势，变化速率分别为2.17 d/10 a和2.15 d/10 a;空间上随着经纬度的增加逐渐推迟。(2)秋冬始冻期、完全冻结期和冬春解冻期的发生天数呈减少趋势，变化速率分别为0.10 d/10 a, 2.61 d/10 a和0.27 d/10 a,而完全融化期的发生天数则以2.68 d/10 a的速率在增加。空间分布上，除完全冻结期呈东北向西南逐渐减少的趋势，其余3个阶段均呈东北向西南逐渐增加的趋势。(3)不同土壤冻融状态受气候变化和人类活动共同驱动影响的面积占比最大，其次为单独由气候变化驱动影响的面积占比，单独由人类活动驱动影响的面积占比最小。[结论]近地表土壤冻融状态的时空分异及变化规律明显，不同区域不同土壤冻融状态的驱动力各不相同，对内蒙古地区生态环境保护及基础设施建设意义重大，未来应更加深入分析气候变化及人类活动对其的影响。

关键词：地表土壤冻融时空演变特征内蒙古气候变化人类活动