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Journal of Materials Science & Technology 2000年第1期16卷 67-70页

作者： Ming CHANG (tianjin Institute of Technology, tianjin 3.0191, china) tianjin Institute of Technology Tianjin 300191 China

The values of mosaic block size and microstrain measured by the method of Voigt function are sometimes largely erroneous and difficult to be revised. In this paper, the causes of the 'hook effect' which inevitably exists in the method of Fourier analysis are explained; then the method for resolving this effect is put forward; and finally the method of hypothetical function is used to simplify the method of the Fourier analysis from multi-peak to single-peak. By introducing the parameter m, this method can not only indicate the degree of errors, but also revise them as well, it is simple, clear and able to accomplish the intricate pattern calculation quickly by the aid of computer. In the end, we argue the identity between method of the approximate function and the Fourier analysis, and give a more accurate proportional coefficient k.

关键词： Measurement theory

Petrogenesis and significance of early Yanshanian syenite-granite complex in eastern Nanling Range

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Science china Earth Sciences 2005年第7期48卷 912-924页

作者： CHEN Peirong1, ZHOU Xinmin1, ZHANG Wenlan1, LI Huimin2, FAN Chunfang1, SUN Tao1, CHEN Weifeng1 & ZHANG Min1 1. State Key Laboratory of mineral Deposits Research, Department of Earth Sciences, Nanjing University, Nanjing 210093. china 2. tianjin Institute of Geology and mineral resources, china Geological Survey, tianjin 3.0170, china State Key Laboratory of mineral Deposits Research Department of Earth Sciences Nanjing University Nanjing 210093 China tianjin Institute of Geology and mineral resources China Geological Survey Tianjin 300170 China

In the eastern Nanling Range there exists the early Yanshanian syenite-granite assemblage. A representative example is the Pitou-Tabei complex composed of the Tabei syenite pluton and the Pitou syenogranite pluton in southern Jiangxi Province. U-Pb zircon dating yields ages of 188.6±2.2 Ma for the Tabei pluton and 186.3.1.1 Ma for the Pitou pluton. The Tabei syenite is characterized by relatively low SiO2 content (62.40% - 68.75%), high alkalis (K2O+Na2O = 10.56%-11.96%), low percent K2O/Na2O ratios (0.56-0.93., metaluminous fea- ture (A/CNK = 0.80-1.00), enrichment in LILE (Rb, Ba, K) and HFSE (Th, U, Nb, Ta, Zr, and so on), weakly negative to positive Eu anomalies (δ Eu = 0.63.1.82), relatively low (87Sr/86Sr)i (0.70412.0.70543., and relatively high ε Nd(t) (3.14-3.52). The Pitou syenogranite is charac- terized by high silicon content (SiO2 = 71.06%-76.28%), relatively low alkalis (K2O+Na2O = 8.10%-9.80%), high percent K2O/Na2O ratios (1.22-1.94), metaluminous feature (A/CNK = 0.94-1.07), enrichment in Rb, Th (U), K, depletion in Ba, Nb, Ta, Sr, P , Zr, Ti, high ΣREE (av- eraging 451.03.μg/g), strong negative Eu anomalies (δ Eu = 0.27-0.3.), relatively high (87Sr/86Sr)i (0.70805-0.70912., and relatively low ε Nd( t ) (?5.3.-?6.29). The Tabei syenite and Pitou syenogranite both have the characteristics of A-type granites. The former is considered to be from the asthenosphere mantle, and the latter was the product of the crust-mantle mixture. They both were probably formed in a rifting setting.

关键词： syenite-granite assemblage single zircon U-Pb age rifting environment Nanling Range.

Numerical Model of Storm Surge and Inundation in Bohai Bay

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Transactions of tianjin University 2011年第1期17卷 57-61页

作者：李大鸣付庆军解以扬白玲 Key Laboratory of Harbor and Ocean Engineering of Ministry of Education of china School of Civil Engineering Tianjin University Department of Civil and Environmental Engineering University of Houston Institute of tianjin Meteorological Bureau

A two-dimensional numerical model of extratropical storm surge and inundation in Bohai Bay was built based on the unsteady flow Navier-Stokes equations. The model included two sections, one was for the simulation of storm surge tidal level and the other for the simulation of storm surge inundation in the coastal area. While simulating the storm surge tidal level, the alternating direction implicit (ADI) method was applied to dispersing and solving 2D storm surge equations. In the simulation of storm surge inundation, the 2D unsteady flow equations were dispersed and solved using the structureless grids of finite volume method (FVM). A coupling calculation mode of the process of inundation and storm surge tidal level variation was proposed, therefore the storm surge inundation process and area could be calculated while simulating and forecasting the process of storm surge tidal setup. Furthermore, an extratropical storm surge and inundation in Bohai Bay were simulated using this numerical model. Simulation results are in good agreement with the measured data, which shows that this numerical model provides a new method of simulating and forecasting storm surge and inundation in Bohai Bay.

关键词： extratropical storm surge inundation ADI method structureless grid

Zircon geochronology and geochemistry of mafic xenoliths from Liaoning kimberlites:Track the early evolution of the lower crust,North china Craton

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Science china Earth Sciences 2004年第11期47卷 961-972页

作者： ZHENG Jianping1,YU Chunmei1,LU Fengxiang1 & LI Huimin2 1.Faculty of Earth Sciences,china University of Geosciences,Wuhan 43.074,china 2.tianjin Institute of Geology and {3. resources,tianjin 3.0170,china 1. Faculty of Earth Sciences China University of Geosciences 430074 Wuhan China 2. tianjin Institute of Geology and mineral resources 300170 Tianjin China

Mafic xenoliths from Paleozoic Fuxian kimberlites (Liaoning Province) mainly in- clude garnet granulite, with minor pyroxene amphibolite, meta-gabbro and pyroxene syenite. The SiO2 contents of the xenoliths are from 47.3.wt% to 49.9 wt%. The granulites are mainly coarse-medium grained and reasonably with well-developed granoblastic (mostly polygonal) texture, contain the assemblage of garnet + plagioclase + pyroxene + K-feldspar ±phlogopite. The mineral assemblage of the amphibolites is plagioclase + pyroxene + amphibole ±K-feldspar, with the equilibrium temperature and pressure conditions of 744—821℃ and 0.76—0.88 GPa. The granulites are regarded as derivation from the lower crust depth (more than 29 km), below the amphibolites. Garnet granulites compositionally correspond to sub-alkalic basalt, and have wide ranges of Ni abundance (13.—840 ppm), and Nb/Y (0.12.1.85), Nb/U (3.51—53.86) and Ta/U (0.3.—2.48). The amphibolite and the syenite correspond to alkalic basalt. The Fuxian ma- fic xenoliths are regarded as the metamorphic product of the underplated magmas (including fractional crystallization or not) experienced the contamination with the pre-existed crustal com- ponents, and partly effected by kimberlitic magmas. The concordant ages of zircons for the gab- bro (2610—2580 Ma) and the near-concordant upper intercept ages of zircons for the garnet granulite and pyroxene amphibolite (2578—253. Ma) indicate that they are currently known as the oldest deep-seated xenoliths from the lower crust of the North china Craton. These ages recorded the formation of the united Eastern Block of the North china Craton, That is, Neoar- chean (2.6—2.5 Ga) is an important continental crustal growth period of the North china Craton. The lower intercept age of the garnet granulite (1853.Ma) recorded an important tectonic thermal event in Paleoproterozoic. This event was probably related to collision of the East and West block, and resulted in the final assembly of the North china

关键词： mafic xenolith, petrochemistry, zircon geochronology, petrogenesis, lower crustal evolution, North china Craton.

构建现代中国特色工程教育治理体系的系统思考

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国家教育行政学院学报 2024年第1期313卷 44-50,95页

作者：天津大学课题组天津大学教育学院

构建工程教育治理体系是赋能工程教育高质量发展,推进高等教育现代化,实现教育、科技、人才一体化部署,凸显中国工程教育治理特色的必然要求。工程教育治理理论模型包含工程教育治理目标、理念、要素及其运行机制。当前,工程教育治理面... 详细信息

构建工程教育治理体系是赋能工程教育高质量发展,推进高等教育现代化,实现教育、科技、人才一体化部署,凸显中国工程教育治理特色的必然要求。工程教育治理理论模型包含工程教育治理目标、理念、要素及其运行机制。当前,工程教育治理面临学生工程实践薄弱、工科教师队伍缺乏工程实践经历、工程教育质量评价和注册工程师制度体系不健全等方面的问题与挑战。借鉴工程教育治理的国际经验,中国特色工程教育治理体系的建设关键在于推进政企产学深度协同、将实践融入工程教育全过程、注重教师分类发展、深化工程教育质量评价改革、构建与工程教育认证相衔接的注册工程师制度。

关键词：工程教育治理体系新工科建设理论模型卓越工程师

Nonlinear optical properties and superluminal propagation in the ruby

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Chinese Science Bulletin 2010年第6期55卷 473-477页

作者： GAO Feng1,2,3.XU JingJun1,2,3.ZHANG GuoQuan1,2,3.& ZHANG WenDing1,2,3.1 Photonics Center,College of Physics Science,Nankai University,tianjin 3.0457,china 2 The Key Laboratory of Advanced Technique and Fabrication for Weak-Light Nonlinear Photonics Materials of Ministry of Education,Nankai University,tianjin 3.0457,china 3.tianjin Key Laboratory of Photonics Materials and Technology for Information Science,Nankai University,tianjin 3.0457,china Photonics Center College of Physics Science Nankai University Tianjin 300457 China Key Laboratory of Advanced Technique and Fabrication for Weak-Light Nonlinear Photonics Materials of Ministry of Education Nankai University Tianjin 300457 China tianjin Key Laboratory of Photonics Materials and Technology for Information Science Nankai University Tianjin 300457 China

In this review article,we summarized the study of the weak light nonlinear properties associated with group velocity change in the *** ruby could be reduced to a two-level system,in which population oscillations could lead to a subluminal *** the modulated TEM00 beam introduced into the ruby,self-phase modulation together with Fraunhofer diffractions and nondegenerate two-wave coupling between different spatial frequency components of the beam occurs at the same *** oscillations,self-phase modulation together with Fraunhofer diffractions and nondegenerate two-wave coupling mechanism competes with each other,which brings a new phenomenon of self-superluminal group velocity propagation in the ruby.

关键词：非线性光学性质超光速传播红宝石自相位调制 TEM00模速度变化光束耦合空间频率

SHALE-FACIES MICROFLORA FROM THE CHANGZHOUGOU FORMATION (CHANGCHENG SYSTEM) IN PANGJIABU REGION, HEBEI, china

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微体古生物学报 1991年第2期 191-193页

作者： Yah Yu-zhong (tianjin Institute of Geology and mineral resources, Chinese Academy, of Geological, Sciences,{3.)

Abundant and diverse microflora were discovered in the black shales of the Changzhougou Formation of the Changcheng System in the Pangjiabu Region of Hebei, located in the western part of the Yanshan Mountains. The microflora assemblage consists of 3.groups, 20 genera, and 75 species, including 2 new genera, 7 new species and 3.affinities. Systematic comparison of the obtained microfossils with the shale-facies

关键词： body SHALE-FACIES MICROFLORA FROM THE CHANGZHOUGOU FORMATION IN PANGJIABU REGION HEBEI china length CHANGCHENG SYSTEM

Geochemical constraints from hydrothermal fluid inclusions of altered deformation zone type Au(Ag)deposits in Yunkai area, South china

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Chinese Science Bulletin 1999年第S2期44卷 230-232页

作者： WANG Zuwei~1, ZHANG Haihua~2, YAO Dongliang~2 and ZHOU Yongzhang~3.1. Department of Geography, tianjin Normal University, tianjin 3.0071, china 2. Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, china 3. Department of Earth Sciences, Zhongshan University, Guangzhou 510275, china eeszhou@*** Department of Geography Tianjin Normal University Tianjin 300071 China Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou 510640 China Department of Earth Sciences Zhongshan University Guangzhou 510275 China

THE altered deformation zone type Au (Ag) deposits share an important part from the precious metallicore deposits in the Yunkai area, South china. Their formation is a history of poly-stage evolution. Pre- liminary source strata, Calidoniam metamorphism, Indosinian-Yanshanian ductile shear deformation andassociated hydrotheraml alteration all play certain roles in the history. This note discusses the geochemical conditional of the hydrothermal fluids during mineralization. Two representative ore deposits, the Pangxidong Ag(Au) deposit and Hetai Au deposits are selectedfor this study. They are hosted in altered ductile shear zones. Wall-rock hydrothermal alteration is bothspatially and temporally associated with the development of the ductile shear system. Silicification occurred throughout the whole alteration process. There are three groups of quartz: thepredeformational quartz, the early stage hydrothermal quartz, and the late stage hydrothermal quartz asso-

关键词： precious metallic deposit fluid inclusions mineralizing fluid South china.

Prediction for Dynamic Characteristics of Ring-Plate Planetary Indexing Cam Mechanism

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Transactions of tianjin University 2009年第4期15卷 249-254页

作者：宋轶民田广才张俊刘明涛刘建平 School of Mechanical Engineering Tianjin University Handling Equipment Mechanical Department Academy of Military Transportation School of Mechanical Engineering Tianjin University of Science and Technology

This paper is aimed to propose an approach to predict the dynamic characteristics of ring-plate planetary indexing cam mechanism, which is a novel type of indexing mechanism that employs internal planetary transmission structure. Firstly, the geometry and structure of the mechanism are discussed and the kinematic practicability is simulated with virtual prototype design. Then a 3. finite element model of the ring-plate planetary indexing cam mechanism is developed with the commercial software of MATLAB and ANSYS. Through the finite element analysis, the natural frequencies and the corresponding mode shapes are predicted in one motion cycle. On the basis of the virtual prototype design and finite element analysis, an experimental prototype is made and tested to validate the prediction of the dynamic characteristics. The agreement between experimental results and the finite element analysis testifies that the finite element model developed is applicable to the prediction of the dynamic characteristics of this type of mechanism.

关键词： ring-plate planetary indexing cam mechanism virtual prototype design finite element mode analysis

Geochemical behavior of elements at fossil sea floor water/sediment interface

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Chinese Science Bulletin 1999年第S2期44卷 232-233页

作者： ZHANG Haihua~1, XIA Yu~1, WANG Zuwei~2 and ZHOU Yongzhang~3.1. Guangzhou Institute of Geochemistry, Chinese Academy of Science, Guangzhou 510640, china 2. Department of Geography, tianjin Normal University, tianjin 3.0071, china 3. Department of Earth Sciences, Zhongshan University, Guangzhou 510275, china Guangzhou Institute of Geochemistry Chinese Academy of Science Guangzhou 510640 China Department of Geography Tianjin Normal University Tianjin 300071 China Department of Earth Sciences Zhongshan University Guangzhou 510275 China

THIS note deals with the geochemical behavior of elements near the water/sediment interface of a fossil seafloor. The Nandan-Hechi basin, located in northwest Guangxi, Southern china, is selected for exemplified study. It is an elongated basin, and developed on a Caledonian basement. Its Devonian strata hosthydrtothermally sedimentary formations, and are typical of the intra-platformal basin facies sediments oversouthern china. A steady sedimentary sequence may be observed, commonly going from carboniferouspelite at bottom, upward through bedded chert, thickly banded argillaceous limestone, thinly bandedsiliceous limestone and small lensiod argillaceous limestone in the middle, to coarse lensoid siliceousand/or argillaceous limestone at the top. The chert and some argillaceous limestone are related to hydrothermally sedimentary origin. The present study focuses on the lensoid argillaceous limestone formation. This formation contains the following characteristic sedimentary structures: small lensoid structure,vermiform structure, wave-shaped banded structure, massive structure, white framboid structure, andcage netting structure.

关键词： water/sediment interface sedimentation periodicity sedimentary geochemistry basin.