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Chinese Geographical Science 2018年第2期28卷 313-324页

作者： LI Bo SHI Zhaoyuan tian chuang Center for Studies of Marine Economy and Sustainable Development Liaoning Normal University

Adaptability theory is an important tool to analyze the degree, mechanism and process of interaction between human and environment, which provides a new perspective for the research of sustainability assessment. Based on the entropy weight-TOPSIS method and the panel Tobit model from the perspective of adaptability, spatio-temporal difference and influencing factors of environmental adaptability assessment of human-sea economic system in Liaoning coastal area was measured by using the city panel data from 2000 to 2014. The results indicate that: 1) The environmental adaptability of human-sea economic system in Liaoning coastal area rose slowly from 2000 to 2014, the developing trend of each city was linearly related, and Dalian was in a leading position. 2) The different adaptability elements and adaptability subsystem show polarization phenomenon and completely different regional evolution characteristics. The adaptability of human-sea environment system and human-sea economic system rose slowly and had the characteristics of linear relationship, and the adaptability of human-sea environment system is the main reason for the difference of environmental adaptability of human-sea economic system. 3) Science and technology, environmental management, marine economic development level, port construction are the driving factors of the healthy development of environmental adaptability of urban human-sea economic system.

关键词： human-sea economic system adaptability human-sea environment system influencing factors Liaoning coastal area

Controlled fabrication of hierarchically microstructured surfaces via surface wrinkling combined with template replication

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Chinese Chemical Letters 2015年第1期26卷 15-20页

作者： chuang tian Hai-Peng Ji Chuan-Yong Zong Cong-Hua Lu School of Materials Science and Engineering Tianjin University

In this paper,we present a simple method by combining surface wrinkling and template replication to create a series of hierarchical structures on polydimethylsiloxane（PDMS） *** primary stable lined patterns are formed by duplicating commercialized compact disk and digital versatile disk with *** secondary microscale patterns are from surface wrinkling,which is elicited by oxygen plasma（OP） treatment of the prestrained PDMS stamp followed with the prestrain *** systematically varying the OP exposure duration,the prestrain,and the angle（θ） between the primary pattern orientation and the prestrain direction,we obtain highly ordered well-organized composite patterns from different patterning techniques and with different length scales and mechanical stabilities.

关键词： Surface wrinkling Template replication Stress relief Hierarchical structures

Effects of Sm-doping on microstructure,magnetic and microwave absorption properties of BiFeO_(3)

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Journal of Rare Earths 2021年第7期39卷 835-843,I0003页

作者： chuang tian Qingrong Yao Zhaofei Tong Huaiying Zhou Guanghui Rao Jianqiu Deng Zhongmin Wang Jiang Wang School of Materials Science and Engineering Guilin University of Electronic TechnologyGuilin 541004China Guangxi Key Laboratory of Information Materials Guilin University of Electronic TechnologyGuilin 541004China

In this paper,polycrystalline samples of Bi_(1-x)Sm_(x)FeO_(3)(x=0,0.05,0.1,0.15) were successfully synthesized by sol-gel *** effects of Sm concentration on the crystal structure,morphology,chemical states,magnetic properties and microwave absorption performance were studied by X-ray diffraction(XRD),scanning electron microscopy(SEM),transmission electron microscopy(TEM),X-ray photoelectron spectroscopy(XPS),a vibrating sample magnetometer(VSM) and a Vector network analyzer(VNA),*** results show that the rare earth Sm doping causes the crystal structure to *** x≤0.1,Bi_(1-x)Sm_(x)FeO_(3) is the distorted rhombohedral structure with space group *** the increase of Sm doping amount to x=0.15,the phase structure of Bi_(1-x)Sm_(x)FeO_(3) changes from rhombohedral structure to cubic structure with the space group Pm3 *** particle size decreases with the increase of the Sm doping *** analysis results show that Sm doping can effectively reduce the oxygen vacancies and significantly improve its magnetic *** results exhibit that moderately doped rare earth Sm element can effectively improve microwave absorption properties of Bi_(1-x)Sm_(x)FeO_(3) *** Sm doping amount of x is 0.1,the Bi_(0.9)Sm_(0.1)FeO_(3) compound has good microwave absorption performance,and the minimum reflection loss value of Bi_(0.9)Sm_(0.1)FeO_(3) powder reaches about-32.9 dB at11.7 GHz,and its effective absorption bandwidth(RL <-10 dB) is 2.6 GHz with the optimal matching thickness of 2.0 mm.

关键词： BiFeO_(3) Crystal structure Magnetic properties Microwave absorption Reflection loss Rare earths

Generation of Ultraviolet Radiation at 266 nm with RbBe_(2)BO_(3)F_(2) Crystal

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Chinese Physics Letters 2012年第6期29卷 137-140页

作者： WANG Li-Rong WANG Gui-Ling ZHANG Xin LIU Li-Juan WANG Xiao-Yang ZHU Yong CHEN chuang-tian Beijing Center for Crystal Research and Development Key Laboratory of Functional Crystals and Laser TechnologyTechnical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190 Graduate University of Chinese Academy of Sciences Beijing 100190

High-average-power fourth-harmonic generation (4thHG) of an Nd:YAG laser is achieved with a RbBe_(2)BO_(3)F_(2) (RBBF) costal.A maximum output power of 3 W at 266nm is *** our knowledge,this is the first time that eff... 详细信息

关键词： harmonic Nd:YAG angular

Detailed electronic structure of three-dimensional Fermi surface and its sensitivity to charge density wave transition in ZrTe3 revealed by high resolution laser-based angle-resolved photoemission spectroscopy

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Chinese Physics B 2018年第8期27卷 535-542页

作者： Shou-Peng Lyu Li Yu Jian-Wei Huang Cheng-tian Lin Qiang Gao Jing Liu Guo-Dong Liu Lin Zhao Jie Yuan chuang-tian Chen Zu-Yan Xu Xing-Jiang Zhou National Laboratory for Superconductivity Beijing National Laboratory for Condensed Matter PhysicsInstitute of PhysicsChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences B eijing 100049China Max-Planck-Institut fiir Festki~rperforschung Heisenbergstrasse 170569 StuttgartGermany Technical Institute of Physics and Chemistry Chinese Academy of SciencesBeijing 100190China Collaborative Innovation Center of Quantum Matter Beijing 100871China

The detailed information of the electronic structure is the key to understanding the nature of charge density wave （CDW） order and its relationship with superconducting order in the microscopic level. In this paper, we present a high resolution laser-based angle-resolved photoemission spectroscopy （ARPES） study on the three-dimensional （3D） hole-like Fermi surface around the Brillouin zone center in a prototypical quasi-one-dimensional CDW and superconducting system ZrTe3. Double Fermi surface sheets are clearly resolved for the 3D hole-like Fermi surface around the zone center. The 3D Fermi surface shows a pronounced shrinking with increasing temperature. In particular, the quasiparticle scattering rate along the 3D Fermi surface experiences an anomaly near the charge density wave transition temperature of ZrTe3 - 63 K）. The signature of electron-phonon coupling is observed with a dispersion kink at -20 meV; the strength of the electron-phonon coupling around the 3D Fermi surface is rather weak. These results indicate that the 3D Fermi surface is also closely connected to the charge-density-wave transition and suggest a more global impact on the entire electronic structure induced by the CDW phase transition in ZrTe3.

关键词： angle-resolved photoemission spectroscopy ZrTe3, scattering rate electron-phonon coupling

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因果关系与因果责任

自然辩证法研究 2016年第3期32卷 14-19页

作者：初维峰田闯中国科学院大学人文学院北京100049 中国科学院自然科学史研究所北京100190

基斯特勒继承和发展了费尔、萨尔蒙和徳欧等人的因果关系理论,并认为应该把我们通常所认为的因果关系分为"因果关系"和"因果责任"两个部分。但是,他的努力以失败告终。可以断言:只有放弃把因果关系还原为迁移的物理的联系,才能很好地解... 详细信息

基斯特勒继承和发展了费尔、萨尔蒙和徳欧等人的因果关系理论,并认为应该把我们通常所认为的因果关系分为"因果关系"和"因果责任"两个部分。但是,他的努力以失败告终。可以断言:只有放弃把因果关系还原为迁移的物理的联系,才能很好地解决基斯特勒的因果理论所遇到的难题,才能丰富和发展因果理论。

关键词：基斯特勒因果关系因果责任事件事实

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紫外、深紫外非线性光学晶体探索十年回顾

人工晶体学报 2001年第1期30卷 36-42页

作者：陈创天中国科学院理化技术研究所

本文讨论了近 10年来我们研究组在探索紫外、深紫外非线性光学晶体方面的经历。这些经历中有成功的一面 ,也有不成功的一面。成功的一面包括KBBF晶体的发现及最短倍频波的输出( 184 .7nm) ,以及最近使用的一种特殊的器件设计 ,使KBBF晶... 详细信息

本文讨论了近 10年来我们研究组在探索紫外、深紫外非线性光学晶体方面的经历。这些经历中有成功的一面 ,也有不成功的一面。成功的一面包括KBBF晶体的发现及最短倍频波的输出( 184 .7nm) ,以及最近使用的一种特殊的器件设计 ,使KBBF晶体能够产生有效的深紫外谐波光输出 ;KABO晶体的发现及厘米级晶体的获得 ,有可能使此晶体在Nd∶YAG激光的 4、5倍频器件中得到应用。而我们没有想到的是线性和非线性光学性能均很优秀的SBBO晶体 ,却发现结构的完整性有问题 ,目前还不能得到实际的应用 ,在今后仍需花很大的精力去研究它。最后 ,我们虽然已花了 10年时间 ,但深紫外非线性光学晶体仍旧没有得到理想的解决 ,还需我们继续努力。由此可见 ,一个科学问题的认真解决 ,是需要花非常长的时间。本文希望把我们研究组的近 10年来的经验写出来 ,供大家参考 ,以求共勉。

关键词：非线性光学晶体紫外深紫外结构性能关系 KBBF KABO

环渤海地区人海经济系统环境适应性时空差异及影响因素

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地理学报 2018年第6期73卷 1121-1132页

作者：李博史钊源韩增林田闯辽宁师范大学海洋经济与可持续发展研究中心大连116029

适应性是全球变化和环境与发展研究的热点和重要领域,并为区域可持续发展研究提供了新的研究框架和有效分析工具。以适应性为切入点,基于敏感性、稳定性、响应3要素构建评估框架,应用熵权TOPSIS法和协整检验分析环渤海地区人海经济系统... 详细信息

适应性是全球变化和环境与发展研究的热点和重要领域,并为区域可持续发展研究提供了新的研究框架和有效分析工具。以适应性为切入点,基于敏感性、稳定性、响应3要素构建评估框架,应用熵权TOPSIS法和协整检验分析环渤海地区人海经济系统环境适应性的时空差异和影响因素。结果表明:(1)环渤海地区人海经济系统环境适应性的发展受到内源力和外向力的双重扰动作用;(2)不同适应性要素以及适应性系统时空分异特征显著;人海环境系统敏感性较弱且呈现南北高、中间低的"哑铃形"分布状态;人海环境系统稳定性较差且呈现东高西低的发展态势;人海经济系统响应较弱且呈明显"极差化"分异特征;人海经济系统适应性与人海环境系统适应性大致保持线性相关关系;(3)2000-2014年环渤海地区人海经济系统环境适应性呈缓慢上升趋势,采用聚类分析方法将适应性分为4类,高适应性城市(0.536)为大连;较高适应性城市(0.442~0.482)有天津、烟台、青岛、日照、东营和威海;中适应性城市(0.346~0.380)有秦皇岛、潍坊、营口和丹东;低适应性城市(0.303~0.326)有唐山、葫芦岛、滨州、盘锦、沧州和锦州;(4)人海经济系统环境适应性的影响因素呈现海洋环境管理力度>海洋经济对外交流能力>港口建设水平>人才支持力的正向驱动作用。

关键词：人海经济系统环境适应性时空差异影响因素环渤海地区

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无损伤超光滑LBO晶体表面抛光方法研究

光学技术 2006年第6期32卷 838-841页

作者：李军朱镛陈创天中国科学院理化技术研究所北京人工晶体研究发展中心

传统的抛光LBO晶体的方法是选用金刚石抛光粉在沥青抛光盘上抛光。沥青盘易于变形不容易修整,金刚石粉特别硬容易损伤抛光晶体表面。抛光过程中,抛光盘和抛光粉的选择是非常重要的,直接影响到抛光效率和最终的表面质量。新的抛光LBO晶... 详细信息

传统的抛光LBO晶体的方法是选用金刚石抛光粉在沥青抛光盘上抛光。沥青盘易于变形不容易修整,金刚石粉特别硬容易损伤抛光晶体表面。抛光过程中,抛光盘和抛光粉的选择是非常重要的,直接影响到抛光效率和最终的表面质量。新的抛光LBO晶体的方法,其抛光过程是一个化学机械过程,抛光盘、抛光粉和抛光材料相互作用。选用两种抛光盘(培纶和聚氨酯盘),三种较软的抛光磨料(CeO2,Al2O3和SiO2胶体),并在LBO晶体的(001)面进行抛光实验。用原子力显微镜测量和分析了表面粗糙度。结果表明,使用聚氨酯盘和SiO2胶体能够获得无损伤超光滑的LBO晶体表面,其表面粗糙度的RMS为0.3nm。

关键词：化学机械抛光 LBO晶体超光滑表面表面粗糙度

CHC理论及其在学习困难儿童评估与教育干预中的应用

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中国特殊教育 2008年第5期 47-52页

作者：赵微田创陕西师范大学教育科学学院西安710062

本文介绍了CHC理论的基本内容以及建立在该理论基础上的认知能力评估系统。该理论构架对学习障碍儿童认知能力评估与策略干预有着重要的理论指导作用:(1)利于确定个体差异的实质;(2)为教育干预策略提供有效依据;(3)利于促进学习困难的... 详细信息

本文介绍了CHC理论的基本内容以及建立在该理论基础上的认知能力评估系统。该理论构架对学习障碍儿童认知能力评估与策略干预有着重要的理论指导作用:(1)利于确定个体差异的实质;(2)为教育干预策略提供有效依据;(3)利于促进学习困难的理论研究。

关键词： CHC理论认知能力学习障碍教育干预