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民族地区乡村旅游与社会矛盾疏解研究--基于三个典型案例的调查

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广西民族研究 2013年第1期 182-188页

作者：吕华鲜苏红柳桂林理工大学旅游学院桂林理工大学数理学院

本文在田野调查的基础上,通过问卷形式对处于旅游发展生命周期不同阶段的贵州西江千户苗寨、恭城瑶族自治县红岩新村和桂林临桂蝴蝶谷瑶寨景区的乡村旅游与社会矛盾疏解的情况进行研究。结果表明:乡村旅游对社会矛盾疏解的程度在旅游发... 详细信息

本文在田野调查的基础上,通过问卷形式对处于旅游发展生命周期不同阶段的贵州西江千户苗寨、恭城瑶族自治县红岩新村和桂林临桂蝴蝶谷瑶寨景区的乡村旅游与社会矛盾疏解的情况进行研究。结果表明:乡村旅游对社会矛盾疏解的程度在旅游发展生命周期不同阶段是不一致的,处于旅游稳定阶段的乡村旅游对社会矛盾的疏解作用最大,旅游衰落阶段次之,旅游发展阶段最弱。

关键词：民族地区乡村旅游矛盾疏解

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大型点式玻璃幕墙工程实例分析

广州建筑 2003年第5期31卷 28-30页

作者：苏洪流广州建筑工程监理有限公司广州510030

本文以佛山电力调度大楼中的点式玻璃幕墙为例,重点介绍了该点式玻璃幕墙的设计要点及施工过程,对类似的工程设计和施工有一定的参考价值。

关键词：点式玻璃幕墙设计施工

Fire needle up-regulates the expression of ERK1/2 in neural stem cells

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Traditional Medicine Research 2017年第3期2卷 149-154页

作者： Jia-Chun Xu Zhi-Heng Zhao su-Li Cheng Xue Wang Zhao-Hua Jiao Zhi-Min Cai Zhen Zhou Bao-hongliu Yan Li Tianjin University of Traditional Medicine Research TianjinChina Tianjin Gongan Hospital TianjinChina HebeiNormal University of Science&Technology HebeiChina The2nd Affiliated Hospital of Tianjin University of TCM TianjinChina

Objective:To explore the effect of fire needle on the expression of ERK1/2 of neural stem cells(NSCs)obtained from rats with spinal cord injury(SCI).Methods:Sixty SD female rats were randomly divided into 5 groups,including 5 in the blank group,5 in the sham operation group,25 in the model group,and 25 in the fire needle treated *** in the model group and the fire needle treated group were further divided into the 1d group,the 3d group,the 7d group,the 10d group and the 14d group,*** Allen's method was applied to build SCI model,and serum in the abdominal aorta was collected at the indicated time and placed into NSCs culture dishes for ***-PCR was applied to detect the expression of ERK1/***:According to the Basso,Beattie&Bresnahan scale(BBB scale),rats in the model group and the fire needle treated group scored 0 at first day,suggesting a success of modeling after *** scores of the fire needle group were significantly higher than those in the model group(P<0.05).Compared with sham operation group,the expression of ERK1 and ERK 2 in model group and fire needle group were significantly decreased at day 1(P<0.05),and lasted for 3d(P<0.05).At day 7 and day 10,the expressions of ERK1 and ERK2 in the fire needle group were significantly higher than those in the model group(both P<0.05).Conclusion:Fire needle could up-regulate the expression of ERK1 and ERK2 of NSCs from SCI rats.

关键词： Fire needle Spinal cord injury ERK Neural stem cells

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脑肌电信号同步耦合分析方法研究进展

生物医学工程学杂志 2019年第2期36卷 334-337,342页

作者：李素姣刘苏蓝贺喻洪流上海理工大学医疗器械与食品学院康复工程与技术研究所上海200093 上海康复器械工程技术研究中心上海200093 民政部神经功能信息与康复工程重点实验室上海200093

运动神经系统通过神经振荡活动传递运动控制信息,从而引起相应肌肉的同步性振荡活动并反映运动响应信息,然后反馈至大脑皮层,使其能够感知肢体的状态。这种同步振荡活动可反映皮层肌肉功能耦合的连接信息。其中,耦合的强弱由多种因素决... 详细信息

运动神经系统通过神经振荡活动传递运动控制信息,从而引起相应肌肉的同步性振荡活动并反映运动响应信息,然后反馈至大脑皮层,使其能够感知肢体的状态。这种同步振荡活动可反映皮层肌肉功能耦合的连接信息。其中,耦合的强弱由多种因素决定,包括肌肉收缩的力量、注意力、运动意图等,因此分析不同因素影响下的脑肌电信号同步耦合的强弱对运动功能评价及控制方法等研究有重要意义。针对脑肌电信号同步耦合的分析方法,本文主要介绍与比较了线性方法中的相干性分析和格兰杰因果分析,以及非线性方法中的互信息以及传递熵,总结了各方法在脑肌电信号同步耦合的应用研究,以便于相关领域的科研工作者更系统地了解目前脑肌电信号同步耦合分析方法的研究进展。

关键词：相干性分析格兰杰因果分析互信息传递熵

Three dimensional nonlinear shock waves in inhomogeneous plasmas with different size dust grains and external magnetized field

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Plasma Science and Technology 2020年第3期22卷 1-7页

作者： Liping ZHANG Jun FU Junyan su School of Sciences Lanzhou University of TechnologyLanzhou 730050People’s Republic of China

The evolution of three dimensional nonlinear shock waves is investigated in a dusty plasma with inhomogeneous particles’density,nonadiabatic dust charge variation,external magnetized field and power law dust size *** this purpose,a modified nonlinear Korteweg-de Vries Burgers equation containing variable coefficients is obtained by reductive perturbation *** effects of inhomogeneity,dust size distribution,external magnetized field,dust charge variation and obliqueness parameter on shock structures are numerically examined in great ***,research results show that oscillatory shock waves and monotone shock waves exist and transform each other in this system.

关键词： shock structures inhomogeneity nonadiabatic dust charge fluctuation dust size distribution

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连翘酯苷A与弹性蛋白酶相互作用的研究

化学通报 2022年第4期85卷 496-500,385页

作者：付金凤姚红柳尹广婷周雪健苏丽红长春师范大学化学学院长春130032

连翘的主要成分之一连翘酯苷A(FSA)有抗炎活性,对弹性蛋白酶(PPE)有抑制作用。本文通过光谱法以及分子对接模拟法研究了FSA与PPE的相互作用。结果表明,FSA对PPE之间存在π-阳离子、π-π共轭、氢键和疏水作用力等多种作用,能够形成稳定... 详细信息

连翘的主要成分之一连翘酯苷A(FSA)有抗炎活性,对弹性蛋白酶(PPE)有抑制作用。本文通过光谱法以及分子对接模拟法研究了FSA与PPE的相互作用。结果表明,FSA对PPE之间存在π-阳离子、π-π共轭、氢键和疏水作用力等多种作用,能够形成稳定的1∶1的复合物,使得FSA能够抑制PPE的活性,具有抗炎作用。

关键词：连翘酯苷A 弹性蛋白酶光谱法

Ultra wide sensing range plasmonic refractive index sensor based on nano-array with rhombus particles

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Chinese Physics B 2020年第11期29卷 330-335页

作者： Jiankai Zhu Xiangxian Wang Xiaoxiong Wu Yingwen su Yueqi Xu Yunping Qi Liping Zhang Hua Yang School of Science Lanzhou University of TechnologyLanzhou 730050China College of Physics and Electronic Engineering Northwest Normal UniversityLanzhou 730070China

We propose a two-dimensional metal grating with rhombus particles on a gold film structure for refractive index sensing due to its perfect absorption at near-infrared *** two-dimensional metal grating coupling,the incident light energy is effectively transformed into the surface plasmons which propagate along the upper surface of the gold film and interact with the surrounding environment in a wide *** plasmonic resonance mechanism of the structure is discussed in detail by theoretical analysis and finite-difference time-domain *** optimizing the geometrical parameters,the designed structure shows the sensing performance with a refractive index sensitivity of 1006 nm/*** importantly,this plasmonic refractive index sensor achieves an ultra wide refractive index sensing range from 1.0 to 2.4 with a stable sensing *** promising simulation results of the structure show that the sensor has a broad application prospect in the field of biology and chemistry.

关键词： plasmonic sensor refractive index sensitivity figure of merit(FOM)

电感耦合等离子体原子发射光谱(ICP-AES)法测定高铁土壤中的铝

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中国无机分析化学 2019年第4期9卷 40-42页

作者：唐玉霜苏卫汉徐洪柳邓述培湖南省有色地质勘查研究院

采用碱熔再酸化分解样品,电感耦合等离子体原子发射光谱(ICP-AES)法测定高铁土壤中的铝(Al)元素。通过逐级扩大线性范围的方式,选取测定高含量Al的合适谱线;在标准中逐级加入铁基体,考察了铁基体浓度从20μg/mL到80μg/mL时对测定Al的... 详细信息

采用碱熔再酸化分解样品,电感耦合等离子体原子发射光谱(ICP-AES)法测定高铁土壤中的铝(Al)元素。通过逐级扩大线性范围的方式,选取测定高含量Al的合适谱线;在标准中逐级加入铁基体,考察了铁基体浓度从20μg/mL到80μg/mL时对测定Al的各谱线的干扰情况。用ICP-AES法对国家标准物质GSS-1、GSS-2、GSS-3、GSS-4、GSS-5进行测定,测定值与认定值的相对误差(RE)在-0.37%~0.31%,相对标准偏差(RSD,n=5)为0.26%~0.75%,获得了满意结果。

关键词： ICP-AES 高铁土壤铝

Effect of external magnetic field on the instability of THz plasma waves in nanoscale graphene field-effect transistors

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Chinese Physics B 2024年第4期33卷 683-689页

作者：张丽萍孙宗耀李佳妮苏俊燕 School of Sciences Lanzhou University of TechnologyLanzhou 730050China

The instability of plasma waves in the channel of field-effect transistors will cause the electromagnetic waves with THz *** on a self-consistent quantum hydrodynamic model,the instability of THz plasmas waves in the channel of graphene field-effect transistors has been investigated with external magnetic field and quantum *** analyzed the influence of weak magnetic fields,quantum effects,device size,and temperature on the instability of plasma waves under asymmetric boundary conditions *** results show that the magnetic fields,quantum effects,and the thickness of the dielectric layer between the gate and the channel can increase the radiation ***,we observed that increase in temperature leads to a decrease in both oscillation frequency and instability *** numerical results and accompanying images obtained from our simulations provide support for the above conclusions.

关键词： graphene field-effect transistors external magnetic field radiation frequency instability increment