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基于TRIZ冲突解决理论的配电箱接地电阻测量创新设计

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电工技术 2024年第16期 220-223页

作者：谷永强段豆豆邱帅燕增凯国网河北省电力有限公司建设公司河北石家庄050000 中国三峡新能源(集团)股份有限公司河北分公司河北石家庄050000

配电箱接地电阻测量对保护工作人员、提升供电质量起着至关重要的作用,针对其测量过程中易出现的测量不准确、有安全隐患等问题,以TRIZ理论为基础,对配电箱接地电阻测量进行问题分析,识别冲突问题,然后利用冲突矩阵和发明原理对问题进... 详细信息

配电箱接地电阻测量对保护工作人员、提升供电质量起着至关重要的作用,针对其测量过程中易出现的测量不准确、有安全隐患等问题,以TRIZ理论为基础,对配电箱接地电阻测量进行问题分析,识别冲突问题,然后利用冲突矩阵和发明原理对问题进行解决,并提出了多种设计方案,最后结合实际提出了一种配电箱接地电阻测量系统,提升了配电箱接地电阻测量准确性和安全性。

关键词：配电箱接地电阻 TRIZ冲突解决理论创新设计

Application of Optical Tweezers in the Research of Molecular Interaction between Lymphocyte Function Associated Antigen-1 and Its Monoclonal Antibody

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Cellular & Molecular Immunology 2007年第3期4卷 221-225页

作者： Haodong Chen Kuikui Ge Yinmei Li Jianguang Wu yongqiang gu Haiming Wei Zhigang Tian Institute of Immunology Hefei National Laboratory for Physical Sciences at Microscale and School of Life Sciences University of Science and Technology of China Hefei 230027 China Hefei National Laboratory for Physical Sciences at Microscale and Physics Department University of Science and Technology of China Hefei 230027 China

Lymphocyte function associated antigen-1 （CD11a/CD18, LFA-1） plays an important role in the structure of the immunological synapse and is required for efficient lysis of cytotoxic T lymphocytes （CTLs） and natural killer （NK） cells. To study the activation mode of LFA-1 on the NK cell surface, optical tweezers were used in the work. As an emerging technology, optical tweezers are widely used to manipulate microscopic objects and measure the forces of molecular interactions in the field of biological research. In our study, a new platform was constructed to study the single molecular behavior of receptor on cell surface using optical tweezers. Based on the platform, the interaction between an NK cell and a polystyrene microsphere coated with anti-LFA-1 antibody was observed. The result confirmed that the adhesion forces between an NK cell and a polystyrene bead were time-dependent. According to our findings, we propose that anti-LFA-1 antibody may cause the clustering of LFA-1 on NK cell surface. Cellular ＆ Molecular Immunology.

关键词： NK cell LFA- 1 optical tweezers polystyrene microsphere

The Inherent Law of the Unpredictability of Financial Asset Price Fluctuations: Multistability and Chaos

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Journal of Systems Science & Complexity 2024年第2期37卷 776-804页

作者： gu Enguo Huanghe University of Science and Technology Zhengzhou 450006China

This paper aims at understanding the price dynamics generated by the interaction of traders relying on heterogeneous expectations in an asset pricing *** the present work the authors analyze a financial market populated by five types of boundedly rational speculators-two types of fundamentalists,two types of chartists and trend followers which submit buying/selling orders according to different trading *** authors formulate a stock market model represented as a 2 dimensional piecewise linear discontinuous *** proposed contribution to the existing financial literature is two ***,the authors perform study of the model involving a 2 dimensional piecewise linear discontinuous map through a combination of qualitative and quantitative *** authors focus on the existence conditions of chaos and the multi-stability regions in parameter *** border collision bifurcation curves and basins of multi-attractors are also *** authors find that chaos or quasi-period exists only in the case of fixed point being a saddle(regular or flip)and that the coexistence of multiple attractors may exist when the fixed point is an attractor,but it is common for spiral and flip fixed points.

关键词： BCB curve chaos financial market heterogeneous agents multiple attractors piecewise linear discontinuous map

Yb2O3对Ti-1100铸态合金高温力学性能的影响

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材料导报 2020年第4期34卷 87-92页

作者：贾宝华刘翔顾永强李革内蒙古科技大学土木工程学院

采用钨电极非自耗电弧炉制备不同Yb 2O 3含量的Ti-1100铸态合金,利用高温炉配合WDW-300型电子万能试验机在温度为25~800℃、应变速率为10^-4~10^-2 s^-1下对合金进行压缩实验,研究了Yb2O3对Ti-1100合金力学性能的影响,并利用扫描电镜对... 详细信息

采用钨电极非自耗电弧炉制备不同Yb 2O 3含量的Ti-1100铸态合金,利用高温炉配合WDW-300型电子万能试验机在温度为25~800℃、应变速率为10^-4~10^-2 s^-1下对合金进行压缩实验,研究了Yb2O3对Ti-1100合金力学性能的影响,并利用扫描电镜对合金微观组织的变化和压缩断口样貌进行观察。结果表明:在Ti-1100合金中加入Yb 2O 3可明显提升屈服强度,当温度为25~600℃时,Yb2O3含量为0.45%(质量分数,下同)的合金的压缩屈服强度提升最为理想;当温度达到800℃时,Yb2O3的含量为0.60%的合金的压缩屈服强度提升最为理想。Yb2O3可明显细化Ti-1100合金晶粒,并且使得合金α片层间距得到细化。当Yb2O3含量为0.45%时,合金的塑性变形能力明显增强。

关键词： Yb2O3 Ti-1100合金高温力学性能

Ti-1100铸态合金的变形行为及本构模型研究

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稀有金属 2020年第10期44卷 1019-1028页

作者：贾宝华刘翔顾永强李革内蒙古科技大学土木工程学院内蒙古包头014010

采用高温炉配合WDW-300型电子万能试验机对Ti-1100铸态合金进行等温压缩实验,得到了合金在温度25~800℃、应变速率1×10-4~1×10-2s-1条件下的真应力-真应变曲线,分析了合金的变形行为,基于实验数据建立了本构模型。结果表明:Ti-1100合... 详细信息

采用高温炉配合WDW-300型电子万能试验机对Ti-1100铸态合金进行等温压缩实验,得到了合金在温度25~800℃、应变速率1×10-4~1×10-2s-1条件下的真应力-真应变曲线,分析了合金的变形行为,基于实验数据建立了本构模型。结果表明:Ti-1100合金在800℃时,流变应力在同一温度下随着应变速率的增加而增加,在25~600℃时流变应力随应变速率增加的变化相对800℃较小,在应变速率不变的前提下,屈服应力随着温度的升高而降低。利用真应力-真应变曲线基于Arrhenius双曲正弦本构模型建立了包含应变项,温度在25~800℃大温度范围的力学本构模型,对模型的计算值和实验值进行了比较,同时采用实验值与计算值的平均相对误差绝对值(AARE)定量检验所建本构模型的精度,验证了模型的可靠性。通过扫描电镜(SEM)对合金的断面和内部显微组织进行观察,发现合金在常温条件下,压缩断面为以河流花样的脆性断裂为主并在局部出现韧窝形状,合金内部的片状组织在高温情况下发生了明显的弯曲、折叠、间距变小。

关键词： Ti-1100铸态合金压缩变形本构模型应变速率

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小型风力发电机叶片的红外无损检测研究

中国测试 2023年第7期49卷 35-40页

作者：王晨顾永强内蒙古科技大学土木工程学院内蒙古包头014010

为获得风力发电机叶片现场红外无损检测的最佳光照条件,该文以赋有不同损伤类型及不同损伤程度的2 kW小型风力发电机叶片为研究对象,利用被动式红外热成像检测方式,在夏季光照充足的室外条件下对损伤叶片进行自然激励,采集红外热像图。... 详细信息

为获得风力发电机叶片现场红外无损检测的最佳光照条件,该文以赋有不同损伤类型及不同损伤程度的2 kW小型风力发电机叶片为研究对象,利用被动式红外热成像检测方式,在夏季光照充足的室外条件下对损伤叶片进行自然激励,采集红外热像图。研究结果表明光照强度对损伤检测有着极大的影响,并且得到风机叶片三种典型损伤的最佳检测光照条件,其中异物附着和面部损伤在午间光照强度达到1000 W/m^(2)及以上检测效果最佳,而裂纹损伤在晴朗的午后光照强度为900 W/m^(2)左右检测效果佳,从而证明利用太阳辐射作为发射源的被动式红外热成像检测技术来检测风机叶片损伤的方法在一定光照强度范围之内是可行的。

关键词：风力机叶片无损检测红外热成像损伤

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应用五轴离子束修正超高陡度镜面

光学学报 2015年第6期35卷 233-240页

作者：马占龙谷勇强彭利荣王高文中国科学院长春光学精密机械与物理研究所应用光学国家重点实验室吉林长春130033

为了验证离子束修正超高陡度镜面的能力,对采用五轴离子束加工超高陡度镜面的问题进行了分析研究和加工实验。根据现有检测条件制定了实验方案并对面形数据进行了处理;对超过机床五轴加工摆轴行程区域的驻留时间进行了补偿;建立了离子... 详细信息

为了验证离子束修正超高陡度镜面的能力,对采用五轴离子束加工超高陡度镜面的问题进行了分析研究和加工实验。根据现有检测条件制定了实验方案并对面形数据进行了处理;对超过机床五轴加工摆轴行程区域的驻留时间进行了补偿;建立了离子束五轴加工后置处理算法,根据该算法编制了数控程序生成软件,并通过实验验证了生成的数控程序的正确性;最后进行了超高陡度镜面的五轴离轴加工实验,经过5轮迭代加工后,元件面形由初始的峰谷(PV)值为57.983 nm、均方根(RMS)值为9.406 nm,收敛PV值为11.616 nm、RMS值为1.306 nm,总收敛比达到7.20。实验结果表明:采用五轴离子束加工超高陡度镜面的方案可行,并且获得了较高的收敛效率和加工精度,同时验证了离子束离轴镜加工的可行性。

关键词：光学制造离子束超高陡度面形修正

Volume of fluid simulation of single argon bubble dynamics in liquid steel under RH vacuum conditions

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Journal of Iron and Steel Research International 2024年第4期31卷 828-837页

作者： gu-jun Chen Sheng-ping He College of Materials Science and Engineering Yangtze Normal UniversityChongqing 400044China College of Materials Science and Engineering Chongqing UniversityChongqing 400044China

Single argon bubble dynamics in liquid steel under Ruhrstahl-Heraeus(RH)vacuum conditions were simulated using the volume of fluid method,and the ideal gas law was used to consider bubble growth due to heat transfer and pressure *** simulation with a constant bubble density was also performed to validate the numerical method,and the predicted terminal bubble shape and velocity were found to agree with those presented in the Grace diagram and calculated by drag correlation,*** simulation results under RH conditions indicate that the terminal bubble shape and velocity cannot be *** primary bubble growth occurs within a rising distance of 0.3 m owing to heating by the high-temperature liquid steel;subsequently,the bubble continues to grow under equilibrium with the hydrostatic *** the initial diameter is 8-32 mm,the bubble diameter and rising velocity near the liquid surface are 80-200 mm and 0.5-0.8 m/s,*** bubble rises rectilinearly with an axisymmetric shape,and the shape evolution history includes an initial sphere,(dimpled)ellipsoid,and spherical cap with satellite bubbles.

关键词： Bubble dynamics Liquid steel Volume of fluid Bubble growth Bubble shape Rising velocity

Ultra-simplified diffraction-based computational spectrometer

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Light(Science & Applications) 2024年第6期13卷 1022-1031页

作者： Chuangchuang Chen Honggang gu Shiyuan Liu State Key Laboratory of Intelligent Manufacturing Equipment and Technology Huazhong University of Science and TechnologyWuhanHubei430074China Optics Valley Laboratory WuhanHubei430074China

Miniaturizing spectrometers for compact and cost-effective mobile platforms is a major challenge in current spectroscopy research,where conventional spectrometers are impractical due to their bulky *** miniaturized designs primarily rely on precalibrated response functions of nanophotonic structures to encode spectral information captured in a snapshot by detector *** spectrum reconstruction is achieved through computational techniques,but this requires precise component design,high-precision fabrication,and *** propose an ultra-simplified computational spectrometer that employs a one-to-broadband diffraction decomposition strategy facilitated by a numerical regularized transform that depends only on the spectrum of the diffracted *** key feature of our design is the use of a simple,arbitrarily shaped pinhole as the partial disperser,eliminating the need for complex encoding designs and full spectrum *** spectrometer achieves a reconstructed spectral peak location accuracy of better than 1 nm over a 200 nm bandwidth and excellent resolution for peaks separated by 3 nm in a bimodal spectrum,all within a compact footprint of under half an ***,our approach also reveals a breakthrough in broadband coherent diffractive imaging without requiring any prior knowledge of the broadband illumination spectrum,assumptions of non-dispersive specimens,or correction for detector quantum efficiency.

关键词： simplified spectrum illumination