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| 1 | Uniform Coverage of Fibres over Open-contoured Freeform Structure Based on Arc-length Parameter显示文摘这篇文章使用弧长度参数路径计划在开轮廓的结构上执行机器的纤维放置(RFP ) 。这允许由更简单的算术用一个相同数学方程和计算代表起始的路径和偏移量点。在古典微分几何学的帮助下,放纤维的路径的计算可以在参量的域(参量地定义的模子表面) 或在 3D 空格(含蓄地定义的模子表面) 被归结为一阶的平常的微分方程的起始值的问题的答案,显著地从而在存在方法上改善。与常规方法相比,除它的计算简洁以外,建议方法在计算起始的路径和偏移量点有更好的错误控制机制。数字实验也被执行在合成形成的进程并且也表明新方法的可行性它在计算机的潜在的应用程序用机器制造的数字控制(计算机数值控制) ,表面修剪,和另外的工业惯例。 | Wang Xiaoping An Luling Zhang Liyan Zhou Laishui | 2008 | Chinese Journal of Aeronautics2008，21，6： | 7 |
| 2 | Two-stage open-loop velocity compensating method applied to multi-mass elastic transmission system显示文摘In this paper,a novel vibration-suppression open-loop control method for multi-mass system is proposed,which uses two-stage velocity compensating algorithm and fuzzy I + P controller. This compensating method is based on model-based control theory in order to provide a damping effect on the system mechanical part. The mathematical model of multi-mass system is built and reduced to estimate the velocities of masses. The velocity difference between adjacent masses is calculated dynamically. A 3-mass system is regarded as the composition of two 2-mass systems in order to realize the two-stage compensating algorithm. Instead of using a typical PI controller in the velocity compensating loop,a fuzzy I + P controller is designed and its input variables are decided according to their impact on the system,which is different from the conventional fuzzy PID controller designing rules. Simulations and experimental results show that the proposed velocity compensating method is effective in suppressing vibration on a 3-mass system and it has a better performance when the designed fuzzy I + P controller is utilized in the control system. | Zhang Deli Yang Haiqiang An Luling | 2014 | Chinese Journal of Aeronautics2014，27，1： | 3 |
| 3 | Constructing G^2 Continuous Curve on Freeform Surface with Normal Projection显示文摘This article presents a new method for G~2 continuous interpolation of an arbitrary sequence of points on an implicit or parametric surface with prescribed tangent direction and curvature vector,respectively,at every point.First,a G~2 continuous curve is constructed in three-dimensional space.Then the curve is projected normally onto the given surface.The desired interpolation curve is just the projection curve,which can be obtained by numerically solving the initialvalue problems for a system of first-order ordinary differential equations in the parametric domain for parametric case or in three-dimensional space for implicit case.Several shape parameters are introduced into the resulting curve,which can be used in subsequent interactive modification so that the shape of the resulting curve meets our demand.The presented method is independent of the geometry and parameterization of the base surface.Numerical experiments demonstrate that it is effective and potentially useful in numerical control (NC) machining,path planning for robotic fibre placement,patterns design on surface and other industrial and research fields. | Wang Xiaoping,An Luling,Zhou Laishui,Zhang Liyan Jiangsu Key Laboratory of Precision and Macro-manufacturing Technology,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China | 2010 | Chinese Journal of Aeronautics2010，23，1： | 3 |
| 4 | Erratum to 'Uniform Coverage of Fibres over Open-contoured Freeform Structure Based on Arc-length Parameter' [Chinese Journal of Aeronautics 21(2008)571-577]显示文摘It is regretted that the author corrections requested at the proof stage were not made accurately. There are some incorrect typings in two equations which will lead to inaccurate results if readers perform calculations directly | Wang Xiaoping An Luling Zhang Liyan Zhou Laishui | 2009 | Chinese Journal of Aeronautics2009，22，3： | 2 |
| 5 | Characterization of the estrogenic response to genistein in Japanese medaka (Oryzias latipes) 显示文摘 | ZHANG Luling KHAN I A FORAN C M | 2002 | Comparative Biochemistry Physiology Part C2002，132，： | 1 |
| 6 | Real-time quantitative PCR assay for rapid detection of murine virus contamination in bioproducts显示文摘Dear Editor,For decades,contaminated and misidentified cell lines in biological research remains a serious problem which the researchers call it'identity crisis'(Masters J R,2009).As reported in March 15,2010 by U.S.Food | Luling Guo Zhe Zhang Rui Gong Gengfu Xiao | 2014 | Virologica Sinica2014，29，3： | 1 |
| 7 | Photodynamic Therapy for Advanced Gastric Cancer: A Case Report显示文摘Background and Study Aims:To observe the efficacy of photodynamic therapy in patients with advanced gastric cancer and analyze the reasons affecting the efficacy.Methods:In this paper,a patient with advanced gastric cancer in our hospital was selected.HoPorfin is used as a photosensitizer and photodynamic therapy was performed 48 hours and 72 hours later.Results:One month after the photodynamic treatment,the patient came to our hospital to reexamine the gastroscope.Through the comparison of gastroscopy before and after the photodynamic treatment,the gastric cancer lesion of the patient after the photodynamic treatment was not significantly smaller than before,and the effect of photodynamic treatment was not ideal.Conclusion:The four reasons for the unsatisfactory effect:individual differences of patients,photosensitizer,light source and oxygen. | Hongyan Zhang Lule Wu Xiaoxiong Hu Jianwen Sheng Yuwen Wu Huizhen Fan | 2021 | Journal of Clinical and Nursing Research2021，5，2： | 0 |
| 8 | Unconventional dislocation starvation behavior of medium-entropy alloy single crystal pillars containing pre-existing dislocations显示文摘The excellent dislocation storage ability of bulk multi-principal element alloys(MPEAs)has been widely reported.To date,however,the underlying mechanisms of dislocation escape behavior in small-size facecentered cubic(FCC)MPEAs have rarely been studied.Here,we quantitatively control the initial dislocation densities(-10^(15) m^(-2) and -10^(16) m^(-2))by large-scale molecular dynamics(MD)simulations and perform uniaxial compression simulations to compare the dislocation starvation behavior of CrCoNi with pure Cu single crystal pillars(SCPs).The analysis reveals that the CrCoNi SCPs with low initial dislocation density(-10^(15) m^(-2))can continuously accommodate mobile dislocations,and the critical dimension for dislocation starvation is about 30 nm.In particular,the CrCoNi SCPs with chemical short-range ordering(SRO)exhibit better dislocation storage and multiplication abilities than the random solid solution(RSS)samples even when the initial dislocation density is low.However,the presence of a large number of pre-existing dislocation locks governs the strong dislocation multiplication ability of the small-size RSS CrCoNi SCPs,in obvious contrast to the deformation of all pure Cu SCPs which is completely dominated by intermittent mobile dislocation starvation.Most importantly,we reveal the fundamental physics for the good dislocation storage of CrCoNi SCPs at small sizes from the perspective of chemical heterogeneity.The new phenomena reported in this work provide a unique atomic-scale perspective for understanding the microscopic physical origin of the mechanical behavior of MPEAs and the discovery of extremely slow dislocation escape behavior in small-scaled pillars,providing a reliable basis for the development of the dislocation starvation model. | Luling Wang Bin Liu Jianqiu Zhou Yang Cao Feng Zhang Yonghao Zhao | 2023 | Journal of Materials Science & Technology2023，，11： | 0 |
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