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| 1 | A Correntropy-based Affine Iterative Closest Point Algorithm for Robust Point Set Registration显示文摘The iterative closest point(ICP)algorithm has the advantages of high accuracy and fast speed for point set registration,but it performs poorly when the point set has a large number of noisy outliers.To solve this problem,we propose a new affine registration algorithm based on correntropy which works well in the affine registration of point sets with outliers.Firstly,we substitute the traditional measure of least squares with a maximum correntropy criterion to build a new registration model,which can avoid the influence of outliers.To maximize the objective function,we then propose a robust affine ICP algorithm.At each iteration of this new algorithm,we set up the index mapping of two point sets according to the known transformation,and then compute the closed-form solution of the new transformation according to the known index mapping.Similar to the traditional ICP algorithm,our algorithm converges to a local maximum monotonously for any given initial value.Finally,the robustness and high efficiency of affine ICP algorithm based on correntropy are demonstrated by 2D and 3D point set registration experiments. | Hongchen Chen Xie Zhang Shaoyi Du Zongze Wu Nanning Zheng | 2019 | IEEE/CAA Journal of Automatica Sinica2019，6，4： | 3 |
| 2 | A theoretical investigation onthe structures, densities, detonation properties andpyrolysis mechanism of the nitroderivatives of toluenes 显示文摘 | Wang Guixiang Gong Xuedong Liu Yan Du Hongchen Xu Xiaojuan Xiao Heming | 2010 | Journal of Hazardous Materials2010，177，123： | 1 |
| 3 | Theoretical studies on the heats of formation, detonation properties, and py- rolysis mechanisms of energetic cyclic nitramines显示文摘 | Fang Wang GuixiangWang Hongchen Du | 2011 | J Phys Chem A2011，115，13： | 1 |
| 4 | Beam-focused SH wave transducer based on YSr_(3)(PO_(4))_(3)piezoelectric crystal for high temperature structural health monitoring显示文摘Guided-wave-based structural health monitoring(SHM)technology is of great importance for real-time inspection of high-temperature structures.The fundamental shear horizontal(SH_(0))wave is believed to be an ideal wave mode for developing SHM systems due to its nondispersive characteristics.However,currently very limited SH_(0)wave transducers can be used for SHM of high-temperature structures due to the limitation of materials.Herein,a novel YSr_(3)(PO_(4))_(3)(YSP)piezoelectric crystal in the space group I43d was grown.Experiments show that the face-shear piezoelectric coefficient d_(14)(d_(14)=d_(25)=d_(36))is 9.7 pC/N and varies little from 25 to 800℃.Then a beam-focused SH_(0)wave piezoelectric transducer is developed based on face-shear-mode YSP wafers.Both finite element simulations and experimental results indicate that the YSP-based transducer can excite pure SH_(0)wave and focus the wave energy along two opposite main directions.Especially,the obtained SH_(0)wave beam is highly concentrated with a small divergence angle of less than 30°,originating from the high working frequency range from 300 to 400 kHz.The excellent temperature stability of the as-grown YSP crystal makes the proposed SH_(0)wave piezoelectric transducer very suitable for SHM of high-temperature structures. | Yuehao Du Guangda Wu Fapeng Yu Hongchen Miao Xian Zhao | 2023 | Journal of Materiomics2023，9，3： | 0 |
| 5 | DFT Studies on Detonation Properties, Pyrolysis Mechanism, and Stability of the Nitro and Hydroxyl Derivatives of Benzene显示文摘苯的 91 nitro 和氢氧根衍生物在 B3LYP/6-31G 被学习吗?密度铺平功能的理论。爆炸性质用 Kamlet-Jacobs 方程被计算。三个候选人(pentanitrophenol, pentanitrobenzene,和 hexanitrobenzene ) 为他们的完美的爆炸表演和合理稳定性被推荐为潜在的高精力密度混合物。热分解机制被分析契约分离精力(BDE ) 和有邻近的 nitro 和氢氧根的为那些的反应组织的氢转移(HT ) 的激活精力(Ea ) 学习。结果证明 Ea 比所有契约的 BDE 低得多,那么当在一个分子有邻近的 nitro 和氢氧根组时,混合物的稳定性将减少,热分解将被 HT 过程开始。否则,热分解将从碎最弱的 CNO2 契约开始,并且仅仅在这下面调节 Mulliken 人口或 CNO2 契约的 BDE 能被用来估计混合物的相对稳定性。 | Du, Hongchen Liu, Hui Liu, Yan Zhang, Jianying Wang, Fang Gong, Xuedong | 2011 | Chinese Journal of Chemistry2011，29，3： | 0 |
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