作者：王义遒，李和章，马陆亭，王晓阳，蔡文鹏 （北京大学；北京理工大学；中国教育科学研究院；首都师范大学；清华大学）

出处：江苏高教 2023

作者：Xiaohuan Mo¹; & Xiaoyang Wang²; （¹Key Laboratory of Pure and Applied Mathematics, School of Mathematical Sciences, Peking University, Beijing, 100871, China;²School of Mathematics and Statistics, Beijing Institute of Technology, Beijing, 100081, China）

出处：Science China Mathematics

关键词：Finsler metric;Finslerian quantity;\(\hat T\)-curvature;Θ-curvature;Randers metric

摘要：In this paper, we study a new Finslerian quantity \(\hat T\) defined by the T-curvature and the angular metric tensor. We show that the \(\hat T\)-cur ...

作者：Xiaohuan Mo¹;，Xiaoyang Wang²; （¹Key Laboratory of Pure and Applied Mathematics, School of Mathematical Sciences,Peking University；²School of Mathematics and Statistics, Beijing Institute of Technology）

出处：Science China(Mathematics) 2024

摘要：In this paper, we study a new Finslerian quantity ■ defined by the T-curvature and the angular metric tensor. We show that the ■-curvature not only gi ...

作者：LI Ying¹;，MO Xiao-huan²;，WANG Xiao-yang³; （¹Department of Applied Mathematics,Zhejiang University of Technology；²Key Laboratory of Pure and Applied Mathematics,School of Mathematical Sciences,Peking University；³School of Mathematics and Statistics,Beijing Institute of Technology）

出处：Applied Mathematics:A Journal of Chinese Universities 2024

关键词：gradient Ricci soliton；navigation Finsler metric；isotropic S-curvature；Ricci curvature；Gaussian shrinking soliton

摘要：In this paper, we study a class of Finsler metrics defined by a vector field on a gradient Ricci soliton. We obtain a necessary and sufficient conditi ...

作者：王晓阳，Nehus T，de Riese，W. T. W. Filleur s （北京理工大学）

出处：中国激光 2008

关键词：光动力学疗法；肿瘤组织；治疗方法；全身性疾病；光敏剂；吸收光谱；正常组织；激光照射

摘要：背景 光动力学疗法(PDT)是一种治疗癌症的新方法。它基于两个因素,一个是光敏剂,另一个是与这种光敏剂吸收光谱相匹配的相应波长的光。光敏剂注入人体并代谢一段时间后,在肿瘤组织中的浓度要比在正常组织中高,此时若用相应波长的激光照射患处,可对肿瘤组织进行靶破坏。PDT的主要优点是它可以重复若干次而无不良 ...