Neurological diseases are some of the most frequently encountered diseases in medicine. Neurology has alwayeen independently and widely learned by medical students across the globe. In recent years，an increasing number of foreign students have arrived in China and enrolled in the Bachelor of Medicine programs. Unfortunately，it is often difficult for medical students to learn the plexities of neurologic anatomy and physiology. Thus，it is imperative and highly benefi to tailor an English text book of Neurology for an undergraduate program that is designed for international students. Recently，supported and organized by Tsinghua University Press and Tianjin Medical University，many Neurology experts and scholars have made contributions to this textbook，which iased entirely on the structure and profile of °Netter ˉs Neurology，± written by Professor H. Royden Jones，Jr.，M.D.，et al. and published by Elsevier Saunders. The contents of °Netter ˉs Neurology ± are presented using vivid pictures

《塑性力学基础（第3版）》介绍了塑性力学的基本理论和研究各种塑性力学问题的基本方法，主要内容有：应力和应变；屈服条件；塑性本构关系（增量理论和全量理论）；简单的弹塑性问题（弯曲梁、扭转圆轴、受压球壳、厚壁圆筒、旋转圆盘）；理想刚塑性平面应变问题；塑性极限分析和安定分析原理；典型结构（梁、刚架、薄板、薄壳）的极限分析；率相关塑性本构关系。《塑性力学基础（第3版）》兼顾理论严密性和工程应用的特点，从求解工程问题的需求出发对所涉及的基本概念和基本理论给出清晰且严谨的阐述，略去过于繁琐且不影响具体问题求解的理论推导，并尽量选择典型的工程应用中的塑性力学问题进行举例说明，其宗旨在于将经典塑性力学中重要的基础知识介绍给读者。《塑性力学基础（第3版）》可作为工程力学、结构分析、材料、机械、土

其一，决定文章质量的是研究能力，而不是文字水平；其二，好文章是改出来的，改比写更难。