Robust state-feedback control design for active suspension system with time-varying input delay and wheelbase preview information

This paper develops a robust state-feedback controller for active suspension system with time-varying input delay and wheelbase preview information in the presence of the parameter uncertainties. By employing system augmentation technique, a multi-objective control optimization model is first established and then this controller design is converted to a static full-state feedback controller design with robust H_∞ and generalized H₂ performance, wherein the model-dependent control gain is evaluated by transforming the related nonlinear matrix inequalities into their corresponding linear matrix inequality forms based on Lyapunov theory, and then LMI (Linear-Matrix-Inequality) technique is applied to solve and obtain the desired controller. A numerical simulation case is finally provided to reveal the effectiveness and advantages of the proposed controller.     

在全区科技大会上的讲话

全区科技大会圆满完成各项议程，今天就要结束了。这次大会是在我区经济社会发展的关键时期召开的一次重要会议。会议时间虽短，但成果丰硕，对我区的科技进步与创新具有里程碑意义，必将极大地推进我区全面小康社会和构建社会主义和谐社会的伟大进程。     

建立和完善工作机制加强我区知识产权保护力度--在自治区保护知识产权领导小组第一次工作会议上的讲话

同志们：成立自治区保护知识产权领导小组，充分体现了自治区政府对保护知识产权工作的高度重视。今天我们在这里召开自治区保护知识产权领导小组成立以来的第一次工作会议，其目的是统一思想，提高认识，进一步明确工作任务，从而确保更好地承担起领导和协调我区保护知识产权工作，推动保护知识产权工作形成合力，按照法制化、规范化、科学化的要求，     

那曲地区近五十年气温变化分析

气温是气候变化的重要特征之一，本文通过对那曲地区七个观测站近五十年气温资料的分析，揭示那曲地区气温变化规律。     

Optimizing the Aspect Ratio of Cephalexin in Reactive Crystallization by Controlling Supersaturation and Seeding Policy

Batch crystallization in acidic aqueous solution of cephalexin was conducted by reactive crystallization with or without seeding. Supersaturation was generated by mixing ammonia and acidic aqueous solution of cephalexin and controlled by solution feeding rate and seeding conditions. UV and Morphologi G3 were used to measure supersaturation and aspect ratio. Experimental results demonstrated that burst nucleation occurred and the products were needle-like at high supersaturation; meanwhile, the products were plate-like and had high aspect ratio at low supersaturation. Analysis of the measured supersaturation profiles and corresponding aspect ratio explained the mechanisms governing the aspect ratio. The optimized operating parameters were also proposed(seeding supersaturation is equal to 1.3, seed mass ratio 8% and feeding rate 368 μL/min).     

Adolescent emotion scale for online lessons: A study from Turkey

Education and Information Technologies - People’s day-to-day routines have changed drastically since the outbreak of the COVID-19 pandemic. One of the changes to take place has been the...     

西藏昌都地区气象局信息中心综合防雷工程的设计

根据GB50057—94（建筑物防雷设计规范）,GB50343—2004（建筑物电子信息系统防雷技术规范）《气象信息系统雷击电磁脉冲防护规范》QX3—2000等规范,结合现场勘测的数据和资料,对西藏昌都地区气象局的信息中心机房进行雷电风险评估和综合防雷工程的设计。     

新时期的俄罗斯高等教育

苏联的解体不仅给新时期的俄罗斯带来经济和政治上的骤变,而且也深深地影响了俄罗斯人民的文化、科学、教育等方面的生活。作为教育大国的俄罗斯不仅出现了高等教育领域中前所未有的许多新现象,并且还遭遇了许多未曾预见的新问题。     

增强自主创新意识开创我区知识产权工作新局面

同志们： 近年来,我区的知识产权工作,在自治区党委、政府的正确领导和国家有关部委的关心支持下,广泛宣传,完善法制,加大执法力度,不断增强企业知识产权自我保护意识,极大地激发了人们发明创造的热情,有力地推动了经济发展和社会进步,维护了广大权益人的切身利益和正当权益.在此,我谨代表自治区人民政府,向辛勤工作在知识产权战线上的同志们表示亲切的问候!向关心和支持知识产权事业的各界朋友们表示衷心的感谢!