Facile Fabrication of Hierarchical Porous N/O Functionalized Carbon Derived from Blighted Grains Towards Electrochemical Capacitors

The hierarchical porous N/O co-functionalized carbon(HPNOC)was scalably prepared by using the lowcost and renewable blighted grains as the raw material coupled with mild KHCO_3 activation for electrochemical capacitors(ECs).The elemental N was in situ doped in the obtained HPNOC without any N-containing additives.Remarkably,the obtained HPNOC was endowed with a large specific surface area(about 2 624m~2·g~(-1)),high pore volume(about 1.35cm~3·g~(-1)),as well as high-content N/O functionalization(about 1.9%(in atom)N and about 10.2%(in atom)O.Furthermore,the as-resulted HPNOC electrode with a high mass loading of 5mg·cm~(-2 )exhibited competitive gravimetric capacitances of about 373.6F·g~(-1 )at 0.5A·g~(-1),and even about 260.4F·g~(-1 )at a high rate of 10A·g~(-1);superior capacitance retention of about 98.8%at 1A·g~(-1 )over 10 000consecutive cycles;and high specific energy of about 9.6W·h·kg~(-1 )at a power of 500W·kg~(-1),when evaluated as a promising electrode in 6mol KOH for advanced electrochemical supercapacitors.More encouragingly,the green synthetic strategy we developed holds a huge promise in generalizing for other biomass-derived carbon materials for versatile energy-related applications.     

Local Path Planning and Tracking Control of Vehicle Collision Avoidance System

Automotive collision avoidance technology can effectively avoid the accidents caused by dangerous traffic conditions or driver's manipulation errors.Moreover,it can promote the development of autonomous driving for intelligent vehicle in intelligent transportation.We present a collision avoidance system,which is composed of an evasive trajectory planner and a path following controller.Considering the stability of the vehicle in the conflict-free process,the evasive trajectory planner is designed by polynomial parametric method and optimized by genetic algorithm.The path following controller is proposed to make the car drive along the designed path by controlling the vehicle's lateral movement.Simulation results show that the vehicle with the proposed controller has good stability in the collision process,and it can ensure the vehicle driving in accordance with the planned trajectory at different speeds.The research results can provide a certain basis for the research and development of automotive collision avoidance technology.     

H5飞机调油方法研究

对Ｈ５飞机经过了计算、论证、试飞，在此基础上提出了一种既安全又能充分发挥飞机飞行性能，同时又使动作程序化的调油方法－－规划调油法。用这种调油就可以大大地减少飞行员操纵飞机进的注意力分散，更利于集中精力操纵飞机，以保证飞行的安全。     

第二类对称三对角矩阵逆特征值问题及其应用

本文研究如下问题: 问题Ⅰ 给定n×2实矩阵X和实对角矩阵A=diag(λ_1,λ_2),求第二类n×n实对称三对角矩阵T使得TX=XA。 问题Ⅱ 给定第二类n×n实对称三对角矩阵(?),求第二类对称三对角矩阵(?)使得,其中S_T是问题Ⅰ的解集合。 本文给出了问题Ⅱ有解的充分必要条件,研究了问题Ⅱ解的存在性和唯一性,给出了问题Ⅰ和问题Ⅱ解的表达式,描述了求解问题Ⅰ和问题Ⅱ的数值方法,讨论了数值方法的应用,并给出了一些数值例子。     

高燃速丁羟推进剂配方研究

通过多种途径的试验,对高燃速丁羟推进剂配方进行了研究.试验结果表明,采用超细防结块氧化剂和液固组合燃速催化剂能使推进剂的燃速达到70mm/s以上(在6.864Mpa压强下);采用组合工艺助剂可改善推进剂工艺性能.本推进剂燃烧稳定,压强指数和温度敏感系数较低,力学性能良好,为高燃速推进剂的研制奠定了良好的基础.     

弹性机器人的LQG／LTR控制

ＬＱＧ／ＬＴＲ设计方法仅适合于最小相位系统，本文对单臂弹性机器人系统，进行适当的处理和对方法进行改进后，仍采用ＬＱＧ／ＬＴＲ方法设计控制器，得到的闭环系统有较强的鲁棒性。     

煤体变形局部化的梯度塑性理论研究

本文采用白光数字散斑相关方法对煤在单轴压缩下变形破坏进行研究,定量的测出了煤的变形局部化带宽度.并通过应变梯度塑性理论,在屈服函数中引入应变梯度二阶项.采用Drucker-Prager准则解析得出了煤试件的变形局部化带宽度公式并根据试验确定煤的材料内部长度.     

H∞控制及其应用

本文叙述了Ｈ∞控制器设计的频域法和代数法，在频哉法中介绍了标准问题的模型匹配解法和丁谱分解法；在代数法中介绍了多项式法，直接状态空间法，最后简述了几个实际应用的例子。     

C尺寸ⅤⅪbus主机箱的研制

介绍ⅤⅪｂｕｓ的关键部件──Ｃ尺寸主机箱样机的性能指标、研制主机箱的关键技术和所采取的措施。该主机箱已在某导弹仿真系统中应用。使用表明，功能正常、参数和仿真性能全部符合研制任务书的要求     

液氧/煤油发动机试车热敏电阻测温技术

在温度测量中,需要根据不同参数的测量要求,选择适合的温度传感器及相应的测量、校验、数据处理方法.本文介绍了在液氧/煤油发动机试车中,使用热敏电阻传感器进行液氧温度准确测量的技术.