flight相关论文
Rapid Screening of 26 Organophosphorus Pesticides in Fresh Milk by Ultra Liquid Chromatography Coupl
[Objectives]A rapid screening and analysis method for 26 organophosphorus agrochemicals in fresh milk was established us......
This paper investigates the networked flight control system for a laboratory 3 degrees of freedom (3-DOF) helicopter,and......
Effect of a near-zero magnetic field on development and flight of oriental armyworm(Mythimna separat
The geomagnetic field affects all living organisms on the Earth.In this study we investigated the developmental and beha......
In air traffic and airport management,experience gained from past operations is crucial in designing appropriate strateg......
Turboprop engine has the advantages of high efficiency and high thrust, but it has not been widely used in the civil fie......
Research on a full envelop controller for an unmanned ducted-fan helicopter based on switching contr
Rotor and ducted-fan structured unmanned helicopters have shown energy efficiency in low flight speed and hovering, due ......
Suggested closed-loop response characteristics for tanker in aerial refueling via mission-oriented e
The flight control law design for tanker should ensure that the closed-loop response can meet the aerial refueling missi......
A linear random search algorithm(LRSA) is developed to determine the critical value of takeoff weight limited to the saf......
As human aeronautic and aerospace technology continues to prosper and the aerial flight space domain further expands,tra......
The fall armyworm (FAW),Spodoptera frugiperda (Lepidoptera: Noctuidae),has invaded many countries in Africa and Asia sin......
说起风车,也许很多人都会想到唯美异常的荷兰风车,还会有人想到赏心悦目的风车扣篮,但当这双FLIGHT WINDMILL出现在眼前时,你又会......
对亚洲小车蝗能源物质含量和消耗情况及种群密度对能源物质含量的影响进行了研究。结果表明，能源物质含量随成虫日龄的增加而发生变......
目的：了解涉及航班上的出诊总体情况和特点，出诊为机场急救力量的配备提供事实依据，为机场医疗救护人员的培训提供参考依据，促进机场应......
目的:随着高性能战斗机的快速发展并批量装备部队投入使用,因其高过载、高过载增长率、高认知负荷等特性导致的飞行事故的比例逐渐......
摩擦等外界干扰,系统不确定性信息及参数变化对飞行仿真转台的运行造成不利影响。针对该问题,提出基于模糊干扰观测器(Fdo)的自适......
阐述了PIDA控制概念及特点,提出了基于PIDA策略的飞行器再入控制方法。以HL-20载人返回飞行器为例,结合PIDA控制的低模型依赖、简......
Migratory flight of insect pests within a year-round distribution:European corn borer as a case stud
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
The Flight Dynamics of Tapejara, a Pterosaur From the Early Cretaceous of Brazil with a Large Crania
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
The Importance of Flapping Kinematic Parameters in the Facilitation of the Different Flight Modes of
To better understand dragonflies’remarkable flapping wing aerodynamic performance,we measured the kinematic parameters ......
This paper proposes a method of using multi-controllers to control supermaneuverable aircraft. A nonlinear dynamic-inver......
The Flight Dynamics of Tapejara, a Pterosaur From the Early Cretaceous of Brazil with a Large Crania
...
Echolocation calls of Myotis frater emitted during the search phase consist of brief frequency-modulated pulses. The sou......
为构建大型、逼真的模拟训练战场环境,分析了Genesis仿真软件的特点,描述了基于Genesis的飞行模拟视景仿真系统组成及主要功能。重......
The fall armyworm(FAW),Spodoptera frugiperda(Lepidoptera:Noctuidae),has invaded many countries in Africa and Asia since ......
Adult nutrition affects reproduction and flight performance of the invasive fall armyworm,Spodoptera
Floral resources,such as carbohydrate-rich nectar or pollen,can bolster fitness and raise reproductive output of adult l......
In late 2018,the fall armyworm(FAW)Spodoptera frugiperda Smith(Lepidoptera:Noctuidae)made its arrival in China and its p......
近年来,非定常气动力引起的飞行失控在造成民机空难事故诸因素中名列前茅,已经成为困扰国际民用航空运输发展的一个聚焦点.大气飞......
通过载荷地面校准试验建立载荷模型是应变法飞行载荷准确测量的基础,为高效准确地建立载荷模型,在对应变法飞行载荷测量原理分析的......
为了解天敌昆虫伞裙追寄蝇（Exorista civilis Rondani.）的飞行规律,本文采用吊飞试验及相关生理生化方法,研究了不同日龄伞裙追寄蝇......
ＭＥＴＨＯＤＯＦＥＶＡＬＵＡＴＩＮＧＡＩＲＣＲＡＦＴＴＯＲＳＩＯＮＡＬＡＧＩＬＩＴＹＭＥＴＲＩＣＵＳＩＮＧＰＩＬＯＴＴＲＡＮＳＦＥＲＦＵＮＣＴＩＯＮＭＯＤＥＬＨｕａｎｇＰｅｎｇｎｉａｎ（ＤｅｐａｒｔｍｅｎｔｏｆＡｅｒｏｄｙｎａｍｉｃｓ，ＮＵＡＡ２９Ｙ.........
为了改善自适应卡尔曼滤波的数值稳定性和计算效率,防止滤波发散,本文在自适应推广卡尔曼滤波的基础上,利用U-D分解滤波,提出一种U......
本文首先对空天飞行器的基本含义进行概述,从设计、飞行范畴、其他因素三个方面,对吸气式空天飞行器控制难点进行解析,并以此为依......
利用26路飞行磨系统对不同温度条件下玉米象成虫的飞行能力进行吊飞研究.试验温度设置为22、25、28、31、34℃,相对湿度55%~60%,光......
目的了解长期飞行对人体血液系统有无影响.方法采用MEK-5108K血细胞分析仪,对82名健康疗养飞行人员进行了16项血细胞指标检测,并与......
引力搜索算法（gravitational search algorithm，GSA）是模拟万有引力定律进行搜索的一种新颖的优化算法，已有研究表明GSA算法相比一些传......
干涉合成孔径雷达测量技术是近年来发展起来的一种新技术。机载InSAR测绘系统在国内还处在研制阶段。其测绘能力以及测图精度以前......
APPLICATION OF DIRECT BTT GUIDANCE LAW BASED ON NONLINEAR INVERSE SYSTEM THEORY TO INTEGRATED FIRE／F
ＡＰＰＬＩＣＡＴＩＯＮ ＯＦ ＤＩＲＥＣＴ ＢＴＴ ＧＵＩＤＡＮＣＥ ＬＡＷ ＢＡＳＥＤ ＯＮ ＮＯＮＬＩＮＥＡＲ ＩＮＶＥＲＳＥ ＳＹＳＴＥＭ ＴＨＥＯＲＹ ＴＯ ＩＮＴＥＧＲＡＴＥＤ ＦＩＲＥ／ＦＬＩＧＨＴ ＳＹＳＴＥＭＳ（ＩＦＦＳ）ＭａＸｉａｏ.........
ＡＭＥＴＨＯＤＦＯＲＣＡＬＣＵＬＡＴＩＮＧＫＩＮＥＭＡＴＩＣＰＡＲＡＭＥＴＥＲＳ ＯＦＨＥＬＩＣＯＰＴＥＲＩＮＬＯＯＰＡＮＤＲＯＬＬＭＡＮＥＵＶＥＲＳＣａｏＹｉｈｕａ；ＧａｏＺｈｅｎｇ（ＤｅｐａｒｔｍｅｎｔｏｆＡｉｒｃｒａｆｔＥｎｇｉｎｅｅｒｉｎｇ．.........
Quantification of the impact of TOF and PSF on PET images using the noise-matching concept: clinical
This study was to assess quantitatively the accuracy of 18F-FDG PET/CT images reconstructed by TOF+PSF and TOF only, con......
Free electron lasers provide high-power and ultrashort pulses with extreme brightness. In order to improve a facility’s......
Beam position monitors as precise phase pickups for beam energy measurement at the Compact Pulsed Ha
The 13-MeV proton linac of the Compact Pulsed Hadron Source (CPHS) at Tsinghua University, China, is composed of a 50-ke......
The fault diagnosis and accommodation strategy for a class of linear parameter-varying (LPV) systems were investigated. ......
简要介绍航空轮胎充气尺寸、尺寸公差、胀大尺寸、与飞机相邻部件间最小允许间隙、并串装轮胎最小间隙及机轮与飞机相邻部件间距等......
跨大气层飞行器在爬升过程中飞行参数及质量特性变化剧烈,因而飞行器的操纵稳定特性也相应迅速变化。各种干扰因素的影响对飞行控......
A fluid flow model consisting of Bernoulli’s law in its normal form, the equation of state of air, and the cross-stream......
飞机综合电子对抗系统在现代空战中起到重要作用,能正确操纵、使用综合电子对抗系统,能极大提高飞机在作战中的生存能力,因此,综合......
针对某飞机飞行数据碰记录器体积大、重量重以及价格昂贵的缺点，设计了一种新型飞行数据固态记录器。介绍了新型飞行数据固态记录器......
为提高沥青搅拌设备烘干筒的传热效果,掌握烘干筒叶片对石料抛撒特性的影响,以4 000型烘干筒为研究对象,对筒内石料的运动轨迹进行......
