查询词典 with system
- 与 with system 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
First, the S-CDMA-HFC system with integrated traffic is introduced and the method of traffic integration is given. Second, the upstream channel capacity of the S-CDMA-HFC system with integrated traffic that has the same rate is analyzed. The chronoff limit and Gaussian approximate equation of the upstream channel cutoff probability are derived. Third, the impact of the selection of the line transmission rate on the upstream channel capacity of the S-CDMA-HFC system with integrated traffic is discussed in detail. The cutoff probability and throughout equations of the upstream channel with different integrated traffic are derived. Fourth, the impact of the power control error on the capacity is discussed. Results show that the power control error will degrade the upstream channel capacity and have different influence on the different traffic. Finally, the capacity requirement of the initialization process is raised. Analytical results show that the initialization process will impact on the capacity slightly.
首先,简单介绍了综合业务S-CDMA-HFC系统,给出了业务综合的方法;然后,分析了具有相同码率的综合业务条件下的S-CDMA-HFC系统上行信道容量,导出上行信道中断概率的切尔诺夫上限和高斯近似公式;然后,详细讨论了基本传输速率的选择对综合业务S-CDMA-HFC系统上行信道容量的影响,导出了不同业务综合条件下上行信道的中断概率和吞吐量公式;然后,讨论了功率控制误差对综合业务S-CDMA-HFC系统上行信道容量的影响,结果表明功率控制误差会使上行信道容量下降,且对不同业务的影响程度是不同的;最后给出了初始接入的容量要求,分析结果表明初始接入将对综合业务S-CDMA-HFC系统上行容量带来影响,但不明显。
-
1Niche construction can lead to stable coexistence of diverse genotypes in spatially structured population, which supports a stable polymorphism even without heterozygote superiority.(2)With habitat deterioration, niche construction accelerates the formation of steady polymorphism and hence impedes the harmful influences of environment on the population, which might embody a life-history strategy of organism under the unfavorable environment.(3)Niche construction results in the coexistence with alternative polymorphism through genotype-environment feedback and limited gene flow.(4)The niche-constructing organism is an active force to alter its environment and hence the direction of natural selection in order to better survival.(5)Spatial dynamics and distribution pattern of metapopulation are profoundly influenced by time-lagged niche construction.(6)Metapopulation size can reach a fixed level in the recency effect and equal weighting of time lag but is statistical stability in primacy effect, which implies the primacy effect is most remarkable.(7)The increment in the relative weightingof each generation\' niche construction and the length of time lag are significant factors for system destabilization.(8)Moderate capacity of positive niche construction benefits the metapopulation persistence.(9)The narrowing of niche breadth can decrease the metapopulation size and thereby increase the extinction risk.(10)The coupled function of time lag and niche construction make the system oscillation and generate the spiral wave, spiral-broken and circular wave in heterogeneous habitat.The spatial distributions of metapopulation and resource content are complementary due to a phase lag of their both frequencies.(12)Metapopulation persistence with niche construction depends not only on the balance between colonization and extinction, but also on the balance between the ability of niche construction and natural dissipation of habitat.(13)Metapopula-tion can survive under certain condition when the percent of suitable patches in habitat is lower than the ration of extinction to colonization.(14)Two thresholds exist in the process of transition of habitat quality dynamics from unsuitable to suitable, which include the intensity of niche construction and the initial condition of system.(15)Metapopulation size is positive correlated with the ability of positive niche construction, which means that organism or population who has strongly positive influences on their environment plays an important role to maintain the available habitat.
通过上述几个方面的研究,主要得出以下15条结论:(1)生态位构建可使空间结构种群,甚至是在没有杂合子优势的条件下,形成多种可能的稳定基因型分布模式;(2)随着环境的破坏与恶化,种群的生态位构建作用加速其较早形成稳定多态以阻碍环境对种群的不利影响,解释了有机体在不利环境下的一种生活史对策;(3)生态位构建作用通过基因型—环境反馈机制及有限的基因交流导致基因型多态的稳定共存;(4)有机体的生态位构建作用是一种积极的动力改变环境进而改变其自然选择的方向;(5)生态位构建的时滞作用对集合种群动态和空间分布产生深刻影响;(6)集合种群大小在时滞的崭新效应和等权重效应下达到一固定值,而在首位效应下达到统计稳定,表明首位效应的影响最显著;(7)首位效应下生态位构建相对权重的增量和时滞的长度是影响系统不稳定性动态的关键因素;(8)适中的生态位构建强度有利于集合种群的续存;(9)生态位宽度变窄会减少集合种群的数量从而增加其灭绝风险;(10)时滞和生态位构建的双重作用使系统产生周期振荡,并在异质性环境中产生稳定的螺旋波,破碎的螺旋波和环形波三种分布模式;(11)集合种群与资源含量的空间分布因为相滞而互补;(12)具有生态位构建的集合种群续存不仅取决于侵占率与灭绝率之间的平衡,而且依赖于生态位构建能力同其生境的自然消耗速率之间的妥协;(13)当生境中适合侵占的斑块比例小于其侵占率与灭绝率之比时,生态位构建作用促使集合种群在一定条件下续存:(14)生境斑块的状态从不适合到适合转变过程中存在生态位构建强度和系统初始条件这两个阈值;(15)集合种群的大小同正生态位构建能力正相关,意味着对环境具有较强正作用的有机体对维持有效生境起积极作用。
-
There is a small action range in archery.Simple methods and analysis is inadequate,so the author,on the basis of testing the archery athletes in national team with the Qualisisy infrared photoelectric testing system,Footscan sole pressure testing system,Noraxon myoelectricity remote testing system, etc,analyzes comprehensively the action technique of the athletes in national team from the posture,body motion characteristics,body posture equilibrium and stability,distribution of centre sole pressure, myoelectricity characteristics,etc,with the methods of relative software and data statistics.The conclusions and the suggestions are as follows:Conclusion:Firstly,the communality of posture angle,muscle strength,the activation order of main muscle during raising the bow, raising the bow and the timing of the raising could be used as the evaluation index of technique action in archery;Secondly,the length of the time needed in the different periods couldn\'t be used as technique evaluation index since it has no relation with the result.But the time of raising and pulling back the row is relatively fixed,and the time has a positive relation with the archery achievement of the national team in China.Thirdly,the central index of the sole pressure could be used as the reference criterion of selecting athletes and forecasting achievement.During playing archery,the interrelation between the central index of the sole pressure and the achievement is different individually and in different periods.Fourthly,there is low stability of the archery athletes in the front and back direction during the action, caused by the athletes\' posture disequilibrium of dorsal abdominal muscle and non-professional sport shoes..Fifthly,kinematics and electromyography shows that the people on archery in China haven\'t taken the raising and pulling back the row seriously.
射箭的肢体动作幅度小,简单的手段和分析不能满足其需要,笔者结合各种运动生物力学仪器优点及射箭项目的特性,选用Qualisisy红外光点测试系统、Footscan足底压力测试系统、Noraxon肌电遥测系统等对国家队射箭队运动员进行多方位的测试,运用相关软件及数理统计方法,对运动员的射箭动作技术,从射箭动作的姿态构架、肢体运动特点,身体姿态平衡稳定性、足底压力中心分布、肌电特性等进行全面分析,结论及建议如下:结论:第一,姿态角、肌肉用力激活程度、举弓阶段主要用力肌肉激活顺序、举弓、开弓时间等的一致性可作为射箭技术动作评价指标;第二,各动作阶段所用时间的长短不能作为技术评价指标,但举、开弓的时间相对较固定,开举弓时间比与中国国家队射箭成绩正弱相关达到显著性;第三,闭眼状态下足底压力中心单位面积轨迹长与144支箭最好成绩正相关达到显著性,可作为身体素质、选材及成绩预测的参考依据;实射时身体平衡的足底压力中心指标与成绩的相关程度具有个体性差异、阶段性差异;第四,射箭运动员实射时身体在前后方向上的稳定性较差,这与运动员的站立姿态、腹背肌力量的不匹配以及射箭没有专业运动鞋有关;第五,运动学及肌电学都表明中国射箭训练对举弓、开弓阶段的重视不够,背部肌肉用力特征不明显,撒放技术合理性不高。
-
TL084MJ Pinout: 3.3V Operation with 5V Tolerant Buffers ACPI 1.1, PC99/PC2001 Compliant LPC Interface with Clock Run Support Serial IRQ Interface Compatible with Serialized IRQ Support for PCI Systems 15 Direct IRQs Four 8-Bit DMA Channels ACPI SCI Interface nSMI Shadowed write only registers Internal 64K Flash ROM Programmed From Direct Parallel Interface, 8051, or LPC Host 2k-Byte Lockable Boot Block Can be Programmed Without 8051 Intervention Three Power Planes Low Standby Current in Sleep Mode Intelligent Auto Power Management for Super I/O ACPI Embedded Controller Interface Configuration Register Set Compatible with ISA Plug-and-Play Standard (Version 1.0a) High-Performance Embedded 8051 Keyboard and System Controller Provides System Power Management System Watch Dog Timer 8042 Style Host Interface Supports Interrupt and Polling Access 256 Bytes Data RAM On-Chip Memory-Mapped Control Registers Access to RTC and CMOS Registers Up to 16x8 Keyboard Scan Matrix Two 16 Bit Timer/Counters Integrated Full-Duplex Serial Port Interface Eleven 8051 Interrupt Sources Thirty-Two 8-Bit, Host/8051 Mailbox Registers Thirty-six Maskable Hardware Wake-Up Events Fast GATEA20
TL084MJ引脚说明: 3.3V工作电压为5V容错缓冲器的ACPI 1.1,PC99/PC2001符合LPC接口与时钟运行支持-兼容串行接口与串行的IRQ IRQ的支持PCI系统- 15直接的IRQ - 4个8位DMA通道- ACPI的SCI接口- nSMI -阴影只写寄存器内部的64K的Flash ROM -直接从程序并行接口,8051,还是LPC主机-的2K字节可锁定引导块-可在不干预程序8051三力飞机-低待机电流在休眠模式-智能型自动电源管理的超级I / O的ACPI嵌入式控制器接口配置寄存器设置兼容的ISA拆开的播放标准(版本1.0a)高性能嵌入式8051键盘和系统控制器-提供系统电源管理-系统监视狗定时器- 8042型主机接口-支持中断和轮询访问- 256字节数据RAM -片上存储器映射控制寄存器-获取实时时钟和CMOS寄存器-最多16x8矩阵键盘扫描- 2个16位定时器/计数器-综合全双工串行接口- 11个中断源8051 - 32个8位,Host/8051邮箱寄存器- 36个可屏蔽硬件唤醒事件-快速GATEA20
-
The fluid film bearing-flexible rotor nonlinear system with squeeze film damper is modeled practically using the finite element method and the Hamilton principle.(3) The film forces produced by fluid film bearing and squeeze film damper are determined by finite element method at any moment, and the Jacobian matrix is also determined.(4) A method for analyzing the dynamics of a large system with local nonlinearities is presented. The stability and bifurcation of the equilibrium position and the unbalance responce of a fluid film bearing-flexible rotor system with squeeze film damper are investigated based on the assumption of an incompressible lubricant together with the long bearing approximation for fluid film bearing, short bearing approximation for squeeze film damper and the"π"film cavitation model.
主要研究内容包括下面几个方面:(1)对挤压油膜阻尼器-滑动轴承-转子非线性动力系统中的非线性现象进行了机理方面的研究;(2)应用有限元方法及Hamilton原理对复杂的挤压油膜阻尼器-滑动轴承-转子非线性动力系统进行了建模分析;(3)对滑动轴承及挤压油膜阻尼器中任一时刻的油膜力及相应的Ja-cobi矩阵的确定进行了分析;(4)对一类具有局部非线性的多自由度动力系统,提出了一种可以有效地分析其动力特性的方法;(5)采用实验与理论分析相结合的方法,对挤压油膜阻尼器-滑动轴承-转子非线性动力系统的动力特性进行了分析。
-
A dynamic model was developed with kinematic differential equation derived for a dual-disc over-hung rotor system with rub-impact fault. The stability of the system and stability regions were studied by setting up nonsingular linear transform matrix and by use of Jacobi matrix in combination with the theory of Routh Hurwitz. Then, the effects on the stability regions of the system were discussed with relevant parameters.
建立了悬臂双盘碰摩转子系统的动力学模型和运动微分方程,通过创建该系统的非奇异线性变换矩阵并利用变换矩阵的Jacobi矩阵结合Routh Hurwitz理论,研究了悬臂双盘碰摩转子系统的稳定性和稳定区域,并进行了相应的参数讨论。
-
Literary grace this with between real example and normal analytical method that combine together, through study to system of reform, basic old-age pension system of Chile, try hard to make objective appraisal on the Chilean the pension system reform and Chiles new basic old-age pension system, and summarize its relevant experience on this basis, for the reform of the basic old-age pension system of our country with building and offering some helpful guidance and reference.
基于上述考虑,本文采用实证与规范相结合的分析方法,对智利养老保险制度改革进行了系统的研究,力图对智利养老保险制度改革及改革后所建立的新制度作出客观的评价,并在此基础上总结智利改革的相关经验,以期望能够为我国养老保险制度的改革与建设提供一些有意义的启示。
-
It's literary image began with the appearance of the "Cantos" and "Chu Elegies", after which came a state of two parallel clues developing together. One of the clues is lotus flowers as a literary image in the folk poetry, in the system of "Yuefu", this system most has the representation is picks the lotus poetry, the performance content mainly is the male and female love, in addition, picks the lotus poem also frequently to use for to express connotation homesickness, leaves, and so on lovesickness; While the other is in the system of scholars, in this system, the lotus flower frequently took noble and pure, happy, fresh, refined symbol, then has flees the world with from the suitable pursue, politics expected with frustrated, the personality unfolds and so on a series of implications and the function.
莲花文学意象的发生则是从《诗经》与《楚辞》开始的,之后,呈现出两条线索并行的状况,一条是乐府系统的莲花文学意象,此一系统最具代表性是采莲诗歌,表现内容主要是男女情爱,除此之外,采莲诗也常常用来表达思乡、离别、相思等内涵;另一条是文人诗赋系统的莲花文学意象,在这一系统中,莲花常常作为高洁、美好、清新、脱俗的象征物,进而具有遁世与自适的追求、政治期望与失意、人格展现等一系列寓意与功能。
-
By comparison with conventional hydrostatic transmission, its power matches load well because it is adjusted by servo system. By comparison with secondary adjusting system being applied in industry newly, HESTS not only adjusts operation mechanism to match the system output and load well, but also adjusts engine or hydraulic pump, and manipulates the direction of power flow inputing or outputing the Energy Storage Unit actively. Therefore, HESTS can get energy of whole system matched well, increase the efficiency of system and performance of main machine. First, a HESTS applied in vehicle was designed.
由于对执行机构采用自动调节,系统的功率匹配合理,效率有较大提高;同新近发展起来并已被应用的二次调节系统相比,静压储能传动不仅通过调节执行机构来达到系统输出与负载的良好匹配,而且还调节原动机或液压泵,以及主动控制系统中储能元件的能量流动,因此能达到整个系统的能量合理分配,从而提高了系统的效率和整机的性能。
-
According to the function of distributed emulator, optical information processing and image multi-object tracking system, the following three aspects were emphasized in this dissertation. Firstly, a vast virtual terrain, ground radar models and canyons were created for the distributed emulator with modeling software Creator. The radars were driven to scan during emulating and the real time terrain code was sent to Radar module. Secondly, an optics channel simulating the optics camera of a virtual aircraft was implemented with simulating software Vega. The 2-D information got from the channel was translated and sent to multi-sensor information fusion system as an optics information source. Thirdly, the dissertation studied some motion estimation methods and analyzed the factors which influence the speed and the precision of the block matching algorithms. Then an improved block matching method was proposed for image multi-object tracking system and applied in the system combined with frame difference method.
论文根据多传感信息融合实验系统中的分布式飞行仿真系统、光学信号处理器和图像多目标跟踪系统三个子系统的功能要求,具体完成了以下三方面的工作:首先利用建模软件Creator创建分布式飞行仿真系统中的大面积地形、场景中的地面雷达模型和峡谷地形,并在仿真过程中实时驱动雷达模型的扫描,同时为后续雷达仿真模块提供实时地形编码;其次利用仿真软件Vega,在分布式仿真系统中为光学信号处理器设计实现了光学通道,模拟飞行器的光学摄像机的功能,并且对由此通道获得的目标二维光学信息进行转化处理,作为光学信息源发送给后续的多传感信息融合器;最后针对图像多目标跟踪系统,在研究图像分割运动估计算法的基础上,通过分析影响块匹配算法速度和精度的因素,改进了块匹配运动估计算法,结合差分法可应用到目标跟踪系统中。
- 推荐网络例句
-
Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).
呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。
-
The cost of moving grain food products was unchanged from May, but year over year are up 8%.
粮食产品的运输费用与5月份相比没有变化,但却比去年同期高8%。
-
However, to get a true quote, you will need to provide detailed personal and financial information.
然而,要让一个真正的引用,你需要提供详细的个人和财务信息。