发射的
- 与 发射的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The invention discloses a data transmitting method, a device and a system in a time division duplex system, which is used to solve the problem in the prior art that downlink data among adjacent cells interfere to uplink data; the method comprises that: a blanket channel of a whole cell or a high-power transmit channel is mapped to OFDM symbols of a downlink time slot in a transmit frame, a guard interval in the transmit frame and the OFDM symbol on a time domain space OFDM symbols which are not mapped to any of the blank channel of the whole cell and the high-power transmit channel; an uplink control channel is mapped to OFDM symbols of an uplink time slot in the transmit frame, the guard interval and the OFDM symbols for mapping the uplink control channel on the time domain space OFDM symbols which are not mapped to uplink control channel; the OFDM symbols of the transmit frame are transmitted; the invention is adopted to avoid the interference between the downlink data and the uplink data among the adjacent cells.
本发明公开了一种时分双工系统中发送数据的方法、装置及系统,用以解决现有技术中邻近小区间的下行数据对上行数据产生干扰的问题;该方法包括将全小区覆盖信道或大功率发射信道映射到传输帧中下行时隙的OFDM符号上,并且所述传输帧中的保护间隔与所述OFDM符号在时域上间隔未映射全小区覆盖信道和大功率发射信道中任一信道的OFDM符号;将上行控制信道映射到所述传输帧中上行时隙的OFDM符号上,并且所述保护间隔与映射上行控制信道的OFDM符号在时域上间隔未映射上行控制信道的OFDM符号;发送所述传输帧的OFDM符号;采用本发明可以避免相邻小区间的下行数据和上行数据之间的干扰。
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The following are the expressionsfor the mean pressure set up at the detection plate and for the time of the signal toprogagate from the radiator to the detector:这里是1个公式,省略) where Re is the real part of the expression appearing within the braces, 0 is the density ofthe medium, vo is the amplitude of the vibrational velocity, c is the speed of sound in themedium, d2 = I +(r/zcos 8, z is the distance between the emitting and receiving plates, B is the angle between the axis of the acoustic channel andthe axis of the tube, r = vro/c, v is the flow speed of the fluid, d is thediameter of the pipe, m is the circular frequency, k is the wave number,where a is the radius of the plate (this is taken as the same for the emitting and receivingplates for simplicity, but there is no difficulty in discussing plates differ~mg in radii),,~ is the vibrational frequency of the emitting plate, andThe triple sums in the expressions for N~ and N2 may be neglected if the flow speed islow, since the contributions for these become negligible.
以下是表达式平均压力为定于检测板和为信号时间progagate从散热器到探测器:(这里是1个公式,省略)假如再是出现在大括号表达式的实部,0是密度中期,沃是速度的振动幅度,C是健全的速度中,D2中=我+的导向8,z是对之间的距离发射与接收板,B是声之间的通道轴角该管的轴,R =中心内大多分为/荤,v是流体的流动速度,,D是管道直径,m是圆频率,k是波数,的其中一盘是半径(这是为重点,同样的发射与接收为le简单板,但没有讨论板的困难,在半径不同毫克),,是发光板振动频率,和在N的表达式的三重总结和N2可以忽略,如果流速低,因为这些变得微不足道的贡献。
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First, this article introduced the status of the electromagnetic launch technology in general. Then, the author further introduced a new principle of coil launch technology and its inductance in the equivalent circuit which are based on the principles of linear motor. It is a more comprehensive thought in the study. Third, in the building of the power supply system, the most important things are the trigger control loop structures, the gap switch debugging, the measurement of the impact current, and electromagnetic interference protection. Finally, I introduced the experiment, the simulation analysis of some questions in the experiment. The most important thing is the analysis of the equivalent circuit of the stator windings. And the author build a simulation model based on it.
本文首先介绍了电磁发射技术的概况;其次,基于直线电机的原理,介绍了直线驱动线圈发射技术的基本原理、等效电路和回路电感计算,得到了较完整的课题研究思路;第三,搭建电源系统,工作的的重点是触发控制回路的研制、间隙开关的调试、冲击电流的测量、电磁干扰防护措施;最后,介绍了课题实验情况,对实验中产生的问题进行了仿真分析,其中以定子线圈的等效电路的分析为重点,建立了仿真模型,并对参数的变化进行了仿真研究,为后续的实验研究提供参考。
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Reactive oxygen species causing DNA oxidative damage comes from two kinds of ways:one is from cellular normal physiological metabolism;the other is from outer environment.Redox-sensitive green fluorescent protein was expressed in Saccharomyces cerevisiae.Recombinant cells were evaluated in monitoring the changes in the redox state of living cells when challenged with toxicologically relevant metal ions NaAsO_2 or Pb(NO_3)_2 by measuring emission intensity at 510 nm with a Hitachi F6500 fluorescence spectrophotometer,roGFP expressed in yeast responded not only to typical membrane-permeant oxidants H_2O_2 and reductants DTT,but also to toxicological metal ion-induced intracellular redox changes in a dose-dependent manner.Moreover,exposure of yeast cells to NaAsO_2 or Pb(NO_3)_2 at concentrations that induced redox changes reported by roGFP caused up to 2~3 fold increases in DNA mutation frequency.This mutagenic effect was largely caused by oxidative stress since blocking the production of hydryl radicals with thiourea significantly reduced the mutation rate as well as delayed the cell death.
本文将对氧化还原状态变化敏感的绿色荧光蛋白roGFP1-R12,在酵母细胞中实现了多拷贝强表达;荧光扫描经强氧化剂H_2O_2和还原剂DTT以及环境中重金属NaAsO_2或Pb(NO_3)_2处理后的酵母细胞悬液,测定510 nm处的荧光发射强度结果显示,表达的绿色荧光蛋白对氧化还原水平敏感,且在510 nm处的荧光强度与一定的重金属浓度呈正相关,即roGFP1-R12在510nm处的荧光发射值随重金属浓度的增高而增强,从而说明重金属对细胞的毒性在一定程度上很可能是通过破坏细胞内的氧化还原平衡发生作用;同时通过该绿色荧光蛋白对胞内氧化还原状态变化的响应情况可以来实时检测环境中的重金属;遗传学的点突变频率及致死率实验数据表明,重金属能导致菌体的点突变频率和致死率升高,且活性氧的清除剂巯基脲能明显降低这种点突变和致死率,说明由重金属引发的这种点突变和致死效应在很大程度上是依赖于重金属对细胞诱导产生的氧化胁迫。
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The results show that photocatalyst TiO2 improves the removal rate of toluene in not only the nitrogen plasma field (NTP-P-O2/N2) eradiating ultraviolet light but also the argon plasma field eradiating visible light. This supports the idea that both the UV light and the high-energy electron in the plasma field can activate TiO2. Furthermore, the toluene removal rate in NTP-P-Ar system is 5% higher than that in NTP-P-O2/N2 system, confirming that high-energy electron has greater effect on the degradation performance of toluene, as compared with UV light.
结果表明:在发射紫外光的氮等离子体场(NTP-P-O2/N2)中和发射可见光的氩等离子体场中,TiO2:均能提高体系的甲苯去除率,说明等离子体场中产生的紫外光和高能电子均能激活光催化剂TiO2;NTP-P-Ar体系中的甲苯去除率较NTP-P-O2/N2:体系中的约提高5%,说明等离子体场中高能粒子对甲苯降解性能的影响要强于紫外光的影响。
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Firstly, this paper gives a brief introduction on the principles and the form of GPS system; On the base of the demand of the moving bi-static/multi-static radar measuring real-time position of the transmitter and the receiver, separately the application of GPS in the radar is discussed; Formulas of the distance and the azimuth the receiver relative to the transmitter are ...
论文首先简单介绍GPS的工作原理及其系统组成;根据在运动平台上的双/多基地雷达需要对发射站和接收站位置进行实时定位的要求,研究GPS在该雷达中的应用;根据GPS提供的接收站经纬度信息,推导了接收站相对于发射站的距离和方位角的计算公式;讨论了GPS定位误差对接收站定位和对目标定位精度的影响,结果表明GPS可以满足该雷达系统的要求。
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The experiment shows that CSELF is potentially valuable for earthquake research and prediction. It is also found that the recorded electric and magnetic component amplitude of CSELF signal varies depending on the distance and azimuth of the observatories relative to the transmitter. These amplitudes decline with increasing distance between observatory and transmitter faster within some space extent than those outside the extent. It may be easier for magnetic components to have higher ratio of signal to noise than for electric component.
试验还发现,各地震台站和流动测点观测的CSELF信号的强度,与台站或者测量的电、磁场分量相对于发射源的距离、方位有明显的关系;发现在离开发射源的相对近区,场强随距离的衰减,比在相对远区更快;发现接收磁场信号比电场信号较易获得更高信噪比的数据。
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Compare the data structures of pressure fluctuation signals and AE signals both sampled in gas-solid fluidized bed, and the difference of data structures among AE signals sampled in gas-solid fluidized bed, pneumatic transport tube, slurry bubble column, liquid-solid loop reactor, and liquid-solid stirred tank. Based on the compare, the corresponding relation between signal structure and physical multi-scales was established.
通过对气固流化床的声发射信号与压力脉动信号的结构比较,以及气固流化床、气力输送、气液固淤浆鼓泡床、液固环管及液固搅拌釜中声发射信号多尺度结构差异比较,建立了多相流体系随机信号多尺度结构与物理多尺度的对应关系,认为在有固体颗粒存在的多相流体系,微尺度信号代表了颗粒相对于主体流动的运动状态;介尺度代表主体流相对于系统的运动或者不同主体流之间的相互运动;宏尺度则反映整个系统状态随时间的变化。3。
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The problem considered in this paper contains absorbing-emitting medium, absorption and emission of radiation not only exist on boundary of the system, but exist in the whole space fulled of medium, variation of temperature, pressure, density, compusure and property with coordinates must be considered in computation, so computation in this paper is based on three dimensional flow field.
本文所计算的问题包含吸收-发射性介质,能量的吸收和发射不仅发生在系统的边界上,而且还发生在充满介质的全部空间,在计算中要考虑介质中各点的温度、压力、浓度、成份以及物性在空间上的变化,因此本文的计算是根据三维流场计算的数据进行的。
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February 15, 1996, the Long Route B first launch to the International Telecommunications Satellite 708, Rockets 22 seconds after take-off attitude out of control, fully loaded with fuel into the rocket launch tower from 1850 m on the slopes, the location of the explosion just in the space program Technical personnel living quarters near the strong blast destroyed the moment the steel and concrete construction, was killed 6 people and injuring 57 people, a rocket designed specifically for the flight trajectory, a senior engineer at the expense of on the spot.
1996年2月15日,长征三号乙首飞发射国际通信卫星708,火箭起飞22秒以后姿态失控,满载燃料的火箭撞向距发射塔架1850米的山坡上,爆炸的地点正好在航天工程技术人员住的宿舍附近,强烈的气浪瞬间冲垮了钢筋水泥的建筑,死亡6人、伤57人,一位专为火箭设计飞行弹道的高级工程师当场牺牲。
- 推荐网络例句
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In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.
。但是,在否定句或疑问句里,这种带有"do"的方法表达的效果却没有什么强调的意思。
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Go down on one's knees;kneel down
屈膝跪下。。。下跪祈祷
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Nusa lembongan : Bali's sister island, coral and sand beaches, crystal clear water, surfing.
Nusa Dua :豪华度假村,冲浪和潜水,沙滩,水晶般晶莹剔透的水,网络冲浪。