反位置

An algorithm for detecting moving IR point target in complex background is proposed,which is based on the Reverse Phase Feature of Neighborhood of target in difference between neighbor frame images that two positions of the target in the difference image are near and the gray value s of them are close to in absolute value but with inverse sign.

基于运动点目标在邻帧差分图像中所具有的近邻反相特征，即运动点目标的两个位置相邻近、灰度值一正一负，提出一种在复杂背景下，基于红外序列图像的运动点目标检测算法。

An algorithm for detecting moving IR point target in complex background is proposed,which is based on the Reverse Phase Feature of Neighborhood of target in difference between neighbor frame images that two positions of the target in the difference image are near and the gray values of them are close to in absolute value but with inverse sign.

朱风云 ，秦世引基于运动点目标在邻帧差分图像中所具有的近邻反相特征，即运动点目标的两个位置相邻近、灰度值一正一负，提出一种在复杂背景下，基于红外序列图像的运动点目标检测算法。

Equations set based on analytic equation was presented to determine the position of device intervening body cavity to diagnose disease.

为了解决介入人体腔道诊疗器件的定位问题，提出了一种利用永磁磁场解析表达式组建方程来反推位置的方法。

The low-level wind field displayed cyclonic character on the north part of the squall line, whereas on its south part the wind field pattern was anticyclonic, with clear convergence of westerly and southeast inflows in between.

飑线不同位置的水平风场结构有很大不同，在飑线北端，低层是气旋性辐合风场，飑线南端是反气旋性辐合风场，而中部沿强对流窄带的前部是偏西和东南风的风场辐合。

In the orientation of rural development and antipoverty movement in the world,the development of individual is always the core.

在国内外农村发展和反贫困大潮中，人的发展都处于核心位置。

In this paper, an improved sensorless control strategy, which is based on the detection of zero crosspoints of back-EMF, is proposed. In this method, only one feed back signal is needed to sense terminal voltages and no motor neutral line is required. The phase shifter errors in traditional methods are eliminated.

本文同时提出了一种改进的无位置传感器检测方法，这种方法基于反电势过零点检测的基本原理，采用单路位置反馈信号，无须引出电机中性线，硬件结构简单，消除了传统检测方法中由于深度滤波产生的相移和误差。

The calculated results show: the ground state structures of PtNi5, Pt2Ni4 and Pt3Ni3 clusters are quadrangular bi-pyramid, and Pt4Ni2 and Pt5Ni clusters are triangular bi-pyramid with hat and triangular pyramid with quadrilateral, respectively. From the point of view of thermodynamics, PtnNim clusters are stable because of the negative enthalpy of formation; the positive NICS of PtNi5 clusters show anti-aromaticity, The negative NICS of Pt2Ni4 and Pt5Ni clusters show aromaticity. The number of the IR absorption peak of Pt3Ni3 is the most. The IR and raman absorption peak of PtNi5 , IR of Pt2Ni4, Raman of Pt3Ni3 and Pt4Ni2 have only one. The absorption peak of Pt5Ni appears in the bigger frequencies only, and is zero almost in the small frequencies.

研究结果表明：PtNi5、、Pt2Ni4、Pt3Ni3团簇的基态结构都为四角双锥结构，Pt4Ni2 和Pt5Ni团簇的基态结构分别是戴帽三角双锥和三角锥戴四边形结构；PtnNim团簇的生成焓都为负值，表明团簇在热力学上是稳定的；由NICS值可得，PtNi5团簇具有反芳香性，Pt2Ni4和Pt5Ni团簇具有芳香性；从光谱分析来看，Pt3Ni3团簇的IR较强吸收峰的个数最多，PtNi5团簇的IR和Raman、Pt2Ni4团簇的IR、Pt3Ni3和Pt4Ni2团簇的Raman只有一个强吸收峰值，Pt5Ni团簇的峰值只出现在频率较大的位置，频率小的位置几乎为零。

The inner and outer shoulders are slidable within the supporting bearings such that, in a first position, the pinion gear is drivingly engaged with the spool shaft for rewinding the line and, in a second position, the pinion gear is disengaged from the spool shaft, allowing the spool to freely rotate during casting.

该内肩和外肩可在这两个支撑轴承中滑动，从而，在第一位置上，该小齿轮受驱动而与该绕线筒轴啮合以反绕钓鱼线；在第二位置上，该小齿轮与该绕线筒轴脱离，从而抛鱼饵时该绕线筒可自由转动。

Dr Kroo and his team modelled what would happen if three passenger jets departing from Los Angeles, San Francisco and Las Vegas were to rendezvous over Utah, assume an inverted V-formation, occasionally swap places so all could have a turn in the most favourable positions, and proceed to London.

克鲁教授和他的团队模拟了三架分别从洛杉矶，旧金山和拉斯维加斯起飞的客机在犹他州集合，采用反 V 字形状并偶尔换一下位置以便所有飞机轮流利用最有利位置，最后飞到伦敦。

In the further study of attentional cueing, a lost of response time on cue-positioncompared with response time on uncue-position was found.

被试检测被提示位置靶子的反应时要比检测非提示位置靶子的反应时短，在这种现象被称为注意提示效应。

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％。