The following article has been retracted due to the investigation of complaints received against it. Title: A New Method of Construction of Robust Second Order Slope Rotatable Designs Using Pairwise Balanced Designs. ...The following article has been retracted due to the investigation of complaints received against it. Title: A New Method of Construction of Robust Second Order Slope Rotatable Designs Using Pairwise Balanced Designs. Authors: Bejjam Re. Victorbabu, Kottapalli Rajyalakshmi.The paper is a copy of Dr. Rabindra Nath Das’s former article, entitled “Slope rotatability with correlated errors (Vol. 54, pp. 57-70, 2003)” and “Robust second order rotatable designs (Part I)”. The scientific community takes a very strong view on this matter and we treat all unethical behavior such as plagiarism seriously. This paper published in OJSVol.2 No.3, 319-327, 2012, has been removed from this site.展开更多
The influence of laser beam divergence angle on the positioning accuracy of scanning airborne light detection and ranging （LIDAR） is analyzed and simulated. Based on the data process and positioning principle of air...The influence of laser beam divergence angle on the positioning accuracy of scanning airborne light detection and ranging （LIDAR） is analyzed and simulated. Based on the data process and positioning principle of airborne LIDAR, the errors from pulse broadening induced by laser beam di vergence angle are modeled and qualitatively analyzed for different terrain surfaces. Simulated results of positioning errors and suggestions to reduce them are given for the flat surface, the downhill of slope surface, and the uphill surface.展开更多
越浪对港内建筑物、船只和人员的安全构成威胁,也是导致海堤破坏的重要原因之一。因此,对越浪量的研究十分必要。基于某斜坡式防波堤的物理模型试验,得出相应的试验越浪量。同时针对堤前水位等影响因素,选取国内外经典的防波堤经验公式...越浪对港内建筑物、船只和人员的安全构成威胁,也是导致海堤破坏的重要原因之一。因此,对越浪量的研究十分必要。基于某斜坡式防波堤的物理模型试验,得出相应的试验越浪量。同时针对堤前水位等影响因素,选取国内外经典的防波堤经验公式,结合试验数据对各公式进行误差分析。结果显示:根据室内模型试验的限制范围,陈国平公式误差较小;VAN DER MEER的平均值方法计算结果整体上偏低于试验值;OWEN公式受波浪周期的影响较大,当波浪周期较大时,计算误差较大。展开更多
文摘The following article has been retracted due to the investigation of complaints received against it. Title: A New Method of Construction of Robust Second Order Slope Rotatable Designs Using Pairwise Balanced Designs. Authors: Bejjam Re. Victorbabu, Kottapalli Rajyalakshmi.The paper is a copy of Dr. Rabindra Nath Das’s former article, entitled “Slope rotatability with correlated errors (Vol. 54, pp. 57-70, 2003)” and “Robust second order rotatable designs (Part I)”. The scientific community takes a very strong view on this matter and we treat all unethical behavior such as plagiarism seriously. This paper published in OJSVol.2 No.3, 319-327, 2012, has been removed from this site.
基金Supported by the National Basic Research Program of China("973"Program)(2009CB72400401A)
文摘The influence of laser beam divergence angle on the positioning accuracy of scanning airborne light detection and ranging （LIDAR） is analyzed and simulated. Based on the data process and positioning principle of airborne LIDAR, the errors from pulse broadening induced by laser beam di vergence angle are modeled and qualitatively analyzed for different terrain surfaces. Simulated results of positioning errors and suggestions to reduce them are given for the flat surface, the downhill of slope surface, and the uphill surface.
文摘越浪对港内建筑物、船只和人员的安全构成威胁,也是导致海堤破坏的重要原因之一。因此,对越浪量的研究十分必要。基于某斜坡式防波堤的物理模型试验,得出相应的试验越浪量。同时针对堤前水位等影响因素,选取国内外经典的防波堤经验公式,结合试验数据对各公式进行误差分析。结果显示:根据室内模型试验的限制范围,陈国平公式误差较小;VAN DER MEER的平均值方法计算结果整体上偏低于试验值;OWEN公式受波浪周期的影响较大,当波浪周期较大时,计算误差较大。
