2013年北极最小海冰比2012年增加的原因分析
北极海冰范围从１９７９年有卫星观测资料以来呈现明显下降趋势，尤其是９月份。２０１２年９月，北极海冰范围达到有观测记录以来的最小值，而２０１３年９月比２０１２年同期增加了６０％。增加的区域主要在东西伯利亚海区、楚科奇海和波弗特海区。本文应用距平和经验模态分解方法，分析了美国国家冰雪数据中心的北极海冰卫星数据、欧洲预报中心的夏季底层大气环流数据和上层海洋的温度， …
Causes for Different Spatial Distributions of Minimum Arctic Sea-Ice Extent in 2007 and 2012
Satellite records show the minimum Arctic sea ice extents (SIEs) were observed in the Septembers of 2007 and 2012, but the spatial distributions of sea ice concentration reductlon …
一种改进的最低有效位图像水印技术
信息媒体的数字化为信息的保存和提取提供了极大的方便,随着数字媒体的传送空间不断扩大,传送时间也在不断缩短,数字产品在发布和传送过程中很容易被侵权、盗版或随意篡改。本文针对图像信息的版权、所有权和内容完整性的保护等问题,利用低位水印技术,重点解决图像信息认证问题,以实现对图像信息的版权、所有权和内容完整性保护及双方责任鉴定等功能。
Homotopy-Based Analytical Approximation to Nonlinear Short-Crested Waves in a Fluid of Finite Depth
A nonlinear short-crested wave system, consisting of two progressive waves propagating at an oblique angle to each other in a fluid of finite depth, is investigated by means of an …
Steady-State Solutions for Subsurface Chlorophyll Maximum in Stratified Water Columns with a Bell-Shaped Vertical Profile of Chlorophyll
A bell-shaped vertical profile of chlorophyll a (Chl a) concentration, conventionally referred to as a subsurface chlorophyll maximum (SCM) phenomenon, has frequently been observed …
X. Gong
基于排队论的优化银行服务方面的研究应用
在我国金融开放度日益深化的条件下,银行服务质量与效率决定其市场竞争力。近年随着商业银行零售业务的快速发展,我们逐渐意识到排队问题是影响银行服务质量和水平的重要因素.本文在排队论的基础上,利用统计的方法,针对银行窗口排队问题,建立数学模型,以实现银行窗口的设置和排队的优化,为银行服务系统提供有益的参考。
The Nonlinear Hydroelastic Response of a Semi-Infinite Elastic Plate Floating on a Fluid Due to Incident Progressive Waves
The nonlinear hydroelastic response of very large floating structures (VLFSs) or an ice sheet floating on the surface of deep water, idealized as a semi-infinite thin elastic …
Evaluation of the Eastern Equatorial Pacific SST Seasonal Cycle in CMIP5 Models
The annual cycle of sea surface temperature (SST) in the eastern equatorial Pacific (EEP) has the largest amplitude in the tropical oceans, but it is poorly represented in the …
Z. Y. Song