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期刊论文 9

年份

2021 1

2020 3

2019 1

2018 1

2017 1

2016 1

2015 1

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关键词

2016年熊本地震 1

ALOS-2 PALSAR-2 1

Cu(Inx 1

Ga1–x)Se2 1

InSAR 1

三维形变反演 1

合成孔径雷达(SAR) 1

合成孔径雷达(SAR);顺轨干涉;运动补偿;残余误差;干涉相位 1

地球同步SAR 1

多孔径SAR干涉技术(MAI) 1

常规SAR干涉测量(InSAR) 1

每日DEM生成 1

混沌系统;统计测试;嵌入式系统;dsPIC微控制器;串行外设接口(SPI)协议 1

激光烧蚀短程热效应 1

由P1引起的功率损耗 1

电池到模块的效率差距 1

精度分析 1

高光谱光致发光 1

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of sediment transport pattern and beach morphology in the vicinity of submerged groyne (case study: DahaneSar Sefidrood)

H. Afsoos Biria,M. A. Lashteh Neshaei,A. Ghabraei,M. A. Mehrdad

《结构与土木工程前沿(英文)》 2015年 第9卷 第1期   页码 82-90 doi: 10.1007/s11709-014-0275-5

摘要: Marine structures, such as Groynes, Sea walls and Detached Breakwaters, are constructed in coast of area to improve coast stability against bed erosions due to changing wave and current pattern. Marine mechanisms and interaction with the hydraulic structures need to be intensively studied. Groynes are one of the most prominent structures that are used in shore protection and littoral sediment. The main hydraulic function of the groyne is to control the long shore current and littoral sediment transport. This structure can be submerged and provide the necessary beach protection without negative aesthetic impact. However, for submerged structures adopted for beach protection, the shoreline response to these structures is not well understood. The objective of this study is to predict sediment transport in the vicinity of submerged groyne and comparison with non-submerged groyne focusing on a part of the coast at Dahane Sar Sefidrood, Guilan Province, Iran, where serious coast erosion has been occurred. The simulations were designed using a one-line model which can be used as a first approximation of shoreline prediction in the vicinity of groyne. The results of the proposed model are compared with experimental data to determine the shape of the coast. The results of predicted beach deformation show that when submerged groyne construct in the beach, sediment accumulation will be slightly less than the non-submerged groyne; because transfer coefficient for the submerged groyne is more than non-submerged groyne. This result will cause more sediment passing on submerged groyne. Finally, the result of the present study show that using submerged groyne is an efficient way to control the sediment and beach erosion without causing severe environmental effect on the coast.

关键词: submerged groyne     non-submerged groyne     beach morphology     Dahane Sar Sefidrood     sediment transport    

大而复杂形变区域中的精确三维形变反演——基于偏移的相位解缠和改进的多孔径SAR干涉测量集成技术在2016年熊本地震中的应用 Article

Won-Kyung Baek, Hyung-Sup Jung

《工程(英文)》 2020年 第6卷 第8期   页码 927-935 doi: 10.1016/j.eng.2020.06.012

摘要:

常规合成孔径雷达(synthetic aperture radar, SAR)干涉测量(InSAR)已成功用于精确测量雷达视线(line-of-sight, LOS)方向上的表面形变,而多孔径SAR干涉技术(multiple-aperture SAR interferometry, MAI)可以用于精确测量沿轨迹(along-track, AT)方向的表面形变。本研究的目的是:①通过对基于偏移的相位解缠和改进的多孔径SAR干涉图进行集成,在大而复杂的形变区域中进行精确3D形变反演的可行性测试;②观测与2016年熊本地震有关的甚至包含断层线附近的3D形变场。

关键词: 合成孔径雷达(SAR    常规SAR干涉测量(InSAR)     多孔径SAR干涉技术(MAI)     ALOS-2 PALSAR-2     三维形变反演     2016年熊本地震    

运动补偿残余误差对机载顺轨干涉SAR性能的影响 Article

Hui ZHANG,Jun HONG,Xiao-lan QIU,Ji-chuan LI,Fang-fang LI,Feng MING

《信息与电子工程前沿(英文)》 2016年 第17卷 第10期   页码 1095-1106 doi: 10.1631/FITEE.1500311

摘要: 概要:在机载合成孔径雷达(synthetic aperture radar, SAR)运动补偿中一般存在两个近似:波束中心近似和参考高程近似,这两种近似会在机载单天线SAR系统和机载干涉SAR系统成像过程中引入运动补偿残余误差本文针对机载顺轨干涉SAR(airborne along-track interferometric SAR, ATI-SAR)系统,分析了上述两种近似导致的运动补偿残余误差对干涉性能的影响。首先针对机载双天线ATI-SAR系统,在不存在参考高程误差和存在参考高程误差两种情况下分别推导了其运动补偿残余误差,然后利用机载仿真参数证明了推导公式的正确性,并展示了运补残余误差对ATI-SAR干涉相位的影响程度本文的研究为机载ATI-SAR误差源分析和信号处理提供了理论基础。

关键词: 合成孔径雷达(SAR);顺轨干涉;运动补偿;残余误差;干涉相位    

LAND-USE INTENSIFICATION TRENDS IN THE RIO DE LA PLATA REGION OF SOUTH AMERICA: TOWARD SPECIALIZATION OR RECOUPLING CROP AND LIVESTOCK PRODUCTION

Paulo César DE FACCIO CARVALHO, Jean Víctor SAVIAN, Tomas DELLA CHIESA, William DE SOUZA FILHO, José

《农业科学与工程前沿(英文)》 2021年 第8卷 第1期   页码 97-110 doi: 10.15302/J-FASE-2020380

摘要: The Rio de la Plata region comprises central Argentina, Uruguay, and southern Brazil. Modern agriculture developed around 1900 with recent decades being characterized by the advance of cropping areas over native grasslands. Highly specialized agriculture has decoupled crop and livestock production but has succeeded in intensifying yields. However, significant losses of ecosystem services have been reported. Thus, questions have been raised on the sustainability of this pathway. A glance at world regions that have experienced similar trends suggests that an urgent course correction is needed. A major concern has been the lack of diversity in regions with highly specialized agriculture, promoting renewed interest in integrated crop-livestock systems (ICLS), not only because ICLS are more diverse than specialized systems, but also because they are rare examples of reconciliation between agroecosystem intensification and environmental quality. Consequently, this paper discusses alternatives to redesign multifunctional landscapes based on ICLS. Recent data provide evidence that recoupling crop and animal production increases the resilience of nutrient cycling functions and economic indicators to external stressors, enabling these systems to face climate-market uncertainty and reconcile food production with the provision of diverse ecosystem services. Finally, these concepts are exemplified in case studies where this perspective has been successfully applied.

关键词: grazing     integrated crop-livestock systems     mixed crops-livestock     Pampa    

使用串行外设接口协议的混沌数字加密系统及其dsPIC实现 None

Rodrigo MÉNDEZ-RAMÍREZ, Adrian ARELLANO-DELGADO, César CRUZ-HERNÁNDEZ, Fausto ABUNDIZ-PÉREZ, Rigoberto

《信息与电子工程前沿(英文)》 2018年 第19卷 第2期   页码 165-179 doi: 10.1631/FITEE.1601346

摘要: 当前数字通信的大规模使用需要嵌入式系统(embedded system,ES)和协议级数据加密来实现安全连接。串行外设接口(serial peripheral interface,SPI)协议被ES和集成电路制造商广泛应用于有线和无线通信等领域。提出一种应用于SPI通信协议的混沌加密和解密算法的设计及其实验实现。混沌加密算法及对应解密算法的设计基于混沌Hénon映射和两种模糊和排列方法(结合DNA序列)。考虑到对称密钥,SPI协议采用16位配置作为同步发射机和接收机。使用两个低成本dsPIC微控制器作为ES,设计结果得到实验验证。基于其数字信号处理属性,SPI数模转换器被用于处理、获取和重构机密消息。最后,统计检验证明了加密的安全性。该算法数字处理能力得到dsPIC微控制器验证。

关键词: 混沌系统;统计测试;嵌入式系统;dsPIC微控制器;串行外设接口(SPI)协议    

用于SAR图像分类的统计分布基元特征 Article

Chu HE, Ya-ping YE, Ling TIAN, Guo-peng YANG, Dong CHEN

《信息与电子工程前沿(英文)》 2017年 第18卷 第10期   页码 1614-1623 doi: 10.1631/FITEE.1601051

摘要: None

关键词: None    

利用地球同步轨道InSAR每日生成DEM的质量分析 Article

杨泽发, 张庆君, 丁晓利, 陈武

《工程(英文)》 2020年 第6卷 第8期   页码 913-918 doi: 10.1016/j.eng.2020.07.003

摘要: 结果表明:GEOSAR卫星生成的每日DEM产品精度通常远低于利用传统低轨星载合成孔径雷达(SAR)获得的DEM产品。因此,研究GEOSAR DEM生成过程中的误差削弱方法显得至关重要。

关键词: 每日DEM生成     InSAR     地球同步SAR     精度分析    

The synthesis of 6-(tert-butyl)-8-fluoro-2,3-dimethylquinoline carbonate derivatives and their antifungal activity against Pyricularia oryzae

Long Cheng, Ruirui Zhang, Hongke Wu, Xinghai Liu, Tianming Xu

《化学科学与工程前沿(英文)》 2019年 第13卷 第2期   页码 369-376 doi: 10.1007/s11705-018-1734-7

摘要: A series of novel 6-( -butyl)-8-fluoro-2,3-dimethylquinoline carbonate derivatives were designed and synthesized. Bioassay results showed that some of them exhibited good activity against ( ). It was found that the compound (benzyl (6-( -butyl)-8-fluoro-2,3- dimethylquinolin-4-yl) carbonate) possessed good activity against whatever protective activity (10 mg·L ) or curative activity (25 mg·L ), which was better than that of control tebufloquin. In addition, the frontier molecular orbit results revealed that the compound held higher activity against when the total energy was low and the ClogP was high, which may provide useful information for further design novel fungicides.

关键词: quinoline     synthesis     antifungal activity     rice blast     SAR    

用高光谱发光法研究Cu(Inx,Ga1–x)Se2 (CIGS)模块中由P1引起的功率损耗的成因 Article

sar Omar Ramírez Quiroz, Laura-Isabelle Dion-Bertrand, Christoph J.

《工程(英文)》 2020年 第6卷 第12期   页码 1395-1402 doi: 10.1016/j.eng.2019.12.019

摘要:

在本文中,我们利用了高光谱高分辨率光致发光映射技术,这是一个强大的工具,可用于选择和优化在Cu(Inx,Ga1-x)Se2(CIGS)模块上对子电池进行图案化互连的激光烧蚀工艺。通过这种方式,我们可以完成对消融区域附近材料降解的深度监测以及对潜在机制的识别。具体而言,通过分析在CIGS沉积之前烧蚀的标准P1图案线,我们发现了沿着下部的钼槽边缘的异常发射猝灭效应。通过扫描电子显微镜(SEM)比较了P1边缘的横截面的形貌,我们进一步合理化产生这种效应的起因,但无法用厚度变化解释光发射的减少。我们还研究了激光诱导对CIGS沉积后的P1图案线带来的损伤。然后,我们首次记录了短距离损坏区域,该区域与在激光路径上应用的光学孔径无关。我们的发现能更好地理解P1引起的功率损耗,并为改进与行业相关的模块互连方案提供了新的见解。

关键词: Cu(Inx     Ga1–x)Se2     电池到模块的效率差距     由P1引起的功率损耗     高光谱光致发光     激光烧蚀短程热效应    

标题 作者 时间 类型 操作

of sediment transport pattern and beach morphology in the vicinity of submerged groyne (case study: DahaneSar Sefidrood)

H. Afsoos Biria,M. A. Lashteh Neshaei,A. Ghabraei,M. A. Mehrdad

期刊论文

大而复杂形变区域中的精确三维形变反演——基于偏移的相位解缠和改进的多孔径SAR干涉测量集成技术在2016年熊本地震中的应用

Won-Kyung Baek, Hyung-Sup Jung

期刊论文

运动补偿残余误差对机载顺轨干涉SAR性能的影响

Hui ZHANG,Jun HONG,Xiao-lan QIU,Ji-chuan LI,Fang-fang LI,Feng MING

期刊论文

LAND-USE INTENSIFICATION TRENDS IN THE RIO DE LA PLATA REGION OF SOUTH AMERICA: TOWARD SPECIALIZATION OR RECOUPLING CROP AND LIVESTOCK PRODUCTION

Paulo César DE FACCIO CARVALHO, Jean Víctor SAVIAN, Tomas DELLA CHIESA, William DE SOUZA FILHO, José

期刊论文

使用串行外设接口协议的混沌数字加密系统及其dsPIC实现

Rodrigo MÉNDEZ-RAMÍREZ, Adrian ARELLANO-DELGADO, César CRUZ-HERNÁNDEZ, Fausto ABUNDIZ-PÉREZ, Rigoberto

期刊论文

用于SAR图像分类的统计分布基元特征

Chu HE, Ya-ping YE, Ling TIAN, Guo-peng YANG, Dong CHEN

期刊论文

利用地球同步轨道InSAR每日生成DEM的质量分析

杨泽发, 张庆君, 丁晓利, 陈武

期刊论文

The synthesis of 6-(tert-butyl)-8-fluoro-2,3-dimethylquinoline carbonate derivatives and their antifungal activity against Pyricularia oryzae

Long Cheng, Ruirui Zhang, Hongke Wu, Xinghai Liu, Tianming Xu

期刊论文

用高光谱发光法研究Cu(Inx,Ga1–x)Se2 (CIGS)模块中由P1引起的功率损耗的成因

sar Omar Ramírez Quiroz, Laura-Isabelle Dion-Bertrand, Christoph J.

期刊论文