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| 1 | Responses of wheat seedlings to cadmium,mercury and trichlorobenzene stresses显示文摘The molecular response of wheat(Triticum aestivum L.,cv.Yangmai 13) seedlings to heavy metal(Cd,Hg) and 1,2,4-trichlorobenzene(TCB) stresses were examined by two-dimensional gel electrophoresis,image analysis,and peptide mass fingerprinting.The results showed inhibitions of root and shoot growth by Cd,Hg,and TCB.These stresses led to water deficit and lipid phosphorylation in the seedling which also promoted protein phophorylation in the leaves.Hg stress inhibited protein synthesis while Cd and TCB stresses induced or up-regulated more proteins in the leaves.Most of these induced proteins played important roles in the biochemical reactions involved in tolerance of wheat to Cd and TCB stresses.The primary functions of Cd-and TCB-induced proteins included methionine metabolism,Rubisco modification,protein phosphorylation regulation,protein configuration protection,H+ transmembrane transportation and also the synthesis of ethylene,defense substances and cell wall compounds. | GE Cailin DING Yan WANG Zegang WAN Dingzhen WANG Yulong SHANG Qi LUO Shishi | 2009 | Journal of Environmental Sciences2009，21，6： | 12 |
| 2 | High Resolution Radar Real-Time Signal and Information Processing显示文摘Radar is an electronic device that uses radio waves to determine the range, angle, or velocity of objects. Real-time signal and information processor is an important module for real-time positioning, imaging, detection and recognition of targets. With the development of ultra-wideband technology, synthetic aperture technology, signal and information processing technology, the radar coverage, detection accuracy and resolution have been greatly improved, especially in terms of one-dimensional(1D) high-resolution radar detection, tracking, recognition, and two-dimensional(2D) synthetic aperture radar imaging technology. Meanwhile, for the application of radar detection and remote sensing with high resolution and wide swath, the amount of data has been greatly increased. Therefore, the radar is required to have low-latency and real-time processing capability under the constraints of size, weight and power consumption. This paper systematically introduces the new technology of high resolution radar and real-time signal and information processing. The key problems and solutions are discussed, including the detection and tracking of 1D high-resolution radar, the accurate signal modeling and wide-swath imaging for geosynchronous orbit synthetic aperture radar, and real-time signal and information processing architecture and efficient algorithms. Finally, the latest research progress and representative results are presented, and the development trends are prospected. | Teng Long Tao Zeng Cheng Hu Xichao Dong Liang Chen Quanhua Liu Yizhuang Xie Zegang Ding Yang Li Yanhua Wang Yan Wang | 2019 | China Communications2019，16，2： | 7 |
| 3 | A proteomic analysis of rice seedlings responding to 1,2,4-trichlorobenzene stress显示文摘回答 to1,2,4-trichlorobenzene (TCB ) 的根和叶子强调的米饭(Oryza sativa L.) 的 proteomic 分析被二维的胶化电气泳动执行,质量度谱(MS ) ,并且蛋白质数据库分析。结果证明 5 mg/L TCB 应力在米饭根和叶子在全球 proteome 上有重要效果。范畴的分析和 TCB 的功能强调可诱导的蛋白质证明回答的不同类型在米饭根和叶子被生产,当稻秧暴露于 5mg/L TCB 应力时。大多数回答为保卫 TCB 应力的损坏的米饭是必要的。这些回答包括有毒的物质,致病相关的蛋白质的表示,细胞壁物质的合成和第二等的混合物的解毒,蛋白质的规定和氨基酸新陈代谢,蛋氨酸的激活抢救小径,并且也包括渗透的规定和植物激素新陈代谢。比较 TCB 压力在二栽培变种,β-葡萄糖苷酶和致病相关的蛋白质之间的可诱导的蛋白质家庭 10 蛋白质被 TCB 应力特别地在米饭栽培变种( Oryza sativa L.)的根导致 Aizaizhan ,并且谷胱甘肽 S-transferase 和 aci-reductone dioxygenase 4 在米饭栽培变种 Shanyou 63 的根被导致。这可以是为比 Aizaizhan 有更高的公差到 TCB 应力的 Shanyou 63 的重要机制之一。 | GE Cailin WAN Dingzhen WANG Zegang DING Yan WANG Yulong SHANG Qi MA Fai LUO Shishi | 2008 | Journal of Environmental Sciences2008，20，3： | 7 |
| 4 | An improved motion compensation method for high resolution UAV SAR imaging显示文摘The polynomial and sinusoidal motion errors always exist in the unmanned aero vehicle(UAV)SAR due to the small size and low velocity of the platform,causing serious spectrum compressing/stretching and significant spectral replicas of the azimuth signal.The motion errors induce serious blurring of the SAR image and'ghost targets',and can hardly be precisely estimated by the conventional motion compensation(MOCO)method.In this paper,an improved MOCO method is proposed to estimate and eliminate the motion errors in the high resolution UAV SAR without high precision inertial navigation system(INS)data.The time domain range walk correction(RWC)operation in the coarse phase error estimation process of the proposed MOCO method is the key operation that ensures the estimation accuracy of the whole MOCO method.Finally,the validity of the improved MOCO method is verified by computer simulations and real UAV SAR data processing. | FAN BangKui DING ZeGang GAO WenBin LONG Teng | 2014 | Science China(Information Sciences)2014，57，12： | 6 |
| 5 | Improved spectrum reconstruction technique based on chirp rate modulation in stepped-frequency SAR显示文摘To improve the efficiencies of the traditional spectrum reconstruction techniques, an improved spectrum reconstruction technique(ISRT) based on chirp rate modulation(CRM) is proposed. With the help of a CRM operation, a reconstructed wideband signal with a narrow pulse width can be obtained. Compared with the traditional time domain spectrum reconstruction technique(TSRT), ISRT is less time-consuming since much less samples are needed. Compared with the traditional frequency domain spectrum reconstruction technique(FSRT), the reconstructed signal is a chirp signal, which has no limitation on the subsequent imaging algorithm.What is more, processing steps of ISRT are optimized, and the computational burden is less than that of TSRT and FSRT. Both simulation results and real data processing have verified the validity of ISRT. | GAO WenBin DING ZeGang ZHU DongLin ZENG Tao LONG Teng | 2015 | Science China(Information Sciences)2015，58，10： | 2 |
| 6 | Tomographic SAR imaging with large elevation aperture: a P-band small UAV demonstration显示文摘Elevation resolution is an important indicator in tomographic SAR imaging as it represents the ability to discriminate closed targets in elevation. In general, the elevation resolution is proportional to the length of the elevation aperture. However, as the elevation aperture increases, the geometric consistency of the image will undesirably deteriorate and hence fails the image coregistration approach required by the traditional super-resolution tomographic imaging. In this paper, a new super-resolution tomographic imaging method is proposed to overcome the inconsistency problem caused by the large elevation aperture. The core strategy is to get rid of two-dimensional image coregistration by applying a three-dimensional(3 D) back projection like imaging manner: the 3 D space is firstly divided into a 3 D imaging grid, each of which is individually imaged via compressive sensing for super-resolution. The effectiveness of the proposed approach is evaluated by both computer simulations and real P-band UAV SAR data. | Tao ZENG Minkun LIU Yan WANG Zegang DING Linghao LI Zhen WANG Yangkai WEI Jianping WANG | 2022 | Science China(Information Sciences)2022，65，3： | 2 |
| 7 | Deramp range migration processing for space borne spotlight synthetic aperture radar 显示文摘 | Ding Zegang Long Teng Zeng Tao | 2008 | Advances in Space Research2008，41，： | 1 |
| 8 | A DBS Doppler Centroid Estimation Algorithm Based on Entropy Minimization显示文摘 | Long Teng Lu Zheng Ding Zegang | 2011 | IEEE Transactions on Geoscience and Remote Sensing2011，49，10： | 1 |
| 9 | Deramp range migra- tion processing for space-borne spotlight SAR 显示文摘 | Zegang Ding Teng Long Tao Zeng | 2008 | Advances in Space Research2008，41，11： | 1 |
| 10 | Improved Motion Compensation Approach for Squint Airborne SAR 显示文摘 | Ding Zegang Liu Luosi Zeng Tao | 2013 | IEEE Transactions on Geoscience and Remote Sensing2013，51，8： | 1 |
| 11 | Improved Stepped-Frequency SAR Imaging Algorithm With the Range Spectral-Length Extension Strategy 显示文摘 | Tao Zeng Liu Luosi Ding Zegang | 2012 | Selected Topics In Applied Earth Observations And Remote Sensing2012，5，5： | 1 |
| 12 | Editorial显示文摘Metabolism is the basic activity of life.Two international conferences,including the 4th International Conference on Plant Metabolism(ICPM2017,http://gffzzcb1b8d6db44943e3h96xqxvcoxofk6cpq.ffgz.tsg.suse.edu.cn/2017/icpm.asp),and the 13th International Meeting on Biosynthesis,Function and Synthetic Biology of Isoprenoids(TERPNET2017,http://gffzzcb1b8d6db44943e3h96xqxvcoxofk6cpq.ffgz.tsg.suse.edu.cn/2017/terpnet.asp)were concurrently convened side by side in Dalian from July 16 to 20,2017.The two conferences were scheduled with independent programs to keep their traditional style,but also arranged | Cheng HU Zegang DING Teng LONG Stephen HOBBS Andrea MONTI GUARNIERI Antoni BROQUETAS | 2017 | Science China(Information Sciences)2017，60，6： | 0 |
| 13 | Beam scan mode analysis and design for geosynchronous SAR显示文摘The beam velocity of geosynchronous synthetic aperture radar(GEO SAR) varies seriously with the orbital position and the scene position, which leads to a significant variation of the scene length and the azimuth resolution in the stripmap(SM) mode. To obtain uniform scene length and azimuth resolution, beam scan modes can be utilized in GEO SAR, such as the sliding spotlight(SLL) mode and the terrain observation by progressive scans(TOPS) mode. However, the conventional design method of the beam scan mode is based on the straight line model(SLM), which does not consider the effects of the curved satellite track and the spherical earth surface. To solve this problem, a curvature circle model(CCM) is proposed considering the actual satellite-earth relationship. By using the CCM, the beam velocity after the beam scan is derived. The scene length and the azimuth resolution are analyzed. The SLL mode and the TOPS mode are recommended for GEO SAR. After that, a design method of the beam scan mode is proposed based on the CMM. The performance of the proposed method is verified by computer simulations. | Wei YIN Zegang DING Xiaojun LU Yu ZHU | 2017 | Science China(Information Sciences)2017，60，6： | 0 |
| 14 | A novel DEM reconstruction strategy based on multi-frequency In SAR in highly sloped terrain显示文摘Interferometric Synthetic Aperture Radar(InSAR)has been proposed as a technique for the reconstruction of the Digital Elevation Model(DEM),which is widely used in global terrain mapping mission[1].The DEM reconstruction methods of In SAR technique are usually based on the so-called phase unwrapping(PU)operation.In highly sloped terrain,the interferometric phase gradients(IPG)of the adjacent pixels are more thanπ.Therefore,the traditional PU | Tao ZENG Tiandong LIU Zegang DING Qi ZHANG Zhen WANG Teng LONG | 2017 | Science China(Information Sciences)2017，60，8： | 0 |
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