5篇
您的检索式：作者名="Shuliang Cheng"
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| 1 | Simutaneous radar imaging and velocity measuring with step frequency waveforms显示文摘The principle and method of both radar target imaging and velocity measurement simultaneously based on step frequency waveforms is presented.Velocity compensation is necessary in order to obtain the good High resolution range profile since this waveform is greatly sensitive to the Doppler shift.The velocity measurement performance of the four styles is analyzed with two pulse trains consisted of positive and negative step frequency waveforms.The velocity of targets can be estimated first coarsely by using the pulse trains with positive-positive step frequency combination,and then fine by positive-negative combination.Simulation results indicate that the method can accomplish the accurate estimation of the velocity with efficient computation and good anti-noise performance and obtain the good HRRP simultaneously. | Yuan Haotian Wen Shuliang Cheng Zhen | 2009 | Journal of Systems Engineering and Electronics2009，20，4： | 4 |
| 2 | Phenomenon of methane driven caused by hydraulic fracturing in methane-bearing coal seams显示文摘The methane concentration of the return current will always be enhanced to a certain degree when hydraulic fracturing with bedding drilling is implemented to a gassy coal seam in an underground coal mine. The methane in coal seam is driven out by hydraulic fracturing. Thus, the phenomenon is named as methane driven effect of hydraulic fracturing. After deep-hole hydraulic fracturing at the tunneling face of the gassy coal seam, the coal methane content exhibits a ‘‘low-high-low' distribution along excavation direction in the following advancing process, verifying the existence of methane driven caused by hydraulic fracturing in methane-bearing coal seam. Hydraulic fracturing causes the change of pore-water and methane pressure in surrounding coal. The uneven distribution of the pore pressure forms a pore pressure gradient. The free methane migrates from the position of high pore(methane) pressure to the position of low pore(methane) pressure. The methane pressure gradient is the fundamental driving force for methane-driven coal seam hydraulic fracturing. The uneven hydraulic crack propagation and the effect of time(as some processes need time to complete and are not completed instantaneously) will result in uneven methane driven. Therefore, an even hydraulic fracturing technique should be used to avoid the negative effects of methane driven; on the other hand, by taking fully advantage of methane driven, two technologies are presented. | Huang Bingxiang Cheng Qingying Chen Shuliang | 2016 | International Journal of Mining Science and Technology2016，26，5： | 2 |
| 3 | Epi demiology of chronic cutaneous wounds in China显示文摘 | Jiang Yufeng Huang Sha Fu Xiaobing Liu Hongwei Ran Xingwu Lu Shuliang Hu Dahai Li Qiang Zhang Hongwei Li Ying Wang Runxiu Xie Ting Cheng Biao Wang Ling {eng Liu Yi Ye Xiangbai Han Chunmao Chen Huade | 2011 | Wound Rep Reg2011，，19： | 1 |
| 4 | Design and Wave Propagation Characterization of Starchiral Metamaterials显示文摘Metamaterials with simple artificial topological properties made from industrially produced single-phase materials have extraordinary innovation and challenge.In this paper,we investigated wave propagation characteristics of a hexastarchiral lattice metamaterial with periodic assemblies and used the finite element(FE)method to study the band gap properties.Then,in order to understand the mechanism of band gaps,we discussed the mode shapes of unit cells and found that the bending of the ligament and the overall rotation have a high correlation with the generation of omnidirectional band gaps.The relationships bet ween geometric parameters and band gap properties have also been systematically studied,which demonstrated that the band gaps of the proposed metamaterial could be reasonably predicted through the evolution of geometric parameters.Finally,the transmission characteristics of finite sandwich panel structures composed of periodic unit cells were calculated to verify the correctness of the band gap simulation results,which proved that the proposed artificial metastructure has potential application value in vibration and noise reduction projects. | Yajun Xin Han Wang Cong Wang Jinxin Yao Qian Ding Haoqiang Gao Shuliang Cheng Yongtao Sun | 2022 | Acta Mechanica Solida Sinica2022，35，2： | 0 |
| 5 | 一种设计的抗癌多肽调控p53的两种翻译后修饰显示文摘文章简介蛋白质的翻译后修饰可能对蛋白质的表达和功能产生影响,同时也是重要的药物靶标。现有的方法通常只调控单一类型的翻译后修饰。本研究报道了一种同时调控两种翻译后修饰的多肽。 | 梁纶熙 王焕彬 Hubing Shi Zhaoli Li Han Yao Zhigao Bu Ningning Song Chushu Li Dabin Xiang Yao Zhang Jilin Wang Ye Hu Qi Xu Yanlei Ma Zhongyi Cheng Yingchao Wang Shuliang Zhao Jin Qian Yingxuan Chen Jing-Yuan Fang 许杰 | 2019 | 科学新闻2019，0，2： | 0 |
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