A high-performance, distributed, complex-event processing en- gine with improved scalability is proposed. In this new engine, the stateless proeessing node is combined with distributed stor- age so that scale and perf...A high-performance, distributed, complex-event processing en- gine with improved scalability is proposed. In this new engine, the stateless proeessing node is combined with distributed stor- age so that scale and performance can be linearly expanded. This design prevents single node failure and makes the system highly reliable.展开更多
In this paper, TiN/A1Ox gated A1GaN/GaN metal-oxide-semiconductor heterostructure field-effect transistors （MOS- HFETs） were fabricated for gate-first process evaluation. By employing a low temperature ohmic process...In this paper, TiN/A1Ox gated A1GaN/GaN metal-oxide-semiconductor heterostructure field-effect transistors （MOS- HFETs） were fabricated for gate-first process evaluation. By employing a low temperature ohmic process, ohmic contact can be obtained by annealing at 600 ℃ with the contact resistance approximately 1.6 Ω.mm. The ohmic annealing process also acts as a post-deposition annealing on the oxide film, resulting in good device performance. Those results demonstrated that the TiN/A1Ox gated MOS-HFETs with low temperature ohmic process can be applied for self-aligned gate AIGaN/GaN MOS-HFETs.展开更多
提出一种基于Yarn云平台的基因启发式多序列比对算法。建立核酸替换等价矩阵作为基因启发式数学模型,构建Yarn云平台逻辑架构,通过对基因数据预处理、基因数据存储、基因序列比对、基因数据管理、基因数据分析等步骤,对数据分类保存,划...提出一种基于Yarn云平台的基因启发式多序列比对算法。建立核酸替换等价矩阵作为基因启发式数学模型,构建Yarn云平台逻辑架构,通过对基因数据预处理、基因数据存储、基因序列比对、基因数据管理、基因数据分析等步骤,对数据分类保存,划分错误率较高的长序列,得到多个较短的基因片段。对不同片段实施定位,将其中的变长种子生成,进行骨架构建和孔隙填补,可以实现基因启发式多序列比对。结果表明,设计的算法在不同数据集下处理时间缩短,多序列比对SP(Sum of Pairs)的分值较高,实验验证了该多序列比对方法具有很好的应用价值。展开更多
Traditional range-dependency compensation space time adaptive processing(STAP)methods usually involve aligning the clutter spectrums in a certain point to reduce the clutter non-homogeneity.A novel compensation STAP m...Traditional range-dependency compensation space time adaptive processing(STAP)methods usually involve aligning the clutter spectrums in a certain point to reduce the clutter non-homogeneity.A novel compensation STAP method is proposed as an improved Doppler warping(DW)method for airborne radar with non-sidelooking radar.This method facilitates DW method to bring clutter spectrum of different range gates together in the mainlobe and subsequently compensation to accomplish space angle of different range gates alignment at multiple Doppler bins.Simulation results show that the proposed method can further reduce the clutter non-homogeneity of non-sidelooking array and significantly outperform traditional algorithms with only a little increase of the computation load.展开更多
文摘A high-performance, distributed, complex-event processing en- gine with improved scalability is proposed. In this new engine, the stateless proeessing node is combined with distributed stor- age so that scale and performance can be linearly expanded. This design prevents single node failure and makes the system highly reliable.
基金Project supported by the International Science and Technology Collaboration Program of China(Grant No.2012DFG52260)
文摘In this paper, TiN/A1Ox gated A1GaN/GaN metal-oxide-semiconductor heterostructure field-effect transistors （MOS- HFETs） were fabricated for gate-first process evaluation. By employing a low temperature ohmic process, ohmic contact can be obtained by annealing at 600 ℃ with the contact resistance approximately 1.6 Ω.mm. The ohmic annealing process also acts as a post-deposition annealing on the oxide film, resulting in good device performance. Those results demonstrated that the TiN/A1Ox gated MOS-HFETs with low temperature ohmic process can be applied for self-aligned gate AIGaN/GaN MOS-HFETs.
文摘提出一种基于Yarn云平台的基因启发式多序列比对算法。建立核酸替换等价矩阵作为基因启发式数学模型,构建Yarn云平台逻辑架构,通过对基因数据预处理、基因数据存储、基因序列比对、基因数据管理、基因数据分析等步骤,对数据分类保存,划分错误率较高的长序列,得到多个较短的基因片段。对不同片段实施定位,将其中的变长种子生成,进行骨架构建和孔隙填补,可以实现基因启发式多序列比对。结果表明,设计的算法在不同数据集下处理时间缩短,多序列比对SP(Sum of Pairs)的分值较高,实验验证了该多序列比对方法具有很好的应用价值。
基金Supported by the National Natural Science Foundation of China(61201459,61071165)the National Defense Basic Science Research Scheme(B2520110008)the Program for New Century Excellent Talents in University(NCET-09-0069)
文摘Traditional range-dependency compensation space time adaptive processing(STAP)methods usually involve aligning the clutter spectrums in a certain point to reduce the clutter non-homogeneity.A novel compensation STAP method is proposed as an improved Doppler warping(DW)method for airborne radar with non-sidelooking radar.This method facilitates DW method to bring clutter spectrum of different range gates together in the mainlobe and subsequently compensation to accomplish space angle of different range gates alignment at multiple Doppler bins.Simulation results show that the proposed method can further reduce the clutter non-homogeneity of non-sidelooking array and significantly outperform traditional algorithms with only a little increase of the computation load.
