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基于开放源代码的硬件设计方法研究

电子与信息学报 2007年第7期29卷 1761-1764页

作者：麦宋平张春杨昆王志华清华大学电子工程系北京100084 清华大学微电子所北京100084

可重用性是当今超大规模集成电路设计的必要元素。与传统的封闭源代码付费IP相比,开源硬件以共享设计文档和IP模块的方式为硬件设计的重用提供了更加彻底有效的解决办法。基于开源硬件的SoC设计方法以其开放性和灵活性正被越来越多的设... 详细信息

可重用性是当今超大规模集成电路设计的必要元素。与传统的封闭源代码付费IP相比,开源硬件以共享设计文档和IP模块的方式为硬件设计的重用提供了更加彻底有效的解决办法。基于开源硬件的SoC设计方法以其开放性和灵活性正被越来越多的设计者所接受并付诸实用。该文对开源硬件的相关概念、意义、面临的问题及发展前景进行了较为详细的介绍,并以开源处理器的设计作为实例,对基于开源硬件的设计流程进行了深入的探讨。

关键词：开放源代码开源硬件处理器设计设计流程设计方法学

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一个嵌入式多媒体应用平台的设计与实现

微电子学 2006年第4期36卷 510-513页

作者：麦宋平张春杨昆王志华清华大学电子工程系北京100084 清华大学微电子所北京100084

提出了一个嵌入式多媒体应用平台,并详细介绍了它的设计与实现。该平台是一个基于MIPS架构的标量RISC,具有哈佛结构,5级流水线,虚拟内存管理,以及增强的多媒体处理能力。其最大特点是一个支持不对齐数据存取和二维DMA传送的数据路径,以... 详细信息

提出了一个嵌入式多媒体应用平台,并详细介绍了它的设计与实现。该平台是一个基于MIPS架构的标量RISC,具有哈佛结构,5级流水线,虚拟内存管理,以及增强的多媒体处理能力。其最大特点是一个支持不对齐数据存取和二维DMA传送的数据路径,以及分离的片上指令和数据存储器。这种特殊的结构极大地提高了多媒体处理中常见的不对齐数据和块数据的存取效率。该处理器平台在UMC 0.18μm标准CMOS工艺下流片实现。

关键词：专用集成电路嵌入式多媒体应用平台多媒体处理不对齐数据存取二维DMA传送

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一种邻域嵌入超分辨率算法

微电子学与计算机 2017年第2期34卷 10-14页

作者：赵阳李国林谢翔麦宋平清华大学微电子系北京100084 清华大学电子系北京100084

邻域嵌入算法是一种基于学习的超分辨率算法,但是存在图像特征计算复杂和分类搜索难度大的问题.本文提出了一种基于二阶梯度比例特征的邻域嵌入超分辨率算法,其图像特征简单,分类和搜索复杂度低,同时图像库存储量小,适合于硬件实现.实... 详细信息

邻域嵌入算法是一种基于学习的超分辨率算法,但是存在图像特征计算复杂和分类搜索难度大的问题.本文提出了一种基于二阶梯度比例特征的邻域嵌入超分辨率算法,其图像特征简单,分类和搜索复杂度低,同时图像库存储量小,适合于硬件实现.实验结果表明,与传统超分辨率算法相比,本文算法重建的高分辨率图像具有更丰富的纹理和更锐利的边缘,具有更好的主客观质量.

关键词：图像处理超分辨率邻域嵌入硬件

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一种基于DSP的人工耳蜗语音处理器设计

电子设计工程 2013年第6期21卷 113-116页

作者：张树威梁蓓麦宋平贵州大学理学院贵州贵阳550025 清华大学深圳研究生院广东深圳518055

传统的人工耳蜗语音处理器采用ASIC设计,投入成本高,可移植性差,设计了一种基于TMS320VC5509A的人工耳蜗语音处理器。该处理器采用双麦克风接受语音信号,实现了语音信号的自适应噪声消除和CIS(Continuous Interleaved Sampling)方案。... 详细信息

传统的人工耳蜗语音处理器采用ASIC设计,投入成本高,可移植性差,设计了一种基于TMS320VC5509A的人工耳蜗语音处理器。该处理器采用双麦克风接受语音信号,实现了语音信号的自适应噪声消除和CIS(Continuous Interleaved Sampling)方案。同一段语音由DSP采样处理得到的刺激脉冲与MATLAB采样处理的结果基本相同。实验结果表明,基于DSP的人工耳蜗语音处理器能实现语音信号中噪声的消除并得到良好的刺激脉冲。

关键词： DSP 人工耳蜗自适应噪声消除语音处理器

Identification of a dual functional betulinic acid analog for the treatment of osteoarthritis by phenotypic screening

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Science China Life Sciences 2025年第1期 300-302页

作者： Ze-Min Lin mai Xiang Wen-Hui Wei Shu-Hui Fan Li Chen Jie Wang Xiao-Qian Yang Chun-Hao Yang Shi-Jun He Jian-ping Zuo Laboratory of Immunopharmacology State Key Laboratory of Drug ResearchShanghai Institute of Materia MedicaChinese Academy of Sciences School of Pharmacy University of Chinese Academy of Sciences School of Pharmacy Nanjing University of Chinese Medicine State Key Laboratory of Drug Research Department of Medicinal ChemistryShanghai Institute of Materia MedicaChinese Academy of Sciences Innovation Research Institute of Traditional Chinese Medicine Shanghai University of Traditional Chinese Medicine Experiment Center for Science and Technology Shanghai University of Traditional Chinese Medicine

Dear Editor, Phenotypic drug discovery, which observes compound effects on physiology,has given way to targeting specific molecules, but has revived by using modern methods to find drugs based on therapeutic outcomes in disease models(Vincent et al., 2022). Osteoarthritis(OA) is a prevalent chronic joint disorder, primarily affecting knee joints, with osteoclast activation due to low-grade inflammation resulting in increased bone resorption and structural changes in the joint(Katz et al.,2021).

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Efficient and Stable Perovskite Solar Cells and Modules Enabled by Tailoring Additive Distribution According to the Film Growth Dynamics

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Nano-Micro Letters 2025年第2期17卷 387-400页

作者： Mengen Ma Cuiling Zhang Yujiao Ma Weile Li Yao Wang Shaohang Wu Chong Liu Yaohua mai Institute of New Energy Technology College of Physics&Optoelectronic EngineeringJinan UniversityGuangzhou 510632People’s Republic of China Key Laboratory of New Semiconductors and Devices of Guangdong Higher Education Institutes Jinan UniversityGuangzhou 510632People’s Republic of China Guangdong Mellow Energy Co. LimitedYuanming RoadZhuhai 519075GuangdongPeople’s Republic of China

Gas quenching and vacuum quenching process are widely applied to accelerate solvent volatilization to induce nucleation of perovskites in blade-coating *** this work,we found these two pre-crystallization processes lead to different order of crystallization dynamics within the perovskite thin film,resulting in the differences of additive *** then tailor-designed an additive molecule named 1,3-bis(4-methoxyphenyl)thiourea to obtain films with fewer defects and holes at the buried interface,and prepared perovskite solar cells with a certified efficiency of 23.75%.Furthermore,this work also demonstrates an efficiency of 20.18%for the large-area perovskite solar module(PSM)with an aperture area of 60.84 cm^(2).The PSM possesses remarkable continuous operation stability for maximum power point tracking of T_(90)>1000 h in ambient air.

关键词： Gas quenching Additive distribution Buried passivation Blade coating Crystallization dynamics

Petrology and organic geochemistry of the Baishaping and Damaidi Devonian cutinitic liptobioliths,west of the Kangdian Uplift,China

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Petroleum Science 2022年第5期19卷 1978-1992页

作者： Dao-Fu song Tie-Guan Wang ping Li mai Zhang An-Liang Liu Jia-Dong Yan State Key Laboratory of Petroleum Resources and Prospecting China University of PetroleumBeijing 102249China

Devonian cutinitic liptobiolith is a special type of coal formed during the early evolutionary stage of land *** Baishaping and Damaidi Devonian coals are notable for their distinct papery,sheet-like texture,and unusually high cutinite content(>50%),belonging to typical cutinitic *** are bituminous coals and have a suppressed vitrinite *** with typical typeⅢkerogen,these liptobioliths are characterized by extremely high yields of volatile matter and high hydrogen contents owing to their enhanced cutinite *** indicated by pyrolysis and elemental analysis results,the Devonian cutinitic liptobioliths are dominated by typeⅠ-Ⅱkerogens and have an excellent potential to generate liquid *** Baishaping cutinitic liptobioliths are mainly composed of ribbon-like thick-walled cutinites,with small amounts of thin-walled *** is only present in trace amounts and is dominated by ***,the Damaidi Devonian coals are primarily composed of ribbon-like thin-walled cutinites,followed by collotelinites which are usually sandwiched by *** different petrological characteristics of the Baishaping and Damaidi liptobioliths might indicate a structural variation in the coal-forming plant cuticles and two distinct coal-forming *** molecular bio markers in the Devonian coals are mainly composed of C_(18)-C_(20)tetracyclic diterpenoids,which are assumed to be the dominant soluble constituent of the Devonian land-plant cuticles and might have played an important role in early land plant *** molecules include aromatic tetracyclic diterpenoids,3-5 ring polycyclic aromatic hydrocarbons and their methylated counterparts,and C_(16)-and C_(18)-monocarboxylic acids.n-Alkanes are present only in small *** molecular composition of the cutinite-rich coals is unexpected,because cuticular waxes are one of the most important sources of *** general,the petrology and geochemistry

关键词： Coal chemistry Macerals Hydrocarbon potential Plant cuticles Tetracyclic diterpenoids

Synthesis of anti-vicinal diboronates from diarylethynes and B2pin2

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Science Bulletin 2019年第22期64卷 1685-1690页

作者： Zhijie Kuang Shaoyu mai Kai Yang Qiuling song Institute of Next Generation Matter Transformation College of Chemical Engineering and College of Material Sciences EngineeringHuaqiao UniversityXiamen 361021China Key Laboratory of Molecule Synthesis and Function Discovery Fujian Province UniversityCollege of Chemistry at Fuzhou UniversityFuzhou 350108China

Anti-vicinal diboronates were fabricated from easily available diarylethynes and B2pin2via a basecatalyzed domino-borylation-protodeboronation(DBP)strategy under transition-metal-free *** the standard conditions,reactants with a range of different classes of functional groups on the rings,such as Me O,Me S,CF3O,Me2N,TMS,I,Br,Cl,F,and the thiophene ring,were *** transformation of the vicinal diboronates provided a facile pathway for obtaining vicinal diols by mild oxidation with Na BO3,and a new deuteriation technique was developed in order to acquire1,2-diarylethanes-1,2-d2and 1,2-diarylethanes-1,1,2,*** new deuteriation strategy developed in this study may provide a new research direction for deuteriation chemistry.

关键词： Base-catalyzed Diastereo-selective Anti-vicinal diboronates Domino-borylation-protodeboronation Diarylethynes

Diffusion Dynamics of Cux Cluster on Cu（111） Surface

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Chinese Journal of Chemical Physics 2008年第1期21卷 27-31页

作者： Jian-feng Tang mai-chang Xu Xue-song Li Wo-yun Long Department of Applied Physics Hunan Agricultural University Changsha 410128 China Department of Maths and Physics Hunan Institute of Engineering Xiangtan 411104 China

The diffusion dynamics of small two-dimensional atomic clusters Cux （1≤x≤8） on Cu（lll） surface were studied using the molecular dynamics simulations and a modified analytic embedded-atom method in the temperature range from 200 K to 800 K. The cluster size and temperature dependence of the diffusion coefficients and migration energies are presented. Our simulations show that the diffusion migration energy of the CuT cluster is the highest and the prefactor for the CuT cluster is almost three orders of magnitude larger than that for single atom diffusion. This conclusion is consistent with the experimental results for similar metals. In addition, the dependence of cluster diffusion on film growth is also discussed.

关键词： Cluster Molecular dynamics Surface diffusion