2022 27th Asia and South Pacific Design Automation Conference (ASP-DAC)最新文献

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A Fast and Accurate Middle End of Line Parasitic Capacitance Extraction for MOSFET and FinFET Technologies Using Machine Learning 利用机器学习快速准确地提取MOSFET和FinFET中线寄生电容
2022 27th Asia and South Pacific Design Automation Conference (ASP-DAC) Pub Date : 2022-01-17 DOI: 10.1109/asp-dac52403.2022.9712514
Mohamed Saleh Abouelyazid, S. Hammouda, Y. Ismail
{"title":"A Fast and Accurate Middle End of Line Parasitic Capacitance Extraction for MOSFET and FinFET Technologies Using Machine Learning","authors":"Mohamed Saleh Abouelyazid, S. Hammouda, Y. Ismail","doi":"10.1109/asp-dac52403.2022.9712514","DOIUrl":"https://doi.org/10.1109/asp-dac52403.2022.9712514","url":null,"abstract":"A novel machine learning modeling methodology for parasitic capacitance extraction of middle-end-of-line metal layers around FinFETs and MOSFETs is developed. Due to the increasing complexity and parasitic extraction accuracy requirements of middle-end-of-line patterns in advanced process nodes, most of the current parasitic extraction tools rely on field-solvers to extract middle-end-of-line parasitic capacitances. As a result, a lot of time, memory, and computational resources are consumed. The proposed modeling methodology overcomes these problems by providing compact models that predict middle-end-of-line parasitic capacitances efficiently. The compact models are pre-characterized and technology-dependent. Also, they can handle the increasing accuracy requirements in advanced process nodes. The proposed methodology scans layouts for devices, extracts geometrical features of each device using a novel geometry-based pattern representation, and uses the extracted features as inputs to the required machine learning models. Two machine learning methods are used including: support vector regressions and neural networks. The testing covered more than 40M devices in several different real designs that belong to 28nm and 7nm process technology nodes. The proposed methodology managed to provide outstanding results as compared to field-solvers with an average error < 0.2%, a standard deviation < 3%, and a speed up of 100X.","PeriodicalId":239260,"journal":{"name":"2022 27th Asia and South Pacific Design Automation Conference (ASP-DAC)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125530388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
SonicFFT: A system architecture for ultrasonic-based FFT acceleration SonicFFT:基于超声的FFT加速系统架构
2022 27th Asia and South Pacific Design Automation Conference (ASP-DAC) Pub Date : 2022-01-17 DOI: 10.1109/asp-dac52403.2022.9712586
D. A. Patel, V. P. Bui, K. Chai, A. Lal, M. Aly
{"title":"SonicFFT: A system architecture for ultrasonic-based FFT acceleration","authors":"D. A. Patel, V. P. Bui, K. Chai, A. Lal, M. Aly","doi":"10.1109/asp-dac52403.2022.9712586","DOIUrl":"https://doi.org/10.1109/asp-dac52403.2022.9712586","url":null,"abstract":"Fast Fourier Transform (FFT) is an essential algorithm for numerous scientific and engineering applications. It is key to implement FFT in a high-performance and energy-efficient manner. In this paper, we leverage the properties of ultrasonic wave propagation in silicon for FFT computation. We introduce SonicFFT: A system architecture for ultrasonic-based FFT acceleration. To evaluate the benefits of SonicFFT, a compact-model based simulation framework that quantifies the performance and energy of an integrated system comprising of digital computing components interfaced with an ultrasonic FFT accelerator has been developed. We also present mapping strategies to compute 2D FFT utilizing the accelerator. Simulation results show that SonicFFT achieves a $2317times$ system-level energy-delay product benefits-a simultaneous $117.69times$ speedup and $19.69times$ energy reduction-versus state-of-the-art baseline all-digital configuration.","PeriodicalId":239260,"journal":{"name":"2022 27th Asia and South Pacific Design Automation Conference (ASP-DAC)","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122623247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
Efficient Routing in Coarse-Grained Reconfigurable Arrays Using Multi-Pole NEM Relays 基于多极NEM中继的粗粒度可重构阵列的高效路由
2022 27th Asia and South Pacific Design Automation Conference (ASP-DAC) Pub Date : 2022-01-17 DOI: 10.1109/ASP-DAC52403.2022.9712515
Akash Levy, Michael Oduoza, Akhilesh Balasingam, R. Howe, Priyanka Raina
{"title":"Efficient Routing in Coarse-Grained Reconfigurable Arrays Using Multi-Pole NEM Relays","authors":"Akash Levy, Michael Oduoza, Akhilesh Balasingam, R. Howe, Priyanka Raina","doi":"10.1109/ASP-DAC52403.2022.9712515","DOIUrl":"https://doi.org/10.1109/ASP-DAC52403.2022.9712515","url":null,"abstract":"In this paper, we propose the use of multi-pole nanoelectromechanical (NEM) relays for routing multi-bit signals within a coarse-grained reconfigurable array (CGRA). We describe a CMOS-compatible multi-pole relay design that can be integrated in 3-D and improves area utilization by 40% over a prior design. Additionally, we demonstrate a method for placing multiple contacts on a relay that can reduce contact resistance variation by 40 × over a circular placement strategy. We then show a methodology for integrating these relays into an industry-standard digital design flow. Using our multi-pole relay design, we perform post-layout simulation of a processing element (PE) tile within a hybrid CMOS-NEMS CGRA in 40 nm technology. We achieve up to 19% lower area and 10% lower power at iso-delay, compared to a CMOS-only PE tile. The results show a way to bridge the performance gap between programmable logic devices (such as CGRAs) and application-specific integrated circuits using NEMS technology.","PeriodicalId":239260,"journal":{"name":"2022 27th Asia and South Pacific Design Automation Conference (ASP-DAC)","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123033597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Toward Optical Probing Resistant Circuits: A Comparison of Logic Styles and Circuit Design Techniques 抗光探测电路:逻辑风格与电路设计技术之比较
2022 27th Asia and South Pacific Design Automation Conference (ASP-DAC) Pub Date : 2022-01-17 DOI: 10.1109/ASP-DAC52403.2022.9712518
Sajjad Parvin, Thilo Krachenfels, Shahin Tajik, Jean-Pierre Seifert, F. Sill, R. Drechsler
{"title":"Toward Optical Probing Resistant Circuits: A Comparison of Logic Styles and Circuit Design Techniques","authors":"Sajjad Parvin, Thilo Krachenfels, Shahin Tajik, Jean-Pierre Seifert, F. Sill, R. Drechsler","doi":"10.1109/ASP-DAC52403.2022.9712518","DOIUrl":"https://doi.org/10.1109/ASP-DAC52403.2022.9712518","url":null,"abstract":"Laser-assisted side-channel analysis techniques, such as optical probing (OP), have been shown to pose a severe threat to secure hardware. While several countermeasures have been proposed in the literature, they can either be bypassed by an attacker or require a modification in the transistor's fabrication process, which is costly and complex. In this work, firstly, we propose a formulation for the caliber of reflected light from OP. Secondly, we propose circuit design techniques and logic styles to alleviate OP attacks based on our formulation. Finally, we compare several logic families and circuit design techniques in terms of performance and OP security merits. In this regard, we perform simulations to compare the optical beam interaction between the different logic gates. By utilizing our proposed circuit design techniques and dual-rail logic (DRL), the signal-to-noise ratio (SNR) of the reflected light from OP is reduced significantly.","PeriodicalId":239260,"journal":{"name":"2022 27th Asia and South Pacific Design Automation Conference (ASP-DAC)","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117289712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
An Energy-Efficient Bit-Split-and-Combination Systolic Accelerator for NAS-Based Multi-Precision Convolution Neural Networks 基于nas的多精度卷积神经网络的高效位分割组合收缩加速器
2022 27th Asia and South Pacific Design Automation Conference (ASP-DAC) Pub Date : 2022-01-17 DOI: 10.1109/asp-dac52403.2022.9712509
L. Dai, Quanbao Cheng, Yuhang Wang, Gengbin Huang, Junzhuo Zhou, Kai Li, Wei Mao, Hao Yu
{"title":"An Energy-Efficient Bit-Split-and-Combination Systolic Accelerator for NAS-Based Multi-Precision Convolution Neural Networks","authors":"L. Dai, Quanbao Cheng, Yuhang Wang, Gengbin Huang, Junzhuo Zhou, Kai Li, Wei Mao, Hao Yu","doi":"10.1109/asp-dac52403.2022.9712509","DOIUrl":"https://doi.org/10.1109/asp-dac52403.2022.9712509","url":null,"abstract":"Optimized convolutional neural network (CNN) models and energy-efficient hardware design are of great importance in edge-computing applications. The neural architecture search (NAS) methods are employed for CNN model optimization with multi-precision networks. To satisfy the computation requirements, multi-precision convolution accelerators are highly desired. The existing high-precision-split (HPS) designs reduce the additional logics for reconfiguration while resulting in low throughput for low precisions. The low-precision-combination (LPC) designs improve the low-precision throughput with large hardware cost. In this work, a bit-split-and-combination (BSC) systolic accelerator is proposed to overcome the bottlenecks. Firstly, BSC-based multiply-accumulate (MAC) unit is designed to support multi-precision computation operations. Secondly, multi-precision systolic dataflow is developed with improved data-reuse and transmission efficiency. The proposed work is designed by Chisel and synthesized in 28-nm process. The BSC MAC unit achieves maximum 2.40× and 1.64× energy efficiency than HPS and LPC units, respectively. Compared with published accelerator designs Gemmini, Bit-fusion and Bit-serial, the proposed accelerator achieves up to 2.94 × area efficiency and 6.38 × energy-saving performance on the multi-precision VGG-16, ResNet-18 and LeNet-5 benchmarks.","PeriodicalId":239260,"journal":{"name":"2022 27th Asia and South Pacific Design Automation Conference (ASP-DAC)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129868602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Anti-Piracy of Analog and Mixed-Signal Circuits in FD-SOI FD-SOI中模拟和混合信号电路的反盗版
2022 27th Asia and South Pacific Design Automation Conference (ASP-DAC) Pub Date : 2022-01-17 DOI: 10.1109/ASP-DAC52403.2022.9712547
Mariam Tlili, Alhassan Sayed, Doaa Mahmoud, M. Louërat, H. Aboushady, H. Stratigopoulos
{"title":"Anti-Piracy of Analog and Mixed-Signal Circuits in FD-SOI","authors":"Mariam Tlili, Alhassan Sayed, Doaa Mahmoud, M. Louërat, H. Aboushady, H. Stratigopoulos","doi":"10.1109/ASP-DAC52403.2022.9712547","DOIUrl":"https://doi.org/10.1109/ASP-DAC52403.2022.9712547","url":null,"abstract":"We propose an anti-piracy security technique based on locking for analog and mixed-signal circuits designed in FD-SOI. We show that obfuscating the body-bias voltages of tunable transistors is an effective way for inducing high functionality corruption. The obfuscation is achieved by constituting a secret key from the concatenation of the input digital codes of the body-bias generators that produce the correct body-bias voltages. We also propose a slight modification of the body-bias generator that increases prohibitively the time complexity of counter-attacks aiming at finding an approximate key. The proposed locking scheme is demonstrated on a Σ$$ modulator used in highly-digitized RF receiver architectures.","PeriodicalId":239260,"journal":{"name":"2022 27th Asia and South Pacific Design Automation Conference (ASP-DAC)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126913154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
An Efficient Kriging-based Constrained Multi-objective Evolutionary Algorithm for Analog Circuit Synthesis via Self-adaptive Incremental Learning 基于kriging的模拟电路自适应增量学习约束多目标进化算法
2022 27th Asia and South Pacific Design Automation Conference (ASP-DAC) Pub Date : 2022-01-17 DOI: 10.1109/asp-dac52403.2022.9712601
S.-D. Yin, Wenfei Hu, Wenyuan Zhang, Ruitao Wang, Jian Zhang, Yan Wang
{"title":"An Efficient Kriging-based Constrained Multi-objective Evolutionary Algorithm for Analog Circuit Synthesis via Self-adaptive Incremental Learning","authors":"S.-D. Yin, Wenfei Hu, Wenyuan Zhang, Ruitao Wang, Jian Zhang, Yan Wang","doi":"10.1109/asp-dac52403.2022.9712601","DOIUrl":"https://doi.org/10.1109/asp-dac52403.2022.9712601","url":null,"abstract":"In this paper, we propose an efficient Kriging-based constrained multi-objective evolutionary algorithm for analog circuit synthesis via self-adaptive incremental learning. The incremental learning technique is introduced to reduce time complexity of training the Kriging model from $O(n^{3})$, to $O(n^{2})$, where $n$ is the number of training points. The proposed approach reduces the total optimization time in three aspects. First, by reusing the previously trained models, a self-adaptive incremental learning strategy is applied to reduce the training time of the Kriging model. Second, we use non-dominated sorting and modified crowding distance to prescreen the most promising one to be simulated, which largely reduce the number of simulations. Third, as there is no internal optimization, the prediction time of the Kriging model is saved. Experimental results on two real-world circuits demonstrate that compared with the state-of-the-art multi-objective Bayesian optimization, our method can reduce the training time of Kriging model by 95% and the prediction time by 99.7% without surrendering optimization results. Compared with NSGA-II and MOEA/D, the proposed method can achieve up to 10X speed up in terms of the total optimization time while achieving better results.","PeriodicalId":239260,"journal":{"name":"2022 27th Asia and South Pacific Design Automation Conference (ASP-DAC)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130641885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Techniques for CAD Tool Parameter Auto-tuning in Physical Synthesis: A Survey (Invited Paper) 物理合成中CAD工具参数自动调整技术综述(特邀论文)
2022 27th Asia and South Pacific Design Automation Conference (ASP-DAC) Pub Date : 2022-01-17 DOI: 10.1109/asp-dac52403.2022.9712495
Hao Geng, Tinghuan Chen, Qi Sun, Bei Yu
{"title":"Techniques for CAD Tool Parameter Auto-tuning in Physical Synthesis: A Survey (Invited Paper)","authors":"Hao Geng, Tinghuan Chen, Qi Sun, Bei Yu","doi":"10.1109/asp-dac52403.2022.9712495","DOIUrl":"https://doi.org/10.1109/asp-dac52403.2022.9712495","url":null,"abstract":"As the technology node of integrated circuits rapidly goes beyond 5nm, synthesis-centric modern very large-scale integration (VLSI) design flow is facing ever-increasing design complexity and suffering the pressure of time-to-market. During the past decades, synthesis tools have become progressively sophisticated and offer countless tunable parameters that can significantly influence design quality. Nevertheless, owing to the time-consuming tool evaluation plus a limitation to one possible parameter combination per synthesis run, manually searching for optimal configurations of numerous parameters proves to be elusive. What's worse, tiny perturbations to these parameters can result in very large variations in the Quality-of-Results (QoR). Therefore, automatic tool parameter tuning to reduce human cost and tool evaluation cost is in demand. Machine-learning techniques provide chances to enable the auto-tuning process of tool parameters. In this paper, we will survey the recent pace of progress on advanced parameter auto-tuning flows of physical synthesis tools. We sincerely expect this survey can enlighten the future development of parameter auto-tuning methodologies.","PeriodicalId":239260,"journal":{"name":"2022 27th Asia and South Pacific Design Automation Conference (ASP-DAC)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128036293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
XBM: A Crossbar Column-wise Binary Mask Learning Method for Efficient Multiple Task Adaption 一种有效的多任务自适应交叉栏式二元掩码学习方法
2022 27th Asia and South Pacific Design Automation Conference (ASP-DAC) Pub Date : 2022-01-17 DOI: 10.1109/asp-dac52403.2022.9712508
Fan Zhang, Li Yang, Jian Meng, Yu Cao, Jae-sun Seo, Deliang Fan
{"title":"XBM: A Crossbar Column-wise Binary Mask Learning Method for Efficient Multiple Task Adaption","authors":"Fan Zhang, Li Yang, Jian Meng, Yu Cao, Jae-sun Seo, Deliang Fan","doi":"10.1109/asp-dac52403.2022.9712508","DOIUrl":"https://doi.org/10.1109/asp-dac52403.2022.9712508","url":null,"abstract":"Recently, utilizing ReRAM crossbar array to accelerate DNN inference on single task has been widely studied. However, using the crossbar array for multiple task adaption has not been well explored. In this paper, for the first time, we propose XBM, a novel crossbar column-wise binary mask learning method for multiple task adaption in ReRAM crossbar DNN accelerator. XBM leverages the mask-based learning algorithm's benefit to avoid catastrophic forgetting to learn a task-specific mask for each new task. With our hardware-aware design innovation, the required masking operation to adapt for a new task could be easily implemented in existing crossbar based convolution engine with minimal hardware/ memory overhead and, more importantly, no need of power hungry cell re-programming, unlike prior works. The extensive experimental results show that compared with state-of-the-art multiple task adaption methods, XBM keeps the similar accuracy on new tasks while only requires 1.4% mask memory size compared with popular piggyback. Moreover, the elimination of cell re-programming or tuning saves up to 40% energy during new task adaption.","PeriodicalId":239260,"journal":{"name":"2022 27th Asia and South Pacific Design Automation Conference (ASP-DAC)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122284544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Signal-Integrity-Aware Interposer Bus Routing in 2.5D Heterogeneous Integration 2.5D异构集成中信号完整性感知的中间总线路由
2022 27th Asia and South Pacific Design Automation Conference (ASP-DAC) Pub Date : 2022-01-17 DOI: 10.1109/asp-dac52403.2022.9712482
Sung-Yun Lee, Daeyeon Kim, Kyungjun Min, Seokhyeong Kang
{"title":"Signal-Integrity-Aware Interposer Bus Routing in 2.5D Heterogeneous Integration","authors":"Sung-Yun Lee, Daeyeon Kim, Kyungjun Min, Seokhyeong Kang","doi":"10.1109/asp-dac52403.2022.9712482","DOIUrl":"https://doi.org/10.1109/asp-dac52403.2022.9712482","url":null,"abstract":"We propose a fast interposer bus router that observes the complex design rules of silicon interposer layers and optimizes the signal integrity. By escaping highly integrated physical layers (PHYs) of chiplets and sharing the same bus topology, our router compactly interconnects thousands of bump I/Os within a short timeframe. In addition, we secure the maximum wire pitch and guard the signal wires to optimize the signal integrity in high bandwidth. Compared with the results of a commercial EDA tool, our router is about five times faster and the results are verified to transmit signal in a target data rate with 30% improved eye width and 35% improved eye height for industrial designs. Our router can provide practical routing results for the upcoming 2.5D ICs that have more chiplets and require higher bandwidth than the existing chips.","PeriodicalId":239260,"journal":{"name":"2022 27th Asia and South Pacific Design Automation Conference (ASP-DAC)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131352364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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