ID 原文 译文
25645 结果表明,高温烧结合成了单一的铪酸钆物相,烧结过程中当一种 Gd3 +价稀土氧化钆掺入Hf4 +价的过渡金属氧化铪时,会发生离子置换固溶,为了保持铪酸钆晶格的电中性,晶格中就会产生一个氧空位。 The analysis results show that the single Gd2Hf2O7 phase has formed in the high sintering temperature. When the Gd3 +valences Gd2O3 doped the Hf4 +valences HfO2, the substitutional solid solution will be formed. In order to maintain the electrical neutrality of the Gd2Hf2O7 lattice, an oxygen vacancy will be generated in the lattice.
25646 当阴极在激活、老练、热发射测试时,会加速氧空位的生成,产生的氧空位越多,阴极表面导电性就会越好,这间接降低了逸出功,从而提高了阴极的热发射能力。 During the cathode acti-vating, aging, and thermally testing, the oxygen vacancy will be generated fast. The more oxygen vacancies are obtained, the better the conductivity of the cathode surface has. Besides,the work function of the cathode can also be reduced due to the improvement of the electro-conductivity that enhances the thermionic emission capability of the cathode.
25647 采用 40nm CMOS 工艺设计了一款在 250MS/s 采样率下具有 1. 8Vpp 满摆幅和低谐波失真性能的流水线 ADC (Analog-to-Digital Converter)。 This paper presents a 250MS /s pipelined ADC with 1. 8Vpp full scale and low harmonic distortion imple-mented in 40nm CMOS.
25648 针对传统源跟随器结构的输入缓冲器在大摆幅下驱动大采样电容时线性度恶化的问题,采用了改进型电流注入技术和漏端电压自举技术。 To reduce the large distortion of the conventional source follower when it drives a large sampling capacitor at a large swing, an improved current injection technique and a drain voltage boots trapping technique were employed.
25649 ADC 中实现采样和电荷转移功能的开关采用薄栅器件设计,其工作电压由片上 LDO(Low Dropout Regulator)提供,在降低开关寄生和电荷注入的同时保障了器件的可靠性。 Switches used for sampling and charge transfer in the ADC were implemented with thin-oxide devices to reduce the parasitic capacitance and charge injection. Moreover, on-chip LDOs were applied to provide safe supply voltages for these switches to protect thin-oxide devices from reliability problems.
25650 测试结果表明,对于 10. 1MHz 单音输入,该 ADC 1dBFS 下的信噪失真比、无杂散动态范围和总谐波失真分别为68. 3dB、76. 4dBc、- 75. 1dBc,在 1. 57dBFS 下的信噪失真比、无杂散动态范围和总谐波失真分别达 68. 3dB、80. 1dBc、- 78. 6dBc。 Test results show that with a 10. 1MHz input, the ADC achieves the signal-to-noise and distortion (SNDR) of 68. 3dB, the spurious free dynamic range (SFDR)of 76. 4dBc and the total harmonic distortion (THD) of 75. 1dBc at 1dBFS, and it achieves 68. 3dB SNDR, 80. 1dBc SFDR and 78. 6dBcTHD at 1. 57dBFS.
25651 作为一个开源项目托管平台,GitHub 以多开发者协同参与进行开源项目的开发,开发者作为 GitHub 的核心元素,保证了整个系统的活跃性,然而,很多新项目在短时间内无法找到合适的协同开发者而被拖延开发周期。 As an open source project hosting platform, GitHub participates in the development of open source projects with multi-developers. As the core element of GitHub, developers ensure the activity of the whole system. However, many new projects can not find suitable collaborative developers in a short time and the development cycle gets delayed.
25652 针对这个问题,本文提出了一种基于 Word2Vec CNN-LSTM 开发者项目推荐模型,该模型以 Word2Vec 训练开发者访问项目的序列,并将项目进行向量化表示,结合 CNN-LSTM 模型计算项目相似度并为开发者推荐合适的项目序列。 To solve this problem, this paper proposes a CNN-LSTM developer project recommendation model based on Word2Vec, which trains developers to access the project sequence by Word2Vec, and vectorizes the project, calculates the project similarity with CNN-LSTM model, and recommends the appropriate project sequence for developers.
25653 通过提取 GitHub 62,031 个开发者在 2015 全年的项目访问数据进行项目预测和相似项目发现实验,实验结果表明,该模型推荐效果较佳,并且可以帮助开发者发现感兴趣的相似项目。 Through the project prediction and similar project discovery experiments based on 62,031 developers' project access data in GitHub in 2015, the experimental results show that the model has better recommendation effect and can help developers find similar projects of interest.
25654 低密度奇偶校验(Low Density Parity Check,LDPC)码的译码算法在 FPGA 实现时常采用整数量化操作,产生误差引起译码性能降低。 The decoding algorithm of LDPC codes is often implemented by integer quantization in FPGA, which leads to the degradation of decoding performance.