Now showing items 21-40 of 22534

    • 1-(2′-Anilinyl)prop-2-yn-1-ol rearrangement for oxindole synthesis 

      Kothandaraman, Prasath; Koh, Bing Qin; Limpanuparb, Taweetham; Hirao, Hajime; Chan, Philip Wai Hong (2013)
      A synthetic method that relies on NIS (N-iodosuccinimide)-mediated cycloisomerization reactions of 1-(2′-anilinyl)prop-2-yn-1-ols to gem-3-(diiodomethyl)indolin-2-ones and 2-(iodomethylene)indolin-3-ones has been developed. ...
    • (1-aryloxy-2-hydroxypropyl)-phenylpiperazine derivatives suppress Candida albicans virulence by interfering with morphological transition 

      Zhao, Shuo; Huang, Jun-Jun; Sun, Xiuyun; Huang, Xiaorong; Fu, Shuna; Yang, Liang; Liu, Xue-Wei; He, Fei; Deng, Yinyue (2018)
      Clinical treatment of Candida albicans infections has become more difficult due to the limited development of antifungal agents and the rapid emergence of drug resistance. In this study, we demonstrate the synthesis of a ...
    • 1-octanol-water partitioning as a classifier of water soluble organic matters: Implication for solubility distribution 

      Kuwata, Mikinori; Lee, Wen-Chien (2017)
      Water-soluble organic matters (WSOMs) play an important role in determining magnitudes of climatic and environmental impacts of organic aerosol particles because of their contributions to hygroscopic growth and cloud ...
    • A 1.2 V 2.4 GHz low spur CMOS PLL synthesizer with a gain boosted charge pump for a batteryless transceiver 

      Boon, Chirn Chye; Krishna, M. Vamshi; Do, Manh Anh; Yeo, Kiat Seng; Do, Aaron V.; Wong, T. S. (2012)
      This paper presents a low power 1.2 V, 2.4 GHz low spur, Quadrature PLL synthesizer for IEEE 802.15.4 batteryless transceiver in CMOS 0.18 μm technology. The PLL employs a 1 MHz fully programmable divider with an improved ...
    • A 1.2-V 1.5-Gb/s 72-Mb DDR3 SRAM 

      Cho, Uk Rae; Kim, Tony Tae-Hyoung; Yoon, Yong-Jin; Lee, Jong Cheol; Bae, Dae Gi; Kim, Nam Seog; Kim, Kang Young; Son, Young Jae; Yang, Jeong Suk; Sohn, Kwon Il; Kim, Sung Tae; Lee, In Yeol; Lee, Kwang Jin; Kang, Tae Gyoung; Kim, Su Chul; Ahn, Kee Sik; Byun, Hyun Geun (2003)
      A 1.2-V 72-Mb double data rate 3 (DDR3) SRAM achieves a data rate of 1.5 Gb/s using dynamic self-resetting ...
    • A 1.2V 80MS/S sample and hold for ADC applications 

      Reddy, Y. Sunil Gavaskar.; Liter, Siek. (2012)
      This Paper presents the design of low voltage sample and hold amplifier for analog to digital converter applications. The proposed design uses double sampling technique to increase the sampling rate, reliable bootstrap ...
    • 1.3-μm In(Ga)As quantum-dot VCSELs fabricated by dielectric-free approach with surface-relief process 

      Xu, D. W.; Yoon, Soon Fatt; Ding, Y.; Tong, Cunzhu; Fan, Weijun; Zhao, L. J. (2011)
      We present the 1.3-μ m In(Ga)As quantum-dot (QD) vertical-cavity surface-emitting lasers (VCSELs) fabricated by the dielectric-free (DF) approach with the surface-relief (SR) process. Compared with the conventional ...
    • A 1.5 +/- 0.39 p+/-/°C Temperature-Compensated LC Oscillator Using Constant-Biased Varactors 

      Wang, Yong; Chai, Kevin T. C.; Mu, Xiaojing; Je, Minkyu; Goh, Wang Ling (2015)
      This letter presents a temperature compensated oscillator for clock generation across a wide temperature range. The proposed technique deploys the characteristics of the constant-biased varactors to nullify the overall ...
    • 1.5°C Too Soon : More Must Be Done 

      Sembiring, Margareth (2018)
      The latest IPCC special report released in early October 2018 estimated that global temperature increase may reach 1.5°C anytime between 2030 and 2050. This is much sooner than the end of the century timeframe set in the ...
    • 1.7 Gbit/in.2 gray-scale continuous-phase-change femtosecond image storage 

      Wang, Q.; Maddock, J.; Rogers, E. T. F.; Roy, T.; Craig, Chris; MacDonald, K. F.; Hewak, D. W.; Zheludev, Nikolay I. (2014)
      We demonstrate high-density, multi-level crystallization of a Ge2Sb2Te5 thin film using tightly focused femtosecond laser pulses. The submicron spots with 8 distinct data storage states are written on a 1.08 μm square grid. ...
    • A 1.8-V 2.4/5.15-GHz dual-band LC VCO in 0.18-μm CMOS technology 

      Jia, Lin; Ma, Jianguo; Yeo, Kiat Seng; Yu, Xiao Peng; Do, Manh Anh; Lim, Wei Meng (2006)
      A dual band, fully integrated, low phase-noise and low-power voltage-controlled oscillator (VCO) operating at the 2.4-GHz industrial scientific and medical band and 5.15-GHz unlicensed national information infrastructure ...
    • A 10-bit 300 kS/s reference-voltage regulator free SAR ADC for wireless-powered implantable medical devices 

      Yang, Yongkui; Zhou, Jun; Liu, Xin; Goh, Wang Ling (2018)
      This paper presents a reference-voltage regulator free successive-approximation-register analog-to-digital converters (SAR ADC) with self-timed pre-charging for wireless-powered implantable medical devices. Assisted by a ...
    • A 10-Gb/s inductor-less variable gain amplifier with a linear-in-dB characteristic and DC-offset cancellation 

      Liu, Chang; Yan, Yuepeng; Goh, Wang Ling; Xiong, Yong-Zhong; Zhang, Lijun; Madihian, Mohammad (2012)
      This paper presents a broadband inductor-less variable gain amplifier (VGA) with a linear-in-dB gain control characteristic and DC-offset cancellation. The proposed VGA is composed of a variable gain block, an exponential ...
    • A 100 GHz transformer-based varactor-less VCO with 11.2% tuning range in 65nm CMOS technology 

      Yi, Xiang; Boon, Chirn Chye; Lin, Jia Fu; Lim, Wei Meng (2012)
      A 100 GHz transformer-based VCO is implemented in a 65nm CMOS technology. The large and linear magnetic tuning is realized by using a triple-coupled transformer. The tuning range of the proposed VCO is from 95.37 GHz to ...
    • 100 THz bandwidth plasmonic metamaterial switch 

      Nalla, Venkatram; Valente, João; Vezzoli, Stefano; Soci, Cesare; Handong, Sun; Zheludev, Nikolay (2015)
      The development of coherent optical networks and processing are catalysing increasing attention as solutions to accelerate the data transfer speed and data processing. Conventional technology in coherent optical networks ...
    • 100 THz broadband optical switching with plasmonic metamaterial 

      Nalla, Venkatram; Vezzoli, Stefano; Valente, João; Soci, Cesare; Sun, Handong; Zheludev, Nikolay (2015)
      The development of coherent optical networks and processing are catalysing increasing attention as solutions to accelerate the data transfer speed and data processing. Conventional technology in coherent optical networks ...
    • 100 THz optical switching with plasmonic metamaterial 

      Venkatram, Nalla; Stefano, Vezzol; João, Valente; Sun, Handong; Nikolay, Zheludev (2015)
      Using femtosecond laser with variable pulse duration we probe the limits of switching that exploits coherent absorption in nanostructured gold films. Switching contrast ratios of 7:1 with a modulation bandwidth exceeding ...
    • A 100-Channel 1-mW Implantable Neural Recording IC 

      Zou, Xiaodan; Liu, Lei; Cheong, Jia Hao; Yao, Lei; Li, Peng; Cheng, Ming-Yuan; Goh, Wang Ling; Rajkumar, Ramamoorthy; Dawe, Gavin Stewart; Cheng, Kuang-Wei; Je, Minkyu (2013)
      This paper presents a fully implantable 100-channel neural interface IC for neural activity monitoring. It contains 100-channel analog recording front-ends, 10 multiplexing successive approximation register ADCs, digital ...
    • 100-GHz quasi-yagi antenna in silicon technology 

      Sun, Mei; Zhang, Yue Ping (2007)
      This letter presents a 100-GHz integrated Quasi-Yagi antenna on silicon substrates of low resistivity 10 Omegamiddotcm. The fabrication was realized with the back-end-of-line process. The characterization was conducted on ...
    • 1064 nm acoustic resolution photoacoustic microscopy 

      Periyasamy, Vijitha; Das, Nandan; Sharma, Arunima; Pramanik, Manojit (2019)
      Photoacoustic imaging is a noninvasive imaging technique having the advantages of high-optical contrast and good acoustic resolution at improved imaging depths. Light transport in biological tissues is mainly characterized ...