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Browsing MIT Open Access Articles by Title

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  • A 0.077 to 0.168 nJ/bit/iteration Scalable 3GPP LTE Turbo Decoder with an Adaptive Sub-Block Parallel Scheme and an Embedded DVFS Engine 
    Cheng, Chih-Chi; Tsai, Yi-Min; Chen, Liang-Gee; Chandrakasan, Anantha P. (Institute of Electrical and Electronics Engineers (IEEE), 2010-09)
    3GPP LTE requires a 100 Mbps of peak bandwidth, and the instantaneous throughput demand changes with different applications. Fixed sub-block parallel turbo decoding scheme introduces bit-error rate (BER) performance drop ...
  • A 0.13[mu]m CMOS 78dB SNDR 87mW 20MHz BW CT [Delta Sigma] ADC with VCO-based integrator and quantizer 
    Park, Matthew (Institute of Electrical and Electronics Engineers, 2009-05)
    In this paper we demonstrate a new technique that eliminates the impact of K[subscript v] nonlinearity by preserving the integral relationship of the VCO output phase to the input signal. Leveraging the VCO output phase ...
  • A 0.16mm2 completely on-chip switched-capacitor DC-DC converter using digital capacitance modulation for LDO replacement in 45nm CMOS 
    Ramadass, Yogesh Kumar; Fayed, Ayman; Haroun, Baher; Chandrakasan, Anantha P. (Institute of Electrical and Electronic Engineers, 2010-02)
    A completely on-chip switched-capacitor DC-DC converter that occupies 0.16 mm2 [mm superscript 2] is implemented in a 45 nm CMOS process. The converter delivers 8 mA output current while maintaining load voltages from 0.8 ...
  • A 0.7-V 1.8-mW H.264/AVC 720p Video Decoder 
    Finchelstein, Daniel F.; Sze, Vivienne; Sinangil, Mahmut Ersin; Chandrakasan, Anantha P. (Institute of Electrical and Electronics Engineers, 2009-10)
    The H.264/AVC video coding standard can deliver high compression efficiency at a cost of increased complexity and power. The increasing popularity of video capture and playback on portable devices requires that the power ...
  • 100-W Q-switched Cryogenically Cooled Yb:YAG Laser 
    Hybl, John D.; Fan, Tso Yee; Ochoa, Juan R.; Ripin, Daniel J.; Rand, Darren A.; Manni, Jeffrey G. (Institute of Electrical and Electronics Engineers, 2009-12)
    This work describes a cryogenic, electro-optically Q-switched Yb:YAG laser that generates 114-W average TEM[subscript 00] power with 47% optical-to-optical efficiency. Pulse repetition frequency is 5 kHz, pulse duration ...
  • A 10-Gb/s Compact Low-Power Serial I/O With DFE-IIR Equalization in 65-nm CMOS 
    Kim, Byeong-Su; Liu, Yong; Dickson, Timothy O.; Bulzacchelli, John F.; Friedman, Daniel J. (Institute of Electrical and Electronics Engineers, 2009-12)
    A compact and power-efficient serial I/O targeting dense silicon carrier interconnects is reported. Based on expected channel characteristics, the proposed I/O features low-impedance transmitter termination, high-impedance ...
  • A 10Gb/s compact low-power serial I/O with DFE-IIR equalization in 65nm CMOS 
    Kim, Byungsub; Dickson, Timothy O.; Liu, Yong; Bulzacchelli, John F.; Friedman, Daniel J. (Institute of Electrical and Electronics Engineers, 2009-05)
    The design of compact low-power I/O transceivers continues to be a challenge for both chip-to-chip and backplane applications. The introduction of dense fine-pitch silicon packaging technologies, that in principle are ...
  • A 110μW 10Mb/s eTextiles Transceiver for Body Area Networks with Remote Batter Power 
    Mercier, Patrick Philip; Chandrakasan, Anantha P. (Institute of Electrical and Electronics Engineers (IEEE), 2010-02)
    A transceiver for communicating over an electronic textiles medium is implemented for body area networks. A supply-rail-coupled differential signaling scheme permits time-sharing of the eTextiles medium between communication ...
  • A 110μW 10Mb/s eTextiles transceiver for body area networks with remote battery power 
    Mercier, Patrick Philip; Chandrakasan, Anantha P. (Institute of Electrical and Electronics Engineers, 2010-02)
    A transceiver for communicating over an electronic textiles medium is implemented for body area networks. A supply-rail-coupled differential signaling scheme permits time-sharing of the eTextiles medium between communication ...
  • A 12b 50MS/s fully differential zero-crossing-based ADC without CMFB 
    Lee, Hae-Seung; Brooks, Lane (Institute of Electrical and Electronics Engineers, 2009-05)
    As intrinsic device gain and power supply voltages decrease with CMOS technology scaling, it is becoming increasingly challenging for designers of conventional opamp-based switched-capacitor circuits to meet gain and output ...
  • A 12b, 50 MS/s, Fully Differential Zero-Crossing Based Pipelined ADC 
    Brooks, Lane; Lee, Hae-Seung (Institute of Electrical and Electronics Engineers, 2009-12)
    Zero-crossing based switch capacitor circuits have been introduced as alternatives to op-amp based circuits for eased design considerations and improved power efficiency. This work further improves the resolution, power ...
  • 130-W picosecond green laser based on a frequency-doubled hybrid cryogenic Yb:YAG amplifier 
    Hong, Kyung-Han; Lai, Chien-Jen; Siddiqui, Aleem M.; Kartner, Franz X. (Optical Society of America, 2009-09)
    130-W average-power picosecond green laser pulses at 514.5 nm are generated from a frequency-doubled hybrid cryogenic Yb:YAG laser. A second-harmonic conversion efficiency of 54% is achieved with a 15-mm-long noncritically ...
  • 137 and 165 GHZ radiometer measurements of hot electrons in LDX 
    Woskov, Paul P.; Kesner, Jay; Garnier, D. T.; Mauel, M. E. (Institute of Electrical and Electronics Engineers (IEEE), 2009-08)
    Summary form only given. The levitated dipole experiment (LDX) is investigating a levitated dipole magnetic configuration as an alterative confinement concept for fusion plasmas. A 1.1 MA, 68 cm mean diameter, 560 kg ...
  • 14-3-3 fusion oncogenes in high-grade endometrial stromal sarcoma 
    Lee, Cheng-Han; Ou, Wen-Bin; Mariño-Enriquez, Adrian; Zhu, Meijun; Mayeda, Mark; Wang, Yuexiang; Guo, Xiangqian; Brunner, Alayne L.; Amant, Frédéric; French, Christopher A.; West, Robert B.; McAlpine, Jessica N.; Gilks, C. Blake; Yaffe, Michael B.; Prentice, Leah M.; McPherson, Andrew; Jones, Steven J. M.; Marra, Marco A.; Shah, Sohrab P.; Rijn, Matt van de; Huntsman, David G.; Cin, Paola Dal; Debiec-Rychter, Maria; Nucci, Marisa R.; Fletcher, Jonathan A. (National Academy of Sciences, 2012-01)
    14-3-3 proteins are ubiquitously expressed regulators of various cellular functions, including proliferation, metabolism, and differentiation, and altered 14-3-3 expression is associated with development and progression ...
  • 14-3-3 Proteins, FHA Domains and BRCT Domains in the DNA Damage Response 
    Mohammad, Duaa H.; Yaffe, Michael B. (Elsevier, 2009-05)
    The DNA damage response depends on the concerted activity of protein serine/threonine kinases and modular phosphoserine/threonine-binding domains to relay the damage signal and recruit repair proteins. The PIKK family of ...
  • 17(lowercase beta)-estradiol and Tamoxifen prevent gastric cancer by modulating leukocyte recruitment and oncogenic pathways in Helicobacter pylori-infected INS-GAS male mice 
    Sheh, Alexander; Ge, Zhongming; Parry, Nicola Maria Anne; Muthupalani, Sureshkumar; Rager, Julia E.; Raczynski, Arkadiusz R.; Mobley, Melissa W.; McCabe, Amanda F.; Fry, Rebecca C.; Wang, Timothy C.; Fox, James G. (American Association for Cancer Research, 2011-06)
    Helicobacter pylori infection promotes male predominant gastric adenocarcinoma in humans. Estrogens reduce gastric cancer risk and previous studies showed that prophylactic 17β-estradiol (E2) in INS-GAS mice decreases H. ...
  • 1D-to-3D transition of phonon heat conduction in polyethylene using molecular dynamics simulations 
    Henry, Asegun; Chen, Gang; Plimpton, Steven J.; Thompson, Aidan (American Physical Society, 2010-10)
    The thermal conductivity of nanostructures generally decreases with decreasing size because of classical size effects. The axial thermal conductivity of polymer chain lattices, however, can exhibit the opposite trend, ...
  • 1-D Transforms for the Motion Compensation Residual 
    Kamisli, Fatih; Lim, Jae S. (Institute of Electrical and Electronics Engineers (IEEE), 2011-03)
    Transforms used in image coding are also commonly used to compress prediction residuals in video coding. Prediction residuals have different spatial characteristics from images, and it is useful to develop transforms that ...
  • 1EV GaN[subscript x]As[subscript 1-x-y]Sb[subscript y] material for lattice-matched III-V solar cell implementation on GaAs and Ge 
    Yoon, Soon Fatt; Chen, Kah Pin; Ng, Tien Khee; Tan, Kian Hua; Loke, Wan Khai; Wicaksono, Satrio; Lew, Kim Luong; Pitera, Arthur J.; Fitzgerald, Eugene A.; Ringel, Steve A.; Carlin, Andrew M.; Gonzalez, Maria (Institute of Electrical and Electronics Engineers, 2010-02)
    The effect of different arsenic species (As[subscript 2] or As[subscript 4]) on the quality of molecular beam epitaxy (MBE) grown GaNAsSb materials (samples A and B) and GaAs/ GaNAsSb/GaAs p+n-n+ devices (samples C and D) ...
  • 1 ghz femtosecond erbium-doped fiber lasers 
    Sander, Michelle Yen-Ling; Chang, Guoqing; Byun, Hyunil; Morse, Jonathan Lee; Chao, David; Shen, Hanfei M.; Motamedi, Ali R.; Petrich, Gale S.; Kolodziejski, Leslie A.; Ippen, Erich P.; Kaertner, Franz X. (Optical Society of America, 2010-05)
    Saturable Bragg reflector (SBR) mode-locked Er-doped fiber lasers around 1550nm with a repetition rate of 1GHz are demonstrated. Key steps to obtain stable, femtosecond pulses by avoiding thermal damage of the SBR are ...
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