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Now showing items 1 - 16 of 753

  • Proletarian Power: Shanghai in the Cultural Revolutionby Elizabeth J. Perry; Li Xun

    Review by: Andrew G. Walder  

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  • Proletarian Power: Shanghai in the Cultural Revolutionby Elizabeth J. Perry; Li Xun

    Review by: Marc Blecher  

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  • REMOTE RADIO UNIT POWER AMPLIFIER CONTROL METHOD AND DEVICE

    Provided is a power amplifier control method and a device for a remote radio unit. The method comprises: the remote radio unit detects time domain data which come from a baseband processing unit and determines whether there is user data in the time domain data; and the remote radio unit controls a power amplifier of the remote radio unit to turn on or off according to the determination result of whether there is user data in the time domain data.
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  • Linkage-FFD algorithm for dental crown and abutment shape design

    Li, Xun   Chen, Ming  

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  • RNA-Seq Analyses of the Role of miR-21 in Acute Pancreatitis

    Li, Xun   Lin, Zhanwen   Wang, Lei   Liu, Qin   Cao, Zhi   Huang, Zhujuan   Zhong, Mingtian   Peng, Shuxian   Zhang, Yingheng   Li, Yong   Ma, Xiaodong   

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  • Role of hydrodynamic viscosity on phonon transport in suspended graphene

    Li, Xun   Lee, Sangyeop  

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  • CODEBOOK, AND METHOD AND DEVICE FOR GENERATING PRECODER BASED ON SAME

    Provided are a method and device for generating a codebook for wireless communications; also provided are a method and device for generating a precoder for a 3D channel by using the codebook in a base station in wireless communications; and further provided are a method and device for aiding in generating a precoder by using the codebook in a user equipment in wireless communications. Compared with the prior art, the codebook provided in the present invention can not only be used in horizontal beam shaping but can also be used in vertical beam shaping; and with respect to a traditional precoder, the precoder provided in the present invention can not only control an azimuth angle of a beam but can also control a downtilt angle of a beam. Compared with the prior art, the present invention uses a vertical space gain of a 3D channel, thereby improving the system performance.
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  • A Simple and Automatic Method for Locating Surgical Guide Hole

    Li, Xun   Chen, Ming   Tang, Kai  

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  • Continuous-time Markowitz’s model with constraints on wealth and portfolio

    Li, Xun   Xu, Zuo Quan  

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  • Precursors for carbon doping of GaN in chemical vapor deposition

    Li, Xun   Danielsson, ?rjan   Pedersen, Henrik   Janzén, Erik   Forsberg, Urban  

    Methane (CH4), ethylene (C2H4), acetylene (C2H2), propane (C3H8), iso-butane (i-C4H10), and trimethylamine [N(CH3)(3)] have been investigated as precursors for intentional carbon doping of (0001) GaN in chemical vapor deposition. The carbon precursors were studied by comparing the efficiency of carbon incorporation in GaN together with their influence on morphology and structural quality of carbon doped GaN. The unsaturated hydrocarbons C2H4 and C2H2 were found to be more suitable for carbon doping than the saturated ones, with higher carbon incorporation efficiency and a reduced effect on the quality of the GaN epitaxial layers. The results indicate that the C2H2 molecule as a direct precursor, or formed by the gas phase chemistry, is a key species for carbon doping without degrading the GaN quality; however, the CH3 species should be avoided in the carbon doping chemistry. (C) 2015 American Vacuum Society.
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  • Single-mode Fabry-Perot laser with deeply etched slanted double trenches

    Li, Xun   Zhu, Zhongshu   Xi, Yanping   Han, Lin   Ke, Cheng   Pan, Yue   Huang, Weiping  

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  • PROCESS FOR THE PREPARATION OF COMPOUNDS USEFUL AS INHIBITORS OF SGLT-2

    The present invention is directed to a novel process for the preparation of compounds having inhibitory activity against sodium-dependent glucose transporter (SGLT) being present in the intestine or kidney.
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  • Energy-milk price transmission at the product brand level

    Li, Xun   Lopez, Rigoberto   Yang, Shuai  

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  • Food environment and weight outcomes: a stochastic frontier approach

    Li, Xun   Lopez, Rigoberto A.  

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  • METHOD TO COUNTER SIDE CHANNEL ATTACK ON SENSITIVE DATA

    The invention relates to a method to manage physical volatile memory storing sensitive data relative to a cryptography algorithm process, said method comprising an initial step (EO) of defining a plurality of logical sub- buffers (Bi) ordered in a logical layout (LLyt) intended to include in physical volatile memory sensitive data relative to the cryptography algorithm process, and said method comprising, before each run of the cryptography algorithm process, the following steps: constructing (E1) a random permutation table (PT(Bi)) for the sub-buffers (Bi), - recording (E3), in an address table (AT(Bi)), the physical address of each sub-buffer (Bi) obtained after permutation, said method then implying the running of the sensitive process by accessing the sub-buffers' contents as ordered in a logical layout (LLyt) using the address table (AT(Bi)) to call the corresponding physical addresses, then each time of run the algorithm will access different sub-buffers' physical addresses.
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  • DUAL-POWER DEVICE WITH TRANSFER CASE OF CONTAINER LIFT PLATFORM TRUCK

    A dual-power device with a transfer case (2) of a container lift platform truck comprises an engine (1), a hydraulic pump (3) and a hydraulic transmission device (4) driven by the hydraulic pump (3). The dual-power device is provided with the transfer case (2) and an electric motor (5), wherein the power input end of the transfer case (2) is connected to the engine (1) and the electric motor (5) respectively through clutches, and the output end is connected to the hydraulic pump (3). The electric motor (5) is connected to the mains supply through a cable. The power device is a selectable dual-power device, and meets the requirements on less emission and lower noise of the container lift platform truck during operation on a parking apron.
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