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Li A.,Peiking University
Proceedings of the 30th Pacific Asia Conference on Language, Information and Computation, PACLIC 2016 | Year: 2016

Verb resultative complement (VC) is a common structure of Chinese language with abundant forms of collocation. It makes much sense for VC research to analyze the general rules of argument integration in light of diversities of predicate & complement and the complexity of argument integration in the forming of VC with predicate & complement. This article has analyzed and summarized the existing research outcome of VC, and then gives further analyses thereby on argument integration process and multi-valence phenomena.


Bo Z.,Peiking University | Xiaofang C.,CAS Institute of Genetics and Developmental Biology | Xun H.,CAS Institute of Genetics and Developmental Biology | Xiao Y.,Beijing Institute of Biotechnology
Yi chuan = Hereditas | Year: 2016

Chinese scientists have made significant achievements in the field of animal genetics in 2015. Incomplete statistics show that among all the publications of 2015 involving nematode (Caenorhabditis elegans), fly (Drosophila melanogaster), zebrafish (Danio rerio), African clawed frog (Xenopus) or mice (Mus musculus), about 1/5 publications are from China. Many innovative studies were published in high-impact international academic journals by Chinese scientists, including the identification of a putative magnetic receptor MagR, the genetic basis for the regulation of wing polyphenism in the insect brown planthopper (Nilaparvata lugens), DNA N6-methyladenine (6mA) modification in the Drosophila genome, a novel molecular mechanism regarding the dendritic spine pruning and maturation in the mammals, the mechanism for the CREB coactivator CRTC2 in the regulation of hepatic lipid metabolism, the control of systemic inflammation by neurotransmitter dopamine, the role of Gasdermin protein family in triggering pyroptosis, a parvalbumin-positive excitatory visual pathway to trigger fear responses in mice, etc. Chinese scientists have also made important contributions in genome editing via TALEN or CRISPR/Cas system. According to incomplete statistics, more than 1/5 of the publications related to genome editing in 2015 are from China, where a variety of animals with different approaches were targeted, ranging from the worm to primates. Particularly, CRISPR/Cas9-mediated gene editing in human tripronuclear zygotes was successfully achieved for the first time. China has been one of the leading countries in genome sequencing in recent years, and Chinese scientists reported the sequence and annotation of the genomes of several important animal species in 2015, including goose (Anser cygnoides), Schlegel's Japanese Gecko (Gekko japonicus), grass carp (Ctenopharyngodon idellus), large yellow croaker (Larimichthys crocea) and pig (Sus scrofa). They further analyzed the genome-wide genetic basis of the species-specific physiological and pathological characteristics as well as their adaptation to environmental conditions. In this review, we make a first attempt to summarize the research advances on animal genetics in China in 2015, with an emphasis on the achievements led by Chinese scientists and carried out in Chinese institutions. We will briefly discuss the significance of their research and contributions of Chinese scientists in animal genetics.


Hayes W.I.,University of Ulster | Lubarsky G.,University of Ulster | Li M.,Peiking University | Papakonstantinou P.,University of Ulster
Journal of Power Sources | Year: 2014

A novel production method for graphene nanoplatelets (GPs) with enhanced electrocatalytic behaviour is presented. GPs show improvement in their oxygen reduction reaction (ORR) catalysis after prolonging the grinding of graphite in 1-butyl-3-methylimidazolium hexafluorophosphate (BMIM-PF6). Nitrogen doping of the GPs has inferred a further increase in ORR. The ORR onset potential, cathodic current magnitude and electron transfer efficiency have all improved as a direct consequence of increasing the graphite grinding duration from 30 min to 4 h. Atomic force microscopy has confirmed a decrease in the GP diameter and height as the grinding increases. Raman spectroscopy indicates a higher level of defects present after prolonging the graphite grinding in BMIM-PF6, most likely a result of the increased edge plane exposure. This increased edge plane appears to promote a higher level of nitrogen incorporation as the graphite grinding duration increases, as confirmed by X-ray photoelectron spectroscopy analysis. The stability of the cathodic current assessed by chronoamperometry analysis is higher for the GP and nitrogen doped graphene nanoplatelet (N-GP) samples than the platinum on carbon black (Pt/C). This study presents a novel process for the production of nitrogen doped graphene nanoplatelets, constituting a strategy for the up-scaled production of electrocatalysts. © 2014 Elsevier B.V. All rights reserved.


Zhu Z.,Tsinghua University | Zhang Y.,Tsinghua University | Shao H.,Peiking University | Ding H.,Tsinghua University | Wang G.,Tsinghua University
IFMBE Proceedings | Year: 2013

The quadriceps (Q) angle between the rectus femoris and the patella tendon, measured in laying or standing, is an important reference to value a healthy or abnormal knee joint. The purpose of the present study was to measure a dynamic Q angle, which was defined as the Q angles during the flexion of the knee joint. Skin maker-based motion tracking technique was applied. The dynamic Q angle was calculated based on the cluster of markers attached to the skin. 30 normal subjects (15 male, 15 female) participated in the test. The results indicated that the Q angle was similar between the male and female during the knee flexion from 0° to 100°, but significant difference was observed from 105° to 120°. We observed this new phenomenon and reported the data in order to help understand the knee joint mechanism and the function of the patella. As a reference, our results proved more information for the diagnosis of an abnormal knee joint. © 2013 Springer-Verlag.


Zhu Z.,Tsinghua University | Ji S.,Peiking University | Yang M.,Tsinghua University | Ding H.,Tsinghua University | Wang G.,Tsinghua University
IFMBE Proceedings | Year: 2013

There is an increasing need of the accurate comparison of the in-vivo joint kinematics before and after the knee replacement, which is still a challenging issue in technique. In this paper, we applied an automatic 2D-3D image matching technique to study the knee joint of a Chinese patient before and after a traditional posterior-stabilized TKA. An imaging system of Shimadzu's fluoroscopy was used to acquire the 2D images, which were recorded in sagittal view during a dynamic activity of knee flexion. The algorithm of automatic procedure was tested 20 times for a single pose to examine the repeatability. The result shew that the in-plane repeatability was within 0.5 mm and 1.5°, and the out-of-plane repeatability was within 5.4 mm and 1.7°. The dynamic kinematics was calculated based on the series of reproduced spatial positions of the knee joint. The result of the pre and postoperative patellar flexion in patellofemoral joint was similar. In sagittal view, less sinking of the patella and variation of the angle of patellar tendon were observed in TKA knee after 30° of knee flexion. This technique will be applied to study more knees of the healthy, abnormal and TKA patients in China. © 2013 Springer-Verlag.


Fu X.,General Research Institute for Nonferrous Metals, China | Ma T.,General Research Institute for Nonferrous Metals, China | Zhang C.,CAS Lanzhou Institute of Modern Physics | Zhang L.,CAS Lanzhou Institute of Modern Physics | And 4 more authors.
Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms | Year: 2012

The unintentionally doped epitaxial GaN was grown on (0 0 0 1) sapphire by metal organic chemical vapor deposition (MOCVD). The effects of 2 MeV electron irradiation with the doses of 1 × 10 15/cm 2 and 5 × 10 15/cm 2 on the GaN epilayers were investigated by photoluminescence (PL) and Rutherford backscattering spectroscopy (RBS). The blue luminescence (BL) from the GaN epitlayers decreases significantly after the dose of 1 × 10 15/cm 2 electron irradiation. This is attributed to complex formation of BL-related defects with other point defects. On the contrary, the BL intensity from the GaN epilayers subjected to electron irradiation with the dose of 5 × 10 15/cm 2 increases beyond the BL intensity from the low-dose irradiated one. It is deduced that the surplus gallium vacancies in 1- charge state (VGa1-) could lead to the BL intensity rebounding as electron irradiation damage accumulated. © 2011 Elsevier B.V. All rights reserved.


Liu W.,Tsinghua University | Ding H.,Tsinghua University | Zhu Z.,Tsinghua University | Wang G.,Tsinghua University | Zhou Y.,Peiking University
Proceedings - 2011 4th International Conference on Biomedical Engineering and Informatics, BMEI 2011 | Year: 2011

Surgical navigation system has been widely used by surgeons to improve alignment accuracy during Total Knee Arthroplasty (TKA). In this article, we present an image-free surgical navigation system for TKA with a more interactive and robust in-house developed Graphical User Interface (GUI). The navigation system has a more intuitive view and can trace surgical steps easily by saving surgery information data. System steps, feature of the interactive GUI, coordinate definition and osteotomy value/angle calculation method have been introduced. The stability and accuracy test are performed. © 2011 IEEE.


Liu D.,Harbin Institute of Technology | Zhao D.,Harbin Institute of Technology | Ma S.,Peiking University | Gao W.,Peiking University
PV 2010 - 2010 18th International Packet Video Workshop | Year: 2010

Rate control plays an important role in video coding. When jump update dual frame motion compensation (JU-DFMC) is utilized in video coding, two kinds of frames are existed according to bit allocation, one is low quality frame (LQF), the other is high quality frame (HQF). For each current frame (LQF or HQF), one short term reference frame (STR) and one long term reference frame (LTR) are utilized for motion compensation. Owning to this kind of coding structure, rate control for JU-DFMC is different from traditional methods. In this paper, a rate control scheme for JU-DFMC is proposed. Firstly, a linear bit allocation method is proposed for LOFs to obtain smooth quality. Secondly, different source rate and quantization stepsize (Qstep) models are proposed to different frames (LQFs or HQFs). Thirdly, overhead prediction and MAD prediction are presented. Experimental results show that the proposed method can bring accurate rate control for JU-DFMC, at the same time the PSNR is better than the other methods. ©2010 IEEE.


Liu N.,Peiking University | Wu J.,Peiking University | Li W.,Sino Nitride Semiconductor Ltd. | Luo R.,Peiking University | And 5 more authors.
Journal of Crystal Growth | Year: 2014

A new nozzle structure was developed in an improved multi-wafer hybrid vapor phase epitaxy (IHVPE) system by adding an inner dilution gas (ID) pipe between V and III groups gas channels. Experimental results showed that the thickness distribution of 2-inch GaN layer depended strongly on the flow rate of ID gas. The uniformity of film can arrive at ±3-4% by optimizing ID gas, which was better than that of ±30% grown in the old conventional multi-wafer hybrid vapor phase epitaxy (CHVPE) system. Meanwhile, the crystal quality and surface morphology were also greatly improved for GaN film by using the new reactor structure. The FWHM values of (002) and (102) were reduced from 342″ and 806″ to 207″ and 254″, respectively. AFM result of surface roughness (RMS, 10 μm×10 μm) of GaN layer was also lowered from 1.226 nm to 0.798 nm. It was partly because of the suppression of parasitic polycrystalline deposition due to the ID gas. This simple and economic method could provide an effective solution to simultaneously fabricate multiple GaN wafer with good thickness uniformity, high crystal quality and low cost. © 2013 The Authors.


PubMed | CAS Institute of Genetics and Developmental Biology, Peiking University and Beijing Institute of Biotechnology
Type: Journal Article | Journal: Yi chuan = Hereditas | Year: 2016

Chinese scientists have made significant achievements in the field of animal genetics in 2015. Incomplete statistics show that among all the publications of 2015 involving nematode (Caenorhabditis elegans), fly (Drosophila melanogaster), zebrafish (Danio rerio), African clawed frog (Xenopus) or mice (Mus musculus), about 1/5 publications are from China. Many innovative studies were published in high-impact international academic journals by Chinese scientists, including the identification of a putative magnetic receptor MagR, the genetic basis for the regulation of wing polyphenism in the insect brown planthopper (Nilaparvata lugens), DNA N

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