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Now showing items 49 - 64 of 1306

  • Familial IBGC caused by SLC20A2 mutation presenting as paroxysmal kinesigenic dyskinesia

    Zhu, Min   Zhu, Xuan   Wan, Hui   Hong, Daojun  

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  • Comparison of Three Different Fat Graft Preparation Methods

    Zhu, Min   Cohen, Steven R.   Hicok, Kevin C.   Shanahan, Rob K.   Strem, Brian M.   Yu, Johnson C.   Arm, Douglas M.   Fraser, John K.  

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  • Sturge-Weber syndrome coexisting with episodes of rhabdomyolysis

    Zhu, Min   Li, Xiaobin   Zhou, Meihong   Wan, Hui   Wu, Yuchen   Hong, Daojun  

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  • Highly transparent and colour-tunable composite films with increased quantum dot loading

    Zhu, Min   Peng, Xiaoqing   Wang, Ziwei   Bai, Zelong   Chen, Bingkun   Wang, Yongtian   Hao, Hongying   Shao, Ziqiang   Zhong, Haizheng  

    Transparent films incorporated with quantum dots are promising light conversion materials for many cutting-edge technologies including light-emitting diodes and luminescent solar concentrators. In this work, we demonstrated that a combination of water soluble quantum dots and ultrathin cellulose nanofibers is an advantageous strategy to fabricate highly emissive thin films of tens of micrometers. By varying the composition of quantum dots, these thin films exhibit tunable photoluminescence emissions, ranging from blue to red as well as white light. Because of the inherent nanoscale phase separation of cellulose nanofibers, the loading content of quantum dots can be increased up to 50 wt%, which results in a significant increase of the refractive index. The combination of high refractive index (similar to 1.56), colour-tunable emissions (450-650 nm) and high transparency (similar to 80%, at a wavelength longer than the absorption band of quantum dots) makes them promising candidates for photonic and optoelectronic devices.
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  • The effect of titanium doping on the structure and phase change characteristics of Sb4Te

    Zhu, Min   Wu, Liangcai   Rao, Feng   Song, Zhitang   Ji, Xinglong   Yao, Dongning   Cheng, Yan   Lv, Shilong   Song, Sannian   Liu, Bo   Xu, Ling  

    As a growth-dominated phase change material, Sb4Te (ST) has fast crystallization speed while thermal stability is very poor, which makes it unsuitable for application in phase change random access memory (PCRAM). After doping Ti, the crystallization temperature is greatly improved to 210.33 degrees C, which is much higher than that of conventional Ge2Sb2Te5 (similar to 150 degrees C), and the melting point is reduced to 540.27 degrees C. In addition, grain size of crystalline Ti-doped Sb4Te (TST) film is significantly decreased to nanoscale. Ti atom is believed to occupy the lattice site of Sb atom in TST. With good thermal stability, TST-based PCRAM cell also has fast crystallization rate of 6 ns. Furthermore, the energy consumption is also lower than that of Ge2Sb2Te5-based one. Endurance of exceeding 2E5 cycles is obtained with a resistance ratio of one order of magnitude. Therefore, Ti doping seems to be a good way to solve the contradiction between thermal stability and fast crystallization speed of Sb-Te alloys. (C) 2013 AIP Publishing LLC.
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    In one embodiment, the methods and apparatuses include requesting an expert during a collaboration session; determining a subject matter of the collaboration session; detecting a potential participant to serve as the expert; and inviting the potential participant to join the collaboration session.
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  • Design of Battlefield Weather Environment Automatic Collection and Processing System

    Zhu, Min   Li, Hai Yan  

    Battlefield weather environment can't be collected automatically in the existing artillery command automation system, and the response speed of this system is affected seriously. So, firstly, the new-style wind speed, wind direction, temperature and humidity sensor are used to convert these weather parameters into frequency, gray code, voltage. Then the PIC16C73 chip is adopted to translate the output such as frequency and voltage into binary code which is identified easily by computer. The gray code is input into computer directly, and be translated into azimuth by programming. Finally, GAL20V8 and tri-state buffer 74HC573 are used to connect the four kind weather parameters with computer respectively through different port. The automatic collection and processing of battlefield weather environment is realized, and real time and accurate information source for command automation is provided.
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  • Application of Fuzzy Neural Network in Relay Protection

    Zhu, Min   Liu, Wei Dong   Hu, Wen Song  

    This paper present a relay protection algorithm based on fuzzy neural network theory. FZZ makes full use of the strong structural knowledge express ability of fuzzy logic as well as self-learning and direct quantitative data processing ability of neural network. Hence the robustness and self-learning of FZZ are improved. At the end of this paper, we use a relay protection working case to certify the application.
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  • A primitive fish provides key characters bearing on deep osteichthyan phylogeny

    Zhu, Min   Yu, Xiaobo   Wang, Wei   Zhao, Wenjin   Jia, Liantao  

    Osteichthyans, or bony vertebrates, include actinopterygians (teleosts and their relatives) and sarcopterygians (coelacanths, lungfishes and tetrapods). Despite features found in basal actinopterygians (for example, Dialipina and Ligulalepis)(1-3) and basal sarcopterygians (for example, Psarolepis and Achoania)(4,5), the morphological gap between the two lineages remains wide and how sarcopterygians developed a dermal surface covering known as cosmine (composed of a pore-canal network and a single layer of odontodes and enamel) is still poorly known(6-10). Here we describe a primitive fossil fish, Meemannia eos gen. et sp. nov., that possesses an actinopterygian-like skull roof and a cosmine-like dermal surface combining a pore-canal network (found in various fossil sarcopterygians) with superimposed layers of odontodes and enamel (previously known in actinopterygians and some acanthodians(11-13)). This 405-million-year-old fish from the Lower Devonian of Yunnan (China) demonstrates that cosmine in many fossil sarcopterygians arose step by step through the acquisition of a pore-canal network followed by the subsequently developed ability to resorb previous generations of odontodes and enamel. Meemannia provides key characters for studying deep osteichthyan phylogeny and indicates a possible morphotype for the common ancestor of actinopterygians and sarcopterygians.
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  • Finite Element Analysis and Optimization of ZF2800/6/24 Type Hydraulic Support\"s Canopy

    Zhu, Min   Chen, Chang Hua   Wang, Gang  

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  • Reconstructing spatially extended brain sources via enforcing multiple transform sparseness

    Zhu, Min   Zhang, Wenbo   Dickens, Deanna L.   Ding, Lei  

    Accurate estimation of location and extent of neuronal sources from EEG/MEG remain challenging. In the present study, a new source imaging method, i.e. variation and wavelet based sparse source imaging (VW-SSI), is proposed to better estimate cortical source locations and extents. VW-SSI utilizes the Ll-norm regularization method with the enforcement of transform sparseness in both variation and wavelet domains. The performance of the proposed method is assessed by both simulated and experimental MEG data, obtained from a language task and a motor task. Compared to L2-norm regularizations, VW-SSI demonstrates significantly improved capability in reconstructing multiple extended cortical sources with less spatial blurredness and less localization error. With the use of transform sparseness, VW-SSI overcomes the over-focused problem in classic SSI methods. With the use of two transformations, VW-SSI further indicates significantly better performance in estimating MEG source locations and extents than other SSI methods with single transformations. The present experimental results indicate that VW-SSI can successfully estimate neural sources (and their spatial coverage) located in close areas while responsible for different functions, i.e. temporal cortical sources for auditory and language processing, and sources on the pre-bank and post-bank of the central sulcus. Meantime, all other methods investigated in the present study fail to recover these phenomena. Precise estimation of cortical source locations and extents from EEG/MEG is of significance for applications in neuroscience and neurology. (C) 2013 Elsevier Inc. All rights reserved.
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  • Th1/Th2/Th17 cells imbalance in patients with asthma with and without psychological symptoms

    Zhu, Min   Liang, Zongan   Wang, Ting   Chen, Renzhi   Wang, Gang   Ji, Yulin  

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  • Inhibition of Xenogeneic Response in Porcine Endothelium Using RNA Interference

    Zhu, Min   Wang, Shu-Sen   Xia, Zhen-Xiong   Cao, Rong-Hua   Chen, Dong   Huang, Ya-Bing   Liu, Bin   Chen, Zhonghua-Klaus   Chen, Shi  

    Background. Rejection mediated by antibody recognition of the alpha-Gal epitope (Galalpha1-3Galbeta1-4GlcNAc-R) is a major barrier in porcine-to-human xenotransplantation. Because the synthesis of alpha-Gal is dependent on alpha1,3 galactosyltransferase (alpha1,3GT), methods of blocking this enzyme are needed. RNA interference induced by small interfering RNA (siRNA) is a powerful technique for allowing the silencing of mammalian genes with great specificity and potency. In this study, we use siRNA for silencing of alpha1,3GT with the purpose of reducing expression of the alpha-Gal epitope and subsequently decreasing immunogenicity of porcine endothelial cells. Methods. alpha1,3GT-specific and control siRNAs were transfected into the porcine aortic endothelial cell line, PED. alpha-Gal expression was assessed by Western blotting, flow cytometry, and immunofluorescence. Protection from human-complement and natural killer (NK)-cell-mediated cytotoxicity was evaluated by Cr-51-release assays after incubation of PED with normal human serum (NHS) and NK92 cell, respectively. Results. RNA interference was successfully achieved in PED as witnessed by the specific knock-down of alpha1,3GT mRNA levels. Flow cytometric analysis using the Griffonia simplicifolia isolectin B4 lectin confirmed the suppression of alpha1,3GT activity as evidenced by decreased alpha-Gal. Functional relevance of the knock-down phenotype was illustrated by the finding that silenced PED were protected from cytotoxicity of NHS. Protection from NK-mediated cytotoxicity was not observed. Conclusions. Our data are the first to demonstrate that RNA interference is a potent tool to down modulate alpha-Gal expression and to protect endothelial cells from complement-mediated cytotoxicity. Gene silencing by siRNA may represent a new approach for overcoming hyperacute and acute vascular rejection.
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  • The oldest articulated osteichthyan reveals mosaic gnathostome characters

    Zhu, Min   Zhao, Wenjin   Jia, Liantao   Lu, Jing   Qiao, Tuo   Qu, Qingming  

    The evolutionary history of osteichthyans (bony fishes plus tetrapods) extends back to the Ludlow epoch of the Silurian period. However, these Silurian forms have been documented exclusively by fragmentary fossils. Here we report the discovery of an exceptionally preserved primitive fish from the Ludlow of Yunnan, China, that represents the oldest near-complete gnathostome (jawed vertebrate). The postcranial skeleton of this fish includes a primitive pectoral girdle and median fin spine as in non-osteichthyan gnathostomes, but a derived macromeric squamation as in crown osteichthyans, and substantiates the unexpected mix of postcranial features in basal sarcopterygians, previously restored from the disarticulated remains of Psarolepis. As the oldest articulated sarcopterygian, the new taxon offers insights into the origin and early divergence of osteichthyans, and indicates that the minimum date for the actinopterygian-sarcopterygian split was no later than 419 million years ago.
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  • Bisphenol F disrupts thyroid hormone signaling and postembryonic development in Xenopus laevis

    Zhu, Min   Chen, Xiaoying   Li, Yuanyuan   Yin, Nuoya   Faiola, Francesco   Qin, Zhanfen   Wei, Wuji  

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    In one embodiment, the methods and apparatuses detect a query; detect a plurality of available participants; search a plurality of electronic mail messages associated with the plurality of available participants based on the query; and identify a qualified participant from the plurality of available participants based on searching the plurality of electronic mail messages.
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