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| 1 | Circular RNA is enriched and stable in exosomes: a promising biomarker for cancer diagnosis显示文摘 | Yan Li Qiupeng Zheng Chunyang Bao Shuyi Li Weijie Guo Jiang Zhao Di Chen Jianren Gu Xianghuo He Shenglin Huang | 2015 | Cell Research2015,25,8: | 323 |
| 2 | Calculating models of mass action concentrations for NaBr(aq), LiNO_3(aq), HNO_3(aq), and KF(aq) binary solutions显示文摘The calculating models of mass action concentrations for electrolyte aqueous solutions NaBr-H2O, LiNO3-H2O, HNO3-H2O, and KF-H2O have been developed at 298.15 K and their molalities ranging from 0.1 mol/kg to saturation according to the ion and molecule coexistence theory as well as mass action law. The calculated mass action concentration is based on pure species as the standard state and the mole fraction as the concentration unit, and the reported activities are usually based on infinite dilution as the standard state and molality as the concentration unit. Hence, the calculated mass action concentration must be transformed to the same standard state and concentration unit. The transformation coefficients between calculated mass action concentrations and reported ac- tivities of the same component fluctuate in a very narrow range. Thus, the transformed mass action concentrations not only agree well with reported activities, but also strictly obey mass action law. The calculated results show that the new developed models can embody the intrinsic structure of investigated four electrolyte aqueous solutions. The results also indicate that mass action law has its wide- spread applicability to electrolyte binary aqueous solutions. | Hanjie Guo Weijie Zhao Xuemin Yang | 2007 | Journal of University of Science and Technology Beijing2007,14,3: | 8 |
| 3 | Universal thermodynamic model of calculating the mass action concentrations of omponents in a ternary strong electrolyte aqueous solution and its application in the NaCl-KCl-H_2O system显示文摘A universal thermodynamic model of calculating the mass action concentrations of components in a ternary strong elec-trolyte aqueous solution has been developed based on the ion and molecule coexistence theory,and verified in the NaCl-KCl-H2O ternary system at 298.15 K. To compare the difference of the thermodynamic model in binary and ternary strong electrolyte aqueous solutions,the mass action concentrations of components in the NaCl-H2O binary strong electrolyte aqueous solution were also com-puted at 298.15K. A transformation coefficient was required to compare the calculated mass action concentration and reported activ-ity because they were obtained at different standard states and concentration units. The results show that the transformation coeffi-cients between calculated mass action concentrations and reported activities of the same components change in a very narrow range. The calculated mass action concentrations of components in the NaCl-H2O and NaCl-KCl-H2O systems are in good agreement with the reported activities. This indicates that the developed thermodynamic model can reflect the structural characteristics of solutions,and the mass action concentration also strictly follows the mass action law. | Weijie Zhao Hanjie Guo Xuemin Yang Zhigang Dan | 2008 | Journal of University of Science and Technology Beijing2008,15,5: | 5 |
| 4 | A novel selective autophagy receptor,CCDC50,delivers K63 polyubiquitination-activated RIG-I/MDA5 for degradation during viral infection显示文摘Autophagy is a con served process that delivers cytosolic substa nces to the lysosome for degradatio n,but its direct role in the regulation of antiviral inn ate immu nity remains poorly un derstood.Here,through high-throughput screeni ng,we discovered that CCDC50 functions as a previously unknown autophagy receptor that negatively regulates the type I interferon(IFN)signaling pathway initiated by RIG-I-like receptors(RLRs),the sensors for RNA viruses.The expression of CCDC50 is enhanced by viral infection,and CCDC50 specifically recognizes K63-polyubiquitinated RLRs,thus delivering the activated RIG-I/MDA5 for autophagic degradation.The associatio n of CCDC50 with phagophore membrane protei n LC3 is con firmed by crystal structure analysis.In contrast to other known autophagic cargo receptors that associate with either the LIR-docking site(LDS)or the UIMdocking site(UDS)of LC3,CCDC50 can bind to both LDS and UDS,representing a new type of cargo receptor.In mouse models with RNA virus infection,CCDC50 deficiency reduces the autophagic degradation of RIG-I/MDA5 and promotes type I IFN responses,resulting in enhaneed viral resistance and improved survival rates.These results reveal a new link between autophagy and antiviral innate immune resp on ses and provide additional in sights into the regulatory mecha nisms of RLR-mediated antiviral signaling. | Panpan Hou Kongxiang Yang Penghui Jia Lan Liu Yuxin Lin Zibo Li Jun Li Shuliang Chen Shuting Guo Ji'An Pan Junyu Wu Hong Peng Weijie Zeng Chunmei Li Yingfang Liu Deyin Guo | 2021 | Cell Research2021,31,1: | 5 |
| 5 | Effect of B_4C on the Microstructure and Mechanical Properties of As-Cast TiB+TiC/TC4 Composites显示文摘Different additions of B4C were introduced into TC4 to alter the microstructure and mechanical properties.The morphologies of reinforcements are related to the solidification paths.The refinement of lamellar spacing k is based on the precipitation pattern of b-phases.Microhardness,compression elastic modulus(Ec),and elastic modulus of the matrix(Em)appear non-linear relationships with B4C additions.Due to the refinement of lamellar spacing with Hall–Petch-type relationships,and the solution strengthening of C on the a + b matrix,the effect of reinforcements on the mechanical properties will be more efficient when the additions of B4C are no more than 0.19 wt%.When the additions of B4C are more than 0.19 wt%,the efficiency will decrease. | Jiheng Wang Xianglong Guo Lv Xiao Liqiang Wang Weijie Lu Baohui Li Zhongquan Li Di Zhang | 2014 | Acta Metallurgica Sinica(English Letters)2014,27,2: | 4 |
| 6 | Selective synthesis of SnO_2 hollow microspheres and nano-sheets via a hydrothermal route显示文摘We report a mild template-free hydrothermal route for selective synthesis of SnO2 hollow microspheres and nano-sheets using SnCl2 and NaOH as initial materials.By switching the solvent from water to ethanol,the formed SnO2 nanostructures changed from nano-sheets to hollow microspheres.The obtained nano-sheets were single crystalline in structure.On the basis of the characterization of intermediate products,the formation of SnO2 hollow microspheres was ascribed to a crystal growth process,while the formation of SnO2 nano-sheets was ascribed to the oxidation of SnO2 sheets during the hydrothermal process.Further characterization of the SnO2 hollow microspheres and nano-sheets by X-ray photoelectron spectroscopy and UV-Vis absorption spectroscopy reveals different optical absorption properties and valence band electronic structures.In addition,the SnO2 nano-sheets and hollow microspheres exhibit different sensing properties.The present work provides a facile and simple template-free method for the synthesis of nano-structured SnO2. | LI Yue GUO YanQun TAN RuiQin CUI Ping LI Yong SONG WeiJie | 2010 | Chinese Science Bulletin2010,55,7: | 3 |
| 7 | Biomolecular network-based synergistic drug combination discovery:a combination of paeoniflorin and liquiritin alleviates neuropathic pain by inhibiting neuroinflammation via suppressing the chemokine signaling pathway显示文摘Dear Editor,Neuropathic pain(NP)resulting from injuries or diseases affecting the somatosensory nervous system is highly prevalent in various pathological conditions.1 Since NP is debilitating and impacts health and the quality of life,there is an urgent need for effective non-addictive new therapies.Traditional Chinese medicine(TCM)has been increasingly used for its benefits in relieving pain in clinics.Wu-Tou Decoction(WTD),which was first described by the famous TCM classic“Jin Gui Yao Lue”,is one of the most effective TCM herbal prescriptions for pain management.A growing body of clinical evidence shows that WTD markedly alleviates different types of NP,such as trigeminal neuralgia,inflammatory pain,and cancer-induced pain,with a total effectiveness of~80%.2 Our previous data demonstrated the analgesic effects of WTD via suppression of glial cell activation and neuroinflammation and further revealed that WTD attenuated NP partially by inhibiting spinal astrocytic IL-1R1/TRAF6/JNK signaling and regulating the glutamatergic system in CA3 in spinal nerve ligation(SNL)-induced NP in vivo.3,4 However,the bioactive compounds(BACs)of WTD that have an effect on NP and the underlying mechanisms remain unclear. | Qiuyan Guo Weijie Li Chao Wang Xia Mao Xiaoyue Wang Wenjia Chen Haiyu Xu Qian Wang Yanqiong Zhang Na Lin | 2020 | Signal Transduction and Targeted Therapy2020,5,1: | 3 |
| 8 | Porous graphene paper for supercapacitor applications显示文摘Graphene paper shows a great promise for the electrical energy storage. However, the high stability, purity and specific surface area have become stringent requirements for supercapacitor applications. Finding methods to tackle these problems is rather challenging. Here, we develop a facile method to prepare porous graphene papers with a thickness 0.5 mm by a thermal shock to the layer-structure graphene paper self-assembled on Cu foil under nitrogen flowing. The as-prepared porous graphene paper exhibits a large specific capacitance of 100 F g^(-1)at the scan rate of 100 m V s^(-1)with high stability and purity without any residual chemical reagents, showing a promising potential for supercapacitor applications. The high electrochemical properties are mainly attributed to the high-specific area and the improved conductivity of the porous graphene paper performed by the multieffect of reducing, cleaving and expanding to the layer-structure graphene paper by high-energy thermal heating during the thermal shock process. This work paves a pathway to the facile preparation of porous graphene paper for supercapacitor applications. | Qi Li Xinli Guo Yao Zhang Weijie Zhang Chuang Ge Li Zhao Xiaojuan Wang Hongyi Zhang Jian Chen Zengmei Wang Litao Sun | 2017 | Journal of Materials Science & Technology2017,33,8: | 2 |
| 9 | Experimentally testing Bell's theorem based on Hardy's nonlocal ladder proofs显示文摘Bell's theorem argues the existence of quantum nonlocality which goes basically against the hidden variable theory(HVT). Many experiments have been done via testing the violations of Bell's inequalities to statistically verify the Bell's theorem. Alternatively,by testing the Hardy's ladder proofs we experimentally demonstrate the deterministic violation of HVT and thus confirm the quantum nonlocality. Our tests are implemented with non-maximal entangled photon pairs generated by spontaneous parametric down conversions(SPDCs). We show that the degree freedom of photon entanglement could be significantly enhanced by using interference filters. As a consequence, the Hardy's ladder proofs could be tested and Bell's theorem is verified robustly. The probability of violating the locality reach to 41.9%, which is close to the expectably ideal value 46.4% for the photon pairs with degree of entanglement ε = 0.93. The higher violating probability is possible by further optimizing the experimental parameters. | GUO WeiJie FAN DaiHe WEI LianFu | 2015 | Science China(Physics,Mechanics & Astronomy)2015,58,2: | 2 |
| 10 | Enhanced electrical properties in bilayered ferroelectric thin films显示文摘Sr2Bi4Ti5O18(SBTi) single layered and Sr2Bi4Ti5O18 /Pb(Zr0.53Ti0.47)O3(SBTi/PZT) bilayered thin films have been prepared on Pt/TiO2/SiO2/Si substrates by pulsed-laser deposition(PLD).The related structural characterizations and electrical properties have been comparatively investigated.X-ray diffraction reveals that both films have crystallized into perovskite phases and scanning electron microscopy shows the sharp interfaces.Both films show well-saturated ferroelectric hysteresis loops,however,compared with the single layered SBTi films,the SBTi/PZT bilayered films have significantly increased remnant polarization(Pr) and decreased coercive field(Ec),with the applied field of 260 kV/cm.The measured Pr and Ec of SBTi and SBTi/PZT films were 7.9 C/cm 2,88.1 kV/cm and 13.0 C/cm 2,51.2 kV/cm,respectively.In addition,both films showed good fatigue-free characteristics,the switchable polarization decreased by 9% and 11% of the initial values after 2.2 10 9 switching cycles for the SBTi single layered films and the SBTi/PZT bilayered films,respectively.Our results may provide some guidelines for further optimization of multilayered ferroelectric thin films. | ZHANG Hao LONG WeiJie CHEN YaQing GUO DongJie | 2013 | Science China Chemistry2013,56,3: | 2 |
| 11 | Effects of inherent alkali and alkaline earth metals on nitrogen transformation during steam gasification of Shengli lignite显示文摘This work evaluated the effects of inherent alkali and alkaline earth metals on nitrogen transformation during steam gasification of Shengli lignite at the temperature of 873-1173 K in a fluidized-bed/fixed-bed quartz reactor. The results indicated that the alkali metal Na and alkaline earth metals Ca, Mg in coal have different effects on inherent nitrogen transformation to NH3, HCN and char-N during the lignite steam gasification. Specifically during the steam gasification of Shengli lignite, Na and Ca, Mg not only catalyze the inherent nitrogen conversions to NH3, but also promote the secondary reactions of the nascent char-N as well as the generation of NH3 from the generated HCN, meanwhile they also inhibited the inherent nitrogen conversion to HCN and char-N. The presence of Na, Ca and Mg hindered the formation of oxidized nitrogen (N-X) functional groups, but enhanced pyridinic nitrogen (N-6) and quaternary nitrogen's (N-Q) formation in char. | Panpan Zheng Yonggang Wang Chen Liu Weijie Guo Lei Bai Xiao Hu Xiongchao Lin | 2019 | International Journal of Coal Science & Technology2019,6,2: | 2 |
| 12 | Non-Structural Protein 5 of Zika Virus Interacts with p53 in Human Neural Progenitor Cells and Induces p53-Mediated Apoptosis显示文摘Zika virus(ZIKV) infection could disrupt neurogenesis and cause microcephaly in neonates by targeting neural progenitor cells(NPCs). The tumor suppressor p53-mediated cell cycle arrest and apoptotic cell death have been suggested to be activated upon ZIKV infection, yet the detailed mechanism is not well understood. In the present study, we investigated the effects of ZIKV-encoded proteins in the activation of p53 signaling pathway and found that, among the ten viral proteins,the nonstructural protein 5(NS5) of ZIKV most significantly activated the transcription of p53 target genes. Using the immunoprecipitation-coupled mass spectrometry approach, we identified that ZIKV-NS5 interacted with p53 protein. The NS5-p53 interaction was further confirmed by co-immunoprecipitation and GST pull-down assays. In addition, the MTase domain of NS5 and the C-terminal domain of p53 were mapped to be responsible for the interaction between these two proteins. We further showed that ZIKV-NS5 was colocalized with p53 and increased its protein level in the nuclei and able to prolong the half-life of p53. Furthermore, lentivirus-mediated expression of ZIKV-NS5 in hNPCs led to an apparent cell death phenotype. ZIKV-NS5 promoted the cleavage of PARP1 and significantly increased the cell apoptosis of h NPCs.Taken together, these findings revealed that ZIKV-NS5 is a previously undiscovered regulator of p53-mediated apoptosis in hNPCs, which may contribute to the ZIKV-caused abnormal neurodevelopment. | Ping Li Hualian Jiang Hong Peng Weijie Zeng Yongheng Zhong Miao He Luyang Xie Junhai Chen Deyin Guo Junyu Wu Chun-Mei Li | 2021 | Virologica Sinica2021,36,6: | 2 |
| 13 | Direct growth of graphene on vertically standing glass by a metal-free chemical vapor deposition method显示文摘A new method to directly grow graphene on quartz glass substrate by atmospheric-pressure chemical vapor deposition(CVD) without using any catalyst was developed. The prime feature of this method is to build a vertical-glass model in the quartz tube to significantly increase the collision probability of the carbon precursors and reactive fragments between each other with the glass surface. The growth rate of high-quality graphene on glass remarkably increases compared with the conventional gas flow CVD technique. The optical transmittance and sheet resistance of the graphene glass can be readily adjusted by regulating growth time. When growth time is 35 min, the graphene glass presents an intriguing sheet resistance of about 1.48 kΩ sq^(-1) at a transmittance of 93.08% and exhibits an excellent hydrophobic performance. The method is simple and scalable, and might stimulate various potential applications of transparent and conductive graphene glass in practical fields. | Zhongtao Chen Xinli Guo Long Zhu Long Li Yuanyuan Liu Li Zhao Weijie Zhang Jian Chen Yao Zhang Yuhong Zhao | 2018 | Journal of Materials Science & Technology2018,34,10: | 2 |
| 14 | Strong and ductile particulate reinforced ultrafine-grained metallic composites fabricated by flake powder metallurgy显示文摘 | Xizhou Kai Zhiqiang Li Genlian Fan Qiang Guo Zhanqiu Tan Wenlong Zhang Yishi Su Weijie Lu Won-Jin Moon Di Zhang | 2012 | Scripta Materialia2012,,: | 1 |
| 15 | Comparison of delay compensation methods for real-time hybrid simulation using frequency-domain evaluation index显示文摘The delay compensation method plays an essential role in maintaining the stability and achieving accurate real-time hybrid simulation results.The effectiveness of various compensation methods in different test scenarios,however,needs to be quantitatively evaluated.In this study,four compensation methods(i.e.,the polynomial extrapolation,the linear acceleration extrapolation,the inverse compensation and the adaptive inverse compensation)are selected and compared experimentally using a frequency evaluation index(FEI)method.The effectiveness of the FEI method is first verified through comparison with the discrete transfer function approach for compensation methods assuming constant delay.Incomparable advantage is further demonstrated for the FEI method when applied to adaptive compensation methods,where the discrete transfer function approach is difficult to implement.Both numerical simulation and laboratory tests with predefined displacements are conducted using sinusoidal signals and random signals as inputs.Findings from numerical simulation and experimental results demonstrate that the FEI method is an efficient and effective approach to compare the performance of different compensation methods,especially for those requiring adaptation of compensation parameters. | Xu Weijie Guo Tong Chen Cheng | 2016 | Earthquake Engineering and Engineering Vibration2016,15,1: | 1 |
| 16 | Propagation properties of foreshock cavitons: Cluster observations显示文摘Foreshock cavitons are transient phenomena observed in the terrestrial foreshock region.They are characterized by a simultaneous depression of magnetic field magnitude and plasma density,which are bounded with enhancements of these two parameters and surrounded by ultralow frequency(ULF)waves.Previous studies focused on the interplanetary magnetic field(IMF)conditions,solar wind(SW)conditions,and the growth of the foreshock waves related to the generation of foreshock cavitons.Previously,a multipoint spacecraft analysis method using Cluster data was applied to analyze only two foreshock cavitons,and this method did not consider uncertainties.In this study,multipoint spacecraft analysis methods,including the timing method,the minimum directional derivative(MDD)method,and the spatiotemporal difference(STD)method are applied to determine the velocity in both spacecraft and solar wind frames.The propagation properties show good agreement with previous results from simulations and observations that most cavitons move sunward in the solar wind frame,with the velocities larger than the Alfvén speed.The propagation properties of foreshock cavitons support the formation mechanism of cavitons in previous simulations,which suggested that cavitons are formed due to the nonlinear evolution of compressive ULF waves.We find that there is clear decreasing trend between the size of cavitons and their velocity in the solar wind frame.In addition,the timing method considering errors has been applied to study the evolution properties by comparing the velocities with errors of the leading and trailing edges,and we identify three stable cavitons and one contracting caviton,which has not been studied before.Most cavitons should remain stable when they travel toward the Earth’s bow shock.The relationship between the size of foreshock cavitons and their distance from the bow shock is also discussed. | WANG MengMeng YAO ShuTao SHI QuanQi ZHANG Hui TIAN AnMin DEGELING Alexander William ZHANG Shuai GUO RuiLong SUN WeiJie LIU Ji BAI ShiChen SHEN XiaoChen ZHU XiaoQiong FU SuiYan PU ZuYin | 2020 | Science China(Technological Sciences)2020,63,1: | 1 |
| 17 | Template-free preparation of non-metal(B,P,S)doped g-C_(3)N_(4)tubes with enhanced photocatalytic H_(2)O_(2)generation显示文摘Developing environmentally friendly methods to produce hydrogen peroxide(H_(2)O_(2))has received increasing attention.Photocatalysis has been proved to be a sustainable technology for H_(2)O_(2)production.Herein,the novel non-metal elements(B,P,and S)doped g-C_(3)N_(4)tubes(B-CNT,P-CNT,and S-CNT)photocatalysts were obtained via a hydrothermal synthesis followed by thermal polymerization.By adjusting the precursor,the yield of g-C_(3)N_(4)tubes(CNT)materials has been greatly improved.The as-prepared B-CNT,P-CNT,and S-CNT photocatalysts show an enhanced photocatalytic H_(2)O_(2)production with the formation rate constants values of 42.31μM min^(-1),24.95μM min^(-1),and 24.22μM min^(-1),respectively,which is higher than that of bulk CN(16.40μM min^(-1)).The doped B,P,S elements significantly enhanced the photocatalytic activity by adjusting their electronic structures and promoting the separation of electronhole carriers.The results have shown great potential for the practical application of CNT photocatalysts. | Yuanyuan Liu Yanmei Zheng Weijie Zhang Zhengbin Peng Hang Xie Yi Xuan Wang Xinli Guo Ming Zhang Rui Li Ying Huang | 2021 | Journal of Materials Science & Technology2021,,36: | 1 |
| 18 | Enhanced photon communication through Bayesian estimation with an SNSPD array显示文摘Laser communication using photons should consider not only the transmission environment’s effects,but also the performance of the single-photon detector used and the photon number distribution.Photon communication based on the superconducting nanowire single-photon detector(SNSPD)is a new technology that addresses the current sensitivity limitations at the level of single photons in deep space communication.The communication’s bit error rate(BER)is limited by dark noise in the space environment and the photon number distribution with a traditional single-pixel SNSPD,which is unable to resolve the photon number distribution.In this work,an enhanced photon communication method was proposed based on the photon number resolving function of four-pixel array SNSPDs.A simulated picture transmission was carried out,and the error rate in this counting mode can be reduced by 2 orders of magnitude when compared with classical optical communication.However,in the communication mode using photon-enhanced counting,the four-pixel response amplitude for counting was found to restrain the communication rate,and this counting mode is extremely dependent on the incident light intensity through experiments,which limits the sensitivity and speed of the SNSPD array’s performance advantage.Therefore,a BER theoretical calculation model for laser communication was presented using the Bayesian estimation algorithm in order to analyze the selection of counting methods for information acquisition under different light intensities and to make better use of the SNSPD array’s high sensitivity and speed and thus to obtain a lower BER.The counting method and theoretical model proposed in this work refer to array SNSPDs in the deep space field. | XIANG LI JINGROU TAN KAIMIN ZHENG LABAO ZHANG LIJIAN ZHANG WEIJI HE PENGWEI HUANG HAOCHEN LI BIAO ZHANG QI CHEN RUI GE SHUYA GUO TAO HUANG XIAOQING JIA QINGYUAN ZHAO XUECOU TU LIN KANG JIAN CHEN PEIHENG WU | 2020 | Photonics Research2020,8,5: | 1 |
| 19 | Research on the Law of Garlic Price Based on Big Data显示文摘In view of the frequent fluctuation of garlic price under the market economy and the current situation of garlic price,the fluctuation of garlic price in the circulation link of garlic industry chain is analyzed,and the application mode of multidisciplinary in the agricultural industry is discussed.On the basis of the big data platform of garlic industry chain,this paper constructs a Garch model to analyze the fluctuation law of garlic price in the circulation link and provides the garlic industry service from the angle of price fluctuation combined with the economic analysis.The research shows that the average price rate of the price of garlic shows“agglomeration”and cyclical phenomenon,which has the characteristics of fragility,left and a non-normal distribution and the fitting value of the GARCH model is very close to the true value.Finally,it looks into the industrial service form from the perspective of garlic price fluctuation. | Feng Guo Pingzeng Liu Chao Zhang Weijie Chen Wei Han Wanming Ren Yong Zheng Jianrui Ding | 2019 | Computers, Materials & Continua2019,,3: | 1 |
| 20 | Effects of degree of deformation on the microstructure, mechanical properties and texture of hybrid-reinforced titanium matrix composites显示文摘 | Xianglong Guo Liqiang Wang Minmin Wang Jining Qin Di Zhang Weijie Lu | 2012 | Acta Materialia . 2012 (6-7)2012,,6: | 1 |