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| 1 | Experiment on Leader Propagation Characteristics of Air Gaps in UHVDC Transmission Towers Under Positive Switching Impulse Voltages显示文摘Rapid developments in EHV/UHV transmission systems require a deeper understanding of the mechanism of long air gap discharge.Leader propagation is one of the main processes in long gap breakdown.In this paper,the leader propagation characteristics of real size±800 kV UHVDC transmission tower gaps under positive switching impulse voltages(185/2290μs)are investigated.An integrated observation platform consisting of an impulse voltage divider,a coaxial shunt,a high-speed video camera,and a set of integrated optical electric field sensors(IOES),is established.The waveforms of impulse voltage,discharge current,electric field variation at specific positions,and time-resolved photographs of discharge morphology are recorded.Axial leader velocity and the relationship between leader advancements and injected charge are obtained.The typical value of leader stable propagation velocity is 1.7–2.2 cm/μs,which varies slightly with the gap length and applied voltage amplitude.The leader velocity in the re-illumination process is much higher,and is seen as varying from 5 cm/μs to 30 cm/μs,with an average value around 10 cm/μs.The charge in leader channel per unit length is 20–40μC/m,which illustrates a near-direct proportion relationship between discharge current and leader velocity.The observed parameters are important for further simulation of the tower gap breakdown processes. | Xuan Zhou She Chen Hai Wang Rong Zeng Chijie Zhuang Junjie Yu Yujian Ding | 2015 | CSEE Journal of Power and Energy Systems2015，1，3： | 12 |
| 2 | Replacement of Dietary Fish Oil with Vegetable Oils Improves the Growth and Flesh Quality of Large Yellow Croaker(Larmichthys crocea)显示文摘We investigated the effect of the replacement of dietary fish oil with vegetable oils on the growth and flesh quality of large yellow croaker(Larmichthys crocea). The basal diet(FO) was formulated to contain 66.5% fish meal and 6.4% menhaden fish oil; whereas the other 3 experimental diets were formulated by replacing the fish oil with 50% soybean oil(SO50), 100% soybean oil(SO100) and 100% palm oil(PO100), respectively. The 4 diets were randomly assigned to 4 floating sea cages(3.0 m × 3.0 m × 3.0 m), and each was stocked with 250 fish individuals with an initial average weight of 245.29 g ± 7.45 g. The fish were fed to apparent satiation twice a day at 5:00 and 17:00, respectively, for 12 weeks. Experimental analysis showed that the specific growth rate of fish fed SO50 or PO100 were significantly higher than that of fish fed FO or SO100(P<0.05), and crude lipid contents of ventral muscle and viscera were significantly lower in fish fed FO than in those fed the other 3 diets(P<0.05). No significant differences in condition factor, viscerosomatic index, hepatosomatic index, gutted yield and colorimetric values of fish among the dietary treatments were observed(P>0.05). Compared to FO diet, SO50, SO100 and PO100 diets led to substantial decreases in the liquid loss and water loss from fresh fillets(1 d, 4℃)(P<0.05). Similarly, thiobarbituric acid reactive substance(TBARS) values of fillets under different storage conditions(1 d, 4℃; 7 d, 4℃; 4 weeks,-20℃; 8 weeks,-20℃) decreased significantly after partial or complete replacement of fish oil with vegetable oils. These findings indicated that the growth performance and selected flesh quality properties(liquid holding capacity and TBARS value) of large yellow croaker were substantially improved by replacing dietary fish oil with vegetable oils. | DUAN Qingyuan MAI Kangsen SHENTU Jikang AI Qinghui ZHONG Huiying JIANG Yujian ZHANG Lu ZHANG Chunxiao GUO Sitong | 2014 | Journal of Ocean University of China2014，13，3： | 11 |
| 3 | Endogenously produced FGF2 is essential for the survival and proliferation of cultured mouse spermatogonial stem cells显示文摘 | Yan Zhang Si Wang Xiuxia Wang Shangying Liao Yujian Wu Chunsheng Han | 2012 | Cell Research2012，22，4： | 10 |
| 4 | Diclofop-methyl affects microbial rhizosphere community and induces systemic acquired resistance in rice显示文摘Diclofop-methyl(DM),a widely used herbicide in food crops,may partly contaminate the soil surface of natural ecosystems in agricultural area and exert toxic effects at low dose to nontarget plants.Even though rhizosphere microorganisms strongly interact with root cells,little is known regarding their potential modulating effect on herbicide toxicity in plants.Here we exposed rice seedlings(Xiushui 63) to 100 μg/L DM for 2 to 8 days and studied the effects of DM on rice rhizosphere microorganisms,rice systemic acquired resistance(SAR) and rice-microorganisms interactions.The results of metagenomic 16 S rDNA Illumina tags show that DM increases bacterial biomass and affects their community structure in the rice rhizosphere.After DM treatment,the relative abundance of the bacterium genera Massilia and Anderseniella increased the most relative to the control.In parallel,malate and oxalate exudation by rice roots increased,potentially acting as a carbon source for several rhizosphere bacteria.Transcriptomic analyses suggest that DM induced SAR in rice seedlings through the salicylic acid(but not the jasmonic acid) signal pathway.This response to DM stress conferred resistance to infection by a pathogenic bacterium,but was not influenced by the presence of bacteria in the rhizosphere since SAR transcripts did not change significantly in xenic and axenic plant roots exposed to DM.The present study provides new insights on the response of rice and its associated microorganisms to DM stress. | Si Chen Xingxing Li Michel Lavoie Yujian Jin Jiahui Xu Zhengwei Fu Haifeng Qian | 2017 | Journal of Environmental Sciences2017，29，1： | 8 |
| 5 | Advanced Ni-Nx-C single-site catalysts for CO2 electroreduction to CO based on hierarchical carbon nanocages and S-doping显示文摘Metal-nitrogen-carbon materials are promising catalysts for CO2 electroreduction to CO. Herein, by taking the unique hierarchical carbon nanocages as the support, an advanced nickel-nitrogen-carbon single-site catalyst is conveniently prepared by pyrolyzing the mixture of NiCl2 and phenanthroline, which exhibits a Faradaic efficiency plateau of > 87% in a wide potential window of −0.6 – −1.0 V. Further S-doping by adding KSCN into the precursor much enhances the CO specific current density by 68%, up to 37.5 A·g−1 at −0.8 V, along with an improved CO Faradaic efficiency plateau of > 90%. Such an enhancement can be ascribed to the facilitated CO pathway and suppressed hydrogen evolution from thermodynamic viewpoint as well as the increased electroactive surface area and improved charge transfer fromkinetic viewpoint due to the S-doping. This study demonstrates a simple and effective approach to advanced electrocatalysts by synergetic modification of the porous carbon-based support and electronic structure of the active sites. | Yiqun Chen Yuejian Yao Yujian Xia Kun Mao Gongao Tang Qiang Wu Lijun Yang Xizhang Wang Xuhui Sun Zheng Hu | 2020 | Nano Research2020，13，10： | 8 |
| 6 | Effects of Shuanghuanglian oral liquids on patients with COVID-19:a randomized,open-label,parallel-controlled,multicenter clinical trial显示文摘We conducted a randomized,open-label,parallel-controlled,multicenter trial on the use of Shuanghuanglian(SHL),a traditional Chinese patent medicine,in treating cases of COVID-19.A total of 176 patients received SHL by three doses(56 in low dose,61 in middle dose,and 59 in high dose)in addition to standard care.The control group was composed of 59 patients who received standard therapy alone.Treatment with SHL was not associated with a difference from standard care in the time to disease recovery.Patients with 14-day SHL treatment had significantly higher rate in negative conversion of SARS-CoV-2 in nucleic acid swab tests than the patients from the control group(93.4%vs.73.9%,P=0.006).Analysis of chest computed tomography images showed that treatment with high-dose SHL significantly promoted absorption of inflammatory focus of pneumonia,which was evaluated by density reduction of inflammatory focus from baseline,at day 7(mean difference(95%CI),−46.39(−86.83 to−5.94)HU;P=0.025)and day 14(mean difference(95%CI),−74.21(−133.35 to−15.08)HU;P=0.014).No serious adverse events occurred in the SHL groups.This study illustrated that SHL in combination with standard care was safe and partially effective for the treatment of COVID-19. | Li Ni Zheng Wen Xiaowen Hu Wei Tang Haisheng Wang Ling Zhou Lujin Wu Hong Wang Chang Xu Xizhen Xu Zhichao Xiao Zongzhe Li Chene Li Yujian Liu Jialin Duan Chen Chen Dan Li Runhua Zhang Jinliang Li Yongxiang Yi Wei Huang Yanyan Chen Jianping Zhao Jianping Zuo Jianping Weng Hualiang Jiang Dao Wen Wang | 2021 | Frontiers of Medicine2021，15，5： | 7 |
| 7 | 市区软土地层地下工程施工新技术显示文摘为了使现代城市更有效率,具有更多功能,全球各大城市愈发关注地下空间的利用问题。然而,由于在大城市很多地下建筑物(如重要市政管线)已经开发,要开发新的地下空间,就要求更好更有效地利用浅层和深层的地下空间。因此,在尽量不影响地下水自然环境及邻近的地下或地上建筑物的前提下,开发适用于深埋和/或大断面建筑物的施工技术显得尤为重要。此外,由于多数亚洲国家大城市的地层由软弱沉积物构成,如黏土、淤泥、砂、砾石层等,且地下水位高;所以,有关现场勘察、设计、安全管理和环境保护监控、地下水处理、土体改良等的新技术都是必需的。根据这些需求,总结了在日本开发的新技术,包括现场勘察与监控技术、隧道及地下工程施工技术、土体改良技术、地下水处理技术与地下径流保持技术等。希望这些技术能够满足各大城市经济高效、环保地开发地下空间的需求。这些新技术不仅对发达国家大城市的地下空开发有用,而且对发展中城市的地下空间开发同样有用。 | Tadashi Hashimoto Yujian LIU | 2012 | 隧道建设2012，32，3： | 6 |
| 8 | Prokaryotic expression, purification, and polyclonal antibody production of a hydrophobin from Grifolafrondosa显示文摘Hydrophobins 是小真菌的蛋白质自我装配自发地在 hydrophilichydrophobic 接口和变化他们属于的表面的极的性质。新 hydrophobin 基因 hgfI 最近从可食的蘑菇 Grifola frondosa 被识别。在这份报纸,克隆,表示,纯化,和 HGFI 的 polyclonal 抗体准备被描述。hgfI 基因在 EcoRI 和 NdeI 限制地点被克隆进 pET-28a 表示 plasmid 然后转变了成 Escherichia coli BL21 紧张。SDS 页分析证明那 recombinant HGFI 蛋白质被优化集中和 IPTG 的正式就职时间令人满意地表示。因为它的包括身体在传统的处理方法是不可溶解的,表示 recombinant HGFI 蛋白质被 electroelution 净化。在有 Sephadex G-25 的一个脱盐的过程以后, recombinant HGFI 蛋白质被用来使跟随标准协议的成年兔子免疫。ELISA 和西方的污点分析显示生产抗血清能检测表示在的两 HGFI 蛋白质原核生物(E。coli ) 并且在真核细胞的房间(G。frondosa ) 。而且,抗血清被用来在 G 决定 HGFI 蛋白质的本地化。用一种 immunofluorescence 技术的 frondosa 房间。结果证明那 HGFI 蛋白质在房间墙中是局部性的,特别在 hypha 的开始发育的位置。对 HGFI 的 polyclonal 抗体将便于进一步的生产和 HGFI 蛋白质的功能的学习。 | Zefang Wang Shuren Feng Yujian Huang Mingqiang Qiao Baohua Zhang Haijin Xu | 2010 | Acta Biochimica et Biophysica Sinica2010，42，6： | 5 |
| 9 | Advances in DCC Process and Catalyst for Propylene Production from Heavy Oils显示文摘In the past several decades,SINOPEC has devoted continuously great efforts to the development of DCC technology,the only commercial process using heavy feeds aiming at propylene production.Recently,a series of research breakthroughs have been achieved in molecular refining.Based on the detailed analysis on the complex DCC reaction network,an innovative catalyst technology has been developed to Optimize Catalysis Kinetics (OCK in brief).The deep-cracking process can be improved with optimizing the availability of the active sites.The updated MFI and beta zeolites are used to boost the propylene selectivity.The latest generation catalyst DMMC-1 has been applied commercially.Compared with the best historical records in the past,the propylene yield upon application of the catalyst DMMC-1 increases by 2.4 m% coupled with an improved distribution of products.The DCC technology continues to assume a leading position for manufacturing propylene from heavy feedstocks. | Liu Yujian Long Jun Tian Huiping Xu Yun Zhao Liuzhou (Research Institute of Petroleum Processing,SINOPEC,Beijing 100083) | 2011 | China Petroleum Processing & Petrochemical Technology2011，13，1： | 5 |
| 10 | Oil/Gas Accumulation Characteristics and Exploration Methods of the Deltaic Lithologic Reservoirs in Northern Shaanxi Area显示文摘There are large deltaic systems in the Triassic Yanchang Formation in the northern Shaanxi area of the Ordos Basin, and developed two sets of good source-reservoir-caprock assemblages and many sets of oil-beating beds. Exploration experience demonstrates that the formation and distribution of the reservoir were controlled by the generative depression of the Yanchang Formation, and deltaic reservoir sand body is the material basis for large-scale oilfields. In addition, secondary laumontite in a low permeable area was dissolved and then a high permeable area was formed. The updip lithologic variety of reservoir sand bodies is favorable to the formation of subtle lithologic traps, and the deltaic reservoirs are characterized by large multi-beds of oil-generation and abundant hydrocarbon resources. In this paper, the petroleum geologic settings of the studied area are analyzed, and the accumulation characteristics and exploration methods of lithologic reservoirs are summarized. It is of theoretical significance for the study of the exploration theories of lithologic reservoirs, and also expedites the exploration steps of deltaic reservoirs in the northern Shaanxi area. | YangHua FuJinhua YuJian DuJinliang MuJingkui | 2004 | Petroleum Science2004，1，2： | 4 |
| 11 | A fluorescent Eu(Ⅲ) MOF for highly selective and sensitive sensing of picric acid显示文摘A metal-organic framework [Eu_3L_3(CH_3COO)_2(H_2O)_2(μ_3-OH)]·3 DMF,(EuL, H_2L=9H-carbazole-2,7-dicarboxylic acid,DMF=N,N-dimethylformamide) has been synthesized under solvothermal conditions and structurally characterized. In EuL,Eu_6O_8 clusters are four-bridged by carboxylates to form parallel-aligned Eu–O–C chains, which are further linked by the carbazole moieties of L^(2-) ligands to form the three-dimensional framework with rhombic channels. The EuL material with characteristic emission of Eu^(3+) ion exhibits significant luminescence quenching response for picric acid(PA) and the linear Stern-Volmer plot was observed in the concentration range of 0.05–0.15 mM with K_(sv) of 98074 M^(-1). As far as we know, this Ksv is among the highest values for COFs and MOFs in detection of PA. The excellent anti-interference ability and repeatability were also verified by experiments. Lastly, we investigated the luminescence quenching mechanism in the EuL sensing system. | Qianqian Chen Jiahui Cheng Jin Wang Liang Li Zhipeng Liu Xinhui Zhou Yujian You Wei Huang | 2019 | Science China Chemistry2019，62，2： | 3 |
| 12 | Study on Diffusion of Hydrocarbons in FAU and MFI Zeolites by Molecular Simulation and Related Experiments显示文摘The diffusion of C4—C24 alkanes, aromatics and cycloalkanes in FAU and MFI zeolites were studied systematically by molecular simulation. The basic data on diffusion energy barriers and the diffusion characteristics of alkanes, cycloalkanes and aromatics in FAU and MFI zeolites were obtained. It was found out that the 12-member-ring openings between the two adjacent super cages limited the diffusion of hydrocarbons in FAU zeolites, and the hydrocarbon molecules diffused more easily in the intersections of MFI zeolite channels than in the straight channels between the intersections. It was more difficult for the molecules to diffuse in the sinusoidal channel of the MFI zeolite than in the straight channel because of the atoms at the corner of sinusoidal channel. The diffusion of three kinds of C6 alkanes was studied by gravity sorption method. The simulation results were well consistent with the experimental results, indicating that the simulation results were convincing. | Yuan Shuai Liu Yujian Tian Huiping Dai Zhenyu Zhao Yi Zhou Han Long Jun | 2012 | China Petroleum Processing & Petrochemical Technology2012，14，4： | 3 |
| 13 | A core-shell structured COYID-19 mRNA vaccine with favorable biodistribution pattern and promising immunity显示文摘Although inoculation of COVID-19 vaccines has rolled out globally,there is still a critical need for safe and effective vaccines to ensure fair and equitable supply for all countries.Here,we report on the development of a highly efficacious mRNA vaccine,SW0123 that is composed of sequence-modified mRNA encoding the full-length SARS-CoV-2 Spike protein packaged in core-shell structured lipopolyplex(LPP)nanoparticles.SWOT 23 is easy to produce using a large-scale microfluidics-based apparatus.The unique core-shell structured nanoparticle facilitates vaccine uptake and demonstrates a high colloidal stability,and a desirable biodistribution pattern with low liver targeting effect upon intramuscular administration.Extensive evaluations in mice and nonhuman primates revealed strong immunogenicity of SW0123,represented by induction of Th1-polarized T cell responses and high levels of antibodies that were capable of neutralizing not only the wild-type SARS-CoV-2,but also a panel of variants including D614G and N501Y variants.In addition,SW0123 conferred effective protection in both mice and non-human primates upon SARS-CoV-2 challenge.Taken together,SW0123 is a promising vaccine candidate that holds prospects for further evaluation in humans. | Ren Yang Yao Deng Baoying Huang Lei Huang Ang Lin Yuhua Li Wenling Wang Jingjing Liu Shuaiyao Lu Zhenzhen Zhan Yufei Wang Ruhan A Wen Wang Peihua Niu Li Zhao Shiqiang Li Xiaopin Ma Luyao Zhang Yujian Zhang Weiguo Yao Xingjie Liang Jincun Zhao Zhongmin Liu Xiaozhong Peng Hangwen Li Wenjie Tan | 2021 | Signal Transduction and Targeted Therapy2021，6，6： | 3 |
| 14 | Design of an Optimal Preview Controller for Dual-Rate Linear Discrete-Time Systems显示文摘A dual-rate preview control strategy for a type of discrete-time system is proposed based on the theory of multirate control. First, by using the discrete lifting technique, the general dual-rate discrete-time system is converted into a single-rate augmented system. On this basis, the augmented error system is constructed by introducing a first-order difference operator and the previewable reference signal. Then the tracking problem is transformed into a regulator problem of the augmented error system. The optimal preview control law of the augmented error system is obtained by using standard linear quadratic optimal preview control theory, and then the optimal preview controller of the original system is derived. In addition, the necessary and sufficient conditions for the controller are given.Finally, simulation results show the effectiveness of the proposed method. | Yujian GUO Fucheng LIAO | 2018 | Journal of Systems Science and Information2018，9，2： | 2 |
| 15 | W-Band High-Efficiency Waveguide Slot Array Antenna with Low Sidelobe Levels Based on Silicon Micromachining Technology显示文摘A high-efficiency waveguide slot array antenna with low sidelobe level(SLL)is investigated for W-band applications.The silicon micromachining technology is utilized to realize multilayer antenna architecture by three key steps of selective etching,gold plating and Au-Au bonding.The radiating slot based on this technique becomes thick with a minimum thickness of 0.2 mm and accompanies with the decrease of slot’s radiation ability.To overcome this weakness,a stepped radiation cavity is loaded on the slot.The characteristic of cavityloaded slot is investigated to synthesize the low-SLL array antenna.The unequal hybrid corporate feeding network is constructed to achieve sidelobe suppression in the E-plane.A pair of 16×8 low-SLL and high-effciency slot arrays is fashioned and confirmed experimentally.The bandwidth with the radiation effciency higher than 80%is 92.3–96.3 GHz.The SLLs in both E-and H-planes are below−19 dB. | YAO Shisen CHENG Yujian BAI Hang FAN Yong | 2022 | Chinese Journal of Electronics2022，31，4： | 2 |
| 16 | Effects of Vanadium Oxidation Number on Light Olefins Selectivity of FCC Catalyst显示文摘Effects of vanadium on light olefins selectivity of FCC catalysts were investigated with vanadium having different oxidation numbers(hereinafter abbreviated as Oxnum).Molecular modeling studies showed that vanadium with low Oxnum could affect the chemical conversion of large-size hydrocarbon molecules.However,the vanadium deposited on equilibrium catalyst had high Oxnum because of the oxidation reaction taking place in the regenerator,so an activation method to reduce vanadium Oxnum named 'selective activation' was introduced.It was proved by means of Electron Paramagnetic Resonance(EPR) and Temperature-Programmed Reduction(TPR) methods that the vanadium Oxnum was decreased,when the catalyst was activated.The molecular modeling studies are consistent well with the lab evaluation results.The light olefins selectivity of activated equilibrium catalysts was better than that achieved by the inactivated catalysts.Similar results were observed with the lab vanadium-contaminated catalyst.The light olefins selectivity of the catalyst was optimized when the vanadium Oxnum was close to 2(VO). | Liu Yujian Long Jun Tian Huiping Zhou Han(Research Institute of Petroleum Processing,SINOPEC,Beijing 100083) | 2011 | China Petroleum Processing & Petrochemical Technology2011，13，2： | 2 |
| 17 | The six elements to block-building approaches for the single container loading problem显示文摘 | Wenbin Zhu Wee-Chong Oon Andrew Lim Yujian Weng | 2012 | Applied Intelligence2012，，3： | 2 |
| 18 | Study on the Performance and Commercial Application of New Generation DMMC-1 Type Catalyst for Deep Catalytic Cracking显示文摘在过去的十年, SINOPEC 不间断地一直在从事发展并且深催化的裂开升级(两重棉包线) 为从重油生产丙烯的技术。最近,在在在分子的水平精制的油的区域取得了很多进步以后的 SINOPEC 开发了为 DCC 过程设计的新一代 DMMC-1 类型催化剂。实验室评估测试与展示最好的全面表演的存在 MMC-2 类型催化剂相比显示出那, DMMC-1 类型催化剂增加了丙烯收益 2.2% ,丙烯选择增加了 10% 。说的催化剂为重油在汽油与石蜡内容的减小一起裂开和焦炭选择完成更好的产品分布并且改进产品质量改进了它的能力。在在西诺佩克·安金·布朗奇同伴的一个 650-kt/a 广告两重棉包线单位的说的催化剂的申请的结果表明了 DMMC-1 催化剂为重油裂开表明了一个提高的能力并且能从 83.92 m%增加全部的液体收益到 84.56 m%, LPG 收益到从 34.60 m %,到从到从 44.91 m%的 45.91 m%的 15.37 m%和丙烯集中的 17.80 m%的丙烯收益,和还原剂的 38.90 m %从 7.61 m%的焦炭收益到在到 37.5 v%的从 42.3 v%的汽油的 7.05 m%和石蜡内容,导致一年等于5219万 RMB 的增长利润。这种技术进一步升级了并且发展在工业同伴之中一直在命令一个领先的位置的 DCC 技术。 | Long Jun Tian Huiping Liu Yujian Xie Chaogang Li Jibing | 2007 | China Petroleum Processing & Petrochemical Technology2007，9，4： | 2 |
| 19 | High glucose stimulates proliferation and inhibits apoptosis of non-small-cell lung cancer cells by JNK-mediated downregulation of p53 pathway显示文摘 | Lumei Wang Nanzhe Zhong Shujuan Liu Xiaoyan Zhu Yujian Liu | 2017 | Acta Biochimica et Biophysica Sinica2017，49，3： | 2 |
| 20 | Chiral assembly of achiral pseudoisocyanine with D-and L-phenylalanine显示文摘Supramolecular chirality and molecular self-assembly are important and interesting phenomena in living and non-living systems.In this work,supramolecular chirality of achiral pseudoisocyanine(PIC) J-aggregates was successfully induced by D-,L-phenylalanine(Phe) and other amino acids in NaCl solution.The chiral J-aggregates showed a characteristic,induced circular dichroism(ICD) in the visible region of J-band chromophore which depends on the absolute configuration,concentration and side groups of α-amino acids,as well as temperature.The atomic force microscopy images indicated that the J-aggregates exist in large bundles of entangled nanofibers,and the observed ICD might result from the macroscopic helical arrangement of the assemblies. | ZENG LiXi HE YuJian DAI ZhiFeng WANG Jian WANG CaiQi YANG YongGang | 2009 | Science China Chemistry2009，52，8： | 2 |
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