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| 1 | Mercury oxidation and adsorption characteristics of potassium permanganate modified lignite semi-coke显示文摘The adsorption characteristics of virgin and potassium permanganate modified lignite semi-coke(SC)for gaseous Hg0 were investigated in an attempt to produce more effective and lower price adsorbents for the control of elemental mercury emission.Brunauer-EmmettTeller(BET)measurements,X-ray powder diffraction(XRD)and X-ray photoelectron spectroscopy(XPS)were used to analyze the surface physical and chemical properties of SC,Mn-SC and Mn-H-SC before and after mercury adsorption.The results indicated that potassium permanganate modification had significant influence on the properties of semi-coke,such as the specific surface area,pore structure and surface chemical functional groups.The mercury adsorption efficiency of modified semi-coke was lower than that of SC at low temperature,but much higher at high temperature.Amorphous Mn7+,Mn6+ and Mn 4+ on the surface of Mn-SC and Mn-H-SC were the active sites for oxidation and adsorption of gaseous Hg0,which oxidized the elemental mercury into Hg2+ and captured it.Thermal treatment reduced the average oxidation degree of Mnx+ on the surface of Mn-SC from 3.80 to 3.46.However,due to the formation of amorphous MnOx,the surface oxidation active sites for gaseous Hg0 increased,which gave Mn-H-SC higher mercury adsorption efficiency than that of Mn-SC at high temperature. | Huawei Zhang Jitao Chen Peng Liang Li Wang | 2012 | Journal of Environmental Sciences2012,24,12: | 12 |
| 2 | Robust reliable guaranteed cost control for uncertain singular systems with time-delay显示文摘The robust reliable guaranteed cost control for uncertain singular delay systems with actuator failures and a given quadratic cost function is studied. The system under consideration involves constant time-delay and norm-bounded parameter uncertainties. The purpose is to design state feedback controllers which can tolerate actuator failure, such that the closed-loop system is stable, and the specified cost function has an upper bound for all admissible uncertainties. The sufficient conditions for the solvability of this problem are obtained by a linear matrix inequality (LMI) method. Furthermore, a numerical example is given to demonstrate the applicability of the proposed approach. | Qixun Lan Yuxiao Liu Huawei Niu Jiarong Liang | 2010 | Journal of Systems Engineering and Electronics2010,21,1: | 4 |
| 3 | Simultaneous gene editing of three homoeoalleles in self-incompatible allohexaploid grasses显示文摘Clustered regularly interspaced palindromic repeats(CRISPR)/CRISPR-associated protein 9(Cas9)system has been widely used for precise gene editing in plants.However,simultaneous gene editing of multiple homoeoalleles remains challenging,especially in self-incompatible polyploid plants.Here,we simultaneously introduced targeted mutations in all three homoeoalleles of two genes in the self-incompatible allohexaploid tall fescue,using both CRISPR/Cas9 and LbCas12a(LbCpf1)systems.Loss-of-function mutants of FaPDS exhibited albino leaves,while knockout of FaHSP17.9 resulted in impaired heat resistance in T0 generation of tall fescue.Moreover,these mutations were inheritable.Our findings demonstrate the feasibility of generating loss-of-function mutants in T0 generation polyploid perennial grasses using CRISPR/Cas systems. | Liang Zhang Tao Wang Guangyang Wang Aoyue Bi Misganaw Wassie Yan Xie Liwen Cao Huawei Xu Jinmin Fu Liang Chen Yang Zhao Tao Hu | 2021 | Journal of Integrative Plant Biology2021,63,8: | 3 |
| 4 | Research progress of rare earth composite shielding materials显示文摘With the rapid development of nuclear technology,nuclear protection has received extensive attention.As an important strategic resource,rare earth plays an important role in the field of nuclear shielding materials.In this review,the shielding principles of rare earth materials are first introduced.According to the type of matrix,the characteristics and current research status of metal-based,inorganic nonmetallic-based and polymer-based rare earth shielding materials are reviewed.Meanwhile,the future development trend of rare earth shielding materials is discussed. | Hui Jing Laiyao Geng Shaoyu Qiu Huawei Zou Mei Liang Dan Deng | 2023 | Journal of Rare Earths2023,41,1: | 3 |
| 5 | Protective effects and potential underlying mechanisms of sodium copper chlorophyllin against ethanol-induced gastric ulcer in mice显示文摘In study,we aimed to determine the mechanisms underlying the gastroprotective effects of sodium copper chlorophyllin(SCC)against ethanol-induced gastric ulcer injury in mice.First,the gastroprotective effects of SCC against gastric ulcer induced by ethanol were assessed.Then,biochemical,histopathological,immunohistochemistry assays,and western blot analysis were conducted to determine the possible mechanisms of action underlying the effects of SCC.Compared to the effects of omeprazole(OME)in a confirmed mouse model of ethanol-induced gastric ulcer injury,treatment with various doses of SCC resulted in up-regulation of Bcl-2 and down-regulation of the pro-apoptotic protein Bax.Significant decreases in the levels of the malondialdehyde(MDA),myeloperoxidase(MPO),and NO in the gastric tissues were observed.Furthermore,inflammatory cytokine analysis revealed that SCC treatment inhibited the expressions of TNF-αand IL-6,greatly reduced the phosphorylation level of IκB,and repressed the nuclear translocation of NF-κB p65,which demonstrated that SCC inhibited the activation of the NF-κB pathway.The present findings suggest that the protective effects of SCC may be beneficial as a potential preventive and therapeutic agent for gastric ulcer through the NF-κB pathway.Taken together,SCC administration significantly decreased the levels of MPO,NO,and MDA in gastric tissue and exerted a powerful anti-inflammatory activity as demonstrated by reduction in the secretions of proinflammatory mediators such as IL-6 and TNF-α in the serum of mice exposed to ethanol. | Huawei Lv Yan Lin Peigang Liu Weiqing Liang Kemin Wei Jinbao Pu Hongjian Zhang | 2019 | Acta Biochimica et Biophysica Sinica2019,51,9: | 2 |
| 6 | Fibroblast Growth Factor 23 is a Predictor of Aortic Artery Calcification in Maintenance Hemodialysis Patients显示文摘 | Zijin Chen Xiaonong Chen Jingyuan Xie Xiaobo Ma Fang Zhong Liang Hou Huawei Ling Xiao Li Hong Ren Nan Chen | 2013 | Renal Failure2013,,5: | 2 |
| 7 | Thermally conductive composites obtained by flake graphite filling immiscible Polyamide 6/Polycarbonate blends显示文摘 | Shengtai Zhou Yang Chen Huawei Zou Mei Liang | 2013 | Thermochimica Acta2013,,: | 1 |
| 8 | A Bionic Camera-Based Polarization Navigation Sensor 显示文摘 | WANG Daobin LIANG Huawei ZHU Hui | 2014 | Sensors(S1424-8220)2014,14,13: | 1 |
| 9 | The preparation and properties study of methoxy functionalized silicone‐modified epoxy resins显示文摘 | Qinyu Ren Huawei Zou Mei Liang | 2014 | J. Appl. Polym. Sci2014,,9: | 1 |
| 10 | Reconfigurable,graphene-coated,chalcogenide nanowires with a sub-10-nm enantioselective sorting capability显示文摘Chiral surface plasmon polaritons(SPPs)produced by plasmonic nanowires can be used to enhance molecular spectroscopy for biosensing applications.Nevertheless,the switchable stereoselectivity and detection of various analytes are limited by a lack of switchable,chiral SPPs.Using both finite-element method simulations and analytic calculations,we present a graphene-coated chalcogenide(GCC)nanowire that produces mid-infrared,chiral SPPs.The chiral SPPs can be reversibly switched between“on”(transparent)and“off”(opaque)by non-volatile structural state transitions in the dielectric constants of the chalcogenide glass Ge2Sb2Te5.Furthermore,by controlling the Fermi energy of the graphene-coating layer,the nanowire can output either non-chiral or chiral SPPs.A thermal-electric model was built to illustrate the possibility of ultrafast on/off switching of the SPPs at the terminus of the nanowire.Finally,we show that a selective,lateral sorting of sub-10-nm enantiomers can be achieved via the GCC nanowire.Chiral nanoparticles with opposite handedness experience transverse forces that differ in both their sign and magnitude.Our design may pave the way for plasmonic nanowire networks and tunable nanophotonic devices,which require the ultrafast switching of SPPs,and provide a possible approach for a compact,enantiopure synthesis. | Tun Cao Long Tian Huawei Liang Kai-Rong Qin | 2018 | Microsystems & Nanoengineering2018,4,1: | 1 |
| 11 | Analysis of the genomic landscape of primary central nervous system lymphoma using whole-genome sequencing in Chinese patients显示文摘Primary central nervous system lymphoma(PCNSL)is an uncommon non-Hodgkin’s lymphoma with poor prognosis.This study aimed to depict the genetic landscape of Chinese PCNSLs.Whole-genome sequencing was performed on 68 newly diagnosed Chinese PCNSL samples,whose genomic characteristics and clinicopathologic features were also analyzed.Structural variations were identified in all patients with a mean of 349,which did not significantly influence prognosis.Copy loss occurred in all samples,while gains were detected in 77.9%of the samples.The high level of copy number variations was significantly associated with poor progression-free survival(PFS)and overall survival(OS).A total of 263 genes mutated in coding regions were identified,including 6 newly discovered genes(ROBO2,KMT2C,CXCR4,MYOM2,BCLAF1,and NRXN3)detected in≥10%of the cases.CD79B mutation was significantly associated with lower PFS,TMSB4X mutation and high expression of TMSB4X protein was associated with lower OS.A prognostic risk scoring system was also established for PCNSL,which included Karnofsky performance status and six mutated genes(BRD4,EBF1,BTG1,CCND3,STAG2,and TMSB4X).Collectively,this study comprehensively reveals the genomic landscape of newly diagnosed Chinese PCNSLs,thereby enriching the present understanding of the genetic mechanisms of PCNSL. | Xianggui Yuan Teng Yu Jianzhi Zhao Huawei Jiang Yuanyuan Hao Wen Lei Yun Liang Baizhou Li Wenbin Qian | 2023 | Frontiers of Medicine2023,17,5: | 0 |
| 12 | MoO_(x) nanoclusters on Mo-doped TiO_(2) nanosheets with enhanced singlet oxygen generation and sulfide conversion abilities for photocatalytic aerobic oxidative desulfurization显示文摘Photocatalytic aerobic oxidation desulfurization(PAODS)is a promising and sustainable alternative to conventional,energyintensive desulfurization techniques for petroleum products.However,its development is greatly plagued by the low capability in generating highly reactive oxygen species and sluggish kinetics of sulfide oxidation of reported photocatalysts.Here we report a class of MoO_(x)nanocluster decorated on ultrathin Mo-doped TiO_(2)nanosheet(MoO_(x)/MoTiO)catalyst for efficiently facilitating the photocatalytic aerobic oxidation of sulfides.We demonstrate that MoO_(x)/MoTiO can not only promote the generation of highly reactive singlet oxygen(^(1)O_(2))but also enhance the aerobic conversion of sulfides,which leads to a record dibenzothiophene oxidation activity of 3.90 mmol g^(-1)h^(-1).The multiple experimental characterizations and density functional theory calculations collectively reveal that the doped-Mo sites can interact with the photogenerated excitons,enabling directly energy transfer generation of^(1)O_(2)through a new exciton modulation mechanism,and the coordination unsaturated MoO_(x)clusters play the role of co-catalyst to enhance the separation of charge carriers,and effectively catalyze the reaction between sulfides and1O_(2)to form sulfones. | Suting Xie Xinyu Zhao Dongxiao Wang Huawei Yang Lixia Yang Liangjiu Bai Donglei Wei Wenxiang Wang Ying Liang Hou Chen Shaojun Guo | 2024 | Science China Chemistry2024,67,1: | 0 |
| 13 | Low-bias,high-photoresponsivity SnSe2 nanofilm with an Au split-ring array-based THz detector toward 6G communication显示文摘6G technology with the four characteristics of an intelligent endogenous,secure endogenous,multi-domain convergence,and integrated computing network,will help society toward an intelligent era[1].The low power consumption and high photoresponsivity of 6G core devices,and particularly the improvement of detector performance. | Qi SONG Zhiwen ZHOU Yifei XU Min ZHANG Junbo YANG Huawei LIANG Tianwu WANG Peiguang YAN | 2023 | Science China(Information Sciences)2023,66,6: | 0 |
| 14 | Tunable and efficient microwave absorption from mesophase pitch carbide with designable electromagnetic properties显示文摘In order to obtain the microwave absorption(MA)materials with light weight,high efficiency and tunable properties,the carbonized mesophase pitch(CMP)with the variation in carbonization temperatures and particle sizes were prepared and characterized.The carbonization temperature mainly controlled the graphitization degree of the CMP to affect their conductive loss.The carbon residues were generated on the CMP surface when the temperature was higher than 700℃,which contributed significantly to the polarization loss of the CMP.For scale regulation,the segregation between the particles in the paraffin ring caused by the reduction particles of CMP carbonization at 750℃(750 CMP)resulted in a significant reduction in conductive losses while improving their impedance matching.The 750 CMP over 300 mesh sieved had the strongest MA properties of-53 d B at 3.4 GHz within 5.5 mm.Moreover,the prepared CMPs were multi-layer compounded and optimized by CST microwave studio.The synergistic effect derived from the improved impedance matching and the enhanced interfacial polarization resulted in significant reflection loss in multi-layer CMP.Overall,these findings lead to the systematically regulation of carbon-based materials for MA,showing an attractive application prospect for the preparation of high-performance MA materials. | Junyu Lu Haoruo Zhang Yang Chen Mushan Yuan Mei Liang Zhengguang Heng Huawei Zou | 2023 | Defence Technology(防务技术)2023,28,10: | 0 |
| 15 | Pore structure of porous Mg-1Mn-xZn alloy fabricated by metal–gas eutectic unidirectional solidification显示文摘Lotus-type porous Mg-1 wt.% Mn-xZn(x = 0 wt.%, 1 wt.% and 2 wt.%) alloys were fabricated by metal–gas eutectic unidirectional solidification(the Gasar method). Effects of Zn addition and the fabrication process on the porosity, pore diameter and microstructure of the porous Mg alloys were investigated. Zn addition from 0 wt.% to 1 wt.% and 2 wt.% to the Mg-1 wt.% Mn alloy decreased the porosity from41.2% to 36.9% and 35.8%, respectively, with the same preparation processing. In the lotus-type porous Mg-1 wt.%Mn-1 wt.%Zn alloy, the porosities and average pore diameters changed with hydrogen pressures from 0.1 to 0.6 MPa. Conical areas that were rich in elemental Zn existed below the directional pores, and precipitates were also found in conical areas. Homogeneous directional pores existed in the lower portion of the ingot, and coarser directional pores and finer non-directional pores formed in the upper part. A theoretical model of the change in porosity with hydrogen pressure agreed well with the calculated porosities in the steady bubble growing area. The compressive strength of Mg-1 wt.Mn-Zn alloys can be increased by around 20 MPa through rising Zinc content from 1 wt.% to 2 wt.%, which basically linearly decline with the increasing of porosity. This work provides the basis for Gasar Mg-Zn-Mn alloy synthesis in biological applications and shows that the Gasar process is a promising method to fabricate Mg-Zn-Mn alloys with directional pores and a controllable pore structure. | Canxu Zhou Gangqiang Liang Yuan Liu Huawei Zhang Xiang Chen Yanxiang Li | 2022 | Journal of Magnesium and Alloys2022,10,8: | 0 |
| 16 | Mercury release behaviors of Guizhou bituminous coal during co-pyrolysis: Influence of chlorella显示文摘Co-pyrolysis of coal and seaweed can not only effectively decrease the carbon footprint but also improve the quality and output of coal pyrolysis products,however,the influence of seaweed on thermal releasing behaviors of mercury during co-pyrolysis process are still unclear.In this work,the chlorella and Guizhou bituminous coal were mixed and used to reveal the mercury release behavior during co-pyrolysis by the temperature programmed pyrolysis experiments,thermogravimetric and differential thermogravimetric analysis(TG-DTG)and thermogravimetry-mass spectrometry(TG-MS)methods,offering a sufficient explanation on the control technology of mercury pollutants in co-pyrolysis.The results exhibited that a large amount of reducing gases such as CO,H_(2) and H_(2)O were generated in chlorella at the temperature range of 100-500℃,which was favorable for the transformation from oxidized mercury to elemental mercury,thus remarkably increased the release of elemental mercury in the raw coal sample.The mixed chlorella also significantly lowered the decomposition temperature range(from 400-600 to 300-400℃)of pyrite-bound mercury and decreased the decomposition temperatures of the pyrite-bound mercury species.Additionally,in the copyrolysis about 91.82%of mercury was released into the gas phase below 400℃ and was 13.77% higher than that of in individual pyrolysis of coal. | Huawei Zhang Yifan Zhou Ting Liu Xiaopeng Tian Yuhan Zhang Juan Wang Mingzhu Zhang Thipphasone Phoutthavong Peng Liang | 2022 | Journal of Environmental Sciences2022,34,9: | 0 |
| 17 | Ex vivo cartilage explant model for the evaluation of chondrocyte-targeted exosomes显示文摘There is no efficient tracking system available for the therapeutic molecules delivered to cartilage.The dense matrix covering the cartilage surface is the main biological barrier that the therapeutic molecules must overcome.In this study,we aimed to establish a system that can dynamically and effectively track the therapeutic molecules delivered to cartilage.To this aim,we adopted bovine and human cartilage explants as ex vivo models for chondrocyte-targeted exosome dispersion.The efficiency of drug delivery was evaluated using frozen sections.The results of this study showed that the penetration and distribution of chondrocyte-targeted exosomes in cartilage explants can be tracked dynamically.Thus,ex vivo cartilage explants provide an effective and economic system to evaluate therapeutic drugs encapsulated in chondrocyte-targeted exosomes in preclinical studies. | KAN OUYANG MEIQUAN XU YUJIE LIANG XIAO XU LIMEI XU CAINING WEN ZHUAN QIN YIXIN XIE HUAWEI ZHANG LI DUAN DAPING WANG | 2022 | BIOCELL2022,46,6: | 0 |
| 18 | A Novel Braking Control Strategy for Hybrid Electric Buses Based on Vehicle Mass and Road Slope Estimation显示文摘Proper braking force distribution strategies can improve both stability and economy performance of hybrid electric vehicles,which is prominently proved by many studies.To achieve better dynamic stable performance and higher energy recovery efficiency,an effective braking control strategy for hybrid electric buses(HEB)based on vehicle mass and road slope estimation is proposed in this paper.Firstly,the road slope and the vehicle mass are estimated by a hybrid algorithm of extended Kalman filter(EKF)and recursive least square(RLS).Secondly,the total braking torque of HEB is calculated by the sliding mode controller(SMC),which uses the information of brake intensity,whole vehicle mass,and road slope.Finally,comprehensively considering driver’s braking intention and regulations of the Economic Commission for Europe(ECE),the optimal proportional relationship between regenerative braking and pneumatic braking is obtained.Furthermore,related simulations and experiments are carried out on the hardware-in-the-loop test bench.Results show that the proposed strategy can effectively improve the braking performance and increase the recovered energy through precise control of the braking torque. | Zijun Liu Shuo Cheng Jinzhao Liu Qiong Wu Liang Li Huawei Liang | 2022 | Chinese Journal of Mechanical Engineering2022,35,6: | 0 |
| 19 | Research on Nonlinear Frequency Compression Method of Hearing Aid with Adaptive Compression Ratio显示文摘To make full use of the residual audible frequency band of hearing-loss patients and improve the intelligibility of speech,an adaptive nonlinear frequency compression(NFC)algorithm is proposed,which amplifies signals below the cutoff frequency while compresses signals above the cutoff frequency.Firstly,high-frequency signals are decomposed to critical band signals according to the BARK scale.Secondly,the global compression ratio is determined according to the patient's cutoff frequency and maximum audible frequency.Thirdly,the sub-band compression ratio is adaptively determined based on the global compression ratio and normalized average energy of subband signals.Finally,the high frequency signals are transposed to low frequency bands by compression mapping,and the phases are adjusted to the same as the original low frequency signals.Experimental results of speech intelligibility with nine subjects demonstrate that compared to conventional amplitude amplification and nonlinear frequency compression algorithms the proposed algorithm significantly improves the intelligibility of initials and sentences,while not affects the intelligibility of finals and tones significantly. | Xia Wang Hongming Shen Huawei Tao Ruiyu Liang Xing Deng Haijian Shao Li Zhao Cairong Zou | 2019 | Computer Modeling in Engineering & Sciences2019,,11: | 0 |