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| 1 | IMPROVED SINGULAR VALUE DECOMPOSITION TECHNIQUE FOR DETECTING AND EXTRACTING PERIODIC IMPULSE COMPONENT IN A VIBRATION SIGNAL显示文摘Vibration acceleration signals are often measured from case surface of a running machine to monitor its condition. If the measured vibration signals display to have periodic impulse components with a certain frequency, there may exist a corresponding local fault in the machine, and if further extracting the periodic impulse components from the vibration signals, the severity of the local fault can be estimated and tracked. However, the signal-to-noise ratios (SNRs) of the vibration acceleration signals are often so small that the periodic impulse components are submersed in much background noises and other components, and it is difficult or inconvenient for us to detect and extract the periodic impulse components with the current common analyzing methods for vibration signals. Therefore, another technique, called singular value decomposition (SVD), is tried to be introduced to solve the problem. First, the principle of detecting and extracting the signal periodic components using singular value decomposition is summarized and discussed. Second, the infeasibility of the direct use of the existing SVD based detecting and extracting approach is pointed out. Third, the approach to construct the matrix for SVD from the signal series is improved largely, which is the key program to improve the SVD technique; Other associated improvement is also proposed. Finally, a simulating application example and a real-life application example on detecting and extracting the periodic impulse components are given, which showed that the introduced and improved SVD technique is feasible. | LiuHongxing LiJian ZhaoYing QuLiangsheng | 2004 | Chinese Journal of Mechanical Engineering2004，17，3： | 15 |
| 2 | Lane departure warning systems and lane line detection methods based on image processing and semantic segmentation:A review显示文摘Recently,the development and application of lane line departure warning systems have been in the market.For any of the systems,the key part of lane line tracking,lane line identification,or lane line departure warning is whether it can accurately and quickly detect lane lines.Since 1990 s,they have been studied and implemented for the situations defined by the good viewing conditions and the clear lane markings on road.After then,the accuracy for particular situations,the robustness for a wide range of scenarios,time efficiency and integration into higher-order tasks define visual lane line detection and tracking as a continuing research subject.At present,these kinds of lane marking line detection methods based on machine vision and image processing can be divided into two categories:the traditional image processing and semantic segmentation(includes deep learning)methods.The former mainly involves feature-based and model-based steps,and which can be classified into similarity-and discontinuity-based ones;and the model-based step includes different parametric straight line,curve or pattern models.The semantic segmentation includes different machine learning,neural network and deep learning methods,which is the new trend for the research and application of lane line departure warning systems.This paper describes and analyzes the lane line departure warning systems,image processing algorithms and semantic segmentation methods for lane line detection. | Weiwei Chen Weixing Wang Kevin Wang Zhaoying Li Huan Li Sheng Liu | 2020 | Journal of Traffic and Transportation Engineering(English Edition)2020，7，6： | 14 |
| 3 | Assessing the Dynamics of Grassland Net Primary Productivity in Response to Climate Change at the Global Scale显示文摘Understanding the net primary productivity(NPP) of grassland is crucial to evaluate the terrestrial carbon cycle. In this study, we investigated the spatial distribution and the area of global grassland across the globe. Then, we used the Carnegie-Ames-Stanford Approach(CASA) model to estimate global grassland NPP and explore the spatio-temporal variations of grassland NPP in response to climate change from 1982 to 2008. Results showed that the largest area of grassland distribution during the study period was in Asia(1737.23 × 104 km^2), while the grassland area in Europe was relatively small(202.83 × 10~4 km^2). Temporally, the total NPP increased with fluctuations from 1982 to 2008, with an annual increase rate of 0.03 Pg C/yr. The total NPP experienced a significant increasing trend from 1982 to 1995, while a decreasing trend was observed from 1996 to 2008. Spatially, the grassland NPP in South America and Africa were higher than the other regions, largely as a result of these regions are under warm and wet climatic conditions. The highest mean NPP was recorded for savannas(560.10 g C/(m^2·yr)), whereas the lowest was observed in open shrublands with an average NPP of 162.53 g C/(m^2·yr). The relationship between grassland NPP and annual mean temperature and annual precipitation(AMT, AP, respectively) varies with changes in AP, which indicates that, grassland NPP is more sensitive to precipitation than temperature. | LIU Yangyang YANG Yue WANG Qian KHALIFA Muhammad ZHANG Zhaoying TONG Linjing LI Jianlong SHI Aiping | 2019 | Chinese Geographical Science2019，29，5： | 12 |
| 4 | 小样本情况下差异表达基因鉴别的参数统计分析显示文摘目的探索小样本情况下基于不同理论的统计方法在鉴别差异表达基因时的性能。方法以实验资料为基础,估计残差方差的分布参数、基因的平均表达及差异表达水平,按照一定差异比例模拟理论数据,用于分析倍数法、t检验、随机方差模型、SAM及对数后验比法的性能及特征。结果随机方差模型、SAM及对数后验比法在鉴别差异表达基因的准确性上相近,均高于t检验和倍数法,t检验又稍高于倍数法。结论倍数法的性能受极端值的影响严重,t检验在基因特异性标准误较小情况下增加鉴别的假阳性率,而随机方差模型、SAM和对数后验比法由于统计量的计算建立在多基因的基础上,鉴别的准确性较高。 | 贺宪民 武建虎 贺佳 XIANG Zhaoying | 2005 | 中国卫生统计2005，22，3： | 10 |
| 5 | Cardiovascular magnetic resonance imaging findings in children with myocarditis显示文摘 | Liu Guiying Yang Xi Su Ying Xu Jimin Wen Zhaoying | 2014 | Chinese Medical Journal2014，，21： | 9 |
| 6 | Footprint Problem with Angle of Attack Optimization for High Lifting Reentry Vehicle显示文摘A formal analysis to footprint problem with effects of angle of attack (AOA) is presented. First a flexible and rapid standardized method for footprint generation is developed. Zero bank angle control strategy and the maximum crossrange method are used to obtain virtual target set; afterward, closed-loop bank angle guidance law is used to find footprint by solving closest approach problem for each element in virtual target set. Then based on quasi-equilibrium glide condition, the typical inequality reentry trajectory constraints are converted to angle of attack lower boundary constraint. Constrained by the lower boundary, an original and practical angle of attack parametric method is proposed. By using parametric angle of attack profile, optimization algorithm for angle of attack is designed and the impact of angle of attack to footprint is discussed. Simulations with different angle of attack profiles are presented to demonstrate the performance of the proposed footprint solution method and validity of optimal algorithm. | LI Huifeng ZHANG Ran LI Zhaoying ZHANG Rui | 2012 | Chinese Journal of Aeronautics2012，25，2： | 8 |
| 7 | A microporous surface containing Si3N4/Ta microparticles of PEKK exhibits both antibacterial and osteogenic activity for inducing cellular response and improving osseointegration显示文摘As an implantable biomaterial,polyetherketoneketone(PEKK)exhibits good mechanical strength but it is biologically inert while tantalum(Ta)possesses outstanding osteogenic bioactivity but has a high density and elastic modulus.Also,silicon nitride(SN)has osteogenic and antibacterial activity.In this study,a microporous surface containing both SN and Ta microparticles on PEKK(STP)exhibiting excellent osteogenic and antibacterial activity was created by sulfonation.Compared with sulfonated PEKK(SPK)without microparticles,the surface properties(roughness,surface energy,hydrophilicity and protein adsorption)of STP significantly increased due to the SN and Ta particles presence on the microporous surface.In addition,STP also exhibited outstanding antibacterial activity,which inhibited bacterial growth in vitro and prevented bacterial infection in vivo because of the presence of SN particles.Moreover,the microporous surface of STP containing both SN and Ta particles remarkably induced response(e.g.,proliferation and differentiation)of rat bone mesenchymal stem(rBMS)cells in vitro.Furthermore,STP significantly improved new bone regeneration and osseointegration in vivo.Regarding the induction of cellular response in vitro and improvement of osseointegration in vivo,the microporous surface containing Ta was better than the surface with SN particles.In conclusion,STP with optimized surface properties activated cellular responses in vitro,enhanced osseointegration and prevented infection in vivo.Therefore,STP possessed the dual biofunctions of excellent osteogenic and antibacterial activity,showing great potential as a bone substitute. | Xinglong Hu Shiqi Mei Fan Wang Songchao Tang Dong Xie Chao Ding Wenli Du Jun Zhao Lili Yang Zhaoying Wu Jie Wei | 2021 | Bioactive Materials2021，6，10： | 6 |
| 8 | Implantable PEKK/tantalum microparticles composite with improved surface performances for regulating cell behaviors,promoting bone formation and osseointegration显示文摘Polyetherketoneketone(PEKK)exhibits admirable biocompatibility and mechanical performances but bioinert while tantalum(Ta)possesses excellent osteogenesis and osseointegration but high elastic modulus and density,and processing is too difficult and expensive.In the present study,combining of the advantages of both PEKK and Ta,implantable composites of PEKK/Ta were fabricated by blending PEKK with Ta microparticles of 20 v%(PT20)and 40 v%(PT40)content.In comparison with PT20 and PEKK,the surface hydrophilicity,surface energy,roughness and proteins adsorption as well as mechanical performances of PT40 significantly increased because of the higher Ta particles content in PEKK.Furthermore,PT40 exhibited the mechanical performances(e.g.,compressive strength and modulus of elasticity)close to the cortical bone of human.Compared with PT20 and PEKK,PT40 with higher Ta content remarkably enhanced the responses(including adhesion,proliferation and osteogenic differentiation)of MC3T3-E1 cells in vitro.Moreover,PT40 markedly improved bone formation as well as osseointegration in vivo.In short,incorporation of Ta microparticles into PEKK created implantable composites with improved surface performances,which played key roles in stimulating cell responses/bone formation as well as promoting osseointegration.PT40 might have great potential for bear-loading bone substitute. | Xinglong Hu Shiqi Mei Fan Wang Jun Qian Dong Xie Jun Zhao Lili Yang Zhaoying Wu Jie Wei | 2021 | Bioactive Materials2021，6，4： | 6 |
| 9 | β-Ga_2O_3 thin film grown on sapphire substrate by plasmaassisted molecular beam epitaxy显示文摘Monoclinic gallium oxide(Ga_2O_3) has been grown on(0001) sapphire(Al_2O_3) substrate by plasma-assisted molecular beam epitaxy(PA-MBE). The epitaxial relationship has been confirmed to be [010]( 2ˉ01) β-Ga_2O_3||[ 011ˉ0](0001)Al_2O_3 via in-situ reflection high energy electron diffraction(RHEED) monitoring and ex-situ X-ray diffraction(XRD) measurement. Crystalline quality is improved and surface becomes flatter with increasing growth temperature, with a best full width at half maximum(FWHM) of XRD ω-rocking curve of( 2ˉ01) plane and root mean square(RMS) roughness of 0.68° and 2.04 nm for the sample grown at 730 °C,respectively. Room temperature cathodoluminescence measurement shows an emission at ~417 nm, which is most likely originated from recombination of donor–acceptor pair(DAP). | Jiaqi Wei Kumsong Kim Fang Liu Ping Wang Xiantong Zheng Zhaoying Chen Ding Wang Ali Imran Xin Rong Xuelin Yang Fujun Xu Jing Yang Bo Shen Xinqiang Wang | 2019 | Journal of Semiconductors2019，40，1： | 4 |
| 10 | The Escherichia coli O157:H7 DNA detection on a gold nanoparticle-enhanced piezoelectric biosensor显示文摘This paper presents development of a quartz crystal microbalance (QCM) biosensor for real-time de- tection of E. coli O157:H7 DNA based on nanogold particles amplification. Many inner Au nanoparticles were immobilized onto the thioled surface of the Au electrode, then more specific thiolated sin- gle-stranded DNA (ssDNA) probes could be fixed through Au-SH bonding. The hybridization was in- duced by exposing the ssDNA probe to the complementary target DNA of E. coli O157:H7 gene eaeA, then resulted in a mass change and corresponding frequency shifts ( △f ) of the QCM. The outer avidin-coated Au nanoparticles could combine with the target DNA to increase the mass. The electro- chemical techniques, cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) were adopted to manifest and character each step. The target DNA corresponding to 2.0×103 colony forming unit (CFU)/mL E. coli O157:H7 cells can be detected by this biosensor, so it is practical to develop a sensitive and effective QCM biosensor for pathogenic bacteria detection based on specific DNA analy- sis. The piezoelectric biosensing system has potential for further applications, such as food safety and environment monitoring, and this approach lays the groundwork for incorporating the method into an integrated system for in-field bacteria detection. | WANG LiJiang WEI QingShan WU ChunSheng HU ZhaoYing JI Jian WANG Ping | 2008 | Chinese Science Bulletin2008，53，8： | 4 |
| 11 | AUTOREGRESSIVE MODEL AND POWER SPECTRUM CHARATERISTICS OF CURRENT SIGNAL IN HIGH FREQUENCY GROUP PULSE MICRO-ELECTROCHEMICAL MACHINING显示文摘在高频率组脉搏的极间差距尺寸的鉴定(HGPECM ) 微电气化学的用机器制造主要被讨论。汽车回归(AR ) 越过阴极和阳极流动的组脉搏电流的模型与不同处理在不同状况下面被创造参数和极间差距尺寸。基于的在电流表明的 AR 模型显示 AR 模型的顺序关于不同处理条件和极间差距尺寸显然是不同的;而且,它关于动态系统的稳定性是不同的,即格林动态系统的函数的白噪音反应是多样的。另外,力量光谱方法与不同极间差距尺寸关于当前的信号在动态时间系列的分析被使用,结果证明那在那里存在一座最强壮的力量光谱山峰,典型力量光谱(每秒字符数),到水流,与不同极间差距有关的信号在 0 应用软件公牛的范围缩放 5 kHz.Therefore ,当前的信号的每秒字符数能实现极间差距的鉴定。 | TANG Xinglun ZHANG Zhijing ZHOU Zhaoying YANG Xiaodong | 2006 | Chinese Journal of Mechanical Engineering2006，19，2： | 3 |
| 12 | On-chip fast mixing by a rotary peristaltic micropump with a single structural layer显示文摘In this work,a rotary pump based micromixer for on-chip rapid mixing and liquid transportation is demonstrated and characterized.Both pumping and mixing are realized using a microfluidic chip with a single structural polydimethylsiloxane layer and a portable electric control system.The rotary pump consists of an annular channel and is driven by a motor and magnets.The flow field caused by the peristaltic movement of the channel membrane of the rotary pump is simulated and analyzed.By statistically calculating and comparing the normalized standard deviations of the flow velocity components in a microchannel,it is revealed that up-and-down mixing is the fastest,followed by segment mixing and parallel mixing.Two mixing styles,segment mixing and parallel mixing,were experimentally demonstrated using the chip.The pump achieved 90% of the mixing index in 1 s for the segment mixing type.As for the parallel mixing type,the mixing index was up to 90% after 5 s,which is more than 100-fold improvement compared to conventional mixing by interfacial diffusion.The mixing speeds in both directions were improved prominently by increasing the rotational speed of the pump. | DU Min MA ZengShuai YE XiongYing ZHOU ZhaoYing | 2013 | Science China(Technological Sciences)2013，56，4： | 3 |
| 13 | TLR9 agonist enhances radiofrequency ablation-induced CTL responses, leading to the potent inhibition of primary tumor growth and lung metastasis显示文摘Radiofrequency ablation(RFA)is the most common approach to thermal ablation for cancer therapy.Unfortunately,its efficacy is limited by incomplete ablation,and further optimization of RFA is required.Here,we demonstrate that incubation at 65°C triggers more EG7 tumor cell death by necrosis than treatment at 45°C,and the 65°C-treated cells are more effective at inducing antigen-specific CD8^(+)cytotoxic T lymphocyte(CTL)responses after injection in mice than the 45°C-treated ones.Dendritic cells(DCs)that phagocytose 65°C-treated EG7 cells become mature with upregulated MHCII and CD80 expression and are capable of efficiently inducing effector CTLs in mouse tumor models.RFA(65°C)therapy of EG7 tumors induces large areas of tumor necrosis and stimulates CTL responses.This leads to complete regression of small(~100 mm^(3))tumors but fails to suppress the growth of larger(~350 mm^(3))tumors.The administration of the Toll-like receptor-9(TLR9)agonist unmethylated cytosine-phosphorothioate-guanine oligonucleotide(CpG)to DCs phagocytosing 65°C-treated EG7 cells enhances the expression of MHCII and CD40 on DCs as well as DC-induced stimulation of CTL responses.Importantly,the intratumoral administration of CpG following RFA also increases the frequencies of tumor-associated immunogenic CD11b−CD11c^(+)CD103^(+)DC2 and CD11b+F4/80+MHCII+M1 macrophages and increases CD4^(+)and CD8^(+)T-cell tumor infiltration,leading to enhanced CD4^(+)T cell-dependent CTL responses and potent inhibition of primary RFA-treated or distant untreated tumor growth as well as tumor lung metastasis in mice bearing larger tumors.Overall,our data indicate that CpG administration,which enhances RFA-induced CTL responses and ultimately potentiates the inhibition of primary tumor growth and lung metastasis,is a promising strategy for improving RFA treatment,which may assist in optimizing this important cancer therapy. | Aizhang Xu Lifeng Zhang Jingying Yuan Fatma Babikr Andrew Freywald Rajni Chibbar Michael Moser Wenjun Zhang Bing Zhang Zhaoying Fu Jim Xiang | 2019 | Cellular & Molecular Immunology2019，16，10： | 3 |
| 14 | 基因芯片数据的标准化及分析方法显示文摘 | 贺宪民 贺佳 XIANG Zhaoying | 2004 | 中国卫生统计2004，21，2： | 3 |
| 15 | The composition and distribution of metal clusters in the MoFe protein from a nifZ deletion strain(DJ 194)of Azotobacter vinelandii显示文摘Through the anaerobic chromatography on the columns of DEAE 52, Q-Sepharose and Sephacryl S-200, a nitrogenase MoFe protein (?nifZ Av1) was obtained from a nifZ deleted mutant of Azotobacter vinelandii (stain DJ194). The results of Western blotting after anoxic native electro-phoresis and SDS-PAGE showed that ?nifZ Av1 was similar to wild type MoFe protein (OP Av1) at the electrophoretic mobility, molecular weight and subunit composition. Fur-thermore, ?nifZ Av1 was also similar to OP Av1 at the mo-lybdenum content, EPR signal (g≈4.3, 3.65 and 2.01), and the molar extinction coefficient (?ε) of circular dichroism (CD) at 660 nm region. All of these indicated that, besides having the same α2β2 composition as OP Av1, the ?nifZ Av1 also contained equal amount of reductive FeMoco in the spin state of S=3/2 to OP Av1. However, the iron content and sub-strate (C2H2, H+ and N2)-reduction activity of ?nifZ Av1 were 74% and 46%―50% of those of OP Av1, respectively. Fur-thermore, the ?ε at around 450 nm, which reflects P-cluster in Av1, was obviously lower than that of OP Av1. It suggested that the difference between ?nifZ Av1 and OP Av1 resulted from P-cluster rather than FeMoco, and from the half num-ber of P-cluster in ?nifZ Av1, but the composition or redox state of P-cluster in ?nifZ Av1 were not changed. Thus it could propose that ?nifZ Av1 is composed of two different αβ subunit pairs. One is a FeMoco- and P-cluster-containing pair, and the other is a P-cluster-deficient but FeMoco-con- taining pair. Since the deletion of nifZ gene leads to the defi-ciency of only one of two P-clusters in a α2β2 tetramer, the assembly of P-cluster may not simply depend on one gene product, and so a possible mechanism of NifZ is supposed here. | ZHOUHuina ZHANGChunxi ZHAOYing BIANShaomin WANGHuangping HUANGJufu | 2005 | Chinese Science Bulletin2005，50，13： | 3 |
| 16 | Research Progress of Pectinase显示文摘Pectinase is a group of enzymes that can decompose complex pectin into small molecules such as galacturonic acid. It is mainly produced by microorganisms by liquid and solid fermentation and immobilized cell method. Its representative strain is Aspergillus niger,and yeast and actinomycete are also high-yield strains for screening pectinase. Pectinase can be used in many fields of life and production,such as clarification of fruit juice and wine,pulping of paper making industry,degumming of textile,extracting of traditional Chinese medicine components,animal feed and other industries,which is economic,green,and efficient and pollution-free. Moreover,pectinase is one of the four major enzymes in the world,and its practical application has very important significance,and the prospect of pectinase application is also important. | Lili SONG Huihui PEI Zhaoying ZHANG | 2019 | Medicinal Plant2019，10，3： | 3 |
| 17 | Advances in Studies on Extraction Methods and Physiological Activities of Jujube Flavonoids显示文摘Jujube is rich in nutrients and functional active ingredients. For example,jujube flavonoids have significant anti-oxidation,anticancer,antibacterial and anti-inflammatory functions. This paper elaborated the advances in the studies about the extraction methods,purification methods,antioxidant properties,stability and antibacterial effects of jujube flavonoids,in order to provide a certain reference for the study of jujube flavonoids. | Zhaoying ZHANG Ya’nan ZHANG Jing HAN | 2019 | Medicinal Plant2019，10，3： | 2 |
| 18 | Initiation and Development of the Late Cenozoic Uplift of Daluo Mountains,Northeastern Margin of the Tibetan Plateau显示文摘Daluo Mountains lie at front of the arcuate tectonic belt at the northeastern margin of the Tibetan Plateau,and are the landform boundary zone between the active Tibetan Plateau and the stable North China Craton.Studying of the late Cenozoic uplift evolution of Daluo Mountains is important for understanding the expansion mechanism of the northeastern margin of the Tibetan Plateau and its influence on the western North China Craton.In this study,the late Cenozoic uplift of Daluo Mountains is constructed from the development of the late Cenozoic alluvial fan around Daluo Mountains.The entire sedimentary sequence and framework of the fan was revealed by the newly obtained drilling core data.The cosmogenic nuclide,optically stimulated luminescence,and detrital zircon U-Pb dating results provide new evidences for discussion about the initial timing of the late Cenozoic uplift of Daluo Mountains and the key stages of uplift during the Pleistocene.The late Cenozoic alluvial fan at front of Daluo Mountains overlies a set of fluvial-facies strata;therefore,development of the alluvial-fan marks the start of late Cenozoic uplift of Daluo Mountains.The timing of this event can be constrained to~4.64 Ma.Two extensive gravel layers(dated to ca.0.76–0.6 Ma and~0.05 Ma)developed during the Pleistocene,indicating two episodes of considerable uplift.This study provides a new time scale for the uplift and expansion of the arcuate tectonic belt at the northeastern margin of the Tibetan Plateau. | KOU Linlin DONG Xiaopeng LI Zhenhong CUI Jiawei MA Zhaoying LI Hailong | 2022 | Acta Geologica Sinica(English Edition)2022，96，6： | 2 |
| 19 | The effect of nozzle layout on droplet ejection of a piezo-electrically actuated micro-atomizer显示文摘我们这里在一个微雾化器的微滴喷射上学习嘴布局的效果,它被 MEMS 技术与穿的嘴制作并且由一个压电的磁盘激活。一个理论模型首先为联合系统在液体房间描绘声学的波浪繁殖的这 piezoelectric-liquid-structure 被造,它从嘴决定了微滴形成。形式的分析数字地被执行预言反响的频率并且模仿对应压力波浪领域。由比较压力的轮廓与设计的嘴布局在嘴入口在液体固体接口上挥动的振幅,在不同颤动模式下面的设备的行为能被预言。试验性地,一个阻抗分析器被用来测量系统的反响的频率。有不同的嘴布局的 atomizers 的三种类型为在喷射表演上测量嘴分发的效果被制作。微滴产生的可视化实验被执行,这些设备的体积流动率被测量。在实验和预言之间的好协议证明仅仅嘴的增加不能提高微滴产生,从频率的一个观点的嘴分发的一个图案为反响的相关 atomizer 是必要的。 | Yanying Feng Zhaoying Zhou Junhua Zhu Guibin Du | 2007 | Acta Mechanica Sinica2007，23，2： | 2 |
| 20 | N/Ce doped graphene supported Pt nanoparticles for the catalytic oxidation of formaldehyde at room temperature显示文摘Pt catalysts with nitrogen-doped graphene oxide (GO) as support and CeO_(2)as promoter were prepared by impregnation method,and their catalytic oxidation of formaldehyde (HCHO) at room temperature was tested.The Pt-CeO_(2)/N-rGO (reduced GO) with a mass fraction of 0.7% Pt and 0.8%CeO_(2)exhibited an excellent catalytic performance with the 100% conversion of HCHO at room temperature.Physicochemical characterization demonstrated that nitrogendoping greatly increased the defect degree and the specific surface area of GO,enhanced the dispersion of Pt and promoted more zero-valent Pt.The synergistic effect between CeO_(2)and Pt was also beneficial to the dispersion of Pt.Nitrogen-doping promoted the production of more Ce3+ions,generating more oxygen vacancies,which was conducive to O_(2)adsorption.As a result,the catalyst exhibited enhanced redox properties,leading to the best catalytic activity.Finally,an attempt to propose the reaction mechanism of HCHO oxidation has been made. | Yaodong Guo Zhaoying Di Xiaonan Guo Ying Wei Runduo Zhang Jingbo Jia | 2023 | Journal of Environmental Sciences2023，，3： | 2 |
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