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| 1 | Experimental investigation of railway train-induced vibrations of surrounding ground and a nearby multi-story building显示文摘In this paper, a field experiment was carried out to study train-induced environmental vibrations. During the field experiment, velocity responses were measured at different locations of a six-story masonry structure near the Beijing-Guangzhou Railway and along a small road adjacent to the building. The results show that the velocity response levels of the environmental ground and the building floors increase with train speed, and attenuate with the distance to the railway track. Heavier freight trains induce greater vibrations than lighter passenger trains. In the multi-story building, the lateral velocity levels increase monotonically with floor elevation, while the vertical ones increase with floor elevation in a fluctuating manner. The indoor floor vibrations are much lower than the outdoor ground vibrations. The lateral vibration of the building along the direction of weak structural stiffness is greater than along the direction with stronger stiffness. A larger room produces greater floor vibrations than the staircase at the same elevation, and the vibration at the center of a room is greater than at its corner. The vibrations of the building were compared with the Federal Transportation Railroad Administration (FTA) criteria for acceptable ground-borne vibrations expressed in terms of rms velocity levels in decibels. The results show that the train-induced building vibrations are serious, and some exceed the allowance given in relevant criterion. | Xia He Chen Jianguo Wei Pengbo Xia Chaoyi G. De Roeck G. Degrande | 2009 | Earthquake Engineering and Engineering Vibration2009，8，1： | 13 |
| 2 | Design and Implementation of a 3D Ocean Virtual Reality and Visualization Engine显示文摘In this study,a 3D virtual reality and visualization engine for rendering the ocean,named VV-Ocean,is designed for marine applications.The design goals of VV-Ocean aim at high fidelity simulation of ocean environment,visualization of massive and multidimensional marine data,and imitation of marine lives.VV-Ocean is composed of five modules,i.e.memory management module,resources management module,scene management module,rendering process management module and interaction management module.There are three core functions in VV-Ocean:reconstructing vivid virtual ocean scenes,visualizing real data dynamically in real time,imitating and simulating marine lives intuitively.Based on VV-Ocean,we establish a sea-land integration platform which can reproduce drifting and diffusion processes of oil spilling from sea bottom to surface.Environment factors such as ocean current and wind field have been considered in this simulation.On this platform oil spilling process can be abstracted as movements of abundant oil particles.The result shows that oil particles blend with water well and the platform meets the requirement for real-time and interactive rendering.VV-Ocean can be widely used in ocean applications such as demonstrating marine operations,facilitating maritime communications,developing ocean games,reducing marine hazards,forecasting the weather over oceans,serving marine tourism,and so on.Finally,further technological improvements of VV-Ocean are discussed. | CHEN Ge LI Bo TIAN Fenglin JI Pengbo LI Wenqing | 2012 | Journal of Ocean University of China2012，11，4： | 10 |
| 3 | Construction and initial analysis of five Fosmid libraries of mitochondrial genomes of cotton(Gossypium)显示文摘Cotton(Gossypium)is an important crop providing textile fiber and edible oil.To gain the insights into mechanism of the cytoplasmic male sterility(CMS)inheritance,we constructed five fosmid libraries of mitochondrial genomes from mitotype of G.harknessii Brandegee.(one CMS line and its restorer),mitotype of G.hirsutum L.(one CMS line and its maintainer),and G.barbadense L.The numbers of the clones in these libraries ranged from 1152 to 2016 with an average insert size of 36.2 to 38.4 kb,equivalent to 70–119.3 mitogenomes.The libraries were screened with 28 markers derived from the conservative sequences and yielded 22,19,26,21,and 23 positive clones,respectively.These positive clones were used to construct the physical map of G.harknessii Brandegee.CMS line and G.barbadense L.mitogenomes that shared six syntenis regions.A total of 30 genes in nine clusters showed conservative and had high similarity with those in the mitochondrial genomes of cotton,Carica papaya,Cucurbita pepo and Nicotiana tabacum.Further investigation indicated that gene rrn26 had two copies in all five cotton mitogenomes,while genes atp1,rrn5 and rrn18 had two copies only in G.barbadense L.The positive clones and physical map are considered being useful resources in cotton genomics research. | LI ShuangShuang LIU GuoZheng CHEN ZhiWen WANG YuMei LI PengBo HUA JinPing | 2013 | Chinese Science Bulletin2013，58，36： | 5 |
| 4 | Prevalence and clinical significance of pathogenic germline BRCA1/2 mutations in Chinese non-small cell lung cancer patients显示文摘Objective: Germline alterations in the breast cancer susceptibility genes type 1 and 2, BRCA1 and BRCA2, predispose individuals to hereditary cancers, including breast, ovarian, prostate, pancreatic, and stomach cancers.Accumulating evidence suggests inherited genetic susceptibility to lung cancer.The present study aimed to survey the prevalence of pathogenic germline BRCA mutations(gBRCAm) and explore the potential association between gBRCAm and disease onset in Chinese advanced non-small cell lung cancer(NSCLC) patients.Methods: A total of 6,220 NSCLC patients were screened using capture-based ultra-deep targeted sequencing to identify patients harboring germline BRCA1/2 mutations.Results: Out of the 6,220 patients screened, 1.03%(64/6,220) of the patients harbored the pathogenic gB RCAm, with BRCA2 mutations being the most predominant mutations(49/64, 76.5%).Patients who developed NSCLC before 50 years of age were more likely to carry gBRCAm(P = 0.036).Among the patients harboring classic lung cancer driver mutations, those with concurrent gBRCAm were significantly younger than those harboring the wild-type gBRCA(P = 0.029).By contrast, the age of patients with or without concurrent gBRCAm was comparable to those of patients without the driver mutations(P = 0.972).In addition, we identified EGFR-mutant patients with concurrent gBRCAm who showed comparable progression-free survival but significantly longer overall survival(P = 0.002) compared to EGFR-mutant patients with wild-type germline BRCA.Conclusions: Overall, our study is the largest survey of the prevalence of pathogenic gBRCAm in advanced Chinese NSCLC patients.Results suggested a lack of association between germline BRCA status and treatment outcome of EGFR-TKI.In addition,results showed a positive correlation between pathogenic gB RCAm and an early onset of NSCLC. | Xingsheng Hu Dongyong Yang Yalun Li Li Li Yan Wang Peng Chen Song Xu Xingxiang Pu Wei Zhu Pengbo Deng Junyi Ye Hanhan Zhang Analyn Lizaso Hao Liu Xinru Mao Hai Huang Qian Chu Chengping Hu | 2019 | Cancer Biology & Medicine2019，16，3： | 4 |
| 5 | Mild Breakthrough Infection in a Healthcare Professional Working in the Isolation Area of a Hospital Designated for Treating COVID-19 Patients—Shaanxi Province,China,March,2021显示文摘Summary What is already known about this topic?Healthcare workers are at high risk of acquiring COVID-19 from occupational exposure to COVID-19 virus during their daily medical service work.Excellent infection prevention and control measures and adequate personal protective equipment(PPE)are essential to reduce the risk of hospital-acquired COVID-19. | Chaofeng Ma Songtao Xu Yecheng Yao Pengbo Yu You Xu Rui Wu Hailong Chen Xiaoping Dong | 2021 | China CDC weekly2021，3，19： | 4 |
| 6 | Phase Boundary Mapping in ZrNiSn Half-Heusler for Enhanced Thermoelectric Performance显示文摘The solubility range of interstitial Ni in the ZrNi1+xSn half-Heusler phase is a controversial issue,but it has an impact on the thermoelectric properties.In this study,two isothermal section phase diagrams of the Zr-Ni-Sn ternary system at 973K and 1173 K were experimentally constructed based on the binary phase diagrams of Zr-Ni,Zr-Sn,and Ni-Sn.The thermodynamic equilibrium phases were obtained after a long time of heating treatment on the raw alloys prepared by levitation melting.Solubilities of x<0:07 at 973 K and x<0:13 at 1173 K were clearly indicated.An intermediate-Heusler phase with a partly filled Ni void was observed,which is believed to be beneficial to the lowered lattice thermal conductivity.The highest ZT value~0:71 at 973 K was obtained for ZrNi_(1.11)Sn_(1.04).The phase boundary mapping provides an important instruction for the further optimization of ZrNiSn-based materials and other systems. | Xiaofang Li Pengbo Yang Yumei Wang Zongwei Zhang Dandan Qin Wenhua Xue Chen Chen Yifang Huang Xiaodong Xie Xinyu Wang Mujin Yang Cuiping Wang Feng Cao Jiehe Sui Xingjun Liu Qian Zhang | 2020 | Research2020，，1： | 2 |
| 7 | Boron-doping induced lithophilic transition of graphene for dendrite-free lithium growth显示文摘Li metal,possessing advantages of high theoretical specific capacity and low electrochemical potential,is regarded as the most promising anode material for next-generation batteries.However,despite decades of intensive research,its practical application is still hindered by safety hazard and low Coulombic efficiency,which is primarily caused by dendritic Li deposition.To address this issue,restraining dendrite growth at the nucleation stage is deemed as the most effective method.By utilizing the difference of electronegativity between boron atoms and carbon atoms,carbon atoms around boron atoms in boron-doped graphene(BG)turn into lithiophilic sites,which can enhance the adsorption capacity to Li^(+)at the nucleation stage.Consequently,an ultralow overpotential of 10 mV at a current density of 0.5 mA/cm^(2) and a high average Coulombic efficiency of 98.54%over more than 140 cycles with an areal capacity of 2 mAh/cm^(2) at a current density of 1 m A/cm^(2) were achieved.BG-Li|LiFePO_(4) full cells delivered a long lifespan of480 cycles at 0.5 C and excellent rate capability.This work provides a novel method for rational design of dendrite-free Li metal batteries by regulating nucleation process. | Wei Liu Pengbo Zhai Shengjian Qin Jing Xiao Yi Wei Weiwei Yang Shiqiang Cui Qian Chen Chunqiao Jin Shubin Yang Yongji Gong | 2021 | Journal of Energy Chemistry2021，30，5： | 2 |
| 8 | Effect of tetramethylpyrazine on the spatial learning and memory function of rats after focal cerebral ischemia显示文摘BACKGROUND: Tetramethylpyrazine (TMP) presents the effect of anti-platelet aggregation, reduces arterial resistance, increases cerebral blood flow, and improves microcirculation. OBJECTIVE: To observe the effects of TMP on the learning and memory abilities and the number of neurons in cortex and hippocampus after focal cerebral ischemia in rats DESIGN: A randomized controlled trial. SETTING: Department of Human Anatomy and Histological Embryology, School of Medicine, Xi’an Jiaotong University. MATERIALS: Fifty adult male Sprague-Dawley rats, weighing 250-300 g were supplied by the Experimental Animal Center, School of Medicine, Xi’an Jiaotong University. TMP was purchased from Wuxi Seventh Pharmaceutical Co.Ltd (Lot Number: 2004051106, Specification: 2 mL/piece). METHODS: The experiments were carried out in School of Medicine of Xi’an Jiaotong University from June 2004 to May 2005. The 50 rats were randomly divided into five groups according to the random number table method: sham-operated group, cerebral ischemia control group, low-dose TMP group, middle-dose TMP group and high-dose TMP group, 10 rats in each group. Rats in the TMP groups were immediately treated with intraperitoneal injection of TMP of 40, 80 and 120 mg/kg respectively, and those in the sham-operated group and cerebral ischemia control group were injected intraperitoneally by isovolume saline, once a day for 14 days successively. On the 15th day, the spatial learning and memory abilities of the rats were assessed with the Morris water maze test, and then the changes of neuron numbers in cortex and hippocampus were observed by Nissl staining of brain sections. MAIN OUTCOME MEASURES: The results of Morris water maze test and the changes of neuron numbers in cortex and hippocampus by Nissl staining of brain sections were observed. RESULTS: Finally 39 rats were involved in the analysis of results, and the other 11 died of excessive anesthesia or failure in model establishment. ① The rats in the cerebral ischemia control group manifested obvious spatial cognitive deficits in the place navigation trial and spatial probe trial. The mean values of escape latency in the sham-operated group, low, middle and high-dose TMP groups were obviously shorter than that in the cerebral ischemia control group [(23.92±2.21), (41.84±3.74), (39.50±3.80), (31.38±3.72), (61.60±3.61) s, P < 0.05-0.01]. In the spatial probe trial, significant differences in the percentage of time spending in the former platform quadrant and frequency of crossing the former platform site in the sham-operated group, lose, middle and high-dose TMP groups were obviously higher or more than those in the cerebral ischemia control group [(36.27±3.42) %, (35.84±2.54)%, (38.43±3.08)%, (36.51±1.96)%, (22.24±3.46)%; (11±1), (10±1), (8±1), (8±1), (4±1) times, P < 0.01]. ② In the morphological observation, the numbers of neurons in ipsilateral (left) parietal cortex in the sham-operated group, low, middle and high-dose TMP groups were obviously more than that in the cerebral ischemia control group [(98±8), (65±5), (53±6), (57±6), (37±6)/0.625 mm2, P < 0.01], but the number of neurons in left hippocampus had no obvious differences among the groups (P > 0.05). CONCLUSION: TMP can improve obviously the spatial learning and memory function after permanent focal cerebral ischemia in rats, and the neuroprotective role of the drug in cortex may be involved in its mechanism. | Jianjun Zhao Yong Liu Xinlin Chen Jianxin Liu Yingfang Tian Pengbo Zhang Qianyan Kang Fen Qiu | 2006 | Neural Regeneration Research2006，1，2： | 2 |
| 9 | Erratum to Prevalence and clinical significance of pathogenic germline BRCA1/2 mutations in Chinese non-small cell lung cancer patients显示文摘In the published article1,the affiliation for the first author,Xingshcng Hu,is'Department of Medical Oncology,Cancer Hospital,Chinese Academy of Medical Sciences',we would like to update it to'Department of Medical Oncology,National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital,Chinese Academy of Medical Sciences and Peking Union Medical College,Beijing,100021,China'.We apologize for the errors and for any confusion it may have caused. | Xingsheng Hu Dongyong Yang Yalun Li Li Li Yan Wang Peng Chen Song Xu Xingxiang Pu Wei Zhu Pengbo Deng Junyi Ye Hanhan Zhang Analyn Lizaso Hao Liu Xinru Mao Hai Huang Qian Chu Chengping Hu | 2020 | Cancer Biology & Medicine2020，17，2： | 1 |
| 10 | NAD^(+) salvage governs the immunosuppressive capacity of mesenchymal stem cells显示文摘Mesenchymal stem/stromal cells(MSCs)possess robust immunoregulatory functions and are promising therapeutics for inflammatory disorders.This capacity is not innate but is activated or‘licensed’by inflammatory cytokines.The licensing mechanism remains unclear.Here,we examined whether inflammatory cytokines metabolically reprogrammed MSCs to confer this immunoregulatory capacity.In response to stimulation by inflammatory cytokines,MSCs exhibited a dramatic increase in the consumption of glucose,which was accompanied by an enhanced use of nicotinamide adenine dinucleotide(NAD^(+))and increased expression of nicotinamide phosphoribosyltransferase(NAMPT),a central enzyme in the salvage pathway for NAD^(+) production.When NAD^(+) synthesis was blocked by inhibiting or depleting NAMPT,the immunosuppressive function of MSCs induced by inflammatory cytokines was greatly attenuated.Consequently,when NAD^(+) metabolism in MSCs was perturbed,their therapeutic benefit was decreased in mice suffering from inflammatory bowel disease and acute liver injury.Further analysis revealed that NAMPT-driven production of NAD^(+) was critical for the inflammatory cytokine-induced increase in glycolysis in MSCs.Furthermore,the increase in glycolysis led to succinate accumulation in the tricarboxylic acid cycle,which led to hypoxia-inducible factor 1α(HIF-1α)stabilization and subsequently increased the transcription of key glycolytic genes,thereby persistently maintaining glycolytic flux.This study demonstrated that unlike its proinflammatory role in immune cells,NAD^(+) metabolism governs the anti-inflammatory function of MSCs during inflammation. | Jiankai Fang Pengbo Hou Shisong Liu Muqiu Zuo Zhanhong Liu Wangwang Chen Yuyi Han Yanan Li Tingting Wang Chao Feng Peishan Li Changshun Shao Yufang Shi | 2023 | Cellular & Molecular Immunology2023，20，10： | 1 |
| 11 | Temporal and spatial distribution of metabotropic glutamate receptor 5 during development in the rat cortex and hippocampus显示文摘Metabotropic glutamate receptor 5 (mGluR5) is expressed by neurons in zones of active neurogenesis and is involved in the development of neural stem cells in vivo and in vitro.We examined the expression of mGluR5 in the cortex and hippocampus of rats during various prenatal and postnatal periods using immunohistochemistry.During prenatal development,mGluR5 was primarily localized to neuronal somas in the forebrain.During early postnatal periods,the receptor was mainly present on somas in the cortex.mGluR5 immunostaining was visible in apical dendrites and in the neuropil of neurons and persisted throughout postnatal development.During this period,pyramidal neurons were strongly labeled for the receptor.In the hippocampal CA1 region,mGluR5 immunoreactivity was more intense in the stratum oriens,stratum radiatum,and lacunosum moleculare at P0,P5 and P10 relative to P60.mGluR5 expression increased significantly in the molecular layer and decreased significantly in the granule cell layer of the dentate gyrus at P5,P10 and P60 in comparison with P0.Furthermore,some mGluR5-positive cells were also bromodeoxyuridine-or NeuroD-positive in the dentate gyrus at P14.These results demonstrate that mGluR5 has a differential expression pattern in the cortex and hippocampus during early growth,suggesting a role for this receptor in the control of domain specific brain developmental events. | Xinli Xiao Ming Hu Pengbo Yang Lin Zhang Xinlin Chen Yong Liu | 2011 | Neural Regeneration Research2011，6，17： | 1 |
| 12 | GPU Accelerated Marine Data Visualization Method显示文摘The study of marine data visualization is of great value. Marine data, due to its large scale, random variation and multiresolution in nature, are hard to be visualized and analyzed. Nowadays, constructing an ocean model and visualizing model results have become some of the most important research topics of ‘Digital Ocean'. In this paper, a spherical ray casting method is developed to improve the traditional ray-casting algorithm and to make efficient use of GPUs. Aiming at the ocean current data, a 3D view-dependent line integral convolution method is used, in which the spatial frequency is adapted according to the distance from a camera. The study is based on a 3D virtual reality and visualization engine, namely the VV-Ocean. Some interactive operations are also provided to highlight the interesting structures and the characteristics of volumetric data. Finally, the marine data gathered in the East China Sea are displayed and analyzed. The results show that the method meets the requirements of real-time and interactive rendering. | LI Bo CHEN Ge TIAN Fenglin SHAO Baomin JI Pengbo | 2014 | Journal of Ocean University of China2014，13，6： | 1 |
| 13 | A raster scan SAR system for ultra-wide swath imaging显示文摘 | WANG Pengbo LIU Wei CHEN Jie | 2014 | Remote Sensing Letters2014，5，9： | 1 |
| 14 | Guiding and routing of a weak signal via a reconfigurable gravity-like potential显示文摘We demonstrate both experimentally and theoretically the trapping and guiding of a weak signal pulse via a selfaccelerating Airy pulse. This is achieved by launching the Airy pulse in the anomalous dispersion regime of an optical fiber, thereby inducing a gravity-like potential that can compel the signal pulse in the normal dispersion regime to undergo co-acceleration. Such guiding pulse by pulse can be controlled at ease simply by altering the acceleration conditions of the Airy pulse. Furthermore, the guided signal can be featured with either single or double peaks, which is explained by using the theory of fundamental and second-order quasi-modes associated with the gravity-like potential. Our work represents, to our knowledge, the first demonstration of pulse guiding in the anomalous dispersion regime of any self-accelerating pulse. | ZHILI LI PING ZHANG XUE MU PENGBO JIA YI HU ZHIGANG CHEN JINGJUN XU | 2019 | Photonics Research2019，7，9： | 1 |
| 15 | Arabidopsis cryptochrome 1 promotes stomatal development through repression of AGB1 inhibition of SPEECHLESS DNA-binding activity显示文摘Cryptochromes are blue light photoreceptors that mediate various light responses in plants and mammals. The heterotrimeric G-protein is known to regulate various physiological processes in plants and mammals. In Arabidopsis, cryptochrome 1(CRY1) and the G-protein β subunit AGB1 act antagonistically to regulate stomatal development.The molecular mechanism by which CRY1 and AGB1 regulate this process remains unknown.Here, we show that Arabidopsis CRY1 acts partially through AGB1, and AGB1 acts through SPEECHLESS(SPCH), a master transcription factor that drives stomatal initiation and proliferation, to regulate stomatal development. We demonstrate that AGB1 physically interacts with SPCH to block the b HLH DNA-binding domain of SPCH and inhibit its DNA-binding activity. Moreover, we demonstrate that photoexcited CRY1 represses the interaction of AGB1 with SPCH to release AGB1 inhibition of SPCH DNA-binding activity, leading to the expression of SPCH-target genes promoting stomatal development. Taken together, our results suggest that the mechanism by which CRY1 promotes stomatal development involves positive regulation of the DNA-binding activity of SPCH mediated by CRY1 inhibition of the AGB1-SPCH interaction. We propose that the antagonistic regulation of SPCH DNA-binding activity by CRY1 and AGB1 may allow plants to balance light and G-protein signaling and optimize stomatal density and pattern. | Xiaoli Cao Pengbo Xu Yao Liu Guangqiong Yang Minqing Liu Li Chen Yingyu Cheng Peng Xu Langxi Miao Zhilei Mao Wenxiu Wang Shuang Kou Tongtong Guo Hong‐Quan Yang | 2021 | Journal of Integrative Plant Biology2021，63，11： | 1 |
| 16 | Enhanced mass transfer in three-dimensional single-atom nickel catalyst with open-pore structure for highly efficient CO_(2) electrolysis显示文摘Design of efficient catalysts for electrochemical reduction of carbon dioxide (CO_(2)) with high selectivity and activity is of great challenge, but significant for managing the global carbon balance. Herein, a series of three-dimensional (3D) single-atom metals anchored on graphene networks (3D SAM-G) with open-pore structure were successfully mass-produced via a facile in-situ calcination technique assisted by NaCl template. As-obtained 3D SANi-G electrode delivers excellent CO Faradaic efficiency (FE) of >96% in the potential range of −0.6 to −0.9 V versus reversible hydrogen electrode (RHE) and a high current density of 66.27 mA cm^(−2) at −1.0 V versus RHE, outperforming most of the previously reported catalysts tested in H-type cells. Simulations indicate that enhanced mass transport within the 3D open-pore structure effectively increases the catalytically active sites, which in turn leads to simultaneous enhancement on selectivity and activity of 3D SANi-G toward CO_(2) electroreduction. The cost-effective synthesis approach together with the microstructure design concept inspires new insights for the development of efficient electrocatalysts. | Pengbo Zhai Xiaokang Gu Yi Wei Jinghan Zuo Qian Chen Wei Liu Huaning Jiang Xingguo Wang Yongji Gong | 2021 | Journal of Energy Chemistry2021，30，11： | 1 |
| 17 | Oblique extension of pre-existing structures and its control on oil accumulation in eastern Bohai Sea显示文摘Based on 3D seismic data, the evolution mechanism and characteristics of faults were investigated to reveal the structural origin and its control on differential hydrocarbon accumulation through comprehensive analyses, including structure style analysis, fault activity analysis, analogue modelling and comparison among the wells. The complex fault system with differently trending faults resulted from strike-slip and rifting in Paleogene was partly activated, developed successively and stretched obliquely by the near-NS extensional stress field in Neogene. In the area little affected by pre-existing faults, new faults nearly perpendicular to the extension direction developed. The structural development in the study area was not caused by transpressional strike slip. Under the oblique extension effect of pre-existing faults, if the angle between the strike of pre-existing fault and the extensional direction is different, the strike-slip and extensional stresses are different in ratio. The larger the angle between the two is, the stronger the extensional component, the poorer the sealing ability of the fault, and the stronger the oil and gas migration capacity will be. Conversely, the smaller the angle between the two is, the stronger the strike-slip component, the better the sealing ability of the fault, and the poorer the oil and gas migration capacity will be. The accumulation condition analysis results considering the fault trend are in good agreement with the oil and gas shows in wells drilled in this area. | REN Jian LYU Dingyou CHEN Xingpeng LIU Pengbo GUAN Dayong SU Kai ZHANG Hongguo | 2019 | Petroleum Exploration and Development2019，46，3： | 0 |
| 18 | A Green Conversion Coating on a Magnesium Alloy for Corrosion Protection显示文摘A novel coating on the Mg1Mn alloy was produced by anodic polarization combined with hydrothermal treatment(AP+H)in 0.1 M Na2CO3 solution.The microstructure and protection of the coating were evaluated.The coating consisted of MgCO3,Mg(OH)2 and MgO,and provided satisfactory protection in 3.5 wt%NaCl with a corrosion rate of 0.07 mm y−1 in 72 h.However,after that period,the corrosion rate of the specimen increased due to the damage of the coating.The failure of the coating was strongly related to the second phase particles(e.g.Zr particles)or impurities in the matrix.The AP+H coating is supposed to be used as a primer coating for Mg applications in kitchen ware,biomedical areas or industry. | Tong Bu Ruijie Jia Tao Ying Andrej Atrens Pengbo Chen Dajiang Zheng Fuyong Cao | 2023 | Acta Metallurgica Sinica(English Letters)2023，36，10： | 0 |
| 19 | High-Q collective Mie resonances in monocrystalline silicon nanoantenna arrays for the visible light显示文摘Dielectric optical antennas have emerged as a promising nanophotonic architecture for manipulating the propagation and localization of light.However,the optically induced Mie resonances in an isolated nanoantenna are normally with broad spectra and poor��-factors,limiting their performances in sensing,lasing,and nonlinear optics.Here,we dramatically enhance the��-factors of Mie resonances in silicon(Si)nanoparticles across the optical band by arranging the nanoparticles in a periodic lattice.We select monocrystalline Si with negligible material losses and develop a unique method to fabricate nanoparticle arrays on a quartz substrate.By extinction dispersion measurements and electromagnetic analysis,we can identify three types of collective Mie resonances with��-factors∼500 in the same nanocylinder arrays,including surface lattice resonances,bound states in the continuum,and quasi-guided modes.Our work paves the way for fundamental research in strong light-matter interactions and the design of highly efficient light-emitting metasurfaces. | Zhenghe Zhang Pengbo Liu Wanli Lu Ping Bai Bingchang Zhang Zefeng Chen Stefan A.Maier Jaime Gómez Rivas Shaojun Wang Xiaofeng Li | 2023 | Fundamental Research2023，3，5： | 0 |
| 20 | A Generic TC-Based Method to Find the Weakness in Different Phases of Masking Schemes显示文摘Masking is one of the most commonly used Side-Channel Attack(SCA) countermeasures and is built on a security framework, such as the ISW framework, and ensures theoretical security through secret sharing.Unfortunately, the theoretical security cannot guarantee practical security, because several possible weaknesses may exist in the actual implementation. These weaknesses likely come from the masking schemes or are introduced by the implementation methods. Finding the possible weakness of the masking scheme is an interesting and important issue for real applications. In this paper, the possible weaknesses for masking schemes in FieldProgrammable Gate Array(FPGA) design are discussed. It was found that the combinational circuit is the key to the security of masking schemes. The Toggle Count(TC) method and its extension are utilized to evaluate the security of masking schemes in the design phase and the implementation phase separately. Comparing different logic-level simulators for the Xilinx FPGA platform, the behavioral and post-translate simulations are considered as the analysis method in the design phase, while the post-map and the post-route simulations are used to find the weakness during the implementation phase. Moreover, a Standard Delay Format(SDF) based improvement scheme is proposed to significantly increase the effectiveness of the TC model. | Ming Tang Yuguang Li Yanbin Li Pengbo Wang Dongyan Zhao Weigao Chen Huanguo Zhang | 2018 | Tsinghua Science and Technology2018，23，5： | 0 |
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