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| 1 | Laser direct writing and characterizations of flexible piezoresistive sensors with microstructures显示文摘Functional materials with high viscosity and solid materials have received more and more attentions in flexible pressure sensors,which are inadequate in the most used molding method.Herein,laser direct writing(LDW)method is proposed to fabricate flexible piezoresistive sensors with microstructures on PDMS/MWCNTs composites with an 8%MWCNTs mass fraction.By controlling laser energy,microstructures with different geometries can be obtained,which significantly impacts the performances of the sensors.Subsequently,curved microcones with excellent performance are fabricated under parameters of f=40 kHz and v=150 mm·s^(-1).The sensor exhibits continuous multi-linear sensitivity,ultrahigh original sensitivity of 21.80%kPa^(-1),wide detection range of over 20 kPa,response/recovery time of~100 ms and good cycle stability for more than 1000 times.Besides,obvious resistance variation can be observed when tiny pressure(a peanut of 30 Pa)is applied.Finally,the flexible piezoresistive sensor can be applied for LED brightness controlling,pulse detection and voice recognition. | Chenying Zhang Wei Zhou Da Geng Cheng Bai Weida Li Songyue Chen Tao Luo Lifeng Qin Yu Xie | 2021 | Opto-Electronic Advances2021，4，4： | 7 |
| 2 | Tomato DCL2b is required for the biosynthesis of 22-nt small RNAs, the resulting secondary siRNAs, and the host defense against ToMV显示文摘The tomato encode four functional DCL families,of which DCL2 is poorly studied.Here,we generated loss-of-function mutants for a tomato DCL2 gene,dcl2b,and we identified its major role in defending against tomato mosaic virus in relation to both natural and manual infections.Genome-wide small RNA expression profiling revealed that DCL2b was required for the processing 22-nt small RNAs,including a few species of miRNAs.Interestingly,these DCL2b-dependent 22-nt miRNAs functioned similarly to the DCL1-produced 22-nt miRNAs in Arabidopsis and could serve as triggers to generate a class of secondary siRNAs.In particular,the majority of secondary siRNAs were derived from plant defense genes when the plants were challenged with viruses.We also examined differentially expressed genes in dcl2b through RNA-seq and observed that numerous genes were associated with mitochondrial metabolism and hormone signaling under virus-free conditions.Notably,when the loss-of-function dcl2b mutant was challenged with tomato mosaic virus,a group of defense response genes was activated,whereas the genes related to lipid metabolism were suppressed.Together,our findings provided new insights into the roles of tomato DCL2b in small RNA biogenesis and in antiviral defense. | Tian Wang Zhiqi Deng Xi Zhang Hongzheng Wang Yu Wang Xiuying Liu Songyu Liu Feng Xu Tao Li Daqi Fu Benzhong Zhu Yunbo Luo Hongliang Zhu | 2018 | Horticulture Research2018，5，1： | 4 |
| 3 | Mechanical performances and microstructural characteristics of reactive MgO-carbonated silt subjected to freezing-thawing cycles显示文摘The characteristics of reactive magnesia(MgO)-carbonated silt in respect to long-term stability have not been well understood in severely cold climate despite the usage of reactive MgO in enhancing the engineering performances.Under the binder content of 15%and initial water content of 25%,MgO-admixed silt specimens were carbonized for 3 h and 6 h and then subjected to different numbers of freezingthawing(F-T)cycles.After different F-T cycles,the physico-mechanical properties of MgO-carbonated silt were analyzed in comparison with Portland cement(PC)-stabilized silt through physical and unconfined compression tests.Besides,a series of micro tests on MgO-carbonated specimens was performed including X-ray diffraction(XRD),scanning electron microscopy(SEM)and mercury intrusion porosimetry(MIP)tests.The results demonstrate that both mass change ratio and moisture content of carbonated/stabilized silt decrease,and these values of MgO-carbonated silt are significantly lower while the density is higher compared to PC-stabilized silt.The strengths and moduli of MgO-carbonated silt are still two times higher than those of PC-stabilized specimens and the strength change ratio of keeps above0.8 after F-T cycles.There is no visible transformation between nesquehonite and dypingite/hydromagnesite,although the XRD peaks of nesquehonite decrease and the bonding and filling effects weaken slightly.After 6 and 10 F-T cycles,the pore-size characteristics changed from a unimodal distribution to a three-peak and bimodal distribution,respectively.The total,macro and large pore volumes increase obviously while the medium and small pore volumes decrease except for intra-aggregate pore.The findings show better F-T durability of MgO-carbonated silt,which would be helpful for facilitating the application of MgO carbonation in the soil treatment. | Guanghua Cai Songyu Liu Guangyin Du Zhen Chen Xu Zheng Jiangshan Li | 2021 | Journal of Rock Mechanics and Geotechnical Engineering2021，13，4： | 3 |
| 4 | Effects of melt percolation on the Re-Os systematics of continental mantle lithosphere: A case study of spinel peridotite xenoliths from Heilongjiang, NE China显示文摘Os isotope ratios of mantle peridotites have been considered to be largely immune to recent melt-rock interaction. However, Os isotope ratios and PGE (Platinum group elements) concentrations of the Yong'an xenoliths have been significantly modified by melt percolation, and are not suitable for determining the formation age of lithosphere mantle in Yong'an. In this study, the Yong'an spinel peridotite xenoliths are divided into two groups: N-Type and E-Type. The N-Type group including cpx (clinopyroxene)-poor lherzolite and harzburgite, shows a large variation of Cr#(sp) (13.2-48) and sulfur contents (from 171 ppm to below detection limit), whereas the E-Type peridotites are mainly refractory harzburgites and are characterized by high Cr#(sp) (35.3-42.2) and overall low sulfur contents (below 51 ppm). Both types show similar major and REE (rare earth element) patterns. Furthermore, the N-Type peridotites display a restricted range of iridium-group PGE (IPGE), Os/Ir and Ru/Ir ratios (Os/Ir = 0.64-1.12, Ru/Ir = 1.52-1.79) and variable palladium-group PGE (PPGE) contents (3.4-14.9 ppb), whereas the E-Type peridotites show a large variation of Os/Ir and Ru/Ir ratios (Os/Ir = 0.33-0.84, Ru/Ir = 0.94-1.6), and a restricted range of PPGE (4.3-6.9 ppb). 187Os/188Os ratios of E-Type peridotites are higher than those of N-Type peridotites at comparable fertility levels. These results suggest that N-Type peridotites may have been overprinted by metasomatism via small melt fractions, in which the percolation of the volatile-rich, small melt fractions only resulted in LILE (large ion lithophile element) enrichment of clinopyroxene, and their whole rock PGE contents and Re-Os isotope values were little changed. Moreover, E-Type peridotites may have been modified by melt-rock reaction involving relatively large melt fractions, which may result in the formation of secondary cpx and olivine and the removal of IPGE-bearing minerals such as Ru-Os-(Ir) alloys or laurite, followed by precipitation of secondary sulfides from melt with radiogenic isotopic signature. | YU SongYue SONG XieYan XU YiGang CHEN LieMeng LI Jie | 2012 | Science China Earth Sciences2012，55，6： | 1 |
| 5 | Influence of anisotropic stress path and stress history on stiffness of calcareous sands from Western Australia and the Philippines显示文摘Investigation of dynamic properties of carbonate/calcareous soils is important in earthquake and offshore engineering as these soils are commonly encountered in large-scale projects related with energy geomechanics and land reclamation.In this study,the stiffness and stiffness anisotropy of two types of calcareous sands(CS)from the Western Australia and the Philippines were examined using bender elements configured in different directions in stress path setups.Stiffness measurements were taken on specimens subjected to constant p’compression/extension and biaxial stress paths and additional tests were performed on three types of silica sands with different geological origins and particle shapes,which were used as benchmark materials in the study.Compared with the three brands of silica sands,the stiffness of the CS was found to be more significantly influenced by anisotropic loading;an important observation of the experimental results was that stress anisotropy had different weighted influences on the stiffness in different directions,thus influencing stiffness anisotropy.Comparisons were made between the specimens subjected to complex loading paths,and respected model parameters as suggested from published expressions in the literature.These comparisons further highlighted that calcareous soils have different responses in terms of stiffness,stiffness anisotropy and loading history,compared with that of silica-based sands. | Huan He Siyue Li Kostas Senetakis Matthew Richard Coop Songyu Liu | 2022 | Journal of Rock Mechanics and Geotechnical Engineering2022，14，1： | 1 |
| 6 | Research on the aerodynamic characteristics of ellipse wing sail 显示文摘 | HU Yihuai LI Songyue ZENG Xiangming | 2012 | Ad- vanced materials research2012，，： | 1 |
| 7 | Efficient spatio-temporal segmentation for extracting moving objects in video sequences 显示文摘 | Li Renjie Yu Songyu Yang Xiaokang | 2007 | IEEE Consumer Electronics Society2007，53，3： | 1 |
| 8 | Fusion of multispectral and panchromatic satellite images based on contourlet transform and local average gradient 显示文摘 | Song Haohao Yu Songyu Song Li | 2007 | Optical Engineering(S0091-3286)2007，46，2： | 1 |
| 9 | p-/n-Type modulation of 2D transition metal dichalcogenides for electronic and optoelectronic devices显示文摘Two-dimensional layered transition metal dichalcogenides(TMDCs)have demonstrated a huge potential in the broad fields of optoelectronic devices,logic electronics,electronic integration,as well as neural networks.To take full advantage of TMDC characteristics and efficiently design the device structures,one of the most key processes is to control their p-/n-type modulation.In this review,we summarize the p-/n-type modulation of TMDCs based on diverse strategies consisting of intrinsic defect tailoring,substitutional doping,surface charge transfer,chemical intercalation,electrostatic modulation,and dielectric interface engineering.The modulation mechanisms and comparisons of these strategies are analyzed together with a discussion of their corresponding device applications in electronics and optoelectronics.Finally,challenges and outlooks for p-/n-type modulation of TMDCs are presented to provide references for future studies. | Songyu Li Yang Ma Nabonswende Aida Nadege Ouedraogo Famin Liu Congya You Wenjie Deng Yongzhe Zhang | 2022 | Nano Research2022，15，1： | 0 |
| 10 | Growth of centimeter scale Nb_(1−x)W_(x)Se_(2) monolayer film by promoter assisted liquid phase chemical vapor deposition显示文摘Two-dimensional(2D)transition-metal dichalcogenide materials(TMDs)alloys have a wide range of applications in the field of optoelectronics due to their capacity to achieve wide modulation of the band gap with fully tunable compositions.However,it is still a challenge for growing alloys with uniform components and large lateral size due to the random distribution of the crystal nucleus locations.Here,we applied a simple but effective promoter assisted liquid phase chemical vapor deposition(CVD)method,in which the quantity ratio of promoter to metal precursor can be controlled precisely,leading to tiny amounts of transition metal oxide precursors deposition onto the substrates in a highly uniform and reproducible manner,which can effectively control the uniform distribution of element components and nucleation sites.By this method,a series of monolayer Nb_(1−x)W_(x)Se_(2)alloy films with fully tunable compositions and centimeter scale have been successfully synthesized on sapphire substrates.This controllable approach opens a new way to produce large area and uniform 2D alloy film,which has the potential for the construction of optoelectronic devices with tailored spectral responses. | Boxing An Yang Ma Feihong Chu Xuhong Li Yi Wu Congya You Wenjie Deng Songyu Li Yongzhe Zhang | 2022 | Nano Research2022，15，3： | 0 |
| 11 | Binary-ternary transition metal chalcogenides interlayer coupling in van der Waals type-II heterostructure for visible-infrared photodetector with efficient suppression dark currents显示文摘Ternary two-dimentional(2D)materials exhibit diverse physical properties depending on their composition,structure,and thickness.Through forming heterostructures with other binary materials that show similar structure,there can be numerous potential applications of these ternary 2D materials.In this work,we reported the structure of few-layer CrPS_(4)by X-ray diffraction,transmission electron microscope,and electron-density distribution calculation.We also demonstrated a new application of the CrPS_(4)/MoS_(2)heterobilayer:visible-infrared photodetectors with type-II staggered band alignment at room temperature.The response of the heterostructure to infrared light results from a strong interlayer coupling that reduces the energy interval in the junction area.Since the intrinsic bandgap of individual components determines wavelengths,the decrease in energy interval allows better detection of light that has a longer wavelength.We used photoluminescence(PL)spectroscopy,Kelvin probe force microscopy(KPFM)under illumination,and electrical transport measurements to verify the photoinduced charge separation between the CrPS_(4)/MoS_(2)heterostructures.At forward bias,the device functioned as a highly sensitive photodetector,as the wavelength-dependent photocurrent measurement achieved the observation of optical excitation from 532 to 1,450 nm wavelength.Moreover,the photocurrent caused by interlayer exciton reached around 1.2 nA at 1,095 nm wavelength.Our demonstration of the strong interlayer coupling in the CrPS_(4)/MoS_(2)heterostructure may further the understanding of the essential physics behind binary-ternary transition metal chalcogenides heterostructure and pave a way for their potential applications in visible-infrared devices. | Guoliang Xu Danmin Liu Songyu Li Yi Wu Zhenlu Zhang Shaobo Wang Zikun Huang Yongzhe Zhang | 2022 | Nano Research2022，15，3： | 0 |
| 12 | Data-driven Reliability Assessment of an Electric Vehicle Penetrated Grid Utilizing the Diffusion Estimator and Slice Sampling显示文摘Due to the stochasticity of charging behaviors of electric vehicles(EVs),it is difficult to anticipate when charging load demand will be densely concentrated.If massive charging loads and the system peak profile appear at the same time,it may pose a risk to the reliable operation of power grids.For a system integrated with renewable energies,this risk can be much higher because of their unsteady power output.With load measurements more widely collected,this paper presents a data-driven framework to assess the reliability of a power grid considering charging EVs.Specifically,the diffusion estimator is firstly applied to estimate the probability density function of EV charging loads,which possesses both regional adaptivity and good boundary estimation performance.Then,charging load samples are produced through slice sampling.It is capable of sampling from irregularly-shaped distributions with high accuracy.The proposed approach is verified by the numerical results from the simulations on a modified IEEE 30-bus test system based on real measurement data. | Songyu Huang Chengjin Ye Si Liu Wei Zhang Yi Ding Ruoyun Hu Jianbai Li | 2023 | CSEE Journal of Power and Energy Systems2023，9，5： | 0 |
| 13 | Mechanism of action of cordycepin in the treatment of hepatocellular carcinoma via regulation of the Hippo signaling pathway显示文摘Hepatocellular carcinoma(HCC)is one of the common most malignant tumors.This study aimed to determine the in vitro and in vivo anticancer activity of cordycepin and elucidate its mechanism of action.The results of in vitro and in vivo studies revealed that cordycepin inhibited proliferation and migration in HepG-2 cells and inhibited the growth of HepG-2 xenograft-bearing nude mice by inducing apoptosis.Transcriptome sequencing analysis revealed a total of 403 differential genes,which revealed that cordycepin may play an anti-HCC role by regulating Hippo signaling pathway.The regulatory effects of cordycepin on the Hippo signaling pathway was further investigated using a YAP1 inhibitor.The results demonstrated that cordycepin upregulated the expression of MST1 and LAST1,and subsequently inhibited YAP1,which activated the Hippo signaling pathway.This in turn downregulated the expression of GBP3 and ETV5,and subsequently inhibited cell proliferation and migration.Additionally,YAP1 regulated the expression of Bax and Bcl-2,regulated the mitochondrial apoptotic pathway,and induced apoptosis by upregulating the expression of the caspase-3 protein.In summary,this study reveals that cordycepin exerts its anti-hepatocarcinoma effect through regulating Hippo signaling pathway,and GBP3 and ETV5 may be potential therapeutic targets for hepatocarcinoma. | Xiaomin Li Qing Liu Songyu Xie Xiaoping Wu Junsheng Fu | 2024 | Food Science and Human Wellness2024，13，2： | 0 |
| 14 | Tomato LysM receptor kinase 4 mediates chitin-elicited fungal resistance in both leaves and fruit显示文摘Fungal infection is a major cause of crop and fruit losses.Recognition of chitin,a component of fungal cell walls,endows plants with enhanced fungal resistance.Here,we found that mutation of tomato LysM receptor kinase 4(SlLYK4)and chitin elicitor receptor kinase 1(SlCERK1)impaired chitin-induced immune responses in tomato leaves.Compared with the wild type,sllyk4 and slcerk1 mutant leaves were more susceptible to Botrytis cinerea(gray mold).SlLYK4 extracellular domain showed strong binding affinity to chitin,and the binding of SlLYK4 induced SlLYK4-SlCERK1 association.Remarkably,qRT–PCR analysis indicated that SlLYK4 was highly expressed in tomato fruit,andβ-GLUCURONIDASE(GUS)expression driven by the SlLYK4 promoter was observed in tomato fruit.Furthermore,SlLYK4 overexpression enhanced disease resistance not only in leaves but also in fruit.Our study suggests that chitin-mediated immunity plays a role in fruit,providing a possible way to reduce fungal infection-related fruit losses by enhancing the chitin-induced immune responses. | Yingfei Ai Qinghong Li Chenying Li Ran Wang Xun Sun Songyu Chen Xin-Zhong Cai Xingjiang Qi Yan Liang | 2023 | Horticulture Research2023，10，6： | 0 |
| 15 | CMOS-compatible retinomorphic Si photodetector for motion detection显示文摘Efficient motion detection is essential for the Internet of Things.However,it suffers from overloading redundant static background information.Inspired by the human visual system,which is efficient in motion detection,we propose a silicon-based retinomorphic photodetector with a simple metal/insulator/semiconductor(MIS)structure,which is compatible with the complementary metal-oxide-semiconductor(CMOS)industry.In contrast to conventional photodetectors that generate a sustained photocurrent,our retinomorphic photodetector is sensitive only to the change in light intensity and therefore filters the redundant static background.In addition,it shows logarithmic dependence on the light intensity,which simplifies the contrast ratio measurement.Based on our moving object recognition experiment,after filtering background information,the information to be analyzed is reduced to 27.3%,thereby improving the image recognition efficiency in the subsequent processing tasks.This innovative and industry-compatible retinomorphic photodetector will facilitate the construction of future efficient motion detection systems. | Yi WU Wenjie DENG Xiaoqing CHEN Jingjie LI Songyu LI Yongzhe ZHANG | 2023 | Science China(Information Sciences)2023，66，6： | 0 |
| 16 | Model investigation of the low-carbon MgO-treated soil foundation based on CO_(2) overall carbonation显示文摘The overall carbonation of MgO-admixed soil provides not only an efficient and environmentally friendly technique for improving soft ground but also a permanently safe solution for CO_(2) sequestration.To evaluate the carbon sequestration potential and promote the carbonation application in soil improvement,a laboratory-scale model investigation is designed under pressurized carbonation considering the influences of MgO dosage and CO_(2) ventilation mode(way).The temperature,dynamic resilience modulus,and dynamic cone penetration(DCP)were tested to assess the carbonation treatment effect.The physical,strength,and microscopic tests were also undertaken to reveal the evolution mechanisms of CO_(2) migration in the MgO-carbonated foundation.The results indicate that the temperature peaks of MgO-treated foundation emerge at w20 h during hydration,but occur at a distance of 0e25 cm from the gas source within 6 h during carbonation.The dynamic resilience moduli of the model foundation increase by more than two times after carbonation and the DCP indices reduce dramatically.As the distance from the gas inlet increases,the bearing capacity,strength,and carbon sequestration decrease,whereas the moisture content increases.Compared to the end ventilation,the middle ventilation produces a higher carbonation degree and a wider carbonation area.The cementation and filling of nesquehonite and dypingite/hydromagnesite are verified to be critical factors for carbonation evolution and enhancing mechanical performances.Finally,the overall carbonation model is described schematically in three stages of CO_(2) migration.The outcomes would help to facilitate the practical application of CO_(2) sequestration in soil treatment. | Guanghua Cai Songyu Liu Yuqing Zhong Chisun Poon Jiangshan Li | 2023 | Journal of Rock Mechanics and Geotechnical Engineering2023，15，11： | 0 |
| 17 | Instant multicolor super-resolution microscopy with deep convolutional neural network显示文摘Multicolor super-resolution(SR)microscopy plays a critical role in cell biology research and can visualize the interactions between different organelles and the cytoskeleton within a single cell.However,more color channels bring about a heavier budget for imaging and sample preparation,and the use of fluorescent dyes of higher emission wavelengths leads to a worse spatial resolution.Recently,deep convolutional neural networks(CNNs)have shown a compelling capability in cell segmentation,superresolution reconstruction,image restoration,and many other aspects.Taking advantage of CNN’s strong representational ability,we devised a deep CNN-based instant multicolor super-resolution imaging method termed IMC-SR and demonstrated that it could be used to separate different biological components labeled with the same fluorophore,and generate multicolor images from a single superresolution image in silico.By IMC-SR,we achieved fast three-color live-cell super-resolution imaging with〜100 nm resolution over a long temporal duration,revealing the complicated interactions between multiple organelles and the cytoskeleton in a single COS-7 cell. | Songyue Wang Chang Qiao Amin Jiang Di Li Dong Li | 2021 | Biophysics Reports2021，7，4： | 0 |
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