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| 1 | Ultracompact dual-mode waveguide crossing based on subwavelength multimode-interference couplers显示文摘We propose and experimentally demonstrate a novel ultracompact dual-mode waveguide crossing based on subwavelength multimode-interference couplers for a densely integrated on-chip mode-division multiplexing system.By engineering the lateral-cladding material index and manipulating phase profiles of light at the nanoscale using an improved inverse design method, a subwavelength structure could theoretically realize the identical beat length for both TE_0 and TE1, which can reduce the scale of the device greatly. The fabricated device occupied a footprint of only 4.8 μm× 4.8 μm. The measured insertion losses and crosstalks were less than 0.6 d B and-24 d B from 1530 nm to 1590 nm for both TE0 and TE1 modes, respectively. Furthermore, our scheme could also be expandedto design waveguide crossings that support more modes. | WEIJIE CHANG LULUZI LU XINSHU REN DONGYU LI ZEPENG PAN MENGFAN CHENG DEMING LIU MINMING ZHANG | 2018 | Photonics Research2018，6，7： | 4 |
| 2 | Effect of Zr on phase separation,mechanical and corrosion behavior of heterogeneous CoCrFeNiZr_(x) high-etropy alloy显示文摘CoCrFeNi high entropy alloy(HEA)has attracted extensive attention due to its excellent corrosion resistance,but the low strength limits its engineering application prospects.In order to develop CoCrFeNi based HEAs with high strength,ductility and corrosion resistance,the effects of Zr content on the microstructure,mechanical properties and corrosion resistance of heterogeneous CoCrFeNiZr_(x)(x=0,0.25,0.5 and 1)HEAs were investigated in this work.The results indicate that the increase of Zr content can significantly affect the phase stability of the alloy,and promote the formation of intermetallic compounds(Ni_(7)Zr_(2)and/or Laves phase)and the transformation of solid solution from face-centered cubic(FCC)structure(x=0,0.25 and 0.5)to body-centered cubic(BCC)structure(x=1).Reasonable control of the Zr content can endow the alloy excellent comprehensive properties.Especially,for CoCrFeNiZr_(0.25) alloy,composed of FCC matrix and a small amount of Ni_(7)Zr_(2)phases,the yield strength(~655 MPa)is increased by nearly four times higher than that of Zr-free alloy,and it also has good ductility(fracture stain>50%).Meanwhile,the corrosion resistance of CoCrFeNiZr_(0.25) alloy is better than that of SS304.The EIS results show that the addition of Zr reduces the stability of the passive film on the alloy,which can be related to the content of the beneficial oxide in the passive film and the thickness of the passive film through XPS analysis.Moreover,the work functions of different phases in CoCrFeNiZr_(x)alloys were obtained by firstprinciples calculations,which further confirmed the selective corrosion mechanism of the CoCrFeNiZr_(x) alloy combining the experimental results. | Wu Qi Wenrui Wang Xiao Yang Lu Xie Jiaming Zhang Dongyue Li Yong Zhang | 2022 | Journal of Materials Science & Technology2022，，14： | 3 |
| 3 | Small interfering RNA delivery to the neurons near the amyloid plaques for improved treatment of Alzheimer’s disease显示文摘Gene therapy represents a promising treatment for the Alzheimer’s disease(AD). However,gene delivery specific to brain lesions through systemic administration remains big challenge. In our previous work, we have developed an siRNA nanocomplex able to be specifically delivered to the amyloid plaques through surface modification with both CGN peptide for the blood–brain barrier(BBB)penetration and QSH peptide for β-amyloid binding. But, whether the as-designed nanocomplex could indeed improve the gene accumulation in the impaired neuron cells and ameliorate AD-associated symptoms remains further study. Herein, we prepared the nanocomplexes with an siRNA against β-site amyloid precursor protein-cleaving enzyme 1(BACE1), the rate-limiting enzyme of Aβ production, as the therapeutic siRNA of AD. The nanocomplexes exhibited high distribution in the Aβ deposits-enriched hippocampus, especially in the neurons near the amyloid plaques after intravenous administration. In APP/PS1 transgenic mice, the nanocomplexes down-regulated BACE1 in both mRNA and protein levels,as well as Aβ and amyloid plaques to the level of wild-type mice. Moreover, the nanocomplexes significantly increased the level of synaptophysin and rescued memory loss of the AD transgenic mice without hematological or histological toxicity. Taken together, this work presented direct evidences that the design of precise gene delivery to the AD lesions markedly improves the therapeutic outcome. | Qian Guo Xiaoyao Zheng Peng Yang Xiaoying Pang Kang Qian Pengzhen Wang Shuting Xu Dongyu Sheng Liuchang Wang Jinxu Cao Wei Lu Qizhi Zhang Xinguo Jiang | 2019 | Acta Pharmaceutica Sinica B2019，9，3： | 2 |
| 4 | Cryogenic mechanical behavior of a TRIP-assisted dual-phase highentropy alloy显示文摘The recently developed dual-phase(DP)non-equiatomic Fe_(50)Mn_(30)Co_(10)Cr_(10)(at.%)high-entropy alloy(HEA)showed much higher strength and ductility compared to the single-phase equiatomic Fe_(20)Mn_(20)Ni_(20)Co_(20)Cr_(20)(at.%)HEA at room temperature.Herein we probe the cryogenic mechanical properties of the non-equiatomic DP-HEA with different grain sizes and compare with the equiatomic single-phase HEA.Our results show that the cryogenic ultimate tensile strengths of the coarse-grained(~200μm)and fine-grained(~4μm)DP-HEAs reach up to 1,133 and 1,342 MPa,respectively,which are significantly higher than that of the equiatomic single-phase HEAs with similar grain sizes.Furthermore,the fine-grained DP-HEA shows substantial improvement in both strength and ductility compared to the coarse-grained counterparts at cryogenic temperatures.Microstructural analysis reveals that the enhanced mechanical properties of the DP-HEA at cryogenic temperatures are attributed to a more extensive displacive transformation from the face-centered cubic(FCC)matrix into the hexagonal close-packed(HCP)phase compared to that at room temperature.Specifically,the HCP phase fraction in tensile tested fine-grained DP-HEAs increases from~39%to~79%with decreasing temperature from 298 to 77 K.The enhanced transformation behavior is enabled by the reduced stacking fault energy of the material with the decrease of deformation temperatures.The resulting outstanding combination of strength and ductility further suggests that the DP-HEAs are promising candidates as structural materials for cryogenic applications. | Dongyue Li Zhiming Li Lu Xie Yong Zhang Wenrui Wang | 2022 | Nano Research2022，15，6： | 2 |
| 5 | On-chip cyclic-AWG-based 12 × 12 silicon wavelength routing switches with minimized port-to-port insertion loss fluctuation显示文摘With the rapidly increasing bandwidth requirements of optical communication networks, compact and low-cost large-scale optical switches become necessary. Silicon photonics is a promising technology due to its small footprint, cost competitiveness, and high bandwidth density. In this paper, we demonstrate a 12 × 12 silicon wavelength routing switch employing cascaded arrayed waveguide gratings(AWGs) connected by a silicon waveguide interconnection network on a single chip. We optimize the connecting strategy of the crossing structure to reduce the switch's footprint. We develop an algorithm based on minimum standard deviation to minimize the port-toport insertion loss(IL) fluctuation of the switch globally. The simulated port-to-port IL fluctuation decreases by about 3 dB compared with that of the conventional one. The average measured port-to-port IL is 13.03 dB, with a standard deviation of 0.78 dB and a fluctuation of 2.39 dB. The device can be used for wide applications in core networks and data centers. | ZEPENG PAN SONGNIAN FU LULUZI LU DONGYU LI WEIJIE CHANG DEMING LIU MINMING ZHANG | 2018 | Photonics Research2018，6，5： | 2 |
| 6 | Raman spectroscopic study of oxidation and phase transition in W18 O49 nanowires显示文摘 | LU Dongyu CHEN Jian ZHOU Jun | 2007 | J Raman Spectrosc2007，38，： | 1 |
| 7 | Guided Wave Based Damage Detection Method for Aircraft Composite Structures under Varying Temperatures显示文摘Guided waves based damage detection methods using base signals offer the advantages of simplicity of signal generation and reception,sensitivity to damage,and large area coverage;however,applications of the technology are limited by the sensitivity to environmental temperature variations.In this paper,a Spearman Damage Index-based damage diagnosis method for structural health condition monitoring under varying temperatures is presented.First,a PZT sensor-based Guided wave propagation model is proposed and employed to analyze the temperature effect.The result of the analysis shows the wave speed of the Guided wave signal has higher temperature sensitivity than the signal fluctuation features.Then,a Spearman rank correlation coefficient-based damage index is presented to identify damage of the structure under varying temperatures.Finally,a damage detection test on a composite plate is conducted to verify the effectiveness of the Spearman Damage Index-based damage diagnosis method.Experimental results show that the proposed damage diagnosis method is capable of detecting the existence of the damage and identify its location under varying temperatures. | Dongyue Gao Yunlong Ma Zhanjun Wu Yuebin Zheng Hongbo Lu | 2021 | Structural Durability & Health Monitoring2021，15，1： | 1 |
| 8 | Non-invasive microstructure and morphology investigation of the mouse lung:qualitative description and quantitative measurement显示文摘 | Zhang Lu Li Dongyue Luo Shuqian | 2011 | PloS One2011，6，2： | 1 |
| 9 | Zircon classification from cathodoluminescence images using deep learning显示文摘Zircon is a widely-used heavy mineral in geochronological and geochemical research because it can extract important information to understand the history and genesis of rocks. Zircon has various types,and an accurate examination of zircon type is a prerequisite procedure before further analysis.Cathodoluminescence(CL) imaging is one of the most reliable ways to classify zircons. However, current CL image examination is conducted by manual work, which is time-consuming, bias-prone, and requires expertise. An automated and bias-free method for zircon classification is absent but necessary. To this end, deep convolutional neural networks(DCNNs) and transfer learning are applied in this study to classify the common types of zircons, i.e., igneous, metamorphic, and hydrothermal zircons. An atlas with over 4000 CL images of these three types of zircons is created, and three DCNNs are trained using these images. The results of this study indicate that the DCNNs can distinguish hydrothermal zircons from other zircons, as indicated by the highest accuracy of 100%. Although similar textures in igneous and metamorphic zircons pose great challenges for zircon classification, the DCNNs successfully classify 95% igneous and 92% metamorphic zircons. This study demonstrates the high accuracy of DCNNs in zircon classification and presents the great potentiality of deep learning techniques in numerous geoscientific disciplines. | Dongyu Zheng Sixuan Wu Chao Ma Lu Xiang Li Hou Anqing Chen Mingcai Hou | 2022 | Geoscience Frontiers2022，13，6： | 0 |
| 10 | Relationship Between Climate Change and Marmot Plague of Marmota himalayana Plague Focus—the Altun Mountains of the Qinghai-Xizang Plateau,China,2000–2022显示文摘Introduction:Plague is a zoonotic disease that occurs naturally in specific geographic areas.Climate change can influence the populations of the plague host or vector,leading to variations in the occurrence and epidemiology of plague in animals.Methods:In this study,we collected meteorological and plague epidemiological data from the Marmota himalayana plague focus in the Altun Mountains of the Qinghai-Xizang Plateau.The data spanned from 2000 to 2022.We describe the climatic factors and plague epidemic conditions and we describe their analysis by Pearson’s correlation.Results:During the period from 2000 to 2022,the isolation rates of Yersinia pestis(Y.pestis)from marmots and fleas were 9.27%(451/4,864)and 7.17%(118/1,646),respectively.Additionally,we observed a positive rate of F1 antibody of 11.25%(443/3,937)in marmots and 18.16%(142/782)in dogs.With regards to climate,there was little variation,and a decreasing trend in blowing-sand days was observed.The temperature in the previous year showed a negative correlation with the Y.pestis isolation rate in marmots(r=−0.555,P=0.011)and the positive rate of F1 antibody in marmots(r=−0.552,P=0.012)in the current year.The average annual precipitation in the previous two years showed a positive correlation with marmot density(r=0.514,P=0.024),while blowingsand days showed a negative correlation with marmot density(r=−0.701,P=0.001).Furthermore,the average annual precipitation in the previous three years showed a positive correlation with the isolation rate of Y.pestis from marmots(r=0.666,P=0.003),and blowing-sand days showed a negative correlation with marmot density(r=−0.597,P=0.009).Conclusions:The findings of this study indicate that there is a hysteresis effect of climate change on the prevalence of plague.Therefore,monitoring climate conditions can offer significant insights for implementing timely preventive and control measures to combat plague epidemics. | Qun Duan Xiaojin Zheng Zhiqiang Gan Dongyue Lyu Hanyu Sha Xinmin Lu Xiaoling Zhao Asaiti Bukai Ran Duan Shuai Qin Li Wang Jinxiao Xi Di Wu Peng Zhang Deming Tang Zhaokai He Huaiqi Jing Biao Kan Xin Wang | 2024 | China CDC weekly2024，6，4： | 0 |
| 11 | Synthetic strategies and applications towards carbon nanorings and carbon nanobelts显示文摘A bottom-up precise synthesis for single-walled carbon nanotubes(SWCNTs)can overcome the disadvantages of conventional methods,such as impurities and high structural defects.As potential seeds or templates for the SWCNTs bottom-up precise synthesis,carbon nanorings(CNRs)and carbon nanobelts(CNBs)are promising precursors and great progress in their development has been made in recent years[1–9].These molecules are defined as columnar p-conjugated macrocycles,needing the cleavage of at least one CAC bond for CNRs and two CAC bonds for CNBs in order to open their cylindrical skeletons(a macrocyclic arene system connected by single bonds for CNRs,a fully fused macrocyclic arene system for CNBs[9]).In addition,depending on the chiral indices(n,m)of the corresponding carbon nanotubes(CNTs),CNBs are further divided into armchair,chiral,and zigzag types.In this perspective,we will report on recent progress in CNRs and CNBs with a focus on synthetic strategies and molecular structures,and provide a perspective for their future development. | Rong Zhang Jiangyu Zhu Dongyue An Xuefeng Lu Yunqi Liu | 2023 | Science Bulletin2023，，3： | 0 |
| 12 | Uncovering the dominant contribution of intermediate volatility compounds in secondary organic aerosol formation from biomass-burning emissions显示文摘Organic vapors from biomass burning are a major source of secondary organic aerosols(SOAs).Previous smog chamber studies found that the SOA contributors in biomass-burning emissions are mainly volatile organic compounds(VOCs).While intermediate volatility organic compounds(IVOCs)are efficient SOA precursors and contribute a considerable fraction of biomass-burning emissions,their contribution to SOA formation has not been directly observed.Here,by deploying a newly-developed oxidation flow reactor to study SOA formation from wood burning,we find that IVOCs can contribute ~70 %of the formed SOA,i.e.>2 times more than VOCs.This previously missing SOA fraction is interpreted to be due to the high wall losses of semi-volatile oxidation products of IVOCs in smog chambers.The finding in this study reveals that SOA production from biomass burning is much higher than previously thought,and highlights the urgent need for more research on the IVOCs from biomass burning and potentially other emission sources. | Kun Li Jun Zhang David M.Bell Tiantian Wang Houssni Lamkaddam Tianqu Cui Lu Qi Mihnea Surdu Dongyu Wang Lin Du Imad El Haddad Jay G.Slowik Andre S.H.Prevot | 2024 | National Science Review2024，11，3： | 0 |
| 13 | Identification of Novel Bartonella washoensis Sequence Type 22 in Marmota himalayana-Jiuquan City,Gansu Province,China,2021–2022显示文摘Summary What is already known about this topic?The prevalence of rodent-adapted Bartonella species has been increasing significantly.However,the specific Bartonella species carried by Marmota himalayana(M.himalayana),a large rodent species,and the potential risk it poses to human populations remain unknown.What is added by this report?Bartonella washoensis(B.washoensis),associated with human endocarditis,was initially identified in M.himalayana,exhibiting a detection rate of approximately one-third and demonstrating a predilection for the heart and lungs.The discovery of the novel Sequence Type 22 has expanded both the isolation source and genetic lineage of B.washoensis.What are the implications for public health practice?Individuals residing within the M.himalayana plague focus are at an elevated risk for B.washoensis infection.Consequently,there is a pressing need for public health warnings and efficient clinical case identification in this population. | Ran Duan Xiaojin Zheng Qun Duan Asaiti Bukai Peng Zhang Shuai Qin Xinmin Lu Dongyue Lyu Haonan Han Dan Zhang Zhaokai He Junrong Liang Deming Tang Jinxiao Xi Huaiqi Jing Xin Wang | 2023 | China CDC weekly2023，5，20： | 0 |
| 14 | Regulating energy storage performances of 0.85NaNbO_(3)-0.15Bi(Zn_(2/3)Nb_(1/3))O_(3) ceramics using BaTiO_(3)显示文摘Recently,NaNbO_(3)-based ceramics with excellent energy storage performances(ESPs)and fast chargedischarge characteristics have attracted great attention.In this case,BaTiO_(3) modified 0.85NaNbO_(3)-0.15Bi(Zn_(2/3)Nb_(1/3))O_(3)(0.85NN-0.15BZN-yBT)ceramics were designed and successfully fabricated using solid state synthesis.The discharge storage density of the ceramics increases from 1.22 J/cm^(3) at y=0-1.84 J/cm^(3) at y=8%,which is 1.5 times higher than pure 0.85NN-0.15BZN ceramics.This ceramic reveals excellent temperature stability up to 150℃,good discharge cycling after 10^(5) cycles and high discharge speed of 2.0μs,broadening the scope of NaNbO_(3)-based ceramics for energy storage applications. | Dongyu Lai Zhonghua Yao Wei You Biao Gao Qinghu Guo Ping Lu Amjad Ullah Hua Hao Minghe Cao Hanxing Liu | 2022 | Journal of Materiomics2022，8，1： | 0 |
| 15 | Facile synthesis of azobenzene-embedded conjugated macrocycles for optically switchable single-crystal transistors and tunable supramolecular assemblies显示文摘A series of newπ-conjugated macrocycles(AzoM-n-E,n 1–3)incorporating=azobenzene units have been synthesized by a facile strategy in one-pot reaction.The resultant azobenzene-embedded macrocycles feature intrinsic photoresponsive behaviors and intriguing supramolecular assembling properties.The smallest macro-cycle AzoM-1-E with a rigid planar conjugated backbone structure is used to prepare the single crystal transistors,showing reversible optical tunability.The moderate size macrocycle AzoM-2-E assembles into a dimer in the form of interpenetration throughπ-πstacking between azobenzene units.The largest macrocycle AzoM-3-E with enhancedflexibility can adaptively assemble with various types of electron-deficient guests accompanied by distortion of azobenzene.Typically,AzoM-3-E assembles with the planar F4-TCNQ to form a tetragonal geometry by C-F⋅⋅⋅π and π-π interactions,while the assembly with ellipsoidal C70 viaπ-πinteractions induces AzoM-3-E to form a boat-shaped geometry.This work will shed new light on the development of functional conjugated macrocycles in organic electronics. | Dongdong Chang Xuetao Xiao Dongyue An Rong Zhang Xianyu Song Yunqi Liu Yan Zhao Xuefeng Lu | 2023 | Aggregate2023，4，6： | 0 |
| 16 | Stable Diarylamine-Substituted Tris(2,4,6-trichlorophenyl)methyl Radicals: One-Step Synthesis, Near-Infrared Emission, and Redox Chemistry显示文摘A mild one-step radical-to-radical synthetic strategy has been developed to directly produce a new family of diarylamine-substituted tris(2,4,6-trichlorophenyl)methyl(TTM)radicals TTM-DPA,TTM-DBPA,and TTM-DFA.The obtained TTM radical derivatives are extremely stable during chromatography purification and long-term storage in the solid state. | Chuan Yan Dongyue An Weinan Chen Ning Zhang Yanjun Qiao Jing Fang Xuefeng Lu Gang Zhou Yunqi Liu | 2022 | CCS Chemistry2022，4，9： | 0 |
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