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| 1 | Performance analysis of ghost imaging lidar in background light environment显示文摘The effect of background light on the imaging quality of three typical ghost imaging(GI) lidar systems(namely narrow pulsed GI lidar, heterodyne GI lidar, and pulse-compression GI lidar via coherent detection) is investigated. By computing the signal-to-noise ratio(SNR) of fluctuation-correlation GI, our analytical results, which are backed up by numerical simulations, demonstrate that pulse-compression GI lidar via coherent detection has the strongest capacity against background light, whereas the reconstruction quality of narrow pulsed GI lidar is the most vulnerable to background light. The relationship between the peak SNR of the reconstruction image andσ(namely, the signal power to background power ratio) for the three GI lidar systems is also presented, and theresults accord with the curve of SNR-σ. | CHENJIN DENG LONG PAN CHENGLONG WANG XIN GAO WENLIN GONG SHENSHENG HAN | 2017 | Photonics Research2017，5，5： | 13 |
| 2 | Generation of super-resolved optical needle and multifocal array using graphene oxide metalenses显示文摘Ultrathin flat metalenses have emerged as promising alternatives to conventional diffractive lenses,offering new possibilities for myriads of miniaturization and interfacial applications.Graphene-based materials can achieve both phase and amplitude modulations simultaneously at a single position due to the modification of the complex refractive index and thickness by laser conversion from graphene oxide into graphene like materials.In this work,we develop graphene oxide metalenses to precisely control phase and amplitude modulations and to achieve a holistic and systematic lens design based on a graphene-based material system.We experimentally validate our strategies via demonstrations of two graphene oxide metalenses:one with an ultra-long(~16λ)optical needle,and the other with axial multifocal spots,at the wavelength of 632.8 nm with a 200 nm thin film.Our proposed graphene oxide metalenses unfold unprecedented opportunities for accurately designing graphene-based ultrathin integratable devices for broad applications. | Hongtao Wang Chenglong Hao Han Lin Yongtian Wang Tian Lan Chengwei Qiu Baohua Jia | 2021 | Opto-Electronic Advances2021，4，2： | 10 |
| 3 | Far-field super-resolution ghost imaging with a deep neural network constraint显示文摘Ghost imaging(GI)facilitates image acquisition under low-light conditions by single-pixel measurements and thus has great potential in applications in various fields ranging from biomedical imaging to remote sensing.However,GI usually requires a large amount of single-pixel samplings in order to reconstruct a high-resolution image,imposing a practical limit for its applications.Here we propose a far-field super-resolution GI technique that incorporates the physical model for GI image formation into a deep neural network.The resulting hybrid neural network does not need to pre-train on any dataset,and allows the reconstruction of a far-field image with the resolution beyond the diffraction limit.Furthermore,the physical model imposes a constraint to the network output,making it effectively interpretable.We experimentally demonstrate the proposed GI technique by imaging a flying drone,and show that it outperforms some other widespread GI techniques in terms of both spatial resolution and sampling ratio.We believe that this study provides a new framework for GI,and paves a way for its practical applications. | Fei Wang Chenglong Wang Mingliang Chen Wenlin Gong Yu Zhang Shensheng Han Guohai Situ | 2022 | Light(Science & Applications)2022，11，1： | 6 |
| 4 | A numerical and experimental study of a dual-function solar collector integrated with building in passive space heating mode显示文摘A newly designed solar collector named dual-function solar collector is proposed.The dual-function solar collector integrated with building can perform in two different modes:working as a passive space heating collector in cold sunny days such as in winter,or working as a facade water heating collector in hot days such as in summer.An experimental study has been carried out to investigate the performance of the novel system in space heating mode,whilst,the dynamic numerical model has been established and validated.The experimental and numerical results show that during the period of the measurement from 9:00 to 17:00,the mean indoor temperature was up to 24.7°C while the mean ambient temperature was only 4.8°C,and a temperature stratification was present in the room.Moreover,a numerical study on the effect of optical property of coatings has been carried out. | JI Jie LUO ChengLong SUN Wei HE Wei PEI Gang HAN ChongWei | 2010 | Chinese Science Bulletin2010，55，15： | 5 |
| 5 | Anisotropic corrosion resistance of TiC reinforced Ni-based composites fabricated by selective laser melting显示文摘Electrochemical measurements on three planes of TiC/Inconel 718 composites fabricated by selective laser melting(SLM) were performed to study the corrosion property. The results showed that the YZplane with dense and fine columnar structures possessed high microhardness and superior corrosion resistance in 3.5 wt% NaCl solution. For the XZ-plane, a decreased anti-corrosion property was observed owing to its inhomogeneous microstructures. While the XY-plane with large irregular pores and clustered ring-like structures was more susceptible to corrosion compared with the other two planes. Comparative analysis suggested that the anisotropic corrosion behaviors were significantly dependent on the surface defects, microstructure characteristics and added reinforcements. | Hongmei Zhang Dongdong Gu Lixia Xi Han Zhang Mujian Xia Chenglong Ma | 2019 | Journal of Materials Science & Technology2019，35，6： | 4 |
| 6 | 乌司奴单抗改善中、重度斑块状银屑病患者健康相关生活质量和临床疗效观察显示文摘目的:评估乌司奴单抗对中国3期、双盲、安慰剂对照临床(LOTUS)研究患者健康相关生活质量(HRQoL)的影响。方法:共322例患者,在第0周和第4周随机接受乌司奴单抗45mg(n=160)或安慰剂(n=162);第12周和第16周安慰剂组交叉使用乌司奴单抗,而乌司奴单抗组则在第16周继续使用乌司奴单抗。第12周HRQoL终点包括皮肤病生活质量指数(DLQI)评分较基线的变化、单个DLQI域的变化、DLQI评分为0分或1分的患者比例以及获得有临床意义DLQI改善(评分降低≥5分)的患者比例。结果:乌司奴单抗治疗患者12周时DLQI评分较基线的改善(-9.3分)显著优于安慰剂组(-1.9分)(P<0.001)。同样,乌司奴单抗治疗后DLQI≤1分的患者比例显著高于安慰剂组(42.6%vs 10.7%,P<0.001),乌司奴单抗组和安慰剂组治疗后分别有71.5%和29.6%的患者DLQI降低≥5分(P均<0.001)。乌司奴单抗治疗患者12周时单个DLQI域与安慰剂相比显著改善(P<0.001)。乌司奴单抗组DLQI的改善在治疗28周内持续存在。交叉接受乌司奴单抗的安慰剂组患者,与最初随机接受乌司奴单抗治疗的患者相比,HRQoL改善程度类似。结论:乌司奴单抗显著改善了中国中至重度斑块状银屑病患者的HRQoL。 | 朱学骏 郑敏 Michael Song Chenglong Han Daphne Chan Y.K.Shen 王宝玺 | 2014 | 临床皮肤科杂志2014，43，9： | 4 |
| 7 | An insight into failure mechanism of NASICON-structured Na3V2(PO4)3 in hybrid aqueous rechargeable battery显示文摘NASICON (Na-super-ionic-conductors)-structured materials have attracted extensive research interest due to their great application potential in secondary batteries. However, the mechanism of capacity fading for NASICON-structured electrode materials has been rarely studied. In this paper, we synthesized the NASICON-structured Na3V2(PO4)3/C composite by simple sol-gel and high-temperature solid-phase method and investigated its electrochemical performance in Na-Zn hybrid aqueous rechargeable batteries. After characterizing the structure, morphology and composition variations as well as the interfacial resistance changes of Na3V2(PO4)3/C cathode during cycling, we propose a mechanical and interfacial degradation mechanism for capacity fading of NASICON-structured Na3V2(PO4)3/C in Na-Zn hybrid aqueous rechargeable batteries. This work will shed light on enhancing the mechanical and in terfacial stability of NASICON-structured Na3V2(PO4)3/C in Na-Zn hybrid aqueous rechargeable batteries. | Xinxin Zhang Jun Ma Pu Hu Bingbing Chen Chenglong Lu Xinhong Zhou Pengxian Han Lihua Chen Guanglei Cui | 2019 | Journal of Energy Chemistry2019，28，5： | 3 |
| 8 | Colour compound lenses for a portable fluorescence microscope显示文摘In this article,we demonstrated a handheld smartphone fluorescence microscope(HSFM)that integrates dualfunctional polymer lenses with a smartphone.The HSFM consists of a smartphone,a field-portable illumination source,and a dual-functional polymer lens that performs both optical imaging and filtering.Therefore,compared with the existing smartphone fluorescence microscope,the HSFM does not need any additional optical filters.Although fluorescence imaging has traditionally played an indispensable role in biomedical and clinical applications due to its high specificity and sensitivity for detecting cells,proteins,DNAs/RNAs,etc.,the bulky elements of conventional fluorescence microscopes make them inconvenient for use in point-of-care diagnosis.The HSFM demonstrated in this article solves this problem by providing a multifunctional,miniature,small-form-factor fluorescence module.This multifunctional fluorescence module can be seamlessly attached to any smartphone camera for both bright-field and fluorescence imaging at cellular-scale resolutions without the use of additional bulky lenses/filters;in fact,the HSFM achieves magnification and light filtration using a single lens.Cell and tissue observation,cell counting,plasmid transfection evaluation,and superoxide production analysis were performed using this device.Notably,this lens system has the unique capability of functioning with numerous smartphones,irrespective of the smartphone model and the camera technology housed within each device.As such,this HSFM has the potential to pave the way for realtime point-of-care diagnosis and opens up countless possibilities for personalized medicine. | Bo Dai Ziao Jiao Lulu Zheng Hunter Bachman Yongfeng Fu Xinjun Wan Yule Zhang Yu Huang Xiaodian Han Chenglong Zhao Tony Jun Huang Songlin Zhuang Dawei Zhang | 2019 | Light(Science & Applications)2019，8，1： | 3 |
| 9 | Overview of the Solar Polar Orbit Telescope Project for Space Weather Mission显示文摘The Solar Polar ORbit Telescope(SPORT) project for space weather mission has been under intensive scientific and engineering background studies since it was incorporated into the Chinese Space Science Strategic Pioneer Project in 2011.SPORT is designed to carry a suite of remote-sensing and in-situ instruments to observe Coronal Mass Ejections(CMEs),energetic particles,solar high-latitude magnetism,and the fast solar wind from a polar orbit around the Sun.The first extended view of the polar regions of the Sun and the ecliptic enabled by SPORT will provide a unique opportunity to study CME propagation through the inner heliosphere,and the solar high-latitude magnetism giving rise to eruptions and the fast solar wind.Coordinated observations between SPORT and other spaceborne/ground-based facilities within the International Living With a Star(ILWS) framework can significantly enhance scientific output.SPORT is now competing for official selection and implementation during China's 13 th Five-Year Plan period of 2016-2020. | XIONG Ming LIU Ying LIU Hao LI Baoquan ZHENG Jianhua ZHANG Cheng XIA Lidong ZHANG Hongxin RAO Wei CHEN Changya SUN Weiying WU Xia DENG Yuanyong HE Han JIANG Bo WANG Yuming WANG Chuanbing SHEN Chenglong ZHANG Haiying ZHANG Shenyi YANG Xuan SANG Peng WU Ji | 2016 | 空间科学学报2016，36，3： | 3 |
| 10 | Single-pixel imaging using physics enhanced deep learning显示文摘Single-pixel imaging(SPI) is a typical computational imaging modality that allows two-and three-dimensional image reconstruction from a one-dimensional bucket signal acquired under structured illumination.It is in particular of interest for imaging under low light conditions and in spectral regions where good cameras are unavailable.However,the resolution of the reconstructed image in SPI is strongly dependent on the number of measurements in the temporal domain.Data-driven deep learning has been proposed for high-quality image reconstruction from a undersampled bucket signal.But the generalization issue prohibits its practical application.Here we propose a physics-enhanced deep learning approach for SPI.By blending a physics-informed layer and a model-driven fine-tuning process,we show that the proposed approach is generalizable for image reconstruction.We implement the proposed method in an in-house SPI system and an outdoor single-pixel LiDAR system,and demonstrate that it outperforms some other widespread SPI algorithms in terms of both robustness and fidelity.The proposed method establishes a bridge between data-driven and model-driven algorithms,allowing one to impose both data and physics priors for inverse problem solvers in computational imaging,ranging from remote sensing to microscopy. | FEI WANG CHENGLONG WANG CHENJIN DENG SHENSHENG HAN GUOHAI SITU | 2022 | Photonics Research2022，10，1： | 2 |
| 11 | Zircon U–Pb Ages and Lu–Hf Isotope of the Dongchuan Group in Central Yunnan, China, and their Geological Significance显示文摘On the southwestern margin of the Yangtze Block, the Dongchuan Group consists of slightly metamorphosed sedimentary rocks, including silty slate, argillaceous slate, clayey slate, arkose, dolomite, and minor volcanic rocks. To date, it is still a controversy over the depositional age and stratigraphic sequence of the Dongchuan Group. In this study, we analyzed five samples of meta-sedimentary rocks and one sample of meta-tuff from the Yinmin, Luoxue and Etouchang Formations of the Dongchuan Group in the Yuxi region for detrital zircon U-Pb ages and Lu-Hf isotope. The detrital zircon ages of the meta-sediments vary from 3073 to 1703 Ma, mainly clustered at three periods, from 1889 to 1840, 2490 to 2008 and 2878 to 2844 Ma. The youngest age peak of all the samples is ~1859 Ma, with the εHf(t) values of the zircons ranging from-20.3 to +4.3 and more than 90% being negative, indicating that the Paleoproterozoic crustal accretion on the southwestern margin of the Yangtze Block was dominated by reworking of the ancient crustal materials involved in the assembly and breakup of the Columbia supercontinent. Another important age range is between 2490 Ma and 2008 Ma, with εHf(t) values from-14.7 to +8.9 and 70% of them are negative, suggesting that the magmatism in the source area was also dominated by reworking and recycling of the ancient crustal materials, with minor juvenile mantle substances added. The detritus was probably derived from the Paleoproterozoic crystalline basement in the southern Yuxi region. The oldest peak age is ~2847 Ma and the εHf(t) values are from-7.7 to +7.0 with 50% of both positive and negative values, demonstrating a possible ~2.85 Ga ancient continental nucleus on the southwestern margin of the Yangtze Block and substantial growth in juvenile crust materials during this period. Besides, the weighted average age of the zircons from the meta-tuff of the Etouchang Formation is 1677 ± 14 Ma. Combining the previous research data and this study, we can constrain the depositional age of the Dongchuan Group in central Yunnan Province to the period from the late Paleoproterozoic to early Mesoproterozoic, slightly earlier than that of the Dongchuan Group in the Dongchuan area near to the southwestern Sichuan Province. The depositional age of the Dongchuan Group is older than that of the Kunyang Group. | HAN Kunying ZHANG Heng DING Xiaozhong REN Liudong SHI Chenglong PANG Jianfeng | 2020 | Acta Geologica Sinica(English Edition)2020，94，4： | 1 |
| 12 | Study on the Effect of Two-Step Saturated Steam Heat Treatment Process on the Properties of Reconstituted Bamboo显示文摘With the aim of utilizing reconstituted bamboo as a carbon cycle oriented material,the improvement of physical and mechanical properties has been actively studied to solve using problems The saturated steam heat treatment process has been widely used in worldwide.With the development and exploration of this technology,two step satu-rated steam heat treatment process appears in some practical production,that is,affer a period of saturated steam heat treatment at a lower temperature,the bamboo bundles are taken out and seasoned for a period of time,and then put back into the heat tank again,and heated at a higher temperature for another period of time.During the two-step saturated steam heat treatment,the physical and mechanical properties of bamboo changed.However,the mechanism of two step saturated steam heat treatment has not been thoroughly discussed.For purpose that this paper all discuss and find out the mechanism of two step saturated steam heat treatment on the change of physical and mechanical properties of reconstituted bamboo.In this work,the one and two step saturated steam heat treat-ments were carried out according to the actual production parameters,and the physical and mechanical properties of the reconstituted bamboo board made of treated bamboo bundles were analyzed,including the color change,the thickness swelling(TS),modulus of elasticity(MOE),modulus of rupture(MOR)and shear strength.The results indicate that two-step saturated steam heat treatment is better than one step.Based on the detailed study of the chemical composition,crytalinity and micro morphologial characteristics of the heated bamboo bundles,it is further revealed that during two-step saturated steam heat treatment,oxygen air is added to the reaction system between the two heat treatment processes to further catalyze the oxidation of hemicellulose and enhance the crystal-linity of cellulose,so as to improve the properties of the final products.Our work has optimized the saturated steam heat treatment process which is widely used in industry,pointing out a new idea in the experimental and theoretical basis for the development of recombinant bamboo manufacturing industry. | Xin Han Zhichao Lou Chenglong Yuan Xinwu Wu Jie Liu Fujin Weng Yanjun Li | 2022 | Journal of Renewable Materials2022，10，12： | 1 |
| 13 | Thermodynamics of Molten Pool Predicted by Computational Fluid Dynamics in Selective Laser Melting of Ti6Al4V:Surface Morphology Evolution and Densification Behavior显示文摘The three-dimensional physical model of the randomly packed powder material irradiated by the laser beam was established,taking into account the transformation of the material phase,the melt spreading and the interaction of the free surface of the molten pool and the recoiling pressure caused by the material evaporation during the selective laser melting.Influence of the processing parameters on the thermal behavior,the material evaporation,the surface morphology and the densification behavior in the connection region of the molten pool and the substrate was studied.It was shown that the powder material underwent the transformation from the partial melting state to the complete melting state and finally to the overheating state with the applied laser energy density increasing from 167 J/mm^(3) to 417 J/mm^(3).Therefore,the solidified track ranged from the discontinuous tracks with the rough surface to the continuous tracks with residual porosities,then to the continuous and dense tracks and terminally to the fluctuated tracks with the increase in the laser energy density.Meanwhile,the laser energy effect depth was maintained the positive relationship with the laser energy density.The vortex velocity obtained in the free surface of the molten pool towards to the rear region in the opposite laser scan direction promoted the melt convection to the edge region of the molten pool as the laser energy density was higher than 277 J/mm^(3),demonstrating the efficient energy dissipation from the center of the irradiation region to the whole part of the molten pool and the attendant production of the sufficient melt volume.Therefore,the efficient spreading of the molten pool and the metallurgical bonding ability of the melt with the substrate was obtained at the optimized laser energy density of 277 J/mm^(3).However,the severe material evaporation would take place as the melt was overheated,resulting in the formation of the residual pores and poor surface quality. | Donghua Dai Dongdong Gu Qing Ge Chenglong Ma Xinyu Shi Han Zhang | 2020 | Computer Modeling in Engineering & Sciences2020，，9： | 1 |
| 14 | Osteogenic evaluation of calcium/magnesium-doped mesoporous silica scaffold with incorporation of rhBMP-2 by synchrotron radiation-based μCT显示文摘 | Chenglong Dai Han Guo Jingxiong Lu Jianlin Shi Jie Wei Changsheng Liu | 2011 | Biomaterials2011，，33： | 1 |
| 15 | Osteogenic evaluation of calcium/magnesium- doped mesoporous silica scaffold with incorporation of rhBMP-2 by synchrotron radiation- based μCT显示文摘 | Dai Chenglong Guo Han Lu Jingxiong | 2011 | Biomaterials2011，32，33： | 1 |
| 16 | Artificial intelligence optimization and controllable slow-release iron sulfide realizes efficient separation of copper and arsenic in strongly acidic wastewater显示文摘Iron sulfide(FeS)is a promising material for separating copper and arsenic from strongly acidic wastewater due to its S^(2-)slow-release effect.However,uncertainties arise because of the constant changes in wastewater composition,affecting the selection of operating parameters and FeS types.In this study,the aging method was first used to prepare various controllable FeS nanoparticles to weaken the arsenic removal ability without affecting the copper removal.Orthogonal experiments were conducted,and the results identified the Cu/As ratio,H_(2)SO_(4) concentration,and FeS dosage as the three main factors influencing the separation efficiency.The backpropagation artificial neural network(BP-ANN)model was established to determine the relationship between the influencing factors and the separation efficiency.The correlation coefficient(R)of overall model was 0.9923 after optimizing using genetic algorithm(GA).The BP-GA model was also solved using GA under specific constraints,predicting the best solution for the separation process in real-time.The predicted results show that the high temperature and long aging time of FeS were necessary to gain high separation efficiency,and the maximum separation factor can reached 1,400.This study provides a suitable sulfurizing material and a set of methods and models with robust flexibility that can successfully predict the separation efficiency of copper and arsenic from highly acidic environments. | Xingfei Zhang Chenglong Lu Jia Tian Liqiang Zeng Yufeng Wang Wei Sun Haisheng Han Jianhua Kang | 2024 | Journal of Environmental Sciences2024，，5： | 0 |
| 17 | Analysis of Microstructure of Reactor Pressure Vessel Steel due to Thermal Aging Effect by Small-angle Neutron Scattering显示文摘Reactor pressure vessels are of great importance for nuclear power safety and play an extremely important role in the safe operation of reactors and in preventing nuclear leakage.As material microstructure probe,neutrons have the advantages of high penetrability,ability to distinguish between adjacent nuclide and sensitivity to magnetism.The small-angle neutron scattering can accurately obtain the size distribution,volume fraction and composition of the defects of the nanosized copper clusters in the pressure vessel steel matrix,revealing the microstructure mechanism of the macroscopic mechanical properties.The thermal aging supervision samples from a nuclear power plant in China had been analyzed by small-angle neutron scattering. | LI Bonan WANG Zijun LIU Rongdeng HAN Songbai SUN Kai CHEN Dongfeng LIU Yuntao WANG Chenglong TONG Zhenfeng LI Tianfu | 2018 | 中国原子能科学研究院年报2018，，1： | 0 |
| 18 | In situ wound sprayable double-network hydrogel: Preparation and characterization显示文摘In clinical settings the wound-dressing was required easy to use and can match the wound area immediately, at the same time they need to have the properties of hemostats, anti-inflammation and promoting wound healing. To get an ideal wound dressing, we developed a type of gel-like wound adhesive patch from spraying double-network hydrogel, which own the properties of self-antibacterial and can promote wound healing. By spraying, the gel-like wound adhesive patch can match the wound area immediately and form a gel-film in 10 s. Sodium carboxymethyl cellulose as p H sensitive materials accelerated the speed to form the gel-film and enhanced ductility of the wound adhesive patch. In vitro experiments show that, this gel-like wound adhesive patch can promote cell proliferation and reduce cell apoptosis.In vivo studies show that, compared with commercialized wound dressings in clinic using, the spraying gel-like wound adhesive patch from our work has a better effect on wound healing. In conclusion, the spraying gel-like wound patch in our work is easy to use and can form a gel-film match on wound area in a short time, also it has the properties of hemostats, anti-inflammation and promoting wound healing.Its feasibility for mass production shows a good potential for commercial use. | Chenglong Cai Ting Wang Xu Han Shaoqiang Yang Chengteng Lai Tao Yuan Zhangqi Feng Nongyue He | 2022 | Chinese Chemical Letters2022，33，4： | 0 |
| 19 | A novel on-tissue cycloaddition reagent for mass spectrometry imaging of lipid C=C position isomers in biological tissues显示文摘Application of matrix-assisted laser desorption/ionization mass spectrometry imaging(MALDI-MSI) to investigate the spatiotemporal alterations of lipids in biological tissues has brought many significant results.However, the presence of structural isomers varying in C=C double bond(DB) locations makes isomerresolved MSI an urgent need. Herein, we introduce a new type of light-driven on-tissue [2 + 2] cycloaddition reaction coupled with MALDI-MS/MS imaging to identify lipid DB position isomers and their spatial signatures in biological tissues. 3-Benzoylpyridine was introduced as a novel derivatization reagent, and it exhibited great reactivity toward lipid C=C bond to form oxetanes under both ultraviolet light and visible light irradiation. With this approach, DB position isomers of lipids were imaged with highly differential levels in distinct regions of rat brain, providing an accurate and spatially resolved approach to study tissue lipidomics. | Chenglong Sun Chunxia Ma Lili Li Yuhao Han Daijie Wang Xiao Wan | 2022 | Chinese Chemical Letters2022，33，4： | 0 |
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