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| 1 | Hard X-ray diffraction enhanced imaging only using two crystals显示文摘Different configurations for the monochroma-tor crystals and the analyzer crystals have been used in hard X-ray diffraction enhanced imaging (DEI) methods to over-come the complex task to adjust each of them to the ideal position. Here we present a very compact DEI configuration, and preliminary results of experiments performed at the Beijing Synchrotron Radiation Facility (BSRF) using only two crystals: the first one acting as monochromator and the second one as analyzer in the Bragg geometry. Refraction contrast images characterized by high contrast and spatial resolution are obtained and compared with absorption im-ages. Differences among these images will be outlined and discussed emphasizing the potential capabilities of this very simple layout that guarantees a high transmission efficiency. | LIGang WANGNan WUZiyu | 2004 | Chinese Science Bulletin2004，49，20： | 3 |
| 2 | 显示文摘 | WANGNan DONGZai-zheng XUShu-kun etal(王楠 董再蒸 徐淑坤) | | 分析化学0，，： | 1 |
| 3 | Rapid solidification mecha-nism of Ag_(60)Sb_(34)Cu_(6) ternaryalloy in drop tube显示文摘Droplets of Ag60Sb34Cu6 ternary alloy within the diameter range of 60—800 μm were rapidly solidified by means of drop tube containerless processing, and the solidi- fication mechanism is analyzed. With a decrease in droplet size, the cooling rate increases from 57 to 5.8×104 K/s. The maximum undercooling is determined to be 180 K (0.23TL) and the microstructure of primary ε(Ag3Sb) dendrite refines drastically until homogenous equiaxed dendrite forms. Ex- perimental results indicate that (ε+Ag) pseudobinary eutectic cannot form under high undercooling conditions and the solubility of Ag in primary ε phase increases as undercooling increases. Based on thermal analysis and crystal growth morphology, it is found that this alloy is solidified in two ways corresponding to different undercooling levels. | RUANYing WANGNan CAOChongde WEIBingbo | 2004 | Chinese Science Bulletin2004，49，17： | 1 |
| 4 | EffectofporosityoncarbonationandhydrationresistanceofCaOmaterials显示文摘 | ChenMin WangNan YuJingkun | 2007 | JEurCeram Soc2007，27，： | 1 |
| 5 | Influence of Nuclear Deformation on the Potential Energy Surface in Di—Nuclear Model显示文摘Influence of the nuclear deformation on the potential energy surface(PES) in a di-nuclear system is studied in details.It is found that the PES shape changes greatly due to the deformation effect.The top point of the PES could be reduced significantly,which implies that the optimum excitation energy could also be reduced greatly and may enhance the fromation probability of the compound nucleus.The dynamical deformaiton as a function of the reaction time in the reaction process is dramatic.The Z/N ratios of fragments tend to follow that of the compound nucleus during the nucleon exchange process,but to fluctuate. | WANGNan ZHAOEn-Guang LIJian-Feng LIWen-Fei XUHu-Shan ZUOWei LIJun-Qing | 2003 | Chinese Physics Letters2003，20，5： | 1 |
| 6 | General deep learning framework for emissivity engineering显示文摘Wavelength-selective thermal emitters(WS-TEs)have been frequently designed to achieve desired target emissivity spectra,as a typical emissivity engineering,for broad applications such as thermal camouflage,radiative cooling,and gas sensing,etc.However,previous designs require prior knowledge of materials or structures for different applications and the designed WS-TEs usually vary from applications to applications in terms of materials and structures,thus lacking of a general design framework for emissivity engineering across different applications.Moreover,previous designs fail to tackle the simultaneous design of both materials and structures,as they either fix materials to design structures or fix structures to select suitable materials.Herein,we employ the deep Q-learning network algorithm,a reinforcement learning method based on deep learning framework,to design multilayer WS-TEs.To demonstrate the general validity,three WS-TEs are designed for various applications,including thermal camouflage,radiative cooling and gas sensing,which are then fabricated and measured.The merits of the deep Q-learning algorithm include that it can(1)offer a general design framework for WS-TEs beyond one-dimensional multilayer structures;(2)autonomously select suitable materials from a self-built material library and(3)autonomously optimize structural parameters for the target emissivity spectra.The present framework is demonstrated to be feasible and efficient in designing WS-TEs across different applications,and the design parameters are highly scalable in materials,structures,dimensions,and the target functions,offering a general framework for emissivity engineering and paving the way for efficient design of nonlinear optimization problems beyond thermal metamaterials. | Shilv Yu Peng Zhou Wang Xi Zihe Chen Yuheng Deng Xiaobing Luo Wangnan Li Junichiro Shiomi Run Hu | 2023 | Light(Science & Applications)2023，12，12： | 0 |
| 7 | Computation of Dielectric Constants and Loss Tangents at ISM Band by Measurements of Transmission Coefficients显示文摘The ISM band at 2.4? GHz has mostly been used or planned for indoor systems. This band is also attractive for outdoor systems owing to the ease of the system deployment, as no frequency licenses are required. In this paper, a multiple successive internal multireflection model is used to estimate the complex electric permittivity at 2.4? GHz band. To obtain the data, measurements are performed at 160? MHz bandwidth centered about 2.4? GHz using a vector network analyzer, which provides information about the amplitude and phase of transmission coefficient. Several samples of each material are measured and the results vary from sample to sample. It has also been found that some obstacles have polarization behaviour. | Y.E.Mohammed LIUYuan-an A.S.Abdallah WANGNan | 2003 | The Journal of China Universities of Posts and Telecommunications2003，10，2： | 0 |
| 8 | Evaporation Residue Cross-sections of Super-heavy Nuclear Production显示文摘To synthesize new superheavy nuclei a better understanding of the physics conception on the production mechanism is very important. Several theoretical models have been developed to describe the reaction dynamical mechanism. Among them Adamian et al.have investigated the reaction mechanism of the superheavy element (SHE) formation in the concept of a dinuclear system (DNS) which is proved to be a powerful tool | LiWenfei iJianfeng XuHushan ZuoWei WangNan ZhaoEnguang LiJunqing | 2002 | 近代物理研究所和兰州重离子加速器实验室年报:英文版2002，，1： | 0 |
| 9 | Optimal Excitation Energy of Superheavy Compound Nuclei Produced in Heavy Ion Fusion Reactions显示文摘So far super heavy elements are synthesized by cold fusion of heavy ions with Pb and Bi targets, or hot fusion reaction using 232Th, 238U and 242>244Pu targets. Further heavier synthesizing could be very difficult. The study of the fusion mechanism will hopefully propose optimal experimental conditions for the formation of the super heavy elements. | LiJianfeng XuHushan LiWenfei ZuoWei LiJunqing WangNan ZhaoEnguang | 2002 | 近代物理研究所和兰州重离子加速器实验室年报:英文版2002，，1： | 0 |
| 10 | Potential Energy Surface in Deformed Di-Nuclear System显示文摘In DNS model, a key point is the calculation of PES because it governs the fusion dynamics and thus determines the optimum excitation energy of the compound nucleus and the optimum bombarding energy. Furthermore, it gives the information about the optimum projectile-target combination leading to a certain super-heavy nucleus. | WangNan ZhaoEnguang LiWenfei LiJianfeng XuHushan ZuoWei LiJunqing | 2002 | 近代物理研究所和兰州重离子加速器实验室年报:英文版2002，，1： | 0 |
| 11 | Survival Probability of Super Heavy Nuclei显示文摘The survival probability of the excited compound nucleus is considered as one of the crucial factors for producing SHE. The competition between the neutron emission and the fission during the de-excitation process is the main mechanism to determine the survival probability. The form of level density formula, the level | WangNan ZhsoEnguang LiWenfei LiJianfeng XuHushan ZuoWei LiJunqing | 2002 | 近代物理研究所和兰州重离子加速器实验室年报:英文版2002，，1： | 0 |
| 12 | Aqueous Sn-S Complex Derived Electron Selective Layer for Perovskite Solar Cells显示文摘A novel aqueous Sn-S complex solution was applied as precursor to fabricate SnO2 electron selective layers (ESLs) for the hybrid perovskite solar cells (PSCs).The tin and sulfur powder were directly dissolved in a (NH4)2S water solution to form Sn-S precursor.After depositon and annealing,the SnO2 film was formed,presenting as a low cost and enviromental friendly method for preparation of ESL.The films showed excellent transmittance at visible wavelength range.Moreover,the method exhibited high compatibility for doping using Cu,Cd,Li,and Zn elements.Zn doping (0.05 M) in the as-prepared SnO2 ESL significantly improved perovskite solar cells (PSCs) performance.The highest PCE of 13.17% was achived with 15% enhancement compared to that of undoped SnO2 ESL samples.TiCl4 modifications on SnO2 film improved photovoltaic performance to 14.45%,but resulted in the poor long-term stability,around 80% more degredation than that of PSCs based on Zn-doped SnO2 films. | LI Zhi SHEN Wenjian ZHAO Juan YING Hangkai WU Zhengli LIU Yifan LI Wangnan KU Zhiliang PENG Yong HUANG Fuzhi CHENG Yibing ZHONG Jie FU Zhengyi | 2020 | Journal of Wuhan University of Technology(Materials Science)2020，35，2： | 0 |
| 13 | Study of Survival Probability of Super Heavy Nuclei显示文摘The survival probability of super heavy nuclei produced in cold fusion reactions is studied by using the standard Fermi gas level density formula and analyzed with fission and neutron evaporation characteristics predicted in different theoretical models. The level density formula used in this letter suppresses the ratio of neutron emission width to fission width, Гn/Гf. The dependence of Гn/Гf on the saddle point level density parameter and excitation energy is also investigated. | WANGNan ZHAOEn-Guang LIWen-Fei LIJian-Feng XUHu-Shan ZUOWei LIJun-Qing | 2003 | Communications in Theoretical Physics2003，40，2X： | 0 |
| 14 | Heart of China's Textiles显示文摘THE textile industry is a tradition in Shaoxing.Early in the Tang Dynasty, Shaoxing silks were known throughout the country. Shaoxing is considered the heart of China's textile industry. Having long been Shaoxing's pillar industry, textiles have secured Shaoxing's number one place in the Zhejiang economy for 20 years. | WUXINYI WANGNAN | 2004 | China Today2004，53，4： | 0 |
| 15 | Booming Ranufacturing industry显示文摘SHAOXING, with its 80,000 manufacturing enterprises, is well known in the Yangtze River Delta area for its strong manufacturing capacity.Township enterprises laid the foundation for industrial development two decades ago, but the disadvantages of small rural enterprises, like low production capacity and quality and low standards of technology,soon emerged. In order to advance industrial development, in the late 1990s the Shaoxing municipal government decided to build the Township Industrial Zone. In the following five years, several industrial parks opened in Shaoxing. | WUXINYI WANGNAN | 2004 | China Today2004，53，4： | 0 |
| 16 | Neutron Stars in the Model of Non—linear Realization of SU(2) Chiral Symmetry Spontaneous Breaking显示文摘The properties of neutron stars are studied in a relativistic mean-field model with SU(2) chiral symmetry spontaneous breaking being considered. The calculation results indicate that the effects of the chiral symmetry spontaneous breaking are not negligible. | WANGNan SUNBao-Xi LUEXiao-Fu ZHAOEn-Guang | 2003 | Communications in Theoretical Physics2003，39，5： | 0 |
| 17 | Helping Learners Become Independent Listeners-Teaching Listening to English Majors through Learner-centered Approach显示文摘A traditional and typical listening course at college level can be described in terms of three steps: press button-check answers- repress button. It has been believed that the teaching of listening comprehension centers on what teachers do, that is, the actions and behaviors which teachers carry out in classroom are given prominence. Students. are seen as | WangNan LiYan QianXiaofang | 2004 | 中国英语教学:英文版2004，27，3： | 0 |
| 18 | Droplet Undercooling During Containerless Processing in a Drop Tube显示文摘The droplet undercooling prior to crystallization during containerless processing in a drop tube is calculated onthe basis of nucleation theory and processing parameters. The influences of droplet size, wetting angle, and coolingrate on undercooling are also evaluated under the situation of heterogeneous nucleation. An experimental studyof containerless solidification is performed on Ag28.1 Cu41.4 Ge30.5 ternary alloy in comparison with the theoreticalanalysis. It is revealed that, in the case of heterogeneous catalysis, the droplet size is only an ostensible parameterto influence undercooling, whereas the wetting angle is the essentially dominating factor. The different coolingrates in such a case also have an effect on droplet undercooling, but this effect is not significant. The calculatedresults will agree well with the experimental data if the inverse relationship between wetting angle and dropletsize is given. | WANGNan WEIBing-Bo | 2004 | Chinese Physics Letters2004，21，6： | 0 |
| 19 | Manipulating hot carrier cooling in silicon phononic crystals opens new application opportunities显示文摘Phononic crystals(PnCs)have had a multiple of important and promising applications such as sonic diodes,acoustic cloaking,optomechanic,and thermoelectrics[1–5].Undoubtably,it is of significance to explore new findings for PnCs,which can open new application opportunities. | Peng Zhou Shaojuan Lu Wangnan Li Shulai Lei | 2023 | Chinese Chemical Letters2023，34，9： | 0 |
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