韩炜
个性化签名
- 姓名:韩炜
- 目前身份:
- 担任导师情况:
- 学位:
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学术头衔:
博士生导师
- 职称:-
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学科领域:
原子分子物理学
- 研究兴趣:
韩炜,男,1968年生,汉族,中共党员。1989年毕业于吉林大学物理系,被保送到吉林大学材料科学研究所攻读硕士学位,保留学籍两年,留物理系团委工作,曾任物理系团委书记。1993年6月获得硕士学位,留材料科学系任教。1993年11月经国家教委批准被派往俄罗斯托木斯克理工大学学习。97年4月获得博士学位后回校工作。1998年1月,到吉林大学超硬材料国家重点实验室做在职博士后。1998年9月并被聘为副教授。2000年底博士后出站后回物理学院工作。2001年9月被聘为教授,享受2级岗位津贴。2003年底被评为博士生导师。2004年至今任物理学院副院长,2000年、2003年和2005年受国家留学基金委资助分别到俄罗斯、乌克兰高访三个月。先后参加和主持国家863、教育部、吉林省科技厅、企业横向联合项目20余项,2001年至今累计获得各类资助700余万元。发表论文30余篇,申报和获得发明专利、实用新型专利20项,指导硕士研究生38人(其中22人已获得学位),指导博士研究生8人(3人已获得学位)。是吉林大学精品课程、吉林省精品课程、国家级精品课程《近代物理实验》负责人。
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1450
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479
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成果数
10
韩炜, LV Wei-Guo**, CHU Zhao-Tan, ZHAO Xiao-Qing, , FAN Yu-Xiu, SONG Ruo-Long, HAN Wei***
CHIN. PHYS. LETT. Vol. 26, No. 1 (2009) 014102,-0001,():
-1年11月30日
The vector finite element method of tetrahedral elements is used to model 3D electromagnetic wave logging response. The tangential component of the vector field at the mesh edges is used as a degree of freedom to overcome the shortcomings of node-based finite element methods. The algorithm can simulate inhomogeneous media with arbitrary distribution of conductivity and magnetic permeability. The electromagnetic response of well logging tools are studied in dipping bed layers with the borehole and invasion included. In order to simulate realistic logging tools, we take the transmitter antennas consisting of circular wire loops instead of magnetic dipoles. We also investigate the apparent resistivity of inhomogeneous formation for different dip angles.
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【期刊论文】YPO4 nanocrystale: preparation and size-induced lattice symmetry enhancement
韩炜, Liu Qiong, Su Yiguo, Han Wei, Yu Hongsheng
JOURNAL OF RARE EARTHS, Vol.26, No.4, Aug.2008, P.495,-0001,():
-1年11月30日
YPO4 and Eu-doped YPO4 nanoparticles were synthesized by a hydrothermal method. The structure, content of surface water and luminescence properties were characterized by X2ray diffraction (XRD), transmission electron microscopy (TEM), fluorescence spectrum, infrared spectroscopy, Raman spectroscopy and thermogravimetry analysis. The XRD measurements indicated that YPO4 nanoparticles were a single phase of tetragonal (I41PAMD) zircon struc-ture type. YPO4 nanoparticles showed a size reduction with the reaction temperature decreased. Considering the XRD, IR and Raman analysis, a lattice expansion and enhancement of structural units were observed with the particle size decreased. A dipole to dipole model was used to analysis the intrinsic reason. The fluorescence spectra of Eu2doped YPO4 was also given and the emission bands were ascribed to the f to f tran-sitions of Eu3 +.
hydrothermal method, lattice expansion, blue shift, rare earths
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韩炜, LIU Guanghui, WANG Peipei, LIU Qiong and HAN Wei*
Chinese Journal of Chemical Engineering, 16(5)805-811 (2008),-0001,():
-1年11月30日
A new nanometer material, nanometer AlO(OH) loaded on the fiberglass with activated carbon fibers felt(ACF) as the carrier, was prepared by hydrolytic reaction for the removal of Cd(II) from aqueous solution using column adsorption experiment. As was confirmed by XRD determination, the hydrolysis production loaded on fiberglass was similar to the orthorhombic phase AlO(OH). SEM images showed that AlO(OH) particles were in the form of small aggregated clusters. The Thomas model was applied for estimating the kinetic parameters and the saturated adsorption ability of Cd(II) adsorption on the new adsorbent. The results showed that the maximum adsorption capacity of Cd(II) was 128.50mg·g-1 and 117.86 mg·g-1 for the adsorbent mass of 0.3289 g and the adsorbent mass of 0.2867g, respectively. The elution experiment result indicated that the adsorbed Cd ions was easily desorbed from the material with 0.1 mol·L-1 HCl solution. Adsorption-desorption cycles showed the feasibility of repeated uses of the composited material. The adsorption capacities were influenced by pH and the initial Cd(II) concentration. The amount adsorbed was greatest at pH 6.5 and the initial Cd(II) concentration of 0.07mg·L-1, respectively. Nanometer AlO(OH) played a major role in the adsorption process, whereas the fiberglass and ACF were assistants in the process of removing Cd(II). In addition, the adsorption capacities for Cd(II) were obviously reduced from 128.50mg·g-1 to 64.28mg·g-1 when Pb ions were present because Pb ions took up more adsorption sites.
removal,, Cd(, II), ,, nanometer AlO(, OH), ,, adsorption and elution,, mechanism
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韩炜, SONG Ruo-Long**, WANG Ke-Xie, ZHANG Hong-Bing, HAN Wei***
CHIN. PHYS. LET. Vol.24, No.5 (2007) 1309,-0001,():
-1年11月30日
A new method based on generalized reflection and transmission (R/T) coefficients method is proposed to calculate the single seismic phase (SSP) of cylindrically mlultilayered media including liquid intelayer. The use of nor-malization facotrs and normalzed Lame coefficients makes the algorithm stable numerically. Using the modified R/T matrices, we derive the iterative expressions of generalized R/T matrices, and by using the iterative relation we determine the SSP of each interface and the full waveforms. To show the superiority of this new approach for investigating of reflection and transmission properties of cylindrically multivalyered media, we simulate the full waveforms and SSPs of cased hole model with annulus 1 (casing-cement interface) channelling (or, cross-flow). The generalized reflection coefficient spectra and SSPs of interfaces obtained show the propagation mechanism of each component of full waveform clearly.
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引用
韩炜, 刘琼, 苏毅国, 于洪生, 韩炜*
中国稀土学报,2007,25(6):656~661,-0001,():
-1年11月30日
利用水热法合成了磷酸钇基质(YPO4)和磷酸钇掺铕(YPO4∶Eu)的纳米颗粒。通过粉末衍射(XRD)、透射电镜(TEM) 、红外光谱、拉曼光谱、荧光光谱、热重分析(TG)等手段对合成纳米材料的结构、粒度、表面水的含量以及发光特性进行了表征。结果表明:样品结晶良好,为单一的四方相(I41PAMD)锆石结构,且随着水热温度的降低,晶粒的粒度变小。研究发现,随着YPO4 样品粒度的减小,晶格体积膨胀,并通过XRD 结合红外和拉曼分析发现晶体对称性提高。利用表面水的偶极模型分析了其内在机制。给出了YPO4∶Eu 的荧光光谱,指出其中各个峰对应的跃迁能级,确定为Eu3 + 的发射峰。
水热法, 晶格膨胀, 蓝移, 稀土
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韩炜, 李素文, 朱长云, 赵辉, 王珩, 王月, 李鱼, 吴通好
吉林大学学报(理学版):2004,42(3):475~478,-0001,():
-1年11月30日
利用自制的纳米净水材料对含低浓度Cd2+ 的水溶液进行处理,结果表明,该纳米净水材料对低浓度Cd2+ 具有很好的去除效果和很强的去除能力,且去除过程操作简单,效果好,效率高。
纳米净水材料, Cd2+, , 水处理
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韩炜, 徐鹏, 龚依民, 许静, 崔海峰, 李刚, 陈岳, 黄光寰, 徐玉书, 王魁香, 吴通好
吉林大学学报(理学版):2004,42(2):311~315,-0001,():
-1年11月30日
分析了柴油机微粒过滤器及其再生技术的现状与发展趋势,论述了现有后处理技术的优缺点,着重介绍了微波加热技术与催化再生技术相结合应用到柴油机尾气净化装置的再生技术。台架试验结果表明,使用微波加热技术与催化再生技术与原机相比,柴油机排气微粒下降9812%,为最有发展前景的后处理技术之一。
柴油机, 壁流式蜂窝陶瓷载体, 微波, 催化剂, 再生
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韩炜, 邹广田, 滕凤恩, 王煜明, PANIN V. E., SLOSMAN A. I.
材料研究学报,2000,14(5):548~552,-0001,():
-1年11月30日
使用X射线衍射、电子显微镜及光学一电视动态观察等手段研究了在介观尺度上的塑性形变对半晶聚乙烯的结构和性能的影响,解释了半晶聚乙烯的形变与断裂机制。结果表明,随形变的增大,结晶相的含量和晶区取向度增高。半晶聚乙烯的结构特点使其从塑性形变一开始就形成介观结构,介观结构的运动与变化直接影响其形变乃至断裂。
形变 介观尺度 半晶聚乙烯
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韩炜, 孔晓华, 刘宝璋, 滕凤恩
吉林大学自然科学学报,1998,(3):58~60,-0001,():
-1年11月30日
对聚乙烯电缆皮室温单轴拉伸测试。当拉伸速度达到一定数值时,其应力(α)一应变(ε)曲线出现“类屈服”现象。对不同形变程度(εt)的样品进行x射线衍射线形分析,结果表明,其微观畸变度(е)随形变度(ε)的变化与宏观α-ε曲线变化规律相似。
聚乙烯电缆皮,, X射线衍射,, 拉伸形变
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【期刊论文】The Influence of Nano-SiC on the Flux Pinning of YBa2Cu3O7-y/Nano-SiC Composites
韩炜, Zong-Quan Yang (a), Xiao-Dong Su (a), Cheng Zhang (a), Gui-Wen Qiao (a), and Wei Han (b)
,-0001,():
-1年11月30日
In present paper the influence of nano-SiC particles on the flux pinning of YBa2Cu3O7-y has been studied. The investigation reveals that nano-SiC does not change the superconducting transition and the microstructure of the superconductors. At a temperature of 5 K the addition of 0.5 and 1 wt% nano-SiC can lead to an additional flux pinning effect and improve evidently the critical current density Jc. For composites with 1 wt% nano-SiC Jc is two times larger than the reference sample. Meanwhile, at temperature of 20 and 50 K, the fishtail effect is observed for composites YBa2Cu3O7-y/nano-SiC. A reasonable interpretation of the enhanced flux pinning and the occurrence of the fishtail effect is given.
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