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Transmission Properties of an Air Waveguide with Left-Handed Holographic Photonic Crystal Cladding

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Chinese Physics Letters 2011年第1期28卷 123-126页

作者： dong guo-yan yanG Xiu-Lun CAI Lu-Zhong School of Science Shandong Jianzhu University Jinan 250101 Department of Optics Shandong University Jinan 250100

An air waveguide of left-handed photonic crystal （PhC） formed by holographic lithography is proposed. The symmetry mismatch between the incident wave and the Bloch modes of the holographic PhC is used to guide light efficiently. By properly designing the waveguide, backscattering loss can be significantly reduced. Due to the unique advantages of holographic photonie crystals, the serious problems of material loss and fabrication difficulty in left-handed material waveguides are also avoided. Furthermore it is shown that high transmission efficiency is easily achieved in the frequencv region with effective refraction index near zero. These features may extend the possible guiding ability of holographic photonic crystal waveguide and its promising potential in the application of photonic integrated circuits.

关键词： Optics quantum optics and lasers

Mapping of QTL Associated with Drought Tolerance in a Semi-Automobile Rain Shelter in Maize (Zea mays L.)

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Agricultural Sciences in China 2011年第7期10卷 987-996页

作者： ZHU Jing-jing WANG Xiao-peng SUN Cui-xia ZHU Xiu-miao LI Meng ZHANG guo-dong TIAN yan-chen WANG Ze-li National Key Laboratory of Crop Biology Ministry of Science and Technology/College of Life Sciences Shandong Agricultural University Tai＇an 271018 P.R.China

Drought is a major constraint in maize production worldwide. We studied quantitative trait loci （QTL） underlying drought tolerance for maize plants grown in two different environments. Traits investigated included ASI, plant height, grain yield, ear height, and ear setting. A genetic linkage map was constructed with 120 simple sequence repeat （SSR） markers based on an F2 population derived from a cross between D5 （resistant parent） and 7924 （susceptible parent）. Correlation and heritability were calculated. QTLs of these traits were identified by composite interval mapping combined with a linkage map covering 1 790.3 cM. The markers were arranged in ten linkage groups. QTL mapping was made of the mean trait performance of the 180 F2：3 population. The results showed five, five, six, four, and five QTLs for ASI, plant height, grain yield, ear height, and ear setting under full irrigation condition, respectively, and four, seven, six, four, and four QTLs for ASI, plant height, grain yield, ear height, and ear setting under severe late stress conditions, respectively. Especially the four QTLs detected for five traits in 2008 and 2009. The universal QTLs information generated in this study will aid in undertaking an integrated breeding strategy for further genetic studies in drought tolerance improvement in maize.

关键词： maize drought tolerance simple sequence repeat quantitative trait loci

Improvement of the Focusing Resolution of Photonic Crystal Negative Refraction Imaging with a Hollow Component Structure

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Chinese Physics Letters 2013年第5期30卷 70-74页

作者： CHEN Shou-Xiang yanG Xiu-Lun MENG Xiang-Feng dong guo-yan WANG Yu-Rong WANG Lin-Hui HUANG Zhe Department of Optics Shandong UniversityJinan 250100 Department of Materials Science and Engineering Tsinghua UniversityBeijing 100084

The negative refraction and imaging effects in photonic crystals can be used to solve diffraction limit problem in near-field *** transmission efficiency and image resolution is a critical work for negative refraction *** theoretically investigate the band structures,equi-frequency surfaces,electromagnetic wave propagation,and the image intensity distributions in a two-dimensional hexagonal photonic crystal consisting of hollow *** is found that,in contrast to a hexagonal photonic crystal consisting of solid dielectric cylinders of the same radius,photonic crystals with hollow components can be used to optimize the all-angle negative *** simulations show that the transmission efficiency and resolution of image can be enhanced by changing the radii of the hollow air rods.

关键词： refraction hexagonal resolution

Study of the Correlation of EGFR and K-RAS Gene Mutations with Its Protein Expression in Non-small Cell Lung Cancer

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Clinical oncology and cancer researeh 2010年第2期7卷 97-102页

作者： Huan-ling L UAN Lei-na SUN Na dong yan guo Bao-cun SUN Zhong-li ZHAN Department of Pathology of Tianjin Can-cer Hospital Tianjin Medical University Tianjin Key Laboratory of Cancer Prevention and Therapy Tianjin Diagnosis and Therapy Center of Lung Cancer Tianjin 300060 China.

OBJECTIVE To investigate gene mutations of epidermal growth factor receptor （EGFR） and K-RAS （Kirsten rat sarcoma viral oncogene） in Chinese patients with non-small cell lung cancer （NSCLC）, and study the correlation with its protein expression and its clinical significance on *** Detect the EGFR and K-RAS gene mutations status by gene sequencing and use the method of immunohistochemistry to detect EGFR and K-RAS protein *** The frequency of EGFR mutations was 33%, mainly located in exon 19 and exon 21. The frequency of K-RAS mutations was 5.5%, mainly located in codon 12. There was no case which both had EGFR and K-RAS mutations, suggesting a mutually exclusive relationship between the two. EGFR mutations are more common in adenocarcinomas （particularly those with bronchioloalveolar features）, nonsmokers and females. 16% were detected EGFR positive expression and had no correlation with EGFR mutation （P 〉 0.05）, but had significant correlation with mutation in exon 19 （P 〈 0.05）. The frequency of K-RAS positive expression was 52.5% and had no correlation with K-RAS mutation （P 〉 0.05）. Twelve （8 cases were protein-negative） out of 15 gefitinib-treated NSCLC patients with disease control carry EGFR *** EGFR protein expression has some correlation with exon 19 mutations. Combined detection of EGFR and K-RAS gene mutations can help clinicians to choose patients who may benefit from EGFR tyrosine kinase inhibitor （EGFR-TKI） and to predict the response and prognosis of gefitinib.

关键词： Epidermal growth factor receptor (EGFR) Kirstenrat sarcoma viral oncogene (K-RAS) Non-small cell lung cancer(NSCLC) EGFR tyrosine kinase inhibitor (EGFR-TKI).

Analysis of Electromagnetic Exposure in Wireless Power Transfer System for Endoscopic Micro-robot

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Chinese Journal of Biomedical Engineering(English Edition) 2008年第2期17卷 47-53,60页

作者： YE dong-dong yan guo-zheng LI Jia-jun WANG Kun-dong MA Guan-ying Institute of Precision Engineering and Intelligence Micro-system School of Electronics and Information Technology Shanghai Jiaotong University Shanghai 200240 China

A wireless power transfer system for endoscopic micro-robot operating at 36 kHz is presented in this paper. The issue of patient＇ s health and safety regarding exposure to the electromagnetic field is addressed. The specific absorption rate and current density can be used to investigate the electromagnetic influences on the biological tissues surrounded by the wireless power launching coil. In view of this purpose, the limited close-ound solenoid electromagnetic model is built, the relationship between the electric intensity and the specific absorption rate and current density is deduced, and the simulation experiments are done. Experimental results show that the values of SAR and current density related to different tissue catalogs are all very small and do not exceed their own limits respectively when the resonance frequency of operation is 36 kHz.

关键词： wireless power transfer endoscopic micro-robot specific absorptionrate current density solenoid

我国近代学校体育的兴起(1901-1911年)

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北京体育大学学报 2005年第6期28卷 801-803页

作者：董艳国黑龙江大庆市八一农垦大学军体部黑龙江大庆163319

清末在新政和军国民主义及新教育思想传播的大背景下,各级各类学校开始了中国教育史上从未有过的体育教育,并且在体育师资的培养上做了一些工作。虽然具体实施的情形有好有坏,但是,清末体育教育的开创之功是极为重要的,并对后世发生了... 详细信息

清末在新政和军国民主义及新教育思想传播的大背景下,各级各类学校开始了中国教育史上从未有过的体育教育,并且在体育师资的培养上做了一些工作。虽然具体实施的情形有好有坏,但是,清末体育教育的开创之功是极为重要的,并对后世发生了相当大的影响。

关键词：学校体育近代清末体育教育中国

Studies on the Gold-Coated Electrode with Grid

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Chemical Research in Chinese Universities 1992年第4期8卷 461-464页

作者： ZOU Ming-zhu, SHENG Gui-hua, ZHENG guo-dong and ZHFNG yan-sheng (Department of Chemistry, Jilin University, Changchun, 130023)

Introduction Thin-layer spectroelectrochemical method has many unique advantages, therefore this method has been widely applied and developed. Recently light transparent thinlayer spectroelectrochemical cells with various types of structures have been reported at home and abroad with gold or platinum minigrids as the working electrode in most of

关键词： Gold grid electrode Potassium ferricyanide Methylene blue Spectroelec-trochemical method

Feasibility of Localizing in vivo Micro-devices with Electromagnetic Methods

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Journal of Shanghai Jiaotong university(Science) 2008年第5期13卷 559-561页

作者：郭旭东颜国正姜萍萍 School of Electronic Information and Electrical Engineering Shanghai Jiaotong University

In order to measure the location of medical micro-devices in the gastrointestinal tract, electro-magnetic methods were developed considering the magnetic permeability of human bodies. Two varieties of electromagnetic localization methods have been implemented: one uses direct current(DC) to generate the elec-tromagnetic field, and the other uses alternating current (AC). The two varieties of the localization principle were analyzed and relevant experiments were made. The experiments show that the alternating electromagnetic method acquires higher accuracy, higher stability and wider measurement range.

关键词： medical micro-devices position measurement electromagnetic field

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清代评话类小说与口述史

南京师大学报（社会科学版） 2006年第5期 131-136页

作者：董国炎扬州大学文学院江苏扬州225002

清代和民国初期评话类小说反映了口述史的发展和拓宽。有些作品以纪实方法,讲述当时重要事件和人物故事,填补了历史文献的空白,纠正了历史文献的曲解,有珍贵的史料研究价值。有些作品对社会史诸多方面特别是民俗风情,有真实详细的描绘... 详细信息

清代和民国初期评话类小说反映了口述史的发展和拓宽。有些作品以纪实方法,讲述当时重要事件和人物故事,填补了历史文献的空白,纠正了历史文献的曲解,有珍贵的史料研究价值。有些作品对社会史诸多方面特别是民俗风情,有真实详细的描绘。这不但弥补了中国传统史学的薄弱环节,还提供了史学思想史研究的范例。以上两类作品因为题材重大、贴近生活、生动丰富、情趣浓郁,深受听众和读者喜爱,因而历久不衰。这提示我们:中国小说的审美评价标准不能单一化。

关键词：评话小说口述史历史真实社会史