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Applied Mathematics and Mechanics(English Edition) 1990年第3期11卷 271-276页

作者：孙光甫 Department of Computer Science Fuzhou University Fuzhou

We discuss the uniformly higher order accurate extrapolations, which are based on the uniform expansion for global error, to solutions of uniformly convergent discretization methods for singularly perturbed problems. By applying the approach to the in-Allen-Southwell scheme for a non-self-adjoint problem, we obtain an extrapolation solution which is uniformly convergent with order two. We confirm the result by numerical calculations.

关键词： convergent uniformly applying perturbed Richardson satisfy adjoint singularly perturbation Uniform

TWO BETA SPIRALS IN THE WESTERN BOUNDARY REGION OF THE PACIFIC

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Chinese Journal of Oceanology and Limnology 1991年第4期9卷 358-363页

作者：崔茂常李永祥胡敦欣 Institute of Oceanology Academia Sinica Qingdao . 266071

Beta spiral technique can be used to determine the three dimensional velocity field , usually in the open ocean , as functions of depth at a single location. This work is aimed at applying the method to the lower layers in the western boundary area of the Pacific at two locations covered by 5 CTD stations each , and then using the results to study the vertical structure of the western boundary current in the Pacific .

关键词： ocean applying aimed Schott covered vorticity absolute vertically definitely similarity

EFFECT OF MOLECULAR INTERACTION ON β PHASE CRYSTALLIZATION OF PVF_2/PMMA BLENDS

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Chinese Science Bulletin 1991年第23期36卷 2023-2024页

作者：陈晔杨德才 Laboratory of Polymer Physics Changchun Institute of applied Chemistry Academia Sinica Changchun 130022 PRC

Poly （vinylidene fluoride）（PVF2）is a semicrystalline polymer which has at least four forms of crystalline structure, i.e.α,β,γ and δ phases. Among these four polymorphs, however, much attention has been paid to the β phase, because of its extensive applications in piezoelectric and pyroelectric properties, β phase is normally obtained by mechanical deformation or by applying an extremely high electric field to the α phase PVF2 . Only very recently, an unoriented β phase PVF2 has been obtained directly from its melt by highrate quenching. In the present letter, we study the effect of tacticity of PMMA on β phase formation of PVF2 during the quenching process.

关键词： crystalline quenching piezoelectric fluoride applying extremely normally adding nucleation letter

Views and Practices on Bilingual Teaching

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陕西师范大学学报（哲学社会科学版） 2004年第S2期33卷 426-428页

作者：周振中李彩霞西安武警工程学院军事经济系陕西西安710086

Under the new situation of the deepening China’s reform, opening up and entering into WTO, education meets new challenges. Bilingual teaching is the demands of entering WTO of our country and enhancing international competition, is the developing requests of information and Internet times, is a certain trend of developing diathesis education. It makes students capture knowledge in English, improving students’ applying English ability, meanwhile it makes English and special knowledge infiltrate each other. Bilingual teaching is one of methods of bettering students and teachers’ English level.

关键词： bilingual teaching English teaching applying ability

A STATISTICAL STUDY ON RELATIONSHIP OF EL NINO EVENTS TO THE HYDROGRAPHY ALONG 137°E IN WINTER

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Chinese Journal of Oceanology and Limnology 1991年第2期9卷 132-145页

作者：崔茂常胡敦欣 Institute of Oceanology Academia Sinica Qingdao 266071

Principal component analysis (PCA) as used by meteorologists and oceanographers is a powerful tool for analysis of the spatial and temporal variability of physical *** study was aimed at applying "quasi-local PCA for singular factor" to make the cumulative percentage for the first principal component as great as possible, so that a multi-dimensional problem can be reduced to a single-dimensional one, and then stepwise regression analysis can be used to parameterize the relationship between El Nino events and the hydrographic factor anomalies along 137 癊 in *** results show that the salinity anomalies on 30 m level, the sigmat on 250 m level, and the temperature on 300 m level at 8 癗 are most closely related with El Nino events because of thermocline movement caused by enhanced upwelling in this area during El Nino years.

关键词： salinity winter stepwise powerful latitude applying Barnett E IN WINTER aimed analogy

Lamellar hafnium ditelluride as an ultrasensitive surface-enhanced Raman scattering platform for label-free detection of uric acid

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Photonics Research 2021年第6期9卷 1039-1047页

作者： YANG LI HAOLIN CHEN YANXIAN GUO KANGKANG WANG YUE ZHANG PEILIN LAN JINHAO GUO WEN ZHANG HUIQING ZHONG ZHOUYI GUO ZHENGFEI ZHUANG ZHIMING LIU MOE Key Laboratory of Laser Life Science&SATCM Third Grade Laboratory of Chinese Medicine and Photonics Technology College of BiophotonicsSouth China Normal UniversityGuangzhou 510631China Department of Hematology The Seventh Affiliated HospitalSun Yat-sen UniversityShenzhen 518107China Department of Medical Biotechnology School of Basic Medical SciencesGuangzhou University of Chinese MedicineGuangzhou 510006China

The development of two-dimensional(2D)transition metal dichalcogenides has been in a rapid growth phase for the utilization in surface-enhanced Raman scattering(SERS)***,we report a promising 2D transition metal tellurides(TMTs)material,hafnium ditelluride(HfTe2),as an ultrasensitive platform for Raman identification of trace molecules,which demonstrates extraordinary SERS activity in sensitivity,uniformity,and *** highest Raman enhancement factor of 2.32×10^(6)is attained for a rhodamine 6G molecule through the highly efficient charge transfer process at the interface between the HfTe2 layered structure and the adsorbed *** the same time,we provide an effective route for large-scale preparation of SERS substrates in practical applications via a facile stripping *** application of the nanosheets for reliable,rapid,and label-free SERS fingerprint analysis of uric acid molecules,one of the biomarkers associated with gout disease,is performed,which indicates arresting SERS signals with the limits of detection as low as 0.1 mmol/*** study based on this type of 2D SERS substrate not only reveals the feasibility of applying TMTs to SERS analysis,but also paves the way for nanodiagnostics,especially early marker detection.

关键词： stripping applying adsorbed

SIMPLE ANALGESIA FOR ABDOMINAL PAIN AND TOOTHACHE BY DIGITAL PRESSURE

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Journal of Traditional Chinese Medicine 1990年第3期10卷 172-173页

作者：李学 Sino-Japanese Friendship Hospital Beijing

Digital pressure is a Chinese folk reme-dy for analgesia by applying digital pressureon acupoints or the location of *** ischaracterized by evident curative effect,simplicity,and a wide range of applicability;hence it has been in practice for hundreds *** is still a very convenient mode oftreatment under situations when modernmedical aid is not *** methodand usage is described as follows.

关键词： SIMPLE simplicity applying hence hundreds convenient analgesia evident situations usage

STATISTICAL STUDY ON RELATIONSHIP OF EL NIO EVENTS AND THE HYDROGRAPHY ALONG 137 °E IN SUMMER

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Chinese Journal of Oceanology and Limnology 1991年第3期9卷 222-231页

作者：崔茂常胡敦欣 Institute of Oceanology Academia Sinica Qingdao 266071

Principal component analysis (PCA) used by meteorologists and oceanographers is a powerful tool for the analysis of the spatial and temporal variability of physical fields .This study is aimed at applying " quasi-local PCA for singular factor " to make the cumulative percentage for the first principal component as great as possible , so that the many-dimension problem can be reduced to a single-dimension one , and at combining PCA with stepwise regression analysis to parameterize the relationship between El Nino events and the anomalies in hydrographic factors along 137°E in *** results show that the hydrography on 30-50 m levels at 7-9° N along 137° E in summer is very closely correlated with El Nino events because of the thermocline movement caused by enhanced upwelling in this area during El Nino years .

关键词： powerful applying fitting singular cumulative absolute stepwise E IN SUMMER salinity aimed

Continuous variable quantum key distribution with a shared partially characterized entangled source

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Photonics Research 2023年第3期11卷 463-475页

作者： SHANNA DU PU WANG JIANQIANG LIU YAN TIAN YONGMIN LI State Key Laboratory of Quantum Optics and Quantum Optics Devices Institute of Opto-ElectronicsShanxi UniversityTaiyuan 030006China Collaborative Innovation Center of Extreme Optics Shanxi UniversityTaiyuan 030006China School of Information Shanxi University of Finance and EconomicsTaiyuan 030006China

Locking the sophisticated and expensive entanglement sources at the shared relay node is a promising choice for building a star-type quantum network with efficient use of quantum resources,where the involved parties only need to equip low-cost and simple homodyne ***,to our best knowledge,we demonstrate the first experimental continuous variable quantum key distribution with an entanglement source between the two *** consider a practical partially characterized entangled source and establish the security analysis model of the protocol under realistic *** applying a biased base technology,the higher key rate than that of the original protocol is *** experimental results demonstrate that the distance between two users can reach up to 60 km over telecom single-mode fiber,implying the feasibility for high-rate and secure communication with a shared entangled source at metropolitan distances.

关键词： quantum distribution applying

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谈中锋勾手投篮技术的运用

内蒙古师范大学学报(自然科学汉文版) 1999年第1期28卷 81-82页

作者：霍瑾王雪峰内蒙古师范大学体育学院

分类号Ｇ８４１文献标识码Ｂ文章编号１００１－８７３５（１９９９）０１－００７９－８０纵观当今篮球比赛，其重要特征之一就是对抗激烈，运动员的技术和战术都要在激烈的对抗及频繁的身体接触中加以运用．中锋在赛场上的战略位置，... 详细信息

分类号Ｇ８４１文献标识码Ｂ文章编号１００１－８７３５（１９９９）０１－００７９－８０纵观当今篮球比赛，其重要特征之一就是对抗激烈，运动员的技术和战术都要在激烈的对抗及频繁的身体接触中加以运用．中锋在赛场上的战略位置，决定了其必然处在激烈对抗的旋涡中心...

关键词： hook shot skill centres skill applying