400 Result(s)

Article

Laser chemical physics I: State selective excitation

J. Pfab, J. Hager, W. Krieger, C. V. Boughton, R. E. Miller… in Applied Physics B (1982)

Article

Soft X-ray amplification by Li-like Al¹⁰⁺ and Si¹¹⁺ ions in recombining plasmas

Experimental studies of soft X-ray lasers were carried out on the six-beam laser facility and the LF 12 laser facility of SIOM. Using a home-made one-dimensional spatially resolved grazing incidence grating sp...

Zhi-zhan Xu, Zheng-quan Zhang, Pin-zhong Fan, Shi-sheng Chen… in Applied Physics B (1990)

Article

Approach the fluctuation of eigenstates around the avoided level crossing by two-level dynamics

From level dynamics, we show that when two levels come to an avoided level crossing, violent fluctuations of the corresponding eigenstates are similar to a two level process: rapid mixing of the two eigenstate...

Quan-lin Jie, Shun-** Wang, Lian-Fu Wei in Zeitschrift für Physik B Condensed Matter (1997)

Article

Gauge covariant construction of the coherent states for a time-dependent harmonic oscillator by algebraic dynamical method

Time-dependent coherent states for a time-dependent harmonic oscillator are constructed in the framework of algebraic dynamics. These coherent states are gauge-covariant, and its time evolution is governed onl...

Lian-Fu Wei, Shun-** Wang, Quan-Lin Jie in Zeitschrift für Physik B Condensed Matter (1997)

Chapter and Conference Paper

Electrophoretic Separation of Antisense DNA using Polymer-Solution Filled Capillary by Cross-Injection

Different lengths of antisense DNA are normally separated by Polyacrylamide gelfilled column using capillary electrophoresis. The rigid gel bed, however, has a limited lifetime due to the forming of air bubble...

Shu-Hui Chen, Yu-Cheng Lin, Yu-Hung Chen… in Micro Total Analysis Systems ’98 (1998)

Article

New evidence for enhanced cosmogenic isotope production rate in the atmosphere ≈ 37 kaBP from the Guliya ice core

A³⁶Cl peak was found in the predicted section of Guliya ice core, from the Qinghai-Tibetan Plateau, at about 37 kaBP. This cannot be interpreted by means of changes in the accumulation rate, but by the enhanced c...

Ninglian Wang, Tandong Yao, Dahe Qin, L. G. Thompson… in Chinese Science Bulletin (1999)

Article

Pressureless sintered 3Y-TZP/20%Al₂O₃ composite ceramic

Nanometer 3Y-TZP/20%Al₂O₃ (mass fraction) composite powders prepared by the chemical coprecipitation method were pressureless sintered at 1550 °C for 2 h. Effects of calcining temperatures at 800 °C, 1 000 °C, an...

Bang-yao Yin, Ling-sen Wang, Jian-liang Lin… in Journal of Central South University of Tec… (2000)

Article

Sorption and desorption of 1,4-dichlorobenzene on peat

Sorption and desorption of 1,4-dichlorobenzene (DCB) on peat (> 92% organic matter) display large-scale hysteresis and nonlinearity. The magnitude of desorption hysteresis decreases in the order: untreated Pah...

Yong Ran, Zheng Lin, **li Wang, Yushun Min, Guoying Sheng… in Chinese Science Bulletin (2000)

Article

Atomic force microscopic observation on substructure of pollen exine inCedrus deodara andMetasequoia glyptostroboides

The substructure of pollen exine inCedrus deodara (Roxb.) Loud. andMetasequoia glyptostroboides Hu et Cheng has been examined with an atomic force microscope (AFM). The results indicate that the exine substructur...

Bingshi Li, Chen Wang, Yuxi Hu, **xing Lin in Chinese Science Bulletin (2000)

Article

A new method for judging the computational stability of the difference schemes of nonlinear evolution equations

For the non-conservative difference schemes of nonlinear evolution equations with aperiodic boundary conditions, taken one-dimensional nonlinear advection equation as an example, a new method for judging the c...

Wantao Lin, Zhongzhen Ji, Bin Wang, **aozhong Yang in Chinese Science Bulletin (2000)

Article

Optical/digital color photography based on white-light information processing

The achievement in optical/digital color photography based on white-light information processing including the color-encoding camera, the color image decoder, the integral window Fourier algorithm of the Fouri...

Luo Gang, Liu Fulai, Lin Lie, Fang Zhiliang… in Science in China Series E: Technolgical Sc… (2001)

Article

An improved coupling reaction for the preparation of pyridylethynyl benzonitrile compounds

An improved coupling reaction between aromatic ring and acetylene triple bond catalyzed by palladium (0) catalyses for the preparation of pyridylethynyl benzonitrile compounds is described. Efforts were made t...

Zhiyong Wang, Wenbin Lin, Chao Jiang, Qingxiang Guo in Chinese Science Bulletin (2001)

Article

A draft sequence of the rice (Oryza sativa ssp.indica) genome

The sequence of the rice genome holds fundamental information for its biology, including physiology, genetics, development, and evolution, as well as information on many beneficial phenotypes of economic signi...

Jun Yu, Songnian Hu, Jun Wang, Songgang Li, Ka-Shu Gane Wong… in Chinese Science Bulletin (2001)

Article

Effects of antisense CENP-B on the proliferation of HeLa (Tet-off) cells

In order to study the change of the expression of centromere protein B (CENP-B) caused by antisense transfection, proto-eukaryotically expressed fused protein GST-CENP-B (65 ku) was injected into mouse, and a ...

Qian** Liang, Qian Wang, Haiyan Lin, Song Luo, Chunmei Wang… in Chinese Science Bulletin (2002)

Article

Morphological evolution model for unidirectional solidification of multicomponent alloys

Based on the nonlinear interaction of the different species and the calculation of phase diagram, a self-consistent model is developed to describe the interface morphology evolution during unidirectional solid...

**n Lin, Huang Weidong, Wang Meng, Li Yanmin… in Science in China Series E: Technological S… (2002)

Article

Approaches to location prognosis of concealed ore deposits (bodies) of productive mines

This paper demonstrates the channels and methods for location prognosis of concealed ore deposits (bodies) in the deep-seated and surrounding districts of productive mines in accordance with their special feat...

Sheng-lin Peng, Mu Yang, Liang-ming Liu… in Journal of Central South University of Tec… (2002)

Article

Lyapunov exponents for synchronous 12-lead ECG signals

The Lyapunov exponents of synchronous 12-lead ECG signals have been investigated for the first time using a multi-sensor (electrode) technique. The results show that the Lyapunov exponents computed from differ...

Zhenzhou Wang, Zheng Li, Yixiang Wei, **nbao Ning, Yuzheng Lin in Chinese Science Bulletin (2002)

Article

Origin of two differentiation trends in the Emeishan flood basalts

Both the Bowen and Fenner differentiation trends have been recognized in the Emeishan flood basalts. While the Longzhoushan lavas in Panxi paleorift evolved on a trend of silica enrichment (Bowen trend), the l...

Yigang Xu, Houjun Mei, Jifeng Xu, **aolong Huang, Yuejun Wang… in Chinese Science Bulletin (2003)

Article

Effect of UPP on the expression of VEGF and its receptors in mouse uterus during peri-implantation

On day 3 of gestation, one uterine horn of female pregnant mouse was injected intraluminally with 5 µL 0.1 µg/mL lactacystin, a specific inhibitor of ubiquitin-proteasome pathway (UPP), while the contralateral...

Dong Qian, Hongmei Wang, Haiyan Lin, Xuan Zhang, Qinglei Li… in Chinese Science Bulletin (2003)

Article

Quasi-solid-state nanocrystalline TiO₂ solar cells using gel network polymer electrolytes based on polysiloxanes

A quasi-solid-state dye-sensitized nanocrystalline porous TiO₂ film solar cell was fabricated using a novel gel network polymer electrolyte based on polysiloxanes with both polyethylene oxide internal plasticized...

Weiying Li, Junjie Kang, Xue** Li, Shibi Fang, Yuan Lin… in Chinese Science Bulletin (2003)