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| 1 | Interaction between Anomalous Winter Monsoon in East Asia and EI Nino Events显示文摘Based on a series of data analyses, the intimate relations between anomalous winter monsoon in East Asia and El Nino arc studied in this paper.Anomalistic circulation in the Northern Hemisphere caused by El Nino event can lead to enhancing the Ferre! cell and the westerlies in the mid-latitudes as the Hadley cell and result in the location of the front zone in East Asia to the north. These are unfavourable for the cold wave breaking out southward in East Asia. Therefore, there ate warmer weather and weaker winter monsoon in East Asia in El Nino winter.There are stronger and frequent cold waves in East Asia during the wintertime prior to the occurrence of El Nino event. They will induce stronger winter monsoon in East Asia. Thus, the weakened trade wind and enhanced cumulus convection in the equatorial middle-western Pacific area caused by the stronger winter monsoon will play an important role in the occurrence of El Nino event. Therefore, the anomalously strong winter monsoon in East Asia during | 李崇银 | 1990 | Advances in Atmospheric Sciences1990，7，1： | 94 |
| 2 | Design,analysis and control of hybrid excited doubly salient stator-permanent-magnet motor显示文摘In this paper,a new hybrid excited doubly salient stator-permanent-magnet motor is proposed,where both permanent magnets and DC field windings are located in the stator.In theory,the mathematical model and design method of the motor are developed.The corresponding output power equation and the relationship between the flux control capability and the extended speed range are deduced in details.By using an efficient 'one-step' three-dimensional(3D) finite element method,the electromagnetic performances are analyzed,in which the leakage flux outside the stator circumference and end-effect are taken into account.Based on the operation principle of the motor,the control strategy and scheme are developed and implemented experimentally.Both experimental results and finite element analysis show that the proposed motor not only maintains the advantages of doubly salient permanent magnet motors,but also offers high energy efficiency over a wide speed range,which makes the motor an interesting candidate for electric vehicles. | ZHU XiaoYong1,2 & CHENG Ming1 1 Engineering Research Center for Motion Control of MOE,School of Electrical Engineering,Southeast University,Nanjing 210096,China 2 School of Electrical and Information Engineering,Jiangsu University,Zhenjiang 212013,China | 2010 | Science China(Technological Sciences)2010，53，1： | 16 |
| 3 | Internal structures and high-velocity frictional properties of a bedding-parallel carbonate fault at Xiaojiaqiao outcrop activated by the 2008 Wenchuan earthquake显示文摘This paper reports internal structures of a bedding-parallel fault in Permian limestone at Xiaoji-aqiao outcrop that was moved by about 0.5 m during the 2008 MW7.9 Wenchuan earthquake. The fault is located about 3 km to the south from the middle part of Yingxiu-Beichuan fault, a major fault in the Longmenshan fault system that was moved during the earthquake. The outcrop is also located at Anxian transfer zone between the northern and central segments of Yingxiu-Beichuan fault where fault system is complex. Thus the fault is an example of subsidiary faults activated by Wenchuan earthquake. The fault has a strike of 243°or N63°E and a dip of 38°NW and is nearly optimally oriented for thrust motion, in contrast to high-angle coseismic faults at most places. Surface outcrop and two shallow drilling studies reveal that the fault zone is several centimeters wide at most and that the coseismic slip zone during Wenchuan earthquake is about 1 mm thick. Fault zone contains foliated cataclasite, fault breccia, black gouge and yellowish gouge. Many clasts of foliated cataclasite and black gouge contained in fault breccia indicate multiple slip events along this fault. But fossils on both sides of fault do not indicate clear age difference and overall displacement along this fault should not be large. We also report results from high-velocity friction experiments conducted on yellowish gouge from the fault zone using a rotary shear low to high-velocity frictional testing apparatus. Dry experiments at normal stresses of 0.4 to 1.8 MPa and at slip rates of 0.08 to 1.35 m/s reveal dramatic slip weakening from the peak friction coeffcient of around 0.6 to very low steady-state friction coeffcient of 0.1–0.2. Slip weakening parameters of this carbonate fault zone are similar to those of clayey fault gouge from Yingxiu-Beichuan fault at Hongkou outcrop and from Pingxi fault zone. Our experimental result will provide a condition for triggering movement of subsidiary faults or off-fault damage during a large earthquake. | Toshihiko Shimamoto | 2012 | Earthquake Science2012，25，3： | 6 |
| 4 | Sensitivity Experiments on Summer Monsoon Circulation Cell in East Asia显示文摘The East-Asian summer monsoon meridional circulation (SMMC) cell is simulated together with two vigorous rainbands in terms of a primitive-equation model including in itself a variety of diabatic heating, frictional dissipation and moist processes under the condition of mountains available. Results are comparable to observations. Also, performed are experiments with the reduction of water content, and exclusion of the cumulus convective process and mountain effect. Contrast analyses indicate that the cell is strongly sensitive to the condition of the humidity field in the atmosphere, more intensely at 120°than at 100°E, and the presence (absence) of the cumulus convection has considerable effect on the intensification(weakening) of the cell, with the mountain ranges exhibiting more influence upon the cell at 100° than 120°E. This may suggest that a great difference lies in the cause of the cell for the two meridions. | 何金海 李俊 朱乾根 | 1989 | Advances in Atmospheric Sciences1989，6，1： | 6 |
| 5 | Nano-texture of penetrative foliation in metamorphic rocks显示文摘By observing four samples obtained from Jiangxi Province, China, under the scanning electron mi-croscope (SEM), we discovered that nano-particle layers were commonly formed on sliding planes of the penetrative foliation in metamorphic rocks. We also successfully reproduced this phenomenon with a tri-axial pressure experiment. Having gone through the granulitization-alienation-partition in the shear sliding process, the nano-particles (40-95 nm in diameter) display different individual shapes and dis-tinct layered textures. This nano-confinement layer is essentially a frictional-viscous stripe with vis-cous-elastic deformation. In the micro-domain stripe, activities in structural stress field-rheological physical field-geochemical field are very dynamic, corresponding to the three stages (i.e., shear sliding strengthening-weakening-exfoliating) of the foliation development in metamorphism rocks. As such, the viscous-elastic deformation behavior helps shed light on the understanding of the micro-dynamic mechanism of the structural shearing. | SUN Yan LU XianCai ZHANG XiHui LIU Hao LIN AiMing | 2008 | Science China Earth Sciences2008，51，12： | 5 |
| 6 | Seepage-stress coupled modeling for rainfall induced loess landslide显示文摘Although rainfall is rare on the Loess Plateau of western China, landslides occur frequently there in rainy season. Surveys report that landslide hazards always follow heavy rains. In this study, a seepage-stress coupling model for rainfall induced landslide is used to examine an actual disastrous event in Yulin by the end of July, 2017. The effects of rainfall duration, rainfall intensity and soil weakening on slope stability are studied in detail. The results illustrate that the safety factor drops sharply at first and then is gradually declining to below 1.05 during additional two days of heavy rain. With soil strength softening considered, the slope would be more unstable, in which the weakening in soil cohesion is found to be a more sensitive factor. | Danyang Zhou Zhen Zhang Jiachun Li Xiaoliang Wang | 2019 | Theoretical & Applied Mechanics Letters2019，9，1： | 2 |
| 7 | Cretaceous-Early Eocene Tectonic Stress Field in China显示文摘The Cretaceous-early Eocene tectonic stress field in China was reconstructed using the data of 369 largeand medium-scale flexural folds and 157 joint sets. It was found that the maximum compressive principal stress axis in eastern China dips 32° NE (nearly horizontal), and strikes SW 212°, whereas that in western China dips 15° NE (also nearly horizontal) and trends SW 195°. The estimation of the dip angles of fold limbs and the palaeotectonic stress values indicates that there was a tendency of gradual weakening of tectonism from southwestern to northeastern China in the Cretaceous-early Eocene. At the depth of 2-3 km, the differential stress value changes from 183 MPa in Tibet to 100 MPa in North and East China.The authors consider that the tectonic stress of this period was related to the north-northeastward movement and push of the Indian-Australian plate. | Wan Tianfeng and Zhu Hong China University of Geosciences, Beijing, China | 1989 | Acta Geologica Sinica(English Edition)1989，63，3： | 2 |
| 8 | Water masses classification of the upper layer in the Equatorial Western Pacific using ISODATA of fuzzy cluster显示文摘-In this paper,by using ISODATA of fuzzy cluster,the water masses classification of the upper layer in the E-quatorial Western Pacific is carried out. On the basis of the degree of the membership in the obtained optima) classification matrix, the solid distribution of the detailed structure of water masses is made. The water of the upper layer,consisting of six water masses,may be divided into three layers,i, e. ,the surface,subsurface and intermediate layer. Besides analyzing the features of various water masses,a discussion on their distribution structure and formation mechanism is also made. | | 1990 | Acta Oceanologica Sinica1990，9，2： | 1 |
| 9 | Plastic mechanism of deformation of garnet——Water weakening显示文摘The strongly deformed eclogites are well developed in ultra-high pressure jadeite-quartzite zone of the Dabie Mountains, Eastern China, and garnets had been deformed strongly. Observations by transmission electron microscopy identified not only structure of plastic deformation occurring as free dislocation, dislocation loops and dislocation walls, but also clusters of water molecules present in the deformed garnet. Using infrared spectroscopy, two types of hydrous components are identified as the hydroxyl and free-water in the garnet. Based on analysis of microstructure mechanism of deformation in garnets, and experimental data of petrology, the clusters of water molecules were considered to lead strong plastic deformation of garnet by dislocations because of mechanical weakening. | 苏文 从柏林 游振东 钟增球 陈代章 | 2002 | Science China Earth Sciences2002，45，10： | 1 |
| 10 | NUMERICAL STUDY OF THE SHORT-TERM CLIMATIC OSCILLATION FORCED BY EL NINO DURING NORTHERN WINTER显示文摘Using a nine-layer global spectral model, numerical schemes with two different SST distributions inJanuary (control case and abnormal case) have been tested to study the climatic effect, propagation charateris-tics and the maintenance mechanism of the short-term climatic oscillation caused by El Nino during northernwinter. The main results are as follows: (1) During northern winter, there exist two wave trains because ofthe influence of El Nino. One is similar to PNA pattern, and the other is similar to EUP pattern. (2) ThePNA-like wave train caused by the anomalous SST forcing in central and eastern equatorial Pacific Ocean is dueto the response of ultralong wave and long wave components of Rossby mode, and the EUP-like wave traincrossing Eurasia is mainly due to the wave component of Rossby mode. (3) During northern winter, the warmwater region in central equatorial Pacific Ocean is the source of forced wave trains. (4) In northern winter,the energy source for maintaining the short-term climatic oscillation is from the interaction between eddies, andbetween eddy and zonal flow. | 倪允琪 林武银 宁冬梅 | 1990 | Acta meteorologica Sinica1990，4，5： | 1 |
| 11 | EARTH ROTATION AND EL NIO EVENTS显示文摘The well-known El Nio event, the abnormal increase of Equatorial sea surface temperature of the east Pacific Ocean exerts significant influence on the global-scale atmospheric circulation and climatical anomaly in various areas. The El Nio events have been reported to result from an earlier-stage warm water accumulation in the west Pacific and the eastward transmission of Kelvin waves caused by the collapse of the SE trades, or rolated to the weakening of the trades led by decrease of SE Pacific high. | 任振球 张素琴 | 1985 | Chinese Science Bulletin1985，30，5： | 1 |
| 12 | Textile Industrial Production up 21.9% in 2007显示文摘China’s textile industrial production in 2007 is expected to reach RMB3.05 trillion,a year-on-year increase of 21.9%.China National Textile and Apparel | LiLy Wang | 2008 | China Chemical Reporter2008，，2： | 0 |
| 13 | Analytical Studies on the Variations of the Antarctic Ozone Layer显示文摘The Antarctic ozone hole which was discovered in the mid 1980s has caused much attention from the scientists and politicians throughout the world.For the formation of the Antarctic ozone hole, most scientists believe that the man-made chemical materials such as CFCs etc. are main cause. On the other hand, the electrochemistry-dynamics theory presented by Wei (Guang Ming Daily Dec. 11 ,1990) two years ago has also caused some attention.In the paper the data of ozone, solar activity meteorology over Antarctica have been used for statistical analytical studies. Our results present some new evidence to support Wei’s theory. However the influence of the human activities can never be slighted. | 曲绍厚 | 1992 | Advances in Atmospheric Sciences1992，9，1： | 0 |
| 14 | Weakening Mechanisms of Platelike σ Phase on Ni-base Superalloys显示文摘On the basis of an investigation on σ phase inNi-base cast superalloy K24 and the results aboutσ phase in other Ni-base superalloys,an embrittl-ing mechanism and a softening mechanism,bywhich platelike σ phase weakens the Ni-basesuperalloys,have been proposed.It is consideredthat the platelike morphology and the habit precipi-tation along{111}of σ phase are necessary condi-tions for both mechanisms.The embrittling mecha-nism is dominant at room temperature and highstrain rate,and the softening mechanism is domi-nant at high temperature and low strain rate.Ac-cording to the idea of the softening mechanism andthe analyses of σ phase and alloy compositions,it isconsidered that Nb,Mo and W in the alloys may beresistant to the detrimental effect of σ phase on thestress-rupture properties of the alloys. | 刘跃生 赵先国 刘志中 谢锡善 | 1990 | Journal of Materials Science & Technology1990，6，5： | 0 |
| 15 | AR 5395: A MOTION OF THE DARK MATTER IN 2N FLARE ON 9 MARCH显示文摘On March 9,1989,a 2N flare erupted in AR5395 active regin (N32.E51) in the solar disc between 0220 UT and 0300 Unaccompanied by an M 1.8 X event, and after the maximun the dark matter moved and ejected evidently. From the analyses it is believed that the motion of the dark matter is caused by the flow of chromospheric matter along the direction of the weakening of the magnetic field under the action of the magnetic tension after the flare, the ejection results from the action of the lower magnetic field during the downward flow of the dark matter, and the sunspot penumbre may be the supplementary source of the flow and ejected matter. | Li Zhi, Luan Di, Li ZhikaiYunnan Observatory, Chinese Academy of Sciences | 1990 | 天文研究与技术1990，，4： | 0 |
| 16 | Fault-weakening effect of reservoir temperature of hot spring and its influence on seismic activities显示文摘Fault-weakening effect of reservoir temperature of hot spring and its influence on seismic activities(林元武)Fault-weakeningeffe... | 林元武 | 1994 | Acta Seismologica Sinica(English Edition)1994，7，2： | 0 |
| 17 | Charles Spencer Chaplin显示文摘Charles Spencer Chaplin①, who brought more joy andmore laughter to more people than anyone who ever lived,has been applauded② in every part of the earth. He wasborn in London in 1889. His father was a heavy drinkerwhile his mother’s health was deteriorating. In fact, it wasowing to his mother’s weakening vocal③ condition that atthe age of five he made his first appearance on the stage. | 咏裳 | 1993 | 语言教育1993，，9： | 0 |
| 18 | 新时期康区研究的历史突破(英文)显示文摘I.Kham(Khams)Area CultureThe Sichuan Kham Area is located between Qinghai-Tibet Plateau,the Sichuan western mesa and the Yunnan-Guizhou Plateau.Its average alti- | 尼玛扎西 | 2009 | China Tibetology2009，，2： | 0 |
| 19 | Spatial and Temporal Variations of Blocking and Cyclogenesis in the 1978 / 79 Winter显示文摘Complex empirical orthogonal function (CEOF) and Fourier analyses are applied to 500 hPa geopotential height anomaly for two selected latitude belts in the Northern Hemisphere from Dec 1978 through Feb 1979 based on the ECMWF FGGE Hl-b data. The positive anomalies in the three leading CEOFs for the high-latitude belt mainly show the preferred locations for blocking activity in the North Atlantic, the North Pacific and to the west of the Ural Mountains. The negative anomalies in the three leading CEOFs for the mid-latitude belt mainly show the preferred locations for cyclogenesis in the east coasts of Asia and North America, and the Mediterranean; weak cyclogenesis is also seen in the western United States and off the coasts of Spain and Morocco. The travelling components of the positive anomalies in the high-latitude belt mainly propagate westward, weakening as approaching the east side of some mountain chains while intensifying to the west side. On the contrary, the travelling components of the | Hengyi WengGeophysical Fluid Dynamics Institute, Florida State University, Tallahassee, FL 32306, USA | 1992 | Advances in Atmospheric Sciences1992，9，4： | 0 |
| 20 | Numerical Study for Characteristic Change of Asian Summer Monsoon Circulation and Its Influence Mechanism during the EI Nino Period显示文摘In this paper, the relation between Asian summer monsoon circulation and sea surface temperature anomalies over equatorial central-eastern Pacific is investigated by using a global spectral model. This model has nine layers in the vertical and the model variables are represented in the horizontal as truncated expansions of the surface spherical harmonics with rhomboidal truncation at wave number 15. The model involves comparatively complete physical processes and parameterizations with mountains.Using the above model, two experimental schemes are designed, namely control case and anomalous sea surface temperature case. The above two schemes are respectively integrated for forty days and the simulated results are obtained from the last 30-day averaged simulations.The simulations show that positive SST anomalies over equatorial central-eastern Pacific weakens Indian monsoon circulation,decreases precipitation in Indian sub-continent whereas it intensifies East Asian monsoon circulation and increases | 倪允琪 林元弼 | 1990 | Advances in Atmospheric Sciences1990，7，3： | 0 |
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