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| 1 | A huge oceanic-type UHP metamorphic belt in southwestern Tianshan, China: Peak metamorphic age and P-T path显示文摘Recent progress in the study of the UHP metamorphic belt in southwestern Tianshan,China,is summarized in this paper.This about 80-km-long and over 10-km-wide UHP belt has been recognized by the discovery of coesite,coesite pseudomorphs and other UHP minerals.It is the largest oceanic-type UHP metamorphic belt reported so far.It has formed due to northward subduction of the Tianshan Paleo-Ocean.U-Pb dating of metamorphic rims of zircons from a coesite-bearing garnet-phengite schist yields a peak UHP metamorphic ages of 320±3.7 Ma.Combined with ages of 233–226 Ma obtained from rims of zircons from retrograded eclogites,a long retrograde metamorphic evolution(>70 Ma)has been revealed.According to phase equilibria modeling,the P-T paths of both coesite-bearing eclogites and garnet-phengite schists are characterized by thermal relaxation,i.e.,the metamorphic temperature peak lags behind the pressure peak,indicating that the UHP rocks experienced slow and long heating and decompression during exhumation in the subduction channel.On the basis of the field observation that a small amount of eclogite lenses is wrapped in large volumes of metapelites,and the similar P-T paths of both rock types,we propose that the exhumation of the UHP eclogites from southwestern Tianshan,China,may have resulted from the exhumation of large volumes of low-density metapelites,which carried the denser eclogites to the Earth’s surface. | ZHANG LiFei DU JinXue Lü Zeng YANG Xin GOU LongLong XIA Bin CHEN ZhenYu WEI ChunJing SONG ShuGuang | 2013 | Chinese Science Bulletin2013,58,35: | 19 |
| 2 | Combinations of Hd2 and Hd4 genes determine rice adaptability to Heilongjiang Province, northern limit of China显示文摘Heading date is a key trait in rice domestication and adaption, and a number of quantitative trait loci(QTLs)have been identified. The rice(Oryza sativa L.) cultivars in the Heilongjiang Province, the northernmost region of China,have to flower extremely early to fulfill their life cycle.However, the critical genes or different gene combinations controlling early flowering in this region have not been determined. QTL and candidate gene analysis revealed that Hd2/Ghd7.1/Os PRR37 plays a major role in controlling rice distribution in Heilongjiang. Further association analysis with a collection of rice cultivars demonstrated that another three major QTL genes(Hd4/Ghd7, Hd5/DTH8/Ghd8, and Hd1)also participate in regulating heading date under natural long day(LD) conditions. Hd2/Ghd7.1/Os PRR37 and Hd4/Ghd7 are two major QTLs and function additively. With the northward rice cultivation, the Hd2/Ghd7.1/Os PRR37 and Hd4/Ghd7 haplotypes became non-functional alleles. Hd1 might be non-functional in most Heilongjiang rice varieties,implying that recessive hd1 were selected during local rice breeding. Non-functional Hd5/DTH8/Ghd8 is very rare, but constitutes a potential target for breeding extremely early flowering cultivars. Our results indicated that diverse genetic combinations of Hd1, Hd2, Hd4, and Hd5 determined the different distribution of rice varieties in this northernmost province of China. | Xiufeng Li Huazhao Liu Maoqing Wang Hualong Liu Xiaojie Tian Wenjia Zhou Tianxiao Lü Zhenyu Wang Chengcai Chu Jun Fang Qingyun Bu | 2015 | Journal of Integrative Plant Biology2015,57,8: | 13 |
| 3 | Hydrochemical characteristics and recharge sources of Lake Nuoertu in the Badain Jaran Desert显示文摘We present a case study of physical and chemical indicators and isotope characteristics of Lake Nuoertu,one of the largest and deepest lakes of the Badain Jaran Desert.We analyze the concentrations of eight ions,total dissolved solids,and stable isotope composition of the lake and groundwater,as well as radioactive isotope tritium concentration in groundwater.The results show that annual and seasonal variations of the physical and chemical characteristics of Lake Nuoertu water are significantly greater than those of groundwater.The lake is uniformly mixed in the horizontal and vertical directions,and the hydrochemical types of the lake at different depths are consistent for Na–Cl–CO3–(SO4).Stable isotope composition of the lake and groundwater at Nuoertu is distributed along the local evaporation line(EL)slope,which is less than the slope of the global meteoric water line.The comparatively small slope shows the characteristic strong evaporation in the study area.Lake water isotopes are mostly in the upper right corner of the EL,whereas groundwater is mostly in the lower left corner.The main recharge source of Nuoertu lake water is groundwater,in combination with lake water and groundwater level change.The age of tufa springs around Nuoertu is about75–80 a,which shows that the initial recharge source of the lake is a mix between modern and 1952 or older;however,further research is required. | Yue Wu Naiang Wang Liqiang Zhao Zhenyu Zhang Li Chen Ying Lu Xiaonan L Jinlong Chang | 2014 | Chinese Science Bulletin2014,59,9: | 12 |
| 4 | Microelectronics-embedded channel bridging and signal regeneration of injured spinal cords显示文摘Due to the dificulty in spinal cord regeneration with biological methods,the microelectronic neural bridge,a new concept based on microelectronic technology,is presented.The microelectronic system has been realized in the forms of hybrid and integrated circuits.The integrated circuits forneural signal detection,stimulation,and regeneration are realized in a CMOS process.In animal experiments with 100 toads,48 rats,and 3 rabbits,nerve signals have been successfully detected from spinal cords and sciatic nerves,and functional electrical stimulation has been carried out for spinal cords and sciatic nerves.When the microelectronic system is bridged between the controlling and stimulated nerve,the relevant motion of legs and nerve signal waveforms,which are stimulated by the evoked or spontaneous nerve signal through such a system,have been observed.Therefore,the feasibility of the presented method was demonstrated. | Zhigong Wang Xiaosong Gu Xiaoying Lǔ Zhenglin Jiang Wenyuan Li Guangming Lǔ Yufeng Wang Xiaoyan Shen Xintai Zhao Huiling Wang Zhenyu Zhang Hongmei Shen Yang Wu Weixing Shen Jingyang Zhang Dong Chen Xiaoyi Mao Huaxiang Shen | 2009 | Progress in Natural Science:Materials International2009,19,10: | 5 |
| 5 | Invasive species in China-an overview显示文摘 | YAN X ZHENYU L GREGG W P | 2001 | Biodiversity & Conservation2001,10,8: | 1 |
| 6 | A Dominance Tree and Its Application in Evolutionary Multi-objective Optimization显示文摘 | Shi Chuan Yan Zhenyu Kevin L | 2009 | Information Sciences2009,179,20: | 1 |
| 7 | Preparation of activated carbon honeycomb monolith directly from coal显示文摘 | Liu L S Liu Zhenyu Huang Z Q | 2006 | Car bon2006,44,8: | 1 |
| 8 | The improvement of weathering resistance by increasing P contents in cast strips of low carbon steels 显示文摘 | Guoping Z Zhenyu L Yiqing Q | 2009 | Materials & Design2009,30,10: | 1 |
| 9 | Apolipoprotein B/ apolipoprotein A1 ratio and non-high-density lipoprotein cholesterol : Predictive value for CHD severity and prognostic utility in CHD patients显示文摘 | LITING P GUOPING L ZHENYUE C | 2015 | Herz2015,40,1: | 1 |
| 10 | Study onfriction and wear behavior of polyphenylene sulfide compos-ites reinforced by short carbon fibers and sub-micro TiO2par-ticles显示文摘 | Jiang Zhenyu Gyurova L A Schlarb A K | 2008 | Composites Science and Technology2008,68,34: | 1 |
| 11 | Stevioside protects LPS- induced acute lung injury in mice显示文摘 | YINGKUN N ZHENYU W JING L | 2013 | Inflammation2013,36,1: | 1 |
| 12 | Transverse Electric and Transverse Magnetic Active Intersubband Transitions in CaAs/AlGaAs Step Quantum Well显示文摘We have observed transverse electric(TE)and transverse magnetic(TM)intersubband infrared absorption peaks in GaAs/AlGaAs step multiquantum wells(SMQW).The energy splitting between TE and TM is 13meV.The high conversion efficiency of second harmonic signal due to intersubband transition in the GaAs/AlGaAs SMQW with a waveguiding surface-emitting structure have been obtained.The second harmonic generation(SffG)obeys wave vector conservation and propagates perpendicular to the waveguide surface which shows that the nonlinear polarization field for SHG may be TE as well as TM active.The existence of strong surface-emitting second harmonic signal also offers solid evidence of TE polarization active intersubband transition in GaAs/AlGaAs SMQW structure. | CUI Dafu CHEN Zhenghao YUAN Zhenyu ZHOU Yueliang LÜ Huibin YANG Guozhen | 1994 | Chinese Physics Letters1994,11,12: | 0 |