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| 1 | A review on developments in the electrical structure of craton lithosphere显示文摘Cratons have a long history of evolution.In this paper,applications of the magnetotelluric method used in the study of craton lithosphere over the past 30 years were reviewed,examining case studies of cratons in North America,South America,Asia,Australia,and Africa.The nuclei of the Archean cratons,for example the Kalahari Craton and Rae Craton,are usually characterized by thick and highly resistive lithospheric roots.During or after the formation of the cratons,tectonothermal events,such as collision,mantle plume,and asthenosphere upwelling led to the formation of high-conductivity zones in the craton lithosphere,which could be attributed to the increased hydrogen content(of nominally anhydrous minerals),higher iron content,and formation of graphite films or sulfides along the grain boundary of minerals.These conductive zones are characterized by resistivity discontinuities in craton lithosphere.In particular,the conductive zones include(1)large-scale lithospheric mantle conductors beneath the Slave Craton,Gawler Craton,and central part of North China Craton(Trans-North China Orogen);(2)near-vertical high-conductivity zone associated with the fossil subduction zone beneath the Dharwar Craton and Slave Craton;and(3)regional lateral electrical discontinuities,such as a conductive anomaly under the Bushveld Complex of the Kaapvaal Craton.The eMoho refers to the electrical discontinuity in the crust-mantle boundary.In existing research,this has been detected under the condition of extremely high lithospheric resistivity with only a slight decrease in the lower crust,and in the case of a very thin conductive lower crust or the lack thereof.In the resistivity model,the unique'mushroom-like'lower crust-lithosphere mantle conductor and very thin lower crust layer of the North China Craton may represent lithosphere destruction and/or thinning.We also find that some of the cratons are still not well understood.Therefore,extensive three-dimensional inversion and joint interpretation of geochemical,geophysical,and geologic data are necessary to understand the tectonic evolutionary history of craton lithosphere. | Xiangyun HU Wule LIN Wencai YANG Bo YANG | 2020 | Science China Earth Sciences2020,63,11: | 3 |
| 2 | Overexpression of a Panax ginseng tonoplast aquaporin alters salt tolerance, drought tolerance and cold acclimation ability in transgenic Arabidopsis plants显示文摘 | Yanhui Peng Wuling Lin Weiming Cai Rajeev Arora | 2007 | Planta2007,,3: | 1 |
| 3 | Hydrogen peroxide mediates defence responses induced by chitosans of different molecular weights in rice显示文摘 | LIN Wuling HU Xiangyang ZHANG Wenqing | 2005 | Journal of Plant Physiology2005,162,8: | 1 |
| 4 | BEHAVIORAL HEARING SCREENING OF INFANTS显示文摘It is estimated that most of the deaf children have some residual hearing. If these deaf children can be identified early, fit with hearing aids early,andtrained to speak early,they may be able to join the mainstream of hearing society.There are about 1. 16 million deaf children in China,and the number is increasingby 20 to 40 thousand each year. Some objective screening methods,such as auditorybrainstem response and otoacoustic emissions, can be more expensive than usingtrained people to perform behavioral screening. A portable “Behavioral infantScreening Audiometer”was designed by the authors. This audiometer can deliver different frequency and itensity sounds to the infants. The operator judges whether theinfant’s hearing is normal by his or her behavioral response,typically a head turn.Infants from three city communities in Beijing were screened in the communityclinics. The only criterion used for screening was that the inrants be between the ageof 26 and 36 weeks old. A total of 520 inrants were screened,and 43(8.3%) of themfailed. It took an average of 3 minutes to test an infant. Follow-up otoscope,auditory brainstem response audiometry and impedance audiometry in the First ClinicalCollege of Beijing Medical University on these 43 infants showed that 6 (1.15 % ) ofthem had a hearing loss and 37 of them had normal hearing. Follow-up on abovementioned tests were also performed on 50 infants from a control group that hadPassed the initial screening. None of them had hearing loss. The sensitivity of thisbehavioral screening was 100% and the speciticity of it was 92.8%. These resultssuggest that behavioral hearing screening is suitable for infants. | Zhengguo Zhang Wuling Zhang Jianming Wang Jinsen Lin(Institute of Basic Medical Sciences,Chinese Academy of Medical SciencesSchool of Basic Medicine,Peking Union Medical CollegeBeijing 100005,China)Xiaomei Ke(First Clinical College of Beijing Medical Uni | 1998 | Chinese Journal of Biomedical Engineering(English Edition)1998,7,1: | 0 |
| 5 | Types and microstructures of pores in shales of the Ordovician Wulalike Formation at the western margin of the Ordos Basin, China显示文摘Shale samples from the Ordovician Wulalike Formation at the western margin of the Ordos Basin are studied to define the types, microstructures and connectivity of pores as well as the relationships between the pore structures and gas content of the samples by using experimental techniques such as high-resolution field emission scanning electron microscopy (FESEM), mercury injection capillary pressure (MICP), low-temperature nitrogen adsorption (LTNA), CO_(2) adsorption, and focused ion beam scanning electron microscopy (FIB-SEM). The results show that the shale has 10 different lithofacies, typical mixed sedimentary characteristics, and poorly developed pores. The reservoir space mainly consists of intercrystalline pores, dissolution pores, intergranular pores, and micro-fissures, with organic pores occasionally visible. The pore size is mostly within 0.4–250 nm range but dominated by micropores and mesopores less than 20 nm, with pore numbers peaking at pore sizes of 0.5 nm, 0.6 nm, 0.82 nm, 3 nm, and 10 nm, respectively. The pores are poorly connected and macropores are rarely seen, which may explain the low porosity and low permeability of the samples. Samples with high content of organic matter and felsic minerals are potential reservoirs for oil and gas with their favorable physical properties and high connectivity. The pores less than 5 nm contribute significantly to the specific surface area and serve as important storage space for adsorbed gas. | Wuling Mo Min Wang Fangwen Chen Zhengliang Huang Ying Li Yu Yan Ren Jiang Tong Lin Junfeng Cui | 2023 | Energy Geoscience2023,4,3: | 0 |