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| 1 | Geochronology of Baogutu porphyry copper deposit in Western Junggar area, Xinjiang of China显示文摘Baogutu copper deposit in Western Junggar area is a mesoscopic porphyry deposit found in recent years. Study on its geochronology will help further understand ore genesis and regional ore-forming pattern. A series of small quartz-diorite and granodiorite stocks outcrop at Baogutu area, numbered I―X according to their size. A detailed exploration on Number V stock confirmed it as a mesoscopic scale copper deposit, and various exploration work has been carried out on other stocks with ore-forming evidence. This paper studies geochronology of Number V stock using zircon SHRIMP U-Pb and single mineral K-Ar method. Twenty-five SHRIMP ages yield two 206Pb/238U weighed mean ages of 335.6 ± 7.8 Ma and 311.4 ± 3.3 Ma respectively. The older date is considered to be inherited zircon from either surrounding rock tuff or deep granitoid batholith, whereas the younger date is the formation age of ore-bearing intrusion. K-Ar ages of ore-forming biotites, 296.0 ± 3.7 Ma and 297.3 ± 3.8 Ma, in combination with Re-Os age of molybdenite, 310 Ma, confirm the ore-forming age of 310-296 Ma. Granophyre and dioritic porphyrite dikes cut Number V stock and their K-Ar ages range from 278 to 240 Ma, which confine the lower boundary of the mineralization. The framework of Baogutu ore-forming geochrono-logy can be established based on these data. | LIU YuLin GUO LiShuang LIU YuDe SONG HuiXia SONG Biao ZHANG Rui XU FaJun ZHANG YunXiao | 2009 | Science China Earth Sciences2009，52，10： | 33 |
| 2 | Polymorphisms of chemokine receptors and its ligand alleles influencing genetic suscepti-bity to HIV-1 infection in eight ethnic groups in Chinese mainland显示文摘Limited genetic information is available concerning the polymorphisms of HIV-1 resistant genes in indigenous Chinese populations. The aim of this study is to identify the allelic frequencies of the chemokine and chemokine receptor genes in the Chinese mainland. Genomic DNA samples extracted from whole blood of 2318 subjects were analyzed by using PCR or PCR/restriction fragment length polymorphism (RFLP) assays, and further confirmed by direct DNA sequencing. Higher frequencies of mutant CCR2-64I (19.15%-28.79%) and SDF1-3’A (19.10% -29.86%) alleles were found in subjects of 8 ethnic groups in the Chinese mainland. In contrast, the △32 mutation in CCRS gene occurs at a very low frequency (0.0016, n=1287) in Han population. A relatively high frequency of CCR5-wt/△32 heterozygotes was observed in Uygurian and Mongolian populations. No A32 mutation allele was detected in Tibetan and other 4 ethnic groups in Yunnan Province. There was no CCR5-m303 mutation in subjects of any ethnic group in the Chinese | WANG Fusheng JIN lei LIU Mingxu HONG Weiguo SHI Hong LEI Zhouyun WANG Jiming DU Qingyou HOU Jing ZHANG Bing JIANG Jiandong WANG Yue LI Yueqi XU Anlong HUANG Honglian LIU Fajun | 2001 | Chinese Science Bulletin2001，46，12： | 6 |
| 3 | A rapid and accurate direct measurement method of underground coal seam gas content based on dynamic diffusion theory显示文摘Coal seam gas content is frequently measured in quantity during underground coal mining operation and coalbed methane(CBM)exploration as a significant basic parameter.Due to the calculation error of lost gas and residual gas in the direct method,the efficiency and accuracy of the current methods are not inadequate to the large area multi-point measurement of coal seam gas content.This paper firstly deduces a simplified theoretical dynamic model for calculating lost gas based on gas dynamic diffusion theory.Secondly,the effects of various factors on gas dynamic diffusion from coal particle are experimentally studied.And sampling procedure of representative coal particle is improved.Thirdly,a new estimation method of residual gas content based on excess adsorption and competitive adsorption theory is proposed.The results showed that the maximum error of calculating the losing gas content by using the new simplified model is only 4%.Considering the influence of particle size on gas diffusion law,the particle size of the collected coal sample is below 0.25 mm,which improves the measurement speed and reflects the safety representativeness of the sample.The determination time of gas content reduced from 36 to 3 h/piece.Moreover,the absolute error is 0.15–0.50 m^3/t,and the relative error is within 5%.A new engineering method for determining the coal seam gas content is developed according to the above research. | Yanwei Liu Yang Du Zhiqiang Li Fajun Zhao Weiqin Zuo Jianping Wei Hani Mitri | 2020 | International Journal of Mining Science and Technology2020，30，6： | 6 |
| 4 | Synthesis and anion recognition of neutral receptors based on multiamide calix[4]arene显示文摘Two multiamide calyx[4].arenas(5,6)were synthesized and characterized by IR,1H NMR,MS and elemental analysis.The binding properties of receptors with some anions (p-O2NphOpO2-3,p-O2NphO-,H2PO-4,Ac-,CI-,Br- and I-)Were studied by UV-Vis spectra.The results indicate that the tetraamide calix[4]arenas (5,6) have a good selectivity to the anions containing aromatic ring (p-O2NphOpO2-3,p-O2NphO-).The 1:1 complexes between host and guest were formed through multiple hydrogen bonding and π-π interactions.The hosts 5 and 6 also show a definite binding ability for the anions (H2PO-4,Ac-,CI-) that have no ultraviolet absorption,which provides a simple method of spectrum detection for these anions. | LIU Shunying WANG Fajun WEI Lanhua XIAO Wang MENG Lingzhi HE Yongbing | 2004 | Science China Chemistry2004，47，2： | 2 |
| 5 | Effects of addition of anka rice on the qualities of low-nitrite Chinese sausages显示文摘 | LIU Dengcheng WU Shangwei TAN Fajun | 2010 | Food Chemistry2010，118，2： | 1 |
| 6 | Origin of hydrogen sulfide in coal seams in China 显示文摘 | Liu Mingju Deng Qigen Zhao Fajun | 2011 | Safety Science2011，，： | 1 |
| 7 | Influence of parameters on light propagation dynamics in optically induced planar waveguide arrays显示文摘The diffraction and refraction of light beam in optical periodic structures can be determined by the photonic band-gap structures of spatial frequency.In this paper,by employing the equation governing the nonlinear light propagations in photorefractive crystals,we study the photonic band-gap structures, Bloch modes,and light transmission properties of optically induced planar waveguide arrays.The relationship between the photonic band-gap structures and the light diffraction characteristics is discussed in detail.Then the influence of the parameters of planar waveguide arrays on the band-gaps structures,Bloch modes,and linear light transmissions is analyzed.It is revealed that the linear light transmission properties of waveguide arrays are tightly related to the diffraction relationships determined by band-gap structures.And the Bloch modes corresponding to different transmission bands can be excited by different excitation schemes.Both the increases of the intensity and the period of the array writing beam will lead to the broadening of the forbidden gaps and the concentration of the energy of the Bloch modes to the high-index regions.Furthermore,the broadening of the forbidden gaps will lead to separation and transition between the Bloch modes of neighboring bands around the Bragg angle.Additionally,with the increase of the intensity of the array writing beams,the influences from light intensity will tend to be steady due to the saturation of the photorefractive effect. | LIU Sheng ZHANG Peng XIAO FaJun YANG DeXing ZHAO JianLin | 2009 | Science China(Physics,Mechanics & Astronomy)2009，52，5： | 0 |
| 8 | Study on the Crustal Velocity Model of Xinjiang and Its Subareas显示文摘In this paper,we firstly analyze the '3,400 travel time table 'used for a long time in Xinjiang Seismological Network to obtain the velocity structure models in accord with the table by fitting. Then we fit the velocity of all seismic phases recorded in Xinjiang region in January 2009 ~ December 2013. Simulation analysis is done on the reliability and stability of the velocities,and a concept is proposed for building subarea crustal velocity models according to partitioning of seismic cluster regions. The crustal velocity model suitable for the Yutian area is fitted with the data of all phases of seismic events within a radius of 1°around the 2014 Yutian M_S7.3 earthquake since January 2009,and the model is applied to the relocation of the Yutian M_S7.3 earthquake and determination of focal depths of the earthquake sequence. | Chen Xiangjun Shangguan Wenming Song Xiuqing Wang Jun Liu Shuangqing Miao Fajun Zhu Yuanqing | 2014 | Earthquake Research in China2014，28，4： | 0 |
| 9 | Study on the Precise Location of the Xinjiang Yutian M_S7.3 Earthquake显示文摘The seismic waveform of the Yutian MS7.3 earthquake,Xinjiang on February 12,2014 was recorded clearly and completely by the Digital Seismic Networks of Xinjiang,Qinghai,Tibet,and Xinjiang Hotan array,so the method of joint location by regional seismic network and seismic array can be used to accurately determine the earthquake source location.The following technologies were used in the process of location:(1) We selected seismic stations equally located around the epicenter of the MS7.3 earthquake with an average interval of about 15 degrees in the initial location.(2) The recording waveforms of Yutian seismic station were rotated to the radial and tangential directions to precisely obtain the arrival time of S-waves to determine the epicentral distance.(3) The velocity model was used in the determination of location of the epicenter,based on the historical records of earthquakes in the area within a radius of 1.0° from the source as the center,and the velocity model is obtained after re-fitting and calibration.(4) Based on the waveform records of the Hotan seismic array,the method of waveform beaming was used to determine the azimuths and perform the correction of the epicenter location with these azimuths.(5) The deterministic method was used to measure the source depth.Finally,it is concluded that the Yutian MS7.3 main shock hypocenter location is 36.197°N,82.467°E,focal depth 12 km and original time 17:19:48.2 p.m.February 12,2014. | Zhan Xiaoyan Song Xiuqing Chen Xiangjun Wang Jun Miao Fajun Liu Shuangqing Zhu Yuanqing | 2015 | Earthquake Research in China2015，29，1： | 0 |
| 10 | Focal Depth Determination of the 2014 Yutian M_S7.3 Earthquake Sequence,Xinjiang显示文摘An M_S7.3 earthquake occurred on February 12,2014 in Yutian County,Xinjiang Uygur Autonomous Region,which was followed by a series of aftershocks. This paper calculates the depth of the M_S7.3 earthquake sequence by using the deterministic approach with the seismic phase data from the catalog database of the China Earthquake Networks Center,combined with original seismic wave records from the Digital Seismic Network Center of the Earthquake Administration of Xinjiang Uygur Autonomous Region. | Song Xiuqing Miao Fajun Liu Shuangqing Chen Xiangjun Wang Jun Zhu Yuanqing | 2014 | Earthquake Research in China2014，28，4： | 0 |
| 11 | Augmenting photoluminescence of monolayer MoS_(2) using high order modes in a metal dimer-on-film nanocavity显示文摘Plasmonic particle-on-film nanocavities,supporting gap modes with ultra-small volume,provide a great solution to boost light–matter interactions at the nanoscale.In this work,we report on the photoluminescence(PL)enhancement of monolayer MoS_(2) using high order modes of an Au nanosphere dimer-on-film nanocavity(DoFN).The high order plasmon modes,consisting of two bonding quadrupoles in the dimer and their images in the Au film,are revealed by combining the polarization-resolved scattering spectra with the numerical simulations.Further integrating the monolayer MoS_(2) into the DoFN,these high order modes are used to enhance PL intensity through simultaneously boosting the absorption and emission processes,producing a 1350-fold enhancement factor.It opens an avenue to enhance the light–matter interaction with high order plasmon modes and may find applications in future optoelectronics and nanophotonics devices. | Shiyin Cao Liping Hou Qifa Wang Chenyang Li Weixing Yu Xuetao Gan Kaihui Liu Malin Premaratne Fajun Xiao Jianlin Zhao | 2021 | Photonics Research2021，9，4： | 0 |
| 12 | Optical colorimetric LiTaO_(3)wafers for highprecision lithography on frequency control of SAW devices显示文摘Surface acoustic wave(SAW)resonators based on lithium tantalate(LT,LiTaO_(3))wafers are crucial elements of mobile communication filters.The use of intrinsic LT wafers typically brings about low fabrication accuracy of SAW resonators due to strong UV reflection in the lithography process.This hinders their resonance frequency control seriously in industrial manufacture.LT doping and chemical reduction could be applied to decrease the UV reflection of LT wafers for high lithographic precision.However,conventional methods fail to provide a fast and nondestructive approach to identify the UV performance of standard single-side polished LT wafers for highprecision frequency control.Here,we propose a convenient on-line sensing scheme based on the colorimetry of reduced Fe-doped LT wafers and build up an automatic testing system for industrial applications.The levels of Fe doping and chemical reduction are evaluated by the lightness and color difference of LT-based wafers.The correlation between the wafer visible colorimetry and UV reflection is established to refine the lithography process and specifically manipulate the frequency performance of SAW resonators.Our study provides a powerful tool for the fabrication control of SAW resonators and will inspire more applications on sophisticated devices of mobile communication. | MING HUI FANG YINONG XIE FANGQI XUE ZHILIN WU JUN SHI SHENG YU YANG YILIN LIU ZHIHUANG LIU HSIN CHI WANG FAJUN LI QING HUO LIU JINFENG ZHU | 2024 | Photonics Research2024，12，2： | 0 |
| 13 | Status epilepticus increases mature granule cells in the molecular layer of the dentate gyrus in rats显示文摘Enhanced neurogenesis in the dentate gyrus of the hippocampus following seizure activity, especially status epilepticus, is associated with ectopic residence and aberrant integration of newborn granule cells. Hilar ectopic granule cells may be detrimental to the stability of dentate circuitry by means of their electrophysiological properties and synaptic connectivity. We hypothesized that status epilepticus also increases ectopic granule cells in the molecular layer. Status epilepticus was induced in male Sprague-Dawley rats by intraperitoneal injection of pilocarpine. Immunostaining showed that many doublecortin-positive cells were present in the molecular layer and the hilus 7 days after the induction of status epilepticus. At least 10 weeks after status epilepticus, the estimated number of cells positive for both prospero homeobox protein 1 and neuron-specific nuclear protein in the hilus was significantly increased. A similar trend was also found in the molecular layer. These findings indicate that status epilepticus can increase the numbers of mature and ectopic newborn granule cells in the molecular layer. | Zhaoliang Liang Fei Gao Fajun Wang Xiaochen Wang Xinyu Song Kejing Liu Ren-Zhi Zhan | 2013 | Neural Regeneration Research2013，8，7： | 0 |
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