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| 1 | Geochemical characteristics of natural gas from mud volcanoes in the southern Junggar Basin显示文摘A number of mud volcanoes exist in the southern Junggar Basin. To date few systematic studies on natural gas geochemistry of mud volcanoes have been conducted in China. In June 1991 and August 2010, the authors investigated the mud volcanoes in the southern Junggar Basin twice, and the mud volcanism weakened gradually as seen from the variations such as the decrease of gas pressure and output, the downthrow and dry up of the mud pool. The volcanic intensity was significantly weaker than that in Taiwan. The natural gas from the mud volcanoes in the southern Junggar Basin has similar geochemical characteristics, indicating the same source or origin. The main component of the mud volcano gas is alkane gas with contents of 91.15%-97.49%, and the gas is high-quality commercial gas since methane dominates in the alkane. The 13C1 values are 49.1‰--40.6‰, which are in accordance with the peak 13C1 frequency of mud volcano gas around the world, and the alkane gas displays positive carbon isotopic series, i.e., 13C1< 13C2< 13C3, suggesting typical thermogenic origin. The helium in the mud volcano gas is typically crust-derived due to the low R/Ra values of 0.011-0.054. The mud volcano gas is coal-derived since the 13C2 values are all greater than 28‰, and C1/C1-4 and 13C1 values are in accordance with those of natural gas derived from the Lower-Middle Jurassic coal-measures. Therefore, alkane gas from mud volcanoes in the southern Junggar Basin is mainly sourced from the Lower-Middle Jurassic coal-measures. | DAI JinXing WU XiaoQi NI YunYan WANG ZeCheng ZHAO ChangYi WANG ZhaoYun LIU GuiXia | 2012 | Science China Earth Sciences2012，55，3： | 13 |
| 2 | An 85mW 14-bit 150MS/s Pipelined ADC with a Merged First and Second MDAC显示文摘A low-power 14-bit 150MS/s analog-to-digital converter(ADC) is presented for communication applications.Range scaling enables a maximal 2-Vp-p input with a single-stage opamp adopted.Opamp and capacitor sharing between the first multiplying digital-to-analog converter(MDAC)and the second one reduces the total opamp power further.The dedicated sample-andhold amplifier(SHA) is removed to lower the power and the noise.The blind calibration of linearity errors is proposed to improve the performance.The prototype ADC is fabricated in a 130 nm CMOS process with a 1.3-V supply voltage.The SNDR of the ADC is 71.3 dB with a 2.4 MHz input and remains 68.5 dB for a 120 MHz input.It consumes 85 mW,which includes 57 mW for the ADC core,11 mW for the low jitter clock receiver and 17 mW for the high-speed reference buffer. | LI Weitao LI Fule YANG Changyi LI Shengjing WANG Zhihua | 2015 | China Communications2015，12，5： | 6 |
| 3 | Discovery of the Dagele Eclogite in East Kunlun,Western China and Its Zircon SHRIMP U-Pb Ages:New Constrains on the Central Kunlun Suture Zone显示文摘Objective Eclogites are important indicators of ancient plate boundaries or paleosuture zones.Despite their great geological significance,very few investigations have been carried out in the Kunlun region.The Central East Kunlun fault zone was believed to be an Early Paleozoic suture zone,but there has been no reliable evidence for this,though studies on ophiolite,granite,and basic granulite indicate that the Early Paleozoic orogeny occurred in the East Kunlun.This work focused on the Dagele eclogites | DU Wei JIANG Changyi Tang Zhongli XIA Mingzhe XIA Zhaode LING Jinlan ZHOU Wei WANG Bangyao | 2017 | Acta Geologica Sinica(English Edition)2017，91，3： | 5 |
| 4 | Identification of marine natural gases with different origin sources显示文摘Kinetic experiments of gas generation for typical samples of marine gas precursors including low-maturity kerogen,residual kerogen and oil as well as dispersed liquid hydrocarbon(DLH)in source rocks were performed by closed system,and the evolution trends of molecular and isotopic compositions of natural gases from different precursors against the maturity(R0%)at laboratory conditions were analyzed.Several diagrams of gas origin were calibrated by using the experimental data.A diagram based on the ratio of normal and isomerous butane and pentane(i/nC4-i/nC5)was proposed and used to identify the origins of the typical marine natural gases in the Sichuan Basin and the Tarim Basin, China.And the maturities of natural gases were estimated by using the statistical relationships between the gaseous molecular carbon isotopic data and maturities(δ13C-R 0 %)with different origins.The results indicate that the molecular and isotopic compositions of simulated gases from different precursors are different from each other.For example,the dryness index of the oil-cracking gas is the lowest;the dryness indices of gases from DLH and kerogen in closed system are almost the same;and the dryness index of gases from residual kerogen is extremely high,indicating that the kerogen gases are very dry;the contents of non-hydrocarbon gases in kerogen-cracking gases are far higher than those in oil-cracking and DLH-cracking gases.The molecular carbon isotopes of oil-cracking gases are the lightest,those of kerogen in closed system and GLH-cracking gases are the second lightest,and those of cracking gases from residual kerogen are the heaviest.The calibration results indicate that the diagrams of ln(C1/C2)-ln(C2/C3)andδ13C2-δ13C3-ln(C2/C3)can discriminate primary and secondary cracking gases,but cannot be used to identify gas origin sources,while the diagram of i/nC4-i/nC5 can differentiate the gases from different precursors.The application results of these diagrams show that gas mixtures extensively exist in China,which involved the gases from multiple precursors and those from different maturity stages.For example,marine gases in the Sichuan Basin involve the mixture of oil-cracking gases and high-over-maturated kerogen gases,while those in the Tarim Basin involve not only the mixture of gases from multiple precursors,but also those from different maturity gases and post-reservoir alternations such as oxidized degradation and gas intrusion processes. | WANG YunPeng 1 ,ZHAO ChangYi 2 ,WANG ZhaoYun 2 ,WANG HongJun 2 ,TIAN Jin 1 ,ZOU YanRong 1 &LIU JinZhong1 1State Key Laboratory of Organic Geochemistry,Guangzhou Institute of Geochemistry,Chinese Academy of Sciences,Guangzhou 510640,China 2Institute of Geology,Research Institute of Petroleum Exploration and Development,PetroChina,Beijing 100083,China | 2008 | Science China Earth Sciences2008，51，S1： | 4 |
| 5 | Photothermal therapy with regulated Nrf2/NF-κB signaling pathway for treating bacteria-induced periodontitis显示文摘Periodontitis is an inflammatory disease initiated by bacterial infection,developed by excessive immune response,and aggravated by high level of reactive oxygen species(ROS).Hence,herein,a versatile metal-organic framework(MOF)-based nanoplatform is prepared using mesoporous Prussian blue(MPB)nanoparticles to load BA,denoted as MPB-BA.The established MPB-BA nanoplatform serves as a shelter and reservoir for vulnerable immunomodulatory drug BA,which possesses antioxidant,anti-inflammatory and anti-bacterial effects.Thus,MPB-BA can exert its antioxidant,anti-inflammatory functions through scavenging intracellular ROS to switch macrophages from M1 to M2 phenotype so as to relieve inflammation.The underlying molecular mechanism lies in the upregulation of phosphorylated nuclear factor erythroid 2-related factor 2(Nrf2)to scavenge ROS and subsequently inhibit the nuclear factor kappa-B(NF-κB)signal pathway.Moreover,MPB-BA also exhibited efficient photothermal antibacterial activity against periodontal pathogens under near-infrared(NIR)light irradiation.In vivo RNA sequencing results revealed the high involvement of both antioxidant and anti-inflammatory pathways after MPB-BA application.Meanwhile,micro-CT and immunohistochemical staining of p-Nrf2 and p-P65 further confirmed the superior therapeutic effects of MPB-BA than minocycline hydrochloride.This work may provide an insight into the treatment of periodontitis by regulating Nrf2/NF-κB signaling pathway through photothermal bioplatform-assisted immunotherapy. | Yujuan Tian Ying Li Jialin Liu Yi Lin Jian Jiao Bo Chen Wanmeng Wang Shuilin Wu Changyi Li | 2022 | Bioactive Materials2022，7，3： | 3 |
| 6 | SAR motion compensation based on the correction of residual attitude errors显示文摘As residual attitude errors are likely to affect the synthetic aperture radar (SAR) imaging, this paper presents a SAR motioncompensation algorithm based on the correction of residual attitude errors. The existing methods all use the antenna stableplatform to correct the attitude errors, and then compensate the trajectory deviations in the following imaging process. Besidescompensating the trajectory deviations, the modified method of this paper also considers the influence of residual attitude er-rors on the SAR imaging, and can compensate both the trajectory deviations and the residual attitude errors. Compared withthe existing methods, the modified method in this paper can more precisely compensate the imperfect motion on the SAR im-aging, especially good for the SAR system with a small platform, near operating distance and a narrow antenna beam. Such asystem causes severe residual attitude errors and needs to consider the influence of antenna beam pointing errors on the imag-ing. The validity of the modified method presented by this paper is demonstrated by the result of the experiment. | NI Chong WANG YanFei XU XiangHui ZHOU ChangYi | 2011 | Science China(Physics,Mechanics & Astronomy)2011，54，10： | 3 |
| 7 | A super-resolution algorithm for synthetic aperture radar based on modified spatially variant apodization显示文摘The existing spatially variant apodizations(SVAs) either cannot depress the sidelobes effectively or reduce the energy of the mainlobe.To improve this,a modified SVA(MSVA) is put forward in this paper,which expands the traditional filter from 3-taps to 5-taps and sets relevant parameters according to different sampling rates to get the excellent result that satisfies constrained optimization theory.A modified super-SVA is also presented,which compares the result after the iteration with the original signal and makes the one whose amplitude is smaller as the initial value of the next iteration.This method can eliminate the sidelobes produced by the intermediate operation,so that the following bandwidth extrapolation is more available.Super-MSVA is presented based on the modified SVA and modified super-SVA,which is suitable for any Nyquist sampling rate,can extrapolate the signal bandwidth many times through iteration with a commensurate improvement in resolution,as demonstrated by the result of the experiment. | NI Chong WANG YanFei XU XiangHui ZHOU ChangYi CUI PengFei | 2011 | Science China(Physics,Mechanics & Astronomy)2011，54，2： | 2 |
| 8 | The change of magnetic inclination angles associated with the X3.4 flare on December 13,2006显示文摘Recent studies showed a consistent pattern of changes in the sunspot structure associated with major flares: part of the peripheral penumbral regions vanishes during flares, and meanwhile, the umbral cores and/or inner penumbral regions are darkened. To understand the underlying physics of these observations, we compare the magnetic inclination angle in the decayed peripheral and the enhanced inner penumbral regions before and after the 4B/X3.4 flare of 2006 December 13 by using the high-resolution vector magnetograms from Hinode. We find that the mean inclination angle in the decayed penumbra increases after the flare while that in the enhanced penumbra near flaring neutral line decreases. The result confirms the previous idea that two components of a δ sunspot become connected after flares. As a result of new connection, peripheral penumbral fields change from a more inclined to a more vertical configuration and transverse fields in umbral core and inner penumbral regions increase substantially (Liu et al. 2005). The flare-associated changes of Doppler width as well as other parameters (the transverse field strength, continuum intensity and filling factor) are also presented. | LI YiXuan JING Ju TAN ChangYi WANG HaiMin | 2009 | Science China(Physics,Mechanics & Astronomy)2009，52，11： | 2 |
| 9 | Determining the Main Gas-generation Phase of Marine Organic Matters in Different Occurrence States using the Kinetic Method显示文摘摘要:这份报纸用运动方法探查海洋的器官的冰铜的主要煤气产生的阶段的决心。海洋的有机物的主要煤气产生的阶段被典型海洋的有机物的获得的运动参数计算的地质的历史上联合煤气的产生收益和率决定(水库油,剩余沥青,低成熟的 kerogen 和剩余 kerogen )在由 EasyRo (%)方法的中国和国外和成熟。这里,主要煤气产生的阶段为类型作为 Ro%=1.4%2.4% 被决定我 kerogen,为低成熟的类型 II kerogen 的 Ro%=1.53.0% ,为剩余 kerogen 的 Ro%=1.42.8% ,为剩余沥青的 Ro%=1.53.2% 和为水库油裂开的 Ro%=1.63.2% 。对从模仿的系统的坦诚和天然气产生的死了的线的主要煤气产生的阶段的影响也被讨论。结果显示模拟系统的坦诚在计算主要煤气产生的阶段上有明确的影响。类型 II kerogen 的主要煤气产生的阶段是在一个开的系统的 Ro%=1.43.1% ,它在一个封闭系统是比那早的。根据我们的结果,天然气产生的死了的线为类型作为 Ro=3.5% 被决定我 kerogen,为类型 II kerogen 的 Ro=4.44.5% 和为海洋的油的 Ro=4.6% 。初步的应用被介绍作为一个例子拿西南的 Tarim 盆。 | WANG Yunpeng ZHAO Changyi WANG Zhaoyun WANG Hongjun ZOU Yanrong LIU Jinzhong ZHAO Wenzhi LIU Dehan LU Jialan | 2008 | Acta Geologica Sinica(English Edition)2008，82，1： | 2 |
| 10 | Profiling of 95 MicroRNAs in Pancreatic Cancer Cell Lines and Surgical Specimens by Real-Time PCR Analysis显示文摘 | Yuqing Zhang Min Li Hao Wang William E. Fisher Peter H. Lin Qizhi Yao Changyi Chen | 2009 | World Journal of Surgery2009，，4： | 1 |
| 11 | Study of chloride binding and diffusion in GGBS concrete显示文摘 | Luo Rui Cai Yuebo Wang Changyi | 2003 | Cement and Concrete Research2003，33，1： | 1 |
| 12 | Characteristics and origin of natural gases in the Kuqa Depression of Tarim Basin, NW China显示文摘 | Yanrong Zou Changyi Zhao Yunpeng Wang | 2006 | Organic Geochemistry2006，37，： | 1 |
| 13 | Chlamydia heat shock protein 60 decreases expressionof endothelial nitric oxide synthase in human and porcine coronary artery endothelial cells显示文摘 | Changyi Chen Hong Chai Xinwen Wang | 2009 | Cardiovascu- lar Research2009，83，4： | 1 |
| 14 | Characteristics and origin of natural gases in the Kuqa Depression of Tarim Basin, NW China显示文摘 | Yan-Rong Zou Changyi Zhao Yunpeng Wang Wenzhi Zhao Ping’an Peng Yanhua Shuai | 2005 | Organic Geochemistry2005，，： | 1 |
| 15 | Profiling of 95 MicroRNAs in Pancreatic Cancer Cell Lines and Surgical Specimens by Real-Time PCR Analysis显示文摘 | Yuqing Zhang Min Li Hao Wang William E. Fisher Peter H. Lin Qizhi Yao Changyi Chen | 2009 | World Journal of Surgery2009，，4： | 1 |
| 16 | Kinetics of hydrocarbon gas generation from marine kerogen and oil:Implications for the origin of natural gases in the Hetianhe gasfield,Tarim Basin,NW China显示文摘 | Wang Yunpeng Wang Zhaoyun Zhao Changyi | 2007 | Journal of Petroleum Geology2007，30，4： | 1 |
| 17 | Healthcare-associated outbreak due to pan-drug reslstantAcinetobacter baumannii in a surgical intensive care unit显示文摘 | Wang SH ShengWH ChangYY | 2003 | J Hosp Infect2003，53，2： | 1 |
| 18 | Plasma miR-126 Is a Potential Biomarker for Early Prediction of Type 2 Diabetes Mellitus in Susceptible Individuals显示文摘 | Tao Zhang Chunfang Lv Liling Li Sihan Chen Shenglin Liu Changyi Wang Bing Su Thean Hock Tang | 2013 | BioMed Research International2013，，： | 1 |
| 19 | Dexmedetomidineattenuates repeated propofol exposure -induced hip-pocampal apoptosis,PI3K/Akt/Gsk -3(3 signaling disrup-tion ,and juvenile cognitive deficits in neonatal rats 显示文摘 | Wang Y Changyi WU Han B | 2016 | Mol Med Rep2016，14，1： | 1 |
| 20 | Regional geoehemical secondary negative anomalies and their significance显示文摘 | SHI CHANGYI WANG CAIFANG | 1995 | Geochemical Exploration1995，，55： | 1 |
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