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| 1 | A proposed surface resistance model for the Penman-Monteith formula to estimate evapotranspiration in a solar greenhouse显示文摘Greenhousing is a technique to bridge season gap in vegetable production and has been widely used worldwide. Calculation of water requirement of crops grown in greenhouse and determination of their irrigation schedules in arid and semi-arid regions are essential for greenhouse maintenance and have thus attracted increased attention over the past decades. The most common method used in the literature to estimate crop evapotranspiration(ET) is the Penman-Monteith(PM) formula. When applied to greenhouse, however, it often uses canopy resistance instead of surface resistance. It is understood that the surface resistance in greenhouse is the result of a combined effect of canopy restriction and soil-surface restriction to water vapor flow, and the relative dominance of one restriction over another depends on crop canopy. In this paper, we developed a surface resistance model in a way similar to two parallel resistances in an electrical circuit to account for both restrictions. Also, considering that wind speed in greenhouse is normally rather small, we compared three methods available in the literature to calculate the aerodynamic resistance, which are the r_a^1 method proposed by Perrier(1975a, b), the r_a^2 method proposed by Thom and Oliver(1977), and the r_a^3 method proposed by Zhang and Lemeu(1992). We validated the model against ET of tomatoes in a greenhouse measured from sap flow system combined with micro-lysimeter in 2015 and with weighing lysimeter in 2016. The results showed that the proposed surface resistance model improved the accuracy of the PM model, especially when the leaf area index was low and the greenhouse was being irrigated. We also found that the aerodynamic resistance calculated from the r_a^1 and r_a^3 methods is applicable to the greenhouse although the latter is slightly more accurate than the former. The proposed surface resistance model, together with the r_a^3 method for aerodynamic resistance, offers an improved approach to estimate ET in greenhouse using the PM formula. | GONG Xuewen LIU Hao SUN Jingsheng GAO Yang ZHANG Xiaoxian Shiva K JHA ZHANG Hao MA Xiaojian WANG Wanning | 2017 | Journal of Arid Land2017，9，4： | 12 |
| 2 | Antitumor Activity and Immune Enhancement of Murine Interleukin-23 Expressed in Murine Colon Carcinoma Cells显示文摘cytokine p19 和 IL-12 的 p40 子单元填写了的 Interleukin (IL )-23, ,能从激活的 T 房间提高记忆 T 房间和 IFN- 的生产的增长。它能也在鼠科的模型导致 antitumor 效果。为了推进,在 vivo 评估 antitumor 活动和 IL-23 的有免疫力的改进,鼠科的结肠癌房间 retrovirally,有 mIL-23 基因的 transduced 皮下地被注射(s.c ) 进 BALB/c mice.Survival,时间和肿瘤体积被观察。LDH 版本试金,[3H ]-TdR 加入试金和 ELISA 被用来决定 CTL 活动, splenocytes 的增长和 cytokines 的水平分别地。树枝状的房间(DC ) 的数字被流动 cytometry (FCM ) 分析。Colon26/IL-23 房间分泌的 IL-23 压制了肿瘤的生长并且延长了老鼠, splenocytes 的提高的增长, CTL 活动,和 DC 的数字的幸存时间。IL-23 也支持了象 IFN- , IL-12 和 TNF-o 那样的 Th1 cytokines 的生产。然而, IL-4 的水平没显著地被提高。这些数据建议肿瘤房间分泌的 IL-23 能由提高有免疫力的反应导致 antitumor 活动。 | Baoen Shan Jingsheng Hao Qiaoxia Li Masatoshi Tagawa | 2006 | Cellular & Molecular Immunology2006，3，1： | 11 |
| 3 | Avoiding the innovation island in infrastructure mega-project显示文摘Infrastructure mega-project(IMP) innovation is a complex process characterized by highly diverse innovators, a dynamic life-cycle, and stickiness of innovation knowledge. The IMP's innovation network can be easily broken due to the fact that the network involves many different innovators across different industries and different projects. Further reasons for the fragility of the IMP's innovation network are the dynamics of the IMP life-cycle, the diversity of the IMP's innovative entities, the uniqueness of each IMP, and the temporary nature of each IMP's organizations. The innovation island formed by the breaking of an IMP's innovation network can stifle and harm innovation performance. Drawing from the knowledge-based view as well as innovation network theory, our research identifies the heterogeneous characteristics of IMP innovation. We propose a framework to analyze the formation mechanism of the IMP innovation island from three dimensions—the horizontal innovation island, the vertical innovation island, and the longitudinal innovation island. We look at the Hong Kong-ZhuhaiMacao Bridge project to elaborate the innovation island concept that negatively impacts IMP innovation. We also offer theoretical implications regarding the broader question of how IMPs can manage their innovation in practice. | Hongquan CHEN Quanke SU Saixing ZENG Daxin SUN Jonathan Jingsheng SHI | 2018 | Frontiers of Engineering Management2018，5，1： | 10 |
| 4 | Designing N-doped graphene/ReSe_(2)/Ti_(3)C_(2) MXene heterostructure frameworks as promising anodes for high-rate potassium-ion batteries显示文摘Developing high-performance anodes for potassium ion batteries(KIBs) is of paramount significance but remains challenging.In the normal sense,electrode materials are prepared by ubiquitous wet chemical routes,which otherwise might not be versatile enough to create desired heterostructures and/or form clean interfacial areas for fast transport of K-ions and electrons.Along this line,rate capability/cycling stability of resulting KIBs are greatly handicapped.Herein we present an all-chemical vapor deposition approach to harness the direct synthesis of nitrogen-doped graphene(NG)/rhenium diselenide(ReSe_2)hybrids over three-dimensional MXene supports as superior heterostructure anode material for KIBs.In such an innovative design,1 T'-ReSe2 nanoparticles are sandwiched in between the NG coatings and MXene frameworks via strong interfacial interactions,thereby affording facile K~+ diffusion,enhancing overall conductivity,boosting high-power performance and reinforcing structural stability of electrodes.Thus-constructed anode delivers an excellent rate performance of 138 mAh g^(-1) at 10.0 A g^(-1) and a high reversible capacity of 90 mAh g^(-1) at 5 A g^(-1) after 300 cycles.Furthermore,the potassium storage mechanism has been systematically probed by advanced in situlex situ characterization techniques in combination with first principles computations. | Zhou Xia Xiwen Chen Haina Cia Zhaodi Fan Yuyang Yi Wanjian Yin Nan Wei Jingsheng Cai Yanfeng Zhang Jingyu Sun | 2021 | Journal of Energy Chemistry2021，30，2： | 9 |
| 5 | A telomere-to-telomere gap-free reference genome of watermelon and its mutation library provide important resources for gene discovery and breeding显示文摘Watermelon,Citrullus lanatus,is the world's third largest fruit crop.Reference genomes with gaps and a narrow genetic base hinder functional genomics and genetic improvement of watermelon.Here,we report the assembly of a telomere-to-telomere gap-free genome of the elite watermelon inbred line G42 by incorporating high-coverage and accurate long-read sequencing data with multiple assembly strategies.All 11 chromosomes have been assembled into single-contig pseudomolecules without gaps,representing the highest completeness and assembly quality to date.The G42 reference genome is 369321829 bp in length and contains 24205 predicted protein-coding genes,with all 22 telomeres and 11 centromeres characterized.Furthermore,we established a pollen-EMS mutagenesis protocol and obtained over 200000M1 seeds from G42.In a sampling pool,48 monogenic phenotypic mutations,selected from 223M1and 78 M2 mutants with morphological changes,were confirmed.The average mutation density was 1 SNP/1.69Mband1 indel/4.55 Mb per M1 plant and 1SNP/1.08Mb and 1 indel/6.25 Mb per M2 plant.Taking advantage of the gap-free G42 genome,8039 mutations from 32 plants sampled from M1 and M2 families were identified with 100%accuracy,whereas only 25% of the randomly selected mutations identified using the 97103v2 reference genome could be confirmed.Using this library and the gap-free genome,two genes responsible for elongated fruit shape and male sterility(CiMs1)were identified,both caused by a single basechange from G to A.The validated gap-free genome and its EMS mutation library provide invaluable resources for functional genomics and genetic improvement of watermelon. | Yun Deng Shoucheng Liu Yilin Zhang Jingsheng Tan Xiaopeng Li Xiao Chu Binghua Xu Yao Tian Yudong Sun Bosheng Li YunbiXu Xing Wang Deng Hang He Xingping Zhang | 2022 | Molecular Plant2022，15，8： | 9 |
| 6 | Confining MOF-derived SnSe nanoplatelets in nitrogen-doped graphene cages via direct CVD for durable sodium ion storage显示文摘Tin-based compounds are deemed as suitable anode candidates affording promising sodium-ion storages for rechargeable batteries andhybrid capacitors.However,synergistically tailoring the electrical conductivity and structural stability of tin-based anodes to attain durablesodium-ion storages remains challenging to date for its practical applications.Herein,metal-organic framework(MOF)derived SnSe/C wrappedwithin nitrogen-doped graphene(NG@SnSe/C)is designed targeting durable sodium-ion storage.NG@SnSe/C possesses favorable electricalconductivity and structure stability due to the'inner'carbon framework from the MOF thermal treatment and'outer'graphitic cage from thedirect chemical vapor deposition synthesis.Consequently,NG@SnSe/C electrode can obtain a high reversible capacity of 650 mAh·g^-1 at 0.05 A·g^1,a favorable rate performance of 287.8 mAh·g^1 at 5 A·g^1 and a superior cycle stability with a negligible capacity decay of 0.016%percycle over 3,200 cycles at 0.4 A·g^1.Theoretical calculations reveal that the nitrogen-doping in graphene can stabilize the NG@SnSe/Cstructure and improve the electrical conductivity.The reversible Na-ion storage mechanism of SnSe is further investigated by in-situ X-raydiffraction/ex-s/tu transmission electron microscopy.Furthermore,assembled sodium-ion hybrid capacitor full-cells comprising our NG@SnSe/Canode and an active carbon cathode harvest a high energy/power density of 115.5 Wh·kg^-1/5,742 W·kg^-1,holding promise for next-generationen ergy storages. | Chen Lu Zhenzhu Li Zhou Xia Haina Ci Jingsheng Cai Yingze Song Lianghao Yu Wanjian Yin Shixue Dou Jingyu Sun Zhongfan Liu | 2019 | Nano Research2019，12，12： | 7 |
| 7 | 基于三维空间表征的高阶煤连通孔隙发育特征显示文摘为了探讨高阶煤孔裂隙连通特征,以沁水盆地南部3号无烟煤层为研究对象,基于煤储层结构三维数字化建模方法,构建了煤层多级次孔裂隙网络结构模型并提取了关键参数,同时结合扫描电子显微镜观测,进一步确认了孔裂隙连通关系以及不同成因类型的孔隙对煤储层连通性的贡献。结果表明:高阶煤孔喉细小,以孔径小于50 nm的中孔为主;孔隙迂曲度较低,截面以方形和正三角形为主,毛管阻力较小;孔隙连通性较差,对连通性起主要作用的是孔径小于50 nm的中孔;差异收缩孔是主要的纳米连通孔隙,该孔隙的发育,形成了具有一定网络拓扑性质的渗流网络结构。孔裂隙网络结构模型表征了孔裂隙分布特征与拓扑关系,能够实现煤岩内部空间的数字化、可视化表征。 | 杨延辉 刘世奇 桑树勋 Jingsheng Ma 王鑫 王文峰 杨艳磊 | 2016 | 煤炭科学技术2016，44，10： | 6 |
| 8 | Antifatigue,Antioxidant and Immunoregulatory Effects of Peptides Hydrolyzed from Manchurian Walnut(Juglans mandshurica Maxim.) on Mice显示文摘The Manchurian walnut(Juglans mandshurica Maxim.) is rich in proteins, whereas this resource has not been used efficiently. The antifatigue, antioxidative and immunoregulatory effects of Manchurian walnut hydrolysate peptides(MWHPs)were evaluated in this study. MWHPs with a degree of hydrolysis of 32.23% were ultrafiltered and divided into three fractions,namely, high(> 10 k Da), medium(3–10 kDa), and low molecular weight(< 3 kDa), and then fed to mice continuously at doses of 200, 400 or 800 mg/(kg·d). The antifatigue, antioxidative, and immunoregulatory effects of the peptides were tested on the second and fourth weeks of MWHP administration. Results showed that low-molecular-weight MWHPs exerted significant antifatigue(prolonging swimming time, elevating liver glycogen contents, and reducing lactic acid contents), antioxidative(enhancing superoxide dismutase(SOD), GSH-Px, and catalase(CAT) activities and reducing malondialdehyde(MDA) content), and immunoregulatory(raising the immune-organ index and promoting T-lymphocyte proliferation and s Ig A secretion in the intestinal tract) effects. This research indicates that MWHPs have potential applications in health care and may be developed as a base for new functional foods. | FANG Li REN Dayong CUI Lingyu LIU Chunlei WANG Ji LIU Wei MIN Weihong LIU Jingsheng | 2018 | Grain & Oil Science and Technology2018，1，1： | 6 |
| 9 | Clinical treatment of myasthenia gravis with deficiency of spleen and kidney based on combination of disease with syndrome theory显示文摘OBJECTIVE: To study the use of Jianjining in the treatment of myasthenia gravis (MG) patients with a deficiency of both spleen and kidney via the theory on the combination of disease with syndrome. METHODS: Sixty MG patients with a deficiency of both spleen and kidney were randomly divided into an treatment group (n=30) treated with Jianjining granules and Western Medicine (prednisone or pyridostigmine bromide) and a control group (n= 30) treated with Jianjining granules. The dosage of the three drugs was reduced over the course of treatment. After 3 and 6 months of treatment, the curative effect was evaluated with the muscle weakness severity scale (MWSS). RESULTS: The MWSS score after treatment declined significantly in both groups. The score in the treatment group was much lower than that in thecontrol group (P<0.05). The total effective rate was 63.33% (19/30) in the treatment group and 36.67% (11/30) in the control group after 3 months of treatment, and 80.00% (24/30) and 50.00% (15/30), respectively, after 6 months of treatment. The obvious and total effective rates in the treatment group were much higher than those in the control group (P<0.05). After 6 months of treatment, there were no obvious differences (P>0.05) in the obvious and effective rates between the 2 groups. However, the total effective rate in the treatment group was much higher than that in the control group (P<0.01). CONCLUSION: Using the theory on the combination of disease with syndrome, we found that the curative effect of Jianjining and Western Medicine on MG patients with deficiency of both spleen and kidney is worth further exploration. | Chao Jiang Ping Liu Yan Liang Shaobo Qiu Wenjing Bao Jingsheng Zhang | 2013 | Journal of Traditional Chinese Medicine2013，33，4： | 6 |
| 10 | Estimation of crop water requirement based on principal component analysis and geographically weighted regression显示文摘In this study the principal component analysis (PCA) and geographically weighted regression (GWR) are combined to estimate the spatial distribution of water requirement of the winter wheat in North China while the effect of the macroand micro-topographic as well as the meteorological factors on the crop water requirement is taking into account. The spatial distribution characteristic of the water requirement of the winter wheat in North China and its formation are analyzed based on the spatial variation of the main affecting factors and the regression coefficients. The findings reveal that the collinearity can be effectively removed when PCA is applied to process all of the affecting factors. The regression coefficients of GWR displayed a strong variability in space, which can better explain the spatial differences of the effect of the affecting factors on the crop water requirement. The evaluation index of the proposed method in this study is more efficient than the widely used Kriging method. Besides, it could clearly show the effect of those affecting factors in different spatial locations on the crop water requirement and provide more detailed information on the region where those factors suddenly change. To sum up, it is of great reference significance for the estimation of the regional crop water requirement. | WANG JingLei KANG ShaoZhong SUN JingSheng CHEN ZhiFang | 2013 | Chinese Science Bulletin2013，58，27： | 5 |
| 11 | Effect of solar radiation on net ecosystem CO_2 exchange of alpine meadow on the Tibetan Plateau显示文摘在西藏的高原上,高山的草地是最普遍的植被类型。高山的草地在成长季节有低生物生产率和低植被范围。在空气和高山的草地生态系统之间旧姓的白天被太阳的放射影响。分析变化的特征在旧姓并且在不同太阳的放射环境计算与光合作用和呼吸有关的参数,旧姓的大小用旋涡协变性技术在 2003, 2004, 2005 和 2006 从 7 月在 Damxung 被带去 8 月。太阳的放射根据网放射被组织进三个层次,哪个是在晴朗的天的超过 155 W m2 d1, 144 挠浡牥吗? | FAN Yuzhi ZHANG Xianzhou WANG Jingsheng SHI Peili | 2011 | Journal of Geographical Sciences2011，21，4： | 5 |
| 12 | Structure,rheology and electrospinning of zein and poly(ethylene oxide) in aqueous ethanol solutions显示文摘Electrospun fiber mats (EFM) integrated proteins and biocompatible polymers have been widely used as tissue scaffold, wound dressing and food packaging. The morphology of EFM has strong correlation with the structure and rheology of the solutions. We studied the structure and rheology of polyethylene oxide (PEO) and zein in 80% ethanol aqueous solutions and the resulted EFM. In solutions, zein with rod-like conformation tends to aggregate and form oligomer, the number of proteins in the oligomer spans from 2.5 to 55.2, while PEO always behaves like Gaussian chain in good solvent. Zein preferred to distribute along PEO chains in their mixed solutions, and the structures decomposed from small angle X-ray scattering have consistent relaxation spatial-temporal characteristics with rheological behaviors.Further, the aging of zein solutions enhanced shear thinning and resulted thicker fibers in EFM, which are attributed to the rod-like growth of zein aggregates. Aggregates in viscous media with long enough relaxation time are probably crucial for the formation of continuous electrospun fibers or ribbons. This study provides a clear correlation of the structure, rheology of solutions with the morphologies of EFM made up of proteins and polymers. | Ce Shi Shixia Xi Yingchun Han Hao Zhang Jingsheng Liu Yunqi Li | 2019 | Chinese Chemical Letters2019，30，2： | 5 |
| 13 | Mechanics of Aquitard Drainage by Aquifer-System Compaction and Its Implications for Water-Management in the North China Plain显示文摘The deformation of aquitard is the main contribution to land subsidence in the North China Plain, and the water released from aquitard compaction may be a large portion of the exploited groundwater. In this study, the consolidation test was employed to understand the mechanics on the drainage and deformation of aquitard. The results suggested the strain of aquitard mainly resulted from the difference of hydraulic head between aquifers. And it was decreased with depth of aquitard at the same hydrodynamic pressure. In contrast with the interbed within aquifers, the aquitard was deformable when it was compressed. The weakly bound water was significantly released when the void ratio was about 0.44–0.45, and the EC of water released from the aquitard was decreased with the compacting process. The data from the consolidation test suggested that the pumping of groundwater from aquifer III might be less contribution to the land subsidence with respect to other aquifers in the future. | Chen Su Zongyu Chen Jiang Chen Yuhong Fei Jingsheng Chen Baoqian Duan | 2014 | Journal of Earth Science2014，25，3： | 5 |
| 14 | Flexible memristors as electronic synapses for neuro- inspired computation based on scotch tape-exfoliated mica substrates显示文摘灵活 memristor 设备在便携计算机和集成电路由于他们的应用基于塑料底层吸引了可观的注意。然而,很塑料底层的 memristors 不能工作或在高温度的环境成年。在这研究, scotch-tape-exfoliated 云母被用作灵活 memristor 底层以便解决这些高温度的问题。我们的 TiN/ZHO/IGZO memristor,它被构造用一薄(10 m ) 云母底层,有优异灵活性和 thermostability。在把它弄弯 103 次以后,设备继续展出非凡的电的特征。它能也为在高、低的抵抗状态之间的转变被实现,甚至在多达 300 | Xiaobing Yan Zhenyu Zhou Jianhui Zhao Qi Liu Hong Wang Guoliang Yuan Jingsheng Chen | 2018 | Nano Research2018，11，3： | 5 |
| 15 | Medium Optimization for Antifungal Active Substance Production from Streptomyces Lydicus Using Response Surface Methodology显示文摘Response surface methodology was used to optimize the medium for antifungal active substance production from Streptomyces lydicus E12 in flask cultivation.Initially,the component factors,which influence antifungal substance production,were studied by varying one factor at a time.Starch,soybean cake powder,K_2HPO_4·3H_2O and MgSO_4·7H_2O were found to have a significant effect on the production of antifungal substances by the traditional design.Then,a Box-Behnken design was applied for further optimization.A quadratic model was found to fit antifungal active substance production.The analysis revealed that the optimum values of the tested variable were starch 84.96 g/L,soybean cake powder 4.13 g/L,glucose 5 g/L,MgSO_4·7H_2O 1.23 g/L,K_2HPO_4·3H_2O2.14 g/L and NaCl 0.5 g/L.The test result of 67.44%antifungal inhibition agreed with the prediction and increased by 14.28%in comparison with the basal medium. | Yan Zhao Yingquan Liang Lei Liu Jingsheng Cheng Yingjin Yuan | 2017 | Transactions of Tianjin University2017，23，1： | 5 |
| 16 | Assessment of deep groundwater over-exploitation in the North China Plain显示文摘A series of environmental—geological problems have been caused by over-exploitation of deep groundwater(i.e.,confined aquifer water) in the North China Plain.In order to better understand the status of deep groundwater over-exploitation and the resultant environmental—geological problems on a regional scale,the over-exploitation of groundwater has been assessed by way of the groundwater exploitation potential coefficient(i.e.,the ratio of exploitable amount of deep groundwater to current exploitation), cumulative land subsidence,and long-term average lowering rate of the groundwater table.There is a good correlation among the results calculated by the different methods.On a regional scale,deep groundwater has been over-exploited and there is no further exploitation potential under the current conditions.The groundwater exploitation degree index takes the exploitation in 2003 as the reference for the calculations, so the results mainly reflect the degree of current groundwater exploitation.The results of over-exploitation of deep groundwater obtained by land subsidence data and long-term average rate of depression of the water table mainly reflect environmental—geological problems caused by exploitation of deep groundwater. | Jiansheng Shi Zhao Wang Zhaoji Zhang Yuhong Fei Yasong Li Feng'e Zhang Jingsheng Chen Yong Qian | 2011 | Geoscience Frontiers2011，2，4： | 5 |
| 17 | Robotic stereotactic irradiation and reirradiation for spinal metastases: safety and efficacy assessment显示文摘 | Wang Qi Song Yongchun Zhuang Hongqing Wang Xiaoguang Li Fengtong Dong Yang Wang Jingsheng Yuan Zhiyong | 2014 | Chinese Medical Journal2014，，2： | 4 |
| 18 | Parallel ADR Detection Based on Spark and BCPNN显示文摘Adverse Drug Reaction(ADR) is one of the major challenges to the evaluation of drug safety in the medical field. The Bayesian Confidence Propagation Neural Network(BCPNN) algorithm is the main algorithm used by the World Health Organization to monitor ADRs. Currently, ADR reports are collected through the spontaneous reporting system. However, with the continuous increase in ADR reports and possible use scenarios, the efficiency of the stand-alone ADR detection algorithm will encounter considerable challenges. Meanwhile, the BCPNN algorithm requires a certain number of disk I/O, which leads to considerable time consumption. In this study,we propose a Spark-based parallel BCPNN algorithm, which speeds up data processing and reduces the number of disk I/O in BCPNN, and two optimization strategies. Then, the ADR data collected from the FDA Adverse Event Reporting System are used to verify the performance of the proposed algorithm and its optimization strategies.Experiments show that the parallel BCPNN can significantly accelerate data processing and the optimized algorithm has a high acceleration rate and can effectively prevent memory overflow. Finally, we apply the proposed algorithm to a dataset provided by a real medical consortium. Experiments further prove the performance and practical value of the proposed algorithm. | Li Sun Shan Sun Tianlei Wang Jiyun Li Jingsheng Lin | 2019 | Tsinghua Science and Technology2019，24，2： | 4 |
| 19 | Triassic Granitic Magmatism at the Northern Margin of the North China Craton: Implications of Geochronology and Geochemistry for the Tectonic Evolution of the Central Asian Orogenic Belt显示文摘The early Mesozoic marked an important transition from collisional orogeny to post-orogenic extension at the northern margin of the North China Craton(NCC). In this study, we undertook zircon U-Pb dating and whole-rock majorand trace-element geochemical analyses of early Mesozoic granitic rocks in the Chifeng area to establish their geochronological framework, petrogenesis, and implications for the tectonic evolution of the eastern Central Asia Orogenic Belt(CAOB). Zircon U-Pb dating results show that these rocks were emplaced in three stages during the Triassic:(1) syenogranites during 250-248 Ma,(2) granodiorites during 244-243 Ma, and(3) monzogranites and granodiorites during 232-230 Ma. These Triassic granitoids belong to the high-K calc-alkaline series and are evolved I-type granites. They have high SiO2 and low Mg O contents with enrichments in light rare-earth elements, Zr, Hf, Rb, Th, and U, and depletions in Ba, Nb, Ta, Sr, and Eu. These geochemical data indicate that the granitoids were derived from partial melting of a lower-crustal source under relatively low-pressure conditions and subsequently underwent extensive fractional crystallization. Considering both the geochemical data and regional geological information, we propose that the 250-248 Ma syenogranites were emplaced in an extensional environment linked to slab break-off after closure of the Paleo-Asian Ocean(PAO) along the Solonker-Xra Moron-Changchun suture zone. The 244-243 Ma granodiorites were formed in a compressional orogenic setting during collision between the Erguna-Xing’an-Songliao composite block and the NCC. The 232-230 Ma granodiorites and monzogranites were emplaced during the transition from compressional orogeny to post-orogenic extension. Overall, the early Mesozoic tectonic evolution of the Chifeng area can be divided into three main stages:(1) closure of the Paleo-Asian Ocean and extension related to slab break-off during the Early Triassic;(2) continuous collisional compression during the Middle Triassic after closure of the PAO;and(3) post-orogenic extension during the Late Triassic, most probably due to lithospheric delamination after amalgamation of the Erguna-Xing’an-Songliao composite block and the NCC. | CHEN Jingsheng TIAN Dexin YANG Hao LI Weiwei LIU Miao LI Bin YANG Fan LI Wei WU Zhen | 2019 | Acta Geologica Sinica(English Edition)2019，93，5： | 4 |
| 20 | 沁水盆地南部高阶煤储层气水产出过程分析显示文摘为了探讨煤层气井排采控制指标,以沁水盆地南部高阶煤为研究对象,基于气-水相对渗透率试验和渗流物理仿真模拟,探讨了宏观与微观渗流网络中气-水相对渗透率变化机制,并进一步阐述了煤储层气、水产出过程。结果表明,宏观裂隙气-水相渗曲线分为气-水同流区和纯气流动区;微观孔裂隙气-水相渗曲线分为单相水流区、气-水同流区和纯气流动区。煤储层流体产出过程可归纳为开发初期宏观裂隙中水带气的过程,微观孔裂隙中水的单相流动阶段,气相饱和度上升阶段,气驱水的过程,气的单相流动阶段,以及宏观裂隙中气的单相流动阶段。其中,微观孔裂隙中气驱水的过程是高产气井稳定产液的关键,而游离气产出则是煤层压力整体下降的基础。 | 刘世奇 桑树勋 MA Jingsheng 杨延辉 王鑫 杨艳磊 | 2017 | 煤炭科学技术2017，45，9： | 4 |
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