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| 1 | miR-20a targets BNIP2 and contributes chemotherapeutic resistance in colorectal adenocarcinoma SW480 and SW620 cell lines显示文摘化疗是为 colorectal 腺癌癌症的重要治疗;然而, colorectal 腺癌房间经常开发抵抗到化学疗法的药,导致恶化和差的耐心的预后。药抵抗的发展经常是一个 multifactor 过程,它包含了几基因和细胞的机制。microRNAs 是否定地在 post-transcriptional 水平调整基因表示的内长的小非编码的 RNA。在现在的学习,我们在调整 colorectal 腺癌房间 SW620 和 SW480 的药敏感调查了 microRNAs 的可能的角色。使用 microRNA 表达式数组和我们发现了房间展出了的那 SW620 的量的反向的 transcriptase (RT )-PCR, 与 SW480 房间相比提高了 miR-20a 表示。另外,这二房间行显示了不同敏感到化学疗法的药氟尿嘧啶, oxaliplatin,和 teniposide。miR-20a 的调整改变了 SW620 和 SW480 房间的敏感到这些药;miR-20a 击倒敏化的 SW620 房间到化学疗法的代理人,而在 SW480 房间的 miR-20a 的 overexpression 导致了 chemoresistance。内长的 BNIP2 mRNA 和 BNIP2 蛋白质层次是相反地由量的 RT-PCR 和西方的污点分析与是的 miR-20a 层次有关检测了。荧光记者试金显示出在 miR-20a 和 BNIP2 3UTR 之间的一个直接相互作用。一起拿,我们的调查结果建议 miR-20a 可以在 colorectal 腺癌癌症房间药抵抗起一个作用并且可以是对在 colorectal 腺癌的化疗药抵抗的一个治疗学的目标。 | Huijuan Chai Min Liu Ruiqing Tian Xin Li Hua Tang | 2011 | Acta Biochimica et Biophysica Sinica2011,43,3: | 18 |
| 2 | Derivation of water quality criteria for representative water-body pollutants in China显示文摘In this study, toxicological data for zinc (Zn), cadmium (Cd), hexavalent chromium (Cr (VI)), benzene, and nitrobenzene were collected from various databases and publications, screened and then constructed into species sensitivity distribution (SSD) curves. Then water quality criteria (WQC) were derived for protection of the freshwater aquatic life in China against five representative pollutants. The values derived in this study were compared with those issued by the US Environmental Protection Agency and the Chinese national environmental standard for surface water to identify factors underlying the differences. The results showed that the SSD curves for the five pollutants differed significantly, with the examined aquatic species being generally more sensitive to Zn, Cd, and Cr (VI) than benzene and nitrobenzene. The acute WQC were: 48.43 μg L 1 for Zn, 0.4218 μg L 1 for Cd, 45.79 μg L 1 for Cr (VI), 2651 μg L 1 for benzene, and 1426 μg L 1 for nitrobenzene. The chronic WQC were: 20.01 μg L 1 for Zn, 0.2428 μg L 1 for Cd, 14.22 μg L 1 for Cr (VI), 530.2 μg L 1 for benzene, and 286.2 μg L 1 for nitrobenzene. The results of this comparative study of representative pollutants may offer guideline values for future WQC studies for China. | WU FengChang FENG ChengLian ZHANG RuiQing LI YuShuang DU DongYang | 2012 | Science China Earth Sciences2012,55,6: | 16 |
| 3 | Effect of catgut implantation at acupoints on GABA_B and mGluR1 expressions in brain stem of rats with spasticity after stroke显示文摘OBJECTIVE: To investigate the effect of catgut implantation at acupoints on the expressions of γ-amino butyric acid B receptor(GABAB ) and metabotropic glutamate receptor 1(mGluR1) in the brain stem of rats with spasticity after stroke.METHODS: In total, 60 male Sprague-Dawley rats were randomly divided into three groups: a sham group(n=10), a model group(n=25) and a treatment group(n=25). The rats in both the model group and the treatment group were subjected to middle cerebral artery occlusion to establish a model of focal cerebral ischemia. Rats with limb-spasm met the inclusion criteria. Only the left carotid artery was isolated in sham group rats. Three days after modeling, the treatment group was subjected to catgut implantation at Dazhui(GV 14), Guanyuan(CV 4), and Zhongwan(CV 12). Neurological deficit symptoms were assessed with the Zea-Longa neurological deficit score. The Modified Ashworth Scale(MAS), and isolated muscle tone were used to evaluate spasticity before and after treatment. Immunohistochemistry was applied to determine the expression of GABAB and mGluR1 in the rat brain stem after treatment.RESULTS: After treatment, neural impairment symptoms had significantly improved in the treatment group when compared to the model group(P<0.05). Both MAS and isolated muscle tone in the treatment group were significantly decreased when compared with the model group(P<0.05),and were also lower than before treatment. GABAB expression was significantly higher and mGluR1 was lower in the treatment group when compared with the model group(P<0.01 and P<0.05, respectively).CONCLUSION: Catgut implantation at Dazhui(GV 14), Guanyuan(CV 4), and Zhongwan(CV 12), can relieve limb spasticity by increasing the expression of GABAB and reducing the expression of mGluR1 in the brain stem of rats after stroke. | Chengmei Liu Ruiqing Li Xiaolei Song Xiaodong Feng | 2014 | Journal of Traditional Chinese Medicine2014,34,5: | 14 |
| 4 | Focal depths for moderate-sized aftershocks of the Wenchuan M_S8.0 earthquake and their implications显示文摘Sliding-window cross-correlation method is firstly adopted to identify sPn phase, and to constrain focal depth from regional seismograms, by measuring the time separation between sPn and Pn phases. We present the focal depths of the 17 moderate-sized aftershocks (MS≥5.0) of the Wenchuan MS8.0 earth-quake, using the data recorded by the regional seismic broadband networks of Shaanxi, Qinghai, Gansu, Yunnan and Sichuan. Our results show focal depths of aftershocks range from 8 to 20 km, and tend to cluster at two average depths, separate at 32.5°N, i.e., 11 km to the south and 17 km to the north, indicating that these aftershocks are origin of upper-to-middle crust. Combined with other results, we suggest that the Longmenshan fault is not a through-going crustal fault and the Pingwu-Qingchuan fault may be not the northward extension of the Longmenshan thrust fault. | ZHANG RuiQing WU QingJu LI YongHua DING ZhiFeng ZENG RongSheng | 2008 | Science China Earth Sciences2008,51,12: | 14 |
| 5 | Distribution characteristics and ecological risk assessment of PAHs in surface waters of China显示文摘The concentrations of PAHs in the surface waters from seven river basins in China were summarized from literature published from 2000-2010. Subsequently, the risks from individual PAHs and ∑PAHs in the surface waters of China were quantified by comparing the overlap between the probability distributions of exposure concentrations with the probability distributions of toxicity data. The results show that the concentrations of 15 PAHs in the surface waters ranged from 3.09 to 38139.00 ng L-1, with a geometric mean of 474.93 ng L-1. The significantly higher concentrations of the 15 PAHs occurred in the surface waters from northern China when compared with those from southern China. The concentrations of the 15 PAHs in Chinese surface waters were higher than those in other waters worldwide. The MOS10 (margin of safety) values were calculated at 90th percentile values of exposure concentrations and 10th percentile values of toxicity data, with 5.75, 0.17, 2.33, 0.30, 0.57, 1.74, 1.05, and 0.11 for Ace, Ant, Flu, BaP, Flua, Nap, Phe, and Pyr, respectively. The probabilities of the individual PAH concentrations exceeding the 10th percentile value of the toxicity data were 6.06%, 2.07%, 9.51%, and 2.07% for Nap, Ace, Phe, and Flu, respectively, suggesting minimal risk to aquatic organisms; however, the probabilities of BaP, Ant, Flua, and Pyr exceeding this value were 19.49%, 25.46%, 15.15%, and 30.50%, respectively, indicating potential risks. Among the individual PAHs, the ecological risk from Pyr was the highest, followed by, in descending order of risk, Ant, Bap, Flua, Phe, Nap, Flu, and Ace. Additionally, the combined ecological risk of ∑PAH8 in Chinese surface waters was significantly higher than any that of individual PAHs alone. The MOS10 values in the river basins were < 1, except for the Haihe River Basin, suggesting a potential combined risk from ∑PAH8 in the other six river basins. The probabilities calculation indicate that low to high ecological risk from ∑PAH8 for all aquatic species was reported in the Liaohe River Basin (65.58%), Huaihe River Basin (57.15%), Songhua River Basin (46.49%), Pearl River Basin (38.41%), Yangtze River Basin (25.98%), Yellow River Basin (15.92%), and Haihe River Basin (5.22%). | GUO GuangHui WU FengChang HE HongPing ZHANG RuiQing LI HuiXian FENG ChengLian | 2012 | Science China Earth Sciences2012,55,6: | 14 |
| 6 | A 5.7–6.4GHz GaAs HBT Power Amplifier with a Gain Enhanced Bias Circuit显示文摘This paper describes the design of a 5.7–6.4GHz Ga As Heterojunction bipolar transistor(HBT)power amplifier for broadband wireless application such as wireless metropolitan area networks.A bias circuit is proposed which enhances the power gain and provides a good linearity.Using the wideband matching network techniques with trap circuits embedded to filter the harmonics and the diode-based linearizing techniques,a broadband power amplifier module was obtained which exhibited a gain above 28d B.This is about 1d B improvement compared with those normal bias circuits at a supply voltage of 5V in the frequency range of 5.7–6.4GHz,measured with Continuous wave(CW)signals.The saturated output power was greater than 33d Bm in 5.7–6.4GHz and the output 1d B compression point was greater than 31d Bm.The phase deviation was less than 5 degrees when the output power below 33d Bm.The second and third order harmonic components were also less than-45d Bc and-50d Bc. | ZHENG Ruiqing ZHANG Guohao YU Kai LI Sizhen ZHENG Yaohua | 2017 | Chinese Journal of Electronics2017,26,3: | 7 |
| 7 | Differential patterns of SH and P wave velocity structures in the transition zone beneath northwestern Tibet显示文摘Triplicate waveform modeling is used to resolve SH (Vs) and P (Vp ) wave velocity structures in the upper mantle transition zone (TZ) beneath northwestern (NW) Tibet. Focal depth move out stacking is proposed to enhance the identification of triplicate phases, and can be used to test consistency of our data. Our results show that the Vs and Vp structures are decorrelated, and that a large Vs jump occurred across the 660-km discontinuity, with a small Vs gradient above it. Conversely, the Vp model is characterized by a relatively small contrast across the discontinuity, accompanied by a high Vp gradient in the TZ. There seem no significant depth anomalies of the 660-km discontinuity in both models. The seismic structure in TZ beneath NW Tibet are similar to recent studies beneath the central Qiangtang and western Lhasa terrains. Taking the lower TZ structures under India as references, Vs is normal but Vp appears slightly high, and thus a high ratio of Vp/Vs was indicated beneath NW Tibet. Combined results with experiment information from mineral studies, we suggest that the differential anomalies of Vp and Vs can be attributed to a chemical heterogeneity, such as increased Al content in the lower TZ. Considering the tectonic evolution of Tibet, the chemical heterogeneity may be associated with subduction or detachment of the Tethys oceanic slab. | ZHANG RuiQing WU QingJu LI YongHua ZENG RongSheng | 2011 | Science China Earth Sciences2011,54,10: | 5 |
| 8 | Autophagy receptor CCDC50 tunes the STING-mediated interferon response in viral infections and autoimmune diseases显示文摘DNA sensing and timely activation of interferon(IFN)-mediated innate immunity are crucial for the defense against DNA virus infections and the clearance of abnormal cells.However,overactivation of immune responses may lead to tissue damage and autoimmune diseases;therefore,these processes must be intricately regulated.STING is the key adaptor protein,which is activated by cyclic GMP-AMP,the second messenger derived from cGAS-mediated DNA sensing.Here,we report that CCDC50,a newly identified autophagy receptor,tunes STING-directed type I IFN signaling activity by delivering K63-polyubiquitinated STING to autolysosomes for degradation.Knockout of CCDC50 significantly increases herpes simplex virus 1(HSV-1)-or DNA ligand-induced production of type I IFN and proinflammatory cytokines.Ccdc50-deficient mice show increased production of IFN,decreased viral replication,reduced cell infiltration,and improved survival rates compared with their wild-type littermates when challenged with HSV-1.Remarkably,the expression of CCDC50 is downregulated in systemic lupus erythematosus(SLE),a chronic autoimmune disease.CCDC50 levels are negatively correlated with IFN signaling pathway activation and disease severity in human SLE patients.CCDC50 deficiency potentiates the cGAS-STING-mediated immune response triggered by SLE serum.Thus,our findings reveal the critical role of CCDC50 in the immune regulation of viral infections and autoimmune diseases and provide insights into the therapeutic implications of CCDC50 manipulation. | Panpan Hou Yuxin Lin Zibo Li Ruiqing Lu Yicheng Wang Tian Tian Penghui Jia Xi Zhang Liu Cao Zhongwei Zhou Chunmei Li Jieruo Gu Deyin Guo | 2021 | Cellular & Molecular Immunology2021,18,10: | 3 |
| 9 | Identification of Histoplasma causing an unexplained disease cluster in Matthews Ridge, Guyana显示文摘Here,we report the identification of Histoplasma causing an unexplained disease cluster in Matthews Ridge,Guyana.In March 2019,14 employees of Chongqing Bosai Mining Company,China,working in a manganese mining of Guyana,had unexplained fever,and two of them died.We obtained lung and brain tissues as well as the blood samples from the two deceased cases(patient No.1 and 2),and bronchoscopy lavages and cerebrospinal fluid samples from one severe case(patient No.3),respectively.All samples were tested by pathological examination,high-throughput sequencing,and real-time PCR.Pathological detection showed the presence of spore-like structures in the lung tissue of patient No.1,indicating a fungal infection in this patient.Nanopore sequencing identified the existing of H.capsulatum in the lung tissue sample within 13 h.Next-generation sequencing identified specific fragments of H.capsulatum in all of the samples tested(lung,brain and blood serum from the deceased cases,and plasma from the severe case).Real-time PCR assays did not reveal any viral infection related to transmission from bat feces.We conclude that H.capsulatum was the causative pathogen of this disease cluster based on epidemiologic,clinical,pathological and nucleic acid evidence. | Ji Wang Weimin Zhou Hua Ling Xiaoping Dong Yi Zhang Jiandong Li Yong Zhang Jingdong Song William J.Liu Yang Li Ruiqing Zhang Wei Zhen Kun Cai Shuangli Zhu Dongyan Wang Jinbo Xiao Yigang Tong Wenli Liu Lihua Song Wei Wu Yang Liu Xiang Zhao Ruihuan Wang Sheng Ye Jing Wang Roujian Lu Baoying Huang Fei Ye Wenwen Lei Rongbao Gao Qi Shi Cao Chen Jun Han Wenbo Xu George F.Gao Xuejun Ma Guizhen Wu | 2019 | Biosafety and Health2019,1,3: | 3 |
| 10 | Ferroelectric and dielectric properties of Sr 2? x (Na, K) x Bi 4 Ti 5 O 18 lead-free piezoelectric ceramics显示文摘 | Qian Chen Zhijun Xu Ruiqing Chu Jigong Hao Yanjie Zhang Guorong Li Qingrui Yin | 2010 | Physica B: Physics of Condensed Matter2010,,13: | 3 |
| 11 | Research progress and prospects of coal petrology and coal quality in China显示文摘Clean utilization of coal depends on the quality of raw coal,which depends on the coal-forming parent materials(petrology and chemical composition of coal),the multiple media of the coal-forming environment,and some epigenetic conditions,such as thermal evolution(coalification),magmatic hydrothermal fluid,groundwater.Based on the research results of predecessors and prediction studies of coal resources since the founding of China,the present status of research on coal petrology,coal quality,coal metamorphism,and coal geochemistry in China is discussed in detail,with emphasis on research progress and the general situation of highly efficient and clean utilization of coal in the technical fields of coking,pyrolysis,combustion,gasification,and liquefaction,and the development prospects of coal petrology and coal quality in China are prospected. | Yuegang Tang Ruiqing Li Shaoqing Wang | 2020 | International Journal of Coal Science & Technology2020,7,2: | 3 |
| 12 | A Data-Driven Clustering Recommendation Method for Single-Cell RNA-Sequencing Data显示文摘Recently,the emergence of single-cell RNA-sequencing(scRNA-seq)technology makes it possible to solve biological problems at the single-cell resolution.One of the critical steps in cellular heterogeneity analysis is the cell type identification.Diverse scRNA-seq clustering methods have been proposed to partition cells into clusters.Among all the methods,hierarchical clustering and spectral clustering are the most popular approaches in the downstream clustering analysis with different preprocessing strategies such as similarity learning,dropout imputation,and dimensionality reduction.In this study,we carry out a comprehensive analysis by combining different strategies with these two categories of clustering methods on scRNA-seq datasets under different biological conditions.The analysis results show that the methods with spectral clustering tend to perform better on datasets with continuous shapes in two-dimension,while those with hierarchical clustering achieve better results on datasets with obvious boundaries between clusters in two-dimension.Motivated by this finding,a new strategy,called QRS,is developed to quantitatively evaluate the latent representative shape of a dataset to distinguish whether it has clear boundaries or not.Finally,a data-driven clustering recommendation method,called DDCR,is proposed to recommend hierarchical clustering or spectral clustering for scRNA-seq data.We perform DDCR on two typical single cell clustering methods,SC3 and RAFSIL,and the results show that DDCR recommends a more suitable downstream clustering method for different scRNA-seq datasets and obtains more robust and accurate results. | Yu Tian Ruiqing Zheng Zhenlan Liang Suning Li Fang-Xiang Wu Min Li | 2021 | Tsinghua Science and Technology2021,26,5: | 3 |
| 13 | Contrasting vegetation changes in dry and humid regions ofthe Tibetan Plateau over recent decades显示文摘An overall greening over the Tibetan Plateau(TP) in recent decades has been established through analyses of remotely sensed Normalized Difference Vegetation Index(NDVI), though the regional pattern of the changes and associated drivers remain to be explored. This study used a satellite Leaf Area Index(LAI) dataset(the GLASS LAI dataset) and examined vegetation changes in humid and arid regions of the TP during 1982–2012. Based on distributions of the major vegetation types, the TP was divided roughly into a humid southeastern region dominated by meadow and a dry northwestern region covered mainly by steppe. It was found that the dividing line between the two regions corresponded well with the lines of mean annual precipitation of 400 mm and the mean LAI of 0.3. LAI=0.3 was subsequently used as a threshold for investigating vegetation type changes at the interanual and decadal time scales: if LAI increased from less than 0.3 to greater than0.3 from one time period to the next, it was regarded as a change from steppe to meadow, and vice versa. The analysis shows that changes in vegetation types occurred primarily around the dividing line of the two regions, with clear growth(reduction) of the area covered by meadow(steppe), in consistency with the findings from using another independent satellite product. Surface air temperature and precipitation(diurnal temperature range) appeared to contribute positively(negatively) to this change though climate variables displayed varying correlation with LAI for different time periods and different regions. | RuiQing Li YanHong Gao DeLiang Chen YongXin Zhang SuoSuo Li | 2018 | Research in Cold and Arid Regions2018,10,6: | 3 |
| 14 | Neuron stem cell NLRP6 sustains hippocampal neurogenesis to resist stress-induced depression显示文摘Neurogenesis decline in hippocampal dentate gyrus(DG)participates in stress-induced depressive-like behaviors,but the underlying mechanism remains poorly understood.Here,we observed low-expression of NOD-like receptor family pyrin domain containing 6(NLRP6)in hippocampus of stress-stimulated mice,being consistent with high corticosterone level.NLRP6 was found to be abundantly expressed in neural stem cells(NSCs)of DG.Both Nlrp6 knockout(Nlrp6^(-/-))and NSCconditional Nlrp6 knockout(Nlrp6CKO)mice were susceptible to stress,being more likely to develop depressive-like behaviors.Interestingly,NLRP6 was required for NSC proliferation in sustaining hippocampal neurogenesis and reinforcing stress resilience during growing up.Nlrp6 deficiency promoted esophageal cancer-related gene 4(ECRG4)expression and caused mitochondrial dysfunction.Corticosterone as a stress factor significantly down-regulated NLRP6 expression,damaged mitochondrial function and suppressed cell proliferation in NSCs,which were blocked by Nlrp6 overexpression.ECRG4 knockdown reversed corticosterone-induced NSC mitochondrial function and cell proliferation disorders.Pioglitazone,a well-known clinical drug,up-regulated NLRP6 expression to inhibit ECRG4 expression in its protection against corticosterone-induced NSC mitochondrial dysfunction and proliferation restriction.In conclusion,this study demonstrates that NLRP6 is essential to maintain mitochondrial homeostasis and proliferation in NSCs,and identifies NLRP6 as a promising therapeutic target for hippocampal neurogenesis decline linked to depression. | Chuanfeng Tang Qiaona Wang Jingyan Shen Congying Wang Hong Ding Shiyu Wen Fan Yang Ruiqing Jiao Xingxin Wu Jianmei Li Lingdong Kong | 2023 | Acta Pharmaceutica Sinica B2023,13,5: | 3 |
| 15 | Electrical properties and luminescence properties of 0.96(K0.48Na0.52)(Nb0.95Sb0.05)–0.04Bi0.5(Na0.82K0.18)0.5ZrO3–xSm lead-free ceramics显示文摘In this paper,Sm-doped 0.96(K0.48 Na0.52)(Nb0.95 Sb0.05)–0.04 Bi0.5(Na0.82 K0.18)0.5 Zr O3(abbreviated as KNSN–0.04 BNKZ)lead-free piezoelectric ceramics were prepared by conventional solid-state sintering method and the effects of Sm2 O3 on the phase structure,microstructure,electrical and luminescent properties of KNSN–0.04 BNKZ potteries were studied.Results revealed that a single solid solution phase with pseudo-cubic perovskite structure was formed between KNSN–0.04 BNKZ and Sm2 O3.Existence of weak dielectric/ferroelectric properties with a diffuse dielectric anomaly and slim P–E hysteresis loops of the Sm-doped KNSN–0.04 BNKZ demonstrated the ferroelectric relaxor behavior of the KNNS–0.04 BNKZ–x Sm ceramics.Accordingly,the temperature stability and fatigue behavior of the modified ceramics were significantly improved.It was found that the KNSN–0.04 BNKZ ceramics with 0.002 mol Sm addition exhibited nearly temperature independent properties and fatigue-free behavior.Moreover,Sm-modified KNSN–0.04 BNKZ exhibits a bright photoluminescence with a strong orange emission under visible light irradiation.As a material with both electrical and luminescent properties,it has good application prospect in future optoelectronic components by integrating its luminescent and electrical properties. | Wei LI Jigong HAO Wei LI Juan DU Peng FU Wenzhi SUN Chong CHEN Zhijun XU Ruiqing CHU | 2020 | Journal of Advanced Ceramics2020,9,1: | 2 |
| 16 | Upper mantle SH velocity structure beneath Qiangtang Terrane by modeling triplicated phases显示文摘我们嘘由比较地区性的距离在西方的 Qiangtang 岩层下面为上面的披风抑制波浪速度结构有合成震动图的地震 triplicated 波形,基于中介,事件(∼220 km ) 由 INDEPTH-III 地震数组记录了。ATIP 模型揭示一个低速度的异例与直到在在在上面的披风的 410 km 的深度上面的 190 270 km 和一个相对小的速度坡度的深度的 −4% 变化,它与以前的结果一致。在有另外的地质的研究的联合,我们建议最高的岩流圈的深度是 190 km,变瘦的大规模岩石圈都不发生在西方的 Qiangtang 岩层,除以外, Qiangtang 岩层作为稳定的欧亚大陆有一样的有点上面的披风结构。 | ZHANG RuiQing WU QingJu LI YongHua ZENG RongSheng | 2008 | Chinese Science Bulletin2008,53,20: | 2 |
| 17 | Small-angle X-ray scattering investigation of aging behavior of Al-Cu-Mg-Ag alloys using synchrotron radiation显示文摘The aging behavior of Al-Cu-Mg-Ag alloys with high Cu/Mg was studied by transmission electron microscopy (TEM) and small-angle X-ray scattering (SAXS) using synchrotron radiation. TEM study reveals that the major strengthening phases of the alloy after aging at 160?C for 10 h are Ω and less θ′. SAXS study shows that the scattering patterns are composed of several concentric circles at the beginning of aging process, which is replaced by the butterfly-wings scattering patterns with the increase of aging time. The butterfly-wings scattering patterns are composed of several branches. The angles between the branches are roughly equal to that between the habit planes of precipitates. The evolution of Guinier radius with aging time indicates the good coarsening resistance of the precipitates. The evolution of integrated intensity is consistent with the classical two-step precipitation process. | Zhang Jianbo Zhang Yongan Zhu Baohong Liu Ruiqing Li Zhihui Li Xiwu | 2012 | Rare Metals2012,31,6: | 2 |
| 18 | Ecosystem service valuation of bays in East China Sea and its response to sea reclamation activities显示文摘Ecosystem service values(ESVs)of bays and their response to sea reclamation are of great practical importance for forming bay eco-compensation policy and extension of blue economic space.Based on land use information of bays collected during the period of 1990–2015,the spatiotemporal evolution of ESVs of 12 main bays in East China Sea and their response to sea reclamation activities over the past 25 years were quantitatively analyzed.The analysis results indicate that ESVs of bays in East China Sea showed a continuous downward trend and the whole ecosystem was continuously degraded,in which the degradation degree of ESV in the southern bays was higher than that in the northern bays.Spatial zoning of ESVs of bays in East China Sea was remarkable,showing a continuous downward trend from low-value to high-value zone.Spatial variation of ESVs of each bay was also significant,expanding from a city and from inland to the coast,which suggests that human activities,mainly reclamation,have become main agents for ESV evolution of bays in East China Sea.ESVs of bays have a significant response to sea reclamation,manifested as a significant negative correlation between ESV and reclamation intensity.The correlation in the southern bays was stronger than that in the northern bays,which was caused by different effects of sea reclamation modes on ESV evolution of muddy and bedrock bays.A negative effect of sea reclamation activities on bay ecosystem was hysteretic.Therefore,an attention should be paid to dynamic monitoring and early warning of development status in offshore areas,ecosystem-level reclamation control policy,and coastal wetland reserves planning.Moreover,the spatial coupling mechanism study between bay ecosystem service demand and its service supply capacity should be strengthened to realize systematic regulation of bay ecological security pattern. | LIU Ruiqing XU Hao LI Jialin PU Ruiliang SUN Chao CAO Luodan JIANG Yimei TIAN Peng WANG Lijia GONG Hongbo | 2020 | Journal of Geographical Sciences2020,30,7: | 2 |
| 19 | A time-driven transmission method for well logging networks显示文摘Long delays and poor real-time transmission are disadvantageous to well logging networks consisting of multiple subnets.In this paper,we proposed a time-driven transmission method(TDTM)to improve the efficiency and precision of logging networks.Using TDTM,we obtained well logging curves by fusing the depth acquired on the surface,and the data acquired in downhole instruments based on the synchronization timestamp.For the TDTM,the precision of time synchronization and the data fusion algorithm were two main factors influencing system errors.A piecewise fractal interpolation was proposed to fast fuse data in each interval of the logging curves.Intervals with similar characteristics in curves were extracted based on the change in the histogram of the interval.The TDTM is evaluated with a sonic curve,as an example.Experimental results showed that the fused data had little error,and the TDTM was effective and suitable for the logging networks. | Wu Ruiqing Chen Wei Chen Tianqi Li Qun | 2009 | Petroleum Science2009,6,3: | 2 |
| 20 | Synthesis and biological activities of 2-oxocycloalkylsulfonamides显示文摘 | XINGHAI LI XINLING YANG XIAOMEI LIANG ZHENPENG KAI HUIZU YUAN DEKAIYUAN JIANJUN ZHANG RUIQING WANG FUXIANG RAN SHUHUA QI YUN LING FUHENG CHEN DAOQUAN WANG | | 0,,08: | 1 |