|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | A unified model for the formation and distribution of both conventional and unconventional hydrocarbon reservoirs显示文摘The discovery and large-scale exploration of unconventional oil/gas resources since 1980s have been considered as the most important advancement in the history of petroleum geology;that has not only changed the balance of supply and demand in the global energy market,but also improved our understanding of the formation mechanisms and distribution characteristics of oil/gas reservoirs.However,what is the difference of conventional and unconventional resources and why they always related to each other in petroliferous basins is not clear.As the differences and correlations between unconventional and conventional resources are complex challenging issues and very critical for resources assessment and hydrocarbon exploration,this paper focused on studying the relationship of formations and distributions among different oil/gas reservoirs.Drilling results of 12,237 exploratory wells in 6 representative petroliferous basins of China and distribution characteristics for 52,926 oil/gas accumulations over the world were applied to clarify the formation conditions and genetic relations of different oil/gas reservoirs in a petroliferous basin,and then to establish a unified model to address the differences and correlations of conventional and unconventional reservoirs.In this model,conventional reservoirs formed in free hydrocarbon dynamic field with high porosity and permeability located above the boundary of hydrocarbon buoyancy-driven accumulation depth limit.Unconventional tight reservoirs formed in confined hydrocarbon dynamic field with low porosity and permeability located between hydrocarbon buoyancy-driven accumulation depth limit and hydrocarbon accumulation depth limit.Shale oil/gas reservoirs formed in the bound hydrocarbon dynamic field with low porosity and ultra-low permeability within the source rock layers.More than 75%of proved reserves around the world are discovered in the free hydrocarbon dynamic field,which is estimated to contain only 10%of originally generated hydrocarbons.Most of undiscovered resources distributed in the confined hydrocarbon dynamic field and the bound hydrocarbon dynamic field,which contains 90%of original generated hydrocarbons,implying a reasonable and promising area for future hydrocarbon explorations.The buried depths of hydrocarbon dynamic fields become shallow with the increase of heat flow,and the remaining oil/gas resources mainly exist in the deep area of“cold basin”with low geothermal gradient.Lithology changing in the hydrocarbon dynamic field causes local anomalies in the oil/gas dynamic mechanism,leading to the local formation of unconventional hydrocarbon reservoirs in the free hydrocarbon dynamic field or the occurrence of oil/gas enrichment sweet points with high porosity and permeability in the confined hydrocarbon dynamic field.The tectonic movements destroy the medium conditions and oil/gas components,which leads to the transformation of conventional oil/gas reservoirs formed in free hydrocarbon dynamic field to unconventional ones or unconventional ones formed in confined and bound hydrocarbon dynamic fields to conventional ones. | Xiongqi Pang Chengzao Jia Junqing Chen Maowen Li Wenyang Wang Qinhong Hu Yingchun Guo Zhangxin Chen Junwen Peng Keyu Liu Keliu Wu | 2021 | Geoscience Frontiers2021，12，2： | 8 |
| 2 | Wheat powdery mildew resistance gene Pm64 derived from wild emmer (Triticum turgidum var.dicoccoides) is tightly linked in repulsion with stripe rust resistance gene Yr5显示文摘Stripe rust and powdery mildew are both devastating diseases for durum and common wheat.Pyramiding of genes conferring resistance to one or more diseases in a single cultivar is an important breeding approach to provide broader spectra of resistances in wheat improvement. A new powdery mildew resistance gene originating from wild emmer(Triticum turgidum var.dicoccoides) backcrossed into common wheat(T. aestivum) line WE35 was identified. It conferred an intermediate level of resistance to Blumeria graminis f. sp. tritici isolate E09 at the seedling stage and a high level of resistance at the adult plant stage. Genetic analysis showed that the powdery mildew resistance in WE35 was controlled by a dominant gene designated Pm64. Bulked segregant analysis(BSA) and molecular mapping indicated that Pm64 was located in chromosome bin 2 BL4-0.50–0.89. Polymorphic markers were developed from the corresponding genomic regions of Chinese Spring wheat and wild emmer accession Zavitan to delimit Pm64 to a 0.55 cM genetic interval between markers WGGBH1364 and WGGBH612, corresponding to a 15 Mb genomic region on Chinese Spring and Zavitan 2 BL, respectively. The genetic linkage map of Pm64 is critical for fine mapping and cloning. Pm64 was completely linked in repulsion with stripe rust resistance gene Yr5. Analysis of a larger segregating population might identify a recombinant line with both genes as a valuable resource in breeding for resistance to powdery mildew and stripe rust. | Deyun Zhang Keyu Zhu Lingli Dong Yong Liang Genqiao Li Tilin Fang Guanghao Guo Qiuhong Wu Jingzhong Xie Yongxing Chen Ping Lu Miaomiao Li Huaizhi Zhang Zhenzhong Wang Yan Zhang Qixin Sun Zhiyong Liu | 2019 | The Crop Journal2019，7，6： | 8 |
| 3 | Arsenic trioxide promotes senescence and regulates the balance of adipogenic and osteogenic differentiation in human mesenchymal stem cells显示文摘砷三氧化物(ATO ) 能在肿瘤房间作为反肿瘤药导致区别和 apoptosis。间充质的干细胞(MSC ) 在骨头髓的造血作用起重要作用。许多报告证明了 MSC adipogenic 和 osteogenic 区别的混乱发生在一些疾病。然而,关于 MSC 上的 ATO 的效果的报告是有限的。在这研究,我们发现 1 M ATO 主要通过 p21 支持了 MSC 老朽,尽管它没在这剂量在 apoptosis 上有效果。而且, ATO 支持了 adipogenic 区别,但是在 MSC 禁止了 osteogenic 区别。我们的学习也显示出那 CCAAT/enhancer-binding 蛋白质 alpha C/EBP 和 peroxisome 激活 proliferator 的受体 gamma PPAR 可能涉及 ATO 导致的 adipogenic 和 osteogenic 区别的规定。我们的结果显示 ATO 可以由影响骨头髓微型环境施加反肿瘤效果。而且,它可以调整 MSC 的 adipogenic 和 osteogenic 区别。 | Huanchen Cheng Lin Qiu Hao Zhang Mei Cheng Wei Li Xuefei Zhao Keyu Liu Lei Lei Jun Ma | 2011 | Acta Biochimica et Biophysica Sinica2011，43，3： | 8 |
| 4 | Construction of a small-caliber tissue-engineered blood vessel using icariin-loaded β-cyclodextrin sulfate for in situ anticoagulation and endothelialization显示文摘The rapid endothelialization of tissue-engineered blood vessels(TEBVs) can effectively prevent thrombosis and inhibit intimal hyperplasia. The traditional Chinese medicine ingredient icariin is highly promising for the treatment of cardiovascular diseases.β-cyclodextrin sulfate is a type of hollow molecule that has good biocompatibility and anticoagulation properties and exhibits a sustained release of icariin. We studied whether icariin-loaded β-cyclodextrin sulfate can promote the endothelialization of TEBVs. The experimental results showed that icariin could significantly promote the proliferation and migration of endothelial progenitor cells; at the same time, icariin could promote the migration of rat vascular endothelial cells(RAVECs). Subsequently,we used an electrostatic force to modify the surface of the TEBVs with icariin-loaded β-cyclodextrin sulfate, and these vessels were implanted into the rat common carotid artery. After 3 months, micro-CT results showed that the TEBVs modified using icariin-loaded β-cyclodextrin sulfate had a greater patency rate. Scanning electron microscopy(SEM) and CD31 immunofluorescence results showed a better degree of endothelialization. Taken together, icariin-loaded β-cyclodextrin sulfate can achieve anticoagulation and rapid endothelialization of TEBVs to ensure their long-term patency. | Jingyuan Yang Keyu Wei Yeqin Wang Yanzhao Li Ning Ding Da Huo Tianran Wang Guanyuan Yang Mingcan Yang Tan Ju Wen Zeng Chuhong Zhu | 2018 | Science China(Life Sciences)2018，61，10： | 5 |
| 5 | Thermal stability of LiFePO_4/C-LiMn_2O_4 blended cathode materials显示文摘Safety is important to lithium ion battery materials. The thermal stability of LiFePO_4/C-LiMn_2O_4 blended cathode materials is characterized by using TG, XRD, and SEM etc. The results show that LiFePO_4/C-LiMn_2O_4 possesses a worse thermal stability than pure spinel LiMn_2O_4 and pure olivine LiFePO_4/C. When LiFePO_4/C-LiMn_2O_4 blended cathode materials are sintered at 500°C under Ar atmosphere, the sintered cathode materials emit O_2, and appear impurity phases(Li_3PO_4, Fe_2O_3, Mn_3O_4). It is deduced that some chemical reactions take place between different materials, which leads to a worse discharge specific capacity. LiFePO_4/C-LiMn_2O_4 blended cathode materials, therefore, need to be managed and controlled strictly for the sake of thermal stability and safety. | DU YuanChao HUANG XiaoPeng ZHANG KeYu LIANG Feng LI QiuXia YAO YaoChun DAI YongNian | 2017 | Science China(Technological Sciences)2017，60，1： | 5 |
| 6 | A novel microwave absorber——BaAl_2Fe_(10)O_(19)/poly(m-toluidine) composite:Preparation and electromagnetic properties显示文摘BaFe10Al2O19 /poly(m-toluidine)(BFA/PMT) composites were synthesized by in-situ polymerization of m-toluidine in the presence of BaFe10Al2O19 particles.The structure,composition and morphology of the obtained samples were characterized by using XRD,FT-IR,UV-visible spectroscopy,SEM and TEM techniques.Their electrical conductivity,magnetic property and microwave absorbing property were measured by the four-probe meter,the vibrating sample magnetometer and the vector network analyzer,respectively.The results indicated that BFA particles were coated effectively by PMT polymer and some interactions between PMT and BFA particles existing in the composites.The conductivity of BFA/PMT composite is smaller than that of pure polymers and its saturation magnetization is a little smaller than that of pure BFA.The influence of the constitution and film thickness of absorbent on its microwave absorbing property is evident.The microwave absorbing properties of the BFA/PMT composites are better than those of pure BFA and PMT.When optimizing the mass rate of BFA/PMT to 0.3,the absorbent with 2 mm film thickness has the minimum reflection loss of 28.26 dB at approximate 14.24 GHz,and the maximum available bandwidth of 8.8 GHz,respectively.The results show that these composites can be used as advancing absorption and shielding materials due to their favorable microwave absorbing property. | CHEN KeYu XU QingQing LI LiangChao GONG PeiJun CHEN HaiFeng XIAO QiuShi Xu Feng | 2012 | Science China Chemistry2012，55，7： | 4 |
| 7 | A Survey of Model Predictive Control Methods for Traffic Signal Control显示文摘Enhancing traffic efficiency and alleviating(even circumventing) traffic congestion with advanced traffic signal control(TSC) strategies are always the main issues to be addressed in urban transportation systems. Since model predictive control(MPC) has a lot of advantages in modeling complex dynamic systems, it has been widely studied in traffic signal control over the past 20 years. There is a need for an in-depth understanding of MPC-based TSC methods for traffic networks. Therefore, this paper presents the motivation of using MPC for TSC and how MPC-based TSC approaches are implemented to manage and control the dynamics of traffic flows both in urban road networks and freeway networks. Meanwhile, typical performance evaluation metrics, solution methods, examples of simulations,and applications related to MPC-based TSC approaches are reported. More importantly, this paper summarizes the recent developments and the research trends in coordination and control of traffic networks with MPC-based TSC approaches. Remaining challenges and open issues are discussed towards the end of this paper to discover potential future research directions. | Bao-Lin Ye Weimin Wu Keyu Ruan Lingxi Li Tehuan Chen Huimin Gao Yaobin Chen | 2019 | IEEE/CAA Journal of Automatica Sinica2019，6，3： | 4 |
| 8 | Controlled fabrication and electrical-magnetic properties of Poly(OT-co-AN)/Ba_(0.8)La_(0.2)Al_2Fe_(10)O_(19) composites显示文摘Poly(OT-co-AN)/Ba0.8La0.2Al2Fe10O19(Poly(OT-co-AN)/BLAF) composites were fabricated by in situ polymerization method.It was investigated that of mass rate of momomer(mOT/mAN),polymeration temperature and time,and feeding ratio of BLAF effect on the structures,morphology,conductivity,magnetic property of composites by the orthogonal optimum design.The results indicated that poly(OT-co-AN) copolymer had a better coating on BLAF particles,and there were some interactions between components in the composites.The magnetic properties of the composites were related to content of the magnetic BLAF particles in it.The feeding ratio of BLAF had a significant influence on constitute and conductivity of the composites,followed by the temperature.The reflection loss and the effective bandwidth of composites for electromagnetic wave were at-tributed to the synergistic effect between poly(OT-co-AN) and BLAF.The poly(OT-co-AN)/BLAF composites with mass ratio of BLAF to mix monomer(mOT/mAN =1:1) equal to 5/1 at 10 h in 25°C had a maximum synergistic effect between its compo-nents,showed a maximum reflection loss of ?26.94 dB at 14.10 GHz and an available bandwidth of 8.54 GHz.It was sug-gested that the composites can be used as a advancing absorption and shielding materials for electromagnetic wave due to their favorable microwave absorption properties. | CHEN KeYu XU QingQing LI LiangChao TONG GuoXiu QIAN HaiSheng XIAO QiuShi XU Feng | 2012 | Science China(Technological Sciences)2012，55，1： | 4 |
| 9 | State-target strategy:a bridge for the integration of Chinese and Western Medicine显示文摘The methods of Traditional Chinese Medicine(TCM)’s diagnosis and treatment have undergone several changes.It is crucial to build a proper model which is capable to modernize TCM into a both standardized and individualized treatment.Tong xiao-lin proposed the state-target strategy to build a bridge for the integration of Chinese and Western medicine.It is a model based on modern medical disease concepts and using the method of TCM to balance the pathological states and adopting the achievements of pharmacology of Chinese medicine to focus on the disease targets,symptom targets,and biochemical indicator targets.The reconstruction of TCM diagnosis and treatment system for diabetes is a good example to demonstrate this theory.It could improve the clinical efficacy,support the scientific research,and reinforce the standardization of TCM. | GOU Xiaowen GAO Zezheng YANG Yingying LI Qingwei TONG Xiaolin CHEN Keyu LEI Ye SONG Bin ZHAO Linhua | 2021 | Journal of Traditional Chinese Medicine2021，41，1： | 3 |
| 10 | Detection of Porcine Epidemic Diarrhea Virus in Guangxi Province from 2011 to 2014 and Sequence Analysis of Its M Gene显示文摘Detection of pigs epidemic diarrhea virus( PEDV) was conducted on 331 piglets diarrhea fecal samples collected in Nanning,Yulin and other 12 areas of Guangxi Province from January of 2011 to April of 2014 by the method of reverse transcription-polymerase chain reaction( RT-PCR). The results showed that the positive samples of PEDV were 210 and the positive rate was 63. 44%. The clone and sequencing of M gene was carried out on 25 positive samples. PEDV reference strains were selected from Gene Bank to conduct the sequence homology alignment analysis and the phylogenetic tree of M gene. The M gene homology and amino acid sequence identity between 25 isolated strains and 51 reference strains were 96. 0%- 99. 6% and 94. 3%- 99. 6%,respectively. The genetic variation analysis of M gene showed that the genetic relationship of PEDV prevalent strains in Guangxi Province from 2013 to 2014 was close to that of the prevalent strains in Beijing,Anhui,Wuhan,Hebei and Guangdong from 2010 to 2013,and which were far from that of the Chinese early isolates CH / S( Gen Bank number: JN547228),vaccine strain CV777( Gen Bank number: AF353511) and Attenuated DR13( Gen Bank number: JQ023162). Indicating that the PEDV strains prevalent in Guangxi in recent years showed significant variation with the early isolates. | Lu Bingxia Qin Yibin He Ying Li Yingying Liang Jiaxing Li Keyu Li Bin Su Qianlian Zhou Yingning Jiang Dongfu Lu Jingzhuan Bi Bingfen Liang Baozhong Duan Qunpeng Zhao Wu | 2016 | Animal Husbandry and Feed Science2016，8，1： | 3 |
| 11 | Origin of Oils in“Subtle pools”in the Dongying Depression,Bohai Bay Basin, China显示文摘摘要:微妙的陷井或油水池在 Dongying 消沉成为了一出重要探索戏, Bohai 海湾盆,华东。尽管有在探索的最近的成功,微妙的陷井的形成机制仍然不好被理解。在 Dongying 消沉的微妙的油水池的多数与主要具有在 mudstones 包含的透镜的盆地板 turbidite 沙的微妙的陷井在 Paleogene Shahejie 形成的 Es3 成员的中间的间隔被开发。在微妙的陷井的油以前被认为从一样的形成(Es3 ) 的包围来源岩石直接移植了。从消沉的 41 油和 41 件岩石样品的详细 geochemical 调查现在显示从微妙的陷井的油不能与包围 Es3 来源岩石被相关很好,它被高 Pr/Ph 描绘(> 1 ) ,低 Gammacerane/C30hopane,代表淡水湖的背景。在对比油特征低 Pr/Ph (< 1 ) 并且相对高的 Gammacerane 内容,与内在的 Es4 来源一起显示出一种基因亲密关系摇,它也有一样的质量,显示一个略有盐味的湖的背景。在 Es3 微妙的陷井的油可能从支配的上面的 Es4 来源岩石与贡献从混合来源被导出。要调用解释从 Es4 来源岩石分享油的因此异乎寻常的油迁居和累积机制需要,它可能通过 Es3 来源的厚低间隔来了摇没有明显结构或 stratigraphic 小径。我们建议微妙的油迁居小径可能这里起一个重要作用。这发现可以在 Dongying 消沉为未来探索和留下的资源评估有重要含意。 | LI Sumei JIANG Zhengxue LIU Keyu QIU Guiqiang GAO Yongjin | 2008 | Acta Geologica Sinica(English Edition)2008，82，1： | 3 |
| 12 | Basic fibroblast growth factor protects against influenza A virus-induced acute lung injury by recruiting neutrophils显示文摘Influenza virus (IAV)infection is a major cause of severe respiratory illness that affects almost every country in the world.IAV infections result in respiratory illness and even acute lung injury and death,but the underlying mechanisms responsible for IAV pathogenesis have not yet been fully elucidated.In this study,the basic fibroblast growth factor 2 (FGF2)level was markedly increased in H1N1 virus-infected humans and mice.FGF2,which is predominately derived from epithelial cells,recruits and activates neutrophils via the FGFR2-PI3K-AKT-NFKB signaling pathway.FGF2 depletion or knockout exacerbated influenzaassociated disease by impairing neutrophil recruitment and activation.More importantly,administration of the recombinant FGF2 protein significantly aUeviated the severity of IAV-induced lung injury and promoted the survival of IAV-infected mice.Based on the results from experiments in which neutrophils were depleted and adoptively transferred,FGF2 protected mice against IAV , infection by recruiting neutrophils.Thus,FGF2 plays a critical role in preventing IAV-induced lung injury,and FGF2 is a promising potential therapeutic target during IAV infection. | Keyu Wang Chengcai Lai Tieling Li Cheng Wang Wei Wang Bing Ni Changqing Bai Shaogeng Zhang Lina Han Hongjing Gu Zhongpeng Zhao Yueqiang Duan Xiaolan Yang Li Xing Lingna Zhao Shanshan Zhou Min Xia Chengyu Jiang Xiliang Wang Penghui Yang | 2018 | Journal of Molecular Cell Biology2018，10，6： | 3 |
| 13 | Inhibition of focal adhesion kinase enhances antitumor response of radiation therapy in pancreatic cancer through CD8+ T cells显示文摘Objective:Pancreatic ductal adenocarcinoma(PDAC)is a deadly malignancy,due in large part to its resistance to conventional therapies,including radiotherapy(RT).Despite RT exerting a modest antitumor response,it has also been shown to promote an immunosuppressive tumor microenvironment.Previous studies demonstrated that focal adhesion kinase inhibitors(FAKi)in clinical development inhibit the infiltration of suppressive myeloid cells and T regulatory(T regs)cells,and subsequently enhance effector T cell infiltration.FAK inhibitors in clinical development have not been investigated in combination with RT in preclinical murine models or clinical studies.Thus,we investigated the impact of FAK inhibition on RT,its potential as an RT sensitizer and immunomodulator in a murine model of PDAC.Methods:We used a syngeneic orthotopic murine model to study the effect of FAKi on hypofractionated RT.Results:In this study we showed that IN10018,a small molecular FAKi,enhanced antitumor response to RT.Antitumor activity of the combination of FAKi and RT is T cell dependent.FAKi in combination with RT enhanced CD8+T cell infiltration significantly in comparison to the radiation or FAKi treatment alone(P<0.05).FAKi in combination with radiation inhibited the infiltration of granulocytes but enhanced the infiltration of macrophages and T regs in comparison with the radiation or FAKi treatment alone(P<0.01).Conclusions:These results support the clinical development of FAKi as a radiosensitizer for PDAC and combining FAKi with RT to prime the tumor microenvironment of PDAC for immunotherapy. | Arsen Osipov Alex B.Blair Juliane Liberto Jianxin Wang Keyu Li Brian Herbst Yao Xu Shiqi Li Nan Niu Rufiaat Rashid Ding Ding Yanan Liu Zaiqi Wang Christopher L.Wolfgang Richard A.Burkhart Daniel Laheru Lei Zheng | 2021 | Cancer Biology & Medicine2021，18，1： | 3 |
| 14 | Geochemistry of Palaeozoic marine petroleum from the Tarim Basin, NW China: Part 3. Thermal cracking of liquid hydrocarbons and gas washing as the major mechanisms for deep gas condensate accumulations显示文摘 | Shuichang Zhang Jin Su Xiaomei Wang Guangyou Zhu Haijun Yang Keyu Liu Zhenxi Li | 2011 | Organic Geochemistry2011，，： | 2 |
| 15 | Depletion of VPS35 attenuates metastasis of hepatocellular carcinoma by restraining the Wnt/PCP signaling pathway显示文摘Vesicle Protein Sorting 35(VPS35)is a novel oncogene that promotes tumor growth through the PI3K/AKT signaling in hepatocellular carcinoma(HCC).However,the role of VPS35 in HCC metastasis and the underlying mechanisms remain largely unclear.In this study,we observed that overexpression of VPS35 enhanced hepatoma cell invasion and metastasis by inducing epithelialemesenchymal transition(EMT)-related gene expression.Conversely,knockout of VPS35 significantly inhibited hepatoma cell migration and invasion.Furthermore,depletion of VPS35 decreased the lung metastasis of HCC in nude mice.By transcriptome analysis,we determined that VPS35 promoted HCC metastasis by activating the Wnt/non-canonical planar cell polarity(PCP)pathway.Mechanistically,VPS35 activated the PCP pathway by regulating membrane sorting and trafficking of Frizzled-2(FZD2)and ROR1 in hepatoma cells.Collectively,our results indicate that VPS35 promotes HCC metastasis via enhancing the Wnt/PCP signaling,thus providing a potential prognostic marker and therapeutic target for HCC. | Yi Liu Haijun Deng Li Liang Guiji Zhang Jie Xia Keyue Ding Ni Tang Kai Wang | 2021 | Genes & Diseases2021，8，2： | 2 |
| 16 | Quantitative prediction of mixed-source crude oils and its significance for understanding oil accumulation in subtle pools in the Dongying Depression,Bohai Bay Basin显示文摘常规 geochemical 途径在原油从 Paleogene Shahejie 形成的 Es3 和 Es4 成员导出的混合来源的比例的量的预言被利用。混合来源油在 Niuzhuang 在 Es3 成员(Es3 M ) 的中间的间隔被积累下垂,它是微妙的陷井在主要在 Dongying 消沉开发的 mudstones 以内的透镜的盆地板 turbidite 沙主要的 sags 之一, Bohai 海湾盆。结果证明大约 1892% 混合来源油与 5560% 的一般水准从 Es4 来源岩石被导出。与深差错联系的水库看起来有基因亲密关系上油的更多 Es4。导出 Es4 的油的一个高比例在 Es3 M 微妙的 lithological 发现在 Niuzhuang 的陷井下垂有长迁居距离。这建议包围来源岩石可能未必为微妙的陷井控制烃供应。微妙的迁居小径可以在垂直的油迁居起一个重要作用。在在从包围来源岩石的短迁居距离以内的这些透镜的 turbidite 沙岩陷井的烃累积的传统的概念是没由这研究支持。现在的结果与我们在在 Niuzhuang 的南方斜坡的 Bamianhe 油矿的不成熟的油下垂的以前的调查结果也一致实际上是主要在 Niuzhuang 的 depocenter 从 Es4 采购的混合来源油下垂,并且在 Dongying 消沉的 Es4 成员的石油潜力应该因此被重新估计。 | Li Sumei Liu Keyu Pang Xiongqi Li Maowen Jiang Zhenxue Qiu Guiqiang Gao Yongjin | 2008 | Petroleum Science2008，5，3： | 2 |
| 17 | Multi-level modulation scheme based on PAK algorithm for optical camera communications显示文摘In an optical camera communication(OCC) system, multi-level modulation is essential for data rate enhancement with the finite frame rate of the receiving camera constraint, where the K-means algorithm is widely used as a thresholding scheme. The result of K-means clustering is sensitive to initial cluster centers. In this paper, we propose a multi-level modulation scheme utilizing the pilot-aided K-means(PAK) algorithm. PAK algorithm innovates in both obtaining the state of the stripes propagated through the optical channel under different environments and overcoming the susceptibility of K-means. Our scheme could prompt data rate and improve the performance of OCC. Finally, non-orthogonal multiple access(NOMA) pattern is designed based on the proposed scheme to achieve multiplex communications. | WU Jing CHI Xuefen JI Fenglei JIANG Keyu CHEN Shaoqi LI Shuai | 2022 | Optoelectronics Letters2022，18，3： | 2 |
| 18 | Implications from Subseasonal Prediction Skills of the Prolonged Heavy Snow Event over Southern China in Early 2008显示文摘An exceptionally prolonged heavy snow event(PHSE)occurred in southern China from 10 January to 3 February 2008,which caused considerable economic losses and many casualties.To what extent any dynamical model can predict such an extreme event is crucial for disaster prevention and mitigation.Here,we found the three S2S models(ECMWF,CMA1.0 and CMA2.0)can predict the distribution and intensity of precipitation and surface air temperature(SAT)associated with the PHSE at 10-day lead and 10−15-day lead,respectively.The success is attributed to the models’capability in forecasting the evolution of two important low-frequency systems in the tropics and mid-latitudes[the persistent Siberian High and the suppressed phase of the Madden−Julian Oscillation(MJO)],especially in the ECMWF model.However,beyond the 15-day lead,the three models show almost no skill in forecasting this PHSE.The bias in capturing the two critical circulation systems is responsible for the low skill in forecasting the 2008 PHSE beyond the 15-day lead.On one hand,the models cannot reproduce the persistence of the Siberian High,which results in the underestimation of negative SAT anomalies over southern China.On the other hand,the models cannot accurately capture the suppressed convection of the MJO,leading to weak anomalous southerly and moisture transport,and therefore the underestimation of precipitation over southern China.The Singular Value Decomposition(SVD)analyses between the critical circulation systems and SAT/precipitation over southern China shows a robust historical relation,indicating the fidelity of the predictability sources for both regular events and extreme events(e.g.,the 2008 PHSE). | Keyue ZHANG Juan LI Zhiwei ZHU Tim LI | 2021 | Advances in Atmospheric Sciences2021，38，11： | 2 |
| 19 | Structure and digestibility of endosperm water-soluble α-glucans from different sugary maize mutants显示文摘 | Ming Miao Rong Li Bo Jiang Steve W. Cui Keyu Lu Tao Zhang | 2014 | Food Chemistry2014，，： | 1 |
| 20 | CM-Droid: Secure Container for Android Password Misuse Vulnerability显示文摘Android applications are associated with a large amount of sensitive data,therefore application developers use encryption algorithms to provide user data encryption,authentication and data integrity protection.However,application developers do not have the knowledge of cryptography,thus the cryptographic algorithm may not be used correctly.As a result,security vulnerabilities are generated.Based on the previous studies,this paper summarizes the characteristics of password misuse vulnerability of Android application software,establishes an evaluation model to rate the security level of the risk of password misuse vulnerability and develops a repair strategy for password misuse vulnerability.And on this basis,this paper designs and implements a secure container for Android application software password misuse vulnerability:CM-Droid. | Wen Zhang Keyue Li Tianyang Li Shaozhang Niu Zhenguang Gao | 2019 | Computers, Materials & Continua2019，，4： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员