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| 1 | 区域物流能力与区域经济发展的典型相关分析——基于全国面板数据显示文摘从物流基础设施、物流经济产出、物流产业规模等方面的指标体系入手,构建包含区域经济产出、社会物资需求、基础设施投资等方面的区域经济指标体系。基于2003~2008年中国31个省市的面板数据,利用典型相关分析方法对区域物流能力与区域经济发展进行实证分析。结果表明区域物流能力与区域经济发展高度相关,并结合其他统计分析结果数据提出了促进区域物流能力发展的建议。 | 李全喜 金凤花 孙磐石 | 2010 | 软科学2010，24，12： | 104 |
| 2 | Digital Twins and Cyber Physical Systems toward Smart Manufacturing and Industry 4.0:Correlation and Comparison显示文摘State-of-the-art technologies such as the Internet of Things(IoT),cloud computing(CC),big data analytics(BDA),and artificial intelligence(AI)have greatly stimulated the development of smart manufacturing.An important prerequisite for smart manufacturing is cyber-physical integration,which is increasingly being embraced by manufacturers.As the preferred means of such integration,cyber-physical systems(CPS)and digital twins(DTs)have gained extensive attention from researchers and practitioners in industry.With feedback loops in which physical processes affect cyber parts and vice versa,CPS and DTs can endow manufacturing systems with greater efficiency,resilience,and intelligence.CPS and DTs share the same essential concepts of an intensive cyber-physical connection,real-time interaction,organization integration,and in-depth collaboration.However,CPS and DTs are not identical from many perspectives,including their origin,development,engineering practices,cyber-physical mapping,and core elements.In order to highlight the differences and correlation between them,this paper reviews and analyzes CPS and DTs from multiple perspectives. | Fei Tao Qinglin Qi Lihui Wang A.Y.C.Nee | 2019 | Engineering2019，5，4： | 84 |
| 3 | 一种基于QPSO-RVM的模拟电路故障预测方法显示文摘提出了一种可应用于模拟电路故障预测的方法。通过提取被测电路的频域响应信号,计算皮尔逊相关系数,从而表征电路元件的健康度;在获取元件在不同时间点的健康度数据的基础上,推导出电路元件发生故障时的健康度阈值;将经量子粒子群算法优化的相关向量机算法用于故障预测,预测各个时间点的元件健康度变化轨迹并估计模拟电路的剩余有用寿命。该预测方法计算简单、通用性强,适用于实时预测。故障预测仿真实验与实例实验证明了方法的有效性与先进性。 | 张朝龙 何怡刚 邓芳明 袁莉芬 何威 | 2014 | 仪器仪表学报2014，35，8： | 25 |
| 4 | Genesis of Daba arcuate structural belt related to adjacent basement upheavals:Constraints from Fission-track and (U-Th)/He thermochronology显示文摘Fission-track, (U-Th)/He thermochronology, and cooling properties indicate that the southern Daba arcuate zone (SDBAZ) underwent a distinctive phase of rapid cooling in 153-100 Ma at a rate of 1.44-1.90°C/Ma. This rapid uplifting strongly contrasts with (1) the previous, rapid foreland subsidence during Early to Middle Jurassic in response to late-orogenic compression from the Qinling belt, (2) the succeeding long, slow cooling phase and relative thermal stability that occurred during the 100-45 Ma period. This rapid cooling event in the SDBAZ parallels those experienced by two adjacent upheavals of Huangling (HLUZ) and Hannan-Micang (HMUZ), with cooling rates of 2.22-3.17°C/Ma for the HLUZ in 160-126 Ma, 4.91°C/Ma for the southern HMUZ in 150-125 Ma, as well as 2.11°C/Ma for the northern HMUZ in 150-105 Ma. Comparing thermal histories among the SDBAZ, the HLUZ, the HMUZ, and the Wudang metamorphic zone (WDMZ), we infer that the Daba arcuate structural belt formed in 153-100 Ma. The combined dating data support a correlation with a low-angle arcuate south-thrusting of the Qinling orogen triggered by northward convergence of the Yangtze Craton, contemporaneously encountering rigid basement obstructions from the HLUZ and the HMUZ, respectively. Both the SDBAZ and neighboring domains additionally underwent a comparatively fast cooling and uplift since about 45 Ma. | GUILLOT Franois | 2010 | Science China Earth Sciences2010，53，11： | 24 |
| 5 | 金川Ⅰ号岩体橄榄石Ni-MgO相互关系及其地质意义显示文摘金川超镁铁质岩体赋存着仅次于加拿大Sudbury和俄罗斯Noril'sk-Talnakh的世界第三大在采铜镍硫化物矿床,岩体以一系列的NE向断层为界分成四个小岩体,由西至东依次为:Ⅲ、Ⅰ、Ⅱ、Ⅳ岩体。Ⅰ号岩体主要由二辉橄榄岩、含辉橄榄岩和橄榄二辉岩构成,橄榄石在各岩相中均为保存较好的主要造岩矿物。本文研究得到金川Ⅰ号岩体上部二辉橄榄岩和含辉橄榄岩中橄榄石的镁橄榄石Fo值介于83.9~85.7,而其Ni含量为1396×10^(-6)~2043×10^(-6),大多低于从S不饱和玄武岩浆中结晶出采的橄榄石的Ni含量。模拟计算结果表明橄榄石较低的Ni含量是因为橄榄石结晶的同时,发生了强烈的硫化物熔离;橄榄石的Fo-Ni关系还因与晶间硅酸盐熔浆的物质交换而发生改变。模拟计算还证明大约有30%的晶间硅酸盐岩浆与橄榄石发生Fe-Mg物质交换反应,导致早结晶橄榄石的Fo值减少了1~1.5。同时,橄榄石较小的Fo值变化表明,在橄榄石结晶和硫化物熔离过程中,不断有新的岩浆贯入和补充。 | 陈列锰 宋谢炎 Danyushevsky LV 肖加飞 李士彬 官建祥 | 2009 | 岩石学报2009，25，12： | 22 |
| 6 | Relation of chaos activity characteristics of the cardiac system with the evolution of species显示文摘According to the nonlinear theory, the experiments have been conducted on sample ECG (electrocardiogram) signals of healthy human beings, coronary heart disease patients and adult canines. On the basis of the analyses of the power spectra, the computation of the correlation dimension and the Lyapunov exponent to a large number of ECG signals, the following conclusions are shown: through the comparative research, (1) the analyses of the power spectra, the computation of the correlation dimension and the Lyapunov exponent to the ECG signals reflect the whole dynamic characteristics of the hearts, and they may become a new method of researching ECG quantitatively to an early diagnose of heart disease. (2) Under normal physiological conditions the cardiac activities are chaotic, while under pathologic conditions the cardiac activities approach regularity. (3) On the basis of the comparative research of human beings and canines, it is revealed that chaos may be a quantitative index to measure the evolution | WANG XingyuanSchool of Electronic and Information Engineering, Dalian University of Technology, Dalian 116024, China | 2002 | Chinese Science Bulletin2002，47，24： | 21 |
| 7 | 雷琼地区晚新生代玄武岩地球化学:EM2成分来源及大陆岩石圈地幔的贡献显示文摘对雷琼地区21个晚新生代玄武岩样品的主量、微量元素和Sr、Nd、Pb同位素分别用湿化学法、ICP-MS和MC-ICPMS进行了测定。这些玄武岩主要为石英拉斑玄武岩,其次为橄榄拉斑玄武岩和碱性玄武岩。大多数样品的微量元素和同位素成分与洋岛玄武岩(OIBs)相似,而且随着SiO_2不饱和度增加,不相容元素含量也增加。除R4-1可能受到地壳混染外,其他样品相对均一的Nd同位素(ε_(Nd)=2.5~6.0)以及变化明显但范围有限的Sr同位素(0.703106~0.704481),可能继承了地幔源区的特征。^(87)Sr/^(86)Sr与^(206)Pb/^(204)Pb的正相关和^(143)Nd/^(144)Nd与^(206)Pb/^(204)Pb的负相关特征暗示DM(软流圈地幔)与EM2(岩石圈地幔)的混合。地幔捕虏体的同位素特征暗示EM2成分不可能存在于尖晶石橄榄岩地幔,而La/Yb和Sm/Yb系统表明岩浆由石榴石橄榄岩部分熔融产生,这意味着EM2成分可能存在于石榴石橄榄岩地幔。雷琼地区玄武岩的地球化学变化可以用软流圈地幔为主的熔体加入不同比例石榴石橄榄岩地幔不同程度熔融产生的熔体来解释:碱性玄武岩和橄榄拉斑玄武岩是软流圈熔体与石榴石橄榄岩地幔较低程度(7%~9%)熔融体混合,而石英拉斑玄武岩是软流圈熔体与石榴石橄榄岩地幔较高程度(10%~20%)熔融体的混合。 | 韩江伟 熊小林 朱照宇 | 2009 | 岩石学报2009，25，12： | 20 |
| 8 | Relations between oxygen stable isotopic ratios in precipitation and relevant meteorological factors in southwest China显示文摘The correlations of isotopic ratios in precipitation with temperature, air pressure and humidity at dif- ferent altitudes, in southwest China, are analyzed. There appear marked negative correlations for the δ 18O in precipitation with precipitation amount, vapor pressure and atmospheric precipitable water (PW) at Mengzi, Simao and Tengchong stations on synoptic timescale; the marked negative correlations between the δ 18O in precipitation and the diurnal mean temperature at 400 hPa, 500 hPa, 700 hPa and 850 hPa are different from the temperature effect in middle-high-latitude inland. Moreover, the notable positive correlation between the δ 18O in precipitation and the dew-point deficit △Td at different altitudes is found at the three stations. On annual timescale, the annual precipitation amount weighted mean δ 18O display the negative correlations not only with annual precipitation but also with annual mean temperature at 500 hPa. It can be deduced that, in the years with abnormally strong summer monsoon, more warm and wet air from low-latitude oceans is transported northward along the vapor channel located in southwest China and generates abnormally strong rainfall on the way. Meanwhile, the ab- normally strong condensation process will release more condensed latent heat into atmosphere, and lead to the rise of atmospheric temperature during rainfall, but decline of the δ 18O in precipitation. On the contrary, in the years with abnormally weak summer monsoon, the abnormally weak condensation process will release less condensed latent heat into atmosphere, and lead to the decline of atmos- pheric temperature during rainfall, but increase of the δ 18O in precipitation. | ZHANG XinPing LIU JingMiao SUN WeiZheng HUANG YiMin ZHANG JianMing | 2007 | Science China Earth Sciences2007，50，4： | 17 |
| 9 | Global aridification in the second half of the 20th century and its relationship to large-scale climate background显示文摘The variation in surface wetness index (SWI), which was derived from global gridded monthly precipi- tation and monthly mean surface air temperature datasets of Climatic Research Unit (CRU), from 1951― 2002 over global land was analyzed in this paper. The characteristics of the SWI variation in global continents, such as North America, South America, Eurasia, Africa, and Australia, were compared. In addition, the correlation between the SWI variation of each continent (or across the globe) and the large-scale background closely related to SST variations, which affects climate change, was analyzed. The results indicate that the SWI variation shows distinct regional characteristics in the second half of the 20th century under global warming. A drying trend in the last 52 years occurred in Africa, Eurasia, Australia and South America, most obviously in Africa and Eurasia. North America shows a wetting trend after 1976. A 30-year period of dry-wet oscillation is found in South America and Australia; the latest is in a drying period in two regions. The results also revealed that global warming has changed the dry-wet pattern of the global land. South America and Australia have a drying trend despite in- creases in precipitation. This indicates that increases in surface air temperature cannot be ignored in aridification studies. Global dry-wet variation is closely related to large-scale SST variations: the drying trend in Africa and Eurasia and the wetting trend in North America are correlated with Pacific Decadal Oscillation (PDO); the interdecadal oscillation of SWI in South America and Australia is consistent with the interdecadal variation in Southern Oscillation Index (SOI). | MA ZhuGuo FU CongBin | 2007 | Science China Earth Sciences2007，50，5： | 17 |
| 10 | Expression of COX-2 and HER-2 in colorectal cancer and their correlation显示文摘AIM: To detect the expression of COX-2 and HER-2 in colorectal cancer and to analyze their correlation and clinical significance.METHODS: A total of 1026 colorectal cancer surgical specimens were collected from patients treated fromDecember 2002 to December 2007 at the First Affiliated Hospital of Anhui Medical University. All specimens were made into 4-μm slices. The expression of COX-2 and HER-2 were detected by immunohistochemistry using the streptavidin-biotin-peroxidase method. The correlations between COX-2 and HER-2 expression and colorectal cancer clinical features were analyzed.RESULTS: The positive rates of COX-2 and HER-2 expression in colorectal cancer were 77.97%(800/1026) and 46.20%(474/1026), respectively. There was a significant correlation between COX-2 and HER-2 expression in colorectal cancer(P < 0.05). In patients with tumor size ≥ 5 cm, the positive rates of COX-2 and HER-2 expression were 81.48%(308/378) and 57.94%(219/378), respectively. In patients with serosal invasion, the positive COX-2 and HER-2 expression rates were 80.53%(612/760) and 49.21%(374/760), respectively. In patients with lymph node metastasis, the positive expression rates were 85.04%(506/595) and 54.62%(325/595), respectively, and the positive expression rates differed significantly between patients with lymph node metastasis and those without(P < 0.05). In patients with Duke's C and D colorectal cancer, the positive COX-2 and HER-2 expression rates were 82.80%(443/535) and 57.94%(310/535), respectively. In patients with poorly differentiated colorectal cancer, the positive expression rates were 74.49%(210/282) and 52.84%(149/282), respectively(P < 0.05). In patients with distant metastasis, the positive expression rates were 82.27%(116/141) and 53.90%(76/141), respectively(P < 0.05). These findings suggest that COX-2 and HER-2 have synergistic effects in colorectal cancer. COX-2 and HER-2 expression had no significant correlation with sex, age, or tumor location. CONCLUSION: COX-2 and HER-2 are important markers for invasion and metastasis of colorectal cancer, and they act together to regulate the invasion and metastasis of colorectal cancer. | Qi-Bing Wu Guo-Ping Sun | 2015 | World Journal of Gastroenterology2015，21，20： | 17 |
| 11 | Lipid levels in serum and cancerous tissues of colorectal cancer patients显示文摘AIM:To investigate the correlations between lipid metabolism disorder and the occurrence and development of colorectal cancer by monitoring the alterations in lipid levels in cancerous tissue and serum in patients with colorectal cancer.METHODS:The levels of total and free cholesterol(TCH and FCH),triglycerides(TG),low density lipoprotein-cholesterol(LDL-C),high density lipoprotein-cholesterol(HDL-C),apolipoprotein A1(ApoA-1)and ApoB in serum of 206 patients with colorectal cancer,70patients with benign colorectal disease and 300 healthy participants,and in the cancerous tissue and paracancerous tissue of 152 patients with colorectal cancer were measured with an Olympus 600 auto-biochemical analyzer.The obtained data were statistically analyzed.RESULTS:Serum FCH level was significantly higher(1.9±0.4 mmol/L vs 1.3±0.3 mmol/L,1.9±0.4 mmol/L vs 1.2±0.4 mmol/L,P<0.05),whereas serum levels of TCH,LDL-C,ApoA-I and ApoB were significantly lower in patients with colorectal cancer than in patients with benign colorectal disease and healthy controls.The levels of FCH and TG in cancerous tissue were significantly lower(14.5±9.6μmol/g vs 19.3±13.9μmol/g,P<0.05;16.3±19.8μmol/g vs 44.1±38.1μmol/g,P<0.05),whereas HDL-C level was significantly higher(7.9±4.5μmol/g vs 5.7±3.9μmol/g,P<0.01)in cancerous tissue than in paracancerous tissue.The levels of TCH and TG in serum and the levels of TCH and HDL-C in cancerous tissue in patients with colorectal cancer were significantly correlated with TNM stage.The levels of TCH and LDL-C in serum were significantly lower,whereas HDL-C level in cancerous tissue was significantly higher in patients with lymph node metastasis than in patients without lymph node metastasis.The levels of TCH,FCH,TG,HDL-C and LDL-C in cancerous tissue were not significantly different from those in paracancerous tissue.The serum levels of FCH and TG were significantly higher,whereas serum HDL-C levels were significantly lower in patients with rectum cancer than in patients with colon cancer.CONCLUSION:The disordered and abnormally altered levels of lipids in cancerous tissue and serum of patients with colorectal cancer may be correlated with the occurrence and development of colorectal cancer. | Xin Zhang Xian-Wen Zhao Dong-Bo Liu Cun-Zhi Han Li-Li Du Jie-Xiang Jing Yan Wang | 2014 | World Journal of Gastroenterology2014，20，26： | 16 |
| 12 | 华北克拉通南缘安沟群的SHRIMP年龄及地层对比显示文摘华北克拉通南缘安沟群的时代及地层划分对比一直存有争议。侵吞安沟群的许台花岗岩原划为古元古代,本文通过SHRIMP测试,获得其精确的形成年龄为2503±11Ma。安沟群石梯沟组变质酸性火山岩的SHRIMP锆石U-Pb年龄为2521±11Ma,安沟群寨沟组变质酸性火山岩的SHRIMP锆石U-Pb年龄为2517±12Ma,表明安沟群形成于新太古代,与登封群和五台群的形成时代基本一致。安沟群地层的原岩组合为基性火山岩—中酸性火山岩、泥质-碎屑沉积岩和少量碳酸盐岩,总体上与登封群和五台群的原岩组合类似。 | 杨崇辉 杜利林 任留东 万渝生 宋会侠 原振雷 王世炎 | 2009 | 岩石学报2009，25，8： | 14 |
| 13 | 直立型川麦冬黄酮含量变化规律的初步研究(英文)显示文摘[Objective] The experiment aimed to inquire into the regular pattern of the flavonoids content in erect type Ophiopogon jaonicus preliminarily.[Methods]In the main Ophiopogon jaonicus-producing area,we use the method of home position dynamic method to gather sample for experiments,use UV to determine the flavonoids content in Ophiopogon jaonicus and use correlation and regression method to analyze the relation between flavonoids content and the growth period of Ophiopogon jaonicus.[Results]The relation between flavonoids content(y1)and the growth period(x∥d)of erect type Ophiopogon jaonicus is:y=1.235 6lnx-4.748 9(n=7,50≤x≤730,0≤y≤3.128,r0.001=0.950 7,r=0.954 2).[Conclusion]During a determinate time(50≤x≤730),positive correlation exists between flavonoids content and the growth period of Ophiopogon jaonicus.Our research has a great importance in directing the scientific harvest and GAP production of erect type Ophiopogon jaonicus. | 郭星 程方叙 廖政 张兴国 曹原湘 文便便 | 2008 | Agricultural Science & Technology2008，9，5： | 14 |
| 14 | Specimen aspect ratio and progressive field strain development of sandstone under uniaxial compression by three-dimensional digital image correlation显示文摘The complete stress-strain characteristics of sandstone specimens were investigated in a series of quasistatic monotonic uniaxial compression tests.Strain patterns development during pre-and post-peak behaviours in specimens with different aspect ratios was also examined.Peak stress,post-peak portion of stress-strain,brittleness,characteristics of progressive localisation and field strain patterns development were affected at different extents by specimen aspect ratio.Strain patterns of the rocks were obtained by applying three-dimensional(3D) digital image correlation(DIC) technique.Unlike conventional strain measurement using strain gauges attached to specimen,3D DIC allowed not only measuring large strains,but more importantly,mapping the development of field strain throughout the compression test,i.e.in pre-and post-peak regimes.Field strain development in the surface of rock specimen suggests that strain starts localising progressively and develops at a lower rate in pre-peak regime.However,in post-peak regime,strains increase at different rates as local deformations take place at different extents in the vicinity and outside the localised zone.The extent of localised strains together with the rate of strain localisation is associated with the increase in rate of strength degradation.Strain localisation and local inelastic unloading outside the localised zone both feature post-peak regime. | H. Munoz A. Taheri | 2017 | Journal of Rock Mechanics and Geotechnical Engineering2017，9，4： | 13 |
| 15 | Uniaxial experimental study of the acoustic emission and deformation behavior of composite rock based on 3D digital image correlation(DIC)显示文摘In this paper, uniaxial compression tests were carried out on a series of composite rock specimens with different dip angles, which were made from two types of rock-like material with different strength. The acoustic emission technique was used to monitor the acoustic signal characteristics of composite rock specimens during the entire loading process. At the same time, an optical non-contact 3 D digital image correlation technique was used to study the evolution of axial strain field and the maximal strain field before and after the peak strength at different stress levels during the loading process. The effect of bedding plane inclination on the deformation and strength during uniaxial loading was analyzed. The methods of solving the elastic constants of hard and weak rock were described. The damage evolution process, deformation and failure mechanism, and failure mode during uniaxial loading were fully determined. The experimental results show that the θ = 0?–45?specimens had obvious plastic deformation during loading, and the brittleness of the θ = 60?–90?specimens gradually increased during the loading process. When the anisotropic angle θincreased from 0?to 90?, the peak strength, peak strain,and apparent elastic modulus all decreased initially and then increased. The failure mode of the composite rock specimen during uniaxial loading can be divided into three categories:tensile fracture across the discontinuities(θ = 0?–30?), slid-ing failure along the discontinuities(θ = 45?–75?), and tensile-split along the discontinuities(θ = 90?). The axial strain of the weak and hard rock layers in the composite rock specimen during the loading process was significantly different from that of the θ = 0?–45?specimens and was almost the same as that of the θ = 60?–90?specimens. As for the strain localization highlighted in the maximum principal strain field, the θ = 0?–30?specimens appeared in the rock matrix approximately parallel to the loading direction,while in the θ = 45?–90?specimens it appeared at the hard and weak rock layer interface. | Jian-Long Cheng Sheng-Qi Yang Kui Chen Dan Ma Feng-Yuan Li Li-Ming Wang | 2017 | Acta Mechanica Sinica2017，33，6： | 13 |
| 16 | Spatial structure and scale feature of the atmospheric pollution source impact of city agglomeration显示文摘The spatial structure and multi-scale feature of the atmospheric pollution influence domain of Beijing and its peripheral areas (a rapidly developed city agglomeration) is dissected and analyzed in this paper on the basis of the atmospheric pollution dynamic-chemical process observation data of the urban building ensemble boundary layer of the Beijing City Air Pollution Observation Experiment (BECAPEX) in winter (February) and summer (August) 2003, and relevant meteorological elements and satellite retrieval aerosol optical depth (AOD), etc. comprehensive data with the dynamic-statistical integrated analysis of 'point-surface' spatial structure. Results show that there existed significant difference in the contribution of winter/summer different pollution emission sources to the component character of atmospheric pollution, and the principal component analysis (PCA) results of statistical model also indicate that SO2 and NOX dominated in the component structure of winter aerosol particle; instead, CO and NOX dominated in summer. Surface layer atmospheric dynamic and thermal structures and various pollutant species at the upper boundary of building ensembles at urban different observational sites of Beijing in winter and summer showed an 'in-phase' variation and its spatial scale feature of 'influence domain'. The power spectrum analysis (PSA) shows that the period spectrum of winter/summer particle concentration accorded with those of atmospheric wind field: the longer period was dominative in winter, but the shorter period in summer, revealing the impact of the seasonal scale feature of winter/summer atmospheric general circulation on the period of atmospheric pollution variations. It is found that from analyzing urban area thermal heterogeneity that the multiscale effect of Beijing region urban heat island (UHI) was associated with the heterogeneous expansion of tall buildings area. In urban atmospheric dynamical and thermal characteristic spatial structures, the turbulent scale feature of the urban boundary layer (UBL) of architectural complexes had important impact on the multi-scale feature of urban atmospheric pollution. The comprehensive analyses of the variational analysis field of Moderate Resolution Imaging Spectroradiometer (MODIS) AOD-surface PM10 under the condition of clear sky and the correlation resultant wind vector field for pollution source-tracing suggest that the emission sources for winter Beijing atmospheric pollution aerosols particle might be remotely traced to the south peripheral greater-scale spatial range of Hebei, Shandong, Tianjin, etc., and the spatial distribution of the high value area of AOD was associated with that of the high value area of resident family number (heating surface source). The backward trajectory feature of winter/ summer air particles exhibits analogous multi-scale feature, and depicts the difference in the scale feature of the pollution sources spatial distribution in different seasons. The peripheral source trajectory paths of urban atmospheric pollution (UAP) mainly come from the fixed industrial surface source or heating surface source in the outskirt of Beijing, and the diffusion and transport distance of peripheral sources in winter is larger than one in summer. The above conclusions depict the multi-scale spatial influence domain and seasonal features caused by UAP source influence and atmospheric dynamical structure. The high value area of the winter Total Ozone Mapping Spectrometer (TOMS) AOD lay in the Beijing region and its south peripheral area, an S-N zonal pattern, which reflects the dynamical effect of peripheral topographic pattern on the diffusion of regional scale atmospheric pollution sources. Study suggests that the extent of winter atmospheric pollution within the 'valley' megarelief in Beijing and periphery was close related with the pollution emission sources of the south peripheral area; and the significant 'anti-phase' variation feature of winter AOD and sunshine duration in Beijing and its peripheral areas, and regional scale correlation of low cloud cover, fog days, and aerosols reflects the local climatic effect of aerosol influence in this region. Besides, analysis of the impacts of atmospheric dry/wet deposition distributions within a valley-scale on the regional water body of Miyun reservoir also reveals the possible influence of the multi-scale spatial structure of summer water, soil and atmospheric pollution sources on the water quality of Miyun reservoir. | XU Xiangde ZHOU Xiuji SHI Xiaohui | 2005 | Science China Earth Sciences2005，48，z2： | 13 |
| 17 | Distribution of correlation dimensions of synchronous 12-lead ECG signals显示文摘Correlation dimensions D2 of the synchronous 12-lead ECG signals have been investigated for the first time by distributed multi-sensor (multi-electrode) technique. The results show that correlation dimension of heart has the distributed characteristics. D2 calculated from different lead ECG signals is not a constant regardless of a healthy person or a coronary heart disease (CHD) patient with sinus rhythm. But with the same lead signal, D2 of CHD patients is evidently smaller than that of a healthy person except I, II, III leads. A healthy person and CHD patient can be identified by D2 statistically and D2 shows the potential application in the diagnosis of the CHD patients. | WANG Zhenzhou NING Xinbao ZHANG Yu DU Gonghuan | 2000 | Chinese Science Bulletin2000，45，17： | 13 |
| 18 | 信息化创新、内部控制和操作风险控制的相关性研究显示文摘借助于结构方程模型,信息化创新、内部控制和操作风险控制相关性的经验性分析可以有效地揭示国有商业银行信息化创新对内部控制和操作风险控制的微观激励性机理,为国有商业银行进一步提高信息化效率、加强内部控制和操作风险控制提供现实性的理论借鉴。 | 张同建 吕宝林 | 2010 | 软科学2010，24，12： | 12 |
| 19 | Testing Serial Correlation in Partially Linear Additive Models显示文摘As an extension of partially linear models and additive models, partially linear additive model is useful in statistical modelling. This paper proposes an empirical likelihood based approach for testing serial correlation in this semiparametric model. The proposed test method can test not only zero first-order serial correlation, but also higher-order serial correlation. Under the null hypothesis of no serial correlation, the test statistic is shown to follow asymptotically a chi-square distribution. Furthermore, a simulation study is conducted to illustrate the performance of the proposed method. | Jin YANG Chuan-hua WEI | 2019 | Acta Mathematicae Applicatae Sinica2019，35，2： | 12 |
| 20 | 基于广义相关系数自适应随机共振的液压泵振动信号预处理方法显示文摘针对液压泵故障振动信号信噪比低,故障特征难以提取的问题,对液压泵振动信号预处理方法进行研究。针对现有自适应随机共振优化算法及其目标函数存在的问题,将量子遗传算法(Quantum Genetic Algorithm,QGA)引入自适应随机共振中,提出一种改进的自适应随机共振的信号预处理方法。该方法以广义相关系数为目标函数,采用QGA算法对随机共振系统的结构参数进行优化,从而实现对信号的降噪预处理。仿真及实验结果表明,该方法能够有效提取强噪声背景下的液压泵振动信号频率特征,是液压泵故障特征提取及故障诊断中信号预处理的有效方法,可进一步发展至实际工程应用。 | 经哲 郭利 | 2016 | 振动与冲击2016，35，16： | 11 |
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