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16篇 您的检索式:作者名="Han Baoping"
    题名 作者 年代 出处 被引量
1Optimum conditions to treat high-concentration microparticle slime water with bioflocculants显示文摘We studied how bioflocculants,produced by white-rot fungi,affect flocculation in slime water.Based on a test in an orthogonal design,flocculation conditions were optimized.The results show that flocculation activity is at its highest when the following conditions are met:slime water concentration 27.42 g/L;coagulant aid(CaCl_2) mass concentration 5.0 g/L;two-segment stirrings:the first at a stirring speed of 60 r/min for 180 s and the second 180 r/min for 60 s;a pH of 11 and a flocculant concentration of 15 mL/L.The flocculation activity can be up to 98.71%of bioflocculants at the time.Further experiments indicate that most of the flocculation active material is found outside the mycelium cells.This is the extracellular secretion produced by mycelium cells during the fermentation process.This flocculant has strong thermal stability.Many kinds of cations have a flocculation function to assist bioflocculants.This aid-flocculation effect of the divalent cation Ca^(2+) is obvious in the bioflocculant produced by the white-rot fungus.Therefore,this is of great value when applied to control engineering in the battle against water pollution.LIANG Zhi HAN Baoping LIU Hong 2010Mining Science and Technology2010,20,3:25
2Physicochemical properties and heavy metals leachability of fly ash from coal-fired power plant显示文摘The physicochemical properties of fly ash from two kinds of coal-fired power plants were studied. Three aspects were examined: the micro-morphology, the mineral composition and the content of heavy metals. The results show that the fly ash from plants using a circulating fluidized bed are more irregular particles, while the particles from the plants using a pulverized coal-fired boiler are mainly spherical in shape. Quartz and mullite are the main crystalline phases in the ash. Clearly, both the technology and the coal used by a power plant can influence the mineral composition of the ash. The mineral composition of fly ash from a circulating fluidized bed is more complex than that from a pulverized coal-fired boiler. The quantity of elements found in the fly ash is greater than that found in the bottom ash for the same plant. Heavy metals are likely to be enriched in the fly ash. Heavy metal leachability was studied using two leaching methods. The results indicate that most of the heavy metals that leached during either batch leaching or column leaching experiments did not exceed the related maximum concentration standards. But Ni concentrations in the leachates from both batch and column tests exceed the standard. The highest excess rates in both tests were 572% and 497%, which levels might threaten the environment.Xiang Wei Han Baoping Zhou Dong Nzihou Ange 2012International Journal of Mining Science and Technology2012,22,3:5
3Adaptive image enhancement algorithm based on fuzzy entropy and human visual characteristics显示文摘To overcome the shortcomings of the Lee image enhancement algorithm and its improvement based on the logarithmic image processing(LIP) model, this paper proposes what we believe to be an effective image enhancement algorithm. This algorithm introduces fuzzy entropy, makes full use of neighborhood information, fuzzy information and human visual characteristics.To enhance an image, this paper first carries out the reasonable fuzzy-3 partition of its histogram into the dark region, intermediate region and bright region. It then extracts the statistical characteristics of the three regions and adaptively selects the parameter αaccording to the statistical characteristics of the image's gray-scale values. It also adds a useful nonlinear transform, thus increasing the ubiquity of the algorithm. Finally, the causes for the gray-scale value overcorrection that occurs in the traditional image enhancement algorithms are analyzed and their solutions are proposed.The simulation results show that our image enhancement algorithm can effectively suppress the noise of an image, enhance its contrast and visual effect, sharpen its edge and adjust its dynamic range.WANG Baoping MA Jianjun HAN Zhaoxuan ZHANG Yan FANG Yang GE Yimeng 2018Journal of Systems Engineering and Electronics2018,29,5:3
4Effects of rotational tillage practices on soil properties, winter wheat yields and water-use efficiency in semi-arid areas of north-west China显示文摘Xianqing Hou Rong Li Zhikuan Jia Qingfang Han Wei Wang Baoping Yang 2012Field Crops Research2012,,:2
5Effects on soil temperature, moisture, and maize yield of cultivation with ridge and furrow mulching in the rainfed area of the Loess Plateau, China显示文摘Rong Li Xianqing Hou Zhikuan Jia Qingfang Han Xiaolong Ren Baoping Yang 2013Agricultural Water Management2013,,:2
6Synthesis and properties of UV - curable hyperbranched polyurethane acrylate oligomers containing carboxyl groups 显示文摘WENSONG HAN BAOPING LIN HONG YANG 2012Polymer Bulletin2012,68,:1
7Synthesis and properties of UV -curable hyperbranched polyurethane acrylate oligomers containing photoinitiator 显示文摘WENSONG HAN BAOPING LIN YIDAN ZHOU 2012Polymer Bulletin2012,68,:1
8Syn- thesis and properties of UV-curable hyperbranched poly- urethane acrylate oligomers containing photoinitiator 显示文摘HAN Wensong L1N Baoping ZHOU aidan 2012Polymer Bulletin2012,68,3:1
9Synthesis and properties of UV-curable hyperbranched polyurethane acrylate oligomers containing photoinitiator显示文摘Wensong Han Baoping Lin Yidan Zhou Jiangang Song 2012Polymer Bulletin2012,,3:1
10Effects on soil temperature, moisture, and maize yield of cultivation with ridge and furrow mulching in the rainfed area of the Loess Plateau, China显示文摘Rong Li Xianqing Hou Zhikuan Jia Qingfang Han Xiaolong Ren Baoping Yang 2013Agricultural Water Management2013,,:1
11Flow injection solid-phase extraction using multi-walled carbon nanotubes packed micro-column for the determination of polycyclic aromatic hydrocarbons in water by gas chromatography–mass spectrometry显示文摘Hong Wu Xuecui Wang Bing Liu Jie Lu Baixiang Du Luxin Zhang Jingjing Ji Qiaoyu Yue Baoping Han 2010Journal of Chromatography A2010,,17:1
12Synthesis and properties of UV-curable hyperbranched polyurethane acrylate oligomers containing photoinitiator 显示文摘Han Wensong Lin Baoping Zhou Yidan 2012Polym Bull2012,68,3:1
13Synthesis and properties of UV-curable hyperbranched polyurethane acrylate oligomers containing photoinitiator显示文摘Wensong Han Baoping Lin Yidan Zhou Jiangang Song 2012Polymer Bulletin2012,,3:1
14Effects of rotational tillage practices on soil properties, winter wheat yields and water-use efficiency in semi-arid areas of north-west China显示文摘Xianqing Hou Rong Li Zhikuan Jia Qingfang Han Wei Wang Baoping Yang 2012Field Crops Research2012,,:1
15Assessment of air quality improvement effect under the National Total Emission Control Program during the Twelfth National Five-Year Plan in China显示文摘Wenbo Xue Jinnan Wang Hao Niu Jintian Yang Baoping Han Yu Lei Hanli Chen Chunlai Jiang 2013Atmospheric Environment2013,,:1
16Epidemiological characteristics and clinical manifestations of pediatric patients with COVID-19 in China: A multicenter retrospective study显示文摘Importance:The Coronavirus disease 2019(COVID-19)global pandemic poses a considerable challenge for pediatricians.Objective:This study aimed to identify the epidemiological characteristics and clinical features of pediatric patients with COVID-19 in China.Methods:This multicenter retrospective study included pediatric patients from 46 hospitals in China,covering 12 provinces and two municipalities.Epidemiological,demographic,clinical,laboratory,treatment,and outcome data were analyzed.Results:In total,211 pediatric patients with COVID-19 were included in this study.The median age was 7.0 years(range:22 days to 18 years).Approximately 16.3%of the patients exhibited asymptomatic infections,23.0%had upper respiratory tract infections,and 60.7%had pneumonia,including two with severe pneumonia and one with critical illness.Approximately 78.7%of the pediatric patients occurred in familial clusters.The most three common symptoms or signs at onset in children with COVID-19 were fever(54.5%),cough(49.3%),and pharyngeal congestion(20.8%).Only 17.6%of the patients presented with decreased lymphocyte count,whereas 13.6%had increased lymphocyte count.Among the patients with pneumonia who exhibited abnormal chest computed tomography findings,18.2%(23/127)of the patients had no other symptoms.Generally,the chest radiographs showed abnormalities that affected both lungs(49.6%);ground-glass opacity(47.2%)was the most common manifestation.The cure and improvement rates were 86.7%(183/211)and 13.3%(28/211),respectively.Only one patient with an underlying condition received invasive mechanical ventilation;none of the patients died.Interpretation:Similar to adults,children of all age groups are susceptible to COVID-19.Fortunately,most pediatric patients have mild symptoms or remain asymptomatic,despite the high incidence of pneumonia.Decreased proportions of white blood cells and lymphocytes are less frequent in children than in adults.Yan Bai Liwei Gao Xianfeng Wang Lili Zhong Jingfeng Li Shenggang Ding Yuejie Zheng Jun Liu Yuxia Cui Lina Wang Mingfeng Han Jun Liu Xinping Jiang Min Jiang Junhua Li Ning Chen Yunxiao Shang Hourong Zhou Yi Xu Gen Lu Xing Chen Jizhi Xu Qihong Fan Yu Tang Jiang Wu Cen Li Xiaoxiang Yang Chunxi Chen Yonghong Yang Gary Wing-Kin Wong Adong Shen Tianyou Wang Runming Jin Baoping Xu Kunling Shen 2021Pediatric Investigation2021,5,3:0
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