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Search Results: 1 - 10 of 29919 matches for " 唐〓皇 "
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新贤能政治:我国干部选拔制度的民主化与现代化

- , 2016,
Abstract: 在现代民主政治的基干和框架下,嫁接传统贤能政治的有益成分,构建以现代化为战略导向的新贤能政治模式是中国共产党治国理政的宝贵历史经验,新贤能政治成功地铸就了中国道路的独特性和有效性。中国的干部选拔制度特别强调以经历、经验为基础的任职资格,通过对有潜质的候选者进行台阶式历练来培养其从政经验和提升其贤能水平,干部选拔制度是支撑中国共产党执政和国家治理的基础制度。在干部选拔科学化、民主化和法治化的轨道上改善和优化新贤能政治是中国政治制度现代化的基本动力,而干部选拔民主化的优选之路就是:在推进选拔制度改革以强化民主选拔公正性和可问责性的基础上,着力实现选拔与选举两套制度体系之间的有机耦合。着力推进民主选拔与民主选举有效衔接与深度融合的战略路径,实质是保留现有制度优势的一种治道变革,也是实现新贤能政治现代转型的战略路径。
Abstract:In the backbone and frame of modern democratic politics, grafting the part of excellent germ and gene of traditional political meritocracy, constructing modernization strategic orientation of the neo-political meritocracy mode is valuable historical experience of CPC's governing. The neo-political meritocracy has successfully forged the unique and effective road of economic and social development in China. With particular emphasis on qualification-based experience, on the potential candidate for stepped experience to develop the political experience and raise the level of the elite, the system of cadre selection is fundamental system of party ruling and state governance. In order to improve cadre selection system more scientific, democratization and legalization, improvement and optimization of the neo-political meritocracy is the basic motive force of the modernization of the Chinese political system, and optimization of democracy in cadre selection is to push forward the reform of the selection system to strengthen the fairness and responsibility of the election system, in order to realize the organic integration between the two sets of selection and election system. Strategic path to promote the effective cohesion and the depth of integration of the democratic election and selection system, is a kind of governance reform to retain the advantages of the existing system, and the strategic route of realizing modern transformation of the neo-political meritocracy mode.
有效推进我国国家治理现代化的战略路径

- , 2016,
Abstract:
使命型政党:新时代中国共产党长期执政能力建设的政治基础
作  者:
- , 2018,
Abstract: 长期执政能力建设是新时代执政党建设的重大议题,探寻长期执政能力建设的政治基础必须明晰中国共产党独特的精神气质、功能定位、历史使命和时代责任。中国共产党具有使命型政党的典型特质,强烈的历史使命感和时代责任感一直是我们党推进现代化建设的动力源泉,使命与责任是重新理解中国共产党性质与功能的新视角。新时代对党的长期执政能力建设提出了迫切的现实需求,全面领导和长期执政成为实现党的历史使命的必然选择和根本手段,而优化使命政治,建设更加强大的使命型政党则是长期执政能力建设的价值支撑和目标指向,不断夯实着我们党长期执政能力的政治基础
锚贴钢板加固RC锈蚀梁承载力计算方法与试验研究
张建仁,,彭建新,李炬
工程力学 , 2015,
Abstract: 基于桁架理论模型,定量考虑锈蚀钢筋力学性能、加固钢板厚度、粘胶层粘结强度、保护层厚度对承载力的影响,建立了RC梁锈蚀锚贴加固后极限承载力的计算公式。通过对9片锚贴钢板加固锈蚀梁、3片锈蚀梁以及3片不锈蚀加固梁的试验研究,验证了理论模型的正确性。试验研究和公式计算表明在锈蚀率接近和保护层厚度相同的情况下,钢板厚度每提高1mm,承载力大小提高15kN~20kN,在锈蚀率大小不同的情况下,锈蚀率增加2%~3%,承载力降低大约10kN。
钢板加固锈蚀RC梁短期挠度计算方法和试验
张建仁, , 彭建新, 李炬
中国公路学报 , 2015,
Abstract: ?为了研究锈蚀RC梁加固后变形性能,借助微元法思想,将加固锈蚀RC梁划分成有限单元,考虑锈蚀钢筋与混凝土之间的黏结强度退化以及退化后两者之间的滑移,提出了一种基于裂缝之间锈蚀钢筋和加固钢板组合伸长长度计算钢板加固锈蚀RC梁短期挠度计算方法,分析了钢板厚度和保护层厚度对锈蚀加固梁变形性能的影响。设计制作了9片锈蚀加固梁,并采用静载试验验证了理论模型。分析结果表明:理论模型能够较准确地预测锈蚀加固梁荷载-挠度曲线;在保护层厚度相同的条件下,当两试验梁平均锈蚀率相差超过1%时,锈蚀率是影响挠度发展的主要因素,挠度随平均锈蚀率增大而增大,当试验梁平均锈蚀率相差小于1%且两主筋锈蚀均匀时,挠度随钢板厚度增加而减小;在钢板厚度相同的条件下,荷载值大于50kN后两试验梁挠度随保护层厚度增加而减小。
锚贴钢板加固锈蚀钢筋混凝土梁试验研究
Experimental analysis of strengthening effect of corroded reinforced concrete beams strengthened with bolted steel plates

彭建新,李炬,,张建仁
- , 2015, DOI: 10.11835/j.issn.1674-4764.2015.01.015
Abstract: 为了研究锈蚀钢筋混凝土梁采用钢板锚贴加固后的力学性能,设计了12根钢筋混凝土梁,以设计锈蚀率为10%进行电化学快速锈蚀。在锚贴钢板加固前进行预压试验,裂缝宽度控制为0.2 mm。按保护层厚度分为3组,每组1根对比梁,其余3根分别按钢板厚度3、4、5 mm进行锚贴钢板加固。加载对比试验研究表明:锚贴钢板加固锈蚀钢筋混凝土梁的跨中截面应变基本符合平截面假定,正常使用性能得到明显改善,且极限承载力亦有明显提高。锚贴钢板有效地减小了锈蚀钢筋混凝土梁的裂缝宽度和裂缝延伸高度,在相同保护层和锈蚀率相近时,钢板厚度增加3~5 mm导致其挠度减小,且减小幅度为13%~51%。保护层厚度对加固梁的极限承载力影响不明显。
In order to study the mechanical behavior of corroded reinforced concrete beams strengthened with bolted steel plates, this paper designed 12 reinforced concrete beams. These beams were corroded by using accelerated electrochemical corrosion method with a designed corrosion ratio of 10%. The pre-compression experiments were performed for all RC beams before strengthening and the maximum crack width was controlled as 0.2 mm. According to the thickness of concrete cover, the beams were divided into 3 groups. Each group was composed of one comparative beam and three tested beams strengthened by steel plates bolted with study according to the thickness of steel plates which were 3 mm, 4 mm and 5 mm, respectively. It was shown that the strain distributions along the height of the strengthened beams at middle-span were in good agreement with the plain section assumption basically. The serviceability performances of corroded RC beams were significantly improved and these ultimate bearing capacities increased obviously. The steel plate bolted with stud effectively reduced the crack width and the extension height of reinforced concrete beams. It was indicated that an increase of steel plates with 35 mm resulted in a decrease of deflection by 13%51% when beams had the same thickness of concrete cover and corrosion ratio. Influence of the thickness of concrete cover on the ultimate bearing capacity was not obvious.
中国银行借款与商业信用融资的治理效应:过度投资视角
Bank Credit, Commercial Credit and Overinvestment Behavior of Listed Enterprises

炳南,刘东,樊士德
- , 2018,
Abstract: 依据沪深A股主板市场2007-2015年样本数据,考量中国银行借款与商业信用融资的治理效应。结果显示:无论是国有控股公司还是民营公司,银行借款均对其过度投资行为存在诱发作用;与短期借款相比,长期借款对公司过度投资的诱发作用更加突出。结果表明,商业信用融资有助于抑制公司过度投资,且市场化程度越高的地区这种抑制作用越突出。
This paper discusses the governance effect of debt on overinvestment behavior of state-owned enterprises from two angles of view of debt source and debt structure. The results show that bank loans do not have a significant inhibitory effect on the excessive investment behavior of the company, and even the positive effect is induced. Among them, the long term loan induces the excessive investment behavior of the company more than the short-term borrowing, and the higher the ratio of commercial credit financing, the more help to curb excessive investment. At the same time, compared with the central and western regions, the commercial credit financing of listed companies in the eastern region has a greater inhibitory effect on the over investment.
海上监控视频实时去雾算法研究
Research on Real-Time Haze Removal Algorithm for Marine Video

神和龙,尹勇,夏桂林,
- , 2018, DOI: 10.15918/j.tbit1001-0645.2018.04.009
Abstract: 为提高船舶在雾天航行的安全性,对船舶监控视频流进行实时去雾.建立雾天退化物理模型,采用数学中不等式缩放理论估计出每帧有雾图像的透射率和全局大气光,然后根据雾天成像的物理模型恢复出每帧去雾图像.根据海上监控视频图像具有大面积天空和海水,对该算法中的参数依据航海目标细节恢复程度和图像对比度等因素进行估计.实验结果表明,该算法能够有效恢复海上目标的细节清晰度和提高图像的对比度,又能满足视频流实时去雾的要求,说明算法能够较好地解决海上监控视频实时去雾问题.
In order to improve ship navigation safety in fog,a real-time haze removal algorithm was proposed for marine surveillance video. For establishing fog degraded physical model,an inequality scaling theory was preliminarily used to estimate transmission and the global atmosphere for every frame of marine surveillance video. Then the haze-removal surveillance video was recovered based on the physical model. Finally,according to the marine surveillance video with large sky and sea areas,the parameters of the algorithm were estimated based on the factors of navigation target details and image contrast. The experiment results show that the algorithm can remove the haze in real-time speed,recover the marine targets' details and improve the image contrast. So,it proves that this algorithm can well solve the problem of real-time haze removal for marine surveillance video.
弯剪加固锈蚀梁抗弯性能试验
Experiment on flexural behavior of corroded beam with flexural and shear strengthening

肖林发,彭建新,,张建仁
- , 2018,
Abstract: 为探究锈蚀RC梁弯剪加固前后的力学行为,通过外加恒电流加速腐蚀的方法制作7根锈蚀梁,进行锚贴钢板弯剪加固后受弯试验,分析保护层厚度、二次锈蚀以及弯剪加固对试验梁的变形、应变以及承载力的影响。在此基础上,利用Combin39单元考虑钢筋与混凝土的黏结退化,对加固梁进行有限元数值模拟,并将变形、应力的计算值与试验值进行比较分析。结果表明:弯剪加固能有效提高锈蚀梁刚度以及承载力,二次锈蚀和保护层厚度对早期刚度的影响较小;各片试验梁加固前的承载力相差较大,经弯剪加固后,其承载力较为接近;二次锈蚀对加固梁的影响主要体现在锈蚀程度和不均匀性,锈蚀不均匀性会改变破坏形态并影响其使用性能;刚度的退化以及极限承载力的降低主要受锈蚀率影响,而保护层的作用较小;加固前后梁的应变基本表现为线性趋势,保护层厚度对中性轴高度的影响较弱;锈蚀严重时锚固作用较弱,导致梁底应变略有滞后,中性轴高度降低,而轻微锈蚀则能使钢板性能更好地发挥;基于黏结滑移降低系数所建立的有限元模型能够较好地模拟其试验值。
In order to explore the mechanical behavior of corroded RC beam before and after flexural and shear strengthening, 7 corroded beams produced by applying constant current accelerated corrosion method were subjected to bending test after flexural and shear strengthening by bolting steel plates,and effects of the thickness of concrete cover, the secondary corrosion and flexural and shear strengthening on the deformation, strain and bearing capacity of test beams were analyzed. On this basis, the bond degradation of reinforcement and concrete was considered by adopting Combin39. Finite element numerical simulation for the strengthened beams were carried out, and the deformation and stress of model were compared with the experimental results. The results show that the flexural and shear strengthening can effectively improve the stiffness and bearing capacity of corroded beams, the secondary corrosion and the thickness of concrete cover had little influence on stiffness in early period. The difference of bearing capacity of the test beam before reinforcement is larger, but after the flexural and shear strengthening, the differences become relatively close. The main effects of the secondary corrosion on reinforced beams are corrosion degree and inhomogeneity which may change the failure mode and affect performance. The degradation of stiffness and reduction of the ultimate bearing capacity are mainly influenced by corrosion rate, while the protective layer has little influence on it. The strain of front and back beams before and after reinforcement is basically presented as linear trend, and the impact of thickness of protective layer on the neutral axis is weak. Weak anchoring effect caused by severe corrosion leads to a slight lag of the strain at the botto
PE2380原子吸收仪应用简介
翠兰
冰川冻土 , 1991,
Abstract: 原子吸收光谱法是基于蒸汽相中被测元素的基态原子对其原子共振辐射的吸收强度,来测定试样中被测元素含量的一种方法。最近几年来获得迅速发展。原子吸收仪不仅具有灵敏度高、操作简便和分析速度快的特点,而且准确度、精密度都很高,尤其适于低浓度测定,是分析微量元素的理想方法。原子吸收仪的应用范围相当广泛,可测元素达70多个。
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