399 research outputs found

    A Study on Income-Distribution Regulatory Effect of Financial Support in Agriculture

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    This thesis carries out a quantitative inspection about marginal scale effect and structural effect that both size and structure of expenditures for financial support in agriculture have on income gap between urban and rural residents. According to analyses, it is found that both absolute amount and relative amount of size of financial support in agriculture have widening effect on income gap between urban and rural residents; agricultural infrastructure, three items of agricultural science and rural relief have gap-reducing effect; support for agricultural production and operating expenses of departments do not have significant effect, which may have widening effect in combination with reality factors; and unreasonable structure is a key factor leading to the situation that regulatory effect of financial support in agriculture on unfair income distribution is minor. Thus, to improve income-distribution regulatory effect of financial support in agriculture, it is essential to increase scale of expenditures, form a long-term mechanism, enhance degree of capital integration, optimize expenditure structure and perfect mechanisms of governmental performance examination

    Design and Simulation Based on Pro/E for a Hydraulic Lift Platform in Scissors Type

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    AbstractScissors lift platform with a wide range, the main platform, lift mechanism and the bottom are composed of three parts. Lifting from low to high lifting, the scissors posts, and the hydraulic cylinder layout multiple, mobile way has traction, self-propelled, booster, etc. Scissors lift mechanism of scissors post number and cylinder layout by lifting height. This paper is about a design based 3D software Pro/E with 8m high scissors lift platform, which gives a entire platform dimension with 1800 × 900mm2. A rated load of features so that the whole platform can be set up by two pairs of scissors refers to like products. The platform is designed to be folded away doors, to save more space for convenient storage. Lift platform uses a hydraulic driver, which runs smoothly, stably, and accuracy factors relative to high

    Characterization of Fractured Reservoirs in Ultra-Deep Carbonate Buried-Hills, Langgu Depression, China

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    Low-porosity highly fractured carbonate rocks in the deep Ordovician Formation in the Langgu depression of China remain active exploration targets. However, the seismic characterization of fractured reservoirs has been a challenging problem for decades. By integrating logs with seismic data acquired from the Huabei Oilfield in the Langgu depression, we improved a rock-physics-based method of estimating fractured zones using post-stack seismic data combined with stress field analysis. Using an FMI image log, porosity, density as well as sonic logs, fractured zones and heterogeneous rock types are classified. Two reservoir types are identified as having different elastic properties: the high-porosity zone (ф>6.5%) and the fractured zone (ф<6.5%). Further, by using a pore structure parameter γ from a rock physics model, it has been found that acoustic impedance correlates well with both porosity and this pore structure parameter, for the oil reservoir of the ultra-deep carbonate buried-hill of the Ordovician Age. Fractured zones in the studied reservoirs have a signature of acoustic impedance lower than 16500 (g/cc*m/s) and a pore structure parameter higher than 14. Quantitative geological interpretation further indicates that fractured zones are mostly located along the faults whereas high-porosity zones are distributed along the unconformity surface formed by dominating diagenetic processes
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