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1.
现代农业示范园区科技支撑规划内容研究 总被引：1，自引：0，他引：1
现代农业示范园区作为以市场为导向、以科技为支撑的现代农业发展的新型模式,引领和示范农业科技创新、转化和推广,带动了区域农业与农村经济发展,为中国农业现代化起到了良好的示范作用。随着国家级示范园区建设范围进一步扩大,承担示范园区建设的地区,需要对本地区的资源和主导产业进行规划,掌握现代农业示范园区的科技保障水平、科技管理体系、科技创新体系3个方面所包括的指标,总结现代农业示范园区科技支撑规划中存在问题,制定出科学合理的规划方案,对加强现代农业示范园区科技支撑基础建设具有重要的意义。本报告通过对现代农业科技支撑规划内容系统梳理,构架起研究现代农业科技支撑基础分析框架,以期对现代农业示范园区规划具有重要的理论指导。 相似文献
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The digital image displacement measurement technology and finite element data smooth were applied in the soil slope shaking table test. The displacement field and strain field were obtained from the whole vibration process. And the seismic failure mode and failure mechanism were discussed as well. The results show the deformation of soil slope increases gradually; there is shear failure from slope middle to toe and tension-shear failure at the top of slope; there forms deep arc-shaped slip surface when the slope model fails. The generalized curvature of displacement time-hisrory curve is used to judge whether the slope seismic failure is feasible. 相似文献
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Pointing out the shortages of the traditional bar thread displacement transducer, brings forward new thought of designing difference phase degree division displacement transducer, which transforms the problem of measuring displacement directly in angle into the problem of measuring the difference between the phases of two signals which have the same frequency and then gets the displacement in angle indirectly. The theories on designing the phase difference calculation displacement transducer and correlation displacement transducer is suggested. Because the difference phase degree division displacement transducer, supported by the computer technology and the signal processing technology, adapts to the development of instrument's fictionzing and intelligentizings, it is an advanced technology. 相似文献
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ZHOU Shi-liang~ 《保鲜与加工》2004,(12):82
The background of a west communication science & technology project whose topic is structural model and cargo-handling technology of the quay with high amplitude of water level in Lantsang is introduced, and its main research content, research of key technology and main findings are introduced too. Three types of structural model and cargo-handling technology which can be applied perfectly in Lantsang are put forward. The structural models include beam and slab structure with pillar supported, box bridge crane structure and reinforced earth structure, the cargo-handling technologies include vertical fixed crane technology, bridge crane technology and movable simple crane technology. Some findings have been applied in the supporting engineering-Menglun harbor. 相似文献
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为克服超声提取重楼总皂苷得率低的问题,采用超声辅助酶法提取新工艺。在单因素试验的基础上,利用Box-Behnken试验设计,考察酶用量、酶解温度、pH值和酶解时间对重楼总皂苷提率的影响。通过此模型得到最佳工艺条件为:酶用量为32 U/g底物,酶解温度为52℃,酶解pH值为4.6,酶解时间为92 min,在此条件下重楼总皂苷的提取率的理论值是1.68%,验证实测值为1.66%,与理论值的相对误差为1.12%。 相似文献
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TAN Jun-yu 《保鲜与加工》2006,(1):146-149
Technology Creating something new is spring of technology progress,and diffusion of trasfer of technology is a key stage or symbol of technology progress.Raz Baruch,Liu Wenge and Zhu Jiaxing,respectively,had given or modified receiver state model of technology transfer.This paper firstly explains that S-type model is a model of simple,applicable and higher guasi-degree for technology transfer as well.Next,a long-time model of receiver state of technology(development) in technology diffusion is obtained and Zhu's model is revised. 相似文献
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After coal mined, the balance of original stress state is to be broken. In the course of retribution, displacement and deformation in the overburden takes place with the working face advancing. The article points out that overburden can be divided into, in ascending, caving zone, fractured zone, bending zone and loose alluvium zone. The extracting space can be prevented from transferring to ground with injection material into bed-separation gap. Applying both mining subsidence theory and elastic thin plate theory, the computational model of subsidence control technology of grouting is worked out. The model can get rid of blindness of determining the position of separated strata, forecast the surface subsidence and provide the basis of theory for forecasting surface subsidence control technology of grouting. 相似文献
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The dynamic model of describing influence of industrial structure and technology transfer on economy growth is given in this paper. The model reflects three important results as follows (i) If Small Open Economy (SOE) is multiple and the number of employers in service department is increasing,then GNP per capital will grow;(ii) The change of industrial structure in manufacturing department will lead higher GNP per capitcal;(iii) If foreign direct investment (FDI) is realized by multisnational company with accompanying transfer of its own technology and productive service,then economy growth of the state which is imported the technology will be slowed down. 相似文献
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本研究旨在提出促进长江经济带第三产业绿色技术创新水平提升的建议,为推进经济带协同一体的高质量发展提供理论依据。基于Min-DS模型,测度2001—2018年第三产业绿色技术创新效率,并结合Dagum基尼系数和Kernel密度估计,揭示区域及其子地区绿色技术创新效率变化的时空差异特征、贡献率及动态演变规律。以长江经济带为例研究得知：在观察期内经济带第三产业绿色技术创新效率总体呈上升趋势,下游地区效率具有显著优势;但各省市效率变化趋势存在较大差异,效率强度区域的空间分布随时间改变;上中下游地区内及之间绿色技术创新效率的时空差异是经济带时空差异的主要来源。本研究系统分析了长江经济第三产业绿色技术创新效率的分布及演变特征,得到了其提升绿色技术创新水平的有效路径。 相似文献
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In this paper,notions on appropriate technology for the Steel Construction Congregated Apartments are proposed in order to deal with the technical impediment that arises from applying steel structural techniques to the congregated apartments.The appropriate technology for the steel construction congregated apartments is defined as systematic technologies that are in harmony with the status quo of Chinese productive force level,social culture and building technology,and as the strategies of choosing or balancing technology according to sustainable development principle.The principal design and constructing strategies of appropriate technology are as follows:(1) organization of residential space combined with steel construction techniques,(2) suitable structural system,(3) a new idea of fire resistance,and(4) kit building technique etc.A technological concept analysis about an ideal model of a steel construction system congregated apartment combined with the appropriate technology is also presented. 相似文献
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本研究选取2016—2020年平度市的农业技术推广投入产出数据,利用DEA模型,对平度市近5年的农业技术推广效率进行了测算。依据模型测算出结果,得出平度市近5年的农技推广效率平均值为0.905,发现2020年的推广效率低于平均值,农技推广存在推广效率低、投入冗余等问题,并提出了完善农技推广人员激励考核制度的对策。再对平度市5个镇的农业技术推广效果满意度分析得出：性别、家庭劳动力健康状况、家庭耕地面积、家庭年总收入、农业收入是否转入土地是重要影响因素。最后基于本研究的研究结果,从政府、农技推广人员和农户角度提出完善农业技术推广的建议,以期为农业技术推广分析研究提供参考和借鉴。 相似文献
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针对目前位移传感器很难直接测得木结构或木构件在转动中产生较大绝对水平位移的问题,研制了量程为±500 mm的电阻应变式位移传感器（WD位移传感器）,应用正交试验法分析WD位移传感器的影响因素,并对其进行设计与制作,拟合了传感器在不同量程下应变位移的分段函数关系,通过计算得出了WD位移传感器的6种静态参数指标。试验结果表明,WD位移传感器克服了传统电阻应变式位移传感器量程小的问题,解决了木结构或木构件发生非直线运动很难直接测得绝对水平位移的问题,且各静态参数指标良好。 相似文献
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The business incubator comes from the management model that provides environment,service for science and technology small enterprises to accelerates their growth.Incubation performance is a main evaluation criterion to choose incubator for venture investment enterprises.The paper constructs incubation performance evaluation system of science and technology business incubator,and establishes a method model to calculate weigh based on Analytical Hierarchy Process(AHP).The conclusion is that the AHP is applied well to the structure the incubation performance index system of science and technology enterprise Incubator index system based on an example. 相似文献
14.
Deformation measurement and analysis play an important role in geotechnical model tests. Using the concept of quadrilateral isoperimetric element, the strain filed was achieved from the calculation method based on displacement modes, and the verification results show that this measurement technique has a reliable precision. The soil deformation in model test of square shallow foundation was measured by using this technique, and the results show that the measurement system based on digital image correlation method can realize the whole process quantitative measurement of soil displacement field and shear strain filed. This deformation measurement technique provides a tool for the qualitative and quantitative analysis of soil micromechanics characteristics. 相似文献
15.
The Influences of modulus and dosage of sodium silicate and microwave energy heat up technology for instant strength and retained strength are measured and analyzed by the numbers. The results show that instant strength is reduced when the time of microwave energy heat up is too long. The engineering application design is recommended. 相似文献
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针对内蒙古自治区生态观测需求,特别是草地生态系统观测需求,选取牧草观测为研究内容,提出基于嵌入式技术和并行计算技术的实时远程可控可视的牧草观测自动化技术思路。采用特征像素图像识别方法,实现牧草覆盖度的自动测量、牧草的发育期图像自动识别。利用摄影测量技术结合图像处理技术获得像高转物高变换算法,实现层高与株高的自动测量。结合现代电子技术以及DSP技术、图像处理技术设计了牧草自动观测智能传感器,传感器在观测前端完成图像采集、处理与模式识别后,再将处理后的结果通过网络传向服务器端,可通过智能手机或PC访问服务器远程查看观测数据,实现牧草覆盖度、层（株）高以及牧草生长期的自动观测。测试结果表明,图像处理与实测覆盖度数值显著相关检验R0.05>0.90,与实测株高数值显著相关检验R0.05>0.85。相对于在后端PC系统进行图像处理,不但可以提高观测系统的数据运算处理速度,而且鲁棒性好,同时能够大大减轻数据传输压力,适合对体积、功耗、工作环境及稳定性要求极高的场合。 相似文献
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In order to research the displacement air conditioning in cinem conditioning system with wall diffuser in cinema with the CFD. According a, the writer simulates the displacement air to the result of the computing, we can find that if we adjust the position of the openings and parameter of air-inlet in reason. It is useful to make good use of displacement air conditioning system with wall diffuser and extend the saving energy methods by using the CFD technology in designing the air condition system in cinema. 相似文献
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农民教育是社会主义新农村建设的核心问题。培养一大批用得上、留得住、掌握一定专业知识的新型农民，农民教育是关键。由大学和地方政府科技部门共同实施的“沈阳市农村青年科技人才研修工程”， 探索出“政府出资、大学培训、农民受益” 的科技培养新模式，搭建了科技培训平台，为社会主义新农村建设培养出一大批“懂技术、善经营、留得住、用得上”的新型农民，已产生了很好的经济效益和社会效益，是解决“三农”问题的一大创举。 相似文献
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CHEN Qiu-nan~ 《保鲜与加工》2005,(1):62-66
During the construction of non-symmetric double-arch rock highway tunnel, the complicated geological condition may affect the safety of the constructor and the engineering quality. In this paper, two treatment methods are put forward. At first, the site monitoring of surrounding rock displacement must be carried out, then, BP neural network is applied in predicting the displacement of surrounding rock based on the learning sample of measured value, so the stability of surrounding rocks may be analyzed and forecasted. During the analysis of BP neural network, the effects of joint and fracture of surrounding rock on displacement can be comprehensively considered, comparing the predicted values of displacement with those by FEM. The results show that not only the predicted error of BP neural network is relative small, but the predicted values of surrounding rock displacement are close to measured ones. So, the predicted values of BP neural network are reliable and may guide the engineering construction in site. 相似文献