Description: 环境污染与防治 环境污染与防治-pollution and pollution control and prevention and control of environmental pollution Platform: |
Size: 7159 |
Author:阿乌鸟 |
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Description: 环境污染与防治 环境污染与防治-pollution and pollution control and prevention and control of environmental pollution Platform: |
Size: 7168 |
Author:阿乌鸟 |
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Description: 环保局污染设备在线控制系统(商业源码).完整,实用的VC写的控制系统,下位分析设备采样控制系统. -Environmental Protection Agency pollution equipment on-line control system (commercial source). A complete, practical, written in VC control systems, under-sampling analysis equipment control systems. Platform: |
Size: 6848512 |
Author:335 |
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Description: 利用优化自动控制系统提升钢坯的加热质量、节约加热能耗、确保其燃烧系统的最佳状态、延长设备寿命以及减少环境污染是本文研究的主要问题，结果具有较重要的实际参考价值。-Automatic control system upgrade using the optimal slab heating quality, save heating energy consumption, to ensure optimum combustion system, extend equipment life and reducing environmental pollution is the main problem this paper, the result is more important practical value. Platform: |
Size: 2048 |
Author:sl |
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Description: 环保部公布了轻型汽车国V排放标准，汽油车的氮氧化物加严25 ，并增加了污染控制新指标颗粒物粒子数量。环保部科技标准司负责人介绍，北京市出于改善区域空气质量的迫切需求，先行制定了北京V阶段标准。-Ministry of Environmental Protection announced a light vehicle state V emission standards for nitrogen oxides gasoline vehicles tightened 25 , and adds new indicators of particulate matter pollution control the number of particles. Ministry of Environmental Protection and Technology Standards Department, responsible person, to improve regional air quality in Beijing for urgent needs, first formulated the Beijing stage V standards. Platform: |
Size: 1684480 |
Author:icecream |
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Description: 03山东省环境保护厅山东省公安厅关于实施《山东省机动车排气污染防治条例》有关问题的通知-03 Environmental Protection Department of Shandong Province, Shandong Province Public Security Bureau on the implementation of the "Shandong Province, motor vehicle exhaust pollution prevention and control regulations," the issue of notice Platform: |
Size: 403456 |
Author:桃花岛 |
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Description: 为了根据作物不同病害程度等级采取不同防治方法，实现作物高产和减少环境污染，提出了一种复杂背景
下的作物叶片病害等级分类算法。首先，利用阈值分割法对黄瓜病害叶片图像进行病斑分割 其次，计算病斑区域中
像素个数与病叶区域中像素个数的比值 最后用作物病害等级分级标准进行比较来确定病害等级类别。利用该方法
在2 种作物5 种常见病害叶片图像数据库上进行了病害等级分类试验，识别精度高达92． 7 。结果表明，该方法对
作物病害叶片等级分类是有效可行的-To take a different control methods based on different levels of crop disease levels, crop yields and reduce environmental pollution, the proposed plant leaves disease classification algorithm under complex background. First, the threshold segmentation method cucumber disease leaf images lesion segmentation secondly, to calculate the ratio of the number of pixels in the lesion area and the number of pixels in the region of diseased leaves and finally a comparative rating of crop disease grading criteria for determining disease level category. Using this method on two kinds of crop disease leaf images using five common of disease classification test, recognition accuracy up to 92. 7 . The results show that the method of crop disease leaf classification is feasible and effective Platform: |
Size: 220160 |
Author:naipab |
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Description: 时间序列分析是根据系统观测得到的时间序列数据，通过曲线拟合和参数估计来建立数学模型的理论和方法。它一般采用曲线拟合和参数估计方法（如非线性最小二乘法）进行。时间序列分析常用在国民经济宏观控制、区域综合发展规划、企业经营管理、市场潜量预测、气象预报、水文预报、地震前兆预报、农作物病虫灾害预报、环境污染控制、生态平衡、天文学和海洋学等方面。(Time series analysis is the theory and method of establishing mathematical model by curve fitting and parameter estimation according to time series data obtained from system observation. It usually uses curve fitting and parameter estimation methods (such as nonlinear least squares). Time series analysis is commonly used in the national economy macro control, regional comprehensive development planning, enterprise management and market potential prediction, weather forecasting, hydrological forecasting, earthquake prediction, pest disaster forecasting, environmental pollution control, ecological balance, astronomy and oceanography etc..) Platform: |
Size: 1555456 |
Author:Terrier
|
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Description: 时间序列分析是根据系统观测得到的时间序列数据，通过曲线拟合和参数估计来建立数学模型的理论和方法。它一般采用曲线拟合和参数估计方法(如非线性最小二乘法)进行。时间序列分析常用在国民经济宏观控制、区域综合发展规划、企业经营管理、市场潜量预测、气象预报、水文预报、地震前兆预报、农作物病虫灾害预报、环境污染控制、生态平衡、天文学和海洋学等方面。(Time series analysis is a theory and method to establish mathematical model by curve fitting and parameter estimation based on time series data obtained from systematic observation. It is usually carried out by curve fitting and parameter estimation methods (such as nonlinear least square method). Time series analysis is often used in macro-control of national economy, regional comprehensive development planning, enterprise management, market potential prediction, meteorological forecast, Hydrological Prediction, earthquake precursor prediction, crop pest and disease disaster prediction, environmental pollution control, ecological balance, astronomy and oceanography.) Platform: |
Size: 53313536 |
Author:Sandy_Zhao |
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