| 1. | Design regulation on greenhouse climate control systems 温室控制系统设计规范 |
| 2. | The cretaceous is a typical period for greenhouse climate in geological history and has become an important paleoclimate simulation period in international paleoclimate modeling community 摘要白垩纪是地质史上一个典型的温室气候时期,国际上围绕白垩纪气候成因开展了一系列模拟研究。 |
| 3. | The idea that the field bus is introduced into the field of greenhouse climate control in facility agriculture is present in the dissertation , and a node control system of greenhouse field based upon field bus technology is designed 本文将现场总线技术引入温室环境监控领域,设计开发了基于现场总线技术的温室节点控制系统,基于热交换平衡建立了温室温度动态模型,以及利用蒸汽加温时温度的动态模型。 |
| 4. | The second chapter discussed define , characteristic and virtue of field bus , analyzed constitution of field bus control system and difference with traditional dcs . the conclusion is that can is the field bus that adapts to greenhouse climate control after several popular field bus is analyzed , the characteristic and technical specification of can bus is discussed 第二章阐述了现场总线技术的定义、特点和优点,分析了现场总线控制系统的构成形式,以及跟传统dcs的区别,通过分析比较几种主流的现场总线,得出can总线是适合于温室环境控制的现场总线。 |
| 5. | These simulations focused on the major factors driving cretaceous climate changes and the critical time periods of the climate change , and tested the internal and external forcing in the earth climate system and the feedback effects among various spheres of the earth system , thus providing us an understanding of the mechanism of greenhouse climate and an important scientific basis for projection of the future climate changes 这些古气候模拟试验锁定在气候变化的关键时段和驱动因子、测试地球内外动力和地球各圈层反馈作用,可为认识温室气候的成因、探讨气候变化内在机制和预测未来气候提供重要的科学依据。 |
| 6. | The content of the dissertation including : based on discussing the present study of greenhouse climate control , the first chapter introduces the importance that the field bus technology is applied to greenhouse climate control , and expatiates the significance , purpose and content of the paper 本文各章研究内容如下:第一章从分析研究背景出发,在综合详述了国内外温室控制系统研究历史现状的基础上,说明了将现场总线技术应用于温室环境监控领域的必要性,阐述了本论文的研究意义,并简述了本学位论文的研究内容和贡献点。 |