摘要：A design method of an intelligent temperature control system based on single-chip microcomputer is presented in this paper. The intelligent temperature control system is divided into four parts: monitor,heater,controlled process and feedback loop. Among them,the temperature detection circuit is designed with the conductivity of water by sensor detection. The optical coupler MOC3041 is used to implement the power control circuit,whose control object is 1 kW electric heater with the 220 V alternating current power; keyboard and display circuit SMC1602A include four buttons and LCD display to achieve human-computer interaction; Based on single-chip system STC89C52,the sensor signal and keyboard set target temperature are compared to the power automatically in order to finish the water temperature control. Through the static and dynamic data testing,the results show that the proposed method provides an effective way to realize the real-time acquisition and control of temperature.

摘要：An orthogonal design was used to optimize SSR-PCR amplification system using Panax ginseng genomic DNA as template. Four levels of five factors （DNA template, Taq DNA polymerase, Mg^2＋, primer, and dNTP） and annealing temperature have been tested separately in this system. The results demonstrated the reaction efficiency was affected by these factors. Based on the results, a stable, productive and reproducible PCR system and cycling program for amplifying a ginseng SSR locus were obtained： 20 μL system containing 1.0 U Taq DNA polymerase, 2.0 mmol·L^-1 Mg^2＋, 0.2 mmol·L^-1 dNTPs, 0.3 μmol·L^-1 SSR primer, 60 ng· μla^-1 DNA template, performed with a program of 94℃ for 5 min, 94℃ for 30 s, annealing at 56.3℃ for 30 s, 72℃ for 1 min, 37 cycles, finishing at 72℃ for 7 min, and storing at 4℃.

摘要：这篇论文表明一个地理信息在 Baihe 林地 Burea 分类并且印射森林管理范畴的系统(GIS ) 过程，吉林省，中国。在学习区域以内， Baihe 林地局土地被分类进一个二层次的系统。Thetop 水平班包括了非森林和森林。超过 96% 陆地区域是在学习区域的森林，它进一步被划分成关键生态的服务森林(KES ) ，一般生态的服务森林(GES ) ，和商品森林(COM ) 。COM 盖住 45.0% 全部的陆地区域并且是管理在拜黑·福雷斯特局打的主要森林。KES 和 GES 分别地说明了 21.2% 全部的陆地区域和 29.9% 。在这研究与 GIS 一起设计的森林管理地区当时与用手建立的地区由本地机构拉的森林管理相比。二个产品之间有明显的差别。它建议差别有一些对数据来源，基本单位和印射的过程做。它也建议 GISmethod 是在为分类并且印射森林地区满足分类森林管理系统的需要集成森林库存数据和另外的数据的一个有用工具。