实验

By analyzing crossway traffic rules and characteristics,the paper puts forward a design of traffic light control system with VHDL and finite state machine .

以可编程逻辑器件为核心，应用VDHL语言和有限状态机的方法设计交通信号灯控制系统，在MAX+PLUS II环境下进行了仿真实验，结果显示该设计符合设计要求，通过实验，验证了设计的正确性。

Book this introduce design entirely electric to control and pursue, ladder-shaped picture, chronological chart, wiring diagram, flow chart and PLC procedure, should design and use bulb come and realize whole simulation course of experiment, in the course of designing, have done a lot of relevant experiments , for example: Only according to get up and park PLC of circuit design, crossway lipstick PLC of green light design.

本书介绍了整个设计的电气控制图，梯形图，时序图，接线图，流程图和 PLC 程序，该设计运用了灯泡来实现整个实验的模拟过程，在设计过程中，做了许多相关的实验，例如：单按起停电路的 PLC 设计，十字路口红绿灯的PLC设计。

The mouse stretching model caused by acetic acid and the auricle swelling caused by croton oil in mice were adopted to study the analgesia and antiinflammatory effects of Xue Dan Wei Chang pill.

采用小鼠醋酸扭体实验和小鼠耳廓肿胀实验考察其镇痛和抗炎作用。

The experiments were carried out by MoSi2 furnace and in MgO crucible. The experimented steel was heavy rail steel and SiCaBa alloy was used as the deoxidizer.

实验用氧化镁质坩埚在MoSi2炉上进行，实验钢种为重轨钢，选用Si-Ca-Ba合金为脱氧剂。

Objective: To research the condition of the capsule in-vitro forming of Cryptococcus neoformans, providing a simple, safe, low-cost, efective experimental method for experimental teaching.

目的：探讨新生隐球菌荚膜体外形成条件，为实验教学提供一种简便、安全、成本低、效果好的实验方法。

The experimental group of this study is with seventy-six 5th grade students from three classes using Happy Cuber, and the controlled one is with eighteen 5th grade students from one class using cubic net learning sheets.

实验组进行为期三周每周两次的Happy Cuber实验教学，对照组则在实验期间实施展开图学习单填写的学习。

The diameter of cupper and powder which receives ball milling for 50 h, 80 h, 100 h, and 120 h is about 300 nm, 140 nm, 70 nm, 30 nm respectively in ball form; paraffin can evenly cover copper particles. nanometer composite ; metal ; polymer ; high energy ball milling

本文采用高能球磨法研制纳米金属粒子/有机物复合材料功能，着重分析讨论该复合材料的微观形貌特征以及制备工艺对微观形貌特征的影响，为该类无定形功能复合材料的研制作些初步的探索。1 实验材料与方法实验

In the titration experiment of NMR and IR spectroscopy, we can understand how sensors binding with metal ions: the two carbonyl group and crown ether group cooperated in binding with metal ions. Furthermore, by altering the "oxygen" atoms of crown ether to "sulfur", we can change the binding affinity to the soft metal: cupper. It shows 60-fold enhancement of fluorescence.

在化合物2中，我们引进了硫原子在冠状醚中，则应对电子密度较低之金属有较好的结合能力，实验结果显示了此分子对铜离子有相当好的选择性和结合能力，萤光增加可达60倍；同时由红外光吸收光谱和核磁共振光谱滴定实验可确知，香豆素衍生物上的两个羰基对金属离子的选择性及结合上扮演相当重要的角色。

In the simulation, the flow rule of melt metal in mold of horizontal continuous casting with electromagnetic stirring is measured using ultrasonic Doppler velometer, and the result is inter confirmed with the solidification characteristics is tics of zinc cupronickel thin slab in industrial product, some advantageous results are obtained that, when the current is 400 A the inner micro-pores disappear, when the current is 500 A the center equiaxed crystal layers occur and when the current is to 800 A the inner-segregation decreases to zero.

在模拟实验中，用超声波多普勒测速仪测量该电磁搅拌下水平连铸结晶器内金属液的流动规律，并与生产实验中锌白铜板带的凝固特征相互印证，发现搅拌电流达到400 A时，板带内部气孔消失，电流达到500 A时板带出现等轴晶带，电流达到800 A时板带坯偏析率趋于零。

The animal experiment stage: 40 rabbits underwent corneal epithelium curettement and limbal ablation to induce limbal stem cell deficiency and were randomly divided into four groups, simple amniotic membrane group, non-frozen cells group, glycerol group and dimethyl sulfoxide group(n=10 for each group). Searching for the activity of frozen and non-frozen cells more completely by transplanting subculturing cells and observing the accomplishment of cells function.

动物实验阶段：将40只角膜缘干细胞损伤的模型兔随机分成单纯羊膜组、未冷冻细胞组、DMSO保存细胞组和甘油保存细胞组，每组10只，用传代培养2周后的角膜缘上皮细胞作移植实验，观察细胞体外功能完成情况来进一步比较深低温保存前后角膜缘上皮细胞的活性。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。