| 1. | Electrical discharge time constant of a detector 检波器的放电时间常数 |
| 2. | Cells or batteries with short discharge time , what is the reason 电池电池组无法放电的可能原因是什么? |
| 3. | Effective discharge time 有效喷射时间 |
| 4. | Discussion of reflecting factors on discharging time of hold - over plate refrigerated vehicles 影响冷板蓄冷量及充冷时间的因素 |
| 5. | Nickel - cadmium batteries ; cells with fibre structured plates ; cells in plastic containers ; discharge current , final discharge voltages , discharge time 镍镉蓄电池.带纤维结构板的电池.塑料容器电池.放电电 |
| 6. | Filling factor of the cell is equal to the percentage of discharging time per working period . ideal filling factor of ac solar cell can reach to 1 理论分析表明,交流太阳能电池的填充因子可以无限接近1 ,交流太阳能电池的转化效率大于相应的直流太阳能电池。 |
| 7. | Based on analysis of chaos characteristic of sediment discharge time series , bp neural networks model based on chaos phase space is proposed to forecast the sediment discharge through embedding dimension 在对输沙量时间序列混沌特性分析的基础上,利用嵌入相空间来确定前期影响因子,建立了基于混沌相空间技术的bp神经网络模型。 |
| 8. | The performance aim requires the discharge time is longer than 5 minutes at 10c , the middle voltage is more than 1 . 0v . the discharge capacity is above 60 % at 20a and 0 . the life time of discharging at 10a and 2a alternately is over 200 cycles 在研制电池的性能目标中,要求电池ioc放电时间在5分钟以上,中值电压高于1 . 0v ;电池具有0 20a放电性能,放电容量达到标称容量的60以上;电池循环寿命长, 2a 、 10a交替放电循环寿命超过200次。 |
| 9. | Alkaline zinc - manganese battery is widely used all over the world it has good performance of storage , low cost , stable discharge and convenience of carrying the sealing of the battery is a crucial factor to the performance of the battery due to the disadvantages of present sealants , leakage of electrolyte often happens what ’ s more , the sealing capability affects the performance of the battery the way to raise the sealing capability is to search for a good additive , which can improve the sealing capability through adding according to chemical principles , this article picks out ptfe and nylon66 as additive adding ptfe or nylon66 into the pitch can improve the sealing capability of the pitch at the same time , the temperature , the time , the amount of addictive , the way to drop temperature and the time of churning all should be considered by testing the constitutions , softening point , moving degree and length of needle of various pitch samples , we can compare the properties of different sealants can be studied by using of x - ray , the constitutions of the pitch can be indicated which can help us to explain these changes this article includes : testing the constitutions , soften point , moving viscosity and needle penetration of various pitches ; raising the sealing capability by adding ptfe nylon66 into the pitches ; testing the constitutions , soften point , moving viscosity and needle penetration of raised samples ; analyzing and discussing the basic principles of this method it is showed that soften point , moving viscosity and needle penetration of pitches are increased by adding ptfe nylon66 and the discharge time , initial voltage , capacity of battery with pitch raised by nylon66 are good and get to the requirement of gb t7 1 1 2 in a11 the method proposed in this article is available in practical industry use 通过测定改进沥青的软化点、运动粘度和针入度等指标参数来比较不同的添加剂及不同的添加条件对沥青封口性能的影响。本论文的主要研究结果为:系统测试了多种沥青样品的组成、软化点、运动粘度、针入度;对市售沥青分别添加聚四氟乙烯乳液、有机硅树脂和尼龙66进行改进,制备了改进产品;对改进沥青的组成、软化点、运动粘度、针入度进行了测试和比较;使用改进沥青组装成电池并对电池进行恒电流放电测试、短路电流测试和电池漏气、漏液性能的测试;对沥青改进的原理进行了分析和讨论。实验结果表明:在沥青中添加尼龙66和聚四氟乙烯乳液对沥青的封口性能有明显的提高;通过对工艺条件的不断改进,目前的工艺条件已完全可以用于实际生产操作;以添加尼龙66改进的沥青为封口剂组装成的电池完全满足碱锰电池生产的需要,且电池电容量、短路电流等指标均达到gb t7112标准要求;本文提出的改进方案,通过验证是一种效果好、实用性强的方法。 |
| 10. | Sub - c mh - ni power batteries were prepared with excellent electrochemical performance based on the research of the high rate performance at different temperature . the change of temperature , impedance and weight loss was investigated in the process of recycle at high rate . it showed that the discharge time is 5 . 9min at 10c and the middle voltage is 1 . 05v 三、根据对电池大电流和温度性能的研究,研制了具有较好电化学性能的动力型镍氢电池,并分别测试了电池在大电流循环过程中的温度、内阻、重量和正负极板等的变化情况,以此分析引起电池性能衰减的原因。 |