The activities of maritime vessels that can be environmentally harmful include ship waste disposal, bilge pumping, tank cleaning, ballasting, power generation, and fueling. 海运船舶的活动也会对于环境造成有害的污染,包括船上废水处理、船底排水泵、油罐清洗、压舱、发电机和燃料等。
EPDM can be installed by either ballasting, mechanical fastening or full adherence. 三元乙丙可以安装由镇、机械紧固或完全遵守。
Feasibility Analysis of Ocean Structures Transportation by Semi-submersibles and Ballasting Optimization 半潜船运载装卸海洋结构物的可行性分析及压载方案优化
Improvement of Ballasting for Silicon Bipolar Power Transistor 硅双极功率晶体管镇流技术的改进
Furthermore, the influence of ballasting resistance on both the safe operating area ( SOA) and S of RF power HBT is investigated. 分析了镇流电阻对射频功率晶体管安全工作区以及S的影响。
The experimental results of dual emitter ballasting using a complex emitter ballasting resistor which is provided by a diffused silicon resistor and a poly silicon resistor in silicon microwave power transistor are reported. 本文报道了采用多晶硅电阻和扩散电阻组合而成的复合镇流电阻对硅微波功率器件进行二次发射极镇流的实验结果。
The model of cargo liquid and ballasting pipeline network is then simulated by the methods of predecessors. The dynamic and static simulations are developed after concerning different kinds of factors systematically. 之后运用前人的管网有限元方法对母型船液货、压载管网进行仿真建模,在系统地考虑了多种因素的前提下,实现了化学品船液货系统操作动态仿真和静态仿真。
Design on system of auto-balance ballasting on container vessel 船舶压载水自平衡系统的研究
Also, a method of ballasting using high pressure tank is described in detail, and calculation of ballasting weight is explained by giving an example. 论文详细描述了用压力罐进行浮标压载重量标定的方法,并通过一台浮标的压载实验给出浮标配重计算方法。
The paper analyses the model's characteristic of common electronic ballasting. Discusses the most essence characteristic of electronic ballasting and the electrophoresis of the charge and discharge for capacitance. 本文分析了普通电子镇流模型的特点,探讨了电子镇流的最本质特征和其中的电容充放电现象。
The paper introduces the general outline of the 2 900 t lifting semi-submersible barge and sizing of its main dimensions. For the purpose of stability, it presents the measures of reducing total ballast capacity and ballasting/ deballasting time. 本文主要介绍了2900t举力半潜驳的总体概况以及主尺度的选取因素,并从稳性的角度出发,提出了减少压载水总量、缩短进排水时间的措施。
Electronic Ballasting with the Charge and Discharge for Capacitance 电子镇流与电容充放电
A theoretical analysis and technical preparation for giant caisson bottom landing by water ballasting pro-ceeds from the experiment of overhead filling by siphon with non-energy starting using the real data of steel caisson in Bohai JZ 9-3 oilfield. 以渤海锦州9&3钢质沉箱的实际数据为依据进行的无能源启动高架位灌水虹吸法的实验,为巨型沉箱加水压载坐底提供了理论分析和技术准备。
For a long time, a common and popular method to solve current convergence problem of microwave power transistor is using emitter ballasting resistor, such as PTC, CTR thermistor, passive devices etc. 长期以来,解决微波功率晶体管的电流集中问题的通用做法是使用发射极镇流电阻,以及PTC,CTR热敏电阻等无源器件。
Temperature collecting uses not-uniform two-direction ballasting resistance as sensor, the signal is non-linear compensation at hardware and software, it's precision can reach 0.1 ℃. 体温采集用热敏电阻作为传感器,在硬件和软件上进行了非线性补偿,测温可精确至0.1℃;
Study on Dual Emitter Ballasting of Silicon Microwave Power Transistor 硅微波功率器件二次发射极镇流研究
A C-band InGaP/ GaAs HBT power transistor with an optimized material structure and device peripheral structure is designed and fabricated by base-emitter metal self-aligning, emitter ballasting, and an electric plated air bridge. 通过优化InGaP/GaAs异质结双极晶体管(HBT)的材料结构和器件结构,采用BE金属自对准、发射极镇流和电镀空气桥等工艺技术,研制了C波段InGaP/GaAsHBT功率管。
Using this method we attained and compared the electrode temperature at different ballasting while the lamps are vertically burning. 用这个方法测量并比较了金属卤化物灯在竖直燃点时,不同镇流器工作条件时的电极温度。
The V-I characteristic has a positive slope. The discharge can operate in parallel to form the large discharge array without individual ballasting resistors. 而且它们的伏-安特性具有正的微分电阻系数,能够很方面地构成大的放电阵列,而不用分立镇流电阻和放电隔离。
The results showed that: The species and abundance of plankton in ballast water and sediments was mainly related with the area which the ballast water ballasting. 研究结果表明:压载水及其沉积物中的浮游生物种类组成和丰度主要跟压载水加载的海域中浮游生物的种类和丰度有关。