CAMLOGIC CANONGATE CARBOLITEGERO CARLO GAVAZZI CARMINATIMORSE CASTEL CAVEX CBC CBLOWER CEA CEAR CEBORA CEC CECOMP CEIA CEMER CEMP CENTEC CENTRONIC CESI CESTARO CET CFT CGS CHAMBRELAN CHANTO CHERRY CHESTERTON CHIARAVALLI CIGWELD CIMCO CIRCUTOR CLAMP Metal CODIXX COLENTA COLENTAT COMAX COMEPI COMMON COMS...
CAM Buckles - with Spring E-Clip CAM Buckles - with Spring E-ClipComes in blue, yellow, or gray. For use inside van trailers equipped with wood or metal rails and E-Series/F-Series track. Will secure most loads from shifting or falling. ...
图中,PAL/NTSC/SECAM三种制式视频信号可通过SAA7111A的AI11/AI12/AI21/AI22通道输入,如是S端子则占用两路输入通道,其中AI12接S端子的3脚,AI22接S端子的4脚,S端子的1、2引脚接地,实际的使用端口可通过软件选择进行设置。24.576MHz的基准时钟信号通过XTALI输入;AL251的VCLK,VIDHS,VIDVS,HREF是输入视频信号的行...
In the present study, these hydraulic tests were carried out using distilled water at 45 ◦C using a flow of 2.5 mL min−1 and a total volume of 1 L. The above process allowed the authors to obtain the surface of the adsorbent hydrophilic properties, since the moisture in the ...
When sludge pasteurization is mandatory, the digester is usually operated in batch-mode (a sequence of feeding-reaction-withdrawal that is repeated batch after batch) to avoid hydraulic shorts and ensure time-temperature conditions. By supplying a suitable amount of air, several biochemical reactions ...
摘要:用CAE方法分析某汽车柴油发动机油底壳的振动噪声性能。通过油底壳的模态分析、发动机多种工况下的频响分析、辐射噪声及隔声分析、自由场的1 米噪声回放等系列仿真计算,从振动级、辐射声级、声传递损失及声音品质综合分析和评价油底壳的振动噪声性能,并对原油底壳进行振动、噪声、品质优化。
The hydraulic retention time (HRT) was set by regulating the inlet volumetric flow rate, according to: HRT = VR Q (1) A mixture of air-CO2 (5% v/v) was bubbled at a flow rate of 1 L h−1 by means of a sieved silicon tube placed at the reactor bottom. Light was provided by...
步进电机分三种:永磁式(PM)、反应式(VR)和混合式(HB)。 永磁式步进一般为两相,转矩和体积较小,步距角一般为7.5度或15度。 反应式步进一般为三相,可实现大转矩输出,步距角一般为1.5度,但噪声和振动都很大,在欧美等发达国家80年代已被淘汰。 混合式步进是指混合了永磁式和反应式的优点,它又分为两相和五相:...
众所周知,疲劳累积损伤是导致航空产品结构失效的主要原因之一,而结构失效往往给航空器带来灾难性后果,因而在现代航空产品设计中通常要求进行较为准确的结构疲劳寿命预测。由于疲劳的形式和影响结构疲劳的因素都非常繁多,因而并没有一套放之四海而皆准的疲劳寿命预测算法,多数算法都只能在某些特定情况下才能获得满足工程精度...
为了限制和消除泵升电压,保护功率器件,设置过电压保护电路是必要的。在图6中,当电压升高超过设定值后,稳压管VS击穿,使大功率器件VT导通,电阻R与地接通,电容C中多余的能量将在电阻R上发热释放掉,使直流环节的电压保持在基准值之下。 6.过电流保护电路