一转
- 与 一转 相关的网络例句 [注:此内容来源于网络,仅供参考]
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When one of aerators is selected for operation, another aerator will be in standby mode.
当选择只操作一台转碟时,另外一台作为备用,一旦转碟出现故障,将自动切换备用转碟。
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This paper infer to the "Debt shifting share"s legal issues is the no-determine of conimercial company"s legal position, To the problem, the penne suggest: determine Debt shifting share"s legal position, stipulate "capital charge company special law"and legal banner, perfect and attach importance to the company"s charge rules so perfect legal averment and circulation As a policy "debt shifting share " there is no existing experience to learn from."
针对这些问题,笔者相应地提出了一些对策建议,即明确"债转股"三方的法律地位,制定"资产管理公司特别法",建立法律约束机制,重视和完善公司治理结构等方面,从而完善法律环境,解决"债转股"的法律问题。作为政策性"债转股",尚无现成经验可借鉴。商业银行"债转股"是盘活银行不良资产,促进国有企业转换机制的一项重大举措。
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Therefore, according to the second conclusion, in order to obtain the information about mutant glutelin genes, the cloning of new glutelin genes should be done, then the relationship between the new genes and the low glutelin content can be determined.
从这一结果可得出二个不同的推论:一,LGC-1谷蛋白水平下降不发生在转录阶段,它有可能受转录后的某一机制控制;或二,LGC-1谷蛋白水平下降虽然发生在转录阶段,而转录水平发生变化的谷蛋白基因是目前还未被克隆报道过的。
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ABSTRACT Aiming at problems of trans-vector controller in a vehicle-carried induction motor such as variable rotor and stator resistance following motor temperature, and their inductance varying with flux saturation degrees. Firstly, CSI and VSI are introduced, for CSI, it can hold the advantages both FOC and DTC using stator flux directional, PI parameter and simulation are also introduced. Secondly, equations of IM in the synchronous rotary frame and its static counterpart, as figuring in the saturation condition of magnetic field, are dealt in this paper and the simulation results are presented. Thereafter, the parameter designing of PI trans-vector controller is processed, which features the non-linear model. In practical realization, as neglecting the dynamical change of motor inductance, this paper employs online modification of inductance parameters, according to the flux saturation, then transforms the non-linear equations into linear ones, and so compacts the structure of controller. Thirdly, in view of the maximum torque output is extraordinary requisite when Electrical Vehicle start up, accelerate, and overtake, this paper issues the maximum torque when both inverter and battery capacity is corporeally definite. Fourthly, on-line differentiating and analyzing both rotor's time constants and its flux by using the expanding order reduction and discrete Kalman filter equation are fathomed, in order to realize high-performance trans-vector algorithm, and also the simulation results are presented. Fifthly, the close-loop regenerative brake system, when the EV's torque is set constant, is deduced; at the same time, unification of electric drive model and brake model is executed. Combined with maximum charge current demands, the mathematical model for online yielding torque as a demand.
本论文针对车载异步电机在矢量控制器所遇到的问题:定转子电阻随温度变化及随电机饱和程度变化的转子电感及定子电感而影响电机调速性能提出一套完整的解决方案:分析了电流型逆变器和电压型逆变器在实现矢量控制时控制器参数的计算,分析出对于电流型逆变器在采用定子磁场定向时,其性能同时具有矢量控制和直接转矩控制两者的优势,并对电压型逆变器在转子磁场定向下的模型进行了仿真研究;建立异步电机非线性模型,推导出考虑磁饱和时异步电机在同步旋转坐标系及静止坐标系下的方程,并做出了仿真结果,建立异步电机在非线性模型下的矢量控制调节器的PI参数设计,在实际应用中,若忽略电机电感的动态变化,可以根据当前的磁路饱和状态而在线修正电感参数,从而将非线性方程线性化,降低控制器的复杂度;考虑到电动汽车在起动和加速超车时需要电机有最大转矩输出,本文讨论在逆变器容量一定和电池供电能力有限的情况下电机最大转矩输出问题;推导了异步电机扩展降阶、离散卡尔曼滤波方程在线辨识转子时间常数和转子磁通,用于实现高性能的矢量控制算法,并给出了仿真结果;推导出了电动汽车恒转矩给定的闭环回馈制动系统,实现了电动控制模型和制动模型的统一,而且结合铅酸电池最大充电电流的要求,为制动转矩在线给定建立了数学模型;设计了基于双DSP系统的高性能矢量控制器软硬件框图,并以大量实验数据说明矢量控制在电动汽车应用的实际应用状况。
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PIAS proteins play roles mainly through two mechanisms: acting as SUMO E3 ligases to promote modifications of some transcriptional factors and cofactors, especially sumoylation, and to regulate their transcriptional activation; acting as structural proteins to offer platforms for protein-protein interactions and to promote the abstraction and recruitment of other regulators in the cellular signal pathway complexes or gene transcriptional complexes, companied by the subnuclear location of target proteins.
PIAS蛋白的调控机制主要有两种:一种是通过其自身所具有的SUMO(small ubiquitin-related modifiers)E3连接酶活性,促进对一些转录因子、转录辅因子的化学修饰,尤其是SUMO化修饰,从而调控它们的转录活性;另一种是作为构架蛋白,为蛋白质之间的相互作用提供平台,促进细胞信号通路复合物或基因转录复合物中其它调节蛋白的去除和募集,并涉及到靶蛋白的亚核定位。
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The torque ripple in direct torque control system of permanent magnet synchronous motor is analyzed. To decrease the torque ripple in PMSM DTC, a PMSM DTC system based on the strategy of modulating the time of voltage vector is proposed .
讨论了永磁同步电机直接转矩控制转矩脉动问题,针对永磁同步电机直接转矩控制存在较大脉动转矩的缺点,提出了一种模糊调节电压矢量作用时间的永磁同步电机直接转矩控制策略。
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And There was no serious complication;②In the course ofinterventional therapy, Direct portal vein angiography demonstrated vena coronaria ventriculi(100%)andgastricveins(65.26%)andvenagastricaposterior38.43%, Angiography demonstrated venacoronariaventriculi communicate esophagus varicose veins, gastric veins and vena gastrica posterior communicategastric varicose veins. vena coronaria ventriculi had only a small percentage of double vein, about30.57%. The sites of vena coronaria ventriculi arising from the portal vein, splenic vein, portosplenic junction, were found in 52.06%、27.39%、20.55% respectively.③12 extrahepaticprotosystemic shunts were found in these patients. Include gastro-nephrosshuntof 3 cases, 7 caseswere splenetic- nephros shunt and 2 cases shown recanalization of umbilical vein .④The averageportal pressure before and after the procedure were 3.87±1.82kPa and 3.64±1.14kPa in 73patients, but to the time of rebleeding, it was 3.96±0.23kPa in the 11 cases.⑤There werethree kinds of variceal outcome: disappearance (54,low degree (19).⑥Spearman logisticanalyse and ANOVAtest shown liver function class, variceal degree of the splenic necrosis area,the blood direction in portal vein before operation and remain small collateral routes were thesignificant factors concerning outcome of varices.⑦The bleeding volume and portalhypertensive gastropathy are main risk factors of rebleeding.⑧The course of livercirrhosis is the risk factor of survival and extrahepatic portosystemic shunt , fine varices are thebeneficial factors to survival.⑨During all cases'followed-up data, the 1, 2, 3, 4, 5 yearcumulative survival rates and rebleeding rates were 17.81%, 28.77%, 38.36%, 43.84%, 47.95%and93.15%,91.78%,86.30%,83.56%,80.82%respectively. Conclusion The interventional disconnection treatment for liver cirrhosis and portalhypertension was designed suitability. It rapidlycontrol bleeding,butpressure of portal vein was notobvious high, perfusion was not low .it was compared with surgery therapeutic that interventionaldisconnection treatment was safe and had a significant clinical effect to hemorrhage and preventfrom rebleeding.
结果:①术后一过性发热62例(84.9%),腹痛腹胀48例(65.8%)是介入断流术常见的并发症,未发生严重并发症;②门静脉造影显示胃冠状静脉、胃短静脉和胃后静脉的曲张分流的出现率是100%、65.26%和38.34%;显示食管静脉曲张主要由胃冠状静脉供血,胃静脉曲张主要由胃短静脉和胃后静脉供血;胃冠状静脉大多数为单支,少数为双支,其双支的出现率分别为30.57%;胃冠状静脉开口于门静脉主干的为52.06%,开口于脾静脉主干的为27.39%和开口于门脾静脉交汇处的为20.55%;③发现胃肾分流3例,脾肾分流7例、腹膜后门腔静脉分流2例,以及CTA检查发现脐静脉开放者2例;④73例患者介入断流术前和术后平均自由门静脉压力分别为3.87±1.82kpa和3.64±1.14kpa,前后比较存在显著性差异;11例再次介入手术患者的术前、术后和复发后的自由门静脉压力分别为4.02±0.24kpa、3.82±0.25kpa和3.93±0.23kpa ,前后比较发现首次术前与术后存在显著性差异,首次术前和复发出血术前门静脉压力比较无显著性差异;⑤介入术后复查曲张静脉转归基本消失54例,轻度19例;⑥Spearman相关分析和Logistic多因素回归分析,肝功能分级、静脉曲张程度、门脉血流方向和残存小侧支四个因素对曲张静脉转归有影响;Spearman相关分析和Logistic多因素回归分析门脉高压性胃病和出血量等因素对复发出血时间有影响;⑦COX回归分析,门体分流和曲张静脉转归两个因素对术后生存有影响;⑧术后随访6-70月,1、2、3、4、5年的累计复发出血率和累计生存率分别为17.81%、28.77%、38.36%、43.84%、47.95%和93.15%、91.78%、86.30%、83.56%、80.82%;结论:介入断流术治疗门脉高压食管胃底静脉曲张有独特的优点,可以快速直接控制曲张静脉出血而门静脉压力无显著增高,保证了肝脏灌注;与外科分流术相比适应证广、损伤轻、术后恢复快,不易遗漏曲张静脉;肝功能分级、曲张静脉程度、门脉血流方向和残存侧支血管对食管胃曲张静脉转归有影响;门脉高压性胃病对复发出血时间有影响;门体分流和曲张静脉转归对生存时间有影响。
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A device that checks the correctness of transcribed data, usually by comparing with a second transcription of the same data or by comparing a retranscription with the original data.
核对转录的数据是否正确的一种设备,通常的做法是:将转录好的数据与同一数据的第二次转录进行比较,或令转录好的数据的再次转录与原数据进行比较。
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Combination of source rock,reservoir and cap rockA device that checks the correctness of transcribed data, usually by comparing with a second transcription of the same data or by comparing a retranscription with the original data .
核对转录的数据是否正确的一种设备,通常的做法是:将转录好的数据与同一数据的第二次转录进行比较,或令转录好的数据的再次转录与原数据进行比较。
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The band played on, and the swaying couples twisted like bobbing marionettes, to and fro, to and fro, across the great ball and back again, and it was not I who watched them at all, not someone with feelings, made of flesh and blood, but a dummy-stick of a person in my stead, a prop who wore a smile screwed to its face.
Daphne du Maurier, Rebecca 琴鼓声不绝于耳,舞池里双双对对的舞伴,像牵线木偶似地摆动扭曲着身子,转过来转过去,转过来转过去,从大厅的这头转到那头,又从那头转到这头;那个站在一旁冷冷静观的似乎不是我本人,并不是一个有血有肉,有感情的活人,而是一具借托我这形体的泥塑木雕,一具钉上了笑容的木头架子。
- 推荐网络例句
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But we don't care about Battlegrounds.
但我们并不在乎沙场中的显露。
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Ah! don't mention it, the butcher's shop is a horror.
啊!不用提了。提到肉,真是糟透了。
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Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.
Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。