While other animals' brain regions development in synchrony, in humans, the development of the PFC lags far behind that of other areas.
其他动物的大脑区域发育是同步的，而人类的PFC发育远远慢于大脑其他区域。
Cut down on the wrinkle-free materials. Five minutes of ironing will spare you from a lifetime of PFC exposure.
少用非褶皱材料，五分钟的熨烫会让你免于长时间暴露在PFC（全氟化碳）之中。
Young children, who have an immature PFC, and stroke patients with extensive PFC damage make more errors as a result of memory-monitoring failures.
少年儿童前额皮层组织不成熟，与前额皮层组织受创伤的病人一样，在记忆追踪失误后会产生更多的错误。
This claim hinges on a peculiar and unique feature of our cognitive architecture: the stunningly slow development of the prefrontal cortex (PFC).
这一观点是基于人类奇特而独一无二的认知结构——发育惊人缓慢的前额皮质(pfc)。
Washington-based consultancy PFC Energy estimates most Middle Eastern oil producers need oil prices this year between $40 and $60 to balance their external accounts.
位于华盛顿的顾问PFC能源，估计大多数的中东石油生产方要求今年的石油价格要保持在40到60美元，以平衡对其的外部账户。
PFC Energy, a consultancy, calculates that 77% of the world's oil and gas is found in countries whose production is controlled by state-owned oil firms and their partners.
PFC能源（一家咨询公司）认为77％的全球石油和天然气储于国有公司和合作伙伴控制着石油生产的国家。
This study presents a new single - stage single - switch PFC flyback DC converter.
文章研究了一种新型单级单开关PF C反激变换器。
As a result of it, PFC has become one of the study focuses in power electronics.
这使得功率因数校正技术成为电力电子研究的热点之一。
The effectiveness of this new psucomprises more than 80%, type PFC - active.
这一新的成效浸泡由超过80%，类型的PFC 主动。
It can also be used for passive lossless snubber in PFC.
提出的结构可以应用于实现PFC的无源无损吸收。
The basic principles of PFC are introduced, and PFC algorithm for first-order plus dead-time system is delivered.
介绍了PF C的基本原理，推导了一阶加纯滞后系统PF C算法。
To reduce the component counts and the cost, the single-stage power factor correction (PFC) techniques have attracted more and more attention.
在低功率应用中，为了减少器件和成本，单级功率因数校正(PFC)技术越来越受到人们的关注。
By putting magnetic particles, PFC and PAM into turbid water made up by kaoline to carry on magnetic flocculating, optimum parameters and mechanism of forming magnetic composite flocs were studied.
通过对高岭土配制的浊度水投加磁粉、聚合氯化铁和聚丙烯酰胺进行磁絮凝反应，研究了形成含磁絮体的最佳工艺参数及机理。
The power factor correction (PFC) and half-bridge inverter circuit topology are commonly used in modern high power factor electronic ballasts.
现代高功率因数电子镇流器结构中普遍采用功率因数校正（PFC）和半桥逆变谐振电路拓扑。
How to choice parameters of PFC main circuit using DSP as control center is described, what is more, two methods to select parameters of PID adjuster are also discussed.
文中讨论了采用数字信号处理器(dsp)作为控制核心时PF C主电路参数的选择，并详细讨论了两种数字PID调节器参数的确定方法。
Zero current transition (ZCT) topology of the single switch three phase boost power factor correction (PFC) rectifier is proposed.
提出了一种零电流开关结构的单开关管的三相升压功率因数校正整流器。
Polyferric chloride (PFC) is a kind of high-efficiency inorganic flocculant and has good prospect in water treatment. But its stability is lower.
聚合三氯化铁(PFC)是一种优质高效的无机高分子絮凝剂，在水处理领域有良好的应用前景，但稳定性较差。
Objective to investigate the effects of aerosolized perfluorocarbon (PFC) on gas exchanges, respiratory mechanics and hemodynamics in a swine model of acute respiratory distress syndrome (ARDS).
目的探讨全氟化碳(pfc)雾化吸入对急性呼吸窘迫综合征(ARDS)猪气体交换、呼吸力学和血流动力学的影响。
Power factor correction (PFC) technique based on SEPIC converter is researched in this paper.
本文对基于SEPIC变换器的功率因数校正技术进行了研究。
To reduce the inductor and the phase displacement between the input current and the input voltage simultaneously, Multi-level (ML) converters are adopted as the PFC topologies in this thesis.
为了同时减小电感和输入电流与输入电压间的相位差，本文提出采用多电平变换器作为PFC变换器的拓扑。
Results from our laboratory suggests that the PFC provides an infrastructure for the rapid synthesis of the diverse information.
从我们的实验结果推测，额前皮质能在多样化的讯息下，提供一个迅速整合的基本结构。
To overcome disadvantages of the circuits, an improved one is proposed, which consisted of diode full-rectifying-bridge and single-switch PFC circuit.
针对这些电路的优缺点及存在的问题，提出新的二极管全桥整流配合单开关PF C电路方案。
To improve the tracking performance of ac servo-system, PFC-PID cascade control strategy is presented by combining the PFC with PID control.
为了提高交流伺服系统的跟踪性能，将预测函数控制(pfc)和PID控制相结合，提出了一种PF C - PID串级控制策略。
In this paper, the characteristic of new type control system of PFC (power factor compensator) of electric locomotive is briefly described, the test is analysed in detail.
简述了新型功率因数补偿装置控制系统的特点，详细分析了新型功补控制系统试验情况，验证了其可靠性，说明新控制系统较原有控制系统性能上有大的改进。
This paper analyse and design the boost PFC, the experiment result show that DC circuit attain high high power factor.
对该功率因数校正电路进行了分析和设计，试验结果表明，该直流电源电路达到了很高的功率因数。
The new approaches for charge pump power factor correction (PFC), digital PFC and on - line UPS with PFC are introduced.
介绍了充电泵功率因数校正（PFC）、数字PFC和带PFC的在线UPS的几种新方法。
This dissertation is focused on the research of soft-switching technology, PFC technology, and integrated power electronic module.
本文的研究包括了软开关、功率因数校正和电力电子集成技术等三个方面的内容。
This dissertation is focused on the research of soft-switching technology, PFC technology, and integrated power electronic module.
本文的研究包括了软开关、功率因数校正和电力电子集成技术等三个方面的内容。
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