This trend, combined with investor assumptions that oil prices will remain high, have helped boost prices further, which has in turn fed more investor speculation in the market. 这种趋势,加上投资者推断石油价格会持续走高,都促使价格进一步攀升,随之滋生了市场中投资者更多的投机行为。
Kick your memory power into high gear with savvy ways to boost your brain. 用聪明的方法让记忆力高速运转起来,提升你的脑力吧。
Still, passenger growth has been especially strong, particularly among domestic travelers, and ticket prices have remained high-another boost to profits. 此外,客运量增长格外强劲,特别是国内旅客方面;而且票价一直处于高位&成为提高利润的另一个因素。
High power and high efficiency soft-switching boost DC-DC converter with a passive resonance 大功率高效率无源谐振软开关boostDC-DC变换器
Further deals are expected this year as continued high oil prices boost the spending power of the six states in the Gulf Cooperation Council region. 海湾国家今年预计将参与更多并购交易,因为持续高企的油价提升了海湾合作委员会(gulfcooperationcouncil)地区6国的购买力。
Alginate is high in fibre, so it can boost the fibre content of foods. 藻酸盐中含有大量纤维,能够增加食物中纤维的含量。
He alleged that Japanese banks are keeping Tibor the Tokyo benchmark rate artificially high in order to boost profits on domestic products such as mortgages. 他指控,日本各银行正人为地将东京基准利率东京银行间拆借利率(tibor)保持在高位,以提高抵押贷款等国内产品的利润。
Design on a High Efficiency Low Voltage Boost Converter Chip 一种高效率低电压升压转换芯片的设计
Results The XRP is the same as simvastatin can evidently reduce TC and TG content, middle XRP dose and high XRP dose group can markedly boost up HDL-C level. 结果血管软化丸和舒降之一样能显著降低大鼠血清总胆固醇、甘油三酯,中、高两个剂量可明显升高大鼠高密度脂蛋白胆固醇含量。
Colorado combines a high rate of foreclosures with a boost from the commodities boom. 科罗拉多州丧失抵押品赎回权比例较高,但也受到了大宗商品繁荣的推动。
Performance prediction of mid-speed diesel engine with high boost pressure 高增压中速柴油机性能预测
On the other hand, serious environmental problems have emerged in the west. The fragile ecological environment in the west can not afford to the so called "modernization" development idea and develop mode, which is based on high resource consumption to boost economic growth. 另一方面,西部地区已出现严重的环境问题,西部脆弱的生念环境已不能承受以高资源消耗促进高经济增长和高消费为核心的所谓的现代化发展观念和发展模式。
The high efficiency integrate-reset-control three-phase boost type power factor corrector has these characteristics as follows: ① Constant frequency control, which gives advantage to filter design; 积分复位控制高效率三相Boost型PFC具有如下特征:①常频控制,有利于滤波器的设计;
The Integrate Reset Control high efficiency single phase boost type power factor corrector has these characteristics as follows: It's constant frequency operation, which is of advantage of the design of filter. 积分复位控制(IRC)高效率单相Boost型功率因数校正技术(PFC)具有常频控制,有利于滤波器的设计;
It consists of high frequency PWM boost chopper and digitalized SPWM inverter. It features IGBT multiple protection and special design for the protection of locomotive from EMI. 该电源由PWM高频升压斩波器及数字化控制SPWM逆变器组成,具有IGBT多重保护及机车抗EMI特殊设计。
Design of a High Performance DC-DC Boost Converter 一种高性能DC-DC升压变换器的设计
The simulation results show that the regulated two-stage turbocharging system can provide high boost pressure, which can be maintained from the maximum torque point to the maximum power point through the regulated function of the bypass valve. 计算结果显示:可调二级增压系统可以提供很高的压比;在调节阀作用下,柴油机外特性最大扭矩点到标定点的总压比可以维持不变。
The target function's optimal velocity is high, so it can boost learning efficiency of feed forward neural networks. 此目标函数的优化速度快,大大提高了前馈神经网络的学习效率。
Aimed at the single-chip switching mode power supply circuits, which presently have wide applications in portable devices, control circuits applied in a high efficiency boost DC-DC converter for driving white LEDs have been designed in this thesis. 论文针对现在广泛应用于便携式设备的单片开关电源电路,分析和设计了一种驱动白光LED的高效升压DC-DC转换电路中的控制电路。
This paper presents the design of a BiCMOS driver circuit for low voltage and high frequency boost DC-DC converter. 本文给出一种适用于低电压高开关频率升压型DC-DC转换器的BiCMOS驱动电路。
Analysis of High-gain Boost Converter With Coupled Inductors 带耦合电感的高增益比Boost变换器的分析
A study on the application of high combustion velocity motors in boost phase penetration technology of strategic missiles 速燃发动机在战略导弹助推段突防技术中的应用研究
This paper introduces a kind of nonlinear-carrier ( NLC) controller for high power factor boost converters. Using the NLC controller, input line voltage and current sensing, error amplifier in the current shaping loop, and analog multiplier/ divider are eliminated. 阐述了一种非线性载波(Nonlinear-carrier)控制的PFC电路,该电路与传统单级功率因数校正电路相比不再需要输入电压、电流采样以及复杂的模拟乘法器和电流误差放大器电路。
Offshore wind farm has caught much attention from various countries in the world for its advantages of high velocity, low turbulence, boost output, ect. 近海风电场凭借其低湍流、高风速、高产出等优势,备受世界各国关注。
Because of its advantages of small input current distortion and high efficiency, Boost converter is usually used in the pre-regulator of two-stage PFC, to realize high power factor. Boost变换器具有输入电流畸变小、效率高等优点,通常被用在两级PFC的前级以实现高功率因数。
However, as the increase of opening up, high economic openness is able to boost domestic market integration. 但是,随着对外开放水平的不断提高,进一步的经济开放能够促进国内市场一体化发展。
Usually, in order to obtain a high output voltage, a boost circuit would be added to the front-end of the inverter to compose a two-level inverter. That structure reduces the efficiency and strictly prohibit the shoot-through state of the inverter bridge. 通常为了获得较高的逆变输出,会在逆变器的前端增加升压电路构成两级式逆变器,经过两级变换不仅降低了效率,而且严格禁止逆变桥上下桥臂直通状态的发生。