效率高的

Then three candidate modulation schemes exploiting spatial dimensions are proposed. At last, the three modulation schemes are compared by power efficiency and bandwidth efficiency. It shows that spatial quadrature amplitude modulation scheme is appropriate for long distance wireless optical communications for its high bandwidth efficiency and spatial circular symmetry.

参照传统时域信号设计方案，提出了三种空间调制信号具体设计方案，并从带宽效率和功率效率两性能上进行了比较，结果表明正交幅度调制具有带宽效率高、功率效率低的特点，而且采用的信号点越多其带宽效率就越高，另外其空间信号图案还具有圆对称性，因此非常适合在空间带宽有限的远距离无线光通信中使用。

The electric price of infrared ray equipments is high, making the high cost for the products and low efficiency of drying; The price of boiler and its auxiliaries for the radiating fin drying is high, its repairing fee is large and utilization ratio of fuel is low; Although the drying efficiency of hot wind boiler is high, it has large volume of the equipments and high price and is not suitable for the most enterprises.

采用红外线干燥装置由于电价高，企业生产成本较高，干燥效率低；散热片干燥方式采用的锅炉及其配套设备价格高，维修费用大，燃料利用率低；热风炉虽然干燥效率高，但设备体积大，价格昂贵，大多中小企业不愿使用。

In recent years, SiC FET power transistor and GaN high electron movability power transistor represent the third generation semiconductor-wide bandgap semiconductor power devices, have advantages of high breakdown voltage, high power density, as well as high output power, high operation efficiency, high operation frequency, wide instant aneous bandwidth, operation in high temperature environment and strong ability of resisting radiation.

近年来以SiC场效应功率晶体管和GaN高电子迁移率功率晶体管为代表的第三代半导体－宽禁带半导体功率器件具有击穿电压高、功率密度高、输出功率高、工作效率高、工作频率高、瞬时带宽宽、适合在高温环境下工作和抗辐射能力强等优点。

It includes high power high voltage constant-current-charging system, capacitors bank, discharge control system, power supply of preignition for Xe-flashlamps, general control and diagnostic system. The power conditioning system drives flashlamps that pump the SSHCL. Flashlamps are driven by high voltage Silicon Controlled Rectifiers switched, resonant charged, discharge pulse forming network. The system uses microchip and digital circle which is based on CAN-bus for control and diagnostics. Energy diagnosis and thermal management are controlled by computers.

其中大功率高压恒流充电装置采用了L-C串联谐振电路，充电功率大，效率较高；储能装置采用了多节脉冲成形网络，可产生波形良好的强电流放电脉冲；放电控制装置采用高压大功率晶闸管，开关速度快，工作稳定；预燃与触发装置采用了开关电源电路，效率高、功耗小；总控与测量装置采用基于CAN总线的数字电路和单片机技术，控制冷却系统在激光器出光时对脉冲氙灯进行水冷，并对全系统进行控制和状态检测，同时具有过压、过流、过热等保护功能。

Energy is stored inside the algal cell in the forms of lipids and carbohydrates, and can be converted into fuels such as biodiesel and ethanol. ENN screens fastest-growing、high-lipid content algae with high-throughput screen and genetic engineering technologies; ENN enhances light utilization efficiency and CO2 absorption efficiency with mass-cultivation and low-cost photobioreactor technologies; ENN industrializes micao algae bioenergy with waste water and heat reuse technologies.

采用高通量筛选和基因工程改造，获取生长速度快、油脂含量高、适合工业生产的优良藻种；采用高密度立体养殖技术和高效低成本光生物反应器技术，提高光利用效率及二氧化碳吸收效率；采用含氮、磷较高的工业废水回用技术和工业废热利用技术，提高养殖效率，降低养殖成本，实现微藻生物能源的产业化。

Corporate market value that departures from intrinsic value influences managers behavior and thus holdbacks corporate value creation.

进而，本文采集中国上市公司数据，验证本文提出的有限理性对公司定价的影响机理，实证研究发现：1、中国证券市场上，投资者不能正确判断公司价值创造的效率，从而中国上市公司的市场价值严重脱离公司价值创造的实际情况，出现公司价值创造效率越低，市场对公司的价值预期反而越高的现象。2、背离了公司真实价值创造效率的市场对公司的价值预期强烈影响到公司经理人的投融资和经营行为，阻碍了公司下期的价值创造效率。3、在公司定价偏差对公司内在价值的反作用过程中，行为成本、代理成本和制度成本使经理人理性在现实中受到限制，从而经理人的有限理性行为妨碍并降低公司再投资效率，进而妨碍了公司价值创造效率，从而影响公司的内在价值和市场价值。

Necessary items include access to plentiful supplies of wood (including several cords for starters), a firestarting device, and as previously discussed a traditional wood stove (high efficiency if possible, and with non-electric fan attached) in the case of heating a house, or a "tent stove" in the case of using a tent, tipi or RV for a survival shelter (though be sure to have adequate ventilation).

必须的物品包括了可得到充足的木头（还有几根为初学者准备的绳子）。就暖和房屋来说，得有一个生火的设备，以及先前谈论过的传统的木制火炉（如果可能的话，用燃烧效率高的，并且装有不需用电的扇叶。但如果使用的是帐篷，就需要个蓬内火炉了。

As the inserting angle increases, the reinforced efficiency of the unit volume fraction of the pins to the intensity and modulus of the X-...

随着植入角的增加，单位体积分数的Pin对X-cor夹层结构的强度和模量的增强效率均提高；不同直径Pin对X-cor夹层结构影响不同，大直径Pin对X-cor夹层结构强度增强效率高；小直径Pin对X-cor夹层结构模量增强效率高。

An effective sieve size (ie, sieve pore size and the entire screen surface area ratio) larger, then the screen surface of the unit area of higher productivity and screening efficiency.

对于一定的物料而言，筛子的生产率和筛分效率决定于筛孔尺寸。生产率取决于筛面宽度，筛面宽生产率高。筛分效率取决于筛面长度，筛面长筛分效率高。一般长宽比为2。

Therefore, the EL spectra of (Znq_2)_4 is wider than that of Znq_2. 4._2 was synthesized. The analysis of molecular spatial structure and the characterization of material performance of_2 and Liq showed that two Liq molecules and two Naq molecules were connected by Na-O-Na bond bridges to form_2. Compared with Liq,_2 exhibits stronger rigidity in planar molecular structure, larger steric hindrance and intermolecular distance, and much smaller molecular polarity, thus resulting in much longer fluorescence lifetime, much higher fluorescence quantum efficiency, wider energy bandgap and better film formability. When used as light-emitting layer in OLED,_2 shows lower formation probability of excited dimmer and exciplex formation than Liq, thus emits bluer light with higher current efficiency than Liq. When_2 ultrathin film is used as electron injection layer in OLED, it exhibits higher current density, higher luminance, lower turn-on voltage and higher current efficiency than Liq ultrathin film for the existence of sodium ions in_2 ultrathin film. 5. The summarization the relationship between molecular spatial structure and material performance of Alq_3,(Znq_2) and Liq, lead the conclusion that the molecular spatial structure of Mq_n affects its material performance in such aspects as the rigidity of planar molecular structure, intermolecular interaction, molecule stacking mode and intermolecular distance.

制备了_2，通过对_2和Liq的分子空间结构与性能进行分析与讨论，发现_2是通过两个Na-O-Na键桥将两个Liq和两个Naq连接构成的，其分子平面结构的刚性程度强于Liq，空间位阻大于Liq，分子之间的距离大于Liq，分子极性远远小于Liq；_2的荧光寿命长于Liq，荧光量子效率高于Liq，成膜性优于Liq；_2的禁带宽度比Liq大，光致发光光谱中_2的最大发射峰较Liq发生蓝移；当_2在OLED中作为发光层时，激发二聚体与激基复合物的生成几率远远小于Liq，发的光比Liq更蓝，电流效率大于Liq；_2超薄膜中有Na离子的存在，与Liq超薄膜相比，当其在OLED中作为电子注入层时，具有更大的电流密度，更高的发光强度，更低的阈值电压和更高的电流效率 5、对上述Alq_3、Znq_2和Liq的分子空间结构与材料性能之间的关系进行了归纳总结，认为Mq_n的分子空间结构主要在分子平面结构的刚性程度，相邻分子之间的相互作用，分子堆叠的方式和分子之间的距离这四个方面影响其性能。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。