查询词典 coils

To design of high performance MRIgradient and RF coils is always the hot topic in MRI academical and industry field and lots ofmethods have been proposed to design the coils,which needs certain numerical calculation.

高性能MRI梯度和射频线圈的设计一直是MRI学术界和工业界的研究热点问题，已经有大量线圈设计方法提出，其中都涉及到一定的数值计算。

Biological pesticide pyrethrum 50 per cent of the original drug and aerosol, sprayed the Treasury agents, natural pyrethrum mosquito coils, electric-mosquito coils and other agents of natural Pyrethrum ; Melia azedarach plight of 100 percent neem oil, 37 percent Melia azedarach EC, 0.3 percent Melia azedarach EC.

生物农药有50%除虫菊原药及气雾剂、喷务剂、天然除虫菊蚊香、电热蚊香片等天然除虫菊素制剂；苦楝素100%苦楝原油、37%苦楝乳油、0.3%苦楝乳油。

A novel layout of IC transformer is proposed to achieve both high turn ratio and coupling coefficient in this paper. In order to discuss the coupling coefficient, the layouts are designed with different turn ratio. The thesis is mainly includes of three experiment topics. The multi-stack structure is proposed to achieve prior goal in first topic. Two groups of proposed devices are designed to maintain identical self- inductances in transformer's primary and secondary coils. Total six devices are fabricated in foundry 90-nm CMOS technology. Using the 9 and 5 metal layers in primary and secondary coils in a specific layout, measurement results show that the transformer has the largest benefit using the bottommost return layer in layout design. In one word, the adoption of more metal layers to construct different turn ratio transformer shows not only improving the N value but also saving the chip area in this experiment.

中文摘要本文是针对不同圈数比变压器探讨其耦合量的变化，并且期望其变压器能同时达到高圈数比及高耦合系数的特性，本论文主要可分为三个实验主题，首先第一个主题提出以90nm CMOS制程技术实现的多层金属层的布局方式，并以相同的一、二次侧自感值分为两组，利用不同返回层来达到不同的圈数比，且从量测结果可以得知，在变压器布局设计上使用最底金属层来作返回层会得到较好的特性，最后从此实验得知一结论，利用合适的多层金属架构达到不同的圈数比，不仅可以改善圈数比，还可以缩小晶片面积。

Factory specializing in the production and processing of magnetic ring coil, hollow coils, Choke coils, RF coil, matching coil, coil, such as a full range of oscillation Vertical, horizontal inductor passive components.

工厂专业生产及加工磁环线圈、空心线圈、扼流线圈、射频线圈、匹配线圈、振荡线圈等全系列立式、卧式电感器被动元器件。

Was established in January 2004 to produce the development of SMD transformers, switching power supply transformers, driver transformers, matching transformers, small transformers, low frequency transformer, power filter, choke coil inductor, linear inductor coil , air core coils, such as various types of transformers and coils of professional manufacturers.

显龙电子有限公司成立于二零零四年一月，以生产开发 SMD 变压器、开关电源变压器、驱动变压器、匹配变压器、小型变压器、低频变压器、电源滤波器、扼流电感线圈、线型电感线圈、空芯线圈等各类型变压器及线圈的专业厂家。

Professional produce all kinds of self-adhesive coils, special coils, toys wiggler coil, inductance coil, self-adhesive hollow coil, IC card coils, animal ears, feet standard coil, bar magnet coils, round coin card coil, coil key chain, coin coils, motor coils, BOBBIN coils, ID card, thick card coil, mouse coil, induction coil, the Housing cards coil, coil scales, and other unclassified key accessories, pendulum pendant jewelry, VCM voice coil, speaker voice coil, the runway shaped speaker voice coil, DVD laser head coil, flat motor coil, mobile phone vibration motor coils, all kinds of self-adhesive shaped coils and so on.

专业生产各种自粘线圈、特殊线圈、玩具摇摆器线圈、电感线圈、自粘空心线圈、IC卡线圈、动物耳、脚标线圈、磁棒线圈、圆币卡线圈、钥匙扣线圈、投币器线圈、马达线圈、BOBBIN线圈、ID卡、厚卡线圈、鼠标线圈、感应线圈、房卡类线圈、衡器线圈和其他未分类钥匙配饰、摆挂件饰品、VCM音圈、喇叭音圈、跑道形喇叭音圈、DVD激光头线圈、扁平马达线圈、手机振动马达线圈、各种自粘异型线圈等。

In order to study characteristics of the early signal with TEM, the authors formulated self-induction formulae for single coil and multi-turn coils, deduced theoretical expressions for the amplitude of the loop self-induction signal, and gave the induction of single coil and multi-axial coils. The response curve of buried object affected by the coils nod the length of loop's change are also studied.

为研究瞬变电磁早期信号的特性，讨论了多匝线圈与单匝线圈的自感系数的关系，得出线圈自感信号振幅的理论表达式，推导了单匝和多匝回线的电感公式，分析了回线匝数和回线边长的变化对目标体响应曲线的影响。

We proposed a set of tabulate shim coils to improve the imaging field homogeneity for permanent magnet. By studying the magnetic spherical harmonics and its Taylor expansion, the proposal of designing lower-order radial coils was derived including x, y, xz, xz~2, x~2-y~2 etc. In addition, a novel composite design was presented for the axial coils. By controlling the shim currents of axial coils, different axial magnetic fields can be obtained. This method simplified the design process of axial coils, and made the axial correcting magnetic field more precise.

本文针对永磁体的组成结构提出了一种平板式匀场线圈设计方法，通过研究成像磁场的球谐函数以及通电圆弧在自由空间产生磁场的泰勒展开级数，导出了x、y、xz、xz~2、x~2-y~2等低阶径向线圈的设计方法，同时针对轴向线圈提出了一种新的混合式设计方案，能够通过控制线圈中的电流组合实现对不同轴向磁场分量的获取，简化了轴向线圈的设计过程，提高了校正磁场的准确性。

We maily product a kinds of MAGNETOS, STARTING COILS, LIGHTING COILS, FLASHER, IGNITION COILS and regulator n.

目前我们主要生产各种磁电机、起动线圈、明明线圈、点火线圈、稳压器等汽摩部件。

Through detailed theory analysis and formulas, the paper raveled out the limitation of big section and small section, and got conclusion that current transformer with big section and high quality PCB rogowski coils has the same measure principle as the one with ideal rogowski coils, which provides the theoretical basis for optimization design of current transformer with PCB rogowski coils and its application in the power system of mining area.

文章通过详细的理论分析和推导，解除了对截面大小的这一限制，得出大截面、高精度的PCB空心线圈电流互感器具有和理想空心线圈电流互感器相同测量原理的结论，为PCB空心线圈电流互感器的优化设计和在矿区电力系统中的应用提供了理论基础。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失