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Coriolis flowmeters rely on vibration to conduct their measurements, where the vibration is normally excited and detecte......
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目的观察全牙弓种植固定修复患者修复体组织面菌斑附着情况及口腔清洁状况，探究相关影响因素。方法纳入2012年1月至2020年9月于北京......
Owning her own home was never a dream for Lyndsey Yates. The freelance graphic designer and her partner Mark， a web desig......
Prediction and control of the permanent settlement of a track caused by traffic loading from trains is crucial to high-s......
Compared to the current eddy braking patterns using a single magnetic source,hybrid excitation rail eddy brakes have man......
A French-styled villa sits in a garden at 1843,Huaihai Road Central, Shanghai. The last ownerof this villa was Madam Son......
现在，只要说起“绿卡”，几乎无人不知。问题也就在这里：凡流行语(词)虽大家心照不宣，似乎人人都懂，却谁也无法予以明确界定。好在有一点......
Background:Bone marrow mesenchymal stem cell (MSC) transplantation is a promising strategy in the treatment of myocardia......
Land-use change is intertwined with tourism because land is used as a resource for human activities.Land-use change also......
“Wuthering Heights” is the representative work of Emily Bronte. According to some comments, “Wuthering Heights” sho......
Generally, literary styles are used widely, such as novels, prose, poems, and plays. They have common characters: abunda......
We discuss the dynamics of ultrashort pulsed laser excitation in bulk optical silica-based glasses(fused silica and boro......
Rising concern in environmental issues on global scale has made energy saving in powered equipment a very important subj......
In this paper,the bolt-and cable-supported structures mainly refer to anchored cables,anchored bolts,soil nails and othe......
A role for lipids as agents to alleviate stroke damage: the neuroprotective effect of 2-hydroxy arac
Cerebrovascular accident(CVA)or stroke is one of the world’s leading causes of death and permanent disability.The high ......
AIM: To assess the effectiveness and side-effects of lamivudine therapy for children with chronic hepatitis B (CHB) who ......
The National Strong Motion Observation Network System (NSMONS) of China is briefly introduced in this paper. The NSMONS ......
一、多项选择 1. People think “SOS” is the simplest and common_________ to make， in time of danger or disaster. A.......
1. It is not socially _______ for parents to leave children unattended at that age. A. availableB. affordableC. accep......
The first comprehensive experimental facility of high intensity cyclotron in China has been successfully developed,whic......
inan， capital of Shandong Province， is the provincial center of politics， economy， culture， finance， transport， convention and ......
Comment loger en France...
The paper investigates the relationship between changes in asset wealth and the trendmovements of household consumption......
In today’s world economy, France is one of the major developed countries, the sixth-largest economy, the fifth trading ......
Neural networks require a lot of training to understand the model of a plant or a process. Issues such as learning speed......
A novel fiber Bragg grating (FBG) current sensor with temperature compensation has been proposed. The fiber Bragg gratin......
A GMR(giant magneto-resistive) spin valve sensor for magnetic recording has been designed in an attempt to solve the Bar......
We propose a novel non-contact rotational sensor based on a fiber Bragg grating(FBG) packaged in a core of a magnetic he......
根管治疗是目前治疗牙髓炎和根尖周病的常用方法，但是复杂的变异根管系统常常会影响根管治疗的效果，甚至导致失败。因此，强调根管形态......
目的：探讨永久性心脏起搏器植入术中及术后并发症发生的原因、处理方法及其预防措施。方法：回顾性分析我院2012年6月～2013年12月186例......
A magnetically rotational reactor (MRR) has been developed and used in absorbing benzene emissions. The MRR has a perman......
无地农民是地权稳定乃至地权固化后形成的一个具有中国特色的农村特殊群体,解决无地农民权益保障问题事关社会和谐稳定、脱贫攻坚......
依据集族的相异代表系的个数与集族的关联矩阵的积和式的等值性;利用矩阵的积和式的一些性质,证明了集族存在唯一的相异代表系的一......
在分析三电平空间矢量脉宽调制技术和永磁同步电动机数学模型的基础上,采用转子磁场定向控制策略设计了一套应用SVPWM三电平逆变器......
为了使混合动力汽车的永磁同步电机获得快速的转速响应和稳定的静态特性,介绍了一种基于数字信号处理器（DSP）的矢量控制方案,将矢量......
在先进性教育活动中，机电工程学院党委注重发挥党支部的能动作用，在建立保持共产党员先进性的长效机制方面做了大胆尝试。在教师队伍......
提出一种基于模糊集合理论的电力系统单相自适应重合闸优化算法.该算法能够正确进行瞬时故障与永久故障的区分.当瞬时性故障发生时......
In recent years,people are looking for a new compact THz source with high emission power,one potential choice is to buil......
1.Wind energy Wind is a kind of clean,pollution-free and renewable energy with great potential.Wind power generation ref......
针对内嵌式永磁同步电机永磁磁链辨识存在的问题,采用一种基于滑模变结构的永磁磁链参数辨识方法。首先,通过选择磁场同步旋转坐标......
考虑一类具有时滞和生物控制的非自治多种群Lotka-Volterra互惠系统，利用微分方程比较定理和重合度理论中的延拓定理，通过构造适当的......
图G的Hosoya指标定义为G的所有独立边集元素数目的总和,对于m-匹配树来说,到目前为止已经研究了第一小至第五小的Hosoya指标,侯耀......
自20世纪60年代永久性起搏器的成功运用以来,经过五十多年的发展,心律植入装置（cardiovascular implantable electronic device,CIE......
为了削弱圆筒型永磁直线电机的齿槽力，在简要介绍圆筒型永磁直线电机齿槽力产生原理的基础上，基于Ansoft软件对圆筒型永磁直线电机的......
采用由室内反复加载三轴试验建立的路基土永久变形预估模型，计算了典型土组路基永久变形的量值。分析表明，随着路基回弹模量的提高，其......
目的：通过对比采用窝沟封闭术（PFS）儿童连续3年窝沟封闭剂留存及其龋齿情况，探讨应用PFS后对预防龋齿的临床疗效。方法：将2009年1月-201......
光电搜跟系统在低速跟踪状态工作时,由于转轴之间存在非线性摩擦力矩,会引起跳动或“爬行”现象,非线性摩擦力矩还会降低角分辨率......
节气门是汽车发动机的重要控制部件。传统发动机节气门操纵机构是由加速踏板拉索直接控制节气门开度，这种机械式的节气门控制方式很......
证明了非负交换整半环上矩阵半群的一个子半群是积和式半群当且仅当这个子半群中的每一个矩阵至多含有一个非零对角。......
考虑食饵具有阶段结构的Leslie型模型．证明了解的最终有界性和系统在一定条件下的一致持续生存性，研究了平衡点的局部稳定性．通过构建......
