低频脉冲,low-frequency impulse
1)low-frequency impulse低频脉冲
1.The acupuncture instrument with sound,light and electricity combines ultrasonic technique,laser technique andlow-frequency impulse electrotherapy technique and acupuncture cure,and is used in traditional medicine science,highly improves the effect of clinical cure.声、光、电针灸仪将超声波技术,激光技术,低频脉冲电疗技术,应用于传统医学,同针灸治疗有机的结合在一起,极大的提高了临床治疗效
2.The transmission mechanism of guided wave at joining-section of metal bars and embeded anchor was analyzed theoretically,and an idea oflow-frequency impulse coupled whth guided wave propagating through joining-section was presented.对导波在锚固金属杆中的传播,尤其是在金属杆与锚固交界面处的传播机理进行理论分析,并提出了在锚固交界面处导波以耦合“低频脉冲”传播的思想。
英文短句/例句
1.program control low frequency pulse treatment程控低频脉冲治疗仪
2.Investigation of the bioeffects of ELF Pulsed Magnetic Fields极低频脉冲磁场生物效应的实验研究
3.Study of the Low Voltage and Low Frequency Pulse Electrical Field-ozone Coordination Kill Alage低压低频脉冲电场—臭氧协同灭藻的研究
4.Research and application of low frequency pulsedmagnetic treatment apparatus of tools;刀具低频脉冲磁化处理装置的研制与应用
5.Development of a Portable Low Frequency Electronic Pulse Therapeutic Apparatus Based on FPGA基于FPGA的便携式低频脉冲治疗仪的研制
6.Low-Frequency Pulsed Eddy Current Testing Technology in Quantification of Corrosion on Sub-Surface下表面腐蚀定量中的低频脉冲涡流检测技术
7.This paper introduces the structure and principle of a novel low-frequency electronic pulse therapeutic apparatus.介绍了一种新型低频脉冲治疗仪的基本结构、作原理。
8.Effect of Exercise and Low Frequency Pulsing Electromagnetic Fields on Nitrogen Oxide and Bone Remodeling in Ovariectomized Rats;运动、低频脉冲电磁场对去卵巢大鼠一氧化氮及骨重建的影响
9.Experimental Study of Promoting Fracture Healing by Low Frequency Pulse Electrical Stimulator Combined with External Fixator;外固定架结合低频脉冲电刺激仪促进骨折愈合的实验研究
10.Damaging Effects of Low-Frequency Pulsed Magnetic Fields on Rat and Cultured Cortical Neurons;极低频脉冲磁场对正常大鼠和体外培养皮质神经元的损伤效应
11.Reversal Effects of Low-frequency Pulsed Electrical Field on Multidrug Resistance of MCF-7/ADR to HHT and VCR;低频脉冲电场逆转MCF-7/ADR对HHT和VCR耐药性的研究
12.The Bioeffects of Extremely Low Frequency Pulsed Electromagnetic Field on PC12 Cells and the Study of the Related Signaling Pathways;极低频脉冲电场对PC12细胞的影响以及相关通路的研究
13.Effects of Low Frequency Pulsing Electromagnetic Fields on Endothelial Progenitor Cells Derived from Rat Bone Marrow;低频脉冲电磁场对大鼠骨髓来源的内皮祖细胞的影响
14.Evaluation Based on Low-Frequency Impulse Electrotherapy for Reconstruct of Upper-Limb s Function;基于低频脉冲电疗法的上肢功能重建与评价研究
15.Studies on Chirped Pulse Amplification System at Low Repetition Rate;低重复频率啁啾脉冲放大系统的研究
16.impulse bandwidth脉冲(频)带宽(度)
17.emissions of light and very low frequency perturbations due to electromagnetic pulse sources因电磁脉冲源引起的光辐射和甚低频微扰
18.Study on the Films with Low Surface Energy by Using Continous PCVD and Pulsed PCVD;连续和脉冲射频PCVD制备低表面能薄膜的研究
相关短句/例句
low-frequency pulse低频脉冲波
1.Study on the effect law oflow-frequency pulse waves on the seepage performance of reservoir cores;低频脉冲波对储层岩心渗流特性影响规律研究
3)low frequency electric impulse低频电脉冲
1.The principle oflow frequency electric impulsed production technique is that electric energy,stored in ca-pacitors through boosting,rectifying and charging circuits,are released instantaneously by trigger circuits to produce vibration waves which can improve seepage flow in forma-tions,thus enhancing recovery factor.低频电脉冲采油技术是通过升压、整流、充电等电路将电能蓄积在电容器中,通过触发电路,使能量瞬时释放,在井内液体中产生震动波,作用于地层,改善地层的渗流状况,达到提高采收率的目的。
4)low frequency magneto-pulsing低频磁脉冲处理
5)low frequency pulse magnetic field低频脉冲磁场
1.DSC study on nanocrystallization of amorphous Fe_(78)Si_9B_(13) alloy treated bylow frequency pulse magnetic field;低频脉冲磁场处理非晶Fe_(78)Si_9B_(13)合金纳米晶化的DSC研究
2.Effects oflow frequency pulse magnetic fields on proliferation and tube formation of rat bone marrow-derived endothelial progenitor cells低频脉冲磁场对大鼠骨髓源内皮祖细胞增殖和体外血管化的影响
3.The amorphous Fe78Si9B13 alloy was treated bylow frequency pulse magnetic field(LFPMF) and nanocrystallized at a low temperature.用低频脉冲磁场处理非晶Fe78Si9B13合金,在低温下发生了纳米晶化,利用Mssbauer谱和LDJ9600震动样品磁强计进行了微结构和磁性分析。
6)Alternate low frequency pulse低频交变脉冲
延伸阅读
磁层甚低频发射磁层中除由雷电辐射产生的哨声外，还存在一些天然的和受其他电磁波触发的甚低频电磁波。这些电磁波的频率范围与哨声相近，但出现的持续时间和频率－时间关系却多种多样，从持续时间只有几分之一秒的离散型到持续几十分钟以上的宽频带连续发射型，统称为甚低频发射。在离散型甚低频发射中，准周期型的电波(如合声)由从10赫到 5千赫的许多频率的上升调和下降调叠加而成，多发生在等离子层外的日照面赤道附近。触发离散型（如受哨声触发）发射，频率与哨声的频率范围相同，最常见的发生在哨声的上截止频率处(＝/2，为哨声传播路径顶点的电子回旋频率)。它有上升调也有下降调,形状很不规则,在等离子层顶附近出现最多，有时还有准周期型的触发发射。在高、中纬度地区，大功率电力网的高次谐波也在磁层触发甚低频发射，在沿等离子层顶内侧能观测到在这些高次谐波上叠加有上升调或下降调的离散型或准周期型的触发发射，它与合声不同之处是依附在工频的高次谐波上。受人工发射机信号触发的甚低频发射,依赖于发射信号的脉冲宽度、频率和功率，也依赖于电离层与磁层的条件。在适当的条件下,仅有100瓦的奥米加导航电信号也能触发甚低频发射。在宽频带连续型甚低频发射中，等离子层嘶声的频率为10赫～5千赫,在等离子层顶和等离子层内能观测到。极光区嘶声的频率从几千赫至 100千赫。它们和上述受触发的离散型有明显的准相干波列不同，嘶声表现为非相干的,类似于随机噪声的宽带特性,极光区嘶声发生在极光区上空2000公里附近，与极光的出现有很大的相关性。此外，还有一种在地面上接收不到、但在卫星上能接收到的高于电子回旋频率的右旋非常波模电磁波，因为频率高于哨声模电磁波，称为高通噪声。它是地球发出的、波长为千米数量级的无线电辐射，又称地球千米辐射。磁层是能谱宽广（从等离子层内部几个电子伏的低能粒子到辐射带中高达几百兆电子伏的高能粒子）的空间等离子体，在磁层中存在等离子体不稳定性，甚低频发射正是这些不稳定性所激发的电磁波。这是60年代以来的新发现（见磁层电磁波）。通过实验证实，在近赤道平面区由捕获的高能粒子与波产生的回旋共振不稳定性产生触发型甚低频发射；大功率电力网激发的甚低频发射，引起捕获粒子的投掷角散射，从而使高能粒子沉降；人工发射信号受波与粒子的相互作用后被放大达30分贝等现象，推动了理论的发展。
