PFM

  • n.功率因数计
  • 网络脉冲频率调制(pulse frequency modulation);脉频调制(Pulse-Frequency Modula.);烤瓷熔附金属全冠(porcelain fused to metal)

PFMPFM

PFM

脉冲频率调制(pulse frequency modulation)

本节主要介绍目前应用最多的脉冲频率调制( PFM )和脉 冲宽度调制( PWM )光发射机原理。 www.ysu.edu.cn 1.PFM 光发射

脉频调制(Pulse-Frequency Modula.)

  控制电路由脉频调制PFM)电路、电压采样、保护电路等组成。电压采样电路将取出与输出电压成正比的信号,送至脉频调制 …

烤瓷熔附金属全冠(porcelain fused to metal)

在普通烤瓷熔附金属全冠PFM)的修复存在着牙龈着色,牙龈红肿等不足时,而贵金属烤瓷全冠价格昂贵,普通人群难以普 …

脉冲频率调变

这些脉冲频率调变PFM)DC-DC转换器具有on-board低饱和电压交换电晶体,只需要一个电感器即可实现高效率的LED照明 …

马可尼冠军面包店乐团(Premiata Forneria Marconi)

这年,他与意大利最著名的摇滚乐队“马可尼面包房赞助乐队”the Premiata Forneria MarconiPFM)一起,开始举行巡回演唱 …

脉冲调频

这款芯片还具有脉冲调频PFM) ,它在低电压范围下非常高效,使器件在待机模式下功耗更低。新型转换器芯片MB39A145 …

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PFM space is of huge value, which can be used to be description frame to define and analyze project management problems. PFM空间具有广阔应用价值,可以作为描述框架来定义和分析项目管理问题。
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Objective To investigate the clinical result of sectional PFM fixed bridges on tilted submandibular abutments. 目的研究栓道式附着体在下颌倾斜基牙修复中的临床应用效果。
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Objective: To evaluate the clinical effect of the hydrocolloid impression used in PFM crown and bridge. 目的:探讨寒天印模材料在制取烤瓷冠桥印模修复中的临床应用效果。
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This can be sealed into place on both vertical and horizontal PFM form-fill-seal machines to make reclosable bags. 这可以被密封在纵向和横向的烤瓷成型充填封口机,使夹链袋到位。
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Color reproduction is an important factor in the success or failure of PFM(porcelain-fused-to-metal) restorations . 修复体色彩再现是临床上烤瓷修复成败的一个重要因素。
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Objective To explore a method for repairing the color defect of porcelain-fused-to-metal crown (PFM) and expressing individual character. 目的:探讨弥补烤瓷修复体颜色表达不足及体现个性特征的手段。
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The ZXLD1350 is a PFM inductive back converter designed to drive up to three 1W series connected white LEDs from a 12V source. ZXLD1350做为一个PFM诱导回落转换器,是专为驱动3个1瓦的由12V电源供给的白色串联LED设计的。
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ConclusionPost-and-core PFM crown is a simple convenient and effective way for restoring residue crown and residue root. 结论桩-核-冠烤瓷修复残根残冠是1种简便易行、效果良好的修复方法。
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This research gives a theoretical support of application of PFM bridge fixed by telescopic crowns retainers. 本研究为套筒冠烤瓷桥在临床的应用推广奠定了理论基础。
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Objective To evaluate the clinical results of PFM restoration and prosthodontics. 目的金-瓷修复体的临床效果评价。
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Methods Through the 180 cases of PFM crown and bridge repair in patients with the production and follow-up observation. 方法通过对临床180例金属烤瓷冠桥修复体患者进行制作、随访和观察。
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The result shows PFM model has some prediction power, and the prediction rate is obviously lower than those in developed countries. 实证结果表明PFM模型在我国具有一定的预测能力,但预测准确率低于在欧美国家的准确率。
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Objective To investigate the various ways of coating applied in the PFM crowns. 目的探讨多色涂布法在金瓷全冠仿生修复中的应用。
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Method The casting post core was made to use PFM again. 方法:采用铸造桩核的方法达到重新制作的目的。
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The control scheme is Pulse Frequency Modulation(PFM). 采用脉冲频率调制方式;
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Results 31 cases of PFM were stained and showed satisfying results. 结果:31例烤瓷冠进行外源性染色,效果满意。
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Objective To study on the application of PFM in the reconstruction of fracture anterior teeth. 目的金属烤瓷冠在折断前牙修复中的应用效果。
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The Clinic Study of the Gingival Health Influence of Two Methods preparing PFM Shoulder 金属烤瓷冠肩台制备方法对牙龈健康影响的临床研究
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Construction of a three-dimensional finite element model for the PFM bridge of the mandible tooth 下颌前牙金属烤瓷桥三维有限元模型的建立
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The analysis from the shade selection result of restoration with PFM in different conditions 烤瓷熔附金属全冠在不同条件下比色结果分析
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Effect of Homogenization Heat Treatment on Hardness and Microstructure for a Pd-free High Gold Dental PFM Alloy 均匀化热处理对牙科烤瓷无钯高金合金组织性能的影响
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A study of the effect of root canal pin on increasing the strength of bending resistance of PFM crown abutment 根管钉加强烤瓷冠基牙抗折强度作用的研究
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A comparison of the clinical results of simultaneously or separately fabricated PFM post and core crowns 同步与分次制作金属烤瓷桩核冠的临床效果比较
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Influence of PFM restoration on the health of periodontal tissues and its protection 金属烤瓷修复体对牙周组织健康的影响及保护
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Scanning electron microscopic observation on changes of metallic base with different treatment in PFM 对金属烤瓷修复体的金属底层进行不同处理后的扫描电镜观察
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Assessment and analysis of periodontal condition for detachable PFM fixed bridges abutment teeth 可拆卸式PFM固定桥基牙牙周状况的评定分析
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The Labial Periodontal Detection of PFM Crown after Clinical Tooth Preparation Used by Dental Magnifier 使用牙科放大镜临床牙体预备后金瓷冠唇侧牙周状况的评价
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A Comparative Study on Experimental and Mathematical Analysis of Mechanical Properties of PFM 烤瓷熔附金属修复材料实验力学与计算力学比较研究
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Preliminary analysis about influence of porcelain thickness on interfacial crack of PFM 瓷层厚度影响金瓷界面抗断裂能力的初步研究
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Determination of linear sintering shrinkage rate of PFM crown 烤瓷冠;线收缩率;内冠