fiber material dispertion with different dopping
標(biāo)簽： dispertion different material dopping
上傳時間： 2014-11-28
上傳用戶：cursor
Useful material for ANSYS beginners.
標(biāo)簽： beginners material Useful ANSYS
上傳時間： 2017-09-09
上傳用戶：
mobile station training material
標(biāo)簽： material training station mobile
上傳時間： 2017-09-09
上傳用戶：gououo
物資管理系統(tǒng)material Management System
標(biāo)簽： Management material System 管理系統(tǒng)
上傳時間： 2017-09-26
上傳用戶：dsgkjgkjg
·詳細說明：Procyon方案(手工制作的MP3播放器電路及資料)-procyon plan, hand-planted MP3 player electric circuit and material 文件列表: procyon方案 ...........\Code ...........\....\ata_if.c ...........\
上傳時間： 2013-05-21
上傳用戶：qweqweqwe
·詳細說明：USB體系結(jié)構(gòu),是學(xué)習(xí)USB的好幫手,讓你全面了解USB的好資料,是翻譯國外的書-USB system structure, is the good helper which studies USB, lets you comprehensively understand USB the good material, is the translation overseas book國際著
標(biāo)簽： USB
上傳時間： 2013-06-30
上傳用戶：ndyyliu
cadence material includes caden_layout,CADENCE_20Manual,cs5710-layout1x2 and manual
標(biāo)簽： layout manual 5710 and
上傳時間： 2013-09-10
上傳用戶：kao21
Sensors for pressure, load, temperature, acceleration andmany other physical quantities often take the form of aWheatstone bridge. These sensors can be extremely linearand stable over time and temperature. However, mostthings in nature are only linear if you don’t bend them toomuch. In the case of a load cell, Hooke’s law states that thestrain in a material is proportional to the applied stress—as long as the stress is nowhere near the material’s yieldpoint (the “point of no return” where the material ispermanently deformed).
標(biāo)簽： Delta Sigma ADC 測量技術(shù)
上傳時間： 2013-11-13
上傳用戶：墻角有棵樹
Calculation of the Differential Impedance of Tracks on FR4 substrates There is a discrepancy between calculated and measured values of impedance for differential transmission lineson FR4. This is especially noticeable in the case of surface microstrip configurations. The anomaly is shown tobe due to the nature of the substrate material. This needs to be considered as a layered structure of epoxy resinand glass fibre. Calculations, using Boundary Element field methods, show that the distribution of the electricfield within this layered structure determines the apparent dielectric constant and therefore affects theimpedance. Thus FR4 cannot be considered to be uniform dielectric when calculating differential impedance.
上傳時間： 2014-12-24
上傳用戶：DE2542
A light-emitting diode (LED) is a semiconductor device that emits narrow-spectrum incoherent light when forward-biased.The color of the emitted light depends on the chemical composition of the semiconductor material used, and can benear-ultraviolet, visible or infrared. LEDs are more prevalent today than ever before, replacing traditional incandescent andfluorescent bulbs in many lighting applications. Incandescents use a heated filament, are subject to breakage and burnoutand operate at a luminous efficiency of 2% to 4%. Fluorescents are more efficient, at 7% to 12%, but require highdrive voltage and contain mercury, a toxic substance that may be eventually banned in certain countries. LEDs, however,produce light directly through electroluminescence, operate at low voltage and can deliver over 20% luminous efficiency.
上傳時間： 2013-11-07
上傳用戶：xiaoyuer
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