Oscillation frequency

Lecture "Radio Communication Circuits: Chapter 5&6" presents the following contents: RF Filters, Oscillators and Frequency Synthesizers (RF Oscilators, Voltage-Controlled Oscillators (VCO); Phase-Locked Loops (PLLs) and Applications). Invite you to consult.

65p doinhugiobay_12 15-01-2016 44 4   Download

Agenda: Positive feedback oscillator concepts, negative resistance oscillator concepts (typically employed for RF oscillator), equivalence between positive feedback and negative resistance oscillator theory, oscillator start-up requirement and transient, oscillator design - Making an amplifier circuit unstable, constant |Γ1| circle, fixed frequency oscillator design, voltage-controlled oscillator design.

49p bko123 19-02-2017 56 3   Download

Lecture Physics A2: Oscillations - PhD. Pham Tan Thi present the content what is an Oscillation, simple harmonic oscillation/motion, period and frequency, angular frequency, displacement as function of time in SHM,...

24p xusong 21-07-2021 17 2   Download

The aims of this study are to develop and apply the method of using frequency response functions to diagnose cracks in elastic bar and beams structure. The contents of the study includes: building models of cracked elastic bar and 3 beams structure; studying the changes of oscillation parameters, mainly frequency response functions due to cracks.

27p larachdumlanat129 20-01-2021 24 6   Download

The objective of the thesis: Study the effect of cracks on the dynamic characteristics of the structure, study the applicability of the time-frequency signal processing method in detecting cracks. Application and development the processing time-frequency oscillation signals methods for cracks detection.

37p xacxuoc4321 09-07-2019 47 6   Download

Fluorescence ratio imaging indicates that immobilized, aspirin-treated platelets, loaded with Fura-2, respond to inositol 1,4,5-trisphosphate- (InsP3)-generating agonists such as thrombin by high-frequency, irregular rises in cytosolic [Ca 2+ ] i with spikes that vary in peak level and peak-to-peak interval. This differs from the regular [Ca 2+ ] i oscillations observed inother, larger cells.

10p research12 29-04-2013 44 3   Download

In both industrial fermenters and in their natural habitats, microorganisms often experience an inhomogeneous and fluctuating environment. In this paper we mimicked one aspect of this nonideal behaviour by imposing a low and oscillating extracellular glucose concentration on nonoscillating suspensions of yeast cells. The extracellular dynamics changed the intracel-lular dynamics – which was monitored through NADH fluorescence – from steady to equally dynamic; the latter followed the extracellular dynamics at the frequency of glucose pulsing....

9p awards 06-04-2013 48 4   Download

Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học quốc tế cung cấp cho các bạn kiến thức về ngành y đề tài: Noise levels produced by high-frequency oscillation...

1p coxanh_6 30-10-2011 32 2   Download

Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Critical Care giúp cho các bạn có thêm kiến thức về ngành y học đề tài: Ventilatory management of ARDS: high frequency oscillation and lung recruitment!.

2p coxanh_3 25-10-2011 47 4   Download

Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Critical Care cung cấp cho các bạn kiến thức về ngành y đề tài: Allowing for spontaneous breathing during high-frequency oscillation: the key for final success?

2p thulanh17 24-10-2011 60 3   Download

Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học 'Respiratory Research cung cấp cho các bạn kiến thức về ngành y đề tài:"Airway smooth muscle relaxation results from a reduction in the frequency of Ca2+ oscillations induced by a ...

20p toshiba13 21-10-2011 46 7   Download

Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học 'Respiratory Research cung cấp cho các bạn kiến thức về ngành y đề tài:"High frequency chest wall oscillation for asthma and chronic obstructive pulmonary disease exacerbations: a randomized sham-controlled clinical trial...

7p toshiba11 20-10-2011 55 4   Download

Độ lệch tần tức thời tỷ lệ trực tiếp với biên độ sóng điều chế • Bộ điều chế FM trực tiếp đơn giản (ứng dụng cao): 3 phương pháp: varactor diode, FM reactance, linear integratedcircuit Varactor diode • Schematic: • Positive alternations⇒ reverse bias⇒ capacitance ⇒ oscillation freq • Negative alternations ⇒ freq • Simple to use, reliable • Stablity of oscillator⇒peak freq deviation is limited small values ⇒low-index applications Varactor diode Carrier rest freq: f c = 1 2π LC (Hz) New frequency: f = 1 (Hz) 2π L(C + ΔC ) Peak freq deviation: Δf = f c − f (Hz) FM reactance modulator • JFET...

7p muaythai2 20-09-2011 72 9   Download

Interference and diffraction of light are arguments for wave charactiristics of light. We know that there are two types of wave processes: transverse & longitutional waves →to what are light waves belong ? Study of polarization of light makes clear that This conclusion is in according to the concept that light waves are electromagnetic waves with a definte band of frequencies. Recall that electromagnetic waves are transervse waves in which e-vectors & m-vectors oscillate in such follwing directions...

20p thanhan 22-07-2009 166 13   Download