design of ultra low noise amplifiers
Báo cáo hóa học: " Design of a Low-Power VLSI Macrocell for Nonlinear Adaptive Video Noise Reduction" doc
... Professor of elec-tronics at the Engineering Faculty of t heUniversity of Pisa. He is involved in researchactivities in VLSI design for many years. Inparticular, he worked on the design of ... twice lower (B times lower in case of B successive filter applications) than for the second strategy.If the type of noise remains the same over all frames of thevideo sequence, the quality of the ... Publishing Corporation Design of a Low- Power VLSI Macrocell for NonlinearAdaptive Video Noise ReductionSergio S aponaraDepartment of Information Engineering, University of Pisa, Via Caruso,...
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Báo cáo hóa học: "Research Article A Novel Approach to the Design of Oversampling Low-Delay Complex-Modulated Filter Bank Pairs" doc
... applies to low- delay FIRfilter designs [9].In the past, many attempts to design FIR lowpass filterswith low group delay have been made [9–12]. In [13], aprocedure for the design of FIR Nyquist ... the meanvalue of the group delay is restricted to integer multiples of the number of channels.For the first design step we have introduced a novelprocedure for the design of low- delay AFB FIR ... resultingin an oversampling factor of O= 4.5.1. AFB Prototype Filter. First we start with the design of a narrow-band FIR low- pass AFB prototype filter with low group delay designed by using the algorithm...
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Fundamentals of RF Circuit Design With Low Noise Oscillators
... 1043.3.1 Tapped C Design Example 1093.4 Selectivity and Insertion Loss of the Matching Network 1113.5 Dual Gate MOSFET Amplifiers 1153.6 Noise 1173.6.1 Noise Temperature 1253.6.2 Noise Measurement ... aim of this book is to explain the fundamentals of the basic building blocksused in RF circuit design both at the component and intermediate block level. Atblock level this includes low noise ... lasting designs.The book is an extension of the course material provided to delegates onadvanced one-week intensive courses offered to industry by the University of York. These are offered...
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Báo cáo y học: "Ultra-low microcurrent in the management of diabetes mellitus, hypertension and chronic wounds: Report of twelve cases and discussion of mechanism of action"
... reserved Research Paper Ultra- low microcurrent in the management of diabetes mellitus, hyper-tension and chronic wounds: Report of twelve cases and discussion of mechanism of action Bok Y. Lee ... the pathogenesis of both types of diabetes mellitus and cardiovascular diseases including hypertension. The low levels of antioxidants accompanied by raised levels of markers of free radical ... healing. Ultra- low microcurrent presumably has an antioxidant effect, and it was shown to accelerate wound healing. The purpose of the study is to investigate the efficacy of ultra- low microcurrent...
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ultra low-power electronics and design
... devices, had to be chosen. An ultra- low Vthdevice with about 150mV threshold voltage proved to be the best 6TLFeBOOK Chapter 1 ULTRA- LOW- POWER DESIGN: DEVICE AND LOGIC DESIGN APPROACHES Christoph ... to proposals on other levels in the design flow and to future work. Keywords: Low- power design, dynamic power reduction, leakage power reduction, ultra- low- Vth devices, multi-Vdd, multi-Vth, ... variation, since the value of the roll-off is higher than that of the body effect. As an example, the ulv-NFET shows roll-off values of 65mV/10nm and 100mV/15nm and a body effect of only 60mV/V. To...
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Báo cáo sinh học: " Research Article Adaptive Long-Term Coding of LSF Parameters Trajectories for Large-Delay/Very- to Ultra-Low Bit-Rate Speech Coding" pdf
... analysis of the results with the voiced sections.Figure 4 displays the results of the LT coding technique interms of ASD as a function of the bit rate. Each one of the curves on the left of the ... perceptual evaluation of theproposed method.4.4.1. A Typical Example of a TIMIT Sentence. We fi rstillustrate the behavior of the algorithm of Section 3.2 ona given sentence of the corpus. The ... the entropy of thealphabet [1]. We estimated the entropy of the set of {K, P}pairs obtained on the test corpus after termination of the LTcoding algorithm. This was done for the set of configurationscorresponding...
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Báo cáo hóa học: "Research Article Design of a Versatile and Low Cost μVolt Level A to D Conversion System for Use in Medical Instrumentation Applicatio" pdf
... the resolution of theinstrument. The following tests demonstrate that with thebenefit of the time averaging feature inherent in this design, and utilising a conservative gain figure of 20x from ... of the analogue buffer with the resultingfrequency shift of the output of the current-to-frequencyconverter. Readings were taken at intervals from a level of 2 mV, which is approaching the noise ... the effects of high levels of environmental noise and interference need to be neutralised. Under clinicalconditions, the system has been successfully employed ina number of cases where low level...
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Báo cáo khoa học: "Impact of neoadjuvant treatment on total mesorectal excision for ultra-low rectal cancers" doc
... Lim et al.: Impact of neoadjuvant treatme nt on totalmesorectal excision for ultra- low rectal cancers. World Journal of SurgicalOncology 2010 8:23.Lim et al. World Journal of Surgical Oncology ... al. World Journal of Surgical Oncology 2010, 8:23http://www.wjso.com/content/8/1/23Page 6 of 7 thirty-four of them underwent an APR while 46 had asphincter-preserving ultra- low anterior resection ... disease.After our analysis of the results of patients whounderwent APR and low anterior resection with hand-sewn coloanal anastomosis [19], preoperative chemora-diation was offered to those who...
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SAP2000® Linear and Nonlinear Static and Dynamic Analysis and Design of Three-Dimensional Structures
... 1 - 2 Overview of the Program 1 Overview of the Program SAP2000 is a stand-alone finite-element-based structural program for the analysis and design of civil structures. It offers an intuitive, ... in the main menus by the existence of an icon to the left of the command. The lower right corner shows the current unit selection. Figure 2 shows the layout of the interface. Figure 2 The Interface ... each of the bottom chords to select all of the points on each of these frame objects. B. Click anywhere on the area object to select the deck. Items currently selected are indicated in the lower...
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SAP2000 Integrated Finite Elements Analysis and Design of Structures
... Select Mode.24. Click the roof beam at the top of the braced frame to select it. Also click the joint at the top of the chevron brace (center of braced frame roof beam) to select it.25. From ... their particular circumstances. Following is an outline of this tutorial (see the Table of Contents for a more complete outline):A. IntroductionB. Description of Building ModelC. Tutorial Part ... C-10 to enter the last roof beam.The model now appears as shown in Figure C-11.Figure C-11: Model After All Roof Level Beams Have Been Drawn18. Select all of the roof level frame elements and...
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The design of mat foundations
... point of allowing for mat foundations and shallow footings instead of more traditional pile foundations. Without the need for 60- to 80- foot piles, the shallow foundations also allowed construction ... being designed for a small office building with a total live load of 250 kips and dead load of 500 kips. Find: (a) the depth Dffor a fully compensated foundation, (b) the depth Dfif a soft ... 0.25eo = 0.9density (sat) = 119 pcf Example 4. Design the steel lying in the East-West direction of the mat shown below with external dimensions of 42 feet by 74 feet. The columns are all 15”by...
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