Jorcy de Oliveira Neto

11 Questions 25 Answers 0 Followers

Questions related from Jorcy de Oliveira Neto

Is it actually possible to reach orbit (starting with a LEO for simplicity) using an air breathing engine ? How high could that orbit be ?

Since most of the theoretical and conceptual designs of Single Stage to Orbit (SSTO) aircraft are depicted through Scramjet-based vehicles (such as the X-30 concept from the National Aerospace...

14 June 2016 1,426 3 View

How optimized is the Oracle JVM regarding processor/architecture specific features ?

I'm looking for a better understanding on how good/ill optimized is the native Oracle JVM regarding the usage of processor/architecture specific features (eg: Cache layout, SIMD instructions, OOO...

01 December 2015 4,350 1 View

How can one avoid a Wireless Battery Recharger accidentally acting as an Induction Heater?

Of course one could implement current limiters within the source induction coils inverters and/or current drivers and also matching the impedances between the power source and reciever coils,...

16 November 2015 9,047 2 View

Which are the most commonly used TCP Enhancement techniques for links over long latency channels?

Both IETF RFC2488 (Enhancing TCP Over Satellite Channels) and RFC3135 (Performance Enhancing Proxies Intended to Mitigate Link-RelatedDegradations) provides some reccomendation/advice on usage of...

08 October 2015 7,161 4 View

Does anyone know where to find the original Advanced Vector Extensions (AVX) Programming Reference documentation ?

The original version of the Intel Advanced Vector Extensions Programming Reference. from March 2008 as Document no. 319433-002. is quite often referenced in some HPC papers which were early...

11 August 2015 858 4 View

How one could determine the Rolloff Factor for a given modulation type?

Would it be there a standard procedure and/or thumb rule for determining the rolloff factor of a modulated signal filter depending on a given type of modulation ? For example, the DVB-S2...

25 July 2015 7,069 3 View

Is a stacked autoencoder based deep learning network suitable for financial time series forecasting ?

Deep Learning networks (such as SdA) have been shown very suitable for many Pattern Recognition applications, however it is said that Autoencoders can't generalize well over noisy data like in...

24 July 2015 1,601 3 View

What is the purpose of having a Real-Time process priority in MS Windows ?

As far as I know it is highly unreccomended to set a proccess priority on MS Windows as Real-TIme, however on which cases it would be reccomended ?

21 July 2015 1,893 5 View

Is it there any reference on how to implement fast transcendental functions on 8/16-bit microcontrollers ?

Of course, there is CORDIC for sin() and cos(), and one could also use precomputed lookup tables for single variable functions like exp() and log(). However, common bivariate functions as pow(a,b)...

21 July 2015 4,392 4 View

Does anyone knows how to performe a full ARFIMA-GARCH bootstrap forecast using the Rugarch package in R?

It has been hard to find an example of a bootstrapped forecast, using the ugarchboot() function in the Rugarch package for a full ARFIMA/ARFIMA-GARCH model. i.e: The model which has a Fractional...

16 July 2015 6,027 4 View

Is it there any reference on how the AVX-512 instruction set will be implemented on Intel Skylake microarchitecture ?

The implementation of the IMCI ISA on Intel's Xeon Phi microarchitecture relies on a dedicated VPU, which in turn is very different on how the Execution Engines for SSE/AVX are implemented on...

16 July 2015 6,510 11 View