Output Definition and 1000 Threads

Say I have a function `func` that does a certain task, returning some expression `exp`. Can I use this expression in another function without having to call `func` again, which I suppose will redo all the steps needed to derive `exp` in the first place? E.g double func() {...

so, assuming that you know all of the aspects of your theoretical generator, apart from the voltage and current, how would you work it out. I know that it is possible, but i can't find anything that I understand, or is even valid online. There should be some equations i can use to work it all...

Homework Statement I am to construct a JFET amplifier with Pspice (SIMetrix) to determine the quiescent output and to compare it with my own calculations. However my calculations don’t match the simulated output by quite a margin. Can anyone point me in the right direction as I’ve had very...

I would like to know, how much a stars life would appear to lengthen relativisticly as observed from earth, if the star was in a close orbit around a supermasive black hole. If the stars lifespan is longer from our perspective than a star of its size should be, would it also appear to be...

Given a sinusoidal voltage source attached to a load, like the following, I want to get both the resistive ## R_o ## and the reactive ## X_o ## components of the output impedance ## R + jX_o ##. Measuring the open circuit voltage will give ##V##. If I connect a test resistance ##R_1## at the...

I run sympy.fourier_transform. from sympy import fourier_transform, exp,symbols from sympy.abc import x, k a=fourier_transform(exp(-x**2), x, k) s=symbols('s') Ori=(s)*exp(-(x**2)/(s**2)) FT=fourier_transform(Ori,x,k) a.subs({k:1}).evalf()...

In Keras, the method model.fit() is used to train the neural network. How can I get the output from any hidden layer during training? Consider following code where neural network is trained to add two time series #multivariate data preparation #multivariate multiple input cnn example from numpy...

My question is kindof related to physics, as I have an Accelerometer sensor through which I am able to get the sensor data as following: x = 192 y = 433 z = -453 I need to convert these values in such a way so that It will share Acceleration in cm or meters, And also what concept I should use...

Homework Statement Given the following circuit: what is the positive and negative peak values of Vo? vi has a frequency of 1kHz, peak of 5V, and is a sine wave. Homework Equations x(t) = Vsin(2(pi)*f*t) KCL, KVL, etc. The Attempt at a Solution [/B] I made Vi to be 5sin(2(pi)1000t) during...

Homework Statement : It takes gravity 1.43 seconds to pull a 3.67 kg cat down from a 10m tall ledge. What is the power output of gravity? [/B] Homework Equations P=mgd/t P=w/t P=power M=mass G=gravity D=distance W=work T=time[/B] The Attempt at a Solution P=(3.67)(9.81)(10)/1.43 P=251.77

Hi there, I would like some help understanding the attached MCNP output file. The file tells me that the mean alpha energy is 7.1931E-04 after a million simulations. I have two questions: Does the file tell me anywhere what the error in the mean value is (+/-)? Or can I simply work this out...

Homework Statement An inventor claims to have developed a device with the following properties: net work output per cycle = 20,000 J heat output per cycle = 50,000 J high temperature = 450 C low temperature = 160 C Calculate the heat input per cycle. Homework Equations ΔETH = W + Q efficiency...

Dear all, I'm within my Ph.D. studies in laser engineering and most of the details are rather new to me. Working on short pulse systems, my advisor told me some times about the relation of the output coupler transmissivity and the outcoupled pulse length, but more as a rule of thumb. According...

Why laser output power decreases with increasing temperature? By increasing temperature, I mean increasing temperature of the active medium. I think that thermal lensing alone should not have effect on output power? Just different focusing (focal length). What happens with energy levels in...

Homework Statement [/B] The proportional control system of figure 3(a) (attachment 235263) has an input, ##\theta_{1}##, of 10 units. The uncontrolled input, ##\theta_{2}##, has a value of 50 units, prior to a step change down to 40 units. The result of this disturbance upon the output...

Hi, Does anyone know of a way I can model the output of a solar still with a specific tilt angle and location (Africa) to give me my desired output value? I've been looking at lots of research papers but the maths is far too confusing for me to even begin to try work it out and I'm hoping there...

As the go-to-guy for first generation 6-cylinder Mustangs, I have an unusual question. With a carburetor type engine, operation at 1000 to 5000 rpm, is a modern electronic ignition truly better than a hot points system? After studying both types it seems newer ignitions make a hotter spark but...

Homework Statement Calculate average power output for a 75 kilogram person walking from ground level up stairs to a final height of 100 feet (then stops) in a time of 3 minutes Homework Equations P= work/ time or P=Fv The Attempt at a Solution I thought this was more of an energy problem...

Homework Statement The power output of an automobile engine is directly proportional to the mass of air that can be forced into the volume of the engine’s cylinders to react chemically with gasoline. Many cars (like a 2008 Mini Cooper S) have a turbocharger, which compresses the air before it...

Dear Sirs, I measuring current with a Rogowski Coil and I want to perform numerical integration on the output. Since the output is fluctuating around ground level, the question is: Should I use the absolute values of the output or not? Thank you.

(mentor note: not really a homework as the OP seeks understanding from an article) 1. Homework Statement I saw this on https://www.electronicshub.org/open-loop-system/, I thought the dry clothes should be the output, and heating the cloth should be the plant/process, I am so confused...

Hi, In a given area there are different types of power plants , let's assume they are (coal, nuclear, wind and solar) Now as I have learned most of these plants (except solar and some others) use synchronous generators as the last step between mechanical energy conversion into electricity. But...

I am performing an experiment where I have built a scale model of a wind turbine, and am measuring the current it can produce with a micro generator. I am using a standard multi meter and the micro generator is DC. I do not know much about the topic, but whenever I start measuring the current...

Note: this is not a homework question! The problem that this program should solve is turn a input like this:(no space and the end of the input string) james shawn charles nicholas into something like this: James Shawn Charles Nicholas But I keep getting an excess line at the bottom of all...

What does input and output signals mean in terms of circuitry. Is it the current, the voltage, resistance? Also people usually show graphs for AC as Sinusoidal waves or sometimes they show square-waves etc. What are these signals referring to, and what does it mean for signals to have wave like...

How can I get around current limiter of this buck-boost converter to achieve a lot higher current output than max rated current output for a very short amount of time ? Does having high continuous current discharge power source at the input help it in any way ? This buck-boost converter offers...

Good afternoon, Not sure if this should be in the homework section or not but in any case... I'm having difficulty understanding the outputs from the Lorentz transform. Example problem. The Earth and sun are 8.3 light-minutes apart. Ignore their relative motion for this problem and assume...

I have acquired an old 1.5kW/2HP VFD [1] with aim to power a drill (which I don't have yet) with a three-phase motor from the single-phase outlet in my garage. It was supposed to be in working order, but alas it was not as the LCD display, for one, is only displaying gibberish (yes, I have...

How can the slightly richer Air fuel ratio produce higher power while the temperature it produces is lesser than slightly leaner(slightly leaner than stoichiometric for best economy)? FYI:I understood that ,at the stoichiometric ratio(precisely slightly leaner due to fast operation of engine)...

Greetings, How do you know what the true output voltage on a Van De Graaff generator is? Can it be measured? If a manufacturer advertises it as having an output voltage of 100,000 Volts, is this an idealistic, classroom quote or the true quote they have actually measured? If the output voltage...

I am trying to write a program that calculates the root of chi-square. I am not getting the correct answer and I honestly am at my wits end trying to figure it out. I know my simp_p() method is returning the correct value, but for some reason my root_chisq() method is not giving me the correct...

Using automotive injectors for a project. I would like to know if the signal to cause injector operation is - 1. PWM 12V, i.e. one off operation 2. Voltage modulation, i.e. the voltage applied controls the output rate. 3. Current modulation 4. Something else. If so what? Tried an automotive...

so say I suspect that there is a positive trend in the data from the scatter plot. Say the output y is continuous. A linear regression would give me a possitive estimate of the slope. For a one unit increase in x, I would get a so and so increase in y. I can also split the data for the y...

Problem statement For an ultrasonic sensor (MB7380) sending 8 data BITS, no parity and one stop bit, what is the ASCII code it will give for a certain distance like 0.15 meters (0.5')? maxbotix.com/documents/HRXL-MaxSonar-WR_Datasheet.pdf#page=2 Attempt at a solution I do not know how to...

Is there some common parameter for DC power supplies that provides the maximum oscillation amplitude allowable at the output? For some context - I would like to generate an oscillating signal powered by a DC power supply, but to prevent most of the oscillations reaching the DC supply I am going...

Homework Statement The input signal of the circuit shown below is ##x(t)=2\sin (ω_ot + \pi/6)##. The switch in the circuit is controlled with a digital signal of the form ##s(t)=\sum_{k=-\infty}^{+\infty} (u(t+ε-kT_s) - u(t-ε-kT_s))##, ##\frac{2\pi}{T_s}=800\pi##, ##ε\to 0##, so that when the...

I'm not understanding this. To my knowledge, in normal function, the amount of blood coming into the heart is equal to the amount of blood going out. Venous return = cardiac output. But how can that be? How can the low pressure venous blood flow match the high pressure arterial blood flow...

Homework Statement Speech at a distance of 45.1 cm has a sound level of 59.3 dB. Assuming that the energy in the sound spreads out equally in all directions from the person's mouth, calculate the total power output from the person. Given: Distance= 0.451m Sound level 59.3 dB P=? J Homework...

I recently re-read an article by Muller (https://arxiv.org/pdf/1606.07975.pdf) about the flow of time, and the possibility of time reversal given sufficient energy dissipation (basically during black hole evaporation, he concludes). Although the paper is on arXiv and not peer reviewed, Muller...

Hi PF! I am integrating the following sin\[Theta][x_, \[Alpha]_] := Sqrt[(2 - 2 x^2)/( 3 - 4 x Cos[\[Alpha]] + Cos[2 \[Alpha]])] cos\[Theta][x_, \[Alpha]_] := Sqrt[(Cot[\[Alpha]] - x Csc[\[Alpha]])/( 1 + 2 x Cot[\[Alpha]] Csc[\[Alpha]] - 2 Csc[\[Alpha]]^2)] \[Rho][x_, \[Alpha]_] :=...

Hello I try to build a brushless Generator. Let me try to explain it. I have a brushless engine. max 6000 Watt 250KV. And I have combustion engine. 3500 Watt by 16k RPM If I connect the combustion engine with the brushless motor and the combustin engine turns with 16k the brushless motor...

If I have a circuit with 3 inputs with k bits, A, B and C, how can I get the output to be 2^k - 1 using relatively standard components? And, or, not, mux, decoder, adder, etc... This is for part of an exercise that I’m doing. I couldn’t find anything in the notes to help. Could anybody give...

Hi. I want to store the output of Roots[LegendreP[3.0, x] == 0, x] as a vector. Can someone help me? Thanks

neutronics and burnup data step duration time power keff flux ave. nu ave. q burnup source (days) (days) (MW) (GWd/MTU) (nts/sec) 0...

Homework Statement Homework EquationsThe Attempt at a Solution Since both D1 and D2 are forward biased for the positive half cycle for the voltage input , current will flow through them . Both the diodes offer very little resistance , but do they act like connecting wires when forward biased...

I am struggling to understand the voltages present in the circuit below. So as stated in the diagram, there is 30V AC at the secondary of the transformer, this is equivalent of 42.4Vpeak. The bridge rectifier changes this to DC and drops the voltage down to roughly 26.3Vpeak DC where each diode...

Hi, I have empirical data from my experiments. There are 2 columns of data (2 interdependent variables- temperature and viscosity).. 1 column (temperature) is input variable (temp. of tested material, once it was melted, it was gradually increased during the experiment). 1 column (viscosity)...

A building needs a certain amount of energy during a year (kWh) for room heating. An air to water heat pump has been installed to provide heat to a radiator system (55/40°C). How do I go about estimating how much of the yearly energy need the heat pump will cover? What confuses me is that the...

Hello All, I work in an optical lab and am currently attempting to determine the voltage output of a subtractor circuit I've wired up (as I'd like to work back from my output voltage and FFT magnitudes to read out the value of a magnetic field using faraday magnetometry.) So my circuit is as...

Homework Statement Homework Equations Find laplace of x(t) and h(t) Multiply the laplaced values to get Y(s) Find inverse laplace to get y(t) The Attempt at a Solution In book the circled term isn't there. Why does that go away? Book gets y(t) as In laplace why does the e5t term go away?