What is Specific: Definition and 1000 Discussions

The Sustainable Product Engineering Centre for Innovative Functional Industrial Coatings (SPECIFIC) is an academic and industrial consortium led by Swansea University, with Tata Steel as the main industrial partner. It is funded by EPSRC, Innovate UK and the Welsh Government.The centre is developing the concept 'Buildings as Power Stations' and has been awarded £26 million, comprising £15 million from the EU, with the remaining money coming from EPSRC, Innovate UK, industry partners, and contributions from Swansea and Cardiff universities.
SPECIFIC has developed an 'Active Classroom', designed by architect Joanna Clarke and situated at Swansea University Bay Campus, showcasing innovative technologies for creating low carbon buildings which generate more energy than they consume. The Active Classroom won the Construction Excellence in Wales Award for Innovation in 2017.In 2018 the UK government announced £36 million funding for an Active Building Centre in order to accelerate market adoption of active buildings.

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  1. M

    Specific volumes of a saturated substance due to pressure

    I cannot understand why specific volume of a saturated liquid rises when pressure rises, specific volume of saturated vapor reduces when pressure rises. This made me remember buckingham-pi theorem. Is there any equational approach or formulation that show this? Thank you.
  2. Bunny-chan

    Supremum and infimum of specific sets

    Homework Statement I'm in need of some help to be able to determine the supremum and infimum of the following sets:A = \left\{ {mn\over 1+ m+n} \mid m, n \in \mathbb N \right\}B = \left\{ {mn\over 4m^2+m+n^2} \mid m, n \in \mathbb N \right\}C = \left\{ {m\over \vert m\vert +n} \mid m \in...
  3. P

    Efficiency, Loss....is there a more specific term?

    Suppose I heat a room directly by lighting a fire in the room, let's say it is a butane gas fire and it takes n BTU to raise the temperature by 10°C. Now, suppose I don't like the smell of burning gas fumes and decide instead to move the same gas fire outside and boil water to generate steam...
  4. D

    RC Multiloop Circuits, Find Current at Specific Time

    Homework Statement Homework Equations For a basic RC circuit during charging: q = CV(1-e-t/RC) i = V/R (e-t/RC) The Attempt at a Solution I can solve basic RC circuits but this is just out of my realm of understanding. I can also find the max charge of the capacitor. I'm not looking for...
  5. MathematicalPhysicist

    Deriving Relations for Specific Heats and Susceptibilities of Magnets

    Homework Statement This question is from Birger Bergerson's textbook on Equilibrium Statistical mechanics. Derive the relations C_H-C_M = \frac{T}{\chi_T} \bigg(\frac{\partial M}{\partial T}\bigg)^2_H \chi_T-\chi_S= \frac{T}{C_H} \bigg( \frac{\partial M}{\partial T}\bigg)^2_H...
  6. G

    Algebra problem involving work using specific heat ratio

    NO TEMPLATE BECAUSE SUBMITTED TO NON-HOMEWORK FORUM I'm stuck on substituting the following (where gamma is the specific heat ratio): W=(P1v1 - P2v2) / (gamma-1) P1v1^gamma = P2v2^gamma substituting for v2... <= this is where I get stuck... W = [(P1v1) / (gamma-1)] * [(P2 /...
  7. asseya

    Ratio of specific heats of 52NiO-YSZ and YSZ

    Hi everyone! In a simulation using COMSOL, the ratio of specific heats of both 52NiO-YSZ and YSZ are required as these materials are not included in the software's bibliography. So, I would like to know the ratio of specific heats (gamma) of 52NiO-YSZ and YSZ. Thank you.
  8. A

    Having troubles with searching in specific fashion with bash

    Homework Statement Say I have a textfile that is separated by columns, and I want to search columns 10-15. If there are any matches, then I want to cut out specific parts of all the matches and print it to the user. How do I do this?Homework EquationsThe Attempt at a Solution What I tried was...
  9. jlmccart03

    Total energy within a specific region.

    Homework Statement A cubical region 1.0 m on a side is located between x=0 and x=1 m. The region contains an electric field whose magnitude varies with x but is independent of y and z: E=E0(x/x0), where E0 = 32 kV/m and x0 = 6.0 m . The answer needs to be in μ J. Find the total energy in this...
  10. Maaruk

    I Time Dilation: Hafele-Keating Experiments

    Hi, I went ahead and read through all the similar discussions and none are on this particular topic so I'll go ahead and shoot. I did find this topic as well, but my question is pretty simple. I think I understand how time dilation works, I read through the explanation here, this jives with the...
  11. H

    Solving specific heat problem with two materials

    Homework Statement Imagine I have a 3.5 kg brick at 80 °C that I put in 10l of water at 20 °C. What will the final temperature of the water be? SHC brick = 840 J kg-1 °C -1 Homework Equations E = mc∆θ The Attempt at a Solution First I calculated the energy available from the brick to heat...
  12. srfriggen

    B How to Solve the Equation x = log5(4x + 1)?

    (This is absolutely not a HW problem) I had posted in a much older thread, so just wanted to post again in a new one. How would you solve, for x: 5x = 4x + 1 x = 1 is clearly an answer, but I get struck when trying to solve using logs. If I take log5 of both sides I get, x = log5 ( 4x+ 1)...
  13. T

    Probability of getting specific states -- Quantum Mechanics

    I'm pretty new to quantum, so I'm pretty sure I'm missing something basic here. I've got a 4x4 Hamiltonian with eigenkets $$\psi_{U} = 1/(\sqrt 2) (\psi_{1up} \pm \psi_{2up})$$ and $$\psi_{D} = 1/(\sqrt 2) (\psi_{1down} \pm \psi_{2down})$$ The only difference between the two states is the spin...
  14. heartshapedbox

    Latent heat and specific heat in insulated container

    Homework Statement A 1.0kg of ice at 0◦C, 3.0kg of water at 0◦C, and 5.0kg of iron at temperature T are placed in a sealed and insulated container. cFe =400J/ kg◦C ,cWater=4200J/ kg◦C , cIce= 2000 J/ kg◦C latent heat for ice is 3.3×105 J . The equilibrium temperature is 20◦C.Homework...
  15. peroAlex

    Current density of specific configuration

    Homework Statement Two hollow metal spheres (left one has radius of 0.7 meters and right one has radius of 0.4 meters) are half-submerged in the sea water with specific conductance of γ = 4 S/m. Distance between their centers is much greater than their radii dimensions and equals 60 meters...
  16. I

    How to find a current is this specific circuit

    Homework Statement Find the voltage Vo for this circuit. Given: is = 36 A Link to circuit: https://session.masteringengineering.com/problemAsset/1824621/4/pr_2-32.jpg Homework Equations V = IR Kirchhoff's laws for current and voltage.The Attempt at a Solution I first noticed that the...
  17. F

    I How do we excite specific standing waves on a string?

    Hello, I am aware that there are specific oscillatory patterns than can form on on a string. These patterns are called normal modes and represent standing waves. Each standing wave has an associated frequency f which indicates the speed at which the string's points are moving up and down...
  18. S

    Finding frequency of a specific mechanical oscillator -- horizontal rod on pivot

    Homework Statement There is a cyllinder with radius 0.5 m fixed on the wall. We put a 6 metres long thin rod with mass 0.3 kg on it, which does not slip. I would like to calculate the oscillating time. It is a part of a clock, so the oscillating time is probably 1 or 2 seconds, but I got...
  19. A

    Finding Specific Heat of Unknown Metal

    Homework Statement I'm asked to find the specific heat of Metal X in this simulation: http://group.chem.iastate.edu/Greenbowe/sections/projectfolder/flashfiles/thermochem/heat_metal.html Mass of Metal X = 120 g Temp of Metal X = 220 degrees Mass of Water = 30 g Initial Temp of Water = 20...
  20. Q

    I Analysis of a general function with a specific argument

    Hello everybody, I'm currently helping a friend on an assignment of his, but we are both stumbled on this exercise, I'm posting it here We define a function ##f## which goes from ##\mathbb{R}## to ##\mathbb{R}## such that its argument maps as $$ x \mapsto...
  21. Noisy Rhysling

    Help with a new term for gender specific telepathy please

    I want to build a world where men can read women's minds, but not other men, and vice-versa. I need to have them show the gender of the person doing the telepathy. Any suggestions? I have considered just having two words that show this, but I'm not really happy with that, which means it doesn't...
  22. A

    Find an appropriate matrix according to specific conditions

    I am facing some difficulties solving one of the questions we had in our previous exam. I am sorry for the bad translation , I hope this is clear. In each section, find all approppriate matrices 2x2 (if exists) , which implementing the given conditions: is an eigenvector of A with eigenvalue...
  23. mkematt96

    Voltage across an Inducter at a specific time in a DC circuit

    Homework Statement Homework Equations I(t) = E/R [ 1 - e^-t/tau)] Vseries = Sum of voltages , Vparalel= V1=V2=V3... V=I*R The Attempt at a Solution
  24. C

    Specific heat ratio of gas mixture

    I am doing some multi-fluid hydrodynamic modelling and I have a quick question. I think I know the answer, but I am not convinced. One of the things that I need to know is the specific heat ratio, ##\gamma##, for the gas and my question is, how does one calculate this from the values of each...
  25. T

    I Function as a Solution to Specific Conditions

    I'm trying to solve some statistical mechanics. This problem appeared. ##\frac{f\left(0\right)}{f\left(a\right)}f\left(x+a\right)=f\left(x\right)## Any idea as to which function will satisfy this equation?
  26. wheels94

    Projectile Motion - vertical displacement at specific time.

    Homework Statement A kicker wishes to kick a field goal, so he sets the ball on the ground 30 yards (27m) from the goal. Assuming he kicks the ball at an angle of 45 degrees and a speed of 27m/s, what is the height of the ball above the ground when it goes over the crossbar. Known: R = 27m Vo...
  27. R

    Stuck finding a specific value of an inverse of a complex matrix

    Homework Statement Consider the following matrix. A = 2 + 4i...1 + 5i 2 − 3i...2 + 3i Let B = A-1. Find b12 (i.e., find the entry in row 1, column 2 of A−1) Homework Equations A-1 = 1/(ad - cb)* [ d -b ] [ -c a ] <--imagine as 2x2 matrix with first row (d,-b) and second row...
  28. VegemiteJuice

    Determining the specific heat capacity of water

    Homework Statement Hi, I have an assignment to determine the specific heat capacity of water using a calorimeter, voltmeter and ammeter, where we connected the calorimeter to a 10V power pack and measured the temp of the water and the readings on the voltmeter and ammeter every minute. I ended...
  29. J

    How Does the Heat Transfer Rate Affect a Beaker of Liquid Nitrogen?

    Homework Statement The mass of liquid nitrogen in an open beaker is found to have decreased by 46.3 g in 10 minutes. If the s.l.h of vaporisation of nitrogen at its boiling point is 1.99 x 105, at what rate were the surroundings heating the beaker? Why is the heat capacity of the beaker...
  30. M

    I Beam in specific photon number state?

    Can a beam of light be objectively in a specific photon number state (Fock state), let's say ##|2\rangle##? Or is it (the specification of the state) detector/observer dependent? I.e. we can only say that a beam of light is in a Fock state, but which exactly is detector dependent (detection time...
  31. I

    Question about the specific effects of SSRIs

    I know that SSRIs inhibit the reuptake of serotonin from synapses, and therefore cause the receptors on the postsynaptic neuron to be activated for a longer period of time. Does this have any effect on the signal sent? (for example, does it make it so the signal takes longer to process?, etc)
  32. B

    Engineering Self-teaching for a specific application

    I am a computer science undergrad (almost done, so I can't switch to engineering sadly) and I was wondering if someone from the physics/engineering community could advise me on this. I know it sounds crazy but my question is: Is it possible/reasonable to teach oneself the physics, aeronautical...
  33. I

    Constant pressure specific heats when temperature changes

    Homework Statement Im trying to understand what would be the correct approach for calculating the constant pressure specific heat for an ideal gas undergoing a process where the temperature is changing. The reason I am asking is because the equation used to calculate Cp0 is dependent on the...
  34. G

    Boiler volume for specific steam turbine?

    New here, hope someone can help. I'm experimenting with a heat source for a steam turbine. I have the specs for the turbine and the necessary conditions for operation, but at this point in my design I need to figure out the volume of the actual boiler/reservoir. A direct answer or the right...
  35. G

    How does this specific Van de Graaff generator work?

    Hi. I have access to following Leybold Van de Graaff generator: The instructions and data sheet can be found here, but they don't give much insight. I have found different working principles of VdG generators. Some need the rising and falling sides of the belt to be closely together from top...
  36. doggonemess

    Wanted: specific youtube science series, forgot who made it....

    This is a desperate attempt to find a set of videos I saw about a year ago on YouTube. It was not one of the big, well known guys like Veritasium or SciShow, it was just one middle aged guy. He explained scientific advancements through history, and gave really, really detailed accounts of how...
  37. B

    Please prove that dW=-vdP where v is specific volume

    Homework Statement I came across this equation denoting the work done by an open system (e.g. turbine or compressor). I wonder how they arrived at such an equation. Homework Equations Differential form of the steady flow energy equation for an infinitesimally small control volume neglecting...
  38. caters

    Writing: Input Wanted How to Get Heart Specific EKG for My Kepler Bb Humanoids

    My Kepler Bb humanoids have 2 hearts and circulatory systems. If the 2 hearts are out of sync, there is definitely a problem. But I was thinking that a normal heart rate for them might be somewhere in the 40-80 BPM range. But how could they get heart specific EKGs is what I am really wondering...
  39. Titan97

    Specific heat for a triatomic gas

    Homework Statement Using equipartition law, find specific heat of gas containing triatomic linear molecules. Will the result be different if the molecule was non- linear? In what way? Homework Equations According to equipartion theorem, each degree of freedom gets (1/2)kT kinetic energy and...
  40. Titan97

    Einstein's theory for specific heat

    I have uploaded a page from my prof's lecture on specific heat. Its given that average energy for each vibrational mode is $$\frac{h\nu}{e^{\frac{h\nu}{T}}-1}$$ Hence $$U=(\text{number of vibrational modes)}\times\frac{h\nu}{e^{\frac{h\nu}{T}}-1}$$ In the lecture slide, the number of...
  41. wronski11

    Specific and surface activity of nuclear waste

    Dear all, I am looking for more information how specific activity \frac{Bq}{g} and surface activity \frac{Bq}{cm^2} is measured. This is done to determine whether the materials of interest can be treated as harmless and disposed as usual waste. I am interested how the experimental procedure...
  42. E

    Temperature Coefficient of Resistance and Specific Heat

    I am trying to estimate the amount of electrical power needed to heat up a material from 20C to 1000C in 20 seconds. Assuming it is 18sqin and 3mm thick, I used the specific heat which was given as 0.78 J/gC and weight 11.39g (from the destiny of 3.26). 0.78 J/gC x 11.39g x (1000C - 20C) /...
  43. M

    Dimensional Analysis of Specific Speed: Explained

    Hi Specific Speed is defined as: Ns=N(Q^0.5)/(H^.75) How Dimensional Analysis of it can be done? Unit of N is 1/sec and Ns is unitless. Then Dimension of Q^0.5 must be equal to dimension of H^0.75. It seems no to be equal. Please explain it.
  44. J

    Specific heat capacity and concentration

    Hello. I am doing a research paper on the relationship of specific heat capacity and refractive index of liquids. I am doing this by finding the relationship between specific heat capacity and concentration and refractive index and concentration. With this I can find a general trend and conclude...
  45. L

    Python Finding specific points in data array

    I have this really noisy data and I'm wanting to plot Temperature v. Time. I used this function to calculate a moving average. Here's some sample code. BA1='ANP-Heat-BA1.csv' #Time Trial 1 time1=pd.read_csv(BA1,skiprows=0) time1=time1['Time(s)'] #Temperature tmp1=pd.read_csv(BA1,skiprows=0)...
  46. G

    I Distribution function for specific 1D problem

    Hello! Maybe someone will be able to suggest something about the following quite simple problem: 1D problem on axis "X". Particle moves only along "X" axis and starts its motion from X=0. However, when "X<0" particle disappears. Particle is influenced by some kind of force in such way that we...
  47. timelesstrix0

    Specific heat capacity of a mixture

    so for one of my assignments i need to make a calculation which involves the mixture to be made of different types of substance... the heat capacity for each of the different unknown substances that were given: substance 1 = 1250J/kg °C substance 2 = 1130J/kg °C substance 3= 4100J/kg °C i need...
  48. avito009

    Is angular momentum position specific?

    Do we find out angular momentum for an object from a specific position? Since L= r x mv. R is the distance from the centre of mass. So can I say that angular momentum is 12 for a fixed position 4 metres away from centre of mass having mass of 1 kg and velocity of 3 metres per second north?
  49. D

    Specific heat help -- cooling down a metal bar

    I'm a design draftsman, I have bar of 17-4 stainless steel it weighs 6.9 lbs. The Product Data Sheet shows a specific heat 0.11 (BTU/lb/F (32-212F) (www.aksteel.com) It's at room temperature or 70 degrees F. I want to cool the bar to 50 degrees F. The surface area of the bar is 245 sq. inches...
  50. T

    Understanding operation of specific SMPS example (is it a flyback?)

    I don't have much spear time at the moment, but I came across a SMPS diagram in this thread: https://www.physicsforums.com/threads/quick-question-about-inverter-tx-order-wrt-mains.870309/ And I was trying to figure it out, and I don't want to forget about it before I do. So I was wondering if...
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