This document discusses electromagnetic waves and interference patterns of light. It introduces Maxwell's equations, which describe electromagnetic wave behavior. It also covers topics like reflection, refraction, thin film interference, and the Michelson interferometer. The key goals are to study interference from multiple coherent light sources and to determine intensity patterns from interference effects.
Introduction to modern methods and tools for biologically plausible modeling ...SSA KPI
AACIMP 2010 Summer School lecture by Ruben Tikidji-Hamburyan. "Physics, Chemistry and Living Systems" stream. "Introduction to Modern Methods and Tools for Biologically Plausible Modeling of Neurons and Neural Networks" course. Part 2.
More info at http://summerschool.ssa.org.ua
Introduction to modern methods and tools for biologically plausible modeling ...SSA KPI
AACIMP 2010 Summer School lecture by Ruben Tikidji-Hamburyan. "Physics, Chemistry and Living Systems" stream. "Introduction to Modern Methods and Tools for Biologically Plausible Modeling of Neurons and Neural Networks" course. Part 2.
More info at http://summerschool.ssa.org.ua
George Green's Contribution to MRI, Roger Bowley, 21 October 2014uazkjs
Slides to accompany the lunchtime talk given by Professor Roger Bowley of the School of Physics and Astronomy, The University of Nottingham, at the Djanogly Theatre, Nottingham Lakeside Arts, on Tuesday 21 October 2014.
3.1 Discovery of the X Ray and the Electron
3.2 Determination of Electron Charge
3.3 Line Spectra
3.4 Quantization
3.5 Blackbody Radiation
3.6 Photoelectric Effect
3.7 X-Ray Production
3.8 Compton Effect
3.9 Pair Production and Annihilation
Chiral Transverse Electromagnetic Waves with E H i to study Circular Dichroisminventionjournals
It is shown that a general class of transverse electromagnetic waves with E H i can be obtained. These waves possess magnetic helicity and chirality. This condition is important to excitation of nano molecules when it is necessary consider a global factor as the product of the parameter of optical chirality with the inherent enantiometric properties of the material. The absorption of a chiral molecule in a chiral electromagnetic field is proportional to the imaginary part of mixed electric-magnetic dipole polarizability of the molecules, which determines the circular dichroism, CD of molecules. Chiral fields with different handedness can be used to obtain basic information from the interaction fields-molecules with high optical chirality, having chiral hot spots in nodes of stationary waves with parallel components of electric and magnetic fields.
This is an introduction to modern quantum mechanics – albeit for those already familiar with vector calculus and modern physics – based on my personal understanding of the subject that emphasizes the concepts from first principles. Nothing of this is new or even developed first hand but the content (or maybe its clarity) is original in the fact that it displays an abridged yet concise and straightforward mathematical development that provides for a solid foundation in the tools and techniques to better understand and have a good appreciation for the physics involved in quantum theory and in an atom!
The atom is a basic unit of matter that consists of a dense central nucleus surrounded by a cloud of negatively charged electrons. The atomic nucleus contains a mix of positively charged protons and electrically neutral neutrons (except in the case of hydrogen-1, which is the only stable nuclide with no neutrons).
UCSD NANO 266 Quantum Mechanical Modelling of Materials and Nanostructures is a graduate class that provides students with a highly practical introduction to the application of first principles quantum mechanical simulations to model, understand and predict the properties of materials and nano-structures. The syllabus includes: a brief introduction to quantum mechanics and the Hartree-Fock and density functional theory (DFT) formulations; practical simulation considerations such as convergence, selection of the appropriate functional and parameters; interpretation of the results from simulations, including the limits of accuracy of each method. Several lab sessions provide students with hands-on experience in the conduct of simulations. A key aspect of the course is in the use of programming to facilitate calculations and analysis.
Describes the general solutions of Electromagnetic Maxwell Equations.
Intended or Graduate Students in Science (math, physics, engineering) with previous knowledge in electromagnetics.
Please send me comments and suggestions for improvements to solo.hermelin@gmail.com.
More presentations can be found in my website at http://www.solohermelin.com.
Neuro-symbolic is not enough, we need neuro-*semantic*Frank van Harmelen
Neuro-symbolic (NeSy) AI is on the rise. However, simply machine learning on just any symbolic structure is not sufficient to really harvest the gains of NeSy. These will only be gained when the symbolic structures have an actual semantics. I give an operational definition of semantics as “predictable inference”.
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Let me take this questions and provide you a short journey through existing deployment models and use cases for AI software. On practical examples, we discuss what cloud/on-premise strategy we may need for applying it to our own infrastructure to get it to work from an enterprise perspective. I want to give an overview about infrastructure requirements and technologies, what could be beneficial or limiting your AI use cases in an enterprise environment. An interactive Demo will give you some insides, what approaches I got already working for real.
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Create a campaign using Mailchimp with merge tags/fields
Send an interactive Slack channel message (using buttons)
Have the message received by managers and peers along with a test email for review
But there’s more:
In a second workflow supporting the same use case, you’ll see:
Your campaign sent to target colleagues for approval
If the “Approve” button is clicked, a Jira/Zendesk ticket is created for the marketing design team
But—if the “Reject” button is pushed, colleagues will be alerted via Slack message
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The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
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After immersing yourself in the blue book and its red counterpart, attending DDD-focused conferences, and applying tactical patterns, you're left with a crucial question: How do I ensure my design is effective? Tactical patterns within Domain-Driven Design (DDD) serve as guiding principles for creating clear and manageable domain models. However, achieving success with these patterns requires additional guidance. Interestingly, we've observed that a set of constraints initially designed for training purposes remarkably aligns with effective pattern implementation, offering a more ‘mechanical’ approach. Let's explore together how Object Calisthenics can elevate the design of your tactical DDD patterns, offering concrete help for those venturing into DDD for the first time!
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
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Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
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aside, this is often a favorite portion of (29.r8)
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sources there, seen that. A t-hin-film
. soap bubble: why should that
To study two-source interference of light create a rainbow effbct?
" To determine intensity in interference " This thin filrn is dispersing
patterns white light and revealine i
r.o.y.g. b.i.v. spectrum oicolor.
. To consider interference ill thin
films
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discussion of interference from
.lust such a scenario, a coherent a.- *tt
source and the waves from it that
can add (constructively or.
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(a) llrlcrlerfD.. hctvcfil r0y n.'lr.rr,l 1n,!r if(
r$ o !r' x.ci,t x thir llhl l. A lascr bc:ln (I = {i32,ll nrn) is in(:i(l(:nt ()n tw() slill
l',,, fr,r.111,,,,,'r|.,i.t,,r i, 1 ., i 1).2()0 rrrrrr apart. I lorv far apirrt arc thr bright intcrfer-
. )r ,1., . ',: 1f- JrlIr i L, r.., tr,r ''lrr'r r'. !l crrr:e fringcs on a screcn 5.00 rn asal tiorn thc slits?
/ ,'rl t, r'!r:I ... ,t.rl. fr.
'3.1 lxrr rarlio rrrrcnr)as trcpiratcd l)1 3()() n as slrorvn in
t'igirrrr l'37.3 sintultancorrslr br oadcast idcirical signal!
at ih(: if,rnc $au:lcngtl) A rndi0 ir) r (rl trir(.li'tg (luc
(b) lhc nifhd{ lriil!c, ol xr oil li(k oil srrcr north rcccilca thc signalr. (r) Il drc caf i! nr rhc posi"
tion ol thr: sccond nruiorrrm, r,hlrt is thr: r,rrclcngrh ol
thc signalsi (b) I lor mnch fartbcr nrusr rhc car rnrrcl
lo cn(o(ultcr thc ncxt rninimunr in rcccptio0? (.'olr' l)o
not usc thc small,lnglc approximation in thi. problcn).)
3u,n
i.it'oungs d{)ublc-stil cxfcimcnr is pcr{brmecl wirh
58$nm light an(l a sliLrGcrcen disbnce ol 2.00 m. lhe
lcntll iDtcrfcrcncc ninimum is obsctlcd 7.26 mnr front
thc ccDtrnl tr)axirnum. I)crenlinc thc spacing of dtc alib
7. ('lltls J()
. Fresnel and Fraunhofer diffraction
Chapter 36 . Single-slit diffraction
. Diffiaction gratings
I)iIll'lrrtiorr
PORs'tr:i.' 9:.i,-.:i--
Unl!'er-cig, Pitlsirs. Ilreliii €rJarorr
- i/rrs.r lt l.,u,ri ..! R,,., .t t..(,,11tt,t
lcrlr,* l,r .l'rxr' l'rlun
c.r*. Fr b'!i r&ji6 lR. FNnhiis i lrFoi l,Uion_6!.
I lt l rorlucl iorr Ij l'es rttl a nrl Ii'ra u n h o Icr ll i,{l'ra r:i ion
, It's intuitive that sound can diffract According to geometric optics, a light source shining on an object
(and travel around corners). Light
in front of a screen will cast a sharp shadow. Surprisingly, this
doesn't "shor.v its poker hand" so
does not occur.
easily.
(lconrclfic optics l)rcdicts that rhis sjtuation
. Ifyou shine light fronr a point shtrtrkl frrllrtr: il i){rp bonndtrrv hets$)t
source to a ruler and look at the illurrination antl
shado,uv, you'11 see the edges are ... solid sltarl,
'rv i DOCST{'T
',veli ... not sharp. A close 'Ihat s NO'I $,hat HAPPTI'I
inspection ofthe indistinct edge rcrrlly hrpp.rrr!
rvill reveal fringes.
. This phenomenon may not sound
Point
source
useful yet but stay r.vith us until the
end ofChapter 36. This line of
thinking has shorvn the way fbr
advances in DVD technology and
applications in holographl,. Straighledge
rbPflghr r ld)[itr.on ltrtrn{ lr I 4^nph,
' )m | !Ja,.r |,ii,.rr i tr. rurtnhrs.! I,uFr- drr n.ct
l)if'filr'1inn l)il'fi'aeliorr l'rorn a sirrglc slil
Ifthe source and the screen are close to the edge causing the diffraction. the
effect is called "near-field" or Fresnel diflraction. Ifthese objects are far
o) wAri€atrY f,aPPlnr:
apart, so as to allow parallel-ray rnodeling. the diffraction is called ..far-
lffi' m
field diffraction" or Fraunhofer diffraction.
Fffi PxiilkLnry .r)n(1v('mric
li8hl
.opnrnr. nrihrcon lilLrNrr'i Inc rahtniii! n p$rrn dd;on.!td
8. lrt
/rllr'h ll ltlll(' ilt ilt:llr.ili{ rlrll,.r, r,,,11
I"l csrrcl ol' li'l-aunholt'1.':'
' The figure illustrates Fresnel and Frarrnholer oritconles
.
J,r !{r. {a), x. r L ,n trr, lfr. Differentiating Fresnel and Fraunhofer
ll, l
',' 'll *ril l
I ll
""''trl*:t
' .i .,fI.--- - _----
-:::=_lr
:-
I
i.rr! !
rholc riir. r,r /, relrt,.{,nlr;i rtrrl liir!r
i.l l..,ihrilitrr ftrLlr nrfiriili.i (d) lfr.'rrrs I r.(,nh..f.r rhtr.,: rr .n
(b) Enlargcd vicrv ot lhc h)p lrrlf ol thc srrr
. rr " , .,r,rll .r, ,...j| Lr.- rrlr
'
. , r rl: .,,. .,,r t1 t,,,, a
" i r.t tj
r! ., !r": . 1 ,r, .t.,!1. t.j.(' i.
(nrrsr . pr Rr^F r ar:{ir rr. n$tnhh! n tdroi etr,n ELr
I"l'ir rr n hol'c r rf i f'li.;tt't ic,r ra
F rr n lrol'cl. tli l'li.aciion
divide source into two eqLlal oa(s
f,r,,o=f destructive interference
il,*, bFqi
: ll . - i divide source into four equal parts
j.si.n, 0
-l
: !
r'lf"
Inconring
Vl.''u=?ll
l.l
I ano so on
v
(nnn8hr.z$eP.r^inFduc,ri6ts. .ruh[.r ier!t,o^oi djn,i !r il
Iil'lr u rr lrof'c r. rli l'l'r.ir,-.1 itrr I;r'aunhof'cr rlilli-acliolr rrnrl arr cxalnplc of analvsis
. A photograph ofa Fraunhofer pattern from a single slit.
|]
li
II 4
ll sn9 ' 211,,
. i r< r3
" n!2. sin0 - A/ a
,'A ,2
I 4 sirrd= o
" a/2.
sin9 - -7/ t
a. /
ll' ,i'', snr9 = -27/ t
-_ ll 'i
U-
k-- /i- /r0nt
I sin0=aI n-11,12,13,
l---.--' I .ru,iirdiu" I
conclition ror
lintgrlgl*l9q _ *J
lottrghrt 2rr[lc,Fonr:a'cirirtx.nhtrh;!iit,E^r [fn,n.trsts
16 i8h r' lm3 h'Bon lin,cir im I nc _ puilnfrin8 ,! lcrG.n ddr6_ b L!