W7-X
Overview of W7-X ECRH Results
... W7-X operation does not necessitate toroidal plasma current for operation. Therefore it is not equipped with any tool for inductive plasma current generation. The toroidal plasma current origins only from ...
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Studies towards an upgraded 1.5 MW gyrotron for W7-X
... increase of the accelerating voltage applied by the power supplies. During the voltage increase in the simulation, the electron velocity ratio is changing adiabatically and the beam current obeys the Schottky formula. A ...
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Remote-Steering Antennas for 140 GHz Electron Cyclotron Heating of the Stellarator W7-X
... The ECRH system at the stellarator Wendelstein 7-X (W7-X) has 10 MW of continuous power at 140 GHz [1]. The beams from the 10 gyrotrons are transmitted via 2 quasi-optical multi-beam transmission ...
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Assessment of ECH stray radiation levels at the W7-X Michelson Interferometer and Profile Reflectometer
... at the input of the Michelson, will not exceed 10 mW in the specific W7-X configuration. A notch at 40 dB brings the signal in the same order of magnitude as the overall expected ECE power. Expected stray ...
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Ray Tracing Simulations of ECR Heating and ECE Diagnostic at W7-X Stellarator
... This report shows the progress achieved in simulations of thermal and non-thermal e ff ects which may appear for high power ECRH in the W7-X stellarator (under construction in Greifswald, Germany). ...
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ECCD operations in the second experimental campaign at W7-X
... A preliminary Fourier analysis of ECE signal displays growing oscillations before a crash, whose frequency is between 1 and 10 KHz, while Mirnov coil signals show a strong activity after the crash, which may indicate ...
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Reduced field Scenario with X3 heating in W7-X
... in W7-X was considered for di ff erent goals already; see, for example, the references [3] and [9] (in the last, X3 at 140 GHz launched near the minimum of B in high-mirror configuration was investi- gated ...
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ECRH and ECCD scenarios for W7-X
... expected (if the mode-purity is su ffi ciently high). In optically thick plasmas, the location and width of the deposition profile for the RF-beam are defined predominantly by the magnetic configuration and are not very ...
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From Wendelstein 7-X to a Stellarator Reactor
... While W7-AS still showed pressure driven modes, the W7-X design should include sufficient magnetic well to provide stability up to <β> = 5 %, at least for the standard and high mirror ...in ...
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Advanced electron cyclotron heating and current drive experiments on the stellarator Wendelstein 7-X
... The gyrotrons were developed within the PMW-project (“Projekt Mikrowellenheizung für W7-X”) at KIT and have a nominal power of 1 MW at 140 GHz [4]. Nine gyrotrons were built by THALES in France and another ...
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Properties of the function f(x)=x/π(x)
... Abstract. We obtain the asymptotic estimations for n k=2 f (k) and n k=2 1/f (k), where f (k) = k/π (k), k ≥ 2. We study the expression 2f (x + y) − f (x) − f (y) for integers x, y ≥ 2 and as an ...
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The European credit information landscape. An analysis of a survey of credit bureaus in Europe. ECRI Research Report, January 2011
... Overview of the main access channels to credit bureau data for clients x x x x x x x x x x x x x x x 19 13 12 11 10 Source: Association of Consumer Credit Information Suppliers, ACCIS su[r] ...
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On the Composition of Distributions x−sln|x| and |x|μ
... In the following, we let Ᏸ be the space of infinitely differentiable functions with compact support, let Ᏸa,b be the space of infinitely differentiable functions with support contained in [r] ...
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Devices HER HDSP- Green HDSP- Yellow HDSP- Description 521E 521G 521Y Common Anode Right Hand Decimal 523E 523G 523Y Common Cathode Right Hand Decimal
... Part Numbering System 5082 -X X X X-X X X X X HDSP-X X X X-X X X X X Mechanical Options[1] 00: No Mechanical Option Color Bin Options[1,2] 0: No Color Bin Limitation Maximum Intensity Bi[r] ...
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A study to evaluate the effectiveness of video teaching programme on knowledge regarding learning disabilities of school children among primary school teachers in a selected school at Elayampalayam, Namakkal district.
... x x x x x x x x x x x x x learning disabilities Importance of school health Definition of learning disabilities Incidence of learning disabilities Causes of learning disabilities Types o[r] ...
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Continuity of the maps f↦∪x∈Iω(x,f) and f↦{ω(x,f):x∈I}
... consider the set { x ∈ M : for any relative neighborhood U of x in M we have orb U = M } . This closed set M is invariant, and we refer to M as a basic set of f , provided that it is infinite. A fundamental ...
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The raw materials initiative — meeting our critical needs for growth and jobs in Europe. Communication from the Commission to the Council and the European Parliament. COM (2008) 699 final, 4 November 2008
... X X X X X X X X X X X X Monitor progress by issuing yearly progress reports on the implementation of the trade aspects, drawing, as appropriate, on inputs from stakeholders Promote the s[r] ...
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A quasi experimental study to assess the effectiveness of structured teaching programme on knowledge regarding post natal care among primi mothers in kannivadi block phc at Dindigul district
... SCHEMATIC PRESENTATION OF DATA Population Background Factors x x x x x x x x x Age Gestationalweeks Education of mother Education of spouse Ocupation Type of family Breadwinner of family[r] ...
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Choices that students make between different post-18 routes and whether these choices are effective and reliably informed : review of relevant literature and evidence. Final Report, May 2019
... Figure 1: Factors shaping individuals’ choices and behaviours towards participation in education and learning p p g x x x x x x x x x x Monetary resources direct and indirect costs; real[r] ...
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On W7- Curvature Tensor of Generalized Sasakian-Space-Forms
... 2n f S(Y; Z)g(X; U) g(Y; Z )S (X; U ) g where R and S denote the Riemannian curvature tensor of type (0; 4) de…ned by `R(X; Y; Z; U ) = g(R(X; Y )Z; U ) and the Ricci tensor of type (0; 2) ...
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