Search Results - "Junghanns, P."

Completion of the production of the W7-X divertor target modules by Boscary, J., Ehrke, G., Greuner, H., Junghanns, P., Li, C., Mendelevitch, B., Springer, J., Stadler, R.

“…The installation of an actively water cooled divertor in the stellarator Wendelstein 7-X (W-7X) is mandatory to achieve stationary power and particle exhaust…”
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Repair processes of Wendelstein 7-X target modules by Junghanns, P., Boscary, J., Ehrke, G., Mendelevitch, B., Pichlmair, A., Springer, J., Stadler, R.

“…The highly loaded surface of the actively water-cooled divertor of Wendelstein 7-X (W7-X) is made of 100 individual target modules. In each target module, a…”
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Local copper coating of the connectors of the divertor target elements of Wendelstein 7-X by Junghanns, P., Boscary, J., Busch, M., Mendelevitch, B., Stadler, R.

“…•Technology for the water connectors of the divertor target elements of Wendelstein 7-X: CuCrZr with a Ni (270) transition to stainless steel 316L (OD: 12mm,…”
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Progress in the production of the W7-X divertor target modules by Boscary, J., Ehrke, G., Greuner, H., Junghanns, P., Li, C., Mendelevitch, B., Springer, J., Stadler, R.

“…The realization of the 19.6 m² highly heat loaded target area of the actively water-cooled divertor of Wendelstein 7-X (W7-X) requires the installation of 100…”
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Experience gained with the 3D machining of the W7-X HHF divertor target elements by Junghanns, P., Boscary, J., Peacock, A.

“…•The Wendelstein 7-X surface of the actively cooled divertor is built up of 890 individually 3D machined target elements.•To date 300 target elements have been…”
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Fixed point iterations for a class of nonstandard Sturm–Liouville boundary value problems by Junghanns, P., Themistoclakis, W., Vecchio, A.

“…The paper examines a particular class of nonlinear integro-differential equations consisting of a Sturm–Liouville boundary value problem on the half-line,…”
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Summary of the production of the divertor target elements of Wendelstein 7-X by Boscary, J., Friedrich, T., Greuner, H., Schulmeyer, W., Stadler, R., Mendelevitch, B., Junghanns, P., Ehrke, G.

“…•Completion of the target element production for the water-cooled divertor of Wendelstein 7-X.•Technology: CFC NB31 bi-layer tiles electron beam welded onto…”
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Progress in the development of industrial scale tungsten fibre-reinforced composite materials by Riesch, J., von Müller, A., Mao, Y., Coenen, J.W., Böswirth, B., Elgeti, S., Fuhr, M., Greuner, H., Höschen, T., Hunger, K., Junghanns, P., Lau, A., Roccella, S., Vanlitsenburgh, L., You, J.-H., Linsmeier, Ch, Neu, R.

“…Currently, tungsten fibre-reinforced (Wf) composites are regarded as promising materials for plasma-facing components of future magnetic confinement fusion…”
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Tungsten based divertor development for Wendelstein 7-X by Fellinger, Joris, Richou, M., Ehrke, G., Endler, M., Kunkel, F., Naujoks, D., Kremeyer, Th, Menzel-Barbara, A., Sieber, Th, Lobsien, J-F., Neu, R., Tretter, J., Wang, Z., You, J-H., Greuner, H., Hunger, K., Junghanns, P., Schneider, O., Wirtz, M., Loewenhoff, Th, Houben, A., Litnovsky, A., Fraysinnes, P-E., Emonot, P., Roccella, S., Widlund, O., Končar, B., Tekavčič, M.

“…•New flat tile concept for divertor target module out of a single heat sink for Wendelstein 7-X.•Minimized number of U-turns improves heat removal and reduces…”
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On the integral equation formulations of some 2D contact problems by Junghanns, P., Monegato, G., Strozzi, A.

“…Two integral equations, representing the mechanical response of a 2D infinite plate supported along a line and subject to a transverse concentrated force, are…”
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Optimal control for a parametrized family of nonlinear Cauchy singular integral equations by Junghanns, P.

“…An optimal control problem for a parametrized family of nonlinear Cauchy singular integral equations appearing, for example, in a boundary integral equation of…”
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MoS2 coatings for the narrow support elements of the W-7X nonplanar coils by KOCH, F, NOCENTINI, R, HEINEMANN, B, LINDIG, S, JUNGHANNS, P, BOLT, H

“…WENDELSTEIN 7-X (W7-X) is a stellarator presently under construction and assembly in Greifswald, Germany. The superconducting magnet system of W7-X consists of…”
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Cryogenic vacuum tests of scaled down narrow support elements for the W7-X coil system by Gradt, Th, Schneider, Th, Lingertat, J., Hathiramani, D., Junghanns, P., Assmus, K., Schauer, F.

“…The narrow support elements (NSEs) between the casings of the superconducting coils of the Wendelstein 7-X magnet system consist of pads made of Al–bronze,…”
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Production management and quality assurance for the fabrication of the In-Vessel Components of the stellarator Wendelstein 7-X by Li, C., Boscary, J., Dekorsy, N., Junghanns, P., Mendelevitch, B., Peacock, A., Pirsch, H., Sellmeier, O., Springer, J., Stadler, R., Streibl, B.

“…•Thousand parts for the divertor, first wall, cooling supply and diagnostics as W7-X In-Vessel Components.•Database building including part and assembly data,…”
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Tribological performance of MoS2 coatings in liquid helium and at high loads by LINGERTAT, J, GRADT, Th, HATHIRAMANI, D, JUNGHANNS, P, LAUX, M, MEINE, K, SCHAUER, F, SCHNEIDER, Th

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A biphenyl inhibitor of eIF4E targeting an internal binding site enables the design of cell-permeable PROTAC-degraders by Fischer, Patrick D., Papadopoulos, Evangelos, Dempersmier, Jon M., Wang, Zi-Fu, Nowak, Radosław P., Donovan, Katherine A., Kalabathula, Joann, Gorgulla, Christoph, Junghanns, Pierre P.M., Kabha, Eihab, Dimitrakakis, Nikolaos, Petrov, Ognyan I., Mitsiades, Constantine, Ducho, Christian, Gelev, Vladimir, Fischer, Eric S., Wagner, Gerhard, Arthanari, Haribabu

“…The eukaryotic translation initiation factor 4E (eIF4E) is the master regulator of cap-dependent protein synthesis. Overexpression of eIF4E is implicated in…”
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Matrix representations associated with collocation methods for Cauchy singular integral equations by Junghanns, P., Rost, K.

“…We prove representations for the coefficient matrices of the linear systems which occur by applying certain collocation methods to Cauchy singular integral…”
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A note on Kalandiya's method for a crack problem by Junghanns, P., Kaiser, R.

“…We discuss the problem of the instability of the numerical method proposed by Kalandiya[10] for the approximate solution of the two-dimensional elasticity…”
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On polynomial collocation for Cauchy singular integral equations with fixed singularities by Junghanns, P., Rathsfeld, A.

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Collocation–quadrature methods and fast summation for Cauchy singular integral equations with fixed singularities by Junghanns, P., Kaiser, R., Potts, D.

“…Basing on recent results on the stability of collocation methods applied to Cauchy singular integral equations with additional fixed singularities we give…”
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