Results 91 to 100 of about 291,391 (260)

Lectotypifications and taxonomic changes in the holoparasitic Orobanchaceae

Nordic Journal of Botany, EarlyView.
Based on further extensive studies of specimens in various herbaria, lectotypes are designated for many taxa of holoparasitic Orobanchaceae. In particular, 47 names in the genera Boschniakia (incl. Xylanche), Cistanche, Orobanche, Phelipanche and Phelypaea are lectotypified.
Holger Uhlich, Stefan Rätzel, Óscar Sánchez Pedraja, Renata Piwowarczyk, Valerio Lazzeri, Patrice Descombes   +5 more
wiley   +1 more source

Ideal magnetohydrodynamic simulations of unmagnetized dense plasma jet injection into a hot strongly magnetized plasma

, 2011
We present results from three-dimensional ideal magnetohydrodynamic simulations of unmagnetized dense plasma jet injection into a uniform hot strongly magnetized plasma, with the aim of providing insight into core fueling of a tokamak with parameters ...
Arseniev, Bengtsson, Castel, Cheifetz, Goodin, H. Jin, Hamilton, Hara, Hara, Hotchkis, Hua, Hwang, Lhersonneau, Li, Luo, Möller, Nilsson, Orlandi, Rodriguez-Guzman, S.-Y. Yu, Sheihk, Sheikh, Sheikh, Sheline, Shizuma, Sieja, Skalski, Smith, Stephens, Sun, Urban, Urban, Velazquez, Verma, Wood, Wu, X.-H. Zhou, Y. Sun, Y.-C. Yang, Y.-H. Zhang, Y.-X. Liu, Yang, Yeoh   +42 more
core   +1 more source

AGPLO‐Driven Optimisation for Accurate Segmentation of Papillary Thyroid Carcinoma in Medical Imaging

CAAI Transactions on Intelligence Technology, EarlyView.
ABSTRACT Papillary Thyroid Carcinoma (PTC) is the most prevalent thyroid malignancy, and accurate lesion segmentation is essential for clinical diagnosis and treatment planning. Metaheuristic optimisation algorithms have been widely used in Multi‐Threshold Image Segmentation (MTIS), but many existing methods suffer from an imbalance between global ...
Jing Ruan, Xiaoxiao Chen, Hanbing Yao, Yujia Xu, Shiqi Xu, Shihao Zhao, Yulun Wu, Yingting Dai, Yubing Chen, Shuqing Ma, Qiongying Zhang, Ying Zhou, Ali Asghar Heidari, Huiling Chen, Yangping Shentu   +14 more
wiley   +1 more source

Diagnostics for plasma control – From ITER to DEMO

Fusion engineering and design, 2019
The plasma diagnostic and control (D&C) system for a future tokamak demonstration fusion reactor (DEMO) will have to provide reliable operation near technical and physics limits, while its fron ...
Wolfgang Biel, R. Albanese, R. Ambrosino, M. Ariola, M. V. Berkel, I. Bolshakova, K. J. Brunner, Roberto Cavazzana, M. Cecconello, S. Conroy, A. Dinklage, I. Ďuran, R. Dux, T. Eade, S. Entler, G. Ericsson, E. Fable, D. Farina, L. Figini, C. Finotti, T. Franke, L. Giacomelli, L. Giannone, W. Gonzalez, A. Hjalmarsson, M. Hron, F. Janky, A. Kallenbach, J. Kogoj, R. König, O. Kudlacek, R. Luís, A. Malaquias, O. Marchuk, G. Marchiori, M. Mattei, F. Maviglia, G. D. Masi, D. Mazon, H. Meister, K. Meyer, D. Micheletti, S. Nowak, C. Piron, A. Pironti, N. Rispoli, V. Rohde, G. Sergienko, S. E. Shawish, M. Siccinio, António Silva, F. D. Silva, C. Sozzi, M. Tardocchi, M. Tokar, W. Treutterer, H. Zohm   +56 more
semanticscholar   +1 more source

A phenomenographic study of alternative conceptions in general chemistry among Palestine Technical University – Kadoorie Students

Cogent Education
This study investigates alternative conceptions of chemistry concepts among Faculty of Science students at Palestine Technical University-Kadoorie. Students are found to have incorrect views about fundamental chemistry concepts.
Nuha Ismail Iter
doaj   +1 more source

Iterative Algebras: How Iterative are They?

Theory and Applications of Categories, 2008
Summary: Iterative algebras, defined by the property that every guarded system of recursive equations has a unique solution, are proved to have a much stronger property: every system of recursive equations has a unique strict solution. Those systems that have a unique solution in every iterative algebra are characterized.
Adámek, J., Börger, R., Milius, S., Velebil, J.   +3 more
openaire   +2 more sources

Threshold Currents of Vacuum Arcs With Tungsten and Copper Cathodes

High Voltage, EarlyView.
ABSTRACT This paper presents the results of an experimental study aimed at determining the threshold current for triggering a vacuum arc discharge, the probability of arc ignition and the average arc operation time depending on the current for tungsten and copper electrodes.
P. S. Mikhailov, I. L. Muzyukin, I. V. Uimanov, D. L. Shmelev, S. A. Barengolts   +4 more
wiley   +1 more source

Progress in disruption prevention for ITER

Nuclear Fusion, 2019
Key plasma physics and real-time control elements needed for robustly stable operation of high fusion power discharges in ITER have been demonstrated in recent research worldwide.
E. Strait, J. Barr, M. Baruzzo, J. Berkery, R. Buttery, P. D. Vries, N. Eidietis, R. Granetz, J. Hanson, C. T. Holcomb, D. A. Humphreys, Jayhyun Kim, E. Kolemen, M. Kong, M. Lanctot, M. Lehnen, E. Lerche, N. Logan, M. Maraschek, M. Okabayashi, Jinseop Park, A. Pau, G. Pautasso, F. Poli, Cristina Rea, S. Sabbagh, O. Sauter, Eugenio Schuster, U. Sheikh, C. Sozzi, F. Turco, A. Turnbull, Zhirui Wang, W. Wehner, L. Zeng   +34 more
semanticscholar   +1 more source

Flap Anatomies and Victorian Veils: Penetrating the Female Reproductive Interior

Gender &History, EarlyView.
ABSTRACT This article examines the reappearance in the early nineteenth century of anatomical flapbooks in the context of obstetrical education in Britain, America and France. It asks why liftable paper flaps were reintroduced at this time after their disappearance from medical atlases in the eighteenth century.
Margaret Carlyle, Marcia D. Nichols
wiley   +1 more source

Physics conclusions in support of ITER W divertor monoblock shaping

, 2017
The key remaining physics design issue for the ITER tungsten (W) divertor is the question of monoblock (MB) front surface shaping in the high heat flux target areas of the actively cooled targets. Engineering tolerance specifications impose a challenging
R. Pitts, S. Bardin, B. Bazylev, M. V. D. Berg, P. Bunting, S. Carpentier-Chouchana, J. Coenen, Y. Corre, R. Dejarnac, F. Escourbiac, J. Gaspar, J. Gunn, T. Hirai, S. Hong, J. Horáček, D. Iglesias, M. Komm, K. Krieger, C. Lasnier, G. Matthews, T. Morgan, S. Panayotis, S. Pestchanyi, A. Podolnik, R. Nygren, D. Rudakov, G. D. Temmerman, P. Vondracek, J. Watkins   +28 more
semanticscholar   +1 more source