bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: Molten Salt Synthesis and Structural Characterization of Novel Salt‐Inclusion Vanadium Bronze Cs5FeV5O13Cl6.
Authors: Mahjoor Parisa , Latturner Susan E. 
Published: July 2010

AbstractSingle crystals of the title compound are prepared by reaction of V2O5 and Fe2O3 in the presence of V powder in a eutectic CsCl/NaCl flux (silica tube, 600 °C, 48 h).
ChemInform Abstract: Electrochemical Allylation of Carbonyl Compounds in Aqueous Electrolyte Catalyzed by Zinc.
Authors: Huang Jing‐Mei , Ren Hai‐Rui 
Published: July 2010

AbstractA highly efficient electrochemical allylation of aldehydes and ketones (I) with 25 mol% metal consumption from zinc cathode is reported.
ChemInform Abstract: Adaptative Biaryl Phosphite—Oxazole and Phosphite—Thiazole Ligands for Asymmetric Ir‐Catalyzed Hydrogenation of Alkenes.
Authors: Mazuela Javier , Paptchikhine Alexander , Pamies Oscar , Andersson Pher G. , Dieguez Montserrat 
Published: July 2010

AbstractA library of 17 chiral ligands is examined in the iridium‐catalyzed hydrogenation of (E)‐ and (Z)‐trisubstituted, and 1,1‐disubstituted terminal alkenes.
ChemInform Abstract: 3‐Isoxazolidinone: A New Achiral Template for Enantioselective Transformations.
Authors: Sibi Mukund P. , Gustafson Brandon , Coulomb Julien 
Published: July 2010

AbstractThe Diels—Alders reaction of 3‐isoxazolidinone acrylate (Ia) with cyclopentadiene in the presence of a chiral bisoxazoline proceeds with high diastereo‐ and enantioselectivity.
ChemInform Abstract: Efficient Rearrangement of Epoxides Catalyzed by a Mixed‐Valent Iron Trifluoroacetate [Fe3O(O2CCF3)6 (H2O)3].
Authors: Ertuerk Erkan , Goellue Mehmet , Demir Ayhan S. 
Published: July 2010

AbstractThe Fe catalyst efficiently promotes regioselective rearrangement of a wide range of epoxides.
ChemInform Abstract: Use of an Ionic Liquid as a Co‐solvent for Recyclable Pd/C‐Mediated N‐Debenzylation.
Authors: Choi Jin Kyu , Jeon Byung Sun , Cho Jong Hyun , Kim B. Moon 
Published: July 2010

AbstractThe application of [bmim]BF4 as co‐solvent for the N‐debenzylation increases the yield compared to reaction in MeOH as the sole solvent.
ChemInform Abstract: Synthesis of 1‐Propylsulfanylhexane Aminomethoxy Derivatives.
Authors: Mamedbeili E. G. , Dzhafarov I. A. , Kochetkov K. A. , Gasanov Kh. I. , Alieva S. T. 
Published: July 2010

AbstractNew derivatives of 1‐propylsulfanylhexane (VI) (5 examples) are synthesized by Mannich condensation of thioalkanol (III), secondary amines, and formaldehyde.
ChemInform Abstract: Regio‐ and Stereoselectivity in Halomethoxylation of 7‐Phenyl‐1‐phenylsulfonyltricyclo[4.1.0.02,7]heptane.
Authors: Vasin V. A. , Petrov P. S. , Kostryukov S. G. , Razin V. V. 
Published: July 2010

AbstractThe halomethoxylation of title phenylsulfonyl‐substituted tricycloheptane (I) proceeds with absolute regio‐ and stereoselectivity.
ChemInform Abstract: Synthesis of 2‐Substituted Quinones, Vitamin K3, and Vitamin K1 from p‐Cresol. BF3·OEt2‐Catalyzed Methyl Migration of 4‐tert‐Butyldioxycyclohexadienones.
Authors: Murahashi Shun‐Ichi , Fujii Akiko , Inubushi Yasutaka , Komiya Naruyoshi 
Published: July 2010

AbstractLewis acid promoted rearrangement of cyclohexadienones (I) and (III) provides 1,4‐benzoquinone derivatives.
ChemInform Abstract: Molecular Sieves‐Supported Palladium(I) Catalyst: Suzuki Coupling of Chloroarenes and an Easy Access to Useful Intermediates for the Synthesis of Irbesartan, Losartan and Boscalid.
Authors: Dey Raju , Sreedhar Bojja , Ranu Brindaban C. 
Published: July 2010

AbstractPdCl2 supported on 4A molecular sieves is found to by an efficient catalyst for the Suzuki reaction of chlorobenzenes.
ChemInform Abstract: Tandem Nazarov Cyclization—Halovinylation of Divinyl Ketones under Vilsmeier Conditions: Synthesis of Highly Substituted Cyclopentadienes.
Authors: Wang Mang , Han Feng , Yuan Hongjuan , Liu Qun 
Published: July 2010

AbstractA novel tandem Nazarov cyclization—halovinylation strategy is developed for the synthesis of highly substituted cyclopentadienes.
ChemInform Abstract: One‐Pot Synthesis of Novel Poly‐Substituted Phenanthrenes.
Authors: Yougnia Rodrigue , Rochais Christophe , Sopkova‐de Oliveira Santos Jana , Dallemagne Patrick , Rault Sylvain 
Published: July 2010

AbstractA one‐pot Suzuki—Miyaura cross‐coupling/Dieckmann—Thorpe ring closure protocol under microwave irradiation allows the introduction of diversity on various positions of the phenanthrene ring system.
ChemInform Abstract: Simple, One‐Pot, and Facile Synthesis of Angularly Fused [6—7—5], [6—7—6], [6—7—7], and [6,7] Ring Systems Using Baylis—Hillman Acetates.
Authors: Basavaiah Deevi , Aravindu Kunche , Kumar Katta Santosh , Reddy Kanumuri Ramesh 
Published: July 2010

AbstractThe reaction proceeds via alkylation, generation of a vinyl chloride and intramolecular cyclization.
ChemInform Abstract: Synthesis, in vitro Antimicrobial and Cytotoxic Studies of Novel Azetidinone Derivatives.
Authors: Keri Rangappa S. , Hosamani Kallappa M. , Reddy Harisha S. , Shingalapur Ramya V. 
Published: July 2010

AbstractA variety of new azetidinone derivatives bearing chromene moiety is synthesized via reaction of azomethines (I) with chloroacetyl chloride.
ChemInform Abstract: Palladium‐Catalyzed Synthesis of Carbazoles from N‐(2‐Halophenyl)‐2,6‐diisopropylanilines via C—C Cleavage.
Authors: Chianese Anthony R. , Rogers Scott L. , Al‐Gattas Hanna 
Published: July 2010

AbstractThe unexpected cyclization process, recently observed by the authors during the attempted amination of veratrole with 2,6‐diisopropylaminiline, is investigated in detail.
ChemInform Abstract: Microwave Assisted One‐Pot Synthesis of Pyrrolo[2,1‐b]thiazol‐6‐ones from α‐Aroyl Ketene‐N,S‐acetals.
Authors: Mathew Paulson , Prasidha M. , Asokan C. V. 
Published: July 2010

AbstractDepending on conditions, the reaction between β‐oxothiamides (I) and phenacyl bromides (II) leads either to α‐aroyl ketene‐N,S‐acetals (III) or thiazole (V).
ChemInform Abstract: Synthesis of 1‐(1H‐Indol‐3‐yl)‐1,2‐dihydroisoquinolines via AgOTf‐Catalyzed Three‐Component Reactions of 2‐Alkynylbenzaldehydes, Amines, and Indoles.
Authors: Yu Xingxin , Wu Jie 
Published: July 2010

AbstractThe tandem reaction combines mild conditions with tolerance against substrate modification; only strong electron‐releasing groups attached to the aromatic 2‐alkynylbenzaldehyde backbone such as in (IX) prevent the reaction.
ChemInform Abstract: Facile and One‐Pot Synthesis of 1,2‐Dihydroquinazolin‐4(3H)‐ones via Tandem Intramolecular Pinner/Dimroth Rearrangement.
Authors: Tang Jian‐Hong , Shi Da‐Xin , Zhang Li‐Jun , Zhang Qi , Li Jia‐Rong 
Published: July 2010

Abstract1,2‐Dihydroquinazolin‐4(3H)‐ones of type (III) are obtained by the cyclization of o‐aminonitriles with aromatic aldehydes using ZnCl2 as a promoter.
ChemInform Abstract: Sulfamic Acid Catalyzed, Three‐Component, One‐Pot Synthesis of [1,2,4]Triazolo/Benzimidazolo Quinazolinone Derivatives.
Authors: Heravi Majid M. , Derikvand Fatemeh , Ranjbar Leila 
Published: July 2010

AbstractQuinazolinone derivatives of type (IV) or (VI) are prepared in a three‐component one‐pot synthesis using sulfamic acid as catalyst.
ChemInform Abstract: Efficient Three‐Component Synthesis of 4‐Aminoquinazolines.
Authors: Heravi Majid M. , Sadjadi Samaheh , Haj Negar Mokhtari , Oskooie Hossein A. , Bamoharram Fatemeh F. 
Published: July 2010

AbstractPreyssler acid on silica nanoparticles is used as efficient catalyst in the three‐component, one‐pot synthesis of 4‐aminoquinazolines, e.g. (III).
ChemInform Abstract: Reaction of 3,6‐Di(tert‐butyl)‐1,2‐benzoquinone with Terminal Alkylacetylenes in the Presence of Phosphorus Trichloride.
Authors: Nemtarev A. V. , Mironov V. F. , Bogdanov A. V. , Cherkasov V. K. , Druzhkov N. O. , Gubaidullin A. T. , Litvinov I. A. , Musin R. Z. 
Published: July 2010

AbstractBenzo[e][1,2]oxaphosphinine 2‐oxide derivatives are obtained in the reaction of alkyl‐ and haloalkylacetylenes with sterically hindered benzoquinone (I) in the presence of phosphorous trichloride.
ChemInform Abstract: A Novel Simple Synthesis of Bis(diorganoselenophosphoryl)selenides (R2PSe)2Se from Secondary Phosphines and Elemental Selenium.
Authors: Artem'ev Alexander V. , Gusarova Nina K. , Malysheva Svetlana F. , Ushakov Igor A. , Trofimov Boris A. 
Published: July 2010

AbstractAn unexpected reaction of secondary phosphines with excess elemental selenium affords the title compounds (II) in good yields.The expected diselenide products and diselenophosphinoic acids are not observed.
ChemInform Abstract: Reactions of Diferrocenylmorpholino‐ and ‐methylsulfanyl‐cyclopropenylium Salts with β‐Dicarbonyl Compounds and Diethyl Malonate.
Authors: Klimova Elena I. , Mendez Stivalet J. M. , Klimova T. , Flores‐Alamo M. , Backinowsky L. V. , Ortiz‐Frade Luis , Martinez Garcia M. 
Published: July 2010

AbstractThe different outcome of title reactions with both cyclopropenylium salts is studied and the underlying mechanisms are discussed.
ChemInform Abstract: 2‐(Het)arylhydrazono‐1,3‐dicarbonyl Compounds in Organic Synthesis
Authors: Shchegol'kov E. V. , Burgart Ya. V. , Khudina O. G. , Saloutin V. I. , Chupakhin O. N. 
Published: July 2010

AbstractReview: 273 refs.
Tropomyosin is a tetramer under physiological salt conditions
Authors: Lassing Ingrid , Hillberg Louise , Höglund Anna‐Stina , Karlsson Roger , Schutt Clarence , Lindberg Uno 
Published: July 2010

AbstractTropomyosin (TM) is a coiled‐coil dimer of α‐helical peptides, which self associates in a head‐ to‐tail fashion along actin polymers, conferring stability to the microfilaments and serving a regulatory function in acto‐myosin driven force generation. While the major amount of TM is associated with filaments also in non‐muscle cells, it was recently reported that there are isoform‐specific pools of TM multimers (not associated with F‐actin), which appear to be utilized during actin polymerization and reformed during depolymerization. To determine the size of these multimers, skeletal muscle TM was studied under different salt conditions using gel‐filtration and sucrose gradient sedimentation, and compared with purified non‐muscle TM 1 and 5, as well as with TM present in non‐muscle cell extracts and skeletal muscle TM added to such extracts. Under physiological salt conditions TM appears as a single homogenous peak with the Stokes radius 8.2 nm and the molecular weight (mw) 130,000. The corresponding values for TM 5 are 7.7 nm and 104,000, respectively. This equals four peptides, implying that native TM is a tetramer in physiological salt. It is therefore concluded that the TM multimers are tetramers. © 2010 Wiley‐Liss, Inc.
Confinement Studies in the Columbia Non‐Neutral Torus
Authors: Brenner P. W. , Pedersen T. S. , Sarasola X. , Hahn M. S. 
Published: July 2010

AbstractWe present results from a systematic study of confinement of pure electron plasmas in the Columbia Non‐neutral Torus (CNT) stellarator. Recent results show more than an order of magnitude improvement in con‐finement, with the new best confinement time measured to be 0.32 seconds. This large improvement is the combined result of lower neutral pressure (nearly a factor of five lower), higher magnetic field (a factor of two), and the installation of a conducting boundary designed to control electrostatic boundary conditions. New external diagnostics are being developed in preparation for electron‐positron plasma operation. Confinement times measured with an edge potential probe are in good agreement with confinement times calculated based on the steady state emission current of static discharges. Plasmas created from an emitter that is extracted in 0.02 seconds do not survive after extraction even in cases where the confinement time is initially much longer than the rod retraction time (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Enhancement of Residual Zonal Flows in Helical Systems with Equilibrium Radial Electric Fields
Authors: Sugama H. , Watanabe T.‐H. 
Published: July 2010

AbstractThe collisionless response of the zonal‐flow potential to the initial particle distribution and turbulence source is theoretically described for helical systems with equilibrium radial electric fields driving the poloidal E × B rotation of helical‐ripple‐trapped particles. Theoretically predicted enhancement of the residual zonal‐flow potential due to the E × B rotation is verified by the linear gyrokinetic Vlasov simulation using the poloidally global domain for a model magnetic geometry corresponding to the inward‐shifted LHD configuration (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
First Observations of Partially Neutralized and Quasineutral Plasmas in the Columbia Non‐Neutral Torus
Authors: Sarasola X. , Pedersen T. S. , Brenner P. W. , Hahn M. S. 
Published: July 2010

AbstractThe Columbia Non‐neutral Torus (CNT) is a stellarator designed to study pure electron, partially neutralized and positron‐electron plasmas. CNT usually operates with electron rich plasmas (with negligible ion density) [1]. The accumulation of ions alters the equilibrium of electron plasmas in CNT and a global instability has been observed when the ion fraction exceeds 10%. A characterization of this instability is presented in [2], analyzing its parameter dependence and spatial structure (non‐resonant with rational surfaces). A segmented conducting mesh has been installed to impose the electrostatic boundary condition at the plasma edge. Results after the installation of the conducting boundary confirm the presence of an instability in electron rich plasmas with a finite ion content. A new set of experiments is currently underway studying plasmas of arbitrary degree of neutralization, ranging from pure electron to quasineutral plasmas. Basic observations show that the plasma potential decouples from the emitter bias when we increase the degree of neutralization of our plasmas. Partially neutralized plasmas are also characterized by multiple mode behavior with dominant frequencies between 20 and 200 kHz. When the plasma becomes quasineutral, it reverts to single mode behavior (2 ‐ 18 kHz). The first results on partially neutralized and quasineutral plasmas in CNT are reported on here (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Effects of Supersonic Molecular Beam Injection (SMBI) on Plasma Performance in Heliotron J
Authors: Mizuuchi T. , Kobayashi S. , Yamamoto Y. , Okada H. , Nagasaki K. , Minami T. , Watanabe S. , Mukai K. , Kishi S. , Lee H. Y. , Minami K. , Takabatake Y. , Nishino N. , Nakashima Y. , Nakamura Y. , Hanatani K. , Konoshima S. , Sano F. 
Published: July 2010

AbstractGas fueling by supersonic molecular beam injection (SMBI) is successfully applied to ECH/NBI plasmas in Heliotron J. The stored energy reached ∼4.5 kJ for a heating combination of ECH (∼0.35 MW) and NBI (∼0.6 MW), which is about 50 % higher than the maximum one achieved so far under the conventional gas‐puffing in Heliotron J. After an SMBI pulse for ECH+NBI plasma, two different kinds of perturbation in the radiation profile are caused simultaneously in the center and the peripheral regions. For ECH plasma, an SMBI pulse causes increase or decrease of electron temperature, which seems to depend on the target density (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
ECCD Experiments Using the Upgraded Launching System in Heliotron J
Authors: Nagasaki K. , Sakamoto K. , Minami K. , Yoshino H. , Mizuuchi T. , Okada H. , Hanatani K. , Minami T. , Masuda K. , Kobayashi S. , Yamamoto S. , Konoshima S. , Nakamura Y. , Ohshima S. , Mukai K. , Kishi S. , Lee H. Y. , Takabatake Y. , Motojima G. , Yoshimura Y. , Fernández A. , Cappa Á. , Blackwell B. , Sano F. 
Published: July 2010

AbstractElectron cyclotron current drive (ECCD) experiments have been made in Heliotron J by using an upgraded EC launching system. A focused Gaussian beam is injected with the parallel refractive index, N||, ranging from ‐0.05 to 0.6. Ray tracing calculation shows that the EC power is more localized than that in the previous launching system. In the initial ECCD experiment, the EC injection angle has been successfully scanned as designed. Comparison between perpendicular and oblique launching experiments shows that for standard configuration, the EC current of 1 kA is driven at N|| ∼ 0.3 in the Fisch‐Boozer direction, and the bootstrap current flows up to 1 kA. A large increase in electron cyclotron emission (ECE) signals has been observed when the EC current was driven (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Status of a Stellarator/Heliotron H‐mode Database
Authors: Akiyama T. , Hirsch M. , Estrada T. , Hidalgo C. , Mizuuchi T. 
Published: July 2010

AbstractThis paper describes the purpose and the structure of the database of confinement improvement modes in helical devices under activities of the International Stellarator/Heliotron Profile Database (ISHPDB). Data are being collected from 4 devices: CHS, LHD, TJ‐II and W7‐AS. This database will include sets of profiles and global data prior to a transition and ones in the fully developed improved mode in the UFILE format, detailed edge profiles and thresholds of the power and the density for the transition (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Overview of L‐H Transition Experiments in Helical Devices
Authors: Hirsch M. 
Published: July 2010

AbstractThe observation of the H‐mode and ELMs in helical devices confirms the generic character of these phenomena in toroidal confinement. Particularities are the strong impact of the magnetic edge configuration on transition and ELM phenomenology and the existence of a mean E × B flow shear already predefined by the condition given from the neoclassical fluxes. The observations indicate that the classical H‐mode as a bifurcation phenomenon possibly associated with dynamic sheared flows is biased by these equilibrium mean shear flow conditions of the 3D plasma edge. Besides this classical H‐mode other Edge Transport Barriers can be realized which are related to the development a mean shear flow on a transport timescale (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Configuration Studies on the Heliotron Fusion Energy Reactor with Split‐Type Helical Coils
Authors: Yanagi N. , Nishimura K. , Goto T. , Sagara A. , Motojima O. 
Published: July 2010

AbstractConfiguration optimization is examined for the heliotron fusion energy reactor FFHR in order to find sufficient clearances between the ergodic region outside the nested magnetic surfaces and blankets at the inboard side of the torus. The standard configuration of FFHR, which is similar to that of LHD, has a relatively large major radius of the helical coils in order to satisfy this requirement. It has been found, as an alternative design, that equivalent clearances are obtained with a shorter major radius both by employing a lower helical pitch parameter and splitting the helical coils in the poloidal cross‐section at the outboard side. Splitting the helical coils also provides another configuration that ensures magnetic well formation in the fairly large nested magnetic surfaces with outward shifted configurations. Optimization is being carried out for these configurations by adjusting the pitch modulation parameter to improve the particle confinement (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Collective Thomson Scattering of 77 GHz High‐Power ECRH Beam in LHD
Authors: Kubo S. , Nishiura M. , Tanaka K. , Tamura N. , Shimozuma T. , Tatematsu Y. , Saito T. , Yoshimura Y. , Igami H. , Takahashi H. , Ikeda R. 
Published: July 2010

AbstractThe measurement of the ion velocity distribution is especially important in reactor relevant plasmas. The collective Thomson scattering (CTS) is one of the most promising methods for evaluating the ion velocity distribution function. In spite of its potential, this method had long been suffered from the absence of adequate power sources. Recent development in the higher power, and higher frequency range of the gyrotron and the transmission technique enabled to realize the measurement of not only the bulk but also high energy component of the ion velocity distribution function. One of the newly installed 77 GHz gyrotrons in LHD that can generate more than 1 MW over 5 s and is connected to one of the Gaussian mirror beam launching antenna sets is used as a probing beam for CTS. A heterodyne receiver system of a fundamental mixer with fixed frequency local oscillator was installed on the upstream of the transmission line. The probe beam is 100% power modulated at 50 Hz to separate the scattering component from background ECE. Signals that can be attributed to the CTS were obtained and the analysis method of these data are developed (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Energy and Particle Balance Studies Under Full Boron and Lithium‐Coated Walls in TJ‐II
Authors: Tabarés F.L. , Ochando M. , Tafalla D. , Medina F. , McCarthy K. , Fontdecaba J. M. , Liniers M. , Guasp J. , Ascasíbar E. , Estrada T. , Pastor I. , TJ‐II Team  
Published: July 2010

AbstractThe Spanish stellarator TJ‐II has been operated under lithium wall conditions for two years so far. Important changes in plasma parameters and, in particular, on particle recycling have been recorded with respect to the normal, boronized wall conditions previously prevailing. The specific effects that the new recycling scenario could have on the improved plasma parameters, and in particular to the global energy balance of electrons and protons are addressed in the present work. In addition, the possible increase in ion energies impinging on the walls should be mirrored by the incoming flux of sputtered lithium atoms. However, a strong decrease of the corresponding sputtering yield is recorded. This effect is analyzed in terms of possible material mixing effects among others (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Analysis of LHD Magnetic Configurations Based on a Boundary Shape Control for Improving Confinement Properties
Authors: Okamura S. 
Published: July 2010

AbstractMagnetic configurations of LHD experiments are analyzed from a viewpoint of boundary shape. Effects of Fourier mode components on confinement properties are examined for three configurations with magnetic axis shift. It was confirmed that the basic confinement properties are determined by a small number of components. Contribution of components producing a non‐planar axis structure is necessary to obtain the fundamental confinement properties of inward shifted (favorable drift orbits) and outward shifted (creation of magnetic well) configurations of LHD. Further improvement is possible by controlling appropriate Fourier components (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
A Monte‐Carlo‐Based Calculation of Neoclassical Flows and Viscosity for Nonaxisymmetric Toroidal Plasmas
Authors: Matsuyama A. , Hanatani K. , Watanabe K. Y. , Nakajima N. 
Published: July 2010

AbstractThis paper reports the Monte‐Carlo calculation of the neoclassical diffusion and viscosity coefficients with the incompressible E × B drift. A recently developed Monte‐Carlo code, based on the Einstein‐Helfand relation, is extended for this purpose. Present status of a Monte‐Carlo‐based moment transport code to evaluate the neoclassical flows for multiple species plasmas is also discussed (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Simulation Study of the MHD Stability Beta Limit in LHD by TASK3D
Authors: Sato M. , Watanabe K. Y. , Nakamura Y. , Fukuyama A. , Murakami S. , Toda S. , Yokoyama M. , Funaba H. , Sakakibara S. , Ohdachi S. , Yamada H. , Nakajima N. 
Published: July 2010

AbstractThe numerical method for analysis of the “MHD stability beta limit” based on a hierarchy integrated simulation code TASK3D has been developed. The numerical model for the effect of the MHD instabilities is introduced such that the pressure profile is flattened around the rational surface due to the MHD instabilities. The width of the flattening of the pressure gradient is determined from the width of the eigenmode structure of the MHD instabilities (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)