INTRODUCTION A novel technique was used to remove a large liver cyst via culdolaparoscopy. CASE DESCRIPTION We used laparoscopic instruments, a gastroscope, a laparoscopic rein, and magnets. The magnets consist of an external magnet and a specially modified tethered neodymium internal magnet, safe for use in transvaginal endoscopic surgery. DISCUSSION These technologies offer some advantage...

Skyrmions and antiskyrmions are swirling topological magnetic textures realized as emergent particles in magnets. A skyrmion is stabilized by the Dzyaloshinskii-Moriya interaction in chiral magnets and/or a dipolar interaction in thin film magnets, which prefer the twist of the magnetic moments. Here we show by a numerical simulation of the Landau-Lifshitz-Gilbert equation that pairs of skyrmio...

In order to optimize tunability and backgrounds in linear collider final focus systems, it is necessary to align strong quadrupole and sextupole magnets with beam-based measurements. Algorithms for alignment have been used successfully on the Final Focus Test Beam (FFTB) beamline at SLAC. Quadrupole magnets were aligned using a shunt technique, with resolutions from 50 microns down to 700 nanom...

This paper reviews recent developments in research in nanostructured permanent magnets (hard magnetic materials) with emphasis on bottom-up approaches to fabrication of hard/soft nanocomposite bulk magnets. Theoretical and experimental findings on the effects of soft phase and interface conditions on interphase exchange interactions are given. Synthesis techniques for hard magnetic nanoparticle...

The outlook for improving the energy product of permanent magnets beyond the theoretical limit of 516kJ/m3 for Nd,Fe,,B is discussed. Most promising are nanostructured two-phase magnets consisting of an aligned hard-magnetic skeleton phase possessing exceptionally high uniaxial anisotropy and a soft-magnetic phase which assures a high magnetization. Brown’s paradox is discussed for inhomogeneou...

1. Matter and Techniques at Low Temperatures 1.1.Introduction 1.2.Historical Remarks on the Development of Low Temperature Physics and Techniques 1.3.Combining Dilution Refrigeration with Adiabatic Nuclear Demagnetization: The Way to Microkelvin Physics 1.4.Macroscopic Quantum Phenomena: Superconductivity and Superfluidity 1.4.1.Superconductivity 1.4.2.Superfluidity 2. Magnetic Fields and Magne...

Hot deformation of Nd-Fe-B magnets has been studied for more than three decades. With a good combination of forming processing parameters, the remanence and (BH)max values of Nd-Fe-B magnets could be greatly increased due to the formation of anisotropic microstructures during hot deformation. In this work, a methodology is proposed for visualizing the material flow in hot-deformed Nd-Fe-B magne...

The Electrochemical Society Interface • Fall 2002 olecular magnetism has been one of the active areas in molecular chemistry for the last 15 years.1-6 The advantages of molecule-based magnets compared to classical metal and metal oxide ones are that the magnets can be obtained through a selection of proper spin sources (e.g., transition metal ions, organic radicals) and coordinating ligands. On...

Charged particle beam manipulation requires magnetic dipoles for steering and quadrupoles for focusing. Conventional magnets are currently used leading to very large and heavy systems. Miniaturization of the optic magnets would enable the development of more affordable systems and potentially portable devices. The Advanced Magnet Lab, Inc. has developed a revolutionary magnet topology and packa...

We seek expert assistance in performing a feasibility study for quadrupole magnets with inner radius at least 80 cm, field at that radius of at least 1.5 Tesla, and field integral at that radius of at least 3 Tesla-m. These magnets would be used as the spectrometer magnets in hadron-collider experiments that emphasize relatively low transverse momentum and large angular coverage, such as studie...