This study proposes a novel magnetic circuit design to reduce the size of horizontal linear vibration motors (HLVMs) used in vehicle touchscreens. The HLVM prototype uses two thick permanent magnets create below voice coil; however, places four thin above and coil. Moreover, coil position has been changed yoke center an effective with short magnets. Compared vertical motor, force calculation me...

In order to solve the problems of low integration, reliability, and high cost caused by mechanical sensors used in bearingless permanent magnet synchronous motor (BPMSM) control systems, a novel speed displacement sensorless method using least-squares support vector machine (LS-SVM) left inverse system is proposed this paper. Firstly, suspension force generation principle BPMSM introduced, math...

This paper considers a slotless three-phase tubular permanent magnet generator located in an automotive suspension system for the application of vibration energy harvesting. A two-dimensional finite element method model harvester is produced and experimental setup that contains constructed. Signal decomposition methods are applied to measured displacement data resulting signal components used a...

Preservation and restoration of dental health patients is achieved by early detection treatment diseases, finding ways individual prevention, elimination risk factors for their development. The amount materials significantly increased used to restore the integrity teeth dentition. Among them are permanent fixation indirect non-removable restorations. material fill space between inner surface ar...

Dental trauma is an important public health problem due to high prevalence and associated limitations. The external impact accounting for trauma may result in different injury types to teeth and supporting structures. This paper describes a clinical case of tooth trauma in an 8-year-old patient exhibiting the displacement of three permanent teeth with open root apexes. Although the traumatic im...

Dilacerations generally involve central incisors; most often maxillary incisors rather than their mandibular counterparts. The clinical features of dilaceration include non-eruption the responsible tooth or prolonged retention deciduous predecessor tooth. In Case 1, showed a at boundary between crown and root, more laterally labiolingually. 2, dilacerated with relatively normal orientation dent...

A Permanent Magnet Linear Alternator (PMLA) works seamlessly with a Free Piston Stirling Engine (FPSE) to convert short-stroke and high-frequency linear motion electric power. Cogging force is an unavoidable opposition acting on the translator, limiting from driving force, which shortens lifespan of machine, causing oscillatory power output increased maintenance costs. This research focuses met...

In this paper, a novel maglev coupling based on the opposed Halbach array is proposed as interface between linear electro-mechanical converter and 2D valve body. This non-contact possesses several advantages over existing mechanical couplings such zero friction wear, low vibration noise, no lubrication, which expected to greatly improve control accuracy life cycle of valve. A detailed analytica...