نتایج جستجو برای: drives
تعداد نتایج: 34050 فیلتر نتایج به سال:
In this paper we propose a suitable reference wave for Pulse Width Modulation (PWM) AC Drives. Staircase reference waves whose levels are calculated to eliminate certain harmonics are studied and a certain staircase reference waveform with L levels is constructed. When L is made very large in limit, this staircase waveform approaches a continuous one which is called Quasine (Quasi + Sine). This...
Torque ripple minimization of switched reluctance motor drives is a major subject based on these drives’ extensive use in the industry. In this paper, by using a well-known cascaded torque control structure and taking the machine physical structure characteristics into account, the proposed energy-based (passivity-based) adaptive sliding algorithm derived from the view point of energy dissipati...
Gartner defines mobile data protection (MDP) products and services as software security methods that enforce confidentiality policies by encrypting data, and then defending access to that encrypted data on the primary and secondary storage systems of end-user workstations. These storage systems include the primary boot drive of a workstation and removable devices used for portability. Storage t...
The equation that describes the relationship between the applied voltage and the resulting electrostatic force within comb drives is often used to assist in choosing the dimensions for their design. This paper re-examines how some of these dimensions-particularly the cross-sectional dimensions of the comb teeth-affect this relationship in vertical comb drives. The electrostatic forces in severa...
This paper addresses the relationship between the ego, id, and internal objects. While ego psychology views the ego as autonomous of the drives, a less well-known alternative position views the ego as constituted by the drives. Based on Freud's ego-instinct account, this position has developed into a school of thought which postulates that the drives act as knowers. Given that there are multipl...
Gene drives are selfish genetic elements that use a variety of mechanisms to ensure they are transmitted to subsequent generations at greater than expected frequencies. Synthetic gene drives based on the clustered regularly interspersed palindromic repeats (CRISPR) genome editing system have been proposed as a way to alter the genetic characteristics of natural populations of organisms relevant...
Facing increasingly high failure rate of drives in data centers, reactive fault tolerance mechanisms alone can hardly guarantee high reliability. Therefore, some hard drive failure prediction models that can predict soon-to-fail drives in advance have been raised. But few researchers applied these models to distributed systems to improve the reliability. This paper proposes SSM (Self-Scheduling...
Hard disk drives returned back to Seagate undergo the Field Return Incoming Test. During the test, the available logs in disk drives are collected, if possible. These logs contain cumulative data on the workload seen by the drive during its lifetime, including the amount of bytes read and written, the number of completed seeks, and the number of spin-ups. The population of returned drives is co...
Magnetic hard disk drives have undergone vast technological improvements since their introduction as storage devices over 45 years ago, and these improvements have had a marked influence on how disk drives are applied and what they can do. Areal density increases have exceeded the traditional semiconductor development trajectory and have yielded higher-capacity, higherperformance, and smaller-f...
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