Results 1 to 10 of about 53,720 (293)

Mechanism and Mitigation of Actuator Saturation-Induced Vibration in Active Magnetic Bearing-Based Motors

open access: yesIEEE Access, 2023
This study investigates the occurrence of nonsynchronous, low-frequency vibrations in high-speed motor systems equipped with active magnetic bearings (AMBs).
Li Ji, Keping Chen, Xueqing Ma
doaj   +1 more source

A New Digital Signature Primitive and Its Application in Blockchain

open access: yesIEEE Access, 2023
In this paper, we propose a new digital signature primitive, called expander signature, and discuss its application in blockchain. The most promising advantage of expander signature is that a signer can generate all signatures at once using a powerful ...
Xiang Zou, Peng Zeng
doaj   +1 more source

Expanding Aesthetics [PDF]

open access: yesFrontiers in Veterinary Science, 2022
This paper seeks to expand traditional aesthetic dimensions of design beyond the limits of human capability in order to encompass other species' sensory modalities. To accomplish this, the idea of inclusivity is extended beyond human cultural and personal identities and needs, to embrace multi-species experiences of places, events and interactions in ...
openaire   +3 more sources

Explicit Expanding Expanders [PDF]

open access: yesAlgorithmica, 2015
Deterministic constructions of expander graphs have been an important topic of research in computer science and mathematics, with many well-studied constructions of infinite families of expanders. In some applications, though, an infinite family is not enough: we need expanders which are "close" to each other. We study the following question: Construct
Dinitz, Michael   +2 more
openaire   +3 more sources

Tissue Expansion: Comparative Analysis of Complications and Risk Factors [PDF]

open access: yesTurkish Journal of Plastic Surgery, 2017
Objective: This study is planned to evaluate the relationship between the complications that have occurred in our clinic after tissue expander application and patient age, sex, etiology, expander placement site, tissue expander volume, final expander ...
Sinem Çiloğu, Alpay Duran
doaj   +1 more source

Thermodynamic analysis of expansion process of screw expander in wet steam area [PDF]

open access: yesОмский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2021
In this scientific work, the process of expansion of wet steam with different values of the inlet degree of dryness in a screw expander is considered.
A. M. Kalashnikov   +2 more
doaj   +1 more source

Numerical Investigation of Compression and Expansion Process of Twin-Screw Machine Using R-134a

open access: yesEnergies, 2023
Increasing the efficiency of twin-screw machines is beneficial for gas compression and expansion applications. We used a computation fluid dynamic approach to obtain the flow field and efficiency of a twin-screw machine that used R-134a as the working ...
Chia-Cheng Tsao   +4 more
doaj   +1 more source

Concept Research of Compressed Air Energy Storage Power Plant Coupled with Pumped Hydro Storage

open access: yes南方能源建设, 2023
[Introduction] Energy storage is the basic condition for the development of new energy and the realization of carbon neutrality, where the pumped hydro storage is the most important energy storage method.
Kaiyun ZHENG   +2 more
doaj   +1 more source

SUBSTANTIATION OF THE BASIC PARAMETERS OF THE SCREW EXPANDER FOR PROCESSING HIGH PROTEIN CROPS [PDF]

open access: yesVolga Region Farmland, 2020
The article provides a way to increase the productivity of a screw press variety – the expander. The use of an expander makes it possible to produce compound feed in the form of non-solid whole meals, which has a beneficial effect on the process of ...
M.G. Zagoruiko   +2 more
doaj   +1 more source

Use of Preexpanded Forehead and Neck Skin in Case of Giant Facial Hairy Naevus: Planning and Technique

open access: yesIndian Journal of Plastic Surgery, 2021
A congenital nevi is a pigmented patch which requires complete surgical excision for cosmetic reasons. Here, we report a case of a patient with facial hairy pigmented lesion, occupying the right half of her face since birth, who underwent complete ...
Mukesh Kumar Sharma   +3 more
doaj   +1 more source

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