Results 11 to 20 of about 255,235 (311)

Prediction Power Propulsion of the Ship at the Stage of Preliminary Design. Part I: Forecasting Method for Power Propulsion of Ship at the Stage of Preliminary Design

open access: yesManagement Systems in Production Engineering, 2017
During the design of the ship the most important decisions are made at the stage of preliminary design. One of the most important design parameters assumed by the shipowner is its service speed in real weather conditions occurring in the shipping line ...
Szelangiewicz Tadeusz   +1 more
doaj   +1 more source

SYNERGETIC APPROACH TO THE CALCULATION OF ONE-GROUP TRAIN FORMATION PLAN

open access: yesNauka ta progres transportu, 2018
Purpose. The research aims at the analysis of the possibility of using in the development of one-group train formation plan the criterion, which allows to consider the costs associated with the movement of cars and locomotives. Methodology.
V. Y. Negrey, K. M. Shkuryn
doaj   +1 more source

Analisis Dampak Integrasi Data terhadap Kecepatan Pelayanan Publik di Kota Surabaya

open access: yesJurnal Sistem Informasi, 2018
Since 2013, through Surabaya Single Window (SSW), the Government of Surabaya City has implemented the innovation of public service (electronic government, e-Government) to integrate residence data to the applicant with domicile of Surabaya.
Renny Sari Dewi
doaj   +3 more sources

The relationship between service performance and physical strength focusing on speed and spin rate in Japanese elite junior tennis players

open access: yesInternational Journal of Racket Sports Science, 2021
Service is the most powerful and potential shot in tennis. To reach global elite status, Japanese players, being generally inferior in height, must overcome the limitations in service performance. If their height is insufficient, they must improve their
Nahoko Koya   +2 more
doaj   +1 more source

Wear issues of pumping units [PDF]

open access: yesE3S Web of Conferences, 2021
The article presents the possibility of increasing the service life of pumping units. Particular attention is paid to the regulation of the speed of rotation of the pumping unit. There are some assumptions in the mathematical model that do not affect the
Ishnazarov Oybek   +4 more
doaj   +1 more source

Prediction Power Propulsion of the Ship at the Stage of Preliminary Design Part II: Mathematical Model Ship Power Propulsion for Service Speed Useful in the Preliminary Design

open access: yesManagement Systems in Production Engineering, 2017
During the design of the ship the most important decisions are made at the stage of preliminary design. One of the most important design parameters assumed by the shipowner is its service speed in real weather conditions occurring in the shipping line ...
Szelangiewicz Tadeusz, Żelazny Atarzyna
doaj   +1 more source

M/M/∞ Queue with ON-OFF Service Speeds [PDF]

open access: yesJournal of Mathematical Sciences, 2013
In this paper we analyze of a special kind of M/M/8 queueing system. We assume that the rate of the servers alternates between two speeds according to an ON–OFF process whose ON periods are exponentially distributed and with general OFF periods. We look at the particular case where the OFF service rate is zero while the distribution of the OFF periods ...
openaire   +3 more sources

Multifunctional strut-plate composite lattice metamaterial for integrated acoustic, energy, and vibration management

open access: yesVirtual and Physical Prototyping
In the pursuit of engineering solutions capable of managing persistent hazards such as noise, vibration, and structural impacts, materials that combine sound absorption, vibration damping, and deformation resistance are crucial.
Xi Wang   +4 more
doaj   +1 more source

Hydrolysis behavior and mechanism of AlON powders

open access: yesMaterials & Design
AlON-C (∼25 μm) powders were prepared using the carbothermal reduction and nitridation (CRN) method. The powders were subsequently processed through milling to obtain AlON-M (∼1.6 μm) and AlON-F (∼456 nm).
Jianxin Xu   +4 more
doaj   +1 more source

Quality of service improvement for high-speed railway communications [PDF]

open access: yesChina Communications, 2014
9 pages, 7 figures, China Communications, accepted for publication, August ...
Yuzhe Zhou, Bo Ai 0001
openaire   +2 more sources

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