Results 51 to 60 of about 8,057 (291)

Intent Arabic text categorisation based on different machine learning and term frequency

open access: yesIET Networks, EarlyView., 2022
Abstract The complexity of Internet network configurations has made managing networks a complicated undertaking. Intent‐Based Networking (IBN) is a potential solution to this issue. In contrast to conventional networks, where a concrete description of the settings typically conveys a network administrator's goal kept on each device, an administrator's ...
Mohammad Fadhil Mahdi   +1 more
wiley   +1 more source

FREQUENCY PREDICTION OF STAGED COMBUSTION ROCKET ENGINE BASED ON RBF NEURAL NETWORK

open access: yesJixie qiangdu, 2015
In order to avoid creating or modifying the huge amount of finite element model of the rocket engine,application of the RBF( radial basis function) neural network which was used to predict structural frequency of the liquid rocket engine was analyzed.
DU FeiPing, TAN YongHua, CHEN JianHua
doaj  

Iron‐Based Catalysts for the Removal of Microplastics

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
Microplastics (MPs) are some of the newer environmental dangers and are still in need of optimal treatment. Iron‐based compounds can be used as catalysts for the removal of MPs due to the iron abundance, sustainability, and catalytic versatility. This review presents the current status of iron‐based materials for the photocatalytic, Fenton process, and
Rossella Greco   +3 more
wiley   +1 more source

Analysis of the characteristics of the ejector mode of the pulse detonation propulsion system of the combined acceleration cycle

open access: yesАвіаційно-космічна техніка та технологія
The subjects of this article are processes in the chamber of the pulse detonation propulsion system of the combined acceleration cycle (PSCA). The goal is to identify the most significant factors and study their influence on the defining characteristics ...
Olena Zolotko   +4 more
doaj   +1 more source

Dynamic Distribution‐Based Multiagent Cooperative Defense: An Enhanced Resource Allocation and Defense Efficiency Strategy

open access: yesAdvanced Intelligent Systems, EarlyView.
This study addresses multiagent defense challenges against low‐cost swarm attacks through a hierarchical framework combining resource allocation and PPO optimization. The three‐layer architecture coordinates strategic planning, deployment optimization, and real‐time execution.
Xiaokai Fei   +2 more
wiley   +1 more source

Design and Test of a Student Hybrid Rocket Engine with an External Carbon Fiber Composite Structure

open access: yesAerospace, 2020
The development of hybrid rockets offers excellent opportunities for the practical education of students at universities due to the high safety and relatively low complexity of the rocket propulsion system.
Francesca Heeg   +3 more
doaj   +1 more source

Harnessing halophyte‐derived allelochemicals and signaling molecules to enhance salinity tolerance in crops

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Soil salinization is a growing global challenge that significantly reduces agricultural productivity by impairing seed germination, growth, and yield. While conventional crops have limited tolerance to high salinity, halophytes are promising biological models for developing strategies to sustain agriculture in saline environments and ...
Gyöngyi Székely, Csengele Barta
wiley   +1 more source

Modeling and Evaluation of Reliability in Rocket Engine by Fault Tree Analysis [PDF]

open access: yesفصلنامه علوم و فناوری فضایی, 2010
Recognition of any type of failures in systems and prediction of its reliability have important role in improvement of design of systems. Fault Tree Analysis (FTA) is one of the best techniques in analysis and improvement of complex systems.
M. Karbasian, A. Bagheri
doaj  

Optimizing the Cooling System of an LH2/LOX Rocket Engine using the Bees Algorithm [PDF]

open access: yesمکانیک هوافضا, 2023
Upgrading the thermal efficiency of the cooling system of liquid rocket engines is one of the most significant and intricate problems in designing modern rocket engines in the missile industry.
Navid Bozorgan
doaj  

Research on Simulation and Generation Technology of Optical Signal of High‐Speed Projectile Passing through Target Based on Acousto‐Optic Modulation

open access: yesAdvanced Physics Research, EarlyView.
In order to conveniently test the accuracy of the optoelectronic velocity measuring system. This paper proposes a method for simulating the generation of the optical signals for projectile passing through the target by the acoustooptic modulation technology.
Wenbo Chu   +6 more
wiley   +1 more source

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