Wireless cellular network for high speed (up to 500 km/h) vehicles

Sarkar, Mihir; Ahmed, Gulnaz; Uddin, Ashif; Hena, Most. Hasna; Rahman, Md. Atikur; Kabiraj, Ringko

doi:10.9790/2834-09130109

Cited by 7 publications

(4 citation statements)

References 7 publications

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“…The soil was sandy loam in texture and slightly acidic in nature, moderate in organic matter content and low in fertility level. The status of P and CEC is medium and that of K is low [3]. The experiment was initiated on September 2008 by ploughing the land.…”

Section: Methodsmentioning

confidence: 99%

Economic evaluation of mixed cropping of Mungbean with off-season Tossa jute seed crop

Parvez¹,

Islam²,

Haque³

et al. 2017

J biosci agric res

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Field experiments were conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University to identify the most profitable mixed cropping sequence of mungbean with off season Tossa jute. Experiment was laid out in a Randomized Complete Block Design with three replications, consisting of fourteen treatments. Results showed that plant population at harvest, plant height, branches plant-1 , seed yield and 1000-seed weight of jute were reduced in mixed cropping treatments as compared with sole cropping of jute. As a result, the seed yield of sole jute crop was always higher than that of mixed cropping treatments. The highest seed yield of jute was 485.5 kg ha-1 as sole cropping treatment and lowest seed yield of jute 122.5kg ha-1 was obtained in 80% mungbean+20% jute treatment. However, the highest land equivalent ratio (1.16) and monetary advantage (Tk 11724.13 ha-1) were found in of 100% mungbean+80% jute treatment which also gave the higher economic return than sole jute seed crop. Therefore, the seed yield of jute and mungbean at mixed cropping under variable seeding rates were less than their sole crop yields but the combined yields or equivalent yields of jute and mungbean from mixed cropping were more than the sole crop yield of either jute or mungbean. Thus mixed cropping of mungbean and jute appeared to be the best practice in terms of economic return to the farmers.

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Section: Methodsmentioning

confidence: 99%

Economic evaluation of mixed cropping of Mungbean with off-season Tossa jute seed crop

Parvez¹,

Islam²,

Haque³

et al. 2017

J biosci agric res

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“…High-speed trains (HSTs), with a speed of more than 200 km/h (Council Directive 96/48/EC, 1996), have attracted considerable attention in recent years as fast, convenient, safe and green public transportation systems (Sarkar et al, 2014). To ensure the normal operation of HSTs in varied environments, many studies attempted to address the problems associated with the system reliability and safety (Feng et al, 2018;Baouya et al, 2019;Lin et al, 2018a;Lu et al, 2019), and certain scholars focused on the risk management of HST systems (Gao et al, 2016;Zhang et al, 2016a;Chen et al, 2019;Hu et al, 2019;Su et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Network approach to modelling and analysing failure propagation in high-speed train systems

Lin

Jia

Zhang

et al. 2021

International Journal of Systems Science: Operations & Logi

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Since a high-speed train (HST) system is a complex integration of multiple minimum maintenance units (MMUs), a single faulty MMU can trigger a cascade of failures (specifically, in the form of fault spreading) and damage a substantial part of the overall HST system. To investigate the failure propagation in an HST system, the system is first abstracted to a weighted directed network composed of MMUs, connections and functional properties. Next, a failure propagation model is constructed from the perspective of load redistribution to mimic the process of failure propagation originating from a single failed MMU. The node reliability and the topological relationships among nodes are introduced to quantify the initial load and the capacity of nodes in the proposed model. Subsequently, this model is then applied to analyze the failure propagation in a China railway high-speed X (CRHX) HST under four types of attack strategies for a single MMU failure. The simulation results demonstrate that the proposed approach is highly effective in predicting the failure propagation, estimating the influence of the failure propagation on the holistic HST system, and diagnosing largescale failures. The experimental results can provide guiding significance for maintenance personnel to develop strategies to reduce losses and optimize the management scheme. Furthermore, these results may be of significance for managers who must adopt protective measures to minimize the risk of failure spreading and avoid catastrophes.

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“…Indeed, with fast mobility comes great complexity. The management of the mobile handover as well as the propagation limitations imposed by the Doppler frequency shift [3] need thus to be taken into consideration. A way to overcome the challenges of high-speed handover has been recently proposed where a mobile "cell-less" configuration is obtained thanks to an optical transmission system.…”

Section: Introductionmentioning

confidence: 99%

High-Speed Train Cell-less Network Enabled by XGS-PON and Impacts on vRAN Split Interface Transmission

Ankouri¹,

Neto²,

Simon³

et al. 2019

Optical Fiber Communication Conference (OFC) 2019

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Wireless cellular network for high speed (up to 500 km/h) vehicles

Cited by 7 publications

References 7 publications

Economic evaluation of mixed cropping of Mungbean with off-season Tossa jute seed crop

Economic evaluation of mixed cropping of Mungbean with off-season Tossa jute seed crop

Network approach to modelling and analysing failure propagation in high-speed train systems

High-Speed Train Cell-less Network Enabled by XGS-PON and Impacts on vRAN Split Interface Transmission

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