Fatigue response evaluation of stainless steel SS 304 L(N) and SS 316 L(N) through cyclic ball indentation studies

Prakash, Raghu V.; Madhavan, Krishna; Prakash, Anirudh R.; Sandhya, R.; Reddy, G.V. Prasad

doi:10.5334/uproc.38

Cited by 5 publications

(2 citation statements)

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“…High starting frequency implies that the shock is propagating through a high density region and hence a low formation height. Some of the coronal shock waves propagate in the interplanetary space and become the source of type II radio radiation in the decametric to kilometric wave range (Gopalswamy et al 2005;Lu et al 2017;Prakash et al 2017). In some of the type II burst events, fundamental and/or harmonic bands are split into two morphologically similar lanes (Nelson & Melrose 1985).…”

Section: Introductionmentioning

confidence: 99%

Properties of a Small-scale Short-duration Solar Eruption with a Driven Shock

Bao

Li²,

Lu³

et al. 2018

ApJ

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Large-scale solar eruptions have been extensively explored over many years. However, the properties of small-scale events with associated shocks have been rarely investigated. We present the analyses of a small-scale short-duration event originating from a small region. The impulsive phase of the M1.9-class flare lasted only for four minutes. The kinematic evolution of the CME hot channel reveals some exceptional characteristics including a very short duration of the main acceleration phase (< 2 minutes), a rather high maximal acceleration rate (∼50 km s −2 ) and peak velocity (∼1800 km s −1 ). The fast and impulsive kinematics subsequently results in a piston-driven shock related to a metric type II radio burst with a high starting frequency of ∼320 MHz of the fundamental band. The type II source is formed at a low height of below 1.1 R less than ∼ 2 minutes after the onset of the main acceleration phase. Through the band split of the type II burst, the shock compression ratio decreases from 2.2 to 1.3, and the magnetic field strength of the shock upstream region decreases from 13 to 0.5 Gauss at heights of 1.1 to 2.3 R . We find that the CME (∼ 4 × 10 30 erg) and flare (∼ 1.6 × 10 30 erg) consume similar amount of magnetic energy. The same conclusion for large-scale eruptions implies that small-and large-scale events possibly share the similar relationship between CMEs and flares. The kinematic particularities of this event are possibly related to the small footpoint-separation distance of the associated magnetic flux rope, as predicted by the Erupting Flux Rope model.

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Section: Introductionmentioning

confidence: 99%

Properties of a Small-scale Short-duration Solar Eruption with a Driven Shock

Bao

Li²,

Lu³

et al. 2018

ApJ

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“…The analysis also revealed that both acreage and productivity increased favourably between the pre-and post WTO eras. Prakash (2018) highlighted the value of ginger growing and said that it is a significant cash crop in the North East. The North East's rural growers can make money from their ginger business.…”

Section: Introductionmentioning

confidence: 99%

Present scenario of Ginger Farming in West- Garo Hills District Meghalaya: An Analysis

Sangma,

Kalita

2022

SMSJEI

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One of the key species grown in the North-East is ginger. The rural agricultural populations' livelihood comes from the cultivation of ginger, which also helps with socio-economic advancement. Farmer endeavors and the expansion of the production base are encouraged by the favourable soil and climatic characteristics of some of the chosen agro-climatic zones. However, there are some limitations on ginger production and marketing, especially from the perspective of farmers. This paper attempt to analyse the contemporary scenario of ginger farming in West-Garo Hills District of Meghalaya. The study is primarily undertaken from farmer's perspective. In the process of doing the same, constraints of the ginger growers are also taken into consideration. The study is based on both primary as well as secondary data. Ginger growers were selected based on non-probabilistic convenience sampling procedure. Desired responses were obtained with the help of structured schedule. It was observed that increasing input cost primarily affect the ginger growers. There is scope for improvement in the form of value addition at the growers' level, farmers can add significant value by processing and diversifying their raw ginger supply. The study's suggestive conclusion is that ginger-based agro-entrepreneurship should be promoted. The study suggest for the development of favourable market conditions to the growers' greater advantage. Absence of well-organized markets set up also acts as impediments in the process of production and marketing of ginger.

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