A seedling picking device is an essential component for automatic transplanter to automatically convey the dibbling part. It necessary find appropriate material and dimensions gears avoid mechanical damage increase their durability. Therefore, objectives of this research were analyze stress a gear mechanism in order select suitable materials dimensions, predict fatigue life by considering level...

We present a framework for automated analysis and categorization of .onion websites in the darkweb to facilitate analyst situational awareness of new content that emerges from this dynamic landscape. Over the last two years, our team has developed a large-scale darkweb crawling infrastructure called OnionCrawler that acquires new onion domains on a daily basis, and crawls and indexes millions o...

To improve the seedling-picking efficiency of vegetable transplanter and reduce damage rate seedling pot, a reciprocating device driven by full air pressure was designed. In this paper, structure working principle pneumatic are introduced. Through mechanical analysis between claw parameters such as stroke driving force clamping cylinder were determined. According to action sequence mechanism, w...

Aim of study: To determine the optimal working speed a gear-driven rotary planting mechanism for self-propelled riding-type onion transplanter in order to choose an adequate forward effective (Allium cepa L.) seedling planting.
 Area Daejeon, Korea.
 Material and methods: The was composed six hoppers that received free-falling seedlings through supply deposited them into soil. accurat...

Aiming at the problems of high specificity and low efficiency vegetable transplanting machine, a substrate block seedling transplanter was designed. Through theoretical calculation force analysis, structural parameters two key components automatic separation device planting are determined. Taking cabbage seedlings with 40 × 40mm size as experimental object, effects forward speed, frequency, fro...

This study was designed to investigate the effects of dietary onion flesh or onion peel on lipid peroxides and DNA damage in aged rats. Sprague Dawley male rats (n=40, 16 mo old) were blocked into five groups and raised for 3 mo with either an onion-free control diet or onion diets (Allium cepa L., intermediate-day variety) containing either 5% (w/w) powdered dried onion flesh, 5% (w/w) powdere...