با توجه به رشد بالای جمعیت در جهان و نیاز اطمینان از امنیت غذایی، افزایش تولید واحد سطح محصولات زراعی به‌منزلة راهبردی اساسی حل مسئلة تأمین غذا به‌شمار می‌رود. سوی دیگر، وجود محدودیت زیرکشت پایین‌بودن میانگین عملکرد برخی کشاورزی مانند گندم کشور، محصول می‌تواند راهکاری عملی پاسخ کشور محسوب شود. یکی مهم‌ترین بیماری‌های فوزاریوم است که، نقش پیش‌بینی این بیماری جلوگیری کاهش بهره‌وری محصول، مدل‌هایی...

An investigation into the mechanical response of pneumatically-spliced carbon fibre yarns as a potential reinforcing material for polymer composites is presented. High strength connections between are produced by joining short discontinuous tows longer lengths via entanglement. The effect altering number high-pressure air pulses fired commercially available (Airbond 701H) splicing machine, to f...

The northwestern Gulf of Mexico shelf experiences one of the largest seasonal hypoxic zones in the western hemisphere. Hypoxia (dissolved oxygen, DO ≤ 2.0 mg·L-1) is most severe from May to August during the height of the Gulf shrimp fishery, but its effects on the fishery are not well known. Prior studies indicate that hypoxia alters the spatial dynamics of shrimp and other species through hab...

This study describes temporal and spatial abundance patterns of echinoderm larvae in La Parguera, Puerto Rico. For the temporal study, larvae were sampled by a series of monthly tows taken with a 64 microm mesh net between the new and full moon from April 2005 to July 2006, September 2006 and August 2007. In order to measure spatial variation of echinoderm larval abundances, oblique tows were t...

Purpose: This study attempts to analyse internal and external factors that favourably lead increased turnover of Online Food Delivery Services offer best strategies can be implemented based on those indicators, select the most effective strategy. Design: The is primary secondary data. Focus group method were employed as data source for IFE EFE analysis followed by TOWS matrix QSPM was obtained ...

Plastic debris has been documented in many marine ecosystems, including remote coastlines, the water column, the deep sea, and subtropical gyres. The North Pacific Subtropical Gyre (NPSG), colloquially called the "Great Pacific Garbage Patch," has been an area of particular scientific and public concern. However, quantitative assessments of the extent and variability of plastic in the NPSG have...

Previous research has hinted on further improvements of the buckling behaviour variable-stiffness laminates by incorporating overlaps, resulting in a variable thickness profile that is non-linearly coupled to steering angles. The present study compares two modelling strategies consider distribution: 1) as-manufactured with discrete thicknesses; and 2) smoothed continuous distribution. created o...