The disease Rhizoctonia leaf and sheath spot (RLSS), caused by zeae Voorhees, is problematic in ultradwarf bermudagrass (UDBG) [Cynodon dactylon (L.) Pers. × C. transvaalensis (Burtt-Davy)] putting greens. Typically, RLSS symptoms are most severe late summer appear as frog-eye patches 10 to 40 cm diameter. In UDBG, often called “mini-ring” because of the small brown rings that produced when pro...

We report both numerical and experimental constructions of a tunnel structure with low-frequency low-reflection bidirectional sound insulation (BSI). The designed was constructed from pair lossy acoustic metasurfaces (AMs), which consists six ultrathin coiled unit cells, attached on sides. Based the generalized Snell?s law phase modulations for AMs, BSI based reflections blind areas created by ...

DOI: Overview he twenty first century has seen a rapid increase in the number of scientists engaging atmospheric research, weather forecasting and climate modeling as academic institutions, worldwide, expand their undergraduate graduate programs environmental sciences. There are many opportunities, such conferences, symposia workshop, for to network, share knowledge interests beyond those that ...

غلاف سوخت‌های هسته‌ای یکی از مهم‌ترین اجزا رآکتور محسوب می‌شود. این غلاف‌ها آلیاژ زیرکونیم ساخته می‌شوند؛ اما خواص ترمومکانیکی چندان مناسبی ندارند؛ لذا در پژوهش سعی شده با تغییر مواد به‌کاررفته NuScale به یک نوترونیکی و مناسب دست پیدا شود. قلب موجب ضریب تکثیر مؤثر طول بازه سوخت‌گذاری می‌گردد. شبیه‌سازی که M5 بهره می‌برد به‌عنوان معیار هم‌­چنین همراه سه نوع دیگر آلیاژهای رایج دو آن FeCrAl است، د...

El transporte es el segundo sector que más dióxido de carbono (CO2) emite a nivel mundial, según datos del año 2012. Este fenómeno se ve potenciado por la expansión física las ciudades, fragmentación urbana y desigualdad en su estructura. Un caso destacado Área Metropolitana Santiago (AMS). En este contexto, objetivo esta investigación determinar los patrones geoespaciales emisión CO2 causados ...

The study investigated student reaction to the alternative mechanics survey (AMS), a modified force concept inventory, which used automatically marked free-response questions and offered limited feedback students after their answers had been submitted. Eight participants were observed in completing AMS, they interviewed gain insight into what observed; resultant data set was analyzed by themati...