Abstract Background The present study was conducted to evaluate the efficacy of some eco-friendly management modules based on plant oils and Metarhizium anisopliae against a biennial white grub species, Lepidiota mansueta Burmeister (Coleoptera: Scarabaeidae) infesting potato crop in farmer’s field at Majuli river island, Assam, India. Results Amongst all evaluated L. grubs, pooled analysis two...

personal samplers or in general blunt body samplers are widely used in occupational hygiene for collecting air contaminants in the work environments. this work is part of an ongoing research into the performance evaluation of personal samplers, particularly in terms of their aerodynamic properties. velocity profiles have been measured around and within typical cylindrical sampling devices, plac...

The paper deals with a simplified approach to evaluate the frequency of damage low voltage apparatus powered by in housing HV/LV transformer against overvoltages due nearby lightning flashes (source S4 according IEC 62,305 standard). is based on computer simulations validated models current state art. evaluates: stressing lightning-induced over-voltages supplying HV overhead line; transferred c...

The roles of electrical energy no longer need to be demonstrated since the industrial revolution 1740 based on use new sources energy, which is considered one greatest revolutions in world. Despite this, we must note that changing habits human activity and, hand, has consequences its transport, large quantities are transmitted by power lines, forcing them operate more and more. within their lim...

ABSTRAKBahaya tegangan sentuh bisa terjadi apabila manusia menyentuh bagian yang bertegangan secara langsung maupun tidak langsung. Sentuhan aktif, sedangkan sentuhan bila konduktif terbuka (BKT) dari peralatan karena adanya arus bocor. Manusia tentunya tahu bahwa aktif BKT tersebut dan sengaja sengaja. Oleh itu perlu proteksi terhadap Proteksi biasa digunakan pada instalasi listrik adalah ELCB...