Investigation of the structure and microhardness of Mo-Fe-C coatings obtained by the electron beam injected in the atmosphere

In this work 'Mo-Fe-C' coatings fabricated on medium carbon steel by non-vacuum electron beam cladding were investigated. The structure of coatings and transition zones were studied by scanning electron microscopy (SEM). It was shown that an increase of Fe percentage in the cladding mixture led to a decrease of the eutectic volume fraction in the coating and was accompanied by the formation of the gradient structure between the coating and a substrate material. Measurements of microhardness in the cross section of samples revealed that the cladding of a 'Mo-C powder mixture contributed to a 4.5-fold increase of microhardness

The experience of levetiracetam (keppra) application for the treatment of pain syndromes in oncologic patients on the background of chemotherapy and patients with facial neuralgia

Antiepileptic preparation Levetiracetam (Keppra) possesses minimal medicinal interaction with other drugs which are used for epileptic patients with severe concomitant diseases. We have studied Levetiracepam efficacy in patients with tumours of various localization, with marked pain syndrome generalized after a complex treatment (operative, radiation) on the background of chemotherapy. The second group included the patients with facial neuralgia. Analyzing the results of the preparation application we have determined that Levetiracetam is mostly effective with the dose of 2500-3000mg for 60-65old patients having metastases, with the dose reaching 2000mg per day for 70-80old patients having facial neuralgia.Противоэпилептический препарат леветирацетам (кеппра) обладает минимальным лекарственным взаимодействием с другими препаратами, которые применяются у больных эпилепсией с тяжелыми сопутствующими заболеваниями. Изучена эффективность леветирацетама у пациентов с различной локализацией опухолевого процесса, с выраженным болевым синдромом, генерализовавшимся после проведенного ранее комплексного лечения (оперативное, лучевое) на фоне химиотерапии. Вторую группу составили пациенты с невралгией тройничного нерва. Анализируя результаты применения препарата, установлено, что леветирацетам наиболее эффективен у больных с метастазами в 60-65 лет в дозе - 2500-3000 мг, с НТН в 70-80 лет при достижении дозы 2000 мг в сутки

The peculiarities of designing double-pole drive with the intermediate rolling elements

The paper considers the peculiarities of designing a drive with the intermediate rolling elements and free iron ring with two pitch points. The details of the direct design, by the original parameters of the drive, and the design based on the prescribed center to center distance is shown