Ceramics and other hard-and-brittle materials are very effectively processed by longitudinal-torsional coupled rotary ultrasonic machining (LTC-RUM), which cutting force evolution the effects of processing parameters on material removal mechanism need to be optimized. This study introduced LTC-RUM model zirconia ceramics based brittle mechanism. Firstly, kinematic analysis a single abrasive gra...

The success of machine-learning methods is spreading their use to many different fields. This paper analyses one these methods, the Kernel Logistic Regression (KLR), from point view Random Utility Model (RUM) and proposes KLR specify utilities in RUM, freeing modeler need postulate a functional relation between features. A Monte Carlo simulation study conducted empirically compare with Multinom...

The Isle of Rum, Inner Hebrides, has an impoverished earthworm fauna as the soils are generally acidic and nutrient-poor. Species associated with human habitation are found around deserted crofting settlements subjected to “clearances” in the mid-19th century and at Kinloch, where a large volume of fertile soil was imported from the mainland around 1900. Earthworms, and the dew worm Lumbricus t...

Rotary ultrasonic machining (RUM) is a nontraditional drilling process. It has been used to drill not only brittle but also ductile materials. It was observed that the surface roughness of the drilled hole near the entrance side was better than that near the exit side. However, explanations about this observation could not be found in the literature. This paper aims to provide explanations abou...

The unconvent ional states o f qqqq, q~l and pure gluon type, appearing in BB dual diagrams with nonplanar baryons are discussed, treating their interpolating fields in a conf inement approach to QCD due to Migdal. The mass spect rum is given to lowest order and the quan t um numbers are discussed. It is argued that some of the resonances should have narrow width and hence could be identified w...

Hintergrund: Eine Nahrungsmittelunverträglichkeit kann durch einen verminderten enzymatischen Histaminabbau aufgrund einer verringerten Aktivität der Diaminoxidase (DAO) induziert sein (Histaminintoleranz (HIT)). Zielsetzung: Ziel der vorliegenden Studie war es herauszufinden, ob die DAO-Aktivität im Serum bei Patienten, deren Vorgeschichte eine HIT vermuten lässt, im Vergleich zu Patienten ohn...

A theory of flexibility and rigidity is developed for general infinite bar-joint frameworks (G, p). Determinations of nondeformability through vanishing flexibility are obtained as well as sufficient conditions for deformability. Forms of infinitesimal flexibility are defined in terms of the operator theory of the associated infinite rigidity matrix R(G, p). The matricial symbol function of an ...

Bu çalışmanın temel amacı, I. Dünya Savaşından İzmir’in işgaline kadar olan süreçte Rumların tutum ve davranışlarında meydana gelen değişimler ile Söke kazası çevresinde gerçekleşen Rum faaliyetlerini ortaya koymaktır. Özellikle Söke’nin hemen karşısında yer alan Sisam Adası bu türden faaliyetleri yürüten yuvası haline gelmiştir. Yunanistan adalardan eşkıyalar, yerli çeteleriyle birleşmek suret...