Energy efficient privacy preserved data gathering in wireless sensor networks having multiple sinks

Wireless sensor networks (WSNs) generally have a many-to-one structure so that event information flows from sensors to a unique sink. In recent WSN applications, many-tomany structures are evolved due to need for conveying collected event information to multiple sinks at the same time. This study proposes an anonymity method bases on k-anonymity for preventing record disclosure of collected event information in WSNs. Proposed method takes the anonymity requirements of multiple sinks into consideration by providing different levels of privacy for each destination sink. Attributes, which may identify of an event owner, are generalized or encrypted in order to meet the different anonymity requirements of sinks. Privacy guaranteed event information can be multicasted to all sinks instead of sending to each sink one by one. Since minimization of energy consumption is an important design criteria for WSNs, our method enables us to multicast the same event information to multiple sinks and reduce energy consumption

On the hyperbolic Horadam matrix functions

In this study, we introduce a new class of the hyperbolic matrix functions which are called symmetrical hyperbolic Horadam sine and cosine matrix functions and we present some hyperbolic and recursive properties of these new matrix functions. In addition, we introduce quasi-sine Horadam matrix function and also define the matrix form of the metallic shofars that related to the hyperbolic Horadam sine and hyperbolic Horadam cosine matrix functions

Eksenel Yüklemeye Maruz Değişken Kesitli Euler-Bernoulli Kirişinin Üstel Matris Yöntemi İle Enine Titreşim Analizi

Konferans Bildirisi -- Teorik ve Uygulamalı Mekanik Türk Milli Komitesi, 2013Conference Paper -- Theoretical and Applied Mechanical Turkish National Committee, 2013Bu çalışmada eksenel yüklemeye maruz kirişin enine titreşim denklemi olan yüksek mertebeden değişken katsayılı lineer diferansiyel denklemin üstel matris yöntemiyle çözümü sunulmuştur. Bu yöntemde temel olarak, üstel fonksiyonlar ve türevlerinin matris formları inşa edilmiş ve matris formlarının toplamlarına sıralama noktaları uygulanarak temel matris denklemi elde edilmiştir. Elde edilen bu matris denklemi cebirsel lineer denklem sistemine karşılık gelmektedir. Bu denklem sistemi temel matris işlemleri ile çözülmüştür. Elde edilen yaklaşık çözümlerin artık ve mutlak hataları incelenmiştir. Yöntemin etkinliğini gösterebilmek için birkaç sayısal problem örnek olarak ele alınmıştır.This paper presents an exponential matrix method for the solution of transverse vibration of a beam subjected to an axial compressive load of , governed by the high order linear differential equation with variable coefficients. The problem is considered with the mixed conditions. In this method, the matrix forms of exponential functions and their derivatives are constructed basically and then the fundamental matrix equation is formed by the use of collocation points. This matrix equation corresponds to a system of linear algebraic equations and it is solved by basic matrix operations. The residual and absolute errors of the approximate solution are investigated. Some numerical examples are given to demonstrate the efficiency of the method

Hybrinomials related to hyper-Leonardo numbers

In this paper, we define hybrinomials related to hyper-Leonardo numbers. We study some of their properties such as the recurrence relation and summation formulas. In addition, we introduce hybrid hyper Leonardo numbers

Classification of confidential documents by using adaptive neurofuzzy inference systems

AbstractDetecting the security level of a confidential document is a vital task for organizations to protect the confidential information encapsulated in. Diverse classification rules and techniques are being applied by human experts. Increasing number of confidential information in organizations are making difficult to classify all the documents carefully with human effort. A hybrid approach involving support vector classifier and adaptive neuro-fuzzy classifier is proposed in this study. Also states preprocessing tasks required for document classification with natural language processing. To represent term-document relations a recommended metric TF-IDF was chosen to construct a weight matrix. Agglutinative nature of Turkish documents is handled by Turkish stemming algorithms. At the end of the article some experimental results and success metrics are projected with accuracy rates

An Anatomic Study of the Supratrochlear Foramen of the Humerus and Review of the Literature

Objective: The coronoid fossa and the olecranon fossa located on the distal end of the humerus are separated by a thin bone septum. This septum may be translucent or opaque. In some cases, this septum may become perforated, and it is called supratrochlear foramen. The aim of the present study was to describe the morphology of the supratrochlear foramen of the humerus. Methods: This study was conducted on 108 dry humeri (right (R): 56, left (L): 52) belonging to adults whose age, gender, and racial properties are unknown. They were examined to determine the presence of the supratrochlear foramen. The shapes of the supratrochlear foramen were determined, and their diameters were measured. Results: The supratrochlear foramen was observed in 11 cases on the right side and 11 cases on the left side. On the right side, 5 foramens were detected to be round-shaped, 3 oval-shaped, and 3 kidney-shaped, whereas on the left side, 6 foramens were detected to be oval-shaped and 5 round-shaped. Of the 86 dry humeri with no supratrochlear foramen, 57 (R: 30, L: 27) had a translucent septum, and 29 (R: 15, L: 14) had an opaque septum. Conclusion: It is apparent that the supratrochlear foramen has been evaluated on bones generally in the literature, and there are differences in incidence rates. Owing to the clinical significance of this formation, it is thought that studying on a wider population of living individuals using radiologic imaging methods will contribute to the literature. In addition, although there are different terms used to express this formation in the literature, it is thought that adopting the name, which is commonly used as supratrochlear foramen, is most appropriate

Anatomy of spinal nerves in the first Turkish illustrated anatomy handwritten textbook

“Teşrih-ül Ebdan ve Tercümânı Kıbale-i Feylesûfan” is the first handwritten anatomy textbook with illustrations written in Turkish in 17th century by Şemseddîn-i İtâḳî. “Teşrih” has different meanings such as anatomy, skeleton, and cutting a corpse into pieces [1]. “Teşrih-ül Ebdan ve Tercümânı Kıbale-i Feylesûfan ” means dissection of the body and scholars’ birth knowledge [2]. Since this is the first handwritten textbook in Turkish, it has great importance in the development of medicine in Ottoman Empire. This book was written while Grand Vizier Recep Pasha was in power, and it was dedicated to the Sultan of that period, Murat the IVth [3, 4]. It is thought that the book was written in 163

Inferring phylogenetical tree by using hierarchical self organizing maps

Ankara : The Department of Computer Engineering and Institute of Engineering and Sciences of Bilkent Univ., 2002.Thesis (Master's) -- Bilkent University, 2002.Includes bibliographical references leaves 57-58.In biology, inferring phylogenetical tree is an attempt to describe the evolutionary history of today’s species with the aim of finding their common ancestors. Specifically in molecular biology, it is used in understanding the evolution relationships between proteins or DNA sequences. Inferring phylogenetical tree can be a very complicated task since even for the input data having thirty sequences, the best tree must be chosen among 1036 possible trees. In order to find the best one in a reasonable time, various hierarchical clustering techniques exist in the literature. On the other side, it is known that Self Organizing Maps (SOM) are very successful in mapping higher dimensional inputs to two dimensional output spaces (maps) without having any priori information about input patterns. In this study, SOM are used iteratively for tree inference. Two different algorithms are proposed. First one is hierarchical top-down SOM method which constructs the tree from the root to the leaves. Second one uses a bottom-up approach that infers the tree from the leaves to the root. The efficiency of Hierarchical SOM is tested in terms of tree topology. Hierarchical SOM gives better results than the most popular phylogeny methods, UPGMA and Neighbor-joining. Also this study covers possible solutions for branch length estimation problem.Bahşi, HayretdinM.S

Morphometric evaluation and surgical implications of the infraorbital groove, canal and foramen on cone-beam computed tomography and a review of literature

Background: The purpose of this study is to evaluate the anatomy, morphometry, and variations of infraorbital groove (IOG), infraorbital canal (IOC) and infraorbital foramen (IOF) on the cone-beam computed tomography (CBCT) images and to investigate their relations with surrounding structures.  Methods: IOG, IOC and IOF were evaluated retrospectively in CBCT images of 75 female (F) and 75 male (M) cases with a range of 18–65 years (F: 37.62 ± ± 13.55, M: 37.53 ± 15.87) by Planmeca Romexis programme. IOG, IOC and IOF were examined bilaterally (300 sides) in the cases. The 13 parameters were measured on these images in axial, sagittal and coronal planes.  Results: There was a very weak positive correlation between the age and the angle between IOC and IOG (p = 0.015, r = 0.198), there was a weak positive correlation between the age and skin thickness (p = 0.001, r = 0.281), and there was no correlation between the age and other parameters. A total of 21 (7%) IOCs were detected in maxillary sinus, bilaterally in 6 cases and unilaterally in 9 cases (5 on the left, 4 on the right). In 1 case, bilaterally, IOC was separated 2 canals while running anteriorly in the maxillary sinus. The larger one was directed to IOF in its normal course and the smaller one was directed to lateral wall of nasal cavity and opened to the inferior nasal meatus in front of the opening of nasolacrimal duct.  Conclusions: We suggest that the parameters found in the present study may facilitate prediction of the location of the infraorbital nerve. Knowledge of this exact position in relation to easily measurable parameters may decrease the risk of infraorbital nerve injury during surgical approaches directed to this region and might serve as a guide during local anaesthetic interventions for dentistry, ophthalmology, plastic surgery, rhinology, neurosurgery and dermatology.