137 research outputs found
hamid-shojaei/vesicle-translocation: Initial release for Springer book v0.1
No full textCodes related to the published paper regarding the translocation of the vesicl
Relative solute permeabilities of human aquaporins
No full textAuthor Sahar Shojaei MScMasterarbeit Universität Linz 2022Arbeit gesperr
Common Fixed Point in Cone Metric Space for -contractive
No full textHuang and Zhang cite{Huang} have introduced the concept of cone metric space where the set of real numbers is replaced by an ordered Banach space. Shojaei cite{shojaei} has obtained points of coincidence and common fixed points for s-Contraction mappings which satisfy generalized contractive type conditions in a complete cone metric space.In this paper, the notion of complete cone metric space has been introduced. We have defined -contractive and obtained common fixed point theorem for a mapping which satisfies -contractive
Intuitionistic Hesitant Fuzzy Filters in BE-Algebras
No full textThe notions of hesitant fuzzy filters and hesitant implicative filter was introduced. In this paper, we introduce the notion of intuitionistic hesitant fuzzy filters (IHFF) and intuitionistic hesitant implicative filters (IHIFB) and several properties are investigated. Also, we defined ?-level sets, and we show the relation between IHFF, IHIFF and ?-Level
Root Canal Morphologies of Mesiobuccal Roots of Maxillary Molars using Cone beam Computed Tomography and Periapical Radiographic Techniques in an Iranian Population
No full textABSTRACT
Aim
The aim of this study was to evaluate the accuracy of the results of cone beam computed tomography (CBCT) examinations, confirm the presence or absence of the second mesiobuccal (MB2) root canal in maxillary first and second molars, estimate the distance between the root canal orifices, observe the root types based on Vertucci classification system, and make comparisons between CBCT and periapical techniques in relation to the identification of the root canal form and the second root canal of the MB root.
Materials and methods
The CBCT and periapical radiographic data from the Department of Maxillofacial Radiology were used to select 156 individuals (78 females and 78 males) for the evaluation of the anatomy of maxillary first and second molars.
Results
The prevalence rate of the second root canal in the MB root in the maxillary first molars was 55.1%, with 44.1 and 63.3% in females and males respectively. The prevalence rate in maxillary second molars was 23.7%, with 15.7 and 30.2% in females and males respectively. In addition, the longest and shortest distances between the root canal orifices were 2.4 and 0.3 mm respectively, with a mean of 1.3 mm.
Conclusion
There was a significant difference between the results of periapical and CBCT radiographic techniques in relation to the presence or absence of the second root canal in the MB roots of maxillary first and second molars (p < 0.01), with better results being provided by the CBCT technique.
Clinical significance
The results of CBCT images about the existence of the second root canal in the MB roots of maxillary first and second molars are more reliable, and we can use this technique in the finding of additional canals in the clinic.
How to cite this article
Zand V, Mokhtari H, Zonouzi HRM, Shojaei SN. Root Canal Morphologies of Mesiobuccal Roots of Maxillary Molars using Cone beam Computed Tomography and Periapical Radiographic Techniques in an Iranian Population. J Contemp Dent Pract 2017;18(9):745-749.
</jats:sec
Some Theorem for Common Fixed Point for S-Contraction Mappings in Complete Cone Metric Spaces
No full textIn this paper we introduced complete cone metric spaces and we proved some common fixed point theorems of s- contraction mappings, by using coincidence point and weakly compatible condition two mappings on complete cone metric spaces
Certain subclasses of bi-univalent functions associated with the Aghalary-Ebadian-Wang operator
No full textIn this paper, we introduce and investigate two new subclasses of the functions class of bi-univalent functions defined in the open unit disk, which are associated with the Aghalary-Ebadian-Wang operator. We estimate the coefficients and for functions in these new subclasses. Several consequences of the result are also pointed out
Liquid-based stationary phase for deterministic lateral displacement separation in microfluidics
No full textDeterministic lateral displacement (DLD) is a promising separation scheme in microfluidic systems. In traditional DLD, a periodic array of solid posts induces the separative migration of suspended particles moving through the system. Here, we present a radical departure from traditional DLD systems and use an array of anchored liquid-bridges as the stationary phase in the DLD device. The liquid-bridges are created between two parallel plates and anchored to the bottom one by cylindrical wells. We show that the non-linear particle dynamics observed in traditional DLD systems is also present in the anchored-liquid case, enabling analogous size-based separation of suspended particles. The use of liquid-bridges as the stationary phase presents additional possibilities in separation technologies, potentially eliminating or significantly reducing clogging, enabling renewable and/or reconfigurable systems, allowing a different set of fabrication methods and providing alternative ways to separate particles based on their interaction with liquid–liquid interfaces. Some of these advantages could also extend to filtration methods based on similar liquid-based stationary phases.Peer reviewe
Trace Signal Selection to Enhance Timing and Logic Visibility in Post-Silicon Validation
No full textAbstract—Trace buffer technology allows tracking the values of a few number of state elements inside a chip within a desired time window, which is used to analyze logic errors during post-silicon validation. Due to limitation in the bandwidth of trace buffers, only few state elements can be selected for tracing. In this work we first propose two improvements to existing “signal selection ” algorithms to further increase the logic restorability inside the chip. In addition, we observe that different selections of trace signals can result in the same quality, measured as a logic visibility metric. Based on this observation, we propose a procedure which biases the selection to increase the restorability of a desired set of critical state elements, without sacrificing the (overall) logic visibility. We propose to select the critical state elements to increase the “timing visibility ” inside the chip to facilitate the debugging of timing errors which are perhaps the most challenging type of error to debug at the post-silicon stage. Specifically, we introduce a case when the critical state elements are selected to track the transient fluctuations in the power delivery network which can cause significant variations in the delays of the speedpaths in the circuit in nanometer technologies. This paper proposes to use the trace buffer technology to increase the timing visibility inside the chip, without sacrificing the logic visibility. I
Input-output feedback linearization control of a tractor with n-trailers mechanism considering the path curvature
No full textIn this paper, an observer-based proportional-integral-derivative (PID) controller is proposed for an autonomous tractor with n-trailer units with prescribed transient and steady-state performances by compensating the negative effect of the path curvature during the turning of the trailers. The control objective is to place the position of the last trailer on a desired trajectory without any deviation in the course of its turning. Since the curvature of the trajectory causes a remarkable unwanted deviation of the trailers’ positions from the path, an input-output model is derived for the tractor with n-trailers based on the extended look-ahead control concept which employs a corrective angle to compensate the path curvature. A nonlinear transformation is employed to transform constrained errors into unconstrained ones and to obtain an open-loop error dynamic model in terms of the unconstrained errors. Then, a neural network adaptive PID output-feedback linearization-based controller is proposed to force the tracking errors to the zero neighbourhood with a guaranteed prescribed performance with preferable overshoot/undershoot, convergence speed and final tracking accuracy. The Kalman–Yakobovich (KY) lemma is employed to prove the closed-loop stability of the observer-controller system strongly. Numerical simulations are given to show the controller’s effectiveness in practice.</p
- …
