首页 > 最新文献

Anadolu University Journal of Science and Technology-A Applied Sciences and Engineering最新文献

英文 中文
ON HYBRID CURVES 在混合曲线上
Mücahit AKBIYIK
In this paper, we first define the vector product in a special analog Minkowski Geometry $(mathbb{R}^3,langle,rangle) $ which is identified with the space of spatial hybrids. Next, we derive the Frenet-Serret frame formulae for a three dimensional non-parabolic curve by using the spatial hybrids and the vector product. However, we present the Frenet-Serret Frame formulae of a non-lightlike hybrid curve in $mathbb{R}^4$ and an illustrative example for all theorems of the paper with Matlab codes.
在本文中,我们首先定义了一种特殊的模拟Minkowski几何$(mathbb{R}^3,langle,rangle) $中的向量积,该向量积被识别为空间杂化空间。其次,我们利用空间杂化和矢量积导出了三维非抛物曲线的Frenet-Serret框架公式。然而,我们在$mathbb{R}^4$中给出了非类光混合曲线的Frenet-Serret Frame公式,并用Matlab代码给出了本文所有定理的示例。
{"title":"ON HYBRID CURVES","authors":"Mücahit AKBIYIK","doi":"10.30931/jetas.1338660","DOIUrl":"https://doi.org/10.30931/jetas.1338660","url":null,"abstract":"In this paper, we first define the vector product in a special analog Minkowski Geometry $(mathbb{R}^3,langle,rangle) $ which is identified with the space of spatial hybrids. Next, we derive the Frenet-Serret frame formulae for a three dimensional non-parabolic curve by using the spatial hybrids and the vector product. However, we present the Frenet-Serret Frame formulae of a non-lightlike hybrid curve in $mathbb{R}^4$ and an illustrative example for all theorems of the paper with Matlab codes.","PeriodicalId":7757,"journal":{"name":"Anadolu University Journal of Science and Technology-A Applied Sciences and Engineering","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135831090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Robust Adaptive Control Based on Incremental Nonlinear Dynamic Inversion for a Quadrotor in Presence of Partial Actuator Fault 基于增量非线性动态反演的四旋翼飞行器部分执行器故障鲁棒自适应控制
Karim AHMADİ DASTGERDİ, D. Asadi, Seyed Yaser NABAVİ CHASHMİ, Önder Tutsoy
In this paper, a nonlinear robust adaptive trajectory tracking control architecture based on Incremental Nonlinear Dynamic Inversion (INDI) is introduced to stabilize and control a quadrotor in presence of actuator partial fault. In a novel approach, a three-loop cascade architecture of the controller is proposed. The INDI algorithm is applied as the baseline controller in the inner-loop and a nonlinear model reference adaptive controller is augmented in the outer-loop to provide robustness for the unmodeled fault in the inner-loop. In the proposed control strategy, a modified PID controller is introduced in the most outer-loop for tracking the desired path. The fault effect has been modeled by considering the sudden variations of motor thrust and torques. To increase the robustness of the control algorithm the projection operator has been applied in the robust adaptive structure. The performance of the proposed controller is compared with a previous successful algorithm, which had been implemented on a quadrotor model. The results demonstrate that the proposed controller can provide full controllability of the desired faulty quadrotor in pitch, roll, and yaw channels in presence of partial fault of actuator up to 50%.
提出了一种基于增量非线性动态反演(INDI)的非线性鲁棒自适应轨迹跟踪控制体系,用于四旋翼飞行器在执行器局部故障情况下的稳定控制。在一种新颖的方法中,提出了一种三环级联结构的控制器。内环采用INDI算法作为基准控制器,外环增加非线性模型参考自适应控制器,为内环未建模故障提供鲁棒性。在所提出的控制策略中,在最外环中引入一个改进的PID控制器来跟踪期望的路径。考虑了电动机推力和转矩的突然变化,对故障效应进行了建模。为了提高控制算法的鲁棒性,在鲁棒自适应结构中引入了投影算子。将所提出的控制器的性能与先前在四旋翼模型上成功实现的算法进行了比较。结果表明,在执行器部分故障高达50%的情况下,所提出的控制器可以在俯仰、横滚和偏航通道上提供所需故障四旋翼的完全可控性。
{"title":"Robust Adaptive Control Based on Incremental Nonlinear Dynamic Inversion for a Quadrotor in Presence of Partial Actuator Fault","authors":"Karim AHMADİ DASTGERDİ, D. Asadi, Seyed Yaser NABAVİ CHASHMİ, Önder Tutsoy","doi":"10.30931/jetas.1169518","DOIUrl":"https://doi.org/10.30931/jetas.1169518","url":null,"abstract":"In this paper, a nonlinear robust adaptive trajectory tracking control architecture based on Incremental Nonlinear Dynamic Inversion (INDI) is introduced to stabilize and control a quadrotor in presence of actuator partial fault. In a novel approach, a three-loop cascade architecture of the controller is proposed. The INDI algorithm is applied as the baseline controller in the inner-loop and a nonlinear model reference adaptive controller is augmented in the outer-loop to provide robustness for the unmodeled fault in the inner-loop. In the proposed control strategy, a modified PID controller is introduced in the most outer-loop for tracking the desired path. The fault effect has been modeled by considering the sudden variations of motor thrust and torques. To increase the robustness of the control algorithm the projection operator has been applied in the robust adaptive structure. The performance of the proposed controller is compared with a previous successful algorithm, which had been implemented on a quadrotor model. The results demonstrate that the proposed controller can provide full controllability of the desired faulty quadrotor in pitch, roll, and yaw channels in presence of partial fault of actuator up to 50%.","PeriodicalId":7757,"journal":{"name":"Anadolu University Journal of Science and Technology-A Applied Sciences and Engineering","volume":"107 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85510252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
THE ADSORPTION PERFORMANCE and CHARACTERIZATION of THE ACTIVATED CARBON PRODUCED FROM PEPPER STALKS 辣椒秸秆活性炭的吸附性能及表征
H. Dolaş
This study presented the evaluation of the adsorption of Eriochrome Black T (EBT) on the activated carbon (trH-BS) produced from pepper stalk by activating with 50% phosphoric acid solution (H3PO4) and then by carbonizing at 650 oC for 30 min. in atmosphere of nitrogen (N2) was presented. The isotherm of trH-BS was Type IV, representing micro, meso and macroporous structures. The micropore volume and micropore surface area values of trH-BS were 0.39 cc/g and 1107.294 m2/g, respectively. Also, its meso and macropores had a volume of about 15-17 cc/g and an average surface area of 400 m2/g. The adsorption energy was 18.156 kJ/mol and the BET surface area was 756.257 m2/g. The structure of trH-BS was clarified structurally and morphologically and the formations like nano rod were seen at Scanning Electron Microscopy (SEM) images. By using trH-BS, the adsorption of EBT from the aqueous medium was investigated using 5 different parameters. As a result, it was found that the adsorbents obtained from pepper stalks are suitable for use in EBT adsorption with a ratio of about 50% under suitable conditions.
采用50%磷酸(H3PO4)活化后,在氮气(N2)气氛下于650℃下炭化30 min,考察了Eriochrome Black T (EBT)对辣椒秸秆活性炭的吸附性能。trH-BS等温线为IV型,分别代表微孔、介孔和大孔结构。trH-BS的微孔体积和微孔表面积分别为0.39 cc/g和1107.294 m2/g。中孔和大孔的体积约为15 ~ 17 cc/g,平均表面积为400 m2/g。吸附能为18.156 kJ/mol, BET表面积为756.257 m2/g。通过扫描电镜(SEM)对trH-BS的结构和形态进行了澄清,并观察到纳米棒状结构。采用trH-BS,研究了5种不同参数对EBT的吸附效果。实验结果表明,在适宜的条件下,辣椒秸秆吸附剂的吸附比约为50%,可用于EBT吸附。
{"title":"THE ADSORPTION PERFORMANCE and CHARACTERIZATION of THE ACTIVATED CARBON PRODUCED FROM PEPPER STALKS","authors":"H. Dolaş","doi":"10.30931/jetas.1145856","DOIUrl":"https://doi.org/10.30931/jetas.1145856","url":null,"abstract":"This study presented the evaluation of the adsorption of Eriochrome Black T (EBT) on the activated carbon (trH-BS) produced from pepper stalk by activating with 50% phosphoric acid solution (H3PO4) and then by carbonizing at 650 oC for 30 min. in atmosphere of nitrogen (N2) was presented. The isotherm of trH-BS was Type IV, representing micro, meso and macroporous structures. The micropore volume and micropore surface area values of trH-BS were 0.39 cc/g and 1107.294 m2/g, respectively. Also, its meso and macropores had a volume of about 15-17 cc/g and an average surface area of 400 m2/g. The adsorption energy was 18.156 kJ/mol and the BET surface area was 756.257 m2/g. The structure of trH-BS was clarified structurally and morphologically and the formations like nano rod were seen at Scanning Electron Microscopy (SEM) images. By using trH-BS, the adsorption of EBT from the aqueous medium was investigated using 5 different parameters. As a result, it was found that the adsorbents obtained from pepper stalks are suitable for use in EBT adsorption with a ratio of about 50% under suitable conditions.","PeriodicalId":7757,"journal":{"name":"Anadolu University Journal of Science and Technology-A Applied Sciences and Engineering","volume":"61 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87180491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A COMPARATIVE ANALYSIS OF ENSEMBLE LEARNING METHODS ON SOCIAL MEDIA ACCOUNT DETECTION 集成学习方法在社交媒体账户检测中的比较分析
Tuğba TUNÇ ABUBAKAR, Merve Varol Arısoy
Social media has become an integral part of our world including private and work life. However, the rapid expansion and popularity of social media have resulted in the emergence of fake accounts. Fake accounts users often engage in misbehavior such as malicious activities, spread misinformation etc. The aim of this study is to perform an effective fake account detection by using ensemble learning methods (Bagging, Boosting, Stacking, Voting and Blending) in detecting fake social media accounts. The techniques are combined with various machine learning algorithms to measure their effectiveness in detecting fake accounts. The experimental results suggest that Bagging technique attains an accuracy level of 90.441%, Stacking technique attains 89.706%, Voting technique attains 88.971% and the Blending technique attains 88.235% in the test phase. While for the Boosting methods, XGboost technique attains accuracy level of 86.765%, whereas the AdaBoost outperforms it with an accuracy level of 91.912% in the test phase. The extant results denote that ensemble methods and their algorithms are effective and efficient in detecting fake social media accounts. Additional studies with larger datasets alongside the usage of different ensemble methods can further improve the accuracy of the detection process.
社交媒体已经成为我们生活和工作中不可或缺的一部分。然而,社交媒体的迅速扩张和普及导致了虚假账户的出现。虚假账户用户经常从事恶意活动、传播错误信息等不当行为。本研究的目的是通过使用集成学习方法(Bagging, Boosting, Stacking, Voting和Blending)来检测虚假社交媒体账户,从而进行有效的虚假账户检测。这些技术与各种机器学习算法相结合,以衡量它们在检测虚假账户方面的有效性。实验结果表明,在测试阶段,Bagging技术的准确率为90.441%,Stacking技术的准确率为89.706%,Voting技术的准确率为88.971%,Blending技术的准确率为88.235%。在boost方法中,XGboost技术在测试阶段达到了86.765%的精度水平,而AdaBoost在测试阶段达到了91.912%的精度水平。现有的结果表明,集成方法及其算法在检测虚假社交媒体账户方面是有效的。使用更大的数据集进行额外的研究以及使用不同的集成方法可以进一步提高检测过程的准确性。
{"title":"A COMPARATIVE ANALYSIS OF ENSEMBLE LEARNING METHODS ON SOCIAL MEDIA ACCOUNT DETECTION","authors":"Tuğba TUNÇ ABUBAKAR, Merve Varol Arısoy","doi":"10.30931/jetas.1325483","DOIUrl":"https://doi.org/10.30931/jetas.1325483","url":null,"abstract":"Social media has become an integral part of our world including private and work life. However, the rapid expansion and popularity of social media have resulted in the emergence of fake accounts. Fake accounts users often engage in misbehavior such as malicious activities, spread misinformation etc. The aim of this study is to perform an effective fake account detection by using ensemble learning methods (Bagging, Boosting, Stacking, Voting and Blending) in detecting fake social media accounts. The techniques are combined with various machine learning algorithms to measure their effectiveness in detecting fake accounts. The experimental results suggest that Bagging technique attains an accuracy level of 90.441%, Stacking technique attains 89.706%, Voting technique attains 88.971% and the Blending technique attains 88.235% in the test phase. While for the Boosting methods, XGboost technique attains accuracy level of 86.765%, whereas the AdaBoost outperforms it with an accuracy level of 91.912% in the test phase. The extant results denote that ensemble methods and their algorithms are effective and efficient in detecting fake social media accounts. Additional studies with larger datasets alongside the usage of different ensemble methods can further improve the accuracy of the detection process.","PeriodicalId":7757,"journal":{"name":"Anadolu University Journal of Science and Technology-A Applied Sciences and Engineering","volume":"27 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76823317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Streamlining Square Root Matrix Function Computation with Restarted Heavy Ball Algorithm 重新启动重球算法简化平方根矩阵函数计算
G. Karaduman
This research proposes a new efficient algorithm for calculating the square root function of the large-scale nonsingular sparse matrix by restarting the Heavy Ball Algorithm. The square root matrix function is critical in various applications, including signal processing, image processing, and machine learning. However, its computation is challenging due to existing methods' high computational complexity and numerical instability. The restarted Heavy Ball Algorithm provides a streamlined and efficient approach for computing the square root matrix function. The approach demonstrates its effectiveness through numerical experiments on various matrices, showing its superior performance compared to existing state-of-the-art methods. Numerical results show that the restarted Heavy Ball algorithm is feasible and effective for calculating the square root function.
本文提出了一种新的计算大规模非奇异稀疏矩阵平方根函数的高效算法。平方根矩阵函数在各种应用中都是至关重要的,包括信号处理、图像处理和机器学习。然而,由于现有方法的高计算复杂度和数值不稳定性,其计算具有挑战性。重新启动的重球算法为计算平方根矩阵函数提供了一种精简高效的方法。通过对各种矩阵的数值实验证明了该方法的有效性,与现有的先进方法相比,显示了其优越的性能。数值结果表明,重新启动的重球算法对于计算平方根函数是可行和有效的。
{"title":"Streamlining Square Root Matrix Function Computation with Restarted Heavy Ball Algorithm","authors":"G. Karaduman","doi":"10.30931/jetas.1298099","DOIUrl":"https://doi.org/10.30931/jetas.1298099","url":null,"abstract":"This research proposes a new efficient algorithm for calculating the square root function of the large-scale nonsingular sparse matrix by restarting the Heavy Ball Algorithm. The square root matrix function is critical in various applications, including signal processing, image processing, and machine learning. However, its computation is challenging due to existing methods' high computational complexity and numerical instability. The restarted Heavy Ball Algorithm provides a streamlined and efficient approach for computing the square root matrix function. The approach demonstrates its effectiveness through numerical experiments on various matrices, showing its superior performance compared to existing state-of-the-art methods. Numerical results show that the restarted Heavy Ball algorithm is feasible and effective for calculating the square root function.","PeriodicalId":7757,"journal":{"name":"Anadolu University Journal of Science and Technology-A Applied Sciences and Engineering","volume":"151 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75841015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Multiplicative Optimal Control Problem 乘法最优控制问题
E. Rentsen, Bayartugs Tamjav, Ulziibayar Vandandoo
In this paper, we consider a multiplicative optimal control problem subject to a system of linear differential equation.It has been shown that product of two concave functions defined positively over a feasible set is quasiconcave. It allows us to consider the original problem from a view point of quasiconvex maximization theory and algorithm. Global optimality conditions use level set of the objective function and convex programming as subproblem. The objective function is product of two concave functions. We consider minimization of the objective functional. The problem is nonconvex optimal control and application of Pontriyagin’s principle does not always guarantee finding a global optimal control. Based on global optimality conditions, we develop an algorithm for solving the minimization problem globally.
本文研究一类线性微分方程系统的乘法最优控制问题。证明了在可行集上正定义的两个凹函数的积是拟凹的。它允许我们从拟凸最大化理论和算法的角度来考虑原问题。全局最优性条件使用目标函数的水平集和凸规划作为子问题。目标函数是两个凹函数的乘积。我们考虑目标泛函的最小化。该问题是一个非凸最优控制问题,使用Pontriyagin原理并不能保证找到全局最优控制。基于全局最优性条件,提出了一种求解全局最小化问题的算法。
{"title":"Multiplicative Optimal Control Problem","authors":"E. Rentsen, Bayartugs Tamjav, Ulziibayar Vandandoo","doi":"10.5564/jasea.v4i1.2684","DOIUrl":"https://doi.org/10.5564/jasea.v4i1.2684","url":null,"abstract":"In this paper, we consider a multiplicative optimal control problem subject to a system of linear differential equation.It has been shown that product of two concave functions defined positively over a feasible set is quasiconcave. It allows us to consider the original problem from a view point of quasiconvex maximization theory and algorithm. Global optimality conditions use level set of the objective function and convex programming as subproblem. The objective function is product of two concave functions. We consider minimization of the objective functional. The problem is nonconvex optimal control and application of Pontriyagin’s principle does not always guarantee finding a global optimal control. Based on global optimality conditions, we develop an algorithm for solving the minimization problem globally.","PeriodicalId":7757,"journal":{"name":"Anadolu University Journal of Science and Technology-A Applied Sciences and Engineering","volume":"49 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80794322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
One weight codes over the ring F_q[v]/(v^s-v) 一个权码在环上F_q[v]/(v^s-v)
In this study, we obtain one-Lee weight codes over a class of nonchain rings and study their structures. We give an explicit construction for one-Lee weight codes. A method to derive more one-Lee weight codes from given a one-Lee weight code is also represented. By defining and making use of a distance-preserving Gray map, we get a family of optimal one-Hamming weight codes over finite fields.
本文研究了一类非链环上的1 - lee权码,并研究了它们的结构。给出了一李权码的显式构造。给出了一种从给定一李权码派生出更多一李权码的方法。通过定义和利用距离保持的灰色映射,我们得到了有限域上最优的一汉明权码族。
{"title":"One weight codes over the ring F_q[v]/(v^s-v)","authors":"","doi":"10.30931/jetas.1152408","DOIUrl":"https://doi.org/10.30931/jetas.1152408","url":null,"abstract":"In this study, we obtain one-Lee weight codes over a class of nonchain rings and study their structures. \u0000We give an explicit construction for one-Lee weight codes. A method to derive more one-Lee weight codes from given a one-Lee weight code is also represented. By defining and making use of a distance-preserving Gray map, we get a family of optimal one-Hamming weight codes over finite fields.","PeriodicalId":7757,"journal":{"name":"Anadolu University Journal of Science and Technology-A Applied Sciences and Engineering","volume":"72 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88117515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
OCCUPATIONAL RADIATION DOSE OF PERSONAL IN PEDIATRIC INTERVENTIONAL CARDIOLOGY 儿童介入心脏病学中个人职业辐射剂量的研究
Kevser HIŞIROĞLU AYAR, E. Kam, D. Yaşar
This study aimed to determine the effective doses of the cardiologist, nurses, and technical staff in the pediatric angiography laboratory during their diagnostic and therapeutic applications. This study is also to compare the radiation dose in the applications performed in the country with the effective doses exposed on a world scale. A total of 39 coronary angiography(CA)+percutaneous transluminal angioplasty(PTCA) methods were performed in the pediatric angiography laboratory during the study. The radiation dose received for each person in a single application was determined, and the total dose values were measured in the sequential applications. If the annual workload is taken into consideration, it is calculated that the person with a high workload may be exposed to a dose of 1384.7 μSv per year. Furthermore, from the total effective dose values, the doses per procedure were calculated to be in the range of 6.5 to 11.1 μSv. These results are consistent with the literature.
本研究旨在确定儿科血管造影实验室的心脏病专家、护士和技术人员在诊断和治疗应用过程中的有效剂量。这项研究还将比较在该国进行的应用中的辐射剂量与在世界范围内暴露的有效剂量。在研究期间,在儿科血管造影实验室共进行了39例冠状动脉造影(CA)+经皮腔内血管成形术(PTCA)。测定了每个人在一次照射中接受的辐射剂量,并在连续照射中测量了总剂量值。如果考虑到年工作量,计算出工作量大的人每年可能受到的剂量为1384.7 μSv。根据总有效剂量值,计算出每道工序的剂量在6.5 ~ 11.1 μSv之间。这些结果与文献一致。
{"title":"OCCUPATIONAL RADIATION DOSE OF PERSONAL IN PEDIATRIC INTERVENTIONAL CARDIOLOGY","authors":"Kevser HIŞIROĞLU AYAR, E. Kam, D. Yaşar","doi":"10.30931/jetas.1147340","DOIUrl":"https://doi.org/10.30931/jetas.1147340","url":null,"abstract":"This study aimed to determine the effective doses of the cardiologist, nurses, and technical staff in the pediatric angiography laboratory during their diagnostic and therapeutic applications. This study is also to compare the radiation dose in the applications performed in the country with the effective doses exposed on a world scale. A total of 39 coronary angiography(CA)+percutaneous transluminal angioplasty(PTCA) methods were performed in the pediatric angiography laboratory during the study. The radiation dose received for each person in a single application was determined, and the total dose values were measured in the sequential applications. If the annual workload is taken into consideration, it is calculated that the person with a high workload may be exposed to a dose of 1384.7 μSv per year. Furthermore, from the total effective dose values, the doses per procedure were calculated to be in the range of 6.5 to 11.1 μSv. These results are consistent with the literature.","PeriodicalId":7757,"journal":{"name":"Anadolu University Journal of Science and Technology-A Applied Sciences and Engineering","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78484831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Eksenel Hidrostatik Yatak Tasarımı için Analitik Model ve Tasarım Parametrelerinin CYM ile Değerlendirilmesi
Zekeriya Parlak, Seçkin Çelebi̇, Gürkan Topbaş
Hidrostatik yataklar, yüksek basınçlı ve nispeten ince yağ filmleri sayesinde, yüksek sönümleme, rijitlik ve yük kapasitesi gibi avantajlarının yanında son derece düşük hareket hataları potansiyeline sahiptir. Genellikle boyutsal ve geometrik toleranslar son derece yüksek hassas olduğundan birçok makine üreticisi de kendi hidrostatik yatak sistemlerini tasarlamayı ve üretmeyi tercih etmektedirler. Bu makalenin amacı, bir eksenel hidrostatik yatağın performansını değerlendirebilecek ve yatak tasarımına yardımcı olabilecek bir analitik modeli gerçekleştirmektir. Böylece hidrostatik yatak geometrilerinin yük kapasitesi, gerekli debi, rijitlik, ve güç tüketimi için hesaplamaları yapılabilecektir. Aynı zamanda performans üzerinde etkili olan tasarım parametrelerinin cevap yüzeyi yöntemi (CYM) kullanılarak bir değerlendirilmesi de yapılarak optimal tasarımlar elde edilecektir.
{"title":"Eksenel Hidrostatik Yatak Tasarımı için Analitik Model ve Tasarım Parametrelerinin CYM ile Değerlendirilmesi","authors":"Zekeriya Parlak, Seçkin Çelebi̇, Gürkan Topbaş","doi":"10.30931/jetas.1116435","DOIUrl":"https://doi.org/10.30931/jetas.1116435","url":null,"abstract":"Hidrostatik yataklar, yüksek basınçlı ve nispeten ince yağ filmleri sayesinde, yüksek sönümleme, rijitlik ve yük kapasitesi gibi avantajlarının yanında son derece düşük hareket hataları potansiyeline sahiptir. Genellikle boyutsal ve geometrik toleranslar son derece yüksek hassas olduğundan birçok makine üreticisi de kendi hidrostatik yatak sistemlerini tasarlamayı ve üretmeyi tercih etmektedirler. Bu makalenin amacı, bir eksenel hidrostatik yatağın performansını değerlendirebilecek ve yatak tasarımına yardımcı olabilecek bir analitik modeli gerçekleştirmektir. Böylece hidrostatik yatak geometrilerinin yük kapasitesi, gerekli debi, rijitlik, ve güç tüketimi için hesaplamaları yapılabilecektir. Aynı zamanda performans üzerinde etkili olan tasarım parametrelerinin cevap yüzeyi yöntemi (CYM) kullanılarak bir değerlendirilmesi de yapılarak optimal tasarımlar elde edilecektir.","PeriodicalId":7757,"journal":{"name":"Anadolu University Journal of Science and Technology-A Applied Sciences and Engineering","volume":"80 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87376992","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hybrinomials related to hyper-Fibonacci and hyper-Lucas numbers 与超斐波那契数和超卢卡斯数相关的杂交种
Efruz Özlem Mersin
Hybrid numbers which are accepted as a generalization of complex, hyperbolic and dual numbers, have attracted the attention of many researchers recently. In this paper, hybrinomials related to hyper-Fibonacci and hyper-Lucas numbers are defined. Then some algebraic and combinatoric properties of these hybrinomials are examined such as the recurrence relations, summation formulas and generation functions. Additionally, hybrid hyper-Fibonacci and hybrid hyper-Lucas numbers are defined by using the hybrinomials related to hyper-Fibonacci and hyper-Lucas numbers.
混合数作为复数、双曲数和对偶数的一种推广,近年来引起了许多研究者的关注。本文定义了与超斐波那契数和超卢卡斯数相关的杂交项。然后研究了这些杂交项的递归关系、求和公式和生成函数等代数和组合性质。此外,使用与超斐波那契数和超卢卡斯数相关的杂交项来定义混合超斐波那契数和混合超卢卡斯数。
{"title":"Hybrinomials related to hyper-Fibonacci and hyper-Lucas numbers","authors":"Efruz Özlem Mersin","doi":"10.30931/jetas.1196595","DOIUrl":"https://doi.org/10.30931/jetas.1196595","url":null,"abstract":"Hybrid numbers which are accepted as a generalization of complex, hyperbolic and dual numbers, have attracted the attention of many researchers recently. In this paper, hybrinomials related to hyper-Fibonacci and hyper-Lucas numbers are defined. Then some algebraic and combinatoric properties of these hybrinomials are examined such as the recurrence relations, summation formulas and generation functions. Additionally, hybrid hyper-Fibonacci and hybrid hyper-Lucas numbers are defined by using the hybrinomials related to hyper-Fibonacci and hyper-Lucas numbers.","PeriodicalId":7757,"journal":{"name":"Anadolu University Journal of Science and Technology-A Applied Sciences and Engineering","volume":"238 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77602035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
Anadolu University Journal of Science and Technology-A Applied Sciences and Engineering
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1