4,690 research outputs found
Numerical investigation of volute tongue design on hemodynamic characteristics and hemolysis of the centrifugal blood pump
No full textIn the design of rotary blood pumps, the optimization of design parameters plays an essential role in enhancing the hydrodynamic performance and hemocompatibility. This study investigates the influence of the volute tongue angle as a volute geometric parameter on the hemodynamic characteristics of a blood pump. A numerical investigation on five different versions of volute designs is carried out by utilizing a computational fluid dynamics (CFD) software ANSYS-FLUENT. The effect of volute tongue angle is evaluated regarding the hydrodynamic performance, circumferential pressure distribution, the radial force, and the blood damage potential. A series of volute configurations are constructed with a fixed radial gap (5%), but varying tongue angles ranging from 10 to 50°. The relative hemolysis is assessed with the Eulerian based empirical power-law blood damage model. The pressure-flow rate characteristics of the volute designs at a range of rotational speeds are obtained from the experimental measurements by using the blood analog fluid. The results indicate an inverse relationship between hydraulic performance and the tongue angle; at higher tongue angles, a decrease in performance was observed. However, a higher tongue angle improves the net radial force acting on the impeller. The pump achieves the optimized performance at 20° of the tongue angle with the relatively high hydrodynamic performance and minor blood damage risk.</p
Rubaies of İbrahim Aczî kendî (The last 180 rubaies)
No full text1881-1965 yılları arasında Konya'da yaşayan İbrahim Aczî Kendî, Konya'nın XX. yüzyılda yetiştirdiği önemli şair, gazeteci, araştırmacı, yazar, mutasavvıf ve folklorculardandır. Konya'da öğretmenlik yapan İbrahim Aczî Kendî, Arapça ve Farsça öğrenerek kendini geliştirmiş, tasavvuf, edebiyat ve tarihle ilgili kitaplar hazırlamıştır. İbrahim Aczî Kendî'nin bizzat kendisinin kaleme aldığı, tek nüshası Yusuf Ağa Kütüphanesinde 10465/1 numara ile kayıtlı olan Devr-i Zaman adlı eseri, 360 Farsça rubâî ve bu rubâîlerin Osmanlı Türkçesiyle yazılmış açıklamalarından oluşmaktadır. Bu çalışmada İbrahim Aczî Kendî'nin hayatı incelenmiş, Devr-i Zaman adlı eserinde bulunan 360 rubâînin son 180 tanesi çalışılmıştır. Her bir rubâînin Farsça ana metinleri bilgisayar ortamına aktarılmış, bazen sadece tercüme, bazen de çeşitli açıklamalar içeren Osmanlı Türkçesiyle yazılan kısımlar ise latin harfleriyle aktarılmıştır. İbrahim Aczî Kendî, bu çalışmada ele alınan rubâîlerinde, genellikle ilahi aşk, toplumsal ahlâk, zamandan şikâyet, riya ve kibirden uzak durmanın gerekliliği gibi birçok konuya değinmiştir.İbrahim Aczî Kendî who lived the years between 1881 and 1965 in Konya is an important poet, a journalist, an investigate author, a mystic and a folklorist who raised by Konya in 20th century. İbrahim Aczî Kendi, worked as a tutor in Konya, improved himself by learning Arabian and Persian, prepared books about mysticism, literature and history. Devr-i zaman, which is written by İbrahim Aczî Kendî by himself and whose only transcript is registered with the number 104657/1 in Yusuf Ağa Library, is made of 360 Persian rubaies and their explanation which is written in Ottoman Turkish. In this study İbrahim Aczî Kendî's life and last 180 of 360 Persian rubaies are studied. Each of rubaies' Persian main texts are transferred to electronic environment. Parts that sometimes include translation, sometimes also include various types of explanations written Ottoman Turkish are transferred with Latin letters. İbrahim Aczî Kendî, rubaies that handled in this study, touches on many topics, such as sociel ethics, complaints about today's youht, hypocrisy and staying away from and arrogance
External interventions and the duration of civil wars
No full textThe authors combine an empirical model of external intervention, with a theoretical model of civil war duration. Their empirical model of intervention allows them to analyze civil war duration, using"expected"rather than"actual"external intervention as an explanatory variable in the duration model. Unlike previous studies, they find that external intervention is positively associated with the duration of civil war. They distinguish partial third-party interventions that extend the length of war, from multilateral"peace"operations, which have a mandate to restore peace without taking sides - and which typically take place at war's end, or at least when both sides have agreed to a cease-fire. In a future paper, the authors will examine whether partial third-party interventions - whatever their effect on a war's duration - increase the risk of war's recurrence. If that proves true, then even if interventions reduce the length of civil war, they may do so at the cost of further destabilizing the political system, and sowing the seeds of future rebellion.Children and Youth,Peace&Peacekeeping,Post Conflict Reconstruction,Post Conflict Reconstruction,International Affairs,Post Conflict Reconstruction,Social Conflict and Violence,Peace&Peacekeeping,Post Conflict Reconstruction,International Affairs
Morphological and grammatical study of the fuctional derived nouns in the six anthologies by Sheikh Ibrahim Inyas / Ibrahim Shaaban
No full textThis research is a morphological, grammatical and analytical study on the multiplicity of the
scale of five derived nouns and their formulas as used in the six anthologies (dawawin) of
Senegalese Sheikh Ibrahim Inyas al-Kaulakhi, based on the chosen rulings, methods and context
used by the author of the six collections. The research focuses and discusses on the subject
noun, the accusative noun, the hyperbolic participles, the attributive participle,
comparative/superlative adjective, and their scales and formulas, both standard and nonstandard,
and the usage of their multiple meanings according to the methods employed in these
six dawawin, including infinitive and augmented noun of three or four lettered origin, with
grammatical rulings associated with alif and lam (al), as selected or chosen according to the
usage of Sheikh Ibrahim Inyas al-Kaulakhi. In order to find out the context of morphological and
grammatical methods, analyses were made that acquaint readers with the taste of Sheikh
Ibrahim's ability in applying morphological and grammatical rules. Through extrapolation, the
morphological and syntactic source of each derivative was separately traced in those six
dawawin. In reviewing the morphological and syntactic language of those derivatives, books and
the theories of ancient and modern linguists, according to consensus and contrast, were used in
shedding light on each derived noun by studying the ancient morphological and syntactic
sources according to the information and theories derived therefrom and made analysis
thereon. In this regard, a morphological or grammatical context was established using a
qualitative rather than quantitative approach based on which the research was conducted and
its structure, sections and chapters arranged accordingly, with clarification and detailed
analyses. Findings of this research have established the functioning of morphological structure
and scales of the five derived nouns as well as the semantic meaning, application and usage of
augmented derived nouns as dealt with in their grammatical rulings associated with the Arabic
definite article - alif and lam (al), to enable them function in the past, present and future tenses,
and what not. The research concluded with a revelation which is indicative of Sheikh Ibrahim
Inyas’ ability and mastery of morphological scales and grammatical expertise as though he lived
with and learnt from Khalil, Sibawayh, Ibn Jinni and Asma'i and their ilk
Correction to: Ptotic Right Retro‑renal Liver Lobe Injury During Supine Percutaneous Nephrolithotomy Managed by Hemostatic Sponge (Indian Journal of Surgery, (2022), 84, 3, (555-558), 10.1007/s12262-021-03035-2)
No full textThe article “Ptotic Right Retro‑renal Liver Lobe Injury During Supine Percutaneous Nephrolithotomy Managed by Hemostatic Sponge”, written by İbrahim Üntan and Volkan Sabur, was originally published electronically on the publisher’s internet portal on 20 July 2021 without open access. With the author(s)’ decision to opt for Open Choice the copyright of the article changed on 06 October 2021 to © The Author(s) 2021 and the article is forthwith distributed under the terms of the Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The original article has been corrected. © 2021, The Author(s)
The reconfigurable intelligent surface-aided multi-node IoT downlink: beamforming design and performance analysis
No full textReconfigurable intelligent surfaces (RISs) are capable of enhancing the wireless propagation environment of the future Internet of Things (IoT). Recently, they have also been configured as a transmitter to realize information modulation at low hardware complexity. In this article, we conceive a transmitter relying on a single radio frequency (RF) chain for low-complexity RIS-aided multiuser downlink communication. More explicitly, in the proposed architecture, the multiuser information is transmit precoded and modulated at the RIS by appropriately configuring the phase shift and amplitude of each RIS element. We assume that the distribution of multiple users obeys on a Poisson point process (PPP), where we jointly optimize the total power reflected from the RIS and the power allocation fraction assigned to each user, under the practical constraint of a realistic amplitude limitation of each RIS element. Additionally, we theoretically analyze the ergodic rate, symbol error probability, outage probability, and coverage range of the proposed RIS-aided single-RF downlink and confirm the accuracy of our analysis by simulations. Finally, we compare its performance to that of the conventional multiple-input-multiple-output (MIMO) systems employing multiple RF-chains.</p
Modernization in Tüccarzade İbrahim Hilmi
No full textİbrahim Hilmi Osmanlı Devleti'nin son dönemlerinde ve Cumhuriyet'in ilk yıllarında yaşamış, yayıncı ve yazardır. II. Meşrutiyet döneminde Osmanlı Devleti'nin yeniden eski parlak günlerine dönebilmesi için maddi ve manevi alanda çözümler sunmaya çalışmıştır. Osmanlı Devleti'nin kurtulması için modernleşmeyi gerekli göre İbrahim Hilmi, Batı'nın kötü ahlakının alınmasına karşı çıkmaktadır. Yazılarını Balkan Savaşlarından sonra yazan İbrahim Hilmi'de milliyetçilik akımının etkileri hissedilmektedir. Siyaset, eğitim, ordu, kültür ve edebiyat, kadın, gençlik, aile, din, ekonomi alanlarında görüşler ortaya koyan İbrahim Hilmi'nin görüşleri İttihat ve Terakki tarafından savunulan görüşlerle uyum içindedirIbrahim Hilmi lived in the late Ottoman period and the early years of the republic, the publisher and author. II. Mesrutiyet Period of the Ottoman Empire again return to the old glorious days worked to provide solutions for the material and the spiritual realm. According to the necessary modernization of the Ottoman Empire to escape Ibrahim Hilmi, West opposes the reception of bad morals. Entries after the Balkan Wars by Ibrahim Hilmi felt the effects of nationalism movement. Political, educational, military, culture and literature, women's, youth, family, religion, opinions setting out the areas of economics advocated by Ibrahim Hilmi opinion in keeping with views of ?Ittihat ve Terakki
SD card projects using the PIC microcontroller / Dogan Ibrahim.
No full textbook fair 2012xxiii, 545 p. :PIC Microcontrollers are a favorite in industry and with hobbyists. These microcontrollers are versatile, simple, and low cost making them perfect for many different applications. The 8-bit PIC is widely used in consumer electronic goods, office automation, and personal projects. Author, Dogan Ibrahim, author of several PIC books has now written a book using the PIC18 family of microcontrollers to create projects with SD cards.
This book is ideal for those practicing engineers, advanced students, and PIC enthusiasts that want to incorporate SD Cards into their devices. SD cards are cheap, fast, and small, used in many MP3 players, digital and video cameras, and perfect for microcontroller applications.
Complete with Microchip's C18 student compiler and using the C language this book brings the reader up to speed on the PIC 18 and SD cards, knowledge which can then be harnessed for hands-on work with the eighteen projects included within. Two great technologies are brought together in this one practical, real-world, hands-on cookbook perfect for a wide range of PIC fans
The "Sufism" of Monsieur Ibrahim
No full textThis chapter focuses on the representation of Sufism in the 2003 film Monsieur Ibrahim (MI). My examination is undertaken in isolation of Eric- Emmanuel Schmitt’s 2001 short novel Mr. Ibrahim and the Flowers of the Koran, which developed upon an earlier French play written by the same author.2 In examining the film, I do not presume to know Schmitt’s thoughts about Sufism, nor do I purport to discover anything in this regard. Rather, what follows is an analysis based on my observation of the film’s representation of Sufism
KEISLAMAN AYAH NABI IBRAHIM (Studi Analisis Tafsir Dan Hadits Nabi Tentang Agama Ayah Nabi Ibrahim As)
No full textAbstrak:Dalam buku-buku sejarah disebutkan bahwa Nabi Ibrahim asadalah seorang utusan Allah SWT yang sangat luar biasa. Ibrahimadalah utusan Allah yang berusaha dengan sekuat tenaga untukmenemukan tuhannya. Ibrahim bahkan dengan keteguhan hatinyamenghancurkan patung-patung yang dibuat oleh Azar ayahnya.Sejarah mencatat bahwa Azar ayah Ibrahim adalah seorang yangkufur kepada Allah SWT dan termasuk pembuat patung-patungyang mana patung tersebut dijadikan sebagai Tuhan dan disembaholeh orang-orang pada zamannya. Namun dalam beberapa kitabtafsir dan hadits-hadits Nabi justru disebutkan sebaliknya bahwaAzar bukanlah ayah kandung Nabi Ibrahim. Azar hanyalah ayahangkat Nabi Ibrahim dan ayah kandung Nabi Ibrahim sendiriadalah seorang muslim yang tidak kufur kepada Allah SWT.Penulisan dalam karya ilmiah ini menggunakan metode libraryresearch atau studi kepustakaan. Penulis membandingkan beberapapendapat dalam kitab-kitab tafsir dan hadits-hadits nabi tentangsiapa sebenarnya ayah kandung Nabi Ibrahim apa agama agamaayah kandung Nabi Ibrahim tersebut. Setelah dilakukan telaahsecara mendalam penulis menyimpulkan bahwa mayoritas ulamatafsir dan hadits justru lebih memilih berpendapat bahwa Azarbukanlah ayah kandung Nabi Ibrahim dan ayah kandung NabiIbrahim adalah seorang muslim yang tidak kufur kepada AllahSWT.Kata Kunci: Agama, Islam, Kafir, Ayah Ibrahim
Abstract:In historical books it is mentioned that Prophet Ibrahim as was agreat messenger of Allah SWT. Ibrahim is God's messenger whostrives hard to find his god. Ibrahim even with his fortitudedestroying the statues made by his father Azar. History recordsthat Azar's father Abraham was a disbeliever to Allah SWT andincluded the makers of statues whose statue was made as God andworshiped by people of his day. But in some of the books of tafsirand the hadiths of the Prophet it is mentioned otherwise that Azaris not the father of the Prophet Ibrahim. Azar is not true father ofthe Prophet Abraham and the true father of Prophet Abrahamhimself is a Muslim who believe in Allah SWT. Writing in thisscientific papers uses library research methods or literature studies.The author compares several opinions in the books of tafsir andhadiths of the prophet about who is actually the father of ProphetAbraham and what is the religion of the Abraham's father. After athorough study of the writer concludes that the majority of ulama'tafsir and hadith instead prefer to argue that Azar is not the fatherof Prophet Abraham and the father of Prophet Abraham is aMuslim who believe in Allah SWT.Keywords: Religion, Islam, disbeliever, father of Prophet Abraha
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