Results 41 to 50 of about 605,818 (269)

Solving Nonlinear Equation Systems via a Steffensen-Type Higher-Order Method with Memory

Mathematics
This article introduces a multi-step solver for sets of nonlinear equations. To achieve this, we consider and develop a multi-step Steffensen-type method without memory, which does not require evaluations of the Fréchet derivatives, and subsequently ...
Shuai Wang, Haomiao Xian, Tao Liu, Stanford Shateyi   +3 more
doaj   +1 more source

An Efficient Index Mapping Algorithm for OFDM-Index Modulation [PDF]

IEEE Access, 2019
An index mapping algorithm that efficiently associates the subcarrier activation pattern (SAP) or constellation mode pattern (CMP) sequences with the index selecting bit (ISB) sequences is proposed to improve the error performances of two OFDM-`index modulation' (IM) variants, OFDM-`in-phase/quadrature' (IQ)-IM and `coordinate interleaving' (CI ...
Eunchul Yoon, Sun-Yong Kim, Soonbum Kwon, Unil Yun   +3 more
openaire   +2 more sources

Therapeutic Apheresis in Nigeria: A Multi‐Center Summary of Abstracts From the Inaugural Nigerian Society for Apheresis Scientific Meeting

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Therapeutic apheresis (TA) is an established treatment modality for hematologic, neurologic, and immunologic disorders, yet access remains severely limited in sub‐Saharan Africa. Donor apheresis, including platelet apheresis collection from healthy donors, represents an important complementary modality supporting blood product ...
Nosa Bazuaye, Chimezie Okwuonu, Evelyn Idam, Folasade Adelekan‐Popoola, Shakirat Gold‐Olufadi, Olufunto Olufela Kalejaiye, Abdullateef Ogala, Zinnah Aloziem, Blossom Amamchukwu, Patience Elimia, Mkpoikanabasi Obot‐Obot, Henry Mbakwe, Praises Maduagwuna, Olatunji Akinrodoye, Chiamaka Anyanwu, Benjamin Anyanwu, Adedamola Akinsiku, Oluwatoyin A. Akinsiku, Muzamil O. Hassan, Fatiu A. Arogundade, Olalekan E. Ojo, Homayemem Weli, Jesupelumi Adenihun, Aderemi Adelaja, Ebun Bamgboye, Olalekan Olatise, Ade E. Faponle, Ayoola Odeyemi, Michael Muoka, Stephen Asaolu, Qudrat Busari, Blessing Dawudu, Michael Naiyeju, Rasheed A. Balogun   +33 more
wiley   +1 more source

Global convergence analysis of Caputo fractional Whittaker method with real world applications

Cubo
The present article deals with the effect of convexity in the study of the well-known Whittaker iterative method, because an iterative method converges to a unique solution \(t^*\) of the nonlinear equation \(\psi(t)=0\) faster when the function's ...
Sapan Kumar Nayak, P. K. Parida
doaj   +1 more source

An Optimal Derivative-Free Ostrowski’s Scheme for Multiple Roots of Nonlinear Equations

Mathematics, 2020
Finding higher-order optimal derivative-free methods for multiple roots (m≥2) of nonlinear expressions is one of the most fascinating and difficult problems in the area of numerical analysis and Computational mathematics.
Ramandeep Behl, Samaher Khalaf Alharbi, Fouad Othman Mallawi, Mehdi Salimi   +3 more
doaj   +1 more source

Indexing methods for efficient parsing [PDF]

Proceedings of the 2003 Conference of the North American Chapter of the Association for Computational Linguistics on Human Language Technology Proceedings of the HLT-NAACL 2003 student research workshop - NAACL '03, 2003
This paper presents recent developments of an indexing technique aimed at improving parsing times. Although several methods exist today that serve this purpose, most of them rely on statistical data collected during lengthy training phases. Our goal is to obtain a reliable method that exhibits an optimal efficiency/cost ratio, without lengthy training ...
openaire   +2 more sources

Space-Efficient Construction of LZ-Index [PDF]

, 2005
A compressed full-text self-index is a data structure that replaces a text and in addition gives indexed access to it, while taking space proportional to the compressed text size. The LZ-index, in particular, requires 4uHk(1+o(1)) bits of space, where u is the text length in characters and Hk is its k-th order empirical entropy.
Arroyuelo Billiardi, Diego, Navarro, Gonzalo   +1 more
openaire   +3 more sources

Experience With Performing Rheocarna Therapy via the Single‐Needle Method for Treatment of Chronic Limb‐Threatening Ischemia

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction This study investigated the safety and efficacy of single‐needle Rheocarna therapy for chronic limb‐threatening ischemia (CLTI) with wounds. Methods Six patients with CLTI involving ulcers unresponsive to revascularization underwent single‐needle Rheocarna treatment.
Yasutaka Yamauchi, Rie Tanaka, Reona Kawahira, Shingo Nabeta, Kouhei Naoi, Kazuhito Kitajima, Akira Wada, Tomonari Takagi, Norihiko Ohura, Akira Miyamoto   +9 more
wiley   +1 more source

A Revised Inverse Data Envelopment Analysis Model Based on Radial Models

Mathematics, 2020
In recent years, there has been an increasing interest in applying inverse data envelopment analysis (DEA) to a wide range of disciplines, and most applications have adopted radial-based inverse DEA models. However, results given by existing radial based
Xiaoyin Hu, Jianshu Li, Xiaoya Li, Jinchuan Cui   +3 more
doaj   +1 more source

Numerical Study of Efficiency Indices to Evaluate the Effect of Layout Mode of Artificial Reef Unit on Flow Field

Journal of Marine Science and Engineering, 2021
Artificial reefs (ARs) have been widely used to restore the seabed habitat and protect biodiversity. They can effectively increase the dissolved oxygen content in the bottom water layer by their disturbing effect of upwelling and downwelling.
Jiating Zhang, Lixin Zhu, Zhenlin Liang, Liyuan Sun, Zhaoyi Nie, Jiahao Wang, Wude Xie, Zhaoyang Jiang   +7 more
doaj   +1 more source