Results 71 to 80 of about 837,325 (362)

Investigation of formation mechanisms of chips in orthogonal cutting process

EPJ Web of Conferences, 2012
This work investigates the formation mechanisms of chips in orthogonal cutting of mild steel and the transformation conditions between various morphology chips. It is supposed that the modeling material follows the Johnson-Cook constitutive model.
Ma W.
doaj   +1 more source

Routing and wavelength/sub-wavelength path assignment to maximizing accommodated traffic demands on optical networks

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2016
Wavelength division multiplexing (WDM) technology transmits multiple optical communication channels in an optical fiber. Routing and wavelength assignment (RWA) problems on WDM network have widely attracted interest of many researchers.
Yosuke WATANABE, Kiyo ISHII, Toshiki SATO, Atsuko TAKEFUSA, Tomohiro KUDOH, Maiko SHIGENO, Akiko YOSHISE   +6 more
doaj   +1 more source

Uniform Illumination of Concentrated Sunlight in Photovoltaic Solar Modules With Plane-Focusing Fresnel Lenses

IEEE Photonics Journal, 2023
An algorithm has been developed for modeling the parameters of microprismatic specialized plane-focusing Fresnel lenses. Such lenses are more effective for application in photovoltaic modules compare to the traditional point-focusing Fresnel lenses for ...
Minglei Fu, Eugene Antonov, Volodumyr Lysenko, Viacheslav Petrov, Vladimir Zenin   +4 more
doaj   +1 more source

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Characterizing the salivary RNA landscape to identify potential diagnostic, prognostic, and follow‐up biomarkers for breast cancer

Molecular Oncology, EarlyView.
This study explores salivary RNA for breast cancer (BC) diagnosis, prognosis, and follow‐up. High‐throughput RNA sequencing identified distinct salivary RNA signatures, including novel transcripts, that differentiate BC from healthy controls, characterize histological and molecular subtypes, and indicate lymph node involvement.
Nicholas Rajan, Irina Primac, Emre Etlioglu, Laurens Debruyne, Ann Janssen, Magy Sallam, Kevin Tabury, Roel Quintens, Wiebren Tjalma, Mohammed Abderrafi Benotmane   +9 more
wiley   +1 more source

Analyzing orthogonal cutting process using SPH method by kinematic cutting tool

Comptes Rendus. Mécanique, 2020
In this paper, the orthogonal cutting process is studied using Smooth Particle Hydrodynamic (SPH) method by a kinematic rigid cutting tool and two work-piece material models: perfectly elastic-plastic (EPP) model and Johnson–Cook (JC) model.
Dehghani, Mohammad, Shafiei, Alireza, Abootorabi, Mohammad Mahdi   +2 more
doaj   +1 more source

An Adaptive Proximal Bundle Method with Inexact Oracles for a Class of Nonconvex and Nonsmooth Composite Optimization

Mathematics, 2021
In this paper, an adaptive proximal bundle method is proposed for a class of nonconvex and nonsmooth composite problems with inexact information. The composite problems are the sum of a finite convex function with inexact information and a nonconvex ...
Xiaoliang Wang, Liping Pang, Qi Wu, Mingkun Zhang   +3 more
doaj   +1 more source

Modeling hepatic fibrosis in TP53 knockout iPSC‐derived human liver organoids

Molecular Oncology, EarlyView.
This study developed iPSC‐derived human liver organoids with TP53 gene knockout to model human liver fibrosis. These organoids showed elevated myofibroblast activation, early disease markers, and advanced fibrotic hallmarks. The use of profibrotic differentiation medium further amplified the fibrotic signature seen in the organoids.
Mustafa Karabicici, Soheil Akbari, Ceyda Caliskan, Canan Celiker, Ozden Oz, Leman Binokay, Gökhan Karakulah, Serif Senturk, Esra Erdal   +8 more
wiley   +1 more source

Discussing the Cutting Method of Skew Bevel Bear based on the Tooth Surface Generating Line

Jixie chuandong, 2020
The principle of tooth surface generating of skew bevel gear is analyzed about spherical involute， based on the theory that the line which in the plane that is tangent with the base cone of the skew bevel gear roll on the cone surface absolutely， a new ...
Baichao Wang, Xianting Lu, Litong Zhang, Zhenquan Xu, Xue Zhang   +4 more
doaj  

Training linear ranking SVMs in linearithmic time using red-black trees

, 2011
We introduce an efficient method for training the linear ranking support vector machine. The method combines cutting plane optimization with red-black tree based approach to subgradient calculations, and has O(m*s+m*log(m)) time complexity, where m is ...
Antti Airola, Bayer, Bottou, Bradley, Burges, Chapelle, Chapelle, Cormen, Cortes, Cortes, Drucker, Franc, Freund, Fürnkranz, Hanley, Herbrich, Joachims, Joachims, Joachims, Joachims, Lewis, Liu, Pahikkala, Poggio, Provost, Smola, Tapio Pahikkala, Tapio Salakoski, Teo, Teo, Tsochantaridis, Waegeman, Williams   +32 more
core   +1 more source