Results 81 to 90 of about 55,566 (250)

The evaluation of derivatives of double barrier options of the Bessel processes by methods of spectral analysis

, 2017
The paper deals with the spectral methods to calculate the value of the double barrier option generated by the Bessel diffusion process. This technique enables us to calculate the option price in the form of a Fourier-Bessel series with the corresponding
Anna Malytska, Ivan Burtnyak
core   +1 more source

The current landscape and advances in functional-preserving gastric cancer surgery

World Journal of Surgical Oncology
With the gradual enhancement of public health literacy and advancements in gastroscopy technology, China has witnessed a steady increase in the detection rate of early-stage gastric cancer.
Qiangzu Shao, Yinghong Lin, Fan Zhang, Zeping Huang   +3 more
doaj   +1 more source

Performance Analysis of Abradable Coating Systems for Aircraft Gas Turbines

Advanced Engineering Materials, EarlyView.
Three CoNiCrAlY/YSZ/MgAl2O4 abradable liner configurations on a nickel‐superalloy are evaluated by thermal‐gradient cycling and incursion tests. Laser ablation of the bondcoat and/or Y2O3‐stabilized ZrO2 (YSZ) intermediate layer increases mechanical interlocking and bonding for thick topcoats.
Hanna Heyl, Daniel Emil Mack, Martin Tandler, Susanne Schrüfer, Robert Vaßen   +4 more
wiley   +1 more source

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

Advanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee, Son Tung Mai, Sarath Menon, Braulio Gadiel Sánchez Ortega, Ralf Drautz, Alexander Kauffmann, Gunther Eggeler, Jan Frenzel   +7 more
wiley   +1 more source

확률론적으로 접근한 베리어옵션의 가치평가 [PDF]

, 2013
학위논문 (박사)-- 서울대학교 대학원 : 물리·천문학부 물리학 전공, 2013. 8. 강병남.통계물리학적인 방법론을 경제시스템에 적용하여 그에 따라 나타나는 금융상품의 가치평가에 대한 연구를 진행하였다. 원자산이 추계 확률 과정(stochastic process)을 따를 때, 그에 따라 금융 상품의 가치는 일반적으로 어느 주어진 시점에서의 확률분포의 기대값으로 구해지게 되어 원자산의 값이 시간에 따라 변해온 경로와는 무관(path ...
노정호
core  

Effectiveness of septoplasty compared to medical management in adults with obstruction associated with a deviated nasal septum: the NAIROS RCT

Health Technology Assessment
Background The indications for septoplasty are practice-based, rather than evidence-based. In addition, internationally accepted guidelines for the management of nasal obstruction associated with nasal septal deviation are lacking.
Sean Carrie, Tony Fouweather, Tara Homer, James O’Hara, Nikki Rousseau, Leila Rooshenas, Alison Bray, Deborah D Stocken, Laura Ternent, Katherine Rennie, Emma Clark, Nichola Waugh, Alison J Steel, Jemima Dooley, Michael Drinnan, David Hamilton, Kelly Lloyd, Yemi Oluboyede, Caroline Wilson, Quentin Gardiner, Naveed Kara, Sadie Khwaja, Samuel Chee Leong, Sangeeta Maini, Jillian Morrison, Paul Nix, Janet A Wilson, M Dawn Teare   +27 more
doaj   +1 more source

Ontology‐Aligned Structuring and Reuse of Multimodal Materials Data and Workflows Toward Automatic Reproduction

Advanced Engineering Materials, EarlyView.
Reproduction of stacking fault energy calculations from literature with a semi‐automated large language model‐assisted extraction procedure: extraction of simulation protocol, atomistic structures, computational parameters, and reported results, ontology alignment, knowledge graph construction and, finally, recomputation forvalidation.
Sepideh Baghaee Ravari, Abril Azocar Guzman, Sarath Menon, Stefan Sandfeld, Tilmann Hickel, Markus Stricker   +5 more
wiley   +1 more source

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

Advanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele, Hossein Ipakchi, Tizazu H. Mekonnen   +2 more
wiley   +1 more source

Precipitation Simulations of the O‐Phase in Ti2AlNb Alloys Processed by Laser Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Simulated and experimental evolution of the O‐phase volume fraction during postprocessing of a Ti‐21Al‐25Nb (at.%) alloy processed by laser powder bed fusion. With results of sensitivity to input parameters from a thorough and quantified analysis, the interfacial energy matrix/precipitate is the most relevant input parameter for the simulation of the O‐
Silvana Tumminello, Joachim Gussone, Suzana G. Fries, Marcus Rackel, Andreas Stark, Norbert Schell, Jan Haubrich, Guillermo Requena   +7 more
wiley   +1 more source

Influence of Si Content and Milling Duration on the Microstructure and Mechanical–Tribological Properties of AlCoCrFeNiSi High‐Entropy Alloys

Advanced Engineering Materials, EarlyView.
Si‐doped AlCoCrFeNi high‐entropy alloys are synthesized by mechanical alloying to reveal the effect of Si content and milling time on phase evolution, microstructural refinement, and tribological behavior. A transition from FCC to BCC structure, significant grain refinement, and enhanced hardness and wear resistance are achieved, with the 4 at% Si ...
Mustafa Okumuş, Mehmet Emin Demir, Sercan Özpınar   +2 more
wiley   +1 more source