Results 51 to 60 of about 316,154 (266)
BMC Endocrine DisordersBackground Lingual thyroid is a rare congenital anomaly resulting from the aberrant migration of thyroid tissue during embryonic development. Although frequently asymptomatic, its identification in military aircrew poses particular challenges given the ...
Pangmin Li +6 more
doaj +1 more source
Challenges for the Bulgarian Air Force - A Royal Air Force Perspective [PDF]
Information & Security: An International Journal, 2007 Addressing the challenges facing the Bulgarian Air Force, this article examines the way defence planning is conducted in the United Kingdom. Ways to save money from the defence budget are suggested. The author offers valuable guidance on intelligent procurement and advice on how to achieve control of a country’s defence procurement procedure.
openaire +1 more source
Advanced Engineering Materials, EarlyView.New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold +2 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares +3 more
wiley +1 more source
Scientific ReportsElectromagnetic-thermal–mechanical coupling in high-speed current-carrying of armature and rail (A/R) sliding interface, which leads to armature melting and erosion, is a key challenge that restricts the performance of electromagnetic launch.
Xiaoquan Lu +4 more
doaj +1 more source
Case report: POEMS syndrome masquerades as diabetic foot
Frontiers in NeurologyWe present the case of a 54-year-old woman with reasonable blood sugar control who presented with a diabetic foot combined with severe peripheral neuropathy and vascular disease.
Guang-Xin Zhou +5 more
doaj +1 more source
Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading
Advanced Engineering Materials, EarlyView.The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley +1 more source
Karl Popper and the Mechanisms of Hydrogen Embrittlement
Advanced Engineering Materials, EarlyView.Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley +1 more source
Non-Contact Blood Pressure Monitoring Using Radar Signals: A Dual-Stage Deep Learning Network
BioengineeringEmerging radar sensing technology is revolutionizing cardiovascular monitoring by eliminating direct skin contact. This approach captures vital signs through electromagnetic wave reflections, enabling contactless blood pressure (BP) tracking while ...
Pengfei Wang +5 more
doaj +1 more source
Nanoscale Research Letters, 2019 In this paper, we propose a coding electromagnetic metasurface (EMMS) with integrated broadband tunable radiation and low-scattering performance. Anisotropic elements demonstrating opposite phases under x- and y-polarized incidence are investigated and ...
Li Li Cong +4 more
doaj +1 more source