Results 41 to 50 of about 14,851 (306)
Abstract The first part of this paper gives the equilibrium curve for the liquid alloys and the various solid bodies that can form in them. The curve is based on the determination of the freezing points of mixtures varying in composition from pure gold to pure aluminium.
Charles Thomas Heycock +1 more
openaire +1 more source
A numerical grading system has been established for white gold alloys using the ASTM Yellowness Index D1925, an existing colour quality standard. The Index is calculated from the CIE (International Commission of Illumination) Tri-stimulus values, X, Y and Z, and the scale is linear, so that as the number decreases, the alloy becomes whiter.
Henderson, Steven, Manchanda, Dippal
openaire +1 more source
This study presents a reversible temperature sensor with high switching ratio, ∼103. The device is fabricated using PET‐ITO and carbon nanotube dispersions in alkane. Considering its application in cold chain logistics, a proof‐of‐concept with LED is showcased. Thus, a temperature drop below the threshold temperature (crystallization temperature of the
Sunil Kumar Behera +8 more
wiley +1 more source
Al-Mg-Cu-Mn alloys have been developed for the packaging industry, in which large cold-working deformations are normally applied that can produce high dislocation densities.
Zhu, Z., Starink, M.J., Wang, S.C.
core +1 more source
A Compact Spin‐Coated Graphene UWB Antenna for Breast Tumor Detection
A compact, spin‐coated graphene ultra‐wideband patch antenna designed for breast tumor detection, capable of distinguishing between malignant and benign tumors. This innovative antenna can serve as an effective initial screening tool, particularly in resource‐limited settings such as rural areas, where access to advanced medical equipment like MRI and ...
Raja Rashidul Hasan +9 more
wiley +1 more source
Study of the influence of cobalt in the high formability of the Au-Fe system
Since ancient times, gold has been used due to its especial properties. Among those properties are the resistance to corrosion (for being noble), its high electrical and thermal conductivity, and also its conspicuous coloration.
Sandra Milena Restrepo-Arcila +3 more
doaj
Complications of implantation of aesthetic foreign bodies depending on their chemical composition
The study was aimed to assess the frequency of implantation of aesthetic foreign bodies depending on their chemical compositionThere was demonstrated that 49.4% of patients with complications after auricular piercing have jewelry made of gold and silver,
O. V. Bondarenko
doaj +1 more source
Effect Of Lead-free Solder And Gold Content On The Shear Strength, Toughness, IMC And Void Formation [TT267. C518 2004 f rb Kejuruteraan] [Microfiche 7715]. [PDF]
Study of interaction between lead free solder with gold and the mechanical toughness,shear strength of solder that associated with intermetallic compound IMC and void formation was carried out.
Oo, Cheng Ee
core
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora +4 more
wiley +1 more source
Gold geochemistry and mineralogy of till fines: a new approach for data integration [PDF]
A new method of heavy mineral (HM) separation and assessment of gold grade was compared with the results of conventional AAS analysis. Sixteen gold micronuggets and a number of particles of native metal and metal alloys (brass, tin, bismuth, lead) were ...
V. Knauf +3 more
doaj +1 more source

