Potentiometric Determination of Dopamine Using a Solid-Contact Polymer Membrane Ion-Selective Electrode Tanji Yin1 2 3 ∗ and Wei Qin1 1Key Laboratory of Coastal Zone Environmental Processes, Yantai Institute of Coastal Zone Research YIC , Chinese Academy of Sciences CAS ; Shandong Provincial Key Laboratory of Coastal Zone Environmental Processes, YICCAS, Yantai, Shandong 264003, P. R. China 2So...

Abstract The fatigue process under fretting conditions is characterized by small oscillatory movements due to vibrating or cyclic loads between two surfaces in contact. Two phenomena can arise as a consequence: the surface wear of bodies contact, giving rise so-called wear. second phenomenon concerns crack nucleation contact region, causing reduction strength component subjected loading. This c...

High-temperature thermal contact resistance (TCR) plays an important role in heat-pipe-cooled thermal protection structures due to the existence of contact interface between the embedded heat pipe and the heat resistive structure, and the reduction mechanism of thermal contact resistance is of special interests in the design of such structures. The present paper proposed a finite element model ...

The distribution of cytotypes in mixed-ploidy species is crucial for evaluating ecological processes involved in the establishment and evolution of polyploid taxa. Here, we use flow cytometry and chromosome counts to explore cytotype diversity and distributions within a tetraploid-octoploid contact zone. We then use niche modelling and ploidy seed screening to assess the roles of niche differen...

Recently, the demand for lithium (Li) as an energy storage element has increased, owing to rapid increase in number of electric vehicles. To meet this demand, Li exploration become increasingly important. The Boam deposit is located Uljin area eastern South Korea, where several rare-element pegmatites (0.24% Li) intrude Precambrian Janggun Limestone Formation. In study, we performed petrographi...

This paper reports the reduction of package-stresses by in tm ducing a decoupling zone directly m u n d a sensor structure. Different geometries of the decoupling zones are compared, using the Fdte Element Method (FEM) and analytical models. A large reduction is obtained in case of a corrugated decoupling zone. To optimize the reduction, an analytical description of a ring-shaped V-groove is gi...

The focus of the current contribution is on the development of the unified geometrical formulation of contact algorithms in a covariant form for various geometrical situations of contacting bodies leading to contact pairs: surface-to-surface, line-to-surface, point-to-surface, line-to-line, point-to-line, point-to-point. The construction of the corresponding computational contact algorithms are...