HT), is an important neurotransmitter. It has been implicated in a broad range of behavioral disorders affecting sleep, eating, sex, and mood (1). In order to obtain low detection limits for small volume samples, microbore 1 mm i.d. columns have been widely used (2-5). An LC system equipped with a 1 mm microbore column can easily provide detection limits of 1 fmole/5 μL. This system enables bas...

Investigating the behavior of the box-shaped column panel zone has been one of the major concerns of scientists in the field.  In the American Institute of Steel Construction the shear capacity of I-shaped cross- sections with low column thickness is calculated. This paper determines the shear capacity of panel zone in steel columns with box-shaped cross-sections by using artificial neural netw...

Abstract: A finite element model is verified accurate enough to simulate the static test of one reinforced-concrete frame with specially shaped columns subjected to the loss of a ground corner column. As the frame sustained loads primarily depending on the beam resisting mechanism in the test, four related parameters, namely the height of beam section, rebar ratio of beam, rebar ratio of slab a...

RESEARCH ARTICLE Nonlinear Numerical Analyses of a Fabricated Connection of Concrete-Filled Steel Column to Steel Beam Under Low-Reversed Cyclic Loading Chunyi Cui, Kun Meng, Yan Kong, Yannian Zhang and Wenxin Zuo Department of Civil Engineering, Dalian Maritime University, Dalian 116026, China School of Civil Engineering, Shenyang Jianzhu University, Shenyang 110168, China School of Civil and ...

Conventional endotracheal tubes have high intrinsic resistive properties due to their high outer-to-inner diameter ratio. This has significant disadvantages in the treatment of the small neonatal or pediatric patient as work of breathing increases with decreasing internal radius. Diagnostic and therapeutic procedures, including suctioning, may be very difficult in patients with small endotrache...

The potential performance of carbon nanotubes (CNTs) as springs for elastic energy storage is evaluated. Models are used to determine an upper bound on the energy density that can be stored in defect-free individual CNTs and in assemblies of such CNTs. The models reveal that optimal energy density may be achieved in small-diameter single-walled CNTs loaded in tension, with a maximum theoretical...

Repeatable and accurate evaluation of flaws from the inaccessible sides of thick-walled structures is still remained as one of the hurdles in the field of NDE of flaws. The present paper describes the development of an effective DC potential-drop measuring system for evaluating the response of rear wall flaws, especially in thick-walled structures, in which an ideal averaging scheme is introduc...