Dividing-wall columns (DWCs) are intensified processes that have attracted industrial and academic attention due to the reduction in operating installation costs compared traditional distillation systems. Several methodologies available for design of DWCs. Most them consist three parts: an analysis variables; structural (topology); optimization resulting preliminary design. This paper aims stud...

One of the common concrete channels in irrigation networks is the semielliptical prefabricated channels. Manning formula is usually used to design these channels. The cross-sectional area and the wetted perimeter are required to be calculated in Manning formula. There are no analytical solutions to directly compute these parameters. Thus, numerical integration methods are inevitably used. In th...

By analyzing the monitoring data of excavation foundation, maximum lateral displacement depth and top vertical retaining wall, column are studied. Research indicates that 3rd power polynomial curve can better fit change law deformation wall at each point；the fourth support demolition has great influence on wall. The third layer greatly increased After second is removed, to negative. gradually d...

virulence of the opportunistic yeast, candida albieans, involves the interplay of many complex changes including the yeast-hyphae transition, which mainly involves protein changes. cell wall mannoproteins are found to be the main cause of adherence of c. albieans to epithel ial cells in the first step of an infection process. in the present study, cell wall mannoproteins of intact yeast were pu...

A 5-amino-8-hydroxyquinoline (AHQ)-modified gold nanoparticle (GNP) layer was fabricated on an inner wall of a silica capillary column by alternatively passing a citrate-stabilized GNP solution and an AHQ solution in a repeating fashion. The observations by a field emission scanning electron microscope showed that the thickness of the resulting GNP layer was about 0.15 microm. This column was t...

OBJECTIVE To examine the role of fungi in the production of sick building syndrome. METHODS A 22 month study in the United States of 48 schools (in which there had been concerns about health and indoor air quality (IAQ). Building indoor air and surface samples, as well as outdoor air samples were taken at all sites to look for the presence of fungi or their viable propagules. RESULTS Five f...

The excitation of ion azimuthal surface oscillations with extraordinary polarization by light ion beam is studied analytically. Beam-plasma system consists of a cylindrical metal waveguide filled partially by cold magnetized plasma and light ion flow rotating around the plasma column. Dependencies of the beam instability growth rate on the system parameters (plasma and beam densities, value of ...

For a four-component feed, Kaibel (1987) proposed a single dividing wall column (DWC) with two side-streams. We will show that an analytic minimal energy expression for the Kaibel-arrangement is straightforward to deduce based on the methods presented by Halvorsen (2001). The expression is very similar to the expression for the 3-product Petlyuk column. Minimum energy for the generalized nprodu...

We report that a variety of ternary particle/liquid/liquid mixtures heavily aggregate or separate completely if (1) the particles are fully or almost fully wetted by one fluid, and (2) if the wetting fluid volume fraction is comparable to the particle volume fraction. Aggregation and separation do not happen if the particles are partially wetted by both fluids, in which case Pickering emulsions...