Life and functioning of higher organisms depends on the continuous supply of metabolites to tissues and organs. What are the requirements on the transport network pervading a tissue to provide a uniform supply of metabolites? We present an analytical scaling argument and numerical simulations on how flow dynamics and network architecture control active spread and uniform supply of metabolites b...

A prerequisite for an integrated control of sewer and wastewater treatment plant (WWTP) is a capacity driven inflow control to WWTP. This requires reliable information about the current status of WWTP operation and its behaviour on varying hydraulic, COD and nutrient loads. So far most of the proposed control strategies are based on hypothetical modelling studies. In this paper the behaviour of...

Traffic flows around roundabouts have been found to be dependent on origin-destination flows, but the true nature of this relationship is not properly understood. Present analyses are based on either gap acceptance models or empirical models. These models do not properly account for the impact of origin-destination flows on roundabout operations. This has limited the possibility to develop stra...

Objective: This study evaluated the effect and clinical value of hepatic ischemic preconditioning (IP) prior to hepatectomy. Methods: 458 patients who underwent liver resection from 2001 to 2014 at Xijing Hospital were retrospectively analyzed. The patients were divided into two groups. From 2001 to 2005, the Pringle maneuver was primarily used for hepatic inflow occlusion, and 223 patients wer...

In this paper we consider control mechanisms for mobile devices in a stochastic environment. particular, device $n$ -dimensional space subject to Brownian perturbations where mechanism moves the towards its target location at speed whic...

nanotechnology has slowly but steadily revolutionized the diagnosis, imaging and treatment of cancer. detecting cancer at earliest stages, locating the tumor at different areas in the body and specific delivery of the drugs to malignant cells including surgically inaccessible tumors are the core areas of medical and pharmaceutical research across the world. in this endeavour, nanodevices have e...