Dynamic Mode Decomposition for Large-Scale Coherent Structure Extraction in Shear Flows.

Large-scale structures have been observed in many shear flows which are the fluid generated between two surfaces moving with different velocity. A better understanding of the physics of the structures (especially large-scale structures) in shear flows will help explain a diverse range of physical phenomena and improve our capability of modeling more complex turbulence flows. Many efforts have been made in order to capture such structures; however, conventional methods have their limitations, such as arbitrariness in parameter choice or specificity to certain setups.

A Visualization Framework for Multi-scale Coherent Structures in Taylor-Couette Turbulence.

Taylor-Couette flow (TCF) is the turbulent fluid motion created between two concentric and independently rotating cylinders. It has been heavily researched in fluid mechanics thanks to the various nonlinear dynamical phenomena that are exhibited in the flow. As many dense coherent structures overlap each other in TCF, it is challenging to isolate and visualize them, especially when the cylinder rotation ratio is changing.

Visual Analysis of Spatio-temporal Relations of Pairwise Attributes in Unsteady Flow.

Despite significant advances in the analysis and visualization of unsteady flow, the interpretation of it's behavior still remains a challenge. In this work, we focus on the linear correlation and non-linear dependency of different physical attributes of unsteady flows to aid their study from a new perspective. Specifically, we extend the existing spatial correlation quantification, i.

[A case of complete section of the pancreas during closed abdominal trauma].

A review of the literature on pancreatic trauma and its treatment in the light of recent experience is presented. The incidence, mechanism, classification, diagnosis, treatment and complications of pancreatic trauma are discussed. A case of pancreatic transection after blunt abdominal trauma is described.

Laparoscopic drainage of a lymphocele after renal transplantation.

Lymphoceles are a well-known complication of renal transplantation, with incidence rates up to 18%. The management of symptomatic lymphocele remains controversial. We report the case of a lymphocele which was successfully drained into the peritoneal cavity using laparoscopic surgery.