Skin picking (excoriation) disorder is the recurrent excoriation of one's own skin, resulting in noticeable skin damage. People pick their skin for different reasons. For the majority of patients, first skin picking is associated with a history of childhood abuse and personal problems. Subjects who moderately to severely cause injurious self-harm are more likely to have a history of exposure to...

This paper describes Team Delft’s robot, which won the Amazon Picking Challenge 2016, including both the Picking and the Stowing competitions. The goal of the challenge is to automate pick and place operations in unstructured environments, specifically the shelves in an Amazon warehouse. Team Delft’s robot is based on an industrial robot arm, 3D cameras and a customized gripper. The robot’s sof...

This study examines the pattern of active versus passive trading in UK equities over the period 1991-2005. We describe a metric to analyse trading activity and volumes in the UK FTSE350 and AIM markets, with emphasis on industrial and size-based effects. Our findings indicate that active stock picking has been consistently declining in the UK market over the period studied for all markets, size...

This work aims to increase reliability and reduce cycle time in order to realize a commercially-viable visionguided robotic bin-picking system. We present a novel method for two-fingered grasp generation and target selection for binpicking of randomized parts. We also propose a definition for grasp robustness, and use this to formulate a new grasp quality measure. A densely-sampled set of grasp...

The picking process is a critical supply chain component for many companies. A proper warehouse configuration, storage policy, trays replenishment policy, and other factors are also important to reduce not only the delivery time, but also increase productivity while maintaining quality factors at competitive costs. This paper presents an integrated approach to tackle the complexity of warehouse...

Accurately locating microseismic events can be used to monitor fluid migration during reservoir production and hydrofracturing operations. This is usually done with sparse networks of seismic sensors located in boreholes or with denser surface arrays. The data used for microearthquake monitoring are corrupted by noise, which reduces the signal-to-noise ratio to values as low as 0.1. Monitoring ...

Event picking is used in many steps of seismic processing. We present an automatic event picking method that is based on a new attribute of seismic signals, the instantaneous traveltime. The calculation of the instantaneous traveltime consists of two separate but interrelated stages. First, a trace is mapped onto the time-frequency domain. Then the time-frequency representation is mapped back o...

Unit-load warehouses are used to store items—typically pallets—that can be stowed or retrieved in a single trip. In the traditional, ubiquitous design, storage racks are arranged to create parallel picking aisles, which force workers to travel rectilinear distances to picking locations. We consider the problem of arranging aisles in new ways to reduce the cost of travel within these warehouses....

Psychogenic excoriations are also called neurotic excoriations, dermatillomania or skin picking syndrome. We proposed diagnostic criteria and then performed a study of the psychiatric profiles of outpatients with psychogenic excoriations and the circumstances around the creation of these excoriations. Although the results must be interpreted with caution because the study was performed with onl...