We demonstrate reduction of the free-carrier lifetime in a silicon nanowaveguide from 3 ns to 12.2 ps by applying a reverse bias across an integrated p-i-n diode. This observation represents the shortest free-carrier lifetime demonstrated to date in silicon waveguides. Importantly, the presence of the p-i-n structure does not measurably increase the propagation loss of the waveguide. We derive ...

Background and Purpose—Stroke is emerging as a major public health problem for women, as it is for men. Controversy persists regarding gender differences in stroke incidence, severity, and poststroke disability. Methods—Participants in the Framingham Original (n 5119; 2829 women) and Offspring (n 4957, 2565 women) cohorts who were 45 years and stroke-free were followed to first incident stroke....

Accurately predicting the dynamic memory consumption (or heap space) of programs can be critical during software development. It is well-known that garbage collection (GC) complicates such problem. The peak heap consumption of a program is themaximum size of the data on the heap during its execution, i.e., the minimum amount of heap space needed to safely run the program. Existing heap space an...

The incidence and mortality from coronary heart disease (CHD) in Japan are reported to be among the lowest of all industrialized countries,1,2 but, in the backdrop of major dietary changes and worsening cardiovascular risk factors,2 recent reports have shown an increasing trend of acute myocardial infarction (AMI) in the Japanese population.3,4 With the aging of the population and the presence ...

This chapter presents a hybrid environment to investigate the use of a table-prop and physics-based manipulation, for quick and rough object creation and manipulation in three-dimensional (3D) virtual environments (VEs). A set of new direct visual editing techniques were designed to model virtual objects. The system has been integrated into a Cave Automatic Virtual Environment (CAVE) and a larg...

now a days, management and control of perishable inventories is important in many units and industrial enterprises. basically perishable inventory management and control is more complex and challenging than inventories with unlimited lifetime. hence determining the optimal inventory policies for these products is very important.  in this paper, the optimal inventory policy for perishable items ...

Mobile devices today contain many power hungry subsystems and execute different applications. Standard power management is not aware of the desired battery lifetime and has no visibility into which applications are executing. However, power consumption is strongly dependent on which applications are executed. In this work, we propose a novel power characterization strategy for mobile devices ca...

There is currently great interest in determining physical parameters, e.g. fluorescence lifetime, of individual molecules that inform on environmental conditions, whilst avoiding the artefacts of ensemble averaging. Protein interactions, molecular dynamics and sub-species can all be studied. In a burst integrated fluorescence lifetime (BIFL) experiment, identification of fluorescent bursts from...