The book is not just another " pep talk " on The Kitchen Sink and How to Learn to Like It. Its stated purpose is "to discuss how the ingrained ideas which we have inherited, affect us, as women to-day, and to try to decide whether a woman ought to try to adapt herself to them, or whether it is the old pattern that wants adapting". It seems to be directed mainly to the wife and mother of young a...

The temporal stability of a two-layer plane Couette flow with an interfacial heat source/sink is studied, in the presence viscosity stratification, predicting unstable streamwise and spanwise perturbations. Based on wavenumber at onset, perturbations are further classified as long-wave finite-wave, where mode investigated using asymptotic numerical analyses. finite-wave instability expected to ...

Use of mobile devices for data collection in wireless sensor networks (WSNs) has recently drawn much attention. Controlled sink mobility has been shown to be beneficial in energy conservation and lifetime prolongation. In this paper, we propose a multi-hop uneven hierarchical routing protocol (MUHRP) using a controlled mobile sink. We first analyze the performance of MUHRP with a fixed sink nod...

Habitat sinks can attract dispersing animals if high mortality or breeding failure are difficult to detect (e.g., when due to human hunting or pollution). Using a simple deterministic model, we explore the dynamics of such source-sink systems considering three scenarios: an avoided sink, no habitat preference, and an attractive sink. In the second two scenarios, there is a threshold proportion ...

The global terrestrial carbon sink has increased since the start of this century at a time of growing carbon emissions from fossil fuel burning. Here we test the hypothesis that increases in atmospheric aerosols from fossil fuel burning enhanced the diffuse light fraction and the efficiency of plant carbon uptake. Using a combination of models, we estimate that at global scale changes in light ...

In this study, the thermal performance of the printed circuit board (PCB) as a heat sink for the light-emitting diode (LED) bulb is analyzed. Cooling air is drawn through the bottom inlet of a case and exchanges heat from a vertically aligned PCB acting as a heat sink fin. The air then exits through a top outlet. Cooling performance is improved by arranging parallel PCBs to form a channel. Heat...

Sink mobility has been utilized in numerous schemes to prolong the lifetime of wireless sensor networks (WSNs). Among the many ways of improving the performance of a WSN in terms of crucial metrics such as its lifetime and data latency, utilizing the mobility of some of the network components has been recently observed to be among the most promising. Regardless of its numerous advantages, deliv...

Power semiconductors can be modeled as a thermal network of resistors and capacitors. The thermal boundary condition of such a model is typically defined as the heat sink surface temperature which is assumed to be constant. In reality, the heat sink surface temperature underneath the power module is not exactly known. In this paper we show how to set up a thermal model of the heat sink in form ...

Wireless sensor networks are the grouping of tiny sensor nodes, which collects the information by sensing activeness from the surroundings similar lands, forests, hills, sea. In wireless sensor networks, using mobile sinks mobility rather than static sink for data collection is the new trend in present years. Current researches are focusing on moving patterns of the mobile sink to achieve optim...

Ab = heat-sink-base surface area Ac = cross-sectional area of the fin Cp = specific heat of the air EI = Elenbaas number g = gravity H = fin height h = heat transfer coefficient around fin ka = thermal conductivity of the air kh = thermal conductivity of the heat sink L = fin length N = total number of fins of the heat sink P = plate-air parameter Pe = perimeter of the fin pf = fin pitch qb = h...