The present research investigated second law analysis of laminar flow over a backward facing step with various expansion ratios (ER). As Reynolds number (Re) increased the value of total entropy generation (Ns) increased. For smaller values of Re as the expansion ratio increased the value of Ns decreased. However, for higher values of Re as ER increased the value of Ns decreased but at smaller ...

We present an approach to the generation of referring expressions (REs) which computes the unique RE that it predicts to be fastest for the hearer to resolve. The system operates by learning a maximum entropy model for referential success from a corpus and using the model’s weights as costs in a metric planning problem. Our system outperforms the baselines both on predicted RE success and on si...

A new algorithm for the generation of test sequences to detect dynamic errors due to re ection and crosstalk noise in combinational circuits is presented. Based on the circuit level a new approach for error modeling including the duration of re ection and crosstalk errors, is described. The presented algorithm takes the high in uence of error durations as well as gate and transmission line dela...

The heat transfer enhancement and entropy generation of Al2O3-water nanofluids laminar convective flow in the microchannels with flow control devices (cylinder, rectangle, protrusion, and v-groove) were investigated in this research. The effects of the geometrical structure of the microchannel, nanofluids concentration φ(0%–3%), and Reynolds number Re (50–300) were comparatively studied by mean...

A modelling tool is applied to assess long-term energy security in the Australian National Electricity Market (NEM). The potential role of renewable energy in increasing the security of electricity supply is examined, with a focus on two aspects: price risk and physical supply risk. Optimised portfolios with no renewable energy (RE) are found to have a diversity index suggestive of a highly con...

we reported a 35 year old breast cancer patient who was referred to our nuclear medicine department for sentinel node mapping. she was planned to undergo mastectomy and lymphatic mapping. a dose of tc-99m phytate was injection in the peri-areolar region in an intra-dermal fashion. two hours post-injection no sentinel node was visible in the axilla. due to a high liver uptake, inadvertent intra-...

objectives: this study aimed to assess the effect of re-etching of desensitized dentin for five and 10 seconds on marginal microleakage of composite restorations. materials and methods: class v cavities (4x2x2mm) were prepared on the buccal surfaces of 64 third molars and randomly divided into four groups of 16. in the control group, single bond (sb) adhesive was applied after etching. in bb+sb...