A novel micro-separator using the capillary separation effect with locally populated micro-pin-fin structure

This paper was presented at the 4th Micro and Nano Flows Conference (MNF2014), which was held at University College, London, UK. The conference was organised by Brunel University and supported by the Italian Union of Thermofluiddynamics, IPEM, the Process Intensification Network, the Institution of Mechanical Engineers, the Heat Transfer Society, HEXAG - the Heat Exchange Action Group, and the Energy Institute, ASME Press, LCN London Centre for Nanotechnology, UCL University College London, UCL Engineering, the International NanoScience Community, www.nanopaprika.eu.Phase separation is an important process in many chemical engineering applications, such as reactive processes and thermal separation processes of components. In this paper, a novel micro-separator was proposed using the capillary separation effect. The micro-pin-fins are locally populated in a rectangular microchannel, forming an enclosed region with micro pores as the boundaries. Hence, the microchannel cross section is divided into two symmetrical side regions closed to the microchannel side wall and a center enclosed region. When a two-phase stream interacts with the enclosed region boundary with micro-pores, the gas phase is prevented from entering the center enclosed region to enforce the gas phase flowing in the two side regions. Meanwhile, the liquid phase is flowing towards the center enclosed region. As a result, the twophases are separated. The effect of the separator configuration parameters such as pin-fin size and distribution is also analyzed based on the computation results. The effect of phase separation is more obvious when the cross section area of side regions is decreased

Stratigraphy and Structure of West Central Vermont and Adjacent New York

Guidebook for the fifty-first annual meeting of the New England Intercollegiate Geological Conference: Stratigraphy and structure of west central Vermont and adjacent New York, Rutland, Vermont October 17-18, 1959: title page, table of contents, and essa

Guidebook for the fifty-first annual meeting of the New England Intercollegiate Geological Conference: Stratigraphy and structure of west central Vermont and adjacent New York, Rutland, Vermont October 17-18, 1959

Trips A and I: Stratigraphy and Structure at the north end of the Taconic Range and Adjacent Areas; Trip B: Excursions at the North end of the Taconic Range near Sudbury; Trip C: Stratigraphy of the Central Champlain Valley; Trip D: Geology of the Marble Deposits near Rutland; Trip E: Economic Geology of Slate; Trip F: Stratigraphy and Structure of the Coxe Mountain Area, Vermont; Trip G: Part 1: Stratigraphy and Structure of the Taconic Sequence in the Thorn Hill and Granville quadrangle; Part 2: Pawlet Quadrangle: Part 3: Graptolite Faunas of the northern part of the Taconic Area; Part H; Stratigraphy and Structure in the Vermont Valley and the eastern Taconics between Clarendon and Dorse

Compiling SHIM

Embedded systems demand concurrency for supporting simultaneous actions in their environment and parallel hardware. Although most concurrent programming formalisms are prone to races and non-determinism, some, such as our SHIM (software/hardware integration medium) language, avoid them by design. In particular, the behavior of SHIM programs is scheduling-independent, meaning the I/O behavior of a program is independent of scheduling policies, including the relative execution rates of concurrent processes. The SHIM project demonstrates how a scheduling-independent language simplifies the design, optimization, and verification of concurrent systems. Through examples and discussion, we describe the SHIM language and code generation techniques for both shared-memory and message-passing architectures, along with some verification algorithms

Update of the HTSI method: application to mechanical characterization of CaF2 up to 800°C

The recent development of the High-Temperature Scanning Indentation (HTSI) method [1] allows for the characterization of material mechanical properties quasi-continuously over a large temperature range in 1-day experiments. However, such a technique employs a nanoindentation cycle with a constant maximum load applied regardless of the temperature. Thus, for materials exhibiting an Indentation Size Effect (ISE), the variations in hardness with temperature can stem from both temperature and ISE. It becomes more challenging to differentiate between these two effects and analyze their impact on the mechanical properties. To address this issue, a new 1-second indentation cycle has been implemented. A 0.5-second half-sine function is utilized during loading, followed by a 0.1 to 1-second creep segment and the 3-step unloading function used previously. To control the maximum achieved depth across temperatures, the maximum applied load is adjusted experimentally between each indentation, using previous indentation tests and results. This approach allows for the determination of hardness, Young's modulus, and creep properties of a material at a given maximum depth over a wide temperature range. This methodology has been applied to CaF2 single-crystal from room temperature (RT) to 800°C. The implemented cycle enables the characterization of this material at 1000nm depth over the entire temperature range. Comparison with tests performed using the previous indentation cycle highlighted the impact of the ISE in temperature. The obtained results were compared to conventional indentation results

The Subjectivities of Wearable Sleep-Trackers - A Discourse Analysis

Self-reported quality and duration of sleep in Western populations is declining. The interest in wearable sleep-trackers that are promis- ing better sleep is growing. By wearing a device day and night the sleeper is continuously connected to a more-than-human net- work. The mass-adoption of sleep-tracking devices has an impact on the personal, social and cultural meaning of sleep. This study looks at the discourse forming around wearable sleep-trackers. This extended abstract presents how non-human subjectivities are accounted for in this discourse. Through a posthuman discourse analysis of textual and visual artefacts from interviews, academic research and popular media, six distinct roles for these non-human social agents were identified: ‘Teacher’, ‘Informant’, ‘Companion’, ‘Therapist’, ‘Coach’ and ‘Mediator’. This characterisation is a first step to understanding sleep-trackers as social agents, reorganising personal and contextual relationships with the sleeping self