22 research outputs found
Knowledge management to boost productivity in manufacturing
Data are the crucial element for productivity improvement and the evaluation or measurement process in the manufacturing sector because the data can tell the real situation about the production site. The dataare useful for productivity improvement by using certain lean manufacturingâs tools such as Value Stream Mapping (VSM), Single Minutes of Exchange Die (SMED), Total Productive Maintenance (TPM), and others. The data are also necessary for performance measurement. In this paper, we discuss the necessary data that should be included in a knowledge repository for manufacturing where the data then will be used by an assessment tool. The assessment tool is an important factor because knowledge management has a deep relationship with performance evaluation and measurement. Data Management to boost productivity in manufacturing can be divided into five phase and consists of in fourteen steps
An investigation in the correlation between Ayurvedic body-constitution and food-taste preference
Oblique Impact on Crashworthiness: Review
This paper reviewed the crashworthiness of foam-filled thin-walled structure subjected to oblique loading conditions. Crashworthiness is the most important part in designing a safety vehicle, so, the types of collisions, crashworthiness parameter and the modes of collapse of structural components are included in this part. Secondly, the energy absorber regarding the axial loading and oblique loading in terms of geometry parameters and materials of the previous research is reviewed. In addition, the manufacturing and properties of aluminium foams with the collapse behavior of foam-filled structures are studied to understand the performance and the relation under loading
The accuracy of preoperative staging of the axilla in primary breast cancer: a national register based study on behalf of Danish Breast Cancer Group (DBCG)
Looking Forwards and Back: Exploring Anticipative Versus Retrospective Emotional Change-Experiences
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Mineralogy, Morphology, and Emplacement History of the Maaz Formation on the Jezero Crater Floor From Orbital and Rover Observations
Funder: CNESFunder: CNRSFunder: IRIS OCAVFunder: NASA Return Sample Science Participating Scientist ProgramAbstractThe first samples collected by the Perseverance rover on the Mars 2020 mission were from the Maaz formation, a lava plain that covers most of the floor of Jezero crater. Laboratory analysis of these samples back on Earth would provide important constraints on the petrologic history, aqueous processes, and timing of key events in Jezero crater. However, interpreting these samples requires a detailed understanding of the emplacement and modification history of the Maaz formation. Here we synthesize rover and orbital remote sensing data to link outcropâscale interpretations to the broader history of the crater, including MastcamâZ mosaics and multispectral images, SuperCam chemistry and reflectance point spectra, Radar Imager for Mars' subsurface eXperiment ground penetrating radar, and orbital hyperspectral reflectance and highâresolution images. We show that the Maaz formation is composed of a series of distinct members corresponding to basaltic to basalticâandesite lava flows. The members exhibit variable spectral signatures dominated by highâCa pyroxene, Feâbearing feldspar, and hematite, which can be tied directly to igneous grains and altered matrix in abrasion patches. Spectral variations correlate with morphological variations, from recessive layers that produce a regolith lag in lower Maaz, to weathered polygonally fractured paleosurfaces and craterâretaining massive blocky hummocks in upper Maaz. The Maaz members were likely separated by one or more extended periods of time, and were subjected to variable erosion, burial, exhumation, weathering, and tectonic modification. The two unique samples from the Maaz formation are representative of this diversity, and together will provide an important geochronological framework for the history of Jezero crater.</jats:p
Sedimentology and Stratigraphy of the Shenandoah Formation, Western Fan, Jezero Crater, Mars
International audienceAbstract Sedimentary fans are key targets of exploration on Mars because they record the history of surface aqueous activity and habitability. The sedimentary fan extending from the Neretva Vallis breach of Jezero crater's western rim is one of the Mars 2020 Perseverance rover's main exploration targets. Perseverance spent âŒ250 sols exploring and collecting seven rock cores from the lower âŒ25 m of sedimentary rock exposed within the fan's eastern scarp, a sequence informally named the âShenandoahâ formation. This study describes the sedimentology and stratigraphy of the Shenandoah formation at two areas, âCape Nukshakâ and âHawksbill Gap,â including a characterization, interpretation, and depositional framework for the facies that comprise it. The five main facies of the Shenandoah formation include: laminated mudstone, laminated sandstone, lowâangle cross stratified sandstone, thinâbedded granule sandstone, and thickâbedded granuleâpebble sandstone and conglomerate. These facies are organized into three facies associations (FA): FA1, comprised of laminated and soft sedimentâdeformed sandstone interbedded with broad, unconfined coarserâgrained granule and pebbly sandstone intervals; FA2, comprised predominantly of laterally extensive, softâsediment deformed laminated, sulfateâbearing mudstone with lenses of lowâangle crossâstratified and scoured sandstone; and FA3, comprised of dipping planar, thinâbedded sandâgravel couplets. The depositional model favored for the Shenandoah formation involves the transition from a sandâdominated distal alluvial fan setting (FA1) to a stable, widespread saline lake (FA2), followed by the progradation of a river delta system (FA3) into the lake basin. This sequence records the initiation of a relatively longâlived, habitable lacustrine and deltaic environment within Jezero crater