37 research outputs found
Editorial overview: Synthetic biomolecules: Synthetic protein modifications - a giant leap towards understanding and generating biological functions
SCI(E)PubMedEDITORIAL [email protected]; [email protected]
Vector autoregressions as a tool for forecast evaluations
In his article, “Vector Autoregressions as a Tool for Forecast Evaluation,” Roy H. Webb proposes that VAR forecasts be used as a standard of comparison for other forecasts. He begins by explaining how conventional forecasting models are constructed and used, and summarizes a few common objections to these models. He then describes the VAR methodology and compares forecasts from a simple VAR model with those from a consulting firm that uses a conventional model and with a series of consensus forecasts. The VAR model holds its own in this competition; in fact, only the VAR model is able to predict the 1981-1982 recession one year before its occurrence.Forecasting
Transition from Fluid to Solid Concrete in the Flexible Mould Process
The transition period between the mixing of concrete and the begin of setting increasingly receives attention, as special production processes can be developed with tailor-made fresh state characteristics. In this publication the two processes of 3D Concrete Printing (3DCP) and the production with the Flexible Mould Process (FMP) are discussed and compared. The FMP is a relatively new manufacturing method that was developed to allow the efficient production of curved thin concrete panels for cladding or structural use. The term ‘flexible’ refers to the deformation into the required curved shape of both the compliant mould surface and the fresh concrete contained by the mould shortly after casting. After that deformation, both the mould and the concrete are left for further hardening until demoulding is possible. The development of the 3DCP technique progresses fast, hereby new perspectives are gained with regard to mix design, production and structural performance. Sideway, test methods need to be developed or re-evaluated. The early age strength and strain capacity are important parameters for both processes, although they are not the same with regard to magnitude, period or time after mixing. Both processes can be executed within an open window and with specific boundary conditions only. This publication discusses and compares both processes. The implications of these recent findings are translated to practical aspects with regard to the production with the FMP.Accepted Author ManuscriptConcrete StructuresApplied Mechanic
Legislative changes to the Foreclosure Mediation Program / by Kristen Miller, senior legislative attorney
1 online resource (8 pages)"December 1, 2020."Discusses changes to the state's Foreclosure Mediation Program (FMP) since its inception in 200
Foreclosure Mediation Program / analyst: Kristen Miller
1 online resource (2 unnumbered pages)"November 30, 2020."Discusses the state's Foreclosure Mediation Program (FMP), which aims to help certain borrowers and lenders reach an agreed-upon resolution of a mortgage foreclosure action by having state Judicial Branch employees work as mediator
Application of the random storm method to global structural loading on fixed offshore structures
In conventional practice extreme design conditions for offshore structures are obtained very conservatively by extrapolating 3-hourly statistics of wind, wave and current data to a (say) 100 year return level, assuming that the 100-year extremes occur simultaneously and act in the same direction. This study involves an alternative approach accounting for the joint probability and directionality of wind, waves and currents. Design conditions are generated from the statistics of extreme global loads in individual storms, resulting in a 100-year base shear and overturning moment. Treatment in terms of storms avoids the dificulties arising from correlation between successive 3-hour intervals. The base shear forces are determined by a loading model, an analytical relationship between base shear and crest height, and most of the important environmental parameters. The inverse of the crest height-base shear relation is used to derive from the crest elevation statistics a cumulative distribution of the extreme base shear for individual storms. This is done for every storm from the northwest quadrant in the 25 years of hindcast data base in the North European Storm Study (NESS) for one location in the northern North Sea. Each storm is characterized by its most probable extreme base shear value, Fmp . These representative storm parameters are used to describe the short term and the, long term statistics of extreme base shear. It has been found that the short term variability of all storms can be well represented by one model distribution, p(f l Fmp ). With this probability distribution for the model storm, in combination with the results of a new asymptotic method estimating the probability distribution of Fmp , P(Fmp ), the probability distribution of the largest base shear for any random storm, p(f l any storm), is determined. The same analysis is followed for overturning moment. Since the average arrival rate of the storms is known the probability distribution of the largest base shear (and overturning moment) with a return period of 100 years, f100 (and m100 ), can be deduced. From a back calculation it appears that the resulting design loads are caused by combinations of extreme wind, waves and currents, which are significantly less severe than the values conventionally used for design.Hydraulic EngineeringCivil Engineering and Geoscience
A Better Way to Forecast: Using Statistical Process Control and an Intuitive User Interface to Redefine Intel's Forecasting Cadence
abstract: During the summer of 2016 I had an internship in the Fab Materials Planning group (FMP) at Intel Corporation. FMP generates long-range (6-24 months) forecasts for chemical and gas materials used in the chip fabrication process. These forecasts are sent to Commodity Mangers (CMs) in a separate department where they communicate the forecast and any constraints to Intel suppliers. The intern manager of the group, Scott Keithley, created a prototype of a model to redefine how FMP determines which materials require a forecast update (forecasting cadence). However, the model prototype was complex to use, not intuitive, and did not receive positive feedback from the rest of the team or external stakeholders. This thesis will detail the steps I took in identifying the main problem the model was intended to address, how I approached the problem, and some of the major iterations I took to modify the model. It will also go over the final model dashboard and the results of the model use and integration. An improvement analysis and the intended and unintended consequences of the model will also be included. The results of this model demonstrate that statistical process control, a traditionally operational analysis, can be used to generate a forecasting cadence. It will also verify that an intuitive user interface is vital to the end user adoption and integration of an analytics based model into an established process flow. This model will generate an estimated time savings of 900 hours per year as well as giving FMP the ability to be more proactive in its forecasting approach
Electronic Textbook in Mathematical Methods of Physics
Title: Electronic Textbook in Mathematical Methods of Physics Author: Bc. Petr Kolář Department: Department of Physics Education FMP CU Supervisor: RNDr. Vojtěch Žák, Ph.D., Department of Physics Education FMP CU Abstract: The objective of this work is to continue in Electronic Textbook in Introduction of Mathematical Methods of Physics and to create an other studing text not only for the first grade students (future physics teachers) at FMP CU but also for other students of physical and technical domains at universities which should help them with an introduction into mathematic necessary in physics. The main matter of this work is based on preparations and texts of dr. A Hladík, prof. J. Podolský and dr. V. Žák for lectures and exercises of subject Introduction of Mathematical Methods of Physics and Mathematical Methods in Physics I. The author's experience are also reflected. Equally, a small recherche of an existence and an availability of other sources pursuing given matters has been done. Some of these sources are recommended in this work. The created text should help readers with elementary matter of antiderivatives and Riemann integrals, double and triple integrals and integrals of the first kind with a special consideration to their applications in physics. A contribution of this and previous work for..
CLE PERCOLATIONS
Conformal loop ensembles (CLEs) are random collections of loops in a simply connected domain, whose laws are characterized by a natural conformal invariance property. The set of points not surrounded by any loop is a canonical random connected fractal set — a random and conformally invariant analog of the Sierpinski carpet or gasket. In the present paper, we derive a direct relationship between the CLEs with simple loops (CLE κ for κ ∈ ( 8 / 3 , 4 ) , whose loops are Schramm’s SLE κ -type curves) and the corresponding CLEs with nonsimple loops (CLE κ′ with κ′ := 16 /κ ∈ ( 4 , 6 ) , whose loops are SLE κ′ -type curves). This correspondence is the continuum analog of the Edwards–Sokal coupling between the q -state Potts model and the associated FK random cluster model, and its generalization to noninteger q . Like its discrete analog, our continuum correspondence has two directions. First, we show that for each κ ∈ ( 8 / 3 , 4 ) , one can construct a variant of CLE κ as follows: start with an instance of CLE κ ′ , then use a biased coin to independently color each CLE κ′ loop in one of two colors, and then consider the outer boundaries of the clusters of loops of a given color. Second, we show how to interpret CLE κ′ loops as interfaces of a continuum analog of critical Bernoulli percolation within CLE κ carpets — this is the first construction of continuum percolation on a fractal planar domain. It extends and generalizes the continuum percolation on open domains defined by SLE₆ and CLE 6 . These constructions allow us to prove several conjectures made by the second author and provide new and perhaps surprising interpretations of the relationship between CLEs and the Gaussian free field. Along the way, we obtain new results about generalized SLEκ (ρ) curves for ρ < − 2, such as their decomposition into collections of SLE κ-type ‘loops’ hanging off of SLE κ′-type ‘trunks’, and vice versa (exchanging κ and κ′ ). We also define a continuous family of natural CLE variants called boundary conformal loop ensembles (BCLEs) that share some (but not all) of the conformal symmetries that characterize CLEs, and that should be scaling limits of critical models with special boundary conditions. We extend the CLE κ /CLE κ′ correspondence to a BCLE κ /BCLE κ′ correspondence that makes sense for the wider range κ ∈ ( 2 , 4 ] and κ′ ∈[ 4 , 8
Bioaccessibility of antioxidants and fatty acids from Fucus spiralis
Acknowledgments: This work was supported by the project AQUAMAX “Innovative aquaculture feeds on the basis of algae bioactives’ prospection and extraction” (16-02-01-FMP-0047) and by the Integrated Program of SR and TD“Smart Valorization of Endogenous Marine Biological Resources Under a Changing Climate” (reference Centro-01-0145-FEDER- 000018), co-funded by Centro 2020 program, Portugal 2020, European Union, through the European Regional Development Fund and the support of Fundação para a Ciência e Tecnologia (FCT), through the strategic project UID/MAR/04292/2019 granted to MARE. This work was also supported by the following Post Doctoral Grants: Ref.: SFRH/BPD/102689/2014 (“Fundação para a Ciência e a Tecnologia”, FCT) for the author Carlos Cardoso; Ref.: SFRH/BPD/64951/2009 (FCT) and DIVERSIAQUA(MAR2020)forthe author Cláudia Afonso.Fucus spiralis is an edible brown seaweed (SW) found in the Portuguese Coast. It has been reported to have high antioxidant activity, which may elicit a potential use for the food industry. However, little information is available on how the SW behaves during the digestive process and how the freeze-drying process might affect the bioaccessibility of the di erent compounds. Therefore, antioxidant activity, total polyphenols, lipid, and fatty acid contents were measured before and after in vitro simulation of the human digestive process, both in fresh and freeze-dry SW. F. spiralis had a lipid content of 3.49 +- 0.3% of dry weight (DW), which is a usual amount described for this SW genus. The total lipid bioaccessibility was 12.1 +- 0.1%. The major omega-3 fatty acid detected was eicosapentaenoic acid, 7.5 +- 0.1%, with a bioaccessibility percentage of 13.0 +- 1.0%. Four different methods—total phenolic content (TPC), ferric reducing antioxidant power (FRAP), oxygen radical
absorbance capacity (ORAC), and 1,1-diphenyl-2-picryl-hydrazyl (DPPH)—were used to assess the antioxidant activity of F. spiralis. The bioaccessibility of the antioxidants studied, ranged between 42.7% and 59.5%, except the bioaccessibility of polyphenols in freeze-dried SW (23.0% +- 1.0%), suggesting that the freeze-drying process reduces the bioaccessibility of these compounds.info:eu-repo/semantics/publishedVersio
