Search results for "WC"

Sea breeze thunderstorms in the eastern Iberian Peninsula. Neighborhood verification of HIRLAM and HARMONIE precipitation forecasts

2014

In this study we investigated sea breeze thunderstorms with intense convective activity (i.e., heavy rainfall, hail and gusty winds) that occurred over the eastern Iberian Peninsula (Spain) and were missed by the operational HIRLAM model. We used two grid-spacing setups (5.0. km and 2.5. km) of the hydrostatic HIRLAM model, and the non-hydrostatic spectral HARMONIE suite (2.5. km), to simulate isolated convection associated with sea breezes. The overall aim is to estimate the ability of these three experimental setups, in particular the HARMONIE model as the forthcoming operational numerical weather prediction in most European Weather Services, to correctly simulate convective precipitation…

On the impact of the heat transfer modelling approach on the prediction of EU-DEMO WCLL breeding blanket thermal performances

2020

Abstract The Water-Cooled Lithium-Lead Breeding Blanket is a key component of a fusion power plant, in charge of ensure Tritium production, shield Vacuum Vessel and magnets and remove the heat power deposited by radiation and particles arising from plasma. The last function is fulfilled by First Wall and Breeding Zone independent cooling systems. Several layouts of BZ coolant system have been investigated in the last years to identify a configuration that might guarantee EUROFER temperature below the limit (550 °C) and good thermal-hydraulic performances (i.e. water outlet temperature of 328 °C). A research activity is conducted to study and compare different modelling approaches to simulat…

Multi-user interference mitigation under limited feedback requirements for WCDMA systems with base station cooperation

2016

One of the techniques that has been recently identified for dealing with multi-user interference (MUI) in future communications systems is base station (BS) cooperation or joint processing. However, perfect MUI cancellation with this technique demands severe synchronization requirements, perfect and global channel state information (CSI), and an increased backhaul and signaling overhead. In this paper, we consider a more realistic layout with the aim of mitigating the MUI, where only local CSI is available at the BSs. Due to synchronization inaccuracies and errors in the channel estimation, the system becomes partially asynchronous. In the downlink of wideband code division multiple access …

In vitro expansion and analysis of T lymphocyte microcultures obtained from the vaccination sites of cancer patients undergoing active specific immun…

1993

In order to understand further the effects of Newcastle-disease-virus(NDV)-modified tumour vaccines we investigated the feasibility of isolating lymphocytes from the site of injection of patients undergoing postoperative active specific immunization (ASI) with autologous NDV-modified tumour cells. Delayed-type-hypersensitivity(DTH)-like reactions from five cancer patients were surgically removed, minced and the tissue particles were digested with collagenase and DNase. Lymphoid cells recovered were expanded in a highly efficient limiting-dilution analysis system optimized for T cell growth [Moretta et al. (1983) J Exp Med 157: 743] and lymphocyte microcultures (clonal probability > 0.8) cou…

Multiphysics Optimization for Water-Cooled Breeding Blanket Design Enhancement

2021

The commercial feasibility of the first fusion power plant generation adopting D-T plasma is strongly dependent upon the self-sustainability in terms of tritium fueling. Within such a kind of reactor, the component selected to house the tritium breeding reactions is the breeding blanket, which is further assigned to heat power removal and radiation shielding functions. As a consequence of both its role and position, the breeding blanket is heavily exposed to both surface and volumetric heat loads and, hence, its design requires a typical multiphysics approach, from the neutronics to the thermo-mechanics. During last years, a great deal of effort has been put in the optimization of the breed…

Preliminary design of a Water Cooled Lithium Lead blanket concept for DEMO reactor

2013

Analīze un migrācija no WCF servisiem uz API servisiem un API servisu izstrāde apdrošināšanas sistēmā

2020

Bakalaura darbā “Analīze un migrācija no WCF servisiem uz API servisiem un API servisu izstrāde apdrošināšanas sistēmā” tiek pētītas divas tīmekļa servisu izstrādes tehnoloģijas - WCF (angl. Windows Communication Foundation) un API (angl. Application Programming Interface), tiek salīdzināti šo tehnoloģiju parametri (piemēram, tīmekļa protokolu atbalsts, konfigurācijas veids, drošība) un to sniegtās iespējas. Darba praktiskās daļas ietvaros tiek izstrādāti tīmekļa servisi esošā apdrošinātāja polišu pārvaldības sistēmā, izmantojot API tehnoloģiju. Projekts realizēts pēc spējās izstrādes metodoloģijas. Programmatūras izstrādes procesā izmantots ASP.NET Web API atklātā pirmkoda ietvars, program…

Early Childhood Education and Care System in Finland

2017

In Finland, Early Childhood Education and Care (ECEC) includes day care arrangements offered to families (care) along with goal-oriented early childhood education (early education and teaching) provided for children prior to transitioning to primary education. ECEC is therefore seen to build a coherent starting phase within the continuum of lifelong learning. ECEC follows the “educare” principle, which emphasizes the simultaneous consideration for children’s education, teaching, and care as the foundation of pedagogical activity, which is at the same time strongly rooted in the idea of learning and development as a holistic experience. The aim of this article is to provide an overview of th…

Early-stage thermal performance design of thermo-active walls implemented in underground infrastructures

2022

Abstract Energy geostructures (EGs) represent an innovative technology in the sustainable energy agenda and are useful for satisfying the energy needs of the built environment. They are usually involving geostructures such as piles, walls, tunnels, shafts, and sewers. The application of such technology to infrastructure projects may have considerable thermal potential because of the large surfaces that can be thermally activated. This study focuses on thermo-active walls (energy walls, EWs), which are retaining structures used to sustain the sides of excavations. Key features related to their thermal design are examined, and a design methodology is proposed. The heat-exchange modes involvin…

A method for measuring low-weight carboxylic acids from biosolid compost

2006

Concentration of low-weight carboxylic acids (LWCA) is one of the important parameters that should be taken into consideration when compost is applied as soil improver for plant cultivation, because high amounts of LWCA can be toxic to plants. The present work describes a method for analysis of LWCA in compost as a useful tool for monitoring compost quality and safety. The method was tested on compost samples of two different ages: 3 (immature) and 6 (mature) months old. Acids from compost samples were extracted at high pH, filtered, and freeze-dried. The dried sodium salts were derivatized with a sulfuric acid–methanol mixture and concentrations of 11 low-weight fatty acids (C1–C10) were a…