Search results for "Printing"
showing 10 items of 532 documents
Selective Laser Sintering of Metal-Organic Frameworks: Production of Highly Porous Filters by 3D Printing onto a Polymeric Matrix.
2019
Metal‐organic frameworks (MOFs) have raised a lot of interest, especially as adsorbing materials, because of their unique and well‐defined pore structures. One of the main challenges in the utilization of MOFs is their crystalline and powdery nature, which makes their use inconvenient in practice. Three‐dimensional printing has been suggested as a potential solution to overcome this problem. We used selective laser sintering (SLS) to print highly porous flow‐through filters containing the MOF copper(II) benzene‐1,3,5‐tricarboxylate (HKUST‐1). These filters were printed simply by mixing HKUST‐1 with an easily printable nylon‐12 polymer matrix. By using the SLS, powdery particles were fused t…
The acute effects of different high-intensity conditioning activities on sprint performance differ between sprinters of different strength and power …
2021
The purpose of the present study was to examine the effect of different conditioning activities (CAs) on short-term increase in sprint performance. In twelve male sprinters (21.1+2.6 years, 100 m performance: 11.5+0.6 s) their body composition, half squat maximum strength, 100 m sprinting and countermovement jump performances were evaluated. The performance of a 50 m sprint (splits at 10 m, 30 m and 50 m) was evaluated before and 5, 10 and 15 min after four postactivation performance enhancement CAs on different occasions: [1] 3 sets x 4 s maximum isometric half squat (IHF), [2] 3 sets x 3 consecutive countermovement jumps (cCMJs), [3] 3 repetitions x 30 m overspeed sprinting (OVSP) and [4]…
Mariano Cabrerizo: literary initiatives and liberal energy in the time of Fernando VII
2018
La actividad del editor Mariano Cabrerizo ilumina el itinerario de la novela y la burguesía. El espíritu exaltado del Trienio lo condujo a la cárcel y al destierro, lo que supuso un duro golpe para la producción editorial y la economía familiar. Pero gracias a la inteligencia y al oportunismo pudo relanzar su negocio por medio de la Colección de novelas, poderoso instrumento en la difusión de la narrativa europea y española. Las suscripciones de los particulares, de las grandes instituciones y de las bibliotecas privadas ayudaron a consolidar las iniciativas comerciales y literarias de Cabrerizo. Los avatares personales condujeron al famoso editor a una nueva situación de bonanza económica …
Drug Screening by Inkjet Printing Microarrays
2010
Ink depletion-free printing of phospholipids micropatches
2021
Rappresentazioni tattili
2020
Sebbene molto spesso le persone con disabilità debbano accontentarsi di vivere parzialmente alcune esperienze, da diversi anni è aumentata l’attenzione dei siti museali verso la realizzazione di progetti e percorsi dedicati che consentano una fruizione tattile di opere e manufatti ai disabili visivi. Il contributo presenta due casi studio, che utilizzano modelli 3D per installazioni tattili. In presenza di deficit visivo, è importante rafforzare le facoltà percettive connettendo il tatto con i sensi residui e fornendo stimoli cognitivi diversi e paralleli. L’approccio multisensoriale, tattile e uditivo, realizzato grazie alla commistione tra modelli 3D e componenti elettroniche, favorisce l…
Selaimen sormenjälkitunnistamisen torjunta käyttöjärjestelmäavusteisella virtualisoinnilla
2017
Selaimen sormenjälkitunnistaminen mahdollistaa käyttäjien seurannan käyttäjien yksityisyyttä luokkaavasti. Tutkielmassa selvitetään voidaanko käyttöjärjestelmäavusteisilla virtualisointiteknologioilla vastata selaimen sormenjälkitunnistamisen torjunnan asettamiin haasteisiin. Tutkielmassa havaittiin neljä eri haastetta selaimen sormenjälkitunnistamisen torjunnalle. Tutkielma keskittyy Linux-kernelin tukemiin käyttöjärjestelmäavusteisiin virtualisointiteknologiohin, jotka mahdollistavat ohjelmistokonttien toteuttamisen. Preventing browser fingerprinting using operating system level virtualization. Browser fingerprinting enables tracking of users in a way that violates users' privacy. In this…
Application of 3D printed scavengers for improving the accuracy of single-particle inductively coupled plasma mass spectrometry analyses of silver na…
2023
The determination of silver nanoparticles (Ag NPs) with single-particle inductively coupled plasma mass spectrometry can be severely interfered with coexisting dissolved silver causing high background signals, which can lead to inaccurate quantification of NP size and particle concentration. In this paper, chemically active and reusable 3D printed scavengers are applied for highly efficient dissolved silver removal in Ag NP dispersions, allowing more accurate determination of particle concentration and size. Selective laser sintering was used for constructing the porous 3D scavengers constituting of polystyrene used as a supporting material and ion-exchange material SiliaBond Tosic acid (TA…
Cluster-Based RF Fingerprint Positioning Using LTE and WLAN Outdoor Signals
2015
In this paper we evaluate user-equipment (UE) positioning performance of three cluster-based RF fingerprinting methods using LTE and WLAN signals. Real-life LTE and WLAN data were collected for the evaluation purpose using consumer cellular-mobile handset utilizing ‘Nemo Handy’ drive test software tool. Test results of cluster-based methods were compared to the conventional grid-based RF fingerprinting. The cluster-based methods do not require grid-cell layout and training signature formation as compared to the gridbased method. They utilize LTE cell-ID searching technique to reduce the search space for clustering operation. Thus UE position estimation is done in short time with less comput…
An efficient cluster-based outdoor user positioning using LTE and WLAN signal strengths
2015
In this paper we propose a novel cluster-based RF fingerprinting method for outdoor user-equipment (UE) positioning using both LTE and WLAN signals. It uses a simple cost effective agglomerative hierarchical clustering with Davies-Bouldin criterion to select the optimal cluster number. The positioning method does not require training signature formation prior to UE position estimation phase. It is capable of reducing the search space for clustering operation by using LTE cell-ID searching criteria. This enables the method to estimate UE positioning in short time with less computational expense. To validate the cluster-based positioning real-time field measurements were collected using readi…