Sökresultat

Filtyp

Din sökning på "*" gav 529814 sökträffar

Detecting blood path disruption in extracorporeal blood processing

A device monitors a blood path from a blood vessel access of a human subject through an extracorporeal blood processing apparatus and back to the blood vessel access. A pumping device in the blood path is operable to pump blood through the blood path from the blood withdrawal device to the blood return device. The monitoring device obtains pressure data from a pressure sensor arranged upstream of

Translating feed-forward nets to SOM-like maps

A major disadvantage of feedforward neural networks is still the difficulty to gain insight into their internal functionality. This is much less the case for, e.g., nets that are trained unsupervised, such as Kohonen’s self-organizing feature maps (SOMs). These offer a direct view into the stored knowledge, as their internal knowledge is stored in the same format as the input data that was used fo

Distributed Model Predictive Control with Suboptimality and Stability Guarantees

Theory for Distributed Model Predictive Control (DMPC) is developed based on dual decomposition of the convex optimization problem that is solved in each time sample. The process to be controlled is an interconnection of several subsystems, where each subsystem corresponds to a node in a graph. We present a stopping criterion for the DMPC scheme that can be locally verified by each node and that g

Direct and inverse scattering problems in dispersive media-Green's functions and invariant imbedding techniques

Transient electromagnetic wave propagation in a dispersive medium is reviewed. The medium is assumed to be 1) linear, 2) invariant to time translations, 3) causal, 4) continuous, and 5) isotropic. The constitutive relations are then uniquelyrepresen ted bya Riemann-Stieltjes integral in the time variable. The kernel in this convolution is the susceptibilityk ernel. Two explicit examples of mathema

Growth accounting in times of turbulence and death: efficiency, technology, capital accumulation and human capital 1929-1950

We employ a non-parametrical approach to growth accounting (Data Envelopment Analysis, DEA) to disentangle the proximate sources of labour productivity growth in 41 nations between 1929 and 1950 by decomposing productivity growth into four components: technological change; efficiency catch-up (movements towards the production frontier), capital accumulation and human capital accumulation. We show

Cryogels Based on Crosslinked Cells as Green Biocatalysts for Biotechnology

Popular Abstract in English Popular science Microbial cells are small and difficult to handle in industrial processes, especially if they are to be reused subsequent batches. In order to make them easier to handle, these cells can be attached to a solid support, by so-called immobilization. This provides particles of sizes that are easy to filter and reuse. However, immobilization is associated wiAbstract Due to the finite nature of fossil resources and their environmental impact, such as greenhouse gases and climate change, the bio-based production of chemicals, materials and fuels is the subject of extensive research in industrial biotechnology. Biotransformation and fermentation are considered to be mild, “green” processes that make use of effective and reliable biocatalysts to provide

Projectile fragmentation wall for CHICSi detector

The Forward Wall Detector (FWD) is designed to identify projectile-like fragments from heavy-ion reactions at the CELSIUS storage ring in Uppsala, Sweden. FWD covers the polar angle from 3.9° to 11.7° with geometrical efficiency of 81%. The single-detection module can be either of phoswich type (10 mm fast plastic+80 mm CsI(Tl)) or ΔE−E telescope (750 μm Si+80 mm CsI(Tl)). It is expected to have c