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There is a pressing need, particularly in the field of drug discovery, for general methods that will enable direct coupling of tertiary alkyl fragments to (hetero)aryl halides. Herein a uniquely powerful and simple set of conditions for achieving this transformation with unparalleled generality and chemoselectivity is disclosed. This new protocol is placed in context with other recently report
There are high demands on companies today to survive when competition is high and that also applies to companies that manufacture ethylene oxide. The raw material in the production of ethylene oxide is ethylene and oxygen where ethylene is the largest cost. To facilitate the reaction a catalyst, which increases the reaction rate, is used. The catalyst has a major influence on the efficiency and ec
https://www.thm.lu.se/observe-imitate-be-yourself-2 - 2026-05-07
An ambient wall with a window were studied with both theoretical analyses and measurements performedunder conditions with natural climate. The method used wes to estimate the heat flow through wall and windowfrom measured temperatures and solar radiation. The longwave radiation was calculated from surface temperatures. The convective heat transfer was caculated as the difference between the heat f
2025-12-01 Tablets under production, expected for calibration end of December. 2025-07-29 Test batch expected to arrive for calibration and quality control mid August. 2025-06-12 Our manufacturer are waiting for one tablet ingredient. 2025-01-22 We will produce a test batch with a manufacturer in Sweden. 2024-10-18 We currently have no Lycopodium tablets for sale. Our tablet manufacturer has shut
https://www.geologi.lu.se/service/pollen-tablets - 2026-05-07
This paper deals with the exterior Calderón operator for Lipschitz surfaces. We present a new approach of nding the norm of the exterior Calderón operator for this class of surfaces. The basic tool in the treatment is the set of eigenfunctions and eigenvalues of the Laplace-Beltrami operator for the surface. The norm is obtained as an eigenvalue problem of a quadratic form containing the exterior
The central question addressed in this thesis is how to make the free-electron laser (FEL) more efficient. In recent years, coherent diffraction imaging provides an important motivation for efficiency enhancement. This is because a more efficient FEL process enables converting a larger fraction of the electron beam's power into optical power. By increasing the average optical power to the terawatt
Globalization has resulted in more segments and product configurations to meet the needs of various customers in different markets. For manufacturers to keep up, the operations footprint has become more global to source from the most appropriate suppliers but also have manufacturing sites in close proximity to the main local markets. The relationship between the products offered, in particular the
