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This paper demonstrates a wideband 2.4 GHz $2\times 9$ -bit Cartesian radio-frequency digital-to-analog converter (RFDAC). Active-under-coil integration is introduced in the physical implementation, where all key active circuitry is located underneath the matching-network transformer, achieving a core area of merely 0.35 mm2. An 8× analog linear interpolation at the RF rate is proposed to suppress
This publication accompanies the exhibition of the same title co-produced by MACBA Museu d’Art Contemporani de Barcelona and Sharjah Art Foundation of the United Arab Emirates. The book brings together projects that this French-Moroccan artist has produced over the last ten years, among them films, video installations, photographs and documentary material. The publication also includes documentati
The harmonic oscillator is a truly irreplaceable as well as ubiquitous analog integrated circuit. Starting from the basics of its CMOS implementation, we will discuss the phase noise of the harmonic oscillator in some detail, where the intrinsic large-signal operation mandates a time-variant analysis. This will be followed by a survey of the most popular design techniques enabling a low phase nois
This special section of the IEEE OPEN JOURNAL OF CIRCUITS AND SYSTEMS (OJCAS) is dedicated to highlight the state-of-the-art research progress on circuits, systems, and algorithms associated with the design of beyond 5G (B5G) and 6G wireless systems.
We present the application of two fibre-optic-coupled time-resolved spectrofluorometers and a compact steady-state diffuse reflected light/fluorescence spectrometer to in vivo and ex vivo studies of skin cancer and osteoarthritis. In a clinical study of skin cancer, 27 lesions on 25 patients were investigated in vivo before surgical excision of the region measured. Preliminary analysis reveals a s
Challenges of insect monitoring is revised. I present our new lidar, and use remote dark-field monitoring as well as hyperspectral push-broom imaging to argue why lidar entomology is significantly improved when implemented at telecom wavelengths.
A CW-laser radar system developed for combustion diagnostics is described. It is based on triangulation to attain range information. Some initial results from measurements in sooting flames are shown and some future perspectives are discussed.
Worldwide, farmers use insecticides to prevent crop damage caused by insect pests, while they also rely on insect pollinators to enhance crop yield and other insect as natural enemies of pests. In order to target pesticides to pests only, farmers must know exactly where and when pests and beneficial insects are present in the field. A promising solution to this problem could be optical sensors com
Electroactive polymers are frequently used in engineering applications due to their ability to change their shape and properties under the influence of an electric field. This process also works vice versa, such that mechanical deformation of the material induces an electric field in the EAP device. This specific behavior makes such materials highly attractive for the construction of actuators and
Artikeln undersöker Martin Luthers reception av Erasmus Novum Testamentum omne som översättare av texten i andra upplagan (1519) och som engagerad läsare av Annotationerna i den fjärde upplagan (1527). Man drar slutsatsen att Luthers primära Vorlage för hans tyska översättning av Galaterbrevet var den grekiska kolumnen i Erasmuss andra upplaga (1519), medan hans översättning av Hebréerbrevet huvudThe article examines Martin Luther’s reception of Erasmus’ Novum Testamentum omne as a translator of the text of the second edition (1519) and as an engaged reader of the Annotations in the fourth edition (1527). It is concluded that Luther’s primary Vorlage for his German translation of Galatians was the Greek column of Erasmus’ second edition (1519), while his translation of Hebrews mainly refle
Background Orthognathic surgery addresses facial aesthetics and function in patients with dentofacial deformities. It is associated with changes in upper airway volume (UAV). If changes in UAV is perceived by asymptomatic patients is unclear. Purpose The purpose was to measure associations between changes in UAV and patient-reported benefits using patient-reported outcome measures (PROM). Study de
Cuttings of text and image come together to form Sara Leydon’s Baroness de Lancinena (1990) and Alice Kyteler (1990). Each a reference to a woman either identified or accused of practicing witchcraft, these two collages are part of a series first shown in a 1990 solo exhibition titled Conviction at Artspeak. Their history in this city is considerable, living long-term in the collection of Christos
Bricolage has its origins in anthropology, with the bricoleur identified as someone who develops a practice via process, understanding their environs by using what is at hand. In an art historical context, bricolage has no single strategy, methodology, or trajectory. This exhibition identifies contemporary practices by Em Hedditch (1972, UK), Lili Huston-Herterich (1988, US), and Jean-Paul Kelly (
For me, life in this city begins and ends with artist-initiated networks, where energies and programmes are constantly opening and ending, keeping pace with the rate at which artist’s studios are closed and relocated. These networks establish where work is developed, shown, or both, and they affirm what is missing as much as what is made. The affective affinities that enable these associations als
To journal is to have a practice of everyday life, and also to produce a portrait. A journal isn’t only a means to communicate with others – it also sustains us in the moments when we fnd ourselves alone – either by choice, circumstance or default. Tojournal is to persist, to document and maintain a history – a history that isn’t always seen, supported or understood. "going to go out now" stages a
Start together – then separate.“One is insidethen outside what one has been insideOne feels emptybecause there is nothing inside oneselfOne tries to get inside oneself that inside of the outside that one was once inside once one tries to get oneself inside what one is outside:to eat and to be eatento have the outside inside and to be inside the outside”¹While knots can be complicated to untangle t
Independent curator Jacob Korczynski was invited to review the film collections of both the Stedelijk and EYE, to discern similar strategies and approaches between the historical Russian Avant-Garde and the post-war neo-avant-garde, including the work of contemporary video artists. The two screening sections of the program feature films from Malevich’s contemporaries Sergei Eisenstein and Dziga Ve
Over the past decade, digital media has transformed how we take pictures, how existing images circulate in the world and how histories are written. While many artists have questioned where to locate images in our contemporary context, their ongoing presence in museums and galleries underscores that—alongside more dematerialized forms—images remain with us physically.Surface Tension presents recent
Increasing demands to meet regulations on combustion emissions and their environmental impact, and the need to improve their efficiency in different applications, have been the centre of focus in research and industry for decades. Optical and laser diagnostics have been proven to be amongst the best available tools due to their remote nature and non-intrusiveness, high spatial and temporal resolut
