Searched for: subject:"delta"
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Heidary Shalmany, S. (author)
Coulomb counting is a widely used method to estimate battery state-of-charge (SoC). It involves measuring and integrating the battery’s current to determine its net charge flow.
doctoral thesis 2019
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Xie, S. (author), Theuwissen, A.J.P. (author)
This paper analyzes and compensates for process and temperature dependency among a (Complementary Metal Oxide Semiconductor) CMOS image sensor (CIS) array. Both the analysis and compensation are supported with experimental results on the CIS’s dark current, dark signal non-uniformity (DSNU), and conversion gain (CG). To model and to...
journal article 2019
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van Loon-Steensma, J.M. (author), Vellinga, Pier (author)
This article describes and analyzes the reintroduction of the “wide green dike” in the Netherlands. It is a noteworthy example of implementation of an innovation in long-term strategic delta planning. The Dutch Delta Program was central herein. Pursuing its ambition to make the Netherlands climate-proof, the Delta Program invited a diverse set...
journal article 2019
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Meng, M. (author), Dabrowski, M.M. (author), Tai, Y. (author), Stead, D. (author), Chan, F.K.S. (author)
Integration of flood risk in spatial planning is increasingly seen as a way to enhance cities’ resilience to the growing flood hazards, albeit its operationalisation remains challenging. This study aims to explain the reasons for this difficulty through the case study of Guangzhou, a Chinese delta city that is highly vulnerable to coastal,...
journal article 2019
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Jiang, H. (author), Nihtianov, S. (author), Makinwa, K.A.A. (author)
to block dc common-mode voltages, the bridge’s bias voltage may exceed the ROIC’s supply voltage, allowing...
journal article 2019
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Gao, Weilun (author), Shao, Dongdong (author), Wang, Zhengbing (author), Nardin, William (author), Rajput, Prateek (author), Yang, W. (author), Sun, Tao (author), Cui, Baoshan (author)
Rivers, regardless of their scales and geographic locations, are characterized with natural and human-induced variability in their discharges. While previous studies have established the effects of both interannual and intra-annual variabilities of unsteady river discharge on delta morphological evolution, the long-term cumulative effects of...
journal article 2019
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Mabrouk, Marmar (author), Jonoski, Andreja (author), Oude Essink, Gualbert H.P. (author), Uhlenbrook, S. (author)
As Egypt's population increases, the demand for fresh groundwater extraction will intensify. Consequently, the groundwater quality will deteriorate, including an increase in salinization. On the other hand, salinization caused by saltwater intrusion in the coastal Nile Delta Aquifer (NDA) is also threatening the groundwater resources. The aim...
journal article 2018
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li Piani, T. (author), Weerheijm, J. (author), Koene, L. (author), Sluijs, L.J. (author)
This paper presents a constitutive relationship to describe the uniaxial response in statics of brick and mortar samples of Adobe. This defines a traditional masonry whose components are made of soil mixture reinforced with fibres. Only recently Adobe has started attracting scientific attention, primarily as a consequence of the dramatic...
abstract 2018
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Ngo, Q.H. (author), Pathirana, Assela (author), Zevenbergen, C. (author), Ranasinghe, D. (author)
Probabilistic flood forecasting requires flood models that are simple and fast. Many of the modelling applications in the literature tend to be complex and slow, making them unsuitable for probabilistic applications which require thousands of individual simulations. This article focusses on the development of such a modelling approach to...
journal article 2018
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Ferretti, F. (author), Mazzotti, C. (author), Esposito, R. (author), Rots, J.G. (author)
Masonry is a composite material, whose behavior is strongly influenced by the presence of vertical and horizontal mortar joints, weak elements along which the shear failure usually occurs. The scope of the present work was to investigate factors that could affect the shear-sliding behavior of masonry, by performing numerical simulations of...
conference paper 2018
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Sayol Espana, J.M. (author), Marcos, M. (author)
This study presents a novel methodology to estimate the impact of local sea level rise and extreme surges and waves in coastal areas under climate change scenarios. The methodology is applied to the Ebro Delta, a valuable and vulnerable low-lying wetland located in the northwestern Mediterranean Sea. Projections of local sea level accounting...
journal article 2018
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Chen, Peng (author), Huang, Xiongchuan (author), Chen, Y. (author), Wu, Lianbo (author), Staszewski, R.B. (author)
To characterize an on-chip programmable delay in a low-cost and high-resolution manner, a built-in self-test based on a first-order ΔΣ time-to-digital converter with self-calibration is proposed and implemented in TSMC 28-nm CMOS. The system is self-contained, and only one digital clock is needed for the measurements. A...
journal article 2018
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Pan, S. (author), Makinwa, K.A.A. (author)
This paper describes a compact, energy efficient, resistor-based temperature sensor that can operate over a wide temperature range (-55 °C-125 °C). The sensor is based on a Wheatstone bridge (WhB) made from silicided poly-silicon and non-silicided poly-silicon resistors. To achieve both area and energy efficiencies, the current output of the WhB...
journal article 2018
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Chavarrias Borras, V. (author), Blom, A. (author), Orru, C. (author), Martín-Vide, Juan Pedro (author), Viparelli, Enrica (author)
Laboratory experiments were conducted on a sand-gravel Gilbert delta to gain insight on its dynamics under varying base level. Base level rise results in intensified aggradation over the topset, as well as a decrease in topset slope and topset surface coarsening, the signals of which migrate in an upstream direction. Preferential deposition...
journal article 2018
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Karmakar, S. (author), Gonen, B. (author), Sebastiano, F. (author), van Veldhoven, Robert (author), Makinwa, K.A.A. (author)
This paper presents a dynamic zoom analog-to-digital converter for use in low-bandwidth (<1 kHz) instrumentation applications. It employs a high-speed asynchronous successive approximation register (SAR) ADC that dynamically updates the references of a fully differential Δ Σ ADC. Compared to previous zoom ADCs,...
journal article 2018
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Pan, S. (author), Luo, Yanquan (author), Heidary Shalmany, S. (author), Makinwa, K.A.A. (author)
This paper describes a high-resolution energy-efficient CMOS temperature sensor, intended for the temperature compensation of MEMS/quartz frequency references. The sensor is based on silicided poly-silicon thermistors, which are embedded in a Wien-bridge RC filter. When driven at a fixed frequency, the filter exhibits a temperature-dependent...
journal article 2018
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Rout, S. (author), Serdijn, W.A. (author)
Cardiac signal acquisition with high linearity and accuracy of the high-pass cut-off frequency imposes a challenge on the implementation of the analog preprocessing and the analog-to-digital converter. This paper describes a state-space-based methodology for designing high-pass sigma-delta (HP Sigma \Delta topologies with high linearity,...
journal article 2018
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Luan, Hualong (author), Ding, P (author), Wang, Zhengbing (author), Yang, S.L. (author), Lu, Jin You (author)
Morphodynamics of world's river deltas are increasingly affected by human activities, which are of great ecological, economic and social implications. However, impacts of human interventions in deltaic regions are insufficiently
understood, especially superimposed upon diminishing sediment supplies. This study uses the heavily interfered...
journal article 2018
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Jiang, H. (author), Ligouras, C. (author), Nihtianov, S. (author), Makinwa, K.A.A. (author)
When chopping is applied to a continuous-time sigmadelta modulator (CTΣΔM), quantization noise fold-back often occurs, leading to increased in-band noise. This can be prevented by employing a return-to-zero (RZ) digital-to-analog converter (RZ DAC) in the modulator's feedback path and arranging the chopping transitions to coincide with its RZ...
journal article 2018
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Cai, Z. (author), van Veldhoven, Robert (author), Suy, Hilco (author), de Graaf, G. (author), Makinwa, K.A.A. (author), Pertijs, M.A.P. (author)
This paper presents a readout circuit for a carbon dioxide (COࠢ) sensor that measures the CO₂-dependent thermal time constant of a hot-wire transducer. The readout circuit periodically heats up the transducer and uses a phase-domain Δ Σ modulator to digitize the phase shift of the resulting...
journal article 2018
Searched for: subject:"delta"
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