202 research outputs found
Challenges collecting pro-WEAI data in climate-affected Nandi County, Kenya
No full textThe author narrates challenges encountered when leading a team of enumerators to collect data for the pro-WEIA index in Nandi county, Keny
The Trials in the Killing of the Nandi Orkoiyot Koitalel Arap Samoi
No full textThe Nandi tribe resisted European colonisation in Western Kenya until the 1905 when the last British military campaign against them took place. At the beginning of the expedition, the spiritual and religious Nandi leader, orkoiyot Koitalel arap Samoi, was killed by Captain Richard Meinertzhagen. This work describes carefully the three trials which occurred after the accident. On the basis of court proceedings and Meinertzhagen’s diaries, the paper tries to ascertain the most probable course of events and who killed the orkoiyot. Furthermore, the author aims to establish whether Meinertzhagen was acting on his own or received an informal order from the commanders of the campaign. Finally, the article presents the political and military organisation of Nandi, their pre-colonial history and the political role of the orkoiyot in the tribe
SCIENTOMETRIC DIMENSIONS OF RESEARCH PRODUCTIVITY OF THE BOTANY DEPARTMENT, DURING 1960-2000.
No full textBibliometric analysis for 160 theses and 739 thesis articles collected from the Botany Department at The University of Burdwan in eight subdivisions of Botany during 1960-2000 has been carried out to determine year wise productivity, authorship pattern and collaboration. The study has identified that the highest number of thesis submission was 40 during 1981-1985 and the highest number of article submission was 189 during 1976-1980. The highest 22 number of theses were guided by Balen Nandi. Authorship trend is towards multiauthored papers. The Degree of Collaboration is 0.70. The most prolific author was M.A Choudhuri who topped the list with 54 papers during the period 1960-2000 followed by A Mukherjee with 48 publications, P.S Basu with 31 publications, K Gupta with 30 publications and B Nandi, with 27 publications. Among the top ranking journals publishing the papers are from India with 373 (50.47 %) publications followed by Germany with 61(8.29 %) publications, China with 53(7.17 %) publications and Netherlands with 45(6.09 %) publications
Dynamic amplifiers for analog-to-digital converters
No full textAdvances in CMOS technologies have brought benefits to both digital and analog integrated circuits. However, lower output impedance and reduced supply voltage have also caused newer challenges, especially for the design of operational amplifiers (op-amps) to implement gain. In this dissertation, dynamic/latch-based/regenerative amplifiers are explored where interrupted regeneration is used to implement the gain function.
First, a 6-b current-domain interpolating pipelined flash analog-to-digital converter (ADC) is presented, where a novel current-shape-amplifier (CSA) based on a simple dynamic latch stage with interrupted regeneration is used to achieve 16 X interpolation factor using four interpolating stages. Thanks to this larger interpolation factor, ADC input capacitance is greatly reduced, which significantly eases the design of ADC driver circuits. The reduction in ADC throughput that accompanies classical interpolation methods is overcome by pipelining the proposed CSA-based interpolating stages. Fabricated in a 65 nm CMOS process, the prototype ADC consumes 43.8 mW at 1/1.25 V supply and achieves 26.8 dB signal-to-noise and distortion ratio (SNDR) and 35.2 dB spurious-free dynamic range (SFDR) at 4 GS/s with a 2 GHz input.
Second, a study is conducted and a fully digital technique is proposed to calibrate the offset of interpolating flash ADCs. Compared to the state-of-the-art, this technique requires fewer comparators and needs fewer sets of input differential pairs. Offset cancellation is achieved by switching references (only during calibration) without extra loading at the input or the clock generator circuitry. The efficacy of this technique is demonstrated by simulating a 4 bit interpolating flash ADC which shows an effective number of bits (ENOB) improvement of 1.5 bits.
Third, the non-idealities of the ADC are described and calibration techniques are proposed to improve the performance.Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2022-08-01The student, Timir Nandi, accepted the attached license on 2020-05-14 at 15:51.The student, Timir Nandi, submitted this Dissertation for approval on 2020-05-14 at 16:08.This Dissertation was approved for publication on 2020-05-18 at 14:04.DSpace SAF Submission Ingestion Package generated from Vireo submission #15398 on 2020-10-02 at 15:30:38Made available in DSpace on 2020-10-07T22:07:09Z (GMT). No. of bitstreams: 2
NANDI-DISSERTATION-2020.pdf: 6792002 bytes, checksum: 232e618735ee89d4bf1e506c19b5de53 (MD5)
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Previous issue date: 2020-05-18Embargo set by: Seth Robbins for item 116183
Lift date: 2022-10-07T22:07:19Z
Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD systemEmbargo set by: Seth Robbins for item 116183
Lift date: 2022-10-07T22:44:53Z
Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD systemAuthor requested U of Illinois access only (OA after 2yrs) in Vireo ETD systemU of I Onl
Pricing the CBOE VIX Futures with the Heston-Nandi GARCH Model
No full textWe propose a closed-form pricing formula for the Chicago Board Options Exchange Volatility Index (CBOE VIX) futures based on the classic discrete-time Heston-Nandi GARCH model. The parameters are estimated using several sets of data, including the S&P 500 returns, the CBOE VIX, VIX futures prices and combinations of these data sources. Based on the resulting empirical pricing performances, we recommend the use of both VIX and VIX futures prices for a joint estimation of model parameters. Such estimation method can effectively capture the variations of the market VIX and the VIX futures prices simultaneously for both in-sample and out-of-sample analysis. (c) 2016 Wiley Periodicals, Inc. Jrl Fut Mark 37:641-659, 2017National Natural Science Foundation of China [71301027, 71201001, 71671004]; Ministry of Education of China, Humanities and Social Sciences Youth Fund [13YJC790146]; Fundamental Research Fund for the Central Universities in UIBE [14YQ05]SSCIARTICLE7641-6593
z This author's research supported by a Lloyd's of London Tercentenary Foundation
No full textAbstract | The cipher systems based on Cellular Automata proposed by Nandi et al. [3] are a ne and are insecure
Uniaxial Pressure Control of Competing Orders in a High Temperature Superconductor
No full textThis file contains the raw data use in the publication 'Uniaxial Pressure Control of Competing Orders in a High Temperature Superconductor' by H.-H. Kim, S. M. Souliou, M.E. Barber, E. Lefrancois, M. Minola, M. Tortora, R. Heid, N. Nandi, R. A. Borzi, G. Garbarino, A. Bosak, J. Porras, T. Loew, M. König, P.M. Moll, A. P. Mackenzie, B. Keimer, C. W. Hicks and M. Le Tacon.
Source code for the first principle calculations is also provided, alongside with the instruction to use them.
This code was developed at the Karlsruhe Institute of Technology by Rolf Heid.
Any use of the software beyond the context of this publication requires permission of the author
Mixing and violation in and meson systems
No full textThis paper reports several new and recent results from the LHCb Collaboration about mixing and CP violation in B and D meson systems, as presented by the author at Les Rencontres de Physique de la Vall´ee d’Aoste 2017 in Ital
Big data analytics effect on competitive performance : mediating role of business model innovation
No full textThis article is based on the authors thesis entitled 'The effect
of big data analytics capability on competitive performance:
The mediating role of business model innovation' towards
the degree of Masters in Business Administration at The
University of Pretoria’s Gordon Institute of Business Science,
South Africa on 7 November 2022, with supervisor Manoj
Dayal Chiba.DATA AVAILABILITY :
The data that support the findings of this study are available
from the corresponding author, M.D.C., upon reasonable
request.PURPOSE : Big Data Analytics Capabilities (BDAC) facilitate the generation of critical insights required for competitive performance. This study evaluates the relationship between Big Data Analytics Capabilities and competitive performance and argues the effect is mediated by Business Model Innovation (BMI). This is assessed through the theoretical lens of Dynamic Capabilities, where Big Data Analytics Capabilities enabled sensing identification opportunities that initiate the mobilisation of resources to transform firms’ business models, via BMI, to enhance performance. DESIGN/METHODOLOGY/APPROACH : A quantitative research approach using a survey was utilised. Data from 272 firms were collected. FINDINGS/RESULTS : The research model is evaluated by Partial Least Squares Structural Equation Modelling. The findings show that Big Data Analytics Capabilities have a direct and indirect influence on competitive performance, where BMI mediates the latter. The results enrich Dynamic Capabilities, Big Data Analytics Capabilities and BMI literature by demonstrating that Big Data Analytics Capabilities have a positive effect on BMI and subsequently competitive performance, to create value for firms and their stakeholders. PRACTICAL IMPLICATIONS : Practitioners need to invest in Big Data Analytics Capabilities to enhance the probability of success of their BMI endeavours. ORIGINALITY/VALUE : Firstly, organisations’ efforts in nurturing big data infrastructure, human resources, and data-driven cultures drive actions that enhance both operational and strategic execution, leading to enhanced performance. Secondly, the positive effect of Big Data Analytics Capabilities is carried through BMI to influence competitive performance positively, thus suggesting that the sensing enabled by Big Data Analytics Capabilities leads to transformational activities that drive performance.http://www.sajbm.org/hj2024Gordon Institute of Business Science (GIBS)Non
Future Bank
No full textThe National bank of Belgium is envisioned as an open, transparent, publicly engaged institution that draws the city into itself, hopefully becoming a catalyst for change.The attitude the project takes is to deeply understand and interrogate what exists before proposing changes– imbibing the studio dictum of ‘economy of means’. As an outcome, the new and old buildings merge into one another and become a congruent whole – and hopefully, a successful ‘piece of city’.Architecture, Urbanism and Building Sciences | Interiors Buildings Citie
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