Search results for "Counterfeit"

Viltotas preces – patērētāju izvēle un institūciju darbība pret to pieejamību tirgū

2021

Maģistra darba tēma ir “Viltotas preces – patērētāju izvēle un institūciju darbība pret to pieejamību tirgū”. Pētījuma mērķis ir novērtēt patērētāju izvēles ietekmējošos faktorus, apzināti izvēloties iegādāties viltotas preces, kā arī izvērtēt institucionālos aspektus cīņā ar viltojumu pieejamību Eiropas Savienības tirgū. Darbs strukturēts trīs nodaļās, aplūkojot patērētāju lēmumu pieņemšanas aspektus, viltojumu tirgus izplatības ekonomisko ietekmi, izpēti noslēdzot ar Latvijas patērētāju anketēšanas rezultātu apkopojumu un analīzi. Veicot analīzi secināts, ka Latvijas patērētāju galvenie iemesli, lai iegādātos viltotās preces ir to zemās cenas un informācijas trūkums par viltoto preču nega…

Book Review: Counterfeit Politics, Secret Plots and Conspiracy Narratives in the Americas

2014

Spectral imaging system for money counterfeit detection

2019

A prototype with three different wavelength lasers (448nm, 532nm and 659nm) for money counterfeit illumination, analyzation and detection using RGB crosstalk correction and comparing spectral image ration for different banknote elements will be presented.

Counterfeit filtering facepiece respirators are posing an additional risk to health care workers during COVID-19 pandemic.

2020

Counteracting counterfeiting? False money as a multidimensional justice issue in 16th and 17th century monetary analysis

2007

False money appeared as the general common issue in monetary debates that occured in European countries in the 16th and 17th centuries. It first refered to sovereignty, in a time of state-building, as well as to a serious economic problem. Beyond sovereignty and economy, justice and, then, the public faith, were endangered by those who devoted themselves to produce false coins. The thesis of this communication is that one cannot understand clearly the general topic of false money by reading texts of the time with today's general definition of false money. We propose, then, to identify the multiple dimensions of false money : counterfeiting (by individuals), degradations of coins (by individ…

Unexpected identification and characterization of a cathinone precursor in the new psychoactive substance market: 3',4'-methylenedioxy-2,2-dibromobut…

2019

Abstract 3′,4′-methylenedioxy-2,2-dibromobutyrophenone has been identified and fully characterized in a sample obtained from an anonymous consumer acquired as ketamine through the Internet market. The substance has been deeply characterized by using standard and high performance analytical techniques such as: attenuated total reflectance-infrared spectroscopy, gas chromatography–mass spectrometry, high-resolution mass spectrometry, elemental analysis, and nuclear magnetic resonance, including 1H, 13C, distortionless enhancement by polarization transfer, two dimensional homonuclear 1H-1H correlation spectroscopy, and 1H-13C heteronuclear single-quantum correlation spectra. 3′,4′-methylenedio…

Blockchain applications in management: A bibliometric analysis and literature review

2021

Blockchain has gained substantial recognition for its ability to induce transformation and innovation in existing business models and frameworks. Consequently, the application of this technology to the management domain and its processes has attracted increasing interest from academia and industry. Although research addressing the use of blockchain in management has gained momentum, this field presents a discontinuous overview of the current scope and boundary of the knowledge thereon. This study addresses this lacuna using bibliometric analyses to synthesize the prior literature. Data from Scopus 586 articles, entailing contributions from 72 countries, 273 journals, 1016 organizations, and…

"Towards a "fingerprint" of paper network; separating forgeries from genuine by the properties of fibre structure"

2014

A novel method is introduced for distinguishing counterfeit banknotes from genuine samples. The method is based on analyzing differences in the networks of paper fibers. The main tool is a curvelet-based algorithm for measuring the distribution of overall fiber orientation and quantifying its anisotropy. The use of a couple or more appropriate parameters makes it possible to distinguish forgeries from genuine samples as concentrated point clouds in a two- or three-dimensional parameter space. Furthermore, the techniques of making watermarks is investigated by comparing genuine and counterfeit €50 banknotes. In addition, the so-called wire markings are shown to differ significantly from each…

Towards a "fingerprint" of paper network; separating forgeries from genuine by the properties of fibre structure

2014

A novel method is introduced for distinguishing counterfeit banknotes from genuine samples. The method is based on analyzing differences in the networks of paper fibers. The main tool is a curvelet-based algorithm for measuring the distribution of overall fiber orientation and quantifying its anisotropy. The use of a couple or more appropriate parameters makes it possible to distinguish forgeries from genuine samples as concentrated point clouds in a two- or three-dimensional parameter space. Furthermore, the techniques of making watermarks is investigated by comparing genuine and counterfeit e50 banknotes. In addition, the so-called wire markings are shown to differ significantly from each…

Using the fibre structure of paper to determine authenticity of the documents: analysis of transmitted light images of stamps and banknotes.

2014

A novel method is presented for distinguishing postal stamp forgeries and counterfeit banknotes from genuine samples. The method is based on analyzing differences in paper fibre networks. The main tool is a curvelet-based algorithm for measuring overall fibre orientation distribution and quantifying anisotropy. Using a couple of more appropriate parameters makes it possible to distinguish forgeries from genuine originals as concentrated point clouds in two- or three-dimensional parameter space.