1,721 research outputs found
The future of printcrime: Intellectual property, innovation law, and 3D printing
No full textIn a 2006 short story, ‘Printcrime’, Cory Doctorow imagined a dystopian future of contraband 3D printers. In the work, police try to shut down a bootleg operation, which engaged in the 3D printing of intellectual property. In his 2009 novel Makers, Cory Doctorow explored the rise of the maker community, and its do-it-yourself ethic. In an interview about the novel, the author reflected:\ud
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<i>"There has never been a better time to be a maker because finding the people who know how to fix the thing that's broken has never been easier. Finding someone else who has done 80% of what you want to do, and sharing the things you have done with other people, has never been easier. A maker is someone who is of and in the 21st century." </i>\ud
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Rather prophetically, he discussed the prospect of intellectual property conflicts around 3D printing (particularly around copyright infringement and trademark infringement), and future controversies over 3D printing guns. In his 2015 short story, ‘The Man Who Sold the Moon’, Cory Doctorow imagined 3D printing in space. This body of creative work has been an important inspiration for the Maker Movement – but it has also shown a critical engagement with the law, ethics, and public policy associated with 3D printing and additive manufacturing.\ud
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Inspired by such science fiction, there have since been a number of optimistic, utopian manifestos published on the topic of 3D printing and the rise of the Maker Movement. There has been high hopes that the emerging, disruptive technology will be part of a new industrial revolution. The founder and executive chairman of the World Economic Forum, Klaus Schwab, situates 3D printing within the framework of a fourth industrial revolution. He predicted: ‘As current size, cost and speed constraints are progressively overcome, 3D printing will become more pervasive to include integrated electronic components such as circuit boards and even human cells and organs.’ Schwab anticipated that there would be a ‘new generation of self-altering products capable of responding to environmental changes such as heat and humidity.’ Moreover, he expected that ‘this technology could be used in clothing or footwear, as well as in health-related products such as implants designed to adapt to the human body.’ Schwab placed 3D printing alongside autonomous vehicles, advanced robotics, and new material as physical manifestations of larger technological megatrends.\ud
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In this context, this collection provides a sober, critical evaluation of the legal, ethical, and public policy issues in respect of intellectual property, innovation law, and 3D printing. Building upon Mark Lemley’s chapter, ‘IP in a World Without Scarcity,’ it considers the legal opportunities and challenges of the Maker Revolution. It provides both theoretical and empirical insights in respect of 3D printing, intellectual property, innovation, and regulation
Supplementary Information_Illegal trade of marine species in India_ 2015-2021.pdf
No full textLewis, R., Deshpande, K., Mendis, A., Patankar, V., Mendiratta, U. (2022). Illegal trade of marine species in India: 2015-2021. Wildlife Conservation Society- India Report.
Supplementary Information (Report: Illegal trade of marine species in India: 2015-2021)</p
Supplementary Information_Illegal trade of red sand boa in India: 2016-2021
No full text Nikita, V.M., Shukla, S., Mendis, A., Sotie, S., Kuriakose, S., Karve., A, Kulkarni, N., Mendiratta, U. (2022). Illegal trade of red sand boa in India: 2016-2021. Wildlife Conservation Society-India Report. </p
A preliminary artificial intelligence model for predicting the risk from glass windows subject to airblast overpressure
No full textHarmonized technical standards under EU copyright: The Public.Resource.Org judgment
No full textThe IPKat has received and is pleased to host the following guest contribution by Sunimal Mendis (Tilburg University) and Olia Kanevskaia (Utrecht University) on the judgment of the Court of Justice of the European Union (CJEU) in C-588/21 P Public.Resource.Org, concerning copyright protection of technical standards and access to public documents
Harmonized technical standards under EU copyright: The Public.Resource.Org judgment
No full textThe IPKat has received and is pleased to host the following guest contribution by Sunimal Mendis (Tilburg University) and Olia Kanevskaia (Utrecht University) on the judgment of the Court of Justice of the European Union (CJEU) in C-588/21 P Public.Resource.Org, concerning copyright protection of technical standards and access to public documents
3D Printing and Beyond: Intellectual Property and Regulation. Mendis, D.; Lemley, M.; Rimmer, M. (eds.).
No full textMendis, D.; Lemley, M.; Rimmer, M. (eds.). (2018) 3D Printing and Beyond: Intellectual Property and Regulation. Cheltenham: Edward Elgar Publishing, 432 p
Cnemaspis retigalensis Mendis Wickramasinghe & Munindradasa 2007, sp. nov.
No full text<i>Cnemaspis retigalensis</i> sp. nov. <p> <b>Holotype</b>. NMSL 20061201, Adult male, 28.76 mm SVL, from Weweltenna, Retigala, Sri Lanka, (N 08º 06’ 40.3” E 080º 39’ 31.4”, elevation 710m), 30.10.2005, collected by L. J. Mendis Wickramasinghe and D. A. I. Munindradasa.</p> <p> <b>Paratypes</b>. NMSL 20061202, Adult female, 30.87 mm SVL; NMSL 20061203, Adult female, 26.56 mm; NMSL 20061204, Adult male 27.67 mm SVL. Date of Collection 27.08.2006, the same locality and collected by L. J. Mendis Wickramasinghe and Roshan Rodrigo.</p> <p> <b>Diagnosis.</b> A small-sized <i>Cnemaspis</i> (snout to vent length 26–31 mm in an adult males), which can be distinguished from all known congeners by the following combination of characters: postmentals separated by a small scale; nostrils are not in contact with first supralabial; six supra labials to angle of mid-orbit position and end of jaw at 7–8 supra labials; 30–32 interorbitals; throat scales smooth; dorsal tubercles 62–65; dorsal tubercles small, rounded, pentagonal or hexagonal; absence of groups of carinated large scales in dorsal body; presence of conical tubercles, larger than dorsal body scales on the lower part of flank; spine-like tubercles absent on flanks; scales on the thigh intermixed with the tricarinated form; gular scales smooth; midventrals 26–27; ventral smooth and imbricate; subcaudals slightly large; preanal pores absent; 3–4 femoral pores on each side; 11 subdigital lamellae and 3 basal lamellae in the 4 th finger; 11–12 subdigital lamellae and 6 basal lamellae in the 4 th toe.</p> <p> <b>Description of Holotype.</b> Adult male (figs. 5, 13B, 17B, 21B, 25B and 29B) snout to vent length 28.76 mm, head depressed and narrow (HD / HLJ 0.38), head elongated and large (HLJ / SVL 0.29), distinct from the neck. Snout long (SE / HW 0.76), longer than the eye width (EW / SE 0.43). Eye relatively large (EW / HLJ 0.20). Ear opening small (EL / HLJ 0.11), inter ear distance is greater than the width of the eye (EE / EW 2.87).</p> <p>Rostral is large with a groove penetrating 3/4 of the scale. There are three internasals, with the mid scale being large in size to the nostril, and the other two are larger. The supranasal and postnasal consist of one smooth circular scale each and are bigger than the nostril, but equal or smaller than internasal and larger than the mid one. The head is covered with elongated, round, pentagonal or hexagonal shaped tubercle scales from snout to posterior margin of interorbital area and with small granulated scales up to the neck. The size of tubercle scales becomes progressively smaller from the snout to interorbital area. However, a group of large scales (still smaller than that on the snout) is located on upper interorbital area, and a set of very small scales are located in the parietal area. There are 30 interorbital scales of which mid scales are shorter and smaller than that of outer. The supraciliaries are slightly larger than upper interorbital scales. The nostril is oval, and is not connected with the supralabials. The nostril and the first supralabial are separated by a postnasal. The loreal region is convex and is covered with 15 large, circular and elongated, smooth tubercle scales. There are seven supralabials at the base of the jaw, with six at the mid orbit point. The first supralabial is equal or small to the second and third. The rest becomes progressively small. The dorsal tubercles are smaller than the upper interorbitals and are rounded, pentagonal or hexagonal in shape, and all are of similar size. There are 62 dorsal tubercles at the mid region of the body. The spine-like tubercles are absent on flanks. The conical tubercles present on the lower part of flank are larger than dorsal body scales and the subconical scales present on the upper part of flank are slightly smaller than the above. The dorsal part of forelimb and hind limb is covered with a flushed and juxtaposed, comparatively large scales with a keel. The scales on the thigh are intermixed with the tricarinated form. The tail is covered with scales larger than the dorsal body and the ventrolateral margin possesses rounded tubercles larger than tail scales. The mental scale is large and sub-triangular. A pair of rounded and pentagonal or hexagonal postmentals (smaller than the mental) is present on either side. The first postmental pair is separated by a small scale, and is connected with the first infralabial. The second postmental pair is smaller, and is connected with the first and second infralabials. There are seven infralabials towards the jaw end, with six of them towards the mid orbit point. The infralabials become progressively smaller in size towards the anterior end. The ear holes are oval shaped, bigger than nostrils, but smaller than eyes. There are 24–26 scales between the eye and ear. The scales in the throat are smooth, rounded, pentagonal or hexagonal in shape, the anterior scales being larger than the posterior scales. The gular scales are smooth. The mid ventral area consists of 26 scales, which are smooth, imbricate and smaller than the postmentals. The scales in ventral portion of fore and hind limbs are smooth, with the scales in the hind limb being relatively larger than those of the forelimb. There are four femoral pores and no preanal pores present. The preanal is smaller than anal scales. There are 70 subcaudals. The mid subcaudals are slightly larger than the other scales in the tail or equal in size. Although the mid subcaudals are circular or overlapping diamond in shape, the lower border appears to be slightly elongated-diamond in shape. This feature becomes prominent towards the end of tail. The keels are absent in subcaudals. The digits are slender, elongated and clawed. The distal sub-digital formulae include 4>3>2>5>1 (fingers) and 4>3>5>2>1 (toes) (Fig.25.B.).</p> <p> <b>Colour in life.</b> The body colour in the dorsal side is light brown. There is a faded black transverse band on either upper interorbital area. A closed contour of black comprised of boundaries of internasal, loreal, upper interorbital and parietal areas and a ‘W’ shaped marking (with a light yellow patch in posterior ‘W’) on anterior neck is on the dorsal head. A black patch is present on the posterior neck. The supraciliaries are light yellow. The eye pupil is circular and black with the surrounding being luminous red. The lateral view of the head and neck consists of three black line segments (one from nasal to mid eye in loreal region, the other along lower parietal boundary – both dorsally seen as part of the closed contour and the third from back of eye to neck on temporal region) in a brownish yellow background with yellow spots in supralabial, lower jaw and lower neck areas. The ventral view of the throat is light grey with irregular yellow markings in ventral jaw. Three faded stripes are present on each lower and upper arm in a brownish yellow background. The black stripe formula of 2,3,3,4 and 3 is present on fingers in a brownish yellow background. The ventral view of lower and upper arm is light brown. The mid dorsal area of the body is light brown, with four faded ‘W’ marks between fore and hind limbs. The black spots in upper flank and yellow and back spots in lower flank are present in mid lateral view. The mid ventral view is light grey with yellow irregular markings on ventrolateral margin of mid body. Three faded stripe are present on each femur and tibia in a brownish yellow background. The black stripe formula of 2,3,4,5 and 4 is present on toes in a brownish yellow background. The ventral femur and tibia are light grey in colour with yellow scale boundaries. The original part of the tail is light grey, with 13 transverse marks of faded black, of which the mark at the base and the next are ‘W’ shaped, and next two are hourglass shaped, and the rest is straight. The ventral aspect of tail is grey.</p> <p> <b>Colour in alcohol.</b> All yellow in life is turned to white while the rest is conserved.</p> <p> <b>Etymology.</b> The species epithet <i>retigalensis</i> is derived from Latin for “Retigala” referring to the forest where the species nov. is discovered. The vernacular names assigned for the species nov. are <i>Retigala diva huna, Retigala pahal palli</i> and <i>Retigala day gecko</i> in native languages Sinhala, Tamil and in English respectively.</p> <p> <b>Remarks.</b> <i>C. retigalensis</i> sp. nov. is congener with <i>C. kandiana</i> and <i>C. kumarasinghei</i> sp. nov. from morphological characters. However, <i>C. retigalensis</i> can easily be distinguished from <i>C. kandiana</i> by the absence of preanal pores and having smooth gula scales and, from <i>C. kumarasinghei</i> by absence of preanal pores and presence of scales on the thigh intermixed with the tricarinated form, and also from morphometric analysis. Specimens with yellow vertebra line are found rarely. <i>C. retigalensis</i> is often found in hill tops, on the lower 2m of trees and rocks.</p>Published as part of <i>Mendis Wickramasinghe, L. J. & Munindradasa, D. A. I., 2007, Review of the genus Cnemaspis Strauch, 1887 (Sauria: Gekkonidae) in Sri Lanka with the description of five new species, pp. 1-63 in Zootaxa 1490 (1)</i> on pages 10-12, DOI: 10.11646/zootaxa.1490.1.1, <a href="http://zenodo.org/record/5087387">http://zenodo.org/record/5087387</a>
Damage detection in cable structures using vibration characteristics
No full textCable structures find many applications such as in power transmission, in anchors and especially in bridges. They serve as major load bearing elements in suspension bridges, which are capable of spanning long distances. All bridges, including suspension bridges, are designed to have long service lives. However, during this long life, they become vulnerable to damage due to changes in loadings, deterioration with age and random action such as impacts. The main cables are more vulnerable to corrosion and fatigue, compared to the other bridge components, and consequently reduces the serviceability and ultimate capacity of the bridge. Detecting and locating such damage at the earliest stage is challenging in the current structural health monitoring (SHM) systems of long span suspension bridges. Damage or deterioration of a structure alters its stiffness, mass and damping properties which in turn modify its vibration characteristics. This phenomenon can therefore be used to detect damage in a structure. The modal flexibility, which depends on the vibration characteristics of a structure, has been identified as a successful damage indicator in beam and plate elements, trusses and simple structures in reinforced concrete and steel. Successful application of the modal flexibility phenomenon to detect and locate the damage in suspension bridge main cables has received limited attention in recent research work. This paper, therefore examines the potential of the modal flexibility based Damage Index (DI) for detecting and locating damage in the main cable of a suspension bridge under four different damage scenarios. Towards this end, a numerical model of a suspension bridge cable was developed to extract the modal parameters at both damaged and undamaged states. Damage scenarios considered in this study with varied location and severity were simulated by changing stiffness at particular locations of the cable model. Results confirm that the DI has the potential to successfully detect and locate damage in suspension bridge main cables. This simple method can therefore enable bridge engineers and managers to detect and locate damage in suspension bridges at an early stage, minimize expensive retrofitting and prevent bridge collapse
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