Relevant bibliographies by topics / Coppersmiths / Journal articles
To see the other types of publications on this topic, follow the link: Coppersmiths.

Journal articles on the topic 'Coppersmiths'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 August 2024

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Coppersmiths.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Tender, Leonard M., and Sarah M. Glaven. "Microbial Coppersmiths." Joule 4, no. 10 (October 2020): 2072–74. http://dx.doi.org/10.1016/j.joule.2020.09.016.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Soeiro, Teresa. "Ofícios e Pequena Indústria em Penafiel Caldeireiros." Portugalia: Revista de Arqueologia do Departamento de Ciências e Técnicas do Património da Faculdade de Letras da Universidade do Porto 43 (2022): 179–222. http://dx.doi.org/10.21747/09714290/port43a8.

Full text
Abstract:
Following the overview of the coppersmith craft in the country we now focus on Penafiel where, since the 1840s, it gained unprecedented visibility due to the setting up of a professional coppersmith, Manuel Cunha, in the city. We trace the “Coppersmiths Cunha” family path investigating how they settled in, the strategies adopted to ensure economic viability, and the transmission of know-how from generation to generation. Later, with the Penafiel region needs met, the newer generations set out to conquer new markets. In this expansion process they established coppersmith shops all over Entre-Douro-e-Minho. These were in great demand when the family, at the turn of the 20th century, added to their traditional activity the preparing and installation of complex alembics, and the making and repairing of sprayers for agricultural use that became indispensable since the blight emergence
APA, Harvard, Vancouver, ISO, and other styles
3

Preda, Mihaela, Iuliana Vijulie, Gabriela Manea, and Alina Mareci. "The Customary Identity of the Coppersmiths Clan in Oltenia: Between Tradition and Modernity." Eastern European Countryside 21, no. 1 (December 1, 2015): 63–80. http://dx.doi.org/10.1515/eec-2015-0004.

Full text
Abstract:
Abstract The coppersmiths’ uniqueness as a Roma clan is given by their traditional crafting legacy, as they themselves acknowledge. They are one of the more conservative Roma clans. Encouraged by their previous nomadic lifestyle, it hasn’t allowed them to blend with other clans or populations. Mixed marriages are forbidden and marriages with members of other Roma clans are rare. The aim of this study is to identify the elements that define the ethnic identity of the coppersmiths clan, to analyse the features that make out the coppersmiths’ customary identity, and to measure the self-segregation tendencies within the coppersmiths ethnic group. The main research methods were: bibliographic documentation, direct observation, field inquiries (structured interviews), and digital mapping. The research concluded the following: the coppersmiths are one of the extreme conservative clans, which have maintained their customary identity. The tendency of self-segregation is a direct consequence of their resistance towards anything modern, and the members of the coppersmiths clan believe that acting like the majority of society will only lead to the loss of their own identity. The consequences are mostly negative, e.g. poor school enrolment, marrying at an early age, an absence from modern socio-economic activities, etc.
APA, Harvard, Vancouver, ISO, and other styles
4

Malakoff, David. "Great Lakes people among first coppersmiths." Science 371, no. 6536 (March 25, 2021): 1299. http://dx.doi.org/10.1126/science.371.6536.1299.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Dagli, Canan Eren, Abdullah Cetin Tanrikulu, Nurhan Koksal, Abdurrahman Abakay, Mehmet Emin Gelen, Gulen Demirpolat, Murvet Yuksel, Nurhan Atilla, and Fatma Inanc Tolun. "Interstitial Lung Disease in Coppersmiths in High Serum Copper Levels." Biological Trace Element Research 137, no. 1 (November 17, 2009): 63–68. http://dx.doi.org/10.1007/s12011-009-8566-8.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Nazerian, Hamed, Bahareh Hedayat, Aref Shirazi, and Adel Shirazy. "Prediction of Copper Mineralization by the Artificial Neural Network (GRNN and BPNN) in Mesgaran Exploration Area, Eastern Iran." International Journal of Science and Engineering Applications 11, no. 05 (May 2022): 61–65. http://dx.doi.org/10.7753/ijsea1105.1002.

Full text
Abstract:
Mesgaran exploration area is located in South Khorasan province, 26 km south of Sarbisheh city. The mineral potential of coppersmiths is copper mineralization. According to 75 surface samples taken, the analysis results are examined using the method of radial artificial neural network and error propagation. Also, after training to see the networks, the results can be used for other places. The strength of this study is that it does not require costly analyses to predict copper levels in other parts of the range, and simple analyses can estimate copper levels with an acceptable probability percentage and use the results to advance operations. In this area, the neural method was identified with higher accuracy.
APA, Harvard, Vancouver, ISO, and other styles
7

Bahig, Hatem M., Dieaa I. Nassr, Ashraf Bhery, and Abderrahmane Nitaj. "A Unified Method for Private Exponent Attacks on RSA Using Lattices." International Journal of Foundations of Computer Science 31, no. 02 (February 2020): 207–31. http://dx.doi.org/10.1142/s0129054120500045.

Full text
Abstract:
Let [Formula: see text] be an RSA public key with private exponent [Formula: see text] where [Formula: see text] and [Formula: see text] are large primes of the same bit size. At Eurocrypt 96, Coppersmith presented a polynomial-time algorithm for finding small roots of univariate modular equations based on lattice reduction and then succussed to factorize the RSA modulus. Since then, a series of attacks on the key equation [Formula: see text] of RSA have been presented. In this paper, we show that many of such attacks can be unified in a single attack using a new notion called Coppersmith’s interval. We determine a Coppersmith’s interval for a given RSA public key [Formula: see text] The interval is valid for any variant of RSA, such as Multi-Prime RSA, that uses the key equation. Then we show that RSA is insecure if [Formula: see text] provided that we have approximation [Formula: see text] of [Formula: see text] with [Formula: see text] [Formula: see text] The attack is an extension of Coppersmith’s result.
APA, Harvard, Vancouver, ISO, and other styles
8

Derluguian, Georgi. "The Bronze Age as the First World-System: Theses for aResearch Agenda." Analytical Bulletin 15 (December 27, 2022): 22–30. http://dx.doi.org/10.56673/18294502-22.15-22.

Full text
Abstract:
Bronze Age is traditionally viewed as historical period in the third and second millennia BCE. My key contention is that it is more meaningfully considered in geographic terms, as interconnected space of trade and cultural exchanges encompassing Afro-Eurasia but not Tropical Africa, let alone Australia and the Americas. The Bronze-age world-system extended from Scandinavia and British Isles to Egypt and Mesopotamia, from the Indus valley civilization and ancient Arabia to the Urals and western Siberia, possibly, also China and South-East Asia. Geologically, copper and tin as two metal components of bronze are randomly distributed on the planet which necessitated long-distance trade. In turn, the world trade in metals created whole cascades of logistical needs and opportunities. The consequences included the emergence of social complexity: chiefly powers, diplomacy, merchants, specialist coppersmiths and weapons-makers, professional warriors. New means of transportation emerged such as sailed ship and domesticated pack animals (donkey, camel, horse). The exchange in secondary products (wine, cloth, elaborate pottery) led to a revolution in conspicuous consumption. These theses are intended to generate a discussion about the earliest world-system, its morphology and flows. This may also extend to the comparative analysis of later world-systems known to us Antiquity, the Medieval ‘Silk Roads’, and modern capitalism.
APA, Harvard, Vancouver, ISO, and other styles
9

Saunders, Fenella. "First Person: Susan Coppersmith." American Scientist 106, no. 3 (2018): 135. http://dx.doi.org/10.1511/2018.106.3.135.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Zhang, Lu, Baodong Qin, Wen Gao, and Yiyuan Luo. "An Improved Coppersmith Algorithm Based on Block Preprocessing." Mathematics 12, no. 2 (January 5, 2024): 173. http://dx.doi.org/10.3390/math12020173.

Full text
Abstract:
Since Coppersmith proposed the use of the LLL algorithm to solve univariate modular polynomial equations at EUROCRYPT’96, it has sparked a fervent research interest in lattice analysis among cryptographers. Despite its polynomial-time nature, the LLL algorithm exhibits a high-order polynomial upper bound in terms of theoretical complexity, particularly with longer computation times when applied to high-dimensional lattices. In addressing this issue, we propose an improved algorithm based on block preprocessing, building on the original Coppersmith algorithm and thus providing proof of correctness for this algorithm. This approach effectively reduces the solution time of the algorithm, offering a maximum improvement of 8.1% compared to the original Coppersmith algorithm. Additionally, we demonstrate the compatibility of our algorithm with the rounding algorithm proposed at PKC 2014. The combined utilization of these approaches further enhances the efficiency of our algorithm. The experimental results show that the combined algorithm achieves a maximum improvement of 22.4% in solution time compared to the original Coppersmith algorithm. It also outperforms the standalone rounding algorithm with a maximum improvement of 12.1%. When compared to the improved Coppersmith algorithm based on row common factor extraction, our proposed algorithm demonstrates comparable or even superior performance in certain dimensions. The block preprocessing algorithm in our approach enables independent execution without data exchange, making it suitable for leveraging multi-processing advantages in scenarios involving higher degrees of modular polynomial equations. This offers a new perspective for achieving the parallel computation of the Coppersmith algorithm, facilitating parallel execution and providing valuable insights.
APA, Harvard, Vancouver, ISO, and other styles
11

Downey, P. "Profile of Susan N. Coppersmith." Proceedings of the National Academy of Sciences 110, no. 3 (January 14, 2013): 802–3. http://dx.doi.org/10.1073/pnas.1222451110.

Full text
APA, Harvard, Vancouver, ISO, and other styles
12

Pan, Victor. "Author’s Comments on Don Coppersmith’s Review." SIAM Review 28, no. 3 (September 1986): 443–44. http://dx.doi.org/10.1137/1028149.

Full text
APA, Harvard, Vancouver, ISO, and other styles
13

Coron, Jean-Sébastien, Alexey Kirichenko, and Mehdi Tibouchi. "A Note on the Bivariate Coppersmith Theorem." Journal of Cryptology 26, no. 2 (March 21, 2012): 246–50. http://dx.doi.org/10.1007/s00145-012-9121-x.

Full text
APA, Harvard, Vancouver, ISO, and other styles
14

Гаджиев, М. С., and М. А. Гасанов. "SARCOPHAGOUS TOMBSTONE WITH KUFIC INSCRIPTION OF THE DERBENT MUSLIM NECROPOLIS OF THE 11th — 12th cc." Proceedings in Archaeology and History of Ancient and Medieval Black Sea Region, no. 13 (February 15, 2022): 942–53. http://dx.doi.org/10.53737/2713-2021.2021.28.23.035.

Full text
Abstract:
В 2020 г. в ходе охранно-спасательных археологических наблюдений в Дербенте был выявлен мусульманский могильник, представляющий обособленный участок некогда обширного средневекового городского некрополя Дербента, располагавшегося за пределами архитектурного выделенного шахристана. Данный участок насчитывает свыше 80 саркофагообразных надмогильных памятников, которые условно именуются по их форме «саркофаги» и датируются последней третью XI—XII вв. Среди них представлен единственный саркофаг, на южной продольной боковой стороне которого имеется врезная надпись — эпитафия, выполненная на арабском языке почерком куфи. Текст ее гласит: «Это могила Мухаммада, лудильщика. Да будет над ним милость Аллаха!».Памятник представляет редкий образец саркофагообразных надмогильных памятников с надписью. Согласно эпитафии, погребенный являлся лудильщиком и эта информация расширяет круг ремесленных специальностей, существовавших в Дербенте XI—XII вв., и служит указанием на специализацию ремесленного труда в обработке цветных металлов, учитывая существование в это время в Дербенте изготовителей медных предметов, медников. Вместе с тем, в тексте эпитафии, очевидно, следует видеть не только указание на профессию, но и прозвище погребенного — Мухаммад ал-Лахим «Мухаммад Лудильщик». Не исключено, что этот саркофаг был установлен над погребением одного из уважаемых представителей суфийской общины Дербента последней трети XI—XII вв. In 2020 during secure and rescue archaeological observations in Derbent, the Muslim burial ground, representing once vast separate section of medieval urban necropolis of Derbent outside the architecturally allocated shahristan, was identified. This site has more than 80 sarcophagus-shaped tombstones, which are conventionally referred to by their shape as “sarcophaguses” and dated to the last third of the 11th — 12th centuries. Among them there is a single sarcophagus, on the southern longitudinal side of which there is an inset inscription — epitaph, written in Arabic in Kufi handwriting. Its text reads: “This is the grave of Muhammad, the tinsmith. May Allah have mercy on him!”.The monument is a rare example of sarcophagus-shaped tombstones with inscription. According to the epitaph, the buried man was a tinker and this information expands the range of craft specialties that existed in Derbent in the 11th — 12th centuries, and indicates the specialization of handicraft work in the processing of non-ferrous metals, taking into account the existence of manufacturers of copper objects, coppersmiths in Derbent. At the same time, the text of the epitaph shows not only the profession, but also the nickname of the buried man — Muhammad Lahim “Muhammad Tinsmith”. It’s possible that this sarcophagus was installed over the burial of one of the respected representative of the Sufi community in Derbent of the last third of the 11th — 12th centuries.
APA, Harvard, Vancouver, ISO, and other styles
15

Draziotis, Konstantinos A. "(EC)DSA lattice attacks based on Coppersmith's method." Information Processing Letters 116, no. 8 (August 2016): 541–45. http://dx.doi.org/10.1016/j.ipl.2016.04.001.

Full text
APA, Harvard, Vancouver, ISO, and other styles
16

Ryzhov, A. S. "Implementing Coppersmith algorithm for binary matrix sequences on clusters." Prikladnaya diskretnaya matematika, no. 21 (September 1, 2013): 112–22. http://dx.doi.org/10.17223/20710410/21/12.

Full text
APA, Harvard, Vancouver, ISO, and other styles
17

Sarker, Noor Jahan, M. Firoj Jaman, Shariar Mustafa, and Md Saidur Rahman. "Breeding biology of coppersmith barbet, Megalaima haemacephala (Müller, 1776)." University Journal of Zoology, Rajshahi University 31 (June 21, 2013): 31–34. http://dx.doi.org/10.3329/ujzru.v31i0.15397.

Full text
Abstract:
Breeding biology of the Coppersmith barbet, Megalaima haemacephala (Müller, 1776) was carried out between February, 2006 and January, 2007 at Sharawardy Uddyan, Ramna Park, Curzon Hall and National Botanical Garden. The breeding season started from December and ended in June. In total 20 nests were observed, of which 10 nests were studied in details in four study areas. The coppersmith barbet mostly preferred to make holes on the branches of koroi (Albizzia procera) for nesting. Egg laying started on 15th February in the study areas. Average height of nests from the ground was 9.7m and average depth and diameter of the holes was 29.20cm and 4.46cm respectively. New holes were constructed yearly or the old one was reused. Both the sexes took part in incubation of eggs, brooding and feeding to the nestlings. A total of 30 eggs were laid in 10 nests. Clutch size varied from 2 – 4 eggs (average: 3 eggs). Among them, 20 (66.67%) eggs were hatched and the rest 10 (33.33%) were unhatched and lost. Average incubation period was 14 days. The male and the female incubated the eggs for an average of 27.44 minutes/ hours and 32.56 minutes/ hours, respectively. Average number of nestlings (brood size) per nest was 2. Out of 20 nestlings, 16 left their nests successively. The breeding success was 53.33% in relation to the number of eggs laid and 80% in relation to nestlings hatched. The average weight of eggs and nestlings was 3.59g and 9.33g, respectively. The main causes of loss of the eggs and nestlings were human interference, predation and ectoparasitic infections. Insects and fruits were fed to the nestlings by their parents.DOI: http://dx.doi.org/10.3329/ujzru.v31i0.15397Univ. j. zool. Rajshahi Univ. Vol. 31, 2012 pp. 31-34
APA, Harvard, Vancouver, ISO, and other styles
18

Aono, Yoshinori, Manindra Agrawal, Takakazu Satoh, and Osamu Watanabe. "On the optimality of lattices for the coppersmith technique." Applicable Algebra in Engineering, Communication and Computing 29, no. 2 (August 9, 2017): 169–95. http://dx.doi.org/10.1007/s00200-017-0336-9.

Full text
APA, Harvard, Vancouver, ISO, and other styles
19

Cohn, Henry, and Nadia Heninger. "Ideal forms of Coppersmith's theorem and Guruswami-Sudan list decoding." Advances in Mathematics of Communications 9, no. 3 (2015): 311–39. http://dx.doi.org/10.3934/amc.2015.9.311.

Full text
APA, Harvard, Vancouver, ISO, and other styles
20

Mefenza, Thierry, and Damien Vergnaud. "Inferring sequences produced by elliptic curve generators using Coppersmith's methods." Theoretical Computer Science 830-831 (August 2020): 20–42. http://dx.doi.org/10.1016/j.tcs.2020.04.025.

Full text
APA, Harvard, Vancouver, ISO, and other styles
21

Davie, A. M., and A. J. Stothers. "Improved bound for complexity of matrix multiplication." Proceedings of the Royal Society of Edinburgh: Section A Mathematics 143, no. 2 (March 18, 2013): 351–69. http://dx.doi.org/10.1017/s0308210511001648.

Full text
Abstract:
We give a new bound ω < 2.37369 for the exponent of complexity of matrix multiplication, giving a small improvement on the previous bound obtained by Coppersmith and Winograd. The proof involves an extension of the method used by these authors. We have attempted to make the exposition self-contained.
APA, Harvard, Vancouver, ISO, and other styles
22

Wadurn, Jørgen. "Peeter Stas: an Antwerp coppersmith and his marks (1587-1610)." Studies in Conservation 43, sup1 (January 1, 1998): 140–44. http://dx.doi.org/10.1179/sic.1998.43.supplement-1.140.

Full text
APA, Harvard, Vancouver, ISO, and other styles
23

Nair, Chandra, Balaji Prabhakar, and Mayank Sharma. "Proofs of the Parisi and Coppersmith-Sorkin random assignment conjectures." Random Structures and Algorithms 27, no. 4 (2005): 413–44. http://dx.doi.org/10.1002/rsa.20084.

Full text
APA, Harvard, Vancouver, ISO, and other styles
24

Miller, Stephen D., Bhargav Narayanan, and Ramarathnam Venkatesan. "Coppersmith's lattices and “focus groups”: An attack on small-exponent RSA." Journal of Number Theory 222 (May 2021): 376–92. http://dx.doi.org/10.1016/j.jnt.2021.01.002.

Full text
APA, Harvard, Vancouver, ISO, and other styles
25

Gayen, Debayan, Subhajit Roy, Sagar Adhurya, Aniruddha Singhamahapatra, Somapika Seal, and Avik Dutta. "“Leucism resulting in xanthochroism” – A report on colour aberration in Coppersmith Barbet Psilopogon haemacephalus from Asia." Ornis Hungarica 30, no. 1 (June 1, 2022): 69–79. http://dx.doi.org/10.2478/orhu-2022-0005.

Full text
Abstract:
Abstract Plumage colouration is important for birds as it helps them in camouflage, mate selection, social signalling and various other physiological and behavioural processes. The most common pigments responsible for colouration are melanins and carotenoids. In a few individuals, colouration is disrupted due to various causes. The most common colour aberrations found in birds are leucism, albinism, melanism, carotenism, schizochroism and dilution whereas xanthochroism is a lesser-known phenomenon. In this article, five records of colour aberrant Coppersmith Barbet Psilopogon haemocephalus are reported. The authors along with the help of citizen scientists observed four individuals with disruptions in plumage colouration from different areas of West Bengal and Assam, India and one from Rajsahi, Bangladesh. Due to the lack of melanins, the birds were mostly yellowish and whitish in colouration with or without some normally coloured feathers on the head and wings. The carotenoid deposition was unaffected in the case of the observed adults and juveniles. These records can be cited as xanthochroistic individuals resulting from leucism. This is the first record of such colour aberration for Coppersmith Barbet from the whole of its distribution range.
APA, Harvard, Vancouver, ISO, and other styles
26

Madi, Aminah, Fatihah Najihah Arazmi, Shukor Md. Nor, and Mohammad Saiful Mansor. "Distribution of Six Urban Bird Species in Urban Agglomeration of Central Region of Peninsular Malaysia Using Ebird Database." Pertanika Journal of Science and Technology 31, no. 2 (March 20, 2023): 1035–46. http://dx.doi.org/10.47836/pjst.31.2.20.

Full text
Abstract:
Developing countries are undergoing rapid urbanisation to fulfil the high demands of incremental population growth, construction, and development. Excessive development has negative impacts on biodiversity by altering or destroying habitats. However, each bird species may respond differently to habitat alteration. Therefore, this study was conducted to determine the distribution of urban bird species in metropolitan cities and nearby areas in Peninsular Malaysia. The main objective of this study was to determine the distribution patterns of six aesthetically valuable urban bird species (Black-naped Oriole [Oriolus chinensis], Yellow-vented Bulbul [Pycnonotus goiavier], White-throated Kingfisher [Halcyon smyrnensis], Pink-necked Green-Pigeon [Treron vernans], Coppersmith Barbet [Psilopogon haemacephalus] and Common Iora [Aegithina tiphia]) in Greater Kuala Lumpur (the Klang Valley region) using observations from a citizen science (eBird) database. We mapped species abundance throughout the focal area using ArcGIS and analysed the data using Minitab. Three urban bird species dominated, with the highest number of observations recorded: Yellow-vented Bulbul (46.59%), Pink-necked Green-Pigeon (19.25%), and Black-naped Oriole (13.00%). While, the Coppersmith Barbet had the lowest recorded observations (2.76%). Species abundance differed significantly across the study region (F=5.12,p<0.05), with the studied species’ occurrence increasing as green spaces increased. Such dynamic mapping is crucial for better understanding the mechanisms of the persistence of urban biodiversity. We suggest creating more green areas and planting roadside trees to provide green corridors within cities to help sustain urban biodiversity.
APA, Harvard, Vancouver, ISO, and other styles
27

Kaltofen, Erich. "Analysis of Coppersmith's Block Wiedemann Algorithm for the Parallel Solution of Sparse Linear Systems." Mathematics of Computation 64, no. 210 (April 1995): 777. http://dx.doi.org/10.2307/2153451.

Full text
APA, Harvard, Vancouver, ISO, and other styles
28

Kaltofen, Erich. "Analysis of Coppersmith’s block Wiedemann algorithm for the parallel solution of sparse linear systems." Mathematics of Computation 64, no. 210 (May 1, 1995): 777. http://dx.doi.org/10.1090/s0025-5718-1995-1270621-1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
29

Wang, Jeen-Hwa, and San-San Ou. "On scaling of earthquake faults." Bulletin of the Seismological Society of America 88, no. 3 (June 1, 1998): 758–66. http://dx.doi.org/10.1785/bssa0880030758.

Full text
Abstract:
Abstract Scaling relations among seismic moment, M0, average displacement, δ, rupture width, W, and rupture length, L, of earthquake faults are studied mainly using the data base of earthquake source parameters compiled by Wells and Coppersmith (1994). Results show that seismic moment scales with rupture length approximately as M0 ∼ L2; rupture width is independent of rupture length for large earthquakes; average displacement relates to rupture length approximately as δ ∼ L; and the average displacement is independent of rupture width. Consequently, the L-model proposed by Scholz (1982) is more appropriate than the W-model suggested by Romanowicz (1992) to describe the scaling of earthquake faults.
APA, Harvard, Vancouver, ISO, and other styles
30

Ryzhov, A. S. "Implementing main steps of Wiedemann — Coppersmith algorithm for binary systems of linear equations on clusters." Prikladnaya diskretnaya matematika, no. 22 (December 1, 2013): 82–95. http://dx.doi.org/10.17223/20710410/22/9.

Full text
APA, Harvard, Vancouver, ISO, and other styles
31

Kler, Tejdeep Kaur. "Unusual nesting site of Coppersmith Barbet Megalaima haemacephala (Müller) in residential area of Ludhiana city." Zoos' Print Journal 20, no. 9 (August 21, 2005): 1994. http://dx.doi.org/10.11609/jott.zpj.1122.1994.

Full text
APA, Harvard, Vancouver, ISO, and other styles
32

Zulkifli, Achmad. "SELF-DISCLOSURE DITINJAU DARI TIPE KEPRIBADIAN DAN SELF-ESTEEM PADA REMAJA PENGGUNA MEDIA SOSIAL." Journal of Psychological Science and Profession 2, no. 2 (August 3, 2018): 179. http://dx.doi.org/10.24198/jpsp.v2i2.21194.

Full text
Abstract:
Manusia dalam hidupnya selalu bergantung kepada manusia lain. Manusia selalu butuh berkomunikasi dengan manusia lain. Seiring dengan modernnya zaman, kini komunikasi manusia semakin kreatif dengan adanya media sosial online. Penelitian ini bertujuan untuk menjelaskan adanya pengaruh yang signifikan antara tipe kepribadian dan self-esteem terhadap self-disclosure pada remaja pengguna media sosial. Penelitian ini menggunakan pendekatan kuantitatif yang diukur menggunakan tiga skala yaitu Eysenck Personality Inventory (EPI), Self-esteem Coppersmith, dan Self-disclosure Scale. Responden penelitian adalah 205 remaja yang diambil dengan teknik purposive sampling. Hasil penelitian menunjukkan bahwa terdapat pengaruh Tipe kepribadian dan self-esteem terhadap Self-disclosure., Tipe kepribadian dan self-esteem mempengaruhi self-disclosure sebesar 56,3%. Tipe kepribadian memberikan sumbangan sebanyak 1,5% dan self-esteem sebanyak 54,7% terhadap self-disclosure.
APA, Harvard, Vancouver, ISO, and other styles
33

Wang, Shuodong. "A Study of the Use of Euler Totient Function in RSA Cryptosystem and the Future of RSA Cryptosystem." Journal of Physics: Conference Series 2386, no. 1 (December 1, 2022): 012030. http://dx.doi.org/10.1088/1742-6596/2386/1/012030.

Full text
Abstract:
Abstract At the end of the last century, an innovative two-key cryptosystem called RSA was created due to booming demand for secure remote communication. The core for this encryption system is a mathematical function called the Euler totient function (Euler φ function), introduced by Leonhard Euler. This article will first deduce four theorems related to Euler φ function, and then illustrate the correctness of the RSA cryptosystem using Euler’s φ function. The study then starts with well-known RSA attacks such as the Coppersmith attack, assesses some of RSA’s vulnerabilities, and measures the impact of quantum technologies on RSA. Finally, this study provides projections and recommendations for the future development of RSA based on all evaluation studies completed during the entire research program.
APA, Harvard, Vancouver, ISO, and other styles
34

Kameswari, Pratha Anuradha, and Lambadi Jyotsna. "An Attack Bound for Small Multiplicative Inverse of φ(N) mod e with a Composed Prime Sum p+q Using Sublattice Based Techniques." Cryptography 2, no. 4 (November 22, 2018): 36. http://dx.doi.org/10.3390/cryptography2040036.

Full text
Abstract:
In this paper, we gave an attack on RSA (Rivest–Shamir–Adleman) Cryptosystem when φ(N) has small multiplicative inverse modulo e and the prime sum p + q is of the form p + q = 2nk0 + k1, where n is a given positive integer and k0 and k1 are two suitably small unknown integers using sublattice reduction techniques and Coppersmith’s methods for finding small roots of modular polynomial equations. When we compare this method with an approach using lattice based techniques, this procedure slightly improves the bound and reduces the lattice dimension. Employing the previous tools, we provide a new attack bound for the deciphering exponent when the prime sum p + q = 2nk0 + k1 and performed an analysis with Boneh and Durfee’s deciphering exponent bound for appropriately small k0 and k1.
APA, Harvard, Vancouver, ISO, and other styles
35

Imran, Muhammad, and Gabor Ivanyos. "An exact quantum hidden subgroup algorithm and applications to solvable groups." Quantum Information and Computation 22, no. 9&10 (July 2022): 770–89. http://dx.doi.org/10.26421/qic22.9-10-4.

Full text
Abstract:
We present a polynomial time exact quantum algorithm for the hidden subgroup problem in $\Z_{m^k}^n$. The algorithm uses the quantum Fourier transform modulo $m$ and does not require factorization of $m$. For smooth $m$, i.e., when the prime factors of $m$ are of size $(\log m)^{O(1)}$, the quantum Fourier transform can be exactly computed using the method discovered independently by Cleve and Coppersmith, while for general $m$, the algorithm of Mosca and Zalka is available. Even for $m=3$ and $k=1$ our result appears to be new. We also present applications to compute the structure of abelian and solvable groups whose order has the same (but possibly unknown) prime factors as $m$. The applications for solvable groups also rely on an exact version of a technique proposed by Watrous for computing the uniform superposition of elements of subgroups.
APA, Harvard, Vancouver, ISO, and other styles
36

Edsall, Benjamin A. "Hermogenes the Smith and Narrative Characterisation inThe Acts of Paul: A Note on the Reception of 2 Timothy." New Testament Studies 64, no. 1 (December 8, 2017): 108–21. http://dx.doi.org/10.1017/s0028688517000248.

Full text
Abstract:
The figures of Demas and Hermogenes in theActs of Paulare puzzling for their ambiguous relation with figures by the same name in 2 Timothy (and, for Demas, in Philemon and Colossians). The purpose of the present article is to question what personal biographical details present in the Thecla narrative contribute to larger issues of literary dependence, focusing in particular on the notice that Hermogenes is a ‘coppersmith’. Although several scholars explain this passing reference in terms of a confused literary dependence on previous Pauline traditions, it is rarely approached as a meaningful narrative feature. This personal detail, however, should be read for its contribution to the Thecla narrative in light of the wider early Christian view of ‘smiths’, running from the New Testament texts into the third century and later. When these elements are taken into account, the smith-notice is highlighted as characterising Hermogenes (and, by extension, Demas) negatively.
APA, Harvard, Vancouver, ISO, and other styles
37

Dieulefait, Luis V., and Jorge Urroz. "Factorization and Malleability of RSA Moduli, and Counting Points on Elliptic Curves Modulo N." Mathematics 8, no. 12 (November 27, 2020): 2126. http://dx.doi.org/10.3390/math8122126.

Full text
Abstract:
In this paper we address two different problems related with the factorization of an RSA (Rivest–Shamir–Adleman cryptosystem) modulus N. First we show that factoring is equivalent, in deterministic polynomial time, to counting points on a pair of twisted Elliptic curves modulo N. The second problem is related with malleability. This notion was introduced in 2006 by Pailler and Villar, and deals with the question of whether or not the factorization of a given number N becomes substantially easier when knowing the factorization of another one N′ relatively prime to N. Despite the efforts done up to now, a complete answer to this question was unknown. Here we settle the problem affirmatively. To construct a particular N′ that helps the factorization of N, we use the number of points of a single elliptic curve modulo N. Coppersmith’s algorithm allows us to go from the factors of N′ to the factors of N in polynomial time.
APA, Harvard, Vancouver, ISO, and other styles
38

Seidenstricker, Sven, Christian Linder, and Michael Schmitz. "Diversification in Emergent Markets: Possibility for Transferring Technological Core Competencies." South Asian Journal of Business and Management Cases 3, no. 2 (November 24, 2014): 187–94. http://dx.doi.org/10.1177/2277977914548338.

Full text
Abstract:
The company (name disguised) started out as a coppersmith workshop over 100 years ago and is today a leader in the technology of plant engineering and construction for the beverage industries. However, competition has increased heavily in this area over the last decade, while advances in knowledge have correspondingly declined, particularly in producing technology systems, and there is now a discernible knowledge gap. In addressing this situation, the company has recognized that the business must find other markets and its technology core competencies, as well as the existing manufacturing facilities, should be a part of the evolving business. The diversification should be based on new products as well as focused on emergent markets. The case points out the need to identify current core competencies and assess relevant fields of potential diversification from an outside-in perspective as a realization of the first steps in establishing a completely new business portfolio in the long run.
APA, Harvard, Vancouver, ISO, and other styles
39

Khamis, Elias. "THE SHOPS OF SCYTHOPOLIS IN CONTEXT." Late Antique Archaeology 5, no. 1 (2009): 439–72. http://dx.doi.org/10.1163/22134522-90000117.

Full text
Abstract:
The shops of Scythopolis are contemporary with the initial layout of the Roman city. Similarly to other Roman cities in the East, the major streets of Scythopolis were colonnaded with rows of shops on both sides. While certain monuments and buildings in the city centre changed their character, design and function through time, the streets with their shops alongside, remained the most dominant and unchangeable feature of the city during several centuries. The owners of the shops, and their religious and cultural background, changed during the Roman, Byzantine and Early Islamic periods, but they still used the same buildings and probably sold similar products from one period to another. Sometimes it is possible to determine the function of certain shops. Among these were the shops of a coppersmith, a blacksmith, and a goldsmith, and shops for selling glass, pottery, building materials, and even souvenirs. Bakeries, taverns, and probably a butcher, can also be identified.
APA, Harvard, Vancouver, ISO, and other styles
40

Cherepniov, M. A. "A connection of series approximations and the basis of the Krylov space in block algorithms of Coppersmith and Montgomery." Journal of Mathematical Sciences 193, no. 4 (August 10, 2013): 622–30. http://dx.doi.org/10.1007/s10958-013-1489-0.

Full text
APA, Harvard, Vancouver, ISO, and other styles
41

Hasanpour, Marzieh, Mansooreh Tabatabaei, Mousa Alavi, and Vahid Zolaktaf. "Effect of Aerobics Exercise on Self-Esteem in Iranian Female Adolescents Covered by Welfare Organization." Scientific World Journal 2014 (2014): 1–6. http://dx.doi.org/10.1155/2014/456483.

Full text
Abstract:
Introduction. Deprivation of parents might decrease self-esteem (SE) and result in affective and social incompatibility. In this randomized control trial, we examined the effect of aerobics exercise on SE among female adolescents living with no natural family.Materials and Methods. The sample consisted of all female adolescents aged 13 to 19 years (n: 72) who were covered by Isfahan Welfare organization. Participants were assigned into intervention and control groups by matched random sampling. Intervention included 8 weeks of aerobics exercise. Coppersmith SE inventory was administered before and after intervention as well as after one month follow-up.Results. No significant difference was seen between pre-SE scores of intervention(32.7±8.4)and control(33.0±6.7)groups (t=.16,P=.87). A significant difference was obtained in post-SE scores (40.2±5.7versus34.7±6.8,t=3.58,P=.001) and in one month follow-up scores (36.4±5.2versus33.0±5.2,t=2.25,P=.03).Discussion. The results demonstrated a low level of pre-SE in both groups. However, a significant improvement was seen in posttest of intervention group which persisted even one month after intervention. It supports the use of aerobics for female adolescents deprived from family life.
APA, Harvard, Vancouver, ISO, and other styles
42

Zhang, Qize. "Research on fast matrix multiplication algorithm." Applied and Computational Engineering 31, no. 1 (January 22, 2024): 229–34. http://dx.doi.org/10.54254/2755-2721/31/20230154.

Full text
Abstract:
This research mainly focuses on fast matrix multiplication algorithms. Fast matrix multiplication is one of the most fundamental problems in computer science. The fast matrix multiplication algorithm differs from conventional matrix multiplication in that it offers a faster computational approach that can perform the operation in less than O(n3) time complexity. This algorithm provides a more efficient method for multiplying matrices, significantly reducing the computational requirements. The Laser method, developed by Coppersmith and Winograd, is an algorithm for matrix multiplication that does not involve direct computation. It establishes a relationship between matrix multiplication and tensors and simplifies the operation by finding an intermediate tensor that is computationally manageable. This method applies a series of simplification operations to determine an upper bound on the computational complexity of matrix multiplication. However, as matrices become larger, the computational and memory requirements increase, posing challenges for practical implementation. This research will present the main ideas and performance of the Laser method and discuss the improvements made to the Laser method, including refined analysis and asymmetric hashing techniques. Additionally, it highlights the need for further exploration, such as parallel computing and optimization strategies, to enhance the efficiency of matrix multiplication algorithms. Furthermore, this research will also provide a prospectus for the future of matrix multiplication algorithms, such as the practical implementation of the Laser method.
APA, Harvard, Vancouver, ISO, and other styles
43

Белавин, А. М. "Археологические исследования ИГИ УрО РАН." Perm Scientific Center Journal, no. 3 (December 7, 2023): 57–70. http://dx.doi.org/10.7242/2658-705x/2023.3.6.

Full text
Abstract:
The article describes the results of field and desk research of the Department of History, Archaeology and Ethnography of the Humanitarian Research Institute of PFRC UB RAS at the present stage, it analyzes the directions and topics of the conducted research. Of special interest is the study of the Rozhdestvenskiy archaeological complex - the city of Afkul dating back tothe X–XIV centuries, which is a part of the social and economic zone of Volga Bulgaria. The high level of development of metallurgical craft in the spheres of ferrous and non-ferrous metallurgy is noted. The most important and exciting discovery of recent years has been the study of a coppersmith’s workshop, which is the only one found in the archaeological sites of medieval times in the Volga-Kama region. Brief results are given of the Plotnikovo burial ground studies reflecting the process of ethnogenesis of Komi-Permyaks. The archaeological materials reveal direct links with the region of Novgorodchina. The results of the Ugorian epoch studies in Prikamye region are considered, the main results of the Bayanovo burial ground studies are described. The conclusions are drawn about the originality of medieval Prikamye jewellery working.The research has been carried out on the period of Russian colonization. The results are presented of complex historical and linguistic studies aimed at identifying the ancient water-drawn system in Perm Prikamye and the ways of penetration of the old Russian population into the region
APA, Harvard, Vancouver, ISO, and other styles
44

Bollinger, G. A., M. S. Sibol, and M. C. Chapman. "Maximum Magnitude Estimation for An Intraplate Setting - Example: The Giles County, Virginia, Seismic Zone." Seismological Research Letters 63, no. 2 (April 1, 1992): 139–52. http://dx.doi.org/10.1785/gssrl.63.2.139.

Full text
Abstract:
Abstract The process of maximum magnitude estimation is intrinsically subjective and depends directly on the experience and judgment of the analyst. Coppersmith et al. (1987; Table 1) discuss six methods for determining the maximum magnitude earthquake for a seismogenic zone. Those include: (I) Addition of an increment to the largest historical earthquake, (II) Extrapolation of magnitude recurrence relations, (III) Use of source dimensions to estimate magnitude, (IV) Statistical approaches (application of extreme value theory and maximum likelihood techniques), (V) Strain rate or moment release rate methods, and (VI) Reference to a global data base. Each technique has associated uncertainties in its applicability to the zone under consideration as well as in the specification of the key parameters involved. Of the six techniques listed above, only the first three are applicable to the data bases presently available for intraplate areas. Application of methods I, II, and III, to the Giles County, Virginia, seismic zone leads to the following results: MS,I = 6.9 (second subscript indicating which of the six methods was used) from adding a 1.0 increment to the maximum historical earthquake known to have occurred in the zone (May 31, 1897; MMI = VIII; mb = 5.8, MS = 5.9), MS,II = 7.0 from extension of the magnitude recurrence curve for the zone to a recurrence interval of 1000 years, and MS,III = 6.5 from the average of six estimates for the fault zone area. For a single estimate of maximum magnitude, the average of the above three values MS = 6.8 or equivalently, mb = 6.3 can be used.
APA, Harvard, Vancouver, ISO, and other styles
45

Lim, Haw Chuan, Fasheng Zou, and Frederick H. Sheldon. "Genetic differentiation in two widespread, open-forest bird species of Southeast Asia (Copsychus saularis and Megalaima haemacephala): Insights from ecological niche modeling." Current Zoology 61, no. 5 (October 1, 2015): 922–34. http://dx.doi.org/10.1093/czoolo/61.5.922.

Full text
Abstract:
Abstract Ecological niche modeling has emerged as an useful tool in the investigation of the phylogeographic histories of species or communities in a region. The high biodiversity (oftentimes cryptic), and complex geography and geological history of Southeast Asia particularly call for multipronged approaches in phylogeographic investigations. Past studies have focused on taxa that are associated with lowland rainforests, which is the dominant natural vegetation type. Here, we combine published phylogenetic data, ecological niche modeling and paleo-climate models to reveal potential drivers of divergence in two open-forest bird species, the oriental magpie-robin Copsychus saularis and Coppersmith barbet Megalaima haemacephala. In spite of broad overlap in current distributions, there are subtle differences in their climatic niches, which result in different responses to past climatic changes. For C. saularis, both Last Glacial Maximum climate models indicated that the entire Sundaland was climatically suitable, while phylogenetic analyses found divergent eastern and western Sundaland lineages. We thus postulate that this genetic divergence was a result of past separations of coastal habitats into eastern and western portions due to the emergence of Sunda shelf as sea-level fell. The current separation of morphological subspecies in Borneo is maintained by low climatic suitability (high annual rainfall) in certain regions. The extirpation of M. haemacephala from Borneo and southern Malay Peninsula might have been driven by unsuitable conditions (high temperature seasonality) in central Sundaland and/or the lack of open woodlands. Our study shows that ecological niche modeling adds a powerful dimension to our attempt to understand lineage evolution in space.
APA, Harvard, Vancouver, ISO, and other styles
46

Retno Palupi, Indriati, Wiji Raharjo, and Ronald A. Harris. "Description of the 1907 Aceh tsunami: impact (height, inundation and the travel time) on Cities of Banda Aceh, Meulaboh and Gunung Sitoli, Indonesia." Journal of Physics: Conference Series 2498, no. 1 (May 1, 2023): 012021. http://dx.doi.org/10.1088/1742-6596/2498/1/012021.

Full text
Abstract:
Abstract There was tsunami in Aceh in 2004 with the height reached to 30 meter. It was caused by a 9.2 magnitude earthquake on the Sunda megathrust. The tsunami destroyed most of the buildings in affected cities and claimed many fatalities. However, there were many tsunami incidents around Aceh before 2004. Aceh is located in the northern Sumatera Island of Indonesia. It is part of the Great Sunda Arc subduction zone, a convergent boundary between the Indo-Australian and Eurasian plates. Records of pre-instrumental tsunami in this region are scarce. Here we describe a tsunami in Aceh that happened in 1907. It was caused by a magnitude 7.6 earthquake on the Sunda megathrust, similar to the tsunami Aceh in 2004. Details of parameter information like the height, inundation, and the arrival times as the parameters after shaking was felt to some cities like Banda Aceh, Meulaboh and Gunung Sitoli are lacking and we want to calculate the these parameters to the cities although with the poor information. Based on the magnitude, the deformation and the possibilities of the parameter of the tsunami to the cities are calculated and modelled from Well and Coppersmith (1994) equation. After that we estimate the tsunami height, inundation and the travel time with Bayesian Markov Chain Monte Carlo and we get the result in the cities that the tsunami height is about 3 m, arrival times ranging from 20 second to 48 second and an inundation between 66 m to 127 m.
APA, Harvard, Vancouver, ISO, and other styles
47

Chopra, Girish, Anil K. Tyor, Seema Kumari, and Deepak Rai. "Status and conservation of avian fauna of Sultanpur National Park Gurgaon, Haryana (India)." Journal of Applied and Natural Science 4, no. 2 (December 1, 2012): 207–13. http://dx.doi.org/10.31018/jans.v4i2.251.

Full text
Abstract:
The present study was conducted in Sultanpur National Park Gurgaon, Haryana (India) from February, 2011 to January, 2012 to analyze the avian diversity along with its status and abundance. During the study period, a total of 113 species of birds belonging to 14 orders, 35 families and 80 genera were identified. Maximum 41 species belonging to 12 families of order Passeriformes represented 36.28% of the total identified avian fauna while Podicipediformes and Strigiformes were the least represented avian orders (0.88%) with one species each,namely, Little Grebe, Tachybaptus ruficollis and Spotted Owlet, Athene brama respectively. Out of total reported 113 species, 64 were ‘resident’ species and 49 were ‘migrant’ species. Most of the migratory species were winter visitors except Red throated flycatcher, Ficedula parva; Orange Headed Thrush, Zoothera citrine and Eurasian Golden Oriole, Oriolus oriolus which were summer visitors. In all, 42 species were ‘common’, 33 species were ‘uncommon’ and 38 species were ‘occasional’ bird species. Based on sighting, White Breasted Kingfisher, Halcyonsmyrnensis; White Breasted Water Hen, Amaurornis phoenicurus; Common Moorhen, Gallinule chloropus; Black Wing Stilt, Himantopus himantopus; Red Wattled lapwing, Vanellus indicus; Cattle Egret, Bubulcus ibis and Indian Pond Heron, Ardeola grayii were common wetland bird species of Sultanpur National Park while Pied king fisher, Ceryle rudis and Coppersmith Barbet, Megalaima haemacephala were ‘rarely sighted’ bird species. During the study period, 7 ‘globally threatened’ species, namely, Painted Stork, Mycteria leucocephala; Black neck Stork, Ephippiorhynchus asiaticus; Black headed Ibis, Threskiornis melanocephalus; Darter, Anhinga melanogaster; Pacific Reef Egret, Egretta sacra; Sarus Crane, Grus antigone alongwith Hogson bushchat, Saxicola insignis were also recorded from the study area.
APA, Harvard, Vancouver, ISO, and other styles
48

Adcock, Ben, Rodrigo B. Platte, and Alexei Shadrin. "Optimal sampling rates for approximating analytic functions from pointwise samples." IMA Journal of Numerical Analysis 39, no. 3 (May 23, 2018): 1360–90. http://dx.doi.org/10.1093/imanum/dry024.

Full text
Abstract:
AbstractWe consider the problem of approximating an analytic function on a compact interval from its values at $M+1$ distinct points. When the points are equispaced, a recent result (the so-called impossibility theorem) has shown that the best possible convergence rate of a stable method is root-exponential in M, and that any method with faster exponential convergence must also be exponentially ill conditioned at a certain rate. This result hinges on a classical theorem of Coppersmith & Rivlin concerning the maximal behavior of polynomials bounded on an equispaced grid. In this paper, we first generalize this theorem to arbitrary point distributions. We then present an extension of the impossibility theorem valid for general nonequispaced points and apply it to the case of points that are equidistributed with respect to (modified) Jacobi weight functions. This leads to a necessary sampling rate for stable approximation from such points. We prove that this rate is also sufficient, and therefore exactly quantify (up to constants) the precise sampling rate for approximating analytic functions from such node distributions with stable methods. Numerical results—based on computing the maximal polynomial via a variant of the classical Remez algorithm—confirm our main theorems. Finally, we discuss the implications of our results for polynomial least-squares approximations. In particular, we theoretically confirm the well-known heuristic that stable least-squares approximation using polynomials of degree N &lt; M is possible only once M is sufficiently large for there to be a subset of N of the nodes that mimic the behavior of the $N$th set of Chebyshev nodes.
APA, Harvard, Vancouver, ISO, and other styles
49

Voda, Mihai, Andrei Murgu, Constantin Adrian Sarpe, Steven M. Graves, and Calin Avram. "The Țigani Community Adaptability to Changes in Rural Romania and the COVID-19 Impact." International Journal of Environmental Research and Public Health 18, no. 20 (October 11, 2021): 10622. http://dx.doi.org/10.3390/ijerph182010622.

Full text
Abstract:
Romanian rural villages are struggling to survive present times when youngsters leave for a better life in the city while elders work the land like a hundred years ago. Our paper integrates human environments research with public health preparedness, presenting the Țigani (Gypsy/Roma) ethnic group from rural Romania as an example to the world. The future security of mankind will require a new understanding of the human place in its environment. That will lead to a new society, not the most powerful or intelligent, but the one that is more adaptable to changes, with sensitive and interconnected community members. Therefore, the Țigani ethnic group that fought for its rights and flourished despite unfavorable odds, including the recent COVID-19 pandemic, represents the best example for a new world that prioritizes humans, promotes health and wellbeing, facilitating innovation and transformative networks environmental integration. This research attempts to quantify the Țigani′s unique attributes that helped their communities survive and made them more adaptive to change. Always marginalized, they identified the other ethnic groups’ weaknesses to penetrate the villages and learned to use the smartphone apps to communicate, for their trades, coppersmith, metal roof tiles and drainage systems. Our research was based on Geographical Information System, Microsoft Power Bi analytics data visualization tools and statistical analysis with SPSS V20 to demonstrate what enables their flourishing and what resistance they face locally. We argue that the Țigani′s intense social cooperation, strong sense of family, community and mutual assistance helped them to fight COVID-19, generating their significant adaptability to the societal changes and their power to keep intact their cultural identity. The results show how the constant growing Țigani population changed and may change Romania′s rural environments in the future.
APA, Harvard, Vancouver, ISO, and other styles
50

Wijayanti, R., G. R. Pasma, A. Nurwijayanti, and R. A. Rachman. "Tsunami Numerical Modelling in Ujung Kulon National Park with the Earthquake Magnitude Scenario of 6.5 and 6.9 Mw." IOP Conference Series: Earth and Environmental Science 1118, no. 1 (December 1, 2022): 012070. http://dx.doi.org/10.1088/1755-1315/1118/1/012070.

Full text
Abstract:
Abstract Tsunami modelling was conducted to simulate tsunami events based on earthquake data previously occurring around Ujung Kulon National Park (TNUK), Banten Province using TUNAMI-F1 and TUNAMI-N3. TUNAMI-F1 is a modelling method to get the wave height and tsunami arrival time with a grid spacing of 0.00167°. While the TUNAMI-N3 is a model that applies the theory of wave propagation linearly in a grid variation to get a high output of tsunami inundation. The tsunami source data was used from historical earthquake generation on January 14, 2022 (6.5 Mw) and August 2, 2019 (6,9 Mw). The reverse fault type scenario from Wells & Coppersmith (1994) is used to calculate the scaling law with length, width, and the focal mechanism value obtained from the United States Geological Survey (USGS) to generate initial waves based on the multideform model. The TUNAMI-N3 model applies a nested model with variations in grid spacing and the most detailed value is 68,556 m. The tsunami wave height based on the magnitude 6.5 Mw scenario is around 0.001 m to 0.05 m with the highest wave height found on the southern coast of TNUK and the southern coastal area of Peucang Island (0.03-0.05m). The inundation produced is only visible in the E1 domain reaching 96-192 m in areas A, B, C. Then, the maximum inundation area is the south coast of TNUK (0.01-0.03m). Based on the second scenario, the height of the tsunami waves generated is in the range of 0.001 − 0.3 m. The maximum tsunami height was in the Rancecet Beach area, south of Tinjil Island, the south, east, and north coasts of TNUK (0.03-0.3m). The run-up distance resulting from scenario 1 is less than 1 km. Based on TUNAMI-F1 model results, wave height maximum caused by 6.5 Mw magnitude is higher than 6.9 Mw.
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the bibliographies on the topic 'Coppersmiths' for other source types:
Books
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography