Drawing Research Articles

Some Notes to the Technique of Boccaccino’s Drawings

In terms of the hitherto known body of Boccaccio Boccaccino’s drawings, the only support used was paper, clean, tinted, and colourfully prepared. Boccaccino drew, to a limited extent, using a metal stylus (lead stylus was also employed for squaring) and a pen. Much more often, he would use a brush, red chalk, or black chalk. The support used for Boccaccino’s drawing of St. Jerome, nowadays kept in Munich, was a green-ochre prepared paper.

Length-Measuring and Drawing Intruments of 18-19th Centuries at M.V. Lomonosov’s Museum of Mae Ras (Kunstkamera)

Length-Measuring and Drawing Intruments of 18-19th Centuries at M.V. Lomonosov’s Museum of Mae Ras (Kunstkamera)

Alternative Media for the Preservation of Traditional ARTS Through Collaboration Pop Art Style Wayang Pacitan Beber

This research is a qualitative descriptive study with the main focus of describing and explaining the illustrative style of pop art stylization as an alternative medium for the development of Beber Pacitan puppets. This research aims to develop the wayang beber character through the stylization of the wayang characters, which seeks to preserve the Pacitan beber puppet. The stages of analysis from various sources were generated in the form of information, literature reviews and interviews which were all carried out using an interactive model, where each component of the analysis included the stages of data collection, data reduction, presentation, and concluding. The data validity test used data triangulation techniques, namely, data source triangulation and theory triangulation. The data analysis technique uses interactive chain analysis with the stages of data collection, data reduction, data presentation, and conclusion drawing. The results of the research are the characters of the wayang beber characters with pop art stylization so that they can become alternative media for the development of traditional art. Traditional art combined with various styles and illustration techniques can develop the Beber Pacitan wayang so that it can be more attractive to future generations without losing its identity.

Changes in U.S. Security and Defense Strategy toward China: Assessment and Policy Implications

This study analyzes American defense and security strategy towards China and assesses its policy impact on security on the Korean Peninsula and the Asia-Pacific region more generally. The rapid rise of the People’s Republic of China as a geopolitical power and its aggressive foreign policy has considerably heightened fears among U.S. policymakers that China poses a threat. The intensifying strategic rivalry and distrust between Washington and Beijing since the inauguration of President Donald J. Trump in 2017 is leading to worsened relations between the two countries. This trend is likely to continue in the foreseeable future, and it is also expected that the American grand strategy will view China as the new global adversary, drawing down the “War on Terror” in the process. China is indeed fast emerging as the target of sustained deterrence, and this shift in American strategic thinking will likely continue even after the 2020 U.S. Presidential elections. Intensifying Sino-American geopolitical competition is resulting in a new Cold War posture, reflecting in turn a lack of strategic dialogue. As a result, the risk of Sino-American military conflict in geopolitical hotspots around the world (including the Korean Peninsula) is rapidly increasing, and countries in the region are worried about being entangled in a Great Power conflict between the two countries. In the meantime, the United States is soliciting countries in the region to join an “anti-Beijing” grouping of sorts, seeking to integrate pre-existing alliances (e.g., the ROK-U.S. Alliance) into this new grouping. Beijing, for its part, is attempting to weaken those traditional alliances with Washington, through measures such as economic coercion. Seoul is bearing the brunt of such sustained pressure from Beijing and is being pressured by both countries to “pick” one side over the other. Practically speaking, rather than pick sides, Seoul ought to chart a middle course, proceeding with “strategic confidence” that draws on a clear delineation of national interest and backing of the South Korean public. In particular, it would behoove Seoul to provide opportunities for deliberation on Korean Peninsula security issues, enhancing the prospects for meaningful strategic dialogue between Washington and Beijing. Concurrently, Seoul would also benefit from vigilant monitoring of the changing balance of power between United States and China, utilizing insights drawn from keen monitoring to further enhance its defense capabilities. In so doing, it is expected that Seoul will enhance its strategic value and military deterrence capabilities. Concurrently, by way of proactive military-to-military diplomatic engagement with neighboring countries, cooperative deterrence capabilities also would have to be significantly enhanced.

Abstract PO-269: Documentation methods for vulvar pain: Implications for detection of vulvar cancer, a cancer with known disparities

Abstract Introduction. Vulvar pain can be a symptom of vulvar cancer, which is frequently detected at late stage for elderly women, and has racial disparities. Better documentation, detection, and monitoring of vulvar pain, may eventually lead to early detection of vulvar cancer to reduce age and racial disparities in this cancer. Unfortunately, typical body outline drawings for measuring pain location do not allow documentation of the specific details of vulvar pain. Our study purpose was to compare two measures of pain location for patients with another vulvar pain condition, vulvodynia. Methodology. Using baseline data from an ongoing randomized clinical trial conducted in Chicago, 62 women with vulvodynia marked their pain on a genital specific outline and 59 of those also marked their pain on a full body outline. The women’s ages ranged from 20-62 years (31.8±9.4 years). Their education levels were high school (10%), some college (9%), bachelors degree (43%), and advanced leveled education (38%). 11% were Asian, 7% were Black, 74% were White, and 9% were other race. They completed PAINReportIt, an electronic version of the McGill Pain Questionnaire, which allowed women to mark the region of their pain and describe their pain intensity. ImageJ software was used to isolate and analyze the surface area included within the markings on a full body outline with a total of 48 segments and on a genital area outline with a total of 22 segments. Descriptive statistics and Pearson’s correlation were used to analyze the number of segments marked and the number of pixels marked on each segment of both outlines. Results. As a context for women’s pain experience, the average pain intensity was 3.9±2.6. On the full body outline, 41 women marked the genital area only contrary to 18 women who marked both the genital area and elsewhere. On the full body outline, 24/48 segments were marked and the most frequent were segments near the vulvar region: left anterior thigh (n=59), right anterior thigh (n=54), left lumbar/iliac region (n=49), and right lumbar/iliac region (n=47). Some women also marked regions in the gluteal and posterior thigh region: left gluteal region (n=13), right gluteal region (n=9), and left hamstrings (n=10). On the genital specific outline, 22/22 body areas were marked. The most frequent vulvar specific areas marked were: vestibular fossa (n=51), left labia minora (n= 52)and vagina (n=55). There was a moderate correlation (r=.43, p=.001) between the body surface area marked on the full-body outline and the body surface area marked on the genital area outline. Conclusion. Study findings support the validity of the body surface area as a measure of pain location using either outline. The genital area outline provides more specific information about pain in the vulvar region, and implications for its use have the potential to eliminate disparities of vulvar cancer through the improved detection and monitoring of vulvar pain. Citation Format: Guettchina Telisnor, Rishabh Garg, Yingwei Yao, Judith Schlaeger, Diana J. Wilkie. Documentation methods for vulvar pain: Implications for detection of vulvar cancer, a cancer with known disparities [abstract]. In: Proceedings of the AACR Virtual Conference: Thirteenth AACR Conference on the Science of Cancer Health Disparities in Racial/Ethnic Minorities and the Medically Underserved; 2020 Oct 2-4. Philadelphia (PA): AACR; Cancer Epidemiol Biomarkers Prev 2020;29(12 Suppl):Abstract nr PO-269.

Meningkatkan Kreativitas Menggambar Menggunakan Media Finger Painting Pada Anak Kelompok B Paud Gentaralia Desa Jambat Akar Kecamatan Semidang Alas Maras Kabupaten Seluma

Abstract: The purpose of this research is to know the Children’s drawing creativity by use Finger painting media in group B paud Gentaralia village Jambat akar Kec. Semidang Alas Maras. Seluma, to know the increase in children’s drawing creativity of finger painting media in PAUD GENTARALIA village Jambat akar kec. Semidang Alas Maras. Seluma. Class action Research ocused on the classroom situation, or commonly known as the Classroom Action research procedure used in cycle-shaped cycles. The main subject in this study is the children paud Gentaralia Desa jambar akar Kec. Semidang Alas Maras. Group B Seluma numbered 15 persons. Data collection techniques using observation methods and documentation. Data analysis is done in a qualitatively qualitative – quantitatively with its use to determine the improvement of processes expressed in a predicate, whereas quantitative data analysis is used to determine the increase in results by using a percentage Abstrak: Tujuan penelitian ini adalah untuk mengetahui kreativitas menggambar anak dengan menggunakan media finger painting kelompok B di PAUD GENTARALIA Desa Jambat Akar Kec. Semidang Alas Maras Kab. Seluma, untuk mengetahui peningkatan kreativitas menggambar anak kelompok B dengan penggunaan media finger painting di PAUD GENTARALIA Desa Jambat Akar Kec. Semidang Alas Maras Kab. Seluma. Penelitian Tindakan Kelas (PTK) yang difokuskan pada situasi kelas, atau lazim dikenal dengan classroom action research prosedur yang digunakan berbentuk siklus (cycle). Subjek utama dalam penelitian ini adalah anak PAUD GENTARALIA Desa Jambat Akar Kec. Semidang Alas Maras Kab. Seluma kelompok B berjumlah 15 Orang. Teknik pengumpulan data menggunakan metode observasi dan dokumentasi. Analisis data dilakukan secara deskriptif kualitatif-kuantitatif dengan penekananya digunakan untuk menentukan peningkatan proses yang dinyatakan dalam sebuah predikat, sedangkan analisis data kuantitatif digunakan untuk menentukan peningkatan hasil dengan menggunakan persentase.

Perubahan Pola Kehidupan Masyarakat Asli Terhadap Pertumbuhan Industri Tekstil Di Desa Lojikobong Kecamatan Sumberjaya Kabupaten Majalengka

The existence of industrial estates can also trigger population mobility, namely there are immigrants to areas around industrial estates. The presence of immigrants will influence a shift in social behavior in the level of solidarity between local residents and migrants who carry their values ​​and behavior with the local community. As a result, the weakening and diminishing of solidarity in terms of mutual cooperation is a result of the busyness and the large number of people who spend time at work. Busyness is what makes people pay less attention to the religious field as well. The method used by the writer in preparing this research is qualitative. Data collection using data collection techniques and tools as observation, interviews and documentation. Some data analysis techniques are data reduction, display data, and drawing conclusions. The existence of an industrial area in Lojikobong Village, Sumberjaya District, Majalengka Regency has implications for changes in the behavior of the surrounding community, namely in the behavior of mutual cooperation in the fields of environmental cleanliness, public interest and disaster management. Behavioral changes resulting from the establishment of industrial estates are in the economic life they get. It can be seen from the people's lifestyle which is shown in consumptive behavior, because the entry of industry automatically opens job opportunities for the surrounding community. Then factory workers in addition to getting a basic salary, also get income from overtime work and other profitable factory policies. Changes in behavior in the religious field prior to the presence of industrial estates such as routine recitation, yasinan and congregational prayer. Public enthusiasm for participating in the series of religious activities seems high.
 Abstrak
 Keberadaan kawasan industri juga dapat memicu terjadinya mobilitas penduduk yaitu terdapat penduduk pendatang ke daerah sekitar kawasan industri. Keberadaan penduduk pendatang akan berpengaruh terhadap pergeseran perilaku sosial dalam tingkat solidaritas antara penduduk lokal dan penduduk pendatang yang membawa tata nilai dan perilakunya dengan masyarakat setempat. Akibatnya melemah dan melunturnya solidaritas dalam hal bergotong royong diakibatkan dari kesibukan dan banyaknya masyarakat yang menghabiskan waktu di tempat kerja. Kesibukan itulah yang membuat masyarakat menjadi kurang perhatian terhadap bidang keagamaan juga. Metode yang digunakan penulis dalam penyusunan penelitian ini adalah kualitatif. Pengumpulan data dengan teknik dan alat pengumpulan data sebagai yaitu observasi, wawancara dan dokumentasi. Beberapa tekhnik analisis data yaitu data reduksi, data display, penarikan kesimpulan. Keberadaan kawasan industri di Desa Lojikobong Kecamatan Sumberjaya Kabupaten Majalengka berimplikasi pada perubahan perilaku masyarakat disekitarnya yaitu dalam perilaku bergotong royong pada bidang kebersihan lingkungan, kepentingan umum dan penanganan musibah. Perubahan-perubahan perilaku akibat berdirinya kawasan industri adalah dalam kehidupan enonomi yang mereka peroleh. Nampak dari gaya hidup masyarakat yang ditunjukkan pada perilaku konsumtif, karena telah masuknya industri otomatis terbukanya peluang kerja bagi masyarakat sekitar. Kemudian pekerja pabrik selain mendapatkan gaji pokok, mendapatkan juga penghasilan dari kerja lembur serta kebijakan-kebijakan lain dari pabrik yang menguntungkan. Perubahan perilaku dalam bidang keagamaan sebelum hadirnya kawasan industri seperti pengajian rutin, yasinan dan sholat berjamaah. Antusias masyarakat untuk mengikuti rangkaian kegiatan keagamaan tersebut nampak tinggi.

El Parc del Colors. Viaje – Viatge 20(20)

El Parque de los Colores de Mollet del Vallés, inaugurado el año 2001 como homenaje póstumo al arquitecto Enric Miralles, es una obra de reactivación del espacio púbico, instalada en el centro de su biografía. Intentando reconstruir una versión de la historia de esta obra, e imposibilitado de volver a visitar el Parque, inicio un viaje por medio de conversaciones a distancia con personas claves en la generación de este proyecto, quienes me han permitido enfocar la mirada en la continuidad de los trayectos, en el momento de las preguntas inconclusas procedentes de otros finales abiertos. Con estas personas Miralles hizo estos caminos, los cuales él decía que no sabía imaginar, construía las ideas por medio del dibujo, de la suma de capas e intérpretes, colaboradores sucesivos, del mismo problema. A 28 años de la llegada del encargo al estudio en Carrer d'Avinyó, y a 20 años de su partida, se siguen imaginando versiones del mismo proyecto y constatando que este lugar nunca ha dejado de transformarse, Enric Miralles lo sabía.

Artistic License: Celebrating the talents of students and educators

This monthly column features a colored pencil drawing of his brother by student Flynn Scorzelli and a drawing of school buses by art educator Pete Edwards.

Mindset Masyarakat Terhadap Produk Lokal di Desa Gelok Mulya dalam Perkembangan Kawasan Industri

This research discusses the community mindset towards local products in Gelok Mulya village in the development of industrial areas. The background of this study is some people who feel a mindset towards local products. Many supporting factors that must be fulfilled are the core problems for the people's mindset. Therefore, only a small proportion of people have a good mindset on local products in their own regions in industrial areas. This study aims to determine the community towards local products in the village of Gelok Mulya in the development of the industrial area and the factors that affect the mindset of the community towards local products in the village of Gelok Mulya in the development of the industrial area. This type of research is a type of qualitative research using the case study method. Data collection techniques using observation, interviews and documentation conducted on four sources and facilities owned by the community Gelok Mulya. The collected research data is then processed through three stages, namely data reduction, data presentation and drawing conclusions from the processed data. From the research conducted, it is known that the community mindset towards local products in Gelok Mulya village is in the development of industrial areas. Still leads to industry. This can be seen from the enthusiasm of public trust to be able to develop local blacksmith products. In the current industrial area, the parties are still improving their human resources and facilities in order to continue to increase a good mindset in industrial estates.
 Abstrak
 Penelitian ini membahas tentang Mindset Masyarakat terhadap Produk Lokal di desa Gelok Mulya dalam Perkembangan Kawasan Industri. Kajiannya dilatarbelakangi oleh sebagian masyarakat yang merasa mindset terhadap produk lokal. Banyak faktor pendukung yang harus dipenuhi menjadi masalah inti untuk mindset masyarakat. Oleh karena itu, hanya sebagian kecil masyarakat yang mampunyai mindset baik pada produk likal di daerah sendiri dalam kawasan industry. Penelitian ini bertujuan untuk mengetahui Masyarakat terhadap Produk Lokal di desa Gelok Mulya dalam Perkembangan Kawasan Idustri.dan faktor yang mempengaruhi mindset Masyarakat terhadap Produk Lokal di desa Gelok Mulya dalam Perkembangan Kawasan Idustri. Jenis penelitian ini merupakan jenis penelitian kualitatif dengan menggunakan metode studi kasus. Teknik pengumpulan data dengan menggunakan observasi, wawancara dan dukumentasi yang dilakukan terhadap empat orang narasumber dan fasilitas yang dimiliki masyarakat Gelok Mulya. Data penelitian yang terkumpul kemudian diolah melalui tiga tahapan, yaitu reduksi data, penyajian data dan menarik kesimpulan dari data yang telah diolah. Dari penelitian yang dilakukan, diketahui bahwa Mindset Masyarakat terhadap Produk Lokal di desa Gelok Mulya dalam Perkembangan Kawasan Idustri. Masih mengarah ke industri. Hal ini dapat dilihat dari antusiasme kepercayaan masyarakat untuk dapat mengembangkan produk lokal pandai besi. Dalam kawasan industry saat ini, pihak masih terus meningkatkan sumber daya manusia dan fasilitas yang dimiliki guna terus meningkatkan mindset yang baik dalam kawasan industri.

Understanding Contextualised Liveability from the Bottom Up: A Qualitative Analysis of the Participatory Planning Proposals in Daegu, South Korea

This paper takes a qualitative approach to examining liveability by analysing the participatory planning proposals delivered by the local residents in Daegu, South Korea. Drawing on the textual resources of the proposals and interview data, the perceived liveability was found to vary across different neighbourhoods, and community cohesion and community capacity building were found highly valued in the liveability discourses in the Korean context. The paper argues that our understandings of liveability should be localised and contextualised at a sub-municipal level. It also highlights that participatory planning can be useful in articulating local communities’ perception and experiences of liveability of their immediate localities, particularly in the less attractive and less affluent neighbourhoods in the city.

Pencil Drawing Stable Interface for Reversible and Durable Aqueous Zinc‐Ion Batteries

AbstractZinc‐ion batteries (ZIBs) have been regarded as one of the most promising aqueous energy storage devices due to their low‐cost, high capacity, and intrinsic safety. However, the relatively low Coulombic efficiency caused by the dendrite formation and side reactions greatly hinders the rejuvenation of ZIBs. Here, an utterly simple approach by pencil drawing is employed to improve the poor performance of normal Zn anode and hinders the formation of passivated byproduct as well as serious dendrite growth. Significantly, the functional graphite layer can not only act as ions buffer, but also guide the uniform nucleation of Zn2+ in graphite voids. With such synergy effect, the graphite‐coated Zn anode (Zn–G) displays low overpotential, high reversibility, and dendrite‐free durability compared with the pristine Zn. Consequently, a low voltage hysteresis of ≈28 mV can be achieved and maintained over 200 h. Furthermore, the Zn–G anode is paired with a V2O5·xH2O cathode to construct a rechargeable ZIB. As‐assembled device can output high energy/power density of 324.3 Wh kg−1/3269.8 W kg−1 (based on the active mass loading in cathode) together with a capacity retention of ≈84% over 1500 cycles at a current density of 5 A g−1.

The Comparability of Measures in the Ageism Module of the Fourth Round of the European Social Survey, 2008-2009

Age is an important dimension that is used by people to categorize others. Age-based discrimination is directed toward specific age groups (young and old). In spite of their importance, attitudes toward the elderly have hardly been studied from a cross-country perspective. The fourth round of the European Social Survey (ESS) from 2008-2009 offers, for the first time, the opportunity to study ageism and attitudes toward age groups from a cross-country perspective (European Social Survey Round 4 Data, 2008). However, this opportunity also bears the risk of drawing wrong conclusions, if the scales measuring ageism are not comparable across the countries under study. Such comparisons require measurement equivalence across countries. In the current study, utilizing ESS fourth round data from 29 European countries we examine the cross-country measurement equivalence properties of two concepts that are measured by multiple indicators in the module: (1) competence and warmth and (2) experience of age discrimination. We test for measurement equivalence using two analytical methods: multi-group confirmatory factor analysis (MGCFA) and the alignment optimization. Our findings suggest that cross-country comparisons of these measures are trustworthy. We briefly discuss cross-country differences in competence and warmth and experience of age discrimination. Finally, we underline the importance of testing the cross-group equivalence of measurement instruments before using them in different groups (such as countries) so that meaningful substantive conclusions can be drawn.

La epigrafía romana de Acinippo (Ronda la Vieja, Málaga): documentación gráfica de Antonio Madrid Muñoz

Analizamos en este trabajo unos documentos gráficos relativos a diversas inscripciones de Acinippo (Ronda la Vieja, Málaga) conservados en la Real Academia de la Historia (Madrid). Estos documentos (dos láminas de dibujos y una fotografía) formaban parte del material que complementaba la “Memoria” que, sobre dicho lugar, escribió el cronista rondeño Antonio Madrid Muñoz; sin embargo, no llegaron a incluirse en la publicación de la misma, que vio la luz en 1913, privando a la comunidad científica de unos datos de gran interés para la correcta valoración de los epígrafes en ella registrados

Le « tournant de la rigueur » comme processus régulatoire

Cet article se propose d’étudier le « tournant de la rigueur » de mars 1983 sous un angle sociologique. Interprétant cet épisode marquant de l’histoire politique française comme un processus de régulation, il montre que ce dernier n’est pas seulement le fruit d’une conversion au néolibéralisme des élites françaises ou de la pression d’une contrainte économique extérieure, mais aussi le résultat d’une action collective s’inscrivant dans un espace décisionnel. S’appuyant sur différents corpus de données empiriques (archives, annuaires, témoignages), il s’efforce de cerner les contours de la controverse en matière de politique économique. Après avoir reconstitué la liste des acteurs y ayant participé, il analyse leurs positions dans la structure sociale et relationnelle. Il souligne le poids que revêtent les formes de statut social, politique et étatique, dans le déroulement de la controverse, et montre l’importance du travail relationnel que réalisent certains acteurs. Dans le cadre de ce processus régulatoire, il met en lumière la portée de phénomènes tels que l’homophilie, l’intermédiarité, la concurrence de statut et la construction de niche sociale.

The 2030 Agenda and South-South cooperation: The role of IBSA Fund in the implementation of SDGs

This paper analyzes the role of the India, Brazil and South Africa Facility for Poverty and Hunger Alleviation (IBSA Fund) in the implementation of the Sustainable Development Goals. Drawing lessons from the IBSA Fund project “Poverty Reduction through Livestock Development” in Saint Lucia, we highlight the advantages of South-South cooperation as a means of implementing the 2030 Agenda.

OSMANLI KUMAŞ SANATINDA AHŞAP KALIP BASKI TEKNİĞİ

Geleneksel basmacılık sanatı, desenlerin tahta kalıp, fırça ve kalem gibi araçlar yardımıyla boyaların kumaş üzerine basılarak ya da elle çizilerek aktarılması ve desenlendirilmesi işlemidir. Yazmacılık sanatı olarak da bilinen bu sanat, XVI. yüzyıldan sonra Osmanlı İmparatorluğu'nda geniş bir kullanım alanı bulmuştur. İmparatorlıkta, düz kumaşları desenlendirmek için uygulanan kalıpla baskı tekniği; kaftan, yastık, yorgan yüzü, seccade, bohça, mendil, sofra altı, peşkir gibi pek çok üründe kullanılmıştır. En güzel örneklerine XVI, XVII, XVIII, ve XIX. yüzyıllarda rastlanılan baskılı kumaşlar, üstün nitelikleri ile sarayın tercih edilen eşyaları arasında yerini almış; kullanılan malzeme, renklerin haslığı, desenlerdeki incelik ve akıcılıkla döneminin en güzel örneklerini oluşturmuşlardır. Bu çalışma ile tarihsel süreç içerisinde Osmanlı kumaş sanatı kapsamında basmacılık sanatı ele alınacak,baskılı kumaş örnekleri teknik, desen ve renk özellikleri açısından incelenecektir.

Story Map Caminhos d’O Conspirador: Um percurso literário na vila de Marvão com Branquinho da Fonseca

Os autores pretendem apresentar uma nova forma de divulgacao da investigacao em turismo literario, num formato mais atrativo, recorrendo as novas tecnologias e bem assim, aferir as suas potencialidades. A ferramenta tecnologica utilizada foi o story map que permite combinar mapas na Web com aplicacoes e templates que incorporam funcoes interativas e mapas dinâmicos. Um dos recursos utilizados na producao do story map foi a base de dados do Museu Virtual de Turismo (MUVITUR) em cujo site o produto final sera disponibilizado. Os conteudos e itinerarios turisticos literarios organizados por especialistas permitem envolver os viajantes online nas geografias imaginarias, para as quais os escritores nos remetem. Experiencias virtuais mais envolventes possibilitam a cada utilizador a descoberta dos melhores percursos por territorios literarios. O objeto do presente trabalho foi o conto “O Conspirador”, de Branquinho da Fonseca (1905-1974) tendo o percurso na vila de Marvao sido enriquecido com desenhos e fotografias da sua autoria.

Structural model updating of the Gageocho Ocean Research Station using mass reallocation method

To study oceanic and meteorological problems related to climate change, Korea has been operating several ocean research stations (ORSs). In 2011, the Gageocho ORS was attacked by Typhoon Muifa, and its structural members and several observation devices were severely damaged. After this event, the Gageocho ORS was rehabilitated with 5 m height to account for 100-yr extreme wave height, and the vibration measurement system was equipped to monitor the structural vibrational characteristics including natural frequencies and modal damping ratios. In this study, a mass reallocation method is presented for structural model updating of the Gageocho ORS based on the experimentally identified natural frequencies. A preliminary finite element (FE) model was constructed based on design drawings, and several of the candidate baseline FE models were manually built, taking into account the different structural conditions such as corroded thickness. Among these candidate baseline FE models, the most reasonable baseline FE model was selected by comparing the differences between the identified and calculated natural frequencies; the most suitable baseline FE model was updated based on the identified modal properties, and by using the pattern search method, which is one of direct search optimization methods. The mass reallocation method is newly proposed as a means to determine the equivalent mass quantities along the height and in a floor. It was found that the natural frequencies calculated based on the updated FE model was very close to the identified natural frequencies. In conclusion, it is expected that these results, which were obtained by updating a baseline FE model, can be useful for establishing the reference database for jacket-type offshore structures, and assessing the structural integrity of the Gageocho ORS.

Drawing on Each Other

Drawing on Each Other