394 research outputs found
PENGARUH KONSENTRASI PREKURSOR TERHADAP MORFOLOGI DAN UKURAN NANOKRISTAL ZNO
No full textAbstrak : Nanokristal ZnO yang berstruktur heksagonal wurtzit dengan berbagai ukuran, morfologi dan orientasi kristal telah berhasil disintesis menggunakan metoda deposisi larutan pada berbagai konsentrasi prekursor. Nanokristal ZnO ditumbuhkan di atas substrat ITO (Indium Tin Oxide) dalam larutan berair zink nitrat heksahidrat dan metenamin dengan konsentrasi prekursor 1 mM, 10 mM dan 100 mM selama 8 jam. Karakterisasi menggunakan XRD dan SEM menunjukkan adanya peningkatan ukuran diameter kristal, derajat kristalinitas dan orientasi kristal dengan meningkatnya konsentrasi prekursor. Nanokristal dengan derajat kristalinitas dan struktur kristal terbaik didapatkan pada deposisi menggunakan konsentrasi prekursor 100 mM dengan ukuran kristal ~ 600 nm serta orientasi kristal hampir seragam pada sumbu-c. Nanokristal dengan ukuran dan orientasi seragam serta kristalinitas yang baik sangat berpotensi sebagai material optoelektronik generasi mendatan
APLIKASI KITOSAN DARI LIMBAH CANGKANG KEPITING SEBAGAI PENGAWET ALAMI DAN PENAMBAH NILAI NUTRISI PADA IKAN DI TEMPAT PELELANGAN IKAN KOTA BENGKULU
No full textPenggunaan kitosan sebagai pengawet alami dan penambah nilai nutrisi pada ikan di Tempat Pelelangan Ikan (TPI) Kota Bengkulu telah berhasil dilakukan. Penelitian ini bertujuan untuk mengetahui konsentrasi optimal NaOH pada proses deasetilasi terhadap lama umur simpan ikan yang diawetkan dengan kitosan serta mengetahui pengaruh kitosan terhadap sifat fisis, struktur dan nilai gizi dari ikan. Kitosan di isolasi dari limbah cangkang kepiting pesisir pantai Kota Bengkulu melalui proses deproteinasi, demineralisasi dan deasetilasi. Dari hasil penelitian didapatkan kitosan dengan konsentrasi NaOH 50% pada proses deasetilasi yang menunjukkan nilai optimum dengan lama umur simpan ikan selama 2 hari, derajat deasetilasi 90,12%, kadar protein sebesar 18,21 % dengan jumlah mikroba sebesar 4,0 x 102 mikrob koloni/gram
A Narrative Approach to Authorship: The Work of Evi Tampold from Her Mother/Publisher’s (and Her Own) Perspective
No full textCollaborative authorship in graphic medicine is examinable from a number of perspectives. One neglected approach is to look for developments in how an individual artist collaborates over the course of illustrating different graphic medicine novels. In the first, the artist collaborated with her younger self in trying to regain memories of an until then forgotten past. In the second, she worked closely with the writer to try to determine exactly what the author intended, adding a new dimension to the piece unavailable without the illustrations. In the third still to be completed work, her illustrations are based on collaboration with only the text and a few photographs, lacking direct contact with the author. How this artist’s three methods of collaboration have defined her collaborative authorship will be the focus. What is unique is this study will be undertaken from the stand point of the illustrator’s publisher, who is also her mother. </jats:p
My Audio Installation Artwork Air Free /Air Free 2 as a practice research output. Here you can listen to the Audio of the installation and read the words that the visitors could read while listening.
Get PDFAir Free/Air Free 2 – Audio Installation Exhibited in: THE NEW NEW, 83rd Thessaloniki International Fair’s Pavilion 2 - Thessaloniki, Greece. 8-16 September 2018 FREIRAUM in Berlin, On the State of Freedom in Europe: Exhibition, discussion, concert, performance in Berlin. ZK/U Center for Art and UrbanisticsSiemensstraße 27, 10551 Berlin. 12-17 March 2019. Freiraum Exhibition: From Berlin to Thessaloniki. LABattoir -Thessaloniki, Greece. 17-24 May 2019. Created for a collaboration with the Goethe Institut, ArtBOX&Artecitya in the Freiraum project. Co-Funded by the Creative Europe Programme of the European Union. As an academic researcher and audio practitioner, one of my main interests is understanding the intimate qualities of mediated sound. The radio voice, this fragment of an otherwise unknown person, contains some of their most intimate qualities. In this project a space is created that simulates the unseen intimacies of the airwaves. Voices meet and converse privately yet freely, through the intimacy of the voice as pure sound. The voices in this artwork were collected in Thessaloniki-Greece and Carlisle- UK. The anonymous Greek-speaking voices were collected for me in Thessaloniki by Maria Kyrou, Stella Massia & Eleni Papoulidou from the community group Media Lab by LABattoir, after workshops where I taught audio documentary, theory and practice. The aim was for local people to bring me the voices of their community, rather than me selecting these as an outsider who might carry preconceptions. The English-speaking voices belong to poets from the Speak Easy poetry group in Carlisle: Jane Moss-Luffrum, Phil Hewitson, Susan Cartwright Smith, James Scott Riddick, John Chambers, Ruby Evans, Kim Braschko(& her 2 children Maya and Henry). The poets were sent audio clips of the voices from Greece along with three short poems I wrote in English, deriving from the content of the stories collected in Thessaloniki. The poets were asked to write poems as responses to these voices and my poem. Despite only listening to voices they could not understand and my poems being a very abstract representation of those voices, the poets in Carlisle absolutely captured the essence of those stories and provided very emotive responses. I edited these voices together in a conversation that reveals how the intricacies, fears, aspirations of distant communities might be much closer than they seem. The voices in this artwork are an intimate aural tapestry of all those things that we have in common. The work was listened to via headphones, within an intimate, private audio booth. Poems written by Evi K based on the interviews and stories collected in Greece: 1. I am a grandmother Eighty-one years old when I was eleven, There was guerrilla fighting then. My mother sent me back to the village To get a police permit Night fell, I was taken In by a friend. The fighters took my friend. They did not take me cause I was thin, a fake. I made it back to Neapoli. I went to school, they gave us cocoa and raisin bread. Then they took us to the islands, in Mytilene For eight months My dad, they were sad They filled in the paperwork and they took us back I finished primary school. My story is this one story. I have many but I cannot tell any more. 2. I am twenty years old. I come from Albania. People there do not warm up to me. I cannot quite speak like them. I came to Thessaloniki when I was ten months old. Life here is better than it is there. For me. Here I can open up to people. Cause this is the language I speak. 3. I am fifty-three years old. I am a musician. Today With millions of people around Here, now, I am sitting in my bedroom. Twenty meters away lives my best friend Five meters away, my cousin. I do not want to get in touch. It is so sweet to be alone. I am replete. I want good friends. I want a wife. I have a child. I am not really lonely. This is why I want to be alon
MODIS NDVI and EVI, 16-day time series for Europe at 1 km resolution
No full textNormalized Difference Vegetation Index (NDVI) and Enhanced Vegetation Index (EVI) from MODIS data for Europe at 1 km resolution.
Source data:
- MODIS/Terra Vegetation Indices 16-Day L3 Global 500 m SIN Grid (MOD13A1 v006): https://lpdaac.usgs.gov/products/mod13a1v006/
- MODIS/Aqua Vegetation Indices 16-Day L3 Global 500 m SIN Grid (MYD13A1 v006): https://lpdaac.usgs.gov/products/myd13a1v006/
The MOD/MYD13A1 Version 6 product provide Vegetation Index (VI) values at a per pixel basis at 500 meter (m) spatial resolution. There are two primary vegetation layers. The first is the Normalized Difference Vegetation Index (NDVI), which is referred to as the continuity index to the existing National Oceanic and Atmospheric Administration-Advanced Very High Resolution Radiometer (NOAA-AVHRR) derived NDVI. The second vegetation layer is the Enhanced Vegetation Index (EVI), which has improved sensitivity over high biomass regions. The algorithm for this product chooses the best available pixel value from all the acquisitions from the 16 day period. The criteria used is low clouds, low view angle, and the highest NDVI/EVI value.
For the time periods October 2016 - March 2017 and August 2020 - April 2021, the original data has been reprojected to ETRS89-extended / LAEA Europe and aggregated to a 1 km grid. The temporal resolution is 16 days. Bad quality pixels or pixels with snow/ice and/or cloud cover have been masked using the provided quality assurance (QA) layers and appear as "no data".
File naming:
productCode.acquisitionDate[A (YYYYDDD)]_mosaic_spatialResolution_frequency_VI.tif
example: MOD13A1.A2020305_mosaic_1000m_16_days_NDVI.tif
The date is Year and Day of Year.
Values are NDVI/EVI * 10000. Example: Value 6473 = 0.6473
Projection + EPSG code:
ETRS89 / LAEA Europe (EPSG:3035) (EPSG: 3035)
Spatial extent:
north: 72N
south: 30S
west: -52W
east: 49E
Spatial resolution:
1 km
Temporal resolution:
16 days
Pixel values:
NDVI/EVI * 10000 (scaled to Integer; example: value 6473 = 0.6473)
Software used:
GRASS GIS 8.0
Original dataset license:
All data products distributed by NASA's Land Processes Distributed Active Archive Center (LP DAAC) are available at no charge. The LP DAAC requests that any author using NASA data products in their work provide credit for the data, and any assistance provided by the LP DAAC, in the data section of the paper, the acknowledgement section, and/or as a reference. The recommended citation for each data product is available on its Digital Object Identifier (DOI) Landing page, which can be accessed through the Search Data Catalog interface. For more information see: https://lpdaac.usgs.gov/products/myd13a1v006/
Processed by:
mundialis GmbH & Co. KG, Germany (https://www.mundialis.de/)Acknowledgements:
This study was partially funded by EU grant 874850 MOOD. The contents of this publication are the sole responsibility of the authors and don't necessarily reflect the views of the European Commission
Green Synthesis ZnO Nanoparticles Using Rinds Extract of Sapindus rarak DC
Get PDFThe green synthesis of ZnO nanoparticles was carried out using a natural capping agent, Sapindus rarak DC rinds extract at low-temperature calcination and environmentally friendly solvent. The mixture of Zn(CH3COO)2, NaOH, and rinds extract was sonicated for 4 h at room temperature. The calcination was carried out at low temperature, 95oC for 8 h, and resulted in pale brown powder. XRD and SEM were used to confirm the structure and to analyze the morphology of ZnO nanoparticles respectively. XRD pattern of ZnO nanoparticles was corresponding to JDCPS card no 36-1451 with hexagonal structure. The average crystal size of ZnO nanoparticles was calculated using the scherrer equation and the average size was about 35.8 nm. From this study, the extract of the rind of Sapindus rarak DC was found to be a natural capping agent to synthesis ZnO nanoparticles because Sapindus rarak DC contain a pythochemical compound to limit the interaction between crystal seeds
Peride Celal’in Tiyatro Dünyasını Konu Alan Romanı: “Rüyalar Evi”
Get PDFBetween the years of 1935, from when she published her first story, and 2002, when she published her last novel Deli Ask, Peride Celal (Yonsel) was known as a unique writer with both the subjects she covered and her researcher identity in the art of novel writing. Peride Celal ' s writing career can be divided into two periods. During the first fifteen years of her writing career (1935-1950), she wrote popular works focusing on love and adventure in the category of romance, and with her novel Uc Kadinin Romani (1954), she entered her period of mastery, where her novel technique gained importance and she wrote more realistic and qualified works based on observation. Celal ' s early novels, which were serialized in periodicals before being published in book form, were effective in increasing the circulation of the daily newspapers in which they were published and helped in making the ' novel ' genre more appealing to the readers they reached. Peride Celal ' s success in narration with her clean and fluent Turkish, which is the most prominent feature of her novels, has been observed since her first novels. Nevertheless, Peride Celal did not adopt her first period novels, wrote with the concern of making a living and did not allow her works to be published in book form. The novel Ruyalar Evi (1951), which remains in the blind spot between the author ' s first and second period novels, is one of the works that the author does not want to remember. This novel, which has remained in the newspaper pages since the day it was published in the newspaper titled Cumhuriyet, has not been included in any academic studies on Peride Celal until today. In this novel, Peride Celal summarizes the developmental stages of Turkish Theater between the years of 1900 and1950 by examining the actors, directors and works, and by mentioning many classical, contemporary, and local and foreign plays along with stage artists. The two main characters of the work, Nemide Gencay and Ahmed Cem, are reminiscent of Neyyire Neyyir and Muhsin Ertugrul. The aim of this study is to determine the place of Ruyalar Evi among Peride Celal ' s novels in terms of its subject matter and mounting, and to ensure that the novel takes its rightful place in Turkish literature alongside novels that deal directly with the art of theater
Price Differentials in Monetary Unions: The Role of Fiscal Shocks
Get PDFWe study the effect of regional expenditure and revenue shocks on price differentials for 47 US states and 9 EU countries. We identify shocks using sign restrictions on the dynamics of expenditures, revenues, deficits and output and construct two estimates for structural price differentials dynamics, one for the average and one for each unit, which optimally weight information contained in the data for all units. On average, expansionary fiscal disturbances produce positive, while distortionary balance budget shocks produce negative price differential responses. The negative price differentials responses in some units is partially explained by spillovers and labour supply effects. Copyright 2007 The Author(s). Journal compilation Royal Economic Society 2007.
Quantifying the Uncertainty of Short-Term Vegetation Anomalies Detection Using Eo-Based Coarse-Resolution Vegetation Products
No full textSatellite-based Earth Observation systems archived a variety of vegetation products during the last 50 years, which can reveal regional to global ecosystem dynamics across diverse spatiotemporal scales. The anomaly metrics such as Vegetation Condition Index (VCI) defined by comparing the current vegetation growth condition to historical average status based on long-term EO-based vegetation products were widely used to delineate abnormal vegetation variation exerted by either climatic or anthropogenic factors (e.g., droughts, wildfires). However, currently available long-term vegetation products may differ from each other in terms of sensors (observational platform or spectral bands), bio-physical definitions (e.g., NDVI, EVI, LAI, and VOD), spatiotemporal resolution, as well as the time-spans, which results in inconsistency across these vegetation products. Taking the VCI as an example, this study evaluated the uncertainty of vegetation anomalies detected based on different vegetation products over the middle reach of the Yangtze River by explicitly considering the effect of sensors, biophysical definitions, and time-spans. The preliminary results showed that VCI derived from NDVI products from different sensors (AVHRR vs. MODIS) induced significant inconsistent anomalies over most landscapes. The differences resulting from products with different biophysical definitions (NDVI vs. EVI, LAI, and VOD) are much lower than those from different sensors but still significant over specific areas. As for the time-spans, the 20-year NDVI based VCI presented a considerable reduction in variance over the study area on average compared to VCI calculated based on 5-year NDVI. In summary, caution should be taken when applying EO-based vegetation products for vegetation anomalies mapping, especially for quantitative assessment.Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Optical and Laser Remote Sensin
PENETAPAN KADAR VITAMIN B1 PADA BERAS VARIETAS CIGEULIS DAN VARIETAS ANAK DARO SEBELUM DAN SETELAH PENCUCIAN MENGGUNAKAN METODE SPEKTROFOTOMETRI UV-Vis
No full textBeras merupakan bahan makanan pokok yang sangat penting di dunia termasuk di
Indonesia, dimana beras putih lebih mendapat perhatian dibandingkan beras
lainnya. Beras putih varietas Cigeulis dan varietas Anak Daro merupakan jenis
beras yang banyak diminati warga di Kota Bengkulu. Kandungan beras sebagai
zat makanan yang diperlukan oleh tubuh, antara lain: karbohidrat, lemak, protein,
serat kasar, abu, dan vitamin seperti vitamin B1. Penelitian ini merupakan analisis
kandungan vitamin B1 pada beras varietas Cigeulis dan varietas Anak Daro
sebelum dan setelah pencucian menggunakan metode spektrofotometri UV-Vis.
Absorbansi dari vitamin B1 diukur pada panjang gelombang 615 nm, dengan
menggunakan baku pembanding Tiamin Hidroklorida BPFI. Kadar rata-rata
vitamin B1 pada beras sebelum pencucian varietas Cigeulis 0,331% , varietas
Anak Daro 0,385%. Sedangkan kadar vitamin B1 pada beras varietas Cigeulis
setelah pencucian dilakukan 1x, 2x dan 3x pencucian berturut-turut adalah
0,301%, 0,235% dan 0,184%. Pada varietas Anak Daro setelah pencucian juga
dilakukan 1x, 2x dan 3x pencucian berturut-turut 0,333%, 0,258% dan 0,199%.
Penelitian ini menunjukkan bahwa beras varietas Anak Daro mempunyai kadar
vitamin B1 yang tinggi di bandingkan Varietas Cigeulis dan kadar vitamin B1
pada beras sebelum pencucian memiliki kadar yang lebih tinggi dari pada setelah
pencucian.
Kata kunci : Beras Varietas Cigeulis, Beras Varietas Anak Daro, Vitamin B1,
Spektrofotometri UV-Vi
- …
