328,595 research outputs found
Karagöl- Sahara Milli Parkı’ndaki (Şavşat-Artvin/Türkiye) Karagöl’den yeni desmid kayıtları
No full textKaragöl’ün (Şavşat, Artvin) bentik alg florası Ekim 2008 ile Eylül 2010 tarihleri arasında incelenmiştir. Actinotaenium diplosporum var. americanum, Cosmarium pseudoexiguum, Gonatozygon kinahanii, Staurastrum boreale var. quadriradiatum, S. hantzschii ve Staurodesmus dejectus var. apiculatus Türkiye’nin desmid florası için ilk kez kaydedilmiştir.The benthic algal flora of Karagöl Lake (Şavşat, Artvin) was investigated between October 2008 and September 2010. Actinotaenium diplosporum var. americanum, Cosmarium pseudoexiguum, Gonatozygon kinahanii, Staurastrum boreale var. quadriradiatum, S. hantzschii and Staurodesmus dejectus var. apiculatus were recorded for the first time for the desmid flora of Turkey
Diffusive author(s), cohesive author: Analysis of S/N (1994)
No full textThis study indicates the ways in which various aspects of the author(s) are brought forth in Dumb type’s performance art, the S/N production. Previous research has suggested a non-hierarchical organization of Dumb type and the absence of a “privileged author” in Dumb type’s collaborative work, S/N. However, the results that I have investigated from member’s interviews on the creative process of S/N along with my analysis of the recorded images of S/N, indicate a different aspect of the author(s). First, S/N was created through, so to speak, the collective ideas of the members of Dumb type. Further, S/N has at least nine quotations from previous performances, installations, and printed writings, besides the work-in-progress technique. Explicating one of the “author functions” as given by Michel Foucault, each text has plural subjects of the author. However, it has been revealed from members’ interviews that Teiji Furuhashi had a decision-making role in selecting the members’ ideas within the performance. Since then, S/N has had plural subjects of creation; however, Furuhashi is one of the subjects of creation along with the “privileged author.” S/N has plural authors (diffusive authors) yet at the same time, it has a “privileged author,” Teiji Furuhashi (cohesive author)
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
A new approach for camera supported machine learning algorithms based dynamic headlight model's design
No full textTraffic accidents continue to be a significant issue in modern society. Accidents
usually happen on dark, mountainous, narrow, steep and curved roadways. One
of the primary causes of such accidents is the drivers’ weak sight brought on by
the headlights of moving vehicles. In this study, a dynamic headlight model was
designed using camera supported machine learning algorithms to improve the
drivers’ vision during night drive. In this design, the issues of enabling a lighting
field supported by image processing programmed with machine learning,
dynamic adjustment of the high beam headlights’ LED cells in response to the
vehicle approaching from the opposite direction, traffic-sign recognition system,
lane-keeping system, and automatic adjustment of headlight angles were
addressed. In this direction, a novel dynamic headlight model that will reduce
the risk of accidents caused by lighting was presented, and its analyses were
performed
Status bintil akar dan pertumbuhan vegetatif kacang tanah (Arachis hypogaea) setelah pemberian pestisida pada media tumbuh
No full textGEMINI HARIYANTI J2019,20747. Status Bintil Akar dan Pertumbuhan Vegetatif Kacang Tanah (Arachis hypogaea. L) Setelah Pemberian Pestisida pada Media Tumbuh. (Di bawah bimbingan Koen Praseno dan Endah Dwi Hastuti).
Penelitian ini bertujuan untuk mengetahui pengaruh Furadan 3G dan Goal 2E , mengetahui perbedaan pengaruh dosis Furadan 3G dan Goal 2E yang berbeda, serta untuk mengetahui dosis Furadan 3G dan Goal 2E yang memberikan pengaruh paling besar terhadap status bintil akar dan pertumbuhan vegetatif kacang tanah. Penelitian ini dilaksanakan di Colomadu Karanganyar, Pada tanggal 12 Maret - 10 Mei 1997.
Penelitian dilaksanakan dengan menggunakan Rancangan Acak Lengkap dengan tujuh perlakuan dan tiga kali ulangan, perlakuan yang dimaksud adalah : Furadan dengan deals 0,080 gr, 0,125 gr, 0,169 gr, Goal 2E dengan dosis 0,005 ml, 0,008 ml, 0,011 ml, dan kontrol.
Parameter yang diamati adalah iumlah bintil akar, persentase bintil akar efektif, berat basah bintil akar, berat kering bintil akar, berat kering tanaman dan tinggi tanaman. Data dianalisis secara statistik dengan analisis sidik ragam. Perbedaan antar perlakuan diuji dengan uji Beda Ganda Duncan pada taraf 5%.
Sidik ragam menunjukkan perlakuan Furadan 3G dan Goal 2E tidak berpengaruh terhadap Jumlah bintil akar, persentase bintil akar dan berat basah bintil akar. Uji Beda Ganda Duncan menuniukken bahwa perlakuan Furadan 30 pada dosis 0,125 gr menurunkan berat kering bintil akar dan pada dosis 0,169 gr menurunkan tinggi tanaman. Perlakuan Goal 2E menunjukkan bahwa Goal 2E pada dosis 0,005 ml sudah menurunkan berat kering bintil akar, berat kering tanaman dan tinggi tanaman_
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Adaptation de l'algorithme SOM à l'analyse de données temporelles et spatiales: application à l'étude de l'évolution des performances en matière d'emploi
No full textCet article étudie l'évolution des performances européennes en matiére d'emploi depuis le début des années quatre vingt dix, en utilisant l'algorithme SOM adapté au traitement de données qui sont à la fois temporelles et spatiales.La carte de Kohonen ainsi obtenue permet d'établir une classification des pays de l'Union Européenne qui tient compte simultanément de l'ordonnancement temporel et spatial des données, et permet alors de comparer les trajectoires des différents pays dans le temps. Nous comparons les résultats obtenus par cette méthode à ceux reposant sur une carte de Kohonen traditionnelle.Classification ; Algorithme SOM ; Emploi ; Union Européenne
Elektrik enerjisi üretim iletim ve dağıtımında siber güvenlik
No full textElektrik enerjisi, günümüz enerji çeşitleri içerisinde en temiz ve hemen hemen her alanda kullanılan bir
enerji çeşididir. Bu nedenle, bu enerji üretim aşamasından tüketicilere ulaştırılıncaya kadar her aşamada
güvenilir ve korunabilir olmalıdır. Günümüzde gelişen bilgi iletişim teknolojileri ile beraber tüm elektrik
tesislerinde bulunan ekipmanlar birbirleri ile iletişim kurabilen bir dönüşüm içerisine girmektedir. Özellikle,
akıllı şebekelere dönüşüm ve dağıtık üretim sistemlerinin bu şebekeye entegrasyonuyla enerjinin izlenebilir ve
kontrol edilebilirliğini gerektirmektedir. Bu gereksinimlerin web tabanlı olması, siber güvenlik ile ilgili önemli
problemleri ortaya çıkarmıştır. Bu problemleri tespit etmek, çözmek ve engelleyerek elektrik şebekesini
korumak için iletişim altyapısının optimal bir şekilde güvenilir ve etkin oluşturulması gerekmektedir. Bu
çalışmada, elektrik enerjisinin üretim aşamasından tüketicilere ulaştırılmasına kadarki tüm süreçte: iletişim
altyapısındaki siber güvenlik gereklilikleri, ağ zafiyetleri, güvenli iletişim mimarileri ve protokolleri ile siber
saldırıların önlenmesi konuları ele alınmıştır. Ayrıca elektrik şebekesi içinde karşılaşılacak siber güvenlik
açıklıkları incelenmiş, bu problemlere çözüm ve öneriler sunulmuştur.Electrical energy is the cleanest energy type among today's energy types and is used in almost every
field. Therefore, this energy must be reliable and maintainable at every stage, from the generation stage to the
delivery to the consumers. Today, together with the developing information and communication technologies,
the equipments in all electrical facilities enter into a transformation that can communicate with each other. In
particular, the transformation into smart grids and the integration of distributed generation systems into this grid
require traceability and controllability of energy. The fact that these requirements are web-based has revealed
important problems related to cyber security. In order to detect, solve and prevent these problems and protect the
electricity grid, the communication infrastructure needs to be created in an optimal way, reliable and efficient. In
this study, the entire process from the production stage to the delivery of electrical energy to consumers: cyber
security requirements in communication infrastructure, network vulnerabilities, secure communication
architectures and protocols, and prevention of cyber attacks are discussed. In addition, cyber security
vulnerabilities to be encountered in the electrical network were examined, solutions and suggestions were
presented to these problems
Determination of the Cytotoxicity and Antibiofilm Potential Effect of Equisetum arvense Silver Nanoparticles
No full textThis study aimed to synthesize and characterize silver nanoparticles (AgNPs) by green synthesis from Equisetum arvense (Ea) extracts and to investigate their cytotoxicity, antibiofilm activity, and α-glucosidase enzyme inhibition. Diverse characterization techniques were applied to verify the production of nanoparticles. SEM examination confirmed that the size of nanoparticles is in the range of 40–60 nm. Also, interactions between silver and natural compounds of plant extract were confirmed through FT-IR and EDX analyses. It was determined that Equisetum arvense silver nanoparticles had antibiofilm activity against three different clinical strains with high biofilm-forming ability. AgNPs reduced the biofilm-forming capacity of clinical A. baumannii isolate with strong biofilm-forming capacity by approximately twofold, while the capacity of clinical K.pneumonaie and E.coli isolates decreased by 1.5 and 1.2 fold, respectively. The α-glucosidase enzyme inhibition potential of the AgNPs, which is determined as 93.50%, was higher than the plant extract with, and the α- 30.37%. MTT was performed to assess whether incubation of nanoparticles with A549 and ARPE-19 cell lines affected their viability, and a dramatic reduction in cell growth inhibition of both A549 and ARPE-19 cells was observed. It has been shown that A549 cells treated with 200 and 150 µg/mL nanoparticles had less cell proliferation compared to control cells at 24-h and 48-h incubation time. According to these results, Ea-derived AgNPs appear to have potential anticancer activity against A549 cancer cells. Investigating the effects of green synthesis nanoparticles on microbial biofilm and various tumors may be important for developing new therapies. The outcomes of this study have showed that Ea-AgNPsmay have a high potential both in the treatment of pathogenic strains that form biofilms, as well as in anticancer therapy use. © 2023, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature
Evaluasi Formasi dan Perhitungan Volume Hidrokarbon Pada Formasi Talang Akar, Lapangan S, Cekungan Sumatera Selatan
No full textPenelitian telah dilakukan di Lapangan S, Cekungan Sumatera Selatan dengantarget evaluasi di Formasi Talang Akar. Formasi Talang Akar merupakanreservoar utama di Cekungan Sumatera Selatan. Evaluasi formasi diperlukanuntuk mengetahui kualitas, kuantitas dan potensi reservoar di Formasi TalangAkar. Evaluasi dilakukan melalui analisis petrofisika untuk mendapatkanparameter-parameter, yaitu volume shale, porositas dan saturasi air. Tujuan daripenelitian ini untuk mendapatkan parameter-parameter petrofisika berdasarkandata wireline logging dari sumur di daerah penelitian. Parameter-parametertersebut digunakan untuk identifikasi zona produktif/potensial di Formasi TalangAkar, pada Lapangan S dengan menghitung volume hidrokarbon. Perangkat lunakyang digunakan adalah Interactive Petrophsycs v3. 6 (IP v3.6). Hasil penelitian iniadalah, Formasi Talang Akar di daerah penelitian terdapat 12 zona/lapisanreservoar, berturut-turut dari bawah ke atas sebagai berikut I2, I1, H, G, F, E, D,C, B1, B, A1, A. Evaluasi formasi di daerah penelitian menghasilkan parameterparameter petrofisika pada masing-masing zona di Formasi Talang Akar.Parameter tersebut digunakan untuk menghitung volume hidrokarbon (STOIIP)masing-masing zona. Nilai STOIIP terbesar dari zona B1, yang merupakan zonayang paling produktif/potensial di Formasi Talang Akar, kedua terbaik zona I1dilanjutkan dengan I2.Kata kunci: Evaluasi Formasi, Porositas, Saturasi Air, Volume Hidrokarbo
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