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Can Rivalry in R&d Be Harmful Under Supply Function Competition?
No full textWe consider a duopoly with cost asymmetry and demand uncertainty and show that rivalry in (process) R;D can be extremely harmful to both firms even in the presence of spillovers if the firms produce under supply function competition. However, if they produce under Cournot competition, firms can earn higher profits in the presence of R;D rivalry than what they could earn when they (mutually) invested in no R;D. We also show that R;D rivalry always works to widen the efficiency gap between the firms under Cournot competition, and also under supply function competition if R;D spillovers are present. On the other hand, consumers' welfare is affected by R;D rivalry only under supply function competition. Under this competition, consumers always prefer the presence of R;D rivalry with or without spillovers to the absence of R;D rivalry; however, they obtain their highest surplus under R;D rivalry when there are no R;D spillovers
Overview of the Clef-2022 Checkthat! Lab on Fighting the Covid-19 Infodemic and Fake News Detection
No full text13th International Conference of the CLEF-Association (CLEF) - Experimental IR meets Multilinguality, Multimodality, and Interaction -- SEP 05-08, 2022 -- Univ Bologna, Bologna, ITALYWe describe the fifth edition of the CheckThat! lab, part of the 2022 Conference and Labs of the Evaluation Forum (CLEF). The lab evaluates technology supporting tasks related to factuality in multiple languages: Arabic, Bulgarian, Dutch, English, German, Spanish, and Turkish. Task 1 asks to identify relevant claims in tweets in terms of check-worthiness, verifiability, harmfullness, and attention-worthiness. Task 2 asks to detect previously fact-checked claims that could be relevant to fact-check a new claim. It targets both tweets and political debates/speeches. Task 3 asks to predict the veracity of the main claim in a news article. CheckThat! was the most popular lab at CLEF-2022 in terms of team registrations: 137 teams. More than one-third (37%) of them actually participated: 18, 7, and 26 teams submitted 210, 37, and 126 official runs for tasks 1, 2, and 3, respectively.Part of this work has been funded by the German Federal Ministry of Education and Research (BMBF) under the grant no. 01FP20031J. The responsibility for the contents of this publication lies with the authors.German Federal Ministry of Education and Research (BMBF) [01FP20031J]Conf ; Labs Evaluat Forum Asso
Çevre Tarihi Perspektifinden Iıı. Mehmed'in 1596 Eğri (eger) Seferi
No full textThis thesis examines Mehmed III's military operation on Eğri in 1596 and the Eğri Expedition Diaries (Eğri Seferi Rûznâmesi) of 1596 using an environmental and climate history approach. It investigates the impact of climate, the environment, and, in a related context, logistics on the military operation process, which occupies more time and space than battle moments. Putting aside the number of soldiers, weapon technologies, military training, and strategy differences between the warring groups, the answer to the question of how nature plays a role in the course of the conflict and the physical-psychological condition of the soldiers will be revealed. Unlike the general tendency in Ottoman military history studies, the relation between human and nature during the campaign will be the main focus instead of sieges and field battles.Bu tez, III. Mehmed'in 1596 yılında ordusunun başına geçerek Eğri'ye düzenlediği askerî harekâtı ve 1596 tarihli Eğri Seferi Rûznâmesi'ni çevre ve iklim tarihinin metodolojisini kullanarak ele almaktadır. Zaman ve mekân olarak muharebe anlarının kendisinden daha çok yer kaplayan askerî harekât süreci üzerinde iklimin, çevrenin ve bunlarla ilişkili bir çerçevede de lojistiğin nasıl bir etkisinin olduğu incelenmektedir. Doğanın savaşın gidişatı ve askerlerin fiziksel-psikolojik durumu üzerinde nasıl bir rol oynadığı sorusunun cevabı, mücadele eden tarafların asker sayıları, silah teknolojileri, askerî eğitim ve strateji farklılıkları bir kenara bırakılarak cevaplandırılacaktır. Askerî tarih çalışmalarında pek yapılmadığı haliyle, kuşatmaları ve meydan savaşlarını ana odak noktası haline getirmeyerek sefer sürecinde yaşanan insan ve doğa ilişkilerine mercek tutulacaktır
Finding Conditions In Reprocessing Of Glass Wool Waste As A Heat Insulator
No full textThis research aimed to find the process of value adding for glass wool waste from the glass wool composite board used in the vehicle industry. The waste was reprocessed to be an insulator and to determine the suitable conditions for hot-press forming to create new materials having high thermal resistant properties. Firstly, the properties of the original board; the thermal resistances (R) and the noise absorption coefficients (NRC), were measured and were found averages of 0.9055 m2K/W and 0.3955, respectively. The reprocessing conditions were varied by 2 levels; high and low, of 5 control factors; density, thickness, pressure, temperature, and surface roughness. Three repeating processes for each condition were performed. The Design of Experiment (DoE) was the full factorials; 25 experiments, by using the Analysis of Variance (ANOVA) to find main and interaction factors relating to the properties. From the ANOVA results with the ? level of significance at 0.05, it was found that the main factors responding to the high values of the thermal resistance were the thickness and density. This resulted in the suitable conditions for the hot-press process of both the new smooth and rough pads with a density of 96 kg/m3 and a thickness of 25 mm. The R values of the new insulators were in between 0.88 – 0.98 m2K/W and, additionally, the high NRC values were also provided in between 0.46 – 0.49. These findings could be applied for wall designing, wall decorations and heat shields for indoor rooms and different types of buildings
Turkey's Isolation From the Eastern Mediterranean Gas Forum: Ideational Mechanisms and Material Interests in Energy Politics
No full textThe energy politics highlight rising tensions and new cooperative patterns in the Eastern Mediterranean region. We question the reasons for the lack of cooperation between Turkey and regional states during the regionalization process, in terms of offshore hydrocarbon resources development, between 2010 and 2020. In contrast to power-driven accounts for cooperation, we demonstrate the role of ideational mechanisms through framing analysis and process tracing. We argue that Turkey's isolation from the Eastern Mediterranean Gas Forum and shifts in Turkish foreign policy preferences are explained plausibly by cognitive priors, redefined causal ideas, and emulation of exogenous ideas
An Industrially Viable Wavelet Long-Short Term Memory-Deep Multilayer Perceptron-Based Approach To Tool Condition Monitoring Considering Operational Variability
No full textArticle; Early AccessTool wear is a fundamental aspect of the machining process. Therefore, tool condition monitoring is of paramount importance to ensure part quality and avoid catastrophic damage. Tool wear has a direct correlation with the vibration emanating from the process; however, accurate prediction of tool wear indirectly from the vibration level is difficult because machining parameters such as cutting speed, depth of cut, and feed rate may vary continuously during an operation, depending on tool diameter, geometry, and material. These affect vibration levels as much as wear progress, which demands advanced intelligence that can adapt to variations in cutting conditions. This paper proposes a wavelet long-short term memory (WLSTM)-deep multilayer perceptron (DMLP)-based model, which utilizes the continuous wavelet transform for preprocessing of raw data, long-short term memory (LSTM) for extracting temporal information, and DMLP for regression of the tool wear. First, the model is evaluated by comparing it with other LSTM studies developed using the PHM 2010 dataset in the literature. Afterward, its industrial viability and adaptability performance to variations in cutting speed and tool diameter are assessed with several training scenarios. The results revealed auspicious performance in the proposed architecture's potential in predicting tool wear under operational variability
Kablosuz Algilayici Aglarda Çoklu Omurga Üzerinden Tüme Gönderim Probleminin Hedef Programlama ile Optimizasyonu
No full textIn this study, the counterpart of the hotspot problem in group communications, which is generally considered in the context of unicast in the Wireless Sensor Network (WSN) literature, has been investigated. In the first phase of the study, maximum energy dissipation is minimized by using multiple backbones in a broadcasting WSN application. With the multi-backbone design, the role assignment of nodes in the network and the connections used are allowed to change. For this purpose, two different Mixed Integer Programming (MIP) models called Flow Based (FB) and Node Based (NB) are constructed. When the performance comparison are made, it is decided that the NB is more scalable and the study continues with this model. In addition, a theoretical bound has been obtained for the number of backbones that can be used in a network. In the second phase, the total energy consumption and maximum energy consumption metrics in the network are optimized separately, and it is proved that the network do not behave in the same way in the common topology samples. Finally, maximum energy consumption and end-to-end delay metrics are optimized both separately and together. The trade-off between these two contradictory metrics is analyzed by Goal Programming (GP), which is a multi-objective optimization method. All mathematical models are solved using PYTHON coding language and CPLEX commercial solver, and optimal results are achieved in all tests.Bu çalışmada, Kablosuz Algılayıcı Ağ (KAA) literatüründe genelde teke gönderim bağlamında ele alınmış olan sıcak nokta probleminin grup haberleşmesindeki karşılığı araştırılmıştır. Çalışmanın ilk aşamasında, tüme gönderim yapan bir KAA uygulamasında çoklu omurgalar kullanılarak maksimum enerji tüketimi enküçüklenmiştir. Çoklu omurga tasarımıyla, ağdaki düğümlere yapılan rol atamasının ve kullanılan bağlantıların değişebilmesine izin verilmiştir. Bu amaçla Akış Tabanlı (İng. Flow Based-FB) ve Düğüm Tabanlı (İng. Node Based-NB) olarak adlandırılan iki farklı Karma Tamsayılı Programlama (İng. Mixed Integer Programming-MIP) modeli kurulmuştur. Performans karşılaştırması yapıldığında NB'nin daha ölçeklenebilir olduğuna karar verilmiş ve çalışmaya bu modelle devam edilmiştir. Ayrıca bir ağdaki kullanılabilecek omurga sayısı için teorik bir üst sınır elde edilmiştir. İkinci aşamada, ağdaki toplam enerji tüketimi ve maksimum enerji tüketimi metrikleri ayrı ayrı eniyilenerek ortak topoloji örneklerinde ağın aynı şekilde davranmadığı kanıtlanmıştır. Son olarak, maksimum enerji tüketimi ve uçtan uca gecikme metrikleri hem ayrı ayrı hem de birlikte eniyilenmiştir. Birbiriyle çelişen bu iki metrik arasındaki ödünleşim çok amaçlı bir eniyileme yöntemi olan Hedef Programlama (İng. Goal Programming-GP) ile analiz edilmiştir. Tüm matematiksel modeller PYTHON kodlama dili ve CPLEX ticari çözücüsü kullanılarak çözdürülmüş, alınan tüm testlerde optimal sonuçlara ulaşılmıştır
Pathogens in Ticks Collected in Israel: Ii. Bacteria and Protozoa Found in Rhipicephalus Sanguineus Sensu Lato and Rhipicephalus Turanicus
No full textSensoz, Sabiha/0000-0002-4768-6295; Arslan Akveran, Gonul/0000-0003-4114-9234; Mumcuoglu, Kosta Y./0000-0001-8125-6099; Taylan Ozkan, Aysegul/0000-0001-8421-3625; Keskin, Adem/0000-0002-1681-8363Rhipicephalus sanguineus sensu lato and Rhipicephalus turanicus are very prevalent in Israel and are known to be vectors of human and animal diseases. The aim of this study was to identify the pathogens found in questing ticks and such parasitizing domestic and wild animals. Ticks were collected from 16 localities in Israel with the flagging technique and by examining dogs, hedgehogs, a badger and a tortoise. Bacterial and protozoal patho-gens were analyzed by PCR and sequencing. Overall, 374 R. sanguineus s.l. specimens were collected, out of which 142 by flagging and 132 from six dogs. Rickettsia africae, Rickettsia massiliae, Rickettsia conorii subsp. israelensis, and Anaplasma sp. were identified in ticks collected by flagging, Rickettsia aeschlimannii was found only in specimens collected from dogs, while Ehrlichia sp., Coxiella burnetii, Hepatozoon canis and Leishmania infantum were recorded in ticks collected by flagging and from dogs. Out of 226 specimens of R. turanicus, 124 were collected by flagging, while additional 33 from eight dogs, 64 from seven southern white-breasted hedgehogs (Erinaceus concolor), two from a European badger (Meles meles) and one from a Greek tortoise (Tes-tudo graeca). Out of 65 R. sanguineus s.l. pools 17 (26.2%) had pathogens, while seven of them were positive for one pathogen, and 10 for two pathogens. In 43 R. turanicus pools, R. aeschlimannii R. africae, Rickettsia barbariae, R. massiliae, Anaplasma sp., Ehrlichia sp. and C. burnetii, as well as Babesia microti, B. vogeli, Hepatozoon felis, and L. infantum was detected, while Listeria monocytogenes, Bartonella sp. and Toxoplasma gondii were negative in all R. sanguineus s.l. and R. turanicus pools examined. In conclusion, Babesia microti is reported for the first time in Israel, R. africae, R. aeschlimannii, C. burnetii and L. infantum are reported for the first time in R. sanguineus s.l. and R. turanicus, while H. felis is reported for the first time from R. turanicus in the country
