Search for excited spin-3/2 neutrinos at LHeC

We study the potential of the next $ep$ collider, namely LHeC, with two options $\sqrt{s}=1.3$ TeV $\sqrt{s}=1.98$ TeV, to search for excited spin-1/2 and spin-3/2 neutrinos. We calculate the single production cross section of excited spin-1/2 and spin-3/2 neutrinos according to their effective currents describing their interactions between gauge bosons and SM leptons. We choose the $\nu^{\star}\rightarrow eW$ decay mode of excited neutrinos and $W\rightarrow jj$ decay mode of $W$-boson for the analysis. We put some kinematical cuts for the final state detectable particles and plot the invariant mass distributions for signal and the corresponding backgrounds. In order to obtain accessible limits for excited neutrino couplings, we show the $f-f^{\prime}$ and $c_{iV}-c_{iA}$ contour plots for excited spin-1/2 and excited spin-3/2 neutrinos, respectively.Comment: 15 pages, 8 figures, 5 Table

The extended Srivastava’s triple hypergeometric functions and their integral representations

We introduce the extended Srivastava’s triple hypergeometric functions by using an extension of beta function. Furthermore, some integral representations are given for these new functions. © 2016 All rights reserved

Empirical Analysis of Pre-Paid and Post-Paid Mobile Subscription in Turkey

Bu çalışmada, Türkiye’de mobil telefon aboneliğinde faturalı ve faturasız hat tercihinin belirleyicileri incelenmektedir. Abone karakteristikleri ile abonelik türü (faturasız – faturalı hat) tercihi arasındaki ilişki ikili lojistik regresyon kullanılarak analiz edilmektedir. Analizlerde kullanılan veriler 2009 üçüncü çeyrekte yapılan anket sonucunda elde edilmiştir. Sonuçlar abonelik tercihi ile kullanılan bağımsız değişkenler arasında anlamlı bir ilişki olduğunu göstermektedir. Analizler neticesinde ankete katılan bireylerin tercihleri üzerinde bu bireylerle aynı hanedeki diğer bireylerin tercihlerinin önemli etkileri olduğu bulunmuştur. Ayrıca, bulunan sonuçlar, mobil telefonlarını genellikle konuşma ve internete girmek için kullanan abonelerin faturalı hat tercih etme olasılığının yüksek olduğunu gösterirken, faturasız hat tercih eden abonelerin ise mobil telefonlarını çoğunlukla kısa mesaj gönderme ve mobil telefon oyunları oynamak için kullanmaktadırlar.This paper investigates the determinants of pre-paid and post-paid mobile phone subscriptions in Turkey. The binary logit analysis is employed to explore the relationship between the subscribers’ characteristics and their subscription type i.e. pre-paid or post-paid. The data used in the analysis relies on a survey carried out during 2009-Q3. The results indicate that there is a statistically significant relationship between the subscription type choice and the dependent variables. It is found that the choices of the other members living in the respondents’ household have significant effect on the decisions of the subscribers. The results also show that the subscribers who use their phones mainly for mobile calls and for surfing on internet are more likely to have a post-paid subscription while the pre-paid users usually use their phones for short messages and for playing games on their mobile phones

Empirical Analysis of Pre-Paid and Post-Paid Mobile Subscription in Turkey

Bu çalışmada, Türkiye’de mobil telefon aboneliğinde faturalı ve faturasız hat tercihinin belirleyicileri incelenmektedir. Abone karakteristikleri ile abonelik türü (faturasız – faturalı hat) tercihi arasındaki ilişki ikili lojistik regresyon kullanılarak analiz edilmektedir. Analizlerde kullanılan veriler 2009 üçüncü çeyrekte yapılan anket sonucunda elde edilmiştir. Sonuçlar abonelik tercihi ile kullanılan bağımsız değişkenler arasında anlamlı bir ilişki olduğunu göstermektedir. Analizler neticesinde ankete katılan bireylerin tercihleri üzerinde bu bireylerle aynı hanedeki diğer bireylerin tercihlerinin önemli etkileri olduğu bulunmuştur. Ayrıca, bulunan sonuçlar, mobil telefonlarını genellikle konuşma ve internete girmek için kullanan abonelerin faturalı hat tercih etme olasılığının yüksek olduğunu gösterirken, faturasız hat tercih eden abonelerin ise mobil telefonlarını çoğunlukla kısa mesaj gönderme ve mobil telefon oyunları oynamak için kullanmaktadırlar.This paper investigates the determinants of pre-paid and post-paid mobile phone subscriptions in Turkey. The binary logit analysis is employed to explore the relationship between the subscribers’ characteristics and their subscription type i.e. pre-paid or post-paid. The data used in the analysis relies on a survey carried out during 2009-Q3. The results indicate that there is a statistically significant relationship between the subscription type choice and the dependent variables. It is found that the choices of the other members living in the respondents’ household have significant effect on the decisions of the subscribers. The results also show that the subscribers who use their phones mainly for mobile calls and for surfing on internet are more likely to have a post-paid subscription while the pre-paid users usually use their phones for short messages and for playing games on their mobile phones

Comparison of closed with open tracheal aspiration system

PubMe

Growth and Characterization of CuO Nanostructures on Si for the Fabrication of CuO/p-Si Schottky Diodes

CuO interlayers in the CuO/p-Si Schottky diodes were fabricated by using CBD and sol-gel methods. Deposited CuO layers were characterized by SEM and XRD techniques. From the SEM images, it was seen that the film grown by CBD method is denser than the film grown by sol-gel method. This result is compatible with XRD results which show that the crystallization in CBD method is higher than it is in sol-gel method. For the electrical investigations, current-voltage characteristics of the diodes have been studied at room temperature. Conventional I-V and Norde’s methods were used in order to determine the ideality factor, barrier height, and series resistance values. It was seen that the morphological and structural analysis are compatible with the results of electrical investigations

Contractual agreements for coordination and vendor-managed delivery under explicit transportation considerations

We consider the coordination problem between a vendor and a buyer operating under generalized replenishment costs that include fixed costs as well as stepwise freight costs. We study the stochastic demand, single-period setting where the buyer must decide on the order quantity to satisfy random demand for a single item with a short product life cycle. The full order for the cycle is placed before the cycle begins and no additional orders are accepted by the vendor. Due to the nonrecurring nature of the problem, the vendor's replenishment quantity is determined by the buyer's order quantity. Consequently, by using an appropriate pricing schedule to influence the buyer's ordering behavior, there is an opportunity for the vendor to achieve substantial savings from transportation expenses, which are represented in the generalized replenishment cost function. For the problem of interest, we prove that the vendor's expected profit is not increasing in buyer's order quantity. Therefore, unlike the earlier work in the area, it is not necessarily profitable for the vendor to encourage larger order quantities. Using this nontraditional result, we demonstrate that the concept of economies of scale may or may not work by identifying the cases where the vendor can increase his/her profits either by increasing or decreasing the buyer's order quantity. We prove useful properties of the expected profit functions in the centralized and decentralized models of the problem, and we utilize these properties to develop alternative incentive schemes for win-win solutions. Our analysis allows us to quantify the value of coordination and, hence, to identify additional opportunities for the vendor to improve his/her profits by potentially turning a nonprofitable transaction into a profitable one through the use of an appropriate tariff schedule or a vendor-managed delivery contract. We demonstrate that financial gain associated with these opportunities is truly tangible under a vendor-managed delivery arrangement that potentially improves the centralized solution. Although we take the viewpoint of supply chain coordination and our goal is to provide insights about the effect of transportation considerations on the channel coordination objective and contractual agreements, the paper also contributes to the literature by analyzing and developing efficient approaches for solving the centralized problem with stepwise freight costs in the single-period setting. © 2006 Wiley Periodicals, Inc

How supply chain coordination affects the environment: a carbon footprint perspective

Environmental responsibility has become an important part of doing business. Government regulations and customers’ increased awareness of environmental issues are pushing supply chain entities to reduce the negative influence of their operations on the environment. In today’s world, companies must assume joint responsibility with their suppliers for the environmental impact of their actions. In this paper, we study coordination between a buyer and a vendor under the existence of two emission regulation policies: cap-and-trade and tax. We investigate the impact of decentralized and centralized replenishment decisions on total carbon emissions. The buyer in this system faces a deterministic and constant demand rate for a single product in the infinite horizon. The vendor produces at a finite rate and makes deliveries to the buyer on a lot-for-lot basis. Both the buyer and the vendor aim to minimize their average annual costs resulting from replenishment set-ups and inventory holding. We provide decentralized and centralized models for the buyer and the vendor to determine their ordering/production lot sizes under each policy. We compare the solutions due to independent and joint decision-making both analytically and numerically. Finally, we arrive at coordination mechanisms for this system to increase its profitability. However, we show that even though such coordination mechanisms help the buyer and the vendor decrease their costs without violating emission regulations, the cost minimizing solution may result in increased carbon emission under certain circumstances. © 2015, Springer Science+Business Media New York

A cobalt arylphosphonate MOF – superior stability, sorption and magnetism

We report a novel metal-organic framework (MOF) based on a cobalt arylphosphonate, namely, [Co2(H4-MTPPA)]·3NMP·H2O (1·3NMP·H2O), which was prepared solvothermically from the tetrahedral linker tetraphenylmethane tetrakis-4-phosphonic acid (H8-MTPPA) and CoSO4·7H2O in N-methyl-2-pyrrolidone (NMP). Compound 1 has the highest porosity (BET surface area of 1034 m2 g−1) ever reported for a MOF based on an aryl phosphonic acid linker. The indigo blue crystals of 1·3NMP·H2O are composed of edge-shared eight-membered Co2P2O4 rings, and are thermally very stable up to 500 °C.TU Berlin, Open-Access-Mittel - 201