Search Results - "Alper, E."

Increasing large scale windstorm damage in Western, Central and Northern European forests, 1951–2010 by Gregow, H., Laaksonen, A., Alper, M. E.

“…Using reports of forest losses caused directly by large scale windstorms (or primary damage, PD) from the European forest institute database (comprising 276 PD…”
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An unusual white dwarf star may be a surviving remnant of a subluminous Type Ia supernova by Vennes, S., Nemeth, P., Kawka, A., Thorstensen, J. R., Khalack, V., Ferrario, L., Alper, E. H.

“…Subluminous Type Ia supernovae, such as the Type Iax–class prototype SN 2002cx, are described by a variety of models such as the failed detonation and partial…”
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An alternative polynomial-sized formulation and an optimization based heuristic for the reviewer assignment problem by Yeşilçimen, Ali, Yıldırım, E. Alper

“…•We present an alternative representation of the objective function of the formulation of Cook et al. (2005).•Using the alternative representation, we propose…”
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THE YOUNG AND BRIGHT TYPE IA SUPERNOVA ASASSN-14lp: DISCOVERY, EARLY-TIME OBSERVATIONS, FIRST-LIGHT TIME, DISTANCE TO NGC 4666, AND PROGENITOR CONSTRAINTS by Shappee, B. J., Piro, A. L., Holoien, T. W.-S., Prieto, J. L., Contreras, C., Itagaki, K., Burns, C. R., Kochanek, C. S., Stanek, K. Z., Alper, E., Basu, U., Beacom, J. F., Bersier, D., Brimacombe, J., Conseil, E., Danilet, A. B., Dong, Subo, Falco, E., Grupe, D., Hsiao, E. Y., Kiyota, S., Morrell, N., Nicolas, J., Phillips, M. M., Pojmanski, G., Simonian, G., Stritzinger, M., Szczygie, D. M., Taddia, F., Thompson, T. A., Thorstensen, J., Wagner, M. R., Wo niak, P. R.

“…ABSTRACT On 2014 December 9.61, the All-sky Automated Survey for SuperNovae (ASAS-SN or "Assassin") discovered ASASSN-14lp just ∼2 days after first light using…”
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Exact and heuristic approaches based on noninterfering transmissions for joint gateway selection, time slot allocation, routing and power control for wireless mesh networks by Gokbayrak, Kagan, Yıldırım, E. Alper

“…•Tactical and operational problems of wireless mesh networks are jointly considered.•Mixed integer linear programming formulations and a valid inequality are…”
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Inner approximations of completely positive reformulations of mixed binary quadratic programs: a unified analysis by Yildirim, E Alper

“…Every quadratic programming problem with a mix of continuous and binary variables can be equivalently reformulated as a completely positive optimization…”
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Sensitive Determination of Selected Drug Active Compounds in Wastewater Matrices by LC-QTOF-MS/MS after Vortex Assisted Binary Solvents Dispersive Liquid-Liquid Microextraction by Koçoğlu, E. Seda, Sözüdoğru, Onur, Komesli, Okan T., Yılmaz, Alper E., Er, Elif Öztürk, Bakırdere, Sezgin

“…Binary solvent dispersive liquid-liquid microextraction (BS-DLLME) was combined with liquid chromatography quadrupole time-of-flight tandem mass spectrometry…”
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An exact parallel objective space decomposition algorithm for solving multi-objective integer programming problems by Turgut, Ozgu, Dalkiran, Evrim, Murat, Alper E.

“…The set of all nondominated solutions for a multi-objective integer programming (MOIP) problem is finite if the feasible region is bounded, and it may contain…”
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An alternative perspective on copositive and convex relaxations of nonconvex quadratic programs by Yildirim, E. Alper

“…We study convex relaxations of nonconvex quadratic programs. We identify a family of so-called feasibility preserving convex relaxations, which includes the…”
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The effectiveness of a monetary incentive offer on survey response rates and response completeness in a longitudinal study by Yu, Shengchao, Alper, Howard E, Nguyen, Angela-Maithy, Brackbill, Robert M, Turner, Lennon, Walker, Deborah J, Maslow, Carey B, Zweig, Kimberly C

“…Achieving adequate response rates is an ongoing challenge for longitudinal studies. The World Trade Center Health Registry is a longitudinal health study that…”
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On Khachiyan's algorithm for the computation of minimum-volume enclosing ellipsoids by Todd, Michael J., Yıldırım, E. Alper

“…Given A ≔ { a 1 , … , a m } ⊂ R d whose affine hull is R d , we study the problems of computing an approximate rounding of the convex hull of A and an…”
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Comparison of prevalence and exposure-disease associations using self-report and hospitalization data among enrollees of the world trade center health registry by Alper, Howard E, Brite, Jennifer, Cone, James E, Brackbill, Robert M

“…Although many studies have investigated agreement between survey and hospitalization data for disease prevalence, it is unknown whether exposure-chronic…”
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Implementation of warm-start strategies in interior-point methods for linear programming in fixed dimension by John, Elizabeth, Yıldırım, E. Alper

“…We implement several warm-start strategies in interior-point methods for linear programming (LP). We study the situation in which both the original LP instance…”
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Global solutions of nonconvex standard quadratic programs via mixed integer linear programming reformulations by Gondzio, Jacek, Yıldırım, E. Alper

“…A standard quadratic program is an optimization problem that consists of minimizing a (nonconvex) quadratic form over the unit simplex. We focus on…”
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Joint gateway selection, transmission slot assignment, routing and power control for wireless mesh networks by Gokbayrak, Kagan, Yıldırım, E. Alper

“…Wireless mesh networks (WMNs) provide cost effective solutions for setting up a communications network over a certain geographic area. In this paper, we study…”
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On the accuracy of uniform polyhedral approximations of the copositive cone by Alper Yildirim, E

“…We consider linear optimization problems over the cone of copositive matrices. Such conic optimization problems, called copositive programs, arise from the…”
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Efficient synthesis of pentakis- and tris(pyridine) ligands by Ünal, E. Alper, Wiedemann, Dennis, Seiffert, Josef, Boyd, John P., Grohmann, Andreas

“…A variety of substituted tris(pyridyl) frameworks, as well as a pentakis(pyridine) system, are conveniently accessible in a one-pot synthesis, which consists…”
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On standard quadratic programs with exact and inexact doubly nonnegative relaxations by Görkem, Gökmen Y, Alper, Yıldırım E

“…The problem of minimizing a (nonconvex) quadratic form over the unit simplex, referred to as a standard quadratic program, admits an exact convex conic…”
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Kinetics of CO2 Absorption by a Blended Aqueous Amine Solution by Ume, C. S., Ozturk, M. C., Alper, E.

“…The reaction rates of CO2 in an aqueous blend of amine solutions of N‐(2‐hydroxethyl)piperazine (N‐HEPZ) and 2‐amino‐2‐hydroxymethyl‐1,3‐propanediol (AHPD) at…”
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Bacterial species and total bacterial load in the distal oesophagus in patients with and without clinical gastric reflux by Kayar Dogan, E., Abaci Gunyar, O., Topal, F., Alper, E., Ekinci, N.

“…Aims The purpose of this study is to compare distal oesophagus of persons with and without gastric reflux in terms of bacterial load and presence of certain…”
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