Natural organic matter (NOM) in drinking water supplies can provide precursors for disinfectant byproducts, molecules that impact taste and odors, compounds that influence the efficacy of treatment, and other compounds that are a source of energy and carbon for the regrowth of microorganisms during distribution. NOM, measured as dissolved organic carbon (DOC), was monitored daily in the White R...

We propose a multi-objective optimization algorithm for optimal energy storage by residential customers using Li-Ion batteries. Our goal is to quantify the benefits of optimal energy storage to solar customers whose electricity bills consist of both Time of Use charges ($/kWh, with different rates for on-peak and off-peak hours) and demand charges ($/kW, proportional to the peak rate of consump...

Study presented in this paper is focused on comparison and statistical assessment of differences between the selected Level 2 products satellite mission Gravity Recovery Climate Experiment (GRACE). Global monthly gravity field models terms spherical harmonic coefficients produced by three institutes GRACE Science Data System are compared with partially independent MASCON global model. Detailed ...

The article proposes an approach to forecasting mean temperature and total precipitation for the upcoming month, based on study of regularities influence statistical characteristics previous periods them. Among predictors, along with basic characteristics, we use fractality index which is indicator randomness/ determinism climate series. Within framework this approach, have developed models dif...

Are couples who have been together longer more likely to stick together in the face of adversity? This paper uses monthly data from the Survey of Income and Program Participation to investigate the impact on relationship duration of labor market shocks such as layoff, discharge for cause, and disability. Using a Cox proportional hazard model, I show that generally these labor market shocks sign...

The purpose of this study was to evaluate the relationship between economic activity and the incidence of high-energy orthopedic trauma. California's Office of Statewide Health Planning and Development patient discharge database was queried to identify monthly orthopedic trauma incidence from 1995 to 2010. Patient inclusion required 1 diagnosis code and 1 associated procedural code for fracture...

Definitions. a) A matrix is called a complex matrix if all its entries are complex numbers. (In particular, any vector in C is considered a n× 1 complex matrix.) b) For any complex matrix A, we denote the matrix A T by A∗. c) Let U2 (C) be the group of all unitary 2× 2 complex matrices. In other words, let U2 (C) = { U ∈ GL2 (C) | U∗ = U−1 } . d) A complex matrix A is called Hermitian if it sat...


 Most of Nepal's river basins have poor hydro- meteorological databases, with several being ungauged. Thus, hydrological parameters need to be estimated using different types computation methods. The primary goal this study is identify the most accurate method for calculating peak flood and long-term mean monthly flow among commonly used methods in Nepal. We compared calculated various fo...