Separation effectiveness of ideal ion exchange membranes: Application of the Gibbs-Donnan theory. by Jacek Waniewski, Leszek Pstras, Mauro Pietribiasi

“…Here, we apply the principles of mass balance, charge neutrality, and equality of electrochemical potentials in the state of thermodynamic equilibrium to provide a simple method for estimating the Gibbs-Donnan factors and the equilibrium concentrations of permeating ions in two compartments separated by an ideal IEM, i.e. an IEM that is not permeable to co-ions. …”
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Monitoring and Modelling the Trends of Primary and Secondary Air Pollution Precursors: The Case of the State of Kuwait by S. M. Al-Salem, A. R. Khan

“…Two case studies that link recent data with models associated with industrial sectors are also demonstrated, focusing mainly on chemical mass balance (CMB) and Gaussian line source modelling. …”
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Absolute calibration methodology for non-uniform uranium and matrix distributions in large barrels of uranium-bearing solid waste by K. M. El-Kourghly

“…Even in the case of very small quantities of NMs, accounting for and analyzing such traces can provide insights into the mass balance of NMs and/or state activities, ensuring consistency in state declarations. …”
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Investigating the past, present and future responses of Shallap and Zongo Glaciers, Tropical Andes, to the El Niño Southern Oscillation by Alasdair Richardson, Rachel Carr, Simon Cook

“…Both glaciers retreated and experienced increasingly negative mass balance between the 1990s and the 2010s and responded strongly and rapidly to contemporary ENSO forcing, although this relationship evolved over time. …”
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Characterization and Uncertainty Assessment of a Certified Reference Material of Chloramphenicol in Methanol (GBW(E)082557) by Mengrui Yang, Min Wang, Jian Zhou, Yinqing Song, Tongtong Wang

“…Prior to preparation of CRM candidate of chloramphenicol in methanol with a concentration of 100 mg/L, two independent methods including mass balance (MB) and quantitative nuclear magnetic resonance (qNMR) were employed to precisely measure the mass fraction of pure chloramphenicol materials. …”
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On the factors and the degree of their effect on subglacial melt and changes in the state of Antarctic subglacial lakes by Alina Boronina, Sergey Popov, Gang Qiao

“…Five factors determining the nature of subglacial processes have been studied: ice thickness, snow-firn thickness, surface mass balance, air temperature, and geothermal heat flux. …”
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Case studies of different types of precipitation at Ny-Ålesund, Arctic by Lekhraj Saini, Saurabh Das, Nuncio Murukesh

“…Abstract Arctic precipitation plays a crucial role in shaping the surface mass balance of Arctic sea ice and has wide-ranging impacts on local climate, ecosystems, and global sea level dynamics. …”
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Terminus thinning drives recent acceleration of a Greenlandic lake-terminating outlet glacier by Ed Holt, Peter Nienow, Encarni Medina-Lopez

“…In recent decades, the number and size of Greenlandic ice-marginal lakes has increased, highlighting the need to further understand these lake-terminating ice-margins as their influence on ice sheet mass balance increases. Here, time series of satellite-derived observations of ice velocity, surface elevation, and terminus position were generated at a lake-terminating outlet glacier, Isortuarsuup Sermia, and the nearby land-terminating Kangaasarsuup Sermia in south-west Greenland. …”
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Residual Capability of Alkali Binding by Hydrated Pozzolanic Cements in Long-Service Concrete Structures by Mario Berra, Teresa Mangialardi, Antonio Evangelista Paolini

“…The developed procedure consisted of accelerated curing of cement paste specimens (150 days at 60°C and 100% RH), subsequent leaching tests at 60°C for 30 days by using deionized water or basic solutions (NaOH or KOH at different concentrations) as leaching media, and correlation of the leaching test results with a simple mass balance equation for sodium and potassium ions. …”
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Calculation of Theoretical and Empirical Nutrient N Critical Loads in the Mixed Conifer Ecosystems of Southern California by Joan Breiner, Benjamin S. Gimeno, Mark Fenn

“…Similarly, the highest theoretical CL for nutrient N calculated using the simple mass balance steady state model (estimates ranging from 1.4–8.8 kg N/ha/year) was approximately two times lower than the empirical observations. …”
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Antarctic 20th Century Accumulation Changes Based on Regional Climate Model Simulations by Klaus Dethloff, Ksenia Glushak, Annette Rinke, Dörthe Handorf

“…Over central Antarctica the prevailing anticyclone causes a strengthening of polar desertification connected with a reduced surface mass balance in the northern part of East Antarctica.…”
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Effect of the Boron Powder on Surface AISI W2 Steel: Experiments and Modelling by Marco Antonio Doñu Ruiz, David Sánchez Huitron, Ernesto David Garcia Bustos, Víctor Jorge Cortés Suárez, Noé López Perrusquia

“…A mathematical model of the growth kinetics of the single layer was proposed and boron diffusion coefficient was determined by mass balance equation. The morphology of Fe2B layer was smooth and boron activation energy in W2 steel was estimated as 187.696 kJ·mol−1. …”
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Analysis of Thermal Properties on Backward Feed Multieffect Distillation Dealing with High-Salinity Wastewater by Jianliang Xue, Qinqin Cui, Jie Ming, Yu Bai, Lin Li

“…A mathematical model, based on the energy and mass balance, is developed to (i) evaluate the influences of variations in key parameters (effect numbers, evaporation temperature in last effect, and feed salinity) on steam consumption, gained output ratio (GOR), and total heat transfer areas of MED and (ii) compare two operation modes (backward feed (BF) and forward feed (FF) systems). …”
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New glacier thickness and bed topography maps for Svalbard by W. van Pelt, T. Frank

“…Using remotely sensed observations of surface height, ice velocity, rate of surface elevation change, and glacier boundaries in combination with a modelled mass balance product, we apply an inverse method that leverages state-of-the-art ice flow models to obtain the shape of the glacier bed. …”
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Water loss in transit in an intermittent river in brazilian semi-arid by Cristian Epifanio Toledo, Emanuelly de Moura Silva Almeida, Alexandre Vicente Lopes Neto, Thályta Lharyssa Gonçalves Rodrigues Gonçalves Rodrigues Silva, Filipe Augusto Rodrigues Santos

“…The methodology used was based on the equation of continuity and mass balance along the study river. A modified Araújo and Ribeiro equation showed strong applicability to loss-in-transit generation, with a mean loss in transit of 3.6% km-1, and a Nash and Sutcliffe Efficiency value of 0.29. …”
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Future large-scale atmospheric circulation changes and Greenland precipitation by Baojuan Huai, Minghu Ding, Michiel R. van den Broeke, Carleen H. Reijmer, Brice Noël, Weijun Sun, Yetang Wang

“…This implies that the IL location will have a strong influence on precipitation changes over southeast Greenland in the future, impacting projections of Greenland ice sheet surface mass balance.…”
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Receptor Model Source Apportionment of Nonmethane Hydrocarbons in Mexico City by V. Mugica, J. Watson, E. Vega, E. Reyes, M.E. Ruiz, J. Chow

“…Food cooking source profiles were also determined for chemical mass balance receptor model application. Initial source contribution estimates were carried out to determine the adequate combination of source profiles and fitting species. …”
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Significance of Nonsimilar Numerical Simulations in Forced Convection from Stretching Cylinder Subjected to External Magnetized Flow of Sisko Fluid by Jifeng Cui, Umer Farooq, Ahmed Jan, Murtada K. Elbashir, Waseem Asghar Khan, Mogtaba Mohammed, Ziyad Ali Alhussain, Jamshaid Ul Rahman

“…The governing equations for axisymmetric flow that include the mass balance, x-momentum, and heat equation are modeled through conservation laws. …”
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Validating ensemble historical simulations of Upernavik Isstrøm (1985–2019) using observations of surface velocity and elevation by Eliot Jager, Fabien Gillet-Chaulet, Jérémie Mouginot, Romain Millan

“…Using a variance-based sensitivity analysis, we show that uncertainties in the friction law and the ice-flow law have a greater impact on the model results than surface mass balance and initial surface elevation.…”
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Source Apportionment of PM10 by Positive Matrix Factorization in Urban Area of Mumbai, India by Indrani Gupta, Abhaysinh Salunkhe, Rakesh Kumar

“…During last few years, receptor models such as Chemical Mass Balance, Positive Matrix Factorization (PMF), PCA–APCS and UNMIX have been used to provide solutions to the source identification and contributions which are accepted for developing effective and efficient air quality management plans. …”
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