Results 121 to 130 of about 626,084 (352)

Area Speed Flow Relationships: Ring-Radial Aggregation Using SATURN [PDF]

open access: yes, 1995
This paper is one of a series of ITS working papers and technical notes describing the methodology and results of the EPSRC funded project "The definition of capacity in urban road networks : The role of area speed flow relationships".
Shepherd, S.P.
core  

Ion‐Selective Microporous Membranes via One‐Step Copolymerization Enable High‐Performance Redox Flow Batteries

open access: yesAdvanced Functional Materials, EarlyView.
A scalable one‐step copolymerization strategy is developed to produce low‐cost microporous ion exchange membranes that boost both the efficiency and lifespan of flow batteries. When combined with organic electrolytes in aqueous systems, these membranes enable safe and cheap flow battery energy storage, supporting the widespread integration of renewable
Jiaye Liu   +7 more
wiley   +1 more source

RATE TRANSIENT ANALYSIS FOR HOMOGENEOUS AND HETEROGENEOUS GAS RESERVOIRS USING THE TDS TECHNIQUE ANÁLISIS DE PRUEBAS DE CAUDAL VARIABLE PARA YACIMIENTOS DE GAS HOMOGÉNEOS Y HETEROGÉNEOS MEDIANTE LA TÉCNICA TDS

open access: yesCT&F Ciencia, Tecnología & Futuro, 2008
In this study pressure test analysis in wells flowing under constant wellbore flowing pressure for homogeneous and naturally fractured gas reservoir using the TDS technique is introduced.
Freddy- Humberto Escobar   +2 more
doaj  

Thermal Modeling in Polymer Extrusion [PDF]

open access: yes, 2000
In this paper we consider thermal effects of polymer flows through a cylindrical die. First, we derive a model for the oscillatory behavior of polymer flow in an extruder given a functional relation between the pressure and flow rate. A simple isothermal
Berg, J.B.   +4 more
core  

Miniature Nanomesh Mechano‐Acoustic Sensor with Wide Linear Dynamic Range, Broad Bandwidth, and Flat Frequency Response

open access: yesAdvanced Functional Materials, EarlyView.
A miniaturized mechano‐acoustic sensor is developed using an electrospun PVDF nanomesh as the diaphragm in a capacitive sensor structure. Unlike conventional nanomesh‐based sensors, it achieves high linear sensitivity, a broad and flat frequency response, and a compact form factor.
Jeng‐Hun Lee   +8 more
wiley   +1 more source

PRESSURE AND PRESSURE DERIVATIVE ANALYSIS FOR INJECTION TESTS WITH VARIABLE TEMPERATURE WITHOUT TYPE-CURVE MATCHING ANÁLISIS DE PRESIÓN Y DERIVADA DE PRESIÓN EN PRUEBAS DE INYECCIÓN CON TEMPERATURA VARIABLE SIN EMPLEAR CURVAS TIPO

open access: yesCT&F Ciencia, Tecnología & Futuro, 2008
The analysis of injection tests under nonisothermic conditions is important for the accurate estimation of the reservoir permeability and the well's skin factor; since previously an isothermical system was assumed without taking into account a moving ...
Freddy-Humberto Escobar   +2 more
doaj  

Functional Materials for Environmental Energy Harvesting in Smart Agriculture via Triboelectric Nanogenerators

open access: yesAdvanced Functional Materials, EarlyView.
This review explores functional and responsive materials for triboelectric nanogenerators (TENGs) in sustainable smart agriculture. It examines how particulate contamination and dirt affect charge transfer and efficiency. Environmental challenges and strategies to enhance durability and responsiveness are outlined, including active functional layers ...
Rafael R. A. Silva   +9 more
wiley   +1 more source

PRESSURE AND PRESSURE DERIVATE ANALYSIS FOR A WELL IN A RADIAL COMPOSITE RESERVOIR WITH A NON-NEWTONIAN/NEWTONIAN INTERFACE

open access: yesCT&F Ciencia, Tecnología & Futuro, 2010
In many activities of the oil industry, engineers have to deal with completion and stimulation treatment fluids such as polymer solutions and some heavy crude oils which obey a non-Newtonian power-law behavior.
Freddy-Humberto Escobar   +2 more
doaj  

Home - About - Disclaimer - Privacy