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Topic Review
Forward Osmosis
Forward osmosis (FO), the most common osmotically driven membrane process, stands out as the most promising alternative for RO processes due to its inherently low fouling tendency, easier fouling removal, and energy efficiency when compared to pressure-driven–type membrane processes.
  • 1.6K
  • 21 Jan 2021
Topic Review
Forward Osmosis Development
Forward osmosis (FO) has attracted special attention in water and wastewater treatment due to its role in addressing the challenges of water scarcity and contamination. The presence of emerging contaminants in water sources raises concerns regarding their environmental and public health impacts. Conventional wastewater treatment methods cannot effectively remove these contaminants; thus, innovative approaches are required. FO membranes offer a promising solution for wastewater treatment and removal of the contaminants in wastewater.
  • 235
  • 20 Jul 2023
Topic Review
Fossil Free Future for Track Work Machinery
Fossil free future for track work machinery indicates the possibility of achieving zero direct emissions during maintenance and construction work in railways by switching to alternative drives. Current railway track work machinery is mainly operated with diesel fuel. As a result, track maintenance of Austrian Federal Railways (OeBB) amounts to nearly 9000 t CO2 equivalent per year according to calculations from Graz University of Technology. OeBB’s total length of railway lines only accounts for 0.56% of the world’s length of lines. This indicates huge potential for mitigating greenhouse gas emissions considering the need for track maintenance worldwide. Environmental concerns have led to the introduction of alternative drives in the transport sector.
  • 904
  • 11 Nov 2021
Topic Review
Fostering Sustainable LNG Bunkering Operations
Liquefied natural gas (LNG) is a liquid form of natural gas, predominantly composed of methane, that has emerged as a promising alternative to traditional hydrocarbon fuels in the maritime transportation sector due to its lower greenhouse gas (GHG) emissions.
  • 276
  • 06 May 2023
Topic Review
Fouling Prevention in Membranes by Radiation-Induced Graft Copolymerization
The application of membrane processes in various fields has now undergone accelerated developments, despite the presence of some hurdles impacting the process efficiency. Fouling is arguably the main hindrance for a wider implementation of polymeric membranes, particularly in pressure-driven membrane processes, causing higher costs of energy, operation, and maintenance. Radiation induced graft copolymerization (RIGC) is a powerful versatile technique for covalently imparting selected chemical functionalities to membranes’ surfaces, providing a potential solution to fouling problems. 
  • 923
  • 17 Jan 2022
Topic Review
Foundation (Engineering)
A foundation is the element of a structural engineering which connects it to the ground, and transfers loads from the structure to the ground. Foundations are generally considered either shallow or deep. Foundation engineering is the application of soil mechanics and rock mechanics (Geotechnical engineering) in the design of foundation elements of structures.
  • 1.3K
  • 08 Nov 2022
Topic Review
Foundation Fieldbus
Other than 4-20 mA analogue standard which is the most popular analogue standard in the field of industrial automation, smart transmitters based on wired digital communication protocols such as Foundation Fieldbus might be a good alternative to consider for the purpose of improved performance and increased reliability in measurement and control process. 
  • 598
  • 13 Oct 2022
Topic Review
Fountain (Duchamp)
Fountain is a readymade sculpture produced by Marcel Duchamp in 1917: a porcelain urinal signed "R.Mutt". In April 1917, an ordinary piece of plumbing chosen by Duchamp was rotated 90 degrees on its axis and submitted for an exhibition of the Society of Independent Artists, the first annual exhibition by the Society to be staged at The Grand Central Palace in New York. Fountain was not rejected by the committee but it was removed from the show area, since Society rules stated that all works would be accepted from artists who paid the fee. Following that removal, Fountain was photographed at Alfred Stieglitz's studio, and the photo published in The Blind Man. The original has been lost. The work is regarded by art historians and theorists of the avant-garde as a major landmark in 20th-century art. Sixteen replicas were commissioned by Duchamp in the 1950s and 1960s and made to his approval. Some scholars have suggested that the original work was by a female artist rather than Duchamp, but this is a minority view among historians.
  • 1.8K
  • 28 Nov 2022
Topic Review
Four Effects of High-Entropy Alloys
As a new type of alloy with high hardness, high heat resistance, strong corrosion resistance, high wear resistance and fatigue resistance, high-entropy alloys are different from any existing traditional alloy. As a new alloy system, high-entropy alloys have important research value and broad application prospects. Therefore, the design, preparation and application of high-entropy alloys have become an important direction for the development of new materials.
  • 764
  • 17 Nov 2023
Topic Review
Fourier Lightfield Microscope
Fourier lightfield microscopy (FLMic) is a technique aimed to capture and process 3D information of microscopic samples. Due to its optical design, FLMic has the inherent capacity of capturing a collection of orthographic perspectives of samples in a single shot. Consequently, FLMic is especially suited for capturing and processing 3D images of dynamic processes, being potentially addressed for real-time applications in both life and material sciences.
  • 1.4K
  • 10 Mar 2022
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