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PubMed Journals Articles About "Global Cross Flow Membrane Market Research Report Forecast" RSS

05:38 EDT 19th September 2018 | BioPortfolio

Global Cross Flow Membrane Market Research Report Forecast PubMed articles on BioPortfolio. Our PubMed references draw on over 21 million records from the medical literature. Here you can see the latest Global Cross Flow Membrane Market Research Report Forecast articles that have been published worldwide.

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Showing "Global Cross Flow Membrane Market Research Report Forecast" PubMed Articles 1–25 of 49,000+

Application of membrane distillation for the treatment of anaerobic membrane bioreactor effluent: An especial attention to the operating conditions.

This study was carried out by applying the direct contact membrane distillation (DCMD) into the treatment of effluent from anaerobic membrane bioreactor. The treatment efficiency of DCMD was highly emphasized, which was expected to be improved through the optimization of operating conditions. Three operating conditions, including temperature difference, cross-flow velocity and membrane pore size, were considered. The relative flux (the ratio of actual flux to initial flux) increased from 0.50 to 0.98 as the...


Flow Topology Transition via Global Bifurcation in Thermally Driven Turbulence.

We report an experimental observation of a flow topology transition via global bifurcation in a turbulent Rayleigh-Bénard convection. This transition corresponds to a spontaneous symmetry breaking with the flow becomes more turbulent. Simultaneous measurements of the large-scale flow (LSF) structure and the heat transport show that the LSF bifurcates from a high heat transport efficiency quadrupole state to a less symmetric dipole state with a lower heat transport efficiency. In the transition zone, the sy...

The mathematics of market timing.

Market timing is an investment technique that tries to continuously switch investment into assets forecast to have better returns. What is the likelihood of having a successful market timing strategy? With an emphasis on modeling simplicity, I calculate the feasible set of market timing portfolios using index mutual fund data for perfectly timed (by hindsight) all or nothing quarterly switching between two asset classes, US stocks and bonds over the time period 1993-2017. The historical optimal timing path ...


Analysis of global stock index data during crisis period via complex network approach.

Considerable research has been done on the complex stock market, however, there is very little systematic work on the impact of crisis on global stock markets. For filling in these gaps, we propose a complex network method, which analyzes the effects of the 2008 global financial crisis on global main stock index from 2005 to 2010. Firstly, we construct three weighted networks. The physics-derived technique of minimum spanning tree is utilized to investigate the networks of three stages. Regional clustering ...

Recent Advances in Drug Development and Regulatory Science in China.

As the second largest pharmaceutical market with a great potential for future growth, China has drawn much attention from the global pharmaceutical community. With an increasing government investment in biomedical research, the domestic biopharmaceutical (biotechnological) companies in China are turning their attention to the development of innovative medicines and targeting the global market. To introduce innovative products to Chinese patients sooner, to improve the efficiency of its review and approval p...

Optimization of radioactive sources to achieve the highest precision in three-phase flow meters using Jaya algorithm.

Gamma ray source has very important role in precision of multi-phase flow metering. In this study, different combination of gamma ray sources ((Ba-Cs), (Ba-Co), (Am-Cs), (Am-Co), (Ba-Am) and (Co-Cs)) were investigated in order to optimize the three-phase flow meter. Three phases were water, oil and gas and the regime was considered annular. The required data was numerically generated using MCNP-X code which is a Monte-Carlo code. Indeed, the present study devotes to forecast the volume fractions in the annu...

Four release tests exhibit variable silver stability from nanoparticle-modified reverse osmosis membranes.

Modification of polyamide reverse osmosis (RO) membranes with silver nanoparticles (AgNP) may effectively control biofouling. While silver leaching tests are usually performed during membrane development, the lack of common testing protocols limits cross-comparison among different labs. We compare four release tests to quantify the release of dissolved and nanoparticulate silver from polyamide RO membranes prepared through in situ surface functionalization: (1) batch immersion, (2) dead-end filtration, (3) ...

Computational fluid dynamic (CFD) modeling of alternating tangential flow (ATF) filtration for perfusion cell culture.

Alternating tangential flow (ATF) filtration has been successfully adopted as a low shear cell separation device in many perfusion-based processes. The reverse flow per cycle is used to minimize fouling compared to tangential flow filtration (TFF). Currently, modeling of the ATF system is based on empirically derived formulas, leading to oversimplification of model parameters. In this study, an experimentally validated porous CFD model was used to predict localized fluid behavior and pressure profiles in th...

Pore Size-Tuned Graphene Oxide Framework as Ion-Selective and Protective Layers on Hydrocarbon Membranes for Vanadium Redox Flow Batteries.

The laminated structure of graphene oxide (GO) membranes provides exceptional ion separation properties, due to the regular interlayer spacing ( d) between laminate layers. However, a larger effective pore size of the laminate immersed in water (~11.1 Å) than the hydrated diameter of vanadium ions (> 6.0 Å) prevents its use in vanadium redox flow battery (VRFB). In this work, we report an ion-selective graphene oxide framework (GOF) whose d is tuned by cross-linking the GO nanosheets. Its effective pore s...

Improved sensitivity and limit-of-detection of lateral flow devices using spatial constrictions of the flow-path.

We report on the use of a laser-direct write (LDW) technique that allows the fabrication of lateral flow devices with enhanced sensitivity and limit of detection. This manufacturing technique comprises the dispensing of a liquid photopolymer at specific regions of a nitrocellulose membrane and its subsequent photopolymerisation to create impermeable walls inside the volume of the membrane. These polymerised structures are intentionally designed to create fluidic channels which are constricted over a specifi...

Cross-Linked Sulfonated Poly(arylene ether sulfone) Containing a Flexible and Hydrophobic Bishydroxy Perfluoropolyether Cross-Linker for High-Performance Proton Exchange Membrane.

Here we show a simple and effective cross-linking method to prepare high performance cross-linked sulfonated poly(arylene ether sulfone) (C-SPAES) membrane using bishydroxy perfluoropolyether (PFPE) as a cross-linker for fuel cell applications. C-SPAES membrane shows much improved physicochemical stability due to the cross-linked structure and reasonably high proton conductivity than non-crosslinked SPAES membrane due to the incorporation of flexible PFPE and the effective phase-separated morphology between...

Water transport and desalination through double-layer graphyne membranes.

Non-equilibrium molecular dynamics simulations of water-salt solutions driven through single and double-layer graphyne membranes by a pressure difference created by rigid pistons are carried out to determine the relative performance of the membranes as filters in a reverse osmosis desalination process. It is found that the flow rate of water through a graphyne-4 membrane is twice that of a graphyne-3 membrane for both single and double-layer membranes. Although the addition of a second layer to a single-lay...

Facilitation of yeast-lethal membrane protein production by detoxifying with GFP tagging.

Recombinant techniques for target protein production have been rapidly established and widely utilised in today's biological research. Nevertheless, methods for membrane protein production have yet to be developed, since membrane proteins generally tend to be expressed at low levels, easily aggregated, and/or even toxic to their host cells. Here we report that a GFP-tagging technique can be applied for the stable production of membrane proteins that are toxic to their host cells when overexpressed, paving t...

Improving α, ω-dodecanedioic acid productivity from n-dodecane and hydrolysate of Candida cells by membrane integrated repeated batch fermentation.

The aim of the present study is to develop an effective production process for α, ω-dodecanedioic acid (DC) biosynthesis using n-dodecane and hydrolysate of Candida cells as substrates by membrane integrated repeated batch fermentation. Cells and n-dodecane were simultaneously recycled during the filtration of fermentation broth (FB) with a 150 kDa ceramic membrane under a cross-flow velocity of 4 m/s and a trans-membrane pressure of 0.2 MPa, and it was also revealed that the cells in the broth coul...

Substandard and falsified medical products are a global public health threat. A pilot survey of awareness among physicians in Sweden.

Substandard and falsified medical products are a public health threat, primarily associated with low- and middle-income countries. Today, the phenomenon also exists in high-income countries. Increased Internet access has opened a global market. Self-diagnosis and self-prescription have boosted the market for unregulated websites with access to falsified medicines.

The latest progress in ecosystem service flow research methods.

Ecosystem service flow is the key point and difficulty of ecosystem services research, which is now at the initial stage and show a developing trend of quantity and spatialization. However, the term "ecosystem service flow" is ambiguous. In this paper, we presented two descriptions about the term, and two corresponding theories and methods: the transmission of a service from ecosystems to people and distributed ecosystem model, and the flow of benefits accruing to people as generated by stocks of ecosystem ...

Intermolecular interactions of polysaccharides in membrane fouling during microfiltration.

Membrane technology has been widely employed for seawater desalination, water and wastewater reclamation, while membrane fouling still remains as a major challenge. The polysaccharides in extracellular polymeric substances (EPS) have been recognized as an important foulant that causes serious membrane fouling, while the detailed structure of polysaccharides and the intermolecular interactions between them have not been adequately disclosed. In this study, two different polysaccharides and their mixtures wer...

The emerging marijuana retail environment: Key lessons learned from tobacco and alcohol retail research.

The emerging retail market for recreational marijuana use warrants research and surveillance as such markets are established in more US states. This research can be informed by the existing literature regarding tobacco and alcohol, which highlights the impact of spatial access to tobacco and alcohol retailers and exposure to tobacco and alcohol marketing on smoking and drinking among youth and young adults. Prior research indicates that tobacco and alcohol retailers, as well as medical marijuana dispensarie...

Quantification of blood flow in the superior ophthalmic vein using phase contrast magnetic resonance imaging.

Phase contrast magnetic resonance imaging (PC MRI), a validated, non-invasive technique for measuring intracranial blood and cerebrospinal flows, has been recently applied to studies of blood flow of the ophthalmic artery (OA). This study evaluated PC-MRI's ability to quantify blood flow in the superior ophthalmic vein (SOV). We analyzed with 3 T PC MRI the blood flow in the SOV in 11 healthy subjects and, for comparison purpose, in the OA. Segmentation software was used to analyze the PC images and qua...

Recognition and management of acute kidney injury in children: The ISN 0by25 Global Snapshot study.

In low and middle-income countries, reliable data on the epidemiology of childhood acute kidney injury (AKI) is lacking. The Global Snapshot, conducted by the ISN "0by25" AKI initiative, was a world-wide cross-sectional, observational study to evaluate AKI in hospitalized patients. Here we report the pediatric results of this study.

Flow cytometry for receptor analysis from ex-vivo brain tissue in adult rat.

Flow cytometry allows single-cell analysis of peripheral biological samples and is useful in many fields of research and clinical applications, mainly in hematology, immunology, and oncology. In the neurosciences, the flow cytometry separation method was first applied to stem cell extraction from healthy or cerebral tumour tissue and was more recently tested in order to phenotype brain cells, hippocampal neurogenesis, and to detect prion proteins. However, it remains sparsely applied in quantifying membrane...

Cerebral blood flow velocity and autoregulation in paediatric patients following a global hypoxic-ischaemic insult.

To describe the cerebral blood flow velocity pattern and investigate cerebral autoregulation using transcranial Doppler ultrasonography (TCD) following a global hypoxic-ischaemic (HI) event in children.

Effects of market type and time of purchase on oxidative status and descriptive off-odors and off-flavors of beef in Vietnam.

The objective of the current study was to determine the effects of market type (super market - SM, indoor market - IM, open market - OM) and sampling time (at the opening - T0 and 4 h after the opening - T4) on antioxidant capacity, lipid oxidation, and descriptive sensory attributes of beef in Vietnam. Values of FC and TEAC were greater in OM beef than IM and SM (P 

The social issue in the BRICS Project.

BRICS, the acronym for Brazil, Russia, India, China and South Africa, is the first multilateral group created and run by non-western developed countries. The group aims to influence world geopolitics and market based on the right of developing and emerging countries to participate equitably in development. The social issue lies at the core of the group's justifications to achieve its goals. In this regard, this paper aims to analyze how the social issue has been addressed by BRICS. The methodology was based...

The contributions of the actin machinery to endocytic membrane bending and vesicle formation.

Branched and cross-linked actin networks mediate cellular processes that move and shape membranes. To understand how actin contributes during the different stages of endocytic membrane reshaping, we analyzed deletion mutants of yeast actin network components using a hybrid imaging approach that combines live imaging with correlative microscopy. We could thus temporally dissect the effects of different actin network perturbations, revealing distinct stages of actin-based membrane reshaping. Our data show tha...


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