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Now showing items 4031-4040 of 4274
Off-design performance analysis of combined CSP power and direct oxy-combustion supercritical carbon dioxide cycles
(
Elsevier
, 2021 , Article)
The solar power tower (SPT) has the potential to achieve high efficiency and large-scale power production due to its high achievable temperatures. However, thermal energy storage (TES) is required to solve the intermittency ...
Repositioning of the global epicentre of non-optimal cholesterol
(
Nature Research
, 2020 , Article)
High blood cholesterol is typically considered a feature of wealthy western countries1,2. However, dietary and behavioural determinants of blood cholesterol are changing rapidly throughout the world3 and countries are using ...
A protocol for the detection of genetic markers in saliva by polymerase chain reaction without a nucleic acid purifi cation step: Examples of SARS-CoV-2 and GAPDH markers
(
Danylo Halytskyi Lviv National Medical University
, 2021 , Article)
Introduction. Polymerase chain reaction (PCR)-based diagnostic tests use purifi ed nucleic acids (NAs) from clinical samples. The NAs purifi cation step adds time, cost, and aff ects the quality of testing. The objective ...
The strength of association between psychological factors and clinical outcome in tendinopathy: A systematic review
(
Public Library of Science
, 2020 , Article Review)
Objective Tendinopathy is often a disabling, and persistent musculoskeletal disorder. Psychological factors appear to play a role in the perpetuation of symptoms and influence recovery in musculoskeletal pain. To date, the ...
Fractional-order controllers for stick-slip vibration mitigation in oil well drill-strings
(
SAGE
, 2021 , Article)
Drillstring–borehole interaction can produce severely damaging vibrations. An example is stick–slip vibration, which negatively affects drilling performance, tool integrity and completion time, and costs. Attempts to ...
The COVID-19 pandemic: An opportunity to make mental health a higher public health priority
(
Cambridge University Press
, 2021 , Article Review)
Coronavirus disease 2019 (COVID-19) was first recognised in December 2019. The subsequent pandemic has caused 4.3 million deaths and affected the lives of billions. It has increased psychosocial risk factors for mental ...
Application of Tools of Quality Function Deployment and Modified Balanced Scorecard for Optimal Allocation of Pavement Management Resources
(
Institute of Electrical and Electronics Engineers Inc. (IEEE)
, 2020 , Article)
Pavement management is a set of tools used to evaluate and maintain pavements so that the pavements can be used safely and effectively over a certain period. Many traditional methods were and are still being used by entities ...
Optimal piezoelectric shunt dampers for non-deterministic substructure vibration control: estimation and parametric investigation
(
Nature Research
, 2021 , Article)
Piezoelectric (PZT) shunt damping is an effective method to dissipate energy from a vibrating structure; however, most of the applications focus on targeting specific modes for structures vibrating at low-frequency range, ...
The COVID-19 pandemic and healthcare systems in Africa: A scoping review of preparedness, impact and response
(
BMJ Publishing Group
, 2021 , Article)
Background The COVID-19 pandemic has overwhelmed health systems in both developed and developing nations alike. Africa has one of the weakest health systems globally, but there is limited evidence on how the region is ...
Modified zeolite/polysulfone mixed matrix membrane for enhanced CO2/CH4 separation
(
MDPI AG
, 2021 , Article)
In recent years, mixed matrix membranes (MMMs) have received worldwide attention for their potential to offer superior gas permeation and separation performance involving CO2 and CH4. However, fabricating defect-free MMMs ...