Current Power News and Events

Current Power News and Events, Power News Articles.
Sort By: Most Relevant | Most Viewed
Page 1 of 25 | 1000 Results
Low-level jets create winds of change for turbines
Global wind power capacity has increased more than fivefold over the past decade, leading to larger turbines, but low-level jets are one cause for concern. The effects of these strong, energetic wind flows depend on how high the wind flows are in relation to the turbines. In the Journal of Renewable and Sustainable Energy, researchers considered three different scenarios in which the LLJs were above, below, and in the middle of the turbine rotors. (2021-02-23)

Credit card-sized soft pumps power wearable artificial muscles
Robotic clothing that is entirely soft and could help people to move more easily is a step closer to reality thanks to the development of a new flexible and lightweight power system for soft robotics. (2021-02-17)

Switching to firm contracts may prevent natural gas fuel shortages at US power plants
New research now indicates that these fuel shortages are not due to failures of pipelines and that in certain areas of the country a change in how gas is purchased can significantly reduce generator outages. The paper, 'What Causes Natural Gas Fuel Shortages at US Power Plants?' by researchers at Carnegie Mellon University and the North American Electric Reliability Corporation, was published in Energy Policy. (2021-02-16)

NREL heats up thermal energy storage with new solution meant to ease grid stress
Scientists from the National Renewable Energy Laboratory (NREL) have developed a simple way to better evaluate the potential of novel materials to store or release heat on demand in your home, office, or other building in a way that more efficiently manages the building's energy use. (2021-02-16)

A new modifier increases the efficiency of perovskite solar cells
The research team of NUST MISIS has presented an improved structure of perovskite solar cells. Scientists have modified perovskite-based solar cells using MXenes -- thin two-dimensional titanium carbides with high electrical conductivity. The MXenes-based modified cells showed superior performance, with power conversion efficiency exceeding 19% (the reference demonstrated 17%) and improved stabilized power output with respect to reference devices. The results have been published in the Nano energy international scientific journal. (2021-02-09)

Coal and COVID-19: How the pandemic is accelerating the end of fossil power generation
COVID-19 has not only caused a temporary drop in global CO2 emissions, it has also reduced the share of power generated by burning coal - a trend that could in fact outlast the pandemic. This is the key result of a new study by a team of economists based in Potsdam and Berlin that looked at COVID-19's impact on the energy system and demand for electricity. (2021-02-08)

From waste heat to electrical power: A new generation of thermomagnetic generators
Use of waste heat contributes largely to sustainable energy supply. Scientists of Karlsruhe Institute of Technology (KIT) and T?hoku University in Japan have now come much closer to their goal of converting waste heat into electrical power at small temperature differences. As reported in Joule, electrical power per footprint of thermomagnetic generators based on Heusler alloy films has been increased by a factor of 3.4. (DOI: 10.1016/j.joule.2020.10.019) (2021-02-03)

Addressing power differences may spur advantaged racial groups to act for racial equality
When different groups of people come into contact, what's the key to motivating advantaged racial groups to join historically disadvantaged racial minority groups to strive for racial equality and social justice? It's a complex conundrum studied for years by social scientists like Linda Tropp, professor of social psychology at the University of Massachusetts Amherst. (2021-02-02)

Breakthrough for laser-induced breakdown spectroscopy
Researchers under the leadership of Heping Zeng at East China Normal University in Shanghai recently demonstrated a novel technique: plasma-grating-induced breakdown spectroscopy (GIBS). (2021-01-28)

Two-photon polymerization of PEGda hydrogel microstructure with low threshold power with green laser
The fabrication of shape-memory hydrogel scaffolds not only requires biocompatibility, micrometre resolution, high mechanical strength, but also requires a low polymerisation threshold in high-water content environment to incorporate microstructures with biological tissues. Towards this goal, scientists from China and australite developed a new hydrogel formula that full fills this goal and demonstrated water-responsive structures with a shape-memory effect at a micrometre scale. This work is of importance for the development future reversible microdevices in biomedical engineering. (2021-01-20)

Could "Power Walking" fuel the energy revolution? India is ready to step up
India has an energy problem. It currently relies heavily on coal and consumer demand is expected to double by 2040, making its green energy targets look out of reach. Part of the solution could come from harvesting energy from footsteps, say Hari Anand and Binod Kumar Singh from the University of Petroleum and Energy Studies in Dehradun, India. Their new study, published in the De Gruyter journal Energy Harvesting and Systems, shows that Indian attitudes towards power generated through piezoelectric tiles are overwhelmingly positive. (2021-01-19)

CMOS-compatible 3D ferroelectric memory with ultralow power and high speed
POSTECH Professor Jang-Sik Lee's research team develops ferroelectric NAND flash memory. (2021-01-18)

Seawater as an electrical cable !? Wireless power transfers in the ocean
Toyohashi University of Technology research team has successfully transferred power and data wirelessly through seawater by using a power transmitter/receiver with four layers of ultra-thin, flat electrodes. Until now, it had been thought that wireless power transfers could only be achieved through magnetic coupling. This time, with a focus on the high-frequency properties of seawater, a third method for conductive coupling was devised, and a power transmitter/receiver was developed to achieve highly-efficient power transfers. (2021-01-13)

The changing paradigm of next-generation semiconductor memory development
The Korea Institute of Science and Technology(KIST) has announced that the research team led by Dr. Kim Kyoung-Whan at the Center for Spintronics has proposed a new principle about spin memory devices, which are next-generation memory devices. This breakthrough presents new applicability that is different from the existing paradigm. (2021-01-12)

Towards Exawatt-class lasers
Researchers from Osaka University propose a concept for next-generation ultra-intense lasers, possibly increasing the current record from 10 Petawatts to 500 Petawatts. (2021-01-11)

Positive 'tipping points' offer hope for climate
Positive 'tipping points' could spark cascading changes that accelerate action on climate change, experts say. (2021-01-10)

It's getting hot in here: Warming world will fry power plant production in coming years
During the year's hottest months, many people rely on electricity-generated cooling systems to remain comfortable. But the power plants that keep air conditioners pushing out cold air could soon be in a vicious cycle in a warming world-not able to keep up with growing demands on hotter days and driving up greenhouse gas emissions to dangerous levels. (2021-01-06)

Waste to treasure: Crayfish shells to store energy
Other than a spicy night snack, the crayfish has been endowed with greater significance. Prof. ZHU Xifeng's team from University of Science and Technology of China made it possible to use crayfish shell as the biological template for high-performance supercapacitors. (2020-12-21)

Carbon capture's next top model
Creating accurate, detailed models is key to scaling up carbon capture technology. A recent paper led by the University of Pittsburgh Swanson School of Engineering examines and compares the various modeling approaches for hollow fiber membrane contactors (HFMCs), a type of carbon capture technology. The group analyzed over 150 cited studies of multiple modeling approaches to help researchers choose the technique best suited to their research. (2020-12-16)

Benefits of renewable energy vary from place to place
A new study finds the environmental benefits of renewable power generation vary significantly, depending on the nature of the conventional power generation that the renewable energy is offsetting. The researchers hope the work will help target future renewable energy investments in places where they can do the most good. (2020-12-14)

New blended solar cells yield high power conversion efficiencies
Researchers at Hiroshima University in Japan have blended together various polymer and molecular semiconductors as photo-absorbers to create a solar cell with increased power efficiencies and electricity generation. (2020-12-09)

The world's smallest high-performance magnetic tunnel junction
A research group from Tohoku University led by current president Hideo Ohno has developed the world's smallest (2.3 nm) high-performance magnetic tunnel junctions (MTJs). This work is expected to accelerate the advancement of ultrahigh-density, low-power, high-performance non-volatile memory for a variety of applications, such as IoT, AI, and automobiles. (2020-12-08)

Researchers call for renewed focus on thermoelectric cooling
Almost 200 years after French physicist Jean Peltier discovered that electric current flowing through the junction of two different metals could be used to produce a heating or cooling effect, researchers say it is time to step up efforts to find new materials for the thermoelectric cooling market. (2020-12-07)

Optimising laser-driven electron acceleration
In a new paper published in the EPJ D, Etele Molnár, ELI-NP, Bucharest, and co-authors study and review the characteristics of electron acceleration in a vacuum caused by the highest-power laser pulses achievable today looking for the key to maximum net energy gain. (2020-12-04)

New testing system could become the IoT of photovoltaics
New Suns Voc testing measures system voltage as a function of light intensity in outdoor setting, enabling real-time performance measurement and diagnostics (2020-12-04)

No strings attached: maximizing wireless charging efficiency with multiple transmitters
Scientists at Incheon National University, Korea, develop a control strategy that allows for transferring power wirelessly through multiple transmitter coils with maximum efficiency. Unlike conventional approaches in which only the transmitter closer to the receiver is active, this novel method dispatches the optimal amount of current to each transmitter, depending on the degree of coupling with the receiver. This technique will help surpass the hurdles of wired charging in electric vehicles and industrial robots. (2020-12-04)

UBC study explores link between social status and trust in decision-makers
A recent study examining perceptions of power suggests that individuals with lower socioeconomic statuses are more likely to have a negative view of policy or decision-makers. (2020-12-03)

Pumping a nanoparticle to lase at low power
A laser pointer small enough to get inside a cancer cell and stop its 'engine'? The stuff of science fiction? Scientists working at the nanoscale are chipping away at how to build miniature laser devices capable of intracellular bio-imaging and sensing. (2020-12-01)

The shorter the delay, the more effective the neurofeedback
HSE University scientists have for the first time in the world investigated the impact of delayed reinforcement signals in neurofeedback (NFB) training. They have experimentally proven that reducing the delay in feedback (decreasing feedback latency) can significantly increase the efficacy of training. This opens up new potential for the use of NFB for cognitive enhancement, self-regulation, and the treatment of a broad range of neurological disorders from anxiety and depression to epilepsy. (2020-12-01)

Researchers explore population size, density in rise of centralized power in antiquity
A University of Maine-led group of researchers developed Power Theory, a model emphasizing the role of demography in political centralization, and applied it to the shift in power dynamics in prehistoric northern coastal societies in Peru. To test the theory, the team created a summed probability distribution (SPD) from 755 radiocarbon dates from 10,000-1,000 B.P. Researchers found a correlation between the tenets of Power Theory and power structure changes in early Peruvian societies. (2020-11-30)

Archaeology: Neanderthal thumbs better adapted to holding tools with handles
Neanderthal thumbs were better adapted to holding tools in the same way that we hold a hammer, according to a paper published in Scientific Reports. (2020-11-26)

Catapult-like hydrogel actuator designed to deliver high contraction power
Recently, inspired by muscle-powered accelerations in biological jumpers, ZHOU Feng's group from the Lanzhou Institute of Chemical Physics (LICP) of the Chinese Academy of Sciences (CAS) and HE Ximin's group from the University of California, Los Angeles (UCLA) have designed an elastic-driven strong contractile hydrogel through storing and releasing elastic potential energy in polymer network. (2020-11-18)

New green materials could power smart devices using ambient light
Researchers have developed environmentally friendly materials that could harvest enough energy from indoor light to power wireless smart devices. (2020-11-13)

Men feel less powerful in their private lives
Men perceive themselves as having less power in their private than in their public lives, a new study from Lund University has suggested. Furthermore, both men and women agree: power in your private life matters more than that in public life. (2020-11-12)

Identifying the microscopic mechanism of vibrational energy harvesters
The Japanese research team elucidated the microscopic mechanism in which amorphous silica becomes negatively charged as a vibrational energy harvester, which is anticipated to achieve self-power generation without charging, as it is needed for IoT that is garnering attention in recent years with its 'trillion sensors' that create a large-scale network of sensors. Unlike wind power and solar power generation, vibrational power generation, which utilizes natural vibration for power generation, is not affected by weather. (2020-11-11)

Making a case for organic Rankine cycles in waste heat recovery
In a recent research paper, published in the Energy journal, City, University of London's Dr Martin White says cascaded organic Rankine cycle systems could improve the way in which environmentally-friendly power is generated from waste heat. (2020-11-11)

Smart devices to schedule electricity use may prevent blackouts
Power plants generate electricity and send it into power lines that distribute energy to nodes where it can be used. But if the electricity load is more than the system's capacity, transmission can fail, leading to a cascade of failures throughout the electric grid. In the journal Chaos, researchers show demand side control may be an effective solution to stabilizing the reliability of power grids that use a mix of energy generation sources. (2020-11-10)

Assessing consistency in meta-analysis: a new measure considers statistical power
Researchers have improved the assessment of consistency in meta-analysis. The improved consistency measure considers statistical power, and it has potential to alter the interpretation of meta-analyses. (2020-10-27)

Former rebel groups become more moderate after gaining political power in nations with democracy, research shows
Former rebel groups who transform into political parties have adopted a moderate stance after gaining power in more democratic political systems, a study shows. (2020-10-26)

Charging electric cars up to 90% in 6 minutes
POSTECH Professor Byoungwoo Kang's research team uncovers a new Li-ion battery electrode material that can achieve high-energy density and high power capability per volume without reducing particle size. (2020-10-23)

Page 1 of 25 | 1000 Results
   First   Previous   Next      Last   
Brightsurf.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.