Beheshti conducting tribological study of propulsion shaft materials subjected to advanced surface strengthening treatments
2023-03-13
(Press-News.org)
Ali Beheshti, Assistant Professor, Mechanical Engineering, received funding for the project: "Surface Integrity and Tribological Study of Propulsion Shaft Materials Subjected to Advanced Surface Strengthening Treatments."
In this project, Beheshti and his team are conducting detailed analyses of IN625, a nickel-based superalloy, and Ni-Cu, alloys of copper and nickel, subjected to an advanced laser peening (LP) process. The process uses very high-speed laser generated shock waves applied to the material and results in significant mechanical strength.
Specifically, they are studying unpeened, shot peened, and laser peened (LP) overlay IN625 as well as Ni-Cu materials provided by Curtiss Wright Surface Technology (CWST) through finite element simulation as well as a wide range of microscopy and mechanical characterization techniques.
Regarding the importance of the project, Beheshti said, "Materials with high fatigue, corrosion, and wear resistance are highly important for the Navy fleet working under harsh conditions like corrosive and high temperature environments. This project will study and quantify the effect of LP process on mechanical strength enhancement of those superalloys."
Beheshti received $44,121 from Metal Improvement Company, LLC, on a subaward from the Office of Naval Research. Funding began in Jan. 2023 and will end in Jan. 2024.
###
About George Mason University
George Mason University is Virginia's largest public research university. Located near Washington, D.C., Mason enrolls 38,000 students from 130 countries and all 50 states. Mason has grown rapidly over the last half-century and is recognized for its innovation and entrepreneurship, remarkable diversity and commitment to accessibility. Learn more at http://www.gmu.edu.
END
ELSE PRESS RELEASES FROM THIS DATE:
2023-03-13
Scientists from German Cancer Research Center (DKFZ), together with colleagues from Germany, Israel, and the USA, have found that the gut microbiome may modulate the efficacy of CAR-T cellular immunotherpy CAR-T cells in patients with B cell lymphomas. Individualized microbiome information retreaved from patients‘ gut microbiomes prior to initiation of CAR T therapy could accurately predict their subsequent responsiveness to therapy, but only in the condition that these patients were not pre-treated with broad spectrum ...
2023-03-13
During meiosis, reshuffling of genetic information between homologous chromosomes through meiotic recombination creates variable gametes and hence genetic variation in offsprings. Meiotic recombination occurs in the context of the meiotic chromosome axis, a proteinaceous structure along which sister chromatids are arranged in a loop base array during prophase I. Data across organisms suggests meiotic chromosome axis serving as a scaffold for meiotic recombination.
In the model plant A. thaliana, the axis associated proteins ASY1 and ASY3 are critical for synapsis and meiotic recombination. “Due to the key role of axis proteins such as ...
2023-03-13
One of the biggest challenges for a climate-neutral energy supply is the storage of electrical energy. Conventional batteries can hold large amounts of energy, but the charging and discharging processes take time. Supercapacitors, on the other hand, charge very quickly but are limited in the amount of stored energy. Only in the last few years has a new class of materials been discussed that combines the advantages of batteries with those of supercapacitors, named pseudocapacitors.
Promising materials: Pseudocapacitors
Among pseudocapacitive materials, so-called MXenes consisting of a large family of 2D transition metal carbides and nitrides appear particularly promising. Their structure ...
2023-03-13
The number of injuries in youth athletics is significantly reduced when coaches and parents have access to digital information on adolescent growth. It also takes twice as long for the first injury to occur. This is shown in a study from Linköping University published in the British Journal of Sports Medicine.
Many promising athletes have had their careers ruined because of injuries. One thing that almost all events in athletics have in common is a high load for a short time, as in jumping, throwing and running. ...
2023-03-13
We all know how important sleep is for mental health, but a meta-analysis publishing in the journal Current Biology on March 13 found that getting good shut-eye also helps our immune systems respond to vaccination. The authors found that people who slept less than six hours per night produced significantly fewer antibodies than people who slept seven hours or more, and the deficit was equivalent to two months of antibody waning.
“Good sleep not only amplifies but may also extend the duration of protection of the vaccine,” says senior author Eve Van Cauter, professor emeritus at the University of Chicago who, along ...
2023-03-13
The arrival of the new year is a prime time for Antarctic birds like the south polar skua, Antarctic petrel, and snow petrel to build nests and lay their eggs. However, from December 2021 to January 2022, researchers did not find a single skua nest on Svarthamaren, one of the regions where the birds go to raise their young. Similarly, the number of Antarctic petrel and snow petrel nests dropped to almost zero.
In these regions, climate change caused snowfall and snow accumulation to be significantly higher than in previous years. Now, a study published on March 13 in the journal Current Biology shows that these unusually strong snowstorms ...
2023-03-13
About The Study: In this study of 398,000 adult outpatients with COVID-19, the absolute risk of venous thromboembolism (VTE) was low. Several patient-level factors were associated with higher VTE risk; these findings may help identify subsets of patients with COVID-19 who may benefit from more intensive surveillance or VTE preventive strategies.
Authors: Margaret C. Fang, M.D., M.P.H., of the University of California, San Francisco, is the corresponding author.
To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/
(doi:10.1001/jamanetworkopen.2023.2338)
Editor’s ...
2023-03-13
BOSTON – Hypertension is the leading risk factor for death worldwide. During the COVID-19 pandemic, routine blood pressure assessments decreased because of global disruptions to medical care delivery. However, new research has found that a remote hypertension program, operated by Mass General Brigham since 2019, successfully supported patients through the pandemic in achieving their blood pressure goals, with patients who enrolled during the pandemic reaching and maintaining their goal blood pressures an average of two months earlier than in the pre-pandemic period. The results, published in Journal ...
2023-03-13
How strongly a vaccine protects you may depend on getting enough sleep in the days before and after inoculation, finds a new meta-analysis examining the relationship between sleep duration and the body’s response to vaccination.
Sleeping fewer than six hours per night around the time of vaccination was associated with a robust decrease in antibody response, according to the multi-institution study published March 13 in Current Biology. Adults are typically recommended to get between seven and nine hours of sleep per night.
The meta-analysis included data on the association between sleep duration and antibody responses for the ...
2023-03-13
In reviewing data from previous studies, a team lead by researchers at the University of Chicago and the French National Institute of Health and Medical Research (Inserm) found that individuals who had fewer than six hours of sleep per night in the days surrounding vaccination had a blunted antibody response. That indicates efforts to promote heathy sleep duration ahead of an immunization could be an easy way to improve vaccine effectiveness. The study was published March 13 in Current Biology.
The latest work builds off a 2002 study by members of the team showing that restricting sleep ...
LAST 30 PRESS RELEASES:
[Press-News.org] Beheshti conducting tribological study of propulsion shaft materials subjected to advanced surface strengthening treatments
