PRESS-NEWS.org - Press Release Distribution
PRESS RELEASES DISTRIBUTION

Moscow Institute of Physics and Technology specialists studied jet fuel ignition

Scientists from Moscow Institute of Physics and Technology published an experimental study of ignition of jet fuel

2014-09-04
(Press-News.org) Researchers from Moscow Institute of Physics and Technology, Viktor Zhukov, Vladislav Sechenov and Andrei Starikovsky, have published experimental data on the combustion of jet fuel in the journal Fuel. The results of their research are important for simulating processes in jet engines.

In their paper, the scientists described how quickly a mixture of jet fuel and oxygen ignites depending on different conditions. This value, called the induction period or combustion delay period, was defined for different temperatures, pressure values and blending ratios. The data obtained at the Department of Aerophysics and Space Research allows for validating kinetic models of the burning of kerosene, which is a complex mixture of various hydrocarbons.

According to Viktor Zhukov, scientists are able to accurately simulate the burning of simple gas mixtures, for example, natural gas or liquefied petroleum gas, and it is far more difficult to simulate the burning of more complex fuels, including jet fuel. The burning of such complex fuels is studied in a special experimental setup.

The paper focuses specifically on kerosene, not biofuels or alternative fuels based on liquefied natural gas. According to the researchers, the choice of fuel was determined by its prevalence: the vast majority of airlines operate on kerosene derived from petroleum. The cost of alternative fuels is about twice as high and their sources so far are too limited to mass-replace kerosene.

INFORMATION: Note: An author of the study, Vladislav Sechenov, passed away in 2014, shortly before its publication. Mr. Sechenov was an assistant professor at MIPT and headed a laboratory at the Department of Aerophysics and Space Research. He authored a number of outstanding research projects on the physics of plasma.


ELSE PRESS RELEASES FROM THIS DATE:

Should scientists handle retractions differently?

2014-09-04
It is one of the highest-profile cases of scientific fraud in memory: In 2005, South Korean researcher Woo-Suk Hwang and colleagues made international news by claiming that they had produced embryonic stem cells from a cloned human embryo using nuclear transfer. But within a year, the work had been debunked, soon followed by findings of fraud. South Korea put a moratorium on stem-cell research funding. Some scientists abandoned or reduced their work in the field. But the case is not so simple: By 2007, other stem-cell researchers had found that the debunked research ...

Students report greater learning gains in traditional science courses

2014-09-04
Students taking traditional, in-class science courses reported higher perceived learning gains than students enrolled in online distance education science courses. Notably, African-American students taking traditional science courses self-reported greater affective and psychomotor learning gains than students taking online science courses. These are the key findings of a new study co-authored by a Clemson University researcher and published in the most recent issue of Black History Bulletin. The purpose of the study, funded by a grant from the National Science Foundation ...

Drexel team unveils Dreadnoughtus: A gigantic, exceptionally complete sauropod dinosaur

Drexel team unveils Dreadnoughtus: A gigantic, exceptionally complete sauropod dinosaur
2014-09-04
This news release is available in Spanish. PHILADELPHIA (September 4, 2014) – Scientists have discovered and described a new supermassive dinosaur species with the most complete skeleton ever found of its type. At 85 feet (26 m) long and weighing about 65 tons (59,300 kg) in life, Dreadnoughtus schrani is the largest land animal for which a body mass can be accurately calculated. Its skeleton is exceptionally complete, with over 70 percent of the bones, excluding the head, represented. Because all previously discovered supermassive dinosaurs are known only from relatively ...

Phase III FIRST™ (MM-020/IFM 07-01) trial of REVLIMID® (lenalidomide) plus dexamethasone in newly diagnosed multiple myeloma patients who are not candidates for stem cell transplant published in New E

2014-09-04
SUMMIT, N.J. (Sept. 4, 2014) – Celgene Corporation (NASDAQ:CELG) today announced that data from FIRST (MM-020/IFM 07-01)—an open-label phase III randomized study of continuous REVLIMID (lenalidomide) in combination with dexamethasone in patients newly diagnosed with multiple myeloma (NDMM) who are not candidates for stem cell transplant—have been published in the Sept. 4 issue of the New England Journal of Medicine. Initial findings, including that the trial had met its primary endpoint of progression free survival (PFS), were reported during the plenary session at the ...

Nano-pea pod model widens electronics applications

2014-09-04
New York | Heidelberg, 4 September 2014 -- Periodic chain-like nanostructures are widely used in nanoelectronics. Typically, chain elements include the likes of quantum rings, quantum dots, or quantum graphs. Such a structure enables electrons to move along the chain, in theory, indefinitely. The trouble is that some applications require localised electrons—these are no longer in a continuous energy spectrum but in a discrete energy spectrum, instead. Now, a new study by Russian scientists identifies ways of disturbing the periodicity of a model nanostructure to obtain ...

Speaking of chemistry: Rethinking football head injuries (video)

Speaking of chemistry: Rethinking football head injuries (video)
2014-09-04
WASHINGTON, Sept. 4, 2014 — Football season is here, and along with thousands of lost hours of productivity from fantasy teams, there's a renewed discussion on the impact of head injuries on players. This week's Speaking of Chemistry focuses on a brain disorder called chronic traumatic encephalopathy (CTE), whose symptoms include memory loss, depression and aggressive or violent behavior. Current detection methods can only identify CTE after a patient has died, leaving many NFL players with a diagnosis that came too late. Now doctors are developing a way to spot CTE in ...

Titania-based material holds promise as new insulator for superconductors

Titania-based material holds promise as new insulator for superconductors
2014-09-04
Research from North Carolina State University shows that a type of modified titania, or titanium dioxide, holds promise as an electrical insulator for superconducting magnets, allowing heat to dissipate while preserving the electrical paths along which current flows. Superconducting magnets are being investigated for use in next-generation power generating technologies and medical devices. Regular conductors conduct electricity, but a small fraction of that energy is lost during transmission. Superconductors can handle much higher currents per square centimeter and lose ...

Normal-weight counselors feel more successful at helping obese patients slim

2014-09-04
A new study by researchers at the Johns Hopkins Bloomberg School of Public Health suggests that normal-weight nutrition and exercise counselors report feeling significantly more successful in getting their obese patients to lose weight than those who are overweight or obese. A report on the findings, published online Sept. 4 in the journal Obesity, suggests that patients may be more receptive to those who "practice what they preach." "Our research shows that the personal weight of health professionals matters when assessing their perceived level of success in helping ...

Breast conserving therapy shows survival benefit compared to mastectomy in early-stage patients

2014-09-04
When factoring in what is now known about breast cancer biology and heterogeneity, breast conserving therapy (BCT) may offer a greater survival benefit over mastectomy to women with early stage, hormone-receptor positive disease, according to research from The University of Texas MD Anderson Cancer Center. The study findings defy the conventional belief that the two treatment interventions offer equal survival, and show the need to revisit some standards of breast cancer practice in the modern era. The research was presented at the 2014 Breast Cancer Symposium by ...

Disparities persist in early-stage breast cancer treatment, MD Anderson study finds

2014-09-04
Despite its acceptance as standard of care for early stage breast cancer almost 25 years ago, barriers still exist that preclude patients from receiving breast conserving therapy (BCT), with some still opting for a mastectomy, according to research from The University of Texas MD Anderson Cancer Center. The study, to be presented at the 2014 Breast Cancer Symposium, finds that those barriers that still exist are socio-economic, rather than medically-influenced. Meeghan Lautner, M.D., formerly a fellow at MD Anderson, now at The University of Texas San Antonio, will present ...

LAST 30 PRESS RELEASES:

Machine learning on blockchain: A new approach to engineering computational security

Vacuum glazing: A promising solution for low-carbon buildings

Racial and ethnic differences in out-of-pocket spending for maternity care

Study reveals racial and ethnic disparities in maternity care spending

Changes in food insecurity among US adults with low income during the COVID-19 pandemic

After NIH decision to cap indirect costs, prominent molecular biologist calls for swift action, petition signatures

Omitting race from lung function equations increases detection of asthma in Black children

The role of solute carrier family transporters in hepatic steatosis and hepatic fibrosis

Cold sore discovery IDs unknown trigger for those annoying flare-ups

Health organizations join forces on Rare Disease Day for idiopathic pulmonary fibrosis

How many languages can you learn at the same time? – Ghanaian babies grow up speaking two to six languages

Virginia Tech to lead $10 million critical mineral research coalition in Appalachia

CFRP and UHPC: New insights into strengthening reinforced concrete beams under thermocyclic distress

Armsworth receives SEC Faculty Achievement Award

Novel network dynamic approach presents new way for aeroengine performance evaluation

Gene therapy developed for maple syrup urine disease shows promise, new UMass Chan study reports

Ursodeoxycholic acid for the management of drug-induced liver injury: Role of hepatoprotective and anti-cholestatic mechanisms

Hepatic biliary adenofibroma: Histological characteristics, diagnostic challenges, and its role as a precursor to intrahepatic cholangiocarcinoma

Unlocking the role of long non-coding RNAs in liver disease progression

McMaster researchers uncover blood metabolites that may influence early childhood development

Why don’t pandas eat more meat? Molecules found in bamboo may be behind their plant-based diet

Development of 'transparent stretchable substrate' without image distortion could revolutionize next-generation displays

Improving the scope of wearable monitors

Zeroing in: SMU project to boost indoor localization capabilities for the public agencies

E. coli strain in Egyptian dairy products also found in Japan school outbreak

Quantum computing “a marathon, not a sprint”

Large population study identifies long-term health risks after COVID-19 hospitalization

Element relational graph-augmented multi-granularity contextualized encoding for document-level event role filler extraction

Employee burnout can cost employers millions each year

The cost of domestic violence to women's employment and education

[Press-News.org] Moscow Institute of Physics and Technology specialists studied jet fuel ignition
Scientists from Moscow Institute of Physics and Technology published an experimental study of ignition of jet fuel