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Hace 5 días · Currently, ambient air quality standard in China [48] only released a limit value for BaP with a daily average concentration of 2.5 ng/m 3. However, based on the C-R curve of BaP stemmed from our rigorous epidemiology design and province-wide surveillance data, the existing standard may be inadequate and insufficient in protecting public health.
Hace 3 días · Airborne suspensions of extremely small solid or liquid particles called “particulates” (e.g., soot, dust, smokes, fumes, mists), especially those less than 10 micrometres (μm; millionths of a metre) in size, are significant air pollutants because of their very harmful effects on human health.
Hace 5 días · Airborne particulate matter is a Group 1 carcinogen. Particulates are the most harmful form (other than ultra-fines) of air pollution as they can penetrate deep into the lungs and brain from blood streams, causing health problems such as heart disease, lung disease, cancer and preterm birth. There is no safe level of particulates.
Hace 3 días · By Kris Osborn, President, Center of Military Modernization. The recently revealed Northrop Grumman photo of the sleek, stealthy airborne B-21 Raider bomber presents a new and significant view of the mysterious and largely “black” aircraft, a next-generation platform reported by Pentagon weapons developers containing paradigm-changing technologies in the realm stealth, sensing, computing ...
Hace 2 minutos · The reimagined suite for the next generation of tech-savvy passengers elevates the on-board experience, enhancing airline loyalty, passenger satisfaction and profitability. HAMBURG, Germany, May ...
Hace 2 días · In addition to its air to ground armament; the Typhoon can carry a mixture of air to air weaponry to fulfill its role as an air superiority fighter. This includes the ASRAAM , IRIS-T , and the AIM-9 Sidewinder heat seeking missiles; and the AIM-120 AMRAAM and the MBDA Meteor beyond visual range radar guided missiles.
Hace 5 días · The air orbit where turbulence occurred during the two flight segments are ... The ROC curve of an ideal machine learning model would overlap ... Shao, Pak-Wai Chan, and Hongda Tai. 2024. "Identification of Airline Turbulence Using WOA-CatBoost Algorithm in Airborne Quick Access Record (QAR) Data" Applied Sciences 14, no ...
