AIP Publishing

AIP Publishing One of the world's largest non-profit publishers of scientific information in physics www.aip.org With a Corporate Headquarters in College Park, MD and a Publishing Center in Melville, NY, the American Institute of Physics (AIP) is a 501(c)(3) not-for-profit membership corporation created for the purpose of promoting the advancement and diffusion of the knowledge of physics and its application to human welfare.
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It is the mission of the Institute to serve the sciences of physics and astronomy by serving its member societies, by serving individual scientists, and by serving students and the general public.

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Timeline Photos
08/25/2021

Timeline Photos

Check out this #ASA178 Student Paper award winner, this time from #SignalProcessing: "Characterizing the effects of two ground-based outdoor microphone configurations." Congrats! https://doi.org/10.1121/2.0001388

BYU Department of Physics and Astronomy
BYU Acoustics
U.S. Army Combat Capabilities Development Command Aviation & Missile Center
NASA Langley Research Center

Timeline Photos
08/25/2021

Timeline Photos

TECHNICAL AREA PICK

The Signal Processing tech pick proposes a sound field reproduction method using two rigid circular loudspeaker arrays in a circular harmonic domain. https://doi.org/10.1121/10.0002280

Free through Aug 31.

The University of Electro-communications

Summarizing the last two decades of work, a perspective on transparent conducting materials looks at their latest advanc...
08/24/2021
Comprehensive review of p- and n-type transparent conducting materials

Summarizing the last two decades of work, a perspective on transparent conducting materials looks at their latest advances and future potentials.

Summarizing the last two decades of work, a perspective on transparent conducting materials looks at their latest advances and future potentials.

Rossana Pasquino, an Associate Editor for Physics of Fluids, competes in the Paralympics this week!  We wish her all the...
08/24/2021

Rossana Pasquino, an Associate Editor for Physics of Fluids, competes in the Paralympics this week! We wish her all the best as she represents Italy in wheelchair fencing.

Rossana Pasquino, an Associate Editor for Physics of Fluids, competes in the Paralympics this week! We wish her all the best as she represents Italy in wheelchair fencing.

Self-compression and high-gain amplification enable an affordable, turnkey, and maintenance-free all-fiber laser to gene...
08/24/2021
All-fiber configuration makes single-cycle pulses more accessible

Self-compression and high-gain amplification enable an affordable, turnkey, and maintenance-free all-fiber laser to generate single-cycle optical pulses.

Self-compression and high-gain amplification enable an affordable, turnkey, and maintenance-free all-fiber laser to generate single-cycle optical pulses.

Timeline Photos
08/24/2021

Timeline Photos

The study results presented in this new POMA indicate that impaired hearing sensitivity per se is not the main factor influencing perception of azimuthal motion in sensorineural hearing loss patients. https://doi.org/10.1121/2.0001451

#acoustics #HearingLoss #hearing

Russian Academy of Sciences
North-Western State Medical University named after I.I. Mechnikov

Timeline Photos
08/24/2021

Timeline Photos

SPECIAL ISSUE: MACHINE LEARNING IN ACOUSTICS

This paper presents a semi-analytical method of suppressing acoustic scattering using reinforcement learning algorithms. https://doi.org/10.1121/10.0005545

Free for a limited time.

#Acoustics #metamaterials

Eastern Michigan University
San José State University
Scripps Institution of Oceanography

Now Available | "#Electrostatics of Conducting #Cylinders and #Spheres", authored by John Lekner, Emeritus Prof. of Theo...
08/24/2021

Now Available | "#Electrostatics of Conducting #Cylinders and #Spheres", authored by John Lekner, Emeritus Prof. of Theoretical #Physics Te Herenga Waka—Wellington Uni. Read the first chapter for free: bit.ly/Aug21-Electrostatics

Now Available | "#Electrostatics of Conducting #Cylinders and #Spheres", authored by John Lekner, Emeritus Prof. of Theoretical #Physics Te Herenga Waka—Wellington Uni. Read the first chapter for free: bit.ly/Aug21-Electrostatics

Combination of radio-frequency cavity and linear Paul trap uses superconducting material and special geometry to elimina...
08/23/2021
New superconducting radio-frequency trap keeps ions ultra-stable

Combination of radio-frequency cavity and linear Paul trap uses superconducting material and special geometry to eliminate electromagnetic noise affecting the trapped ions.

Combination of radio-frequency cavity and linear Paul trap uses superconducting material and special geometry to eliminate electromagnetic noise affecting the trapped ions.

Timeline Photos
08/23/2021

Timeline Photos

In this #ASA178 POMA, Engineering & Computer Science - UTDallas researchers compare fixed and adaptive beamformers for speech enhancement on smartphones: https://doi.org/10.1121/2.0001314

#SignalProcessing #acoustics

Timeline Photos
08/23/2021

Timeline Photos

SPECIAL ISSUE: MACHINE LEARNING IN ACOUSTICS

Mel frequency cepstral coefficient temporal feature integration for classifying squeak and rattle noise: https://doi.org/10.1121/10.0005201

Free for a limited time.

Royal Melbourne Institute of Technology

#acoustics #MachineLearning

This #AVSQuantumScience article investigates the use of twisted Gaussian Schell Model beams to produce pairs of spatiall...
08/18/2021
Partially coherent spontaneous parametric downconversion: Twisted Gaussian biphotons

This #AVSQuantumScience article investigates the use of twisted Gaussian Schell Model beams to produce pairs of spatially correlated photons with interesting and possibly useful properties. #quantum
AVS
Universidad de Concepción
Instituto Milenio MIRO

Partially coherent optical beams present phenomena that may not appear in perfectly coherent beams. In this regard, spontaneous parametric downconversion is an intriguing physical process, since th...

Though hand-washing is proven effective in combating the spread of disease and infection, the physics behind it has rare...
08/18/2021
Wash Your Hands For 20 Seconds: Physics Shows Why - AIP Publishing LLC

Though hand-washing is proven effective in combating the spread of disease and infection, the physics behind it has rarely been studied. But in Physics of Fluids, by AIP Publishing, researchers from Hammond Consulting Limited describe a simple model that captures the key mechanics of hand-washing.

Link to article: Will we ever wash our hands of lubrication theory? DOI: 10.1063/5.0060307 WASHINGTON, August 17, 2021 — Though hand-washing is...

Timeline Photos
08/18/2021

Timeline Photos

Previous studies report mixed evidence regarding bilinguals’ cognitive advantage in inhibition and other executive function tasks compared to monolinguals. This study aims to replicate previous research on Mandarin-English bilinguals: https://doi.org/10.1121/2.0001450

I-LABS
UW Speech and Hearing Sciences

#acoustics #speech

Timeline Photos
08/18/2021

Timeline Photos

SPECIAL ISSUE: ACOUSTOFLUIDICS

Three-dimensional numerical analysis as a tool for optimization of acoustophoretic separation in polymeric chips: https://doi.org/10.1121/10.0005629

Free for a limited time.

Consejo Superior de Investigaciones Centíficas (CSIC)

#acoustics #acoustofluidics

When dandelion seeds are sent into the air, the interplay between their unique bristle geometry and the properties of th...
08/17/2021
Dandelion seeds stay afloat with the help of vortex pairs

When dandelion seeds are sent into the air, the interplay between their unique bristle geometry and the properties of the air around them help to keep them flying.

When dandelion seeds are sent into the air, the interplay between their unique bristle geometry and the properties of the air around them help to keep them flying.

Timeline Photos
08/17/2021

Timeline Photos

An investigation into the performance limitations of active acoustic cloaking using an acoustic quiet-zone: https://doi.org/10.1121/2.0001190

Acoustical Engineering at ISVR, University of Southampton

#ASA178 #SignalProcessing #acoustics

Timeline Photos
08/17/2021

Timeline Photos

TECHNICAL AREA PICK

The Architectural Acoustics tech pick makes use of Istanbul's Hagia Sophia’s rich formal and material characteristics to conduct a comprehensive investigation of room acoustics coupling. https://doi.org/10.1121/10.0002971

Bilkent University

Free through Aug 31

Analyzer-free, intensity-based, wide-field magneto-optical microscopy
08/17/2021
Analyzer-free, intensity-based, wide-field magneto-optical microscopy

Analyzer-free, intensity-based, wide-field magneto-optical microscopy

In conventional Kerr and Faraday microscopy, the sample is illuminated with plane-polarized light, and a magnetic domain contrast is generated by an analyzer making use of the Kerr or Faraday rotat...

Are you a professional or student working in #electrochemistry, multiscale modeling, or clean #energy applications? Just...
08/17/2021

Are you a professional or student working in #electrochemistry, multiscale modeling, or clean #energy applications? Just published - "Multiscale Modeling of Electrochemical Reactions and Processes" edited by Yun Wang Griffith University.

Read the first chapter for free: bit.ly/Aug21-Multiscale 📚

Are you a professional or student working in #electrochemistry, multiscale modeling, or clean #energy applications? Just published - "Multiscale Modeling of Electrochemical Reactions and Processes" edited by Yun Wang Griffith University.

Read the first chapter for free: bit.ly/Aug21-Multiscale 📚

Timeline Photos
08/16/2021

Timeline Photos

Scientists from Politechnika Gdańska applied an autoencoder neural network to classifying sound events in road traffic: https://doi.org/10.1121/2.0001227

#acoustics #signalprocessing #noise #ASA178

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General information

The American Institute of Physics (AIP) is an organization of 10 physical science societies, representing more than 135,000 scientists, engineers, and educators. As one of the world's largest publishers of scientific information in physics, AIP employs innovative publishing technologies and offers publishing services for its Member Societies. AIP's suite of publications includes 15 journals, three of which are published in partnership with other organizations; magazines, including its flagship publication Physics Today; and the AIP Conference Proceedings series. Through its Physics Resources Center, AIP also delivers valuable services and expertise in education and student programs, science communications, government relations, career services for science and engineering professionals, statistical research, industrial outreach, and the history of physics and other sciences.

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The human body weight force on human body joints The human joints bear an average human body of 60 kg for years without joints damage. Let's say the body above the knees for a human is 40 kg. An average human knees bear a 40 kg body above the knees for years without knees damage. If an object like a rock of 40 kg is fixed to the upper part, the knees will bear the rock of 40 kg for a short period of time, minutes, hours, days, before the knee's damage. The time the knees bear the upper part with no rock is years, the time the knees bear the body with the rock is several hours. First the knees bear 40 kg upper part for years, then the knees bear a double of 80 kg for hours. Even though the mass doubled, the time of bearing must double as well, but it actually multiplies by years or thousands of hours which is a very big number compared to only several hours. The force of human upper part on the knees is very small compared to the force of any object of the same mass on the knees. That why human walks on his knees carrying his upper part for years, but he walks on his knees carrying an object of the same mass for only several hours. 1) I have an upper part of 60 kg and I lift a rock of 60 kg : I put the rock on stomach and back equally, I have 60 kg upper part before putting the rock and 120 kg after putting the rock. The period of time my knees bear the rock plus my upper part or 120 kg can be approximately 5 hours. The time my knees bear when I remove the rock should not exceed approximately 10 hours because I removed half of the load. But when I remove the rock, the time my knees bear is years. I left with upper part body alone, and human knees bear a 60 kg human upper part for years. This difference in time is because a human body alone presses knees with tiny force and this tiny force make knees bear this upper part for years even though the bearing should not exceed 10 hours The difference between knees bearing 60 kg upper part for years and knees bearing 120 kg for 5 hours is very big. 2) I have an upper part of 40 kg and I lift a rock of 40 kg : I put the rock equally on back and stomach. The total weight I carry is 80 kg, it is the rock 40 kg plus my body above the knees 40 kg. Now we have a person of upper part 80 kg, this person does not carry any load. I will lift a load of 80 kg, which is my upper part 40 kg plus the rock 40 kg, the person will lift an 80 kg load which is his mere upper part. Carrying a rock of 40 kg" 40 kg rock plus my upper part 40 kg or 80 kg" for a day will damage the knees. However, the person's knees do not injure even if he carries his upper part of 80 kg for many years.
A new scientific discovery This discovery shows that a human can lift his body with force smaller than the body weight. Observations An average human can jump high raising his 60 kg weight while he barely moves a rock of 60 kg A human can run fast with his massive 60 kg weight while he barely moves rock of 60 kg A human can lift his body of 60 kg holding a bar many times but he will barely move a rock of 60 kg I can lift my whole body 60 kg with my feet , but I can't lift a 60 kg mass with my whole body. Explanation A muscle lifts its mass with force smaller than the muscle's weight. This is a muscle force on its own mass. If a muscle lifts any other muscle not itself it will need force greater than the weight .Human body consists of muscles that are connected to each other, so a human is a big muscle. A human can lift himself with his own force, this force will be smaller than the human body weight, but if a human lifts any other human or any other object, the human will need force greater than the weight. Will a person climbing a ladder and falling on a generator turbine generate energy from nothing? The input human biological energy he exerts to climb the ladder equals the energy on the turbine, and this is regardless of the calculation of the force to climb the ladder and the force of weight on the turbine.so energy is conserved Experiment Suppose a person of 60 kg weight stands on a surface of a scale.When the person lifts himself up short distance like someone trying to pick a fruit on a tree the scale will start to read forces m kg in which the total force displayed on the scale is 60+m kg.These m kg forces are the forces the person pushes on the scale and lifts himself with which are smaller than the body weight. m will always be smaller than 60 kg The fore of weight is 60 kg or 60*g=600 newtons.The force a person pushes on the scale are m kg or mg newtons, g is the gravity acceleration 10 m/s².
7 scientific facts from space science, satellites, celestial mechanics and meteorology proves that the Earth is standing still and does not turn around itself and not revolve around the sun Rather, the sky, the universe or space orbits around the Earth according to the science of air navigation The first evidence If the Earth turn around it self from West to East, The direction rotation geostationary satellites like Nile sat should be turn same Earth rotation direction from west to east, according to mechanic laws Question Why is the geostationary satellites like Nile sat placed opposite direction of alleged Earth's rotation from east Answer Because the earth is standing still and the sky rotates from west to east Therefore geostationary Satellites are placed opposite alleged direction of Earth's rotation with same speed of universe To remains above the area to be covered to receive the signal The second evidence The spacecraft orbits around the Earth one circle 360 degrees in 90 minutes With same direction of the alleged Earth rotation from west to east Question Why spacecraft can't orbit around the Earth in opposite the alleged Earth's rotation ? Answer Because the earth is standing still and the sky rotates from west to east at a speed close to the spacecraft speed So the spacecraft can't orbit around the Earth opposite the alleged Earth's rotation ? The third scientific fact Carioles force is affects 1- Phonic pendulum during its vibration motion, 2- weather, 3- rockets, 4- satellite 5- spacecraft Question Why the Carioles force is very weak near the Earth's surface and increases as the altitude increases ? Answer Because the earth is standing still and Carioles force coming from sky rotation and not from the earth rotate The fourth scientific fact A solar eclipse occurs when the moon is between the sun and the earth, assuming the duration of the eclipse was 8 hours on Earth According to Copernicus' theory 1- The sun is steady not move 2- The moon will turn around the earth from west to east 4 longitude or 4 degrees 3- The earth will turn around it self 120 longitude or degrees from west to east , if the earth turn around it self from west to east the eclipse will end above Atlantic Ocean 120 longitude west of the Greenwich Line. Question Why the eclipse end above Asia 120th longitude east of the Greenwich mean? Answer Because the earth is standing still , Sun and moon turn around the earth from east to west as the sun’s angular velocity is faster half degree than moon’s angular velocity Fifth Scientific Truth If the Earth revolves around the sun We sent a spacecraft towards the sun on March 21, when the sun is perpendicular to the equator, and after 6 months on 23 September, The Earth revolves 180 degrees around the earth and the earth will be behind the sun and the Spacecraft in front of the sun In this day The astronaut can not be able to see the Earth Question Why does the spacecraft keep orbiting the Earth while the astronauts stay in view of the Earth answer because the earth is standing still and the universe turn around the earth And the astronaut will always watch the Earth Sixth scientific fact Astronomers believe that the sun’s gravity is stronger than the earth’s gravity, The earth’s gravity is stronger than the moon’s gravity. So that the sun’s gravity is stronger than the moon’s gravity, Question Why tides and ebb occur when the moon is perpendicular to the earth, and do not occur when the sun is perpendicular to the earth Answer 1- There is no effect of the sun's gravity on the earth 2 - Earth's gravity ends at an altitude of 400 km 3 - This is evidence of the error of the idea of the sun’s gravity stronger than that of the moon’s The seven question If the Earth is rotating at a speed of 1667 km h Question Why the wind speed so small beside the ground serves and the wind speed increases as the height increases from the ground and the wind will be direction is westerly answer because the earth is standing still and the universe turn around the earth As a result of the rotation of the universe, will make fraction with the atmosphere and makes it go with it from west to east Captain Nader Jneid An international arbitration adviser on aircraft accidents from the Egyptian Bar Association Qualification: Syrian Air force academy ATP + F/E + F/D = F.A.A from USA [email protected] [email protected] Mobile& WHATS : 002011 28 543226
Earth System Structure https://dx.doi.org/10.2139/ssrn.3640056 12 Pages Posted: 27 Jul 2020 Last revised: 1 Aug 2020 Zhen Chu Independent Multiple version iconThere are 5 versions of this paper Date Written: July 1, 2020 Abstract The magnetic field and structure of the Earth is a major theoretical problem in geophysics. The 3D model of the Earth system is reconstructed by using the thermo-electro-magnetic principle, the Earth's magnetic field standard reference field IGRF12 model and the earth pipeline theory, combined with the principle of fluid dynamics cylinder flow similarity experiment. Through the theoretical derivation and actual observation and experiment, the relationship between the core-crustal column and the crust is constructed. Study the mantle flow to generate a magnetic field and generate a gravity process. Explore the geomagnetic mechanism and earth structure of the mantle flow in the operation of the Earth system.