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[期刊论文] 作者：A. Wünsche,
来源：理论数学进展(英文) 年份：2021
As starting point for patterns with seven-fold symmetry, we investigate the basic possibility to construct the regular heptagon by bicompasses and ruler. To cov...
[期刊论文] 作者：Donald A. Drew,
来源：应用数学(英文) 年份：2021
Addiction is a societal issue with many negative effects. Substances that cause addictive reactions are easily ingested and interact with some part of the neura...
[期刊论文] 作者：Brijen A. Joshi,
来源：高能物理(英文) 年份：2021
A new field is introduced named quagnetic field. It appears as gravitational curvilinear vector field similar to electromagnetic curvilinear magnetic field. Ein...
[期刊论文] 作者：Ayisha A. Arishi,
来源：大气和气候科学(英文) 年份：2021
The aim of the study is to classify the Sandstorms according to year seasons as well as their spatial variation in Saudi Arabia. Factor analysis has been used f...
[期刊论文] 作者：A. M. Al-Bugami,
来源：应用数学与应用物理(英文) 年份：2021
In this paper, the existence and uniqueness of solution of singular Hammerstein-Volterra integral equation (H-VIE) are considered. Toeplitz mat...
[期刊论文] 作者：ElSayed A. ElNashar,
来源：纺织科学与技术(英文) 年份：2021
Objectives of the research to present a modern theory of water purification for multiple purposes entitled “a novelties filtration theory of liquid chromatogra...
[期刊论文] 作者：Vitali A. Tatartchenko,
来源：光学与光子学期刊（英文） 年份：2021
The PeTa (Perelman-Tatartchenko) effect is the radiation of the energy of a first-order phase transition during the transition from a less condensed phase to a more condensed one. The effect was independently discovered by M. Perelman and t......
[期刊论文] 作者：Abdullah A. Alabdulgader,
来源：自然科学期刊（英文） 年份：2021
Human Consciousness is one of most elusive issues in the scientific history. Its nature created major historical debate started thousands of years ago and still ongoing. Despite the explosive developments in the last century to explore its ......
[期刊论文] 作者：Paul A. LaViolette,
来源：天文学与天体物理学国际期刊（英文） 年份：2021
The no-evolution, concordance expanding universe cosmology and no-evolution, static universe tired light model are compared against observational data on eight cosmology tests. The no-evolution tired light model is found to make a superior ......
[期刊论文] 作者：Paul A. LaViolette,
来源：天文学与天体物理学国际期刊（英文） 年份：2021
Beginning from the premise that the universe is static, and that the cosmological redshift is due to a nonconservative tired light effect, the following examines evidence supporting the prediction that photons will progressively blueshift w......
[期刊论文] 作者：Richard A. Hutchin,
来源：光学与光子学期刊（英文） 年份：2021
This paper begins by exploring a useful and neglected detail of a photon—its physical size perpendicular to the direction of propagation in the same way as an atom or neutron has a physical size. Such a photon size would be quite separate ......
[期刊论文] 作者：Richard A. Formato,
来源：无线工程与技术（英文） 年份：2021
A six-element Yagi-Uda array is optimally designed using Central Force Optimization (CFO) with a small amount of pseudo randomly injected negative gravity. CFO is a simple, deterministic metaheuristic analogizing gravitational kinematics (m......
[期刊论文] 作者：A. Tabish,
来源：健康（英文） 年份：2021
The COVID crisis in India shows no sign of abating. The country of 1.4 billion has passed 30.5 million COVID-19 infections and over 402,000 deaths. Even government figures are likely underestimated due to problems with testing and reporting......
[期刊论文] 作者：Patricia A. Fleming,
来源：考试与评价·高二版 年份：2021
Ive always viewed life from the side lines， Just watching it passing me by. In the past， too afraid to just let go and live， And lately too tired to try. Ive envied the people around me So invest...
[期刊论文] 作者：Naema A. Ali,
来源：土木工程期刊(英文) 年份：2021
In many sites on Egypt desert roads collapsible soils is...
[期刊论文] 作者：Carlos A. Melendres,
来源：现代物理(英文) 年份：2021
We present a model of the universe based on the theory that space consists of energy quanta. We use the thermodynamics of an ideal gas to elucidate the composition, accelerated expansion, and the nature of dark energy and dark matter withou......
[期刊论文] 作者：Nadia A. Abd-El-Aziz,
来源：食品与营养科学(英文) 年份：2021
Our study investigated preservation Undulate venus (...
[期刊论文] 作者：David A. Hart,
来源：生物医学工程(英文) 年份：2021
Currently, there is an obesity epidemic in the developed world, with both adults and children being affected. The consequence...
Human Heterogeneity and Survival of the Species: How Did It Arise and Being Sustained?—The Conundrum
[期刊论文] 作者：David A. Hart,
来源：生物医学工程(英文) 年份：2021
Current humans, Homo sapiens, are genetically and epigenetically very heterog...
[期刊论文] 作者：NeffLaura,WeatherlyRobert A.,
来源：世界耳鼻咽喉头颈外科杂志英文版 年份：2021
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