Results 51 to 60 of about 12,502,488 (286)
Study on Preparation of Perforated Plate and Biofilm Colonization for Municipal Solid Waste Incineration Fly Ash [PDF]
E3S Web of Conferences, 2021 At present, municipal solid waste incineration (MSWI) fly ash is mainly based on the solidification agent and then landfilled. How to make the fly ash harmless and reuse it will become an important step in the circular economy. In this study, the fly ash
Wang Jing +4 more
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Optimal design of helical reducers for cement equipment [PDF]
MATEC Web of Conferences, 2019 The trends in raising the technical level of multistage helical reducers for drives of cement, metallurgical and other heavy equipment are considered. An interactive method for optimizing the geometrical parameters of reducers with various gear ratios is
Gudov Evgeniy, Lagutin Sergey
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The Role of Momentum Parameters in the Optimal Convergence of Adaptive Polyak's Heavy-ball Methods
CoRR, 2021 The adaptive stochastic gradient descent (SGD) with momentum has been widely adopted in deep learning as well as convex optimization. In practice, the last iterate is commonly used as the final solution to make decisions. However, the available regret analysis and the setting of constant momentum parameters only guarantee the optimal convergence of the
Wei Tao 0002 +3 more
openaire +4 more sources
This golf ball is designed to be used in Martian gravity. As Martian gravity is weaker than Earths, this golf ball feels heavy when held on Earth. It forms part of an ongoing project by Bethany Rigby on Golf and outer space, developing a speculative ...
Rigby, Bethany
core +5 more sources
BioResources, 2023 Heavy metal contamination ruins the ecosystem and water quality. The adsorption method for heavy metal remediation is preferred because of its low cost and high efficiency.
Md Rezaur Rahman +10 more
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BMC Chemistry, 2023 Water contamination has become a global challenge to human survival. Non-biodegradable heavy metal cations and steroid hormones could accumulate in the human body and could result in serious health problems.
Sefiu Olaitan Amusat +4 more
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AlgorithmsThe paper is devoted to the theoretical and numerical analysis of the two-step method, constructed as a modification of Polyak’s heavy ball method with the inclusion of an additional momentum parameter.
Gerasim V. Krivovichev +1 more
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Bulletin of the National Research Centre, 2021 Background Ilmenite and rutile are naturally occurring titanium-bearing heavy minerals. Sri Lanka consists of ilmenite and rutile in placer deposits mainly along the northeast coast. The commercial value of rutile is higher than ilmenite.
T. Dilmi. U. Wijewardhana +1 more
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Reliability-Based Robust Design Optimization with Fourth-Moment Method for Ball Bearing Wear
LubricantsBall bearings operating at low speeds and under heavy loads are susceptible to wear failure, leading to significant economic losses. The existing reliability-based robust design optimization method of the fourth-moment method has high accuracy and does ...
Yanzhong Wang +4 more
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Advanced Engineering Materials, Volume 27, Issue 6, March 2025.ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur +5 more
wiley +1 more source