High-performance hybrid time/frequency-domain topology optimization for large-scale photonics inverse design

Recently, the use of refractory metal silicides as low resistivity, high temperature and high oxidation resistance gate materials in large scale integrated circuits (LSI) has become an important approach in advanced MOS process development (1). This research is a systematic study on the structure and properties of molybdenum silicide thin film and its applicability to high performance LSI fabrication.

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A Recommender System for Inverse Design of Polycarbonates and Polyesters

10.26434/chemrxiv.12679031 ◽

2020 ◽

Author(s):

Nathaniel Park ◽

Dmitry Yu. Zubarev ◽

James L. Hedrick ◽

Vivien Kiyek ◽

Christiaan Corbet ◽

...

Keyword(s):

Ring Opening ◽

High Performance ◽

Recommendation System ◽

Polymeric Materials ◽

Monomer Conversion ◽

Design Strategy ◽

Ring Opening Polymerization ◽

Inverse Design ◽

False Negatives ◽

Accelerate Development

The convergence of artificial intelligence and machine learning with material science holds significant promise to rapidly accelerate development timelines of new high-performance polymeric materials. Within this context, we report an inverse design strategy for polycarbonate and polyester discovery based on a recommendation system that proposes polymerization experiments that are likely to produce materials with targeted properties. Following recommendations of the system driven by the historical ring-opening polymerization results, we carried out experiments targeting specific ranges of monomer conversion and dispersity of the polymers obtained from cyclic lactones and carbonates. The results of the experiments were in close agreement with the recommendation targets with few false negatives or positives obtained for each class.<br>

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Time-Frequency Domain Techniques For Identification Of Power System Transients

i-manager’s Journal on Electrical Engineering ◽

10.26634/jee.5.2.1586 ◽

2011 ◽

Vol 5 (2) ◽

pp. 42-48

Author(s):

Ashwani Kumar Chandel ◽

◽

P. Srikanth ◽

Keyword(s):

Power System ◽

Frequency Domain ◽

Time Frequency ◽

Power System Transients ◽

Frequency Domain Techniques

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RECOMMENDATIONS FOR THE CHOICE OF MILKING INSTALLATIONS IN LOOSE HOUSING SYSTEMS OF COWS

Molochnoe i miasnoe skotovodstvo ◽

10.33943/mms.2020.12.24.001 ◽

2020 ◽

Author(s):

В.В. ГОРДЕЕВ ◽

В.Е. ХАЗАНОВ

Keyword(s):

Dairy Cows ◽

High Performance ◽

Large Scale ◽

Dairy Farms ◽

Economic Indicators ◽

Technical Level ◽

Housing Systems ◽

Working Shift ◽

Technical And Economic Indicators

При выборе типа доильной установки и ее размера необходимо учитывать максимальное планируемое поголовье дойных коров и размер технологической группы, кратность и время одного доения, продолжительность рабочей смены дояров. Анализ технико-экономических показателей наиболее распространенных на сегодняшний день типов доильных установок одинакового технического уровня свидетельствует, что наилучшие удельные показатели имеет установка типа «Карусель» (1), а установка типа «Елочка» (2) требует более высоких затрат труда и средств. Установка «Параллель» (3) занимает промежуточное положение. Из анализа пропускной способности и количества необходимых операторов: установка 2 рекомендована для ферм с поголовьем дойного стада до 600 голов, 3 — не более 1200 дойных коров, 1 — более 1200 дойных коров. «Карусель» — наиболее рациональный, высокопроизводительный, легко автоматизируемый и, следовательно, перспективный способ доения в залах, особенно для крупных молочных ферм. The choice of the proper type and size of milking installations needs to take into account the maximum planned number of dairy cows, the size of a technological group, the number of milkings per day, and the duration of one milking and the operator's working shift. The analysis of technical and economic indicators of currently most common types of milking machines of the same technical level revealed that the Carousel installation had the best specific indicators while the Herringbone installation featured higher labour inputs and cash costs. The Parallel installation was found somewhere in between. In terms of the throughput and the required number of operators Herringbone is recommended for farms with up to 600 dairy cows, Parallel — below 1200 dairy cows, Carousel — above 1200 dairy cows. Carousel was found the most practical, high-performance, easily automated and, therefore, promising milking system for milking parlours, especially on the large-scale dairy farms.

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