Results 31 to 40 of about 74,953 (270)

Interpreting Recoil For Undergraduate Students

open access: yes, 2011
In this paper, I outline some problems in the students' understanding of the explanation of recoil motion when introduced to them in the context of Newton's third law.
Giancoli Douglas C., Tarek A. Elsayed
core   +1 more source

An Increasing Misalignment Between Crop Distribution and Environmental Resources Under Climate Change in China

open access: yesAdvanced Science, EarlyView.
Climate change reshapes the spatial alignment between crop production and environmental resources. Using multi‐source data and a crop model, integrated climatic, water, and soil endowments for maize and wheat are quantified and compared with harvest distributions.
Zheng'e Su   +13 more
wiley   +1 more source

Desenvolvimento da alface Elisa em diferentes sistemas de irrigação com água residuária Development of the lettuce Elisa in different irrigation systems with wastewater

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2007
Neste trabalho, teve-se como objetivo principal avaliar o uso de água residuária e água de um reservatório superficial, no desenvolvimento da alface (Lactuca sativa L.), cv "Elisa", durante dois ciclos de cultivo. Analisou-se o desenvolvimento da cultura
Delvio Sandri   +2 more
doaj   +1 more source

The Human Resources Program in the Growth Company, 1985 [PDF]

open access: yes, 1985
Perspectives on company leadership for rank and file employees in the sprinkler industry. From Fire Protection Contractor. Vol.8, No12.
Scott, Leonard C
core   +1 more source

Electrostatic Self‐Assembly Induced Nest‐Like MXene Networks on Fabric for Ultra‐Broadband Flexible Absorption

open access: yesAdvanced Science, EarlyView.
In this study, an electrostatically self‐assembled WPU‐MXene@FC flexible fabric constructs a “nest‐like” structure on fibers, building construct MXene multiple loss paths, achieving ultra‐wideband absorption of 25.3–1200 GHz in a thickness of 1.8 mm, while also exhibiting superhydrophobicity, acid and alkali resistance, and bending resistance ...
Min Luo   +7 more
wiley   +1 more source

Mathematical model of foam expansion rate generated in sprinklers

open access: yesMagazine of Civil Engineering
Foam solution discharge is always accompanied by changes in the operating pressure due to different pressure losses along the pipeline in automatic foam extinguishing systems.
Kamluk Andrei   +3 more
doaj   +1 more source

Investigation Into the Electrochemical Performance of Micron‐ and Nanosized Tin in Diglyme and Carbonate Electrolytes in Sodium Ion Batteries

open access: yesAdvanced Energy Materials, EarlyView.
This study compares Sn particles of different sizes in NIBs using carbonate‐ and diglyme‐based electrolytes. Diglyme electrolytes enable stable cycling despite large volume changes, while carbonate electrolytes degrade rapidly, especially with nanoparticles.
Chinnasamy Murugesan   +4 more
wiley   +1 more source

PRECISION IRRIGATION – STRATEGY FOR SUCCESSFUL DEVELOPMENT OF RECLAMATION

open access: yesНаучный журнал Российского НИИ проблем мелиорации, 2020
Purpose: to analyze domestic and foreign experience in the application of systems or individual elements of precision irrigation. The analysis of literary sources, scientific and technical information on the development and use in agricultural production
S. M. Vasilyev   +3 more
doaj   +1 more source

How Competitive Is Myanmar's Rice Sector? A Comparison of Production Costs and Efficiency

open access: yesAgribusiness, EarlyView.
ABSTRACT This paper analyzes the cost competitiveness of rice production in Myanmar by examining production costs, cost efficiency, and the potential effect of improving cost efficiency on the country's global competitiveness. To achieve this, we conduct a comparative analysis of production costs among major rice‐producing countries and estimate the ...
Nandar Aye Chan   +3 more
wiley   +1 more source

. Energy resource efficient designs of small-sized devices for recycled water cooling

open access: yesНанотехнологии в строительстве, 2020
To use natural sources in rational way, plantsof continuous cooling of closed systems of recycling water supply are used. The paper presents designs of small-sized devices for recycling water cooling which are energy resource effective due to twisted ...
Kristina Y. Bondar
doaj   +1 more source

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