Results 41 to 50 of about 25,154 (301)

Waste and Pollution in the Ancient Roman Empire

open access: yesJournal of Landscape Ecology, 2016
This article describes select examples of waste management from the Roman Empire (27 BCE to 365 CE). Classical written sources and anthropological and archeological literature were studied.
Havlíček Filip, Morcinek Miroslav
doaj   +1 more source

Ecological and sanitary safety of water supply sources of the Kyrgyz Republic [PDF]

open access: yesBIO Web of Conferences
This article addresses the issue of environmental safety as well as the quality of drinking water and wastewater treatment. The problem of supplying clean water and sewage of settlements and cities of the Kyrgyz Republic is raised.
Karimov Tashmuhamed Khalmukhamedovich   +2 more
doaj   +1 more source

THE EFFICIENCY EQUATION FOR WATER AND WASTEWATER OPERATORS IN ROMANIA [PDF]

open access: yesAnalele Universităţii Constantin Brâncuşi din Târgu Jiu : Seria Economie, 2021
Increasing and modeling efficiency is a very important aspect related to public water and sewerage utilities. An important element of measuring the efficiency of water companies is the amount of profit obtained.
BAKÓ KINGA-ERZSÉBET   +1 more
doaj  

Bioinspired Soft‐Skeleton Robotics With Cooperative Shape Transformation and Stiffness Adaptation

open access: yesAdvanced Robotics Research, EarlyView.
A bioinspired soft‐skeleton robot that integrates variable‐stiffness chain skeletons into a soft textile skin is developed. The chain skeletons are highly flexible initially but can stiffen upon pneumatic actuation, enabling large deformation and enhanced load‐bearing capacity.
Mengyuan Niu   +5 more
wiley   +1 more source

Model assessment of the water utilities transition to service quality criteria

open access: yesВодное хозяйство России: проблемы, технологии, управление, 2022
Th e paper analyzes consequences of the possible transition for Russian water supply and sewerage enterprises from quantitative efficiency criteria to qualitative ones.
Аleksandr А. Tskhai
doaj   +1 more source

Functional Fibers in Soft Robotics: Advances in Material, Structural, and Systemic Tactics

open access: yesAdvanced Robotics Research, EarlyView.
Fiber‐form robotic systems offer a scalable pathway toward embodied intelligence in soft robotics. This review surveys functional fibers as material, structural, and systemic elements, highlighting advances in responsive materials, architectural programing, and fabrication strategies.
Joonhee Won   +5 more
wiley   +1 more source

The influence of winter road maintenance on the presence of chlorides in wastewater entering small treatment plants [PDF]

open access: yesJournal of Water and Land Development
During the appearance of the first snowfall, there is a revival of discussion on effective methods of protecting road surfaces and sidewalks against icing.
Grzegorz B. Kaczor   +2 more
doaj   +1 more source

Comparison of the price level of the water and sewerage charge rates and macroeconomic indicators in the Czech Republic

open access: yesPrzegląd Naukowy Inżynieria i Kształtowanie Środowiska, 2022
This article focused on comparing the development of the price level of the water and sewerage charge rates in the regions of the Czech Republic to the development of macroeconomic indicators expressing the performance of the individual region.
Eva Vítková   +2 more
doaj   +1 more source

Project Report on Sanitary Sewerage Facilities

open access: yes, 1971
This project report has developed preliminary designs of sanitary sewerage facilities necessary to convey and treat the sewage flows from the Township of Pequannock, the Borough of Lincoln Park, and the Borough of Fairfield.

core   +1 more source

Interfacial Water Coordination on Ruthenium Oxide Nanoparticles Confined Within Covalent Organic Framework and Its Effect on Electrochemical Nitrate Reduction

open access: yesAdvanced Science, EarlyView.
We demonstrate how oxygen‐deficient ruthenium oxide (RuOx) nanoparticles confined within covalent organic framework achieve highly efficient nitrate‐to‐ammonia conversion. Strong interaction between RuOx nanoparticles and COF results in modified interfacial hydrogen‐bond water network and adsorption of nitrogenous intermediates.
Yun Li   +6 more
wiley   +1 more source

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