Results 91 to 100 of about 853,182 (303)

NUTRITION AND THE ECONOMICS OF SWINE MANAGEMENT [PDF]

open access: yes
Current methods of formulating animal rations lead to excess nutrient excretion which can potentially lead to excess manure nutrients and an increase in economic costs. These methods do not recognize the impact of diminishing returns. The objective is to
Boland, Michael A.   +2 more
core   +1 more source

Novel cost-effective method of laparoscopic feeding-jejunostomy

open access: yesJournal of Minimal Access Surgery, 2009
A feeding jejunostomy tube placement is required for entral feeding in a variety of clinical scenarios. It offers an advantage over gastrostomies by eliminating the risk of aspiration. Standard described laparoscopic methods require special instrumentation and expensive custom-made tubes.
Mistry, Rajesh C.   +3 more
openaire   +3 more sources

From Waste to Value: Conversion of Calcium Sulfate to Vaterite via Carbon Capture and Storage

open access: yesAdvanced Functional Materials, EarlyView.
This study introduces a new concept for carbon management that relies on the carbonation of industrial gypsum waste and yields phase‐pure vaterite at ambient conditions without any additives. The obtained vaterite is further shown to be a reactive material that develops compressive strength in aqueous suspensions like conventional cements.
Carlos Pimentel   +4 more
wiley   +1 more source

Long-Term and Global Tradeoffs between Bio-Energy, Feed, and Food [PDF]

open access: yes
Projections of U.S. ethanol production and its impacts on planted acreage, crop prices, livestock production and prices, trade, and retail food costs are presented under the assumption that current tax credits and trade policies are maintained.
Babcock, Bruce A.   +8 more
core   +1 more source

THE DEPENDENCE OF PIGLET PRODUCTIVITY ON THE METHOD OF FEED PREPARATION AND THE FEEDING OF PIGLETS [PDF]

open access: yesScientific Papers Series : Management, Economic Engineering in Agriculture and Rural Development
The article investigated the productivity of piglets and the efficiency of their rearing in relation to the type of feed preparation and the type of feeding, and the influence of these factors on growth intensity, piglet survival rate, feed costs and ...
Mykola POVOD   +6 more
doaj  

Synchronized Electro‐Chromo‐Emissive Devices Using a Mixed Ionic‐Electronic Conductive Layer for XR Applications

open access: yesAdvanced Functional Materials, EarlyView.
A single cell type Electro‐chromo‐emissive (ECECL) device integrating synchronized electrochromic (EC) and electrochemiluminescent (ECL) functions is developed using a mixed ionic‐electronic conductor (MIEC). A MIEC layer reduces ionic/electronic resistance, enabling ultrafast switching and enhanced optical contrast.
Hwandong Jang   +5 more
wiley   +1 more source

Revisiting the Merit-Order Effect of Renewable Energy Sources

open access: yes, 2014
An on-going debate in the energy economics and power market community has raised the question if energy-only power markets are increasingly failing due to growing feed-in shares from subsidized renewable energy sources (RES). The short answer to this is:
Andersson, Göran   +2 more
core   +1 more source

MANAJEMEN PADANG PENGGEMBALAAN DI BPTUHPT PADANG MENGATAS

open access: yesPastura: Journal of Tropical Forage Science, 2019
Extensive raising of livestock, especially cattle is still faced with problems of quality and a continuous supply of green feed. Nearly 70% of production costs and maintenance expenditure sourced from cattle feed.
Yoselanda Marta
doaj   +1 more source

Solar Heating Enhanced Selective Recovery of Metal Ions Through Flowing Electrodes Enabled by Hybrid Carbon Nanostructures

open access: yesAdvanced Functional Materials, EarlyView.
A new electrochemical system based on a microporous hybrid of carbon nanoplatelets and nanotubes to selectively capture Ni2+ from wastewater is constructed. The system temperature rises rapidly when irradiated with sunlight, which enhances the Ni2+ removal rate by 250% and the selectivity by 53%, and the energy consumption is also reduced by 51 ...
Ziquan Wang   +11 more
wiley   +1 more source

Managing Dairy Heifer Growth Investment [PDF]

open access: yes
Accelerated prepubertal growth rates can lower heifer raising costs but may put heifers at risk for impaired mammary development and have been found to be detrimental decreased to milk production in the first lactation.
Hadrich, Joleen C.   +2 more
core   +1 more source

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