Results 181 to 190 of about 59,397 (305)

Liquid Jetting‐Based Miniature Robotic Navigation in Confined Fluidic Spaces

open access: yesAdvanced Intelligent Systems, EarlyView.
We introduce a new class of liquid‐jetting‐based miniature robots (JetBots) ranging in size from mm‐to‐cm, featuring a unified approach in design, fabrication, and actuation. They demonstrate fast locomotion (30.3 cm/s), rapid steering (648.8°/s), and diverse functions, such as puncturing soft materials and unlimited cargo sampling and delivery, paving
Debasish Roy, Tianlu Wang
wiley   +1 more source

Permeability of Moulding Sands on Heating.

open access: yesJournal of the Society of Mechanical Engineers, 1937
openaire   +2 more sources

On the Mechanical Treatment of Moulding Sand [PDF]

open access: yesProceedings of the Institution of Mechanical Engineers, 1891
openaire   +1 more source

Uncovering renewable energy policy impact channels on land values, the local farm structure, and farmland heterogeneity

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Germany's Renewable Energy Sources Act (REA), enacted in 2000 and subsequently amended, subsidized national renewable energy production with fixed feed‐in tariffs for renewable energy sources (RE) from wind, solar, and biogas. Empirical studies suggest that the policy was creating windfall effects for landowners and attribute farmland use ...
Lars Isenhardt   +6 more
wiley   +1 more source

Sandbox test setups for evaluating the performance of borehole heat exchangers: a review. [PDF]

open access: yesInt J Coal Sci Technol
Zhao J   +6 more
europepmc   +1 more source

Climate and seed mass drive intraspecific variation in seed longevity in storage

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Conservation seed banks are essential for ex situ plant conservation, but stored seeds slowly deteriorate and lose viability. Seed longevity in storage is determined by the initial seed viability and the rate of seed viability loss. The rate of seed viability loss in storage varies between species and possibly between populations or ...
Lea Klepka   +2 more
wiley   +1 more source

Cow-dung stabilised compressed earth blocks: a mechanistic approach to understand its water resistance behaviour. [PDF]

open access: yesMater Struct
Kulshreshtha Y   +5 more
europepmc   +1 more source

Civilian Occupational Exposure to Vapors, Gas, Dust, or Fumes and Respiratory Health Among United States Military Veterans

open access: yesAmerican Journal of Industrial Medicine, EarlyView.
ABSTRACT Background We investigated associations of self‐reported and job exposure matrix (JEM) assigned civilian occupational exposure to vapors, gas, dust, or fumes (VGDF) with respiratory symptoms among previously deployed US Veterans. Methods An interviewer‐administered questionnaire ascertained self‐reported civilian occupational VGDF exposure.
Sahra Mohazzab‐Hosseinian   +14 more
wiley   +1 more source

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