Results 71 to 80 of about 26,584 (256)

The Motion Decoupled Delivery System: A New Deployment System for Downhole Tools is Tested at the New Jersey Margin [PDF]

open access: yesScientific Drilling, 2013
The Motion Decoupled Hydraulic Delivery System (MDHDS) is a new downhole tool delivery system that is deployed by wireline and uses drillstring pressure to advance a penetrometer (or other downhole tool) into the formation at the bottom of offshore ...
P. B. Flemings   +10 more
doaj   +1 more source

Discussion of ‘‘Re-Examination of Undrained Strength at Atterberg Limits Water Contents’’ by H.B. Nagaraj, A. Sridharan & H.M. Mallikarjuna [PDF]

open access: yes, 2012
Having recently investigated soil strength at the Atterberg limits, the discussers read the paper by Nagaraj et al. (2012) with interest. Whilst some of the conclusions of the paper concur with those of our own work, there are other areas in which we ...
Haigh, S K, Vardanega, P J
core   +2 more sources

The Zma‐miRNA319‐ZmMYB74 Module Regulates Maize Resistance to Stalk Rot Disease by Modulating Lignin Deposition

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT Stalk rot, primarily caused by Fusarium graminearum (Fg) and Pythium inflatum (Pi), is a major maize disease responsible for significant yield losses. The molecular mechanisms governing defence against these pathogens remain poorly understood. To uncover key miRNAs and their regulatory genes, small RNA, degradome, and transcriptome sequencing ...
Yanyong Cao   +16 more
wiley   +1 more source

Enriching Earth Science Education with Direct and Proximal Remote Sensing of Soil Using a Mobile Geospatial Application

open access: yesEarth
Earth science education can be enriched by adding technological knowledge to enable monitoring human earth impacts by using soil science as an example.
Elena A. Mikhailova   +4 more
doaj   +1 more source

Instrumented Impact Cone Penetrometer [PDF]

open access: yesCanadian Geotechnical Journal, 1973
The present paper describes the development of an instrumented impact cone penetrometer for a direct measurement of in situ strength properties of a soil target. The developed penetrometer, in addition to providing acceleration signatures (as obtained by previous investigators), is capable of recording cone thrust and local side friction ...
Umesh Dayal, John H. Allen
openaire   +1 more source

Development of a Cone Penetrometer for Measuring Spectral Characteristics of Soils in Situ [PDF]

open access: yes, 1993
A patent was recently granted to the U.S. Army for an adaptation of a soil cone penetrometer that can be used to measure the spectral characteristics (fluorescence or reflectance) of soils adjacent to the penetrometer rod. The system can use a variety of
Lee, Landris T., Jr., Malone, Philip G.
core   +1 more source

Portable penetrometer for agricultural soil: sensitivity test to identify critical compaction depth

open access: yesRevista Brasileira de Ciência do Solo, 2010
To express the negative effects of soil compaction, some researchers use critical values for soil mechanical strength that severely impair plant growth. The aim of this study was to identify this critical compaction depth, to test the functionality of a ...
João Carlos Medeiros   +2 more
doaj   +1 more source

Restoring off‐highway vehicle trails in flood‐prone and riparian forests using balsam poplar cuttings

open access: yesRestoration Ecology, EarlyView.
Abstract Introduction Recreational off‐highway vehicle (OHV) use can cause significant disturbance to natural areas. The use of local balsam poplar (Populus balsamifera L.) cuttings may be a solution to supply native plant material for the restoration of flood‐prone and riparian environments.
Raiany Dias de Andrade Silva   +3 more
wiley   +1 more source

Oviposition and larval establishment of three ‘generalist’ noctuids on Capsicum annuum

open access: yesAustral Entomology, Volume 65, Issue 1, February 2026.
Abstract Understanding the oviposition and foraging behaviour of pestiferous lepidopterans on their economically important food plants guides the development of effective pest management tactics. Here, we examined the oviposition behaviour and larval establishment of three noctuid species on a single crop—capsicum (Capsicum annuum).
Trevor M. Volp   +3 more
wiley   +1 more source

Self-recording portable soil penetrometer [PDF]

open access: yes, 1973
A lightweight portable penetrometer for testing soil characteristics is described. The penetrometer is composed of a handle, data recording, and probe components detachably joined together.
Campbell, G. E.   +3 more
core   +1 more source

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