Results 121 to 130 of about 974,451 (233)

Testing of a new generation horizontal soil sampler

, 2000
Sampling using horizontal directional drilling allows the collection of soil samples from suspected zones located beneath structures and other surface-subsurface obstacles.
Erez N Allouche, Kevin W Biggar, Samuel T Ariaratnam   +2 more
core   +1 more source

A revised classification system of the marronoid clade of spiders (Araneae), based on dense sampling phylogenomics and comparative morphology

Cladistics, EarlyView.
Abstract The marronoid clade is a globally distributed, ecologically diverse group of spiders. It is an important faunal component in both natural and synanthropic environments, and even found in aquatic and extreme habitats such as desert salt flats. The systematics of the marronoid clade has been notoriously unstable due to the widespread character ...
Jonas O. Wolff, Michael B. J. Kelly, Franklyn Cala‐Riquelme, Jacob A. Gorneau, Katherine O. Montana, Helen M. Smith, Phil J. Sirvid, Cor J. Vink, Lauren A. Esposito, Martín J. Ramírez, Charles E. Griswold   +10 more
wiley   +1 more source

Horizontal Directional Drilling-Length Detection Technology While Drilling Based on Bi-Electro-Magnetic Sensing. [PDF]

Sensors (Basel), 2017
Wang Y, Wen G, Chen H.
europepmc   +1 more source

Trajectory design of oblique section in nearly horizontal directional hole in inclined formation in underground coal mine

, 2019
Trajectory design of the near-horizontal directional drilling technology in underground coal mine is one of key aspects to successfully implement the technology.
Zhong, YANG, Haitao, MO, Yongzhe, ZHAO, Yingjie, ZHANG   +3 more
core   +1 more source

The Adaptive Objectives of State‐Owned Enterprises amid Economic and Political Shifts: Evidence from Brazilian Firms, 1973–1993

Journal of Management Studies, EarlyView.
Abstract We theorize how state ownership reweights organizational objectives when political and market conditions shift. Using a mixed‐method, history‐to‐theory design, we examine 160 state‐owned and 132 private Brazilian firms from 1973 to 1993. We argue that two mechanisms – appointment politicization and constituency‐protection salience – alter ...
Paul Ferreira, Sergio G. Lazzarini, Aldo Musacchio   +2 more
wiley   +1 more source

Horizontal drilling in the Lower Glen Rose Formation, Maverick County, Texas

, 1992
This paper presents preliminary results of a project to assess the economic viability of horizontal drilling in the Lower Glen Rose Formation of Maverick County, Texas.
Muncey, G., Drimal, C. E.
core   +1 more source

Considerations in the Application of Horizontal Directional Drilling to Pipeline Construction in the Arctic

, 2011
This paper assesses the current state of the art in horizontal directional drilling (HDD) for pipeline installation, reviews analytical methods associated with HDD pipeline design and installation, and presents concepts useful in the application of HDD ...
John D. Hair
core   +1 more source

For colonization success, should hosts and microbes travel alone, together, or swap partners along the way?

New Phytologist, EarlyView.
Experimental co‐introduction of duckweeds (Lemna japonica) and their microbiome in a common pond. Summary Microbiomes that enhance the performance of host plants are likely to be co‐introduced with their host during colonization because of their intimate association.
Takuji Usui, Jingcheng Yu, Megan E. Frederickson   +2 more
wiley   +1 more source

The roads most traveled: genetic convergence in plant repeated evolution

New Phytologist, EarlyView.
Observation of a genotype–phenotype association in a focal lineage (magnifying lens) provides a starting point for predicting homolog reuse during repeated trait evolution. This review suggests that the likelihood that mutations in homologous genes contribute to similar phenotypes in other lineages depends on both mutational effect stability (MES) and ...
James W. Satterlee
wiley   +1 more source

An AGC kinase cascade regulates ROP signaling for the correct timing of pollen germination

New Phytologist, EarlyView.
Model for PDK1‐AGC1.5/7 kinase cascade function in controlling pollen germination. Summary In flowering plants, the timing of pollen germination is crucial for successful fertilization and an important trait for seed and fruit crops. Environmental factors tightly regulate pollen germination, with germination‐suppressing conditions on the pollen ...
Tong Zhao, Andrea Lepper, Franziska Anzenberger, Sarah Brajkovic, Kim König, Hiromasa Shikata, Yao Xiao, Bernhard Küster, Claus Schwechheimer, Remko Offringa, Philipp Denninger   +10 more
wiley   +1 more source