Results 41 to 50 of about 3,681 (304)

FEATURES OF CALCULATION OF UNEVEN SWELLING SCREW PILES OF OIL AND GAS PIPELINES IN FROZEN GROUND

Вестник СибАДИ, 2017
The article is devoted to the problem of buckling of helical piles and deformation of the superstructure of oil and gas pipelines under the action of forces of frost heaving of soils.
V. N. Kuznetsova, M. V. Oryol
doaj   +1 more source

Enhancing accuracy and precision of transparent synthetic soil modelling [PDF]

, 2012
Over recent years non-intrusive modelling techniques have been developed to investigate soil-structure interaction problems of increasingly complex geometry.
Allersma H, Finnie IMS, Gill D, Heikkilä J, Heikkilä J, Hird C, Hird C, Iskander M, Konagai K, Lehane B, Liu J, Slama C, Stanier SA, Take W, Taylor R, Welker A, White D   +16 more
core   +1 more source

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

FEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva, Puspa Kunwar, Md Ibnul Rifat Rahman, Joanna Koryo Kwao, Nathan Lehman, Zihan Zhang, Trenton Paul, Claire Cheng, Nicholas Truex, Hui‐Ting Lee, Jun Zhang   +10 more
wiley   +1 more source

Efficiency of RCC piles with helical grooves subjected to axial and lateral loads in cohesionless soil

Cogent Engineering
This paper presents an experimental and numerical investigation of RCC (Reinforced Concrete) piles with helical grooves under axial and lateral loads in cohesionless soil.
Arun Kumar Y. M., Kiran K. Shetty, A. Krishnamoorthy   +2 more
doaj   +1 more source

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

FEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai, Mizuki Seo, Gyath Karadsheh, Fachrur Rizal Mahendra, Máté Á Demény, Ferenc Győry, János András Mótyán, László Fésüs, Endre Kristóf, Rini Arianti   +9 more
wiley   +1 more source

Assessment of Experimental Data and Analytical Method of Helical Pile Capacity Under Tension and Compressive Loading in Dense Sand

Buildings
This study presents the results of axial tension (uplift) and compression tests evaluating the capacity of helical piles installed in Shahriyar dense sand using the UTM apparatus. Thirteen pile load experiments involving single-, double-, or triple-helix
Ali Asgari, Mohammad Ali Arjomand, Mohsen Bagheri, Mehdi Ebadi-Jamkhaneh, Yashar Mostafaei   +4 more
doaj   +1 more source

Revolving rivers in sandpiles: from continuous to intermittent flows

, 2007
In a previous paper [Phys. Rev. Lett. 91, 014501 (2003)], the mechanism of "revolving rivers" for sandpile formation is reported: as a steady stream of dry sand is poured onto a horizontal surface, a pile forms which has a river of sand on one side owing
E. Altshuler, E. Martínez, J. Schmittbuhl, K. J. Måløy, O. Sotolongo-Costa, R. Toussaint, T. Takahashi   +6 more
core   +3 more sources

Development of an inflight centrifuge screw pile installation and loading system [PDF]

, 2016
To simulate the prototype installation behaviour of screw piles at realistic confining stress lev-els, a new installation and loading rig, consisting of two independently-controlled servo-motor drive systems was developed to allow screw pile models to be
Al-Baghdadi, T. A., Brown, M. J., Knappett, J. A.   +2 more
core   +2 more sources

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Numerical modelling of pullout of helical soil nail

Journal of Rock Mechanics and Geotechnical Engineering, 2017
An investigation into the pullout response of helical soil nail using finite element subroutine Plaxis 2D is presented. The numerical modelling of actual pullout response is achieved by axisymmetric and horizontal loading condition. The effect of varying
Saurabh Rawat, Ashok Kumar Gupta
doaj   +1 more source