Results 61 to 70 of about 63,638 (199)

Single Versus Double Screw Extrusion: Impact on Mechanical Performance and Crack Resistance for a Virgin, Recycled, and Blended Polypropylene

open access: yesPolymer Engineering &Science, EarlyView.
Schematic overview of the study approach and key findings. ABSTRACT To evaluate the influence of extrusion on material performance, three processing methods, single extrusion (1x Ex), double extrusion (2x Ex), and double screw compounding (C), were investigated for virgin polypropylene (vPP), recycled PP (rPP), and a blend containing 10% rPP (rPP10 ...
J. Pötzlbauer   +8 more
wiley   +1 more source

Memo: Charles M. Haar to Joseph A. Califano, Jr. "Report of the Taskforce on New Towns," October 16, 1967

open access: yes, 2006
Textual: memo, copy with red pencil marks; 11” x 8.5” (27.9 cm x 21.6 cm)Memo from Charles M. Haar, Assistant Secretary for Metropolitan Develpment, to Joseph A.
Haar, Charles M.
core   +1 more source

Wavelet covariance approach to measure convective boundary‐layer structure

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
This study introduces a wavelet‐based framework that applies the Haar discrete wavelet transform (DWT) to radiosonde profiles of potential temperature and water vapor mixing ratio for diagnosing convective boundary‐layer (CBL) structure. The method objectively identifies key CBL parameters, including the surface‐layer height, entrainment zone depth ...
Song‐Lak Kang   +2 more
wiley   +1 more source

Complications and outcome of cats with congenital extrahepatic portosystemic shunts treated with thin film: Thirty‐four cases (2008‐2017)

open access: yesJournal of Veterinary Internal Medicine, 2020
Background Congenital extrahepatic portosystemic shunts (CEHPSS) are rare in cats. Outcome after attenuation of CEHPSS with thin film has been described in a small number of cases.
Paula Valiente   +6 more
doaj   +1 more source

The benefit of neighborhood methods for the assimilation of cloud‐affected radiances evaluated in observing‐system simulation experiments

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
Neighborhood methods are commonly used in verification to avoid the double‐penalty issue. This study evaluates such methods for the assimilation of infrared and visible satellite observations and extends them to multiscale assimilation. Moreover, a novel technique is tested aimed at mitigating complex biases and structural errors in real‐world model ...
Lukas Kugler   +4 more
wiley   +1 more source

The Haar Wavelet Approximation for the Two-Dimensional Time-Fractional Neuronal Dynamics Model

open access: yesFractal and Fractional
In this paper, we developed and constructed the Haar wavelet (HW) for the two-dimensional (2D) time-fractional neuronal dynamics model (TFNDM) with the dynamical electro-diffusion behaviour of ions in nerve cells. The Haar wavelet method is considered in
Tao Liu, Xuehua Yang
doaj   +1 more source

Frank-ter Haar syndrome associated with sagittal craniosynostosis and raised intracranial pressure

open access: yesBMC Medical Genetics, 2012
Background Frank-ter Haar syndrome is a rare disorder associated with skeletal, cardiac, ocular and craniofacial features including hypertelorism and brachycephaly.
Bendon Charlotte L   +7 more
doaj   +1 more source

Approaches for molecular characterization of modified biopolymers [PDF]

open access: yes, 2011
In this thesis, research on the molecular characterization of products obtained after structure modification of oligosaccharides, starch, model peptides, and bovine α-lactalbumin is described.
ter Haar, R., Haar, R., ter
core  

Hexapod Locomotion Across Structured and Unstructured Terrains: A Data‐Driven Review of Modeling, Control, and Validation

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT The design of a hexapod is complex and requires integration between kinematic models, control systems, and sensing. Existing literature has reviewed these sub‐systems in isolation. Since 2021, there has been no review of the field despite significant advancements in soft soil, lunar traversal, and artificial intelligence.
Akhil Rampersad, Bashan Naidoo
wiley   +1 more source

Diary Entry of Geisje Vander Haar Visscher [PDF]

open access: yes
Geisje Vander Haar Visscher\u27s diary contains an entry on page 13, in which she made a reference to both Albertus C. Van Raalte and to Mrs. Christina Van Raalte. An entry for 1849 on p. 10 said that the Van Raaltes often came to visit the Vander Haars.
Jalving, Clarence   +1 more
core   +1 more source

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