Results 101 to 110 of about 220,668 (342)
Piercing soft solids: A mechanical theory for needle insertion [PDF]
arXivIn this paper we investigate the mechanical problem of piercing a soft solid body with a needle. This phenomenon is controlled by the critical condition of needle insertion. Needle insertion involves physical and geometrical nonlinearities and a complex failure mechanism.
arxiv
Advanced Functional Materials, EarlyView.Integrating selective RNA shortcut, targeted gene isolation, and micro‐arrayed nanoimaging, the NanoPick‐array platform excels in detecting severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) at just 60 copies µL−1 and accurately differentiating variants at the single‐nucleotide level. It ensures 100% accuracy for samples with cycle threshold (
Zixun Wang +9 more
wiley +1 more source
Needle Biopsy of the Parietal Pleura in Malignant Disease [PDF]
, 1959 P. O. Leggat
openalex +1 more source
Optimal Needle Diameter, Shape, and Path in Autonomous Suturing [PDF]
arXiv, 2019 Needle shape, diameter, and path are critical parameters that directly affect suture depth and tissue trauma in autonomous suturing. This paper presents an optimization-based approach to specify these parameters. Given clinical suturing guidelines, a kinematic model of needle-tissue interaction was developed to quantify suture parameters and ...
arxiv
Advanced Functional Materials, EarlyView.Dynamic linkages are highly attractive in preparing single crystals of covalent organic polymers (COPs). Here, single crystals of two COPs CityU‐15 and CityU‐16 based on reversible B─N bonds are constructed using tetra(4‐pyridyl)tetrathiafulvalene and tetra(4‐pyridyl)porphine as monomers.
Xin Wang +7 more
wiley +1 more source
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2008 The paper informs of N, P, K, Ca and Mg-contents in the selected organs (tissues) of 4-year old Norway spruce (Picea abies /L./ Karst.) and 3-year old European beech (Fagus sylvatica L.) transplants after two years of Mg fertilization (100 kg Mg.ha−1 ...
Eva Palátová +2 more
doaj +1 more source
A NOTE ON ARTIFICIAL PNEUMOTHORAX, With Description of a New Needle [PDF]
, 1920 F. C. Coley
openalex +1 more source
Direct Ink Writing of Conductive Hydrogels
Advanced Functional Materials, EarlyView.This review examines the use of direct ink writing (DIW) for fabricating conductive hydrogels with customizable 3D structures. It outlines the rheological requirements for successful DIW, followed by an exploration of the materials and ink formulations used to impart electronic and/or ionic conductivity to hydrogels while maintaining printability ...
Monica Ho +6 more
wiley +1 more source
HoloInjection: augmented reality support for CT-guided spinal needle injections
Healthcare Technology Letters, 2019 The correct placement of needles is decisive for the success of many minimally-invasive interventions and therapies. These needle insertions are usually only guided by radiological imaging and can benefit from additional navigation support.
Florian Heinrich +4 more
doaj +1 more source
THE VALUE OF NEEDLE BIOPSY IN THE CHEMICAL ESTIMATION OF LIVER LIPIDS IN MAN 1 [PDF]
, 1953 Barbara H. Billing +5 more
openalex +1 more source