Results 31 to 40 of about 5,725,678 (305)

Surface accuracy achieved by upsetting of preforms generated by laser rod end melting

open access: yesMATEC Web of Conferences, 2015
Cold forming generally allows the reproduction of parts with a high production rate and low waste of material. For this reason, many small parts for example of the body of a smartphone undergo at least one forming operation during their fabrication, e.g.
Brüning Heiko, Vollertsen Frank
doaj   +1 more source

Steroids from Marine-Derived Fungi: Evaluation of Antiproliferative and Antimicrobial Activities of Eburicol

open access: yesMarine Drugs, 2019
The most common sterol in fungi is ergosterol, which has frequently been investigated in human pathogenic fungal strains. This sterol, and others isolated from fungal strains, has also demonstrated cytotoxicity against cancer cell lines and antimicrobial
Ana Camila Dos Santos Dias   +10 more
doaj   +1 more source

Applications of Digital Holography: From Microscopy to 3D-Television [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2012
The paper gives an overview of the applications of digital holography based on the one hand on CCD-recording, computer storage, and numerical reconstruction of the wave fields, and on the other hand on numerical calculation of computer generated ...
Kreis T.
doaj   +1 more source

Integrated supplier management system a case study: PARL Bone Mills [PDF]

open access: yes, 2007
Effective supplier management is vital for successful business operation of any business organization. Supplier management is a technique and continuous activity that used to control and make decision about supplier management.
Rahman Bias, Tanvi
core  

Effects of Cancer Treatment on Somatosensory and Nociceptive Processing in Children and Adolescents: A Systematic Review

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Chemotherapy‐induced peripheral neuropathy remains a major complication in pediatric cancer, with disrupted somatosensory and nociceptive processing being a key aspect. This review synthesizes empirical studies on alterations in somatosensory and nociceptive processing in children and adolescents with cancer.
Julia Schweiger   +4 more
wiley   +1 more source

Determining Absorptivity Variations of Multiple Laser Beam Treatments of Stainless Steel Sheets

open access: yesJournal of Manufacturing and Materials Processing, 2018
The absorptivity of laser radiation of metals is investigated in several studies. Therefore, absorption coefficients depending on temperature or roughness are known.
Helge Kügler, Frank Vollertsen
doaj   +1 more source

An Experimental Approach for the Direct Measurement of Temperatures in the Vicinity of the Keyhole Front Wall during Deep-Penetration Laser Welding

open access: yesApplied Sciences, 2020
The formation of defects such as pores during deep-penetration laser welding processes is governed by the melt pool dynamics and the stability of the vapor capillary, also referred to as the keyhole.
Ronald Pordzik, Peer Woizeschke
doaj   +1 more source

Molecular Bias

open access: yesEuropean Journal of Epidemiology, 2005
Bias is ubiquitous in research. The advent of the molecular era provides a unique opportunity to study the consequences of bias with large-scale empirical evidence accumulated in the massive data produced by the current discovery-oriented scientific effort, rather than just with theoretical speculations and constructs.
openaire   +3 more sources

Shot noise and conductivity at high bias in bilayer graphene: Signatures of electron-optical phonon coupling [PDF]

open access: yes, 2011
We have studied electronic conductivity and shot noise of bilayer graphene (BLG) sheets at high bias voltages and low bath temperature $T_0=4.2$ K. As a function of bias, we find initially an increase of the differential conductivity, which we attribute ...
Danneau, R.   +7 more
core   +3 more sources

Efficacy and Tolerability of Topotecan/Cyclophosphamide/Dinutuximab in Relapsed and Refractory High‐Risk Neuroblastoma: A Multi‐Institutional Retrospective Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Chemoimmunotherapy with irinotecan, temozolomide, and dinutuximab (I/T/DIN) has emerged as first‐line therapy for relapsed/refractory (r/r) high‐risk neuroblastoma (HRNB) in North America. Topotecan and cyclophosphamide (T/C) are often used in combination with dinutuximab in the setting of lack of response, progression, or incomplete ...
Benjamin J. Lerman   +17 more
wiley   +1 more source

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