Results 31 to 40 of about 1,482,204 (350)

Preparation and characterization of a novel emphatically charged strengthened chitosan composite nanofiltration membrane [PDF]

open access: yesMATEC Web of Conferences, 2022
In this paper, chitosan was grafted with acrylic acid and positively charged elements, and a series of reinforced nanofiltration membranes were prepared by coating modified chitosan polymer with polysulfone ultrafiltration membrane as support.
Mu Tao   +4 more
doaj   +1 more source

Development of an Intelligent Inspection System Based on YOLOv7 for Real-Time Detection of Foreign Materials in Fresh-Cut Vegetables

open access: yesAgriculture
Ensuring food safety in fresh-cut vegetables is essential due to the frequent presence of foreign material (FM) that threatens consumer health and product quality.
Hary Kurniawan   +7 more
doaj   +1 more source

The spinal needle as a carrier of foreign material [PDF]

open access: yesCanadian Anaesthetists’ Society Journal, 1968
When used in performing a spinal tap, the conventional 22-gauge spinal needle produces cores of skin or threads of epidermis in 75 per cent of cases. Most of the fresh cores are sucked into the syringe during the test aspiration of the spinal fluid, and some of them may be re-injected into the subarachnoid space with the potential hazards of septic or ...
openaire   +2 more sources

The interaction of polymer surfaces with blood [PDF]

open access: yes, 1979
Some general aspects of the interaction of foreign materials with blood are summarized. The role of protein adsorption in this interaction is briefly discussed.
Beugeling, T.
core   +3 more sources

Preparation of Foreign Language Graduates to Teach English for Specific Purposes at the Academic Level

open access: yesLubelski Rocznik Pedagogiczny, 2023
Introduction: Contemporarily it is not enough to be able to use English solely for general purposes. Thus, foreign language teachers have to obtain a great deal of competences, among which some researchers point to the skills and knowledge from the ...
Patrycja Małgorzata Linkiewicz
doaj   +1 more source

Penetrant Injury of the Nose With a Foreign Material

open access: yesJournal of Craniofacial Surgery, 2013
Frontal and orbital fractures are common fractures in children and teenagers. Rare cases of spontaneous resolution of depressed frontal fractures, referred to as ‘‘ping-pong’’ or ‘‘greenstick’’ fractures, with inward buckling of the bone surface without loss of bone continuity have been reported in infants and younger children.
Duran, Arif   +5 more
openaire   +2 more sources

Foreign Body in the Oral Cavity Mimicking a Benign Connective Tissue Tumor

open access: yesCase Reports in Dentistry, 2013
Foreign bodies may be embedded in the oral cavity either by traumatic injury or iatrogenically. The commonly encountered iatrogenic foreign bodies are restorative materials like amalgam, obturation materials, broken instruments, needles, and impression ...
Divya Puliyel   +3 more
doaj   +1 more source

AUDIO-VISUAL TEXTS AND INTERCULTURAL APPROACH IN TEACHING GERMAN AS A FOREIGN LANGUAGE

open access: yesNovìtnâ Osvìta, 2015
This article is a brief description of the research of the role of video in the study of intercultural differences on the lessons of German as a foreign language. The purpose and relevance of the research is determined due to the need to update teaching
V. M. Bilytska
doaj   +1 more source

An Experience-Connected e-Learning System with a Personalization Mechanism for Learners’ Situations and Preferences [PDF]

open access: yes, 2011
This paper presents an “experience-connected” e- Learning system that facilitates users to learn practical skills of foreign language by associating knowledge and daily-life experiences.
Nagato , KASAKI   +2 more
core  

Removing Oxide Layers and Retaining Oxide‐Free Steel Surfaces by Polishing in Oxygen‐Free Atmosphere

open access: yesAdvanced Engineering Materials, EarlyView.
In this study, the efficacy of wet mechanical polishing under an oxygen‐free atmosphere for deoxidation and the retention of an oxide‐free steel surface are elucidated using X‐ray photoelectron spectroscopy. The methodology proved successful; however, the results were highly dependent on the preparation of the solvents used to clean the samples after ...
Friedrich Bürger   +2 more
wiley   +1 more source

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