نتایج جستجو برای: laser ablation of metals in liquids
تعداد نتایج: 24465270 فیلتر نتایج به سال:
Due to the abundance of nanomaterials in medical devices and everyday products, toxicological effects related to nanoparticles released from these materials, e.g., by mechanical wear, are a growing matter of concern. Unfortunately, appropriate nanoparticles required for systematic toxicological evaluation of these materials are still lacking. Here, the ubiquitous presence of surface ligands, re...
abstract the present study was conducted to examine the effect of proficiency on students interaction while carrying out the grammar-based task(s) in collaboration. in particular, the study examines whether the level of proficiency affects the learners’ focus of attention to grammatical and lexical features. the study takes a further step and examines whether there is any difference in the use...
A picosecond laser has been used to establish the material removal rate of metals. Varied processing parameters include laser power, pulse frequency and scanning velocity. The laser beam was manipulated using a galvanometric scan head with a 100 mm focusing optic. Maximum power of the laser in the IR was 2 W and 700 mW in the UV. Scanning velocities were varied between 100 to 800 mm/s. Material...
abstract in written mode of language, metadiscourse markers are used commonly to help writers in general and academic writers in particular to produce coherent and professional texts. the purpose of the present study was to compare introduction sections of applied linguistics and physics articles regarding their use of interactive and interactional metadiscourse markers based on the model pro...
Laser ablation has many uses in industry, including laser drilling and thin-film deposition. However, the underpinning physics of not been fully elucidated. In particular, differences behaviour plasma plumes ablated from different materials, which material properties are related to plume characteristics, require further study. This paper presents results modelling photocatalytic materials using...
Introduction: Laser interstitial thermotherapy (LITT) is an internal ablation therapy method consisting of a percutaneous or intraoperative insertion of laser fibers directly into the liver tumor with maximum diameter of 5 cm. In this treatment method, there isn’t any general information about the relationship between increasing the exposure power, coagulation and carboniza...
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