Research and development to bring autonomous vehicles on the roads has been intensified these years. Among the various technologies currently studied, automotive lidars are a fast-growing one due to their obvious accuracy to detect a wide range of objects at distances up to a few hundreds of meters in various weather conditions. First commercialized devices …
This paper proposes a state-of-the-art laser adhesion test. It consists of testing material interfaces with laser-driven shock wave. Since the first demonstration in the 1980s by Vossen, many studies and developments have been done. This paper presents recent experiments and developments on the basic physics involved.
Laser-based LiDAR sensors can provide highly accurate scans of three-dimensional spaces, and as such are crucial in applications ranging from autonomous vehicles to geological mapping technologies ...
A powerful technique for interference fringe analysis uses tunable light sources. Originally developed to solve the problem of phase shifting in large aperture systems, the technique has evolved to the simultaneous measurement of multiple surfaces and optical thickness of optical assemblies and components. Here we review the principles and current state of …
A state-of-the-art direct metal laser sintering of Ti6Al4V and AlSi10Mg alloys: Surface roughness, tensile strength, fatigue strength and microstructure ... mini specimen and a set of rotating bending specimens of DMLS Ti6Al4V after heat treatment and surfaces in the as-built state [54]; with permission from Elsevier publisher. Kim et al ...
The high-energy laser systems that are finding military applications are based on solid-state lasers that use special crystals to convert the input electrical energy into photons.
Precision Metal Products LLC. is proud to provide precision laser cutting for the creation of custom metal parts from sheet metal and plate. Our state of the art Trumpf TruLaser 2030 fiber 2D laser cutting can make thousands of cuts in various types of metal per hour, with every cut from the first to the last having the same level of precision. With this laser, …
Laser Ablation Molecular Isotopic Spectrometry (LAMIS) is a direct and rapid technique that measures optical emission in laser-induced plasmas for isotopic analysis. LAMIS exploits relatively large isotope shifts in spectra of transient molecular isotopologues formed in laser ablation plasma. LAMIS can be pe JAAS 30th anniversary
Actual state-of-the-art of electron beam powder bed fusion. Zongwen Fu a Department of Materials Science, Chair of Materials Science and Engineering ... Compared to other additive manufacturing approaches, e.g., the more widely used laser powder bed fusion, EB-PBF shows various unique features and advantages for processing high …
TALC uses a very specific wavelength of light (1.907 μm) because it is strongly absorbed by ambient water vapor and is easily produced via thulium fiber laser. Our technique provides directionality and localization of the sound by using a rotating mirror, or acousto-optic modulator, to sweep the laser beam in an arc.
2. Overview of Studies. Fourteen publications on SLS applied to the pharmaceutical research have been identified on the MEDLINE ® database from 2017 to 2020. The objectives, used materials, dimensions of the printlets and drug release profiles for each study are presented in Table 1.The majority of the studies …
Interest in the laser heat treatment process has grown tremendously in the past few years. Highly localized, high heating and cooling rates inherent in laser processing are found to be beneficial to improve hardness, wear, and fatigue properties of many steels and cast irons. Development of reliable high-power CO2 lasers in the past decade has …
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A state-of-the-art digital factory integrating digital twin for laser additive and subtractive manufacturing processes - Author: Usman Tariq, Ranjit Joy, Sung-Heng Wu, Muhammad Arif Mahmood, Asad Waqar Malik, Frank Liou ... processes. The current shortcomings and outlook of the DF also have been highlighted. A DF is a state-of-the-art ...
Tumors significantly impact individuals' physical well-being and quality of life. With the ongoing advancements in optical technology, information technology, robotic technology, etc., laser technology is being increasingly utilized in the field of tumor treatment, and laser ablation (LA) of tumors …
As the main raw material for ceramics and coatings, black talc contains high contents of organic carbon and quartz, which deteriorates the whiteness and purity of calcined talc. In this work, calcined talc powders with high whiteness and purity have been prepared by the milling and reactive calcination of black talc with magnesium …
The fiber laser is a variation on the standard solid-state laser, with the medium being a clad fiber rather than a rod, a slab, or a disk. Laser light is emitted by a dopant in the central core of the fiber, and the core structure can range from simple to fairly complex. A key factor for fiber lasers is that the fiber has a large surface-to-volume ratio …
of research—laser-induced modification of diamond bulk by near-IR or visible laser pulses focused at a specified point—has been actively developed. On the one hand, laser modification of diamond bulk is con-sidered as controlled formation of peculiar defects in the bulk by low-intensity laser pulses (below the graphitization threshold) [8 ...
In recent years, LASER has been introduced as a minimally invasive treatment for a broad range of vaginal and vulvar symptoms and diseases. However, the efficacy and safety of vaginal and vulvar LASER has continuously been questioned. ... urinary incontinence and lichen sclerosus: A state-of-the-art review Acta Obstet Gynecol Scand. 2022 Apr 28 ...
ciated laser-material interaction regimes are reported. Both the state of the art and new insights mainly focus on system-atic approaches addressed to the solution of representative cleaning problems, including stone and metal artifacts along with wall and easel paintings. The innovative part is en-
An overview of the current state-of-the-art and potential evolution of megawatt class high-energy laser weapons. Implications for space vehicles in or beyond earth orbit will be addressed.
Talc is a soft and inert mineral with a high capability to absorb water and organic matter. It is used in a wide range of products, including paper, plastics, paint, rubber, agricultural products, pharmaceuticals, and cosmetics [].Because of its capacity to bind water, talc powder has been used in baby powders and feminine hygiene products …
The paper depicts the in-depth review of laser surface texturing on engineering materials considering its application in the field of biomedical applications. A sufficient literature survey has been done and the important aspects have been critically reviewed. The effect of laser surface texturing on various parameters of the biomedical application has been …
Waterjet machining has attracted great attention in the conditions of hard-to-machine materials, microstructures, or complicated industrial components, and it has become well-established in all major areas of theoretical researches and already been found across the broad spectrum of technical application areas especially in the specific …
A review of surface texturing, and more specifically laser surface texturing (LST), has revealed the potential of this technology in improving tribological performance of various …
This paper is a review of the basic principles and recent developments of laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) as a method for the element- and isotope-selective trace analysis of solid materials.
Talc is usually green, white, gray, brown, or colorless. It is a translucent mineral with a pearly luster. It is the softest known mineral and is assigned a hardness of 1 on the Mohs Hardness Scale. Talc is a monoclinic mineral with a sheet structure similar to the micas. Talc has perfect cleavage that follows planes between the weakly bonded ...
Talc is also called steatite – or, in chemical terms, magnesium silicate hydrate. It is the main component of soapstone. Its crystals usually develop massive, leafy aggregates with laminar particles. ... Large suppliers with state-of-the-art lab capabilities claim to be able to leverage these to ensure that products are safe to use, both from ...
Laser polishing is a complex a electro-opto-mechanical system comprising multiple interconnected subsystems. Fig. 1 depicts the configuration of a standard laser polishing system. The various subsystems in laser polishing includes [31]:. Laser substem: The generation and delevery of the laser energy to the surface of the …
The atoms in the ground state go through a nanohole array in Fig. 4b with hole spacing in both x and y directions matched with the transition wavelength of the 1 S …
Direct metal laser sintering (DMLS), a 3D technique, can produce high strength and good corrosion resistance parts. DMLS utilizes the powder particles …
However, the move from academic research toward forensic casework is not without challenges. In this article, we provide a focused exploration of the current state …
1. Introduction. In recent years, there has been considerable interest in mapping shallow inland water bodies [1,2] and marine coastal zones [] due to statutory provisions [] obliging Member States to document their freshwater resources and to take measures to protect their waters.Moreover, this obligation should be performed …
State of the Art in Laser Surface Texturing 761 (Extended Abstract) As can be seen an exponential growth in number of publications took place since 2003. In the three years from 2005 through 2007 alone some 50 papers were published on this subject, in the English literature, by researchers coming
A. Laugustin, C. Canal, and O. Rabot, "State-of-the-art laser diode illuminators for automotive LIDAR," in 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, OSA Technical Digest (Optica Publishing Group, 2019), paper cb_p_15.