LEADER 04295nam 2200901z- 450 001 9910674052203321 005 20231214133552.0 010 $a3-0365-6038-6 035 $a(CKB)5470000001633345 035 $a(oapen)https://directory.doabooks.org/handle/20.500.12854/95791 035 $a(EXLCZ)995470000001633345 100 $a20202301d2022 |y 0 101 0 $aeng 135 $aurmn|---annan 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aChallenge and Research Trends of Solar Concentrators 210 $aBasel$cMDPI - Multidisciplinary Digital Publishing Institute$d2022 215 $a1 electronic resource (178 p.) 311 $a3-0365-6037-8 330 $aPrimary and secondary solar concentrators are of vital importance for advanced solar energy and solar laser researches. Some of the most recent developments in primary and secondary solar concentrators were firstly presented. A novel three-dimensional elliptical-shaped Fresnel lens analytical model was put forward to maximize the solar concentration ratio of Fresnel-lens-based solar concentrators. By combining a Fresnel lens with a modified parabolic mirror, significant improvement in solar laser efficiency was numerically calculated. A fixed fiber light guide system using concave outlet concentrators was proposed. The absence of a solar tracking structure highlights this research. By shaping a luminescent solar concentrators in the form of an elliptic array, its emission losses was drastically reduced. Simple conical secondary concentrator was effective for thermal applications. New progresses in solar-pumped lasers by NOVA University of Lisbon were presented. By adopting a rectangular fused silica light guide, 40 W maximum solar laser power was emitted from a single Ce:Nd:YAG rod. An aspheric fused silica secondary concentrator and a small diameter Ce:Nd:YAG rod were essential for attaining 4.5 % record solar-to-laser power conversion efficiency. A novel solar concentrator design for the efficient production of doughnut-shaped and top-hat solar laser beams were also reported. More importantly, a novel solar concentrator approach for the emission of 5 kW-class TEM00 mode solar laser beams from one megawatt solar furnace was put forward at the end of this book, revealing promising future for solar-pumped lasers. 606 $aTechnology: general issues$2bicssc 606 $aHistory of engineering & technology$2bicssc 610 $aluminescent solar concentrator 610 $asolar spectrum splitter 610 $apower generation in space 610 $amicroalgae 610 $abeam merging 610 $amultirod 610 $aNd:YAG 610 $asolar furnace 610 $asolar flux homogenizer 610 $asolar laser 610 $aTEM00-mode 610 $asolar pumping 610 $atwisted light guide 610 $atop hat 610 $adoughnut-shaped 610 $ananofluid 610 $aconical concentrator system 610 $aperformance comparison 610 $athermal efficiency 610 $aFresnel lens 610 $aGaussian source 610 $agroove number 610 $asolar flux 610 $aoptical efficiency 610 $afull width at half maximum 610 $aconcentrator 610 $alight guide 610 $aoptical fiber solar system 610 $asolar daylighting 610 $alaser 610 $aparabolic mirror 610 $asolar concentrator 610 $acollecting efficiency 610 $aconical solar concentrator 610 $aperformance analysis 610 $asolar energy 610 $aCe:Nd:YAG 610 $aaspherical lens 610 $aside-pumped 610 $auniformity 610 $alight-guide 610 $ahomogenizer 610 $asolar-pumped laser 610 $alaser efficiency 615 7$aTechnology: general issues 615 7$aHistory of engineering & technology 700 $aLiang$b Dawei$4edt$01337676 702 $aZhao$b Changming$4edt 702 $aLiang$b Dawei$4oth 702 $aZhao$b Changming$4oth 906 $aBOOK 912 $a9910674052203321 996 $aChallenge and Research Trends of Solar Concentrators$93057191 997 $aUNINA LEADER 04558nam 2201069z- 450 001 9910619468203321 005 20221025 010 $a9783036548883 010 $a3036548882 035 $a(CKB)5670000000391592 035 $a(oapen)https://directory.doabooks.org/handle/20.500.12854/93180 035 $a(oapen)doab93180 035 $a(EXLCZ)995670000000391592 100 $a20202210d2022 |y 0 101 0 $aeng 135 $aurmn|---annan 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 00$aAdvances in Laser Materials Processing 210 $cMDPI - Multidisciplinary Digital Publishing Institute$d2022 215 $a1 online resource (238 p.) 311 08$a9783036548876 311 08$a3036548874 330 $aLaser processing has become more relevant today due to its fast adaptation to the most critical technological tasks, its ability to provide processing in the most rarefied and aggressive mediums (vacuum conditions), its wide field of potential applications, and the green aspects related to the absence of industrial cutting chips and dust. With the development of 3D production, laser processing has received renewed interest associated with its ability to achieve pointed to high-precision powder melting or sintering. New technologies and equipment, which improve and modify optical laser parameters, contribute to better absorption of laser energy by metals or powder surfaces and allow for multiplying laser power that can positively influence the industrial spread of the laser in mass production and advance the existing manufacturing methods. The latest achievements in laser processing have become a relevant topic in the most authoritative scientific journals and conferences in the last half-century. Advances in laser processing have received multiple awards in the most prestigious competitions and exhibitions worldwide and at international scientific events. The Special Issue is devoted to the most recent achievements in the laser processing of various materials, such as cast irons, tool steels, high entropy alloys, hard-to-remelt materials, cement mortars, and post-processing and innovative manufacturing based on a laser. 606 $aHistory of engineering & technology$2bicssc 606 $aTechnology: general issues$2bicssc 610 $aanticorrosion steel 610 $aarea rate 610 $aatmospheric plasma sources 610 $abiomimetic model 610 $abionic crack blocked unit 610 $abrake pads 610 $acast irons 610 $acement-based material 610 $achemical analysis 610 $acomposition 610 $acorrosion susceptibility 610 $adefocusing 610 $adielectric barrier discharge 610 $aductile iron 610 $aenergy excess 610 $ahardness 610 $aheat diffusion 610 $ahigh entropy alloy 610 $alaser beam mode 610 $alaser bionic unit 610 $alaser cladding 610 $alaser melting 610 $alaser polishing 610 $alaser powder bed fusion 610 $alaser remelting 610 $alaser scabbling 610 $alaser treatment 610 $amechanical properties 610 $amicroroughness 610 $amicrostructural analysis 610 $amicrostructure 610 $an/a 610 $anickel alloy 610 $anumerical simulation 610 $aoffset 610 $aphase transformation 610 $apower density distribution 610 $aprofiling 610 $aquadratic laser spot 610 $arepair discontinuously 610 $aselective laser melting 610 $aspecific energy 610 $astress relief heat treatment 610 $asurface cleaning 610 $asurface roughness 610 $asurface wear 610 $atensile properties 610 $atensile test 610 $athermal conductivity 610 $athermal fatigue crack 610 $athermal properties 610 $atitanium alloy 610 $atool steel 1.2379 610 $aultrasonic peening 610 $awear 610 $awear resistance 615 7$aHistory of engineering & technology 615 7$aTechnology: general issues 702 $aVolosova$b Marina A$4edt 702 $aOkunkova$b Anna A$4edt 702 $aGrigoriev$b S. N$g(Sergey Nikolaevich)$4edt 906 $aBOOK 912 $a9910619468203321 996 $aAdvances in laser materials processing$92118222 997 $aUNINA