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The lasers
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Part 2 of ebook "CONCREEP 10: Mechanics and physics of creep, shrinkage, and durability of concrete and concrete structures" provides readers with contents including: steel corrosion in reinforced concrete mechanisms, assessment, measures, and forecast models; cracking behaviors caused by the corrosion of reinforcing bars in rc columns; evaluating the performance of recycled aggregate concrete; nanotechnology applied to concrete; towards the next generation of standards for the service life of cement-based materials and structures mini-symposium of COST action TU1404; microstructure and mic...
831p
mothoiphong
28-06-2024
1
1
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In the field of additive manufacturing, the design and fabrication of lattice structures have garnered substantial attention, particularly for their potential in advanced material applications. This study focuses on the mechanical properties of titanium alloy Ti64 lattice structures fabricated by Laser Powder Bed Fusion.
11p
visergeyne
18-06-2024
0
0
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The article introduces a method to create any 2D laser profiles applied in welding technology. This method allows for the creation of profiles that best suit the weld characteristics and material of the weld workpiece, thereby improving the quality, accuracy, and aesthetics of the weld and increasing laser welding efficiency.
9p
viambani
18-06-2024
1
1
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In this work, we proposed a simple model for control of subluminal and superluminal light propagation via an external magnetic field in a lambda configuration degenerate two-level atomic medium. We show that the absorption-dispersion properties and group index under the influence of the strength of coupling laser and external magnetic fields are controlled.
8p
viambani
18-06-2024
3
1
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Tài liệu nhằm mục đích hướng dẫn người đọc tìm hiểu về cấu tạo, nguyên lý hoạt động của từng thành phần trong máy in Canon LBP 2900/ 3000, các lỗi thường gặp của máy để từ đó có thể đưa ra giải pháp sửa chữa hợp lý nhất cho dòng máy in này.
62p
anhsvc
15-06-2024
9
2
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In conventional partial resection of parenchymatous organs significant bleeding is one of the main problems, especially in neonates and infants. The patients rapidly lose considerable amounts of their small blood volume. Laser light leads to photo thermal effects in tissue and causes coagulation, drying up, carbonization and evaporization, depending on the temperature.
150p
vimeyers
29-05-2024
4
2
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Ebook "Single pour industrial floor slabs: Specification, design, construction and behaviour" provides all the information needed by designers and contractors involved in ground bearing industrial floor design, dealing in detail with the design, construction, specification and behaviour of single pour industrial floor slabs. The properties of fibre reinforced concrete are explained as well as the way such materials can be placed quickly and conveniently by laser-guided screeding machines.
173p
giangdongdinh
28-05-2024
2
2
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This paper proposes a new method to improve the three-dimensional (3D) high precision optical surface measurement using a non-contact laser focusing probe. Herein, the displacement or the profile of the tested surface can be obtained by measuring the driving voltage curve to the piezoelectric translator's (PZT) expansion distance.
8p
dathienlang1012
03-05-2024
2
0
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Part 2 book "Applied quantum mechanics" includes contents: The harmonic oscillator, fermions and bosons, time dependent perturbation, the semiconductor laser, time independent perturbation, angular momentum and the hydrogenic atom.
279p
dianmotminh01
14-05-2024
3
0
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In this paper, we present an in-house flexible and portable lidar system integrating an inexpensive, passively Q-switched laser Nd: YAG and a detection module operating in both analog and photon counting mode. This system is designed to study the atmospheric boundary layer (BL) and cirrus clouds (CC). The passively Q-switched Nd:YAG pulsed laser, operating at a second-harmonic generation (SHG) wavelength of 532 nm, features a pulse energy up to 200 mJ, a repetition rate of 1 Hz to 15 Hz, and a pulse duration of 15 ns.
14p
dianmotminh02
03-05-2024
6
1
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. In this research, we present the DOAS system using the Ce:LiCAF laser for determining SO2 gas concentration in the atmosphere. The Ce:LiCAF laser has a full width at half maximum of 2 nm with a wavelength range from 286 to 291 nm and a peak wavelength of 288.5 nm. The results show that the DOAS system accurately determines the gas concentration with a measurement error of 6%. This result can serve as the basis for developing practical DOAS systems with the ability to monitor a wide range of gasses and survey many other types of pollutants.
8p
dianmotminh02
03-05-2024
2
1
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The derived temperature dependences of the peak intensities, separations and half-widths of the separate spectral peaks in the A-band phonon progressions indicate the different trends for vibration-free zero-phonon electronic transition and vibration-related lower-energy electronic transitions to high vibrational levels of the ground electronic state – lower thermal damping and more softened phonon for the zero-phonon transition, also implying the extended defect origin of the A-band photoluminescence.
9p
dianmotminh02
03-05-2024
3
1
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Bài viết "Phân tích ảnh hưởng của khí quyển bề mặt và độ rung máy đến độ chính xác của máy quét laser mặt đất phục vụ giảng dạy Công nghệ Lidar" mô tả tác động tiêu cực của khí quyển, đặc biệt là tầng khí quyển thấp hơn về độ chính xác đo của hệ thống quét laser mặt đất, bao gồm các giá trị như khoảng cách, góc ngang và dọc, cường độ và màu sắc trung thực của bề mặt vật thể.
3p
gaupanda030
03-05-2024
3
2
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In this paper, we study the formation of two electromagnetically induced transparency (EIT) windows in a four-level lambda atomic system with Doppler broadening. The depth and the width of the EIT windows are easily changed by adjusting the intensity of the controlling laser fields. Meanwhile, the position of the EIT windows is also easily shifted by changing the frequency of the laser fields.
12p
dianmotminh02
03-05-2024
3
2
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Part 2 book "Anaesthesia for minimally invasive surgery" includes content: Post-laparoscopy pain and pain relief; laparoscopic bariatric surgery; minimally invasive thoracic surgery; laser surgery of the upper aerodigestive tract, minimally invasive neurosurgery.
105p
zizaybay1101
30-04-2024
2
2
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In this paper, the author proposed a supervised machine learning network to identify and classify different crack types in asphalt-surface pavements. A laser camera captured surface images from pavement surface then classified them into 3 classes following the manual of pavement distress identification by the Federal Highways Administration (FHWA).
8p
viohoyo
25-04-2024
3
1
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Ebook "Ultrashort laser pulses in biology and medicine" gives an overview of biological and medical applications of these laser pulses. The briefness of these laser pulses permits the tracing of the fastest processes in photo-active bio-systems, which is one focus of the book. The other focus is applications that rely on the high peak intensity of ultrashort laser pulses. Examples covered span non-linear imaging techniques, optical tomography, and laser surgery.
326p
ladongphongthanh1008
22-04-2024
3
2
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Ebook "Sustainable innovations in apparel production" highlights sustainable innovations in the apparel production sector, which is the final destination in the textile production segment. Measuring sustainability in clothing is one of the inevitable areas to deal with when it comes to sustainable apparel production, which is also highlighted here.
117p
tracanhphuonghoa1007
22-04-2024
3
3
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Ebook "X-ray free electron lasers: A revolution in structural biology" aims to provide the readers with an overview of the new methods that have been recently developed as well as a prospective on new methods under development. It highlights the most important and novel Structural Discoveries made recently with XFELS, contextualized with a big-picture discussion of future developments.
486p
tracanhphuonghoa1007
22-04-2024
5
3
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Ebook "Laser fragmentation and melting of particles" gives a general understandable introduction into the field of laser fragmentation and melting of particles. The presented state of the art summarizes the comparably young method of laser fragmentation of particles and the even younger method of laser melting of particles.
272p
tracanhphuonghoa1007
22-04-2024
3
2
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