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Yuefeng Gao and Baojiu Chen
Seawater pollution caused by heavy metal ions is a growing concern among the public. Perovskite quantum dots (PeQDs) are ideal probes for detecting metal ions due to their exceptional sensing characteristics, including remarkable sensitivity, low detecti...
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Svyatoslav Chugunov, Andrey Smirnov, Anastasia Kholodkova, Andrey Tikhonov, Oleg Dubinin and Igor Shishkovsky
Efficient 3D-printing of lead-free piezoceramic items using stereolithography-based additive manufacturing procedure.
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Doan Thanh Trung and John G. Fisher
The effect of sintering atmosphere (O2, air, N2, N2-5% H2, and H2) on the densification, grain growth, and structure of KNbO3 was studied. KNbO3 powder was prepared by solid state reaction, and samples were sintered at 1040 °C for 1?10 h. The sample micr...
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M. Bakowski, J. Lang, J-K. Lim, J. Hellén, T.M.J. Nilsson, B. Schodt, R. Poder, I. Belov, P. Leisner
Pág. 157 - 165
The RF power amplifier demonstrators containing each one GaN-on-SiC, HEMT, CHZ015A-QEG, from UMS in SMD quad-flat no-leads package (QFN) were subjected to thermal cycles (TC) and power cycles (PC) and evaluated electrically, thermally and structurally. T...
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Jun Watanabe, Kenji Hatsuzawa, Shigeyuki Ogata, Shinichi Yoshida and Ikuo Shohji
The use of Sn-3mass%Ag-0.5mass%Cu lead-free solder (SAC305) has become common. Since SAC305 has a higher content of tin than conventional tin?lead eutectic solder, erosion of the Fe plating layer used in the solder iron tip and the point soldering machin...
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Nicolás Pérez, Alvaro García, Enrique Riera and Lorena Pardo
(Bi0.5Na0.5)0.94Ba0.06TiO3 dense ceramics were obtained from autocombustion sol-gel synthesized nanopowders and sintered at 1050 °C for 1?2 h for the study of the electromechanical anisotropy. Measurement of the complex impedance spectrum was carried out...
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Ephraim Suhir and Reza Ghaffarian
In this review, some major aspects of the current underfill technologies for flip-chip (FC) and fine-pitch-ball-grid-array (FPBGA), including chip-size packaging (CSP), are addressed, with an emphasis on applications, such as aerospace electronics, for w...
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Ding-Quan Ng and Yi-Pin Lin
In this pilot study, a modified sampling protocol was evaluated for the detection of lead contamination and locating the source of lead release in a simulated premise plumbing system with one-, three- and seven-day stagnation for a total period of 475 da...
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Yan Chen, Kai Mei, Chi-Man Wong, Dunmin Lin, Helen Lai Wa Chan and Jiyan Dai
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Martin Lederer,Golta Khatibi,Brigitte Weiss
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