4,322 research outputs found
AGING-INDUCED WAVELENGTH SHIFTS IN 1.5-MU-M DFB LASERS
No full textWe report measured wavelength shifts of over one hundred 1.5-mum DFB lasers aged under three different conditions for a period corresponding to the system's lifetime (approximately 25 years). The results show that the lasers aged at lower temperature (thus higher optical power) have wider spread of wavelength shifts than the lasers aged at higher temperature. No correlation was observed between the wavelength shifts and the aging rates or the aging-induced changes in the threshold currents. The aging-induced wavelength shifts were relatively small (+/-1 angstrom) for most lasers. However, about 10% of the lasers exhibit larger wavelength shifts of up to about +/-4 angstrom
Frequency-division-multiplexed polarimetric fiber laser current-sensor array
No full textWe demonstrate a novel frequency-domain-multiplexing technique for implementing polarimetric fiber laser current sensors. Each sensor operates at a different polarization-mode beat frequency that is modulated in response to applied electric current. A bank of bandpass filters can be used to separate signals from different sensors. A simple frequency-demodulation technique based on a phase-locked loop is used for signal processing. (C) 1999 Optical Society of America.This research was supported by the Korea Institute
of Science and Technology Evaluation and Planning.
B. Y. Kim’s e-mail address is [email protected].
ac.kr
sj-docx-3-dhj-10.1177_20552076231222112 - Supplemental material for Enhancing equitable engagement for digital health promotion: Lessons from evaluating a childrearing app in Indonesia
No full textSupplemental material, sj-docx-3-dhj-10.1177_20552076231222112 for Enhancing equitable engagement for digital health promotion: Lessons from evaluating a childrearing app in Indonesia by Victoria Loblay, Mahalakshmi Ekambareshwar, Aila Naderbagi and
Yun JC Song, Michele Ford, Iqthyer Zahed, Adam Yoon,
Ian B Hickie, Haley M LaMonica in DIGITAL HEALTH</p
sj-docx-4-dhj-10.1177_20552076231222112 - Supplemental material for Enhancing equitable engagement for digital health promotion: Lessons from evaluating a childrearing app in Indonesia
No full textSupplemental material, sj-docx-4-dhj-10.1177_20552076231222112 for Enhancing equitable engagement for digital health promotion: Lessons from evaluating a childrearing app in Indonesia by Victoria Loblay, Mahalakshmi Ekambareshwar, Aila Naderbagi and
Yun JC Song, Michele Ford, Iqthyer Zahed, Adam Yoon,
Ian B Hickie, Haley M LaMonica in DIGITAL HEALTH</p
sj-docx-1-dhj-10.1177_20552076231222112 - Supplemental material for Enhancing equitable engagement for digital health promotion: Lessons from evaluating a childrearing app in Indonesia
No full textSupplemental material, sj-docx-1-dhj-10.1177_20552076231222112 for Enhancing equitable engagement for digital health promotion: Lessons from evaluating a childrearing app in Indonesia by Victoria Loblay, Mahalakshmi Ekambareshwar, Aila Naderbagi and
Yun JC Song, Michele Ford, Iqthyer Zahed, Adam Yoon,
Ian B Hickie, Haley M LaMonica in DIGITAL HEALTH</p
sj-docx-2-dhj-10.1177_20552076231222112 - Supplemental material for Enhancing equitable engagement for digital health promotion: Lessons from evaluating a childrearing app in Indonesia
No full textSupplemental material, sj-docx-2-dhj-10.1177_20552076231222112 for Enhancing equitable engagement for digital health promotion: Lessons from evaluating a childrearing app in Indonesia by Victoria Loblay, Mahalakshmi Ekambareshwar, Aila Naderbagi and
Yun JC Song, Michele Ford, Iqthyer Zahed, Adam Yoon,
Ian B Hickie, Haley M LaMonica in DIGITAL HEALTH</p
PARAMETER OPTIMIZATION OF JC CONSTITUTIVE MODEL OF AL7050 ALLOY BASED ON OXLEY’S THEORY
No full textAiming at the problem that Al7050 alloy is easy to deform in cutting process,the JC constitutive model suitable for practical cutting is established. Based on Oxley’s theory,a solution model was established. The JC constitutive model parameters of Al7050 alloy were obtained by using genetic algorithm and experimental data,and the JC constitutive model was verified by using cutting force as evaluation index. The results show that the strain range of JC constitutive model is 0. 80 ～ 1. 01,the strain rate range is 1. 6 × 10~3 s-1～ 2 × 10~4 s-1,and the temperature range is 96. 48 ℃ ～ 213. 07 ℃ . The average errors of the simulation and test values of the main cutting force and feed force using the custom material model are 4. 79% and 16. 08%,respectively. The average errors of the simulation and test values of the main cutting force and feed force of the material model with the software are 15. 08% and 25. 97% respectively,and the conclusion that the simulation value of the cutting force with the custom material model is more consistent with the test result is drawn
Perancangan Sistem Informasi Pengelola Barang/Inventaris Di Jc Komp
No full textInventory information system is a system used to enter inventory data into the database, so that there are no errors in input, output data, and reporting based on the desired data. based on surveys and interviews with jc comp personnel, information was obtained that the existing system in the jc comp warehouse section is still manual. therefore, the system that will be created by the author is the result of a replication of the existing system in the jc comp warehouse section. in addition to the process of input and output of goods, this information system is also equipped with features for creating data reports, input and output of goods, and searching for goods data by item name. with the inventory information system is expected to be useful for the warehouse parts jc comp. By implementing this system in the jc comp warehouse, it is hoped that it can reduce errors that may occur. this system is also expected to further speed up the process of input, output, and report generation, which in turn will help the jc comp warehouseSistem Informasi Persediaan Barang adalah sebuah sistem yang digunakan untuk memasukkan data-data persediaan barang ke dalam database, sehinggga tidak terjadi kesalahan dalam input, output data, dan pembuatan laporan berdasarkan data yang diinginkan. Berdasarkan survey dan wawancara dengan bagian personalia Jc Komp, didapatkan informasi bahwa sistem yang ada dibagian gudang Jc Komp masih manual. Oleh karena itu, sistem yang akan dibuat oleh penulis adalah hasil replikasi dari sistem yang telah ada dibagian gudang Jc Comp. Selain proses input dan output barang, pada sistem informasi ini juga dilengkapi fitur pembuatan laporan data, input, dan output barang, dan pencarian data barang berdasarkan nama barang. Dengan adanya Sistem Informasi persediaan barang ini diharapkan dapat bermanfaat bagi bagian gudang Jc Komp. Dengan diterapkannya sistem ini pada bagian gudang Jc Comp, maka diharapkan dapat mengurangi kesalahan-kesalahan yang mungkin terjadi. Sistem ini juga diharapkan dapat lebih mempercepat proses input, output, dan pembuatan laporan yang pada akhirnya dapat membantu bagian gudang Jc Komp
Amenable L-2-Theoretic Methods and Knot Concordance
No full textWe reveal new structures in the topological knot concordance group. As a key ingredient, we develop obstructions using L-2-theoretic methods for amenable groups in Strebel's class recently introduced by Orr and the author. Concerning (h)-solvable knots, which are defined in terms of certain Whitney towers of height h in bounding 4-manifolds, we show the following: for any n>1, there are (n)-solvable but non-(n. 5)-solvable (and therefore nonslice) knots, which are not detected by prior methods using Cochran-Orr-Teichner L-2-signature obstructions as well as Levine algebraic obstructions and Casson-Gordon invariants.X1197sciescopu
Dynamics of Network Formation Processes in the Co-Author Model
No full textThis article studies the dynamics in the formation processes of a mutual consent network in game theory setting: the Co-Author Model. In this article, a limited observation is applied and analytical results are derived. Then, 2 parameters are varied: the number of individuals in the network and the initial probability of the links in the network in its initial state. A simulation result shows a finding that is consistent with an analytical result for a state of equilibrium while it also shows different possible equilibria.Dynamics, Network, Game Theory, Model,Simulation, Equilibrium, Complexity
- …
