微机电反射式可变光衰减器WDL的计算分析 by 胡薇, 周日凯, 胡强高, 马洪勇

“…文章采用矩阵光学方法,结合高斯光束耦合理论,推导出了反射式微电子机械系统（MEMS）可变光衰减器（VOA）波长—损耗相关特性公式;对透镜和插针之间空气隙的长度d1、透镜的长度d2、C透镜折射率和曲率半径等影响波长相关损耗（WDL）的因素进行了详细分析,并分别进行了数值仿真,得出了影响波长—损耗相关特性的几个关键因素,这些结果对研制反射式VOA有重要指导意义。…”
Get full text

Vertex operator algebras and topologically twisted Chern-Simons-matter theories by Niklas Garner

“…Abstract We consider several topologically twisted Chern-Simons-matter theories and propose boundary VOAs whose module categories should model the category of line operators of the 3d bulk. …”
Get full text

Investigation and design of a current mode instrumental amplifier by Phang, Yean Moi.

“…In this project, a current-mode based instrumental amplifier (CMIA) is designed from a topology that involves 1st level asymmetrical 2nd generation current conveyor (CCII+) which involves the use of VOA supply current sensing technique: current mirrors are used to sense the output current of VOA via its power supply rails. …”
Get full text

Does exchange rate risks matter for exports? a case of Malaysia by Mohd. Sidek, Noor Zahirah, Yusoff, Mohammed, Duasa, Jarita, Mat Ghani, Gairuzazmi

Get full text
Get full text

Conformational Distributions of Phenyl β-D-Glucopyranoside and Gastrodin in Solution by Vibrational Optical Activity and Theoretical Calculations by Mutasem Alshalalfeh, Ningjie Sun, Amanda Hanashiro Moraes, Alexandra Paola Aponte Utani, Yunjie Xu

“…For the infrared, Raman, and the associated vibrational optical activity (VOA), i.e., vibrational circular dichroism and Raman optical activity, experiments of these two compounds in DMSO and in water were carried out. …”
Get full text

Quantum key distribution using decoy state protocol by Ali, Sellami, Saharudin, Shuhairi, Wahiddin, Mohamed Ridza

“…The VOA utilized in experiment to attenuate signals dynamically was Intensity Modulator (IM). …”
Get full text

A lattice theoretical interpretation of generalized deep holes of the Leech lattice vertex operator algebra by Ching Hung Lam, Masahiko Miyamoto

“…We give a lattice theoretical interpretation of generalized deep holes of the Leech lattice VOA $V_\Lambda $ . We show that a generalized deep hole defines a ‘true’ automorphism invariant deep hole of the Leech lattice. …”
Get full text

L-band erbium-doped fibre amplifier with clamped- and flattened-gain using FBG by Harun, Sulaiman Wadi, Ahmad, Harith

“…The gain is clamped at 16.9 dB with gain variation of less than 0.1 dB from input signal power of -40 to -18 dBm by setting the VOA = 5 dB. Also, the amplifier has the flattest gain spectrum at VOA = 5. …”

Optimization studies of BTX removal by magnetite coated oleic acid obtained from microwave-assisted synthesis using response surface methodology by Makhosazana Masuku, Linda Ouma, Saheed Sanni, Agnes Pholosi

“…The analysis of variance results revealed that VOA and VAW were the most influential factors for high % Fe content, and improved BTX removal. …”
Get full text

Solar Radiation Forecasting Using Machine Learning and Ensemble Feature Selection by Edna S. Solano, Payman Dehghanian, Carolina M. Affonso

“…Numerical results demonstrate that the proposed ensemble feature selection approach improves forecasting accuracy and that VOA performs better than the other algorithms in all prediction time horizons.…”
Get full text

Gain Control in L-Band Erbium-Doped Fiber Amplifier Incorporating Broadband Fiber Bragg Grating by Harun, Sulaiman Wadi, Tamchek, Nizam, Poopalan, Prabakaran, Ahmad, Harith

“…The amplifier gain is clamped at 16.5 dB with variation less than 0.2 dB and the dynamic range up to -7.5 dBm for the VOA loss of 4 dB. The clamped gain level can also be controlled from 15.0 to 22.9 dB by increasing the VOA loss from 0 to 32 dB without significant variation in the noise figure.…”

Gain clamping in double-pass L-band EDFA using a ring resonator by Harun, Sulaiman Wadi, Samsuri, Norhakimah Md, Ahmad, Harith

“…The gain is clamped at 11.5 dB with a gain variation of less than 0.1 dB from an input-signal power of -40 to -6 dBm by setting the variable attenua tion setting (VOA) at 8 dB, Also, the clamped-gain level can he controlled to he in the range from 4.7 to 21.3 dB by varying the VOA settings from 0 to 24 dB. …”

Pretreatment Of Dewatered Sludge Formicrobial Fuel Cell Application by Rusdi, Nur Fatin Syahira

“…First, effect of sludge pretreatment was analysed by Chemical Oxygen Demand (COD) solubilisation and Volatile Organic Acids (VOA). After 24 hours of pretreatment, COD solubilisation and VOA was higher for alkaline pretreatment and lower for acidic pretreatment. …”
Get full text

Tunable multiwavelength narrow linewidth Brillouin erbium fiber laser based on Rayleigh backscattering by Wang, Xiaorui, Yang, Yanfu, Liu, Meng, Yao, Yong

“…RBS is used as a mechanism to compress the linewidth of each Stokes component, and it has been realized and maximized in conventional SMF by optimizing injection power of Stokes light through adjusting variable optical attenuator (VOA). By adjusting VOA attenuation, the laser can obtain three wavelengths output with 3 dB linewidth less than 2 KHz for each wavelength, or six wavelengths output with 3 dB linewidth less than 5 KHz.…”
Get full text
Get full text

Ambilan oksigen maksimal (V02,�) pada usia lanjut: Hubungan antara Lama dan Frekuensi Latihan dengan Tinggi VO2rna,= Maximum Oxygen Uptake (VO) : Relation betweenDuration and Fre... by Perpustakaan UGM, i-lib

“…Conclusion: The results indicate that to maintain the level of VOâ�� in elders, they should exercise regularly. …”

Gain control in double-pass L-band EDFA using a ring resonator and two-stage configuration by Harun, Sulaiman Wadi, Md Samsuri, N., Poopalan, Prabakaran, Ahmad, Harith

“…The gain is clamped at 10.6 dB for all input signal powers from -40 dBm to -4 dBm with a gain variation of less than ±0.4 dB, when the variable optical attenuator (VOA) is set at 0 dB. The clamped-gain level can be tuned from 10.6 to 21.6 dB by varying the VOA settings from 0 to 12 dB. …”

Tunable and Low Noise Gain-Clamped Double-Pass L-Band Erbium-Doped Fiber Amplifier by Harun, Sulaiman Wadi, Samsuri, Norhakimah Md, Ahmad, Harith

“…Gain clamping is achieved by incorporating a narrow-band FBG operating at the C-band wavelength in conjunction with an optical circulator to generate a Fabry-Perot laser, which can be tuned by a variable optical attenuator (VOA). The gain is clamped at 19.0 dB for all input signal powers from -40 to -12dBm with a gain variation of less than 0.2 dB at a VOA setting of 0 dB. …”

Globus pallidus internus activity increases during voluntary movement in children with dystonia by Estefania Hernandez-Martin, Maral Kasiri, Sumiko Abe, Jennifer MacLean, Joffre Olaya, Mark Liker, Jason Chu, Terence D. Sanger

“…The results revealed prominent beta-band frequency peaks in the globus pallidus interna (GPi), ventral oralis anterior/posterior (VoaVop) subnuclei of the thalamus, and subthalamic nucleus (STN) during movement but not at rest. …”
Get full text

BAM Austria: Arbeitskreis Bibliotheken, Archive, Museen Österreichs: Aktivitäten 2016 by Bruno Bauer, Markus Feigl, Gabriele Fröschl, Martina Griesser, Rainer Hubert, Lorenz Mikoletzky, Alfred Schmidt, Siegfried Steinlechner, Harald Wendelin

Get full text

Malaysian perceptions on Rayani Air’s Islamic corporate image and its impact on the future Islamic airlines by Mohd Nazri, Nadia, Adzharuddin, Nor Azura, Abdul Rauf, Ridzuan

Get full text