|
|
|
|
|
Yisu Zhang, Kai Wang, Wei Yue, Shuangkui Liu, Jieling Yu and Xin Ye
Underwater spectral detection plays an important role in the study of the underwater environment, ecology, oceanography, and environmental monitoring. A kind of underwater spectral radiometer that can observe the distribution of underwater spectral radia...
ver más
|
|
|
|
|
|
|
|
|
|
|
Spyridon Koutsoumpos, Panagiotis Giannios and Konstantinos Moutzouris
We present a concept that enables the determination of the complex refractive index of attenuating media from two critical angles, measured sequentially at two interfaces between a single sample and two different prisms. The proposed method is general in...
ver más
|
|
|
|
|
|
|
|
|
|
|
Yunwei Wang, Yun Peng, Zhiyun Du, Hangjie Lin and Qian Yu
In environments of high suspended sediment concentration (SSC > 1 kg/m3), efficient measurements of SSC through accurate calibration relationships between turbidity and SSC are necessary for studies on marine sediment dynamics. Here, we investigated the ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Madhu Gyawali, W. Patrick Arnott, Rahul A. Zaveri, Chen Song, Bradley Flowers, Manvendra K. Dubey, Ari Setyan, Qi Zhang, Swarup China, Claudio Mazzoleni, Kyle Gorkowski, R. Subramanian and Hans Moosmüller
We present the evolution of multispectral optical properties through urban aerosols that have aged and interacted with biogenic emissions, resulting in stronger short wavelength absorption and the formation of moderately brown secondary organic aerosols....
ver más
|
|
|
|
|
|
|
|
|
|
|
Yuyang Shao and Jerome P.-Y. Maa
Laboratory experiments were conducted to compare the performances of four different instruments for measuring suspended cohesive sediment concentrations (SSCs). Among these instruments, two were different models of optical backscatter sensor (i.e., OBS3+...
ver más
|
|
|
|
|
|
|
|
|
|
|
Rui Huang, Qinghe Zhang, Pengfei Qi and Weiwei Liu
A set of miniature optical fiber particle concentration measuring instruments is designed and applied to develop a unified expression for the concentration measurement of uniform particles in tap water. By measuring the concentrations of six uniform sili...
ver más
|
|
|
|
|
|
|
|
|
|
|
Lijuan Gu, Xiangge He, Min Zhang and Hailong Lu
As one of the most important physical parameters of seawater, salinity is essential to study climatological change, to trace seawater masses and to model ocean dynamics. The traditional way to conduct salinity measurement in hydrographical observation is...
ver más
|
|
|
|
|
|
|
|
|
|
|
Tamás Várnai and Alexander Marshak
This paper presents an overview of our efforts to characterize and better understand cloud-related changes in aerosol properties. These efforts primarily involved the statistical analysis of global or regional datasets of Moderate Resolution Imaging Spec...
ver más
|
|
|
|
|
|
|
|
|
|
|
Euis Ismayati10.17509/invotec.v7i1.6075 Abstract views: 937 PDF downloads: 934
This research aims to develop instructional media products with the computer based instructions in Physics Optical subject matter for S1 Electrical Engineering students, know the difference learning outcomes between students who use instructional m...
ver más
|
|
|
|
|
|
|
|
|
|
|
Harry A. G. Pointon, Benjamin J. McLoughlin, Christian Matthews and Frederic A. Bezombes
In this paper, we present an alternate method for the generation and implementation of the sensor measurement variance used in an Extended Kalman Filter (EKF). Furthermore, it demonstrates the limitations of a conventional EKF implementation and postulat...
ver más
|
|
|
|
|
|
|
|
|
|
|
Edgar Josué Arellano Hernández,Arne Krüeger,Claudia Inés Rivera Cárdenas,Wolfgang Stremme,Martina Michaela Friedrich,Alejandro Bezanilla,Michel Grutter
Pág. 157 - 167
An instrument based on the Multi Axis Differential Optical Absorption Spectroscopy (MAX-DOAS) technique was designed and constructed to measure scattered sunlight in the UV-visible region at different elevation angles. Slant column densities (SCDs) of sp...
ver más
|
|
|
|
|
|
|
|
|
|
|
Han Zhou, Xiaoling Yang, Zhongqi Wang, Jie Zhang, Yinchao Du, Jiangpeng Chen and Xuezhe Zheng
Since tiny optical glass is the key component in various optical instruments, more and more researchers have paid attention to automatic defect detection on tiny optical glass in recent years. It remains a challenging problem, as the defects are extremel...
ver más
|
|
|
|
|
|
|
|
|
|
|
Jan Metje, Fabiano Lever, Dennis Mayer, Richard James Squibb, Matthew S. Robinson, Mario Niebuhr, Raimund Feifel, Stefan Düsterer and Markus Gühr
We present a highly flexible and portable instrument to perform pump-probe spectroscopy with an optical and an X-ray pulse in the gas phase. The so-called URSA-PQ (German for ?Ultraschnelle Röntgenspektroskopie zur Abfrage der Photoenergiekonversion an Q...
ver más
|
|
|
|
|
|
|
|
|
|
|
Shenghan Wei, Xiang Li, Yong Yao and Suixian Yang
As a practical application of Optical Character Recognition (OCR) for the digital situation, the digital instrument recognition is significant to achieve automatic information management in real-industrial scenarios. However, different from the normal di...
ver más
|
|
|
|
|
|
|
|
|
|
|
Francesca Bisconti
The JEM-EUSO program aims to study ultra-high energy cosmic rays from space. To achieve this goal, it has realized a series of experiments installed on the ground (EUSO-TA), various on stratospheric balloons (with the most recent one EUSO-SPB2), and insi...
ver más
|
|
|
|
|
|
|
|
|
|
|
Pierre-Alexandre Blanche, Lloyd LaComb, Youmin Wang and Ming C. Wu
We are presenting an overview of MEMS-based (Micro-Electro-Mechanical System) optical switch technology starting from the reflective two-dimensional (2D) and three-dimensional (3D) MEMS implementations. To further increase the speed of the MEMS from thes...
ver más
|
|
|
|
|
|
|
|
|
|
|
S. Ramachandran and Sumita Kedia
Seasonal and inter-annual variabilities in aerosol optical depth (AOD) and aerosol size distribution are investigated using ground-based measurements (sun photometers and sun/sky radiometers), and MODIS (MODerate Imaging Spectroradiometer) and MISR (Mult...
ver más
|
|
|
|
|
|
|
|
|
|
|
Paidamwoyo Mhangara, Willard Mapurisa and Naledzani Mudau
Nanosatellites are increasingly being used in space-related applications to demonstrate and test scientific capability and engineering ingenuity of space-borne instruments and for educational purposes due to their favourable low manufacturing costs, chea...
ver más
|
|
|
|
|
|