bluuebunny/crossref_metadata_2025_split huggingface dataset:
The latest development of Marine controllable source electromagnetic transmitter
Authors: Wang Meng , Ming Deng , Li Xiancheng , Zhang Ziyang , Yue Haitao , Zhang Tianyu , Duan Nini , Ma Xiaoxi 
Published: February 2021

Abstract
Marine Controlled-Source Electromagnetic (MCSEM) methods have been recognized as an important and effective tool in accurate analysis of shallow electrically resistive structures such as oil, gas and gas hydrate. However, the MCSEM performance in the deep ocean is strongly affected by the hardware design, especially the transmitter system. We have developed a series of deep-towed MCSEM transmitter systems. The design of the transmitter system meets serious challenges such as long-distance and high-voltage transmission, water sealing under high-pressure, the real-time monitoring of seafloor status information 4 km below the sea-surface. In this paper, we present the latest research and development of the MCSEM transmitter systems by presenting key technologies in hardware development and implementation details. The deep tow transmitter system consists of three parts: the deck unit, the deep tow cable and the deep tow unit, which can transmit the high frequency and high power to the seawater, maintaining a high-speed data communication with control center which in the ship’s lab. We conducted several experiments in the South China Sea from August of 2010, to November of 2019. The results showed that the development of the transmitter is successful and it can be used for oil, gas and gas hydrate exploration as an effective source.
Application of Self-Propelled Light Electro-Hydraulic Servo Vibrator Vehicle: A Case of Chaganhua Town, Jilin Province, China
Authors: Du Lizhi , Wang Yanlong , Wang Yuan , Wang Yong , Zhang Guoqiang , Zhang Xiaopei 
Published: February 2021

Abstract
In order to test the performance of the LVIB-15 self-propelled light electro-hydraulic servo vibrator developed by Jilin University, a comparative test was conducted on different excitation conditions of a hard pavement and sandy road in Chaganhua town, Jilin Province, China. The optimum scanning frequency was determined by comparing different scanning frequencies. And seismic exploration with a length of 1.2 km was completed. The results show that the reflections were very clear and had good consistency. The signal-to-noise ratio of seismic signal was very high, reaching a reflector of 1400 ms, proving that the seismic data of vibroseis had high accuracy and reliable results and it meets the demand of geophysical prospecting.
Wireless Energy-Efficient System Based on the Directed Diffusion Routing Method for the High Density Seismic Array Survey
Authors: Tian Ruyun , Wang Longxu , Zhang Junjie , Yang Hongyuan , Zhang Linhang 
Published: February 2021

Abstract
High-density seismic array survey has attracted high R&D interest in geophysical methods in recent years, and it is an advanced seismic observation technology which is of great significance in oil and gas resource detection and underground space exploration. However, designing a portable sensor node that prolongs the lifetime and equips wireless monitoring system to improve construction efficiency has been still a challenge. In this paper, a portable energy-efficient wireless sensor node and a wireless communication system that content them with complex terrain, large-scale and reliable transmission is proposed to tackle the restrictions of high-density seismic array survey. This paper proposes a directed diffusion routing method which performs the energy-efficient design by maintaining the link gradient and the ability of automatic power adjustment. In addition, when the sink node initiates an instruction, it quickly covers all nodes and receives the response from the nodes. Then, a series of simulations and experiments are carried out for verification. The experiments show that the equivalent noise of the sensor node is 0.8μV@500Hz, which suggest good performance among the existing sensor nodes. Simulation results and performance analysis validate that the effectiveness of the proposed routing method can maintain the network with only 20mW at autonomous working mode. The field measurement results indicate that the wireless multi-hop energy-efficient system based on the directed diffusion routing method is suitable for the high-density seismic survey.
Numerical modelling for a simplified bridge pier model under high-speed train passage over the bridge
Authors: Wang Zhiyang , Chen Chaopu , Li Youming , Liu Hong , Bai Wenlei 
Published: February 2021

Abstract
In this work, we simplify a moving high-speed train as combination of a series of the axe loads from the front and rear bogies of cars. We build a simplified bridge pier model, as a result, train source expressions with cars moving on land and bridges are given respectively. Considering that the piers are inserted into the ground at a depth of a few tens meters and reach the bedrock. When the high-speed train passes the piers, the piers will appear oscillating motion which is subjugated by the ground, and this oscillating motion is relative to the microstructure interactions of subsoil and bedrock in the frame of the generalized continuum mechanics theory. Hence, we derive the elastic wave equations based on the modified couple stress theory to perform numerical modelling for a simplified bridge pier model under high-speed train passage over the bridge. Based on the wave equation and the train source expressions, a theoretical seismogram of a moving high-speed train with 16 cars on the bridge are obtained. Compared with the real data recorded when a high-speed train passed the piers in Dingxing County, some conclusions are drawn.
Robust cross-correlation functions of high-speed rail system
Authors: Bao Tiezhao , Ning Jieyuan , Zhang Xianbin 
Published: February 2021

Abstract
The vibration propagating along the railway direction is extracted by cross-correlation method (CCM). Given two stations both beneath the railway viaduct, robust cross-correlation functions (CCF) can be obtained by stacking those of different trains. The robust CCF can be used as characteristic quantities of the wave field generated by high-speed rail (HSR). These quantities have potential to monitor the structural changes of HSR system.
+2.5% Improvement in generation utilizing Anti soiling modules based on DSM technology
Authors: Verma Rajat , Mahajan Amresh , Pathak Prem 
Published: February 2021

Abstract
Accumulation of dust on solar modules decreases the transmittance of photovoltaic glazing, resulting in both deteriorated efficiency and daily energy losses. Actually, the soiling phenomenon in PV systems has been shown to be responsible for a medium- and long-term yield reduction of up to 16% over the first year of outdoor exposure [1].The most prominent origin of dust is driven by wind and soil particles from the ground surface. All over the planet, the properties of dust due to geological, topographical, and environmental ambiences such as relative density, particle structure, surface effects, and vapour content differ from one location to another. In the present study, an exploration of the energy gain observed by Photovoltaic modules coated with DSM Anti-Soiling coating (ASC) installed at 150 MW solar power plant in Andhra Pradesh is presented. The experiment for the analysis of the generation data started on 6 September 2018. Four different slots, one with DSM ASC and the rest with an anti-reflective coating (ARC), with equivalent DC connected load are chosen for analysis. The washing cycle was maintained at an interval of 10 days. The study shows that the modules with ASC generate +2.5% more power than the modules with ARC.
Single-mode optical fibers coupling: Study of the field of view
Authors: Shaker Lina M , Osamah Sara , Al-Amiery Ahmed A 
Published: February 2021

Abstract
Single mode Fiber (SMF) is commonly used in long distance applications as in optical communication. Coupling of the laser beam into SMF core to get high coupling efficiency is a challenging task in practice. The aim of our work is to study the impact of the field of view on the coupled light beam, taking into account well designed coupling lens to be sure that the focal spot has matched to the mode of propagation.Here in this article, a conical lens of 1.5 refractive index was used for light coupling process. The used criteria at HeNe laser of 0.5438 nm wavelength showed a degradation in the output signal due to generated distortion as the field of view increased from 0 to 6 degrees.
Performance evaluation of a 200 kWp grid tied solar power plant
Authors: Rajan K K , Aruna B 
Published: February 2021

Abstract
Grid tied solar power plants are found to be very adaptable for academic institutions as the load profile almost matches with the generation profile. For the academic institution under consideration, optimum capacity of the solar power plant is arrived at as 250 kWp, based on studies carried out. Since the institution was already having a plant of 50 kWp, it is decided to augment it with another solar plant of 200 kW capacity. The normal power supply available from the utility was not very reliable, which leads to frequent power failures. Hence a 200 kVA capacity Diesel Generator (DG) was provided for standby power requirement. An automatic power factor control (APFC) unit is also provided to improve the power factor of the system. During commissioning, the performance of the 200 kWp solar power plant was assessed based on the measurement of various parameters at site and were compared with the standard specifications. Integrated operation of the system was carried out and few operating difficulties were faced. In this paper, performance evaluation test results of 200 kWp solar plant, experience in integrated operation, the difficulties faced and the measures adopted to rectify them are discussed.
Implementation of Sobel filter using CUDA
Authors: Akasapu Akshita , Sailaja V , Prasad G 
Published: February 2021

Abstract
The Sobel filter is an edge detection filter that results in highlighting and focusing the edges. It is used for extracting the image gradient and contours in image processing applications. The data sets we are using in the paper are PGM and TIFF images with different rows and column pixel dimensions. The sobel filter operations used are implemented in C and CUDA programming language and the time taken for the operations in the serial and parallel platforms respectively are analyzed.
Improved progressive collapse resistance of irregular reinforced concrete flat slab buildings under different corner column failures
Authors: Garg Suyash , Agrawal Vinay , Nagar Ravindra 
Published: February 2021

AbstractAs the flat slab building with irregular geometric configurations is commonly designed to advance urban development and for architectural demands, its behaviour to resist progressive collapse must be examined. The building's progressive collapse occurs when one or more vertical structural load-bearing elements such as columns are removed due to an extreme load caused either by natural or manmade hazards. The present analytical research examines the failure criteria and improvement in the progressive collapse resistance of five and ten-storey irregular R.C flat slab building by incorporating perimeter beams along with strengthened perimeter columns in the building. The progressive collapse study is conducted by removing different corner columns on the ground floor as per the GSA guidelines (2003) and assessing the spread of damage. Static analysis is performed using the structural analysis program ETABS 2016. For each case, the results have been taken in terms of demand capacity ratio (DCR) at critical sections and, chord rotation and joint displacement at locations of removal of columns. The results showed that the presence of strengthened columns provides sufficient stiffness and the perimeter beam provides load paths for the building's gravity loads, thus making it resistive to progressive collapse under column failure.
SCPI based integrated test and measurement environment using LabVIEW
Authors: Aravind Balaji B , Sasikumar S , Ramesh K 
Published: February 2021

Abstract
Test and Measurement processes play a vital role on the quality of hardware functionality testing. Automating these processes provides a better reduction in “time to market” and is more concerned on achieving higher test coverage area when it comes to mass production. Functional testing deals with the observation on the characteristics of the hardware to determine whether it replicates the needs for which it was actually designed. This can be achieved using set of Test and Measurement Instruments which can replicate the environmental condition in which the hardware is to be deployed. This paper provides an environment to integrate set of measurement instruments in a single platform (LabVIEW) and automate the measurement control using command language know as Standard Command for Programmable Instrumentation (SCPI). Script based control commands provide an easy configuration and remote control of instruments. And also programming interface control using Virtual Instrument Software Architecture (VISA) to control instruments using Ethernet and USB protocol.
Design and analysis of near infrared high sensitive metal-insulator-metal plasmonic bio-sensor
Authors: Ben salah H , Hocini A , Melouki N , Khedrouche D 
Published: February 2021

Abstract
In this paper, a high sensitivity metal-insulator-metal (MIM) waveguide based plasmonic sensor, coupled by a hexagonal ring resonator is proposed. The sensing characteristics of the device are analyzed by the finite-difference time-domain (FDTD) method embedded in the commercial simulator R-Soft. From results, there is a linear relation between the material’s refractive index and its wavelength resonances. Moreover, the maximum linear sensitivity is S = 1743 nm/RIU for the second mode and it is S = 836 nm/RIU for the first mode, its corresponding sensing resolution is 5.73 × 10−6 RIU for mode 2 and 1.19 × 10−5 RIU for mode 1. The proposed sensor can be implemented in high performance nano-sensors and bio-sensing devices. The positions of transmission peaks can be easily manipulated by adjusting the inner side lengths of the hexagonal ring resonator, making this structure a dynamically controllable band pass filter. In addition, introducing another small hexagonal ring within the base resonator decreased the full width of half maximum (FWHM) of the resonance peak.
Synthesis and characterization of PVA/sPTA proton exchange membranes for fuel cell applications
Authors: Gomaa M M , Elsharkawy Y S , Abdel-Hamed M O , Abdel-Hady E E 
Published: February 2021

Abstract
Using the casting method, proton exchange membranes PEMs for fuel cell were prepared by thermal cross-linking of polyvinyl alcohol (PVA) with sulfophthalic acid (sPTA). The membranes were prepared with different cross-linking temperatures with thickness ranged between 100 to 150 μm. The prepared membranes were characterized by different techniques such as ion exchange capacity, thermal analyses, water uptake and proton conductivity. The prepared membranes showed proton conductivity between 8.46-32.7 mS/cm. Increasing the cross-linking temperature increased the cross-linking density, resulting in an enhancement in the tensile strength and thermal stability of the prepared membranes. The membrane hole sizes were obtained using positron annihilation lifetime spectroscopy (PALS) measurements. Cross-linked PVA/sPTA membranes showed a strong correlation between the free volume hole size with the mechanical stability and methanol permeability of the membranes.
Optical properties of one-dimensional photonic crystal and light absorption enhancement in planar a-Si:H solar cell
Authors: Sadoun B , Mouetsi S , Hocini A , Hocini A 
Published: February 2021

Abstract
The generation of the photovoltaic has intensified over the last decade, moving from the most basic applications based on elementary devices to one of the most important applications of energy. Photonic Crystals (Ph.Cs) are very promising systems for applications in the field of electromagnetic waves and for real achievements in microwaves field. This particular property of the Ph.Cs offers the possibility of the control of light propagation in an increased way, and thus makes possible to consider many applications in nanotechnology and photovoltaic field. The a:Si-H is a very attractive material for simulation and experimental applications, when deposited in thin layers, it has an efficient refractive index. The Plane Wave Expansion (PWE) method was used to assess the band gap of the structure, the Rigorous Coupled-Wave Analysis (RCWA) method integrated in RSoft CAD Software was used to calculate the optical properties, integrates with thin film structure of the solar cell with Ph.Cs. The one-dimensional optical properties of photonic crystal with the absorbent layer of photovoltaic cell on both hydrogenated amorphous silicon (a:Si-H) and silicon (Si) are studied in this paper in order to enhance the yield of the absorption of light on a solar cell with an efficiency geometrical parameters.
Comparative analysis results of the homogenization of nanosuspensions using ultra-jet processing method
Authors: Htet Kyaw Myo , Galinovskiy A L , Barzov A A , Soehnlein J 
Published: February 2021

Abstract
This work discusses the urgent problem of finding new highly effective dispersion methods for suspensions prepared using nanomaterials such as (boehmite, graphene, carbon nanotubes). In this research, two experiments are considered. The first experiment uses a solid target from a single crystal of diamond. The second experiment is conducted in the absence of a target. This means that ultrasound interacts with the surface of a tool for collecting the suspension at the initial time, and then with the processed suspension in the tank. Based on comparative experimental data, it has been shown that the ultra-jet processing method has several advantages.
Temperature state of the housing and shell for an inflatable aerodynamic decelerator
Authors: Abramova E.N. 
Published: February 2021

Abstract
Space debris is a growing concern that becomes more urgent with the increase in space exploration. This is the reason for equipping spacecraft with disposal systems. One of the methods for space debris removal is deorbiting a small spacecraft by using a decelerator. This paper presents issue analysis related to a selection of design and technology solutions and temperature analysis for inflatable aerodynamic decelerator of small spacecraft.
A method of sharing secrecy using star graphs
Authors: Prasad G , Anandan R , Uma Maheswari G 
Published: February 2021

Abstract
This article introduces a new technique of picture coding method for a secret text messages in the form of matrix using star related graphs by applying the subset of super mean labeling, sub super mean labeling is one of the important topics in graph theory. Let G be a (p, q) graph and α : V (G) → {1, 2, 3, · · ·, p+q} be an injection. For each edge l = uv, let

α
*

(
e
)

=

{

α

(
u
)

+
α

(
v
)

2

if

α

(
u
)

+
α

(
v
)

is

even;

α

(
u
)

+
α

(
v
)

+
o
n
e

t
w
o

if

α

(
u
)

+
α

(
v
)

is

odd

then α is called Sub Super Mean Labeling if α(V) U {α*(l) : l G E(G)} C {one, two, three, · · ·, p+q}. A graph that admits a Sub Super Mean Labeling is called a Sub Super Mean Graph.
Active Fraction as Anti-obesity by in Vitro toward Pancreatic Lipase Activity
Authors: Iswantini D , Hanif N , RizkiPranoto D , Trivadila  
Published: February 2021

Abstract
Fruit extract of asamgelugur (Garciniaatroviridis) can be used as an anti-obesity by in vitro against pancreatic lipase activity. The pancreatic lipase plays a role in degradation of lipids into fatty acids, as pancreatic lipase activity is hampered, the absorption of monoglycerides in the human body decreases. The purpose of the research was to identify and evaluate the Garciniaatroviridisfruit fraction as pancreatic lipase inhibitor. The extracted fruit with percolation method showed an inhibitory activity of 44.16% at 500 µg/mL. Xenical® as the positive control exhibited an inhibitory activity of 43.65% at 25 µg/mL. The best result from partitioning was using BuOH solvent with inhibitory activity of 56.42% at 100 µg/mL, whereas from Xenical® was 50.35% at 50 µg/mL. The best fraction from BuOH fractionation eluting with CH2Cl2:MeOH revealed an IC50 value of <10 µg/mL, or was better than Xenical®. Therefore, E fraction from BuOH solvent of garciniaatroviridisextract is potential as a pancreatic lipase inhibitor.
A study of substrate effect on dispersion characteristics of suspended microstrip line
Authors: Biswas K 
Published: February 2021

Abstract
In this paper suspended microstrip lines are studied for their dispersion characteristics using Galerkin Technique in Spectral Domain. Basis functions for the unknown strip current are chosen according to the geometry of the structure of the line. For theoretical analysis, Fourier transform of the basic functions from space domain to spectral domain are considered. The line is analyzed for dispersion characteristics in the X-band corresponding to different values of the thickness of the suspended dielectric substrate and also studied for the different values of the relative permittivity of the substrate.
Analysis of a long span cable-stayed suspension hybrid bridge considering variable intermediate side span supports
Authors: Savaliya G M , Desai A K 
Published: February 2021

Abstract
The bridges supported by high strength steel cables are the substitute to attain very lengthy bridge. Usually, cable supported bridge systems known as cable-stayed bridge and suspension bridge are used to achieve longer span bridge. In the cable-stayed bridge system better stiffness is achieved due to inclined stayed cables. In suspension bridge systems longer central span is achieved by provision of stiffened deck. The novelty in structural form, material technology and analysis methods offer further long span cable supported structural system. By combining the cable-stayed bridge and suspension bridge in a bridge, an innovative form of hybrid cable-stayed suspension bridge may offer enhanced behaviour. Mathematical model for innovative form of hybrid cable-stayed suspension bridge is addressed. The geometrical parameters play important role in structural behaviour of the cable-stayed suspension hybrid bridge. Nonlinear static analysis and modal analysis are carried out using SAP2000 software. The effects of intermediate side span support on the static and dynamic behaviour of cable-stayed suspension hybrid bridge are presented in the form of time period of bridge in lateral, longitudinal, vertical directions and pylon bending.
Utilization of waste glass powder as a cementitious material in concrete
Authors: Zanwar Anand B , Patil Yogesh D 
Published: February 2021

Abstract
Disposal of waste glass derived from bundling glass, beverage bottles, and so forth is one of the significant issues in the environment. This challenge keeps on expanding with increment the measure of waste glass and reduction the limit of landfill space. Hence, studies have been carried out to locate the handy approaches to reuse waste glass in building material, for example, cement, mortar, and concrete. In this study impact of waste glass powder (WGP) as cement substitution material on the green and mechanical properties of concrete were explored. The properties of concrete researched incorporate, Density, workability, strength activity index and compressive strength. Results from the investigation demonstrate that utilization of 20% WGP in concrete cube substitute to cement increase strength around to 12.5%. Additionally, usage of WGP up to 20% improves the properties of concrete. However, the workability of concrete reduced on the substitution of WGP increases because of the fine surface area of waste glass powder.