bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Influence of Geometry on the Loss of Curved Slot Waveguide
Authors: Jiang Yi , Yue Jinying , Gao Jinyu , Xu Jing 
Published: November 2020

Abstract
In curved slot waveguide devices, there are often waveguide bending situations. Under certain conditions, the smaller the waveguide bending geometry, the more compact device structure; the smaller the bending geometry, the greater the loss caused by waveguide bending. Based on the study of the loss of a curved slot waveguide, this paper combines the geometric dimensions with it to study the influence of the loss. A new method for calculating the loss coefficient caused by the bending of the waveguide: the effective refractive index method with fixed interference correction. Through this method, the relationship between the bending loss coefficient and the width, height and radius of curvature of the dielectric waveguide is analyzed and calculated. Compare the calculation result with the result calculated by the pattern analysis method. Finally, the results were discussed and analyzed. The conformal transformation method and the normalization method of the geometrical size to the bending loss of the waveguide are analyzed, the relationship between the bending geometrical size of the curved narrow slot waveguide and the bending loss is obtained, and the empirical formula for the bending loss is established. From the formula, four Curves of waveguide bending size and bending loss of a common material. Experimental research results show that with the improvement of bending waveguide loss theory and coupling mechanism, low-loss transmission can be achieved under small bending dimensions, so that the integration of overall geometrical dimensions is the development trend of bending.
Slotsuppression of Scattering Loss in the Side Wall of Bent Slot Waveguide
Authors: Jiang Yi , Yue Jinying , Gao Jinyu , Xu Jing 
Published: November 2020

Abstract
With the higher requirements of advanced integrated circuit technology, waveguides can propagate electromagnetic waves with higher frequencies, such as millimeter waves and centimeter waves, and have a large power capacity, which makes waveguides a common transmission line in the microwave band. In this experiment, based on the research of the curved slot waveguide, the method of suppressing the scattering loss of the side wall is studied. The wave optics module is used to model the optical waveguide, and the mode of the designed curved slot waveguide is analyzed, and the thickness of each layer of the optical waveguide is optimized according to the material characteristics to reduce the influence of the high refractive index substrate and reduce the curvature of the side wall Absorption of scattering loss to avoid the influence of resonance. The curved slot waveguide curved microring resonator and the curved slot waveguide racetrack microring resonator are studied, and the device performance parameters are simulated and analyzed. In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a sidewall scattering loss based on a curved slot waveguide and a preparation method. The side scattering characteristics of the waveguide multilayer memory are experimentally studied. The results show that the distribution of the scattered light intensity from the side of the waveguide along the propagation direction of the guided light exhibits an exponential decay law, and its attenuation constant is proportional to the information symbol density, and the curved slot used for recording information increases and grows.
Design of Intelligent Surveillance System for Cable Connector
Authors: Li Hongguang , Feng Xinhua , Wu Deming , Liang Lifeng 
Published: November 2020

Abstract
Cable connectors may fail after long-term use, causing serious economic losses. Modern technology has developed rapidly, and research and development of an intelligent surveillance system has been carried out under the background of big data and Internet to monitor each connector of the cable in real time, and make timely adjustments before failures to avoid the occurrence of failures, which is of great significance to modern residents and enterprises. The author analyzes the hardware required for intelligent surveillance of cable connectors, followed by the design of an intelligent surveillance system for cable connectors, and finally summarizes the operation results.
Summary and Research on Inner Surface Inspection of Automobile Brake Master Cylinder
Authors: Wang Gui-long , Yu Bo 
Published: November 2020

Abstract
In-depth analysis of the importance of the detection of the inner surface of the automobile brake master cylinder, an overview of the inspection status of the automobile brake master cylinder at home and abroad, and a detailed analysis of the detection principles and existing advantages of the current automobile brake master cylinder detection technology Disadvantages, complete the detection principle diagram of the current automobile brake master cylinder detection system, and finally discuss the research and development and economic benefits of the on-line detection system of the automobile brake master cylinder based on the integration of light, machine, electricity and calculation.
Design and Simulation of Sensor Signal Processing System
Authors: Shi Jin 
Published: November 2020

Abstract
In particular, the popularity of personal notebooks makes personal notebooks more rapid development, and sensor processors for cars, microwave ovens and other products are more useful, and have a great impact on the design of these products. Because of the rapid development of sensors, there are various sensors, which makes the data manual of these sensors have many different formats, so many sensor systems have their own the data use manual is different. There is also in the sensor acquisition of the signal process often mixed with noise and various interference signals. In order to solve this problem, many scientists at home and abroad have done a lot of research on this aspect. In this paper, compensation method, filtering method and noise suppression method are used to improve the signal-to-noise ratio and resolution of the sensor. And through the experimental practice, the results show that the sensor signal processing system can eliminate the noise, improve the signal-to-noise ratio and improve the resolution of the sensor, and also achieve good results in practical application.
Synergistic Effect of Electrochemistry and Water Treatment Agents in Cooling Water System
Authors: Chen Qiang , Chen Kang , Jiao Lili , Feng Changchun 
Published: November 2020

Abstract
The electrochemical device was combined with the water treatment agent to investigate the scale removal, and corrosion inhibition, because it was found through experiments that the descaling ability of the electrochemical device is related to the voltage of the device, and the distance between the plates, and the hardness of the water body which is the synergistic descaling rate of the electrochemical device with 2-phosphonic acid butane-1,2,4-tricarboxylic acid and sodium molybdate was 79.23%, and the scale inhibition rate was 87.34%, and the inhibition rate was 89.94% by controlling the operating conditions of the electrochemical device, the concentration factor of the system can be improved, and an effective method for saving water and energy in the circulating cooling water system is provided.
Effects of Different Light and Temperature Treatments on Seed Germination and Seedling Growth of Vegetables
Authors: Jia Xudong , Wang Ying , Jiang Jinjuan , Xiong Rui , Zhang Zhaoyun , Yang Rensheng , Cao Gaoyi 
Published: November 2020

Abstract
Vegetable refers to a kind of plant or fungus that can be used for cooking and becoming food. It provides a variety of vitamins, minerals and other nutrients necessary for human body. It is an important cash crop for people. Plant growth and development is greatly affected by light and temperature conditions, especially vegetables will directly affect the economic benefits. To explore light temperature conditions on the vegetable seed crop growth and development, the influence of this experiment will by creating the light of the different temperature conditions on the Thai water convolvulus, Tianjin 60 Chinese cabbage, Celandine wheat and precocious 8, four kinds of vegetable seeds processing, temperature different light on the conditions of the four kinds of vegetable seeds and seedling bud rate, root weight. Two experiments, respectively, set up four controls, the results showed that different vegetable seeds need appropriate illumination and temperature conditions vary, but most of the germination rate and grew well in about 25 °C, 18 hours of light and dark 6 hours under the condition of the most suitable for their growth.
The Study of Tidal Currents as Renewable Energy in Kelabat Bay, Bangka Belitung
Authors: Pamungkas A , Jumnahdi M 
Published: November 2020

Abstract
The rapid economic and population growth triggers a high demand for energy in Indonesia. This condition urges us to innovate in renewable energy which sustainable and environmentally friendly. One promising renewable energy is the tidal current energy which very potential in the island regions, such as Bangka Belitung Province. Kelabat Bay, which located in northern part of Bangka Island is a semi-closed waters and has a shallow and narrow gap in its center which separate Teluk Kelabat Luar (TKL) and Teluk Kelabat Dalam (TKD) region, which become the focus region in this research. This geographical condition allows potential energy amplification when the tides occur. Thus, this research aims to assess the potential energy of tidal currents as renewable energy in Kelabat Bay, especially at its narrow gap. The method used in this study was the numerical modelling using MIKE21 software and direct measurement to obtain tides and currents both in toward high tide and low tide condition. The current profile in Kelabat Bay is very influenced by the tidal which flow from TKL to TKD when toward high tide and vice versa toward low tide. The highest speed is measured at 15 meter depth on point 1 with speed up to 1.43 m/s. By this speed, it could be estimated 1494 watt of tidal current energy will be generated. This huge energy potential of tidal current at Kelabat Bay could be exploited to produce electricity in future works.
The effect of deproteinization temperature and NaOH concentration on deacetylation step in optimizing extraction of chitosan from shrimp shells waste
Authors: Aldila H , Asmar  , Fabiani V A , Dalimunthe D Y , Irwanto R 
Published: November 2020

Abstract
Chitosan have been successfully produced from the dried shrimp home industry waste (Bangka, Indonesia). Extraction of chitosan was carried out in four steps: deproteinization, demineralization, decolorization and deacetylation of chitin. The effect of deproteinization temperature and NaOH concentration on deacetylation process was studied. The results shown that the increase of deproteinization from 30°C to 90°C causes the decrease of chitosan deacetylation degree (DD). The increase of deproteinization temperature triggers excess depolymerization which damages the chitin structure so that it has a negative effect on the chitosan DD. On the other hand, the increase of NaOH concentration from 20% to 60%, the chitosan DD increased. The diffusion rate of OH” causes increment of OH” attack to the amino group thus realizing the effective deacetylation of chitin. The highest chitosan DD was up to 88.89% is achieved under the optimized conditions of this process and the occurrence of deacetylation structurally demonstrated by the Fourier transform infrared (FTIR) characterization
Characteristics of harmonic distortion and disturbance in frequency 9-150 kHz of the grid-connected rooftop photovoltaic system for various types non-linear household loads
Authors: Marganda N , Sudiarto B 
Published: November 2020

Abstract
The usage of Photovoltaic (PV) energy system as a solar power plant has been growing rapidly in the world, because it is clean without emitting greenhouse gasses. The rapid development of power electronics technology has an impact in the development of PV system and the usage of non-linear household appliances that use inverter technology. In PV system, an inverter is used to convert direct current (DC) power from sunlight to alternating current (AC). Inverters usually have a switching rate higher than 1 kHz, which may cause waveform distortions and disturbances in AC power output, such as harmonics and disturbance in the frequency range 9-150 kHz. These disturbances may affect the performance of equipment, as well as neighbor equipment connected to the same network. This research is focused on analyzing the effect of current flowing in the non-linear household loads (induction cooker and compact fluorescent lamp) to the harmonics distortion (THDi, TDDi and harmonic voltage distortion) and disturbance in frequency 9-150 kHz on the Grid-connected Rooftop PV System by conducting laboratory measurement using a computer-based oscilloscope and power quality analyzer. The results show that the variation of current flowing in the equipment affects the harmonics distortion and disturbance in frequency 9-150 kHz.
Forecasting electricity consumers and consumption in 2019-2050 to prevent electricity waste and reduce use of fossil fuels
Authors: Suriyadi  , Puriza M Y , Arkan F , Yandi W , Tiandho Y , Siregar E M 
Published: November 2020

Abstract
Electricity demand of Bangka Belitung Islands Province from time to time always increases. This is caused by the fact that electricity has become an important part of human civilization in various fields including the fields of economy, technology, social and human culture. Electricity distribution to consumers must be optimal in accordance with the needs of the community and industry. Problems will arise if the power sent from a power plant is far greater than the demand at the load, there will be an energy waste in the electricity company and a swelling use of fossil energy as a fuel generator because most of the power plants in Bangka Belitung Islands Province use fossil energy. To avoid these problems, we need a forecast method. This study used the least square method and linear regression that produces electricity consumers and electricity consumption forecasts in Bangka Belitung Islands Province in 2050 which is estimated to be 3,412554 GWh with an average increase of 3.7% every year.
Optimized configuration of photovoltaic and battery energy storage system (BESS) in an isolated grid: a case study of Eastern Indonesia
Authors: Azahra A , Syahindra K D , Aryani D R , Jufri F H , Ardita I M 
Published: November 2020

Abstract
Most power systems in the east of Indonesia require only small capacities which are supplied by diesel generators, especially in the area of small islands which are suitable for isolated grid. On the other hand, Indonesia has a high potential for solar energy which can be employed to supplement the power generation as well as to reduce the cost of energy (COE). However, the utilization of solar energy through the photovoltaic (PV) system might cause stability problems. The battery energy storage system (BESS) has been recognized for its capability to overcome stability issues. Still, the adoption of a hybrid PV system and BESS requires considerable capital investment, which may cause the COE to increase. This study identifies the optimal hybrid configuration of the diesel power plant, PV system, and BESS to maximize economic profit when compared to diesel power plants of an isolated grid in Indonesia. COE is used as an economic parameter to determine the most optimal capacities of the PV system and BESS. The simulation results show that the proposed hybrid configuration has a lower COE compared to diesel power plants, which are below 20.81 cents USD[1].
Techno-economic analysis of remote microgrid and high voltage interconnected grid development in isolated area
Authors: Putra A Y , Sudiarto B , Setiabudy R 
Published: November 2020

Abstract
Seram Island is one of the thousand islands in Indonesia. Due to geographical condition, the power system in Seram Island is currently remain isolated. However, based on Electricity Power Supply Business Plan (RUPTL) 2019-2028, there are power system development plan including 150 kV interconnected grid and several medium-sized power plant in this island. Unfortunately, as demand growth is low, reserve margin in related system tend to be very high, with the average of 182% from year 2019 to 2028. With this circumstance, the development plan based on RUPTL 2019-2028 will not be viable both technically and economically. This study will analyze remote microgrid development as an alternative to high voltage interconnected grid in order to perceive optimum configuration for Seram Island. These two alternatives will be compared both technically and economically. Technical analysis will be conducted using software ETAP 12.6 to investigate power quality and system stability. For economical analysis, several economics parameter will be evaluated as well as Levelized Cost of Electricity (LCOE) to perceive the most economically viable alternative. The result shows that remote microgrid is economically more beneficial to be developed in Seram Island, as well as complying the minimum technical requirement of local grid code.
Power system stability improvement using Battery Energy Storage System (BESS) in isolated grid
Authors: Tsany F N , Widayat A A , Aryani D R , Jufri F H , Ardita I M 
Published: November 2020

Abstract
Rural areas and islands distant from main power grids mostly rely on diesel fuel for electricity generations, which assembles an isolated network. In eastern Indonesia, these isolated grids began to hybridize with solar photovoltaic (PV) systems to reduce the generation costs. However, the penetration of solar PV systems has risen one crucial problem related to the power system stability due to its output intermittency and variability. The Battery Energy Storage System (BESS) can be utilized as a frequency regulator so that the system stability can be maintained well. Besides, BESS can also function as an energy arbitrage so that the target of generation costs saving can also be achieved. This study analyzes the effectiveness of BESS utilization to reduce the stability issues of an isolated grid consisting of diesel generators and PV systems in eastern Indonesia by using PowerFactory software. The scenario of the daily operating pattern of each component is simulated as well by considering the optimal solar PV system and BESS capacity.
Optimization and comparative analysis for a stand-alone hybrid model of PV, wind turbine, and natural gas generator system in remote area – A case study in Belu
Authors: Kevin  , Noor V P , Jufri F H , Naradhipa A M , Utomo A R 
Published: November 2020

Abstract
This paper proposes a hybrid model of photovoltaic (PV) and wind power generation based on the off-grid system for the rural area. The off-grid system is considered more suitable to be applied in the remote area since it has a lack of access to the closest grid network. Belu (9°10.5‘N and 124°59.4'E), Indonesia, is chosen particularly as the model due to its high potential resources of renewable energy. The data on wind and solar resources are obtained from Meteonorm. The system schematic consists of the wind turbine, photovoltaic (PV), battery, converter and electrical load. A small-size natural gas generator is used as the back-up. The data is processed by using HOMER Optimizer based on the derivative-free algorithm. The total Net Present Cost (NPC) and the Levelized Cost of Energy (LCOE) for the optimized system configuration are $95,828 and $0.106, respectively. The performance of the system is represented by the percentage value of the excess electricity and unmet electric load which are 13% and 0.39%, respectively. The carbon dioxide produced is only 10,070 kg/year. In general, the optimized system is much better compared to the generator-only system based on the economical, electrical, and environmental aspects.
Techno-economic analysis of hybrid Diesel-PV-Battery system and hybrid Diesel-PV-Wind-Battery system in Eastern Indonesia
Authors: Nugroho O V , Pramono N F , Hanafi M P , Husnayain F , Utomo A R 
Published: November 2020

Abstract
Generally, remote areas in Indonesia apply diesel power plants to provide electricity due to the high cost of grid extensions. The concern of the use of standalone diesel generators is fluctuations in the price of fuel oil, as well as gas emissions resulting from the remnants of combustion. To reduce the use of fossil fuels, it is necessary to use renewable energy which has the potential to be configured hybrid with a diesel generator. This study will discuss the techno and economic analysis of two different hybrid system configurations using the HOMER software. Those hybrid systems are consisting of diesel-PV-battery system and diesel-PV-wind turbine -battery system. There is a reduction in the cost of energy (COE) as the proposed hybrid system is compared with the existing diesel generator system. The COE of the existing system is $ 0.1968 I kWh, whereas the proposed hybrid diesel-PV-battery system and the hybrid diesel-PV-wind turbine-battery system are $ 0.1554 I kWh and $ 0.1555 I kWh, respectively. These optimized results show a reduction in fuel consumption for both hybrid systems configuration by 53.83% and 53.58% when compared to the existing standalone diesel generators. Thus, both hybrid systems have a lower Net Present Cost value of 21.04% and 20.99% when compared to the current standalone diesel generator system. On the other hand, CO2 emissions generated by the two-hybrid system configurations have decreased compared to standalone diesel generators, which were 53.83% and 53.57%, accordingly.
Magnetotelluric method aplication for conceptual modelling of geothermal system Pariangan West Sumatera
Authors: Kusmita T , Fath A M , N MZ , Joni W 
Published: November 2020

Abstract
Geological structures on Pariangan is influenced by the tectonic activities of the Sumatera Fault System, volcanic arc of Complex Mt. Marapi and Central Sumatera Basin, stratigraphy of this area was dominated by andesitic-basaltic lava and pyroclastic rocks (Quaternary). This study purpose to determine of geological structures, and heat source location of geothermal system in this area using Magnetotelluric Method (MT). 2-D resistivity model from MT method was combined with geological map for the conceptual models of geothermal system. Based on conceptual model, geothermal system in area was controlled by a couple of main fractures. These fractures are associated with faults in the northwest-southeast and southwest-northeast directions on geological map. It’s also influenced the surface manifestation (e.g hot springs) and alteration mineral zone. Heat source was composed by metamorphic rock (slite rock and granit rock) at 1500-4000 musl as based rock. This heat source associated with activities of MT. Marapi.