bluuebunny/crossref_metadata_2025_split huggingface dataset:
Study on the Field-effect Carrier Transport of Epitaxial Graphene on SiC
Authors: Cao Jiaji , Wei Shuhua , Jin Zhi , Peng Songang , Zhang Jing , Chen Xiufang 
Published: April 2022

Abstract
We have studied the field-effect carrier transport of graphene on 4H silicon carbide substrate. In order to extract the electrical parameters, the top-gated field effect transistor has been fabricated. By fitting the measured results with Kim’s model, the field effect carrier mobility (µ) and the metal/graphene contact resistance (Rc) and the residual carrier concentration (n0) are derived to be 3382cm2/Vs, 2250Ω▪µm and 2.18×1013cm-2, respectively. It is noted that the large contact resistance did not affect the high field effect carrier mobility of our device. The high carrier mobility suggests that the SiC epitaxial graphene may be quite suitable for the future high speed electronic applications.
Properties Study of Trackless Tack Coat Materials
Authors: Geng Binbin , Wang Jia , Pu Changyu 
Published: April 2022

Abstract
The softening point of evaporation residue of ordinary emulsified asphalt is low, which is adhered to the wheel during construction and cannot play the role of interlayer bonding. The author prepared Trackless tack coat materials by base asphalt with higher softening point and modifier with improved high temperature performance, thus the softening point of evaporation residue of emulsified asphalt is improved. Its physical and chemical properties were analyzed and compared with two kinds of emulsified asphalt. Under the condition that the physical and chemical properties remain unchanged, it has obvious effect of non-sticking wheel. The interlaminar shear and pull-out tests were carried out to study the bonding performance of three kinds of emulsified asphalt. The influence degree of different temperatures on the bonding performance of emulsified asphalt was analyzed, and the bonding performance was compared and analyzed, Trackless tack coat materials layer bond strength is higher, applicable to a wider range of conditions. Through various performance test analysis, it is shown that Trackless tack coat materials meets the requirements of the specification, has excellent interlayer bonding performance, and has a better effect of non-stick wheels.
Design and Application of a β-γ Coincidence Measurement System Based on Digital Technology
Authors: Wang Yu , Qin Guoxiu , Zhang Xiaohui , Cui Jiarui 
Published: April 2022

Abstract
In order to reduce the uncertainty of coincidence measurement, a β-γ coincidence measurement system based on digital technology is designed. The system consists of data acquisition hardware and data analysis software. It uses the data acquisition card to collect data from the detector, and then finish the dead time correction, coincidence resolving time correction and efficiency extrapolation necessary for coincidence measurement on the computer. The designed coincidence measurement system is used to measure 60Co standard source in the laboratory, and adopt two efficiency extrapolation methods to process the measurement results. The results show that the deviation of the activity of 60Co standard source measured using the designed coincidence system from the value measured using a standard device is less than 0.5%.
Radar Emitter Identification Based on Spectral Resemblance Coefficient
Authors: Wang Lei , Zhang Zhiyong , Zeng Weigui , Chen Meishan 
Published: April 2022

Abstract
The traditional radar emitter identification method based on the five parameters of the pulse is difficult to achieve the desired effect in today’s abnormally dense electromagnetic environment. Modern radars often impose intentional modulation in the signal to improve the anti-jamming and low interception performance. Therefore, a radar emitter identification method based on the spectrum resemblance coefficient is proposed in this paper, which reflects the approximation degree between the signal spectrum and various basis functions by calculating the resemblance coefficients between them. Simulation results show that the method proposed in this paper has strong anti-interference capability and can effectively distinguish different types of intra-pulse modulated radar signals.
Evaluation Means of Oil-paper Insulation’s Water Based on DC Conductivity
Authors: Zhang Shaoming , Zhang Chenjun , Lin Jinhuang , Yu Haoyi 
Published: April 2022

Abstract
Abstract.The measured spectral line based on frequency domain dielectric spectrum contains multiple superpositions of conductance and polarization processes. In view of the lack of methods to separate the polarization and the conductance processes and the lack of unique methods to characterize the model conductance parameters, the micro conductance processes are studied in depth according to the real and imaginary Kramers-Kronig relation. Firstly, different water content insulation samples were prepared during the laboratory conditions, and dielectric lines in frequency domain were obtained by measurement. Secondly, according to the k-K relation, the relaxation loss spectrum line is obtained by numerical integration of the measured real part of the complex polarization spectrum line, and then the conductivity loss spectrum line is obtained. Finally, the least square method is used to fit the conductivity spectrum line and calculate the conductivity value. The experimental results show that the conductance of the virtual part of the repolarization measurement can be separated from the relaxation loss line by k-K transformation, and the dc conductance can be calculated. At the same time,with the oil-paper insulating sample’s water content increasing, its electrical conductivity is gradually enhanced.
Analytical and Measurement-Based Method for Diagnosing the Fault of Channels in TSV-Based 3D ICs
Authors: Qu Chenbing , Zheng Linting , Wang Liwei , Sun Chen 
Published: April 2022

Abstract
Three-dimensional integrated circuits (3D ICs) based on through silicon via (TSV) technology can effectively solve many bottlenecks in the development of ICs. It has rapidly developed into a key cutting-edge technology representing the medium and long-term sustainable development of microelectronics industry. Process fluctuation causes TSV process defects, resulting in the change of structural parameters of RDL and TSV interconnection structure. Finally, it leads to the degradation of performance parameters and functional failure of 3D interconnection and devices. Aiming at the high-resistance and open-circuited faults of 3D ICs, this paper develops an analysis method based on micro nano machining and detection technology. The electrical characteristics and images of typical chain TSV interconnections are analyzed by scanning electron microscope high-resolution imaging. The mechanism of fault diagnosis is based on potential difference and electron transfer.
Terminal Security Monitoring Based on Power Consumption Information
Authors: Chi Yuehan , Cheng Yushi , Ji Xiaoyu 
Published: April 2022

Abstract
The application of information technology in many fields is becoming more and more popular, but while bringing about a rapid increase in productivity, it also brings some safety issues, especially in industrial control systems. Since the industrial control system often uses a computer as the control center of some devices, once this computer is attacked, it will cause serious harm. The use of additional security software for security monitoring is not completely credible, after all, security monitoring software will also be attacked and become invalid. Therefore, the method of using some side channels and machine learning is very popular recently, especially the power consumption side channels. However, the power consumption will change with the running time of the device. If the model trained by supervised learning will fail after a few days, this paper proposes a self-learning method based on the power consumption side channel, which can be stable for a long time with a high accuracy of 97%.
Seek of Polishing Transmission Efficiency Based on Modeling over Wireless Charging
Authors: Shao Fei 
Published: April 2022

Abstract
Among electric vehicle charging technologies, wireless charging technology is undoubtedly a most convenient method, also needless to get refreshed and repaired as wires do. Nevertheless, it has long been a tough issue that the efficiency remains low, which causes great waste and too much heat even add to the possibility of fire emergency. Due to low charging efficiency and non-universal charging equipment, wireless charging equipment for electric vehicles has not been effectively promoted. Based on this, integrated circuit theory and electromagnetic field equation, this paper established electromagnetic coupling wireless charging circuit model, based on this model, the maximum wireless charging power transmission efficiency and the maximum horizontal offset and other issues are studied.
A Multi-mode Power Management Method for Aircraft Convolution
Authors: Cai Wenjie , Tian Feng , Shi Dongqiang , Liu Hedong 
Published: April 2022

Abstract
In order to realize the management of the aircraft, it is suitable for the long-term management operation of the aircraft. In this paper, a multi-mode management method for aircraft based on convolution prediction is proposed. Firstly, the historical consumption data of the system over time is collected, and its idle time is sorted into time-dependent historical input data. Secondly, the consumption prediction model based on convolution is established. The historical idle time series of the systemt is input, and the system is output to predict the idle time series. Finally, according to the difference between idle time and mode switching balance time, the corresponding management multi-mode switching is performed.
The qualification of GEM detector and its application to imaging
Authors: Ahmed A. , Kumar A. , Naimuddin Md. , Babij M. , Bielowka P. 
Published: April 2022

Abstract
The Gas Electron Multiplier (GEM) is a new age detector,
which can handle the high flux of particles. The GEM foil, which is
constructed using 50 μm highly insulating foil
(Kapton/Apical) coated with 5 μm layers of copper, on both
sides, with a network of specifically shaped holes is the major
component of these detectors. The European Center for Nuclear
Research (CERN) has been the sole supplier of the GEM foils until
recently when a few other companies started manufacturing GEM foils
under the transfer of technology (TOT) agrement from CERN. Techtra
is one such company in Europe which gained a right to use CERN
developed technology in order to produce commercially viable GEM
foils. Micropack Pvt. Ltd. is another company in India which has
successfully manufactured good quality GEM foils. Due to the
microscopic structure of holes and dependence on the electric field
inside, it becomes essential to study the defect and uniformity of
holes along with the electrical property of foils under ambient
conditions. In this work we are reporting the tests condition of
Techtra GEM foils. We report on the development of a cost effective
and efficient technique to study the GEM foils holes geometry,
distribution, and defects. We also report on the electrical
properties of these foils like leakage current, stability, and
discharges. At the detector level, we describe the high voltage (HV)
response, gain, uniformity, and stability. The GEMs have been
proposed to have a wider applications, so we performed a feasibility
study to utilize these for the imaging. We irrediated various
objects of varying density with X-rays and reconstructed the
images. The reconstructed image shows a good distinction between
materials of different densities, which can be very useful in
various applications like medical imaging or cargo imaging.
Climate change will increase aflatoxin presence in US Corn
Authors: Yu Jina , Hennessy David A , Tack Jesse , Wu Felicia 
Published: April 2022

AbstractThe impacts of climate change on agricultural production are a global concern and have already begun to occur (Kawasaki 2018Am. J. Agric. Econ.101172–92; Ortiz-Bobeaet al2021Nat. Clim. Change11306–12), with major drivers including warmer temperatures and the occurrence of extreme weather events (Lobell and Field 2007Environ. Res. Lett.2014002; Challinoret al2014Nat. Clim. Change4287; Rosenzweiget al2001Glob. Change Hum. Health290–104; Schlenker and Roberts 2009Proc. Natl Acad. Sci. USA10615594–8; Lobellet al2014Science344516–9; Ortiz-Bobeaet al2019Environ. Res. Lett.14064003). An important dimension of the climate change-crop yield relationship that has often been overlooked in the empirical literature is the influence that warming temperatures can have on plant damage arriving through biotic channels, such as pest infestation or fungal infection (Rosenzweiget al2001Glob. Change Hum. Health290–104). Aflatoxins are carcinogenic chemicals produced by the fungiAspergillus flavusandA. parasiticus,which commonly infect food crops. Currently, in the United States, aflatoxin is a perennial contaminant in corn grown in the South, but rare in the Corn Belt and northern states. Climate change may expand aflatoxin’s geographical prevalence, however; because hot, dry summers promote aflatoxin accumulation. Here we model aflatoxin risk as a function of corn plant growth stages and weather to predict US regions with high aflatoxin risk in 2031–2040, based on 16 climate change models. Our results suggest that over 89.5% of corn-growing counties in 15 states, including the Corn Belt, will experience increased aflatoxin contamination in 2031–2040 compared to 2011–2020. Interestingly, the results are spatially heterogeneous and include several southern counties expected to have lower aflatoxin risk, because the causative fungi become inactivated at very high temperatures.
Passive cooling performance on Indonesia contemporary tropical facade in producing the present comfortable space
Authors: Nugroho A M 
Published: April 2022

Abstract
This paper investigates passive cooling solutions on an Indonesia Contemporary House in response to housing challenges in dense urban areas. The research approach involves detecting temperature and humidity in current settings, then using ventilated and bioclimatic facade to reduce the room’s temperature and compare it to its neutral temperature value. The bioclimatic facade has the best performance, lowering the temperature by 2.5°C when compared to the ventilated wall, which reduced the temperature by 2.2°C. Passive cooling techniques, such as bioclimatic and ventilated facade applications, can create a comfortable space all day long.
Influence of landscape material properties on microclimate change in a tropical area with case in Manado City
Authors: Sangkertadi S , Syafriny R , Wuisang C E V , Zahra Z 
Published: April 2022

Abstract
The objective of this research is to show the influence of thermal properties of landscape materials on microclimate change of tropical environment in the city of Manado. The microclimatic variables of this study include surface temperature, air temperature, and solar radiation. The landscape materials as object of the research were bricks, hard-soil, concrete-block, trees, and garden-pond water. The research used descriptive quantitative method. Measurement of thermo-physical characteristic of brick and paving stone were conducted by using calorimeter and quick-thermal-conductivity meter. Measurements of solar radiation, and temperatures were also performed in a commercial area in Manado city. Calculations of heat exchanges were realized by using HEAT2 computer program in order to evaluate magnitude of surface temperature of various landscape materials. The results show that a dense leaves tree can reduce solar radiation in its shade by up to 80% at a mid-daytime. The landscape materials of red brick, light concrete-block and hard soil can cause a surface temperature by up to 50 °C under a clear open sky. Water surface temperature of garden pond can also reach 50 °C, while at a depth 50 cm can decrease to 25 °C.
Measurement and calculation of indoor climate of swallow’s nests house in Minahasa
Authors: Lambey L J , Sangkertadi  , Regar M , Syafriny R , Umboh S J K 
Published: April 2022

Abstract
Swallow birds (Collocalia fuciphaga) are found in many islands in Indonesia. In general, swallows like sites which are warm and humid for their house and making nests. Swallow’s nest is a product of high economic value. Many people are interested in building houses for swallow to gain profit from the nest. The aim of the study is to describe the thermophysical characteristics of building materials of the house, and its indoor air temperature. The methodology used is descriptive analysis. The study includes measurements of outdoor and indoor climate variables which are air temperature, surface temperature and humidity. Identification of thermophysical material include heat specific capacity, thermal conductivity and density of wall and roof material. The results of climatic measurements carried out on 7 and 8 May 2021 in Minahasa showed that the indoor temperature was in the range of 25 to 27 °C, and relative humidity of around 84 to 85 %. Geometric and thermophysical modelling were made for simulation calculations by using HEAT2 software. The calculation results show that the distribution of indoor air temperature is in range of 25.6 to 25.8 °C, where in average there is a difference of about 0.5 °C lower than the measurement results.
Arranging here and there: A microlens observation on domestic waste separation
Authors: Karimah A , Suryantini R , Harahap M M Y 
Published: April 2022

Abstract
This paper explores ease of access in the spatial practice of domestic waste separation. Such an ease was observed by investigating how foodstuff is arranged, here and there, as an attempt to bring order. In the process of separating the foodstuff waste, the inhabitant’s body-her position, movement, and technical gestures–interrelates with the foodstuff, utensils, and the surrounding spaces become crucial aspects. Arguably, performing such a spatial practice boosts the inhabitant’s convenience, thus encouraging sustainable waste separation in domestic settings. In particular, this paper employs a microlens observation with a qualitative approach to dismantle the spatiality of the everyday domestic waste separation practice. The findings suggest dimension and adjustability are the essential measurable aspects in obtaining the desired convenience. Such a role raises the awareness for considering ergonomics for obtaining ease of access in separating waste. It drives the utilisations of particular portable objects and working surfaces, to assist in separating waste conveniently throughout the phases of bringing order. Notably, the temporary placement of wanted and unwanted foodstuff parts signifies the arrangement of here and there in such ways. Therefore, these findings expand the discussion of ergonomics, towards a sustained practice of waste treatment.
Impregnation analysis of phenol-formaldehyde resin on sengon wood to explore the potential of sengon wood as construction material
Authors: Birrnaqiy A A , Basyaruddin  , Malik J 
Published: April 2022

Abstract
The current climate emergency is a growing concern, while construction activities are one of the biggest causes. Therefore, research is needed that leads to the application of construction with environmentally friendly materials such as wood. In this study, the wood used is sengon wood (Falcataria moluccana) because it has very abundant availability. However, sengon wood has low strength and durability, so treatment is needed to improve the quality of sengon wood so that its potential can be utilized. There were seven test variables, namely untreated sengon sawn wood, vacuum pressure impregnation with 5%, 10%, 15% phenol-formaldehyde (PF) resin solution, cold immersion impregnation with 5%, 10%, and 15% PF. The results of this study showed that treatment of cold immersion concentrate PF 10% increases tensile strength parallel to fibre up to 91.5%, the biggest increase in value against one of the mechanical properties, but to improve the mechanical properties of the highest average is variable B with vacuum pressure treatment of concentrates 5% with the increase up to 9.1%. Regardless of the comparison of these variables, that the value of the mechanical properties of sengon wood as sawn wood without treatment already has the potential to be used as a construction material compared to the value of the lowest strength class of construction sawn wood material. According to this research, the average density of sengon wood is about 300 kg/m3 which tends to be categorized as a lightweight construction material, where the concept of a lightweight structure can trigger increased innovation in creating more varied architectural and structural designs.
Light as medium for time manipulation of Start-Up-Online-Shop office building
Authors: Firliani Z R , Ekasiwi S N N 
Published: April 2022

Abstract
Information and communication technology are multiplying in this era and impacting work-life balance. The discussion starts with issue related to perception of time in work life. People’s perception of time can be faster or slower due to their work environment or the activities they do. Work-life balance become blurred because many workers in big city work more than they should do. Previous research compares this phenomenon with the experience living in space. Based on it, comes a question whether architectural design can substitute timer in a work environment. In this paper, we propose an approach for start-up office with the concept time manipulation using light as medium to influence people’s perception of time. The goal is to influence people’s perception of time and increase productivity in work environment. The theory that used in this paper discusses about relationship between architecture and time and discuss the designer’s approach from design process. The design concept related to the theory then tested on human perception and applied on architectural syntax of building. Using concept-based framework with domain transfer to represent movement of time in building design through experience of space. The design prioritizes the psychology and value of time of the workers.