bluuebunny/crossref_metadata_2025_split huggingface dataset:
Improved grey correlation theory to quantitatively characterize the effect of pore parameters on compressive strength of cement Pisha sandstone
Authors: Liu Xin , Li Yu , Jing Yu , Wu Yue , Lv Xin , Wang Qiang , Geng Kaiqiang 
Published: April 2021

Abstract
In order to objectively characterize the correlation degree of the influence of different pore parameters of cement solidified soft rock on compressive strength. The initial data of pore parameters and compressive strength are normalized by five different dimensionless methods, and the correlation degree of each parameter is calculated. Based on the mode theory and spearman theory, an improved grey correlation calculation model is established to evaluate the correlation degree of pore parameters. The results show that the correlation degree between pore parameters and compressive strength of cement Pisha sandstone is in the following order: >0~0.1μm aperture ratio, bound fluid index, >1μm aperture ratio, free fluid index, T2 spectrum area, porosity and >0.1~1μm aperture ratio. The spearman rank correlation coefficients of sample C4 were 0.964, 0.536, 0.893 and 0.964 respectively; The spearman rank correlation coefficients of sample C7 were 0.964, 0.607, 0.964 and 0.893 respectively. It can be seen that “ Range Analysis “ is the best normalization method among the five dimensionless methods, and its evaluation results are most in line with the actual situation. This study provides a new mathematical method for quantitatively characterizing the grey correlation effect of pore parameters of cement-based materials on compressive strength.
Effect of Carboxyl Content on the Performance of Carboxylated Graphene/Chitosan Leather Finishing Agent
Authors: Yao Qingda , Yuan Linlin , Liang Yongxian , Wang Xiaozhuo , Wen Huitao , Dan Weihua 
Published: April 2021

Abstract
Graphene oxide was modified with bromoacetic acid, and then carboxylated graphene was prepared, and its basic structure was characterized by infrared spectroscopy; then chitosan was used as a matrix, carboxylated graphene was used as a filler, and the solution blending method was used to prepare carboxylated graphene/chitosan composite leather finishing agent. The results of this study indicate that the content of carboxyl groups increased with the increase in the amount of bromoacetic acid, so was their stability. The crosslinking degree of carboxylated graphene/chitosan also increased with the increase of carboxyl content. The increase of the carboxyl content also improved the hydrophilicity and solvent resistance of the composite; the carboxylated graphene/chitosan composite with the carboxyl content of 6.48 mmol/L had the best physical and mechanical properties. At the same time, abrasion resistance can be increased to level 4, dry rub resistance to level 5, and wet rub resistance to level 4-5.
Design and first tests of the Gotthard-II readout ASIC for the European X-ray Free-Electron Laser
Authors: Zhang J. , Andrä M. , Barten R. , Bergamaschi A. , Brückner M. , Chiriotti-Alvarez S. , Dinapoli R. , Fröjdh E. , Greiffenberg D. , Kozlowski P. , Kuster M. , Lopez-Cuenca C. , Meyer M. , Mezza D. , Mozzanica A. , Ramilli M. , Ruder C. , Schmitt B. , Shi X. , Thattil D. , Tinti G. , Turcato M. , Vetter S. 
Published: April 2021

Abstract
Gotthard-II is a charge-integrating microstrip detector developed for experiments and diagnostics at free-electron lasers using hard X-rays of 5 keV–20 keV. Thanks to its excellent single photon sensitivity, large dynamic range as well as high frame rate of 4.5 MHz in burst mode, its potential scientific applications include X-ray absorption/emission spectroscopy, hard X-ray high resolution single-shot spectrometry (HiREX), beam diagnostics, as well as veto signal generation for pixel detectors. The Gotthard-II ASIC has been designed and fabricated using UMC-110 nm technology. The final ASIC design and performance in terms of noise, linearity, dynamic range, coupling between channels and speed will be discussed in the paper. In addition, a first measurement of an X-ray absorption spectrum of a standard copper sample has been done. The performance of the Gotthard-II in an experiment using energy dispersive X-rays has been demonstrated.
Association between exposure to ambient particulate matters and risks of autism spectrum disorder in children: a systematic review and exposure-response meta-analysis
Authors: Lin Cheng-Kuan , Chang Yuan-Ting , Lee Fu-Shiuan , Chen Szu-Ta , Christiani David 
Published: April 2021

Abstract
The impact of prenatal and early childhood exposure of ambient particulate matters (PMs) on the risk of autism spectrum disorder (ASD) in children remained inconclusive, particularly at low levels below current National Ambient Air Quality Standards. The study summarizes the epidemiological association between PM exposure and risks of ASD in children. PubMed, Embase, Web of Science, Cochrane Library, Compendex, Biosis Previews, and Agricultural & Environmental Science Databases for studies published before February 2020. Original studies with the following information were included: (a) exposure of ambient PM (including PM2.5 and/or PM10); (b) ASD as the outcome of interest in children; (c) effect estimates of relative risk (RR), odds ratio (OR), or hazard ratio. The risks of ASD are summarized at different exposure windows (i.e. first, second, third trimesters, and early childhood period) by using a random-effects model. Exposure-response meta-regression was performed across various background levels of PM2.5. We used Newcastle–Ottawa Scale for quality assessment. Eleven studies (two cohort and nine case-control studies) and 313 301 children were enrolled. Overall, the risk of ASD increased by 64% (pooled RR = 1.64, 95% CI = 1.16–2.34) and 31% (pooled RR = 1.31, 95% CI = 1.08–1.58), with exposure to 10 μg m−3 increment of PM2.5 during early childhood and prenatal periods, respectively. Stratifying by three trimesters of prenatal period, the risk of ASD increased 35% per 10 μg m−3 difference of PM2.5 exposure during the third trimester (pooled RR = 1.35, 95% CI = 1.18–1.55), but not during the first and second trimesters. The risks of ASD persisted at the background PM2.5 levels from 8 μg m−3 (pooled RR = 1.30, 95% CI = 1.02–1.66) and onward. Our findings suggested an association between PM2.5 exposure and risks of ASD, particularly within specific exposure windows, even at low background levels of PM2.5.
The impact of deforestation on rainfall in Africa: a data-driven assessment
Authors: Duku Confidence , Hein Lars 
Published: April 2021

Abstract
Forests play an important role in maintaining rainfall patterns worldwide by recycling water back to the atmosphere through evapotranspiration. We present a novel spatiotemporal data-driven model and assessment of the impacts of various deforestation scenarios on rainfall patterns in sub-Saharan Africa, where rainfed agriculture is the main source of income and provides food for a large part of the population. Our model is based on the convolutional long short term memory neural network and uses a combination of climate and vegetation time-series data to predict rainfall and to perform simulation experiments. Our results show that complete deforestation (i.e. conversion of all humid forests to short grasslands) would greatly reduce rainfall magnitude in the deforested areas. Above the equator, the large majority of areas not currently forested would also receive less rainfall. However, complete deforestation would slightly increase rainfall in some parts of Southern Africa and decrease it in other parts. The impacts of partial deforestation also differ across Africa. In West Africa, even moderate tree cover loss (i.e. 30%) reduces rainfall magnitude whereas in Central and Southern Africa, a threshold of 70% tree cover loss is required to reduce rainfall magnitude. Deforestation of remaining humid rainforest areas is thus likely to dramatically affect rainfed agriculture across the continent, in particular in the maize-based cropping systems north of the equator.
Thermal Comfort Analysis of Residential Home in Coastal City Based on Physiological Equivalent Temperature (PET) Index and Operative Temperature Zone
Authors: A’yun Qurrotul , Yunardi Riky Tri , Rizqillah Satrio A. N. , Hidayati Ucik N. 
Published: April 2021

Abstract
Hot and humid tropical conditions in the coastal city have specific problems with the building thermal comfort. An important fact in creating thermal comfort is strongly influenced by two main factors that are the thermal environment and thermal balance of the human body. The differences in physical adaptation, physiological adaptation, behavior, and expectation of each human make thermal comfort varied as well. This research aim is to find out the level of thermal comfort for living home in the coastal city based on physiological equivalent temperature (PET) index and operative temperature zone. The research used simulation methods with RayMan software to analyze the thermal comfort of outdoor space and CBE Thermal Comfort to analyze the thermal comfort of indoor space. There are 4 (four) different subjects simulated in this research. The results showed that the condition could be categorized as comfortable if the thermal sensation is in a neutral position with a PET index of 20.5 – 27.0 and operative temperature zone at 22.8-28.8°C. Effective thermal comfort only happened in a short period. The 2nd floor is more comfortable for activity, and old female subjects need special attention to reach thermal comfort.
The Comparison of Energy Usage of Modular Housing using Sefaira®
Authors: Sidik Achmad Faizal , Paramita Beta , Busono Tjahyani 
Published: April 2021

Abstract
As the fourth largest population in the world with 52% urban inhabitant, housing as the most primer need, Indonesia has a significant impact on urban energy consumption. The backlog of housing in the urban area is known as much as 8%. The government tries to fulfill those needs by supplying an affordable house that requires not more than 36m2 and less than IDR 121 million The need for affordable housing occupies the largest ratio in urban areas. This is related to the middle-class family’s income structure that 21% of the total population of Indonesia. The complexity in modular affordable house design that derives from the building material, construction cost, as well as the energy consumption, later becomes the urgency of this study. This paper aims to compare simulating several modular houses with 36m2 total ground floor area, namely: 6m x 6m, 4m x 9m, and 3m x 12m module houses using metal wall cladding and Glassfibre Reinforced Cement (GRC). From these comparisons will be found modular house designs and material that have optimal energy efficiency. This paper presents modular house design. The modular house design will recommend which modules and materials will best optimize the building’s performance, thus optimizing energy efficiency based on the simulation results. Based on each material’s U-Value, a house with a GRC wall has lower energy consumption than a house with metal wall cladding because GRC has a lower U-Value.
Digital Geometry for Virtual Museum Based on Field Studies
Authors: Kristianto Thomas Ari , Ekasiwi Sri Nastiti Nugrahani , Arifianto Dhany , Ardianto Okta Putra Setio , Budianto Caesario Ari 
Published: April 2021

Abstract
The virtual museum is one direction of museum development. This digital museum allows freedom of access, number of accesses health-safety for the visitor, and security of collections. The design of the virtual museum space was developed simultaneously, to assist the presence of intellectual and emotional experiences, approaching the capabilities of conventional physical museums. Efforts to digitally reconstruct for museum space are strived continuously, by multiplying the room design variants and sharpening the attribute database. The attributes referred to here, are the geometry of the showroom platform, in the form of volume, percentage of pavilion cover, circulation, and arrangement of collections. More number of collections on digital space geometry designs and their attributes will enrich and sharpen the immersive performance of the virtual museum design in the future. This geometry data is also useful for further refining research, such as acoustic analysis and lighting design. The research method started with observation in 16 museums and exhibition galleries in East Java. The results of the observations were continued by collecting 24 variants of the general geometry design of the pavilion configuration space. The second stage is done with selection and tabulation based on similarities, to minimized repetition. At this stage, the analysis which is recorded from field observations regarding visibility, circulation comfort, and noise, was applied, so that the seven core geometric designs were obtained. Within the third stage, digital geometric drawing was created using Trimble SketchUp. Validation was done by testing the results, in the sound propagation ray-tracing software. The results of the study were seven digital geometries of the pavilion design variant. These geometries are capable of using as the basis, for developing more digital gallery or museum space design, with good quality space-visitor interaction.
Lighting Optimization for Reused Building; Case Study of PLN Convention Hall, Soekarno Hatta, Bandung
Authors: Tedjawinata Galuh Kresnadian , Jurizat Aldissain , Karlardi Alma Frida 
Published: April 2021

Abstract
Changing the function of a building can have an impact on the lighting required for the installation. This research aims to simulate and compare the need for optimal natural lighting and reduce artificial lighting in a building that functions as a Sports Hall. PLN Sports hall will be redeveloped into the PLN Convention Center Building in Soekarno Hatta Bandung. WWR is a suggestion for optimization without changing the structure and architectural aspects of the building. The analysis is based on lighting and shadow from the Energy Plus Weather File, and then these parameters are processed using honeybee to create more precise WWR variables. Lighting analysis is simulated with two building functions: namely the variable time and different ranges, following the Illumination Standards by IES and SNI. This study’s results are divided into four simulations and three various iterations where the existing conditions have an area below 300 lux as much as 93.45%. For natural lighting below 300 lux, it is 60.94%. With the placement of openings based on optimum radiation analysis, artificially below 300 lux is 2.3% (already enter the category of adequate - well lit) and a combination of under 300 lux by 0.30%. The existing conditions are categorized as underlit, iteration 1 is adequate, and iteration 2 and 3 are in the well-lit category.
Pre-Design Study of Balai Warga Kelurahan Taman Sari’s Building for Optimization Building Performance and Design Efficiency Strategies on Material Specification
Authors: Sandi M , Jayanti TB , Permatasari OI , Susilo AV , Edria G , Vincent J 
Published: April 2021

Abstract
Building performance simulation is being increasingly deployed beyond the building design phase, pre-design phase to support building operation. Specifically, the predictive feature of the simulation-assisted building systems control strategy provides distinct advantages in view how the design on building works. Strategies can be done in the pre-design phase by optimizing the energy efficiency by using the building performance simulation with several criteria such as construction materials, indoor materials, sizes of openings, air conditioning system, water management system, number of equipments used, the lighting systems, and many more. Optimization building performance and energy efficiency strategies that are evaluated through thermal performance simulating of a design are the preparatory stages that need to be carried out before the design realized. This phase is required in this project because the priority is optimization and efficiency energy though this paper using software in the pre-design design stage. The container for an activity needs to be specifically cleared and material specifications need to be detailed from roofs to floor until shading and the pre-design get the right strategy on pre-design study phase. “In this paper, we use the Sefaira plugin in the sketch-up modeling application. This application can calculate the total energy used by buildings in a year. Items that affect the total calculation (of energy) simulation are the (criteria mentioned above) material, window area, and the climate of the environment (By changing the material, window area, we are trying to improve the optimization of the energy used in this building within one year.
Migrant Workers Role in Rural-Urban Linkage, Case Study: Industrial Growth in Semarang Regency, Indonesia
Authors: Wijaya Holi Bina , Rudiarto Iwan , Hutama STEW , Wijaya Hadiyan 
Published: April 2021

Abstract
Rural-urban linkages are part of regional development concern, providing a regional network strategy to deal with the rural-urban divide issue. Industrial growth in the peri-urban area is an important activity that could bridge the linkage of rural and urban. The recent growth of the industrial sector in Semarang Regency, Indonesia, has fostered the surrounding region workers to migrate into the area that promoted the rural-urban linkage. This paper presents a research result of the industrial migrant workers role in rural-urban linkage of the peri-urban region. The research approach was carried out by descriptive analysis to understand the role of migrant workers in the rural-urban linkage. The research collected data from a sample of migrant workers in the regency. The study found that the rural migrant workers as people movement are the main component of rural-urban linkage, which fosters the other linkage components. The workers bring rural social capital from the origin area to support migration and working activity in the urban area. In general, the growth of migrant workers in the industrial sector in the Semarang Regency has a significant impact on promoting rural-urban linkage, especially regarding the contemporary flow of workers to the urban area and spreading remittance income and information surrounding rural areas. Despite the opportunities, the current rural-urban linkages were not yet effectively realized and utilized by the government to deal with the rural-urban divide issue.
Drought hazard assessment in urban areas: A case of Bantul Regency, Special Region of Yogyakarta
Authors: Sukmawati Annisa Mu’awanah , Utomo Puji 
Published: April 2021

Abstract
Drought has a significant impact on many sectors. Urban areas also have tended to more vulnerable to the drought events since it consists of complex urban systems and high urban population. This study addresses to assess the drought hazard level in Bantul Regency and compares the results with urban development. This study used both primary and secondary data collection methods, i.e., field observation and document review. Precipitation data collected from 12 rainfall stations in Bantul Regency from 2008-2018. This study was conducted by using quantitative research methods. Drought hazard levels were analyzed using the Standardized Precipitation Index (SPI) method. While urbanization levels were assessed using a scoring technique. The results reveal that the drought hazard is not always in line with urban development but is also influenced by other factors. Drought in urban areas is more complex. It is not only affected by precipitation factors as meteorological drought in general, but also natural, population, and activity characteristics that affect the balance of water supply and demand. Further, the distribution of rainfall stations also influences the validity of rain data and its calculations. Drought disaster mitigation in urban areas requires more attention from stakeholders regarding the sustainability of cities.
Planning Model of Disaster Response Buildings and Environment in Coastal Area, West Sulawesi
Authors: Sutriani  , Harum M 
Published: April 2021

Abstract
The need for disaster response management in an area gives full attention to the government to issue regulations and policies on the arrangement of land use and buildings against disasters. Indonesia, whose territory is surrounded by water, requires handling, especially for coastal areas that are at risk of potensial disasters. In general,the coastal area is the place for fishermen to live, which gives the spatial character of the area in the arrangement of a building model and its environment. The need for a place to live forms a group of settlements that make the coastal area dense and land less. The magnitude of the influence of the sea on the their livelihoods as fishermen forces them to settle in the area. The purpose of this study is to analyze the spatial planning model for the coastal area by looking at the sustability of the building layout and environment planning for disaster preparedness and then developing the right model for structuring buildings and their environmental in coastal areas in Majene district. This research uses aqualitative descriptive method that reveals facts in the field and then analyses it with literature studies from various related sources. The main target is a model of building arrangement and its environmental layout in coastal areas with variable indicators including land use and shape, spatial patterns and building mass arrangement, orientation and building patterns, circulation and access, community socio-culture and potential disasters which will be analyzed and then develop models that right for the arrangement of the building and its environment. This group is divide accourding to several zones then analyzed and presented with tabulated presentation. The sampling technique is based on division of zones arranged by referring to the image map of the area which is the object of research. The results of this research are in the form of planning a building arrangement model and environment in coastal areas and developing a model of buildings arrangement and disaster responsive environment. This research is expected to be a recommendation for the implementation or direction of government policieson the arrragement of coastal spatial areas in general and especially in Majene,West Sulawesi.
Storage capacity analysis of Nipa Nipa regulation pond using Ripple method
Authors: Satriani S , Lopa R , Maricar F 
Published: April 2021

Abstract
Tallo River has the potential to pose a threat of flooding because it is strongly influenced tide. Regulation Ponds are flood control structures built upstream from areas that will be protected from flood hazards. Storage Capacity Analysis of Nipa regulation pond using Ripple method. Flood routing results obtained a maximum of 3.395.116,79 m3, while topographic conditions obtained a maximum of 3.583.270,96 m3 then optimization analysis based on the Ripple Method obtained with volume accommodated during 1980-1984 is 2.508.330,462 m3, during 1985-1989 is 2.158.594,429 m3, during 1990-1994 is 1.721.928,984 m3, during 1995-1999 is 2.072.035,680 m3, the volume accommodated during 2000-2004 is 2.526.941,033 m3, volume accommodated during 2005-2009 is 1.996.205,351 m3 and volume accommodated during 2010-2014 is 1.913.798,405 m3. This shows that storage capacity of regulation Pond can serve to reduce flood in Tallo River. Based on the cumulative storage analysis, a maximum storage of 10.592.032,714 m3 obtained from the inflow and outflow analysis, indicating that the Nipa regulation pond was able to reduce flood in amount of 38,07 % i.e. 4.032.440,62 m3.