bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effectiveness of vibratory added mixing concrete with heating-grinding recycled coarse aggregate
Authors: Kencanawati N N , Hariyadi H , Akmaluddin A , Karyawan I D M A , Mahmud F , Saputro P N 
Published: September 2021

Abstract
Concrete is a building material that is widely used in the construction industry. With the increasing need for concrete, the demand for constituent materials will increase. To reduce dependence on natural materials, the recycling process of the concrete waste has been encouraged recently. This study applied a heating and grinding method of waste concrete to obtain higher quality recycled coarse aggregate. The addition of vibrations in the mixing process is aimed to enhance the recycled concrete compressive strength. To produce recycled coarse aggregate, the concrete waste was heated to a temperature of 100°C for 24 hours followed by a grinding process using a Los Angeles machine for 600 cycles. Additional vibrations for 30, 60, and 90 were applied in a concrete mixer during the mixing process. Conventional concrete with normal aggregate and no additional vibration during mixing was also provided for comparison. According to the experimental results, the quality of natural coarse aggregate and the recycled one using heating and grinding methods is not much different. Compressive strength of recycled aggregate concrete with vibrations of 30, 60, and 90 seconds increases 21.1%, 22.1%, and 22.6% sequentially correlated to normal concrete. Recycled concrete using heating and grinding methods with the addition of vibration during the mixing process is effective to be used as an alternative to normal coarse aggregate.
Indoor temperature in perimeter spaces on warm humid tropical courtyard housing model
Authors: Defiana I 
Published: September 2021

Abstract
In general, Indonesia housing provides open space at front and fence. Open space inside that expose to sky is predicated as inner courtyard. Housing provide open or green space on side rarely. In humid tropics, high temperatures most of the year have an effect on thermal comfort. To fulfill thermal comfort, a housing model with inner courtyards on side and fence is proposed. In this case, representation of warm humid tropic is Surabaya. Simulation method is used to predict indoor temperature of spaces in perimeter courtyard. Spaces located on inner courtyard perimeters are living room, bedrooms and kitchen. These rooms have duration of occupancy more than one hour. With the existence of these inner courtyards, inhabitants can connect with green open space. The result show, on the hottest month, side and fence of inner courtyard model could support indoor temperature. For 14 hours, living room and bedrooms in thermal neutral zone. Except kitchen, only for 4 hours in thermal neutral zone
Inoculation of Bacillus cereus enhance phytoremediation efficiency of Pistia stratiotes and Eichhornia crassipes in removing heavy metal Pb
Authors: Zahari N Z , Tuah P M , Rahim S A 
Published: September 2021

Abstract
This study investigates the effects of inoculation rhizhosperic microbes namely Bacillus cereus-NMeHI-Cr2 towards the roots of two locally aquatic macrophytes in removing heavy metals Pb from simulated wastewater. Water lettuce (Pistia stratiotes) and water hyacinth (Eichhornia crassipes) were selected in this study due to their absorption capability and acts as biological filters by accumulating heavy metals in their tissue’s bodies. The inoculation of B. cereus-NMeHI-Cr2 onto the roots of P. stratiotes and E. crassipes was conducted in non-continuous horizontal flow (NCHF) reactor with addition of 1.5mg/L of Pb comprising of T2: treatment with inoculation of B. cereus-NMeHI-Cr2, T4: Non inoculation of B. cereus-NMeHI-Cr2 and T6: no plant growth in NCHF reactor (control). After 15 days of cultivation, the treatment integrated with inoculation of B. cereus-NMeHI-Cr2 resulted 83.7% removal efficiency of Pb followed by T4 (70.4%) and T6 (2%) respectively. Furthermore, 63.8 ug/g of Pb was observed in T2 treatment with similar distribution pattern as roots > leaves > stalks in E. crassipes and roots> leaves in P. stratiotes. The physical changes of both plants were also monitored to show any toxicity symptoms experienced as a result of heavy metal Pb. This study validates that the removal of Pb was done via rhizofiltration mechanism as the value of enrichment factor was found below than 1000. The identified plants species with inoculation of Bacillus cereus-NMeHI-Cr2 provides a simple and cost-effective method for application of metal polluted water.
Countermeasures analysis of landslide in the cikeusal village of Tasikmalaya regency
Authors: Salimah A , Yelvi Y , Hazmi M 
Published: September 2021

Abstract
The construction of telecommunication towers aims to improve customer service. So that advances in the field of communication and information technology can be felt by residents who are far away in remote parts of the country. The construction of this tower must be planned as well as possible, especially for areas prone to landslides because towers are usually placed in higher areas. The landslide incident at the location of the telecommunication tower in Cikeusal Village, Tasikmalaya Regency can be used as an evaluation for other areas prone to landslides. The landslide can endanger the settlements under the tower. Field investigations are carried out as a basis for making plans to overcome landslides. The analysis was performed using Plaxis 2D software. The results of the strengthening analysis after the erosion prevention were carried out (with several stage), the factor of safety was 1.805 at section B and 3,228 at section C. The recommendations are given for landslide prevention are replacing the old retaining wall with the new one gradually, adding a column in the middle of the retaining wall, adding bored piles under the retaining wall, making drain pipe on the retaining wall to accommodate water flow from the ground surface, replacing the old stairs for access roads that were affected by landslides with new stairs and made with 2 applications so that the slope of the stairs is not too steep, as well as making a foundation for the stairs. It is hoped that the landslide occurrence and the results of the analysis of slope stability in Cikeusal Village, Tasikmalaya Regency can be used as evaluation material in the construction of telecommunication towers for landslide-prone areas.
Determining of black spot location in Purbalingga Regency using road geometric approach
Authors: Sugiyanto G , Prasetyo Y A , Indriyati E W , Yanto Y , Santi M Y 
Published: September 2021

Abstract
Traffic accidents are still one of the serious problems faced by the Indonesian Government. Based on traffic accident data from Traffic Corps Republic of Indonesia the number of traffic accidents in 2020 is 100,028 incidents and the number of deaths due to accidents is 23,529 people. Traffic accidents are caused by several factors such as vehicles, human error of road users, road conditions and the environment. Road geometry is one factor that contributes to the high value of the risk of accidents. One effort to reduce the number of traffic accidents is identification and handling the black spot location. The purpose of this research was to determine the black spot locations using road geometric facilities. Thus, the black spot location can be predicted before the incidence of a traffic accident occurs through the weighting parameter road geometric. Research was conducted on arterial and collector roads in Purbalingga. Six road geometric parameters are used to determine black spot locations, namely vehicle speed, road lane width, road shoulder width, road pavement width, road median width, and shoulder drop-off (difference in elevation between road shoulder and the pavement edge). Weighting intervals for road geometrics are 1 to 5 with interval 1. As a result of this study, there are differences in the ranking of black spot locations based on the equivalent accident number method and the road geometric parameter approach. The further research is conducted to determine the coefficient value of each road geometric parameter and combined with road equipment facilities.
Optimum operational conditions for mixotrophic microalgae growth and nutrient recovery
Authors: Oz C , Fletcher L , Camargo-Valero M A 
Published: September 2021

Abstract
Microalgae have been presented as microorganisms with great potential to recover nutrient from wastewater. Mixotrophic cultivation of microalgae in nutrient rich wastewater can help eliminating the deficiencies of both phototrophic and heterotrophic growth by allowing the independent optimisation of respiration and photosynthesis processes. Nutrient control and uptake by mixotrophic microalgae can be achieved either in a single or two-stage process using sequential reactors in a continuous flow system. Therefore, this work aims at studying mixotrophic microalgae growth in a two-stage biological process under continuous flow conditions with biomass recycle to recover nutrients from wastewater, considering the effects of different operational conditions (hydraulic retention time (HRT), cell retention time (CRT) and different nitrogen sources). The optimum operational conditions for algal nutrient uptake were identified to be 48 h HRT and 14 d CRT, using a mix of nitrogen sources (Ammonium-N to Nitrate-N ratio of 1:1) with 40.0% and 93.2% of phosphorus of nitrogen recovery in algal biomass, respectively.
Duri Kosambi Sponge Park: The application of Sponge City concept on green open space in reducing flood intensity in Jakarta
Authors: Hadhinata C , Firdaus N , Pratama M M A 
Published: September 2021

Abstract
Flood in Jakarta has been a big issue nowadays. It soaked a thousand hundred hectares of resident area. There are many factors generating flood in that area, such as the dysfunctional of green open space as flood control. Furthermore, the large of provided green open space has not been complied the requirement, as only 9.9% of pre-requirement large of 30% of large area. Sponge City Concept is on of ideas in the form water controlling succeeded to be applied in China having 4 main concepts, which are water ecology, water safety, water environment, and water resources. Therefore, this article takes green open space Duri Kosambi as the specific research object by redesigning it into Duri Kosambi Sponge Park. This paper utilizes 3 (three) steps in redesigning green open space Duri Kosambi, pre-design, design, and post-design. The result of this paper Duri Kosambi Sponge Park design consisting of a plan-layout design, an aesthetic bioswale, a multifunction “O’Area”, and an absorption poll visualized in 3D picture. Additionally, a plan and analysis of Duri Kosambi implementation are discussed in this paper. By stating this idea, it is expected to be able to give the positive effect for environment, economics, and social culture in the society.
Geopolymer hybrid fly ash concrete for construction and conservation in peat environment: A review
Authors: Yanuari R , Septari D , Rindy J A , Olivia M 
Published: September 2021

Abstract
Fly ash is industrial residue from the coal combustion in electric and steam generating plants and recognized as an environmental pollutant. Fly ash contains a high concentration of silica and alumina and can be used as geopolymer concrete. Studies the use of fly ash as a geopolymer concrete mixture has been developing in recent decades. This review focuses on the characteristics of fly ash as hybrid geopolymer concrete, and its resistance is peat environment. The hybrid geopolymer is made by activating fly ash using an alkaline activator and Portland cement. The addition of fly ash geopolymer concrete with Portland cement forms N-A-S-H bond structure from fly ash, and C-S-H hydration bond from Portland cement forms C-A-S-H, which is more solid and stronger against aggressive environment such as peat. In addition, the geopolymer concrete is proven to be able to mobilize heavy metals in fly ash so the concrete has low leaching rate and not harmful to the peat ecosystem. This review proves that hybrid geopolymer concrete using fly ash is a potentially innovative and promising material in the future. The geopolymer hybrid not only has its resistance to peat and acts as conservative material in an environmentally friendly peat environment.
Elektroof: Smart roof as an energy independent solution for Indonesia in the future
Authors: Azhar A W , Al-Fikri M H , Sulasmono R I , Sholikhah N , Wafiyah N A , Dewi C P 
Published: September 2021

Abstract
The Electric Steam Power Plant is still being one of the most commonly used power plants in Indonesia. The use of coal has so many bad impacts on humans and also environmental health. The existence of coal reserves is decreased each year caused of non-renewable energy. Therefore, an innovation for alternative power plants sourced from renewable energy is needed to reduce pollution and be more environmentally friendly. This study examines the possibility of using solar energy and raindrops as the main energy source for elektroof systems. The method used for this study is by comparing the literature about the utilization of piezoelectric and solar cells as the new source of power generators in typical house buildings in Indonesia. The results of the literature study showed that 1 elektroof can produce electrical energy of 183 wh when the weather is hot and when the weather rains elektroof can produce 156 wh so that the elektroof can be used as a tile on the roof of the house that can simultaneously become a self-contained power plant. Elektroof can generate energy by utilizing renewable energy in the form of sunlight and rainwater. Thus, elektroof is possible for use in Indonesia which is a tropical country.
An overview on carbon nanotubes as innovative absorbent for marine oil spill
Authors: Arum L A S , Pawestri Y E , Zaki M , Mahendratha M H W , Awaliya N , Pratama M M A 
Published: September 2021

Abstract
Marine oil spills due to drilling activities is a serious problem worldwide because it poses a major risk to marine ecosystem. So far, researchers in the world continues to innovate materials to clean up marine oil spills. Among them, based on carbon nanotubes. Carbon nanotubes are known have perfect ability to absorb oil and neutralize substance. This study review provides the various types of carbon nanotubes that have best quality to absorb marine oil spills. Continue with various types of carbon nanotubes technology, which technology should be developed in the future by considering each advantage possessed by of carbon nanotubes in order to create product innovation that efficient and environmentally friendly because does not make some new pollution. Therefore, carbon nanotubes is a good choice material to clean up marine oil spills.
An overview of the permeable reactive barrier as part of water remediation system in tropical countries
Authors: Ibrahim I N , Rahman M A A Q , Hannandya M A , Avicenna M H , Bathista M D , Pratama M M A 
Published: September 2021

Abstract
Natural resources are widely used for daily life, but due to poor utilization it can cause natural disasters. Disasters can occur due to several circumstances, such as flooding, which is caused by a malfunction of the drainage system. Floods may contain some bad compounds; therefore, proper solutions are needed to prevent soil pollution. Permeable reactive barrier or PRB can be a solution to this problem. There are various ingredients and benefits of Permeable Reactive Barriers, such as the addition of carbon particles, which will filter water containing petroleum when water passes through PRB. With the help of porous concrete, the water will flow into the permeable reactive barrier and then flow into the bio pores, so that it can make the surrounding soil more fertile. This paper review aims to discuss the use of permeable reactive barriers for soil remediation in tropical countries.
Magnetisation configuration in arrays of permalloy rectangles and its impact on magnetisation reversal
Authors: Newton P J , Devlin N B , Masur S M , Ghidini M , Backes D , Maccherozzi F , Pacheco-Pumaleque A A , Esqueche M A González , Barnes C H W 
Published: September 2021

Abstract
The remanent domain structures of composite element magnetic barcodes have been imaged using photo-emission electron microscopy with contrast from x-ray magnetic circular dichroism (XMCD-PEEM) and analysed with reference to the results of micromagnetic simulations. The magnetisation configuration at the end of wide strips is found to be perpendicular to the majority magnetisation direction. This transitions to an incomplete rotation for nominal strip widths below 300 nm and is found to affect the mechanics of magnetisation reversal for nominal strip widths below 200 nm, owing to a difference in magnetisation orientation when an external magnetic field is applied that is just smaller than the magnetic coercivity of the structures and a corresponding change in reversal dynamics. This change in domain structure as strip width decreases is consistent with both the influence of shape anisotropy and with measurements of magnetic hysteresis. The magnetisation reversal characteristics of composite element structures are found to be dependent on the relative magnetisation configurations of neighbouring strips, which in turn are found to vary stochastically upon the application and removal of a magnetic field along the easy axis of the structure. It is found that the application of a canted field is necessary to ensure sharp, consistent magnetisation reversal of bits when writing a binary code. These results confirm that either improved lithography of narrower strips or non-rectangular elements would be necessary to further increase the number of individually programmable bits in a barcode.
Surface modification of AISI-304 steel by ZnO synthesis using cathodic cage plasma deposition
Authors: Junior W Nogueira , Naeem M , Costa T H C , Díaz-Guillén J C , Díaz-Guillén M R , Iqbal Javed , Jelani Mohsan , Sousa R R M 
Published: September 2021

Abstract
Zinc-oxide (ZnO), a solid lubricant coating, can increase the wear resistance of steels by working as a self-lubricant. In this study, ZnO film is synthesized using the cathodic cage plasma deposition (CCPD) technique, using galvanized steel cathodic cage (steel cage with zinc coating). The effect of gas composition (H2 is added in Ar-O2) is investigated to optimize the film properties. The surface hardness is increased more than twice in each processing condition. The deposited film shows ZnO phases for samples treated with low hydrogen contents and a combination of ZnO and magnetite phase (Fe3O4) with higher hydrogen contents. The thickness of film reduced from 1.28 μm to 0.5 μm by increasing the hydrogen composition. The wear resistance is expressively increased by film deposition, and the abrasive wear mechanism is changed to an adhesive wear mechanism. A significant decrease in wear rate is observed, specifically by increasing the hydrogen contents. The friction coefficient as a function of sliding distance is smoother and lower than the base material in each condition. This study suggests that the CCPD technique can effectively deposit the solid lubricant coating of ZnO, and it can be used to enhance the tribological properties of steel samples. Moreover, this technique is convenient due to its better deposition efficiency, eco-friendly (no chemicals are involved), simple and relatively low-cost equipment, and low processing temperature. Thus, it can be advantageous for industrial sectors interested in materials with exceptional tribological properties.
Evaluation of gases’ molecular abundance ratio by fiber-optic laser-induced breakdown spectroscopy with a metal-assisted method
Authors: ZHU Yu , ZHOU Pingwei , LI Shengfu 
Published: September 2021

Abstract
A metal-assisted method is proposed for the evaluation of gases’ molecular abundance ratio in fiber-optic laser-induced breakdown spectroscopy (FO-LIBS). This method can reduce the laser ablation energy and make gas composition identification possible. The principle comes from the collision between the detected gases and the plasma produced by the laser ablation of the metal substrate. The interparticle collision in the plasma plume leads to gas molecules dissociating and sparking, which can be used to determine the gas composition. The quantitative relationship between spectral line intensity and molecular abundance ratio was developed over a large molecular abundance ratio range. The influence of laser ablation energy and substrate material on gas quantitative calibration measurement is also analyzed. The proposed metal-assisted method makes the measurement of gases’ molecular abundance ratios possible with an FO-LIBS system.
A genome-wide circular RNA transcriptome in rat
Authors: Sharma Disha , Sehgal Paras , Sivasubbu Sridhar , Scaria Vinod 
Published: September 2021

Abstract
Circular RNAs (circRNAs) are a novel class of noncoding RNAs that back-splice from 5ʹ donor site and 3ʹ acceptor sites to form a circular structure. A number of circRNAs have been discovered in model organisms including human, mouse, Drosophila, among other organisms. There are a few candidate-based studies on circRNAs in rat, a well-studied model organism as well. A number of pipelines have been published to identify the back splice junctions for the discovery of circRNAs but studies comparing these tools have suggested that a combination of tools would be a better approach to identify high-confidence circRNAs. The availability of a recent dataset of transcriptomes encompassing 11 tissues, 4 developmental stages, and 2 genders motivated us to explore the landscape of circRNAs in the organism in this context. In order to understand the difference among different pipelines, we employed five different combinations of tools to identify circular RNAs from the dataset. We compared the results of the different combination of tools/pipelines with respect to alignment, total number of circRNAs identified and read-coverage. In addition, we identified tissue-specific, development-stage specific and gender-specific circRNAs and further independently validated 16 circRNA junctions out of 24 selected candidates in 5 tissue samples and estimated the quantitative expression of five circRNA candidates using real-time polymerase chain reaction and our analysis suggests three candidates as tissue-enriched. This study is one of the most comprehensive studies which provides a map of circRNAs transcriptome as well as to understand the difference among different computational pipelines in rat.
Recovery of severe dialysis disequilibrium syndrome with uncal herniation following therapy with mannitol, hyperventilation and hypertonic saline
Authors: Liu Kuan-Hung , Lee Shao-Hua , Lin Wei-Ren , Tsai Yau-Sheng , Sung Junne-Ming 
Published: September 2021

ABSTRACT
Dialysis disequilibrium syndrome (DDS) is a rare complication of dialysis, especially with the general application of preventive strategies. Severe DDS with brain herniation is believed to be fatal. We present a patient presenting with bilateral uncal herniation after receiving two dialysis sessions with low-efficiency settings. Serial brain magnetic resonance imaging studies showed the temporal evolution of DDS-induced cerebral edema. With aggressive treatment of hypertonic saline and mannitol, the patient made a remarkable recovery. This case highlights that we should be cautious about this severe complication of dialysis even with preventive strategies, and recovery is possible with prompt recognition and treatment.