bluuebunny/crossref_metadata_2025_split huggingface dataset:
Nanostructure, Band Gap, and Antibacterial Activity of Spinel Fe2MO4/OO Magnetic Fluids
Authors: Millaty Abadiah Nur , Yuliantika Defi , Amalia Hariyanto Yuanita , Eko Saputro Rosy , Masruroh  , Taufiq Ahmad , Soontaranoon Siriwat 
Published: June 2019

Abstract
This research aimed at investigating Fe2MO4 ferrofluids nanostructure, with M was Fe, Ti and Cr. Fe2MO4 nanoparticles were synthesized through coprecipitation method, and the phase and crystallinity were analyzed using XRD instrument. The obtained results showed the Fe3O4 phase, but there was a shift in diffraction peak position contributed by the doping of Ti2+ and Cr3+ ions. Furthermore, a similar change occurred in the lattice parameter, crystal volume, and particle size. The particle sizes of Fe3O4, Fe2TiO4, and Fe2CrO4 particles were 10.2, 13.4, and 6.9 nm, respectively. The functional groups of the Fe2MO4/OO ferrofluids were characterized using FTIR and obtained the Fe-O stretching band shift due to the modification of structure. Furthermore, FTIR analysis was used as a reference to confirm functional groups of the ferrofluids. The absorbance data collection was performed through the characterization using UV-Vis instrument, and there was intervalence charge transfer at a wavelength near infra-red indicating there was Fe element and nanoparticle interface which raised an optimum absorption at the interval of 400-550 nm. Furthermore, through the obtained absorbance data, there was an energy gap of 2.2-2.24 eV. Interestingly, the results of antibacterial testing results through the dilution method showed a modification of structure could increase the antibacterial activity of the Fe2MO4/OO ferrofluids by minimizing the percentage of surviving colony number.
Overview of Radon Background Correction Technology for Airborne Gamma Spectrometry
Authors: Zeng Chenhao , Lai Wanchang , Feng Xiaojie , Fan Chen , Wu Jinfei , Gu Runqiu 
Published: June 2019

Abstract
In radiometric measurements, the radiation characteristics of radon and its daughters will increase the detection background value and affect the detection results. Research institutes in various regions of the world have studied the effects of radon and its daughters, and have done a lot of work according to the special climate, geological conditions and characteristics of radioactive events in their regions. In the view of the influence of radon background in airborne gamma-ray spectrometry measurement, this paper summarizes the research results of radon background correction in gamma-ray spectrometry measurement from three aspects in the world scope: environmental radiation monitoring, radiation monitoring instruments and nuclear emergency monitoring. In the aspect of environmental radiation monitoring, the research unit mainly considers the climatic factors such as rainfall, temperature and humidity, atmospheric and hydrological changes and seasonal changes, geological factors such as altitude, mineral types, and measurement means such as alpha measurement and inverse derivation gamma measurement. In terms of radiation monitoring instruments, radon and its daughters are mainly considered to reduce the impact and improve the measurement accuracy. In the aspect of nuclear emergency monitoring, the main consideration is how to improve the accuracy of measurement and avoid false alarm. On this basis, the research trend and development direction of radon background correction in airborne gamma-ray spectrometry are put forward.
Simulation and Practice of Condensation Recovery of Nitrogen Tetroxide Based on HYSYS
Authors: Zhang Liqing , Hou Ziwen , Huang Lingzhi , Gu Pengcheng , Xu Zelong 
Published: June 2019

Abstract
The theoretical calculation results of the condensation recovery rate and the required cooling power of an engineering application unit shown that condensation recovery of N2O4 in the waste gas is feasible and valuable in engineering applications.A simulation model was performed by using HYSYS and according to condensate-recovery process flow. Thus two important engineering parameters were simulated which included the thermal load of condensation system and the flow of glycol-water solution. The test results of an engineering application device based on these parameters at Jiuquan Satellite Launch Center indicated that the recovery efficiency can be above 90.0%, the purity of N2O4 recovered can be up to 99.6%.
A Laboratory Simulation Research Method for Speciation Distribution of Ultratrace Pu in Groundwater and Its Application
Authors: Zhou Xu , Chai Nana , Ma Teqi , Wang Yu , Wang Weixian 
Published: June 2019

AbstractThe migration rate difference of various Pu species in contaminated groundwater can be up to 3 orders of magnitude. Accurately obtaining speciation distribution of Pu is the first problem to be solved in site safety assessment. However, the in-situ chemical properties of groundwater are easily affected by the external environment, and Pu content in the contaminated groundwater is usually at ultra-trace level, the existing sampling-laboratory analysis method cannot directly determine the speciation distribution of Pu. Here a laboratory simulation research method for speciation distribution of ultratrace Pu in groundwater was established, in which a nitrogen assisted sampling and storage device was designed and employed to sample groundwater, and the groundwater sample was transported and kept in Anaerobic Glove Box, into which spiked Pu was added and the speciation distribution of Pu were monitored at various aging time by series speciation analysis techniques we improved and integrated. Using the method, the in-situ chemical properties of groundwater are well maintained, and the speciation distribution of ultratrace Pu in a contaminated groundwater from a granite area, NW China was obtained successfully. The results were basically consistent with the modelling results by geochemical software and/or analysis results by related instruments. Not only the method can continuously be used in the field of speciation distribution of Pu in contaminated water, but also can be used in other fields such as the treatment of waste liquor from Nuclear Plant, Reactor study, and so on.
The Study about Ecological Compensation Standard of Farmland Ecosystem in Beijing-Tianjin-Hebei Region
Authors: Jiang Cuihong , Li Guangyong , Zhang Bin , Li He-qing , Li Min , Zhu Zhong xian 
Published: June 2019

Abstract
As a member of the terrestrial ecosystem, the farmland ecosystem is responsible for providing the material basis and food for human beings, and plays an active role in the stability of the global ecosystem. The farmland of Hebei Province has played an important role for food supply to Beijing and Tianjin in a long time. The development stage coefficient method was adopted in this study to adjust the non-market value of farmland ecosystem services. The result showed that the urban areas of Beijing and Tianjin should pay 17.934 billion yuan of ecological compensation to Hebei province, the suburban areas of Beijing and the suburban areas of Tianjin. The agricultural ecological compensation standard is 2,475 yuan per hectare. The results showed that The connection between ecosystem service function value and ecological compensation standard should be determined. The economic development level coefficient and compensation distribution coefficient played a key role.
The Treatment of Nanofiltration Concentrate of Coking Wastewater by Fenton Process
Authors: Wang Jiao 
Published: June 2019

Abstract
The nanofiltration concentrate of coking wastewater contain high concentration of nonbiodegradable and refractory organic matters. In this study, the nanofiltration concentrate was treated by Fenton process. The COD, NH3-N and chrominance were selected as the target parameters. Their removal efficiencies were investigated through changing some operating parameters such as initial pH, initial H2O2 concentration, initial FeSO4 concentration and reaction time. Under the optimum operating, the COD of effluent was below 85 mg / L, the removal rate was up to 85%; NH3–N of effluent was reduced to 14 mg / L, the removal rate was up to about 94%; the removal rate of chroma reached about 85%, which satisfied the discharge water quality standards (chemical oxygen demand [COD] <100 mg/L, NH3–N< 15 mg/L).In general, the fenton process can be a promising and reasonable method in the treatment of Nanofiltration concentrate of coking wastewater.
Community Empowerment in Waste Management Area for Sustainable Development
Authors: Ahmad M , Tri U S , Tri W , Novia R 
Published: June 2019

Abstract
A landfill is a place to manage and store wastes. Various problems have occurred due to the existence of landfill, either environmental, social, and economic issues. This study was associated with the effort of improving the prosperity of the local community around the landfill in Indonesia. The aims of this study were to discover the form and estimation of externality values of landfill towards the community, to determine the value chain pattern and the amount of added value of chemical waste derived from landfill which received by waste pickers and collectors. This study was designed with a mixed method by implementing descriptive statistics analysis, added value analysis, revenue analysis, Cost of Illness, and Replacement of Cost. The research results have indicated that the existence of landfill has brought positive and negative impacts on the community life the area around the landfill. The impacts which caused by the existence of landfill include economic, social, and environmental impacts in which the estimation of positive externality value was bigger than the estimation of negative externality value.
Research on the Promotion Mechanism of Clean Energy Technology in Industrial Parks Based on Evolutionary Game
Authors: Wang Qiang , Ren Chun , Liu Haiying , Gao Zhenggang , Liu Xin 
Published: June 2019

Abstract
Clean energy technology is a new energy technology that is developed with good environmental benefits in terms of renewable energy and efficient clean utilization of coal. The industrial park clean energy technology promotion mechanism is an evolutionary game process between an industrial park management committee and a clean energy technology supplier. Based on the basic principles of evolutionary game, this paper constructs a clean energy technology promotion mechanism, analyzes the factors affecting the strategic choice of industrial park management committee and clean energy technology supplier, and constructs industrial park management committee and clean energy technology supplier game matrix under different strategies. Through theoretical analysis and numerical simulation, provides recommendations for the promotion of clean energy technologies.
Research on Comparison of Artificial Alga Reef Site Selection Scheme in Beidaihe Sea Area
Authors: Xu Xin , Wang Nan , Zhu Yuxin , Li Mingchang 
Published: June 2019

Abstract
Artificial algae reefs can effectively improve the ecological environment of the sea areas, restore submarine vegetation, and provide habitats for fish and avoid enemies. The study area is located in Beidaihe sea area. According to the regional characteristics, this paper uses ecological model to predict the floating trajectory of large algae debris, and obtains the impact of large algae on the landscape of Beidaihe bathing field. At the same time, through the marine physical environment(water depth, water flow, subsoil type, seabed topography), offshore distance, economic benefits and other factors, selected the most suitable location for artificial reefs in the Beidaihe sea area.
Assessment of Role of Water Body on Thermal Comfort in Ahmedabad, India
Authors: Gajjar Hardik , Jai Devi J 
Published: June 2019

Abstract
Increasing urbanization at rapid pace is definitely reducing the green cover and ultimately increases the urban temperature. The side cause of this elevated temperature at city centre compared to the suburbs and rural areas (Urban Heat Island) is enhancement of human thermal discomfort at the outdoor spaces and may even cause death due to heat stroke. This factor becomes a key role for urban planners and designers to create safe and pleasant spaces to live, work and commute. Several research works has been done to assess the role of green cover in reducing the UHI intensity and improve the thermal comfort, but less shade has been given on the cooling potential of urban water bodies. This work tries to investigate the effectiveness of Kankaria lake (Ahmedabad, India) that may have in cooling its nearby places (<500 m) and also on assessing outdoor thermal comfort using an index PET. Simultaneous ground measurement were taken around Kankaria lake at 4 selected locations on 10 minute interval starting from 14:00 to 16:30 in month of October for 7 days. Microclimatic parameters like air temperature, wind velocity, relative humidity, globe temperature and mean radiant temperature were measured using hand-held devices. Results indicate that the western side of Kankaria Lake observed drop in 0.2°C compared to the eastern side. Whereas, PET showed drop in maximum of 1.44°C on the western side, but it was still under the stress condition as per PET scale for sub-tropical climate zone.
High-resolution Interferometric Measurement of Thickness Change on a Lithium-Ion Pouch Battery
Authors: Bohn G , Taub J , Linke A , Bayer S , Oeser D , Ziegler A , Ettl P , Ackva A 
Published: June 2019

Abstract
Volume change of graphite leads to change in thickness of battery storage layers during discharging and charging. Pouch cell lithium ion batteries are used in the field of electric vehicles and solar home storage. This paper shows a measurement setup for the three-dimensional measurement of thickness change on a flat 6.7mm thick pouch cell using a white light interferometer. With a measuring field of 7.05mm diameter the resulting 3D thickness change record contains 226000 3D readings. The measuring points have a lateral distance of 13.1μm. The repeatability of the measurement is 312.8nm for the individual values and 64.1nm for the average value. In addition, this paper shows how the storage capacity of this pouch cell drops over 30 charge cycles.
Parametric Study of Combined Cooling and Power (CCP) Plant Integrated with Parabolic Trough Solar Collectors (PTSCs)
Authors: Khatti Shakir Shakoor , Memon Abdul Ghafoor , Qureshi Samiullah 
Published: June 2019

Abstract
This study presents a detailed energy analysis of a Combined Cooling and Power (CCP) plant operated by Parabolic Trough Solar Collectors (PTSCs). The integrated cycles; Vapor Absorption Refrigeration Cycle (VARC) and Organic Rankine Cycle (ORC) are used to produce cooling and power, respectively. Six organic working fluids, namely, R113, R141b, R123, R245fa, R142b, and isobutane were selected for ORC, while LiBr-H2O solution used in VARC. Four key energetic parameters, useful heat gain, work output, cooling rate, and energy utilization factor (EUF) were examined during varying direct normal irradiance (DNI). A parametric study was carried out in three modes of operation, power only, combined power and cooling and cooling only under the limits of DNI from 0.6 kW/m2to 0.88 kW/m2recorded on the yearly-average basis in two cities of Pakistan, Lahore, and Quetta respectively. Results enunciated that R113 given the highest thermal efficiency of 17.12%, while isobutane gave the least thermal efficiency of 7.88%, hence R113 was chosen as organic working fluid for further study. The maximumEUF was found in the cooling mode of operation which increased from 63.95% to 66.79% at 0.6 kW/m2 and 0.88 kW/m2 respectively. During the combined cooling and power mode, maximum cooling rate, power output, and EUF were 3456 kW, 822.5 kW, and 41.34% respectively at 0.88 kW/m2.
Reliability Evaluation Algorithm for Distribution Network with DG
Authors: Shenghui Li , Feng Sun , Yu Zhu , Xue Bai 
Published: June 2019

Abstract
The paper proposed reliability evaluation algorithm for distribution network considering the act of weather and DG, the algorithm develops weather model for average failure rate to shows the influence of normal weather and adverse weather on distribution network reliability. Then, the optimal island partition method is proposed to determine the power supply scope after power failure. The improved minimal path method is employs to calculate the reliability index of distribution network with DG. The test covers four cases including without DG and weather, only DG, only weather, and both DG and weather are calculated and compared from the aspects of load points, feeders and system reliability indices. The results about SAIFI, SAIDI, CAIDI and ASAI show that the proposed algorithm can take the influence of distributed power supply and weather into account. The impact of distributed generation and adverse weather on distribution network reliability is studied. Considering both DG and weather, the reliability of distribution network can reflect the actual condition more accurately, which proves the validity of the method and the model.
Uniaxial Tensile Test of Waste Glass Powder Concrete at Different Loading Rates
Authors: Li Shirui , Gan Yuanchu , Ke Guojun 
Published: June 2019

Abstract
Test method by direct stretching. The failure modes and failure mechanisms of concrete specimens with 0%, 10% and 20% of waste glass powder at five different loading rates were studied. The uniaxial tensile view of waste glass powder concrete was established by using parallel-bar model PBS. The damage model is the modified parallel model, and the damage relationship is very similar to the stress-strain curve in the test. It shows that the concrete uniaxial tension meso-damage model can be used in this test. The ultimate tensile strength of waste glass powder concrete increases with the increase of loading rate. The relationship between dynamic tensile strength and loading rate is studied. The linear regression fit is applied to the influence of loading rate and dynamic tensile strength to obtain dynamic tensile strength. The increment is approximately related to the loading rate.
arcasHLA: high-resolution HLA typing from RNAseq
Authors: Orenbuch Rose , Filip Ioan , Comito Devon , Shaman Jeffrey , Pe’er Itsik , Rabadan Raul 
Published: June 2019

Abstract

Motivation
The human leukocyte antigen (HLA) locus plays a critical role in tissue compatibility and regulates the host response to many diseases, including cancers and autoimmune di3orders. Recent improvements in the quality and accessibility of next-generation sequencing have made HLA typing from standard short-read data practical. However, this task remains challenging given the high level of polymorphism and homology between HLA genes. HLA typing from RNA sequencing is further complicated by post-transcriptional modifications and bias due to amplification.

Results
Here, we present arcasHLA: a fast and accurate in silico tool that infers HLA genotypes from RNA-sequencing data. Our tool outperforms established tools on the gold-standard benchmark dataset for HLA typing in terms of both accuracy and speed, with an accuracy rate of 100% at two-field resolution for Class I genes, and over 99.7% for Class II. Furthermore, we evaluate the performance of our tool on a new biological dataset of 447 single-end total RNA samples from nasopharyngeal swabs, and establish the applicability of arcasHLA in metatranscriptome studies.

Availability and implementation
arcasHLA is available at https://github.com/RabadanLab/arcasHLA.

Supplementary information
Supplementary data are available at Bioinformatics online.
Complicated Disease and Response to Initial Therapy Predicts Early Surgery in Paediatric Crohn’s Disease: Results From the Porto Group GROWTH Study
Authors: Levine Arie , Chanchlani Neil , Hussey Seamus , Ziv-Baran Tomer , Escher Johanna C , Amil Dias Jorge , Veres Gabor , Koletzko Sibylle , Turner Dan , Kolho Kaija-Leena , Paerregaard Anders , Staiano Annamaria , Lionetti Paolo , Nuti Federica , Sladek Malgorata , Shaoul Ron , Lazowska-Prezeorek Isabella , Martin de Carpi Javier , Sigall Boneh Rotem , Pfeffer Gik Tamar , Cohen-Dolev Noa , Russell Richard K 
Published: June 2019

AbstractIntroductionThe ability to predict risk for poor outcomes in Crohn’s disease [CD] would enable early treatment intensification. We aimed to identify children with CD with complications at baseline and throughout the study period who are at risk for surgery 2 years from diagnosis.MethodsNewly diagnosed children with CD were enrolled into a prospective, multicentre inception cohort. Disease characteristics and serological markers were obtained at baseline and week 12 thereafter. Outcome data including disease activity, therapies, complications and need for surgery were collected until the end of 104 weeks. A chi-square automatic interaction detection [CHAID] algorithm was used to develop a prediction model for early surgery.ResultsOf 285 children enrolled, 31 [10.9%] required surgery within 2 years. Multivariate analysis identified stricturing disease at baseline (odds ratio [OR] 5.26, 95% confidence interval [CI] 2.02–13.67 [p = 0.001]), and Paediatric Crohn’s Disease Activity Index [PCDAI] &gt;10 at week 12 (OR 1.06, 95% CI 1.02–1.10 [p = 0.005]) as key predictors for early surgery. CHAID demonstrated that absence of strictures at diagnosis [7.6%], corticosteroid-free remission at week 12 [4.1%] and early immunomodulator therapy [0.8%] were associated with the lowest risk of surgery, while stricturing disease at diagnosis [27.1%, p &lt; 0.001] or elevated PCDAI at week 12 [16.7%, p = 0.014] had an increased risk of surgery at follow-up. Anti-OmpC status further stratified high-risk patients.DiscussionA risk algorithm using clinical and serological variables at diagnosis and week 12 can categorize patients into high- and low-risk groups from diagnosis.
Digoxin–mortality: randomized vs. observational comparison in the DIG trial
Authors: Aguirre Dávila Lukas , Weber Kristina , Bavendiek Udo , Bauersachs Johann , Wittes Janet , Yusuf Salim , Koch Armin 
Published: June 2019

Abstract

Aims
The Digitalis Investigation Group (DIG) trial, the only large randomized trial of digoxin in heart failure, reported a neutral effect on mortality and a significant reduction in heart failure hospitalizations. Recent observational studies reported increased mortality with digoxin treatment. We present further analyses of the DIG trial displaying the inability to control bias in observational treatment comparisons despite extensive statistical adjustments.

Methods and results
Forty-four percent of the 6800 patients in the DIG trial had been treated with digoxin before randomization, and half of them were randomly withdrawn from digoxin treatment. We contrast the main randomization-based result of the DIG trial with the observational non-randomized comparison of patients pre-treated or not pre-treated with digoxin. Mortality [hazard ratio (HR) 1.22, 95% confidence interval (CI) 1.12–1.34; P &lt; 0.001] and heart failure hospitalizations (HR 1.47, 95% CI 1.33–1.61; P &lt; 0.001) were significantly higher in patients pre-treated with digoxin even after adjustment for baseline population differences. The higher risks for both outcomes in those who had previously received digoxin persisted even if they received placebo during the trial (HR 1.24, 95% CI 1.10–1.40; P &lt; 0.001). This sharply contradicts the neutral effect on mortality and the significant reduction in heart failure hospitalizations observed in the randomized comparison.

Conclusion
Prescription of digoxin is an indicator of disease severity and worse prognosis, which cannot be fully accounted for by covariate adjustments in the DIG trial where patients were well-characterized. It is unlikely that weaker research approaches (observational studies of administrative data or registries) can provide more reliable estimates of the effects of cardiac glycosides.