bluuebunny/crossref_metadata_2025_split huggingface dataset:
Comparison of lung function between breath-holding diving and non-breath-holding diving fishermen in Ambon city
Authors: Luhulima J , Oetama E C , Mainase J 
Published: October 2019

Abstract
Breath-hold diving is a traditional method used by fishermen to catch fish or other marine organisms. When humans hold their breath during diving, generally their body will develop physiological changes, and with regular exercise, this can improve the lung function. Based on many studies reported, there is an increase in lung function in breath-hold diving fishermen. The objective of this study was to analyze the comparison of pulmonary function between breath-hold diving fishermen and non-divers fishermen in Ambon. This study uses analytical methods with a cross-sectional approach using primary data of 15 breath-hold divers and 15 non-divers fishermen sample with same background of healthy behavior. The pulmonary function differences between breath-hold diving fishermen and non-diving fishermen were analyzed using t-student test. Pulmonary function parameters i.e. VC, FVC, and FEV1% was measured using spirometer. The results of this study showed that mean value of lung function comparison between breath-hold diving fishermen and non-breath lung function fishermen in vital capacity (VC) ratio was 3.48 ± 0.5 vs. 3.01 ± 0.63 (t
α(2)0.05:P = 0‘03), forced vital capacity (FVC) was 2.19 ± 0.45 vs. 1.84 ± 0.46 (t
α(2)0.05:P = 0.045), and forced expiratory volume in one second (FEV1%) was 91.46 ± 9.12 vs. 83.44 ± 10.3 (t
α(2)0.05:P = 0.03). The lung function comparison in breath-hold diving fishermen and non-diver fishermen showed that there is a significant difference in lung function between breath-hold fishermen and non-diver fishermen. The conclusion of the research is, with the same background of life behavior, the lung function of breath-hold diving fishermen is better than non-diver fishermen.
The potential of Rhizophora mucronata extracts to protect tiger prawn from pathogenenic infections
Authors: Saptiani G , Asikin A N , Ardhani F , Hardi E H 
Published: October 2019

Abstract
The research aims to study Rhizophora mucronata leaves extract to inhibit and protects tiger prawn from pathogens infection. The leaves of R. mucronata were chopped, dried, macerated and extracted in three different solvents, namely ethanol, water and see water. In vitro inhibitory tests were performed using disc diffusion and minimal inhibitory concentration methods. The in vivo test on tiger prawn was given by submersion, which then tested with Vibrio harveyi and Saprolegnia sp. The observation and inspection covered clinical symptom, pathological anatomy, total vibrio count, survival rate, and Relative Percentage of Survival. The result showed that mangrove leaves extract can inhibit pathogens on tiger prawn, improve survival rate and relative persentage of survival. The best R. mucronata extract that can inhibit and protect the tiger prawn from pathogen infection is ethanol extract 1,250-1,500 ppm, followed by water extract 1,500 ppm, and sea water extract 1,500 ppm
An application of statistical methods on sustainable pricing mechanism for waste container recycling in Taiwan
Authors: Hsu E , Kuo C-M 
Published: October 2019

Abstract
Waste containers generated by households are recycled under 4-in-1 recycling program in Taiwan for more than 20 years. Along with the development of circular economy, waste recycling has become increasingly important. Recycling fund plays an important role in keeping the recycling system running. Developing a sustainable pricing mechanism for the recycling system is an important but sophisticate issue. This study aims to use statistical methods including sampling design, regression model, ratio estimation, and cost estimation model to carry out a sustainable pricing mechanism, which can not only reflect the reality of recycling market but also comply with circular economy. The sustainable pricing mechanism proposed by this study first considers recycling cost, recycling revenue, recycling performance, as well as balance of recycling fund, and then sets differential pricing mechanism based on the product designs and recycling technologies. It is also a floating pricing mechanism that responds to monthly economic changes. This study takes waste container recycling as an example for statistical modelling. The statistical methods used in this study can also be applied for other solid waste recycling items.
Investigation of biosolid-compost produced by high-temperature fermentation process
Authors: Chang J H , Adhikari S , Ng D Q , Shen S F , Dong C D , Shen S Y 
Published: October 2019

Abstract
Disposal of biosolids has been paid a due attention in Taiwan owing to their increasing amounts in the recent years. As there is no special landfill for biosolids dumping in Taiwan, transformation of biosolids to compost could be one of the suitable means of disposal. The study aimed to investigate the use of high-temperature fermentation technique to produce biosolid compost and examine the quality of bio-solid compost produced. Biosolids collected from a municipal wastewater treatment plant were treated by electro-kinetics to remove heavy metals and mixed with some agricultural wastes (mushroom waste and chicken excreta) to transform into the compost by a high-temperature (130°C) fermentation process. Prior and post to fermentation, the concentration of heavy metals and pathogenic bacteria in the biosolid-compost were determined. Results indicated that concentration of Cd, Cr, Cu, Ni and Pb in the compost after fermentation was within the soil control standard of Taiwan EPA. The pathogenic bacteria such as Escherichia coli, Salmonella, and parasitic ova in the final compost were within the government criteria. Biosolid compost was then applied as a soil improvement material to compare the relative growth (with a control) of red leaf shovel within the campus premises. The plants in the plot with biosolid compost demonstrated a better growth than the same plants in the control.
Validating the usefulness and calibration of a two-dimensional situation model of urgency-adaptability for cities responding to climate change — Taking Shenzhen as case study
Authors: Li F , Uthes S , Yang X , Lai Y P , Gao N N 
Published: October 2019

Abstract
Climate change is a major challenge for human sustainable and urban governance mode. A Two-Dimensional Urgency-Adaptability Situation Model for Cities Responding to Climate Change was constructed in this study to evaluate cities adaptation capacity to climate change. The model evaluated city adaptability in five aspects: social and economic development, disaster response, urban planning adaptation, science and technology and policy management. To verify the effectiveness of the model, Shenzhen was chosen as a case, which had a start in climate change adaptation as a developed coastal city in China. The result shows that Shenzhen should further focus on enhancing its urban planning adaptability in the aspects including green construction, planning and design, as well as city renovation and regeneration. The Urgency-Adaptability Situation Model helps to make policy suggestions aiming at enhancing the climate adaptability of cities.
Study on macro-microscopic properties and separated technology of waste residue
Authors: Wang J , Zeng Q J , Dong Z L , Zhou H X 
Published: October 2019

Abstract
The rapid growth of solid waste has posed a serious threat to the urban environment and the safety of groundwater. This paper relies on the land formation project of Shenzhen Marine emerging Industrial Base. Waste residue is used as filling material for landfilling. In this paper, macro and micro tests, heavy metal and organic matter content tests of waste residue and underground silt were carried out. The physical mechanics, microscopic properties and pollution degree were analysed. The separation technology of waste residue is also studied. The results show that the composition of the waste residue is complex. The contents of heavy metals and organic pollutants did not exceed the risk control standard of construction land. The physical properties and pollution requirements of waste residue used in landfilling are put forward. The technology of three-step separation and separation of waste residue is put forward.
Analysis and research on the plan of Yihe River rerouting line
Authors: Liu L L , Wu X D , Ma L , Liu Q S 
Published: October 2019

Abstract
The Yihe river channel is from Liujiadoukou to Beijing-Hangzhou Canal. By analyzing the restricting factors of the basic conditions of the resume navigation of the inland river, this paper puts forward three line schemes, and carries on the utilization of river and waterway, the guarantee of the water resources, sluice dam and bridge, artificial canal. It is concluded that line 3 is the optimal rerouting line. The optimal line is obtained: Liujiadaokou Sluice→Sulu Boundary→ Shiba Village→ Huangnihe River→Chenghe River→Beijing-hang Canal. The total length of the waterway is 86.2 km, of which 54.5 km is in Shandong Province and 31.7 km in Jiangsu Province.
Mechanism of sediment transport by flood and longitudinal peak discharge amplifications in the Yellow River
Authors: Qi H H , Qi P , Sun Z Y , Zhang S A 
Published: October 2019

Abstract
As the general principle of river bed evolution during the fluvial process, the channel is formed by river flows, while the movement of river flows is contained by channels. When the hyperconcentrated flood propagates along the wandering reach of the Yellow River, the peak discharge of the flood can increase along the reach. Due to the recurrence of this phenomenon, attentions have been drawn from various stakeholders, since the amplifications of flood peak can jeopardize flood control works. By analyzing the field observed data, we present our research findings of “scour during rising” and “deposit during falling” of a flood event, as well as the sediment transport mechanism with constant discharge. The bedform affects the characteristics of sediment transport and the resistance force. When the bedform is in the dynamic equilibrium state, sediment transport characteristics can be described as “the more sediment input, the more sediment output”. When the shear stress created by flow acting on bed is increasing, scour is observed on the channel bed. On the contrary, when shear stress is decreasing, deposition is observed. When the shear stress remains the same, sediment transport is in the equilibrium state. After the operation of Xiaolangdi Reservoir, due to coarsen of the bed material, the bedform resistance increased. When the flow condition changes and the bed roughness decreased abruptly, the increasing flow velocity can result in the reduction of channel storage volume. This is the main reason for the longitudinal amplifications of peak discharge in the wandering reach of the Yellow River.
Experimental study of axial compression on new types of CFST column-RC beam joints after the low-cycle reversed loading test
Authors: Liu Y S , Ma H , Wang W J , Wang Q Q , Li Z B 
Published: October 2019

Abstract
In this paper, the axial compression tests were carried out on the concrete filled steel tube (CFST) column-reinforced concrete (RC) beam joints connected by steel plates and studs after the low-cycle reversed loading test. The failure mode, steel tube strain and ultimate bearing capacity of new types joints were discussed under axial compression load. The comparative study with the specimen of CFST column was conducted. The results showed that new types CFST column-RC beam joints maintain good axial compression performance after the low-cycle reversed test loading at the beam ends. The specimens were designed following the principle of “strong column-weak beam”. The low-cycle reversed loading had little effect on the axial bearing capacity of the CFST column, but the damaged RC beams of the joints had certain influence on the failure mode of the columns under axial compression.
An empirical research on the relationship between water quality, climate change and economic development in Jiulong River Watershed
Authors: Liu Guangsheng 
Published: October 2019

Abstract
Climate change and economy development are key factors affecting the future of water quality in urbanized catchments. Under the dual influences of climate change and human activities, water environment problems become prominently, especially in coastal watershed of higher urbanization, concentrated populations. Thus, this study focuses on the relationships between economic growth, climate change and water quality in the Jiulong River Watershed (JRW). The results showed that inorganic nitrogen and phosphate nutrient increased significantly, and the river basin showed a trend of warm and humidification. The wind speed and sunshine duration decreased significantly. The results of principal component analysis showed that economic development play a leading role in the evolution of estuary water environment, and the influence of climate change cannot be ignored. Economic growth and climate change contribute to the deterioration of water quality. Water resource shortages and water pollutions are the big challenges for water resources management. This study will be conductive to the water environmental pollution control and management.
Study on water purification ability and permeability of different filter materials in LID-type ditch
Authors: Lzhu M , Chen Y 
Published: October 2019

Abstract
In rural areas of China, sewage is often discharged to ditch directly without any treatment. We propose a new type of ditch based on Low Impact Development (LID) strategy by replacing bed soil in rural ditch with mixed filter material of approximately 30cm in thickness. This new type of ditch is so-called LID-type ditch having the function of storage, penetration, purification and drainage. Four basic materials, red loam, sand, gravel and zeolite, are used to create 3 types of mixed filter materials by evenly mixing these basic materials with different mass ratios. Their saturated permeability coefficients and water purification ability are measured and compared. Results indicate that all 3 types of mixed filter materials are suitable to apply to LID-type ditch, and the all outflows meet the water quality standard for farmland irrigation. The best mixed filter material is type 1 with 50% of red loam, 30% of sand, 10% of gravel, and 10% of zeolite, it has removal rate for TP as high as 81.31% and average removal rate of 47.09% for TP, TN, NH3-N, COD, BOD5.
Modeling Climate Change Impacts on Water Resources
Authors: Zhuang X.W. , Li Y.P. , Nie S. , Huang G.H. 
Published: October 2019

Abstract
In this study, the effect of changes in daily temperature (minimum temperature and maximum temperature) during the baseline period on daily streanflow has been analyzed. The stepwise cluster analysis method is able to use a generated cluster tree to express the complex and nonlinear relationships between predictors and predictands. The results can be found that different characteristics of air temperature and precipitation exist during different seasons. Besides, the change of water resources can be indicated and is affected both by changes of climate factors and economic consequences. The most significant findings are that the simulated streamflow under various downscaling climate projections shows an increasing trend from future to recent periods.
Optimization of electrospinning parameters and degradation properties for Gelatin/CMC nanofibers
Authors: Jongwuttanaruk K. , Surin P. , Wiwatwongwana F. 
Published: October 2019

Abstract
This research aimed to enhance strength of Nanofiber like Biopolymer as raw material for characterization which is popularly used in food and cosmetic industry and as medical material because it did not hazardously affect human body. This study employed Nano fiber characterization with Electrospinning Method by using gelatin/CMC, common and inexpensive biopolymer with cellulose that could strengthen Nanofiber.The fabrication of fiber scaffold by electrospinning method produced nano-fiber by dissolving gelatin in organic solvent, 2,2,2-trifluoroethanol, and dissolving CMC in DI water. The design of experiment was surface responds and 3 factors were analyzed including 1) gelatin concentration varied from 8-12%, CMC concentration in range of 0.6-1.0% and 3) mixture percent of CMC in range of 10-30%. After the test of tension, the highest value was 13.99Mpaderived from gelatin with 10.64% concentration, CMC with 0.81%concentration and mixture of CMC with 17.79% concentration. After that, the work piece obtained from mixing CMC with concentration at 10, 20 and 30%, 10% Gelatin and 0.80%CMC as constant due to highest volume of product from such 3 values, was tested for decomposition compared with pure-scaffold gelatin. The findings revealed that decomposition rate of CMC mixture at 20% concentration was slowest and it could be found that the result of tension testing and decomposition testing was consistent. That is, 10% Gelatin, 0.8% CMC and 20% CMC mixture gave the best value in both experiments. Additionally, it was obvious that pure-scaffold gelatin took only 1 hour to totally decompose while CMC mixture at 10%, G91 that degraded entirely in 24 hours, CMC mixture at 30%,G73 degraded in 48 hours, CMC mixture at 20%,G82 degraded in 54 hours to decompose entirely with CMC mixture. It means that using CMC which is cellulose derivative as ingredient in scaffold gelatin could strengthen it better.
Bending strength and Biological properties of PLA-HA composites for femoral canine bone fixation plate
Authors: Sadudeethanakul Saksorn , Wattanutchariya Wassanai , Nakkiew Wasawat , Chaijaruwanich Anirut , Pitjamit Siwasit 
Published: October 2019

Abstract
This research is based on the purposes to find suitable hot compression conditions of composites materials, also to optimize mechanical and biological properties of the plate specimen. The type of composites materials under this investigation are bio-polymers (polylactic acid: PLA) and bio-ceramic (Hydroxyapatite: HA). In this research, the term “The design of the experiment (DOE)” was implemented to find the relation between forming factors including the ratio of HA ratio, molding temperature, and molding pressure. The result showed that the optimum conditions of the bending test were at 5%wt. of HA, 160 °C, 7 MPa of molding temperature and pressure respectively. Biodegradation rate of a specimen was 0.0175 g/day and the specimens acquired a good biocompatibility and they were non-toxic to living cells.
Optimization of dressing parameters of grinding wheel for 9CrSi tool steel using the taguchi method with grey relational analysis
Authors: Anh Tung Luu , Pi Vu Ngoc , Lien Vu Thi , Thi Hong Tran , Hung Le Xuan , Tien Long Banh 
Published: October 2019

Abstract
This study aims to optimize the dressing parameters of grinding wheel for 9CrSi tool steel to minimize roughness average and flatness tolerance using Taguchi method and Grey Relational Analysis (GRA). These objectives are minimized by optimizing four four-level and two two-level dressing parameters in sixteen experiments based on an orthogonal array L16(44×22). Taguchi method and GRA are combined to solve the multi-objective optimization problem and determine optimal dressing parameter level combination. Results show that, the optimal dressing parameters to obtain the minimal roughness average and flatness tolerance are coarse dressing depth of 0.025 mm, coarse dressing times of 3 times, fine dressing depth of 0.005 mm, fine dressing times of 2 times, non-feeding dressing of 3 times and dressing feed rate of 1.6 m/min, respectively. Experiments with the optimized dressing parameters have been done to verify the predict model. Results of the roughness average and flatness tolerance from the experiments match with those values of the models and satisfy practical requirements.
An Integrated Management System of Man-machine Communication for Tailings Pond Based on RSCIC
Authors: Yu Guangming , Yu Yingnian , Liu Junwei , Qiu Ju , Zuo Yanhua , Zeng Xiankun , Dong Xin , Wang Weiquan 
Published: October 2019

Abstract
Tailings pond plays a very important role in the construction of mine engineering. At the same time, tailings pond also produces huge pollution to the environment. If dam break occurs, it will cause loss of people and property. In this paper, a tailings pond management system based on RSCIC is studied, the monitoring content of the system is determined, the more innovative system and hardware are emphasized, the program flow chart of digital processing is put forward. Adopting scientific and effective means to manage the tailing dam automatically can not only strengthen the safety protection of the tailing dam, but also provide a certain theoretical basis for the construction of other digital tailings dam projects.
Effect of process parameters to flexural strength of 3D printed anatomical bone part
Authors: Tajarernmuang T , Sawangrat C , Jomjunyong S 
Published: October 2019

Abstract
Training and practice on synthetic anatomical bone before perform real medical operation is useful for medical student and recently become part of medical procedure. Since there are various factors to considered, the attempt to imitate anatomical bone from medical image data of patient, using technology that based on Fused Deposition Modelling (FDM) is alternatively developed. Since durability and qualities of 3D printed model depend on process parameters which referred to 3D printer setting, this study aims to investigate effect of essential 3D printer setting parameters involve with mechanical properties of 3D printed anatomical bone part, focused on infill density and layer height, and determine regression model for mechanical strength prediction from selected printing parameters by using experimental design and statistical analysis that based on Design of Experiments (DOE). 2-levelled full factorial experiment was designed, 3 factors including layer height, infill density, and print speed were taken into account. After that, selected 27 Mid-section of femur bone from 3D medical image data were fabricated from filament of Poly-lactic acid (PLA). The models were underwent a three-point bending testing to investigate mechanical properties and statistical analyse to investigate the relationship of parameters.
Resource Scheduling Problem in Distribution Center
Authors: Hamontree C. , Prompakdee S. , Koiwanit J. 
Published: October 2019

Abstract
Due to the rapid growth of the retail shop trend recently, the Distribution Center (DC) or warehouse had become to be a vital part in the supply chain in order to store goods from multiple suppliers and deliver to multiple retailers. Cross docking is a relatively the logistics technique used in the DC in order to move materials from inbound trailers to outbound trailers as quickly as possible. From the following problem, an ineffectual DC management leads to the resources utilization problem such as machine, forklift, industrial trucks, etc. The main objective of this research is to study and solve the scheduling problem of the usage of the forklift in the Cross docking of DC and to manage the inbound and outbound docks in order to minimize Tardiness jobs, and also to maximize the efficiency of machine utilization. This study has provided the scheduling, comparison from genetic algorithm and heuristic method. As the result came out we found that the forklift scheduling by the genetic algorithm method is given the better management result better than heuristic method.