bluuebunny/crossref_metadata_2025 huggingface dataset:
Spatial distribution of dominant ions in the groundwater in Banyumudal Groundwater Basin, Central Java, Indonesia
Authors: Purnama Setyawan
Published: January 2019

Groundwater basin is an area with hydrogeological limits where it is happened all of hydrogeological processes. Banyumudal Groundwater Basin is one of groundwater basin with unique characteristic because of receiving water source from surroundings area, that would influence probably to the water quality. This study was conducted to: (1) know the spatial distribution of dominant ions concentration in the groundwater; (2) analyze surroundings factors that influence the spatial distribution of dominant ions in the groundwater. To realize the objectives, it was carried out the removal of groundwater samples in the observational wells that were determined by purposive sampling. The analyzed elements were Ca2+, Mg2+, Na+, K+, SO42-, HCO3-, CO32-, Cl- and Fe2+ . The concentration of the dominant ions was realized in the form of Stiff Diagram and then was plotted in a map, so that it could be known the distribution. To analyze the process of mixing between the groundwater and water from the other sources with different chemical characteristics, it used the Piper Diagram, whereas to analyze the surroundings effects to the ionic concentration, it was conducted the analysis of quantitative descriptive. The study results showed that the groundwater from the northern part of Banyumudal Groundwater Basin has higher concentration of dominant ions compared with the southern ones. Viewed from each ion, the ionic concentration of Ca2+ and HCO3- are higher than other dominant ions and have more varied values, so that the change of chemical characteristics of the groundwater would tend to be determined by the concentration change of them. Type of rocks is the most influencing factor to the concentration of dominant ions in the study area. Nevertheless, the domestic waste has also little effects related to the sanitary condition in around of samples location of the groundwater.
The hydrogeological mapping of the southwestern part of Serang Regency, Banten, Indonesia
Authors: Cahyadi Ahmad , Agniy Romza Fauzan , Khakhim Nurul , Purnama Setyawan , Bachtiar Igor Yoga , Prihartanto Wikan Jaya
Published: January 2019

The development of Serang City as the central government of Banten Province leads to persistently increasing demand for clean water in the area and its surroundings. This study aimed to perform the hydrogeological mapping of the southwestern part of Serang Regency. The study area covered four districts, namely Baros, Padarincang, Paburuan, and Ciomas. These four districts are the clean water source of Serang City that also functions as a buffer zone designed for the development of freshwater fishery and wetland agriculture. Hydrogeological mapping in the study area is expected to be one of the inputs in planning the use of water resources. The method used in this research included analyses of drill data, geophysical measurement results, the findings of previous studies, hydrological map scale 1:250000, and geological map scale 1:100000, as well as geomorphological mapping and field survey. This research produced six classes of hydrogeological units that covered areas with scarce groundwater productivity up to those with high groundwater productivity.
Flood insurance rate map for non-structural mitigation
Authors: Roslan Rasyikin , Omar Rohayu Che , Hara M. , Solemon B. , Baharuddin I.N.Z
Published: January 2019

December 2014 flooding in Kelantan river basin caused severe damage to economic and social infrastructure and dealt a serious blow to Kelantan state economies. Mitigation of flood disaster can be successful only when detailed knowledge is obtained about the vulnerability of the people, buildings, infrastructure and economic activities in a flood risk area. Therefore, to identify a community's flood risk, pre-disaster financial instrument will be introduced as non-structural mitigation measures know as flood insurance rate map. This instrument will be developed based on geospatial technology using satellite images, topographic surveys, cadastral map, type of community building such as residential or commercial and households’ income. Flood hazard maps and flood insurance rate map will provide the flood risk zone and flood insurance rate and premium coverage for the affected community. In additions it helps to determine the type of flood insurance coverage is needed since standard homeowners’ insurance doesn't cover flooding. Flood insurance rate map will provide affordable insurance for property owners, based on the lower the degree of risk state in flood hazard map, the lower the flood insurance premium. These insurance rate map are valuable to communities because it creates safer environments by reducing loss of life and decreasing property damage, allows individuals to minimize post-flood disaster disruptions and to recover quicker.
Gravity satellite data analysis for subsurface modelling in Mount Merapi-Merbabu, Java, Indonesia
Authors: Maghfira Puspita Dian , Windhi Niasari Sintia
Published: January 2019

Mount Merapi and Mount Merbabu are active volcanoes that lies in Java Island. Java island is part of Indonesia region. This island was subduction product of Eurasian and Indo-Australian plates, caused the island consist of many volcanoes. A regional gravity study was carried out over Mt. Merapi-Merbabu by TOPEX/Poseidon satellite data. The data was corrected by free air correction and become free air anomaly. Then, that anomaly was corrected by Bouguer and Terrain corrections, become Complete-Bouguer Anomaly. This study present subsurface density model beneath Mt. Merapi and Merbabu to identify the magma chamber.
Kite Aerial Photography (KAP) for rip current identification in Parangtritis Beach
Authors: Widartono Barandi Sapta , Wachid Muchsin Nur , Umarhadi Deha Agus , Azizah Anggini Nur , Cahyo Restu Dwi
Published: January 2019

Rip current is being the major cause of the deadly accidents in Parangtritis Beach. This occasion can be prevented by mapping and monitoring the spatial pattern of rip currents at the location which rip currents are located. Rip current location can be identified by remote sensing data or aerial observations, such as Kite Aerial Photography (KAP). This platform is low cost and can be performed in coastal area due to the massive winds there. KAP has been widely used as the platform for mapping, and some of them are implemented in coastal area. This study aims to find out the ability of Kite aerial photography to identify the rip current location in Parangtritis Beach. From several flight tests, the photo mosaic of Parangtritis Beach has been generated after the KAP has flown at the minimum 3 m/s of the wind speed. KAP can be the great potentials in coastal monitoring, especially for rip current monitoring because it is low-cost, low-energy and provides actual information.
Optimization of operational techniques in waste management case study: Lhokseumawe City
Authors: Isharyati Ade Widya , Prasetya Agus , Cahyono Rochim Bakti
Published: January 2019

The high volume of waste that is not followed by properly waste management method, makes the waste management in Lhokseumawe not optimal. This problem is shown by the level of waste service is only about 38 %, while the waste that is not transported will be cumulative in any places. This is showed that the level of waste service is below of the minimum service standard that is 60 %–90 %. It is necessary to improve the waste management, especially in the utilization of waste to reduce the waste and landfill load. This research aims to evaluated and analysis of waste management in Lhokseumawe by two waste reduction scenarios, that are waste bank scenario and recycle scenario. The method that were used in this research are material balance analysis, lifetime of landfill, and cost analysis. The result showed that waste reduction by scenario 1 and scenario 2 can reduce of waste in landfill about 49.8 % and 51.02 %. The lifetime of landfill by the waste reduction can be used for 28 years from the lifetime 18 years. Investment cost estimated that required in scenario 1 and scenario 2 are smaller than the investment cost of existing, respectively IDR746,646,860, IDR755,530,822 and IDR1,202,644,444.
Seismic microzonation based on microseismic data and damage distribution of 2006 Yogyakarta Earthquake
Authors: Perdhana Radhitya , Nurcahya Budi Eka
Published: January 2019

The 2006 Yogyakarta earthquake caused an extensive damage to various areas of Yogyakarta regions. The damage distribution indicates the role of local site effects during the earthquake as the damage extended from Bantul Regency in Yogyakarta Province to Klaten Regency in Central Java. Microzonation based on the damage distribution is then carried out using Horizontal-to-Vertical Spectral Ratio (HVSR) technique. From this technique, amplification factor and predominant frequency can be obtained and then spatially mapped. Inversion can also be conducted to the HVSR curves to infer the geological condition of the study area.
The tropopause height analysis in equatorial region through the GPS-RO
Authors: Mohd Zali Rohaniza , Mandeep J S
Published: January 2019

This study was performed to analyze the variation level of tropopause height in vertical resolution using radio occultation (RO) data from GRACE database due to the high spatial resolution of radio occultation data. The analysis was conducted for data collected in the year of 2016 and latitudinal variation of study in a range of 30° S to 30° N for an equatorial region with an interval of 5°. The CPT and LRT technique is used in this analysis to identify the tropopause height due to well performance in the previous study. The analysis shows that the tropopause height location varies in the latitude of an equatorial region with the highest level reach up to 19.1 km and the lowest is 16.4km over the year of 2016. Therefore, from the analysis that shows the correlation of highest tropopause layer at near of equatorial plane for northern hemisphere while lower tropopause layer at southern hemisphere.
Design of coal mine drainage system
Authors: Bargawa Waterman Sulistyana , Sucahyo Agus Panca Adi , Andiani Hesti Farra
Published: January 2019

Research from coal fields show that increased production from coal mines resulted in a wider pit. Changes in the water catchment area resulted in changes in the calculation of mine water volume. Excessive mine water volume affects mining activities. Large amounts of water in the pit causes disruption in excavation and loading and hauling activities. Therefore, the design of mine drainage systems is required. The purpose of the study is to analyse statistically the parameters of the mine drainage system, and to design the mine drainage system; including open drain, sump, and settling pond. The research tools used include the calculation of runoff water discharge that requires statistical analysis for rainfall data processing and the determination of catchment area (CA). The open channel dimension and settling pond design is based on the sump volume calculation. The research area has high rainfall clased for the particle to settle is 30.38 minutes. The percsification, solid percent 2.66 % with settling rate 0.0027 m/s; the time requirentage of theoretically suctioned particle is 83 %, and the settling pond maintenance time that has 4 compartments is 15, 16, 19, and 23 days.
The development of cave passage in Donomulyo, Malang-Indonesia
Authors: Labib Mohammad Ainul , Haryono Eko , Sunarto
Published: January 2019

The cave passages formed in Donomulyo sub–district are formed in epigenic and hypogenic conditions in coastal areas. The dominant factors form the morphological condition of the cave passage that is the existence of structural factors, underground water flow, and tectonism that affect the condition of the passage. Structural factors form the existence of linement that affect the cave passage. Underground water flow forms a passage due to the change of vadose, epipreatic, and phreatic conditions. The existence of tectonism leads to the removal of limestone into several levels of cave passage development, in addition, there is the collapse of blocks, plates, talus, and sheets. The development of the cave passage level is also related to surface physiographic, which is connected to 5 levels with marine terrace, including 244–325 masl (level 1), 182–244 masl (level 2), 111–181 masl (level 3), 30–110 masl (level 4), and 0–29 masl (level 5). The development of fifth level shows that the level limit is located in the Sengik Cave, the fourth level is located in the Jebrot Cave, and the second level is located in the Banyu Cave, these three caves are the output of the underground rivers.
Value change analysis of batik woodcraft in Krebet Tourism Village
Authors: Widiyastuti Dyah , Ermawati Heni , Andriyani Lilik
Published: January 2019

Krebet Village is one of the villages located in Bantul Regency, D.I Yogyakarta. As one of the centers of wooden batik industry, Krebet Tourism Village is not only a tourist destination but also has wooden batik products that become the leading commodity of the village. The profession as a wooden batik industry craftsman in Krebet Tourism Village becomes the main livelihood for most of the villagers even extends to the surrounding villages. Wooden batik production activities performed by craftsmen from the manufacture to marketing of wood batik, where the way this product marketing varies between craftsmen one and the other. This study aims to analyze the value chain activities and identify marketing distribution of wooden batik products from Krebet Tourism Village. The analysis used descriptive analysis from structured interview data to 46 wooden batik business owners in Krebet Tourism Village. The results show that the actors involved in the value chain are raw material suppliers, raw material distributors, wooden batik industries, product distributors and retailers. Differences in the value chain in some wooden batik workshops have an impact on the different ways of product marketing which further contributes to the pattern of distribution of wooden batik commodity and earnings turnover.
The development of p53 tumor diagnosis and drug design strategy in its disordered region
Authors: Zhang Yiyun
Published: January 2019

As a tumor suppressor protein, p53 is directly involved in the control of cell cycle arrest, which plays a crucial role in cell metabolism, growth, apoptosis and responses to different types of damage or stress processes. And since the tumor and cancer are usually related to the mutation or functional inactivation of the p53, it’s necessary to investigate the mechanism of p53 functioning the tumor and other disease, trying to figure out its drug design strategy. In this paper, a brief introduction of p53 is given, including the structure, function and properties. Subsequently, the relationship of p53 gene and cancer is also discussed. In the end, a new rational drug-design for disordered region of p53 was summarized
Research Progress of Relationship between Intestinal Flora and Allergic Diseases
Authors: Wang Weiliang
Published: January 2019

Allergic diseases are the major health problems in the world today. The abnormal structure of intestinal flora is closely related to the occurrence and development of allergic diseases. The formation process of intestinal flora structure in early life is affected by various factors such as delivery mode, feeding mode, addition of probiotics or prebiotics, and heredity, etc. Moreover, the abnormal intestinal flora structure in early life is an important influencing factor for later allergic diseases. In this paper, the relationship between early intestinal flora structure abnormality and the occurrence and development of allergic diseases is discussed in combination with the latest literature.
A Model for Physical Activity Behavioural Change in Middle Aged and Older People with Type 2 Diabetes
Authors: Zheng Mingyue , Yang Shenqiao , Liu Yanting , He Qian , Hu Peng
Published: January 2019

Objective: To identify key determinants of increased PA level among adults with T2DM to improve a hierarchical model, based on social cognitive theory (SCT) and Ecological Models. It hypothesises and clarifies how these determinants relate to physical activity which is important to evidencebased PA interventions in middle aged and older people with T2DM. Methods: Full transcript studies in English were searched in the following databases: CINAHL, Medline on OvidSP, PubMed, and PsycINFO. Included articles were selected by following these combined terms: type 2 diabetes, physical activity, exercise, physical inactivity, correlates, barriers, theory, self-efficacy, ecological models. And they (n=124) met the following criteria: 1) T2BD, aged 35 and over; 2) reporting determinants or factors 3) indicated physical activity or exercise as an outcome variable. Additional records identified via bibliographies (n=4), duplicates were removed (n=95), non-full-text articles (n=8) and no-English (n=2) were excluded. Finally, of the 21 articles retrieved from databases (9 of them are reviewed studies), only 12 original articles including qualitative and quantitative study were reviewed. Results: The determinants are divided into four classifications; physical, psychological, social and environmental factors, adapted combined SCT with Ecological Model of physical activity with T2MD in middle aged older adults. Self-efficacy is the core mediators with physical, environmental, and social factors, that fact is the core of SCT. Self-efficacy had an indirective negative influence by physical factors particular regions with physical barriers such as cold weather, low-density land use. Therefore, managing self-efficacy is proposed to effectively change for physical activity. It is hypothesised that improve social supports from family may help people with T2DM increase the physical activity level. Conclusion: Therefore, it is evident from the above that many factors of PA in middle aged and older people with T2DM exist. And self-efficacy is an important determinant with PA. There is a need to clarify whether these variables are determinants and the causality between these variables. Nonetheless, theory-basement approach to studying PA in this population is required based upon this study
Effect of Wasabi Extract on Inflammatory Response of BV2 Cells Induced by Lipopolysaccharide
Authors: Chen Chen , Yuanyuan Qiu
Published: January 2019

Objective: This study was to investigate the effect of wasabi extract 6-(methylsulfinyl)hexyl isothiocyanate (6-MITC) on preventing neuroinflammation. Methods: The activation of BV2 microglia cell was introduced by LPS to establish an in vitro neuroinflammatory cell model, and the influence of 6-MITC on the survival rate of BV2 cells was deceted by MTT assay and the mRNA expression level of inflammatory factors in each group were deceted by RT-qPCR. Results: 6-MITC can significantly down-regulate mRNA expression levels of the inflammatory factor interleukin-1β, IL-6, tumor necrosis factor-α (TNF-α) and nitric oxide synthase (iNOS) after activation of BV2 cells induced by LPS. Conclusion: 6-MITC can inhibit LPS-induced microglia activation and decrease inflammatory response of BV2 cells.
Study on the submerged fermentation process producing perylenequinones derivatives by shiraia sp. AL18
Authors: Zhang Yuejie , Lu Mingfeng , Zhang Chunxiao
Published: January 2019

The perylenequinones derivatives (PQDs) are potential photosensitizers, which have a high effective light-induced biological activity, such as anti-HIV, antimicrobial and anticancer activities. In this work, the submerged fermentation process of filamentous fungus shiraia sp. AL18 producing PQDs in a stirring fermentation tank was investigated through single factor optimization. The effect of the stirring speed (450 r/min, 500 r/ min and 550 r/min at ventilation quantity for volumes of air per volume of liquid per minute (VVM) = 1:1) and ventilation quantity (VVM = 1:0.8, 1:0.65 and 1:0.5 at stirring speed of 500 r/min) on the process of submerged fermentation by stirring fermentation tank in batch fermentation was investigated using the monosyllabic test. The results suggest that the optimum stirring speed for biomass is 500 r/min and the optimum ventilation quantity for biomass is VVM = 1:0.65, and the maximum dry cell weight (DCW) reached to 19.67 g/L. The stirring speed for the optimum yield of PQDs is 500 rpm and the ventilation quantity for the optimum yield of PQDs is VVM=1: 0.8, and the maximum yield of PQDs reached to 0.3218 g/L. The yield of PQDs was correlated with pH value, dissolved oxygen (DO) value, the content of reduced sugar in the period of fermentation.
Study on the risk evaluation model of catering O2O food quality and safety
Authors: Tang Dong-Ping , Al Qadami Saddam Fuad Hussein , Wang Xue-Min , Cai Cui-Ying
Published: January 2019

The purpose of this paper is to analyze the risk points that may lead to food safety in the operation and development of catering O2O supply chain. Based on the operational mode of catering O2O supply chain, the system risk factors were identified by theoretical and literature analysis. Also, the expert Delphi method was used to put forward a comparatively perfect food quality and safety risk assessment system in catering O2O industry, and an evaluation model was constructed based on the fuzzy comprehensive evaluation method of analytic hierarchy process (AHP) to provide a reference for the development of food safety management of the catering O2O industry.
Water Quality Pollutants and Health Risk assessment for Four Different Drinking Water Sources
Authors: Tian Miaomiao , Li Wenzhao , Ruan Meijuan , Wei Jing , Ma Weiwei
Published: January 2019

Drinking water quality has become a great concern to the whole society, especially in heavily polluted rural areas. This paper analyzes the water quality of 100 water supping the US Environmental Protection Agency's (USEPA) recommended health risk assessment model. The results showed that the microbial indicators exceeded the standard in the whole year, and some of the water supply units which lead, nitrated and dissolved solids exceeding the standard. The model recommended by EPA is applied to establish risk assessment model for health risk assessment of adults in wet and dry seasons, respectively. Results of HRA indicated that carcinogenic risk of chromium was 7.61E-05a-1 and the risk value of arsenic was 9.92E-06a-1 which exceed the maximum acceptable risk level recommended by USEPA 5.0×10-5 closely to the ICPR recommendation 1.0×10-6. Meanwhile we conduct health risk assessment (HRA) on relevant non-carcinogenic indicators: nitrate is 2.95E-09a-1, the risk value of fluoride (F) is 2.49E-09a-1, the risk value of lead is 2.39E-09a-1 and copper (Cu) 9.00E-10a-1 exceeds the maximum acceptable risk level risk value recommended by USEPA 1.0×10-9. The above indicators require priority control and management of pollutants that are prioritized and managed.
Gold-nanoparticles-graphene modified glassy carbon electrode for trace detection of lead ions
Authors: Cheng Yanchao , Sun Fangfang , Lee Jaebeom , Shi Tingchun , Wang Tianze , Li Yutong
Published: January 2019

In order to fulfill rapid and trace detection of heavy metals, in the study, gold-nanoparticlesgraphene modified glass carbon electrodes were used to detect lead(Pb(II)) ions. The lead ion (Pb(II)) standard sample in acetic acid-sodium acetate buffer solution was detected by the modified electrode, and the detection conditions were optimized. Under the optimized conditions, in the buffer solution with pH=4.5, the lead ions peak current showed excellent linear relationship with the lead ion concentration in the range of 0.2~50μg/L (R2=0.995), and the minimum detection limit was 0.34μg/L. At the same time, the actual water samples were determined by nano-gold-graphene/glass carbon electrodes for lead ions, and the recovery ranges was 92.94%~101.47%, which showed that the gold-nanoparticles-graphene/glass carbon electrodes possessed significant detection performance for the actual water samples.
Effect of Titanium Alloying on the Microstructure and Properties of High Manganese Steel
Authors: Zhuang Wenwei , Zhi Haixu , Liu Handai , Zhang Daxiang , Shi Dongmin
Published: January 2019

The test used casting process to alloy the traditional high manganese steel with adding Ti. The surface morphology of the high manganese steel sample was observed by the scanning electron microscopy.At the same time, the hardness, the tensile strength and the wear resistance of the sample were tested. Compared with the high manganese steel without alloying, it studied the micro-structure and properties of modified high manganese steel . The results show that the grain of high manganese steel alloyed by titanium alloy is refined, the inclusions is dispersed and their size is reduced. The hardness of high manganese steel is increased by 87 %~263 %, but the tensile strength is reduced. Compared with the sample without added titanium element, the wear resistance of the alloyed high manganese steel is significantly improved.
Positioning of Environmental Art Teaching Talents for Industry Needs
Authors: Shi Shaomeng
Published: January 2019

Design continues to improve people's quality of life and improve people's living environment. Design has penetrated into every aspect of our lives, from a small logo to a city's planning. Design has a close relationship with the society and has attracted more and more people's attention. The ultimate goal of design is to cultivate applied design talents for the society, who can meet social needs, meet people's needs, and have innovative spirit and practical ability. Faced with the competition of the market and the requirements of corporate enterprises for applied art design talents, environmental art design education should strengthen practical teaching, so that the students who train the students can apply what they have learned and use them to adapt to the development needs of the times and society.
The Study on the Residential Space in Culture-led Urban Regeneration: a case study of Residential Space in Henan
Authors: Fan Dan-Dan , Kim Se-Hwa
Published: January 2019

The concept of culture-led urban regeneration is one design solution for restoring urban vitality and re-creating urban culture based on the tangible and intangible cultural resources of the city. As an important part of culture, residential culture is changing with the development of society. Literature shows that there are still deficiencies in the study of residential culture in culture-led urban regeneration. This study tried to find the cultural identity and belonging in the residential space in one hand, create a suitable space layout in the other hand. The living space pattern of traditional and modern is summarized. The cultural characteristics of Henan province have been abstract and offering the basis of the improvement solution for living space from the perspective of cultural. This study offered the reference to the culture-led urban regeneration of Henan province.
The Design of Follow-up Hydraulic Muffler Based on Spring-Damp Regulating Device
Authors: Shan Chang-ji , Bian Yi-duo , Dai Ting-ting , Yan Cai , Du Guo-fang , Yang Hai-tao
Published: January 2019

The follow-up hydraulic muffler can make the natural frequency of the muffler equal to systematic pulsation frequency in time by changing the section area of the quality chamber so as to achieve the best attenuation effect. In this paper, a spring-damp regulator is installed on the basis of the hydraulic muffler, and the static and dynamic characteristics of the follow-up hydraulic muffler are analyzed by measuring the rotational speed of the pump with the sensor. The results show that the hydraulic muffler based on the spring-damp regulator can effectively attenuate the pulsation.
Research on Membrane Structure Performance
Authors: Tian Xuyu , Wu Shuntao , He Peiling , Zhou Xiong , Bian Zhaonian , Hu Jinlin
Published: January 2019

Membrane materials and open-close roof buildings are new building materials and structural forms, which have developed rapidly in recent years. This new form of close combination of architecture and nature has enriched the connotation of architecture, exhibited the city, but also to the architectural design and construction has brought great challenges. Through the research and analysis of the performance of the membrane material, this study provides a reference for the design and construction of the domestic membrane material for the opening and closing roof structure.
Analysis of dynamic characteristics of climbing formwork under wind loads
Authors: Hu Shicheng , Li Jun
Published: January 2019

This article took the climbing formwork which constructed on the bridge at a height of 100 meters as the prototype, then established the finite element model and conducted modal analysis. The APDL language is used to load the wind load which is simulated by the Matlab programming then calculated the displacement and acceleration responses of the climbing formwork and further. The results show that the bending effect of the climbing formwork is more obvious. This calculation method of calculating the wind load, improve the anti-wind design method of the climbing formwork.
The Inspiration of Light and Shadow on Design
Authors: Tang Hai-yan , Que Yi , Zhang Zhi-wei , Li Qi
Published: January 2019

Shadow as a design element applied to architectural and landscape design, can embellish, foil, and even enhance the subject. The shadow can also make the design works full of vitality and characteristic. Based on the actual cases, this article analyses the effect of shadow on architecture and landscape, and reveals the special effect producing by shadow. The effects include breaking the visual limitation, enhancing the connotation and artistic conception of the design. Shadow can give people an unexpected artistic appeal and spiritual shock. And bring much richer experience and even much more deep thinking to people.
Quality Control of Waterproof and Drainage Construction for Planting Roof of Underground Garage Based on PDCA – Take A Project in Q City for Example
Authors: Chen Si , Liu Ming , Sun Tingting
Published: January 2019

The roof of the underground garage of project A in Q city has been designed with waterproofing and drainage system of the planted roof. In the process of construction, there are some quality problems. Through the use of PDCA quality management cycle method, the quality problems are investigated and analyzed. And the corresponding plans, implementation of countermeasures, consolidation measures are made, so that the quality problems can be finally resolved to achieve the desired goal.
Comparison and experimental verification of embedded parts of straight anchors under shear and tension-shear
Authors: Gu Yunfan , Shi Baocun , Lu Zhixiang , Liu Yang , Chen Qiang
Published: January 2019

As one of the important components of the joint connection in the steel-concrete structure, the embedded parts of straight anchors have a great influence on the safety performance of the structure. People have different opinions on the mechanism of the force of the embedded parts, and the calculation method of the bearing capacity of the embedded parts is also different. In this paper, the research on the theory of the sheared and tension-sheared parts of embedded parts of straight anchors in the previous literature and the current norms is conducted, and the existing calculation methods of the ultimate bearing capacity are compared. The calculation method is compared with the experimental results, and the theoretical verification analysis is performed. The research results show that: Nowadays, the calculation of the shear capacity of the anchored parts of the anchors is conservative, and there are some factors that have not been considered, so they are much smaller than the actual bearing values. For the shearing ability, the two are the calculated values whcih are close to the correlation between the pulling and shearing. When the embedded parts are damaged, the anchors fully give full play to the tension-shear effect, which can be used in the project.
New water treatment technology - homogeneous membrane electrodialysis
Authors: Tang Guorui , He Kuan , Liu Deqing
Published: January 2019

This paper introduces the structure and technical principle of the homogeneous membrane electrodialyzer, and describes that the homogeneous ion exchange membrane has excellent ion exchange capacity, low water loss rate, stable physical and chemical properties and effective removal of organic matter. The homogeneous membrane electrodialysis technology should be combined with other water treatment processes in practice to achieve better treatment results.
A novel UV pumped yellow-emitting phosphor Ba2YAlO5:Dy3+ for white light-emitting diodes
Authors: Deng Bin , Chen Jun , Zhou Chong-song , Liu Hui
Published: January 2019

A series of novel Dy3+ activated aluminate Ba2Y1-xDyxAlO5 (x = 0.01–0.30) red-emitting phosphors were synthesized through a high-temperature solid-state route at 1380°C. The X-ray diffraction patterns revealed that the samples were well crystallized in the space group P21/c (No. 14). The spectrum analysis revealed that under UV light excitation, Ba2YAlO5:Dy3+ phosphor exhibited blue and yellow peaks corresponding to 4F9/2–6H15/2 transition and 4F9/2–6H13/2 transition, respectively. The optimum dopant concentration of Dy3+ ions is around 2 mol% and the critical transfer distance of Dy3+ is calculated as 29 Å. The concentration quenching mechanism between Dy3+ has been investigated. Results indicate that Ba2YAlO5:Dy3+ offers the excellent optical properties as a potential yellow-emitting phosphor candidate for n-UV LEDs.
Control Strategy and Performance Simulation Study on Extended Range Electric Vehicle
Authors: Wang Limian , Wang Shumao , Song Zhenghe
Published: January 2019

Electric vehicles are recognized as an effective way to alleviate the energy crisis and environmental degradation, and extended range electric vehicles which have both the technical advantages of hybrid electric vehicles and pure electric vehicles, have gradually become a research hotspot in the automotive industry. In this paper, the system structure design of the extended range electric vehicle is carried out. On the basis of the pure electric vehicle, the engine and generator set are added. The control strategy model is established and the simulation research is carried out. The results show that the proposed control strategy model optimizes the working range of the range extender, takes into account the performance of the battery and the drive motor, and shows good tracking characteristics.
Implications of ocean bottom temperatures on the catch ability of American lobster
Authors: Zhao Xiaoxu , Ding Pengwen , Pang Jilei
Published: January 2019

Since the beginning of the satellite era, the general trend of global and regional sea-surface temperature (SST) have continued to rise and, in the recent decade, the rate of warming has increased dramatically in the Gulf of Maine. However, due to variations in thermal stratification in the water column, SST is not the best measure to determine the impact on benthic organisms. So understanding the spatial and temporal variations of the ocean bottom temperature is critical to fisheries management. Since 2001, the Environmental Monitors on Lobster Traps (eMOLT) project has been implemented. The lobster fishermen have volunteered to collect bottom temperature and American lobster catch data from dozens of locations off the New England coast. Now we can use these data to analyze the relationship between ocean bottom temperature and lobster catch. Using data collected over the past decade, we examine the effect of temperature, temperature change, soak time and other factors on the catchability of lobsters. Our results suggest that there is a increase in catchability at the same time there is a) a temperature rise over many years and b) day-to-day temperature changes.
Competition and Cooperation Relationships of Multi-category Ports Based on the Improved L-V Model
Authors: Lei Zhiyi , Zhu Yifan , Chen Liling
Published: January 2019

The improved Lotka-Volterra model for the multi-goods of the multi-ports is proposed based on the competition of kinds of ecological populations in nature. Based on the analysis of the current throughput, annual average growth rate, potential throughput growth space, and the impacts of other port cargo throughput, the model establishes a competition coefficient matrix to determine the competitive cooperation model between different ports. The model is used to analyze the competition and cooperation relationship of different cargo types in four ports of Fujian. The results show that the model can reflect the mutual influence mechanism of competition and collaboration of multiple types of cargo in multiple ports, which can provide an effective and targeted basis for optimizing the cargo structure of ports and improving the competitive relationship of the ports.
Innovative and smart city: A theoretical study of adaptive solutions for sustainable solar urban districts
Authors: Zhang Jingxuan , Wang Chengwu , Chen Xiaohui
Published: January 2019

This paper is a theoretical study of governing solar urban districts using the smart city system. It first presents the major theme of the sustainable urban future, points out the position of the solar energy in urban sustainable development. Then it presents the opportunities and challenges of the solar energy system, states that the innovation of technology from both the soft side and the hard side are the key points for governing the solar urban districts. The paper also shows the relationship between innovation, economies, and social sustainable development. Finally, the paper presents the smart city system as an innovative system. It needs to govern the solar urban district from all aspects (including but not limited to public services, city administration, and management, economy, pro-business environment, built environment and city infrastructure, natural environment and ecological sustainability). The lifecycle thinking and the GUUD model can be used to analyse and monitor the system. However, managing those fragment elements is not that simple. One of the challenges of integrating a smart city system is to build a connection between fragmental elements and make individual islands communicate with each other in order to achieve common goals.
Study on sustainable utilization of cultivated land eco-economic system in Yunnan province based on energy value analysis
Authors: Wen Zhong , Changbiao Zhong
Published: January 2019

The research on sustainable utilization of cultivated land eco-economic system has important practical significance for understanding cultivated land status and promoting sustainable utilization of cultivated land. Based on energy value theory and analysis method, this paper establishes the evaluation Index system of cultivated land eco-economic system in Yunnan Province, and chooses 5 main indexes, such as net energy output rate, environmental bearing ratio, system production dominance, system stability index and sustainable development performance index, etc. The energy input-output structure and sustainable development status of cultivated land eco-economic system were evaluated. The results show that the net energy yield of cultivated land system in Yunnan province is 0.29, lower than the national average, and the competitiveness of agricultural products is not enough; the system production dominance and system stability index are 0.51 and 0.68 respectively, which indicates that the system self-control, adjustment and feedback need to be strengthened, the environmental carrying capacity and sustainable development performance index were 0.66, 4.21, reflecting the province's arable land system in the sub-sustainable state. Therefore, the current agricultural development mode should be adjusted to optimize the input structure, and we should actively introduce external energy value, make full use of external resources, and relieve resource pressure. On the basis of applying agricultural science and technology, strengthening the utilization intensity of renewable auxiliary energy, developing green industry, reducing the environmental pressure on cultivated land system, realizing the sustainable utilization of cultivated land system.
Research on a rapid detection method of pesticide residues in milk by enzyme inhibition
Authors: Yang Xiao-mei , Gu Yi-peng , Wu Shu-jie , Feng Ling , Xie Fang
Published: January 2019

A rapid detection method of pesticide residues in milk by enzyme inhibition was researched. Construction of a quickly reaction system of enzyme inhibition for determination of organophosphorus and carbamate pesticide residues was achieved. The analysis of color reactions of milk showed a good correlation between color intensity and content of tolclofos-methyl, methamidophos and isoprocarb 1-naphthalenyl methyl carbamate. The detection limits of the four pesticide were 0.5~1.0 mg/kg, which were below the level of detection required to satisfy legislation in china. This method is simple and inexpensive and suitable for rapid detection of pesticide residues in milk.
Analysis of Output Characteristics of Typical Distributed Wind Power
Authors: Dong Mingyu , Li Dezhi , Chen Fenkai , Wang Meiyan , Chen Rongjun , Liu Peiliang
Published: January 2019

With the development of smart power distribution technology in the future, a large range of power supply load (such as distributed wind power generation) will appear on the power receiving end. When distributed wind power is connected to the power grid on a large scale, it will have a certain impact on the safe and stable operation of the power grid. However, if the wind power output characteristics can be analyzed and the wind power output is properly regulated, the one-way flow of power from the distribution network to the user side will be broken, so that the future "network-load" has dual interaction characteristics based on response and substantial power exchange.
Analysis of microbial community and pollutants removal performance in the simulated reaction pool by immobilized microbe technology
Authors: Fang Qing , Tang Hai-fang , Xian Ping , Bai Jun-cen
Published: January 2019

In this lab-scale simulation, the performance of aerated immobilized microbe (IM) in in-situ pond sedimentation remediation, and the microbial community was studied. It is known for the results that total organic matter (TOM), total nitrogen (TN) and total phosphorus (TP) in the sediment can be effectively reduced by aerated immobilized microbe technology. The polluted raw water, classified as inferior Class-Ⅴ according to the surface water environment quality standard (GB3838-2002), upgraded to Class-III in 30-days remediation with TOM, TN and TP removal rates of 33.35%, 43.35% and 23.20%, respectively. In contract, the control group without the assistant of aerated immobilized microbe still remains at Class-IV. High-throughput sequencing analysis reveals that immobilized microbe technology could improve the species diversity and abundance of the flora, and enhance the similarity between the sediment and the overlying water in the system. The dominant bacteria of the overlying water were Perlucidibaca, Limnohabitans, Bacillus, Hydrogenophaga, Mycobacterium etc. And the dominant bacteria of the sediment were Methanolinea, Methanoregula, Candidatus Competibacter, Methanosaeta etc. Total phosphorous, certified by the redundancy analysis, is the key environmental factor of microbial community structure in both overlying water and sediment.
Evaluation of ecological suitability of rural tourism land — a case study of Xi’an city
Authors: Fan Bing , Yang Wei-li
Published: January 2019

Ecological suitability evaluation is an important prerequisite for rational distribution of tourism. Take Xi’an as an example, selecting six factors as evaluation indexes: elevation, slope, vegetation coverage, river, landscape quality and traffic. After using RS, GIS techniques and resorting to factor weighted super-position method and obtaining the results. The results show that the most suitable, suitable, basic suitable, unsuitable and unavailable land of Xi’an rural tourism respectively account for 17.5%, 25.4%, 20.63%, 22.12% and 14.35%. According to the distribution pattern of different suitability, the corresponding land use measures are put forward for development of rural tourism in Xi’an city, which provides a theoretical basis for Xi’an to explore the coordinated path of ecological protection and economic development.
Determination the optimal tilt and azimuth angle of photovoltaic system for maximum energy in Bucharest region, Romania - Case Study
Authors: Mitiu Mihaela Andreea , Olteanu Marius Viorel , Deak Gyorgy , Raischi Natalia Simona , Cociorva Danut
Published: January 2019

This study was conducted to evaluate the feasibility of installing a photovoltaic system for supplying the electric load of an environmental institute and to determinate the optimal tilt and azimuth angle of an 100 kW photovoltaic power plant located on the roof of institute. Those parameters plays an important role in maximizing the solar radiation collected by a PV panel. Simulations were made with PVsyst V6.39 for south-east orientation (100; 450) and south-west orientation (100; 450), and for the tilt angle the simulations were made at 100, 150, 370, 600 and 900. The simulation has been done to study the influence of the photovoltaic panels orientation on the amount of electricity produced each month of the year as well as on the total annual amount of electricity. Was experimentally determined by repetitive simulations in the range 300-400 for tilt angle and zero azimuth, optimal parameters for the position of photovoltaic panels. Was defined as the optimal position, the pair of values [zero azimuth, tilt angle 370] where the plant generates maximum energy in one year compared to any other set of values that defines the position of the photovoltaic panels.
Experimental research of a four-stroke piston type compressed air engine
Authors: Zeng Fancong , Xu Jinli , Zhao Rui
Published: January 2019

The purpose of this paper is to investigate working performance for a four-stroke piston type compressed air engine (CAE) via experimental research. A conventional internal combustion engine(IC engine) is modified to a four-stroke CAE and a mathematical model is set up. Working performances are investigated by output torque, power, air consumption, exhaust pressure, exhaust temperature and cylinder pressure on a test bench. The CAE is installed on a vehicle for the road test. The experiment and analysis show several meaningful results. The increase of the supply pressure will result in the increase of the rotational speed, and it can effectively improve the output torque and power. However, it can lead to an increase in air consumption. The success of this application demonstrates compressed air cars are likely to be industrialized duo to their zero pollution and zero emissions.