bluuebunny/crossref_metadata_2025 huggingface dataset:
Architechnopreneurship: instrument calibration
Authors: Wijaksono Sigit , Sasmoko  , Indrianti Yasinta , Rahmayati Yenny
Published: August 2021

Jakarta as the capital city of Indonesia has the potential to be prone to flooding duringthe rainy season. Geographical conditions, dense settlements, drainage systems and river flow conditions are various causes that require complex handling. Therefore, it needs synergy from various professions and expertise to be able to overcome problems that have social and economic impacts. Architechnopreneurship is a multidisciplinary concept developed as an effort to provide solutions for communities to survive in areas that are potentially affected by flooding. An architect’s work that has a content of beauty provides education for the public to take advantage of housing as a place of refuge equipped with technology as a warning system as well as providing insights to bring the value of entrepreneurship to life. To achieve this goal, an instrument will be made that will be distributed to the wider community to assess this architechnopreneurship concept building sketch. This study aims to describe the results of the architechnopreneurship instrument calibration. The research method used is the Neuroresearch method, a mixed method with an emphasis on the exploratory and explanatory research stages. The result of this research is an architechnopreneurship standard instrument that can be used to measure the architechnopreneurship concept building sketch.
The Rejuvenation of the Settlement at Kapuk West Jakarta
Authors: Christian  , Tomasowa R , Himmayani V
Published: August 2021

Increasing the population results in a higher capacity of limited available land. The need for houses for low-income population groups is hard to fulfil. This causes many slums that require redevelopment to provide comfort for the people who live in the settlement. It also occurs in citizens association No. 12 Kapuk, West Jakarta. There are 11 standards of the Central Bureau of Statistics in conducting an assessment of the slums, one of them is ventilations. Rejuvenation by the design of ventilation through the shape of grammar can improve the quality of the housing specifically in every house.
The Application of Balinese Tri Hita Karana and Tri Loka Concept in Children’s Creativity Hub in Kuta, Bali
Authors: Wulandari A A A , Yogita S B , Simanjuntak P M
Published: August 2021

Balinese cosmological beliefs have become a very important foundation in Balinese lives, including architecture. Balinese architecture does not simply consist of physical and natural materials, it also seeks balance and propriety. It needs to be in a harmonious balance relationship between humans with humans, humans with their natural surroundings, and humans with God or known as Tri Hita Karana. This study tries to apply this concept that is usually used in architecture, within an interior space with a children’s creativity hub in Kuta, Bali as a study case through the qualitative method. The result of this study proposed a design concept ‘Jelajah Riang’ a concept that is suitable for the function of the space and can be embedded with Tri Hita Karana as well as Tri Loka concept, with three rooms used as a sample; the break room, dancing studio as well as painting and drawing studio. In these three rooms, not only the activities designed suitable to those concepts but also the interior elements, such as wall and floor finishes, lighting, ventilation, and so on
Post covid-19 public space adaption: a case study of building entrances in Jakarta
Authors: Ruki U A , Wulandari A A A
Published: August 2021

Recently, all public facilities in Jakarta have been affected by the Covid-19 pandemic; offices and retailers are closing their stores since the beginning of the outbreak, but the other facilities such as airports, train stations, and hospitals are still open while following the new normal protocols. Additionally, to help flatten the curve of Covid-19, buildings are taking transmission caution towards their facilities and interior spaces during the pandemic. This study’s main objective is to provide a review of the concepts of adaption within a building to the occurring issue of Covid-19. An entrance is the first gate or door to welcome customers, but unfortunately, buildings’ entrance areas are undergoing several adjustments of space and functions. In this research, the design thinking method is combined with qualitative analysis using tools such as benefits maps to help build competitive advantage and communication strategy, what kind of activities that give height, low benefit and how easy or difficult it might be to implement the strategy. This study concludes objectives in delivering new normal protocols within the building facility with a recommendation for entrance areas to provide several tools. Fulfilling the customer’s expectation is one way to increase the trust and a feeling of safety in customers’ perceptions. Entrance space adaption will also give customers a positive perception of the buildings when they enter the facility. Additionally, it will also give a long-term solution for the new normal protocols taking place. Finally, the eight concept activities could be utilized as a guideline and strategy for facility and building maintenance proposals to add value to facilities’ long-term solution.
Allometry and condition indices of reef fishes caught by bobo fish traps in Barangay Bato, Sta. Cruz, Davao del Sur
Authors: Alcando Darrell
Published: August 2021

The reef fishes that were caught during the sampling period through the use of bobo fish traps were identified and were subjected to length-weight relationship analysis as well as condition index establishment. The results revealed that there were 16 species belonging to 9 families associated with bobo fish traps in the study area. The establishment of length-weight relationship for fourteen species indicated that they all grew allometrically in which ten (10) species out of the 14 attained negative allometric growths while the remaining 4 species attained positive allometric growths indicating that most of the fish becomes less round or slender as they grow in length. The condition index (relative weight) of the 10 species in this study attained more than a hundred percent value indicating that they attained more weight in comparison with the observed population. Based on these findings, it has been concluded that only a small number of species of reef fishes were associated with bobo fishing method in the area. The obtained negative allometric growths attained by most of the species implied that the specimens probably face possible threats regarding food availability. Condition index analysis results may indicate an overall healthy environment for the fishes regardless of the possible threats on food resource. Nevertheless, the confounding result manifests the complex interaction of fish growth with environmental changes which was deemed difficult to extrapolate.
Sustaining Esturial Creeks: Water Corridors in Mitigating Flooding in Manila, Philippines
Authors: Ancheta Arlen A.
Published: August 2021

This paper articulates that estuarial creeks as water corridors are essential part of urban flooding mitigation. These water corridors drain excess water from the city to the bay area reducing inland flooding while at the same time flushing pollutants during tidal changes. Using an institutional analysis, it is argued that estuarial creek rehabilitation in the City of Manila, Philippines is based on mandate, policies, legal frame, and programs. Results show that the estuarial creeks have been silent witnesses to the changing human landscape of Manila. These water corridors in congested Manila have been cleared, cleaned and widened by government agencies but were not maintained as natural space breaks in mitigating flood due to short term targets. Their deteriorating conditions have added to Manila’s waterway misery. In conclusion, the rehabilitation of the esteros is a reflection of the institutional arrangements in managing the waterway system in Metro Manila.
Leverage Factors at Red Brick Production Centers in Sinar Tanjung Village, Banjar City, West Java Province
Authors: Rosmala Fenty , Bambang Azis Nur , Purnaweni Hartuti
Published: August 2021

The existence of a certain traditional red clay brick production area has helped to boost the community’s economy. Although the sporadic existence of production units, in which many were not established based on a research stage with the concept of sustainable development, has consequently generated environmental damage. Land as a non-renewable natural resource has limited carrying capacity and its utilization needs to be regarded carefully for the present and future generations. This study aims to identify leverage factors that can act as an intervention for better environmental management at the red brick production centers in Sinartanjung Village, Pataruman District, Banjar City, West Java Province. The present research is based on the concept of sustainable development triangle (economic, ecological, and social dimensions) incorporated with analysis of Rapid Appraisal for Fisheries (Rapfish)-Multi Dimensional Scaling (MDS) from the results of the assessments of 25 red brick production units. It starts with the identification of sustainability issues to be discussed, determination of the analysis unit and attributes, data entry, and Rapfish analysis to determine the area’s sustainability status and leverage factors. The results showed that red brick production centers were not yet sustainable obtaining a value(64.47). Moreover, the leverage factors identified were: profit transfer (economic dimension), level of air pollution (ecological dimension), the trend of changes in the livelihoods of the local communities (social dimension).
Sustainability of Old Semarang to World Heritage: Challenges in Coastal Area
Authors: Rahdriawan M , Yuliastuti N , Indrosaptono D
Published: August 2021

Historical cities can be an important part of economic, social, cultural, and environmental improvements, an important aspect of the city’s heritage sustainability. To that end, the Semarang City Government has revitalized the old city located near the north coast of Java, which gives many challenges in achieving world heritage status. This paper aims to examine the sustainability of Semarang Old City management’s towards world heritage in the issue of management challenges in coastal areas. The method used was qualitative by interviewing sources and was supported by a meta-analysis of various studies. The results show that there is much evidence of a physical decline in the old city area. This occurs because of the reclamation process, land subsidence, rising seawater, and people who are not aware of supporting a good drainage system. The hope is that there is good sustainability management of heritage areas to support cultural, social, and economic activities.
Estimation and analysis of GNSS receiver differential code bias in Southeast Asia using a new method
Authors: Wang Qisheng , Jin Shuanggen , Hu Youjian
Published: August 2021

The receiver differential code bias (DCB) is one of the main errors in GNSS navigation and positioning as well as ionospheric monitoring. In this paper, we present a new method to estimate the receiver differential code bias (DCB) using Multi-GNSS observations in Southeast Asia. Different from the traditional method by using ionosphere modeling or Global ionospheric map (GIM), the total electron content (TEC) of station in the new method is estimated directly together with the receiver DCB. The data of one year with 34 stations were used to evaluate the performance of the presented method. The results show a good agreement between our estimated receiver DCBs and the MGEX DCB products and the RMS of eight types of GNSS receiver DCB are mostly less than 1ns with respect to the MGEX products. Finally, the stability of GNSS receiver DCB was analysed for eight stations located in Southeast Asia as examples. The result indicates that those stations were relatively stable with mostly less than 1ns of STD of receiver DCB. Moreover, no evidence of latitudinal and receiver type dependencies of the stability of receiver DCB for those selected stations was found.
Study Risk Minimization of The Use Bottled Drinking Water (BDW) By Consumers Using Hazard Analysis Critical Control Point (HACCP) Method
Authors: Karnaningroem Nieke , Pradana Adhitia Satria
Published: August 2021

Bottled drinking water (BDW) is an effort to meet the demand for drinking water needs of the community which continues to increase every year. BDW is the community’s main choice because it can be consumed directly without the need to cook it first. The high demand for drinking water produced by bottled water requires a comprehensive, easy to apply, and standardized quality control method to maintain and improve the quality of the products produced so that they are safe for consumption by bottled drinking water customers. The suitable method for quality control is the method Hazard Analysis Critical Control Point (HACCP). This method is a risk analysis system by establishing an appropriate control and supervision system to avoid irregularities that can lead to poor quality of drinking water products produced, as well as producing quality bottled water products. The HACCP method can be applied to all aspects of production and aspects of human resources (HR) in bottled water starting from raw water management until the product is produced. In this method, there are 5 important principles used, such as analyzing the risk of hazards that can occur during the production process, determining the critical point of hazard risk analysis, determining critical limits, preparing monitoring system monitoring procedures, and finally preparing corrective actions to avoid deviations from critical limits. Based on the analysis of existing conditions at the BDW in Cirebon City, there are advantages and disadvantages on its own in the production process. For example, the poor performance of some treatment units and the need for control can be caused by replacing treatment units that exceed usage limits and irregular replacement schedules that can affect the water quality of these products. The HACCP method is needed in planning quality control to evaluate the performance of the BDW production processing unit, and determine the quality control of bottled drinking water products to minimize negative impacts for customers who consume them.
Research on envelope design of ultra low energy consumption passive building in severe cold area
Authors: Sun Ruiheng
Published: August 2021

At present, the common solid clay brick structure is widely used in residential building walls, which leads to higher indoor humidity, serious energy loss, waste of economy, environmental pollution and lower people’s comfort. The passive technology of ultra-low energy consumption can improve the insulation performance of the enclosure, reduce the energy consumption of heating and improve the comfort of the owner, and finally achieve the goal of energy saving of low energy consumption buildings in the cold area.
Taking basalt as an example to discuss the application and development of green building materials
Authors: Wang Sixian , Liu Jingjing , Lu Qi
Published: August 2021

The development of green building materials has great significance to our country. In the case of saving materials and money, it can also play the role of environmental protection, which has far-reaching significance for ecological development and sustainable use. The development of green materials in China is also developing rapidity, the present situation and development prospect of green materials in China are studied. This paper starts with continuous basalt. Discusses the green environmental protection building materials present application and the development. In this paper, I will take the basalt fiber seal test of No.03 provincial road in Zhejiang Province as an example to discuss the current innovative technology and application of continuous basalt in China.
Study on the influencing factors of Heat and Humidity and Vocal Coupling Adsorption Characteristics of Runner
Authors: Hao Hong , Li Siyu
Published: August 2021

In order to realize the purpose of indoor air purification and dehumidification at the same time, the mathematical model of heat and humidity and VOC coupling adsorption was established. The coupled adsorption characteristics of heat and humidity and VOC and the influence law of each factor were simulated by using VB program. The results show that the higher the inlet humidity is, the better the water desorption is, but not the adsorption and desorption of toluene. And the higher the inlet temperature of the treated air is, the more unfavorable the adsorption and regeneration of moisture and VOC is. Different toluene concentration in the inlet of air affected mainly its own adsorption and desorption, but had little effect on the adsorption and desorption of water. The increase of humidity in the inlet of regenerated air is not conducive to the desorption of water, but can promote the adsorption and desorption of toluene. The increase of inlet temperature of regenerated air can promote the adsorption and desorption of water and VOC. The coupling of heat and moisture and VOC on the runner can be adsorbed and purified at the same time.
Analysis on Green Building Design in China
Authors: Zhou Junhua , Ye Yingjuan
Published: August 2021

With the acceleration of urbanization in China, urban development is facing a huge ecological environment crisis, so it is urgent to promote the construction of green buildings. This paper first introduces the concept and standard of green building, then summarizes the main characteristics of green building, and finally puts forward the main points of green building design, hoping to provide a useful reference for the future green building design in China.
Crack identification with combined numerical simulation-intelligent optimization algorithms: a brief summary
Authors: Mao X.M. , Zhang H.H. , Han S.Y. , Ji X.L.
Published: August 2021

Crack identification in structures is a typical inverse analysis problem, which is very crucial for the reliability evaluation of various structures. In recent years, the rapid development of numerical technologies and artificial intelligence algorithms has provided a new way for crack detection. Numerical methods are used as the forward analysis tools to solve crack problems, while intelligent optimization approaches are applied to identify crack geometries based on the data collected by forward modeling. In this paper, the research status of crack identification, with the combined typical computational tools and well-known intelligent optimization schemes, is briefly summarized.
An Automatic Finite Element Analysis Post-Processor to Detect Regional Overall-time Extreme Condition of Dams
Authors: Jiang Rongqing , Zuo Zheng , Hu Yu , Wang Yajun , Liu Chunfeng , Zhang Liyuan
Published: August 2021

Post-processing is a key task in finite element analysis (FEA), particularly when dam engineering problem is analyzed, whose model is always multi-physics coupled, multi-incremental and element-altering. Commercial FEA software packages can provide powerful solvers, but the performance of their post-processing module is always function-limited and inefficient for engineers. This paper introduces design and implementation of an automatic FEA post-processor for dam engineering, and focuses on how to detect the overall-time extreme physics status of different regions of the dam. Python-based modules are developed in Tecplot to speed up and ease the procedure. The post-processor is tested in a case of dam construction analysis.
A Comparative Study on the Renewal Practice Modes of Historic Buildings in China and Japan—Taking Tianjin, Kobe, and Maizuru as examples
Authors: Ji Wei , Li Jianghong
Published: August 2021

One of the finest examples of preserving and renewing modern historical buildings in Japan is Ijinkan in Maizuru and Kobe, which are characterized by a high degree of openness, extensive public participation, and multiple business formats. Among them, the main form of public participation-clubs, is of great referential significance. As the modern northern economic center, Tianjin is home to thousands of historical buildings in its districts, which has become an important resource for urban tourism. After years of practice, although the effect is obvious, there are still many contradictions. In this regard, this paper analyzed the renewal models of historical building in two cities of Kobe and Maizuru in Japan, investigated and sorted out the current situation and renewal practice models of historical buildings in Tianjin, proposed several strategies suitable for the renewal of historic buildings in Tianjin, according to the comparative study of the renewal models of historical buildings in Tianjin and the two cities of Japan.
A method of calculating the spatial difference of human settlements in urban blocks based on floor area ratio
Authors: Jin Jianglei , Yan Haowen , Bie Qiang , Wang Guigang , Su Gazangjia
Published: August 2021

Based on the method of the Jenks natural break point, this paper constructs the floor area ratio level of urban habitat environmental quality, and proposes a method of analyzing spatial difference characteristics of the human living environment in urban neighborhoods using the Theil-index model and spatial difference measurement index. The proposed method can be used not only to characterize the spatial difference measurement value of urban neighborhoods, but also to calculate the inner spatial difference in city blocks. The effectiveness of the method is verified by the remote sensing image of the case point and the actual data.
Mechanical Mechanism Analysis of the Diseases of the Circular Rubber Bearing of the Bridge
Authors: Fan Sun , Xiaoguang Wu , Miaomiao Fang , Chi Wei , Jiaxin Liu
Published: August 2021

Rubber is a super-elastic material. Super-elasticity can be used to analyze rubber-like materials. This material can withstand large strains and large displacements, but has minimal volume change (incompressible), and has two characteristics: material nonlinearity and geometric nonlinearity. In the research process, the positive pressure, shear force and void of the circular rubber bearing were analyzed. For the circular bearing, it can be found through research that the tensile stress of the rubber layer of the rubber bearing increases rapidly with the increase of the vacant area of the bearing, and the slope of the curve is also increasing. The maximum stress of the rubber layer generally appears between the upper first layer of steel plate and the second layer of steel plate. When the void area reaches 30%, the tensile stress of the rubber layer between the first layer of steel plate and the second layer of steel plate reaches 32.8MPa, which is greater than the specified 17MPa, which causes the cracking and deterioration of the inner rubber layer of the bearing, and finally leads to the rubber support. Because of the collapse of the seat, the vacancy of the seat must be paid attention to in the design and construction process.
A study of urban stormwater runoff and water quality control based on system coupling simulations
Authors: Wu Wei , Ren Lei , Zhu Laifu
Published: August 2021

This study constructed a coupling model of an urban drainage (rainwater) flooding prevention system. Multifactor measures such as the internal source control, drainage pipe network, flooding prevention, and drainage of the system are coupled, the entire process from rainfall to urban rainwater drainage is simulated, and the control and improvement effects of low-impact development (LID) measures on urban stormwater runoff and water quality under different rainfall conditions are discussed. The results showed the following: (1) The constructed coupling model of the urban drainage (rainwater) flooding prevention system has good applicability and can accurately simulate the process and characteristics of urban stormwater runoff and water quality. (2) After LID measures are added, the runoff process is delayed, and the duration of runoff increases. The peak outlet flow of the study area under rainfall with a return period of 2, 3, 10, and 20 years decreases by 66.5%, 57.2%, 51.0%, and 48.2%, respectively. The peak pollutant concentrations decrease, the peaks are delayed, and the minimum removal rate of pollutants under rainfall with a return period of 1, 3, and 5 years is 51.1%, 49.7%, and 37.6%, respectively. (3) The LID measures play a role in improving the runoff flooding in the study area.
Discussion on the implementation of national water-saving actions in Changxing
Authors: Hao Qian , Ling Pengchang , Jiang Zhuming , Peng Zhangzu
Published: August 2021

Against the background of deepening Implementing the National Water-saving Action, Changxing adapts to local conditions by strengthening the dual control system of total water resources and consumption intensity. Changxing creating three major water-saving local characteristics such as building contract water-saving management system; promoting efficient and water-saving agriculture; promoting reuse of sewage water. Through these efforts, an upgraded version of water-saving in the new era will be built, comprehensively improve the level of water-saving in the whole society, also promote high-quality and green development of the economy and society.
Investigation and analysis of Super Typhoon Lekima storm flood in Yuhuan
Authors: Wen-jia Tang , Ze-qi Xu
Published: August 2021

Typhoon disasters occur frequently in coastal areas of China, and heavy rainfall induced by typhoon often leads to flash floods, landslides, debris flow and other disasters in some areas. Based on the investigation of the disaster situation of Yuhuan city during Super Typhoon Lekima, through a large number of investigations, the causes of major disasters in Yuhuan city caused by Super Typhoon Lekima are found, and the shortcomings of flood control and drainage system in Yuhuan city are analyzed Some suggestions are put forward to supplement the weak points and strengthen the supervision, which can also be used as a reference for disaster prevention and mitigation in other coastal areas with frequent typhoons.
Effects of Landscape Patterns on Runoff and Sediment in Danjiang River Basin
Authors: Guo Yiwei , Ding Wenfeng , Xu Wentao , Shao Yiwen , Meng Xi
Published: August 2021

The Danjiang River being the main tributary of the Hanjiang river, is the main water source of the south-to-north water diversion project in China, which is benefit from the protection of ecological environment. As the main reasons for ecological degradation, the land use changing and severe soil erosion attacted considerable attention in recent years. Based on the land use data and measured runoff and sediment data, the landscape pattern index analysis method and statistical analysis method were employed to explore the relationship between landscape pattern indexes and runoff and sediment in Danjiang River Basin (DRB). The results show that the runoff and sediment of the river present a downward trend from 1985 to 2018. The forestland was the dominant type of land use, and the growth rate of grassland was the highest. Results also show that the patch density (PD), the interspersion and juxtaposition (IJI), the edge density (ED), CONTAG, DIVISION and the largest patches index (LPI) have the same trend, indicating that the fragmentation degree of landscape, the connectivity between landscapes, and the richness of landscape increased. In addition, the shannon’s diversity index (SHDI) and IJI were positively associated with the runoff at landscape level, number of patches (NP), PD, ED, and CONTAG were negatively associated with sediment, and CONTAG was positively correlated with sediment. At class level, the NP, PD, LSI, and IJI of forestland, the NP, PD, and DIVISION of cropland, the LPI of grassland, and the NP, PD, and LSI of construction land were negatively correlation with runoff. The LSI and ED of grassland and the LPI of construction land were positively correlation with runoff. And the LSI, IJI, and ED of forestland and the LSI, IJI, and ED were negatively correlation with sediment.
Study on effect of different reservoir water diversion modes on river water quality improvement
Authors: Dong F , Huang A , Peng W , Liu X
Published: August 2021

Urban river water pollution is a serious environmental issue and tends to become worse. One of the key measures to improve urban river water quality is to divert water from upstream reservoir to downstream river course to flush pollutant. In this paper, a one-dimensional hydrodynamic and water quality model of Hun River network was developed based on HEC-RAS model. Different reservoir water diversion modes for sewage discharge were simulated and their effect on the water quality improvement of downstream river course was analysed. The results show that under different diversion flow rates, the larger the diversion flow rate, the better the effect on water quality improvement, and that when total water diversion volume is fixed, the effect of long-term diversion with a low flow rate is better than that of short-term diversion with a high flow rate on downstream water quality improvement. The research results can provide scientific support for optimization of the operation of water diversion from reservoir for sewage discharge.
Analysis of Economic Benefits of Reclaimed Water Industry Utilization: A Case Study in Tongxiong
Authors: Chen Yan , Gao Shang , Zhenhua Peng
Published: August 2021

Taking the Tongxiang Urban Sewage Treatment Plant Integration Project (Phase 1) as an example, this paper designs three reclaimed water allocation solutions after investigating the water cost, water quality requirement and reclaimed water using willingness of potential reclaimed water users in the surrounding area. The economic cost-benefit calculations for all three options show that under the circumstance that the existing water policy and charging standards remain unchanged, the large-scale use of reclaimed water in industrial production will increase the water intaking cost of industrial water users by 50%∼70%. In order to enhance the enthusiasm of water users for the use of reclaimed water, it is recommended that the government and enterprises could allocate the cost of using reclaimed water reasonably, and the government could provide economic subsidies and preferential policies.
The changeable degree assessment of designed flood protection condition for designed unit of inter-basin water transfer project based on the entropy weight method and fuzzy comprehensive evaluation model
Authors: Minglei Ren , Yingfei Liu , Xiaodi Fu , Liuqian Ding , Gang Wang , Guangyuan Kan , Liping Zhao , YaFeng Zhu
Published: August 2021

Since the 19th National Congress of the Communist Party of China, the high-quality development of China’s economy has put forward higher requirements for scientific and technological support of water safety guarantee. The flood control conditions of the design unit of water transfer project have changed to a certain extent compared with the initial design stage, especially the underlying surface of rivers and engineering conditions in the northern region have changed greatly, which has seriously affected the conveyance safety of water transfer project and the supply guarantee of water receiving area. Therefore, it is necessary to evaluate the change degree of flood control conditions in the design unit of water transfer project, and point out the weak links of flood control, so as to guide the flood control safety construction of the left bank area. In this paper, from the aspects of the change of underlying surface conditions, the actual flood discharge conditions of upstream and downstream, and the actual discharge capacity of buildings, the change of actual flood discharge conditions of water transfer project design unit compared with the original flood control design conditions is comprehensively considered. According to the principle of relatively independent, quantifiable and easy to obtain between indexes, the evaluation index system of flood control design condition change is established, On the basis of determining the classification standard for the quantitative and qualitative indexes, the entropy weight and fuzzy mathematics comprehensive evaluation model are used to evaluate the change degree of the current flood discharge conditions and the original flood control design conditions of each design unit of the water transfer project. For the units with large changes in flood control design conditions in the evaluation results, corresponding measures to eliminate risk factors and risk control will be taken. Finally, taking the flood control risk evaluation of a management office in a large-scale water transfer project as an example, this paper evaluates the change degree of the current flood discharge conditions and the original flood control design conditions of 16 three-level units in the management office. The results show that there are 6 three-level units with changes in the original flood control design conditions, including 4 great changes and 2 significant changes. The application example shows that the entropy weight and fuzzy mathematics comprehensive evaluation model can accurately reflect the change degree of each three-level design unit in the management office, and play a certain technical support role in the study of the performance change law in the life cycle of water transfer project and the theory of water transfer project and service environment evaluation.

PACS: J0101
Green preparation and application of carbon quantum dots
Authors: Kaiming Kang , Baoyou Liu , Ju Han , Hongwei Ren , Limin Wang , Gang Yue
Published: August 2021

Carbon quantum dots (CQDs) are a new type of carbon-based zero-dimensional materials. Carbon quantum dots have many advantages such as excellent optical properties, good water solubility, low toxicity, environmental friendliness, wide source of raw materials, low cost, and good biocompatibility. Since the first discovery of carbon quantum dots, a variety of synthetic methods have been developed. This article lists the preparation methods and applications of carbon quantum dots, and discovers a new method for ionic liquids as modifiers, which will play an important role in the future research of carbon quantum dots.
Water Level Fluctuation Patterns in Restricted Intermediate Navigable Channels with Different Lock Emptying Processes
Authors: Dian-Guang MA , Lei Wang , Jun-yi Yang
Published: August 2021

The fluctuation of water level caused by the unsteady flow of lock discharge, where the key problem is the relationships between the hydraulic factors in the restricted middle navigable channel and the transformation of unsteady flow and the corresponding scales are investigated. Based on the restricted middle navigable channel of the Baise navigation project, the relationship between the unsteady flow discharge process of lock and the water surface fluctuation process in the restricted middle channel is studied through systematic experiments, and the conclusion is drawn as follows. The main reason caused the flow fluctuation is attributed to the insufficient energy dissipation and rapid increase of discharge during the lock discharge process. And the sectional discharge method which reduces the peak value of the discharge process can reduce the fluctuation of upstream and downstream water level effectively. By reducing the peak value of the time-discharge curve, the energy dissipation along with restricted middle navigable channel increases, with the fluctuation amplitude of upstream and downstream flow reduces, and the attenuation rate of the energy dissipation increases. Furthermore, a fixed phase lag is formed between the reflection wave formed by the downstream ship lift gate and the discharge wave formed by the upstream ship lock discharge, which has little relationship with the discharge curve.
An Empirical Analysis of China’s Energy Security Based on TOPSIS Model
Authors: Yan Shigang , Li Lexuan
Published: August 2021

Within the last twenty years, China has become a net importer of coal, oil and natural gas. China’s energy security becomes increasingly important. The paper analysed the energy production and consumption of China, and described the change of China’s energy security strategy. This research constructed an evaluation system from five dimensions of reserve security, production and transmission security, trade security, consumption security and sustainability. By adopting the grey related TOPSIS model, the research examined the energy security level of China from 2005 and 2019. The paper proposed countermeasures and suggestions to improve energy security level of China.
Application of Data Visualization in Data Analysis of Inclinometer Hole
Authors: Jie Yang , Xiaoyan Xu , Pengli Zhang , Jiaming Wang
Published: August 2021

The deformation measurement data of the bank slope survey hole is one of the typical physical quantities characterizing the safety state of the bank slope. The measurement results of the inclinometer hole are two-way horizontal displacements perpendicular to each other at different depths, and the traditional two-dimensional analysis diagram can’t show the vectorization of the horizontal displacement of the inclinometer hole well, neither highlighting the change of displacement with time nor showing the direction of displacement. In this paper, the measuring principle of inclinometer hole is introduced firstly, and then the monitoring data of several inclinometer holes on the back bank slope of an arch dam is taken as an example to visualize, and the advantages and disadvantages of traditional two-dimensional analysis chart, three-dimensional process analysis chart and spatial displacement analysis chart in visualizing the measuring results of inclinometer hole are compared and analysed. It has certain reference significance for the analysis of the monitoring results of inclinometer holes.
Common problem thinking and technical innovation elaboration Based on the status quo of urban sewage treatment in China
Authors: Liu Zuojun , Qiao Yang , Li Zhexian , Gong Yi , Wang Xiangkai
Published: August 2021

China’s urban sewage treatment developed rapidly, but there are many common problems. In the form of online questionnaire, 1100 people were randomly selected as sample data for description analysis. Based on quantitative research methods on China’s drainage and sewage treatment from 1978 to 2019 and the literature research and information integration of related books and materials, this article discusses the commonalities in urban sewage discharge standards, sewage treatment, and effective sludge treatment and recycling. Descriptive research is carried out on the problem, and due to the current main contradiction in sewage treatment, it is converted to the effective removal of nitrogen and phosphorus organic matter. Then, anaerobic ammonia oxidation is introduced and its scientific and technological prospects are prospected, hoping to provide supportive reference for related research researchers.
Study on Remote Sensing Retrieval of Soil Moisture in Arid Desert Area Based on FTVDI
Authors: Lu Zhao , Wang Daqing , Ding Zhibin , Shi Yue , Ning Hao , Zhao Jiazheng , Zhao Hongfei , Cui Huiru , Xu Haoli , Cheng Zijian , Zhao Xiaoning
Published: August 2021

In this study, the desert oasis area of Minqin, Gansu Province was taken as the study area, and China Gaofen-6(GF-6) satellite and China-Brazil Earth Resource Resources Satellite - 04 (CBERS-04) were invlked as remote sensing data sources. The soil moisture was retrieved by using Forward Temperature Vegetation Dryness Index (FPVDI), and the spatial distribution of soil moisture was analyzed. The result showed that FTVDI could be directly and accurately retrieve soil moisture.
Experimental research on river and lake silts adjusted by a low alkaline silt modifier using as planting soils for greening
Authors: Li Shimi , Chen Wenfeng , Xia Xinxing , Wang Longtao , Chen Feixiang
Published: August 2021

To solve the high pH problem of the filter and the dewatered silt cake during the treatment and disposal of the river and lake silt, a low alkaline silt modifier was employed in this research. To contrast the performance, PAC, PAM and together with the fly ash, conventional silt modifier, and the low alkaline silt modifier were added in the silt sample. The silt was dewatered using a pilot-scale plate and frame filter press. It is found that the filter and the dewatered silt cake with the low alkaline silt modifier were weakly alkaline, TN and TP are also lower than the other groups. The internal mechanism and feasibility of the dewatered silt cake were analyzed and demonstrated by micro-tests (e.g. XRD and SEM). The results indicated the steel slag, phosphogypsum and cement in the low alkaline silt modifier can provide mineral framework, increase the porosity of the silt cake and improve the dewatering performance of silt as the fly ash and the conventional modifier, while the steel slag, phosphogypsum in the low alkaline silt modifier could improve the distribution of phosphorus in the dewatered cake, promote the transformation of bioavailable phosphorus, and improve soil fertility.
Research Status on Dust Removal Technology for High Temperature Gas
Authors: Wang Wenjie , Cui Lin
Published: August 2021

High-temperature dust removal technology has a wide range of industrial application, and is an important research direction for the dust removal. The research status, characteristics and application range of several high-temperature dust removal technologies were summarized in this paper, such as high-temperature cyclone dust removal technology, high-temperature filter dust removal technology and high-temperature electrostatic dust removal technology. It is concluded that improving the fine particles collecting efficiency of cyclone dust collector may be an important research direction.
Typical application scenarios of energy internet platform serving rural revitalization
Authors: Anbang Xie , Peng Li , Yongle Zheng , Huixuan Li , Hongkai Zhang , Wenjing Zu
Published: August 2021

Energy is an important material and dynamic basis to promote the implementation of rural revitalization strategy. With the rapid development of informatization and digitalization, energy internet platform has become a powerful driving force for the construction of a new rural energy system. First of all, this paper analyzes the functional requirements of the rural energy internet platform from four aspects: planning and decision-making, agricultural production, clean heating and market prosperity. Secondly, according to the functional requirements of the platform, a functional framework of rural energy internet platform is established. Finally, four typical application scenarios of planning and decision-making, intelligent agriculture, intelligent heating and platform economy are established. It is of a certain significance for serving rural revitalization through energy methods.
New Principle of Pilot Protection Based on Kendall’s Rank Correlation Coefficient
Authors: Shuai Yang , Xiaopeng Li , Ziyuan Gong , Dongsheng Li , Xiaolei Cheng , Wenbin Cai
Published: August 2021

Affected by the control strategy after MMC failure, the fault current on the converter side of the AC line interconnected with the MMC is significantly different from the fault characteristics of the traditional power supply in amplitude and phase. The new fault current characteristics lead to the inapplicability of the traditional longitudinal current phase differential protection. In order to solve the problem of the applicability of relay protection, a new principle of longitudinal protection based on Kendall’s rank correlation coefficient is proposed. After the AC line fails, the Kendall grade correlation coefficient of the calculated current on both sides is calculated to distinguish the internal and external faults. Simulations are carried out on the RTDS platform, and the results show that the proposed protection principle can reliably distinguish between internal and external faults and has the ability to withstand transition resistance under various control reference values.
Analysis of Designing Green Architecture Based on Building Information Modeling (BIM) Technology
Authors: Long Rui , Li Yanling
Published: August 2021

Architecture industry is one of the most important energy consumers and environmental polluters. Ensuring the ecological stability and the environmental sustainability for humankind, developing green architecture is an urgent need. How to design green architecture properly is the key to constructing energy-saving and sustainable architecture. This paper analyzed the designing procedures of green architecture and the problems in the designing process, and explained how to use Building Information Modeling (BIM) technology to deal with the problems, providing references for designing green architecture.
Combination forecasting model of equipment and material prices for power grid production technological transformation projects based on unary linear regression and grey theory
Authors: Lin He , Gaosheng Rong , Ning Ma , Li Chen , Bo Huang , Xiaofan Guo
Published: August 2021

The purchase cost of equipment and materials occupies a large proportion in the cost of power grid production technological transformation projects, and has a greater impact on project cost control. Therefore, strengthening the management of equipment and material price forecasts and improving the scientificity and accuracy of forecasting methods are important for improving production technology. It is of great significance to improve the cost management of the whole process of the project and improve the lean management level of the investment of power grid enterprises. In this paper, combined with the current situation of equipment and material price forecasting for the production technological transformation projects of power grid enterprises, a combination forecasting model based on unary linear regression and gray theory is constructed, and the validity of the model is verified through empirical analysis.
Power Supply Safety Management of High-risk Customers of Regional Grid
Authors: Defeng Yang
Published: August 2021

Flourishing of domestic electric power industry contributes to the development of various industries and fields, particularly the promotion and popularization of intelligent distribution network, meeting people’s working and living power demand. However, the continuous improvement of the scale and quantity of electric power projects increases the overall difficulty of power supply and distribution management. To be specific, not only modern control technology needs to be applied and advanced power supply & consumption equipment needs to be used, but also scientific and rational power supply & distribution scheme needs to be formulated to ensure the operation reliability of distribution network. In view of this, the paper studies the safety management of power enterprises. First of all, it sets out the defining scope of high-risk customers with the high-risk customers of regional grid acting as the study object, and then, it points out the power supply & distribution safety management problem of high-risk customers, finally, it proposes safe power supply management measures and optimization suggestions from technology, equipment, personnel and management, hoping to provide the practitioners concerned with reference.