bluuebunny/crossref_metadata_2025 huggingface dataset:
Study of Supply Chain Coordination Considering the Participation of Upstream Members of the Supply Chain in Repurchase
Authors: Yan Nannan , Tang Zhengzheng
Published: January 2023

For the supply chain consisting of a single supplier and a single retailer, the contractual coordination strategy of introducing retailers and suppliers to participate in repurchase is introduced to break the traditional model of supply chain repurchase, and the contractual models of retailers participating in repurchase alone and retailers and suppliers participating in repurchase together are constructed for supply chain coordination. The comparison between the case of retailer participating in repurchase alone and the case of supplier and retailer participating in repurchase at the same time shows that both repurchase models have a coordination effect on the supply chain, it was also found that introducing retailers and suppliers to participate in repurchases at the same time has higher supply chain benefits than retailers participating in repurchases alone.
Analysis and Forecasting of California Housing
Authors: Chen Yucong
Published: January 2023

House prices have significant impact on people’s daily life, and it is essential for people to have fixed abode, to live, work and social prosperity and stability. Hence predicting House price is a meaningful and big challenge. To achieve this goal, we use California Census dataset in this project to how distinctive features (attributes) can make the house price higher or lower. The main idea of this project is to build a Regression Model that can learn from this data and make predictions of the price of a house in any block, given some useful features provided in the datasets. In the regression task, we applied cross-validation and K-Fold method on Ridege Model, Random Forest, Gradient Boosting models to select the optimal hyperparameters. Then we apply the best selected model on test set, the results show decent performance for Random Forest and Gradient Boosting. The Random Forest performs the best with MSE (Mean Squared Error) 0.290, while it takes training time 14.7 seconds. Although the Gradient Boosting takes the result of MSE is 0.295, it took a shorter training time (2.91s).
Research on the Management System and Operation Mechanism of Grass Roots Mass Sports in China
Authors: Wang Xiaotang
Published: January 2023

In the process of comprehensively promoting the reform of the market economy system, China's infrastructure is becoming more and more perfect, and the quality of life and living standard of the masses are getting higher and higher. While pursuing material satisfaction, the public is increasingly concerned about their spiritual and cultural enjoyment. Under such a realistic background, grassroots mass sports have developed very rapidly. In order to provide necessary support and help for mass sports, China has gradually increased its investment in and support for mass sports work, built a scientific and perfect sports management mechanism, and ensured that the system can achieve steady operation, focusing on the enthusiasm and physical fitness of grassroots sports. This article will combine theory with practice, understand the implementation path of different management systems, and analyze the specific mode of grass-roots mass sports management mechanism. In this way, we can better suit the remedy to the case, ensure that each grassroots mass sports management system can play its due role, meet the diversified and personalized physical exercise needs of grassroots people, and comprehensively improve the overall quality and participation initiative of the people.
Applications of phosphorescent organic light emitting diodes
Authors: Yao Bohong
Published: January 2023

Organic light-emitting diodes (OLED) materials have been widely applied in many fields, among which phosphorescent OLED materials have more and more attention due to their luminescence efficiency and performance. At present, the luminescence layer of many OLED devices adopts phosphorescent materials as the main body to achieve a better visual experience for users. The research and development of blue electrophosphorescent materials are not mature enough. The two big aspects including color purity and the service life are major problems, and many researchers are now working on research methods of conquering the blue phosphorescent OLED materials shortage. In this article, fluorescent and phosphorescent OLED materials have been mentioned. The applications and branches of phosphorescent OLED materials are described. The article also analyzes the shortcomings of phosphorescent OLED and explained the reasons, mainly thermal activation delay fluorescence (TADF). Its purpose is to reduce the expensiveness of phosphorescent OLED materials. Meanwhile, the luminescence efficiency of fluorescent materials can be greatly improved. Additionally, the basic principles of luminescent OLED materials and the applications of phosphorescent OLED materials are also illustrated, including the prospect of blue phosphorescent OLED materials.
Air Impurities Affecting the Melting of Icebergs and the Possibility of Airborne Microplastics Influence on Icebergs
Authors: Qin Shiji
Published: January 2023

The glaciers and icebergs are important not only for the hydrology but also the ecosystem of earth. The melting of glaciers will release the stored organic carbon and further accelerate the melting rate, thus affecting the global climate. Previous explorations have demonstrated that an important factor in the glacier retreat is human emissions. Carbon particles are major components, which could further be divided in to two categories by existing forms: light-absorbing aerosols (LAAs) and light-absorbing impurities (LAIs). Nowadays, microplastic particles (MP) have been discovered as a new form of pollutants in the environment. By comparing and analyzing the data of radiative forcing (RF) as well as optical characteristics, MPs have a great potential to accelerate the melting of glaciers and an impact on the ecosystem. Therefore, further research on the MPs are necessary to be completed.
Mechanism and application of the anti-bacterial nanomaterials
Authors: Yang Shen’ao
Published: January 2023

The abuse of antibiotics has brought a series of medical problems including the increase of bacterial drug-resistance. Given the current conditions researchers tend to develop a new field of medicines to gradually replace conventional anti-bacterial agents. Nanomaterials-based anti-bacterial agents have drawn tremendous interest because of a range of advantages over traditional anti-bacterial agents including higher efficiency, low provocation of drug-resistance, lower cost and other specific properties given by the nanoscale, making it a research topic in great demand. At present, numerous categories of anti-bacterial agents have been developed and completed with various properties, and along with the process many hypothesis and mechanisms have been suggested to serve as conferences to guide further research and creation. This research aims at summarizing mechanisms of current typical nanomaterials-based anti-bacterial agents including anti-bacterial peptide, carbon-based nanomaterials (CNMs) and metal nanomaterials while also providing related application fields in order to give a primary and wide acknowledge.
Chemical properties of biochars prepared from corn and wheat straw at different temperatures
Authors: Zhang Jianqiang , Kan Xurundong , Pu Jingwei , Li Ling , Zheng Tiaozhen
Published: January 2023

In this study, biochar produced by anaerobic combustion of wheat straw and corn straw in Henan Province at 300 ℃, 500 ℃ and 700 ℃ was used. The chemical properties of wheat biochar and corn biochar, such as pH and infrared spectra, were studied with the increase of temperature. The chemical properties of wheat and corn biochars were compared based on the related literatures.It was found that the pH of biochar from wheat straw and corn straw combustion increased with the increase of temperature. Through the analysis of infrared spectra, it was found that the pH change of the two biochars may be related to the content of functional groups in the biochars themselves. With the increase of temperature, the spectra showed that the functional groups of the two biochars, such as hydroxyl and carboxyl,The main reason is that the chemical bonds of the above functional groups are broken with the increase of temperature. Resulting in a decrease in the number of acidic functional groups and an increase in the alkalinity of the biochar.
Removal of CO2 from Flue Gas by Membrane Separation Technology
Authors: Zhao Zihan , Chen Shiying , Peng Qichen
Published: January 2023

As the main gas of the greenhouse effect, carbon dioxide (CO2) must be effectively captured and recycled, and the high separation efficiency and low cost of membrane separation make it stand out to remove CO2 among many gas separation methods. Considering the gas contained in the flue, a more efficient CO2 membrane separation method is proposed, that is, improving the separation coefficient by adopting a separation device coupled with multi-layer separation membrane and absorption membrane. If this method is used, the separation quality can be improved, the purity of CO2 will be close to 99%, and the cost for the developed separation technology can be greatly reduced. As a result, this research is devoted to describe a novel method of removing CO2 from the flue gas, which is by combining separation membrane and absorption membrane. The method can reduce the cost and external pollution, combined with various advantages, to improve the separation quality as far as possible.
Role of Biochar in Anaerobic Fermentation of Kitchen Waste
Authors: Li Qi
Published: January 2023

Food waste has high moisture content and organic matter content. If it is not treated in a timely manner, it will have a very terrible impact on people’s living environment and health, and it is simple to breed pathogenic microbes, bacteria and other chemicals that are hazardous to the human body. Anaerobic fermentation of kitchen waste can produce methane while processing kitchen waste, realizing resource utilization. However, in the process of anaerobic fermentation, there is poor system stability, low efficiency, and prone to acid inhibition. The development of an efficient treatment method has become a current research hotspot. Due to its physicochemical properties, biochar can effectively alleviate the phenomenon of acid inhibition and improve the efficiency of anaerobic fermentation. As a result, adding biochar to an anaerobic fermentation system has a positive effect on system operation. In this research, effects of biochar as an additive on anaerobic fermentation systems and their mechanisms were analyzed from three aspects, including anaerobic fermentation system stability, interspecific direct electron transfer (DIET) and microbial community. And prospected the aspects to be further studied in the application of biochar for the anaerobic fermentation of kitchen waste.
Synthesis and Application of Responsive Polymersomes
Authors: Cheng Jialu
Published: January 2023

Polymersomes as drug carriers make up for the shortcomings of traditional chemotherapeutic drugs, such as easy to synthesize, short circulation time, early release, and continuous cytotoxicity. Responsive polymersomes can alter their properties such as composition, size, shape, and surface functional groups according to different stimuli, enabling the delivery of cargo at hydrophilic, hydrophobic or other specific sites, and the control of drug release. This article provides an overview of what is known about different types of responsive polymeric vesicles and describes the main design choices. In this review, the mechanism and advantages of four responsive polymersomes are discussed. Furthermore, the article focuses on the synthesis methods and applications of representative examples of each stimulus. In particular, the latest progress of four type of responsive polymersomes are emphasized. Finally, based on the great progress in the current research on responsive polymersomes, this paper discusses the potential for future development and selection of more biosafety responsive polymersomes directions.
Application of Degradable Polymers for the Treatment of Wounds and Tumors
Authors: Jia Zehao
Published: January 2023

Degradable polymers are of great significance in bacteriostatic and cancer treatment. Biodegradable biomaterials have the characteristics of high safety, good environmental protection and good therapeutic effect. This article mainly introduces the application of the polymerization strategy in the biomedical field. In the direction of bacteriostasis, degradable polymers provide a series of new and effective ideas for researchers. For example, the biodegradable antimicrobial gene vector based on tobramycin, a kind of antibiotic, coupled with polyaspartic acid (TPT) effectively realized the antimicrobial treatment and restoration of skin damage. A multifunctional injectable hydrogel dressing that integrates electrical conductivity, good antioxidant capacity and antibacterial properties has been designed to treat skin injuries. Supramolecular polymers with strong antibacterial effect and controllable degradability were used to prepare biodegradable antibiotics to enhance the antibacterial effect of antibiotics against drug-resistant bacteria. In addition, degradable polymers also show great potential in the treatment of cancer. For example, scientists have discovered that drug release can be triggered from tumor-targeted polymer nanoparticles through the process of polymer degradation mediated by reactive oxygen species. The development of a rapidly degraded chitosan based multilayer controlled release membrane provides a theoretical basis for the preparation of customized multilayer membranes for drug administration. The adoption of the concept of the macromolecular engineering, which mixes drugs with polymers, opens up a new way to design polymer biodegradable drug delivery systems. Thus, the potential of biodegradable polymers in various interdisciplinary fields has been highly valued, and they will be more widely used in production and life in the future.
Flow Batteries for Future Energy Storage: Advantages and Future Technology Advancements
Authors: Yang Wenhao
Published: January 2023

For sustainable development, finding a clean energy storage technology for the future is necessary. The main technology for promoting the evolution of the energy structure and popularizing the use of renewable energy sources, including wind and solar energy, is high-power and high-capacity energy storage. Flow batteries is one of the most promising technologies in the industrial energy storage technology, owing to their unique features such as long cycling life, reliable design, high safety, and relative mature development. Nevertheless, the high cost and low energy density problems restrict its further development. This paper first introduces the working principles and characteristics of flow batteries that have been industrialized. Secondly, the advantages and the research status of the new flow battery (FB) systems are summarized. Finally, the main challenges that hinders the large-scale application of the flow batteries are emphatically analyzed, and the suggestions regarding the further technologies required for the development of advanced flow batteries are put forward, which points out the direction for the progress of new high-performance FB systems.
Study of Preparation, Properties and Applications of Graphene
Authors: Huang Yonglun
Published: January 2023

As a two-dimensional nano-material with outstanding characteristics, graphene is mainly composed of carbon atoms organized in a honeycomb configuration. Numerous attempts have been made to produce substantial amounts of graphene using various chemical processes since the first isolation of graphene in 2004 by mechanical exfoliation from graphite. There is still a lot of potential applications remained undiscovered, particularly in strengthen heat resistance and toughness of the material. This paper summarized the preparation process of graphene, micro-morphology and macro performance of graphene in recent years. The mechanical properties, ways of toughening composites and mechanism of graphene on ultra-high temperature ceramic matrix were studied. In addition, the influence on thermal properties via different synthesis process, thermal shock resistance and oxidation resistance of graphene were explored.
Application of Surface-Enhanced Raman Spectroscopy in Food Safety
Authors: Huang Yaxuan
Published: January 2023

Food safety is the primary concern because people are the foundation of a nation's strength and food is their most basic necessity. The value of food security as a global issue today captures people's attention. Food testing technologies are therefore essential for guaranteeing food safety. Traditional procedures for identifying biological, chemical, and physical pollutants in food are time-consuming, costly, and labor-intensive, and frequently cause food samples to change. These restrictions have made it necessary for the food sector to create more useful food detection systems that can accurately identify all three main categories of contaminants. Raman spectroscopy can be used extensively in evaluating food safety since it is non-destructive, easy to use, sensitive, and efficient. The advancement of Raman spectroscopy in recent years has substantially boosted its use relating to food security, enhancing the identification of contaminants in food product as well. This article describes surface-enhanced Raman spectroscopy (SERS), Raman spectroscopy, and the fundamental imaging principles. It also discusses recent developments in the identification of different material in foods. Finally, a discussion of the limitations and further potential of approaches concerning Raman spectroscopy in food security monitoring follows.
New Technologies in Polymer Synthesis and Applications of Polymers
Authors: Zhu Yuhan
Published: January 2023

Polymers as a kind of significant materials are widely used in human life including eat, wear, live and work. Because products made from polymers are increasingly appearing in people's lives, the technology and applications associated with polymers are also advancing. This article will review the new polymer synthesis technologies of recent years and summarize the applications of polymers in biology, medicine and electricity.
Preface: 2022 International Conference on Architecture, Geotechnical Engineering and Construction Technology (AGECT 2022)
Authors: Giles Burgess , Zhang Wen
Published: January 2023

Due to the outbreak of the global pandemic, 2022 International Conference on Building, Geotechnical and Building Technology (AGECT 2022) was held virtually online from December 10-11, 2022 in Suzhou, China. The conference brings together innovative scholars and industry experts in the fields of structural, civil engineering, architecture, geotechnical engineering and construction technology into a common forum.

The main objective of AGECT 2022 was to promote research and development activities in structural and civil engineering research. Another goal is to promote the exchange of scientific information between researchers, engineers, PHDs, students and practitioners working in the conference and workshop. The conference will be held annually, making it an ideal platform for sharing ideas and experiences in structural and civil engineering research and related fields.

During the conference, the conference model was divided into three sessions, including oral presentations, keynote speeches, and online Q&A discussion. In the first part, some scholars, whose submissions were selected as the excellent papers, were given about 7-10 minutes to perform their oral presentations one by one. Then in the second part, keynote speakers were each allocated 30-40 minutes to hold their speeches.

We would like to acknowledge all of those who supported AGECT 2022. The help and contribution of each individual and institution was instrumental in the success of the conference. In particular, we would like to thank the organizing committee for its valuable inputs in shaping the conference program and reviewing the submitted papers.

We are sure that the proceedings will serve as an important research source of references and knowledge, which will lead to not only scientific and engineering findings but also new products and technologies.

With best regards,

Conference Organizing Chair

Suzhou, China
The Brutalist Architecture of Dune: Rule-breaking Designs for the Future
Authors: Li Jiajing
Published: January 2023

The grandeur and rawness in architecture can be traced to the brutalism style raised up in soviet kingdom before ward war II. It seems that the post-war coldness in such design’s associates with the setting of the Dune, leading to the pivotal climax: the Battle of Arrakeen. But why does Denis Villeneuve and Patrice Vermette, the director of production designer of Dune, choose to embrace brutalist architecture in the film? This paper will examine the legacy of brutalist architecture and its relationship to modern film aesthetics. This is because this paper wants to put off implication introduced by the Dune with its incorporation of such architecture, that is to fantasize a different style of modern architecture that adheres to the doctrine of the soviet architects from the past. in other words, to contemplate the potential of our society if the functionalist element didn't suppress the innovation of the soviet architects; if we are able to keep utilizing and developing the style of brutalism until now. Simultaneous, this paper intends to help recognize the limitations on today's architects and the potential for societal transformation that might result from giving them more freedom to create. Breaking convention is necessary if we are to go forward, even if the general public does not always find it appealing. Fortunately, many architects are starting to put this concept into practice and are reclaiming their creative independence in the field of architecture.
Research Methods for Reliability Analysis of Engineering Structures Based on Statistical Theory
Authors: Wang Lining
Published: January 2023

With the increasing need for construction engineering projects, the reliability problem of engineering structures has been the focus of public concern.Currently, there is a lack of a systematic summary of structural reliability theory. Therefore, this paper attempts to summarize some basic principles of structural reliability theory. This paper discusses various factors affecting reliability analysis and three typical analysis methods. It is pointed out that multiple factors affecting reliability analysis, such as the applying loads and resistance parameters such as material properties and dimension parameters, can be regarded as random variables and obey specific statistical distribution. First Order Reliability Method presents the most excellent convenience in calculating failure probability, especially for the structure with a relatively small, and the accuracy of this method is acceptable when the nonlinear degree of structural performance function is not significant.The Second Order Reliability Method could provide a relatively accurate solution with a more complicated calculation process. Monte Carlo Simulation is general enough to be applied to all the cases despite the considerable number of simulations resulting from a minuscule failure probability. Researchers are expected to implement improvement measures to simplify analysis methods by combining them with mathematics and computer science. The results of this paper can provide a theoretical reference for the researchers and designers of structural reliability theory.
Research on Properties of Ecobricks and its Possible Applications
Authors: Li Yueyang
Published: January 2023

Ecobricks are bricks made from garbage or plastic that hasn't been recycled. Traditional brick wall tiles are constructed of bricks and mortar, which are not very eco-friendly and have a significant potential for global warming. Therefore, this paper suggests the utilization of ecobricks instead. Plastic bottle bricks, the most popular kind of ecobricks, are created by putting inorganic fillers like sand into plastic polyethylene terephthalate (PET) bottles. Besides the environmental issue, ecobricks also have the advantage of being affordable. The walls and foundations formed of plastic bottle bricks are able to stand rigidly on their own thanks to the self-standing qualities of plastic bottles, thus it is less expensive. As a result, plastic waste can be collected and used in some underdeveloped countries where insufficient waste management and inadequate funding are major concerns for the development of environmentally friendly initiatives. Refugee camps or low-income neighborhoods are examples of potential locations. This paper makes a suggestion on the potential application of plastic bottle bricks for use in new construction shelters of a new displacement camp that has been suggested for the Bangladeshi island of Bhasan Char.
Study on the History and Present Situation of Cable-stayed Bridge Structures in China
Authors: Yang Zige
Published: January 2023

With the improvement of force mode, the development of material characteristics and technologies, the Cable-stayed Bridge structures are used more and more widely. In 1975, Yunyang Bridge, the first experimental Cable-stayed Bridge of China, was completed. In the following decades, China has greatly increased the span of bridges and the height of towers. During construction, the materials used to build bridge structures are more diverse and safer. In 2017, the Hong Kong-Zhuhai-Macao Bridge, representing the most advanced bridge-building technology in China at the time, was born. In this paper, the history of ancient Cable-stayed Bridges is firstly introduced. Then, several Cable-stayed Bridges which have great influence are researched, respectively. Finally, this paper compares Yunyang Bridge and Hong Kong-Zhuhai-Macao Bridge in-depth from three aspects: comparison of the construction scales, comparison of the construction materials and comparison of the cable technologies. The results show the progress of bridge industry in the past 42 years of China.
Characteristics of Mixed Reality Technology and Its Application in Engineering Fields
Authors: Liu Jiaqi
Published: January 2023

Mixed reality, or MR, is a technology that incorporates information from real scenes in a virtual environment, allowing the actual and virtual worlds to be linked to enhance the realism of the user experience. With the rapid development of the 5G network and communication technology, MR technology has been used on a larger scale in every industry in the future. This study analyzes its use in engineering and non-engineering domains, discussing its benefits and drawbacks. MR can be used for data sharing and efficient communication, assisting workers in understanding and guiding their operation, and facilitating project management. However, its disadvantages include unreal images, delayed tracking, restricted condition for the environment, unsatisfactory user experience, and high costs. In non-engineering fields, MR is mainly applied to simulation, real-time interaction and so on in the military, medical science and education fields. The application of MR technology in engineering fields is mainly about construction, disaster management, and prevention. It enhances the work efficiency for construction by allowing 3D visualization of concealed or complex structure, and timely annotation. It eliminates risks for disaster management and prevention by conducting simulated drills, and optimizing escape routines.
The difference of the Biophilic Design between Canada and China
Authors: Wang Jinxiang
Published: January 2023

With the continuous increase of urban density, people gradually find that the city that is isolated from nature is contrary to the instinct of human desire for nature. The pro-nature design born to alleviate this dilemma has naturally become the focus of attention and the direction of future urban development. trend. The purpose of this paper is to find out the differences of the same concept in different environments and the reasons for the differences by studying and comparing the biophilic design cases and environmental differences between Canada and China. By listing and comparing the different human and natural environments of two countries, as well as the comparison of two cases, the article studies the different influences of people's living environment on the new biological design. Finally, it is concluded that the different levels of people's pressure and desire for nature will have an impact on biophilic design, and the degree of pressure and desire for nature is proportional to the number of biophilic elements in the design. This paper expects that biophilic design can focus on the sustainability and practicality of buildings, and at the same time, this paper provides information for future biophilic development and a theoretical basis for design.
Research on the design of prefabricated buildings
Authors: Lan Haotian
Published: January 2023

In recent years, the traditional cast-in-situ construction is faced with many problems, such as construction quality relying too much on the level of construction personnel, design can sometimes increase construction difficulty, lack of construction of fine management, more and more high cost, serious material waste and so on a series of problems, this paper mainly discussed the prefabricated modular architecture compared to traditional cast-in-situ construction, Analyzed it in architectural design, construction, and some of the advantages on the building structure, this paper introduces the design of prefabricated modular building personalized, standardization, construction quality and construction of low cost, high material utilization, high construction efficiency, less waste and less pollution, and lists the specific application of prefabricated modular buildings, such as: Huoshen Mountain Hospital, Beijing Yizhuang blue Collar Apartment, Croatia Clark Stadium and Arab Jeddah port breakwater lights. This paper expects that the development of prefabricated modular building will be better and better. With the breakthrough of technology, the shortcomings of the construction industry will be completely changed, and the prefabricated modular building can break the shackles, the design mode and content can be more mature, and the degree of mechanization, information and individuation can be higher.
The impact of over-urbanization on human and the benign interference on the architectural level
Authors: Jian Minghao
Published: January 2023

Development is a long-term process and the history of human progress is negligible compared to our mother nature. Now, human beings are at a stage of rapid growth, both civilly and economically. Negative impact is posed to society due to the rapid advance and this is also the major issue in the essay wanted to study on. Current circumstances caused by the different degree of urbanization are listed and some way of intervention using an architectural design that intends to reduce the effect of over-urbanization is provided in the article. Though research, the article has figured out the definitions of urbanization, the increasing amount of population transforming into the urban area accompanied by the growth in the economic level, and various influence caused during the process including environmental pollution, health issue and division of culture. The term over-urbanization is given to those severe circumstances, for instance, irreversible soil erosion. In this essay, possible interventions in architectural level, mainly biophilia, prefabricated buildings and old house renovation, are presented. The aim of those methods is to alleviate the influence of over-urbanization as much as the society can using existing materials and spaces with relatively low external cost. The essay wanted to present the current state of urbanization in the world and point out the severity of under-stated this procedure, while intended to found out effective ways using architecture design to modify over-urbanization.
Research on BIM based bridge Inspection and Safety Evaluation System
Authors: Li Xinran , Li Yingxue , Peng Chuang , Wang Shiyu
Published: January 2023

The appearance of BIM technology brings a new revolution to the bridge detection technology. This paper mainly introduces the content and advantages of the bridge detection and safety evaluation system based on BIM technology.
A brief review of 3D printed concrete
Authors: Cao Chenyu , Sun Dongsheng , Xian Zhijun , Zhang Hengyu
Published: January 2023

From the outline molding process invented by Professor Khosnevis of the University of Southern California in 2004, which is recognized as the earliest architectural 3D printing technology in the industry, to the concrete printer of COBOD, a 3D printing and construction company in Denmark, which adopts the one-time printing technology, the whole structure is not assembled or printed in pieces. It took three weeks to print the wind turbine, which has a base height of 10 meters and a support height of 200 meters, all at once. Many countries, construction companies and research institutions around the world are committed to the development and promotion of 3D printing construction technology. 3D printing is the most important reason of concrete construction technology with quick construction speed, low labor costs, no template construction, resource waste and design degrees of freedom less advanced advantage, through increased significantly at the same time the construction process of mechanization, better able to introduce intelligent design and control, to improve and optimize the construction process provides a great opportunity, Provide technical innovation and institutional reform for the construction industry. With the rapid development of urbanization and industrialization, modern difficulties such as talent shortage, resource exhaustion and security problems have seriously restricted the development of the construction industry.3D printing these advantages can relieve some of the problems in the traditional buildings, such as the lack of industrialization, serious environmental pollution, labor shortages, and raw resources waste, etc. This paper takes the development of 3D printing concrete progress as a starting point, introduced the concrete of the 3D printing, general 3D printing concrete, high strength concrete, the 3D printing and on the basis of them, further conclusions are drawn.
The renewable energy sources for electricity generation: Short review
Authors: Noralden Mohamed Bauid  , Md Mizanur Rahman
Published: January 2023

It is critical to increase the value of life in rural areas by developing power from renewable sources or expanding the grid. The extension of the national grid or off-grid systems depends on location, geography, population, distance from grid point, and land size. Since grid connections are not always available or feasible, off-grid rural electrification systems using renewable energy sources (RES) have become unavoidable. An alternative to costly grid extensions in remote areas of the world is a hybrid combination of renewable energy technologies. This review paper discusses renewable energy sources that can generate electricity for residential and commercial.
Gentiana kurro’s physiology and pharmacological properties: Recent update and future perspective
Authors: Sharma Aditi , Sharma Mamta Devi , Bhuyar Prakash , Mishra Puranjan , Kulshreshtha Saurabh
Published: January 2023

Gentiana kurroo royle is an endangered bitter medicinal plant of the Indian subcontinent. This medicinal plant mainly grows in Kashmir, Himachal Pradesh, and North-west Himalayas. The medicinal plant's root and rhizome are frequently used by native people for various local remedies. This species has become critically endangered due to its endemic nature and high rate of extraction from its natural environment. In India rhizome and root of this medicinal plant are used as ant periodic, bitter tonics, anti-inflammatory, blood purifier, expectorant, antipsychotic, carminative, and stomachic. Genitiana kurroo can be propagated through micro-filtration of seeds, rhizome cutting, shoot-made segments, and somatic embryogenesis. The roots of Genitiana kurroo are rich in various ingredients such as flavonoids, alkaloids, and terpenoids which are responsible for analgesic, anticancer, and immune-modular effects. Considering these perspectives the present review has intended to provide updated prospects of Gentiana kurroo and provides insights on the nutritional and various pharmacological properties based on updated research literature. This review explores the use of  Gentiana kurroo across disciplines for its wide range of prominent-pharmacological properties.
Pretreatment of barley straw with acid and alkaline solutions to boost the efficiency of fermentable yield enzymatic degradation in the separated fermentation technique for ethanol production
Authors: Anodar Ratchawet  , Chaiworn Panupat
Published: January 2023

Barley straw is a lignocellulose agricultural waste material that can be utilized as a raw material for ethanol production since it is easy to find, cheap, and has the potential to produce ethanol yield. This research aims to select the optimum pretreatment conditions to increase fermentable sugar production during enzymatic hydrolysis for bioethanol production. Initially, sulfuric acid at a concentration of 0.5, 1.0, 1.5, and 2.0% (v/v) pre-treated barley straw biomass was applied by autoclaving at 121℃ for 15 lb/in2 pressure for 15 min. Furthermore, acid-treated barley straw under the alkaline condition with calcium hydroxide concentrations of 1, 2, 3, and 4% (w/v) was autoclaved at 121℃ for 15 lb/in2 pressure for 15 min. Subsequently, the pretreatment of barley straw in the acetic and alkaline processes was compared. It was found that calcium hydroxide at a concentration of 2% (w/v) gave more sugar concentrations. Finally, combined acid and alkaline pretreatment with 2% of cellulase enzymatic hydrolysis had the highest total sugar concentration of 205.43 g/L and reducing sugar of 134.42 g/L, producing the highest ethanol yield (16.17 g/L) by 24 hours of fermentation.
Application of hurdle Poisson model to predict the abundance of toxic cyanobacteria Microcystis in reservoirs
Authors: Le-Huynh Truc-Ly , Itayama Tomoaki , Mitsunaga Kaito , Angalika Misigo , Suzuki Seiji
Published: January 2023

The blooming of toxic cyanobacteria Microcystis in eutrophicated reservoirs causes serious difficulties for water supply worldwide. For the appropriate management of such reservoirs, a prediction model of toxic cyanobacteria Microcystis can be a useful tool. Therefore, this study aims to develop a Bayesian hurdle Poisson model for statistical prediction of toxic Microcystis from only two predictors, air temperature and trophic state index (TSI) calculated from chlorophyll-a. The gene copy number of the mcyB gene was used as a surrogate of toxic Microcystis cell density. The data on mcyB gene and chlorophyll-a were collected from 20 reservoirs in Nagasaki Prefecture (Japan). The daily average air temperature was downloaded from the local meteorological stations and a mean for 30 days before sampling date was calculated. The results showed that higher temperature and larger TSI accelerate the growth of toxic Microcystis. Furthermore, this model successfully predicted mcyB gene copy number as a surrogate of toxic Microcystis cell density for different conditions of air temperature and TSI with sufficient accuracy. Therefore, the proposed model has the potential to be a useful prediction tool for toxic cyanobacteria Microcystis in the integrated management of reservoirs.
Assessing nutrient budget of ungauged catchment using intermittent water quality markers
Authors: Angalika Misigo W.S. , Suzuki Seiji , Le-Huynh Truc-Ly , Itayama Tomoaki , Tanaka Wataru
Published: January 2023

This study is a preliminary spatial-temporal assessment method of the ungauged catchment to determine the variation in water quality (WQ) and the land use influence on river basins’ health. The intermittent WQ data, the principal component analysis, and the redundancy analysis were used to evaluate the (dis)similarity among the 10 ungauged streams and their significance in the entire catchment. These revealed some similarities/differences in nutrient pollution and latent land-use influence on the streams’ health. There were similarities between R6-R7, R9-R10, among R1 to R4 basins, while R5 and R8 had distinct variances in their WQ dynamics. The intensive vegetable and rice production in R5, R7, R8, R9, and R10 basins were the major sources of high nutrient concentrations. The unique variations, especially in R5 and R8 basins could be attributed to other different pollution sources. Hence, it’s of great significance to carry out comprehensive research in the above 5 river basins. That is the efficiency of management practices, identification of pollution sources, and the extent to which the elevated nutrients in the streams interact with biota within the river regime. This research offers a method to evaluate WQ dynamics in relation to human interferences in river basins of a catchment with limited data under similar climatic conditions.
Statistical analysis of the effects of environmental factors and fish species on class-sorted phytoplankton composition in aquaculture ponds in northern Thailand
Authors: Le-Huynh Truc-Ly , Iwami Norio , Whangchai Niwooti , Gutierrez Redel , Shimizu Kazuya , Itayama Tomoaki
Published: January 2023

Understanding the phytoplankton in aquaculture ponds is critical for proper pond management. Despite the importance, the relationships between phytoplankton composition, cultured fish type, season, and nutrients were not well understood. This study statistically investigated these relationships in aquaculture ponds. Data collected at 21 tilapia and 13 catfish ponds in September 2009 (wet season), December 2009 (cold season), and March 2010 (hot season) in northern Thailand were used for the analysis. The statistical analysis showed that PO4-P and NH4-N concentrations in catfish ponds were significantly higher than in tilapia ponds (p < 0.05, Wilcoxon test). The cyanobacterial abundance in catfish ponds was significantly greater than in tilapia ponds (p < 0.05, Wilcoxon test). In the hot season (March), green algae were abundant (p < 0.05), while cyanobacteria were depleted (p < 0.05). Multiple linear regression model was applied to determine important factors for statistically explaining cyanobacterial abundance. The result indicated that the best model selected by AICc included season and pond type as factors influencing cyanobacterial abundance but not nutrients. However, since the effect of nutrients was included in the difference in nutrient concentration due to the difference in fish species in the ponds, it was speculated that nutrients were insignificant as explanatory variables. Furthermore, it was hypothesized that cyanobacterial abundance was reduced in March (hot season) because the predation of cyanobacteria by tilapia may be encouraged at high temperature.
Biomass-derived nano-catalyst for biodiesel production from waste cooking oil
Authors: Anodar Ratchawet  , Chaiworn Panupat
Published: January 2023

This study aimed to produce a nanocatalysts from inexpensive barley straw using nickel (Ni) and cobalt (Co) to support waste cooking oil-based biodiesel production. At 400 °C without oxygen and 1-5 bars of pressure, the gasification procedure of barley straw biomass (100g dry basis) was utilized in a muffle furnace with Ni and Co nano-catalysts. The biomass:Ni:Co catalyst mixing ratio is 1:1:1. The catalyst content and reaction time were applied for 2 hours. Then, at molar ratios of methanol:oil (6:1, 9:1, and 12:1) with the amount of catalyst (1, 2, and 3% weight percent basis), at 2 hours reaction time. Accordingly, the factors impacting the transesterification of biodiesel synthesis were evaluated. The process employing methanol:oil molar ratio of 6:1 and a catalyst quantity of 2% wt was the best for producing biodiesel. Based on the results of this study, nanocatalysts formed from biomass, which can be obtained from agricultural waste, hold commercial promise as a catalyst source for biodiesel.
Removal of CO2 and H2S from biogas and enhanced compressed bio-methane gas production from swine manure and elephant grass
Authors: Dussadee Natthawud , Reansuwan Kamoldara , Rameshprabu Ramaraj  , Yuwalee Unpaprom
Published: January 2023

Anaerobic co-digestion of concentrated swine manure with elephant grass silage was used, and this study carried out in full-scale three continuously stirred tank reactors was operated at mesophilic temperature. The Biogas impurity removal procedure was enhanced by using a molecular sieve and activated carbon. Two molecular sieve tanks are used to absorb water from the biogas. An activated carbon tank (2 meters) was used to eliminate H2S to < 1 ppm before entering the gas tank. In the form of compressed bio-methane gas (CBG), production was 14,400 m3/day (CH4 60-70%), and the amount of CBG was 9,600 m3/day 6.8 tons/day. The raw biogas containing CH4, CO2, and O2 are 68.8%, 29.7% and 0% with H2S 768 ppm. After the enhancement process, CBG having CH4, CO2, O2 are 89.35%, 10.05 0% and 0.02% with < 0.01 ppm H2S. Therefore, after the purification process amount of CO2, H2S gas was considerably reduced and CH4 was improved by up to 90% by volume, and then the CBG was compressed to 250 bar tanks to the fuel for cars. Therefore, these results clearly demonstrate that the activated carbon method is feasible to process for the removal of CO2 and H2S from biogas in a large-scale plant.
Cuidado à pessoa com transtorno do espectro do autismo e sua família em pronto atendimento
Authors: Sandri Juliana Vieira de Araújo , Pereira Isabela Antonio , Corrêa Thays Gabriela Lemes Pereira
Published: January 2023

A enfermagem tem como essência o cuidar e atua como linha de frente da assistência à saúde na maioria dos serviços. Dessa forma, esses profissionais se deparam com a diversidade das condições de saúde humana, o que inclui o Transtorno do Espectro Autista (TEA). Este artigo tem por objetivo o de analisar a atuação dos enfermeiros a pessoas com autismo, bem como à sua família, nas Unidades de Pronto Atendimento. Realizada uma pesquisa descritiva com abordagem qualitativa por meio de entrevistas semiestruturadas e audiogravadas, transcritas na íntegra e analisadas por meio do método de Análise Categorial Temática. Participaram da pesquisa 11 enfermeiros atuantes nas Unidades de Pronto Atendimento pertencentes a um município da Foz do Rio Itajaí (Santa Catarina). Através da fala dos profissionais entrevistados, ficou evidente que há certo conhecimento sobre o transtorno por parte dos enfermeiros, mas de maneira limitada. Fica clara a necessidade do papel da família como elo entre o paciente e os profissionais de saúde e a prestação do cuidado humanizado a esses pacientes. Desse modo, destaca-se a importância de uma maior abordagem do TEA na formação acadêmica e continuada desses profissionais, visando a prestação de um cuidado de qualidade e que esteja de acordo com as particularidades do sujeito.