bluuebunny/crossref_metadata_2025 huggingface dataset:
Review on phase change materials and application in building energy saving
Authors: Wu Xiangxiang
Published: February 2021

Phase change materials (PCMs) can be used for thermal energy storage and temperature regulation during phase change, and have broad application prospects in energy-efficient use and energy saving. The compatibility between traditional phase change materials and building materials is too bad to combine in building energy conservation. Therefore, the new phase change materials have become a research focus in the field of phase change energy storage in buildings. In the paper, the research progress of phase change materials in recent years and the optimization and application of passive building energy-saving are reviewed.
Review on active building energy conservation using phase change materials
Authors: Yang Dazhang , Wang Naixin , Xie Jing , Wang Jinfeng
Published: February 2021

With a increasing application of phase change energy storage technology in the fields of building energy conservation, refrigeration, and air conditioning, the shortcomings of traditional phase change materials (PCMs) have become important, which seriously restricts the development of phase change cold storage technology. Therefore, the new phase change materials have become a research focus in the field of phase change energy storage. The classification and characteristics of phase change materials are briefly described in the paper. In addition, the active building energy-saving are reviewed.
Research and analysis of production safety regulations for building and sanitary ceramic enterprises
Authors: Liu Shanyu , Wang Kaifang , Wang Yunli , Dang Haibo , Zhang Fan
Published: February 2021

Production safety standards are the foundation of industry safety supervision, the basic requirements and measurement scales for production enterprises to achieve management standardization, onsite standardization, and operation standardization. They are the foundation for the construction and sanitary ceramics industry to consolidate safety management, improve the intrinsic safety of equipment, and strengthen personnel safety awareness, The implementation of the main responsibility of enterprise safety production and the necessary requirements for building a long-term safety production mechanism are also the basic work of safety development. This article mainly studies and analyzes the current situation of production safety in the construction and sanitary ceramics industry and the overall situation of the existing safety production standards in this industry. Summarized the necessity and urgency of implementing the production safety regulations of building and sanitary ceramics enterprises.
Exploration on Digital Teaching of industrial design course
Authors: Gu Yan , Gu Li
Published: February 2021

In the spring of 2020, affected by the new epidemic situation, the state called for "suspension of classes and no suspension of school", and encouraged schools to use the Internet and other informationbased means for teaching. Deepening the reform of China's higher education, actively exploring the teaching of industrial design under the digital background, and cultivating designers with innovative spirit and innovative ability are the responsibilities of industrial design teachers. Digital teaching mode emphasizes students' independent and innovative learning, which is easy to realize digital virtualization of learning environment, and provides students with more creative space and practical freedom. Teachers should combine the requirements and characteristics of industrial design courses, with the help of webbased network teaching platform, multimedia production tools and network programming tools to construct the system mode of digital teaching resources system for industrial design courses. Digital teaching provides an effective means for teachers to implement innovative education and build a platform for students to learn independently. Exploring the advantages of digital teaching, developing multimedia courseware and innovating multi-media teaching material database have become effective teaching means to cultivate students' ability and ensure the quality and sustainable development of industrial design talents.
Brief Analysis of the Visual Language of Digital Animation
Authors: Zhao Chunhua
Published: February 2021

Digital animation is a new form of artistic expression of animation, which fully coincides with the cultural atmosphere and social context of pursuing visual perception in modern art. The visual language takes color, shape, space, motion as communication means to make appropriate expression in a specific context and carry out specific information transmission. Therefore, digital animation is not only an artistic product, but also a trend of visual communication exploration. It combines science and technology with art, providing more possibilities for artistic creation. This paper takes the visual language as the main line and attempts to explore the characteristics, performance and formation mechanism of digital animation.
Analysis of China Underground Space Landscape Research Based on Data Visualization Technology
Authors: Yao Qian , Hua Zhang , Bin Xu , Cun Wen
Published: February 2021

Based on the research from 2000 to 2020 in China Knowledge Resource Database (CNKI) as the data source, with the help of CiteSpace V and VOSviewer digital technology, a knowledge map is drawn on the number of articles, issuing organizations and keywords of underground space landscape in China. Visualization technology shows the relationship between the structure, evolution, and cooperation of underground space and landscape research, and intuitively shows the research hotspots and frontier dynamics of underground space landscape in China. The experiments results show that the underground space landscape was in its infancy before 2003, and then it began to develop rapidly. At present, underground space landscape research in China mainly focuses on hot spots such as landscape design, urban underground space, and public space. Through the visualized map analysis of the underground space landscape literature, it shows the use of new energy and new technology to create energy-saving underground buildings will become a new research trend.
Research on the Regional Expression of Visual Elements in Modern Packaging Design under the Background of Modern Art
Authors: Yangang Zhou
Published: February 2021

China has a vast territory and abundant resources. Especially in recent decades, with the development of economic globalization, commodity packaging design has become an inseparable part in the social market economy. In order to realize and reflect the value of goods and make consumers desire to consume, unique packaging is the best way to attract them. With the development of regional culture, packaging art design with regional cultural characteristics has gradually become the focus of attention. The regional expression of commodity packaging design gives the unique artistic charm and aesthetic value of commodity packaging, which can not only promote the inheritance and development of regional culture, but also meet the cultural psychological needs of modern people returning and seeking root and the spiritual aesthetic needs in the context of daily life aesthetic. Based on the background of modern art, this paper analyzes the future development trend of regional characteristics in products by the expression of regional characteristics in product packaging, which has certain theoretical and practical research value.
The Practice and Theory of China's National Image in Hong Kong Region* A Case Study of Film and Television
Authors: Guangyao Zhu , Yandong Wang
Published: February 2021

Since Hong Kong was once considered to be the front line of the Cold War against China in the Anglo-American world, its film and television productions have been a significant ideological battlefield. Especially at that time, the western digital film and television production had a strong impact on the construction of national ideology in Hong Kong. It is evident that the artistic strategy of China's national image formation in the region, as viewed through film and television productions, has a targeted cultural and strategic orientation value. In this regard, this paper presents the viewpoints from the perspective of the development history of Hong Kong's film and television productions as well as the successful experience of image construction in Europe and America since the mid-twentieth century.
Study On The Graphic Structure And The Communication Ways Of Chinese Characters In The Light Of New Media
Authors: Liu Lin , Jiang Wenjun
Published: February 2021

Objective The new media has promoted the presentation of three-dimensional dynamic Chinese character images on the screen, with temporal and spacial, virtual and interactive characteristics. Therefore, this article aims to study the influence of new media art on the graphic structure and the communication ways of Chinese characters. Method Through the Exploration of the graphic structure of Chinese character and screen, visual representations of the character image and communication ways of the image, this article makes it clear that the character image supported by the new media technology is expanded from two-dimensional to three-dimensional mode, from static to dynamic state. Conclusions There appears more and more three-dimensional character image design which is presented with the new media. For example, animation and hypertext technology add the concept of motion to Chinese character, which means characters are designed in a dynamic way, getting rid of the traditional static subtitle presentation and bringing character design unprecedented opportunities and challenges.
Application of CAD-based Traditional Patterns in Interior Design
Authors: Jia Hongmei , Kuai Siyuan , Dong Jiali
Published: February 2021

Starting with the approach of representing traditional patterns with CAD in interior design, this paper analyzes the scenarios of application of traditional patterns realized through graphics, images and models and sets out that it is essential to analyze basic laws and characteristics of patterns as well as their fixed and variable elements and apply them appropriately to the interior space in order to achieve the purpose. The analysis on variable elements of traditional patterns is carried out from three aspects, namely the appropriate embellishment of colored painting, direct application of traditional partition boards and innovation based on traditional patterns.
Innovative digital technology design and game healing-Serious Game's innovative design for children with special needs
Authors: Feng Yang
Published: February 2021

Digital technology promotes the innovation and development of design. With the development of science and technology, design has changed the traditional design mode. We must stimulate the innovative potential of design and let digital technology play a greater driving force.The current era of "internet of all things" is also a new challenge to the development of human civilization. Game design as an important part of modern design, its design innovation is worth thinking about: How to use the rapidly changing Science and Technology; how to organically connect the real world with the virtual world; how to skillfully integrate human care into the game design; how to use the game to pay attention to special groups; how to make the function of the game get multi-dimensional presentation and other aspects are worth discussing.
Creating a Digital Card of Local Culture from the View of the Belt and Road- Taking Innovative Design Thinking of Zhenjiang Cultural and Creative Products as an Example
Authors: Liwen Wang
Published: February 2021

The further refinement and external transmission of local cultural characteristics and core values is a brand-new way of promoting local cultural development under the opportunity of multi-cultural exchanges under the Belt and Road Initiative. Taking the innovative design thinking of Zhenjiang cultural and creative products as an example, this paper discusses how to make better use of local traditional cultural resources, starting with cultural and creative products, illustrate their modern value during inheritance and protection and create a digital card of Zhenjiang culture to facilitate cross-cultural exchange and transmission effectively, improve the urban competitiveness of Zhenjiang and establish a good city image, thus promoting the local culture of Zhenjiang to the world.
Research on the Application of Data Visualization Design in CBA League News
Authors: Sui Yi , Zhang Honghai
Published: February 2021

In the context of the era of intelligence, the capacity and function of data is expanding, and is playing an irreplaceable role in the field of sports news. This paper studies the data expression mode of sports news. From the point of user needs and the characteristics of visual data, this paper discusses the methods and suggestions of data visualization design in CBA league news, in an attempt to form an intuitive, efficient and convenient visual form of sports news, which can promote the multi-dimensional development of visual symbols in sports news, and promote the progress of data analysis and prediction. The data visualization has become the core competitiveness of sports news.
A Study of the Creative Design Education In View of Convergence Design
Authors: Su Kun , Zhang Jin Hua
Published: February 2021

The futurist, Daniel H. Pink, characterized the 21st century as an era of "convergence" and "perpetual". In his book, "A Whole New Mind", he proposed that we are transforming from a philosophy that emphasizes logic, order and computer efficiency to the age of innovation, empathy, and inter-disciplinary integration [1]. The integration of traditional business models, technologies, and related processes will become the driving force for next industrial revolution. Toffler & Alvin also argued in his book "The Third Wave" that with the continuous development of the knowledge and information, the partitioned societal structure will become meaningless [2]. Therefore, in the age of perceptivity that emphasizes on the integration, if the country or organization wants to take the lead, the education of integration and perceptivity in the education system will become indispensable. Abraham Maslow said that education is a process of acquiring knowledge, a means that the national and economic development depends on, and a planned change in human behavior. Therefore, developing creative future integrated designers whose minds and talents are consist with the converging markets, and who are sensitive to customers’ needs in a timely manner is an important issue in the field of education today. This study attempts to investigate the current status of convergence design and its education. Based on this study, some new suggestions will be proposed on the necessity of convergence design and convergence design education.
Decoding the Visual Characteristics of Chinese Painting Strokes-A Study on Gao Gu You Si Stroke
Authors: Hu Xue , Joneurairatana Eakachat , Simatrang Sone
Published: February 2021

The architect Le Corbusier once said this theory: Design has local characteristics and universal characteristics. Local characteristics are greatly influenced by culture. The strokes are the one essence of Chinese painting that characteristics of the strokes are unique to Chinese visual culture. Among Chinese painting strokes, Eighteen Strokes are the typical representative of the aesthetics of Chinese visual culture. However, the current research on the cultural characteristics of Eighteen Strokes is insufficient. The objective of this article is taking Xie He’s Six Canons as the theory to decode the content of the aesthetic characteristics of the Gao Gu You Si Stroke (one of the Eighteen Strokes), then to get the visual cultural characteristics of Chinese painting strokes and the fundamental perspective characteristics of the inheritance visual cultural. Based on this, this article will use the Content Analysis Approach to conduct research, by decoding the aesthetic content of the Chinese painting strokes to construct the personality and characteristics required by Chinese visual design.
Green belt’s effect on fine particle matter (PM2.5) in residential cluster: based on CFD simulation
Authors: Xiong changwei , Chen qingchang
Published: February 2021

In the area of residential green belt planning, most planners pay attention to the landscape function of green belts, while few researchers consider the impact of green belt on the concentration of fine particulate matter in the air. Based on site investigation, information about plants, buildings and weather in the selected area were collected, combined with air pollution measurement, four CFD models with different green belt composition were built and simulated. The results showed that at the residential cluster scale, green belts had two effects on fine particles: blocking and agglomeration. Under the two effects, the role of green belts in reducing fine particulate pollution was not always positive, improper green belts could even aggravate air pollution. This study discussed the impact of different greenbelt composition on PM2.5 concentration in residential clusters by CFD simulation, providing theoretical and methodological support for green belt planning and healthy city planning.
Degradation of methylene blue organic wastewater by plasma assisted method
Authors: Zhuansun Menglin , Liu Linsheng , Wang Yanting , Zhai Limin , Chen Xinyi , Tian Chunsuo
Published: February 2021

In the current situation of water shortage and serious pollution, plasma discharged technology has a useful application prospect in sewage treatment. In order to control the degradation rate of pollutants, the effects of different gas environment, OH scavenger ethanol and H2O2 on the degradation of methylene blue simulated organic wastewater by plasma assisted method were studied. The experimental results show that the effect of air plasma discharge is slightly better than that of atmospheric pressure argon discharge. Ethanol can remove OH, thus reducing the degradation rate of methylene blue, while H2O2 can improve the degradation rate.
Research on hot air ice melt system for cable sheaths of Er’qi Yangtze River Bridge
Authors: Liu Qianqian , Han yongtao , Fan xueliang
Published: February 2021

To prevent the cable sheaths of Er’qi Yangtze River Bridge from freezing under bad weather in winter, which may lead to ice fall and bring traffic safety accidents, a theoretical model and technical scheme of hot air ice melt system for Er’qi Yangtze River Bridge has been proposed. Based on the established heat transfer model for cable sheaths, the characteristics of heat transfer between internal hot air and outdoor environment have been analyzed. Under the condition when the temperature of the end of cable sheath’s outwall is more than 3°C, the range of temperature and speed of input hot air were estimated, which provides a theoretical basis for hot air melt system for cable-stayed bridge sheaths.
Research on environmental Accounting Information Disclosure of energy Pollution Industry - Case of the listed companies in coal industry
Authors: Li Hong
Published: February 2021

The coal industry plays a pivotal role in China’s energy industry, which not only brings about rapid economic growth but also causes serious ecological environmental problems. This paper selects 25 listed companies in the coal mining and washing industry as the research objects to analyse the current situation and problems of environmental accounting information disclosure. This paper puts forward some suggestions for improving the environmental disclosure, so as to provide reference for promoting the transformation and upgrading of the coal industry.
Research on Safety Evaluation Method of Integrated Optical Storage and Charging Station
Authors: Zhang Jing , Jia Junguo , Huang Hui , Long Yi , Li Taoyong , Sun Linlin , Sun Hao
Published: February 2021

This paper studies the correlation between charging process performance indicators and charging safety of Solar-Energy storage-Charge station, analyses the influence of environmental factors, technical factors, design factors, management factors and user factors on charging process safety of energy stations. The projection pursuit algorithm is used to evaluate the influence degree of each parameter on the safety of charging process; through the establishment of charging safety evaluation system, the safety risks of battery damage and even fire caused by excessive charging current and high battery temperature are identified. The monitoring parameters corresponding to the charging safety state are determined. According to the different battery types adopted by different vehicle models, the corresponding charging mode is determined. According to the monitoring results of key data of the core equipment in the charging process, such as charging current, charging voltage, battery temperature, etc., the charging strategies of different vehicle models and different battery types are analysed, which provides reference for the safe operation of charging process.
The operating mode of electric vehicles and its impact on renewable energy consumption
Authors: Li Xiaoyu , Shang Shanshan , Liu Dunnan , Zou Mengjiao , Zhang Tingting , Wang Lingxiang , Zhang Yue , Liu Mingguang
Published: February 2021

Nowadays, under the dual pressure of fossil energy shortage and ecological environmental pollution, new energy vehicles have flourished in our country by virtue of their clean and low noise advantages. But correspondingly, the grid connection of electric vehicles will also bring many problems. Therefore, this article attempts to explore the operating mode of electric vehicles and its impact on the consumption of renewable energy, so as to provide reasonable planning of charging facilities and improve the top-level design of the grid.
Research on the Capacity of Li-ion Battery Packer Based on Capacity Incremental Curve
Authors: Tian Yu , Zhu Zhengyuan , Liu Shuangyu , Qian Dongpei , Yan Xiao , Wang Jonggeng , Dong Dong , Liu Zhongcai
Published: February 2021

Lithium ion battery is the most widely used and reliable power source for electric vehicles. With the development of electric vehicles, the safety, energy density, life and reliability of lithium ion batteries have been continuously improved. However, in the field of vehicle power battery technology, battery monomers are combined in series and parallel to provide enough energy, but one of the major problems faced by group batteries is the consistency between battery monomers. Taking the capacity increment curve (IC curve) of lithium iron phosphate battery as the analysis tool, it is found that the characteristic peak of IC curve of different monomers in battery pack can reflect the relationship of monomer capacity. On this basis, the mathematical model is established, and the IC curve II peak characteristic point of a single cell are used as the reference to characterize the capacity of the single cell one by one. The results show that the method can be used in the normal charging process of the battery pack, and the capacity of the single cell in the battery pack can be characterized in real time during the whole life of the battery pack. It has certain research value for the ladder utilization and accurate management of battery pack.
Analysis of junction capacitance characteristics of trench gate IGBT
Authors: Wang Bo
Published: February 2021

Trench gate field termination IGBT represents the latest structure of insulated gate bipolar transistor (IGBT). Because the internal current of IGBT includes the charging and discharging current of gate capacitance and internal junction capacitance during switching transient, the influence of junction capacitance should be considered. The conductive channel of trench gate structure is different from that of planar gate structure, and the analysis method of junction capacitance using planar gate structure will inevitably bring some deviation. Based on the characteristics of trench gate structure, this paper analyzes the different expressions of internal gate-drain junction capacitance in two cases according to whether the base depletion layer can be widened to cover the trench gate, and finally carries out simulation and experimental verification.
Influence of Loading Peak and Loading Rate on Twin Fibers Pullout Test of Concrete Matrix
Authors: Zhang Yafang , Luo Feihua , Lu Juan , He Juan , Zhuang Yuhai
Published: February 2021

Numerical analysis software based on linear finnite element method and statistical damage theory concrete material has been adopted in this study. Dynamic numerical model of twin fibers pullout test of concrete matrix have been created by considering the meso-heterogeneity of concrete material. The whole process from micro-cracks initiation, propagation to crack penetration has been simulated. The influence of stress wave loading peak and loading rate on twin fibers pull-out test of concrete matrix under dynamic load has, therefore, been scrutinized. Results show that loading rate has effect on failure mode and crack propagation along interface of the twin fibers pull-out specimens. With increasing loading rates, the rate of interface crack propagation and damage area increase either.
Evaluation of green building incremental cost and benefit based on SD model
Authors: Long Guoqiong , Xu Tianxiang , Li Chong
Published: February 2021

In order to eliminate the characteristics of long payback period and external economy of green building investment, and realize the accurate evaluation of green building cost and benefit. Based on the new estimation method, this paper constructs the system dynamics(SD) model of incremental cost-effectiveness of green building, and the rationality of the model is further tested and judged. This paper studies the change law of incremental cost and benefit of green building energy saving from the perspective of SD model. The incremental benefit of green building is greater than the incremental cost, and the time balance between them is about 8.0 years. The conclusion can provide enlightenment for the further development of green building.
Research on Safety Measures of Shallow-buried and Undercut Tunnel
Authors: Liu jian-Jun , Liu Xue-Ying , Fan Zhong-Jing , Yang Bao-Feng
Published: February 2021

The application of mine method shallow burying and undercutting method in subway and tunnel engineering is becoming more and more significant, but shallow burying and undercutting method also has its own limitations: the shallow burying and undercutting method can easily cause the subsidence of nearby surface, there is a security threat to surrounding buildings, the instability of the tunnel inside, easy to cause the collapse of construction tunnels, endangering construction safety, so ensuring construction safety becomes the key to the project. By combining the examples of the Heyi River Tunnel in Quzhou, the project focuses on the safety measures of tunnel surrounding rock, and simulates tunnel excavation with BIM technology.
Numerical Simulation on the Heat Dissipation of the Outdoor Unit in the Groove of High-Rise Building
Authors: Wang Yuan , Zhou Xiaoqing , Tian Ju , Liu Chuansheng , Wang Jian
Published: February 2021

In order to study the influence of the heat dissipation of the outdoor unit in the groove of the highrise building. Numerical simulation of the thermal environment of a high-rise building is carried out. The results show that: When the outdoor mean wind speed is 2.7m/s, the maximum inlet air temperature of the outdoor unit under full load condition is about 43.3 °C, which is 2 °C lower than that under no wind condition. The monsoon is beneficial to the heat dissipation of the outdoor unit. When the hot air in the building groove rises, the corner flow is induced at the lower side of the refuge layer. Due to the reverse pressure gradient, the flow separation occurs, resulting in the blockage in the flow channel. When the air flows through the refuge layer, the flow expands suddenly due to the increase of the cross-section of the channel. The turbulent boundary layer is separated. The vortex region is induced on the upper side of the refuge layer. Since the heat on the upper and lower sides of the refuge floor cannot be effectively dissipated, the inlet air temperature of the outdoor unit is higher than that of other floors, which reduces the working efficiency of the outdoor unit.
Study on Design of Concrete Box Girder of A Railway Swivel Cable-Stayed Bridge
Authors: Liu Yang , Ding Tenghui , Xie Qinyun , Xu Guangli , Li Chao
Published: February 2021

A swivel cable-stayed bridge over the existing railway is a span across the existing railway. The recommended scheme for the main bridge is (128 + 388 + 128) m steel mixed composite beam swivel diagonal pull bridge with span. The cables of the diagonal pull bridge are arranged according to the fanshaped central double cable plane, taking into account the mechanical performance and aesthetics. The bridge structure adopts semi floating system. The concrete swivel diagonal pull bridge is adopted in the comparison scheme. The design of the bridge is three spans and (138 + 268 + 138) m prestressed concrete box girder is adopted. The cables are arranged according to the central double cable plane, and the bridge composition adopts the consolidation system. Considering the needs of bridge operation and maintenance in the later stage of the bridge, when the dead weight of concrete diagonal pull bridge is within the ideal range, the concrete swivel diagonal pull bridge can be preferred. In order to calculate the dead weight of the selected bridge, the author uses the finite element software to model the whole bridge and calculate the weight of the bridge. The results show that the dead weight of the concrete swivel diagonal pull bridge is too large, which has exceeded the maximum bearing capacity of the existing spherical hinge. In order to continue to use the concrete swivel diagonal pull bridge scheme, it is necessary to optimize the design of the concrete swivel diagonal pull bridge scheme.
Experimental Study on Mechanical Properties of Small Size Viscoelastic Damper
Authors: Han Miao , Twizeyimana Richard , Du Hongkai
Published: February 2021

Long span roofs are very likely to oscillate when subjected to wind load that can lead to structure fatigue and endanger structures safety. Dampers have been used for long time to dissipate wind and earthquake induced energy in structures. This research work aims to present experimental study of small size viscoelastic damper that can be installed in truss of long span roof. Small size viscoelastic dampers that can be used to dissipate wind induced energy in large span roof structure need to be tested to know their performance behavior and mechanical properties at different loading amplitudes and frequencies. A kind of viscoelastic dampers were manufactured and tested under horizontal cyclic loads. Resistance and deformation of the damper were measured to study the viscoelastic damper properties dependence on frequency and amplitude. Mechanical properties including shear storage modulus, shear loss modulus, loss factor and energy dissipation are studied. Experimental results show that the small size damper’s mechanical properties are significantly related to its loading frequency and amplitude. The energy dissipation capacity of the damper was stable under different loading frequency and amplitude.
Research on prediction of concrete frost resistance based on random forest
Authors: Wang Lei , Zeng Tiemei , Tao Yanyan , Wu Xianguo , Chen Hongyu
Published: February 2021

Poor frost resistance of concrete will accelerate the deterioration of concrete structure and shorten the service life of concrete. This paper predicts the frost resistance of concrete and selects the initial index of factors that affect the frost resistance of concrete. The random forest algorithm is introduced to remove the unimportant indicators in the initial indicator system of the concrete mix ratio and determine the optimal indicator combination. The relative dynamic elastic modulus is used as the output index of random forest to predict the frost resistance of concrete. The proposed random forest model provides a reasonable and effective method for concrete frost resistance prediction.
Research on Public Spaces Reconstruction of Old Communities under the Concept of Micro-renewal
Authors: Duan Xiang , Xu Tai-Meng , Duan Chen-Hao
Published: February 2021

Community public space is an important place for daily communication between residents. In the context of the current historical change of “urban double repairs”, community renewal has raised new heights, and public space renewal has shifted from the surface of the physical space transformation layer to the protection, inheritance and environmental quality of the community. This article summarizes the concept and principles of micro-renewal, analyzes the related influencing factors of the reconstruction of the old community public space, further proposes the strategy of reconstructing the old community public space and enumerate several typical public space renewal schemes in old communities under the micro-renewal concept.
Research on SWMM Runoff Control Index Decomposition Based on Constraint Optimization Method
Authors: Huang Shiyuan , Liu Pengfei , Zhang Hongqin , Ding Zhipeng
Published: February 2021

The “Sponge City Construction Technical Guide” mentions the method for decomposing and implementing the annual total runoff control rate: volume method and model simulation method. Through research, it is found that the two are based on the control detailed planning level in decomposing the scale parameters of LID facilities. The indicators to each block are allocated through repeated tests through experience and trial calculations, resulting in a lack of scientific rationality in the process and results of the indicator decomposition, and because the Guide is still in the trial stage, there are few researches on the decomposition of runoff control indicators represented by SWMM. Therefore, with the help of MATLAB’s constraint optimization module and SWMM hydro-hydraulic model, this study proposes a complete set of decomposition ideas and methods for the decomposition and implementation of the annual runoff total control rate in the special planning of sponge city, and the index decomposition process through relevant cases Elaborate.
Slenderize Your Body: Application and Evaluation of Anatomy in Apparel Design
Authors: Cui Yan , Liu Xiaogang
Published: February 2021

The idea of thinness as beauty is still the dominant ideology of modern women, and body modification through clothing is one of the main motivations for women’s clothing consumption. Denim, as a primary category of body shaping apparel, has been gaining attention from brands and developers in recent years. This paper investigates an ergonomics-based approach for slim-fit denim garments that combines aesthetic plastic and stereovision into the fashion design. Ninety-seven female subjects with a background in fashion design were studied through data visualization and statistical analysis. Women’s perception of a denim clothing line with anatomy design factors (ADF) was studied. The results reveal that ADF has a positive effect on the visual perception of female consumers and can help subjects to visually optimize their body shape, increase their body satisfaction and purchase intent. This study provides theoretical and data support for the integration of fashion art and sustainable innovation.
Research on the Urban Edge Space Form of Tanhualin Historical Living Block in Wuhan
Authors: Sang Xiangrui
Published: February 2021

Edge space is not only the main place for residents’ public activities, but also the key component of urban public space. It promotes people’s spontaneous activities and social activities. Reasonable urban fringe space design can create the possibility for people to transform the city from bottom to top. While preserving the cultural background, Tanhualin historical life block has formed a rich and varied space form. This paper analyses the composition of its marginal space to explore the importance of edge space to urban public activities.
Social criteria to develop an in use holistic urban sustainable assessment tool: UHU2SAT
Authors: Cordero Antonio Sánchez , Rodríguez Marta Videras , Melgar Sergio Gómez , Márquez José Manuel Andujar
Published: February 2021

Recently, several urban sustainability assessment tools (USAT) have appeared to reduce the human impact provided by the built environment. Few of them focus on the assessment of urban spaces like squares, streets, and parks, etc., but they don’t operation and maintenance (OM) phase is not considered. It would be necessary to develop an in use holistic urban sustainable assessment tool (UHU2SAT) to specifically assess urban spaces under OM phase. This paper provides a qualitative research among 188 studies, with the aim to classify them according to the impacts they pursue: environmental (ENV), social (SOC) economic (ECO) and Others. Finally, the SOC criteria are reduced up to 21 and arranged into 4 different groups: Human comfort, Urban mobility, SOC Cohesion, and Health & safety. These SOC criteria have been discussed and revised according to the literature review to identify the most suitable indicators for the UHU2SAT. Finally, it can be concluded that this methodology could also be useful to obtain ENV and ECO criteria to provide a holistic assessment of the sustainability.
Study on the Wearing Performance of Compression Stockings and Its Influence on the Blood Flow Velocity of Lower Limbs
Authors: Liu Hainan , Cheng Ling
Published: February 2021

Compression stockings can reduce venous pressure and improve venous return by applying progressive pressure on the lower limbs from bottom to top, thereby preventing and treating venous diseases of the lower limbs. The purpose of this research is to conduct a preliminary understanding and analysis of compression stockings through various mechanical properties and feel styles of compression stockings, and to explore the effect of compression stockings on the blood flow of lower limbs by using blood flow speed as an experimental index. The results show that low-grade compression stockings are more effective in accelerating blood flow in healthy people under sedentary conditions.
Mindestens eine von drei Personen weltweit bedarf einer Rehabilitation
Authors: Meyer Thorsten
Published: February 2021

Liebe Leserinnen, liebe Leser,

auch wenn uns die Auswirkungen der Pandemie weiterhin in Atem halten – es lohnt sich auch in diesen Zeiten der Blick auf die längerfristigen Entwicklungstrends in der Rehabilitation. Daher möchte ich gerne neben den Beiträgen dieser aktuellen Ausgabe Ihre Aufmerksamkeit auf zwei für die Rehabilitation international relevante Aktivitäten richten.
The Impact of Preoperative Assessment and Planning on the Outcome of Benign Hysterectomy – a Systematic Review
Authors: Björkström Lollo Makdessi , Wodlin Ninnie Borendal , Nilsson Lena , Kjølhede Preben
Published: February 2021

Knowledge concerning the impact of preoperative planning, patient information and patient factors on the outcome of benign hysterectomy is incomplete. This systematic review summarizes the current knowledge on the effect of preoperative planning and of preoperative patient factors on the outcome of benign hysterectomy. The PubMed/PubMed Central/MEDLINE, Scopus, Web of Science, TRIP Medical Database, Prospero and the Cochrane Library databases were searched. Inclusion criteria were prospective trials, hysterectomy for benign disease, systematic preoperative assessment, and article in English. Eighteen articles were included and categorized according to their main aims: use of a preoperative checklist, preoperative decision-making, preoperative information, and the effect on the outcome of surgery of factors that concerns patients preoperatively. Focused and well directed preoperative assessment and thoroughness in the preoperative decision-making was associated with
positive postoperative outcomes. The use of a checklist reduced the overall rate of hysterectomy and increased the use of minimally invasive surgery. Women were often inadequately informed before hysterectomy about the possible side effects after surgery. Preoperative anxiety and preoperative pain were associated with postoperative pain and lower quality of life. The indication for surgery had an impact on the reported quality of life postoperatively. The extent of preoperative planning seemed to affect the outcome of surgery. Preoperative patient factors influenced the postoperative recovery. Prehabilitation measures need further development and should be integrated in the preoperative planning. Prospective studies are warranted to evaluate and improve the preoperative planning in a systematic setting before performing hysterectomy for benign disease.
Akut nekrotisierende Pneumonie bei Blaumeisen
Authors: Merbach S. , Schönhofer B.
Published: February 2021

Anfang März 2020 häuften sich die Beobachtungen über eine zunehmende Anzahl toter Blaumeisen. Die erkrankten Meisen litten v. a. an respiratorischen Symptomen. Der Grund für das Massensterben blieb zunächst unklar. Bis Anfang Mai sind etwa 18 000 Verdachtsmeldungen zum Blaumeisensterben mit ca. 33 000 betroffenen Vögeln eingegangen. Das Maximum waren fast 1300 Meldungen am 10. April. Die Zahl der Meldungen war in den folgenden Wochen wieder rückläufig. Schätzungen entsprechend sind in Deutschland in dieser Zeit ungefähr 1,7 Millionen Blaumeisen verstorben.

Bei einem großen Teil der untersuchten Meisen wurde das Bakterium Suttonella ornithocola in der Lunge nachgewiesen.

Da der Erreger eine Lungenentzündung verursacht, ist v. a. eine Übertragung via Aerosol oder durch Kontakt mit infizierten Sekreten anzunehmen.

Obduktionen der Tiere ergaben Lungenkongestionen, blutigen Darminhalt und einen schlechten Ernährungszustand. Histologisch wurden in den Lungen gering- bis mittelgradige akute nekrotisierende Pneumonien gefunden. Da Suttonella ornithocola auch im Parenchym von anderen Organen nachgewiesen wurde, ist von einer zusätzlich vorliegenden akuten Sepsis auszugehen. Möglicherweise ist Suttonella ornithocola zudem ein Enteritiserreger, da sich im blutigen Darminhalt Suttonella ornithocola nachweisen ließen. Neben den Atemwegen könnte daher die fäkal-orale Ausscheidung des Erregers über den Kot ein weiterer Infektionsweg sein.
Reizdarmbehandlung mit Lactobacillus plantarum 299v: Längere Einnahme verstärkt Behandlungserfolg – Ergebnisse einer nichtinterventionellen Studie
Authors: Krammer Heiner , Storr Martin , Madisch Ahmed , Riffel Julia
Published: February 2021

Einleitung Die Behandlung des Reizdarmsyndroms (RDS) ist in der Praxis oft eine Herausforderung. Als Therapieoption gewinnt die Modulation des Darmmikrobioms dabei immer mehr an Bedeutung. Die Wirksamkeit des Bakterienstamms Lactobacillus plantarum 299v (LP299V) wurde bei Reizdarmpatienten bereits in mehreren placebokontrollierten Studien über 4 Wochen gezeigt. Ziel der im Folgenden beschriebenen nichtinterventionellen Studie war es, die Verträglichkeit und Wirksamkeit von LP299V unter Praxisbedingungen zu untersuchen und neue Erkenntnisse über einen längeren Einnahmezeitraum zu gewinnen.

Methodik In 25 Zentren wurden prospektiv Daten von 221 RDS-Patienten zur Verträglichkeit und Wirksamkeit von LP299V (1 Kapsel/Tag; 1 × 1010 KBE) über eine maximale Beobachtungsdauer von 12 Wochen erhoben. Die Erhebung erfolgte mittels Reizdarmtagebüchern und ärztlicher Dokumentation bei den Studienvisiten. Die Veränderung von Häufigkeit und Schweregrad der Beschwerden gegenüber der Baseline wurde als primärer Endpunkt festgelegt.

Ergebnisse Im Verlauf der 12-wöchigen Behandlung kam es zu einer signifikanten und kontinuierlichen Reduktion der Gesamtsymptomatik (p < 0,05). Darüber hinaus kam es zu einer signifikanten Reduktion von Schwere (S) und Häufigkeit (H) einzelner Symptome, wie Abdominalschmerz (S: – 67 %, H: – 51 %), Flatulenz (S: – 61 %, H: – 63 %), Diarrhoe (S: – 70 %, H: – 32 %) und Obstipation (S: – 79 %, H: – 6 %). Das Gefühl der dringlichen und unvollständigen Entleerung sank ebenfalls signifikant (p < 0,001). Die Lebensqualität der Patienten stieg signifikant an (seelisches Wohlbefinden: + 110 %, negativer Einfluss auf den Alltag: – 67 %, p < 0,01). Die Langzeitbehandlung mit LP299V wurde von 94 % der Patienten als gut verträglich bewertet.

Diskussion LP299V konnte die Gesamtbeschwerden von RDS-Patienten unter deutschen Alltagsbedingungen signifikant bessern. Um einen größeren Effekt zu erzielen, ist eine längerfristige Einnahme von LP299V (hier 12 Wochen) sinnvoll; die Verträglichkeit ist in diesem Zeitraum gut.
Polyethylenglycol – Freund oder Feind?
Authors: Bayerl C. , Herbst M.
Published: February 2021

Anaphylaktische Reaktionen nach Impfungen sind selten. Zwei Fälle von Reaktionen nach der Pfizer-BioNTech-Covid-19-Vakzine, BNT162b2, wurden aus dem UK berichtet, weitere 19 aus den USA. Als möglicher Auslöser wurde Polyethylenglycol (PEG) angeschuldigt. Pegylierung ist ein üblicher Vorgang in der Impfstoffherstellung, um die Substanzen vor schnellem immunologischem Abbau zu schützen. PEG ist ein Polyether (Synonyme z. B. Laureth-9, Polidocanol, Thesit, Macrogol) und findet sich in Kosmetika, Körperpflegeprodukten, Nahrungsmitteln, Liposomen und Nanopartikeln als Drug-Delivery-Systeme für Medikamente und als osmotisches Laxans vor Gastro-/Koloskopien. IgM-Antikörper auf PEG werden bei 70 % der Bevölkerung nachgewiesen. Bei 2 Fällen von Soforttyp-Reaktionen auf PEG fanden sich IgE-Antiköper, bei anderen Medikamentengaben mit PEG geht man von pseudoallergischen Reaktionen über die Komplement-Aktivierungs-related Pseudoallergie (CARPA) aus. In Relation zum weit verbreiteten Einsatz von PEG sind die Impfreaktionen sehr selten und aktuell kein Grund, Allergiker oder Menschen mit Anaphylaxien bei entsprechenden Vorsichtsmaßnahmen auf bekannte Auslöser auszuschließen. Aufgrund der Meldepflicht (Gesundheitsamt und Arzneimittelkommission der deutschen Ärzteschaft) ist bald mit weiteren Erkenntnissen zu rechnen.
Total Synthesis of the Natural Carbazoles O-Demethylmurrayanine and Murrastanine A, and of a C4,C4′ Symmetric Murrastanine A Dimer from N-Phenyl-4,5-dimethylene-1,3-oxazolidin-2-one
Authors: Benavides Adriana , Jiménez-Vázquez Hugo A. , Avila-Melo José Luis , Fuentes-Gutiérrez Alfredo , Tamariz Joaquín
Published: February 2021

The synthesis of natural carbazoles O-demethylmurrayanine and murrastanine A starting from the title exo-heterocyclic diene­ is described. In the synthesis of murrastanine A, its symmetric C4,C4′ dimer can be obtained as the sole product under rather mild conditions. In all cases, the key intermediate is the same diarylamine. The carbazole nucleus is obtained through a Pd-promoted cyclization of the appropriate diarylamine. For the synthesis of O-demethylmurrayanine, the cyclization takes place on a silylated derivative. The crystal structures of murrayanine, two diarylamines, and two non-natural carbazole intermediates are also presented.
Chemoselective Transfer Hydrogenation of α,β-Unsaturated Ketones Catalyzed by Iridium Complexes
Authors: Luo Renshi , Xia Yanping , Ouyang Lu , Liao Jianhua , Yang Xiao
Published: February 2021

Efficient chemoselective transfer hydrogenation of the C=C bond of α,β-unsaturated ketones has been developed, using the iridium complexes containing pyridine-imidazolidinyl ligands as catalysts and formic acid as a hydrogen source. In comparison with organic solvents or H2O as solvent, the mixed solvents of H2O and MeOH are critical for a high catalytic chemoselective transformation. This chemoselective transfer hydrogenation can be carried out in air, which is operationally simple, allowing a wide variety of α,β-unsaturated substrates with different functional groups (electron-donating and electron-withdrawing substituents) leading to chemoselective transfer hydrogenation in excellent yields. The practical application of this protocol is demonstrated by a gram-scale transformation.