bluuebunny/crossref_metadata_2025 huggingface dataset:
Research on the Image Narrative Strategy Based on the Digital Vision — Thinking about the Creation of the Illustration Book “Yuxiang Yarn Factory”
Authors: Wan bao Ge
Published: February 2021

With the transformation of media technology and social context in the new era, image provides auxiliary strategies for the diversified manifestations of culture in the process of communication. Traditional design drawings are increasingly unable to meet the new context requirements of modern architectural culture communication in terms of expression mode and acceptance by the public. As a new form of cultural dissemination or another way: digitization, imagery, narrative, and popular expression have begun to arouse discussion and thinking. With the help of digital technology as an expression of visual media, this paper tries to explore the potential of “image” as a medium to depict space, which brings about spatial situational experience and narrative expression. In addition, through montage and axonometric space operation, we explore the theory and practice in the narrative strategy of images, so as to build a bridge of communication between spatial experience of spatial consciousness and images. To be more precise, it emphasizes the connection between the image using digital technology as the medium and the spatial experience, and then uses the key of “imagine” to sort out the context of spatial awareness and emotional cognition.
Innovative Methods for Restoration and Digital Landscape Design of Abandoned Railway Ruins
Authors: Xiao Li , Yanrong Zhu
Published: February 2021

The purpose of this paper is to investigate the abandoned railway runis, intervene in the innovative methods of digital landscape desgin, and explore various possibilities of historical restoration of abandoned railway under the background of digital acquisition, protection, restoration and dissemination through four stages. This paper analyzes the fusion path between the historical restoration of rail way site and the digital landscape design, which provides a reference for the construction of the digital protection system of railway industrial historical and cultural heritage.
The Application of Entertainment Design And Digital Technology in Children's Educational Exhibition Space——Take the "Art Education in Fun" exhibition as an example
Authors: Si-hang Cheng , Yun-long Wang
Published: February 2021

The purpose is by integrating entertainment design and digital technology thinking into the display space design, enhancing spatial narrative and interactive experience, stimulating children's interest and imagination, and cultivating innovative thinking mode. The methods is taking the exhibition planning of "Art Education in Fun" as an example, visually displaying the narrative space, combined with digital technology and entertainment interaction, strengthening the fit between the two-dimensional plane and the three-dimensional space, and providing the audience with a more dimensional and stronger textured exhibition experience. The conclusion is with the addition of entertainment design and digital technology, deepening the basic value of the information dissemination in the exhibition space itself, building a better information exchange platform, and providing a positive boost to culture, education, and industrial economy.
Research on the Application of Cultural Symbol Digitization in Movie Poster Design
Authors: Chunyuan Liu , Li Liu
Published: February 2021

With the vigorous development of the film industry, film posters, as the first impression of the film on the audience, break the language barrier and become an important medium for the output of cultural ideology. From the perspective of cultural symbols, this article explores the differences between the digitalization of Eastern and Western cultural symbols in the design of Chinese and foreign movie posters, and analyzes the digital symbols in the design of movie posters from a cultural perspective, providing a new thinking for the digital design of cultural symbols in movie posters.
Analysis of interface usability evaluation using digital measurement tools
Authors: Pan Xinyun , Donkor Edwin Kofi Nyefrer , Sha Chunfa
Published: February 2021

Based on the articles on interface usability collected by CNKI and Web of Science (WOS), the current research status, trends, and recommendations on interface usability were analyzed in terms of the number of articles published, literature sources, institutions, authors, and keywords by combining the CNKI and WOS bibliometric analysis tools and CiteSpace information visualization software. Using digital technology methods such as bibliometric analysis, data visualisation and knowledge mapping analysis, the following conclusions were drawn. Research on interface usability mainly focuses on usability testing and interface optimization. At present, the research methods of interface usability are relatively mature, and the evaluation direction of interface usability tends to combine the eye movement experiments, the subjective and objective evaluation of users. The use of digital tools to study the current situation, hotspots and trends in interface usability can provide advice and assistance in the design of relevant interfaces.
Application Research of 3D Digital Technology in Sculpture Creation
Authors: Shi Linlin
Published: February 2021

This paper analyzes the concept of 3D digital technology first and the characteristics of traditional sculpture creation forms, then expounds the main points that should be paid attention to in the application of 3D digital technology in sculpture creation, and finally makes an in-depth analysis of the advantages of introducing 3D digital technology into sculpture creation, including the improvement of creative thinking and efficiency, unlimited creative space and the ability to convert different creative techniques in the creative process. Based on the development status of sculpture creation in China, this paper explores the application of 3D digital technology in sculpture creation.
Quantitative Evaluation of Plant Priority Protection in Cao Lake Wetland Nature Reserve
Authors: Zhang Xinyang
Published: February 2021

Based on the survey data of plant resources in Cao Lake Wetland Nature Reserve, using analytic hierarchy process (AHP) and square root method, the evaluation system of plant priority protection was constructed. From three aspects of endangered coefficient, genetic coefficient and species coefficient, the plant species in the reserve were evaluated quantitatively and comprehensively, and the protection levels were divided. The results showed that there were 179 plant species in nature reserve, including 5 endangered species, 9 vulnerable species, 41 near threatened species and 124 least concerned species. The priority protection levels of plants were determined, including 1 species of the primary protection, 12 species of the secondary protection, 20 species of the tertiary protection and 146 species of the delayed protection, and corresponding protection suggestions were put forward. The purpose is to provide more effective background information and data support for the plant protection work and to help protect biodiversity.
Study on the Rhizosphere Soil Microbial Community Structure Associated with Five Land Use Types in Jinchuan Mining Area
Authors: Gao Tian-Peng , Fu Jing-Wen , Zuo Ming-Bo , Liu Yu-Bing , Xu Dang-Hui , Chang Guo-Hua , Tai Xi-Sheng , Yue Bing , Yin Zhuo-Xin , Zhang Qing
Published: February 2021

Five different land use types (desert, farmland, mining park, slag heap and tailing dam) were selected as variables around the Jinchuan Cu-Ni mining area in Jinchang, Gansu Province in the present study. The Atriplex canescens (Pursh) Nutt.’s rhizosphere bacterial abundance, diversity and community composition were examined taking advantage of High-throughput sequencing technology to discuss the effect of soil physicochemical properties on soil microbial community structure. The result indicated that the phylum Proteobacteria and Firmicutes was the most dominant taxon in desert, farmland and mining park, with a high abundance more than 30%. The phylum Proteobacteria was the most dominant taxon in slag heap and tailing dam, with a high abundance more than 40%. The tailing dam had the highest bacterial Chao indexes and the farmland had the highest bacterial Observed species indexes, Shannon indexes and Simpson indexes. Observed species indexes and Shannon indexes between the five sites were significantly different. The redundancy analysis and principal component analysis showed that the main environmental factors caused the different of rhizosphere bacterial community structure in five land use types were Mg, Ca, Cu, TN and moisture, followed by Ni, Cr, K, Pb, Zn content and pH. Hence, the result indicates that land use and soil environmental factors had significant impact on the diversity of soil microbial community structure.
Effect and mechanism of C2HF5 on premixed flame of runaway gas (syngas) in lithium-ion batteries
Authors: Zhao Chenyu , Guo Zidong , Zhang Guiyun , Zhang Tianwei , Liu Zhaoqing , Liu Hao
Published: February 2021

Lithium-ion battery is a new type of clean energy. Due to manufacturing defects, improper use, unexpected accidents and other reasons, lithium-ion battery thermal runaway fire and explosion accidents are frequently re-ported, and its safety has become an important issue to be solved. In this paper, the effect of second-generation halon substitute C2HF5 on runaway gas premix flame of lithium-ion battery are studied by experiments and numerical simulations.The bunsen burner was used to measure the changing trend of the premixed flame velocity of the runaway gas/air under different equivalent ratios and different concentrations of C2HF5. The results show that the flame velocity is in good consistency with the model under the conditions of lean flame and low inhibitor addition.The promotion effect of inhibitors on combustion has been verified by bunsen flame. Compared with CH4, C2HF5 is more suitable for inhibiting syngas flame of lithium-ion batteries, and the effect on the rich flames is better than lean flames.
An Empirical Study on the Relationship between Atmospheric Environmental Quality and Economic Growth in Shaanxi Province
Authors: Guo Rong
Published: February 2021

According to the panel data of Shaanxi province from 2005 to 2018, the simultaneous equations were constructed through cubic polynomials to study the relationship between the atmospheric environment and economic growth in Shaanxi. The results show that the relationship between air pollution and GDP per capita in Shaanxi province presents an inverted n-shaped curve, which indicates that the economic growth in Shaanxi province causes the fluctuation of air quality, and reflects the relationship that the air pollution in Shaanxi improves first, then worsens and finally improves further with the economic growth. At the same time, the research results show that adjusting the industrial structure, increasing investment in environmental management, reducing the emission of atmospheric pollutants, and reducing energy consumption can promote the sustainable development of the Shaanxi economy and improve the quality of the atmospheric environment.
Study on soil and water conservation regionalization in Changji Prefecture
Authors: Zhang Xiaozhuang , Gao Yajun
Published: February 2021

Taking once during as the study area, the course by using the DPSIR model and a lot of literatures screening of high frequency index, and quantitative analysis combined with the expert appraisal method, on once during regionalization index system establishment, course planning method was studied, determining the topographical features, water loss and soil erosion prevention and control system, land exploitation and utilization of direction, after years of average rainfall, population density, coverage of trees, soil and water loss area total area percentage as indicators of dividing the partition of soil and water conservation, such as in the villages and towns as the basic unit. Through principal component analysis, cluster analysis, the GIS space superposition method for regionalization, will once during divided into course will once during is divided into six course four areas: the southern mountain freeze-thaw district, Zhongshan in southern hilly water conservation ecological reserve, with low hills in southern soil conservation area, central oasis environment farmland protection area in northern desert ecological maintenance, low mountain in northern wind sand area, ecological maintenance area 6 level 4 area of water conservation, determine the various functional areas of soil erosion prevention and control of system layout, the direction of land use, for once during planning of soil and water conservation and soil erosion prevention and control system of the course layout provides the scientific basis.
Research on evolution game of clothing enterprises’ carbon emission reduction investment considering free riding behavior
Authors: Guo Hangxin , Liu Zheng , Zhao Mengmeng , Wang Huihui
Published: February 2021

“low carbon economy” puts forward new requirements for carbon emission reduction in all links of the supply chain. This paper takes the three-level clothing supply chain composed of government, supplier and manufacturer as the research object, considering the “free riding behavior” of clothing supplier and manufacturer, by constructing the three-party evolutionary game model, using the replication dynamic equation to analyze the evolution process of the three actors, and studies the influence of parameter change on the strategy selection of each agent. Finally, the simulation is carried out by Matlab. The results show that the strategies are affected by the government’s punishment, the “free ride” revenue of suppliers and manufacturers, and the cost of carbon emission reduction investment. Finally, based on the analysis results, some suggestions are put forward for enterprises to invest in carbon emission reduction.
Study on the dilemma and Countermeasures of rural environmental pollution control under the background of Rural Revitalization Strategy
Authors: Han Xiaojuan
Published: February 2021

Environmental pollution has been the focus of attention in recent years. The 19th National Congress of the Communist Party of China put forward the strategy of rural revitalization, which pointed out that we should adhere to the harmonious coexistence of man and nature. Under the background of Rural Revitalization Strategy, we should improve the rural living environment and accelerate the transformation and upgrading of agriculture. We should establish and improve the rural environmental governance system, realize the construction of ecological civilization, and adhere to the implementation of green development and innovative development. Based on the background of Rural Revitalization Strategy, taking YZ town as an example, this paper analyzes the difficulties of rural environmental pollution control, such as weak awareness of environmental pollution control, low efficiency of environmental protection funds, and puts forward corresponding countermeasures.
Public Space Sharing Strategies for Youth Education Building
Authors: Lin Misheng , Wang Yang
Published: February 2021

Education building can be activated by space sharing strategies to satisfy the large demand of outside school education needs. The public space of youth education building has a more flexible social adaptability than the full-time school. Through case collection, data research, statistical analysis methods, design elements of public space of youth education buildings are studied. Based on the consideration of design elements, the spatial layout modes and design strategies are summarized. These results are helpful for the similar space design in outside school education buildings.
Comprehensive Exploration and three-dimensional construction technology of water plug based on directional horizontal drilling caved column
Authors: Tian Gan
Published: February 2021

The ordovician limestone water inrush accident occurred during the excavation of 8228 working face in Tashan Coal Mine, Tongmei Group. On the basis of comprehensive geophysical exploration above and below the well, in order to find out the development boundary of the water flowing subsided column and the distribution characteristics of the broken body filled in it, and to control the subsided column by Grouting, the development boundary, the influence zone, the cementation of the fractured body and the distribution characteristics of the water flowing subsided column are found out by means of multi-layer and multi-branch surface directional horizontal drilling speed logging, drilling fluid leakage, cuttings logging and logging while drilling, and combined with data statistical analysis. The length and short axis of the collapse column is 410m - 200m, and the broken area is mainly distributed in the right front of the driving head of the belt roadway near the water inrush roadway. The 3d geological modeling of the spatial structure and development characteristics of the collapse column is carried out by using SURPAC software, and the main passageway area, fracture area and secondary fracture area are divided according to the crushing degree of the collapse column filling material. In view of the different zones of the collapse column broken body, the directional horizontal drilling control technology and the three-dimensional block grouting technology are used to construct the separate zones of the grouting technology. The safe mining of the working face is finally realized by the comprehensive treatment of cutting the source and reinforcing the water-flowing collapse column. The comprehensive exploration and treatment technology of directional horizontal drilling multi-branch collapse column provides a good reference for other similar projects.
Study on the influence of radius of curvature on flow resistance in spiral pipe
Authors: Li Wenqiang , Qi Hui , Yang Yongfeng , Zhao Guojun , Liu Rong , Wang Haonan
Published: February 2021

With the continuous development of west of China, a new kind of tunnel, namely spiral tunnel, has appeared in the expressway. Due to the special linear pattern, the resistance of airflow in spiral tunnel has been found to change, but there are few relevant researches at present. Therefore, numerical calculation method is used to study the variation of flow resistance in spiral pipe with different curvature. The results show that when the fluid flows in the spiral pipe, the wind speed is not uniformly distributed. The highest speed is not in the center of the pipe, but on the outside of the pipe, and the offset distance decreases with the increase of the radius of curvature. In addition, the change of flow resistance in spiral pipe is studied, and it is found that the change rate of flow resistance decreases with the increase of curvature radius. It shows that the radius of curvature is negatively correlated with the flow resistance.
Typology in Vernacular Architecture—Qianmo Tower Post Station in Mingyue Village
Authors: Li Yunzhang , Zhu Yuhong , Yu Lirong , Bi Zhongsong , Huang Guanjun
Published: February 2021

The acceleration of the modernization process has promoted the improvement of rural residential construction technology and efficiency, but the rural buildings have not inherited and developed the regional traditional characteristics on this basis, instead, there has been a blind trend of urban architectural styles in different regions, resulting in a phenomenon of the homogenization of development. The design of qianmota post station uses the typological analysis method to excavate and inherit the characteristics of the local traditional buildings in Mingyue village, then combines the characteristics with new technologies and materials to restore the local architecture in the hearts of the villagers in Mingyue village. It is restored in two aspects: the architectural appearance of the traditional houses in Western Sichuan and the spiritual symbol of the church.
Research on Comprehensive Evaluation Methods of Existing Public Buildings Based on Diamond Evaluation Method
Authors: Yubo Gao , Mingwei Mao
Published: February 2021

Based on the analysis of characteristics of existing public buildings, a comprehensive method based on the diamond evaluation is established, which is integrated by the physical performance and the user’s physical experiences. The method combines objective and subjective evaluations. It can divide the comprehensive value of existing public buildings in four aspects: function, economy, satisfaction, and value. Then, it explores the process and technical route of the existing public buildings using the analytic hierarchy of comprehensive evaluation. The article intends to use this method to conduct an comprehensive evaluation of Taiyuan Workers’ Cultural Palace.
Design of the three-forked-shape pedestrian landscape cablestayed bridge with egg-shape arch tower
Authors: Li Biqing , Li Jinbao , Xu Jinfa
Published: February 2021

According to the landscape requirements of the pedestrian cable-stayed bridge of the three-forkedshape canyon, this paper puts forward a kind of pedestrian landscape cable-stayed bridge with egg-shape arch bridge tower, and two kinds of spatial curve design elements are introduced, which are egg-shape arch bridge and three-forked-shape curved bridge deck. The cultural connotation of three-forked-shape canyon has been greatly improved. Combined with the actual project, the engineering parameters are designed and the Midas finite element analysis model is established, static analysis and dynamic modal analysis were carried out, it verified that the three-forked-shape pedestrian landscape cable-stayed bridge with egg-shape arch bridge tower has good mechanical performance.
Research on Failure mechanism and Reinforcement Technology of Shangmaji Weir
Authors: Ma Jia-Bao , Liu Xue-Ying , Yao Jian-Feng
Published: February 2021

After the reinforcement and repair of the Shangmaji weir in Wanyao Irrigation District of Jiangshan City in 2014, the results of the repair did not improve much. The surface layer of the weir fell off, these not only affected the drainage function of the weir, but also the appearance was different from what is now advocated “Green ecology” is incompatible. This paper analyzes the causes of damage to this problem, and obtains two solutions: drilling, grouting, vertical paving, and to extend the width of receiving water step. After adopting the research programme, the degree of shedding of pebbles is greatly reduced, and the strength of the weir is significantly increased.
Influence of Silica Fume Content on Performance of High - Performance Concrete
Authors: Zhang Heng-Yuan , Liu Xue-Ying , Wei Dan-Feng
Published: February 2021

The influence of different silica fume content on the slump, expansion, compressive strength and flexural strength of high-performance concrete was studied. The results show that with the increase of silica fume content, the slump, expansion, compressive strength, and flexural strength of high-performance concrete show a trend of increasing first and then decreasing. The optimal silica fume content of HPC(Highperformance concrete) is 3% to 6%.
Investigation and Research on Building Diseases in Yueliangdi Village, Yinggebao Township, Mulei Based on GIS and Infrared Thermal Imaging Technology
Authors: Zhang Baoqing
Published: February 2021

In this paper, the representative buildings built in different periods of the village are observed and their types and conditions are recorded according to the phenomenon that the defects and diseases of the local historical settlements are increasingly serious due to blind transformation and excessive commerce in the protection work of moon village in Mulei County, Xinjiang. Then, the main building diseases of moon village are studied based on the theory of architectural pathology and GIS platform The coupling relationship with local microclimate, and the degree of disease of the village houses are classified into three categories: light, medium and severe diseases. Based on the analysis of the change of macro climate and local microclimate conditions in the South and north of the East Tianshan Mountains, it is concluded that the main reason for the defect is the damp disease. The infrared thermal imaging technology is introduced to analyze the damp disease in the settlement, and the preliminary judgment method of the damp disease is obtained, which should be paid attention to in the future protection work.
Regional Human Settlement Environmental Ethical Features of Dayi Liu’s Manor in the Western Sichuan Plain
Authors: Luo Ziwei , Xie Wenfeng , Wang Guohua
Published: February 2021

Manors are the most representative human settlements in the history of Western Sichuan, with complete regional tradition and ethical order. As a protective heritage in the revitalization and development of rural areas, manors have been recognized as construction achievements for their artistic and practical references. This paper starts from the perspective of human settlement environmental ethics, focusing on the environmental ethical order between the microcosm of the residential environment of Liu’s Manor and the macrocosm of the regional pattern of the Western Sichuan Plain. The result shows that the environment characteristics of Liu’s manor, under the regional settlement pattern, actually are the images of human subjective ethical choice; gathering in an ideal environment, dispersing to the origin, and the integration of classical styles. On this basis, this study proposes a means through which to realize sustainable development in rural settlement construction in the process of modernization in China.
Analysis on the Human Settlement Environment of Huizhou Ancient Villages Based on the Heritage of Ancient Roads - a Case Study of Chengkan Village
Authors: Bi Zhongsong , Chen Chun , Li Yunzhang , Cheng Peng
Published: February 2021

The ancient road cultural route is an important part of Huizhou cultural heritage, which is closely related to Huizhou tradition. Huizhou ancient villages are important historical and cultural heritage. The important features of their locations and layouts are the high integration with nature, forming a traditional residential environment pattern of “backing mountain, surrounding water and facing screen”. From the perspective of Huizhou Ancient Road, this paper selects Chengkan ancient village, which is an important cultural route of “Shuyuan Lingshan Chengkan ancient road”, as the research object, and takes the construction of human settlements as the main research content. From the natural environment and cultural background, and the formed human environment as the starting point, the paper focuses on the village agglomeration spatial pattern, the village water system, the street space environment, the architectural environment and the Shuikou landscape environment to analyze the characteristics and concepts of traditional residential environment construction in Huizhou ancient villages represented by Chengkan village, so as to make a beneficial discussion on the regional rural revitalization, the protection and development of traditional village human settlement environment.
Optimization of urban scenic spot planning based on ecological chain and reversed-planning theory—Using Yunlong Lake in Xuzhou city as an example
Authors: Zhang Lan , Zhao Difei , Li Rui , Chen Yingxing
Published: February 2021

Modernized urban organization relies more on the foundation of ecological infrastructure (EI) with the planning objectives based more on synthetical benefits of economy, society and ecological environment. The effect of multiple factors ought to be taken into consideration in the urban scenic spot planning and and the process of formulating the related plan faces a challenge of how to organically bound environmental factors to tour function of urban scenic spot. This thesis, taking YunLong Lake, a scenic spot in XuZhou, JiangSu province as an example, studies how to ameliorate the planning of urban scenic spot combined with the ecological chain and reversed-planning theory. The result shows that utilizing the theory flexibly when analyzing the urban scenic spot planning design can ensure the existing ecological connection between each system and maintain the ecological stability of urban scenic spot. Thus, with the basis of ecological chain and reversed-planning theory, this paper puts forward a new planning concept and work flow, in order to provide new ideas for modernized urban scenic spot planning.
Orthopädische Schuhtechnik
Authors: Greitemann Bernhard , Schievink Frank
Published: February 2021

Orthopädieschuhtechnische Versorgungen sind weiter ein unersetzlicher Bestandteil der konservativen und postoperativen Therapie in der Orthopädie und Traumatologie. Sie lassen sich grob in die Bereiche Einlagenversorgung, Schuhrichtungen und Maßschuhversorgung unterteilen. Die wesentlichen Prinzipien der Orthopädieschuhtechnik und einzelne Versorgungsbeispiele werden in diesem Artikel vorgestellt.
Versorgung eines Kindes mit persistierender pulmonaler Hypertonie
Authors: Hamburger Nadine
Published: February 2021

Die persistierende pulmonale Hypertonie bei Neugeborenen ist ein schweres Krankheits-bild in der Neonatologie, das schnell lebensbedrohlich werden kann. Es braucht kompetente Pflegende, um die betroffenen Neugeborenen richtig zu versorgen. Der folgende Beitrag widmet sich ausführlich dieser Erkrankung und zeigt auf, welche pflegerischen Kompetenzen bei der Behandlung notwendig sind.
Struktur der Hautkliniken und dermatologische Lehre in den neuen Universitäten in Deutschland
Authors: Zouboulis C. C. , Geilen C. C. , Grunewald S. , Kauczok C. , Raap U. , Sander C. , Sárdy M. , Schultz E. , Stadler R. , Welzel J.
Published: February 2021

Im Zuge der Neugründung medizinischer Fakultäten in Deutschland muss auch die dermatologische Forschung und Lehre aufgebaut werden. Diese großen Zusatzaufgaben neben der Krankenversorgung stellen eine Herausforderung für die Klinikleitungen dar. In diesem Übersichtsbeitrag beschreiben exemplarisch Chefärztinnen und Chefärzte neuer Universitätshautkliniken und dermatologischer Fachabteilungen die Auswirkungen, die die Umwandlung in eine Universitätsklinik auf die Forschung und Lehre sowie den klinischen Alltag mit sich gebracht hat.
Prediction of Behavioral T/C Levels in Cochlear Implant Patients Based Upon Analysis of Electrode Impedances
Authors: Zarowski A. , Molisz A. , Cardinael E. , Vermeiren A. , Theunen T. , De Coninck L. , Theuwis L. , Siebert J. , Offeciers F.E.
Published: February 2021

Abstract Background Fitting cochlear implants in babies and noncooperative patients is cumbersome and time consuming. Therefore, objective parameters have been sought in order to predict the subjective threshold (T) and maximum comfort (C) levels. Measurements
of the electrically evoked compound action potentials (ECAPs) have been widely used for this purpose, yet the correlation between these objective measures and the subjective T/C levels is weak to moderate. Purpose This article aims (1) to evaluate correlations between the subjective
parameters of the fitting maps such as thresholds (T level) and maximum comfort levels (C level), the impedance of the electrode contacts, and the ECAP thresholds, and (2) to compare the value of the electrode impedances and the ECAP measures for prediction of the T/C levels. Research
Design Case review study in a quaternary otologic referral center. Study Sample Ninety-eight consecutive CI patients were enrolled. The average age of the patients was 49 years. All patients were users of the Nucleus 24RECA (Freedom, Contour Advance-of-Stylet electrode)
cochlear implant. Data Collection and Analysis Data on impedance of the electrode contacts and the behavioral T/C levels at the first fitting session (2‐5 weeks after surgery) and at the 5th fitting session (4‐6 months after surgery) have been retrospectively
collected in 98 consecutive CI patients. Additionally, the intraoperative impedance values and the ECAP thresholds (tNRT) have been recorded. Results Impedances of electrode contacts show significant strong negative correlations with the stabilized T/C levels at 4 to 6 months
after implantation and are an important predictor for the behavioral T/C levels. They can explain R 2 = 28 to 41% of the variability of the behavioral T/C levels. In multiple regression analysis electrode contact impedances can explain twice as much of the variability
of the stabilized T/C levels than the tNRT values. The electrode impedances together with the tNRT values are able to explain R 2 = 37 to 40% of the global variability of the T/C levels while the tNRT thresholds solely are able to explain only R 2 = 5
to 14% of the T/C levels variability. Conclusion Impedances of electrode contacts correlate strongly with the stabilized behavioral T/C levels and may be used as an objective measure for fitting of cochlear implants.
Web-Based Survey on Depression and Anxiety during COVID-19 Pandemic in View of Homoeopathic Perspective
Authors: Gupta Vishwa Kumar , Mohanty Niranjan , Sahoo Amulya Ratna , Choudhury Sujata , Nayak Chintamani
Published: February 2021

Background The World Health Organisation (WHO) declared coronavirus disease 2019 (COVID-19) as a global pandemic February 2020 after it emerged from Wuhan city of China and spread to most of the world. The most common psychological symptoms found during the pandemics are fear, anxiety, loss of sleep, depression, suicidal tendency, etc.

Aim To collect various psychological symptoms, the people are presenting during this type of situations and their proposed homoeopathic treatment.

Methodology A web-based survey was conducted to assess the mental health burden in public during the outbreak of COVID-19 pandemic and also to explore the potential influencing factors. The data of 314 volunteers were collected and assessed.

Results It was found that the overall proportion of depression and anxiety was 34.4 and 31.21% respectively. About 23.9% of participants had both depression and anxiety. The proportion of depression and anxiety was more in males and age group of 21 to 30 years. Healthcare providers reported more depression and anxiety as compared with other occupations. Among the influencing factors, regular Yoga practice and adequate sleep of 7 hours in the day had good effects in controlling depression and anxiety. Spending time in social media for more than 3 hours a day regularly was also an influencing factor for more depression and anxiety. It was also found that people who frequently got worried about their own health and of near and dear ones had developed more anxiety. The participants who had taken homoeopathic medicines during last month reported less depressive symptoms in comparison to others.

Conclusion Homoeopathy has many remedies which can relieve these psychological symptoms as the principle of homoeopathy is based on individualisation which constitutes the physical as well as the mental sphere.
Total Ankle Replacement Requiring Distal Tibiofibular Arthrodesis in a Dog
Authors: Burton Neil J. , Krukowski Maciej
Published: February 2021

This case report describes distal tibiofibular arthrodesis as a technique for achieving increased confluent bone support for the placement of oversized arthroplasty components for talocrural arthroplasty in an 18-month-old Labrador Retriever with talocrural osteoarthritis secondary to talar osteochondrosis. Computed tomography assessment for suitability for BioMedtrix canine ankle replacement surgery revealed the tibia to be undersized relative to the tibial component. Distal tibiofibular arthrodesis was performed to increase lateral bone support to permit placement of an otherwise oversized prosthesis. Subjective assessment of outcome with owner Liverpool Osteoarthritis in Dogs questionnaire to 6 months postoperatively as well as radiological assessment to 4 months postoperatively documented significant improvement in lameness in the operated limb with no complications. Distal tibiofibular arthrodesis is a means by which to achieve increased bone support prior to BioMedtrix canine total ankle replacement surgery. The surgical technique described herein permitted placement of an oversized talocrural prosthesis in this patient with good clinical function. This technique may permit use of this arthroplasty system in otherwise undersized patients until such a time that smaller implants are available from the manufacturer.
Senkrechtstarterin 2020: David gegen Goliath
Authors: Heeser Alexandra
Published: February 2021

Katharina Jünger gründete mit 24 Jahren – direkt nach bzw. noch während der Uni – ihr eigenes Telemedizin-Unternehmen. TeleClinic ist heute Deutschlands führende Online-Arztplattform und wurde jüngst an den DocMorris-Mutterkonzern verkauft. Die Businessfrau und Mutter bleibt CEO. Dafür hat die Thieme Group sie gemeinsam mit dem Club der Gesundheitswirtschaft zur „Senkrechtstarterin 2020“ gekürt.
Rochade in der DKG: Rollentausch an der Spitze der Krankenhausgesellschaft
Authors: Heeser Alexandra
Published: February 2021

Seit 1. Januar ist der Diplom-Kaufmann Ingo Morell neuer Präsident der Deutschen Krankenhausgesellschaft (DKG). Der seit 2012 das Amt des Vizepräsidenten bekleidende gebürtige Rheinländer folgt Dr. Gerald Gaß nach, der ab 1. April als Hauptgeschäftsführer die Geschicke des Krankenhausverbandes lenkt. kma spricht mit Morell, dessen Wunsch zum Amtsantritt ein einfacher ist: Corona in den Griff zu bekommen und zu einem weitgehend „normalen Leben“ zurückzufinden.
Debatte um Impfpflicht: Bessser ohne Zwang
Authors: Doelfs Guntram
Published: February 2021

Die Debatte um eine Corona-Impfpflicht des medizinischen Personals in Krankenhäusern ist zu Jahresbeginn voll entbrannt. Bundesgesundheitsminister Jens Spahn lehnt eine Impfpflicht weiterhin ab. Aus gutem Grund, denn eine Impfpflicht des klinischen Personals ist derzeit rechtlich kaum umsetzbar, so Arbeitsrechtlerin Inka Müller-Seubert im Interview mit kma.
Innovationsmanagement: Mit langem Atem Neues entwickeln
Authors: Orth Anne
Published: February 2021

Kliniken, die Trends und Entwicklungen voraussehen und mitgestalten, können im Wettbewerb um Patientinnen und Patienten sowie um Fachkräfte besser mithalten. Auf Innovationen wird an vielen Krankenhäusern Wert gelegt; über eine systematische und zielgerichtete Strategie verfügen jedoch nur wenige. Eines davon ist das Universitätsklinikum Dresden: Dort treiben die Mitarbeiterinnen einer neu geschaffenen Stabsstelle das Innovationsmanagement voran.
Das Patientenzimmer der Zukunft: Kluge Klinikarchitektur gegen Keime
Authors: König Romy
Published: February 2021

In einem Verbundprojekt tüfteln Architekten, Hygieniker und Mikrobiologen an einem neuen Patientenzimmer. Es soll so eingerichtet sein, dass sich Krankheitskeime darin weniger stark ausbreiten können. Das Neue: Als Grundlage dienen Daten aus der Mikrobiomforschung.
Two-level iterative solver for linear response time-dependent density functional theory with plane wave basis set
Authors: Liu Jie , Hu Wei , Yang Jinlong
Published: February 2021

We present a two-level iterative solver for linear response time-dependent density functional theory by combining two forms of the Casida equation in the Kohn–Sham orbital representation and in Hutter’s formulation. This two-level iterative solver has been implemented with the plane wave pseudopotential method for excited-state simulations of molecular and low-dimensional solid materials. Numerical studies with the Davidson algorithm demonstrate that this two-level iterative solver yields excited-state properties for molecules (benzene C6H6 and fullerene C60) and low-dimensional semiconductors [two-dimensional molybdenum disulfide MoS2 monolayer and rutile titanium dioxide TiO2(110) surface] with significantly reduced computational cost and storage requirement compared with standard iterative algorithms. We apply our approach to investigate the photoinduced charge separation of methanol molecules adsorption on the rutile TiO2(110) surface from the exciton perspective and validate that the photogenerated hole can be captured by methanol molecules.
High responsivity InGaAsSb p–n photodetector for extended SWIR detection
Authors: Shafir I. , Snapi N. , Cohen-Elias D. , Glozman A. , Klin O. , Weiss E. , Westreich O. , Sicron N. , Katz M.
Published: February 2021

A molecular beam epitaxy-grown InGaAsSb p–n photodetector lattice matched to GaSb for extended short wave infrared is reported. Electrical and optical characteristics were analyzed at temperatures from 200 K to room temperature. The photodetectors exhibit dark current densities of 2.9 × 10−6 A/cm2 at 200 K and 4.6 mA/cm2 at 300 K (−0.1 V bias) and a high quantum efficiency of 73% at room temperature under front side illumination. High detectivity (D*) values of 2.2 × 1010 cm·Hz1/2 W−1 and 7.4 × 1011 cm·Hz1/2 W−1 were observed at 200 K and room temperature, respectively.
Why coronavirus survives longer on impermeable than porous surfaces
Authors: Chatterjee Sanghamitro , Murallidharan Janani Srree , Agrawal Amit , Bhardwaj Rajneesh
Published: February 2021

Previous studies reported that the drying time of a respiratory droplet on an impermeable surface along with a residual film left on it is correlated with the coronavirus survival time. Notably, earlier virus titer measurements revealed that the survival time is surprisingly less on porous surfaces such as paper and cloth than that on impermeable surfaces. Previous studies could not capture this distinct aspect of the porous media. We demonstrate how the mass loss of a respiratory droplet and the evaporation mechanism of a thin liquid film are modified for the porous media, which leads to a faster decay of the coronavirus on such media. While diffusion-limited evaporation governs the mass loss from the bulk droplet for the impermeable surface, a much faster capillary imbibition process dominates the mass loss for the porous material. After the bulk droplet vanishes, a thin liquid film remaining on the exposed solid area serves as a medium for the virus survival. However, the thin film evaporates much faster on porous surfaces than on impermeable surfaces. The aforesaid faster film evaporation is attributed to droplet spreading due to the capillary action between the contact line and fibers present on the porous surface and the modified effective wetted area due to the voids of porous materials, which leads to an enhanced disjoining pressure within the film, thereby accelerating the film evaporation. Therefore, the porous materials are less susceptible to virus survival. The findings have been compared with the previous virus titer measurements.
Indium segregation in ultra-thin In(Ga)As/GaAs single quantum wells revealed by photoluminescence spectroscopy
Authors: Maidaniuk Y. , Kumar R. , Mazur Yu. I. , Kuchuk A. V. , Benamara M. , Lytvyn P. M. , Salamo G. J.
Published: February 2021

A nondestructive approach is described that is applicable for studying the In-segregation phenomena in ultra-thin In(Ga)As/GaAs nanostructures grown by molecular beam epitaxy. The proposed method utilizes only the experimental photoluminescence (PL) spectroscopy data and the effective bandgap simulation of specially designed ultra-thin In(Ga)As/GaAs nanostructures. On the example of InAs and In0.25Ga0.75As quantum wells with thicknesses of 1 monolayer (ML) and 4 MLs, respectively, a good correlation for the In segregation coefficient obtained from the proposed method and STEM (scanning transmission electron microscope) Z-contrast cross section imaging is demonstrated. However, PL has a significant advantage over STEM for being a nondestructive, reliable, and rapid technique for measuring multiple samples or large areas. Furthermore, tuning of In segregation in ultra-thin In(Ga)As/GaAs nanostructures, as well as the possibility of modifying and controlling the In depth-distribution profile by the change of growth temperature or the thickness of the low-temperature GaAs capping layer, are additionally demonstrated. A detailed analysis of indium segregation allows the design and precise growth of ultra-thin In(Ga)As/GaAs nanostructures for lasers, solar cells, and infrared photodetectors.
Ultra-short pulse generation from mid-IR to THz range using plasma wakes and relativistic ionization fronts
Authors: Nie Zan , Wu Yipeng , Zhang Chaojie , Mori Warren B. , Joshi Chan , Lu Wei , Pai Chih-Hao , Hua Jianfei , Wang Jyhpyng
Published: February 2021

This paper discusses numerical and experimental results on frequency downshifting and upshifting of a 10 μm infrared (IR) laser to cover the entire wavelength (frequency) range from λ = 1 to 150 μm (ν = 300–2 THz) using two different plasma techniques. The first plasma technique utilizes frequency downshifting of the drive laser pulse in a nonlinear plasma wake. Based on this technique, we have proposed and demonstrated that in a tailored plasma structure, multi-millijoule energy, single-cycle, long-wavelength IR (3–20 μm) pulses can be generated by using an 810 nm Ti:sapphire drive laser. Here, we extend this idea to the THz frequency regime. We show that sub-joule, terawatts, single-cycle terahertz (2–12 THz or 150–25 μm) pulses can be generated by replacing the drive laser with a picosecond 10 μm CO2 laser and a different shaped plasma structure. The second plasma technique employs frequency upshifting by colliding a CO2 laser with a rather sharp relativistic ionization front created by ionization of a gas in less than half cycle (17 fs) of the CO2 laser. Even though the electrons in the ionization front carry no energy, the frequency of the CO2 laser can be upshifted due to the relativistic Doppler effect as the CO2 laser pulse enters the front. The wavelength can be tuned from 1 to 10 μm by simply changing the electron density of the front. While the upshifted light with 5<λ(μm)<10 propagates in the forward direction, that with 1<λ(μm)<5 is back-reflected. These two plasma techniques seem extremely promising for covering the entire molecular fingerprint region.
In situ electromagnet with active cooling for real-time magneto-optic Kerr effect spectroscopy
Authors: Brozyniak A. , Mendirek G. , Hohage M. , Navarro-Quezada A. , Zeppenfeld P.
Published: February 2021

We present a compact in situ electromagnet with an active cooling system for use in ultrahigh vacuum environments. The active cooling enhances the thermal stability and increases the electric current that can be applied through the coil, promoting the generation of homogeneous magnetic fields, required for applications in real-time deposition experiments. The electromagnet has been integrated into a reflectance difference magneto-optic Kerr effect (RD-MOKE) spectroscopy system that allows the synchronous measurement of the optical anisotropy and the magneto-optic response in polar MOKE geometry. Proof of principle studies have been performed in real time during the deposition of ultra-thin Ni films on Cu(110)-(2 × 1)O surfaces, corroborating the extremely sharp spin reorientation transition above a critical coverage of 9 monolayers and demonstrating the potential of the applied setup for real-time and in situ investigations of magnetic thin films and interfaces.