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Evaluation of Modified Early Warning Score Combined with Procalcitonin and D-Dimer in the Early Diagnosis and Prognosis of Sepsis in the Elderly
Issue:
Volume 10, Issue 4, August 2022
Pages:
204-208
Received:
15 May 2022
Accepted:
17 June 2022
Published:
27 June 2022
DOI:
10.11648/j.sd.20221004.11
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Abstract: Objective To explore the value of modified early warning score (MEWS) combined with procalcitonin (PCT) and D-Dimer (D-D) in evaluating the condition and prognosis of elderly patients with sepsis. Methods A retrospective study was conducted to collect the data of elderly patients (aged ≥ 60 years) who were hospitalized in Shanghai Fifth rehabilitation hospital and diagnosed with sepsis from January 2016 to June 2020. The MEWS score at admission, PCT, D-D, sequential organ failure score (SOFA) within 24 hours and the 28 day prognosis were recorded. The patients were divided into groups according to the severity of the disease and the 28 day prognosis, and the index differences among the groups were compared; To analyze the prognostic value of the above indexes alone or in combination in elderly patients with sepsis. Results 105 patients were divided into sepsis group (75 cases) and septic shock group (30 cases); According to the 28 day prognosis, the patients were divided into survival group (71 cases) and death group (34 cases). The scores of MEWS, PCT, D-D and SOFA in septic shock group were significantly higher than those in sepsis group (all P < 0.05). The scores of MEWS, PCT, D-D and SOFA in the death group were significantly higher than those in the survival group (all P < 0.01). ROC curve analysis showed that the area under the ROC curve (AUC) of MEWS score, PCT, D-D, SOFA score and MEWS+PCT+D-D score were 0.662, 0.683, 0.626, 0.698 and 0.720 respectively, indicating that all indicators have a certain predictive value for the 28d prognosis of elderly patients with sepsis, and the combination of the three has the greatest predictive value. Conclusion MEWS score is a convenient and rapid scoring system. It can evaluate the condition and prognosis of elderly patients with sepsis together with PCT and D-D.
Abstract: Objective To explore the value of modified early warning score (MEWS) combined with procalcitonin (PCT) and D-Dimer (D-D) in evaluating the condition and prognosis of elderly patients with sepsis. Methods A retrospective study was conducted to collect the data of elderly patients (aged ≥ 60 years) who were hospitalized in Shanghai Fifth rehabilitat...
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Study on Engineering Properties of Alkali-Activated High-Flow Concrete
Chang-Chi Hung,
Zheng Wei Guo,
Her-Yung Wang
Issue:
Volume 10, Issue 4, August 2022
Pages:
209-216
Received:
18 May 2022
Accepted:
27 June 2022
Published:
29 June 2022
DOI:
10.11648/j.sd.20221004.12
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Abstract: Furnace slag is an inevitable by-product of the steelmaking process, and the reuse of furnace slag resources is also an international trend. We used blast furnace slag powder as the alkali excitation material in this study. The alkali-activated binder is mixed with coarse and fine aggregates to form alkali-activated concrete. To meet the high-flow performance of alkali-activated pozzolanic concrete (AAPC), added the plasticizer in a proportion of 1.25%. The concrete was well mixed using a fixed base modulus ratio (Ms), three different liquid-solid ratios (LS) of 0.45, 0.50, and 0.55, and three different normalities (N) of sodium silicate solution of 5%, 6%, and 7% and remained them in the atmosphere. At 7, 28, and 56 days of age, carrying out the engineering properties tests such as hardness, durability, and mechanical properties, and using microscopic to verify the test data. The results show that the slump of AAPC is 550mm to 650mm, which has a longer setting time than the general proportion of concrete, but it has better workability. The high liquid-solid (LS) ratio influences engineering properties significantly, confirming that the proper LS ratio and the normality can improve the hardening properties and durability of high-fluidity AAPC. When the LS ratio=0.45 and the N is 7%, the interface of the furnace slag can destroy through more sodium silicate solution, and the polymerization behavior can stimulate. At 28 days, the compressive strength can reach 29.8Mpa, and the initial ultrasonic wave speed reach more than 3000m/s, which can meet the needs of engineering use.
Abstract: Furnace slag is an inevitable by-product of the steelmaking process, and the reuse of furnace slag resources is also an international trend. We used blast furnace slag powder as the alkali excitation material in this study. The alkali-activated binder is mixed with coarse and fine aggregates to form alkali-activated concrete. To meet the high-flow ...
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Major Ion Geochemistry and Source Mechanism of the Hongfanchi Spring Area, Jinan, China
Li Jinzhen,
Sun Tianhe,
Jiang Zhenguo,
Wang Jilin,
Jin Lijie,
Yu Chunnan
Issue:
Volume 10, Issue 4, August 2022
Pages:
217-223
Received:
15 July 2022
Accepted:
6 August 2022
Published:
9 August 2022
DOI:
10.11648/j.sd.20221004.13
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Abstract: Hongfanchi spring area is one of the most important areas of Jinan spring group, and the hydrochemical characteristics and material source mechanism are of great significance for the reasonable development and protection of the spring area. In this study, the water sampling sites were arranged in the typical spring water and the confluent surface water, and the contents of major ion geochemistry were analyzed. The research methods of such as: statistical analysis, Piper diagram, correlation analysis, cluster analysis, Gibbs diagram and mass conservation calculation were used to study the hydrochemical characteristics, and the source mechanism of major ion geochemistry in Hongfanchi spring area has been proposed for the first time. The results show that: the water in the Hongfanchi spring area were mainly with the hydrochemical type of HCO3·SO4-Ca; and the contents of K+, Na+, Mg2+, Cl-, F- in the spring water were much lower than that in the surface water, while the contents of Ca2+, SO42-, HCO3-, NO3- and TDS were obviously higher. The spring water was mainly affected by the carbonate weathering (62.91% - 73.10%) and the anthropogenic inputs (12.79% - 23.97%); while the surface water was affected by the carbonate weathering (36.03% - 60.91%), the evaporite dissolution (15.74% - 22.00%), the silicate weathering (11.28% - 16.81%) and the anthropogenic inputs (10.12% - 15.70%). The proportion of atmospheric inputs in both were very small.
Abstract: Hongfanchi spring area is one of the most important areas of Jinan spring group, and the hydrochemical characteristics and material source mechanism are of great significance for the reasonable development and protection of the spring area. In this study, the water sampling sites were arranged in the typical spring water and the confluent surface w...
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Research on the Integration of Aluminum Veneer Design and Construction from the Perspective of High Quality
Jia Yiming,
Ni Saixiong,
Chen Zhaorong,
Yao Zhiwei,
Zhi Sihua,
Fan Rui
Issue:
Volume 10, Issue 4, August 2022
Pages:
224-231
Received:
15 July 2022
Accepted:
7 August 2022
Published:
12 August 2022
DOI:
10.11648/j.sd.20221004.14
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Abstract: In order to improve the technical level of Shenzhen Construction Engineering Department in the high-quality application of aluminum materials, to ensure the perfect integration of scheme effects, architectural design, material selection, construction quality control and post-maintenance, and to promote high-quality aluminum veneer applications in high-quality, high-grade, high-efficiency construction of government projects, and to further promote the integration of design and construction; the research team organized inspections of 4 manufacturers and investigate of 17 typical cases from February to July 2022, the thickness, coating mode, coating thickness, coating performance, sealing material and durability of aluminum sheet were improved moderately; the article mainly summarizes the construction products, and improves the thickness of base material, coating performance, color difference, processing quality requirement, durability and physical performance index of aluminum profiles on the basis of national and industrial standards, the suitable space, sealing requirements and typical joint structure of aluminum sheet are emphasized, and the key material performance parameters of aluminum sheet material that should be indicated in the design drawings are defined, this paper summarizes the common practice of aluminum sheet in public construction projects, such as the specification of curtain wall components and accessories should be processed according to the technological requirements in the factory, it is necessary to set anti-slip and anti-slip measures when using the open fan with Hook in the safety measures, and some cases are listed to explain.
Abstract: In order to improve the technical level of Shenzhen Construction Engineering Department in the high-quality application of aluminum materials, to ensure the perfect integration of scheme effects, architectural design, material selection, construction quality control and post-maintenance, and to promote high-quality aluminum veneer applications in h...
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Optimization of Energy Saving Measures for Glass Curtain Wall of Super High Rise Buildings in Guangdong
Zhang Guoshen,
Cai Zhili,
Chen Zhaorong,
Bai Zhongkui,
Kang Jiusi
Issue:
Volume 10, Issue 4, August 2022
Pages:
232-241
Received:
15 July 2022
Accepted:
7 August 2022
Published:
12 August 2022
DOI:
10.11648/j.sd.20221004.15
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Abstract: In super high-rise curtain wall buildings, the energy consumption of air conditioning and lighting accounts for 60%-80% of the total energy consumption. Under the hot and humid climate conditions in Guangzhou, due to the strong influence of solar radiation, the configuration of glass curtain wall and shading system has contradictions in cooling, heating energy consumption and indoor lighting and lighting energy consumption, and the optimal configuration of glass curtain wall and shading system has not been well resolved. The purpose of this paper is to use Design Builder simulation software to conduct a case study of a typical super high-rise office building in Guangzhou, and to discuss the parameters of different boundaries and envelope structures. The different configurations of the building are discussed, and the energy consumption impact of building shading facilities is analyzed, and three optimization types of curtain wall glass, three types of shading methods, and six types of energy-saving measures for the combination of glass curtain wall and shading are proposed. Provide guidance and advice for designers in the early design of glass curtain wall buildings in Guangzhou area. The research results show that the comprehensive energy consumption can be reduced by 2.99% when the curtain wall glass and sunshade are optimally combined, and the economy can be saved by 20.48 million yuan.
Abstract: In super high-rise curtain wall buildings, the energy consumption of air conditioning and lighting accounts for 60%-80% of the total energy consumption. Under the hot and humid climate conditions in Guangzhou, due to the strong influence of solar radiation, the configuration of glass curtain wall and shading system has contradictions in cooling, he...
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Research on Dangerous Driving Behavior Detection Based on YOLOV5 Algorithm
He Jun,
Zhong Kejia,
Wu Shengke,
Liu Pengzhen
Issue:
Volume 10, Issue 4, August 2022
Pages:
242-247
Received:
19 July 2022
Accepted:
16 August 2022
Published:
17 August 2022
DOI:
10.11648/j.sd.20221004.16
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Abstract: Aiming at the problems of high cost, difficult implementation and low efficiency of preventing traffic accidents, this paper proposes a deep learning object detection algorithm based on yolov5, which realizes the detection of dangerous driving behavior. Firstly, the dangerous driving data set is labeled and segmented , and re-clustered by K-means method. Secondly, the Non-maximum suppression in yolov5 algorithm is optimized into full category Non-maximum suppression. Finally, the data set is put into the model for iterative training, and the optimal weight is taken. In the test set results, the average accuracy of this algorithm is 97.8%, the average detection time of each image is 8.1ms, and the model size is 13.7mb. Under the same data and experimental environment, this paper compares with the most common dangerous driving behavior detection algorithms such as SSD, yolov3 and yolov4. The results show that this algorithm is better than several common dangerous driving detection algorithms in accuracy, detection speed and model size. In the actual driving process, the algorithm applied in this paper can better meet the requirements of real-time detection and judgment accuracy. Because the model is smaller, the deployment cost in car is lower, and meets the actual requirements.
Abstract: Aiming at the problems of high cost, difficult implementation and low efficiency of preventing traffic accidents, this paper proposes a deep learning object detection algorithm based on yolov5, which realizes the detection of dangerous driving behavior. Firstly, the dangerous driving data set is labeled and segmented , and re-clustered by K-means m...
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Urban Renewal Polices in Macau: Development and Review
Issue:
Volume 10, Issue 4, August 2022
Pages:
248-254
Received:
23 July 2022
Accepted:
19 August 2022
Published:
29 August 2022
DOI:
10.11648/j.sd.20221004.17
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Abstract: Macau is a typical representative of the world's high-density cities and an important part of the world's cultural heritage. Therefore urban regeneration is a long-term issue in the construction and development of the Macau region. Since the return of Macau to China, it has been engaged in continuous practice and the construction of an urban renewal system in the areas of housing construction, historical and cultural heritage conservation and development, community renewal and renovation, and public participation. Based on the main policy documents of Macao, this study has applied a combination of literature search, case studies and inductive analysis to sort out the three stages of urban renewal development in the Macao region, and focuses on the changes made to Macau's current urban regeneration system in terms of urban regeneration concept, urban regeneration ideology, urban regeneration system and public participation system. Moreover, it analyse the implementation of the urban renewal system in Macao in the context of the urban renewal project of the Youhan seven buildings. Finally, it summarises the characteristics of the urban regeneration system in Macao and proposes the future direction of urban regeneration in the region. It is hoped that it can provide inspiration for optimising the urban renewal system in similar cities in the Mainland.
Abstract: Macau is a typical representative of the world's high-density cities and an important part of the world's cultural heritage. Therefore urban regeneration is a long-term issue in the construction and development of the Macau region. Since the return of Macau to China, it has been engaged in continuous practice and the construction of an urban renewa...
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The Building Structure of the New Crown Nucleic Acid Testing Laboratory Was Quickly Constructed Several Program Studies
Li Wenqi,
Chen Wurong,
Chen Zhaorong,
Su Yunsheng,
Cai Zhili,
Yin Ye,
Li Ruoyu
Issue:
Volume 10, Issue 4, August 2022
Pages:
255-262
Received:
28 July 2022
Accepted:
20 August 2022
Published:
29 August 2022
DOI:
10.11648/j.sd.20221004.18
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Abstract: Natural disasters, especially major infectious disease outbreaks, have brought very heavy disasters to human beings. The novel corona-virus pneumonia that broke out at the end of 2019 has spread to many countries around the world. It has been more than two years so far, and the world's public health security is facing great challenges. Faced with the urgent new demand for new crown testing, laboratory buildings must be fast, flexible and low-cost. This paper introduces the essential requirements for rapid laboratory construction, airflow control, negative pressure environment, and cleanliness under the emergency of COVID-19 testing, and discusses the traditional laboratory construction scheme and new modular air-film structure scheme for rapid laboratory construction at present., box-type container mode scheme; the innovation of the new modular air-film structure product developed has the characteristics of positive and negative pressure conversion, intelligent integration, and environmentally controllable features, which can meet the inherent requirements of the current nucleic acid virus detection, and can be used in A total of 370 Fire Eye laboratories (283 domestic and 95 international) have been launched in 37 countries and regions to help prevent and control the global epidemic.
Abstract: Natural disasters, especially major infectious disease outbreaks, have brought very heavy disasters to human beings. The novel corona-virus pneumonia that broke out at the end of 2019 has spread to many countries around the world. It has been more than two years so far, and the world's public health security is facing great challenges. Faced with t...
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Research on Indoor Thermal Environment Testing of Farmers and Herdsmen's Dwellings in Tongliao, Inner Mongolia in Winter
Li Xueping,
Li Jingjing,
Qin Luo
Issue:
Volume 10, Issue 4, August 2022
Pages:
263-269
Received:
26 July 2022
Accepted:
23 August 2022
Published:
29 August 2022
DOI:
10.11648/j.sd.20221004.19
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Abstract: In order to grasp the current situation of the indoor thermal environment in winter in Tongliao, Inner Mongolia, a representative dwelling was selected to conduct indoor and outdoor air temperature and humidity, solar radiation intensity, inner surface temperature of outer wall, kang surface temperature, flue outlet temperature and other thermal environment Parameter test, analysis based on temperature accumulation evaluation and PMV-PPD thermal evaluation system.the result shows:The thermal insulation performance of the external walls of residential buildings is poor, and the average radiation temperature is about 5°C lower than the air temperature, which is easy to cause cold radiation effects on the human body, and the indoor thermal comfort is low;The average temperature of the heated kang surface can reach 41.6°C, which is less safe;The temperature of the smoke outlet can reach up to 166.5°C, the heat loss is serious, and it is not used well;The average value of PMV of residents' vote on the predicted thermal sensation is -0.99, the predicted dissatisfaction percentage PPD is as high as 50%, and the indoor thermal environment needs to be improved.The conclusion can provide a basis for the improvement and sustainable development of the indoor thermal environment of farmers and herdsmen.
Abstract: In order to grasp the current situation of the indoor thermal environment in winter in Tongliao, Inner Mongolia, a representative dwelling was selected to conduct indoor and outdoor air temperature and humidity, solar radiation intensity, inner surface temperature of outer wall, kang surface temperature, flue outlet temperature and other thermal en...
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Exploration on the Integration of Integrated Design and Construction of Prefabricated Assembly from the Perspective of EPC Management
Cai Zhili,
Zhang Jichao,
Chen Zhaorong,
Chen Wurong,
Ke Biaozhi,
Zeng Changluo
Issue:
Volume 10, Issue 4, August 2022
Pages:
270-278
Received:
29 July 2022
Accepted:
23 August 2022
Published:
29 August 2022
DOI:
10.11648/j.sd.20221004.20
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Abstract: Prefabricated building is a new type of building structure, that is, the residential building is built by industrial production mode. It is a building built by prefabricating some or all components of the building in the factory, then transporting them to the construction site, and assembling the components through special machinery. From the perspective of EPC general contracting mode, this paper discusses the importance of multi line front integration to prefabricated buildings; The integration of design and construction of assembly integrated building is proposed; In combination with the actual engineering cases, the problems often encountered in the construction implementation process are integrated in the early design by considering the safety of the structure, the convenience of construction and the feasibility of bidding and procurement through the early design; This paper summarizes the countermeasures to the common problems in the construction of prefabricated buildings; Put forward the informatization 5D idea with high integration of BIM design and construction. Practice has proved that the integration of assembly integrated architectural design and construction can better control the high integration of project design, construction, information communication and product quality, accelerate the construction progress of the project, and ensure the physical quality of the project.
Abstract: Prefabricated building is a new type of building structure, that is, the residential building is built by industrial production mode. It is a building built by prefabricating some or all components of the building in the factory, then transporting them to the construction site, and assembling the components through special machinery. From the persp...
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