Search Results - Yu Xin

Although problem solving has been playing a critical role in the teaching and learning of mathematics in K-12 in many countries in the world, anecdotal evidence from mathematics classrooms shows that teachers are still facing challenges in designing mathematical tasks on problem solving for classroo...

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In order to overcome the time-consuming and laborious problems of artificial observation, we proposed an automatic detection method of abnormal behavior of fish school under low dissolved oxygen stress based on image processing and compressed sensing algorithm. Taking Cyprinus carpio as the research...

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Active distribution network (ADN) planning is crucial for achieving a cost-effective transition to modern power systems, yet it poses significant challenges as the system scale increases. The advent of quantum computing offers a transformative approach to solve ADN planning. To fully leverage the po...

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The treatment of pollution reduction and carbon reduction in Yongding River Basin involves many stakeholders. It is of great significance and value to analyze the pollution reduction and carbon reduction in Yongding River Basin by using game model, study different game scenarios and participants’ be...

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Ni-based coating by electrospark deposition was remelted by pulse laser equipment in order to remove cracks, holes and inclusion in the coating.The changes in microstructure and mechanical properties of the coating were investigated by SEM, XRD and frictional testing machine.Results showed that the...

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International food trade has become a key driving force of agricultural land-use changes in trading countries, which has influenced food production and the global environment. Researchers have studied agricultural land-use changes and related environmental issues across multi-trading countries toget...

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Objective: The aim of this study was to evaluate the efficacy of gene enhanced tissue engineering followed mosaicplasty in a goat model. Methods: An acute cylindrical defect 9 mm in diameter was created in the weight bearing area of the medial femoral condyle in a goat model. Thirty-six medial femor...

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Fruit of Chinese bayberry (Myrica rubra (Lour.) Sieb et Zucc) ‘Biqi’ culture were used in this study. The fruits were stored at the temperature of (21±1)℃, (11±1)℃ or (1±1)℃. By investigating the respiratory rate, ethylene production, POD, PG, soluble pectin and cellulose during the storage, the con...

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BackgroundMetabolic dysregulation has been identified as contributing to colorectal cancer (CRC) development. However, there is a lack of data regarding the association between lifestyle factors and metabolic diseases in CRC patients.MethodsWe conducted a multi-center cross-sectional study including...

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Through analyzing the interaction between socio-economic benefits and eco-environment benefits of land use, a dynamic coupling model between land use benefits was set up according to the theory and method of system science. Coupling degree was used to express coordinated relationship of land use ben...

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There are many influential factors which jointly determine the output of grain production. Applying the basic principles of rough set theory to data analysis and decision, this paper analyzes the output of grain system in Zhejiang province. The dominant factors have been found out, which are conside...

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Background and aimsThe effects of Tenofovir Disoproxil Fumarate (TDF) or Tenofovir Alafenamide (TAF) on lipid profiles have been observed in chronic hepatitis B (CHB) treatment. However, the metabolic features and their impact on cardiovascular risk remain unclear. We conducted a systematic review a...

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Background: Surgical excision of basal cell carcinoma (BCC) in aesthetic facial regions (e.g., nasal, periocular) risks disfiguring scars and functional deficits, particularly for elderly patients with surgical contraindications or extensive lesions where complete tumor clearance proves challenging....

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Background: Emerging evidence indicates a potential association between aberrant expression of GIPC PDZ Domain Containing Family member 2 (GIPC2) and the progression of colorectal cancer (CRC). However, the detailed characteristics of GIPC2 expression and its prognostic implications in CRC remain to...

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In the model of rats with noise stress, the expression of Fos protein in brain was examined by immunohistochemical method during the chronic stress process. The results showed that the peak expression of Fos in paraventricular nucleus (PVN), supraoptic nucleus (SON) and locus coeruleus (LC) of hypot...

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Chloroplast is a discrete, highly structured, and semi-autonomous cellular organelle. The small genome of chloroplast makes it an up-and-coming platform for synthetic biology. As a special means of synthetic biology, chloroplast genetic engineering shows excellent potential in reconstructing various...

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The objective of this study was to investigate the effects of applying different amounts of water and nitrogen on yield, fruit quality, water use efficiency (WUE), irrigation water use efficiency (IWUE) and nitrogen use efficiency (NUE) of drip-irrigated greenhouse tomatoes in northwestern China. Th...

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A novel thermal–optical phase modulation structure based on polymer/silica hybrid waveguide is proposed. Patterned graphene strip is introduced as electric nanoheater in the structure. Finite element method simulation is performed on both thermal and optical field analysis. Res...

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The effect of external roof shading on the spatial distribution of air temperature and relative humidity in a greenhouse (Tin and RHin) was evaluated under the arid climatic conditions of Riyadh City, Saudi Arabia. Two identical, evaporatively-cooled, single-span greenhouses were used in the experim...

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C21H22O4, orthorhombic, Pbca (no. 61), a = 9.1326(5) Å, b = 14.0165(9) Å, c = 26.9851(19) Å, V = 3454.3(4) Å3, Z = 8, R gt(F) = 0.0433 (2685), wR ref(F 2) = 0.0965, T = 293 K.