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Urban village reconstruction has improved the living environment of the aborigines and effectively promoted urban economy. However, the negative impact between the aboriginal occupation and residence is widespread, and it has attracted broad attention of the public and academia. Taking urban villages of Taiyuan as an example, this paper randomly surveys 1, 000 aborigines in urban village and constructs a binary logistic regression model to identify and analyze the key influencing factors leading to the negative impact on the aboriginal occupational relationship after the reconstruction of urban villages. Results show that in urban village reconstruction, eight factors including household labor force, education level, occupation type, monthly income, resettlement mode, resettlement satisfaction, traffic satisfaction, and job changes have a significant impact on changes in occupational relations. Moreover, compared with the people with high income, low-income and low-education aborigines represent a more obvious change on the occupation and residence relationship. This paper provides corresponding policy recommendations and suggestions for making resettlement plan of the urban village reconstruction. [ABSTRACT FROM AUTHOR]

By means of software including Citespace and SATI 2668 literatures with "location problem" as the keywords in CNKI database were clustered and visualized. Research hotspots of location problem including site selection model and algorithm were analyzed to select the most suitable site selection model for PC component factory. Through the analysis the scale of PC component factory is large and the investment payback period is long thus the selection of PC factory is attributed to the single facility site. Based on the comprehensive evaluation method this paper summarizes the factors of site selection for PC factories, which is beneficial for selecting the suitable alternative location. This study uses the model to make quantitative evaluation of each alternative location and finally decides the location with the lowest total cost. [ABSTRACT FROM AUTHOR]

With the increasing of prefabricated rate, the on-site construction has make higher requirements for hoisting operation, thus the systematical analysis of technical and economic aspects of cranes is particularly urgent. Taking the hoisting process of tower crane as the research objective, a calculation model for the selection and location of tower crane is established by calculating the lifting range of the crane and decomposing the hoisting processes. With the shortest lifting time as the optimization objective, the optimal locating points of different types of tower crane are solved. In order to consider cost and function simultaneously, this paper introduced value engineering indexes to calculate the value engineering indexes of different tower cranes. Therefore, the technical and economic performances are compared to provide decision support for the selection of tower cranes. [ABSTRACT FROM AUTHOR]

Objective: The aim of this study is to evaluate the clinical significance of High-risk Human Papilloma virus DNA Detection Kit (Cervista HPV HR) designed to the utilized in cervical cancer screening programs., Methods: The investigation for Cervista HPV HR test is designed to detect 437 residual liquid-based cytology specimens collected during routine liquid-based Pap tests at standard care vistis and to identify the presence of HR HPV. We compared Cervista HPV HR Test against standard PCR, in order to examine the performance of Cervista HPV HR Test in populations with cervical intraepithelial neoplasia grade 2+ (CIN 2, CIN 3 and Cancer, CIN 2+), and the capabilities of A5/A6, A7, A9 oligonucleotides of Cervista for predicting CIN2+., Results: The accuracy of Cervista compared to PCR with bi-directional sequencing was 88.26%. The positive percent of Cervista HPV HR Test and PCR were 38.96% and 29.08%, respectively. The sensitivity, specificity, negative predictive value (NPV) and positive predictive value (PPV) of Cervista HPV HR Test for the detection of CIN2+ were 98.46%, 58.49%, 99.54% and 29.68%, respectively. The A9 oligonucleotides positivity percent was significantly higher in CIN2 + (odds ratio: 24.037, 95% CI: 10.086 - 57.283)., Conclusion: The Cervista HPV HR test can be clinically used for detecting HR HPV types during routine cervical cancer screening. A9 oligonucleotides were also strongly associated with CIN2+ diagnosis, which is improtant in cervical cancer screening for triage to colposcopy.