bluuebunny/crossref_metadata_2025_split huggingface dataset:
The quality supervision model construction of construction project in the whole life cycle
Authors: Wei Qi , Sun Lunan , Wei Li , Liu Qiannan 
Published: June 2020

Abstract
In order to find a solution to the shortcomings and problems in construction engineering supervision in China, the achievements of previous studies are summarized, and the construction engineering Life-Cycle is divided into pre-investment period, while-construction period, project operation period, as offers a theoretical basis for the quality supervision of construction project. In addition, by analysing the problems in current quality management with the principles of science norms vs standardized management, system management vs Life-Cycle, tradition inheritance vs reform and innovation, the basic framework of CELCQS model is constructed, and the duty subject of life-cycle quality supervision, the management subject of government supervision and the control subject of public supervision are pointed out. Among them, the duty subject includes the units of development, reconnaissance, design, construction, and project supervision; the subject of government supervision consists of the competent construction administration department and the national development and reform department and the construction drawing censorship; and the subject of social supervision refers to the project quality detection agency and the engineering cost consultation agency.
Study on the Fingerprint of Stellarlae Radix by UPLC
Authors: Yang Xiaosong , Kong Juan , Zhang Lingling , Wang Xiangpei , He Xiaomei , Wu Hongmei 
Published: June 2020

Abstract
Objective: The UPLC fingerprint of Stellarlae Radix was established to provide reference for quality control and evaluation of Stellarlae Radix. Method: The chromatographic separation was performed on a Agilent ZORBAX Eclipse Plus C18 (2.1mm×100mm, 1.8μm) with a gradient elution program using a mixture of acetonitrile and 0.1% phosphoric acid water as mobile phase at 225 nm wavelength, the flow rate was 0.1mL/min and the column temperature was 30°C. The Injection volume 1μL. 10 batches of Stellarlae Radix were measured under the same chromatographic conditions, and the similarity evaluation of 10 batches of Stellarlae Radix was carried out by using the software traditional Chinese medicine chromatographic fingerprint similarity evaluation system (version 2004). Results: The method for UPLC fingerprint analysis of 10 batches of Stellarlae Radix was established, and the similarity was between 0.941 and 0.980, and 13 common peaks were calibrated. Conclusion: The fingerprint method established in this study has good precision, repeatability, stability, short analysis time and strong specificity, which can provide scientific basis for the quality evaluation and control of Stellar Radix.
Exchange flow numerical method of dual-porosity model for different matrix size in 2D oil-water imbibition
Authors: Zheng Huan , Wang Min , Wang Xiaohong 
Published: June 2020

Abstract
Spontaneous imbibition is a common natural phenomenon in porous media. For natural fractured reservoir with a large number of hydrophilic and oleo-phobic rock blocks, the imbibition displacement of non-wetting phase by wetting phase with the dominant effect of capillary force is an important mechanism in exchange flow between matrix block and fracture in reservoir recovery. Scientists have concluded a scaling model which includes the permeability, porosity, boundary conditions, fluid-solid interaction and other factors though lots of experiments. In this study, after proposing appropriate characteristic scale in different periods of imbibition, the approximate saturation solution in one-dimensional imbibition obtained on the basis of scaling model is extended to two-dimensional process. Then, the exchange flow numerical method of dual-porosity model for two-dimensional multiphase imbibition is obtained. The results of simulation example show that the numerical method of exchange flow in this paper is more accurate than that of traditional dual-porosity model under different matrix rock size.
Research on Influence and Control of Unified Strength Theory of Geotechnical Materials on Deformation of Operating Metro Tunnels
Authors: Ling Pingping , Chen Zeshi 
Published: June 2020

Abstract
The difficulty in controlling large deformation of subway tunnels has always been a difficulty during construction and later operation, especially after the tunnel is excavated, a loose circle is formed around the tunnel. If the initial support strength of the tunnel cannot effectively resist the deformation of surrounding rocks, then Subway tunnels will continue to deform after excavation. If this kind of continuous deformation cannot be effectively controlled, the deformation of the tunnel will exceed the original designed deformation, and the large deformation of the tunnel will bring huge hidden dangers to the operation of the subway. The initial support technology is essential to quickly and effectively suppress the continuous deformation of the tunnel. Based on the unified strength theory, this paper studies the deformation mechanism and laws of the tunnel, and discusses several feasible control methods.
Sequence Analysis of BocAOP2.2 Gene in Cabbage
Authors: Yuan Qiao , Huang Wenli , Jian Yue , Zheng Hao , Jiang Min , Zhang Fen , Sun Bo 
Published: June 2020

Abstract
The AOP2.2 gene is an important gene affecting the side chain modification of aliphatic glucosinolate. Here, the Brassica oleracea var. capitata AOP2.2 (BocAOP2.2) gene sequence was obtained from the Brassica database (BRAD) and subjected to sequence analysis. It is indicated that the BocAOP2.2 gene contains a 1077 bp open reading frame (ORF) encoding a protein of 358 amino acids with a calculated molecular weight of 38.79 kD, the isoelectric point (pI) is 4.52. The highest number of amino acids is Valine (Val), whereas the lowest numbers of amino acids are Cysteine (Cys) and Tryptophan (Trp). Its prediction formula is C1664H2635N473O577S9. Its total hydrophobicity index is -0.549, the solution instability index is 23.25, and the fat solubility index is 78.41. Sequence alignment indicated that the BocAOP2.2 protein is more closely related to Brassica napus and Brassica Rapa, those all belonged to the Cruciferous genus. The results of this study provide a molecular basis for elucidating the function of BocAOP2.2 gene in cabbage.
Study on the microstructure and its coloration mechanism of peacock feather by the FDTD method
Authors: Wang Yongguo , Ren Yuehong , Wang Zhijun , Xu Qin , Zhang Lei 
Published: June 2020

Abstract
Animal body colors have attracted researcher’s attention because of their functions of reducing accessibility to predators, helping to capture prey, helping to court and so on. In the paper, peacock feather structure and mechanism of forming colors were relatively systematically studied. The experimental data of the microstructure of green male peacock “eyespot” parts were obtained, and their reflective optical characteristics were tested. The theoretical results simulated using a finite difference time domain method are well consistent with the above experimental results. Therefore, it was confirmed that peacock feather structural colors mainly come from two-dimensional photonic crystal structure. It further proves that the feasibility of the finite difference time domain method. This study is of great significance in printing and dyeing industry, textile industry and other fields in China.
Effect of Foreign Object Damage at Different Impact Parts for TC4 Titanium Alloy Blades
Authors: Zhu Guanfang , Zhang Zhongping 
Published: June 2020

Abstract
The effect of foreign object damage at different impact parts of TC4 Titanium Alloy blades is studied in this paper and impact damage from common foreign objects at different parts of the inlet side of the blade has been simulated in the process of aircraft skidding using the ANSYS/LS-DYNA software based on the Kinematic hardening plastic constitutive model. The results show that the damage depth of the sandstone increases linearly with the increase of relative kinetic energy when the same foreign object strikes different parts, but there is a critical relative kinetic energy of 2.54J and 2.50J for the steel ball and screw, respectively. When the relative kinetic energy is less than the critical value, the damage depth increases continuously with the relative kinetic energy, and when the relative kinetic energy is greater than the critical value, the damage depth decreases continuously with the relative kinetic energy.
The Influence of the Design and Manufacture of Sports Equipment on Sports
Authors: Qiu Zhenyu 
Published: June 2020

Abstract
Sports equipment is the general term of all kinds of equipment, apparatus and supplies used by people to participate in sports. It is an important carrier for people to participate in sports. Nowadays, the influence of sports is gradually expanding day by day. With the progress of science and technology, the important role of sports equipment has been highlighted in sports. The producers of sports equipment carry out innovation and creation, according to each link of sports, which not only promotes the development of sports, but also provides convenience for all levels of sports crowd. The design and manufacture of sports equipment is closelyrelated to the function of sports events, and also closely related to the use of sports participants. From the user’s point of view, this paper discusses the classification, design and improvement of sports equipment, and also discusses the application of sports equipment in sports competitions to avoid the occurrence of unfair factors, so as to maintain the fairness of sports competitions.
Study on the Balance Activity of Mice Based on BP-ANN
Authors: Zhu Lilan , Du Shaohui , Liang Xiaoli 
Published: June 2020

Abstract
In order to study the quantitative structure-activity relationship (QSAR) of the balance activity (pH) for 30 benzodiazepinooxazole derivatives to male mice, the molecular electronegativity distance vector (M
D) of above compounds was calculated by program according to molecular topological environment in this paper. The five-variable (M
6,
M
46, M
25,
M
63,
M
70) QSAR model of pH for above compounds was constructed by using leaps-and-bounds regression method. The result demonstrates that the model is robustness and good prediction ability by using R
cv

2, F tests. The M
6,
M
46, M
25,
M
63 and M
70 were used as the input neurons of artificial neural network (ANN), and a 5:3:1 network architecture was employed. A satisfying BP-pH model could be constructed with the back-propagation algorithm, with the correlation coefficient (R
2) and the standard error(S
D) being 0.928 and 0.117, respectively, showing that the relationship between pH and these structural parameters has a good nonlinear correlation. Form the three parameters of the model, it is known that the dominant influence factors of increased balance activity are the microscopic fragments: –CH3, –CH2–, >C<, –NH–, –N< and –X in the molecules.
Parametric Design of Glaze Color and Texture Feeling of Painted Pottery of the Huaning Pottery
Authors: Yao Wang 
Published: June 2020

Abstract
The protection, inheritance and innovative design of Yunnan Huaning pottery has attracted many scholars’ research. However, the key to modern innovative design of Huaning pottery is to find the connection point between traditional craftsmanship and modern design by using parametric design method in design. On the basis of many field investigations, the parametric design method is applied to collect glaze patterns and analyze the information of classification, textual research, data standards, etc., so that the glaze color and other data of folk art ceramics can be changed and classified as a whole. Parametric design method is applied to the analysis and research of glaze color and texture of traditional pottery, which is the trend in the field of innovative design of pottery products in the future.
Blind-assisting Waistcoat Based on Distance-Vibration Algorithm and Sensory Substitution Principle
Authors: Lou Yifan 
Published: June 2020

Abstract
At present, there are more than 200 million people having the congenital or acquired visual disorder in the world. Blindness make the daily activities of people subjected to various restrictions, and the most prominent restriction is obstacles in walking. The traditional guide tool used by most visual impaired people for assisting the walking has the defects such as single function, inconvenience in use, poor combination with the human body, etc. Therefore, with the development and increasing mature of the wearable device and the Internet-of-things technology, a new way is searched for solving the walking problem of the blind people, and the study for combining the blind assisting device with the frontier neuroscience, wearable technology and Internet of things can make the science and technology to benefit this disadvantaged group and has positive social significance. This study utilizes the laser radar to substitute the visual organ to acquire spatial distance information around the blind people, transmits the data to the Arduino single chip microprocessor to process through the serial port, and finally controls the vibration mode on the waistcoat through the Bluetooth communication, thereby innovatively converting the radar input into the vibration mode, developing the corresponding distance-vibration algorithm, and allowing the blind people to acquire the spatial obstacle information in a motion sensing mode. Over a given adaption period, as the user’s brain learns, understands and integrates different vibration modes, the user can directly have the vision-like depth perception of the space in a sensory substitution mode on neuroscience.
Review and Prospect of Research on Innovation Thinking at Home and Abroad
Authors: Fang Zhi 
Published: June 2020

Abstract
Creative thinking is the core of creative ability, and the level of individual creative thinking ability is an important reflection of its creative ability. The article reviews the literature on innovative thinking at home and abroad, systematically sorts out and summarizes the concepts and characteristics of innovative thinking, summarizes the status and problems of innovative thinking research at home and abroad, and then puts forward the deficiencies of research including academic circles about innovation. The definition of the concept of thinking is not unified; there are different understandings of the characteristics of innovative thinking in the academic world; the number of innovative thinking studies is relatively small and the research direction is not clear; the macro-level research of innovative thinking training is insufficient and the countermeasures are not targeted. It also proposes future research directions for innovative thinking from strengthening theoretical research, strengthening macro- and micro-level research on innovative thinking cultivation, and strengthening scientific research activities as an important way to cultivate college students’ innovative thinking, to enrich the theory and talent cultivation of innovative thinking. Important decision-making reference.
A Comparative Analysis of Inhibitory Effect of Different Levels of Ya’an Tibetan Tea on Lipase
Authors: Xu Jingyi , Wang Weiyi , Du Mengze , He Chunlei , Bian Jinlin , Du Xiao 
Published: June 2020

Abstract
In this experiment, the inhibition effects in vitro and inhibition type of different levels of Ya’an Tibetan tea on lipase were studied by measuring its biochemical components, enzyme activity, and semi-inhibitory concentration. The results showed that the higher the grade of Ya’an Tibetan tea, the higher the content of water extracts, tea polyphenols, caffeine, free amino acids, soluble sugars and theabrownins. At the same tea soup concentration, the inhibition rate of all of Ya’an Tibetan tea on lipase showed an increasing trend with the increase of tea soup concentration. The IC50 of the semi-inhibitory concentration of inhibitory effect of each tea sample on lipase was greater than 20 mg. mL−1. The order of the inhibitory ability on lipase were Jixiang level one and Jixiang level three>Jixiang level two, Yixing level one and Yixing level three>Yixing level two. The inhibition types were all mixed type of reversible inhibition between competitive and non-competitive inhibition, which was closer to competitive inhibition. The inhibition was a mixed type of reversible competitive and non-competitive inhibition, which was close to the competitive inhibition. The results showed that different levels of Ya’an Tibetan tea had good inhibitory effects on lipase, and could be developed and used as natural lipase inhibitors.
Inhibitory Effect of the Theabrownin and Tea Polysaccharide Extracts of Dark Tea on Lipase
Authors: Xu Jingyi , Wang Weiyi , Liang Xing , Li Pinwu , Zou Yao , Du Xiao 
Published: June 2020

Abstract
In order to investigate the effect of theabrownin and tea polysaccharide of dark tea on reducing fat and weight, theabrownin and tea polysaccharide extracted from dark tea of the same level in different regions were studied in this experiment and p-nitro phenol method and enzyme kinetics method was used to analyze the inhibition effects of theabrownin and tea polysaccharide on lipase, and the inhibition mechanism of tea theabrownin and tea polysaccharide on lipase was explored. The results showed that theabrownin and tea polysaccharide of dark tea extracts had a good inhibitory effect on lipase. Among them, theabrownin extracts of Pu-erh tea had the best inhibitory effect, and the IC50 of the semi-inhibitory concentration was the smallest at 24.21mg .mL−1, which was significantly less than semi-inhibitory concentrations of theabrownin extracts from dark tea in the other three regions( P<0.01). The inhibitory effect of polysaccharide extract of Liubao tea was the best, and the IC50 of the semi-inhibitory concentration was the smallest, which was 58.57mg · mL−1. It is not significantly different from the semi-inhibitory concentration of the tea polysaccharide of Pu-erh and Kang brick, but it was significantly greater than the semi-inhibitory concentration of Fu-brick tea polysaccharide (P <0.01).The results of kinetic studies showed that the catalyst type of tea theabrownin extract of all teas was a mixed type, which contained competitive and non-competitive type in a reversible inhibition type. The catalyst type of tea polysaccharide extract of Pu-erh tea, Liubao and Tibetan tea tea were mixed types, which contained competitive and noncompetitive type in a reversible inhibition type. The catalyst type of polysaccharide extract of Fu-brick tea was a reversible inhibition type and its inhibition type was competitive inhibition. In conclusion, the theabrownin extract of Pu-erh tea and tea polysaccharide extract of Liubao tea had the best inhibitory effect on the lipase.
Analysis of main agronomic traits in different varieties of carrots
Authors: Chen Chunyan , Ma Jie , Ma Jun , Ma Wei , Yang Jiao 
Published: June 2020

Abstract
In this study, twelve varieties of carrots were evaluated for their main agronomic traits. Main agronomic traits were significantly different among distinct varieties. In detail, weight of single root ranged from 75.29 g to 278.56 g, diameter of single root ranged from 2.34 cm to 5.50 cm, and length of single root ranged from 14.85 cm to 24.10 cm. Moreover, according to carrot color, twelve varieties of carrots could be divided into five groups: purple (Tianzi), purple with orange core (Zishengzi, Hongzishen, and Yanzi), purple with yellow core (Zs-h, Zs-z, Cs-z, Caohaihong, and Zhongzidan), orange (Chengzishen), and yellow (Huangzishen and Zishenghuang). The color values (L
*, a
*, and b
*) of each variety were also investigated. And all carrots were conical shape. This information could be a theoretical basis for the research and extension of carrots.
Research on olid/liquid ratio and initial pH for Perna Viridis protein reacting
Authors: Zhang Yongli 
Published: June 2020

Abstract
Taking the degree of hydrolysis as the index, single-factor experiments of autolysis of P. viridis were conducted. The solid/liquid ratio and initial pH on the degree of autolysis were chosen, and the optimum conditions obtained in these experiments were liquid/solid material ratio of 1:3, and pH of 7.0.
Study on catalyst stability based on morphology and structure characterization
Authors: Zhang Yongli 
Published: June 2020

Abstract
In this experiment, the dissolution concentration of metal ions, SEM, TEM, and XRD were used as the stability evaluation index of the catalyst, and the activity and stability of the catalyst were further comprehensively evaluated. The catalyst Pd-catalyst was used to treat simulated printing and dyeing waste-water by CWAO method. The results shows that the morphology and structure of the Cu-Fe-Pd-La/γ-A12O3 (ratio 1:1:1:3) catalyst do not change significantly before and after the CWAO reaction, indicating that the experimentally prepared Pd-catalyst has better stability.
Research and implementation of single point focusing system based on planar array ultrasonic transducer
Authors: Liu Jinmeng 
Published: June 2020

Abstract
Ultrasound hyperthermia treatment is an advanced method of tumor treatment developed in recent years. Different from traditional tumor cutting and chemotherapy, it has the advantages of non-invasive, reducing patients’ pain and recovery time. The focus of ultrasound is one of the key technologies of this treatment technology. In this paper, a phased array ultrasound focus system is designed. Combined with the 256 element planar array ultrasonic transducer, the single point focus and three-point focus of ultrasound are realized by using time inversion method. The intensity distribution map is drawn by MATLAB, and the actual intensity distribution is detected by using the horizontal plane, which verifies the correctness of the method it can enhance the energy density of the emitted ultrasound and shorten the treatment time.
How to Determine the Size of Longitudinal-flexural Mode Linear Ultrasonic Motor
Authors: Wang Chen 
Published: June 2020

Abstract
Linear ultrasonic motor is more and more widely used. Based on the coupling of longitudinal and flexural mode, the piezoelectric stator induces the elliptical locus of contact points to drive the rotor. Now, how to determine the size of a linear ultrasonic motor is still an important problem. Here, we use Shi’s structure of the linear ultrasonic motor and reconstruct the finite element model by the parametric design language of APDL to execute modal, harmonic, transient and contact analyses. We find the frequency of longitudinal mode is only related to the length of the piezoelectric stator and the frequency of flexural mode is related to the length and width of the piezoelectric stator. Based on the results, we put forward a simple strategy to design the linear ultrasonic motor. We find that viscous damping is important to the coupling. Suitable viscous damping gives a large frequency band where the longitudinal and flexural modes are inspired simultaneously. Our results also give a minimum limit of the number of substeps in a period in transient analysis.