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The paper tends to study the determination of formaldehyde in squid and bummalo by HPLC. The calibration curve in the 0.5-50.0 µg/mL range was obtained and correlation coefficient was 0.9993. The detection limit was 5 mg/kg. Endogenous formaldehyde in bummalo and squid as well as the change rule of formaldehyde...

This study is aimed to describe the role of folktale as indigenous knowledge that are communicated from generation to generation from the older to the younger in building Cilembu sweet potato cultivation system based on local wisdom. The spoken culture of Dongeng Hui Cilembu (Tale of Cilembu Sweet Potato)...

Against the backdrop of the widespread application of artificial intelligence (AI) technology in the workplace, employees’ cognition and attitudes toward AI—namely AI awareness—have increasingly become a key factor affecting their work adaptability. Based on the cognitive appraisal theory of stress,...

This paper divides steel-auto industry chain from core business and value-added into steel unit, trade unit, machining unit, auto unit and general service unit in the light of the industry chain characteristics. Then product resource in the steel-auto industry chain is defined. By means of Grid technology...

Electrotopological state indices (EK) of atom types is used to describe the structures of 19 conjugates (LHCc) of levofloxacin-thiadiazole HDAC inhibitor (HDACi) and related to the inhibitory activity (pWi, i=1, 6) of LHCc against histone deacetylases(HDACs, HDAC1 and HDAC6). The optimal two-parameter(E17,...

With changes in lifestyle, the incidence of chronic non-communicable diseases (such as cardiovascular and cerebrovascular diseases, diabetes, malignant tumors, and chronic obstructive pulmonary disease) continues to rise, exerting tremendous pressure on the social healthcare system. This study aims to...

Drawing on RBV, dynamic capability and innovation theory, we suggest innovative capabilities may evolve within a hierarchy. Therefore, the effect of different orders of innovative capabilities on market performance should be discussed separately. Using a novel panel TAR (Threshold Auto-Regression Model)...

This article begins with the current situation of innovation and entrepreneurship education in China for more than a decade, analyzes the existing problems and deficiencies, compares the practical experience of other universities in China, explores ideas for the innovation and entrepreneurship education...

In order to meet the needs of different customer, manufacturer opened online direct channel based on retail channel. In the case of co-existence of dual-channel distribution, a model is built to analyze pricing competitions between one manufacturer and one retailer under the manufacturer providing business...

A cave lighting control system based on Internet of Things location is designed in this paper. The design is a sub-system of the IOT electronic guiding system based on Zigbee. Structure, principle, software, hardware and network are introduced in the paper. CC2431 is used to be a node when CC2430 is...

For satellite on-orbit supply unit during the period of degradation problems, based on the factors that affect supply unit output power and accepted by the satellite ground stations to related telemetry data, this paper proposes a clustering-based satellite solar power components regression estimation...

As a private university, Dalian University of Science and Technology always attaches great importance to strengthening party building. Through continuous promotion of the board of directors, the president's office, the party committee, the party and government joint meeting (hereinafter referred to as...

In the field of cloud manufacturing, in order to evaluate cloud service composition better, simulation could be introduced into the process of cloud service composition. This job requires adding simulation information to the service description document. Besides, for achieving the simulation of cloud...

The second language reading teaching in multimedia environment can provide students with an ideal environment to improve their reading ability in the multimedia environment. Due to the uniqueness of Zhuang ethnic college students' English learning, this paper mainly discusses their reading strategies...

Drama “The Heavenly Southern Gate” had been performed in the imperial palace of Qing Dynasty frequently and posed huge influence on people at that time. There were many heated discussion on this drama in newspapers in the late Qing Dynasty and the period of the Republic of China. It’s a pity! With the...

The construction industry faces increasing pressure to reduce carbon emissions due to environmental concerns and regulatory demands. Traditional cement-based concrete production contributes significantly to CO₂ emissions, primarily due to the energy-intensive cement manufacturing process. This study...

The early education of 0-3 years old infants is the beginning of lifelong education system,early education service of community for 0-3 years old infants exists some problems in China,for instance, the administrative service of community guarantees is insufficient, private early education institutions...

The optical current transformer play an important role on the security and stability of the power system especially HVDC. The HVDC control and protection system cannot be field verified without field simulation for the optical current transformer secondary signal. But the existing method for field simulation...

With the continuous and rapid development of the economy as well as the scientific information technology in China, the construction industry has ushered in a new market as a very prominent part of the national economic system. Under the background of the rapid development of both science and technology,...

Under the modern enterprise system, it is an inevitable problem for the management to act according to their own interests when making decisions. Therefore, the attitude of management in making decisions will inevitably affect the proportional relationship in the capital structure of the company. In...

This article is devoted to the analysis of non-profit organizations activity in the housing and utilities infrastructure sphere in Tver region. The research method is a traditional analysis of documents, in-depth interviewing of expert-leaders and activists of non-profit organizations in the field of...

Based on the analysis on the background of international run-through cultivation and the characteristics of the course of Engineering Graphics, the problems and shortcomings in the course teaching are found out. Aiming at the docking of domestic and foreign standards and the common problems in traditional...

Based on the STEAM education concept, artificial intelligence is integrated into the context creation. With “Chemical Detective Agency: Exploring Soda Brothers” as the main thread, a high school chemistry teaching case relying on handheld technology is designed to enhance students’ ability to comprehensively...

It is widely accepted that the higher vocational colleges should carry out the cultural quality education. How to improve the students’ cultural quality, which helps the students become fully developed interdisciplinary talents, is becoming an important subject concerning the education reform in higher...

In multi-component spectral analysis, informative variables selection is important to get satisfied performance. The present research intends to establish relationship between eggs freshness and NIR spectroscopy, and build a compact and robust calibration model. Graphically-oriented local multivariate...

There are many electric vehicles charging stations in distribution network.Uncoordinated charging electric vehicles load is large and changes quickily,it brings risk to the operation of power grid. If taking each station as an independent unit, which will reduce the practicability of the proposed strategy...

Based on the casting technique analysis on the temperature field and the velocity field for the low alloy steel, low alloy steel(LAS)/ high chromium white cast iron(HCCI) bimetal wear steel plate was prepared by two liquid bimetal composite casting process. The microstructure of interface layer of wear-resisting...

This paper analyzes the research status and development trend of the Outcome-Based Education (OBE) teaching concept in undergraduate education, aiming to provide theoretical basis and practical reference for undergraduate teaching reform. By retrieving the CNKI, VIP and Wanfang databases, a total of...

Solar power has become one of the most important renewable resources due to the energy crisis recently. An intelligent solar LED lighting driver system based on embedded technology was designed to make full use of the green energy. Electricity which was detected real-timely was generated by solar cells....

This article introduced application technology of road anti-icing asphalt coating. By conducting field tests, the construction procedures and requirements were summarized. By conducting lab tests, performances of the anti-icing asphalt coating were verified. Testing results show that the anti-icing asphalt...

Many cases show that multiple injections fracturing serves as an effective method to increase the probability of creating complex fracture network for shale gas reservoirs. However, its mechanism is unclear. This paper, therefore, intends to use numerical simulation and theoretical models to explore...

In recent years, urban management is gradually developing towards informationization. There are corresponding processing mechanisms for illegal billboards and illegal parking in urban management, but the method of detecting illegal billboards based on machine vision is still under study. At present,...

This paper confirms the importance of discrete mathematics, determining the teaching contents of the application of computer specialty. According to the teaching experience, this paper analyzes the problems existing in the discrete mathematics course and puts forward the method of teaching reform. These...

The fragment encoding aromatase (CYP19) with 45 N-terminal amino acids cut-off was cloned into pPIC9K vector and transformed to the yeast Pichia pastoris. The multi-copy recombinant strain was selected for the production of recombinant aromatase. The catalytic bioactivity of secreted enzyme was further...

For the weakness of the existing predistortion algorithm, when large amplitude component in the modulation signal which is more than the voltage in saturation will be limited, leading to predistortion algorithm become invalid, and a new joint RF power amplifier (PA) linearization method is proposed....

Cognitive Radio (CR) and Cognitive Network (CN) can optimize system objects by dynamically assigning network resource and adjusting network operations in terms of network environments and conditions. So these two cognitive technologies are very suitable for building emergency communication system to...

In the context of modern international market trade, in order to further promote the implementation of “the Belt and Road Initiative”, some scholars have proposed the concept of a cross-border e-commerce development model in the economic zone, using e-commerce as an international trade channel, making...

The Programmed Cell Death 1 (PD-1)/Programmed Death Ligand 1 (PD-L1) Immune Checkpoint Inhibitors (ICIs), have become a hot spot in the field of cancer research and treatment, and bring new hope to patients with advanced tumors. But, in addition to enhancing the anti-tumor effect of T cells, PD-1/PD-L1...

Today, the market world is becoming more complex, unpredictable, and competitive. Companies, as business actors, require the position of trained and knowledgeable human resources or personnel to adapt to changes in the business climate. The use of human resource management and investment as a form of...

Financial derivatives are important financial instruments in the new era, so they are widely used in the investment portfolio, not only to reasonably manage risks, but also conducive to financial investment to achieve the goal of income optimization. However, under the influence of current market fluctuations,...

With the rapid development of technology, standard essential patents (SEPs) have become a new focus of enterprise competition, especially of V2X. This paper firstly describes the basic concept and importance of SEP. Then it analyzes the application of SEP in the field of V2X, the challenges brought by...

Objective: To prepare the denture base material with anion-containing denture, and to test the friction properties of the denture base materials with different mass percentage of negative ion. Methods: Negative ion powders were added into the denture base materials by ball milling blending at 0%, 1%,...

Urban emergency shelters are very important public safety facilities. This paper analyses the spatial accessibility of emergency shelters in urban Tianjin by simulating the evacuation process. This process is divided into stages by using GIS spatial analysis techniques based on shelter data and house...

In the background of curriculum ideological and political construction, based on the data structure of application-oriented undergraduate colleges and universities, the paper puts forward a four-stress whole-process curriculum ideological and political practice path, which includes “attaching equal importance...

In this paper, we use the method of questionnaire survey and correlation analysis to study the relationship between Tourism Industry development and tobacco sales in Xishuangbanna Autonomous Prefectures. The impact of Tourism Industry development to tobacco sales is divided into direct effect and indirect...

In order to resolve the problem that the evaluation of enterprise culture management was hard to be accurately evaluated, an evaluation system and approach for enterprise culture management was proposed. Firstly, in view of whole life cycle of enterprise culture development, the basic process of the...

This study reports on the design, analysis and testing of a new ten-module triangular prism mast. The triangular prism mast is designed such that it is derived by tape-spring hyperelastic hinges using the stored strain energy. Static bending and theoretical models are established to predict the triangular...

Violation of parking is a legal term. Our country’s law stipulates that there should be no-stop signs and markings, road sections with isolation facilities between motor vehicles and non-motor vehicle lanes and sidewalks, and crosswalks and construction sites. No parking; Railway crossings, sharp bends,...

The S-CO2 Brayton cycle is widely used in any fields now. It mainly consists of four components: compressor, condenser, evaporator and Turbine. The exergy destruction and irreversibility analysis about this kind of system was presented, which is applied in the marine engine heat recovery system. The...

Herbicides are widely used in modern agriculture systems and vehicle exhaust significant emissions caused Pb contamination. After entering the soil ecosystem it will produce complex ecological effects, which cause certain effects on soil microbial biomass and biological activity. Choose common herbicide...