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Selection of optimization results of abrasive wheels characteristics of the surface quality with fuzzy logic involvement are carried out in flat grinding conditions of high-strength aluminum alloy 1933T2 parts. The quality of grinded surfaces was evaluated using three groups of parameters: roughness,...

Since January 26, 2018 to August 7, 2019, under the issue that the Shanghai Composite Index has fallen sharply, the RSI expert system still recorded positive returns in the gold sector. Compared with the W&R expert system, its winning percentage, annual return, and net profit margin are 1.23, 13.96,...

Laundry wastewater is classified as domestic wastewater that has a turbidity of 25 – 150 NTU and can cause an environmental problem. Moringa seeds are plants that can be used as natural coagulants for the treatment of wastewater containing suspended colloids. The main purposes of this study are to extract...

Sorghum is a plant that has the potential to be developed on dry land such as ultisols. Provision of organic matter and application of NPK is one of the efforts to optimize plant growth on critical land. Cassava peel block compost and cassava peel compost are organic materials that can be used to increase...

As second language (L2) acquisition plays an increasingly important role in modern education, the demand for effective L2 teaching methods proved to be urgent. Nowadays, almost all Chinese colleges offer the L2 course of English, yet the L2 teaching methods vary dramatically. This paper examines the...

Guilin landscape is the best in the world, and Lijiang River Basin is one of the most important landscape axis in Guilin landscape, so the landscape planning of Lijiang River Basin and its coast is particularly important. However, in recent years, the ecological environment of Lijiang River Basin and...

With numerical method, the effect of the shape of base cavity on the aerodynamic force of the projectile is investigated. The Navier-Stokes equations with k- turbulence model were used as governing equations. The distributions of the flow field parameters and the drag coefficient of projectile with different...

The Minister of Research, Technology and Higher Education of the Republic of Indonesia has classified and ranked national universities. Previously, some rating agencies have classified and ranked college and universities both nationally and globally. The objectives of this study are to analyze public...

With the method Hydrothermal-photosynthesis, respectively prepare mesoporous silica adsorbent with different content of diamine-modified, 5%2N-SBA-15 10%2N-SBA-15 15%2N-SBA-15 20%2N-SBA-15. All mesoporous materials were characterized by X-ray diffraction(XRD), Fourier transform infrared spectroscopy(FT-IR)...

The phenomenon of favorite schools begins with the advancement of people's minds about the importance of education which causes the community to be more selective in choosing the best schools for their sons and daughters. The purpose of this study was to find out the learning activities and patterns...

Interests in biochar applications for improving soil properties and fertility are increasing worldwide, and numerous production techniques, raw materials, and application options are now available. This research aimed to investigate the effects of biochar application on growth rate (height, stem diameter,...

This study aims to determine the effect of the learning model Discovery Learning assisted by interactive learning videos on metacognitive awareness of class XI MA Ummul Mukminin. Various efforts have been made by the teacher to increase students’ metacognitive awareness. Metacognitive awareness is related...

The war between the Liao Dynasty and the Song Dynasty symbolized a peak of the history of the Chinese heavy cavalry. At this time, because of the development of the foundry technique, both the weapons and the armors of the cavalry were of better quality than any other Chinese dynasties before. In order...

In classroom teaching ecosystem, all classroom teaching activities take place under the guidance of goal oriented and based on teaching content. Just as natural ecosystem, only when the classroom teaching ecosystem is in a balanced state, can classroom teaching activities achieve the best teaching effect....

Biodiesel has developed as a plant-based fuel alternative over the last 20 years and is now a substitute for fossil diesel oil. Compared to fossil diesel, palm oil biodiesel offers advantages in terms of emissions, toxicity, biodegradability, engine lubrication, and contribution to national energy security....

In order to keep the social security system have sustainable development and solve the problem of population aging, this paper adopts the method of grey correlation degree analysis among the influencing factors of pension income and expenditure, picking out the best index to reflect the income and expenditure...

With the unceasing thorough development of reform and open policy and rapid development of economic construction, high-rise buildings, petrochemical industry and public places grow with each passing day. The urban development increasingly diversified and complicated, and the factors for causing a fire...

Based on the grey system theory and vector projection principle, this paper studied on the financial agglomeration level evaluation of the nine prefectures in Guizhou Province, which established the evaluation index system and adopted the grey relation projection method. The grey relation projection...

This research has the aim to uncover human resource practices in the hospitality industry. This research hopes to support and build insights and theories about the practice of Human Resources. This qualitative research begins with a literature study on HR practices, which will be confirmed through a...

In recent years, photo voltaic industry has achieved rapid development, and the investment in large-scale photo voltaic power plants has eased the supply of electricity in more information-poor regions. There are intelligent control methods in high-power solar power systems where solar position tracking...

This study aims to measure the cultural competence of Universitas Negeri Padang (UNP) librarians and determine the sociodemographic factors that influence their cultural competencies. We use the self-efficacy paradigm to find out cultural competence in this study and adopt Cultural Self-Efficacy Scale...

The adaptation of literary works into films is a complex cultural practice, not merely a transfer of narrative medium. Popular film adaptations have the power to shape collective consciousness. Adaptation is often viewed as a neutral process, when in fact the choices made during the adaptation process...

Agriculture faces a challenge to the success of the zero-hunger program of SDGs. The Ministry of Agriculture has granted farm equipment and machinery service businesses to farmers’ organizations. However, these businesses are unsuccessful in increasing the farmer’ prosperity. Therefore, the study aims...

Vitamin E is an antioxidant that can be formulated in a cream. VCO can be used as the oil phase in cream and can also function as an antioxidant, moisturizer and emollient. Object: The purpose of this study is to determine the effect of concentration level VCO in formula 1 (3%), formula 2 (6%), formula...

A pot experiment was conducted to study the effects of different concentrations of selenium (Se) on the growth and physiological characteristics of tomato seedlings. The results showed that the biomass, SOD activity, POD activity, CAT activity, soluble protein and soluble sugar content of tomato seedlings...

Food security is essential in order to fulfil other fundamental human rights, such as education, health, and employment. Its sufficiency is essential for availability, accessibility, stability, and utilization. This research, therefore, aims to examine the problems associated with food security among...

For the teaching of music courses, music courses are a cultivated course, which can cultivate sentiment, let us have fun in the noisy life, and enjoy the ocean of notes. As far as teaching is concerned, the auxiliary teaching system of music courses based on modern information technology takes the lead....

The egg industry is a significant contributor to the economy and requires a stable egg price for its sustainable growth. Accurate egg price prediction is crucial to monitor the market, provide reference for decision-making, and achieve early warning. This study presents a novel egg price forecasting...

Thyroid nodules are one of frequent clinical problem with prevalence of 5% palpable nodules. Results of atypia of undetermined significance (AUS) can be found with risk of 5-15% malignancy rates. Management of AUS is still challenging and complex including observation until surgical approach. We present...

PTFE/aramid woven fiber liners were modified by acrylamide, phosphate ester coupling agent, respectively. The effects of the modified liner on the friction coefficient, the wear loss and the friction temperature of self-lubricating spherical plain bearings were investigated by using self-made compound...

The research was conducted to find out which method is the best in assessing stock returns in LQ 45 companies. The populations used are companies included in the LQ 45 Index, which are the most liquid and large capitalized companies during the 2012-2016 period totaling 20 companies with purposive sampling...

Concrete is a mixture consisting of crushed stone or coral, sand, cement, water, and additives if needed. While the concrete to be designed is concrete made from a mixture of cement plus (fly ash + carbide waste), crushed stone, sand, and water. Therefore, it is necessary to make a mixture between cement...

In view of the current problems such as confusing interface, cumbersome operation, and poor experience of educational learning APPs, this paper proposes a design method for educational learning APPs based on the peak-end law, so as to improve the overall user experience. Based on the peak-end law, the...

An investor in oil and gas industry take the risk of concluding a long-term contract with a state counterparty that has the power at any time to change the tax law applicable to its contract. In this situation a state party cannot reassure an investor counterparty sufficiently to take such a risk. Tax...

The impact of the Covid-19 pandemic on the national and global economy was felt in the second quarter of 2020. In the first quarter of 2020, the national economy still grew by 2.97%, although it was down compared to the first quarter of 2019 which was 5.07. This is due to the external influence of Covid-19...

As a potential third-generation high-strength steel, the medium manganese steel has broad application prospects. Hot stamping technology can effectively solve the problems of large springback and large forming resistance in the cold stamping process of medium manganese steel. However, the hot stamped...

This study aims to identify and describe the role of the Kemuhammadiyahan course in strengthening the national insight of the students of the Pancasila and Civic Education Departmen at the Muhammadiyah University of Ponorogo. This research is a qualitative research with data collection methods in the...

Nowadays, the number of people’s trips has been significantly reduced due to the impact of the epidemic. As one of the most important means for people to travel, airlines suffer more and more losses. The purpose of this study was to explore whether domestic airlines in China using the Name Your Own Price...

The MoO3 samples were synthesized by rheological phase-hydrothermal method, and annealed at 450-650°C for 4h. The efforts of different annealed temperatures on the morphologies and electrochemical properties of the final products were systematically investigated. The MoO3 samples annealed at 550 °C exhibit...

Selecting the best hitter in a professional baseball league is considered a multi-attribute decision-making problem. We developed an evaluation model based on literature review and the Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) to select the best hitter in the Chinese...

As the growing amount of data stored on the Internet, the work of searching for information becomes complicated. The traditional collection method cannot achieve a certain effect, it is cumbersome and time-consuming. Using natural language processing technology and web crawler technology to collect and...

By introducing a homogeneous kernel of 0-degree with an independent parameter ,and estimating the weight function through the real function techniques, we give a multiple Hilbert type integral inequality with a best possible constant factor, in which the best possible constant factor also contains hypergemetric...

Based on the mechanism of thermal insulation, a new composite fluorocarbon thermal insulation coating (FTIC) was prepared with three different fillers of closed pore perlite, hollow glass microsphere and nano-antimony tin oxide (ATO) powder, in order to get the best thermal insulation performance, the...

Nowadays, the refugee crisis has become a worldwide problem. This paper aims to predict refugee crises, design optimal routes and simulate the movement of refugees. Finally, a policy recommendation is proposed, totally based on my research, to those concerned. Firstly, refugee acceptance index is proposed...

A pot experiment was conducted to study the effects of spraying with 5 different concentrations (0, 50, 100, 150, 200 μmol·L-1) of exogenous melatonin (MT) on photosynthetic characteristics of C. bursa-pastoris seedlings under 50 mmol·L-1 NaCl stress. The results showed that spraying exogenous MT significantly...

The study of diesel cooling and heat transfer can improve thermal efficiency and reduce exhaust emissions. The research on the heat transfer characteristics of diesel engine block, the influence of the cooling medium control parameters on the heat transfer characteristics of the cooling system and environmental...

K-Nearest Neighbor is a non-parametric classification algorithm that does not use training data and initial assumptions or models in the calculation process. The quality of the k-Nearest Neighbor classification results is very dependent on distance between object and value of k specified, so the selection...

Background: COVID-19 virus spread rapidly throughout the world. It caused the massive patients admitted to the hospitals with severe Acute Respiratory Distress Syndrome to exceed the capacity of beds in the ICU. It makes the hospital give priority to the ICU bed for the COVID-19 patient with the best...

Aluminum 6061 is a material that is widely used in the railway manufacturing industry. Friction Stir Welding (FSW) is a solid-state welding method without the addition of filler metal. FSW utilizes heat between the rotating tool and the gripped workpiece so that the heat generated is soften and melt...

Theobroma cacao L., commonly known as cocoa, is a plantation crop of significant economic value, renowned for its dried fruits. The high market demand for cocoa is not negatively correlated with its low production output. The high prevalence and quick spread of illness is the main problem in cocoa farms....