Search all articles

One of the factors in the formation of the ecological state of a city is the planning scheme of development, reflecting the features of the functional division of city space. At the same time, ensuring environmentally safe urban space involves solving the engineering problem of layout adjusting (optimization,...

In the process of the dry grinding machine replacing the traditional water grinding machine, the whole solution of the dust collection and recovery system of the ceramic dry edge grinding machine is put forward through the experimental research on the dust property, the wind cooling technology, the dust...

A glider is a kind of fixed-wing aircraft that does not use any power. After takeoff, it relies on the reaction force of the air acting on its lifting surfaces for free flight. So, an experiment is designed to research some information and the relationship between gliders. The method of controlling variables...

This paper takes Xiahe dialect as the research object, writes a Matlab program to extract the airflow signal parameters of the voiceless plosive initial, and establishes the airflow model of the plosive on the basis of more than 200 monosyllabic corpus, and describes the characteristics of different...

On 4 July 2015, GMCC Meizhi, the world’s largest air conditioning compressor company, and Welling Motors were integrated into Midea. It ranked as the 481st place on the Fortune Global 500 list for the first time and 307th place in 2020. After 33 years of development, GREE Group was established in March...

Air traffic control is also named flight control and it is the general term of supervision control and mandatory management implemented by relevant departments according to flight rules issued by the country for aircrafts flying in the sky. The main purpose is to maintain flight order and prevent collision...

It is indispensable to scientifically predict the consumption of air material spare parts and to make scientific decisions on aviation equipment maintenance resources and make full use of existing resources to improve maintenance capability. In the process of aviation equipment maintenance and support,...

This paper aims at designing a set of FPGA based phonetic intelligent home system, wherein this system completely adopts wireless communication technology to avoid rewiring problem and can control home appliances through voice recognition and infrared sensor, thus to phonetically turn on or turn off...

This study aims to develop an accurate and reliable model of greenhouse climate conditions. This research focuses on analyzing the complex interactions between temperature, humidity, light intensity, and airflow patterns in a greenhouse environment. Historical data analysis is used to create the model....

The significant increase in peoples’ interest in using air transportation to travel and the rise in information technology development become the main business opportunities for the Indonesian Aviation Industry. One of the important keys for the corporation to survive business competition is customers’...

First,we analyze the effects of the bubble and human action on the model.Finally, we discuss the change of water temperature and plan when room temperatures changes.We take the water as surface layer and inner layer.There is static air storing in bubble.According to formula of thermal resistance of air...

Analyses the measured data of water pumps in the 10 central air conditioning projects. The results show that the measured flow rate of pump is 19.3 percent higher than that of design flow rate on average, and the measured efficiency of pump is 58.8 percent higher than that of design value on average....

with the rapid development of laser technology and high integrated circuit technology in the field of aerospace, the equipment thermal dissipation is increasing sharply. The traditional thermal control methods such as air natural convection, forced convection and heat pipe cooling cannot meet the demand...

Bacteria live and grow anywhere, especially in hospitals as a place of patient care. An infected person, when coughing and touching objects, will deliver the transmission to the surrounding environment. Air is a potential means for viruses and bacteria to act as intermediaries for the transmission of...

Indoor CO and NO2 pollutants resulting from cooking activities are the cause of sick building syndrome. Several studies had shown that window openings for ventilation can lead indoor air conditions worse due to infiltration. There have not been many studies on this possible condition. Therefore, this...

Forecasting air traffic demands is important when planning for the future density and capacity of a Flight Information Region (FIR). There are many factors that affect air traffic demand such as Gross Domestic Product (GDP), air fare, service level, travel time etc. Our previous study analyzed the relationship...

Airspace planning of tactical training is a centralized planning, which is typical for Air Force tactical training. Because of the complexity of airspace and the diversity of training courses, artificial packing can't guarantee the utilization rate of airspace. Due to the irregularities of airspace,...

Aiming at the day-ahead optimal problem of microgrid, according to the accurate wind and light output data within 24 hours, this paper establishes the optimization model. In the case of adding storage battery regulation, the regulation and distribution model of the storage battery in one day is established,...

Starting a diesel engine must have two conditions: one is the oil is enough, good atomizing diesel can arrive the combustion chamber. The second is to make the air temperature of the combustion chamber can improve to make the diesel oil fire. Its working process contains four steps of air suction,compression,acting...

In order to investigate the influence of combustion chamber geometry on the formation of air-fuel mixture in diesel engine, a new double-layer diffluent combustion system for DI diesel engine was proposed which had a collision platform with circular oriented-surface. The mixing process of the fuel spray...

The fact that NaCl in air has induced degradation of cathode has been investigated for La0.6Sr0.4Co0.2Fe0.8O3 (LSCF). Cell performance was measured by volatilizing NaCl into the air supplied to the cathode at a constant current density of 200 mA cm-2 up to 100 h. At 800 oC, an exposure to 30 ppm NaCl...

In this paper, it’s based on the acceleration and strain data from the test of a city railway vehicle .This paper introduced how to carry out the excitation from the center pivot, air spring and couple by numerical integration and finite element model and get the external load of the car body.

The collation and analysis of the existing problems of ground source heat pump system and the existing solutions, based on the research and development of a new patch of ground source heat pump tower, through the experiment, obtained in the air temperature is 27.1 , the wet bulb temperature is 19.8 ,...

Based on the exploiture of turbine blade super cooling technology, porous medium is installed in a new kind of cooling configuration with cooling tunnels. Experiments and numerical simulations are carried out to investigate the thermally driven heat transfer rules in the new kind of cooling configuration...

Methodical approaches to construction of dust discharge profile of industrial enterprise are proposed. The discharge profile is considered to be a parameterized characteristic of the component structure of dust with the selection of specific (indicative) for the technological process elements. On the...

The usage of website is increasingly important for business in general including aviation industry because it provides additional benefits for the business. That is the reason why managing and maintaining a good website is very important in this digital age. One method to measure website quality was...

With the continuous improvement of the level of industrialization, the air pollution situation in China has become more and more serious. In many places, extreme weather such as haze has appeared, which seriously threatens people’s health. Therefore, it is necessary to establish a scientific and reasonable...

Mango puree is a semi-finished product processed from mangoes. This mango puree is usually preserved using the freezing method or the method of adding preservatives. But actually this mango puree can also be preserved by the drying method. The advantage of the drying method over the freezing method is...

As an important technical support platform of the next generation air traffic management concepts, Civil Aviation Wide Information Management System is responsible for providing various types of interactive information to relative business departments. This paper took SOA approach to analyze and design...

This study aims to assess supplier performance within the context of business sustainability, with a particular focus on the dried sea cucumber supply chain at CV. Air Maritim Nusantara. A quantitative approach was employed, incorporating document analysis, surveys, and interviews with key stakeholders...

Aircraft as air commercial air transport business entities are obliged to transport people, and / or cargo and post after the agreed transportation agreement. The rights and obligations of both the employer and the carrier are stated in the airplane ticket as one of the agreements. Passenger tickets...

3 kinds of cement concretes are listed as follow: normal concrete, air-entrained concrete with 4% air content, concrete with 15% fly ash and 4% air content. Experiment methods of environmental coupling effect were designed. Model had been proposed in order to classify ink-bottle pore. Contents and shapes...

With the rapid development of economy, People's living standard is improving and people are also more and more high to the requirement of environmental protection. Now used in most countries is coal-fired power generation way, this way of electricity will be massive emissions of polluting substances...

In this paper, fluent numerical simulation is used to solve the air flow in the 90 bend pipe with RNG epsilon model. The vortex and the secondary flow loss in the bend can be greatly reduced by adding a proper deflector. In this paper, 7 deflectors are respectively arranged along the radial direction...

Increasing and uncontrollable mining activities cause various impacts on the community, specifically those around the site. The impacts are environmental damage, massive pollution (soil, water, and air), and damage to houses and public facilities. This study used normative juridical method, departing...

This paper designed an indoor environment monitoring system, in order to enhance the quality of indoor air. This system can accurately measure the temperature, humidity and the concentration of oxygen, carbon dioxide, carbon monoxide, formaldehyde, PM2.5 and PM10 using the sensor array and transfer the...

In order to meet the requirements for multi-connected inverter air-condition of diversified service, intelligent control and reliable operation, an embedded home gateway terminal system based on STM 32 signal chip microcomputer, WIFI network and RS485 communication technique has been designed and is...

In this work we predict time series of air pollution data taken in Mexico City and the Valley of Mexico, by using the Gamma Classifier which is a novel intelligent associative mathematical model, coupled with an emergent coding technique. Historical and current data about the concentration of specific...

With the rapid development of civil aviation and the significant improvement of people’s living standards, taking an air plane has become a common and efficient way of travel. However, due to the flight characteristics of the aircraft and the sophistication of the fuselage structure, flight delays and...

In order to provide effective guide for on-site ventilation of heating pipeline confined space and ensure safety of the workers, the influence of the vents position, the vents numbers, the ventilation air volume and the mixed ventilation on the ventilation effect are studied by scale model test. According...

With the development of science and technology and the improvement of living standards, people in ensuring the precursor of family safety on quality of life and intelligent family life increasingly high expectations. But the quality of life only in terms of temperature and humidity real-time monitoring,...

One of the factors resulting from an airplane accident can be caused by the negligence of aircraft personnel in carrying out their duties. Negligence/omission (culpa) in criminal law is an action that should be done carefully but does not do it or lacks attention to the consequences that arise. If aircraft...

In this paper, the laser processing technology and quality control of hot stamped parts made of high-strength steel are studied. Through in-depth on-site practice and analysis, combined with the exploration of laser cutting burrs on complex curved parts, a solution to the causes of cutting burrs is proposed....

Galloping is a process gradually formed.Initially,the line has a small-amplitude vibration around the equilibrium position. With the impact of wind energy negative air damping ,the amplitude in the horizontal direction gradually reduced and vertical amplitude slowly increased.Thereby the path becomes...

Exposed to air and water, the oxidation of sulfide minerals (e.g. pyrite) in coal mine waste can result in serious environmental problems such as acid mine drainage (AMD). Thiobacillus ferrooxidans is generally regarded as the principal iron-oxidizing bacteria involved in the process of sulfide oxidation....

It is proposed in the parsing of energy conservation measures for energy strategy and its relationship with the rural planning: the utilization and development of rural energy is the key to the implementation of the national strategy for sustainable development. With the means of rural planning, we must...

The air collision avoidance system is an important measure to ensure the flight safety. One of the sticking point of collision avoidance is surveillance precisely and reliably. So, it is necessary to develop an independent and reliable air-air surveillance system. A TCAS/ ADS-B integrated surveillance...

We investigated an impact of technological conditions of oxidizing X12CrNiTi18-9 stainless steel implants in repeated heating-cooling cycles in the air on morphological features of resulting metal oxide coating. Our findings confirmed that generated coating had a high morphological heterogeneity of its...

Monoclinic Li1+xV3O8 is an attractive cathode candidate for lithium-ion batteries. Here Li1+xV3O8 precursor was synthesized via a electrospinning process using LiNO3, NH4VO3 and citric acid as raw materials, and followed by a thermal treatment at 450°C for 5 h in air atmosphere, to get well formed Li1+xV3O8...

Environmental damage in the world has reached an alarming level, such as climate change, ecological damage, deforestation, air and water pollution, damage to coral reefs and mangrove forests, and the threat of plastic waste. Prospective economics teachers with environmental literacy have a vital role...