Research and Development of the Terminal Heating Machine under the Mode of Central Heating

2013 ◽  
Vol 353-356 ◽  
pp. 3137-3140
Author(s):  
Dan Liu

To meet the heat metering reform, reduce the excessive heat and energy waste in the process of central heating , achieve the goal of " low consumption, low emissions, low pollution ", on the base of forced convection of air, the Terminal Heating Machine has been researched and developed such as the process coil as the core technology. As central heating terminal device, has high heat dissipating capacity, reliable performance, long service life, low cost, energy saving and environmental protection advantages, good operation effect, the indicators all meet the design requirements.

2011 ◽  
Vol 101-102 ◽  
pp. 92-95
Author(s):  
Xue Ping Wu

Industrial design is not only the exterior design. Industrial design is the scientific and technical results transformation for products, goods. With environmental protection requirement, the core technology, technical innovation and knowledge innovation is the landing. Industrial design always is closely associated with science and technology. Technical and industrial design is innate relates in together. This paper tries to analyze the relation between industrial design requirements and technical beauty.


2012 ◽  
Vol 479-481 ◽  
pp. 98-101 ◽  
Author(s):  
Jun Hua Che ◽  
Qian Zeng ◽  
Shu You Zhang

The core capabilities are to provide full product space for customers with the low cost and high efficiency in customized manufacturers, and ultimately to meet the individual demand of customers. This paper proposes cloud-based service platform for mass customization by the advantages of cloud computing, in order to effectively achieve the company's core capabilities and integration of resources and meet the supply and demand between the fluctuations in orders and the long-lasting manufacturing capabilities. This paper mainly studies the service platform architecture and the core technology to improve the service capacity of mass customization business through the integration of resources, demand integration and optimal configuration.


2013 ◽  
Vol 760-762 ◽  
pp. 190-193
Author(s):  
Ya Jing Wang ◽  
Ya Zhen Li ◽  
Jing Guan

MIMO and OFDM technology is the core technology of 4G network, and have great development prospects. The main drawback of MIMO-OFDM system is the high PAPR. This paper is based on Cross-antenna rotation and inversion and Active Constellation Extension. The paper proposed the joint algorithm to reduce PAPR in STBC MIMO-OFDM system. It makes use of time, space and frequency freedom to improve the PAPR performance. The simulation results show that the joint algorithm can effectively reduce the PAPR value and do not increase the bit error rate in STBC MIMO-OFDM system.


Author(s):  
Pierre Carabin ◽  
Gillian Holcroft

Plasma Resource Recovery (PRR) is a revolutionary technology that can treat virtually any type of waste by combining gasification with vitrification. Vitrification produces inert slag that can be used as a construction material. Gasification produces a fuel gas containing carbon monoxide (CO) and hydrogen (H2), used for cogeneration of electricity and steam. The plasma fired eductor which is the core technology of the PRR system is presently being used commercially on a cruise ship at a scale of 5 TPD. The capabilities of the PRR technology have been demonstrated in a pilot plant, at a rate of up to 2 TPD of various types of waste. Because of the high intensity of the plasma flame and the reduced amounts of gases produced in a gasification system, compared to traditional combustion systems, the PRR system is typically very compact. As such, the PRR technology opens the door for a decentralized, small scale approach to waste management.


Agriculture ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 266 ◽  
Author(s):  
Ehsan Moradi ◽  
Jesús Rodrigo-Comino ◽  
Enric Terol ◽  
Gaspar Mora-Navarro ◽  
Alexandre Marco da Silva ◽  
...  

Agricultural activities induce micro-topographical changes, soil compaction and structural changes due to soil cultivation, which directly affect ecosystem services. However, little is known about how these soil structural changes occur during and after the planting of orchards, and which key factors and processes play a major role in soil compaction due to cultivation works. This study evaluates the improved stock unearthing method (ISUM) as a low-cost and precise alternative to the tedious and costly traditional core sampling method, to characterize the changes in soil compaction in a representative persimmon orchard in Eastern Spain. To achieve this goal, firstly, in the field, undisturbed soil samples using metallic core rings (in January 2016 and 2019) were collected at different soil depths between 45 paired-trees, and topographic variations were determined following the protocol established by ISUM (January 2019). Our results show that soil bulk density (Bd) increases with depth and in the inter-row area, due to the effect of tractor passes and human trampling. The bulk density values of the top surface layers (0–12 cm) showed the lowest soil accumulation, but the highest temporal and spatial variability. Soil consolidation within three years after planting as calculated using the core samples was 12 mm, whereas when calculated with ISUM, it was 14 mm. The quality of the results with ISUM was better than with the traditional core method, due to the higher amount of sampling points. The ISUM is a promising method to measure soil compaction, but it is restricted to the land where soil erosion does not take place, or where soil erosion is measured to establish a balance of soil redistribution. Another positive contribution of ISUM is that it requires 24 h of technician work to acquire the data, whereas the core method requires 272 h. Our research is the first approach to use ISUM to quantify soil compaction and will contribute to applying innovative and low-cost monitoring methods to agricultural land and conserving ecosystem services.


2018 ◽  
Vol 44 ◽  
pp. 00006 ◽  
Author(s):  
Marek Badura ◽  
Piotr Batog ◽  
Anetta Drzeniecka-Osiadacz ◽  
Piotr Modzel

Monitoring systems are needed to obtain information about particulate matter (PM) concentrations and to make such information accessible to the public. Small, low-cost, optical sensors could be used to improve the spatial and temporal resolution of PM data. The paper presents results of collocated comparison of four low-cost PM sensors and TEOM analyser, conducted from 20-08-2017 to 24-12-2017 in Wrocław, Poland. Plantower PMS7003 and Nova Fitness SDS011 sensors proved to be the best in terms of precision and were linearly correlated with TEOM data. Alphasense OPC-N2 sensors exhibited only moderate precision and linearity. Winsen ZH03A sensors had low repeatability between units and only one copy demonstrated good operation possibilities. All tested sensors had a bias in relation to PM2.5 concentrations obtained from TEOM.


2018 ◽  
Author(s):  
Kaiwen Zhang

This paper presents on-going progress on Guardian, a low-cost automatic pill dispenser aimed to help the elderly community to take their medication on time. The device is composed of a cylindrical body with a pneumatically powered system and rotating robotic arm in the center column as its core technology. This information in the paper is meant to record the development process that led to the filing of a provisional patent USPTO 15964875 (Application Number).


2021 ◽  
Vol 2066 (1) ◽  
pp. 012057
Author(s):  
Nan Li

Abstract Artificial intelligence technology (A I T) has also been widely used in society. Combining A I T with mechanical and electrical control systems will bring huge profits to the corporate sector and greatly improve work efficiency. It can save a lot of money in the electrical control operations of all walks of life in the country, and fill the gap in this technology in the country. The purpose of this article is to study the application of A I T in mechanical electrical control systems (M E C S). This article first introduces the basic theories and concepts of A I T, extends the core technology of A I T, and combines the current status of the electrical control system of modern enterprises in our country to discuss its existing problems, and finally studies and analyzes A I T and machinery. Combination of electrical control systems, and discuss the application of A I T in mechanical electrical orifice subsystems. Experiments show that, compared with the existing M E C S, the M E C S using A I T can better complete the work and improve work efficiency.


Author(s):  
Le Xuan Thuyen

A small mangrove colony growing for several decades on a mud flat on the left side of Balat River mouth has become today a large and healthy forest, containing a high ecosystem service value in the core of the Red River biosphere reserve. As a pioneer ecosystem located at land– water interface in the tropic, there exist always risks to mangroves, especially due to climate change and sea level rise. Sea level rise is a worldwide process, but subsidence is a local problem that can exacerbate these geo-hazards. A monitoring of shallow subsidence has been carried out by using SET-MH technique (developed by the United States Geological Survey) to track the both accretion and land sinking in the core zone of the National Park. The measurement shows the average sedimentation rate of 2.9 cm / yr and the sinking rate of 3.4 cm / yr, since Dec. 30th 2012. This is the first ground-based observation of shallow subsidence under mangroves in the Tonkin Gulf. As a simple and low cost method, so further expansion of this monitoring could provide more useful information to help identify the generally sinking trend of coastal areas in the Red River Delta and also to protect its own biosphere reserve.


The concept of sustainability for roof structure becomes most effective because slab consumes the highest amount of cement and steel in the building. This increases carbon footprint, which is a measure of the impact caused by the utilization of natural resources, eventually affecting the earth, and it becomes a subject of higher cost also. The objective of the paper is to find a safe, economical and sustainable roofing structure suitable for suburban and rural settlements. The literature survey carried out deeply and the potential is observed in tile vaulted structures. The core reasons behind adopting a vaulted structure are, it avoids using steel and concrete materials in construction, utilizes local labour, and low-cost local materials for construction. This predominantly becomes the primary factor in deciding the construction of an economical roofing structure for multiple dwelling units in rural and suburban settlements to provide a safe, sustainable and maintenance-free roofing system using tile vaulted structure.


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