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Online since: August 2023
Authors: Vesna Petrović, Dušan Gavanski, Branko Savić, Mnerie Dumitru
Application of New Important Materials
Vesna Petrović1,a, Dušan Gavanski1,b, Branko Savić1,c and Dumitru Mnerie2,d *
1The Higher Education Technical School of Professional Studies in Novi Sad, Školska 1, 21000 Novi Sad, Serbia
2Faculty of Mechanical Engineering, Politehnica University Timisoara, Piața Victoriei nr. 2, Romania
apetrovic.v@vtsns.edu.rs, bgavanski@vtsns.edu.rs, csavic@vtsns.edu.rs, d*dumitru_mnerie@yahoo.com
Keywords: new materials, nanomaterials, polymers, smart glasses, biomaterials, polymers
Abstract.
Selective sponge absorption [8] The obtained nanocellulosic sponge showed excellent oil/water absorption selectivity with high oil absorption capacity, Figure 3.
The mentioned properties nominate it as a material that should be taken into consideration when separating oil and water during all processes where they are mixed.
This especially applies to the unwanted events of spilling oil into water, so these sponges could be used very successfully for water purification.
The nanofibers were suspended in water and fed into a small channel, wide only one millimeter, while water with a low pH value was added through two pairs of channels placed normal to the main one, pressing the nanofibers and accelerating their flow, Figure 4.a.
Selective sponge absorption [8] The obtained nanocellulosic sponge showed excellent oil/water absorption selectivity with high oil absorption capacity, Figure 3.
The mentioned properties nominate it as a material that should be taken into consideration when separating oil and water during all processes where they are mixed.
This especially applies to the unwanted events of spilling oil into water, so these sponges could be used very successfully for water purification.
The nanofibers were suspended in water and fed into a small channel, wide only one millimeter, while water with a low pH value was added through two pairs of channels placed normal to the main one, pressing the nanofibers and accelerating their flow, Figure 4.a.
Online since: December 2012
Authors: Kai Meng Sun
According to document retrieval, it is reported that the fiber optic sensor with non-electric detection, long-distance detection and high sensitivity is applied to quality seed cultivation, irrigation and water conservancy as well as agricultural planting; after constant experiments and applications in recent years, these sensors have already had good stability, applicability for system requests, excellent cost performance and other features, and been increasingly adopted in agricultural field.
Utilizing the Internet of Things technology and based on the Internet of Things, the farmland automatic water-saving irrigation system features real-time collecting and transmission of sensor data, irrigating pipe network controlled by irrigation controller, real-time irrigation by zones and soil humidity adjustment, spatiotemporal difference and efficient water use required by precision agriculture.
Controlling the irrigation (water pump, sprinkler and drop irrigation) equipment and fertilization equipment by computer chips can be totally settled.
In the Internet of Things system for field crop growth monitoring, perception layer is composed of acquisition sensor for agriculture use, RFID reader writer and wireless sensor network consisted of a number of collection equipment, used for dynamic collection of field crop growth forms and environmental information; network layer is composed of wireless and wired data transmission network, data analysis and control center and professional processing system, used for the transmission, storage, analysis and processing of dynamic collection data; application layer is composed of agricultural research, agricultural production, environmental monitoring, production control and other parts, used for application services of data, such as scientific research service, monitoring service, control service. 2.Several Urgent Problems 2.1 Reasonability of Collecting Point Distribution Design The basic input on the Internet of Things construction is a large amount of money, in which the acquisition
Farmland Automatic Water-Saving Irrigation System Based on the Internet of Things.
Utilizing the Internet of Things technology and based on the Internet of Things, the farmland automatic water-saving irrigation system features real-time collecting and transmission of sensor data, irrigating pipe network controlled by irrigation controller, real-time irrigation by zones and soil humidity adjustment, spatiotemporal difference and efficient water use required by precision agriculture.
Controlling the irrigation (water pump, sprinkler and drop irrigation) equipment and fertilization equipment by computer chips can be totally settled.
In the Internet of Things system for field crop growth monitoring, perception layer is composed of acquisition sensor for agriculture use, RFID reader writer and wireless sensor network consisted of a number of collection equipment, used for dynamic collection of field crop growth forms and environmental information; network layer is composed of wireless and wired data transmission network, data analysis and control center and professional processing system, used for the transmission, storage, analysis and processing of dynamic collection data; application layer is composed of agricultural research, agricultural production, environmental monitoring, production control and other parts, used for application services of data, such as scientific research service, monitoring service, control service. 2.Several Urgent Problems 2.1 Reasonability of Collecting Point Distribution Design The basic input on the Internet of Things construction is a large amount of money, in which the acquisition
Farmland Automatic Water-Saving Irrigation System Based on the Internet of Things.
Online since: December 2012
Authors: Qiu Yue Hua, Bo Jiang
Project profile
Planning area of the project is 33.75 square kilometers (the water area is included).
Goals Function orientation.Tourism services are provided mainly in the tourism integrated service area which includes tourism service center, local product business, ecological inns, pastoral education center, cultural theatre, farming household; Water amusement and rest is in the wetland and rural scenery area constituted by wetland garden, birds’ heaven, fishing in wetland, boating in wetland, water's edge of art beauty, and pastoral post; Ecological experience happens in the Lohas picking experiencing area where there are Picking Areas in greenhouse, Orchard Picking Area, base for organic vegetables, ecologic restaurants, Lohas farm, Lohas herb house and others; pastoral mood can be experienced in the outward survival and development area which is composed of pastoral development camp, military sports park, water exploration, children's playground, DIY agricultural workshop, rural barbecue and bonfire party; as for movie & TV culture, there is a movie & TV culture and media area including
The projects provide exciting experience and can be used for high quality professional training.
Agricultural and scientific wonders, water-borne amusement, countryside walk, characteristic native residential village, etc. will provide multiple choices.
Goals Function orientation.Tourism services are provided mainly in the tourism integrated service area which includes tourism service center, local product business, ecological inns, pastoral education center, cultural theatre, farming household; Water amusement and rest is in the wetland and rural scenery area constituted by wetland garden, birds’ heaven, fishing in wetland, boating in wetland, water's edge of art beauty, and pastoral post; Ecological experience happens in the Lohas picking experiencing area where there are Picking Areas in greenhouse, Orchard Picking Area, base for organic vegetables, ecologic restaurants, Lohas farm, Lohas herb house and others; pastoral mood can be experienced in the outward survival and development area which is composed of pastoral development camp, military sports park, water exploration, children's playground, DIY agricultural workshop, rural barbecue and bonfire party; as for movie & TV culture, there is a movie & TV culture and media area including
The projects provide exciting experience and can be used for high quality professional training.
Agricultural and scientific wonders, water-borne amusement, countryside walk, characteristic native residential village, etc. will provide multiple choices.
Online since: August 2013
Authors: Zhen Xing Cheng, Yang Yu
As the emerging trend of “Internet of things” development, “maritime Internet of things" grows rapidly, and gradually extends from inland and coastal waters to the ocean, leading the “Internet of things” overall development.
Application II: New Breakthrough In The Far-Reaching Sea Exploration Submersible Under With the ocean development expansion continually from the shallow waters to the far-reaching sea, the “Integrated Ocean Drilling”, “Sea Floor Observatory Network” and other far-reaching sea global projects are carried out.
For example, the underwater ROV oriented system is hard to orient accurately by cameras under the influence of the insufficient illumination or turbid water quality, which make it easy to collide.
(Table 2) AUV can enter in a complex structure without relying on a large water surface support.
Affinity Services of Public Platform Application of AI technology in marine development is often for the needs of professional sector and its high-end and complex characteristics make it hard to close to the public.
Application II: New Breakthrough In The Far-Reaching Sea Exploration Submersible Under With the ocean development expansion continually from the shallow waters to the far-reaching sea, the “Integrated Ocean Drilling”, “Sea Floor Observatory Network” and other far-reaching sea global projects are carried out.
For example, the underwater ROV oriented system is hard to orient accurately by cameras under the influence of the insufficient illumination or turbid water quality, which make it easy to collide.
(Table 2) AUV can enter in a complex structure without relying on a large water surface support.
Affinity Services of Public Platform Application of AI technology in marine development is often for the needs of professional sector and its high-end and complex characteristics make it hard to close to the public.
Online since: July 2022
Authors: Yevhen Krivoruchko, Dmytro Dubinin, Andrei Lisniak, Andrii Pobidash
Wood description
Content of the products of thermal decomposition, [%]
coal
resins
highly volatile components
gases
water
Birch
33.6
14.3
12.3
17.0
22.8
Pine-tree
38.0
16.7
6.2
17.7
21.4
Fur-tree
37.9
15.3
6.3
18.2
22.3
Thermal and chemical impact of the solid flammable materials gains currency both in the case of use under normal conditions and in the case of fires [19].
The paper [25] states that some combustion processes, in particular the water evaporation, the gas and liquid transfer inside solid materials and change in the volume were usually ignored during the previous studies and very few papers were focused on the simulation of the behavior of certain compound polymers that are charred at the time of the fire.
The suggested numerical model takes into consideration both solid and gaseous phases of certain previous fire processes that are usually ignored, in particular the water evaporation, the gas and liquid transfer inside solid materials and change in the volume.
NPO «Professional», 2 (2002)
Dubinin et al., Improving the installation for fire extinguishing with finely-dispersed water.
The paper [25] states that some combustion processes, in particular the water evaporation, the gas and liquid transfer inside solid materials and change in the volume were usually ignored during the previous studies and very few papers were focused on the simulation of the behavior of certain compound polymers that are charred at the time of the fire.
The suggested numerical model takes into consideration both solid and gaseous phases of certain previous fire processes that are usually ignored, in particular the water evaporation, the gas and liquid transfer inside solid materials and change in the volume.
NPO «Professional», 2 (2002)
Dubinin et al., Improving the installation for fire extinguishing with finely-dispersed water.
Online since: October 2011
Authors: Yi Xuan Fan, Qiang Cao, Xiao Xu Guan
From the geological situation, the East China Sea continental slope, northern South China Sea continental slope and the Trough, the waters surrounding Taiwan, Okinawa Trough, Dongsha and Nansha Trough, these areas are good with geological conditions, which is good for gas hydrate production[2].
2.4 Distribution and characteristics of shale gas
Shale gas resource in China is widely distributed in marine basin and marine basin on land.
On development phase, single well production is low and production cycle is long, and generally do not produce water[3] .
Surface of Southern Sichuan is hilly with many low mountains, constrained by surface water and traffic conditions, the water is scarce on mountains, so It is difficult build the well sites, Although the foot of the mountains are plains, easily to find water, transport convenience, but most land are farmland, and a higher concentration of residents, so build well sites are very difficult. 4.3 Invest a lot but lack of engineering equipments and teams By 2020, China plans to increase domestic reserves of shale gas exploitation to 1 trillion cubic meters, accounting for 8% to 12% of conventional natural gas production.
In addition to the solid financial support, we also need talent preservation who possess a professional theory research knowledge.
On development phase, single well production is low and production cycle is long, and generally do not produce water[3] .
Surface of Southern Sichuan is hilly with many low mountains, constrained by surface water and traffic conditions, the water is scarce on mountains, so It is difficult build the well sites, Although the foot of the mountains are plains, easily to find water, transport convenience, but most land are farmland, and a higher concentration of residents, so build well sites are very difficult. 4.3 Invest a lot but lack of engineering equipments and teams By 2020, China plans to increase domestic reserves of shale gas exploitation to 1 trillion cubic meters, accounting for 8% to 12% of conventional natural gas production.
In addition to the solid financial support, we also need talent preservation who possess a professional theory research knowledge.
Online since: December 2014
Authors: Yong Li Wang, Ji Qiong Han, Li Shan Fan, Dan Shi
Introduction
Distributed energy refers to the energy distribution in the user side and renewable energy cascade utilization and resource utilization facilities,such as solar power, solar water heaters, cogeneration, biogas utilization.
Specific factors shown below: Figure 1 Distributed major factor in the development of energy systems analysis diagram Figure 1 analyzes the various factors will affect the development of distributed energy systems in distributed energy systems research and development process, there are still many problems to be solved, such as energy policy and related professional and technical aspects of the problems.
Distributed Energy Efficiency Analysis: Distributed energy systems that can use cleaner fuels such as natural gas, coal bed methane, also can use waste resources, such as coke oven gas, methane,also can take advantage of renewable energy sources, such as water, wind, and solar energy.
Table 2 Compares the Chinese and global renewable energy reserves Analysis Table Item Solar Wind Biomass Geothermal Water China 7*1012 kW 1.6*108 kW 6.3*108 kW 4*108t 9.3*1019 J Global 1.74*1014 kW 3.5*1012 kW 8.96*109 kW 11.4*1010 kW 3.3*1010 kW Distributed energy systems running with investment savings, improve energy efficiency; enhance security and flexibility of power systems and other features.
The main way of distributed energy systems using waste heat is hot, cold, hot water, so the heat effect on the reasonableness of the use of distributed energy system energy efficiency is critical.
Specific factors shown below: Figure 1 Distributed major factor in the development of energy systems analysis diagram Figure 1 analyzes the various factors will affect the development of distributed energy systems in distributed energy systems research and development process, there are still many problems to be solved, such as energy policy and related professional and technical aspects of the problems.
Distributed Energy Efficiency Analysis: Distributed energy systems that can use cleaner fuels such as natural gas, coal bed methane, also can use waste resources, such as coke oven gas, methane,also can take advantage of renewable energy sources, such as water, wind, and solar energy.
Table 2 Compares the Chinese and global renewable energy reserves Analysis Table Item Solar Wind Biomass Geothermal Water China 7*1012 kW 1.6*108 kW 6.3*108 kW 4*108t 9.3*1019 J Global 1.74*1014 kW 3.5*1012 kW 8.96*109 kW 11.4*1010 kW 3.3*1010 kW Distributed energy systems running with investment savings, improve energy efficiency; enhance security and flexibility of power systems and other features.
The main way of distributed energy systems using waste heat is hot, cold, hot water, so the heat effect on the reasonableness of the use of distributed energy system energy efficiency is critical.
Online since: December 2013
Authors: Yu Fan Chen, Li Bo Song, Xin Ying He, Zhi Huai Xiao
During the operation process, there are quite a lot of influencing factors, for instance, the upstream and downstream water level, ship size, water level in ship reception chamber and so on.
To achieve the dynamic simulation, parameters like water level, current and voltage should be dynamic.
For example, when we click the “Boat into the chamber” button, the boat in the display area will start to move, but when it reach the reception chamber, there will be a pop-up page “Upstream Status Parameters” showing the dynamic status parameters of the chamber, and when they reach the specified condition(tail-bay bock gate open, downstream docking and seal docking in place, anti-collision beam in place, water level in chamber is between 2.5±0.08m), the next step will be triggered.
It may play the role as a professional knowledge base or a fault diagnosis library for power plant.
Acknowledgment *This work was supported by National Natural Science Fund of China under Grants 51379160 References [1]Song Zheng, Shi Duanwei, “Visualization of the dynamic property parameters of large vertical ship-lifts”, Water conservancy & electric power machinery,.
To achieve the dynamic simulation, parameters like water level, current and voltage should be dynamic.
For example, when we click the “Boat into the chamber” button, the boat in the display area will start to move, but when it reach the reception chamber, there will be a pop-up page “Upstream Status Parameters” showing the dynamic status parameters of the chamber, and when they reach the specified condition(tail-bay bock gate open, downstream docking and seal docking in place, anti-collision beam in place, water level in chamber is between 2.5±0.08m), the next step will be triggered.
It may play the role as a professional knowledge base or a fault diagnosis library for power plant.
Acknowledgment *This work was supported by National Natural Science Fund of China under Grants 51379160 References [1]Song Zheng, Shi Duanwei, “Visualization of the dynamic property parameters of large vertical ship-lifts”, Water conservancy & electric power machinery,.
Online since: February 2019
Authors: Vyacheslav A. Dudko, Boris P. Yur'ev
Tube cooling is provided with water in counterflow.
The cooler is realized as a heat exchange unit of double pipe type, where water is used as cooling fluid Table 1.
drainage from cooler; 5 – water supply to cooler; 6 – protective gas supply; 7 – through-type electric furnace; 8 – muffle; 9 – annealed tube; 10 – tube feeding for annealing Fig. 2.
To improve the heat transfer water is fed to the cooler bottom and drained from the top.
Marjin, Calculations for Melting and Heating Furnaces, Komsomolsk-on-Amur: Federal State Budget-Funded Educational Institution of Higher Professional Education Komsomolsk-on-Amur State Technical University, 2015
The cooler is realized as a heat exchange unit of double pipe type, where water is used as cooling fluid Table 1.
drainage from cooler; 5 – water supply to cooler; 6 – protective gas supply; 7 – through-type electric furnace; 8 – muffle; 9 – annealed tube; 10 – tube feeding for annealing Fig. 2.
To improve the heat transfer water is fed to the cooler bottom and drained from the top.
Marjin, Calculations for Melting and Heating Furnaces, Komsomolsk-on-Amur: Federal State Budget-Funded Educational Institution of Higher Professional Education Komsomolsk-on-Amur State Technical University, 2015
Online since: April 2023
Authors: Inam Ul Haq, Zunair Arslan, Abdul Waheed, Zeeshan Abdullah, Muhammad Ajmal, Abdul Waheed Anwar, Asifa Mubashar, Shan Ahmad, Imrza Imran Aziz Baig
Deionized water was obtained from the Mechanical Department, University of Engineering and Technology Lahore.
This is the high-temperature stage; after 30 minutes of stirring at a temperature of 35 ℃, 230 ml of deionized water (DI) was gradually added over a period of 1 hour and 15 minutes, with constant stirring, raising the temperature to 98 ℃.
With the addition of DI water at this high temperature, the color gradually shifted from purplish-brown to orange-brown and then reddish-brown, indicating significant oxidation.
The combination was then given 700 ml of DI water while still maintaining a 98 ℃ temperature.
Expanding the experiment, 30ml of DI water was taken in a beaker and gradually added with 3ml of PVA to a mechanical stirrer, followed by heating at 78 ℃ for 90 min [13]; this way, 10% PVA was prepared.
This is the high-temperature stage; after 30 minutes of stirring at a temperature of 35 ℃, 230 ml of deionized water (DI) was gradually added over a period of 1 hour and 15 minutes, with constant stirring, raising the temperature to 98 ℃.
With the addition of DI water at this high temperature, the color gradually shifted from purplish-brown to orange-brown and then reddish-brown, indicating significant oxidation.
The combination was then given 700 ml of DI water while still maintaining a 98 ℃ temperature.
Expanding the experiment, 30ml of DI water was taken in a beaker and gradually added with 3ml of PVA to a mechanical stirrer, followed by heating at 78 ℃ for 90 min [13]; this way, 10% PVA was prepared.