Sustainable Materials Used as Lightweight Aggregate :(An Overview)

Lightweight aggregates (LWA) are building materials with a lower bulk density than standard construction aggregates. In recent years, the contribution of industry to the circular economy has become a serious concern. Among these, the mining sector is confronted with significant problems relating to the management of a huge quantity of generated waste. The major contemporary task is to address a number of interconnected challenges, including waste management and recycling, conservation of scarce natural resources, reduction of energy use, and reduction of greenhouse gas emissions. Natural aggregates are consumed by the construction materials industry in the range of 8 to 12 billion tons per year. According to reports, the construction materials sector consumes the most energy and scarce natural resources (rocks, aggregates, and water) while also emitting greenhouse gases. In general, using waste material as lightweight aggregate decreases the concrete’s overall weight. The materials used as lightweight aggregate in concrete are discussed in this study. According to research, utilizing trash as a lightweight aggregate not only improves the characteristics of concrete but also gives a sustainable approach to minimize global waste.

Projection Micro Stereolithography (PµSL) to 3D Print a Micro-Optofluidic Device for Two-Phase Slug Flow Detection: a Comparison with a PDMS-Based Device Manufactured by Resin Casting

In this work, the use of Projection Micro Stereolithography (PmSL) to 3D print a micro-optofluidic device for two-phase slug flow detection is presented. For comparison purposes a PDMS based device obtained by casting was also manufactured. The micro-optofluidic device has a microfluidic T-junction with a micro-optical section that consists of two optical fiber insertions used for two-phase slug flow detection. The working principle in the detection is based on a different light transmission correlated to the fluid interfering with the laser beam in a micro-channel section. The 3D printed material is fully characterized in terms of its surface properties and compared to PDMS used for standard construction using a master-slave casting procedure. The two devices were tested after the setup parameters for the detection were optimized using ANOVA for the 3D printed device. The comparisons of the two devices revealed that 3D printed device can be used for two-phase slug flow detection but future research is still need to obtain a 3D printed resin allowing to outperform PDMS.

Orthogonal Tits Quadrangles

We show that every 4-plump razor-sharp normal Tits quadrangle X is uniquely determined by a non-degenerate quadratic space whose Witt index m is at least 2. If this Witt index is finite, then X is the Tits quadrangle arising from the corresponding building of type B_m or D_m by a standard construction.

Practice and Reflection on the Application of Blockchain Technology in the Guangdong-Hong Kong-Macao Greater Bay Area

Blockchain technology has now entered the 3.0 era with solutions of“Blockchain Plus Industry”. As a technological innovation and industry-leading region, the Guangdong-Hong Kong-Macao Greater Bay area has inherent advantages in the development of blockchain technology. How blockchain can lead the development of industry ecology in the future is a question worthy of our in-depth discussion. By analyzing the policy support and basic status of the Guangdong-Hong Kong-Macao Greater Bay Area, this paper sorted out the structure of the four-level characteristic development mode of blockchain technology, summarized the impossible triangle of technology, incompatibility issues, standard construction, supervision and other issues, and putforward relevant suggestions for the development of the blockchain in the Guangdong-Hong Kong-Macao Greater Bay area.

CONSTRUCTION OF THE INTEGRATED INDICATORS OF SOCIO-ECONOMIC DEVELOPMENT OF THE COUNTRY (REGION)

Today, a serious problem is the formation of crisis situations in the economic development of the country (region), which are determined by a set of the various indicators. The main causes of the crisis are both external factors, that is, factors of economic globalization, and internal factors that are associated with serious imbalances in social and economic development. Each group of these factors can lead to an increase in the tension of crises, therefore, a timely assessment and analysis of the formation of crisis situations is very important. The assessment is carried out on the basis of indicators that characterize the socio-economic development of the country (regions). Changes in these indicators allow us to calculate the intensity of economic development. The aim of the work is to form and substantiate a system of indicators that characterize the economic and social development of the country based on the analysis of the current statistical indicators of socio-economic development of the country (region) and build a comprehensive integrated indicator of tension. The paper proposes a methodology for calculating the integral indicator of socio-economic tension in the country, which includes 9 main stages: collection of the indicators of socio-economic development; formation of a matrix of input data of indicators; standardization of the information space; differentiation of signs into stimulants and de-stimulants; building a standard; determination of the distances between the object and the standard; construction of an integral indicator of the tension of socio-economic development; interpretation of the integral indicator of the tension of socio-economic development. Thus, the work has formed and substantiated a system of the indicators characterizing the economic and social development of the country on the basis of an analysis of the aggregate of indicators of the socio-economic development of the country (region) in the statistical reporting and determined the integral indicators of tension separately for the social and economic spheres.

Inspection of Biomimicry Approaches as an Alternative to Address Climate-Related Energy Building Challenges: A Framework for Application in Panama

In the Panama context, energy consumption in the building sector is mostly related to the conditioning of indoor spaces for cooling and lighting. Different nature strategies can be mimic to strongly impact these two aspects in the building sector, such as the ones presented here. A comprehensive analysis regarding literature related to biomimicry-based approaches destined to improve buildings designs is presented here. This analysis is driven by the increasing energy regulations demands to meet future local goals and to propose a framework for applications in Panama. Such biomimicry-based approaches have been further analyzed and evaluated to propose the incorporation of organism-based design for three of the most climate types found in Panama. Consequently, a SWOT analysis helped realized the potential that biomimicry-based approaches might have in improving the odds of in meeting the local and global regulations demands. The need for multidisciplinary collaboration to accomplish biomimicry-based-designed buildings, brings an increment in the competitivity regarding more trained human-assets, widening the standard-construction-sector thinking. Finally, the analysis presented here can serve as the foundation for further technical assessment, via numerical and experimental means.

A PRELIMINARY STUDY ON CLASSIFICATION STANDARDS OF NATURAL RESOURCES UNDER THE INSTITUTIONAL REFORM

The survey and monitoring system of natural resources is the basis for finding out and monitoring the background data in the new era. The classification standard is an important cornerstone in the survey and monitoring system. The classification standard appears in the whole process of natural resources, such as survey, monitoring, evaluation, planning and control etc. Classification results are widely used in natural resource asset management, territorial space use controlling, ecological protection and restoration. Therefore, only a classification standard with the unified, scientific and practical characteristics is constructed, a survey and monitoring system with “six unifications” can be built. This paper refines the existing status and the main problem of existing classification standards, and then puts forward the construction ideas and three suggestions for the new classification standards, which hoping to provide a reference for local survey and monitoring pilots and national classification standard construction.

Kajian Kelayakan Sumber Air Tanah UIN Sunan Ampel Surabaya dalam Rangka Menuju Eco Campus

UIN Sunan Ampel requirements of water are fulfilled from groundwater sources. The groundwater sources of UIN Sunan Ampel are from wells where the water is taken with a water pump. The main problem related to the use of groundwater as a fulfillment of water needs is the decline of its quality. The purpose of this study is to analyze the quality of groundwater at UIN Sunan Ampel, to know the quality of groundwater in UIN Sunan Ampel reviewed by Minister of Health Regulation No. RI. 32 of 2017, Formulating the right steps in improving the quality of ground water at Sunan Ampel UIN towards ECO CAMPUS. This research is a descriptive study, in this study the quality of groundwater sources in Sunan Ampel Surabaya UIN will be described base on 3 parameters of water quality (physics, chemistry and biology). The results indicate differences in groundwater quality at UIN Sunan Ampel in terms of physical, chemical and biological parameters. The quality of groundwater sources in UIN Sunan Ampel Surabaya 95% fulfills the standard of environmental health standards and water health requirements for government sanitation hygiene requirements based on physics parameters, but it do not fulfilled the quality standards based on chemical parameters (in the form of pH) and also biology parameters. Improving the quality of ground water at UIN Sunan Ampel Surabaya is needed by improving the management system of sewers and latrines as well as standard construction of wells.

Transmission Congestion & Voltage Profile Management using Modular Multi Level UPFC

Modular multi level convertor based UPFC (MMC-UPFC) has become one amongst the foremost rising convertor typologies for medium & high-powered applications. In the last years, outstanding researches are done concerning to Transmission congestion and voltage profile management victimization MMC-UPFC. Thus, standard construction convertor UPFC has been a major topic for each industrial applications and tutorial surveys. In this paper, an outline of the ability circuit analysis and operation principle of the standard construction of MMC-UPFC topology is mentioned. Totally different sub-module typologies are mentioned. Then, advantage sides of the MMC-UPFC which of application areas is reviewed. The proposed technique additional appropriate to avoids Transmission congestion & additionally for higher voltage profile management than previous ways, The proposed system used for MMC-UPFC better improvement of voltage profile and effective congestion relief also the entire function a promising answer for sensible applications, particularly once the quantity of sub-modules is fairly high. Simulation and experimental results verify the effectiveness of the proposed