Review on Properties, Performance, and Application of Geopolymer Concrete

Concrete infectious together with normal Portland cement (PC) is notable on the planet for its reliability, durability, and versatility. PC concrete is the second most used material next to w Concrete infectious together with normal Portland cement (PC) is notable on the planet for its reliability, durability, and versatility. PC concrete is the second most used material next to water. Even though OPC is so popular in construction, it is not ecofriendly due to enormous energy consumption in its production and due to emission of enormous CO2.This is a serious challenge to sustainable development. Endeavors are expected to build up a natural amicable structural designing development material for limiting the emission of greenhouse gases to the environment. The Endeavour to develop an environment friendly concrete had offered many alternatives. One eminent among them is zero cement concrete. Zero Cement Concrete is an improved version of Geo-polymer Concrete wherein the thermal activation of the binding materials such as GGBS and FA are done with the help of alkaline solution namely (NaOH) and (Na2SiO3). Contrasting to (PC), the creation of geopolymers has a relatively higher quality of strength, durability, and workability. This current paper is a review on geopolymer concrete properties. ater. Even though OPC is so popular in construction, it is not ecofriendly due to enormous energy consumption in its production and due to emission of enormous CO2.This is a serious challenge to sustainable development. Endeavors are expected to build up a natural amicable structural designing development material for limiting the emission of greenhouse gases to the environment. The Endeavour to develop an environment friendly concrete had offered many alternatives. One eminent among them is zero cement concrete. Zero Cement Concrete is an improved version of Geo-polymer Concrete wherein the thermal activation of the binding materials such as GGBS and FA are done with the help of alkaline solution namely (NaOH) and (Na2SiO3). Contrasting to (PC), the creation of geopolymers has a relatively higher quality of strength, durability, and workability. This current paper is a review on geopolymer concrete properties

The Effect of Fiscal Decentralization on Economic Development Performance in Indonesia

The purpose of this study is to test and analyze the influence of fiscal decentralization on development performance in Indonesia using the structural equation model approach. The data uses panel data, from 34 provinces and in 2015-2019 sourced from the Ministry of Finance of the Republic of Indonesia and the Central Bureau of Statistics (BPS). Data analysis using structural equation model approach with the help of Smart-PLS 3.3.3 software. The outer model evaluation results concluded that all indicators of fiscal decentralization variables and economic development performance variables are valid. The most powerful indicator reflecting the latent variable of fiscal decentralization is the ratio of regional income and economic development performance is an indicator of economic growth.  The results of the evaluation of the inner model found that fiscal decentralization performance has a positive and significant influence on development performance. The existence of fiscal inequality among provinces in Indonesia causes uneven ratios of capital expenditures and public incomes as seen from the low indicator in reflecting decentralization of fiscal and economic performanc

Community development through Islamic microfinance approach: The experience of Daarut Tauhid Peduli Bandung, Indonesia

The fields of zakat-based microfinance and community development are not often placed under the same theoretical lens that both aim to empower disadvantaged people. This study investigates the experiences of borrowers in the implementation of zakat-based microfinance and analyses the different driving factors they applied in their choice of the zakat-based microfinance of Daarut Tauhid Peduli in Bandung, Indonesia. It applies a community development framework, based on the five characteristics, to explore this Islamic microfinance approach as an effective community development program, which has a religious dimension. Primary data were obtained from semi-structured interviews with the borrowers along with participant observation at a weekly majelis meeting, and these were triangulated with information cross-checked with the management staff of the institution. The findings demonstrate three out of five characteristics of the zakat-based microfinance approach as an effective community development program. They include characteristics in constantly maintaining power relations between borrowers and the institution, increasing capability and ability of borrowers to be more independent and empowered, and long-term duration of the program and sustainability. The findings showed that spiritual factors appear to have been an additional driving force on top of economic and non-economic factors for most borrowers choosing this particular program

Treatment of Multiple Common Warts by Intralesional Immunotherapy: Review Article

Background: Human papillomavirus (HPV) is the most prevalent cause of warts on the skin and mucous membranes of the human body. With the aid of a variety of destructive and immunotherapeutic methods, wart therapy remains a major difficulty. Antigen immunotherapy by intralesional technique uses the immune system's ability to recognize viral, bacterial, and fungal antigens that elicit a delayed-type hypersensitivity reaction, not only to the antigen but also to the wart virus, which in turn boosts the immune system's ability to recognize and remove HPV. All lesions on the body, not just the injected one, could be destroyed by this boosted immune response. Different antigens, including Candida and pure protein derivative (PPD), have been shown to be useful in the treatment of various wart forms. Objective: Intralesional immunotherapy for numerous common warts is to be evaluated for its effectiveness. Conclusion: There has been substantial research into the use of intralesional vaccinations and organic antigens to treat warts, with good results of effectiveness

Load and Household Profiles Analysis for Air-Conditioning and Total Electricity in Malaysia

Load profile of household air-conditioning (AC) and total electricity consumption is essential to increase the stability of the energy demand on the grid. Therefore, field measurements on time series data of total and AC electricity consumption from 20 households were conducted from March 2016 to August 2017. The questionnaire survey was carried out simultaneously to grasp the profile of each family. The average total daily and AC consumption were 14.5 kWh/day and 3.9 kWh/day, respectively. The average hourly electricity consumption for total was 0.6 kWh/hour, meanwhile for AC was 0.2 kWh/hour. About 20% of the total peak demand was contributed by the consumption of AC. The indoor air temperature was measured in the bedroom (BR) when AC was switched ON and OFF with an average of 27 ∘C and 29 ∘C, respectively. However, the indoor air temperature in the living room (LR) was 2∘C and 1∘C higher if compared to BR for both conditions. Based on the questionnaire survey, 92% of the occupants preferred a temperature setting below than the level recommended by the Malaysian standard i.e., 24 ∘C. These results might be beneficial to understand the occupant behavior of electricity demand in Malaysia for designing smart grid energy systems in the future

Short-Term Measurements of Household Electricity Demand During Hot Weather in Kuala Lumpur

The aim of this study was to conduct short-term measurements on household electricity demand under hot weather conditions in a residential area in Kuala Lumpur. The measurements included total and air conditioner (AC) electricity consumption of 10 households in an apartment building as well as outdoor air temperatures, which were collected from March to May 2016. Results indicated that the average AC electricity consumption contributed to a major portion of total household electricity consumption, which ranged from 19.4 to 52.3% during the measurement period. Additionally, 1-minute interval time series data indicated household energy consumption more accurately than 30- or 60-minute interval

Thermal comfort and occupant adaptive behaviour in university offices with cooling and free running modes

This paper presents results of a small-scale field survey of occupant thermal comfort and adaptive behaviour, conducted in university office buildings in Fukuoka, Japan (August 2014). A comparison was made between offices with cooling (AC) and free running (FR) modes. Indoor environmental conditions were measured, simultaneously with administration of a questionnaire survey. Most Predicted Mean Vote (PMV) values were higher than Thermal Sensation Vote (TSV) values for both cases. This indicates that the PMV model over-predicted actual thermal response. The thermal response in FR offices was found to be more sensitive than in those with AC; additionally, respondents could tolerate a narrower range of variation in indoor operative temperature. Occupants’ adaptive behaviours in AC office were more limited compared to those of respondents with FR. This indicates amenable thermal conditions in A/C-controlled indoor environments, with occupants having no wish to make changes

Using Markov Chains and Data Mining Techniques to Predict Students’ Academic Performance

In this study, the academic performance of students from the E-Commerce department at Palestine Technical University – Kadoorie is predicted using a Markov chains model and educational data mining. Based on the complete data regarding the achievements of the students from the 2016 cohort of students obtained from the university’s admissions and registration department, a Markov chain is built, in which the states are divided according to the semester average of the student, and the ratio of students in each state is calculated in the long run. The results obtained are compared with the data from the 2015 cohort, which demonstrates the efficiency of the Markov chains model. For educational data mining, the classification technique is applied, and the decision tree algorithm is used to predict the academic performance of the students, generalizing results with an accuracy of 41.67%