349 research outputs found
Integrasi Nilai Islami dan Budaya Aceh Berdasarkan Kurikulum Karakter
Indonesia covers a wide area that is usually called ‘dari Sabang sampai Merauke\u27 (from Sabang in westernmost point to Merauke to easternmost point) as mentioned in lyrics of a national folk song sang by students from elementary to high school. In its thousand islands live communities speaking various languages, living different cultures, characters and traditions that have become ethnical identities. The education and culture in a community are implemented from older to younger generations within a wide range of time and preserved well by the descendants. Indonesian characters are identical with oriental culture where people usually live in groups, mutual cooperation (‘gotong royong\u27), helpful and religious. Religion, education, culture, and tradition become basic norms is human society that have to be preserved and improved by individual, family, communities, and government to live peacefully. Aceh province, who has implemented Islamic law called sharia since a decade ago, have various art performances, languages, folk dance, traditional costume, and traditional foods that represent Aceh Islamic tradition that is harmonious with its slogan Mecca\u27s Veranda (Serambi Mekkah). The effort to implement character\u27s based curriculum in all schools in Aceh is a good chance to raise children to become adult that have moral ground and intelligent who understand technology and faith in facing globalization. By integrating religious and traditional values in education, we are expecting the students to have those good life skills in living social life in Islamic way
Predictability of complex modulus using rheological models
The objective of this study was to investigate the advantages and disadvantages of several linear visco-elastic rheological models applied to the unmodified and polymer-modified bitumens. It was found that all the models studied can be used to predict the linear visco-elastic of unmodified bitumens, aged and unaged samples reasonably well. In contrary, this condition was not really applicable on polymer-modified bitumens particularly for the unaged samples. The measured and predicted data was assessed using the discrepancy ratio (Ri), Mean Normalized Error (MNE) and Average Geometric Deviation (AGD) goodness of fitting statistical analysis. From the study, the modified Sigmoidal and Generalized Logistic Sigmoidal models were observed to be the most outstanding models, followed by the Christensen Anderson and Marasteanu (CAM), Christensen and Anderson (CA) and 2S2P1D (2 springs, 2 parabolic elements and 1 spring) models. The presence of semi-crystalline waves and elastomeric structures in the mixtures render the breakdown of time temperature equivalency principle
Current review towards the new best practices of Corporate Real Estate Management (CREM) in Malaysia
Corporate Real Estate (CRE) is referring to land and buildings owned by companies which are not primarily in the real estate business used for operational purpose. CRE covers the entire range of activities. Awareness of knowledge of CRE in Malaysia lacks because the researcher found that the operation of properties owned by a few large companies is undermanaged and underused. This review paper focuses on the definition of corporate real estate (CRE), components of CRE, and the current practice in the industry. This paper a desk analysis reviewing the literature on general management of the corporate real estate. By using the secondary data such as Company Annual Report, Previous studies and other relevant sources. There are several different issues to examine along the way, from the business strategies, Constituent and tools to help make the right decisions. It draws a framework for CRE analysis. From this paper, we can find the issue to improve the current practice on the CRE in Malaysia
Simulation of U-shaped plastic optical fiber ethanol sensor
The prediction of optical loss in different bending diameter of U-shaped POF sensor towardvariation of ethanol’s refractive indices was investigated using ray-tracing method perform byZemax software. It can provide information on how the propagation ray is perturbed bydifferent bending diameter of U-shaped POF. There are five designs of POF models werepre-drawn with different bending diameter; 2.0cm, 2.5cm, 3.0cm 3.5cm and 4.0cm. From theresults, U-shaped with 2.5 cm bending diameter has shown the most sensitive bendingdiameter as compared to the rest. Either with the presence of cladding layer or not thesensitivity detected was 0.014 x10-4 Watts/Vol%Keywords: ray-tracing; Zemax software; U-shaped POF sensor; ethanol sensor
An overview of moisture damage performance tests on asphalt mixtures
This paper presents a review of moisture damage performance tests on asphalt mixtures. The moisture damage remains to be a detriment to the durability of the Hot Mix Asphalt (HMA) pavement. Moisture damage can be defined in forms of adhesive failure between bitumen and aggregates and cohesive failure within bitumen. Aggregate mineralogy, bitumen characteristics and anti-stripping additive dominantly influence the performance of asphalt mixtures towards moisture damage alongside construction methods, climate and traffic loading. Various laboratory test methods have been developed to quantify the moisture damage performance of asphalt mixtures by resembles the action in the field, including qualitative test such as Boiling Water Test (ASTM D3625) and quantitative tests such as Modified Lottman Test (AASHTO T283). Both of these tests consist of two phases, which are conditioning and evaluation phase. This paper will review the effectiveness of the selected available tests based on various asphalt mixtures materials. Generally, this study indicates that asphalt mixtures consisted of limestone aggregates, modified bitumen and addition of anti-stripping additives will provide more resistant towards moisture damage
Evaluating potential of diatomite as anti clogging agent for porous asphalt mixture
Clogging is a major problem that occurs throughout the service life of porous asphalt due to the open nature of the mixture itself. Diatomite with characteristic of abrasiveness and porous structure seems to have potential in order to remove the clogging materials that mainly consists of soils. This study aims to investigate the effects of diatomite as anti-clogging agent on the permeability rate and strength of porous asphalt. The porous asphalt samples were prepared using Malaysia aggregate gradation and polymer modified bitumen of PG76 was used as the binder. This study focuses on clay as the clogging material at different concentration. A fixed amount of 0.5 g/L diatomite was applied to the porous asphalt samples as an anti-clogging agent prior to clogging cycles. The permeability test and resilient modulus were then conducted at different clogging concentrations (0.5, 1.0, 1.5 g/L) and cycles, with and without diatomite. It was found that samples with diatomite have a higher permeability rate compared to those without any application of diatomite after a few clogging cycles. As the clogging cycles increase, the clogging materials have trapped and filled up the voids in the porous asphalt samples and increase the resilient modulus result
Characterization of absorption loss for UWB body tissue propagation model
The paper presents the results of absorption loss for body tissue propagation model which is characterized by the specific absorption rate (SAR) investigated on heterogeneous normal and tumour affected tissues of numerical human breast models. The absorption loss is evaluated using UWB signals of 4 to 8 GHz. The analysis of the study shows that the absorption loss in the body tissue models increases with frequency and varies with the change in dielectric properties of body tissue models. Deviation of absorption loss up to 0.9 dB is observed in tumour affected model compared to normal model
Physical properties of palm oil boiler ash modified bitumen with Rediset
This study examines the physical properties of a 60/70 penetration grade bitumen modified using warm mix asphalt (WMA) additive, Rediset and palm oil boiler ash (POBA) as a modifier. Modified binders were prepared by adding 2% of Rediset with different POBA contents (3, 5, 7, and 9%) through wet mixing process. Physical properties of modified bituminous binder were obtained from penetration, softening point, rotational viscosity and ductility tests. The addition of 7% POBA in WMA binder has the best characteristics in term of its physical properties. The penetration values, softening point temperatures and ductility characteristics show inconsistent patterns. However, the rotational viscosity of each combination had decreased with the increment of temperature even though the trend was not significantly constant. Penetration index (PI) showed an increment with 3 and 5% and decrement pattern on 7 and 9% as well as penetration viscosity number (PVN) showing an inconsistent decrement with the addition of POBA. From the results, it can be concluded that using POBA in WMA binder for pavement construction is a viable option and can be further investigate
Extraction of parabens from cosmetic and environmental water samples coupled with uv-visible spectroscopy
An effective and fast vortex-assisted dispersive liquid–liquid extraction method was developed for the extraction of
paraben in cosmetic samples and water samples. The paraben was determined and quantifi ed using ultraviolet-visible
(UV-Vis) spectrometry. A response surface methodology (RSM) based on the central composite design was used for
the optimization of factors (composition of the extractant, volume of extractant, extraction time, centrifugation time,
and centrifugation velocity) affecting the extraction effi ciency of the procedure. The optimum parameters for vortexassisted
dispersive liquid–liquid extraction (VA-DLLE) are: chloroform used as the extractant solvent, 5 ml volume
of extractant, 3 min extraction time, 5 min centrifugation time, and 2400 rpm centrifugation velocity. The limit of
detection (LOD) and the limit of quantifi cation (LOQ) for paraben are 0.0476 and 0.1442 μg/mL, respectively.
Spiked cosmetic samples have the extraction recoveries in the range of 81.2–96.8%, whereas spiked water sample
extraction recoveries were in the range of 88.8–100.63%. Each sample was repeated (n = 2), with a relative standard
deviation of <5.74% for cosmetic samples and <9.03% for water samples. In conclusion, this extraction method is
fast and inexpensive for the extraction of paraben
Aerodynamic Performances of MAV Wing Shapes / N. I. Ismail...[et al.]
In general, there are four common Low Reynolds Number wing’s designs for fixed wing Micro Air Vehicle (MAV) which known as Rectangular, Zimmerman, Inverse Zimmerman and Ellipse wing. However, each wing design produces diverse performance and in fact the aerodynamic comparison study among the wings is still lack. Thus, the objective of this study is to evaluate the basic aerodynamic performance found on Rectangular, Zimmerman, Inverse Zimmerman and Ellipse wing designs with view to find the optimal wing shape for Micro Air Vehicle (MAV) configuration. Here, each design was analysed based on simulation works. The results show that at stall angle, the Ellipse wing has maximum lift coefficient ( ) recorded at 1.12 which is at least 4.33% higher than the other wing designs. Based on drag coefficient ( ) analysis, the Inverse Zimmerman Wing exhibited the lowest minimum drag value at 0.033 which is 8.45% lower than the other wing’s designs. In moment coefficient analysis, the results reveal that the Inverse Zimmerman Wing has produced the steepest curve slope value at -0.36 which is 17.39% higher than the other wings. The aerodynamic efficiency ( ⁄) study has also revealed that Zimmerman Wing recorded the highest ⁄value at 6.80 and at least 1.35% higher than to the other wing. Based on these results, it was concluded that Zimmerman wing has the highest potential to be adopted as MAV wing due to its optimal aerodynamic efficiency
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