45 research outputs found
CONVERTING TO ISLAM
No full textDespite the fact that early Chinese expeditions to this country were led by a Muslim Chinese named Zheng He (Cheng Ho), the overwhelming majority of Chinese Indonesians currently embrace religions other than Islam. This article aims to give a first-hand account of a Chinese woman who converted to Islam and the stereotypical opinion commonly held among Chinese Indonesians, particularly those living in Pontianak, about it. This article also looks at why a conversion to Islam is always seen with a puzzled frown.
Keyword: Convert, Islam, Chiness
Meningkatkan Keterampilan Bercerita dengan Metode Kamishibai
No full textThis quantitative research using quasi-experimental method aims to examine whether the kamishibai method is effective in improving the storytelling skills in English. As for the research design used was one group pretest posttest. To fnd out about the response of subjects in the study regarding the method of kamishibai, the researcher also distributed questionnaires. The results of the research indicated that based on the statistical calculation using formula of the paired samples t-test, the kamishibai method was effective in improving the students’ storytelling ability; and based on the responses of the respondents upon being tabulated, it was known that the majority of respondents (70%) agreed that the kamishibai method helps them to tell stories better than before. The average score of the tabulated responses of the respondents was 41 falling within the interval of 37–45, which means that the average respondent agreed with the effectiveness of the use of kamishibai method to improve the ability of storytelling in the English.</jats:p
Mechanistic insights into water adsorption and dissociation on amorphous TiO2-based catalysts
No full textDespite having defects, amorphous titanium dioxide ( ) have attracted significant scientific attention recently. Pristine, as well as various doped catalysts, have been proposed as the potential photocatalysts for hydrogen production. Taking one step further, in this work, the author investigated the molecular and dissociative adsorption of water on the surfaces of pristine and doped catalysts by using density functional theory with Hubbard energy correction (DFT+U). The adsorption energy calculations indicate that even though there is a relatively higher spatial distance between the adsorbed water molecule and the surface, pristine surface is capable of anchoring molecule more strongly than the doped as well as the rutile (1 1 0) surface. Further, it was found that unlike water dissociation on crystalline surfaces, water on pristine catalyst experience the dissociation barrier. However, this barrier reduces significantly when is doped with , providing an alternative route for the development of an inexpensive and more abundant catalyst for water splitting
Life Cycle Assessment of Aluminium for Engineering Application
No full textMaterial of aluminium alloys is a typical material applied in Aerospace Engineering. In order to conduct life cycle assessment of aluminium, a module based on Microsoft Excel has been developed. Through this module, COSTing Life-cycle In material ProcesseS (COSTLIPS) can be made. This paper presents the methodology to the development of the COSTLIPS and its results of estimation based on typical processes for manufacturing aluminium components. Through the COSTLIPS, it can be estimated not only processing costs, but also materials input and output, energy consumed, and wastes emitted. COSTLIPS could be a useful tool to help understand economic, energy and environmental impacts when an aluminium component/part used in engineering. Copyright © 2008 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved
A seven-factor procedural analysis of safety culture Known measurement - a case study at KLM E&M
No full textAerospace Management and Operations DepartmentAerospace Engineerin
L’actio in factum come surrogato dell’azione di ripetizione? A proposito di Iul. 60 dig. D. 39.6.18.1 e Iav. 13 epist. D. 19.5.10
No full textThe study touches upon the theme of the relationship between condictio and actio in factum in the matter of innominate contracts. More precisely, the question arises whether the atio in factum could have performed a merely repetitive function, rather than lead to the protection of the negative interest. In this regard the author deals with Iul. 60 dig. D. 39.6.18.1 and Iav. 13 epist. D. 19.5.10, on the subject of donatio mortis causa and (quasi-)usufruct respectively. What the two texts have in common is the fact that in both cases the use of an actio in factum pretoria (pursuant to Gai 4.46) is envisaged in a purely repetitive function and that for both cases a relationship with the issue of the protection of nova negotia has been hypothesized, in particular for Iav. 13 epist. D. 19.5.10. The author’s conclusions go in the direction of excluding such a connection
Development of a Multi-Event Trajectory Optimization Tool for Noise-Optimized Approach Route Design
No full textThis paper presents preliminary results from an ongoing research effort towards the development of a multi-event trajectory optimization methodology that allows to synthesize RNAV approach routes that minimize a cumulative measure of noise, taking into account the total noise effect aggregated for all inbound flight movements taking place within an operational year. This new development is an extension of a tool called NOISHHH which was developed earlier for the synthesis of single-event noise abatement RNAV trajectories into and out of airports. Although the presented numerical examples pertain to a specific airport in the Netherlands, viz. Rotterdam the Hague airport, this study focuses on the development of a generic methodology that can be applied to any given airport. Initial application of the adapted optimization framework to the design of noise abatement RNAV approach routes at Rotterdam The Hague airport reveals a significant potential for reducing the number of people highly annoyed due to annual noise exposure relative to the existing situation.Control & OperationsAerospace Engineerin
Modeling the effect of night time penalties on commercial and business flights for regional airport noise and economics: Rotterdam Airport case study
No full textNoise is one of the main concerns of airports around the world. Several measures have been taken by regulators to reduce noise at airports. Some of these measures are meant to control noise at major or busy airports; however, certain operational restrictions (quota, curfew, and budget) are also implemented throughout the whole country regardless of the role and the size of the airports. An empirical example, using the Rotterdam Airport, a regional airport in the Netherlands, illustrates how regional airport should determine its night surcharges policies, especially with different type of aircraft categories. In this research, the night surcharges received from Business Jet category and Commercial aircraft category are being compared. The results indicate that the night surcharges did not compensate for the number of day time flight movements and potential revenues losses. Regional airport may need to be more selective in setting the night surcharges in order to maximise its revenues.Aerospace Engineerin
Developing a strategic framework for an airline dealing with the EU emission trading scheme
No full textThe European Commission has decided that the aviation sector will be included in the EU Emission Trading Scheme (ETS) in 2012. This has significant impacts on the business and the strategy of airlines. All of a sudden, airlines must possess emission rights in order to be able to operate their aircraft. Given the uncertainty over how exactly the EU ETS is going to be implemented in the next few years and the unexpected fluctuations in prices of fuel and the CO2 emission rights, airlines are faced with a multifaceted challenge: how to best incorporate EU ETS in the business strategy of an airline? In order to support airlines with this complex process, in this research project a strategy model with different regulatory scenarios is developed, with which the exposure of an airline to EU ETS can be calculated. The model has been piloted in an airline to determine how future airline strategy should be adopted based on the regulatory environment. It is clear from the analysis of the different scenarios, that every regulatory scenario has its own optimal strategy, ranging from increasing fuel efficiency to using alternative types of fuel.Aerospace Engineerin
The Development and Application of a Value-Driven Aircraft Maintenance Operations Performance Assessment Model combined with Real Options Analysis
No full textThis research paper presents the results from the development of an Aircraft Maintenance Operations Performance Assessment Model (AMOPAM). The AMOPAM is able to assess the differences in performance in between two different states or scenarios of aircraft maintenance operations and is able to capture these differences both in the form of differential- (?V) and financial value (NPV). The AMOPAM is based on the combination of the Value Operations Methodology and Real Options Analysis. The input variables are Key Performance Indicators that have been identified as value drivers that can capture the operational and financial performance of aircraft maintenance procedures. The model is validated at a real life case at the aircraft maintenance department from KLM (Royal Dutch Airlines) E&M (Engineering and Maintenance). Hereby it was used to evaluate improvement opportunities for its recovery processes used in case of material unavailability. A regression analysis of the results of the case study has indicated a relationship between NPV and differential value. This has offered new insight in how the performance of aircraft maintenance operations can be assessed and how value can be interpreted from an operational and financial perspective.Control & OperationsAerospace Engineerin
