19672 research outputs found
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LTE efficiency when used in traffic information systems: A stable interest aware clustering
No full textLong-term evolution (LTE) technology is critical for the envisioned usage scenarios in the Internet of Vehicles. An important usage scenario is traffic information systems (TIS) for vehicular ad hoc networks (VANETs) that depend on LTE for the delivery of non-safety information to vehicles. TISs are centralized data warehouses that collect and process traffic information and subsequently allow vehicles to receive such information before and during a road trip. Considering the extensive deployment of VANETs, the LTE demand for TIS is expected to increase. Therefore, we explore and quantify the inefficiency of LTE when used in TIS. By envisioning basic test case scenarios, we establish the trends of data usage while commuting and providing insights into how LTE usage in TIS may lead to the inefficient use of the available wireless spectrum during road trips. To reduce identified inefficiency in LTE usage and cluster instability due to the high speed of the vehicles, we proposed a novel stable interest-aware clustering (SIAC) mechanism. SIAC consider VANETs mobility constraint, LTE link quality, and exploit interest of the vehicles, in cluster formation phase. Resulting in the reduction in the data demand of the vehicles and frequency of link failures among the vehicles and provides transmission path stability. SIAC performs well as compared with the existing approaches shows more cluster stability and reduces the LTE usage for driving assistance and route planning applications
Satira Politik: Analisis Internet Trolling di Malaysia (Political Satire: Analysis on the Internet Trolling in Malaysia)
No full textPolitical satire is a form of political communication composed of various types. Lately, political satire via the Internet is thriving in Malaysia. Internet trolling is available in the form of memes or video and is one of the fascinating medium used in social media as a means of delivering information. This phenomenon has been transmitted in most social media applications. Internet trolling used against political leaders is seen as a type ofpolitical sarcasm. This has become an online phenomenon as part of political news utilised by netizens. This is due to the Internet as a medium of information which is free and easy to access. This article focuses on the participation by the social media users in politicalcommunication via political satire. The design of this study is based on some limited numbers of literature review and theory of social mobilisation and Uses and gratifications theory. The qualitative content analysis is chosen as the research methodology. Facebook is utilised as the medium of analysis through comments selected on Facebook as analytics unit. This study concludes that the phenomenon of political trolling in social media is an indicator that the culture of freedom of speech among the people is progressing. Although the political trolling that has been dispersed through various social media applications is somewhat outrageous, yet these leaders continue to carry out their respective duties regardless of their extreme satire
Managing risk inside China: Insights from in-depth empirical analyses in manufacturing industry
No full textThis article provides key insights into the valuation of enterprise risk management (ERM) inside China. According to data gathered from manufacturing industry in China, the article examined the implication of risk management within firms through the effect of ERM on the relationship between individual risks and risk portfolio, on the relationships among categorical risks and risk structure, and on the relationship between categorical risk and firm performance. In order to evaluate the benefits of ERM in a comprehensive manner, a covariance-based structural equation modeling (CBSEM) was adopted as the major method. The results revealed that ERM mitigated the association between individual risks and risk portfolio in China. In addition, the relationships among categorical risks in the risk structure were weakened as well. Since the relationship between categorical risks and firm performance became significantly weak when firms embraced with ERM, therefore, it implied that ERM can optimize the risk structure and add value to firm performance by managing risk in China
Heavy vehicle multi-body dynamic simulations to estimate skidding distance
No full textThe skid mark is valuable for accident reconstruction as it provides information about the braking behaviour drivers and the speed of heavy vehicles. However, despite its importance, there is currently no mathematical model available to estimate skidding distance (SD) as a function of vehicle characteristics and road conditions. This paper attempts to develop a non-linear regression model that is capable of reliably predicting the skidding distance of heavy vehicles under various road conditions and vehicle characteristics. To develop the regression model, huge data sets were derived from complex heavy vehicle multi-body dynamic simulation. An emergency braking simulation was conducted to examine the skidding distance of a heavy vehicle model subject to various Gross Vehicle Weight (GVW) and vehicle speeds, as well as the coefficient of friction of the road under wet and dry conditions. The results suggested that the skidding distance is significantly affected by Gross Vehicle Weight, speeds, and coefficient of friction of the road. The improved non-linear regression model provides a better prediction of the skidding distance than that of the conventional approach thus suitable to be employed as an alternative model for skidding distance of heavy vehicles in accident reconstruction
Effect of polyphenols enriched from green coffee bean on antioxidant activity and sensory evaluation of bread
No full textThe present study investigated the benefits of adding different concentrations of grounded green coffee beans (GCB) powder (3%, 5% and 7%) to wheat flour dough prior to baking at 220 °C for 30 min compared to control (0% of GCB) and commercially available bread. Each sample was analyzed for total phenolic content (TPC), antioxidant activates (DPPH radical scavenging activity (IC50) and ferrous ion chelating (FIC) ability) and organoleptic properties. The highest TPC was observed in 7% GCB bread (1.61 ± 0.06 mg GAE/g) which also recorded the highest DPPH (2.80 ± 0.06 mg/ml; IC50) and FIC (0.49 ± 0.01 mg EDTA/g). GCB bread (3%) showed the highest organoleptic scores among the GCB bread. In conclusion, GCB may be used in formulating functional bread which impacts high antioxidant content
Kesantunan Melayu: Analisis Konteks Perbualan dalam Rancangan Bual Bicara (Malay Politeness: Conversational Context Analysis in Talk Show)
No full textMalay politeness is the politeness used in the Malay community-bound by the norms and values of society. Malay Politeness (KM) is a result of merging and modification process of Asmah (2000), Awang (2007) and Tenas (2011) model. KM was formed by three factors, which are role, power and differences in social status (PKS), titles (T) and rules (Per.). Air muka (dignity) is included in PKS. KM was used to analyze conversational context of content structure of the talk show titled “Celik Mata, Reset Minda Orang Yang Tenang” published by radio IKIM.fm. Communicator consist of host (PC), invited guest (TU), callers (PG) and FB (FB) questions. There are 16 conversational contexts with 484 dialogues in this structure. The analysis has two objectives, the application of KM and the tendency of KM used by the cast. Text analysis and quantitative research design are employed in the study.Findings show variation of KM is applied, which includes complete KM PKS+T+Per. and incomplete-involving two KM and one KM. Findings show that TU tend to use PKS+T and PKS+T+Per. factor. PC was bound to the Per. factor. While PG is bound by the T and Per. and FB, which showed a tendency of T+Per. factor. This shows that KM is applied by the communicator in accordance with their role. In conclusion, KM is absolutely controlled by the context and the communicators
Strategi dan Struktur Kesantunan Melayu dalam Kritikan Mentor: Rancangan Realiti Televisyen (Strategies and Structures of Malay Politeness in Criticism on Mentor: A Reality Television Programme)
No full textCriticism is often labelled as a negative comment. However, it can also be treated as a positive comment. The word ‘criticism’ has broad meanings, such as review. In Malay culture, criticisms are presented in various ways by using certain strategies and structures. The purpose of criticism is to achieve an objective. This can be seen in the criticism given in Mentor; a reality television programme. The data of this criticism will be analyzed by applying Brown and Levinson (1987) and Asmah (2000) theories. The combinations of these two theories are based on the concept of face and personal honour. These formed patterns of politeness strategies from Malay perspectives. The strategy patterns will be structured in the Sandwich technique (Davies & Jacobs, 1985). This study used data from Mentor seasons 1, 2 and 5. Data were downloaded, transcribed and text analysis was conducted on the texts. Utterances from fixed juries, recurring juries and invited juries were analysed and grouped into strategy patterns of politeness. The findings of the analysis show that all the juries tends to use patterns of strategies (on record baldly) + (with redressive action positive politeness) + (with redressive action negative politeness), (BTP)+(BPKP)+(BPKN) with G3 and G1 Malay politeness; with a positive criticism flanking the negative criticism. This proves that while conveying criticism, Malay speakers are still concerned about politeness in communication
Progressive pulmonary vein stenosis in down syndrome infant: A rare cause of pulmonary hypertension
No full textPulmonary veins stenosis in a Down Syndrome infant with normal connection pulmonary vein is rare and precise incidence of this disease is unknown. We report a case of progressive multiple pulmonary vein stenosis in a Down Syndrome infant with congenital heart disease and transient myeloproliferative leukaemia. This case-report aims to improve awareness among physicians and sonographers of this disease and the importance of pulmonary vein assessment in congenital heart disease with unexplained pulmonary hypertension
An ELM based multi-agent system and its applications to power generation
No full textThis paper presents an implementation of Extreme Learning Machine (ELM) in the Multi-Agent System (MAS). The proposed method is a trust measurement approach namely Certified Belief in Strength (CBS) for Extreme Learning Machine in Multi-Agent Systems (ELM-MAS-CBS). The CBS is applied on the individual agents of MAS, i.e., ELM neural network. The trust measurement is introduced to compute reputation and strength of the individual agents. Strong elements that are related to the ELM agents are assembled to form the trust management in which will be letting the CBS method to improve the performance in MAS. The efficacy of the ELM-MAS-CBS model is verified with several activation functions using benchmark datasets (i.e., Pima Indians Diabetes, Iris and Wine) and real world applications (i.e., circulating water systems and governor). The results show that the proposed ELM-MAS-CBS model is able to achieve better accuracy as compared with other approaches
An investigation of thermal environment of an existing UFAD system in a high-rise office building in the tropics
No full textThe current case study was conducted to identify the causes of environmental health issues in the office space associated with the existing Underfloor Air Distribution (UFAD) system in a high-rise office building in the tropics. The causes of the indoor environmental quality degradation are the key to resolve the environmental health issues. Thus, the parameters such as the indoor air temperature, relative humidity (RH), relative air velocity, carbon monoxide (CO), carbon dioxide (CO2), formaldehyde, total volatile organic compound (TVOC) and particulate matter (PM10) were evaluated in five office spaces. The results showed that the diffusers were not effective in creating air mixing at the occupied space. The RH has exceeded the threshold limit of 70%. The CO2 concentration has exceeded 1000 ppm, and the formaldehyde has exceeded 0.1 ppm. These indicate the poor design and maintenance of the building that lead to the degradation of indoor environmental quality. Long exposure to the poor indoor environmental quality will cause permanent health damages. The Indoor Air Quality (IAQ) management plan must be established and implemented in the ongoing basis to ensure the health of the occupants are safeguarded. As part of the plan, the practice to conduct an IAQ assessment once every 3 years is recommended to ensure the health and well-being of the occupants are safeguarded