Simulation of sub-drains performance using visual MODFLOW for slope water seepage Problem

Numerical simulation technique was used for investigating water seepage problem at the Botanic Park Kuala Lumpur. A proposed sub-drains installation in problematic site location was simulated using Modular Three-Dimensional Finite Difference Groundwater Flow (MODFLOW) software. The results of simulation heads during transient condition showed that heads in between 43 m (water seepage occurred at level 2) until 45 m (water seepage occurred at level 4) which heads measurement are referred to mean sea level. However, elevations measurements for level 2 showed the values between 41 to 42 m from mean sea level and elevations for level 4 between 42 to 45 m from mean sea level. These results indicated an increase in heads for level 2 and level 4 between 1 to 2 m when compared to elevations slope at the level 2 and level 4. The head increases surpass the elevation level of the slope area that causing water seepage at level 2 and level 4. In order to overcome this problems, the heads level need to be decrease to 1 until 2 m by using two options of sub-drain dimension size. Sub-drain with the dimension of 0.0750 m (diameter), 0.10 m (length) and using 4.90 m spacing was the best method to use as it was able to decrease the heads to the required levels of 1 to 2 m

Simulation of sub-drains performance using visual MODFLOW for slope water seepage Problem

Numerical simulation technique was used for investigating water seepage problem at the Botanic Park Kuala Lumpur. A proposed sub-drains installation in problematic site location was simulated using Modular Three-Dimensional Finite Difference Groundwater Flow (MODFLOW) software. The results of simulation heads during transient condition showed that heads in between 43 m (water seepage occurred at level 2) until 45 m (water seepage occurred at level 4) which heads measurement are referred to mean sea level. However, elevations measurements for level 2 showed the values between 41 to 42 m from mean sea level and elevations for level 4 between 42 to 45 m from mean sea level. These results indicated an increase in heads for level 2 and level 4 between 1 to 2 m when compared to elevations slope at the level 2 and level 4. The head increases surpass the elevation level of the slope area that causing water seepage at level 2 and level 4. In order to overcome this problems, the heads level need to be decrease to 1 until 2 m by using two options of sub-drain dimension size. Sub-drain with the dimension of 0.0750 m (diameter), 0.10 m (length) and using 4.90 m spacing was the best method to use as it was able to decrease the heads to the required levels of 1 to 2 m

Impact of Teaching Cohesive Devices on L2 Students\u27 Language Accuracy in Written Production

A well-written text is not only grammatical, but also cohesive and coherent. Cohesive devices play the most basic role in cohesion of a text and should be taken into consideration in teaching writing. This paper reports on a study investigating the impact of teaching academic text cohesive devices on L2 students\u27 language accuracy in written production. The main objective of the study is to find out if teaching cohesive devices would enhance students\u27 prior knowledge and subsequently result in increased written language accuracy. Based on a pre-post-test research design, 40 students enrolled in English for Academic Purposes course at a university in Malaysia were engaged as participants. A note-taking test was conducted prior to and post intervention. The intervention consisted of lessons on academic text cohesive devices. The data was then analysed and reported using descriptive statistics and paired sample t-test. From the findings, it is clear that there is an increase in the minimum and maximum scores as well as in the mean scores between the pre- and post-test. More importantly, there is evidently a significant improvement in the participants\u27 post-test language accuracy as evaluated through number of error-free t-units. In sum, the teaching of academic text cohesive devices does have a significant impact on language accuracy in written production. Hence, this study recommends L2 learners\u27 prior knowledge activation to enhance written language accuracy

A Methodology To Determine Product Maintainability Based On Assembly Criteria - A Case Study Of Rear Matorcycle Brake Assembly.

This paper presented a methodology to determine a maintainability index based on assembly criteria. Typically time is the major parameter or indicator being used measuring the maintainability, but less works are focus on details components assembly and assembly criteria

Multi objective machining estimation model using orthogonal and neural network

Much hard work has been done to model the machining operations using the neural network (NN). However, the selection of suitable neural network model in machining optimization area especially in multi objective area is unsupervised and resulted in pointless trials. Thus, a combination of Taguchi orthogonal and NN modeling approach is tested on two types of electrical discharge machining (EDM) operations; Cobalt Bonded Tungsten Carbide (WC-Co) and Inconel 718 to observe the efficiency of proposed approach on different numbers of objectives. WC-Co EDM considered two objective functions and Inconel 718 EDM considered four objective functions. It is found that one hidden layer 4-8-2 layer recurrent neural network (LRNN) is the best estimation model for WC-Co machining and one hidden layer 5-14-4 cascade feed forward back propagation (CFBP) is the best estimation model for Inconel 718 EDM. The results are compared with trial-error approach and it is proven that the proposed modeling approach is able to improve the machining performances and works efficiently on two-objective problems

Masyarakat Sivil Dan Demokratisasi Politik Di Malaysia: Satu Analisis Ringkas

This paper analyzes the democratization process in Malaysia by positing the role of civil society as the engine of change. The analysis in this paper differs from the views of previous scholars who argued that political protests against the government first emerged during Dr Mahathir's regime. In fact, this paper argues that the protests process started even before Malaysian independence. Although this process continues to take place, it has not brought about real democratization in Malaysia. This is because of the success of the ruling government in providing comfort and feeding the people resulting in difficulty for civil societies to convince the peoples of the need for political transformation. In this aspect, this paper discusses a new approach for political protests by civil society over abuse of power by government, that is through political protests 'from within' which is more effective in raising the people's consciousness toward political change. The paper ends with a conclusion that one of the distinguishing features of Malaysia politics that differs from other political regimes in the world is that political leaders in Malaysia never have to shed the blood of its citizens and this is the very reason that they are able to sustain their status quo until now

STRESS AND ITS RELIEF AMONG UNDERGRADUATE DENTAL STUDENTS IN MALAYSIA

This study was conducted to identify the prevalence of stress, types of stressors, consequences of stress and stress relievers among undergraduate dental students at the University of Malaya during the different years of study. A descriptive cross-sectional quantitative study was conducted using a self-administered questionnaire among Bachelor of Dental Surgery students during Years 2 to 5. A 100 response rate was obtained. The instrument asked questions about the preceding academic year. The results of the questionnaire reveal the prevalence of stress was 100. The most common cause of stress among preclinical students was academic concerns and among clinical students was patient management and clinical performance. Physical and behavioral problems were reported as consequences of stress. Most students overcame stress by having strong interpersonal relationships. This record was migrated from the OpenDepot repository service in June, 2017 before shutting down

Integration Of Design For Modularity And Design For Assembly To Enhance Product Maintainability.

This paper discussed the relationship between design for modularity and maintenance in order to extend product life. Modularization can be described as an engineering approach to simplify component or product configuration as functional independence it creates

Investigation of oil palm empty fruit bunches in biosoda pulping by tropical white-rot fungi, Ganoderma australe (Fr.) Pat.

Ganoderma australe, a white-rot fungus, is well-known as a decomposer of logs and stumps in the Malaysian forest. We investigated G. australe (KUM60848) strain for production of ligninolytic enzymes i.e. lignin peroxidase (LiP) and laccase, and hydrolytic enzymes, i.e. cellulase and xylanase, using oil palm empty fruit bunches (EFB) in solid-substrate fermentation (SSF). EFB was shown to support good mycelial growth for G. australe during 28 days of solid-substrate fermentation. All tested enzyme activities demonstrated highest activities of LiP (0.18±0.02 U/ml), laccase (1.92±0.03 U/ml), cellulase (0.72±0.11 U/ml) and xylanase (0.42±0.01 U/ml) throughout the 28 days of incubation. Compared to an untreated control, the pretreated EFB yield increased to a maximum of 18% during biopulping. Fourteen days of SSF had the highest degree of material dissolved, as shown by pulp yields and the optimum values (29.8 Nm/g tensile index and 2.73 Kpa m2/g burst index) acceptable to obtain paper sheets

Honey as an immunomodulator during sepsis in animal model

Malaysian honey (Gelam) has antibacterial activity and it also has a high antioxidant capacity and free radical scavenger activities. Honey extracts showed potent activity against TNFα in L929 cell and NO in RAW 264.7 macrophage as well as inhibitory effects on the prostaglandin E2 and nitric oxide (NO) in inflammatory tissues of rat. Sepsis is mediated in part by bacterial endotoxin, which stimulates macrophages/monocytes to sequentially release early (for example, TNF, IL-1) cytokines and inducible enzymes such as inducible nitric oxide (iNOS) synthase and heme oxygenase 1 (HO-1) and late such as high-mobility group box 1 (HMGB1)