Computerised development control and approval system for City Hall of Kuala Lumpur     

Ahris Yaakup  Yazid Bakar  Mohd Kadir  Susilawati Sulaiman 《地球空间信息科学学报》2013,16(1):39-49

This paper will discuss the computerised development control and approval system being developed for the Planning and Development Control Department. City Hall of Kuala Lumpur, with stress on the GIS architecture developed within the system. The prospects and challenges towards implementation of the system are also discussed.  相似文献   

Effect of Ozone and Ozone/Fenton in the Advanced Oxidation Process on Biodegradable Characteristics of Semi‐aerobic Stabilized Leachate     

Salem S. Abu Amr  Hamidi Abdul Aziz  Mohd Nordin Adlan  Shuokr Qarani Aziz 《洁净——土壤、空气、水》2013,41(2):148-152

This study investigated the effects of O₃ and O₃/H₂O₂/Fe²⁺ in the advanced oxidation processes (AOPs) on the biodegradable and soluble characteristics of semi‐aerobic stabilized solid waste leachate. The biodegradability (BOD₅/chemical oxygen demand, COD) ratio improved from 0.034 to 0.05 and 0.1 following O₃ and O₃/H₂O₂/Fe²⁺, respectively. Fractions of biodegradable COD_(bi) (24%), non‐biodegradable COD_(ubi) (76%), soluble COD_(s) (59%), biodegradable soluble COD_(bsi) (38%), non‐biodegradable soluble COD_(ubsi) (62%), and particulate COD (PCOD) (41%) in stabilized leachate were also investigated. The fraction of COD_(bi) increased to 28 and 36% after applying O₃ and O₃/AOPs, respectively. COD_(S) increased to 59% after O₃ and to 72% after O₃/AOPs, whereas COD_(bsi) increased to 38 and 51% after O₃ and O₃/AOPs, respectively. The removal efficiency of COD_(S) was obtained at 5% after O₃ alone and improved to 51% following ozone‐based AOPs, whereas the removal efficiency of PCOD improved from 25% after O₃ to 71% after ozone‐based AOPs.  相似文献   

Identification of the Phytoremediation Potential of Indian mustard Genotypes for Copper,Evaluated from a Hydroponic Experiment     

Mohd. Kafeel Ahmad Ansari  Elif Oztetik  Altaf Ahmad  Shahid Umar  Muhammad Iqbal  Gary Owens 《洁净——土壤、空气、水》2013,41(8):789-796

The effectiveness of 10 Indian mustard (Brassica juncea L.) genotypes (viz. Agrani, BTO, Kranti, Pusa Bahar, Pusa Basant, Pusa Bold, Pusa Jai Kisan, Vaibhav, Vardhan, and Varuna) were evaluated for their potential to phytoremediate copper from contaminated waters under laboratory controlled conditions. The genotypes were grown for 20 days in aqueous solutions containing various concentrations of copper sulfate (0–50 µM) in a hydroponic chamber. Throughout plant development, changes in growth variables, biomass accumulation, and total Cu content were evaluated. The results suggested that Indian mustard cv. Pusa Jai Kisan possesses the best capacities of Cu sequestration and tolerance amongst all the genotypes studied. Thus, Pusa Jai Kisan has the greatest potential to become a viable candidate in the development of practical phytoremediation technologies for Cu contaminated sites.  相似文献   

Malaysia's Three Major Ethnic Group Preferences in Creating a Malaysian Garden Identity     

Mina Kaboudarahangi  Osman Mohd Tahir  Mustafa Kamal M.S. 《The Australian geographer》2013,44(2):197-213

Malaysia has a complex multiracial population, predominantly defined by three major ethnic groups: Malay, Chinese and Indian races, with diverse cultural backgrounds. Despite this, the country has a vision to be the most beautiful garden nation, and its National Landscape Policy (NLP) puts emphasis on creating a unique landscape and garden identity. Because of ethnic and cultural differences, there are differences between preferences for developing a garden identity for Malaysia. Hence, this study focused on the visual quality of gardens. Representative images of four well-established gardens of the world including Persian-Islamic, English, Japanese and Chinese gardens were presented to the study's respondents through preference photo surveys. Respondents from the three major ethnic groups in Malaysia were asked to rate their preferred garden types, elements and scenes that they would like to see in Malaysian gardens. The results pinpointed expectations of the visual quality of gardens. These highlighted some similarities and differences between the three major ethnic groups in their preferences for the scenes and elements that they sought in gardens. Diverse factors must be considered when creating Malaysian gardens that will be accepted by Malaysians of different ethnic groups. Garden development reveals preferences attached to visual qualities and emphasises cultural differences between garden users.  相似文献   

Sustainable groundwater management on the small island of Manukan,Malaysia   总被引：1，自引：1，他引：0  

Sarva Mangala Praveena  Mohd Harun Abdullah  Kawi Bidin  Ahmad Zaharin Aris 《Environmental Earth Sciences》2012,66(3):719-728

Numerical models are capable of simulating various groundwater scenarios and relate it towards groundwater management. This paper focuses on numerical modeling and water balance approaches in the search for a sustainable management plan in Manukan Island. The impacts of pumping and recharge rates represented by groundwater scenarios were investigated by means of hydraulic heads, chloride concentrations and water balance components. Overpumping and inconsistency in recharge rate are the stresses shown in Scenario A. Scenario B involved with reduction pumping rate by 25% has shown an increase in groundwater levels, chloride concentration and groundwater storage. Scenario C showed the most promising finding compared with Scenarios A and B. Highest hydraulic heads, lowest chloride concentration (1,552.2 mg/L) and positive groundwater storage (254.3 m³/day) were obtained in Scenario C. Chloride concentration in pumping wells still exceeds World Health Organization International Standard limit in Scenario C which illustrates an additional water treatment is needed. Nevertheless, in view of a compromise groundwater management plan in study area, Scenario C is the best plan so far to protect the groundwater resources in the study area. More understanding of the artificial recharge method (percolation tank) and study site by means of modeling studies is needed. Additionally, further progress is needed in obtaining the water usage data from each part to determine the best pumping rate. A sustainable groundwater management plan is crucial to maintain the natural resources and social benefits as well as to protect the ecological balance of Manukan Island.  相似文献   

Noise Reduction Technique Applied to the Multichannel Analysis of Surface Waves     

Taohidul ISLAM  Zamri CHIK  Mohd Marzuki MUSTAFA 《《地质学报》英文版》2012,86(5):1306-1311

This paper shows the presence of noises and technique to reduce these noises during the surface wave analysis. The frequency-dependent properties of Rayleigh-type surface waves can be used for imaging and characterizing the shallow subsurface. Interference by coherent source-generated noise inhibits the reliability of shear-wave velocities determined through inversion of the phase velocities of Rayleigh waves. Among these interferences by non-planar, non-fundamental mode Rayleigh waves (noise) are body waves, scattered and non-source-generated surface waves, and higher-mode surface waves. For the reduction of noise, the filtering technique is implemented in this paper for the multichannel analysis of surface wave method (MASW). With the de-noising technique during the MASW method, more robust and reliable outcome is achieved. The significance of this paper is to obtain pre-awareness about noises during surface wave analysis and take better outcomes with de-noising performance in near surface soil investigations.  相似文献   

Comparison of Early Succession and Scleractinian Recruitment Between Artificial Live Rocks and Terracotta Tiles     

Hamizan  Yusof Muhammad  Saad  Shahbudin  Naim  Mohd Azrul  Khodzori  Mohd Fikri Akmal  Hanapiah  Muhammad Faiz Mohd 《Ocean Science Journal》2021,56(3):317-325

Ocean Science Journal - Previous studies indicated that artificial live rock (ALR) has the potential to be used as a substrate for coral juveniles. The present study reported a potential of ALR as...  相似文献   

Biodegradation Pathway of Acid Red 27 by White‐Rot Fungus Armillaria sp. F022 and Phytotoxicity Evaluation          下载免费PDF全文

Tony Hadibarata  Abdull Rahim Mohd Yusoff 《洁净——土壤、空气、水》2016,44(3):239-246

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The fine-grained phase-space structure of cold dark matter haloes     

Mark Vogelsberger  Simon D. M. White  Amina Helmi  Volker Springel 《Monthly notices of the Royal Astronomical Society》2008,385(1):236-254

We present a new and completely general technique for calculating the fine-grained phase-space structure of dark matter (DM) throughout the Galactic halo. Our goal is to understand this structure on the scales relevant for direct and indirect detection experiments. Our method is based on evaluating the geodesic deviation equation along the trajectories of individual DM particles. It requires no assumptions about the symmetry or stationarity of the halo formation process. In this paper we study general static potentials which exhibit more complex behaviour than the separable potentials studied previously. For ellipsoidal logarithmic potentials with a core, phase mixing is sensitive to the resonance structure, as indicated by the number of independent orbital frequencies. Regions of chaotic mixing can be identified by the very rapid decrease in the real-space density of the associated DM streams. We also study the evolution of stream-density in ellipsoidal NFW haloes with radially varying isopotential shape, showing that if such a model is applied to the Galactic halo, at least 10⁵ streams are expected near the Sun. The most novel aspect of our approach is that general non-static systems can be studied through implementation in a cosmological N -body code. Such an implementation allows a robust and accurate evaluation of the enhancements in annihilation radiation due to fine-scale structure such as caustics. We embed the scheme in the current state-of-the-art code gadget -3 and present tests which demonstrate that N -body discreteness effects can be kept under control in realistic configurations.  相似文献   

Ionospheric and geomagnetic disturbances during the 2005 Sumatran earthquakes     

Alina Marie Hasbi  Mohammed Awad Momani  Mohd Alauddin Mohd Ali  Norbahiah Misran  Kazuo Shiokawa  Yuichi Otsuka  Kiyohumi Yumoto 《Journal of Atmospheric and Solar》2009,71(17-18):1992-2005

This paper investigates the ionospheric and geomagnetic responses during the 28 March 2005 and 14 May 2005 Sumatran earthquakes using GPS and magnetometer stations located in the near zone of the epicenters. These events occurred during low solar and geomagnetic activity. TEC oscillations with periods of 5–10 min were observed about 10–24 min after the earthquakes and have horizontal propagation velocities of 922–1259 m/s. Ionospheric disturbances were observed at GPS stations located to the northeast of the epicenters, while no significant disturbances were seen relatively east and south of the epicenters. The magnetic field measurements show rapid fluctuations of 4–5 s shortly after the earthquake, followed by a Pc5 pulsation of 4.8 min about 11 min after the event. The correlation between the ionospheric and geomagnetic responses shows a good agreement in the period and time lag of the peak disturbance arrival, i.e. about 11–13 min after the earthquake.  相似文献