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Articles 1801 - 1830 of 3194
Full-Text Articles in Biotechnology
Potential Role O Biotechnology In Food & Health Problems Of Asean Countries, Ismail Ghazally
Potential Role O Biotechnology In Food & Health Problems Of Asean Countries, Ismail Ghazally
ASEAN Journal on Science and Technology for Development
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Development In Biotechnology - With Reference To Malaysia, Sallen Abu Bakar, Smith John E.
Development In Biotechnology - With Reference To Malaysia, Sallen Abu Bakar, Smith John E.
ASEAN Journal on Science and Technology for Development
.
Food Irradiation - Available Technology For Reduceing Post Harvest Losses Of Food, Loaharanu Paisan
Food Irradiation - Available Technology For Reduceing Post Harvest Losses Of Food, Loaharanu Paisan
ASEAN Journal on Science and Technology for Development
No abstract provided.
Fault Location On A Distribution Feeder Using Fault Generated High Frequency Current Signatures, Hizam Hashim, Crossley P.A.
Fault Location On A Distribution Feeder Using Fault Generated High Frequency Current Signatures, Hizam Hashim, Crossley P.A.
ASEAN Journal on Science and Technology for Development
This paper describes how the fault generated travelling waves detected in the current signals at a single location on a distribution feeder can be used for fault location. The method identifies the fault section and the probable location of the fault by comparing the relative distance of each “peak” in the high frequency current signals to the known reflection points in the distribution feeder. The probable fault location is then used within a transient power system simulator that models the actual network. The resulting simulated current waveforms are then cross-correlated against the original signal. If the estimated fault location is …
Computation Of Bearing Capacity Factor Nq –Terzaghi And Prandtl Mechanism, Dewaikar D.M., Mohapatro B.G., Sawant V.A., Chore H.S.
Computation Of Bearing Capacity Factor Nq –Terzaghi And Prandtl Mechanism, Dewaikar D.M., Mohapatro B.G., Sawant V.A., Chore H.S.
ASEAN Journal on Science and Technology for Development
The unique values of the bearing capacity factors, Nq are obtained in respect of failure mechanisms suggested by Terzaghi and Prandtl using limit equilibrium approach. In this paper an attempt has been made to present the analysis integrating the Kotter’s equation with Terzaghi’s and Prandtl’s mechanisms using limit equilibrium conditions. The analysis presented here with some modifications in the exiting analyses computes the bearing capacity factor – Nq , the expressions of which are similar to the one given by Terzaghi [10] and Reissner [7] who had extended the pioneering work initiated by Prandtl [6]. The analysis reported here successfully …
Characteristics Of Lithium Lanthanum Titanate Thin Films Made By Electron Beam Evaporation From Nanostructured La0.67-Xli 3xtio3 Target, Dinh Nguyen Nang, Trong Le Dinh, Long Pham Duy
Characteristics Of Lithium Lanthanum Titanate Thin Films Made By Electron Beam Evaporation From Nanostructured La0.67-Xli 3xtio3 Target, Dinh Nguyen Nang, Trong Le Dinh, Long Pham Duy
ASEAN Journal on Science and Technology for Development
Bulk nanostructured perovskites of La0.67-xLi3xTiO3 (LLTO) were prepared by using thermally ball-grinding from compounds of La2O3, Li2CO3 and TiO2. From XRD analysis, it was found that LTTO materials were crystallized with nano-size grains of an average size of 30 nm. The bulk ionic conductivity was found strongly dependent on the Li+ composition, the samples with x = 0.11 (corresponding to a La0.56Li0.33TiO3 compound) have the best ionic conductivity, which is ca. 3.2 x 10-3 S/cm at room temperature. The LLTO amorphous films were made by electron beam deposition. At room temperature the smooth films have ionic conductivity of 3.5 x …
Electrochemical Performances And Corrosion Inhibition Of Aa6061 In Tropical Seawater, Rosliza R., Senin H.B., Wan Nik W.B.
Electrochemical Performances And Corrosion Inhibition Of Aa6061 In Tropical Seawater, Rosliza R., Senin H.B., Wan Nik W.B.
ASEAN Journal on Science and Technology for Development
The corrosion performances of AA6061 aluminum alloy in tropical seawater was investigated using potentiodynamic polarization, electrochemical impedance spectroscopy (EIS) and their morphology was characterized by the scanning electron microscopy (SEM). The results showed that the presence of sodium benzoate as an inhibitor significantly decrease the corrosion current densities (i corr ), corrosion rates and double layer capacitance (C dl ), whilst increasing the polarization resistance (R p ). The scanning electron microscopy (SEM) images indicated that the mechanism of charge transfer and the formation of thin film have been taken place on the specimens.
Numerical Result For Variational Inequality Problems With Equality Constraint, Loi Pham Van
Numerical Result For Variational Inequality Problems With Equality Constraint, Loi Pham Van
ASEAN Journal on Science and Technology for Development
In this paper we present some numerical results for illustrating a theoret- ical results obtained in our investigation in the field of variational inequality problems with constraint in the form of operator equation involving monotone operator.
Affine-Invariant Fourier Descriptors And Their Application In A Number Plate Recognizing System, Hai Nguyen Thanh, Long Pham The, Dinh Nguyen Cong
Affine-Invariant Fourier Descriptors And Their Application In A Number Plate Recognizing System, Hai Nguyen Thanh, Long Pham The, Dinh Nguyen Cong
ASEAN Journal on Science and Technology for Development
This paper introduces a method for describing partial shapes that are affine-invariant. The proposed method facilitates the extraction of descriptors, which is effective for opened-curves and invariant to different viewpoints. This method helps to improve the performance and quality of real world object image recognizing systems. The proposed method was tested in a number plate recognition system.
A Method Build Fuzzy Associate Memory For Fuzzy Control Problems, Thanh Ha Pham, Cat Ho Nguyen, Nhu Lan Vu
A Method Build Fuzzy Associate Memory For Fuzzy Control Problems, Thanh Ha Pham, Cat Ho Nguyen, Nhu Lan Vu
ASEAN Journal on Science and Technology for Development
Building fuzzy associate memory accordance with control problems has great meaning for control methods In this paper we propose a method, that build fuzzy associate memory for control problem based on optimal trajectory of control problem, the method developed by theory hedge algebras and genetic algorithm.
The Evidence Of Non N-Glycan Linked Mannose In Exochitinase (42 Kda) From Trichoderma Harzianum Bio10671 Glycosylation, Mustafa Muskhazli, Zaman Faridah Qamaruz, Ramli Salfarina, Tohfah Nor Farizan, Ithnin Nalisha, Wallis Greg
The Evidence Of Non N-Glycan Linked Mannose In Exochitinase (42 Kda) From Trichoderma Harzianum Bio10671 Glycosylation, Mustafa Muskhazli, Zaman Faridah Qamaruz, Ramli Salfarina, Tohfah Nor Farizan, Ithnin Nalisha, Wallis Greg
ASEAN Journal on Science and Technology for Development
Chitinase 42 kDa produced by Trichoderma harzianum has been proven as a prime compound to be excreted onto the hyphae of the pathogen causing localised cell wall lysis at the point of interaction. This finally initiate the process of the host cell becomes empty of cytoplasm, disintegrates and shows a rapid collapse. This study investigates the existence of N-glycan linked mannose in chitinase 42 kDa produced by the Malaysian T. harzianum strain BIO10671. The chitinase 42 kDa from T. harzianum BIO10671 was initially purified using anion exchange chromatography prior to a series of experiments such as immunoblotting against the chitinase …
Microbial Diversity In Trace Water Of Jet Fuel In Vietnam, Hien Lai Thuy, Hang Pham Thi, Nga Vuong Thi, Hai Hoang, Yamaguchi Nobuyasu, Tani Katsuji
Microbial Diversity In Trace Water Of Jet Fuel In Vietnam, Hien Lai Thuy, Hang Pham Thi, Nga Vuong Thi, Hai Hoang, Yamaguchi Nobuyasu, Tani Katsuji
ASEAN Journal on Science and Technology for Development
Microorganisms in petroleum product, including jet fuel, have been found by some English andAmerican authors since the 20’s of the last century. In 1958, after Bakanaukas isolated many microorganisms in jet fuel JP4, this topic was especially concentrated. Most of microorganisms living in jet fuel are able to degrade hydrocarbon of the fuel to obtain energy and carbon source for their growth. The presence of microorganisms in jet fuel not only brings about the lost of fuel in store process, but also briefly changes the component and structure of jet fuel. Moreover, the products of their metabolism, such as organic …
Some Results Of Study On Present Situation Of Household Solid Waste In Hanoi, Vietnam, Yen To Thi Hai, Ha Pham Thi Thu, Dong Nguyen The, Tuyen Trinh Van, Kawai Kosuke, Matsui Saburo
Some Results Of Study On Present Situation Of Household Solid Waste In Hanoi, Vietnam, Yen To Thi Hai, Ha Pham Thi Thu, Dong Nguyen The, Tuyen Trinh Van, Kawai Kosuke, Matsui Saburo
ASEAN Journal on Science and Technology for Development
This paper presents some results on the study of Solid waste generated by households (hereinafter referred to as HSW) in Hanoi city. Compositions of the waste generated from three typical communities and their relationship with family life-style of each community were investigated. Differences among compositions of HSW of three resident groups of different incomes, lifestyles were analyzed. Based on the study results, some measures for better management of HSW and maximum reuse and recycle of HSW were proposed. By this way, the amount of HSW transported to landfill could be reduced and stabilization phase of landfill sites could be shortened.
Rapid Detection Of -Thalassemia Mutations In Thailand Using Multiplex Arms, Shimbhu D., Mirasena S., Sanguansermsri M., Sanguansermsri T.
Rapid Detection Of -Thalassemia Mutations In Thailand Using Multiplex Arms, Shimbhu D., Mirasena S., Sanguansermsri M., Sanguansermsri T.
ASEAN Journal on Science and Technology for Development
The number of mutations underlining b-thalassemia generate a wide variety of different clinical phenotypes. An understanding of the genotype is important for medical personnel in order to provide proper counseling to patients and their families. Characterization of these mutations should aid the planning of a prenatal diagnosis program for bthalassemia. The heterogeneity of the mutations makes it difficult and time consuming to identify the mutation in some individuals. We developed a single-tube multiplex amplification refractory mutation system (multiplex ARMS) to identify common ethnic- specific b-thalassemia mutations. Confirmation of multiplex ARMS results was carried out using direct sequencing. Three thousand three …
Pretreatment Of Lignocellulosic Biomass For Enzymatic Hydrolysis, Hoa Doan Thai, Man Tran Dinh, Hau Ngo Viet
Pretreatment Of Lignocellulosic Biomass For Enzymatic Hydrolysis, Hoa Doan Thai, Man Tran Dinh, Hau Ngo Viet
ASEAN Journal on Science and Technology for Development
The cost of raw materials continues to be a limiting factor in the production of bio-ethanol from traditional raw materials, such as sugar and starch. At the same time, there are large amount of agricultural residues as well as industrial wastes that are of low or negative value (due to costs of current effluent disposal methods). Dilute sulfuric acid pretreatment of elephant grass and wood residues for the enzymatic hydrolysis of cellulose has been investigated in this study. Elephant grass (agricultural residue) and sawdust (Pulp and Paper Industry waste) with a small particulate size were treated using different dilute sulfuric …
New Findings Notes Of The Parasitic Nematodes Of Terrestrial Invertebrates In Viet Nam, Luc Pham Van, Thanh Nguyen Vu, Spiridonov S.E.
New Findings Notes Of The Parasitic Nematodes Of Terrestrial Invertebrates In Viet Nam, Luc Pham Van, Thanh Nguyen Vu, Spiridonov S.E.
ASEAN Journal on Science and Technology for Development
First results of the parasitological survey of Vietnamese terrestrial invertebrates performed in 2007 demonstrate extreme diversity of nematodes parasitic in these animals. The most interesting new findings are nematodes of four superfamilies: Drilonematoidea, Thelastomatoidea, Rhabditoidea and Ransomnematoidea. Further progress was achieved in last three years in the studies of Drilonematoidea nematodes – coelomic parasites of earthworms. One new genus and several new species were discovered in large megascolecids collected in Bac Bo (Tam Dao) and Nam Bo (Bidoup - Nui Ba N.P.). Passalidae beetles are colonial coleopterans inhabiting rotten wood in tropical forests throughout tropics, and are known as characteristic …
Study On Some Properties And Morphology Of Composites Based On Polyethylene Grafted Acrylic Acid/Ethylene-Vinyl Acetate Copolymer/Calcium Carbonate, Hoang Thai, Cong Do Van
Study On Some Properties And Morphology Of Composites Based On Polyethylene Grafted Acrylic Acid/Ethylene-Vinyl Acetate Copolymer/Calcium Carbonate, Hoang Thai, Cong Do Van
ASEAN Journal on Science and Technology for Development
Composites based on polyethylene grafted acrylic acid (PE-g-AAc)/ethylene-co-vinylacetate copolymer (EVA)/calcium carbonate (CaCO3) were prepared by melt mixing. Relative melt viscosity, morphology, mechanical properties and thermostability of the composites were studied. The experimental results show that the presence of (CaCO3) activated by stearic acid (10-20 wt.%) changes lightly stable torque of polymer blend of PE-g-AAc/EVA. Use of modified PE improves compatibility of PE and EVA as well as makes the components disperse into each other better than in blends using unmodified PE. Tensile strength and elongation at break of both polymer blends decrease with presence of CaCO3. However, tensile strength of …
Effect Of Injector Opening Pressure On Performance And Emission Of Lpg - Methyl Ester Of Mahua Oil Dual Fuel Engine, Kapilan N.
ASEAN Journal on Science and Technology for Development
One of variables, which affect the performance and emission of dual fuel engine is injection pressure. Hence in the present work, effect of Injector opening pressure on the performance of the engine was studied. A four stroke single cylinder engine was modified to work in dual fuel mode. Three injector opening pressures (180 bar, 200 bar and 220 bar) were considered for the present work. Methyl ester of mahua oil was used as pilot fuel and LPG was used as primary fuel. From the test results, it was observed that the injector opening pressure of 200 bar results in higher …
Potassium Permanganate As Oxidant In The Cod Test For Saline Water Samples, Goh Chin-Ping, Lim Poh-Eng
Potassium Permanganate As Oxidant In The Cod Test For Saline Water Samples, Goh Chin-Ping, Lim Poh-Eng
ASEAN Journal on Science and Technology for Development
The objective of this study is to investigate the feasibility of applying potassium permanganate (KMnO4) as the oxidant in the COD test for highly saline water samples. Initially, the COD values of various glucose standard solutions were determined by three methods, namely the standard closed reflux dichromate (CODCr), the acidic permanganate (CODMn) and the alkaline permanganate (CODOH) methods. The results showed that at COD values lower than 20 mg/L, the standard dichromate method was not applicable due to its poor precision (RSD > 10%). The CODOH method was less effective compared to the CODMn method as the recoveries were 0.71 and …
Structural Characterization Of Agar Extracted From Six Red Seaweed Species Growing In The Coast Of Vietnam, Van Tran Thi Thanh, Ly Bui Minh, Buu Ngo Quoc, Kinh Chu Dinh
Structural Characterization Of Agar Extracted From Six Red Seaweed Species Growing In The Coast Of Vietnam, Van Tran Thi Thanh, Ly Bui Minh, Buu Ngo Quoc, Kinh Chu Dinh
ASEAN Journal on Science and Technology for Development
Polysaccharides extracted from six red seaweed species growing in Vietnam have been studied. Characterisation of their structure by chemical and spectroscopic methods showed that all of them have a basic repeating structure of alternating 3-linked b-D-galactopyranosyl and 4-linked 3,6-anhydro a-L-galactopyranosyl units with substituted methyl ether groups. The native agar offers only weak gelling abilities owing to the 4-linked a-L-galactopyranosyl 6-sulfate as its precursor. Conversion of this unit into the corresponding 3,6-anhydride by treating with hot alkali generally led to gel strength increasing. The agars from G. fisheri and G. firma are poorly substituted, while those from G.asiatica, G.tenustipitata and G. …
Dibutyltin(Iv) Alkylcyclohexyldithiocarbamates: Spectroscopic Characterization And Crystal Structures Of Dibutyltin(Iv) N-Methyl And N-Ethylcyclohexyldithiocarbamate, Awang Normah, Baba Ibrahim, Aziz Y. Farina Abd., Yamin Bohari M.
Dibutyltin(Iv) Alkylcyclohexyldithiocarbamates: Spectroscopic Characterization And Crystal Structures Of Dibutyltin(Iv) N-Methyl And N-Ethylcyclohexyldithiocarbamate, Awang Normah, Baba Ibrahim, Aziz Y. Farina Abd., Yamin Bohari M.
ASEAN Journal on Science and Technology for Development
A new series of dibutyltin(IV) alkylcyclohexyldithiocarbamates of the type (C4H9)2Sn[S2CNR(C6H11)]2 (R = CH3, C2H5, i-C3H7) have been successfully synthesized using in-situ method. These compounds were characterized by elemental analysis, infrared and 13C NMR spectroscopy. A single crystal X-ray analysis of dibutyltin(IV) ethylcyclohexyldithiocarbamate, (C4H9)2Sn[S2CN(C2H5)(C6H11)]2 (compound 2) showed that the system of this crystal is triclinic with space group P-1 while dibutyltin(IV) methylcyclohexyldithiocarbamate, (C4H9)2Sn[S2CN(CH3)(C6H11)]2 (compound 1) has monoclinic system and it’s space group is P21/c. In the crystal structure of compound 2, the dithiocarbamate ligands are bidentically chelated to the tin atom with non-equivalent of the Sn-S distances: Sn(1)-S(1) = 2.9255(11) and …
Characterization Of Alginate Prepared From Brown Seaweeds In Thua Thien-Hue Province, Vietnam, Thien Tran Vinh, Kinh Chu Dinh, Hoa Tran Thai, Khieu Dinh Quang
Characterization Of Alginate Prepared From Brown Seaweeds In Thua Thien-Hue Province, Vietnam, Thien Tran Vinh, Kinh Chu Dinh, Hoa Tran Thai, Khieu Dinh Quang
ASEAN Journal on Science and Technology for Development
The characterization of alginate prepared from brown seaweeds in TT-Hue province of Vietnam was investigated. Composition and the sequential structure of alginate were determined by 1HNMR, 13C-NMR, TOCSY, 1H-1H COSY, and 1H-13C-HSQC spectrum. It is found that alginate with molecular weight around 101 KDa is composed of homopolymeric regions of M and G blocks, interspersed with very small amount of regions of alternating structure of MG block. This information is essential for application guideline of alginate in TT-Hue province.
Classification And Zoning Of Water Quality For Three Main Rivers In Binh Tri Thien Region (Central Vietnam) Based On Water Quality Index, Hop Nguyen Van, To Thuy Chau, Tung Truong Quy
Classification And Zoning Of Water Quality For Three Main Rivers In Binh Tri Thien Region (Central Vietnam) Based On Water Quality Index, Hop Nguyen Van, To Thuy Chau, Tung Truong Quy
ASEAN Journal on Science and Technology for Development
Huong, Thach Han and Kien Giang rivers are the important surface water sources in Thua ThienHue, Quang Tri and Quang Binh provinces, respectively (in Central Vietnam). The river water samples were taken monthly (from June 2001 to May 2002 for Kien Giang river and from January to December of 2004 for Thach Han and Huong rivers) at selected sites. The temperature, pH, conductivity (EC), salinity, turbidity (TUR), DO, COD, BOD5, nitrate, ammonia, phosphate, total solids (TS), hardness, total dissolved iron, total coliform (TC), fecal coliform (FC) and sodium adsorption ratio (SAR) of water samples were analyzed. Water quality index developed …
Application Of Nmr In The Investigation Of Dynamic Tautomerism Of 4(3h)-Quinazolinone System, My Pham Thi Thanh, Kinh Chu Dinh, Thuy Thanh Thi Thu, Vinh Nguyen Ngoc, Chi Nguyen Thi Phuong
Application Of Nmr In The Investigation Of Dynamic Tautomerism Of 4(3h)-Quinazolinone System, My Pham Thi Thanh, Kinh Chu Dinh, Thuy Thanh Thi Thu, Vinh Nguyen Ngoc, Chi Nguyen Thi Phuong
ASEAN Journal on Science and Technology for Development
Tautomerism of 4(3H)-quinazolinone system with [(2-hydroxyphenyl)methylene]-2-(4oxoquinazolin-3(4H)-yl)acetohydrazide and N’-[(1E)-(4-hydroxy-3-methoxyphenyl)methylene]-2-(4-oxoquinazolin-3(4H)-yl)acetohydrazide as two representative compounds was investigated on the basis of 1H NMR method at coalescence with the help of line formprogramme. The dynamic parameters such as k, Ea, DG*, DH*, DS* were fully calculated with high reliability.
Aromatase Inhibitory And Cytotoxic Activities Of Chemical Constituents From The Vietnamese Medicinal Plant Ban-Chi-Lien (Scutellaria Barbata D. Don), Thao Do Thi, Huan Le Quang, Hieu Do Khac, Chien Nguyen Quyet, Hung Nguyen Van
Aromatase Inhibitory And Cytotoxic Activities Of Chemical Constituents From The Vietnamese Medicinal Plant Ban-Chi-Lien (Scutellaria Barbata D. Don), Thao Do Thi, Huan Le Quang, Hieu Do Khac, Chien Nguyen Quyet, Hung Nguyen Van
ASEAN Journal on Science and Technology for Development
Aromatase inhibitory and cytotoxic activities were determined for apigenin, luteolin and the new diterpene named scutebarbalactone VN, which were obtained by bioassay-guided fractionation and isolation from the methanol extract of the Vietnamese medicinal plant Banchi-lien (Scutellaria barbata D. Don). In the aromatase inhibition assay, an IC50 value of 3.36 mM was found for scutebarbalactone VN, while IC50 values of 7.2 mM and 7.95 mM were found for the positive controls aminoglutethimide and b-estradiol, respectively. In the cytotoxicity assays using a panel of human cancer cell lines, scutebarbalactone VN showed promising anticancer activity with IC50 ranging from 2.15 to 8.3 mM …
Temporo-Spectral Coherent Structure Of Turbulence And Pressure Using Fourier And Wavelet Transforms, Le Thai-Hoa, Nguyen Dong-Anh
Temporo-Spectral Coherent Structure Of Turbulence And Pressure Using Fourier And Wavelet Transforms, Le Thai-Hoa, Nguyen Dong-Anh
ASEAN Journal on Science and Technology for Development
Studying the spatial distribution in coherent fields such as turbulent and turbulent-induced force ones is important to model and evaluate turbulent-induced forces and response of structures on the turbulent flows. Turbulent field-based coherent function is commonly used for the spatial distribution characteristic of induced forces in the frequency domain. This paper will focus to study spectral coherent structure of turbulence and forces in not only the frequency domain using conventional Fourier transform-based coherence, but also temporo-spectral coherent one in the time-frequency plane thanks to wavelet transform-based coherence for more understanding of the turbulence and force coherences and their spatial distributions. …
Principal Stresses In Non-Linear Analysis Of Bakun Concrete Faced Rockfill Dam, Ahmad Mohd Hilton, Noorzaie Jamaloddin, Al Qbadi Fayda
Principal Stresses In Non-Linear Analysis Of Bakun Concrete Faced Rockfill Dam, Ahmad Mohd Hilton, Noorzaie Jamaloddin, Al Qbadi Fayda
ASEAN Journal on Science and Technology for Development
With rapid population growth and accelerating economic development, much of the world’s WATER which requires urgent attention to ensure sustainable use. Nowadays, Concrete Faced Rockfill Dam (CFRD) is preferred among dam consultant due to its advantages. They are designed to withstand all applied loads; namely gravity load due to its massive weight and hydrostatic load due to water thrust from the reservoir. Bakun CFRD, which ranks as the second highest CFRD in the world when completed, is analyzed to its safety due to both loads mentioned earlier by using Finite Element Method. 2-D plane strain finite element analysis of non-linear …
Synthesis Of Acetic Acid From Ethanol By Electrooxidation Technique Using Ni-Cu-Pvc Electrode, Riyanto Riyanto, Othman Mohamed Rozali, Salimon Jumat
Synthesis Of Acetic Acid From Ethanol By Electrooxidation Technique Using Ni-Cu-Pvc Electrode, Riyanto Riyanto, Othman Mohamed Rozali, Salimon Jumat
ASEAN Journal on Science and Technology for Development
A usage of Ni-Cu-PVC electrode for the oxidation of ethanol by electrochemical technique will be reported in this paper. In this work, the effect of electrodes on the yields of acetic acid was determined. Electrode used was made of the mixtures of Ni powder, Cu powder and of polyvinyl chloride (PVC) with various percentages. Electrooxidation of 0.20 M ethanol in 0.16 M KOH (24 mL) were carried out using chrono coulometry (CC) at a potential of 1050 mV for 6 hours with continious stirring. Electrooxdation result obtained was analyzed using High Performance Liquid Chromatography (HPLC). The test result shows that …
A Study On The Effect Of Noise And Vibration On Operators’ Readability Task Performance In A Mobile Driving Environment, Khan Iqbal Ahmed, Mallick Z., Khan Zahid A.
A Study On The Effect Of Noise And Vibration On Operators’ Readability Task Performance In A Mobile Driving Environment, Khan Iqbal Ahmed, Mallick Z., Khan Zahid A.
ASEAN Journal on Science and Technology for Development
This paper presents a study in which the effect of noise and vibration on the task performance in a mobile driving environment is experimentally investigated. A readability kind of task, where a reading material was presented to the operators on a laptop screen was considered and the operators performed the task in a sitting posture without their back supported with the backrest of the seat. The task performance was measured in terms of mean number of characters read per minute by the operators, which served as data for statistical analysis. Results of the study showed that noise and vibration were …
Integrated Remote Sensing And Gis For Modeling Economic Rehabilitation Development Of Ex-Mine Sites, Junaidi Junaidi, Goh Eric K.H.
Integrated Remote Sensing And Gis For Modeling Economic Rehabilitation Development Of Ex-Mine Sites, Junaidi Junaidi, Goh Eric K.H.
ASEAN Journal on Science and Technology for Development
The potential environmental impacts of mining, increasing environmental legislation and public awareness have received increased attention world-wide in the last two decades. The focus of concern by the industry, environmental regulatory agencies and members of the public is the systematic rehabilitation of ex-mine sites to improve the quality at site for potential future commercial land use. The minerals extracted from these mine/quarry sites are essential in the construction, semiconductor, high-technology, ceramic and other manufacturing sectors for further industrial development. However, efficient engineering design and systematic economic evaluation of mine sites for site rehabilitation are required in maintaining the expected standards …