Articles

  1. A NEW COMPOSITE MADE FROM NON-METALLIC WASTE PRINTED CIRCUIT BOARDS: TABLE-TOP PRODUCT AS A PRACTICAL PROTOTYPE Download Article

    Premrudee Kanchanapiya, Sawanya Jareemit and Suphaphat Kwonpongsagoon
    • Article Type: Research Article
    • View Abstract
    • Pages (1-8)
    • No of Download = 164

    Abstract

    close

    This study aims to develop practical products that can be produced from non-metallic fraction (NMF) - a non-valuable waste from the copper recovery process of printed circuit board waste (PCBW) as a reinforcing material in glass fiber reinforced plastic (GFRP) furniture products. A table-top product was selected as the practical prototype. The results show that the new composite, called “NMF composite” can be used to replace the plywood layer or the glass fiber layer in table-top prototypes. The production process and physical properties of the new product, including weight changes, deflection and shrinkage, were studied. The advantage of the practical prototype production over the traditional GFRP production is that the processing time can be improved up to 32% because of no hand lay-up process involved. From the economic analysis and an environmental viewpoint, to promote the recycling of NMF as the filler material in FRP furniture product, government subsidy is necessary to motivate manufacturers to initiate the new product.

  2. USING GEOMATICS FOR ASSESSING VULNERABILITY TO CUTANEOUS LEISHMANISAIS. APPLICATION TO THE WILAYA OF BATNA (ALGERIA) Download Article

    Kalla Mohamed Issam and Guettouche Mohamed Said
    • Article Type: Research Article
    • View Abstract
    • Pages (9-15)
    • No of Download = 149

    Abstract

    close

    If the typology of epidemics varies considerably, their causes remain substantially related to many physical environment factors. The fact remains that the problem of vector-borne diseases is complex in view of the diversity of these diseases, the large number of vulnerabilities associated with them, and also the objective assessment of the impact of each of these factors. The use of geomatic tools, such as geographical information systems (GIS) and remote sensing techniques as spatial environmental phenomena and through the implementation of a GIS database, has enabled us to highlight the spatial distribution of these diseases and their magnitude, and has allowed us to subsequently relate them to some environmental factors that might explain the emergence of the disease and its importance. The results clearly show that approximately 48.89% of the total area of the province was found to be highly vulnerable, 2.83% at moderate vulnerability, while 48.28% of the province had low vulnerability.

  3. INOCULANTS FUNGAL Trichoderma, Mucor AND Bacillus FOR COMMUNITY DEVELOPMENT BASED ON SUFFICIENCY ECONOMY PHILOSOPHY Download Article

    Sukhan Rattanaloeadnusorn
    • Article Type: Research Article
    • View Abstract
    • Pages (16-23)
    • No of Download = 115

    Abstract

    close

    His Majesty King Bhumibol Adulyadej of Thailand has conceived and developed a new philosophy to improve the lives of the Thai people and bring them a genuine and lasting happiness. This new philosophy is called "sufficiency economy" or "sufficiency economy philosophy". This research has the objective to create and develop innovation Khok-kham bio-fertilizer for aimed to community development by inoculants Trichoderma, Mucor and Bacillus based on sufficiency economy philosophy. Khok-kham
    community in Samut Sakhon province and Khanom community in Nakhon Si Thammarat province were selected for studying the efficiency of innovation Khok-kham bio-fertilizer. Nutrient analysis of innovation Khok-kham bio-fertilizer indicates high macronutrients of Nitrogen, Potassium and Phosphorus with the 84.33% of average value. The planting mangrove tree remove heavy metals such as Lead (Pb), Cadmium (Cd) and Copper (Cu) in soil with the average value of 98.6%. Moreover, it can help speed up 4 times of mangrove tree rate when compared to control case. This can also be applied for recovering mangrove forest
    area in the condition of limits of times. Innovation Khok-kham bio-fertilizer, can increase rice productivity, reduce costs of 5-6 times and improve soils acid. In summary, innovation Khok-kham bio-fertilizer is very useful for planting mangrove, increasing the productive of organic rice, vegetable and restoring mangrove forest area so that the community is developed based on sufficiency economy philosophy.

  4. THE EFFECTS OF WATERING FREQUENCIES AND SLOW-RELEASED-FERTILIZER LEVELS ON THE GROWTH OF PLATYCERIUM CORONARIUM IN YOUNG SPOROPHYTE PHASE Download Article

    Sawat Pimsuwan, Yaowarat Wongsrisakulkaew, Nadda Jumradjit, Patthamawadee Thumsuk and Supawadee Mulmanee
    • Article Type: Research Article
    • View Abstract
    • Pages (24-28)
    • No of Download = 168

    Abstract

    close

    This study was conducted at the nursery of the Crop Production Department, Faculty of Agricultural Technology, Rajamangala University of Technology, from February to August 2015. The effects of two factors on the growth of P. coronarium ferns in the young sporophyte phase were assessed using a factorial in CRD experiment. Factor A consisted of 3 watering frequencies: watered every day, every two days and every three days. Factor B consisted of 4 levels of a commercial slow-released-fertilizer (SRF: 13-13-13, 3 months): 0 g, 1 g, 2 g and 3 g per pot. It was found that the ferns which received water once every three days possessed the highest canopy of 29.47 cm, a sterile leaf width of 14.054 cm, a fertile leaf width of 22.58 cm and a fertile leaf length of 22.20 cm. On the other hand, the fertilizer level of 2 g gave the highest canopy of 27.31cm and a sterile leaf width of 14.63 cm, while the fertilizer level of 3 g gave the biggest fertile leaf width of 21.54 cm and a fertile leaf length of 19.62 cm. However, no interaction between the two factors was demonstrated.

  5. SPECIES AND CHARACTERIZATION OF THE PARASITES IN THE THREE SPOT GOURAMI (TRICHOGASTER TRICHOPTERUS) Download Article

    Supamas Sriwongpuk
    • Article Type: Research Article
    • View Abstract
    • Pages (29-34)
    • No of Download = 151

    Abstract

    close

    In light of the significance of the three spot gourami (Trichogaster trichopterus Pallas, 1770) as a widely consumed main protein source, this research identifies and characterizes the parasites, especially those with the harmful health effects, residing in this fish species of the Thung Lam reservoir in Thailand’s northeastern province of Buriram. In the study, a total of 120 three spot gourami fish samples were examined and the findings revealed the presence of three parasitic species. Two external parasitic species were found in the gill filaments: Trianchoratus aecleithrium and Gyrodactylus sp., and another one in the intestines: Pallisentis nagpurensis. The discovery of the three host-specific parasitic species shows no clinical signs of disease in the fish, despite the presence of parasites on their fish hosts. It is also the case that fish-borne helminthic infections are commonplace in Thailand. Furthermore, these parasites could conveniently be eliminated by adequate cooking. Thus, to minimize the parasites-induced health risks, it is recommended that the fish must be thoroughly cooked prior to consumption.

  6. SCREENING TECHNIQUES FOR DOWNY MILDEW RESISTANCE IN GHERKIN CUCUMBERS Download Article

    Piyavadee Charoenwattana, Chanulak Khanobdee and Artit Udomyotin
    • Article Type: Research Article
    • View Abstract
    • Pages (35-42)
    • No of Download = 170

    Abstract

    close

    Downy mildew (Pseudoperonospora cubensis) causes significant losses in cucurbitaceous crops worldwide. P. cubensis isolates were obtained from infected cucumber leaves in Lampang province, Thailand during 2010-2012 in order to determine the downy mildew virulence. The isolates were tested for the presence of highly compatible reactions on specific hosts and categorized as the pathotype 3. This study determined a screening technique that could improve downy mildew resistance of gherkin cucumber lines (Cucumis sativus L.) grown under greenhouse and field conditions including inbred lines, gherkin varieties and hybrid parents of cucumbers. The pedigree method was applied to four generations of gherkin cucumber lines (F2-F5). The results showed an average mildew resistance score for 8 elite gherkin lines from the F5 generation after 40 days of transplanting. The score of the 8 elite lines was less than an average score for other gherkin and commercial cucumber varieties and was equivalent to an average score for downy mildew resistant varieties. On average, these 8 elite lines from the F5 generation had maximum yields as measured by a mean output of 26.9 tons per hectare (more than that of other gherkin cucumber varieties), mean fruits per plant of 32.6 fruits, and a mean weight of each fruit of 19.4 grams. It was concluded that a disease resistance breeding program using this screening technique and its application was successful in controlling and improving gherkin cucumber lines resistance to the downy mildew pathogen, and which led to increased productivity.

  7. RESEARCH AND DEVELOPMENT OF INCULCATION PROCESS FOR FUTURE AGRICULTURIST Download Article

    Suppasit Deeraksa, Paisarn Worakham and Piyatida Panya
    • Article Type: Research Article
    • View Abstract
    • Pages (43-47)
    • No of Download = 1190

    Abstract

    close

    The purpose of this study was to study agriculture wisdom holders and local academics and develop a process for the transfer of their knowledge in a multi-case study. The sample population was 2 agriculture wisdom holders and 2 local academics. Data collection was done through an in-depth interview, document study and through non-participatory observations. The development of the inculcation process of agriculture wisdom holders and local academics was evaluated by the experts using the focus group discussion method. The result of the data analysis and discussion with the expert group was the summarizing of the steps which were developed which included: an understanding of the issue, adjusting or modifying the way of thinking, transferring the knowledge and experience, field study at the farmland spot and practical performance and summarizing the knowledge through assessment.

  8. INFLUENCE OF ABIOTIC STRESS FACTORS ON BLACKCURRANT RESISTANCE TO PESTS Download Article

    I.V. Mashkova, T.G. Krupnova and A.M. Kostryukova
    • Article Type: Research Article
    • View Abstract
    • Pages (48-53)
    • No of Download = 111

    Abstract

    close

    Blackcurrant is one of the most valuable berries in a temperate zone. Lampronia capitalla Cl. is an extremely dangerous pest of blackcurrant in the South Ural region. Abiotic stress factors can significantly reduce blackcurrant resistance to L. capitella Cl. We studied blackcurrant in two areas and in a laboratory. The first area is situated close to a residential area, and a busy motorway is just 100 m from this station. The second area consists of 5 private household plots in an environmentally clean area, far from the city and motorways. We noted that, in the horticultural selection station, L. capitella Cl. population explosion was often three times more than in the household plots. We compared the growth of L. capitella Cl. larvae in nature and in the laboratory at different temperatures. The experiment lasted for 7 days at +25 °С in the laboratory, and for more than 13 days at daily average temperatures of +9.7 °… +15.1 °С in private household plots. We discovered that the larvae’s harmfulness increases at temperatures less than +25 °С. Under the influence of anthropogenic stress coefficient of assimilated food was higher than in clean areas because there is the low immunity of blackcurrant in adverse environmental conditions.

  9. USING BIRCH LEAVES TO INDICATE AIR POLLUTION Download Article

    T.G. Krupnova, I.V. Mashkova and A.M. Kostryukova
    • Article Type: Research Article
    • View Abstract
    • Pages (54-59)
    • No of Download = 96

    Abstract

    close

    The present study investigated the utility of Bétula pubéscens L. leaves as a bioindicator of air pollution within an industrial Russian city. The study focused on the effects of air pollution on fluctuating asymmetry (FA) of leaves. B. pubéscens L. leaves (n=3800) were sampled from 190 trees growing at 38 different sites in Chelyabinsk. The relationship between the data was determined using Pearson’s test with a significance level of 0.05. Correlations were observed between the integral index of fluctuating asymmetry (IIFA) and air pollutants such as suspended solids (P=0.527), nitrogen dioxide (P=0.313), sulfur dioxide (P=0.355), inorganic dust SiO2 (P=0.790), and the air pollution index (P=0.607). The correlation was the highest for inorganic dust since dust clogs the stomata on the leaves of plants, affecting their photosynthesis and respiration. B. pubéscens L. could be considered as a bioindicator of air pollution of Chelyabinsk, Russia.

  10. STUDY OF SYNANTHROPIC PLANTS OF THE SOUTH URAL Download Article

    A.M. Kostryukova, I.V. Mashkova, T.G. Krupnova and E.E. Shchelkanova
    • Article Type: Research Article
    • View Abstract
    • Pages (60-65)
    • No of Download = 90

    Abstract

    close

    The present study aimed to assess the long-term dynamics of the synanthropic vegetation of the road and path network of the Ilmen State Reserve. The analysis of the synanthropic species spread among coenofloras of the elements of the road and path network revealed an increasing synanthropization index in the gradient of the stress factor for all forest types. Pine forest is the most resistant to the introduction of synanthropic species. The paper considers the element composition in the period before seed formation. 10 weeds most common in the central regions of Russia were analyzed. The studied weeds can accumulate metals in their green mass. Some wild plants are potentially resistant to metals, as they can grow on heavily dirty substrates. The analysis of the vegetational metals shows that most of the species do not translocate metals into their overground part, so they act as excluders. Due to the human-made impact on the natural landscape, synanthropic species of plants are taking a significant place in the structure of biodiversity.

  11. TOXICITY OF SIO2, TIO2 AND CEO2 NANOPARTICLES EVALUATED USING THE BIOLUMINESCENCE ASSAY Download Article

    Kosyan D.B., Yausheva E.V., Vasilchenko A.S., Vasilchenko A.V. and Miroshnikov S.A.
    • Article Type: Research Article
    • View Abstract
    • Pages (66-73)
    • No of Download = 108

    Abstract

    close

    The development of technology and industry has made available a variety of different nanomaterials. Particularly popular in practical use have been silicon dioxide nanoparticles and titanium and cerium dioxides. However, it is necessary to evaluate the biological activity of nanoparticles from the point of view of toxicology. Despite the active use of nanoparticles of silicon dioxide and dioxides of titanium and cerium, little is known about their toxic effects on living organisms. This work presents a study of three various nanoparticles of silicon dioxide and dioxides of titanium and cerium. For investigations of nanoparticles morphology and their contact with E. coli K12 TG1 cells, suspensions alone or previously mixed with nanoparticles, were applied to freshly prepared mica. To assess the activity of the nanoparticles against E. coli K12 TG1 cells, we used a previously described version of bioluminescent analysis. TiO2 particles having smaller dimensions were characterized by a higher toxicity compared to SiO2. These results characterized TiO2 (I) as toxic and confirm the statement that size matters. Metal particles of CeO2 in the studied concentrations of 0.1–0.000195 M did not cause changes in the dynamics of bacterial bioluminescence. The results were confirmed by studies carried out using lux-biosensors: E. coli K12 MG1655 pkatG'::lux (for the detection of peroxide of hydrogen) and E. coli K12 MG1655 psoxS'::lux ( for the detection of superoxide anion)) for the assessment of oxidative damage.

  12. INVESTIGATION OF JABUNG TEMPLE SUBSURFACE AT PROBOLINGGO, INDONESIA USING RESISTIVITY AND GEOMAGNETIC METHODS Download Article

    Adi Susilo, Sunaryo, Kosmas Isdarmadi and Rusli
    • Article Type: Research Article
    • View Abstract
    • Pages (74-80)
    • No of Download = 81

    Abstract

    close

    Subsurface structural estimation has been investigated with dipole-dipole resistivity configuration and magnetic methods for mapping of Jabung Temple Archaeological Site located in Jabung Village, Paiton Sub-District, Probolinggo Regency, East Java with Resistivity meter OYO MacOhm and Proton Precession Magnetometer. This estimate aims to determine the spread and depth of the rocks below the surface of the Archaeological Site of Jabung Temple as well as a source of information for the discovery of ancient objects still buried in the soil. The acquisition of resistivity data was performed on ten measuring tracks and covered the measurement area of ± 37,900 m2. Six trajectory tracks are located around Menara Sudut Temple and four line are located in the area of Jabung Temple. The acquisition of magnetic data is made around the area of Jabung Temple at 924 points with spacing of 2.5 meters, with the area of 5,200 m2. Based on the interpretation of magnetic anomaly and resistivity data, the magnetic anomaly value, <16.9 nT is likely to indicate the remains of temple ornaments located at a distance of 20 meters in front and behind the main temple. This is supported by a resistivity value from 33.0 Ω.m to 92.6 Ω.m which indicates the remains of the temple building blocks. The depths of the remains of temple rock are thought to be at an average of 1.8 meters below ground level. Magnetic anomaly is high in the main temple, equal to > 22.6 nT due to andesite rock used as a temple booster (based on information obtained during the restoration of 1983/1984). The results of this study indicate that geoelectric and magnetic methods are very effective for the prediction of subsurface structures, especially in the archaeology field.

  13. COAL BED METHANE PROPERTIES MODELING USING IMPROVED SEISMIC RESOLUTION FOR ESTIMATING GAS RESERVES: A CASE STUDY OF EAST KALIMANTAN FIELD, INDONESIA Download Article

    Abdul Haris, Choirul Imam, Ng Bei Berger and Agus Riyanto
    • Article Type: Research Article
    • View Abstract
    • Pages (81-87)
    • No of Download = 106

    Abstract

    close

    Coal bed methane (CBM) potential resources are distributed in many areas of East Kalimantan and are estimated to total about 50 trillion cubic feet (TCF). To estimate more accurately the potential reserves of CBM, sub-surface modeling of CBM properties is required. The objective of this study is to estimate the gas methane reserves by using deterministic and probabilistic approaches, which are based on the identified coal seam distribution. This work is carried out by estimating the gas content parameters (moisture, ash, volatile matter, and fixed carbon), which are derived by empirical approximation from geological and geophysical information. The property modeling of CBM parameters is then distributed, based on the three-dimensional (3D) framework of the identified coal seam distribution. In the well log data, several coal seams can be recognized using the electric log characters, especially the gamma ray, resistivity, and density logs. Coal seams are indicated by a low-density value and high resistivity. In this field, coal seams can be identified at depths ranging from 400 to 1100 m. The gas-in-place (GIP) was estimated in reference to the identified coal seam along the 3D geometrical framework. The results show that based on the probabilistic approach, the GIP ranges between a minimum of 8.9 billion cubic feet (BCF) and a maximum of 493.7 BCF, with a mean of 47.7 BCF, while based on the deterministic approach the GIP is 107.7 BCF.

  14. INHIBITION OF BACTERIAL QUORUM SENSING BY THE RUMINAL FLUID OF CATTLE Download Article

    Karimov Il'shat, Duskaev Galimzhan, Inchagova Kseniya and Kartabaeva Madina
    • Article Type: Research Article
    • View Abstract
    • Pages (88-92)
    • No of Download = 91

    Abstract

    close

    Rumen fluid contains factors that inactivate autoinducers, monitor microflora development and prevent the mobilization of virulence properties, and thus, the formation of resistant bacteria. The aim of this study was to assess the ability of rumen fluid to suppress the intercellular communication of bacteria by inactivating the N-acyl-homoserine lactones. We used strains of luminescent Escherichia coli JLD271 which were transformed with plasmids containing quorum sensing genes and luminescence genes. Bacteria were cultivated in LB agar medium containing 10 ug/ml doxycycline then in LB medium until the early exponential growth phase. The autoinducers used were N-butyryl-L-homoserine lactone (C4-HSL), N-(3-oxo)-hexanoyl-L-homoserine lactone (oxo-С6-HSL) and N-dodecanoyl-L-homoserine lactone (C12-HSL). The ruminal fluid of young calves was collected via a fistula. Equal volumes of ruminal fluid and autoinducers were incubated then added to the cultures of luminescent bacterial strains. Dilution of the ruminal fluid up to 12.5% did not affect the luminescence of the bacterial biosensors. Incubation of ruminal fluid with N-acyl-homoserine lactones decreased their activity, marked by unexpressed specificity. The most effective inhibition of the N-(3-oxo)-hexanoyl-L-homoserine lactone was observed at 10-7 M, and above this concentration the efficiency of quorum sensing inhibition decreased. Ruminal fluid was able to inactivate N-acyl-homoserine lactones, and the efficiency of inhibition was not related to the length of the alkyl tail in the signal molecule. This suggests the ability of the ruminant digestive system to control bacteria by the inactivation of N-acyl-homoserine lactones, which regulate the quorum sensing system.

  15. MODEL LAND COVER INDEX – PEAK DISCHARGE IN MANAGEMENT OF RIVER BASIN Download Article

    Sri Sangkawati Sachro, Sutarto Edhisono, Wahyu Prasetyo and Vittorio Kurniawan
    • Article Type: Research Article
    • View Abstract
    • Pages (93-100)
    • No of Download = 161

    Abstract

    close

    A change of the characteristic of a river basin’s component could transform the behaviour of the basin as a whole. In some parts of Indonesia, the land-use changes from forest into settlement, industry, and farming increase the risk of flooding. Therefore, it is important to understand the correlation between the changes of various land uses and runoff discharge in a river basin. This study makes an attempt to formulate the relation between the land-use change indexes and run-off discharge, i.e. the correlation between the changes in the index of covered land in a river basin and the change in the peak run-off discharge. The peak discharge is computed with HEC-HMS software, developed by the Hydrologic Engineering Center (HEC) and US Army Corps of Engineers, which computes the run-off discharge from the precipitation. As for the land cover index (LCI), it is defined as the sum of the land-use index (LUI). The result of the case study in the Beringin river basin (Indonesia) shows the strong correlation between the change in the land cover index and the change in the run-off discharge with such a relation: DQ = -4E - 05 DLCI2 + 0.0788 DLCI + 6.6187 or DLCI = 0.25 DQ2 + 6.24 DQ - 47.40. DQ is defined as the change in the run-off discharge and DLCI is the change in the land cover index.

  16. EQUATION MODEL FOR MUNICIPAL SOLID WASTE COLLECTION AND TRANSPORTATION IN MANADO CITY Download Article

    Teddy Takaendengan Tri Padmi Emenda Sembiring and Enri Damanhuri
    • Article Type: Research Article
    • View Abstract
    • Pages (101-106)
    • No of Download = 126

    Abstract

    close

    This study aimed to obtain an equation model of the collection and transportation of Municipal Solid Waste (MSW) in Manado City, North Sulawesi. Common problems typically encountered in a system of waste management are, in particular, the vehicle routing, the loading capacity of the vehicle, travel time, the working time per day, and high operational costs. The methodology used in data retrieval is direct observation. Meanwhile, to create MSW collection and transportation equation model, drawing logical paths and pathways are made. After that, continue by defining the problem, setting goals, assigning functions as influential factors, making notations. To apply the equations, C ++ is used with a Codeblock editor. Three scenarios were developed in which scenario 1 uses an individual pattern directly, scenario 2 uses a pattern combination between individual directly with the communal directly, and scenario 3 uses a communal pattern directly. The analysis results show that scenario 3 produces a smaller value than scenarios 1 and 2. The number of vehicles required for scenario 3 is 45, and the number of routes per year is as high as 45,000. The distance is 674,172 km/year and the travel time is 120,242 hours/year. The conclusion is that optimization of travel time is proportional to the distance and operating costs as well as environmental costs. The operation of TPS3R, which facilitated by the government and managed by the community, requires active community involvement. Waste is reduced significantly, and the use of waste carrier vehicles is also reduced because the travel time and mileage decrease. The operational costs of waste management also decrease.

  17. INSECTICIDE SUSCEPTIBILITY OF AEDES AEGYPTI LARVAE TO BACILLUS THURINGIENSIS ISRAELENSIS AND JUVENILE HORMONE IN DENGUE EPIDEMIC AREAS OF SAMUTSONGKHRAM, THAILAND Download Article

    Tanawat Chaiphongpachara, Jirawan kaebkhunthod, Sedthapong Laojun, Chaekki Kunphichayadecha, Wanvisa Saisanan Na Ayudhaya and Wallapa Wassanasompong
    • Article Type: Research Article
    • View Abstract
    • Pages (107-111)
    • No of Download = 133

    Abstract

    close

    Dengue hemorrhagic fever (DHF) remains one of Thailand’s main public health problems. Samutsongkhram is one of the areas undergoing an epidemic of this disease. To control this disease, public health officers focus on regulating the population of Aedes aegypti larvae. The aims of this research were to study the susceptibility of Ae. aegypti to Bacillus thuringiensis israelensis (Bti) and juvenile hormone, in order to end the spread of this disease in three epidemic DHF outbreak sub-districts of Ladyai, Suanluang and Jompuak. The results revealed that Ae. aegypti is susceptible to Bti and juvenile hormone in all areas, with a 100% death rate. Exposure to Bti eradicated the larvae in a very short time of less than 18 hours. In addition, juvenile hormone can completely hinder the growth of Ae. aegypti to adult stages. The results demonstrate the effectiveness of these agents for mosquito larvae eradication. Therefore, insecticidal bacterium and juvenile hormone may be an option to reduce the number of DHF patients in Samutsongkhram, Thailand.

  18. ANALYSIS OF TRAFFIC CHARACTERISTICS AND GOODS TRANSPORT IN MANADO, INDONESIA Download Article

    Bambang Patmo Widodo, Harnen Sulistio, Achmad Wicaksono and Ludfi Djakfar
    • Article Type: Research Article
    • View Abstract
    • Pages (112-117)
    • No of Download = 133

    Abstract

    close

    The economic growth of a region is strongly influenced by the smooth flow of traffic. The movement of freight by highway in Manado leads to the problem of traffic jams. To solve the congestion, it is necessary to know the traffic characteristics and the pattern of the origin of the destination. Through a curbside survey in which the respondents were freight drivers, the origin - destination matrix (OD matrix) was created. The traffic characteristics and the pattern of origin of the goods transport were analyzed. The results of the research showed that the total movement was dominated by entrance to exit of Manado from Kairagi to Tuminting with the movement of freight vehicles amounting to 27.03% of the total movement of goods transport in the study area. It was concluded that the users should operate at night for reduce a congestion and that a goods-holding zone should be established.

  19. ANALYSIS OF GALTON-HENRY CLASSIFICATION METHOD FOR FINGERPRINT DATABASE FVC 2002 AND 2004 Download Article

    Riki Mukhaiyar
    • Article Type: Research Article
    • View Abstract
    • Pages (118-123)
    • No of Download = 136

    Abstract

    close

    According to Galton-Henry, fingerprint classification varies into arch, tented arch, left loop, right loop, whorl, and twin loop schemes. The approach is depended on the existence of a core and delta of each fingerprint. If this method is implemented for all fingerprint benchmark databases, then less than 41% of the fingerprint is being classified, by 37.19% for FVC 2002 and 40.31% for FVC 2004. Therefore, in this research, three requirements are needed to improve the classification result of the fingerprint, i.e. core point and its number, ridge frequency and ridge direction, and tented arch as additional requirement. This approach improves the result which is only 5.94% and 1.56% that is unclassified for FVC 2002 and 2004 consecutively. Then, to evaluate the time taken in executing the algorithm, this research does the evaluation by offering two possible conditions of the input of the fingerprint. The first type is without the fingerprint classification, while the second type is with the classification step along the algorithm process. The latter type requires an additional step namely RoI selection process to select a desired area of the fingerprint.

  20. RESEARCH OF OPPORTUNITIES FOR USING IRON NANOPARTICLES AND AMINO ACIDS IN POULTRY NUTRITION Download Article

    Miroshnikov S.A., Yausheva E.V., Sizova E.A., Kosyan D.B. and Donnik I.M.
    • Article Type: Research Article
    • View Abstract
    • Pages (124-131)
    • No of Download = 130

    Abstract

    close

    The goal of the study is the opportunity for the combined use of iron nanoparticles with arginine and other amino acids in poultry nutrition. The iron nanoparticles (nanoFe) were obtained through high-temperature condensation and had a size of 80 ± 5 nm. The duration of the experiment on broiler chickens is 28 days. During the study of the amino acid composition of poultry liver, there was an increase by 3.1-4.2% in the content of arginine when feeding nanoFe in the period of 7-28 days of the experiment; and by 3.5-3.7% of amino acids with nanoFe on day 7 of the experiment. Adding nanoFe in poultry’s diet is accompanied by an increased content of NO-metabolites in the liver by 3.1-3.5%. The enrichment of the food with nanoFe helped to increase the iron concentration in the body of poultry by 5.3% during the experiment; when combined with arginine – by 4.5%. The total pool of iron in the body of poultry has increased by 13.0%; when combined with arginine –14.6%, amino acid complex – 17.3%. Using nanoFe in compound feed resulted in an increase of erythrocytes in blood, and with the additional feeding of amino acids the increase was more significant. The most body weight of poultry at the end of the experiment is noted when combined feeding nanoFe and the complex of amino acids. The use of amino acids in feeding without the inclusion of nanoFe is accompanied by an increase in the body weight by 6.1-9.4%.

  21. UTILIZATION OF WASTE PLASTICS TO ENHANCE THE PERFORMANCE OF MODIFIED HOT MIX ASPHALT Download Article

    Aymen Awad and Feras Al adday
    • Article Type: Research Article
    • View Abstract
    • Pages (132-139)
    • No of Download = 115

    Abstract

    close

    Large quantities of refused plastic material were produced due to industrial development. These solid waste having an adverse impact on environment. Moreover, the increase of the plastic refuse which causes severe fear for public led in parallel to search effective and useful manner to find out any other method to sustainable. The paper was conducted to find out any treatment for the problem of the management of plastic municipal solid waste (MSW) in Jordan using as additive in the modification of road aggregate performance. In the same time, this will contribute to reduce the environmental impact of the plastic solid waste. This refused plastic was utilized to improve the asphalt performance. The first sets of experiment were carried out upon a six samples were tested with asphalt percentages of (5, 5.5, 6, 6.5, 7 and 7.5) at 60oC and the results gave that the optimum asphalt ratio was to be 7%. The second sets of testing were conducted for the optimum amount of refused plastic added to another six sets of samples tested at different percentage of refused plastic as follows (2, 2.5, 3, 3.5, 4 and 4.5 %) at 60oC and the results gave that the optimum ratio of plastic added was 4%. The results of the comparative study between hot mix asphalt and modified hot mix asphalt show that the addition of plastic has a significant positive effect on the properties of HMA, and mitigating the adverse effect on the environment.

  22. A MODEL OF LOCAL CONTENT DISASTER-BASED CURRICULUM AT ELEMENTARY SCHOOLS Download Article

    Alwen Bentri
    • Article Type: Research Article
    • View Abstract
    • Pages (140-147)
    • No of Download = 125

    Abstract

    close

    West Sumatera geographical conditions are prone to natural disasters and earthquakes, resulting in people vulnerable to becoming victims. This is especially true for students, because they do not have the capacity to face earthquake disasters. Therefore, it is important to equip learners systematically and massively on a wide range of knowledge, attitudes/values, and basic skills required by the curriculum in schools in order to minimize the risk of earthquakes. Related to this, the present study was conducted in order to produce a model of local content disaster-based curriculum, especially about earthquakes, for elementary school students. This research was developed by using a conceptual model comprised of several stages: a literature review, a needs analysis, development of the draft, validation/expert tests, revisions, activities of focus group discussions, and finalization of models. The data was obtained from various elements of information that were relevant to earthquakes through questionnaires, the assessment format, and recording of the activities of focus group discussions; these methods were analyzed by using a descriptive qualitative analysis. The results of this development were the formulation of course objectives, competency standards, basic competencies, subject matter, approaches to learning, teaching methods, and types of assessment. These components are interrelated to one another and have clear ideas, are comprehensive, and are positioned to equip students to be functional in the face of an earthquake.

  23. DESIGN AND COMPARISON OF FIVE TOPOLOGIES ROTOR PERMANENT MAGNET SYNCHRONOUS MOTOR FOR HIGH-SPEED SPINDLE APPLICATIONS Download Article

    Wawan Purwanto, Risfendra, Donny Fernandez, Dwi Sudarno Putra and Toto Sugiarto
    • Article Type: Research Article
    • View Abstract
    • Pages (148-154)
    • No of Download = 137

    Abstract

    close

    The permanent magnet rotor structures had a marked influence on the torque, efficiency, and power density of permanent magnet synchronous motor (PMSM). This paper presents the design and comparison of five different rotor topologies of PMSM. The rotor topologies including surface magnet, decentered magnet, broad-loaf magnet, buried (spoke) magnet, and interior permanent magnet. The optimal design was established using the Taguchi method and finite element analysis (FEA). The purpose of the study was to create a design solution for PMSM rotor with high output power, torque, and efficiency for high-speed spindle applications. The performance characteristics which including magnetic thickness and mass, magnetic flux density, cogging torque, torque and efficiency were compared and analyzed through a two-dimensional (2D) transient FEA, and the feasibility of the rotor designs is validated. The results show that the decentered permanent magnet motor generates the highest magnetic flux density, thus yielding the highest output power, torque, and efficiency.

  24. EFFECT OF BIO-EXTRACTS ON GROWTH AND QUALITY OF LETTUCES Download Article

    Yaowarat Wongsrisakulkaew
    • Article Type: Research Article
    • View Abstract
    • Pages (155-159)
    • No of Download = 103

    Abstract

    close

    The aim of this work was to determine the effects of bio-extracts on growth and quality of lettuces. The experimental design was RCBD (Randomized Complete Block Design) with 3 treatments and 4 replications include chemical fertilizer (16-16-16), bio-extract of fish meal and bio-extract of soybean meal. This experiment was conducted at The Division of Crop Production, Faculty of Agricultural Technology, Rajamangala University of Technology Thanyaburi. The result of this study showed that the vegetative yield of butter head and red oak lettuces treated with bio-extract of fish meal and soybean meal was similar to chemical fertilizer. There was no statistically difference on the vegetative yield of red coral and green oak lettuces. Both of bio-extract of fish meal and soybean meal could increase the color of leaves in red oak and green oak lettuces than chemical fertilizer. Bio-extract of fish meal could increase the color of leaves in red coral and butter head lettuces than bio-extract of soybean meal and chemical fertilizer respectively.

  25. FACIES MODELING OF KAIS FORMATION LIMESTONE: A CASE STUDY OF KAFOR FIELD, WEST PAPUA, INDONESIA Download Article

    Abdul Haris, Irwan Barlett Siburian and Agus Riyanto
    • Article Type: Research Article
    • View Abstract
    • Pages (160-166)
    • No of Download = 119

    Abstract

    close

    Facies modeling of Kais Formation limestone was carried out in the Kafor field, West Papua. Kais Formation limestone of Middle Miocene ages is the main reservoir that produces hydrocarbon in Kafor field. This field is located at Bintuni, West Papua. The objectives of this work are to perform detailed depositional facies analysis and to interpret the diagenesis process using rock typing for assessing the potential of the carbonate reservoir. Kais Formation limestone was classified into three members; Upper Kais, Middle Kais, and Lower Kais, which are associated with five different facies (i.e., shelf, front reef, inter reef, back reef, and core reef facies). The associated facies were interpreted as reefal platform carbonate. The reservoir quality was reviewed by facies distribution, petrography, and biostratigraphy. Our analysis shows that the Upper and Middle Kais were controlled by compaction and dominated by fractured porosity, while in contrast, the Lower Kais was controlled by dolomitization and dissolution diagenesis.

  26. LINEAR MICROSTRIP RESONATOR FOR UWB RFID TAG Download Article

    Muhammad I. Ibrahimy, A.K.M. Zakir Hossain and S.M.A. Motakabber
    • Article Type: Research Article
    • View Abstract
    • Pages (167-172)
    • No of Download = 170

    Abstract

    close

    The data storage capacity is directly proportional to the number of bits on board of the tag. The main challenge in UWB tag development is to maintain higher number of bits while keeping the tag within the standard size. Higher number of bits also ensures more security and anti-tempering protection of the tagging. In addition, reducing the dimensions of the tag can lead to the possibilities of fully replacing the existing barcode identification system. A new type of planar shorted parallel coupled line microstrip resonator which can replace the existing planar rectangular type resonator has been proposed in this paper. The theoretical approximation and simulation have been performed. A 20-bit resonator has been designed and developed that works between 4.6GHz and 8.1GHz. It is found that the bit density per unit area (cm2) is about 6.67 bit/cm2 has been achieved. The simulation has been performed by CST MWS 2017. The results would motivate the researchers to develop a higher bit density UWB passive RFID tag.

  27. UNMANNED ROTORCRAFT IN AGGRESSIVE ENVIRONMENT: AERODYNAMIC FLOW PERFORMANCE AGAINST WIND GUST Download Article

    Ziad Bin Abdul Awal
    • Article Type: Research Article
    • View Abstract
    • Pages (173-182)
    • No of Download = 176

    Abstract

    close

    Unmanned rotary-wing aircrafts or rotorcrafts are often prone to diverse atmospheric turbulences, and undeniably, abrupt gusts are reckoned to be the most acquainted commotion of them. Time and again, gust turbulence have dictated being the regulating trigger for countless mishaps concerning micro aerial vehicles. Given that the core/main rotor provides principal lift along with governing directional control and dynamic stability for any rotorcraft, the demeanors of thrust or induced air-flow through the gyrating blades largely signify the barebones of its functionality. This paper presents an idiosyncratic approach towards reviewing the impact of wind gust on rotor induced aerodynamic flow performance of an unmanned rotorcraft. Artificial gusts have been generated through the inherent concept of forced pitched oscillation without the use of any conventional wind tunnel. Gust air-speed and the rotor induced air-speed are gauged through the same contraption to provide homogeneous quantitative valuation. Each rotor-halves have been assessed ‘root-to-tip’ across designated span-wise positions against selected strengths of gust. Comparative analysis with normal atmospheric condition indicated gradual loss of cumulative thrust during hover (15-40%) and forward flight (10-30%) within the stipulated gust range and infers the risk of declining altitude. Protuberant imbalance of thrust across the rotor disk during hover indicated the likelihood of lackadaisical half-pitched rolling motion. However, during forward flight, the reduced discrepancy of thrust between the rotor halves signified gradual loss of cruising speed with regards to the increasing gust strength for the specific rotorcraft model. Experimental findings in this study exhibited prospect of appraisal with full-scale rotorcrafts.

  28. MICROSTRIP COUPLED LINE BANDPASS FILTER WITH RADIAL STUBS FOR NARROW-BAND APPLICATIONS Download Article

    S. M. Kayser Azam, Muhammad I. Ibrahimy, S. M. A. Motakabber and A. K. M. Zakir Hossain
    • Article Type: Research Article
    • View Abstract
    • Pages (183-188)
    • No of Download = 240

    Abstract

    close

    The necessity of creating channels by utilizing narrow-bands in high frequency regions is a matter of concern for the next generation-oriented wireless communication systems. A microstrip bandpass filter for narrow-band applications has been proposed in this article. Two coupled line filters with tapered line resonators are loaded at the mid-points of two identical pairs of radial stubs. The scalable length of microstrip lines to extend the radial stubs provides over 536 MHz shift of the resonant frequency with a narrow-band at each perturbing step. The proposed filter has been designed on Taconic TLX-8 substrate with 0.5 mm thickness and its filtering parts occupy a nominal area of 131.09 mm2 without feedlines. The fabricated filter exhibits nearly a 50 MHz pass-band at 6.428 GHz center frequency according to the measurement. Steep response of this filter entirely attenuates the out-band signal which enables it to be suitable for narrow-band applications in the higher frequency regions of C-band and ultra-wideband.