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  • 1
    Online Resource
    Online Resource
    Rain Scanner Radar and Optical Flow Combination For Early Identification of The Incoming Bow Echo Heavy Precipitation
    IOP Publishing ; 2023
    In:  IOP Conference Series: Earth and Environmental Science Vol. 1245, No. 1 ( 2023-09-01), p. 012031-
    Details
    In: IOP Conference Series: Earth and Environmental Science, IOP Publishing, Vol. 1245, No. 1 ( 2023-09-01), p. 012031-
    Abstract: In this study, heavy precipitation in the form of bow echo is observed, identified, and tracked using a rain scanner and optical flow method. Two case studies of bow echoes with a range of properties from 15 to 33 km were observed in the afternoon on 1st February and 4th February 2021. The rain scanner developed based on X-band radar could obtain the first detection of the bow echo shape. The difference between these two bow echoes events is from their initiation. The first bow echo cases are initiated from weakly organized cells. Meanwhile, the second case of bow echo is initiated from a squall line event. Bow echo is initially observed in the western part of Bandung city. Approximately twenty minutes after the first detection, the bow echo passed the center of Bandung city. Image processing using edge detection could track the bow echo from the radar data. Applied Lucas-Kanade optical flow was then used to retrieve the bow echo movement. Vector flow from optical flow showed the dominant movement toward the east direction in both case studies. A simple method to predict the incoming time of the bow echo using the estimated speed from vector flow and the image translation is also presented.
    Type of Medium: Online Resource
    ISSN: 1755-1307 , 1755-1315
    URL: Article
    DOI: 10.1088/1755-1315/1245/1/012031
    Language: Unknown
    Publisher: IOP Publishing
    Publication Date: 2023
    detail.hit.zdb_id: 2434538-6
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  • 2
    Online Resource
    Online Resource
    Social support among older adults in Malaysia
    Wiley ; 2020
    In:  Geriatrics & Gerontology International Vol. 20, No. S2 ( 2020-12), p. 63-67
    Details
    In: Geriatrics & Gerontology International, Wiley, Vol. 20, No. S2 ( 2020-12), p. 63-67
    Abstract: This study aimed to determine the factors that influence perceived social support among older adults in Malaysia. Methods We used the 11‐item Duke Social Support Index to assess perceived social support through a face‐to‐face interview. Higher scores indicate better social support. Linear regression analysis was carried out to determine the factors that influence perceived social support by adapting the conceptual model of social support determinants and its impact on health. Results A total of 3959 respondents aged ≥60 years completed the Duke Social Support Index. The estimated mean Duke Social Support Index score was 27.65 (95% CI 27.36–27.95). Adjusted for confounders, the factors found to be significantly associated with social support among older adults were monthly income below RM1000 (−0.8502, 95% CI −1.3523, −0.3481), being single (−0.5360, 95% CI −0.8430, −0.2290), no depression/normal (2.2801, 95% CI 1.6666–2.8937), absence of activities of daily living (0.9854, 95% CI 0.5599–1.4109) and dependency in instrumental activities of daily living (−0.3655, 95% CI −0.9811, −0.3259). Conclusion This study found that low income, being single, no depression, absence of activities of daily living and dependency in instrumental activities of daily living were important factors related to perceived social support among Malaysian older adults. Geriatr Gerontol Int 2020; 20: 63–67 .
    Type of Medium: Online Resource
    ISSN: 1444-1586 , 1447-0594
    URL: Issue
    URL: Article
    DOI: 10.1111/ggi.v20.S2
    DOI: 10.1111/ggi.14033
    Language: English
    Publisher: Wiley
    Publication Date: 2020
    detail.hit.zdb_id: 2078308-5
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  • 3
    Online Resource
    Online Resource
    Surface modification of acid-functionalized mesoporous gamma-alumina for non-fission 99Mo/99mTc generator
    Elsevier BV ; 2022
    In:  Applied Radiation and Isotopes Vol. 187 ( 2022-09), p. 110342-
    Details
    In: Applied Radiation and Isotopes, Elsevier BV, Vol. 187 ( 2022-09), p. 110342-
    Type of Medium: Online Resource
    ISSN: 0969-8043
    URL: Article
    DOI: 10.1016/j.apradiso.2022.110342
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2022
    detail.hit.zdb_id: 1499873-7
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  • 4
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    Online Resource
    Pushover analysis in slab-on-piles bridge using reinforced concrete-filled spun piles
    IOP Publishing ; 2023
    In:  IOP Conference Series: Earth and Environmental Science Vol. 1244, No. 1 ( 2023-09-01), p. 012013-
    Details
    In: IOP Conference Series: Earth and Environmental Science, IOP Publishing, Vol. 1244, No. 1 ( 2023-09-01), p. 012013-
    Abstract: Slab-on-piles is a bridge structure consisting of a continuous pile as a pier, pile head, and slab. Generally, the spun pile is chosen as the pile pier because of the quick construction and low maintenance. However, due to the hollow section with prestressed concrete, without filler, it has weakness in the form of brittle failure under bending moment and shear. Some studies mention that the initial failure occurs due to an explosion in the inner surface of the hollow spun pile or on the surface of the hole. The implementation spun pile for the slab-on-piles bridges should consider that behavior. Therefore, some practical engineers usually use concrete-infill treatment, however, the performance improvement in the nonlinear behavior needs to be known. This study investigates the use of hollow spun piles filled with concrete and normal reinforcement for a slab-on-piles bridge structure. This type of spun pile will be referred to as a reinforced concrete-filled spun pile (RCFSP). The location of slab-on-piles bridge is assumed to be built in Aceh, Indonesia. The height of the RCFSP on the slab-on-piles bridge is 6 m relative to the ground surface. A preliminary design using the linear elastic method is conducted using the response modification factor of 3.5. The slab-on-piles bridge requires 25 RCFSP for each bridge segment. Based on the pushover analysis method, this structure could not reach a performance point. A redesign is conducted using a response modification factor of 1.5. The redesign result shows that the structure requires 60 RCFSP and a performance point is found at a displacement of 85 mm in the longitudinal direction and 81 mm in the transversal direction. This research concludes that a slab-on-piles bridge is not efficient to be designed with a high value of response modification factor even though using the concrete-infill treatment.
    Type of Medium: Online Resource
    ISSN: 1755-1307 , 1755-1315
    URL: Article
    DOI: 10.1088/1755-1315/1244/1/012013
    Language: Unknown
    Publisher: IOP Publishing
    Publication Date: 2023
    detail.hit.zdb_id: 2434538-6
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  • 5
    Online Resource
    Online Resource
    Analysis Of RC Precast Modular Building with Frame Element Approach
    IOP Publishing ; 2023
    In:  IOP Conference Series: Earth and Environmental Science Vol. 1244, No. 1 ( 2023-09-01), p. 012014-
    Details
    In: IOP Conference Series: Earth and Environmental Science, IOP Publishing, Vol. 1244, No. 1 ( 2023-09-01), p. 012014-
    Abstract: Concrete buildings with modular systems are still not widely used for high-rise buildings. One of the main reasons is the lack of knowledge regarding the structural design of concrete modular buildings. In Indonesia itself, there are not even many concrete modular buildings because the majority of the area is surrounded by earthquake zones. This study aims to develop a frame analysis method using a section designer for structural analysis of concrete modular buildings. The function of using frame elements is to simplify the calculations that should be modelled with shell elements in order to ensure that the connection between segments occurred only vertically. The analysis was carried out for an 8-storey apartment modular building composed of 4 module segments (M-24A, M-24B, M-36A and M-36B). Seismic analysis was carried out using the parameters of the city of Kutai with S ds = 0.27 and S d1 = 0.3. All module segments are capable of enduring the maximum moment caused by seismic loading. The M-36B segment has a maximum moment capacity of 62,318.73 kNm and can withstand an ultimate moment of 2,227.55 kNm. The combined effect of the earthquake due to the response spectrum created maximum building story drift of 0.11% does not exceed the required limit of 2%.
    Type of Medium: Online Resource
    ISSN: 1755-1307 , 1755-1315
    URL: Article
    DOI: 10.1088/1755-1315/1244/1/012014
    Language: Unknown
    Publisher: IOP Publishing
    Publication Date: 2023
    detail.hit.zdb_id: 2434538-6
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  • 6
    Online Resource
    Online Resource
    The use of Golden snail (Pomacea canaliculata) egg as source of carotenoid for improvement of Arabic Chicken egg quality
    IOP Publishing ; 2020
    In:  IOP Conference Series: Earth and Environmental Science Vol. 411, No. 1 ( 2020-01-01), p. 012038-
    Details
    In: IOP Conference Series: Earth and Environmental Science, IOP Publishing, Vol. 411, No. 1 ( 2020-01-01), p. 012038-
    Abstract: Consumers awareness of the usage of natural product is increasing but exploration of natural carotenoid originated from animal was conducted into a lesser extent. The objective of this study was to examine the use of Golden snail egg powder (GESP) for improvement of quality of Arabic chicken egg. Thirty six Arabic chicken (silver and golden chicken, 22 weeks of age, 1,123.9 ± 155.1 g initial body weight) were assigned in completely randomized design (CRD), consisting of 4 dietary treatments (R0 = control 0%; R1 = 4%; R2 = 8%; and R3 = 12% level of GESP) and 3 replications. Data were analysed using one way ANOVA with homogeneity and normality tested in advance. After one month of experiment, data showed that up to 12%, yolk carotenoid and yolk score significantly increased in line with dietary GESP level. However Haugh unit and yolk indices were not affected by GESP. This result indicates that Golden snail egg can be used as carotenoid for improvement of chicken egg quality.
    Type of Medium: Online Resource
    ISSN: 1755-1307 , 1755-1315
    URL: Article
    DOI: 10.1088/1755-1315/411/1/012038
    Language: Unknown
    Publisher: IOP Publishing
    Publication Date: 2020
    detail.hit.zdb_id: 2434538-6
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  • 7
    Online Resource
    Online Resource
    The potential solvent for tannin extraction as a feed additive made of coffee husk (Coffea canephora) using Soxhlet Method
    IOP Publishing ; 2022
    In:  IOP Conference Series: Earth and Environmental Science Vol. 980, No. 1 ( 2022-02-01), p. 012024-
    Details
    In: IOP Conference Series: Earth and Environmental Science, IOP Publishing, Vol. 980, No. 1 ( 2022-02-01), p. 012024-
    Abstract: The purpose of this research was to determine the best of solvent for extracting tannins as a feed additive from coffee husks using the soxhlet method. The method used was quantitative with a completely randomized design experimental. The coffee husk used was a type of Robusta taken from the Kaliwates Region, Jember Regency, Indonesia. The material was the waste from the grinding of coffee cherries, namely the pericarp (parchment, pectin layer, pulp, and outer husk). This research consisted of 3 treatments (P1: Methanol, P2: Ethanol, P3: Acetone), each treatment consisted of 3 replications. The variables were the tannin extracts and residue of tannin extracts. The results showed that different types of tannin solvents had a significant effect on the tannin extracts yield and residue of tannin extracts (P 〈 0.05). Methanol and ethanol solvents produced higher tannin than acetone solvents: 0.5392%, 0.6120%, and 0.2457% respectively. Coffee husk with ethanol solvent gave the least residue compared to methanol and acetone: 61.64%, 66.89%, and 85.26% respectively. The conclusion of this research was Ethanol is a solvent that produces the highest total tannin (0.6120%) and the lowest residue (61.64 ± 0.6688%) from coffee husks compared to methanol and acetone. The result of this research can be used as a consideration for the tannins extraction of other plantation waste.
    Type of Medium: Online Resource
    ISSN: 1755-1307 , 1755-1315
    URL: Article
    DOI: 10.1088/1755-1315/980/1/012024
    Language: Unknown
    Publisher: IOP Publishing
    Publication Date: 2022
    detail.hit.zdb_id: 2434538-6
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  • 8
    Online Resource
    Online Resource
    RISBARI: an alternative house model for the 2018 Lombok earthquake affected people
    IOP Publishing ; 2020
    In:  IOP Conference Series: Materials Science and Engineering Vol. 849, No. 1 ( 2020-05-01), p. 012069-
    Details
    In: IOP Conference Series: Materials Science and Engineering, IOP Publishing, Vol. 849, No. 1 ( 2020-05-01), p. 012069-
    Abstract: Right after the 2018 Lombok earthquake, a huge number of housings were considered to be rebuilt or partially repaired. Out of more than 216,519 damaged houses, around 75,138 houses have to be demolished and rebuilt at the same location. This construction process is required to carry out immediately as majority of affected dwellers are now living at temporary shelters with very limited privacy. A house model made from cold formed steel structure, RISBARI, was proposed. RISBARI was developed to meet two essential criteria: fast erection process and construction budget constraints. A full scale test of RISBARI was conducted to evaluate its lateral strength capacity. This paper summarize the earthquake-resistant RISBARI house as well as the planning of its implementation in massive production through 5Ms principles.
    Type of Medium: Online Resource
    ISSN: 1757-8981 , 1757-899X
    URL: Article
    DOI: 10.1088/1757-899X/849/1/012069
    Language: Unknown
    Publisher: IOP Publishing
    Publication Date: 2020
    detail.hit.zdb_id: 2506501-4
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  • 9
    Online Resource
    Online Resource
    Gastrointestinal Parasites of Sheep in Jember District (East Java – Indonesia)
    IOP Publishing ; 2020
    In:  IOP Conference Series: Earth and Environmental Science Vol. 411, No. 1 ( 2020-01-01), p. 012025-
    Details
    In: IOP Conference Series: Earth and Environmental Science, IOP Publishing, Vol. 411, No. 1 ( 2020-01-01), p. 012025-
    Abstract: Sheep is a ruminant livestock that has the most population in Indonesia and the highest distribution of maintenance in rural areas. Increasing livestock production, controlling factors and preventing diseases including parasites need attention, especially from the gastrointestinal parasite group. This study aims to identify the diversity of gastrointestinal parasites in sheep in Jember district. This research was conducted by randomly collecting 175 sheep faecal samples from various regions in Jember district. Identification of gastrointestinal parasite diversity by examining worm eggs in sheep faecal samples using sedimentation methods carried out at BBVet Wates (Veterinary Center). Based on the results of sheep feces examination in Jember, 84 samples (48,0%) were examined were infected with one or more gastrointestinal helminth parasites and (52,0%) obtained negative results. Gastrointestinal helminth parasites were found from the Trematode class: Paramphistomum sp., Cestode class: Moniezia sp., and nematode class consisting of Ostertagia sp., Trichostrongylus sp., Cooperia sp., Capillaria sp., Bunostomum sp., Strongyloides sp., Oesophagostomum sp., Trichuris sp., and Toxocara sp. with 56 samples were infected with at least one species and 28 samples were infected with two or more species of gastrointestinal helminth parasites which is useful information for future medication.
    Type of Medium: Online Resource
    ISSN: 1755-1307 , 1755-1315
    URL: Article
    DOI: 10.1088/1755-1315/411/1/012025
    Language: Unknown
    Publisher: IOP Publishing
    Publication Date: 2020
    detail.hit.zdb_id: 2434538-6
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  • 10
    Online Resource
    Online Resource
    EFFECT OF PROBIOTICS IN WATER QUALITY MANAGEMENT OF KOI FISH (CYPRINUS CARPIO) INFECTED WITH MYXOBOLUS SP.
    Russian Journal of Agricultural and Socio-Economic Sciences ; 2021
    In:  Russian Journal of Agricultural and Socio-Economic Sciences Vol. 120, No. 12 ( 2021-12-28), p. 228-236
    Details
    In: Russian Journal of Agricultural and Socio-Economic Sciences, Russian Journal of Agricultural and Socio-Economic Sciences, Vol. 120, No. 12 ( 2021-12-28), p. 228-236
    Type of Medium: Online Resource
    ISSN: 2226-1184
    URL: Issue
    URL: Journal
    URL: Article
    DOI: 10.18551/rjoas.2021-12
    DOI: 10.18551/rjoas
    DOI: 10.18551/rjoas.2021-12.25
    Language: Unknown
    Publisher: Russian Journal of Agricultural and Socio-Economic Sciences
    Publication Date: 2021
    detail.hit.zdb_id: 2660290-8
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