4,099 research outputs found

    Nature versus built

    Get PDF
    Nature is made up of various living and non-living things which is related to plants, animals and other features such as mountains, deserts and seas. They are connected and some of the relationships between members are direct and obvious and ecosystem occurred to balance the amount of living things. Built environment is referring to aspects of creature human-made surroundings. Human activities caused some environmental issues and disturbance the nature. However, the technologies introduce sustainability building and creature as conservation our nature. There also some ways can be practice at house to save the environment

    Classical and weak solutions for semilinear parabolic equations with Preisach hysteresis

    Get PDF
    We consider the solvability of the semilinear parabolic differential equation ut(x,t)Δu(x,t)+c(x,t)u(x,t)=P(u)+γ(x,t)\frac{\partial u}{\partial t}(x,t)- \Delta u(x,t) + c(x,t)u(x,t) = \mathcal{P}(u) + \gamma (x,t) in a cylinder D=Ω×(0,T)D=\Omega \times (0,T), where P\mathcal{P} is a hysteresis operator of Preisach type. We show that the corresponding initial boundary value problems have unique classical solutions. We further show that using this existence and uniqueness result, one can determine the properties of the Preisach operator P\mathcal{P} from overdetermined boundary data

    Model Management for Cybernetic Decision Support Systems

    Get PDF
    Managers being human have limited information processing capacity and are subject to judgmental biases, inferential shortcomings, and ignorance of the rules for optimal information processing and decision-making. Decision aids in the form of human computer information processing systems such as decision support systems, are sometimes employed to assist and support human managers in various tasks. These decision aids unfortunately do not fulfill the requirements and expectations of managers in arriving at the desired solution. This is due to the fact that the tools provided are not suitable for the managers, as they do not put sufficient emphasis on the human aspects of decision-making. Most recent models for decision support systems presented by researchers in model management are based on Operational Research or Artificial Intelligence, and are not adequate. They are based on a simplistic question-answer environment which does not reflect the real-life situation. They also do not put enough emphasis on the intelligent, deciding and reasoning side of the model. Furthermore, the models have little capacity to learn and adapt to new environments and needs. Thus, the proposal in this thesis is for a new system called Model Manager System (MOMS) that incorporates Artificial Intelligence and a Cybernetic Approach with the actual Decision-Making Environment. In order to design the proposed decision model system, various areas are explored - such as the decision-making process, managerial behaviour, human information system, and available decision aids - where various elements related to human decision making are considered. As Cybernetic tools are used in designing the model, human aspects are emphasised greatly, especially in the Information Processing techniques such as intelligence, control, coordination, monitoring, and implementation. The designed system tries to mimic Human Information Processing wherever possible

    Treatment technologies of fresh market wastewater

    Get PDF
    Fresh Market Wastewater (FMWW) is rich with high amounts of suspended solids, organic and inorganic compounds, nutrients, gases and some elements which come from fish entrails and seafood preparation sales, meat cutting, poultry slaughtering, fruits and vegetables sales. The excess of these parameters are harmful to the aquatic life since the FMWW is usually discharged into the drainage systems without any treatment or partial treatment. The FMWW technologies are developed due to some technical factors influencing the designation and construction. There are several projects of fresh market treatment technologies used on site area in small scale which could be replicated to other fresh market, and some case study have been tested in laboratory batch experiments. All the projects exhibited an efficiency to reduce critical parameters in FMWW and give positive impacts to the locals and responsible parties

    The Potential of Utilizing the Arbuscular Mycorrhiza (AM) in the Rehabilitation of Sandy Tailings With Acacia Mangium Willd

    Get PDF
    This study examined the potential of utilising the AM fungi and an organic fertiliser in improving the plant growth and soil fertility status of sandy tailings. The AM fungal spore and Most Probable Number (MPN) count and root infection ratings were determined in barren sandy tailings and sandy tailings under a five and seven year old A. mangium stands. The results indicate very slow build up of the AM propagules over a seven year period of rehabilitation. Glomus spp. was more widely distributed as compared to Gigaspora spp. Under the propagation trials, the pot culture method using Setaria spp. as the host was found to be most suitable for production of large scale inoculum. S. calospora, an introduced species was found to be the most effective with maximum 55% infection in the A. mangium roots

    Testing the Rational Expectations Hypothesis on the Retail Trade Sector Using Survey Data from Malaysia

    Get PDF
    The rational expectations hypothesis states that when people are expecting things to happen, using the available information, the predicted outcomes usually occur. This study utilized survey data provided by the Business Expectations Survey of Limited Companies to test whether forecasts of the Malaysian retail sector, based on gross revenue and capital expenditures, are rational. The empirical evidence illustrates that the decision-makers expectations in the retail sector are biased and too optimistic in forecasting gross revenue and capital expenditures.REH, Unbiasedness, Non-serial Correlation, Weak-form Efficiency

    Gruppenhaltung ferkelführender Sauen im Ökobetrieb - Vergleich zweier unterschiedlicher Buchten

    Get PDF
    Von Februar 2004 bis März 2005 wurden zwei verschiedene Buchten zur Gruppenhaltung ferkelführender Sauen im Hinblick auf ihre Wirkung auf Produktionsleistung und Tierver-halten verglichen. Die „Kojenbucht“ wies eine Strukturierung in Einzelliegeplätze („Ko-jen“) und einen gemeinsamen Aktivitätsbereich auf. In der „Einraumbucht“ fehlte diese Unterteilung. Alle Sauen ferkelten einzeln in Bewegungsbuchten ab. Jeweils drei Sauen mit ihren Würfen wurden zusammengestallt, sobald der jüngste Wurf 10 Tage alt war. In beiden Gruppenbuchten wurden die Daten von jeweils sechs Sauengruppen erfasst. Es traten keine Unterschiede zwischen den beiden Buchtenvarianten hinsichtlich Produk-tionsleistungen und Tierverhalten auf. Im Durchschnitt wurden 11,2 Ferkel je Wurf lebend geboren. Bis zum 7. Lebenstag traten 12,4 % Ferkelverluste auf, von der Geburt bis zum 35. Lebenstag der Ferkel beliefen sich diese auf 13,2 %. Es traten keine Ferkelverluste auf, die durch die Gruppenhaltung verur-sacht worden waren. Das Geburtsgewicht lag im Schnitt bei 1579 g. Am 28. Lebenstag wogen die Ferkel 8464 g, was einer täglichen Zunahme von 246 g entspricht. Die Sauen der Kojenbucht lagen nur zu rund 60 % der Gesamtliegezeit in den Liegekojen. Das Ziel, durch das Angebot von Liegekojen die Sauen zum Liegen und Säugen zu ver-einzeln, wurde somit nicht uneingeschränkt erreicht. Pro Tag wurden in der 3. Laktati-onswoche 27,2 Säugeakte, in der 4. Laktationswoche 26,6 Säugeakte beobachtet. Die Syn-chronität der Säugeakte lag auf einem sehr hohen Niveau. Der Anteil der erfolgreichen Säugeakte mit Milchfluss lag bei 91,3 %

    Quality assurance of CT scanning for industrial applications

    Get PDF

    STRATEGI MEMPERTAHANKAN LOYALITAS PELANGGAN PADA KANTOR PRUDENTIAL CABANG BANDA ACEH

    Get PDF
    BAB V PENUTUP Perkembangan PT. Prudential Life Assurance selama 5 tahun terakhir ini memberikan banyak prestasi di antaranya Digital Brand Of The Year 2015 untuk kategori unit link, Top Brand Awards, Call Center Awards, dan lain-lain. Strategi yang dilakukan PT. Prudential cukup berhasil dengan pendapatan premi atau laba yang meningkat setiap tahunnya. Adapun beberapa strategi yang di gunakan oleh PT. Prudential Life Assurance dalam mempertahankan loyalitas pelanggan yaitu sebagai berikut: 1. Memberikan informasi kinerja perusahaan yang terus di laporkan kepada pelanggan dan publik guna mengetahui kegiatan perusahaan. 2. Kemajuan teknologi informasi yang di manfaatkan oleh PT. Prudential Life Assurance sebagai langkah yang lebih maju agar pelanggan tidak harus ke kantor untuk mencek, cukup dengan mengakses internet atau membuka web Prudential, pelanggan bisa mendapatkan informasi yang dibutuhkan. 3. Komunikasi yang terus dilakukan oleh agen kepada pelanggan guna membina hubungan baik jangka panjang. Di dalam dunia bisnis ini, setiap pelaku bisnis harus mampu menjaga dan mempertahankan kelangsungan hidup perusahaannya agar bisnis mereka dapat bersaing kompetitif di domestik maupun di luar negeri. Agar perusahaan mampu bersaing dengan perusahaan lain serta mendapatkan keuntungan (profitabilitas) yang kompetitif pula, pelaku bisnis harus dapat melakukan berbagai cara untuk mendapatkan pelanggan (customer) potensial yang baru serta mampu mempertahankan supaya pelanggan tetap loyal pada perusahaan dengan tidak melupakan etika bisnis. Karena dengan adanya etika bisnis yang dimiliki setiap pelaku bisnis, mampu menciptakan persaingan yang sehat dalam dunia bisnis. 5.2 Saran dan Rekomendasi Berdasarkan kesimpulan di atas, maka saran dan rekomendasi. ? Jangan cepat berpuas diri dengan apa yang sudah dicapai saat ini, Prudential Indonesia hendaknya tetap peka terhadap perkembangan dan perubahan kebutuhan konsumen. ? Tetap mempertahankan kualitas tenaga penjualan yang prima karena merekalah ujung tombak keberhasilan perusahaan

    The effectiveness of palm oil fuel ash (POFA) to resist chloride ion in concrete

    Get PDF
    In nowadays construction, the demand for high performance and high durability of concrete is highly required to be used in reinforced concrete structure. The use of new material to product concrete with good quality has encouraged this study to be conducted. Corrosion of reinforcement is one of the most crucial problems for most of reinforced concrete structure because the corrosion can reduce the strength of the structure. A new by-product from palm oil mill that is POFA is used in this scope of study. POFA was found as pozzolanic material which is can replace cement in concrete production. The pozzolanic reaction that occurs can help to strengthen the concrete and enhance the concrete durability. In this study, cement has been replaced with 10%, 20% and 30% of POFA as cement replacement material. Specimens have been tested to measure the effect of POFA toward compressive strength test, impressive voltage test, half-cell test and acid soluble test. From the result of the laboratory testing, it is prove that concrete with 20% of replacement of POFA is the best composition from all the four compositions. In matter of strength, corrosion resistance and chloride diffusion, the results show that composition of 20% of POFA was produced the best result while compare to the control sample give the lowest result. As conclusion, POFA can be used as cement replacement which can produce good durability to the concrete with better corrosion resistance due to lower the penetration of ion chloride and slow the rate of corrosion inside the concrete
    corecore