2,440 research outputs found

    NUMERICAL INVESTIGATION OF THE UNDRAINED PULLOUT CAPACITY OF ANCHORS EMBEDDED IN CLAY

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    Two dimensional plane strain finite element analysis has been conducted to simulate the pullout behavior of vertical anchors of different shapes when embedded in clay. These shapes include plate anchors, anchors with irregular base shapes, and plate anchors with rectangular openings. For the first two types, the effects on the pullout behavior of embedment depth, overburden pressure, soil-anchor interface strength, anchor thickness, base shape and size, rate of clay strength increase, anchor and load inclination, point of load application and soil disturbance due to anchor installation were all studied. The anchor pullout capacity is shown to be strongly affected by embedment depth, overburden pressure, load inclination angle, rate of clay shear strength increase per depth and soil-anchor interface strength. Similarly, disturbed clay strengths adjacent to the anchor following installation were found to cause a significant reduction in the anchor capacity. The effect of other parameters, such as the anchor thickness and the load application point, were found to be less significant. Among the studied base shapes, the triangular based anchors were found to have the greatest vertical pullout resistance, while the lateral pullout was not significantly improved for any of the studied shapes. This form of anchor was also shown to be the most efficient shape in terms of cross-sectional steel area compared to the pullout capacity. Normal and inclined load vertical and horizontal plate anchors with rectangular openings were studied at different embedment depths for no-breakaway and immediate breakaway conditions. For this anchor type, the embedment depth showed a significant effect on the efficiency for fully bonded conditions, but only a negligible effect for immediate breakaway conditions. The results suggest the feasibility of this anchor type as an alternative to regular plate anchors, especially for shallow offshore conditions, where limitations on cranage capacity exist

    Optimization Algorithms in Project Scheduling

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    Scheduling, or planning in a general perspective, is the backbone of project management; thus, the successful implementation of project scheduling is a key factor to projects’ success. Due to its complexity and challenging nature, scheduling has become one of the most famous research topics within the operational research context, and it has been widely researched in practical applications within various industries, especially manufacturing, construction, and computer engineering. Accordingly, the literature is rich with many implementations of different optimization algorithms and their extensions within the project scheduling problem (PSP) analysis field. This study is intended to exhibit the general modelling of the PSP, and to survey the implementations of various optimization algorithms adopted for solving the different types of the PSP

    The accumulative effect of Finnsheep breeding in crossbreeding schemes

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    Finnsheep (F) was used in a crossbreeding project to improve overall productivity of the DLS breed. Productive and reproductive traits of seven crossbred combinations ranging from 1/8F to 7/8F breeding were compared to those of the two parental breeds. Suffolk rams were used to mate all ewes (361) for five parturitions (1312 records). Ovulation rate (OR) and litter size (LS) at birth for all the groups increased progressively as F breeding increased. The 4/8F ewes weaned the heaviest litters. Percentage of ova lost per ewe mated ranged from 18 % to 29 %. Preweaning mortality rate was highest in F ewes. Total kg of lambs weaned per ewe exposed was highest in 4/8F followed by F whereas that of DLS was lowest. The 4/8F exhibited 25 % heterosis (H) in kg of lambs weaned per ewe exposed. The linear regressions of OR (b = .24), of LS at birth (b = .14) and at weaning (b = .08) on proportion of F breeding in crosses were significant. The regressions were quadratic for percent ova lost and lamb mortality at weaning. The crosses showed positive H in grease fleece weight (GFW), the highest being expressed by the 4/8F and 5/8F crosses. Significant linear relationships were observed between F breeding and GFW (2nd shearing), fiber thickness and variability in both fiber length and fiber thickness, whereas the relationships of F breeding with GFW (3rd and later shearings), clean wool percentage and fiber length were quadratic. Most of the crosses exhibited positive H particularly in clean wool percentage and in staple and fiber length. H was often highest in the 4/8F cross. Genetic group of dam had a significant effect on age at slaughter, leg, loin and kidney fat as a percent of the carcass, lean, fat and bone percent of the 12th rib and fat thickness over loin-eye muscle. A significant linear relationship existed between most of these carcass measurements and the proportion of F breeding in the lambs’ dam

    The Influence of Implementing Quality Management Towards Purchasing Performance and Competitive Advantage Making

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    This study examined the effect of quality management practices on purchasing performance and competitive advantage. The data were collected through questionnairesconsisting of 152 manufacturing companies in West Java, by using purposive sampling method. The hypotheses were tested by using Structural Equation Modeling (SEM.)The results indicate that quality management practices in purchasing had significant influence on purchasing performance, while quality performance had also significantinfluance on competitive advantage. Another finding was that quality management practices in purchasing had significant influence on the quality performance mediated bypurchasing performance

    Penerapan Teknologi Pertanian melalui Penggunaan Alsintan pada Lahan Sawah Kepada Masyarakat Tani di Nagari Minangkabau Kec. Sungayang Kab.Tanah Datar

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    Tujuan dan target khusus yang akan dicapai pada kegiatan KKN-PPM : 1) Menggunakan alat dan mesin pertanian yang sesuai dengan kontur tanah dan kemampuan petani didalam kegiatan budidaya tanaman padi sawah, 2) Meningkatkan kapasitas kerja, dan 3) Meningkatkan hasil dan mutu pertanian. Metode kegiatan yang akan diterapkan, dilakukan melalui pendekatan pada petani untuk menumbuhkan dan meningkatkan motivasi kelompok tani. Kegiatan yang akan dilakukan :1) Pengenalan alat dan mesin pertanian khususnya untuk budidaya padi sawah, 2) Pelatihan dan demonstrasi penggunaan alat dan mesin pertanian padi sawah. Dalam kegiatan penggunaan alat dan mesin pertanian ini didahului dengan kegiatan penyuluhan dan pelatihan dilaksanakan pada tanggal 16 Juli 2016. Penyuluhan diberikan oleh narasumber tentang alat pengolahan tanah (handtraktor), penyiang, penyemprot dan perontok. Kapasitas kerja handraktor di dapatkan sekitar 0,056 Ha/jam, sedangkan pengolahan tanah dengan cara manual menggunakan cangkul adalah 0,0017 Ha/jam. Ini berarti pekerjaan pengolahan tanah lebih efektif dengan handtraktor daripada dengan cara manual yaitu 33 kali lipat dari kerja handtraktor. Penyiangan dengan menggunakan tangan untuk padi sawah didapatkan kapasitasnya 0,0277 Ha/jam. Sedangkan dengan menggunakan alat semi mekanis osrok/landak, cara ini terbilang efektif dari cara manual diatas selain lebih cepat, ramah lingkungan dan waktu yang dibutuhkan untuk menyiangi gulma lebih cepat berkisar 28-30 jam/Ha. Sehingga di dapatkan kapasitas dengan alat mekanis ini adalah sebesar 0.8033 Ha/jam. Kapasitas perontokan yang dilakukan dengan cara banting atau memukul batang padi pada papan atau susunan bambu adalah ±50 kg/jam. kapasitas mesin perontok gabah citra dragon yang digunakan dilahan sawah yaitu 750 kg/jam. Dengan demikian diharapkan terjadinya peningkatan pengetahuan dan keterampilan anggota kelompok tani Sawah Kapuak, seperti peningkatan pengetahuan dan keterampilan dalam menggunakan alat dan mesin pertanian

    Neurofibromatosis type 1 and multiple sclerosis: Genetically related diseases

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    Neurofibromatosis type I (NF1) is an autosomal dominant disorder with involvement of both the cutaneous and nervous systems. Patients are susceptible to neurological complication in the form of tumors of the brain and spinal cord. Multiple sclerosis (MS) is a chronic autoimmune disease that affects the myelinated axons in the central nervous system. Unlike MS, none of the neurological complications of NF1 is demyelinating. The association of these two diseases in the same patient is rare and could be genetically related. Early detection of the presence of MS in patients with NF1 is of utmost importance as treatment will certainly decrease further neurological disability. Here we report the first Egyptian lady with this association

    Bully Anak Artis Lesti Kejora dalam Analisis Wacana Kritis Norman Fairclough

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    This article describes Fairclough’s normative critical discourse on physical insults to children with Lesti Kejora using Norman theory. The method used in this research is descriptive qualitative method, listening method and literature study. The observation method was also applied in this study. This study also uses a note-taking approach. The survey consists of three phases: a data acquisition phase, a classification phase, and a data analysis phase. This study uses two news media, Suara.com and Herstory, based on the analysis of Fairclough's theory, bullying the child of artist Lesti Kejora. The data analysis technique used is reducing data, presenting data, and drawing conclusions. The purpose of the study was to find out how the two SH media (Suara.com and Herstory.ac.id) obtained information about the physical insults of Lesti Kejora's children. The theory used in this study is a three-dimensional model from Norman Fairclough, namely the micro, mesostructural, and macrostructural dimensions. Microstructural analysis that describes the negative and positive sides of physical abuse of children with Lesti Kejora, mesostructurally how the media obtains information related to physical abuse of children. Social situations depicting children's physical appearance as monkeys are associated with children's physical humiliation

    Analisis Wacana Kritis Sara Mills Berita Guru Mengaji di Aceh Utara Diduga Berkali-Kali Perkosa Santri Usia 15 Tahun

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    This article focuses on the discourse of feminism, which describes how the position of women is expressed in the text. The news contained explaining the incident of rape on students carried out by the Quran teacher which was alleged to have been done repeatedly, the news became the material object of this research. Discourse analysis is a qualitative approach to analysis that considers the meaning of the text. Each text, in essence, can be understood differently, in various ways. Material objects are analyzed using the Sara Mills point of view. The result of the research shows that the perspective of women shows the weak position of women. Even though the incident was indeed carried out by the perpetrator based on the victim's testimony, it has an impact on the view or image of a woman who remains bad in the eyes of the reader even though it is a woman who is a victim
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