scholarly journals Analisis Kekuatan Sambungan Tiang Pancang Beton Terhadap Gaya Tarik, Lateral, Dan Momen Pada Tanah Kohesif

2021 ◽  
Vol 4 (3) ◽  
pp. 607
Author(s):  
Kevin Trianto Chiarli ◽  
Alfred Jonathan Susilo

With the growth of occupation and technological developments, the shape of the building has also changed over time. Changes in the shape of the building bring the need for strength to certain styles and changing moments. Therefore, the foundation as the lower part of the structure as well as the support for the building must be able to withstand the forces that occur. Precast pile foundation is one type of deep foundation that is commonly used today. However, because the foundation is casted outside the field, there is a length limit on the foundation due to transportation, and so on. The foundation connection is a means of unifying precast piles to achieve the desired piling depth. Planning of pile foundation joints is necessary because some types of joints have a reduction in strength that allows failure of the foundation structure. The selection of the right type of connection can result in an efficiency of the needs at a cost. Therefore, the step of determining the type of precast pile connection should be emphasized more to the project development parties. Dengan adanya pertumbuhan pendudukan dan perkembangan teknologi, bentuk bangunan dari waktu ke waktu juga mengikuti perubahan yang terjadi. Perubahan bentuk bangunan tersebut membawa kebutuhan kekuatan terhadap gaya dan momen tertentu berubah. Maka dari itu, fondasi sebagai struktur bagian bawah sekaligus penopang bangunan harus mampu menahan gaya-gaya yang terjadi. Fondasi tiang pancang pracetak merupakan salah satu jenis fondasi dalam yang umum digunakan sekarang ini. Namun, dikarenakan fondasi cetak terlebih dahulu di luar lapangan, terdapat batasan panjang pada fondasi tersebut akibat dari segi transportasi, dan sebagainya. Sambungan fondasi merupakan sarana pemersatu tiang pancang pracetak untuk mencapai kedalaman pemancangan yang diinginkan. Perencanaan sambungan fondasi tiang pancang diperlukan karena beberapa jenis sambungan memiliki reduksi kekuatan yang memungkinkan terjadinya kegagalan pada struktur fondasi. Pemilihan jenis sambungan yang tepat dapat menghasilkan suatu efisiensi terhadap kebutuhan dengan biaya yang dikeluarkan. Maka dari itu, langkah penentuan pemilihan jenis sambungan tiang pancang pracetak harus lebih ditekankan kepada para pihak pembangunan proyek.

1994 ◽  
Vol 23 (487) ◽  
Author(s):  
Henrik Hautop Lund

We review different techniques for improving GA performance. By analysing the fitness landscape, a correlation measure between parents and offspring can be provided, and we can estimate effectively which genetic operator to use in the GA for a given fitness landscape. The response to selection equation further tells us how well the GA will do, and combining the two approaches gives us a powerful tool to automatically ensure the selection of the right parameter settings for a given problem. In dynamic environments the fitness landscape changes over time, and the evolved systems should be able to adapt to such changes. By introducing evolvable mutation rates and evolvable fitness formulae, we obtain such systems. The systems are shown to be able to adapt to both internal and external constraints and changes.


2019 ◽  
Vol 4 (1) ◽  
pp. 28-38
Author(s):  
Sri Tita Faulina

Abstrak Dalam Perkembangan teknologi saat ini kehadiran komputer sebagai pengolah data dalam masa sekarang ini banyak membawa perubahan, baik dalam dunia pendidikan, usaha, instansi-instansi pemerintah, maupun swasta. SMA Trisakti Baturaja belum menggunakan aplikasi khusus dalam pengolahan data jadwal pelajaran. Penelitian ini dilakukan untuk mempelajari, menganalisis dan merancang masalah yang berkaitan dengan pemilihan strategi yang tepat untuk membangun sistem informasi pengolah jadwal pelajaran. Yang akan diterapkan di SMA Trisakti Baturaja. Pemilihan strategi ini menggunakan analisis SWOT. Analisis SWOT adalah identifikasi berbagai faktor secara sistematis untuk merumuskan strategi yang ada pada SMA Trisakti Baturaja. Berdasarkan hasil matriks Internal- Eksternal pada analisis SWOT, Dengan perancangan sistem informasi Penjadwalan Mata Pelajaran ini diharapkan agar dapat mempermudah dalam mengelola data guru, data kelas, data pengampu, data waktu, data pelajaran, dan mencetak semua laporan, sehingga SMA Trisakti Baturaja menghasilkan sistem kinerja lebih cepat, tepat dan akurat. Adapun hasil penelitian ini dapat digunakan Harapannya dengan adanya sistem informasi ini dapat membantu bagian tata usaha SMA Trisakti Baturaja dalam pengolah jadwal pelajaran. Kata kunci: Informasi,  Pengolahan Data, Sistem Informasi SWOT, Sistem   Abstract  In the current technological developments the presence of computers as data processors in the present has brought many changes, both in the world of education, business, government agencies, and the private sector. SMA Trisakti Baturaja has not yet used a special application in processing lesson schedule data. This research was conducted to study, analyze and design problems related to the selection of the right strategy to build an information system processing schedule lesson. Which will be applied at SMA Trisakti Baturaja. The selection of this strategy uses a SWOT analysis. SWOT analysis is a systematic identification of various factors to formulate existing strategies at SMA Trisakti Baturaja. Based on the results of the Internal-External matrix in the SWOT analysis, the design of this information system is expected to facilitate teacher data management, class data, supporting data, time data, lesson data, and print all reports, so that  SMA Trisakti Baturaja produces a system faster, more precise and accurate performance. The results of this study can be used. Hopefully the existence of this information system can help the administration of SMA Trisakti Baturaja in processing the schedule of lessons.Keywords—Information, Data Processing, SWOT Information Systems, Systems


2014 ◽  
Vol 919-921 ◽  
pp. 731-734
Author(s):  
Hong Yan Jiang ◽  
Gang Gang Yu

The traditional AHP in the judgment matrix is established by using 1-9 scale, this scale has transfer difference, consistency of judgment matrix and thinking is not equivalent shortcomings. The improved AHP scaling theory is used in deep foundation pit support index weight determination, the selection of foundation pit supporting is more comprehensive scientific reasonable accurate.


2018 ◽  
Vol 178 ◽  
pp. 05009
Author(s):  
Elena Amaricai

In rehabilitation medicine there is increasing need of using high quality orthoses that can provide either good stability of the joint or good correction of the postural defect. The advantages of using orthoses that are in the same time hypoallergenic, lightweight, flexible, resistant and durable over time should be considered when prescribing them in clinical practice. This study presents different types of orthoses and the necessity of proper selection of materials when choosing the best ones. We included 34 patients diagnosed with different musculoskeletal conditions (thoracic and thoraco-lumbar scoliosis, genu valgum deviation and rheumatoid arthritis) that required the use of special orthoses (thoraco-lumbar braces, knee or hand orthoses). Patients were asked to complete a questionnaire regarding the quality of the orthoses that they have been used. The following characteristics of an orthosis should be considered when choosing the right one: easily wearable, comfortable, offering good stability of a joint, high quality, lightweight, hypoallergenic and resistant.


Author(s):  
Яна Валерьевна Самиулина

В настоящей статье предпринята попытка исследовать отдельные проблемные аспекты института потерпевшего в российском уголовном процессе. В этих целях подвергнуты анализу правовые нормы, регламентирующие его процессуальный статус. Раскрываются отдельные пробелы уголовно-процессуального законодательства в сфере защиты законных прав и интересов потерпевшего. Автор акцентирует внимание на том, что совершенствование уголовно-процессуального законодательства в части расширения правомочий потерпевшего по отстаиванию своих нарушенных преступлением прав следует продолжить. На основании проведенного исследования действующего законодательства в части регламентации прав потерпевшего от преступления предлагается расширить перечень получаемых им копий постановлений, указанных в п. 13 ч. 2 ст. 42 УПК РФ. Автор предлагает включить в перечень указанной законодательной нормы право получения потерпевшим копии постановления об избрании конкретного вида меры пресечения, избранного в отношении подозреваемого (обвиняемого). Для создания действенного механизма защиты интересов потерпевших от преступления юридических лиц предлагаем ч. 9 ст. 42 УПК РФ изложить в следующей редакции: «в случае признания потерпевшим юридического лица его процессуальное право в уголовном процессе осуществляет представляющий его профессиональный адвокат». This article attempts to investigate certain problematic aspects of the institution of the victim in the Russian criminal process. For this purpose, analyzed the individual norms governing his procedural status. Separate gaps of the criminal procedure legislation in the sphere of protection of the legal rights and interests of the victim are disclosed. The author emphasizes that the improvement of the criminal procedure legislation in terms of the extension of the victim’s authority to defend his rights violated by the crime should be continued. On the basis of the study of the current legislation regarding the regulation of the rights of the victim of a crime, it is proposed to expand the list of decisions received by him, referred to in paragraph 13, part 2 of article 42 Code of Criminal Procedure. The author proposes to include in the list of the indicated legislative norm the right to receive the victim a copy of the decision on the selection of a specific type of preventive measure, selected in relation to the suspect (accused). To create an effective mechanism for protecting the interests of legal entities victims of a crime, we offer part 9 of art. 42 of the Code of Criminal Procedure of the Russian Federation shall be reworded as follows: «if a legal entity is recognized as a victim, his procedural right in criminal proceedings is exercised by the professional lawyer representing him».


Toxins ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 158
Author(s):  
Colin Eady

For 30 years, forage ryegrass breeding has known that the germplasm may contain a maternally inherited symbiotic Epichloë endophyte. These endophytes produce a suite of secondary alkaloid compounds, dependent upon strain. Many produce ergot and other alkaloids, which are associated with both insect deterrence and livestock health issues. The levels of alkaloids and other endophyte characteristics are influenced by strain, host germplasm, and environmental conditions. Some strains in the right host germplasm can confer an advantage over biotic and abiotic stressors, thus acting as a maternally inherited desirable ‘trait’. Through seed production, these mutualistic endophytes do not transmit into 100% of the crop seed and are less vigorous than the grass seed itself. This causes stability and longevity issues for seed production and storage should the ‘trait’ be desired in the germplasm. This makes understanding the precise nature of the relationship vitally important to the plant breeder. These Epichloë endophytes cannot be ‘bred’ in the conventional sense, as they are asexual. Instead, the breeder may modulate endophyte characteristics through selection of host germplasm, a sort of breeding by proxy. This article explores, from a forage seed company perspective, the issues that endophyte characteristics and breeding them by proxy have on ryegrass breeding, and outlines the methods used to assess the ‘trait’, and the application of these through the breeding, production, and deployment processes. Finally, this article investigates opportunities for enhancing the utilisation of alkaloid-producing endophytes within pastures, with a focus on balancing alkaloid levels to further enhance pest deterrence and improving livestock outcomes.


2020 ◽  
pp. 1-9
Author(s):  
Daniel Bergé ◽  
Tyler A. Lesh ◽  
Jason Smucny ◽  
Cameron S. Carter

Abstract Background Previous research in resting-state functional magnetic resonance imaging (rs-fMRI) has shown a mixed pattern of disrupted thalamocortical connectivity in psychosis. The clinical meaning of these findings and their stability over time remains unclear. We aimed to study thalamocortical connectivity longitudinally over a 1-year period in participants with recent-onset psychosis. Methods To this purpose, 129 individuals with recent-onset psychosis and 87 controls were clinically evaluated and scanned using rs-fMRI. Among them, 43 patients and 40 controls were re-scanned and re-evaluated 12 months later. Functional connectivity between the thalamus and the rest of the brain was calculated using a seed to voxel approach, and then compared between groups and correlated with clinical features cross-sectionally and longitudinally. Results At baseline, participants with recent-onset psychosis showed increased connectivity (compared to controls) between the thalamus and somatosensory and temporal regions (k = 653, T = 5.712), as well as decreased connectivity between the thalamus and left cerebellum and right prefrontal cortex (PFC; k = 201, T = −4.700). Longitudinal analyses revealed increased connectivity over time in recent-onset psychosis (relative to controls) in the right middle frontal gyrus. Conclusions Our results support the concept of abnormal thalamic connectivity as a core feature in psychosis. In agreement with a non-degenerative model of illness in which functional changes occur early in development and do not deteriorate over time, no evidence of progressive deterioration of connectivity during early psychosis was observed. Indeed, regionally increased connectivity between thalamus and PFC was observed.


Molecules ◽  
2021 ◽  
Vol 26 (9) ◽  
pp. 2573
Author(s):  
Yi-Hsiu Chung ◽  
Cheng-Kun Tsai ◽  
Ching-Fang Yu ◽  
Wan-Ling Wang ◽  
Chung-Lin Yang ◽  
...  

Purpose: By taking advantage of 18F-FDG PET imaging and tissue nuclear magnetic resonance (NMR) metabolomics, we examined the dynamic metabolic alterations induced by liver irradiation in a mouse model for hepatocellular carcinoma (HCC). Methods: After orthotopic implantation with the mouse liver cancer BNL cells in the right hepatic lobe, animals were divided into two experimental groups. The first received irradiation (RT) at 15 Gy, while the second (no-RT) did not. Intergroup comparisons over time were performed, in terms of 18F-FDG PET findings, NMR metabolomics results, and the expression of genes involved in inflammation and glucose metabolism. Results: As of day one post-irradiation, mice in the RT group showed an increased 18F-FDG uptake in the right liver parenchyma compared with the no-RT group. However, the difference reached statistical significance only on the third post-irradiation day. NMR metabolomics revealed that glucose concentrations peaked on day one post-irradiation both, in the right and left lobes—the latter reflecting a bystander effect. Increased pyruvate and glutamate levels were also evident in the right liver on the third post-irradiation day. The expression levels of the glucose-6-phosphatase (G6PC) and fructose-1, 6-bisphosphatase 1 (FBP1) genes were down-regulated on the first and third post-irradiation days, respectively. Therefore, liver irradiation was associated with a metabolic shift from an impaired gluconeogenesis to an enhanced glycolysis from the first to the third post-irradiation day. Conclusion: Radiation-induced metabolic alterations in the liver parenchyma occur as early as the first post-irradiation day and show dynamic changes over time.


2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 827-827
Author(s):  
Jaime Hughes ◽  
Susan Hughes ◽  
Mina Raj ◽  
Janet Bettger

Abstract Behavior change is an inherent aspect of routine geriatric care. However, most research and clinical programs emphasis how to initiate behavior change with less emphasis placed on skills and strategies to maintain behaviors over time, including after an intervention has concluded. This presentation will provide an introduction to the symposium, including a review of prior work and our rationale for studying the critical yet overlooked construct of maintenance in older adults. Several key considerations in our work include the impact of multiple chronic conditions, declines in cognitive and functional capacity over time, changes in environmental context and/or social support, and sustainability of community and population-level programs and services.


Structures ◽  
2021 ◽  
Vol 29 ◽  
pp. 1229-1241
Author(s):  
Swagata Deb Roy ◽  
Animesh Pandey ◽  
Rajib Saha

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