Performance assessment of a railway turnout geotextile

1986 ◽  
Vol 23 (4) ◽  
pp. 472-480 ◽  
Author(s):  
Gerald P. Raymond

Many railways have been making increasing use of the heavier mass per unit area geotextiles, bringing into question the financial viability of their use. In order to assess the viability of turnout geotextiles, two closely spaced turnouts, positioned on an embankment constructed of compacted clay at Rosser, near Winnipeg, were rehabilitated in September 1981. Under one turnout, a Turn Out Pack System (TOPS) geotextile of variable mass per unit area (550–1100 g/m2 (16–32 oz/yd2)) was used; with the other, no geotextile was used. The ballast was a metamorphic granodioritic gneiss known locally as Kenora granite. This article summarizes the findings of excavations made to assess the performance of the geotextile. The assessment excavations were made in August 1984 after an average of 13.6 × 106 gross tonnes (15 × 106 gross tons) per year per track of traffic. The results clearly show the damage penalty to the ballast from fouling caused at the nongeotextile locations. Key words: railways, ballast, subballast, geotextile, fouling, pumping, fines, equivalent opening size (EOS).

Author(s):  
Taras Mylian

Territory of the upper reaches of Western Bug River, especially the annalistic of Belz in Solokiya and its surroundings, is rich in archeological sites. In 2016, as part of the Program «Protection and Preservation of the Cultural Heritage of the Lviv Region for 2016–2018», conservation research was conducted at the settlement Belz 22 (Hora). It is a multi-layered settlement with cultural and chronological horizons from the final Paleolithic to modern times. Information and research on it were conducted with advantages during XX century however, for the first time in the settlement; remains of a Slavic dwelling-semi-dugout (object 20) of the Prague culture were discovered and studied. Research has shown that dwelling had two periods of functioning. Traces of restructuring were confirmed, which led to a reduction of the area and changing of the shape – from rectangular to square. Evidence of the reconstruction was the remains of two clay ovens, the oldest of which was partially cut down by a later wall. Under the remains of this wall above the furnace a Roman denarius of the II century was found. Ovens are built on special sites made of compacted clay. The older oven has a dome lined with special rollers. Discovered material is represented mainly by handmade ceramic pots, some of them are reconstructed. Some of the forms of utensils were common during the late V – early VI centuries, and the other part – during the second half of VI – early VII century. This division corresponded to the periods of housing. An important find was the weights for the loom, which were reused to build the oven. An additional evidence of the development of weaving in the settlement is a bi-conical spinner with flat platforms, which comes from dwelling. The settlement on the outskirts of the annalistic Belz is characterized by permanence and genetic connection throughout the Middle Ages – from individual Slavic settlements in this region to the creation of a separate principality around the big city. Key words: Prague culture, Belz, Solokiya, dwelling, oven, ceramics, denarius.


1992 ◽  
Vol 70 (10) ◽  
pp. 1940-1944 ◽  
Author(s):  
Susan G. Aiken ◽  
George Fedak

The presence of B chromosomes is reported in Festuca altaica Trin., where a plant with relatively wide and often flat leaves had a chromosome number of 2n = 4x = 28; an adjacent plant, with conspicuously narrow and tightly rolled leaves, had 2n = 4x = 28 + 2B chromosomes. A first chromosome count of 2n = 42 is reported for Festuca rubra L. ssp. densiuscula (Hackel) Piper, along with observations on the nomenclature and morphology of this west coast subspecies. A first chromosome count for a North American plant of Festuca brevissima Jurtzev is 2n = 14. Collections made in northern Yukon were compared with the type borrowed from Leningrad and with the distribution of this species relative to the other North American diploid Festuca, Festuca aggr. auriculata Drob. A collection of Festuca brachyphylla Schultes from northern Yukon had a chromosome number of 2n = 42, and unusual morphology and phenology were interpreted as the result of a snow patch habitat. A second record for Festuca dasyclada Hackel ex. Beal of a chromosome number of 2n = 28 and justifications for keeping this species in Festuca are presented. Key words: Poaceae, North American, Festuca, chromosomes, morphology, nomenclature.


2015 ◽  
Vol 4 (1) ◽  
Author(s):  
Fitri Palupi Kusumawati

The objectives of this research are to find out the kinds of students’ morphological error in writing recount text and to find out the difficulties faced by the student in writing recount text. This research is a descriptive qualitative. It means this study focused to describe and analyze the students’ error. Based on the result that mentioned previously, the researcher found that the number of students’ omission and misformation errors are high. The highest students’ errors made in misformation are about 51, 19 %.  Most of the students used wrong form of morphological in their writing. The second is the students errors made in omission are around 32, 74 %.The students not adding bound morpheme, they omit the necessary item in their sentences. The third, the students made errors in addition and misordering are about 13, 69 % and 2, 38 %. The students add unnecessary item and put incorrect placement of morpheme in their writing. On the other hand, according to table 4.2 the researcher conclude that the number of error is five or 31, 25 % students made error in global error and 11or 68, 75 % students made in local error. Key Words: Morphological errors, students’ writing


2006 ◽  
Vol 56 (1) ◽  
pp. 1-43
Author(s):  
Sándor Richter

The order and modalities of cross-member state redistribution as well as the net financial position of the member states are one of the most widely discussed aspects of European integration. The paper addresses selected issues in the current debate on the EU budget for the period 2007 to 2013 and introduces four scenarios. The first is identical to the European Commission's proposal; the second is based on reducing the budget to 1% of the EU's GNI, as proposed by the six net-payer countries, while maintaining the expenditure structure of the Commission's proposal. The next two scenarios represent radical reforms: one of them also features a '1% EU GNI'; however, the expenditures for providing 'EU-wide value-added' are left unchanged and it is envisaged that the requisite cuts will be made in the expenditures earmarked for cohesion. The other reform scenario is different from the former one in that the cohesion-related expenditures are left unchanged and the expenditures for providing 'EU-wide value-added' are reduced. After the comparison of the various scenarios, the allocation of transfers to the new member states in terms of the conditions prevailing in the different scenarios is analysed.


2016 ◽  
Vol 13 (2) ◽  
pp. 67
Author(s):  
Engku Liyana Zafirah Engku Mohd Suhaimi ◽  
Jamil Salleh ◽  
Suzaini Abd Ghani ◽  
Mohamad Faizul Yahya ◽  
Mohd Rozi Ahmad

An investigation on the properties of Tenun Pahang fabric performances using alternative yarns was conducted. The studies were made in order to evaluate whether the Tenun Pahang fabric could be produced economically and at the same time maintain the fabric quality. Traditional Tenun Pahang fabric uses silk for both warp and weft. For this project, two alternative yarns were used which were bamboo and modal, which were a little lower in cost compared to silk. These yarns were woven with two variations, one with the yarns as weft only while maintaining the silk warp and the other with both warp and weft using the alternative yarns. Four (4) physical testings and three (3) mechanical testings conducted on the fabric samples. The fabric samples were evaluated including weight, thickness, thread density, crease recovery angle, stiffness and drapability. The results show that modal/silk and bamboo silk fabrics are comparable in terms of stiffness and drapability, hence they have the potential to replace 100% silk Tenun Pahang.


2006 ◽  
Vol 51 (2) ◽  
pp. 52-78 ◽  
Author(s):  
Corina Caduff ◽  
Sabina Gebhardt Fink ◽  
Florian Keller ◽  
Steffen Schmidt

Intermedialität wird hier systematisch an Musik, Literatur, visuelle Kunst und Film dargestellt. Den Anfang machen allgemeine Überlegungen zu Materialität und Medium in diesen verschiedenen Künsten. Im Weiteren werden unter dem Aspekt ›Bimedialität‹ verschiedene Beispiele vorgestellt, die jeweils aus zwei Medien bestehen (z.B. Musikfilm, das Lied oder Schriftbilder). Dabei folgen wir der Frage, ob und wie jeweils eines der beiden Medien eine Vorrangstellung bekommt. Der abschließende Teil behandelt „intermediale Bezüge in Monomedialität“. Hier geht es um monomediale Darstellungen, denen aber eine Beschäftigung mit einem anderen Medium vorangegangen ist. Das ist etwa dann der Fall, wenn ein Schriftsteller über ein Bild schreibt, ohne daß dieses (im Text) zu sehen ist. In this article, we offer a systematic description of intermedia relations across music, literature, the visual arts, and film. Beginning with some general reflections on materiality and medium in these diverse fields of art, we then offer various examples consisting of two media (e.g. music film, song, images in writing). We pursue the question if, and how, one of the two media may take priority over the other. In our conclusion, we deal with „intermedia relations in monomediality“. This section focuses on artistic representations made in one medium, but based on reflections on another medium. For instance, this is the case when a novelist writes about a picture without having this picture reprinted in the text.


2020 ◽  
Vol 13 (2) ◽  
pp. 44-54
Author(s):  
Hendrico Firzandy Latupeirissa ◽  
Gierlang Bhakti Putra ◽  
Niki Prastomo

Brick debris that makes up the majority of construction waste has not received proper waste disposal in Indonesia. On the other hand, brick debris could be potentially reused as non-structural building materials to reduce its negative impact on the environment. This study aims to test the effectiveness of soundproofing on recycled brick debris. The soundproof test was carried out on brick debris in the form of fine and coarse grains. The simulation box is then used as a support for the brickwork material and then the box is exposed to a sound source with a certain level of noise that is considered disturbing human comfort. Noise level measurements are made in the outside and inside the box. These measurements are tabulated and then analyzed to see the success of the two aggregates in reducing noise. Basically, the brickwork material has succeeded in becoming a recycled building material that can absorb noise, although further research must be carried out to be able to state that this material is truly ready to be used as an alternative building material with good acoustic capabilities.


2018 ◽  
Vol 8 (4) ◽  
pp. 65-69
Author(s):  
Mao Nguyen Van ◽  
Dong Tran Nam

Background: Pigmented tumour of the skin is one of the common tumour in human including the benign pigmented tumours (more common) called Nevi tumours and the malignant one called melanoma which was less frequent but the most poor in prognosis. In addition, the others not belonging to these group had the same clinical appearance, so the application of histopathology and immunohistochemistry for the definitive diagnosis was indespensible. Objectives: 1. To describe the macroscopic features of the pigmented tumoral-like lesions; 2. To classify the histopathologic types of the pigmented cell tumours and the other pigmented tumours of the skin. Materials and Method: Cross-sectional research on 55 patients diagnosed as pigmented tumoral lesions by clinician, then all definitively diagnosed by histopathology combining the immunohistochemistry in difficult cases. Results: There was no difference in gender, the disease was discovered most common in adult, especially with the age over 51 years old (58.1%). the most region located was in the face accounting for 60%, following the trunk and limbs (14.6%, 12.8% respectively). All 3 malignant melanomas happened in foot. The most common color of the lesions was black (65.4%), the other ones were rose, grey and blue. Histopathology and immunohisthochemistry showed that the true pigmented cell tumours were 52.6% encompassing benign ones (Nevi tumour) (41.8%), melanoma (5.4%) and lentigo (5.4%). 47.4% was not the true pigmented cell tumour including pigmented basocellular carcinoma (36.4%) and the others less common as histiofibromas, acanthoma and papilloma. Conclusion: the pigmented tumoral-like lesions of the skin could be the true pigmented cell tumours and the others, so the application of the histopathology and the immunohistochemistry after the clinical discovery helps to determine and classify the disease definitely and for the best orientation of treatment as well. Key words: skin tumour, benign pigmented tumour (Nevi), malignant pigmented tumour (melanoma), pigmented basocellular carcinoma


Author(s):  
Dewi Febrianty ◽  
Risnita Risnita ◽  
Afreni Hamidah

Practical performance assessment is an important part of the learning process, but several obstacles are found in its implementation. The objectives of this study are (1) to develop constructivism-based performance assessment instruments for class VII Yunior High School in  Life Organization subject,  (2) to describe aspects that need to be made in constructivism-based practical performance assessment instruments, and (3) to describe teacher responses in using constructivism-based practical performance assessment instruments. This research is a development research using a 4D model, the stages are defining, design, development and distribution. The trial subjects in this study consisted of 10 students for small group trials and 40 students for large group trials. The indicators used in the study include aspects related to the development of constructivist life-based practicum assessment instruments. Instrument used was a questionnaire to reveal the response of teachers and students to practical performance assessment instruments. The results of the data analysis showed that the content feasibility value is 86.31% at the intervals of 48.33 which means it is feasible to use. Most students gave a positive response to the assessment sheet given (96.67%), a small portion gave a negative response (33.3%). Because the average positive response of students is more than 75%, the performance assessment instrument is considered feasible to be applied.


Author(s):  
Jane Caputi

The proposed new geological era, The Anthropocene (a.k.a. Age of Humans, Age of Man), marking human domination of the planet long called Mother Earth, is truly The Age of the Motherfucker. The ecocide of the Anthropocene is the responsibility of Man, the Western- and masculine-identified corporate, military, intellectual, and political class that masks itself as the exemplar of the civilized and the human. The word motherfucker was invented by the enslaved children of White slave masters to name their mothers’ rapist/owners. Man’s strategic motherfucking, from the personal to the planetary, is invasion, exploitation, spirit-breaking, extraction and toxic wasting of individuals, communities, and lands, for reasons of pleasure, plunder, and profit. Ecocide is attempted deicide of Mother Nature-Earth, reflecting Man’s goal to become the god he first made in his own image. The motivational word Motherfucker has a flip side, further revealing the Anthropocene as it signifies an outstanding, formidable, and inexorable force. Mother Nature-Earth is that “Mutha’ ”—one defying translation into heteropatriarchal classifications of gender, one capable of overwhelming Man, and not the other way around. Drawing upon Indigenous and African American scholarship; ecofeminism; ecowomanism; green activism; femme, queer, and gender non-binary philosophies; literature and arts; Afrofuturism; and popular culture, Call Your “Mutha’ ” contends that the Anthropocene is not evidence of Man’s supremacy over nature, but that Mother Nature-Earth, faced with disrespect, is going away. It is imperative now to call the “Mutha’ ” by decolonizing land, bodies, and minds, ending rapism, feeding the green, renewing sustaining patterns, and affirming devotion to Mother Nature-Earth.


Sign in / Sign up

Export Citation Format

Share Document