scholarly journals Possibility of Monitoring of Movement on Cracks for Solid Rocks

2021 ◽  
Vol 906 (1) ◽  
pp. 012025
Author(s):  
David Neuman ◽  
Shuran Yang ◽  
Erik Sombathy
Keyword(s):  
Slope Deformation ◽  
Point System ◽  
Rock Masses ◽  
Slide Mass ◽  
Surrounding Environment ◽  
Direction Of Movement ◽  
Tension Cracks

Abstract The main goal of this article is to analyze the possibility of measuring on cracks. For measuring the distance between points, e.g. crackmeters are used. When measuring cracks in rock masses, very precise instruments are used, which are referred to as dilatometers. These dilatometers are based on a mechanical or electrical principle and measure directly inside the fracture, as opposed to a crackmeter where we measure on both outer sides of the fracture. Measuring on cracks is one of the methods of evaluating the development of slope deformation on the surface. If cracks appear on the slope, we can use the crackmeter to start more frequent and accurate control of the slump movement by measuring the relative changes in position using appropriately selected stabilized points on opposite sides of the crack. If we know the direction of movement, we can use only two points to check debonding cracks. If we are measuring marginal cracks, a three-point system is appropriate. Two points are placed outside the landslide and one is placed directly on the landslide. The principle of the measurement consists in evaluating the change in distance of two points (short anchors) firmly connected to the surrounding environment and located in the simplest case on opposite sides of the crack. Crackmeters are also used to measure movements across open tension cracks and scarps delimiting the boundary of the potential slide mass.

Rock-slope deformation at Affliction Creek, southern Coast Mountains, British Columbia

1990 ◽  
Vol 27 (2) ◽  
pp. 243-254 ◽  
Author(s):  
Michael J. Bovis
Keyword(s):  
British Columbia ◽  
Rock Slope ◽  
Structural Data ◽  
Slope Deformation ◽  
Southern Coast ◽  
Near Surface ◽  
Coast Mountains ◽  
Volcanic Material ◽  
Flexural Toppling ◽  
Tension Cracks

A 7 year record of rock-slope deformation is reported from Affliction Creek, in the southern Coast Mountains of British Columbia. An estimated 3 × 107 m3 of monzonite basement and overlying Garibaldi-aged volcanic material is involved in a slow gravitational movement. Ground-motion vectors suggest that movement has occurred along a deep-seated shear zone and was accompanied by a downslope extension of the moving mass. Near-surface flexural toppling, producing antislope scarps, has taken place where tension cracks crop out on steep slopes or wherever rock faces with strong planar jointing are glacially undercut. Structural data indicate the feasibility of both sliding and toppling at this site.The stratigraphic evidence indicates that most of the tension cracks, grabens, and antislope scarps constituting the slope-movement complex are less than 4300 years old and that many of these landforms may have developed quite recently, as a result of rock-slope debuttressing during the retreat of Affliction Glacier from its late- Neoglacial maximum. Significant variations in the rate of instrumented movements over the 7 year period are not readily accounted for by variations in the level of seismic activity and may be driven by groundwater fluctuations.

The Clinical Usefulness of the Platelet Aggregation Test for the Diagnosis of Heparin-Induced Thrombocytopenia

1993 ◽  
Vol 69 (04) ◽  
pp. 344-350 ◽  
Author(s):  
B H Chong ◽  
J Burgess ◽  
F Ismail
Keyword(s):  
Platelet Aggregation ◽  
Heparin Therapy ◽  
Serotonin Release ◽  
Point System ◽  
Control Groups ◽  
Heparin Induced Thrombocytopenia ◽  
Heparin Concentration ◽  
Release Test ◽  
The Mean ◽  
Normal Controls

SummaryThe platelet aggregation test is widely used for the diagnosis of heparin-induced thrombocytopenia (HIT), a potentially serious complication of heparin therapy. We have evaluated its sensitivity and specificity in comparison with those of the 14C-serotonin release test. The sensitivity of the platelet aggregation test was found to vary with the heparin concentration and the donor of the platelets used in the test. The optimal heparin concentrations were between 0.1 and 1.0 U/ml. Using these heparin concentrations, the mean sensitivity varied from 39% (with the least reactive platelets) to 81% (with the most reactive platelets). In comparison, the sensitivity of the release test ranged from 65% to 94%. The specificities of the platelet aggregation test were 82%, 90% and 100% for the following control groups: (1) non-thrombocytopenic patients given heparin, (2) patients with thrombocytopenia due to other causes, and (3) normal controls not given heparin, respectively. The corresponding specificities for the release test was 94%, 90% and 100%. The specificities can be further increased to 100% for all controls with the adoption of a two-point system which defines a positive result as one in which platelet aggregation occurs with a low heparin concentration (0.5 U/ml) but not with 100 U heparin/ml. For optimal results, a two-point platelet aggregation test should be performed with heparin concentrations of 0.5 and 100 U/ml and using platelets of more reactive donors.

PROSPEK USAHA INOVASI SPEAKER DAN PAJANGAN UNIK UPAYA PEMANFAATAN LIMBAH GULUNGAN KERTAS

2019 ◽  
Vol 2 (2) ◽  
pp. 171
Author(s):  
Saputri Rizki Ramadhanti ◽  
Joti Dina Kartikasari ◽  
Alfian Muttoqim Muttoqim ◽  
Umi Farida Farida ◽  
Amanda Oktaviani Amanda
Keyword(s):  
College Students ◽  
Social Media ◽  
Economic Value ◽  
Waste Paper ◽  
Direct Selling ◽  
Paper Waste ◽  
Entrepreneurial Spirit ◽  
Surrounding Environment ◽  
Business Opportunities ◽  
New Business

The amount of paper waste, especially paper waste of yarn rolls in the socks manufactured factory and the convection industry that has not been used to get high economic value is an opportunity to open a new business, especially in the electronic and art craft product. SEPIK PANIK (Speaker of Music and Unique Display of Waste Paper Rolls) is an innovation from processing paper waste to be a unique speaker. The purposes of this program are: 1) Utilizing paper waste to get high selling value. 2) Creating handmade products from paper waste into speakers as well as unique creative display. 3) To accommodate the desire of college students who have entrepreneurial spirit and artistic creations to open new business opportunities. The method of make this SEPIK PANIK product includes 1) Making paper tube of speaker and 2) Making a Unique Display. The Sales of this product have been carried out during May to August 2019, products that have been sold are 34 units, obtained a profit of Rp. 1.170,000. Sales and promotion methods are carried out both online through social media and offline, namely direct selling and consignment. Based on these results, this business is very profitable and can benefit the surrounding environment.

Kegiatan pembelajaran sebagai upaya dalam menstimulus perkembangan sosial-emosional anak usia dini

2020 ◽  
Vol 3 (1) ◽  
pp. 43-57
Author(s):  
Aghnaita Aghnaita ◽  
Ajeng Almira Salsabila ◽  
Camelia Hanik ◽  
Maulida Syafitri ◽  
Norhayani Norhayani ◽  
...  
Keyword(s):  
Early Childhood ◽  
Social Development ◽  
Emotional Development ◽  
Learning Activities ◽  
Primary Data ◽  
Social Emotional ◽  
Cultural Backgrounds ◽  
Childhood Education ◽  
Surrounding Environment ◽  
Stimulation Of

This study aims to determine the emotional social development of early childhood in Integrated Early Childhood Education Tarbiyatul Athfal UIN Antasari Banjarmasin as well as the form of learning activities undertaken as an effort to stimulate the emotional social development. The research method used is qualitative research on 6 children and learning activities that can stimulate children's emotional emotional development as primary data. Based on research conducted, the results obtained that the child's emotional social development tends to be unstable. Children often prefer to play alone. Nevertheless, children also begin to show interest in hanging out in the surrounding environment and doing play activities together. In addition, there are several factors influence, such as: social emotional experiences of children, gender differences, differences in family and cultural backgrounds, and parenting. While the form of learning activities that are pursued in the form of stimulation of children's emotional social development include: routine activities of reading Asmaul Husna and short surahs, filling in journals, playing indoor, and conducting learning activities. The activity was carried out through exemplary methods, sharing learning, and collaborative games.

PENGEMBANGAN BAHAN AJAR TEKS DRAMA BERDASARKAN PENGALAMAN PENGARANG

2019 ◽  
Vol 8 (2) ◽  
Author(s):  
Didin Khaerudin ◽  
Suherli Kusmana ◽  
Iyay Robia Khaerudin
Keyword(s):  
Personal Experience ◽  
Teaching Materials ◽  
Learning Skills ◽  
Student Activities ◽  
Development Method ◽  
Average Value ◽  
Surrounding Environment ◽  
Basic Competencies ◽  
Materials Used ◽  
Minimum Criteria

Research conducted to develop drama text teaching materials based on the experience of the author of the drama script aims to make it easier for students to understand drama text material. In addition, based on the author's experience students are expected to emulate the author's creative process in writing a paper. The research method used in this research is the research and development method. Based on the results of the interview it can be concluded that the ability to write drama is determined based on mastery of the elements of drama and the ability to develop stories based on the author's experience. The process of writing drama is done in several steps: (1) searching for ideas based on personal experience, other people, or the surrounding environment; (2) processing ideas to find plots (characters), characters or characters that vary with their inner conflicts, settings and dialogues, interesting conflicts, and messages to be conveyed; (3) starts the process of writing drama with stages and elements of drama; (4) revision of drama products. Teaching material developed is presented from basic competencies of knowledge and basic competencies of learning skills. Based on experiments on developed teaching materials it is known that the average value of the ability to write plays gets a score exceeding the minimum criteria, so that the teaching materials used are effective. Based on observations it is known that teaching materials can help students in learning and student activities become more independent, and active.

VIDEO MESSAGE CODING ALGORITHMS BASED ON A GROUND-POINT SYSTEM WITH A WEIGHT-AVERAGE CENTER

2011 ◽  
Vol 70 (16) ◽  
pp. 1489-1499
Author(s):  
O. V. Moiseev ◽  
E. V. Belyakov ◽  
A. V. Yakovlev
Keyword(s):  
Point System ◽  
Ground Point

Spatiotemporal Changes of Riverbed and Surrounding Environment in Yongding River (Beijing section) in the Past 40 Years

2020 ◽  
Vol 64 (4) ◽  
pp. 40407-1-40407-13 ◽  
Author(s):  
Ran Pang ◽  
He Huang ◽  
Tri Dev Acharya
Keyword(s):  
Economic Development ◽  
Water Conservation ◽  
Human Activities ◽  
Urban Areas ◽  
Water Volume ◽  
Cropland Area ◽  
The Past ◽  
Surrounding Environment ◽  
Spatiotemporal Changes ◽  
Yongding River

Abstract Yongding River is one of the five major river systems in Beijing. It is located to the west of Beijing. It has influenced culture along its basin. The river supports both rural and urban areas. Furthermore, it influences economic development, water conservation, and the natural environment. However, during the past few decades, due to the combined effect of increasing population and economic activities, a series of changes have led to problems such as the reduction in water volume and the exposure of the riverbed. In this study, remote sensing images were used to derive land cover maps and compare spatiotemporal changes during the past 40 years. As a result, the following data were found: forest changed least; cropland area increased to a large extent; bareland area was reduced by a maximum of 63%; surface water area in the study area was lower from 1989 to 1999 because of the excessive use of water in human activities, but it increased by 92% from 2010 to 2018 as awareness about protecting the environment arose; there was a small increase in the built-up area, but this was more planned. These results reveal that water conservancy construction, agroforestry activities, and increasing urbanization have a great impact on the surrounding environment of the Yongding River (Beijing section). This study discusses in detail how the current situation can be attributed to of human activities, policies, economic development, and ecological conservation Furthermore, it suggests improvement by strengthening the governance of the riverbed and the riverside. These results and discussion can be a reference and provide decision support for the management of southwest Beijing or similar river basins in peri-urban areas.

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