scholarly journals Safe Foundation Criteria for Low-Rise Building Structures on Drained Coarse-Grained Steep Soil Slopes in Sri Lanka

2021 ◽  
Vol 54 (3) ◽  
pp. 99
Author(s):  
P. G. D. S. Jayawickrama ◽  
D. M. H. H. Jayawardana ◽  
M. N. C. Samarawickrama ◽  
D. I. Fernando
Keyword(s):  
Sri Lanka ◽  
Coarse Grained ◽  
Building Structures ◽  
Soil Slopes

Catch me if you can: Pathways of Dravidian influence in Sri Lanka Malay

2014 ◽  
Vol 1 (1) ◽  
Author(s):  
Sebastian Nordhoff
Keyword(s):  
Sri Lanka ◽  
Language Contact ◽  
Language Change ◽  
Relative Influence ◽  
Coarse Grained ◽  
History Of

AbstractDiscussions of the history of Sri Lanka Malay have so far tried to evaluate the development of Sri Lanka Malay with regard to the relative influence from the adstrates Sinhala and Tamil. This paper shows that such an approach is too coarse-grained and that the dialectal situation of especially Tamil has to be taken into account. After an overview of the dialectal situation we find on the island, three directions of language change are established: (1) Sinhala moves towards a general Tamil typology; (2) South Western Muslim Tamil moves towards Sinhala; and (3) Sri Lanka Malay moves towards South Western Muslim Tamil and/or Sinhala. A discussion of the problematic nature of the assumptions of “fixed targets” in language contact studies emanating from point (3) closes the paper.

Four Step Strategy for Implementing IPM in Libraries in Sri Lanka

2017 ◽  
Vol 38 (4) ◽  
pp. 383-393
Author(s):  
Udaya Prasad Cabral ◽  
Pascal Querner
Keyword(s):  
Sri Lanka ◽  
Insect Pests ◽  
Second Step ◽  
Building Structures ◽  
Conservation Treatment ◽  
Simple Strategy ◽  
Long Time ◽  
Late Treatment ◽  
Successful Control

AbstractLibraries in tropical Sri Lanka have been suffering from insect infestation for a long time. Library insect pests are observed frequently and feed on books, paper, wooden shelves or building structures and make irreversible damages to the objects. Most librarians in the country struggle with this situation and are looking for long-term solutions to protect their objects. This paper illustrates a simple strategy, which could be applied in many libraries in Sri Lanka or other countries to eradicate pests. This strategy has been composed in the light of Integrated Pest Management (IPM). It consists of four steps: “Monitoring” is a regular check, which indicates the threat to the library from pests. During the second step, “identification”, the specific pests active are detected. “Treatment” can be divided in two subcategories: “immediate treatments” focusing on nonchemical and traditional methods to eradicate pests and “late treatment” denotes conservation treatment carried out in the paper laboratory. The final step is “prevention”, which includes all activities that help blocking and repelling pests from entering the library. This paper illustrates this four-step strategy with two examples for successful control of insect and fungal outbreak and can be applied in other libraries with similar problems and a low budget.

The Alteration of the Pore Spaces in Sandstones

1973 ◽  
Vol 31 ◽  
pp. 210-211
Author(s):  
R. E. Ferrell ◽  
G. G. Paulson
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
The Other ◽  
Coarse Grained ◽  
Depositional Fabric ◽  
Soluble Components ◽  
Scanning Electron ◽  
Shape And Size

The pore spaces in sandstones are the result of the original depositional fabric and the degree of post-depositional alteration that the rock has experienced. The largest pore volumes are present in coarse-grained, well-sorted materials with high sphericity. The chief mechanisms which alter the shape and size of the pores are precipitation of cementing agents and the dissolution of soluble components. Each process may operate alone or in combination with the other, or there may be several generations of cementation and solution.The scanning electron microscope has ‘been used in this study to reveal the morphology of the pore spaces in a variety of moderate porosity, orthoquartzites.

On the Origin of the Microscystalline Structure in Rapidly Solidified IN-100 Powder

1977 ◽  
Vol 35 ◽  
pp. 260-261
Author(s):  
J. M. Walsh ◽  
K. P. Gumz ◽  
J. C. Whittles ◽  
B. H. Kear
Keyword(s):  
The Other ◽  
Coarse Grained ◽  
Microcrystalline Structure ◽  
Routine Examination ◽  
Atomization Process ◽  
Centrifugal Atomization ◽  
Splat Quenching ◽  
Powder Particles ◽  
Dendritic Microstructures ◽  
Rapidly Solidified

During a routine examination of the microstructure of rapidly solidified IN-100 powder, produced by a newly-developed centrifugal atomization process1, essentially two distinct types of microstructure were identified. When a high melt superheat is maintained during atomization, the powder particles are predominantly coarse-grained, equiaxed or columnar, with distinctly dendritic microstructures, Figs, la and 4a. On the other hand, when the melt superheat is reduced by increasing the heat flow to the disc of the rotary atomizer, the powder particles are predominantly microcrystalline in character, with typically one dendrite per grain, Figs, lb and 4b. In what follows, evidence is presented that strongly supports the view that the unusual microcrystalline structure has its origin in dendrite erosion occurring in a 'mushy zone' of dynamic solidification on the disc of the rotary atomizer.The critical observations were made on atomized material that had undergone 'splat-quenching' on previously solidified, chilled substrate particles.

Correlation between dislocation, grain boundary and interface of duplex SS in stress corrosion cracking(SCC)

1990 ◽  
Vol 48 (4) ◽  
pp. 928-929
Author(s):  
Wang Zheng-fang ◽  
Z.F. Wang
Keyword(s):  
Stainless Steel ◽  
Thermal Cycle ◽  
Secondary Phase ◽  
Corrosion Cracking ◽  
Coarse Grained ◽  
Test Environment ◽  
Fine Grained ◽  
Evaluation Test ◽  
Welding Thermal Cycle ◽  
Micro Analysis

The main purpose of this study highlights on the evaluation of chloride SCC resistance of the material,duplex stainless steel,OOCr18Ni5Mo3Si2 (18-5Mo) and its welded coarse grained zone(CGZ).18-5Mo is a dual phases (A+F) stainless steel with yield strength:512N/mm2 .The proportion of secondary Phase(A phase) accounts for 30-35% of the total with fine grained and homogeneously distributed A and F phases(Fig.1).After being welded by a specific welding thermal cycle to the material,i.e. Tmax=1350°C and t8/5=20s,microstructure may change from fine grained morphology to coarse grained morphology and from homogeneously distributed of A phase to a concentration of A phase(Fig.2).Meanwhile,the proportion of A phase reduced from 35% to 5-10°o.For this reason it is known as welded coarse grained zone(CGZ).In association with difference of microstructure between base metal and welded CGZ,so chloride SCC resistance also differ from each other.Test procedures:Constant load tensile test(CLTT) were performed for recording Esce-t curve by which corrosion cracking growth can be described, tf,fractured time,can also be recorded by the test which is taken as a electrochemical behavior and mechanical property for SCC resistance evaluation. Test environment:143°C boiling 42%MgCl2 solution is used.Besides, micro analysis were conducted with light microscopy(LM),SEM,TEM,and Auger energy spectrum(AES) so as to reveal the correlation between the data generated by the CLTT results and micro analysis.

Abstract #604: Detection of Cardiovascular Risk Factors by Anthropometric Measures in Adults Living in an Urban Setting in Sri Lanka

2015 ◽  
Vol 21 ◽  
pp. 114-115
Author(s):  
Kavinga Gunawardane ◽  
Noel Somasundaram ◽  
Neil Thalagala ◽  
Pubudu Chulasiri ◽  
Sudath Fernando
Keyword(s):  
Risk Factors ◽  
Cardiovascular Risk ◽  
Sri Lanka ◽  
Cardiovascular Risk Factors ◽  
Urban Setting ◽  
Anthropometric Measures

Prevalence of Suicidal Ideation in Sri Lanka

Crisis ◽  
2010 ◽  
Vol 31 (1) ◽  
pp. 30-35 ◽  
Author(s):  
Sudath Samaraweera ◽  
Athula Sumathipala ◽  
Sisira Siribaddana ◽  
S. Sivayogan ◽  
Dinesh Bhugra
Keyword(s):  
Suicidal Ideation ◽  
Sri Lanka ◽  
General Population ◽  
Suicide Attempts ◽  
National Average ◽  
The West ◽  
Suicide Methods ◽  
Suicide Rates ◽  
Completed Suicide ◽  
The World

Background: Suicidal ideation can often lead to suicide attempts and completed suicide. Studies have shown that Sri Lanka has one of the highest rates of suicide in the world but so far no studies have looked at prevalence of suicidal ideation in a general population in Sri Lanka. Aims: We wanted to determine the prevalence of suicidal ideation by randomly selecting six Divisional Secretariats (Dss) out of 17 in one district. This district is known to have higher than national average rates of suicide. Methods: 808 participants were interviewed using Sinhala versions of GHQ-30 and Beck’s Scale for Suicidal Ideation. Of these, 387 (48%) were males, and 421 (52%) were female. Results: On Beck’s Scale for Suicidal Ideation, 29 individuals (4%) had active suicidal ideation and 23 (3%) had passive suicidal ideation. The active suicidal ideators were young, physically ill and had higher levels of helplessness and hopelessness. Conclusions: The prevalence of suicidal ideation in Sri Lanka is lower than reported from the West and yet suicide rates are higher. Further work must explore cultural and religious factors.

Suicide on the Indian Subcontinent

Crisis ◽  
2002 ◽  
Vol 23 (3) ◽  
pp. 104-107 ◽  
Author(s):  
Murad M. Khan
Keyword(s):  
Sri Lanka ◽  
Mental Health Professionals ◽  
Indian Subcontinent ◽  
Interpersonal Relationship ◽  
Public Health Problem ◽  
Elderly Subjects ◽  
Important Public Health Problem ◽  
Policy Makers ◽  
Formidable Challenge ◽  
Causative Factors

Summary: The Indian subcontinent comprises eight countries (India, Pakistan, Bangladesh, Nepal, Sri Lanka, Afghanistan, Bhutan, and the Maldives) and a collective population of more than 1.3 billion people. 10% of the world's suicides (more than 100,000 people) take place in just three of these countries, viz. India, Sri Lanka, and Pakistan. There is very little information on suicides from the other four countries. Some differences from suicides in Western countries include the high use of organophosphate insecticides, larger numbers of married women, fewer elderly subjects, and interpersonal relationship problems and life events as important causative factors. There is need for more and better information regarding suicide in the countries of the Indian subcontinent. In particular, studies must address culture-specific risk factors associated with suicide in these countries. The prevention of this important public health problem in an area of the world with myriad socio-economic problems, meager resources, and stigmatization of mental illness poses a formidable challenge to mental health professionals, policy makers, and governments of these countries.

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