Statistical Analysis and Determination of Representative Size for Sediment in Malaysian Urban Drains

This paper highlights the statistical analysis done on sediment samples collected from concrete drains in Malaysian major urban areas in order to understand the characteristics of the sediment and also to determine the suitable representative grain size. Samples were collected from 12 urban areas in Peninsular Malaysia and 3 urban areas in East Malaysia and subjected to sieve analysis. Sieve analysis results had shown that the major component of the collected sediment samples was sand with a mean value of 72.2%, followed by gravel with a mean of 24.7% and silt and clay with a mean of 3.1%. Samples from 10 locations have shown a non normal distribution with the tenderness to skew to the right. Due to this, the conventional use of median grain size, d50 as the effective size for sediment samples might not be a good representation for the sediment distribution. Further statistical analysis in this paper have suggested that the mode grain size is a much better representative grain size due to its stability when compared to median and mean size. Thus, a much better representative for the sediment samples from Malaysian urban areas would be the mode size (in this case is d20).

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SEDIMENT DISTRIBUTION ANALYSIS IN BALOHAN BAY, SABANG

Jurnal Ilmu dan Teknologi Kelautan Tropis ◽

10.28930/jitkt.v8i2.15812 ◽

2017 ◽

Vol 8 (2) ◽

pp. 531

Author(s):

Syahrul Purnawan ◽

Tengku Putra Fajran Alamsyah ◽

Ichsan Setiawan ◽

. Rizwan ◽

Maria Ulfah ◽

...

Keyword(s):

Grain Size ◽

Size Distribution ◽

Statistical Approach ◽

Fine Sand ◽

Sieve Analysis ◽

Distribution Analysis ◽

Sediment Grain Size ◽

Sediment Distribution ◽

Sediment Properties ◽

Aceh Province

We investigated the sediment properties and distribution in Balohan Bay, which is located in southern Weh Island, Aceh Province. The aim of this research was to clarify the sediment distribution mechanism in the Balohan Bay using a statistical approach. Samples were collected on January 2016 using coring method. Sediment grain-size distribution from 14 stations was obtained using wet sieve analysis. A large amount of fine sand and very fine sand were found in Balohan Bay, as a result of several tributaries discharged in those areas. The sediment distribution in eastern stations showed an indication as a coarser size and a poorer sorted area, as they were adjacent to the steep cliff.

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SEDIMENT DISTRIBUTION ANALYSIS IN BALOHAN BAY, SABANG

Jurnal Ilmu dan Teknologi Kelautan Tropis ◽

10.29244/jitkt.v8i2.15812 ◽

2017 ◽

Vol 8 (2) ◽

pp. 531-538 ◽

Cited By ~ 2

Author(s):

Syahrul Purnawan ◽

Tengku Putra Fajran Alamsyah ◽

Ichsan Setiawan ◽

. Rizwan ◽

Maria Ulfah ◽

...

Keyword(s):

Grain Size ◽

Size Distribution ◽

Statistical Approach ◽

Fine Sand ◽

Sieve Analysis ◽

Distribution Analysis ◽

Sediment Grain Size ◽

Sediment Distribution ◽

Sediment Properties ◽

Aceh Province

We investigated the sediment properties and distribution in Balohan Bay, which is located in southern Weh Island, Aceh Province. The aim of this research was to clarify the sediment distribution mechanism in the Balohan Bay using a statistical approach. Samples were collected on January 2016 using coring method. Sediment grain-size distribution from 14 stations was obtained using wet sieve analysis. A large amount of fine sand and very fine sand were found in Balohan Bay, as a result of several tributaries discharged in those areas. The sediment distribution in eastern stations showed an indication as a coarser size and a poorer sorted area, as they were adjacent to the steep cliff.

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Kajian awal granulometri pada kawasan lamun dan terumbu karang: studi kasus di gugusan Pulau Pari, Kepulauan Seribu

DEPIK ◽

10.13170/depik.4.2.2640 ◽

2015 ◽

Vol 4 (2) ◽

Author(s):

Syahrul Purnawan

Keyword(s):

Grain Size ◽

Coral Reef ◽

Formation Process ◽

Complex Energy ◽

Sediment Distribution ◽

Sediment Samples ◽

Brief Assessment ◽

Sediment Formation ◽

Wet Sieving ◽

Skewness And Kurtosis

Abstract. Granulometric study is considered as a tool to predict sediment formation process in an aquatic environment. This paper discusses brief assessment of granulometri studies on seagrass and coral reef areas in Indonesia by collecting samples at Pari Island waters. Sediment samples were taken in May 2008 near the coral reefs and seagrass area in the cluster of Pari Island waters, Seribu Islands, Jakarta. The wet sieving method was done to separate the sediment samples based on grain size. Statistical analysis i.e., mean, sorting, skewness, and kurtosis at both locations showed a considerably complex energy works on the sediment distribution in these locations.Keywords: granulometry; sediment; coral reef; seagrass Abstrak. Studi granulometri dapat menjadi alat penduga proses terbentuknya sedimen di suatu lingkungan perairan. Tulisan ini membahas kajian ringkas studi granulometri pada kawasan lamun dan terumbu karang di Indonesia dengan mengambil contoh di perairan Pulau Pari. Sampel sedimen diambil pada Mei 2008 di kawasan terumbu karang dan lamun pada perairan gugusan Pulau Pari, Kepulauan Seribu, Jakarta. Metode ayak basah dilakukan untuk memisahkan sampel sedimen berdasarkan ukuran butir. Hasil analisis statistik ukuran butiran berupa mean, sorting, skewness, dan kurtosis pada kedua lokasi mengindikasikan fungsi energi yang cukup kompleks bekerja terhadap sebaran sedimen di lokasi tersebut.Kata kunci: granulometri; sedimen; terumbu karang; padang lamun

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Mapping of Sediment on the Waters Around Panjang Island, Banten Bay, Indonesia

Journal of Geoscience Engineering Environment and Technology ◽

10.25299/jgeet.2021.6.2.5057 ◽

2021 ◽

Vol 6 (2) ◽

pp. 99-106

Author(s):

Syawaludin A Harahap ◽

Lintang P. S. Yuliadi ◽

Noir P. Purba ◽

Awal A. Aulia

Keyword(s):

Grain Size ◽

Surface Sediment ◽

Fine Sand ◽

Coarse Sand ◽

Survey Method ◽

Sediment Composition ◽

Medium Sand ◽

Sediment Distribution ◽

Sediment Samples ◽

Sand And Gravel

This study was conducted to map the surface sediment conditions in the waters around Panjang Island, Banten Bay. The survey method was conducted in February 2015 by taking sediment samples using a grab sampler at 15 stations. Sediment analysis was conducted to determine the grain size using the granulometry method which was then processed using the KUMMOD-SEL software to obtain the composition and texture of the sediment. The results of processing sediment samples at each station obtained that the grain size of sediments in the waters around Panjang Island ranged from -0.7 to 2.6 in the phi (φ) scale. Sediment composition consists of sand and gravel, with sand dominance of 89.1 %. Sediment textural classification consists of only 4 categories i.e. very coarse sand, coarse sand, medium sand, and fine sand. In general, the pattern of sediment distribution follows the pattern of water depth, where fine sand occupies deeper areas. Meanwhile, medium sand dominates surface sediment distribution in the study area.

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Perimeter of The Tricuspid Valve: A Cadaveric Human Heart Study

International Journal of Research in Pharmaceutical Sciences ◽

10.26452/ijrps.v11i3.2481 ◽

2020 ◽

Vol 11 (3) ◽

pp. 3424-3428

Author(s):

Kirti Chaudhary ◽

Amey Dhatrak ◽

Brij Raj Singh ◽

Ujwal Gajbe

Keyword(s):

Tricuspid Valve ◽

Tricuspid Regurgitation ◽

Right Ventricular Dysfunction ◽

Mean Value ◽

Female Population ◽

Functional Tricuspid Regurgitation ◽

Lv Dysfunction ◽

Heart Study ◽

Males And Females ◽

The Right

Historically, the research on the right ventricle (RV) has been neglected by his left equivalent because of the complexity of left ventricle (LV) dysfunction. Tricuspid regurgitation (TR) can be classified as linked to primary valve disease or functional in nature, but most are functional. Although it was historically assumed that such functional Tricuspid regurgitation, i.e. arising from leftsided disease, and it can be resolved after corrective surgery, but after successful surgery, on the aortic or mitral valve annular dilatation, the Tricuspid regurgitation and right ventricular dysfunction may persist.To study the circumference of tricuspid orifice and it’s the diameter in two perpendicular planes and its comparison among the male and female population. The material for the present study comprised of 50 formalin fixed human hearts (35 males and 15 females) which were obtained from the department of anatomy. In this study, it is observed that: The mean value of circumference of a tricuspid orifice is 11.01+/-0.63 cm. The diameter of tricuspid orifice along the frontal dimension is 3.06+/-0.38 cm, and the diameter along the sagittal dimension is 2.26+/-0.23 cm. The measurements of the circumference of tricuspid orifice reported for males and females in western countries were higher than the present study and the diameter along the frontal dimension is greater than the diameter along the sagittal dimension. The tricuspid valve diameter along the frontal dimension was more than the diameter along the sagittal dimension in both males and females.

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The Application of Organic Plant Media Composition on Indian Mustard Crops (Brassica Juncea L) in Polybag

AJARCDE | Asian Journal of Applied Research for Community Development and Empowerment ◽

10.29165/ajarcde.v1i1.3 ◽

2019 ◽

Vol 1 (1) ◽

pp. 16-22

Author(s):

Nora Augustien ◽

Pawana Nur Indah ◽

Purnawati Arika ◽

Irsyad Irsyad ◽

Hadi Suhardjono

Keyword(s):

Urban Communities ◽

Urban Areas ◽

Indian Mustard ◽

Vegetable Crops ◽

Sustainable Food ◽

Mustard Plant ◽

Soil Media ◽

Wet Weight ◽

Number Of Leaves ◽

The Right

Indian mustard plants are the main vegetable crops consumed by urban communities. The need for this vegetable increases along with the increase in culinary tourism in each region and the government's appeal on sustainable food home. One effort made to meet the needs of vegetable mustard in urban areas can be cultivated using polybags. The main problem of vegetable cultivation on polybags is the availability of soil media. To overcome the limitations of soil media it is attempted to substitute it with organic litter enriched with MOL (local microorganisms). The purpose of research is to find the right combination of planting media for mustard plants. The results showed that the composition of K7 = soil: compost: litter of hay: litter of maize (2: 1: 1: 1) best on plant length, number of leaves, length of root leaves and number of roots while the wet weight of mustard plant (g) K7 = soil: compost: litter of maize: litter of corn (2: 1: 1: 1) and K8 = soil: compost: litter of maize: litter of maize: cocopeat (2: 1: 1: 1: 1) or soil: compost + urea. Increased weights of wet mustard by 63% compared to soil media and 20% compared to soil composition: compost + urea. Organic straw in the form of straw: litter of corn stalk: cocopeat enriched with MOL are able to become ready-made planting media on the cultivation of indian mustard plants in polybags.

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USING STATISTICAL ANALYSIS GRAIN SIZE DISTRIBUTIONS, GRAIN SHAPES TO DISTINGUISH POPULATIONS OF GYPSUM SAND, WHITE SANDS NATIONAL MONUMENT

10.1130/abs/2019am-340089 ◽

2019 ◽

Author(s):

Richard Langford ◽

Keyword(s):

Grain Size ◽

Statistical Analysis ◽

Size Distributions ◽

National Monument ◽

Grain Size Distributions ◽

White Sands National Monument ◽

White Sands

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Water for Life

10.1093/oso/9780190693152.003.0005 ◽

2017 ◽

Author(s):

Madeline Baer

Keyword(s):

Human Rights ◽

Citizen Participation ◽

Urban Areas ◽

Water Policy ◽

State Capacity ◽

National Level ◽

Human Right ◽

Political Will ◽

Water And Sanitation ◽

The Right

Chapter 5 provides a case study of the human rights-based approach to water policy through an analysis of the Bolivian government’s attempts to implement the human right to water and sanitation. It explores these efforts at the local and national level, through changes to investments, institutions, and policies. The analysis reveals that while Bolivia meets the minimum standard for the human right to water and sanitation in some urban areas, access to quality water is low in poor and marginalized communities. While the Bolivian government expresses a strong political will for a human rights approach and is increasing state capacity to fulfill rights, the broader criteria for the right to water and sanitation, including citizen participation and democratic decision-making, remain largely unfulfilled. This case suggests political will and state capacity might be necessary but are not sufficient to fulfill the human right to water and sanitation broadly defined.

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Effects of landscape attribute towards bird assemblages in urban areas of Peninsular Malaysia

Urban Ecosystems ◽

10.1007/s11252-021-01151-1 ◽

2021 ◽

Author(s):

Farah Shafawati Mohd-Taib ◽

Wardah Mohd-Saleh ◽

Siti Noor Radiah Ismail

Keyword(s):

Urban Areas ◽

Peninsular Malaysia ◽

Bird Assemblages

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The importance of changing urban scenery in the assessment of citizens’ soundscape perception. On the need for different time-related points of view

Noise Mapping ◽

10.1515/noise-2021-0011 ◽

2021 ◽

Vol 8 (1) ◽

pp. 138-161

Author(s):

Jerónimo Vida Manzano ◽

José Antonio Almagro Pastor ◽

Rafael García Quesada

Keyword(s):

Urban Areas ◽

Noise Exposure ◽

Noise Control ◽

Action Plan ◽

Heavy Traffic ◽

Legal Protection ◽

Complementary Method ◽

Reduction Strategies ◽

The Right ◽

The City

Abstract The city of Granada is experimenting a big urban transformation, attending national and international commitments on clean air, energy efficiency and savings linked to greenhouse gases reduction strategies and sustainable development action plans. This situation constitutes a good scenario for new noise control approaches that take into account the sound variable and citizens empowering in urban design, such as the soundscape assessment of urban territory. In this way, soundscape tools have been used in Granada as a complementary method for environmental noise characterisation where traditional noise control techniques are difficult to be carried out or give limited results. After 2016 strategic noise map and in the preparation of the new noise action plan, the city came across a great acoustic challenge in a new area located outskirts characterised by growing urbanisation, still under development, the greatest legal protection because of sensitive teaching and hospital buildings and the greatest noise exposure from nearby ring-way supporting heavy traffic flow. As quiet urban areas are not characterised by the absence of noise but for the presence of the right noise, this research intended to provide the local administration with results and proposals to transform this conflict area in a pleasant or quiet urban place. Main results came from important and significative differences in morning and evening characterisation, as great differences appear in soundscape assessment over the day and along the soundwalk path, indicating the importance of time and local issues to adequately characterised citizens perception to be considered by administration in the development of strategies and effective noise control actions.

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