scholarly journals RELATIONSHIP BETWEEN HEAT SHIELDING EFFECT AND MOISTURE CONTENT BY LAYING WATER CONTENT CONCRETE BOARD ON THE ROOFTOP IN SUMMER AND WINTER

2017 ◽  
Vol 73 (6) ◽  
pp. II_147-II_156
Author(s):  
Kazuma MAEKAWA ◽  
Hiroyuki YAMADA
Keyword(s):  
Moisture Content ◽  
Water Content ◽  
Shielding Effect ◽  
Heat Shielding

scholarly journals KARAKTERISTIK DAN SKRINING FITOKIMIA EKSTRAK ETANOL 70% BATANG KEPUH (Sterculia foetida L.)

Jurnal Kimia ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 22
Author(s):  
N. P. S. E. Cahyani ◽  
J. Susiarni ◽  
K. C.S. Dewi ◽  
N. L.P. Melyandari ◽  
K. W.A. Putra ◽  
...  
Keyword(s):  
Moisture Content ◽  
Water Content ◽  
Ethanol Extract ◽  
Phytochemical Screening ◽  
Residual Solvent ◽  
Solvent Content ◽  
Residual Content ◽  
Ethanol Level ◽  
Anti Inflammatory

Kepuh (Sterculia foetida L) is a type of kapok plant that has been scientifically proven to have activity as an anti-inflammatory and analgesic. 70% ethanol extract of stem stem is obtained by maceration using 70% ethanol. Examination of the characteristics of 70% ethanol extract of kepuh stem included organoleptic, of moisture content and determination of residual solvent content. Phytochemical screening of 70% ethanol extract of kepuh bark includes: alkaloid, flavonoid, saponin, tannin , polyphenol, and examination of glycosides. The results of the examination of the characteristics of 70% ethanol extract of kepuh stem obtained water content of 8.66 ± 0.748%, the residual content of the solvent had a 0 (zero) ethanol level. The results of phytochemical screening showed 70% ethanol extract of stem stem containing steroid compounds, triterpenoids, flavonoids, saponins, tannins and polyphenols. The identification using UV-Vis spectrophotometry produced ? 212, the absorbance was 1.8601 and ? 284, the absorbance was 0.42186.

Characterization of Shear Strength and Interface Friction of Organic Soil

2020 ◽  
Vol 857 ◽  
pp. 203-211
Author(s):  
Majid Hamed ◽  
Waleed S. Sidik ◽  
Hanifi Canakci ◽  
Fatih Celik ◽  
Romel N. Georgees
Keyword(s):  
Shear Stress ◽  
Shear Strength ◽  
Internal Friction ◽  
Moisture Content ◽  
Water Content ◽  
Friction Angle ◽  
Structural Materials ◽  
Organic Soil ◽  
Internal Friction Angle ◽  
Interface Friction

This study was undertaken to investigate some specific problems that limit a safe design and construction of structures on problematic soils. An experimental study was carried out to examine the influence of loading rate and moisture content on shear strength of organic soil. Influece of moisture content on interface friction between organic soil and structural materials was also attempted. A commonly used soil in Iraq was prepared at varying moisture contents of 39%, 57% and 75%. The experimental results showed that the increase in water content will decrease the shear stress and the internal friction angle. An increase of the shearing rate was found to decrease the shear stress and internal friction angle for all percetanges of water contents. Further, direct shear tests were carried out to detect the interface shear stress behavior between organic soil and structural materials. The results revealed that the increase in water content was shown to have significant negetavie effects on the interface internal friction and angle shear strength.

Dispersion studies on Gezira soil

1941 ◽  
Vol 31 (4) ◽  
pp. 466-478 ◽  
Author(s):  
T. N. Jewitt
Keyword(s):  
Moisture Content ◽  
Water Content ◽  
Initial Moisture Content ◽  
Degree Of Dispersion ◽  
Heavy Clay

1. The degree of dispersion on shaking of the heavy clay Gezira soil has been studied in relation to its initial moisture content when it is added to the water. A minimum dispersibility was found at about 7% initial moisture content. Such behaviour is different from that found with certain English soils by Puri & Keen.2. Spontaneous dispersion was studied using the same soil, and by this method it was found that the dispersion decreases with increasing moisture content over a range of zero to 9% moisture.3. This relation between dispersion and water content is discussed in relation to possible effects in the field of practice. Attention is drawn to possible seasonal and daily differences in the effect of rainfall.

scholarly journals KARAKTERISTIK SIFAT-SIFAT KIMIA DAN ORGANOLEPTIK KUE KERING BERBAHAN DASAR PATI SAGU, UBI KAYU, UBI JALAR DAN KELADI

2016 ◽  
Vol 5 (1) ◽  
pp. 1
Author(s):  
Febby J Polnaya ◽  
Rachel Breemer
Keyword(s):  
Moisture Content ◽  
Water Content ◽  
Sweet Potato ◽  
Sensory Analysis ◽  
Total Protein ◽  
Proximate Composition ◽  
Ash Content ◽  
Crude Fiber ◽  
Brownish Yellow ◽  
Color Texture

The purpose of this research was to characterize chemical and sensory properties (color, texture, taste and liking) of starch-based sago, cassava, sweet potato and cocoyam cookies. Analysis of cookies include moisture content, ash, fat, protein, crude fiber and sensory analysis including color, texture, taste and likeness). The proximate composition indicated that the water content of cookies varied between 1.48 to 2.05%, ash content of 0.65 to 0.72%, 19.23 to 21.76% of fat, crude fiber from 0.41 to 0.71% and 1.33 to 2.42% of total protein. Based on organoleptic tests, the color of cookies was yellow to brownish-yellow, with crispy texture, the taste was sweet and were mostly preferred.

scholarly journals Numerical investigation of wetting front migration and soil water distribution under vertical line source irrigation with different influencing factors

2021 ◽  
Author(s):  
Yanwei Fan ◽  
Liangjun Ma ◽  
Hujun Wei ◽  
Pengcheng Zhu
Keyword(s):  
Soil Moisture ◽  
Moisture Content ◽  
Water Content ◽  
Influencing Factors ◽  
Line Source ◽  
Vertical Line ◽  
Initial Water Content ◽  
Wetting Front ◽  
Simulation Results ◽  
Soil Wetting

Abstract Vertical line source irrigation (VLSI) is an underground irrigation method suitable for deep-rooted plants. Understanding the characteristics of the soil wetting body of the VLSI was the key to designing this irrigation system. On the basis of experimental verification of the reliability of the HYDRUS simulation results of VLSI under the conditions of soil texture (ST), initial water content (θi), line source buried depth (B), line source diameter (D) and line source length (L), numerical studies of the migration law of the wetting front of VLSI and the distribution characteristics of soil moisture were performed. The wetting front migration (WFM) was mainly influenced by ST, θi, D and L (P < 0.05), while B had little effect on WFM (P > 0.05). The shape of the soil wetting body changed little under different influencing factors. The water content contour was approximately ‘ellipsoidal’ around the line source. The soil moisture near the line source was close to the saturated moisture content. The moisture content around the line source gradually decreased outward, and the contour lines gradually became dense. According to the simulation results, a prediction model of multiple factors influencing the migration process of the VLSI wetting front was established. The predicted value was in good agreement with the measured value. The results of this research could provide a theoretical basis for further optimizing the combination of VLSI and irrigation elements.

scholarly journals Klasifikasi Kematangan Jeruk Lemon Menggunakan Metode K-Nearest Neighboard

2018 ◽  
Vol 2 (2) ◽  
Author(s):  
Indrawati Indrawati
Keyword(s):  
Moisture Content ◽  
Water Content ◽  
Nearest Neighbor ◽  
Training Image ◽  
K Nearest Neighbor ◽  
Oil Glands ◽  
Shortest Distance ◽  
Approximate Distance ◽  
Dark Green

Abstrak— Klasifikasi jeruk lemon adalah disiplin bidang ilmu yang menggambarkan identifikasi jeruk berdasarkan sifatnya. Beberapa sifat dari jeruk lemon, diantaranya kulit terluar lemon kaya akan kelenjar minyak, kematangan ditandai dengan warna kulit kuning terang. Jeruk lemon yang berwarna hijau gelap, menandakan jeruk lemon tersebut belum matang dan kandungan air di dalamnya akan lebih sedikit. Pada penelitian ini kematangan diklasifikasikan menggunakan metode K-Nearest Neighbor. Hasilnya adalah klasifikasi kematangan dengan kadar air 90% jarak terdekat rata-rata sebesar 10,86 dengan akurasi 85%, sedangkan pada pengujian jeruk lemon dengan kematangan 80% diperoleh jarak terdekat 7,3 dengan akurasi 81%. Pada pengujian dengan kematngan dengan kadar air 70 persen diperoleh jarak rata-rata terdekat 19,4 dan akurasi 86,11%. Untuk jeruk lemon dengan kategori tidak matang dengan kadar air 50% diperoleh jarak terdekat sebesar 19,46 dan akurasi 88,9 % , sedangkan pada pengujian jeruk lemon mentah dengan kadar air 40% diperoleh jarak terdekat 16,19 dan akurasi 88,73 dan untuk pengujian jeruk lemon tidak matang dengan kadar air 30% diperoleh klasifikasi dengan jarak terdekat rata-rata sebesar 1,85 dan akuras 84,13%. Hal ini menunjukkan bahwa sistem klasifikasi dengan menggunakan metode K-NN cukup baik, indikatornya adalah jarak terdekat rata-rata yang dihasilkan antara citra uji dan citra training bernilai antara 1,85 sampai 19,46 dan akurasinya antara 81% sampai88,89 %.Kata kunci— Akurasi, Jeruk lemon, Klasifikasi, kedekatan, tetangga, uji.Abstract— Classification of lemon is the discipline of science that describes the identification of citrus by its character. Some characterof lemon, lemon outer shell is rich in oil glands, maturity is marked by bright yellowskin color, lemon which is dark green, indicates the immature lemon and water content in it will be less. In this study maturity are classified using K-Nearest Neighbor method. The result is a classification of maturity with 90% moisture content has shortest distance average of 10.86 with an accuracy of 85%, while in the testing of lemon with a maturity of 80% obtained the nearest distance of 7.3 with an accuracy of 81%. In maturity testing with a water content of 70 percent derived average approximate distance of 19.4 and 86.11% accuracy. For the lemon with the category of immature by moisture content of 50% obtained the nearest distance at 19.46 and accuracy of 88.9%, while in the testing of raw lemon with a moisture content of 40% obtained the nearest distance 16.19 and accuracy of 88.73 and for testing of immature lemon with a water content of 30% obtained classifications with the average nearest distance of 1.85 and accuracy of 84.13%. This indicates that the classification system using K-NN was very good, the indicator is the average nearest distance between the tested images and training image between 1.85 to 19.46 valuable and accuracy between 81% to 88.89%.Keywords— Accuracy, Lemon, classification,nearets, neighbors, test.

scholarly journals Pengaruh Konsentrasi Asam Askorbat dan Waktu Perendaman terhadap Kadar Air dan Bilangan Peroksida pada Minyak Kopra

2016 ◽  
Vol 8 (1) ◽  
pp. 29-32
Author(s):  
Erma Suryani ◽  
Virna Muhardina
Keyword(s):  
Ascorbic Acid ◽  
Moisture Content ◽  
Water Content ◽  
Acid Concentration ◽  
Fat Content ◽  
Peroxide Number ◽  
Ascorbic Acid Concentration ◽  
High Fat ◽  
Soaking Time ◽  
Randomized Design

(Effect of Ascorbic Acid Concentration and Soaking Time on Water Content And Peroxide Numbers of Copra Oil) ABSTRACT. Copra oil is a product produced from the dried coconut through several stages of drying until the moisture content reaches 5-6%. Copra oil susceptible to oxidation due to containing high fat content. This causes the oil susceptible to rancidity, discoloration and odor. One of the efforts to prevent the oxidation of foods high in fat can be done with the giving ascorbic acid as an antioxidant. The purpose of this study was to determine the ascorbic acid concentration and coconut meat soaking time in the solution as well as to determine the effect of ascorbic acid on the water content and peroxide numbers of copra oil. This study used a Complete Randomized Design (CRD) with 2 factorial and three levels: (1) ascorbic acid concentration (0.5%, 1% and 1.55%) and (2) soaking time (10 minutes, 20 minutes and 30 minutes). The results showed that ascorbic acid concentration has significant effect (P≤0,01) on peroxide number. While soaking time has significant effect on the water content and peroxide.

Root effects on soil water and hydraulic properties

Biologia ◽  
2007 ◽  
Vol 62 (5) ◽  
Author(s):  
Horst Gerke ◽  
Rolf Kuchenbuch
Keyword(s):  
Soil Moisture ◽  
Moisture Content ◽  
Water Content ◽  
Bulk Density ◽  
Soil Water ◽  
Soil Water Content ◽  
Hydraulic Properties ◽  
Soil Hydraulic Properties ◽  
Soil Hydraulic ◽  
Root Effects

AbstractPlants can affect soil moisture and the soil hydraulic properties both directly by root water uptake and indirectly by modifying the soil structure. Furthermore, water in plant roots is mostly neglected when studying soil hydraulic properties. In this contribution, we analyze effects of the moisture content inside roots as compared to bulk soil moisture contents and speculate on implications of non-capillary-bound root water for determination of soil moisture and calibration of soil hydraulic properties.In a field crop of maize (Zea mays) of 75 cm row spacing, we sampled the total soil volumes of 0.7 m × 0.4 m and 0.3 m deep plots at the time of tasseling. For each of the 84 soil cubes of 10 cm edge length, root mass and length as well as moisture content and soil bulk density were determined. Roots were separated in 3 size classes for which a mean root porosity of 0.82 was obtained from the relation between root dry mass density and root bulk density using pycnometers. The spatially distributed fractions of root water contents were compared with those of the water in capillary pores of the soil matrix.Water inside roots was mostly below 2–5% of total soil water content; however, locally near the plant rows it was up to 20%. The results suggest that soil moisture in roots should be separately considered. Upon drying, the relation between the soil and root water may change towards water remaining in roots. Relations depend especially on soil water retention properties, growth stages, and root distributions. Gravimetric soil water content measurement could be misleading and TDR probes providing an integrated signal are difficult to interpret. Root effects should be more intensively studied for improved field soil water balance calculations.

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