Physical properties

Open Access Article

1 - Structural and electronic properties of Li_n, B_n, N_n and O_n (n=1-4) clustering on graphene: Density functional theory calculations with dispersive forces correction.
Malika Gallouze Mahrez Drir Abdelhafid Kellou

10.57647/J.JTAP.2023.1702.20

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Open Access Article

2 - Investigation on press time, resin content and soya stalk content on particleboard properties
Meysam Mehdinia Mohamad Layegh Asghar TatarI Ali Akbar Enayati

This study conducted to investigate usability of soya stalk as lignocellulosic material and wood alternative in particleboard manufacturing. Four levels of soya stalk (25, 50, 75, and 100%), 3 level of press time (5, 6, and 7 min), and the content of resin in More

This study conducted to investigate usability of soya stalk as lignocellulosic material and wood alternative in particleboard manufacturing. Four levels of soya stalk (25, 50, 75, and 100%), 3 level of press time (5, 6, and 7 min), and the content of resin in 3 levels (8, 10, and 12%) were considered as dependent variables. Results showed that bending properties (MOR and MOE) were enhanced by increasing soya stalk content in boards, while internal bonding (IB) property decreased. However, water uptake and thickness swelling after 2 and 24 immersions were increased. With increasing in resin content and press time, both mechanical and physical properties including bonding properties, internal bonding properties, water uptake and thickness swelling were suppressed. The results showed that soya stalk is a suitable wood alternative in particleboard manufacturing. Manuscript profile

Open Access Article

3 - Study of usability of pruned branches of Lagerstroemia spp in particleboard manufacturing
Meysam Mehdinia Mehrdad Ahmadi Edris Moazeni

10.30495/jrnr.2022.65277.10232

The aim of this study was to investigate the usability of pruned branches of Lagerstroemia spp. as a lignocellulosic substitute for particleboard manufacturing. In this study, the pruned branches of Lagerstroemia spp. were used at three levels of 20, 30 and 50% in weigh More

The aim of this study was to investigate the usability of pruned branches of Lagerstroemia spp. as a lignocellulosic substitute for particleboard manufacturing. In this study, the pruned branches of Lagerstroemia spp. were used at three levels of 20, 30 and 50% in weight and press temperature at three levels of 160, 170 and 180 °C, and the amount of adhesive at two levels of 8 and 10 were considered as variable factors. The results showed that the flexural properties (MOR and MOE) and internal bonding were decreased by increasing the amount of pruned branches of Lagerstroemia spp.&lrm; in the final board composition, while the amount of water uptake and thickness swelling were increased after 2 and 24 h of immersion. On the other hand, all mechanical and physical properties including flexural properties, internal bonding, water uptake and thickness swelling were improved by increasing the amount of adhesive and press temperature, after 2 and 24 hours of immersion. Finally, the results showed that the ratio of 40% of the pruned branches of Lagerstroemia spp.&lrm; can be used in combination with industrial wood chips to produce particleboard. Manuscript profile

Open Access Article

4 - Effect of land use changes on some soil physical and chemical properties (case study: Baneh)
لیلا غلامی مسعود داوری کمال نبی اللهی حامد جنیدی جعفری

Non-scientific and unconscious changes in land use have negative impacts on &lrm;the soil physical and chemical properties. In this research, the effect of land use &lrm;changes on some soil physical and chemical properties was investigated. For this propose, three site More

Non-scientific and unconscious changes in land use have negative impacts on &lrm;the soil physical and chemical properties. In this research, the effect of land use &lrm;changes on some soil physical and chemical properties was investigated. For this propose, three sites in three &lrm;&lrm;&lrm;adjacent land use &lrm;types including pasture, forest and&rlm; &rlm;agricultural&rlm; &rlm;lands were randomly selected in region of Baneh, &lrm;&lrm;&lrm;&lrm;&lrm;Kurdistan &lrm;province. Disturbed and undisturbed soil samples were collected from three sites at each of the different land use types from depths of 0–15 and 15–30 cm &lrm;and were analysed in the laboratory&lrm;. The results indicated that land use changes have no significant effects on the percentage of sand, silt and clay. Change in the land use type caused increase in bulk density and decrease in total porosity, soil hydraulic conductivity and aggregate stability. The &lrm;most percentage of coarse aggregates (0.25-8 mm) and fine aggregates (0.053-0.25 mm) was found in forest &lrm;and &lrm;agricultural land, respectively. Land use change caused increase in electrical conductivity and &lrm;soil reaction which increases with depth too. The results also indicated that land use change significantly decreases the amount of soil organic carbon. The average of soil organic carbon in forest, agricultural land and pastures were 4.99, 2.26 and 1.79%, respectively. In general, the results of this research showed that changes in land use has adverse effects on the soil physical and chemical properties that can result in reducing soil quality and increasing its degradation. Manuscript profile

Open Access Article

5 - The effect of type, particle size and amount of biochar on some physical and mechanical properties of calcareous soil
Hassan Osooli Ahmad Karimi Hossein shirani Sayyed Hassan Tabatabaei

10.30495/wsrcj.2021.18548

Recently, biochar has been considered as a soil conditioner. In research, the effect of the type and amount of biochar on soil properties has been emphasized. This field study was conducted to investigate the combined effect of type, amount and size of biochar particles More

Recently, biochar has been considered as a soil conditioner. In research, the effect of the type and amount of biochar on soil properties has been emphasized. This field study was conducted to investigate the combined effect of type, amount and size of biochar particles on the total porosity (TP), penetration resistance (PR), mean weight diameter of aggregates (MWD) in a sandy loam texture. Factorial experiment was performed as a randomized complete block design with three factors of type, amount and biochar particle size in three replications. Wheat straw, vermicompost and apricot firewood biochard were added to the soil in 0.5, 1.5 and 3% and particle sizes of 0.5, 0.5-1 and 1-2 mm. All three biochar increased TP significantly and decreased PR significantly compared to control. Biochar type had the largest contribution in TP and PR changes. The highest TP was obtained in the wheat straw biochar treatment with 3% and particle size of 1-2 mm. The greatest decrease in PR was observed in wheat straw biochar with a value of 3% and a particle size of 0.5-1 mm. Interaction of type, amount and size of biochar particles had the largest contribution to MWD change. The largest MWD (1.22 mm) was observed in wheat straw biochar with biochar amount of 0.5% and particle size of 0.5 mm. The results showed that the amount and size of biochar particles had different effects on soil properties depending on the type of biochar. Manuscript profile

Open Access Article

6 - Effects of quality of irrigation water on selected soil physical properties in rice cultivation lands (Oryza Sativa)
Najmeh Khodadadi Shoja Ghorbani Dashtaki Shahram Kiani

Growing population and increasing industrial and agricultural activities and successive droughts have caused more attention to soil and water conservation. To achieve this propose using wastewater for irrigating agricultural lands increased in recent decades. This study More

Growing population and increasing industrial and agricultural activities and successive droughts have caused more attention to soil and water conservation. To achieve this propose using wastewater for irrigating agricultural lands increased in recent decades. This study aimed investigating the effects of wastewater including municipal, industrial wastewater and river water on some soil physical characteristics. This research done in the area of agricultural lands located in the city Lenjan Zarrin Shahr. The lands area that have the same parent material and irrigated with municipal and industrial wastewaters (each for 8 years) and river water (20 years) where were selected for treatment. After detailed analysis for each of the treatments listed in 4 replications and tests were used to predict and physical properties include were measured. The result showed that irrigation with municipal and industrial wastewaters increased the bulk density 1.3 g/cm3 (in river water treatment) to 1.63 and 1.76 g/cm3. Irrigation with this wastewaters caused increase in aggregate stability to 0.67 and 0.69 mm in municipal and industrial wastewaters compare to river water (0.27 mm). Decreasing the saturation soil hydraulic conductivity and infiltration and bimodal retention curve were other soil physical properties reactions to using municipal and industrial wastewaters. The result showed that irrigation with wastewater had negative effect on physical properties and caused change in particle size distribution and recommended that monitored effect of long-term using of wastewater on physical properties. Manuscript profile

Open Access Article

7 - Suspended sediment particle size distribution in Kojour river
Seyed Hamidreza Sadeghi Mohamad Ali Zakeri

Investigation on physical characteristics of suspended sediment is an important subject in river studies. The particle size distribution of the suspended sediment is one of these physical properties represents important links between sources and fluvial mechanisms in th More

Investigation on physical characteristics of suspended sediment is an important subject in river studies. The particle size distribution of the suspended sediment is one of these physical properties represents important links between sources and fluvial mechanisms in the watersheds. However, limited studies have been conducted in field of suspended sediment particle size distribution. The present study therefore aimed to investigate the particle size distribution of suspended sediments in Kojour River within the period of one year. Toward this attempt, 24 suspended sediment samples were collected at intervals of some 15 days. The particle size distribution was determined after necessary preparations by laser scattering particle size of HORIBA LA-950. The results showed that the suspended sediment diameter were in the range of 0.82 to 353.55 microns during time of sampling and in different conditions. Also, the silt particles with partial contribution of 97.68 % had the largest contribution in the suspended sediment load. In addition, the results indicated that the precipitation and sand harvesting plays an important role in increasing the coarse particles of suspended sediment load.   Manuscript profile

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8 - Comparison of Physicochemical Characteristics and Bioactive Components of Four Citrus Fruit Varieties -Their Evaluation for Juice and Concentrate Production
Seyed Yousef Pour Mir Ali resa Sadeghi Mahonak Javad Fatahi Moghadam mehran Alami

Introduction: Citrus fruits have different characteristics and properties consisting of physicochemical characteristics and antioxidant potential. In this study physical, quantitative and qualitative characteristic and bioactive components of four citrus varieties in th More

Introduction: Citrus fruits have different characteristics and properties consisting of physicochemical characteristics and antioxidant potential. In this study physical, quantitative and qualitative characteristic and bioactive components of four citrus varieties in the north part of Iran are studied for their possible use in the fruit juice and concentrate processing factories. Materials and Methods: Some characteristics and properties consisting of fruit length, diameter, spherical coefficient, volume, peel thickness, pulp percentage, juice percentage, TSS, sugar, TA, ascorbic acid, total phenolics and anti-oxidant capacity were determined according to the defined standard methods. Results: The results showed that fruits were different in shape. The highest and lowest length and volume have been found in Thomson orange and Unshiu mandarin respectively. Siavaraz orange and Unshiu mandarin had the maximum and minimum spherical coefficient (0.97 and 0.91) respectively. The Thomson orange with highest peel thickness (4.82 mm) and pulp (9.53%) had the lowest percent juice extracted in the Laboratory (31.15%) and in the production line (26.78%). There was the highest amount of total sugar and TA in Unshiu mandarin (9.19 g.g-100) and Siavaraz orange (1.85 g.g-100) respectively. Considering the bioactive compounds, the results revealed that there was the highest concentration of ascorbic acid and total phenolic compounds in Siavaraz orange (58.3 mg.g-100) and moro Blood orange (55.25mg.g-100) respectively. Furthermore, there were a positive correlation between the antioxidant activity and ascorbic acid (R2= 0.91) and total phenolic compounds (R2= 0.71). The lowest antioxidant capacity was related to Unshiu mandarin with 38/19%. Conclusion: Thomson orange was not a suitable variety for juice production due to high peel thickness and pulp, low juice percentage and also bitter taste after juice extraction. Inversely, Siavaraz orange had more industrial indices including high juice percentage, balance pulp and the highest spherical coefficient. Unshiu mandarin and Moro (Blood orange) might be consumed as fresh or be used for industrial juice extraction. Manuscript profile

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9 - Determination of Some Physical Properties of Pistachio Nut and Its Kernel (Qazvini Varieties)
mohammad gholami porshokohi milad mohammadi shamami shahram mohseni ali mashallah kermani ehsan abdolalizadeh

Introduction: Understanding the physical and mechanical characteristics and knowledge of agricultural products are important and vital and knowledge steps for post harvesting storage and preservation. In this study, several physical properties of the Qazvinian cultivars More

Introduction: Understanding the physical and mechanical characteristics and knowledge of agricultural products are important and vital and knowledge steps for post harvesting storage and preservation. In this study, several physical properties of the Qazvinian cultivars (Qazvini and Boein zahra) of pistachio nut and their kernel and the effect of different levels of moisture content on their characteristics were evaluated.Materials and Methods: Physical properties that consisted of dimensional specifications such as three major diameter (length, width, thickness), unit mass, sphericity, geometric and arithmetic mean diameter, surface area, true volume, true density, bulk density, porosity and the static coefficient of friction at five levels of moisture content (3.5%, 12%, 19.5%, 27%,35.5% ) were measured.Results: The results of this investigation concerned with geometrical properties indicated that moisture had significant effects on the dimension, geometric and arithmetic mean diameter,sphericity, surface area of pistachio nut and its kernel in both cultivars.Conclusion: By increasing the moisture content, all the listed properties of both cultivars (Qazvini and Boein Zahra) have been increased. The highest static coefficient of friction for Qazvini and Boein Zahra cultivars is on aluminum and the lowest is on plastic surfaces. The kernels of Qazvini and Boein Zahra pistachio, had the highest coefficient on wood and the lowest coefficient on plastic and glass surfaces respectively. Manuscript profile

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10 - Determination and Investigation of Some Physical and Mechanical Properties of Almond (Rabi Variety)
M. Salimi M. Gholami Sh. Mohseni E. Abdolalizade

Introduction: Optimum machinery and equipment designing for transportation, harvest andprocessing of agricultural products need the knowledge of physical and mechanical propertiesof the products.Materials and Methods: In this research, the physical properties consisting More

Introduction: Optimum machinery and equipment designing for transportation, harvest andprocessing of agricultural products need the knowledge of physical and mechanical propertiesof the products.Materials and Methods: In this research, the physical properties consisting of dimensions,mass, average geometrical diameter, sphericity, surface area, volume and the process ofmoisture attraction and the mechanical properties including force, deformation, ruptureenergy and power of almond the variety of Rabi were determined and evaluated.Results: The average of geometrical diameter for the whole almond was 22.37 mm and for itskernel was 13.42 mm. The sphericity for the almond and its kernel were 0.654% and 0.523%respectively. By placing some samples of almond kernel in the water, the process of moistureabsorption of almond kernel was studied and the mathematical models were presented. Themoisture absorption of the kernel when placed in the water for a period of 9-13 hours was 36-41% and this raised to 44% after 18 hours.Conclusion: Statistical coefficient of friction of almond and its kernel on glass andgalvanized iron was the minimum, respectively. Study of the effect of moisture on thestatistical coefficient of friction showed that by increasing the moisture, this coefficientincreased. Investigation concerned with mechanical properties showed that the effect ofloading speed and direction on rupture force, energy and power in probability level of 1%were significant. Power consumption to rupture almond was increased by increasing the speedfrom 50 to 200 mm/min. By increasing loading speed the rupture force was significantlydecreased and deformation in rupture point was increased. Rupture force of almond in loadingin the direction of axis was minimum. Manuscript profile

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11 - Physical Properties of Fermented Milk Tablets
Z. Barzegar M. Jahadi M. A. Hanifpour

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12 - Rheological, Physical and Sensory Properties of Mayonnaise Formulated with Sesame Oil
R. Pazhvand M. Khavarpour

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13 - Physical and Rheological Properties of Oil in Water Heat Stable Emulsions Made from Different Stabilizers
A. Ahmadi-Dastgerdi A. Nasirpour E. Rahimi

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14 - Biodiesel Production Process from Waste Vegetable Oil and Optimization of its Physical Properties
Mahdy Turkish Boldaji Bahman Najafi Amir hossein Zamzamiyan Reza Ebrahimzadeh

Biodiesel is Alkyl Ester of fatty Acids that is produced from vegetable oils or animal fats. Biodiesel compared with diesel fbel contains less sulftir and aromatic compounds, and includes 10% oxygen in its molecular construction which results decreasing in exhaust emi More

Biodiesel is Alkyl Ester of fatty Acids that is produced from vegetable oils or animal fats. Biodiesel compared with diesel fbel contains less sulftir and aromatic compounds, and includes 10% oxygen in its molecular construction which results decreasing in exhaust emission pollutants of diesel engine. In this research biodiesel is produced from waste cooking oil by means ofTrans Esterification method in the presence ofNaOH catalyzes (0.5 % oil weight) and 6:1 of methanoi to oil ratio. For improving some physical properties of biodiesel, such as cloud point and pour point crystallization of ester with n-hexane solvent was used. Some blends with different levels of biodiesel and diesel fuel were obtained from each kind of blend fuel. Physical properties identified and compared to diesel fuel #2. Conclusions show: increasing of biodiesel percent in blend resulted increasing of density and viscosity. High percent of biodiesel in blends, has negative effect on cloud point and pour point, and so compared with diesel fuel, causes increasing these two properties. Manuscript profile

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15 - Study on soil properties at various depths of Hamoun ecosystem to creative tourism ‎environment ‎
Mansour Jahantigh

The aim of this research was Study on soil chemical and physical properties at various &lrm;depths of Hamoun wetland soil ecosystem causes in recent decade floods. In this research soil &lrm;samples were taken from the 0-5, 5-50, 50-75 and 75-100 cm depth at each locati More

The aim of this research was Study on soil chemical and physical properties at various &lrm;depths of Hamoun wetland soil ecosystem causes in recent decade floods. In this research soil &lrm;samples were taken from the 0-5, 5-50, 50-75 and 75-100 cm depth at each location, and analyzed &lrm;for pH, EC, ESP, CaCO3, organic mater, organic carbon, potassium, nitrogen, phosphorus, SAR, &lrm;SP, calcium and texture. The data was organized and entered into Statistical Package for Social &lrm;Sciences (SPSS) software version 20.0 for windows. The data shows that pH, EC, ESP, CaCO3, &lrm;organic mater, organic carbon, potassium, nitrogen, phosphorus, SAR, SP, calcium and clay has &lrm;been indirectly relationship with depth. The relationships between this parameters and soil depth &lrm;has significantly in 1% level (P Manuscript profile

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16 - Analysis of the phenomenon of scattering in polymer optical fibers
Hani shahnazari Hadi Shahnazarisani

In recent years, Polymer Optical Fibers (POFS) have been widely used for short-distance communication connections and various estimation applications due to their amplifying properties, large core diameter and high numerical aperture. Be that coplagenuria has made them More

In recent years, Polymer Optical Fibers (POFS) have been widely used for short-distance communication connections and various estimation applications due to their amplifying properties, large core diameter and high numerical aperture. Be that coplagenuria has made them comfortable. Dispersion is one of the issues that affects the performance of polymer optical fibers and affects and limits the maximum transmission distance and information transfer capacity. For this reason, the study of the phenomenon of scattering in these fibers has become widespread today. In this paper, the scattering of light intensity is measured, and the far and near field patterns, ie for Field and near Field, are obtained for this light scattering, and simulations are performed using a precise computational model based on the wave tracking method. And the location of the conduction scattering intensity in each polymer optical fiber and the far and near field patterns obtained from the output of these fibers are measured and determined by the simulation results, which is more than the average size of the effective non-uniformities leading to scattering. In optical fibers, they are polymerized at about 200 nm, and these non-uniformities occur at the interface between the core and the shell. Manuscript profile

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17 - Investigating the relationship between temperature, net radiation flux by biophysical properties and lanuse using LandSat 8 satellite imagery
Mohammad Karimi Firozjaei Majid Kiavrz Mogadam

Due to high heterogeneity in the land surface properties including variation in the type of surface coverage, varied topography conditions and placement in different geographic locations, investigating the relationship between temperature and net radiation and listed pa More

Due to high heterogeneity in the land surface properties including variation in the type of surface coverage, varied topography conditions and placement in different geographic locations, investigating the relationship between temperature and net radiation and listed parameters of properties has great importance. The aim of this study is to investigate the relationship between temperature and net radiation surface with Indexes biophysical properties and land use in the region. For this purpose, LandSat8 satellite image, MODIS water vapor product and digital elevation model map of the city of Sari are used. In order to calculate the surface temperature, single channel algorithm, net radiation from Surface energy balance algorithm for land (SEBAL) mountain algorithm and the extraction of different surface properties from Tasselled cap transformation (TCT) Indexes were used. also, the combination of Maximum likelihood classification methods and decision tree are utilized to classify Image. Net radiation has a direct relationship with Normalized difference vegetation index (NDVI), Greenness and Wetness parameters and inverse relationship with mean correlation coefficient 0.8 with NDBI, Albedo, Brightness and surface temperature parameters. In this study, the correlation coefficient of relationship between Wetness, Greenness and Brightness indicators and net radiation surface is 0.94. The Built up lands with an average 600.38  have the lowest net radiation and forest lands with an average 759.5  have the highest net radiation flux in the region. The results show that using remote sensing data and considering the TCT parameters related to biophysical properties of surface are very useful to assess the temperature and net radiation of the region. Manuscript profile

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18 - The effect of fish powder using on wood plastic composite biodegradability
ali kazemi

As the use of wood plastic composites (WPC) in various industries has increased significantly and due to the high importance of environmental issues in industry and research and the fact that products made of petroleum polymers have too little biodegradability, it is im More

As the use of wood plastic composites (WPC) in various industries has increased significantly and due to the high importance of environmental issues in industry and research and the fact that products made of petroleum polymers have too little biodegradability, it is important to conduct research to improve and solve this environmental problem. Due to the high amount of volatile nitrogen, low quality fish powder is not used in the industry, and as a result, it can be use as cheap and biodegradable filler in wood plastic. In this research, the effect of fish powder amount, substrate type, and coupling agent (MAPE) amount on the physical characteristics of wood-plastic composite was investigated. The results showed that by increasing fish powder amount and decreasing coupling agent amount, the highest amount of degradability is obtained. Manuscript profile

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19 - Study of Soil Conservation in Agroforestry systems (Case study: Friedan and Chadegan cities in Esfahan province)
زهره Bazvand S.M Hasani داود azadfar G.H Zahedi Amiri محمد Avatefi hemmat

Soil is one of the most important parts of the renewable natural resources, which is damaged by cutting down the trees. If this valuable resource is not protected, the output of it is reduced and the life of mankind and plants are endangered. Soil conservation is a cruc More

Soil is one of the most important parts of the renewable natural resources, which is damaged by cutting down the trees. If this valuable resource is not protected, the output of it is reduced and the life of mankind and plants are endangered. Soil conservation is a crucial issue and understanding how it is influenced by different factors is of utmost importance in agroforestry systems. The efficiency of agroforestry systems for regulating soil erosion can be increased in response to the similarities between these systems to the natural forest concerning the litter frequency, distance and height of trees. This study was conducted to determine the best agroforestry systems in respect to erodibility along with soil conservation. The results of this investigation comprise diverse aspects. The two important aspects of this study include (1) identification and recording the number of systems, operations and agroforestry technologies present in the area and (2) exploring the soil condition of agroforestry systems, available in the area as well as conserving the soil in these systems. Regarding the literature reviews, 3 factors were evaluated to determine the erodibility or non-erodibility of agroforestry systems (texture, porosity and soil gravimetric moisture percent). As expected, the results of this investigation revealed that trees were appropriate candidates for soil conservation and reclamation in terms of erodibility in relation to other systems in this region.     Manuscript profile

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20 - اثر پوسته های بادام زمینی به عنوان جایگزین پیت در کشت گلدانی بر رشد و تغذیه بگونیا رکس
علی محبوب خمامی علی آجیلی لاهیجی رضا علیپور سید ابراهیم حجتی

            بدلیل وجود معضلات زیست محیط ناشی از تجمع آزولا و حجم قابل توجه ضایعات به جا مانده از کشت بادام زمینی ارائه راهکاری برای استفاده مجدد از ضایعات آلی لازم بهنظر میرسد. لذا، این آزمایش جهت بررسی امکان  استفاده از کمپو More

            بدلیل وجود معضلات زیست محیط ناشی از تجمع آزولا و حجم قابل توجه ضایعات به جا مانده از کشت بادام زمینی ارائه راهکاری برای استفاده مجدد از ضایعات آلی لازم بهنظر میرسد. لذا، این آزمایش جهت بررسی امکان  استفاده از کمپوست پیله بادام زمینی در بستر کشت گلدانی گیاه زینتی بگونیا  رکس به اجرا در آمد. این تحقیق بر پایهی طرح بلوکهای کامل تصادفی با 5 تیمار و با 4 گلدان در هر تیمار و در 3 تکرار 5 انجام شد. گیاهان در بستر پیت و پرلیت (2 به 1 حجم/ حجم) و بسترهایی با که نسبت (25 ، 50 ، 75 و 100 حجم/حجم) کمپوست جایگزین پیت در پیت(P) : پرلیت (Pe) (2 به 1 حجم/ حجم) کشت شدند. تیمار شاهد شامل P: Pe  به تنهایی بدون کمپوست پوسته بادام زمینی بود. نتایج نشان داد که استفاده از کمپوست پوسته بادام زمینی باعث بهبود فاکتورهای رشد بگونیا میشود. بر این اساس، جایگزینی 25% از پوستههای بادام زمینی در اکثر فاکتورهای رشد مانند ارتفاع گیاه (بهترتیب 21/20 سانتیمتر)، تعداد برگ (13/13 درصد)، وزن تر برگ (88/48گرم) ، وزن خشک برگ (بهترتیب 01/2 گرم) و وزن تر ریشه (بهترتیب 37/2 گرم) اثر بهتری در رشد گیاه داشتند. افزایش میزان صدف پوسته بادام زمینی تا100% باعث کاهش معنیدار رشد گیاه نسبت به شاهد میشود. بهنظر میرسد در تیمار 100% کمپوست پوسته بادام زمینی، افزایش شوری (48/1%) در کاهش رشد گیاه مؤثر است. Manuscript profile

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21 - Some Physical Properties of Full-Ripe Banana Fruit (Cavendish variety)
M, Soltani R, Alimardani M, Omid

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22 - Effects of adding silver nanoparticles on thermal conductivity and viscosity of poly-alpha-olefin fluid
حمیدرضا قربانی سید کمیل حسینی اسفندانی

In this work, the silver nanoparticles effects on viscosity and thermal conductivity of silver-poly alpha olefin nanofluid were studied. Silver nanoparticles in different sizes and with various concentrations spread over the base fluid of poly alpha olefin and thermal c More

In this work, the silver nanoparticles effects on viscosity and thermal conductivity of silver-poly alpha olefin nanofluid were studied. Silver nanoparticles in different sizes and with various concentrations spread over the base fluid of poly alpha olefin and thermal conductivity were studied. Also, thermal conductivity was measured at different temperature conditions. In addition, the impact of nanoparticles on the viscosity of the fluid was measured at different concentrations. The thermal conductivity and viscosity of nanofluids increase with increasing volumetric concentration of silver nanoparticles. In addition, the thermal conductivity of nanofluid increases and the viscosity of nanofluid decreases with increasing temperature. Also, the thermal conductivity decreases with increasing nanoparticles size. Manuscript profile

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23 - Legume-Grass Ratio and some Soil Properties in Four Vegetation Types in Steppe Rangelands of Iran (Case study: Peshert Rangelands in Chahardangeh Sari, Iran)
Nahid Jabbari Ghasem Ali Dianati Tilaki Hassan Ghelichnia

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24 - Assessment of the Effects of Overgrazing on the Soil Physical Characteristic and Vegetation Cover Changes in Rangelands of Hosainabad in Kurdistan Province, Iran
H. Azarnivand A. Farajollahi E. Bandak H. Pouzesh

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25 - Grazing Response of Topsoil Characteristics in Temperate Rangelands of Kashmir, Himalaya
T. H. Jaweed P. G. Saptarshi S. W. Gaikwad

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26 - Nutritional Value and Physical Properties of Syrian Pine Nuts
Hamza Radhi Shad Emad Mahmood Al-Mualm Saif A. J. Al-Shalah Talib Kh. Hussein Ghadaa Tarak Zedian Khattab Fawwaz

10.22034/jon.2022.1968627.1199

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27 - Synthesis of New Glycine Cephalexin Condensed Polymer as Peptide Biopolymer for Controlled Release of Cephalexin
Aseel K.Al-Saffar Ahamed M. Abbas Dawood Salman

10.22034/jchr.2021.685036

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28 - Reviewing the effect of oxidizing sintering aids on sinterability behavior of boron carbide composites (B4C)
Mehdi Shakori Mina Saeeidi heidari Hamidreza Baharvandi

Boron carbide because of properties such as high hardness, high Young's modulus and low density is highly regarded, however due to difficulties in sintering ability, low fracture toughness and low oxidation resistance at temperatures greater than 1000 ° C, its appli More

Boron carbide because of properties such as high hardness, high Young's modulus and low density is highly regarded, however due to difficulties in sintering ability, low fracture toughness and low oxidation resistance at temperatures greater than 1000 ° C, its application is limited relatively. Obtaining a high-density boron carbide by conventional methods is very difficult and costly because of the high melting point, covalently bonded, its low self-diffusion and high vapor pressure. Many of researches have been done to improve the sintering condition by different methods and using various kinds of sintering aids. It is often observed that small amounts of oxides have been more effective on sintering improvement of non-oxidizing ceramics. In this paper, the effect of different oxidizing sintering aids has been reported on sintering behavior and mechanical properties of boron carbide. Manuscript profile

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