The effect of Levo and Trigard pesticides on the life of potato moth insect Phthorimaea Operculella (Zeller)=Влияние пестицидов Levo и Trigard на смертность картофельной моли Phthorimaea Operculella (Zeller)

The study was conducated in the laboratories of the Department of biogenic control techniques/Technical College/Al-Mussaib for the period from 2015-2016, different concentrations of Levo and Trigar

Characterizing Cold Bituminous Emulsion Mixtures Comprised of Palm Leaf Ash

Abstract Cold bitumen emulsion mixtures (CBEMs) are a promising substitute for hot mix asphalt (HMA) due to their low environmental impact, cost effectiveness, and low energy production costs. Nevertheless, conventional CBEM has some disadvantages, mainly related to the long curing time required to reach its full strength and its higher susceptibility to moisture. This paper reports the experimental test results of research that aimed to investigate and develop a new CBEM containing a waste biomass material, palm leaf ash (PLA), a waste material produced by burning palm leaves. The new CBEM was compared with a conventional cold mix (CCM) as a control. The tests to assess the mixtures’ mechanical properties were the Marshall test, indirect tensile strength, and wheel track test. Durability was evaluated by water sensitivity and aging tests. The results revealed noticeable improvements in the mechanical properties of the CBEMs comprising ordinary portland cement (OPC), and raised the possibility of replacing some of the OPC with PLA without compromising said improvements. Results have shown that the new CBEMs with PLA achieved outstanding results in comparison with traditional CBEM, with and without the addition of OPC. There was also a significant improvement in water sensitivity when using PLA. This paper therefore opens the door for the development of new CBEMs that have outstanding mechanical characteristics when made with biomass ash material

The effect of Levo and Trigard pesticides on the life of potato moth insect Phthorimaea Operculella (Zeller)=Влияние пестицидов Levo и Trigard на смертность картофельной моли Phthorimaea Operculella (Zeller)

The study was conducated in the laboratories of the Department of biogenic control techniques/Technical College/Al-Mussaib for the period from 2015-2016, different concentrations of Levo and Trigar

Corrosion control of Buried Low Carbon Steel Structure by Using Alteration Medias method

The aim of the present work is to control of metal buried corrosion by alteration the media method. This method depended on the characteristics of each media. The corrosion rates in different media (soil, sand, porcelanite stone and gravel) for specimens of low carbon steel were measured by two methods weight loss method and polarization method, weight loss measured by buried specimens in these medias separately for 90 days. The polarization method includes preparing of specimen and salt solutions have electrical resistivity equivalent electrical resistivity of these media. The corrosion rate of two method results in (soil > sand> porcelainte stone> gravel). The lower corrosion rate happened in gravel media because of characteristics of high electrical resistivity and lower porosity for gravel while the higher corrosion rate occurred in the soil

Fatty Acid Synthase Polymorphism of Awassi Sheep and its Impact on Fatty Acid Composition

Livestock intramuscular fat content is determined by fatty acid synthase (FASN).  The fatty acid profile of the fat is of relevance to human health.  Thus, this study explores the relationship between the polymorphism of the FASN gene in Awassi sheep and its impact on fatty acid composition.  The study used 100 Awassi rams, ranging in age from 1 to 2.5 years.  Molecular DNA was isolated from each blood sample; genotyping, sequencing reactions, and in silico tools were subsequently used to confirm the variants in amplified fragments.  The results revealed two genotypes (GG and GA) of the ovine FASN gene (exon 2).  The novel missense c.186 GA was identified in the genotype GA.  The GA genotype had significantly (P0.05) increased intramuscular fat, higher unsaturated fatty acid content, and lower saturated fatty acid content than the GG genotype.  Cumulative in silico analysis indicated a detrimental effect of the SNP c.186 GA on FASN activity.  The intramuscular GA genotype of Awassi sheep had a low saturated content relative to unsaturated fats.  The result confirmed that the c.186 GA SNP in ovine FASN gene variation is potentially helpful in assessing carcass traits, and this might lead to a more efficient selection of animals with healthier fatty acid profiles, resulting in higher-quality meat

Thermal stability of melt-blended poly (lactic acid) (PLA)/polyamide 66 (PA66)/graphene nanoplatelets (GnP)

In recent times the blending of different biodegradable materials to produce nanocomposites with improved properties has been a significant point of discourse by many researchers. This study reports a melt blend of poly (lactic acid) (PLA), polyamide (Nylon 66) and graphene nanoplatelets (GnP). The thermal stability and chemical functional characteristics of the nanocomposites produced were succinctly investigated using thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) and Fourier transform infrared (FTIR). The blending was carried out by using a twin-screw extruder at a revolution speed and time of 50 rpm and 20 minutes, respectively. The composition of GnP in the PLA/PA66 was varied from 0 – 5 wt.%. The results showed that the increased of the GnP concentrations improved the thermal stability of the nanocomposites. It was also observed that a strong interaction between the polymeric materials as demonstrated by the FTIR analysis. The use of a low concentration of graphene in PLA/PA66 blend has been demonstrated to improve the thermal stability of the nanocomposites

Thermal stability of melt-blended poly (lactic acid) (PLA)/polyamide 66 (PA66)/graphene nanoplatelets (GnP)

In recent times the blending of different biodegradable materials to produce nanocomposites with improved properties has been a significant point of discourse by many researchers. This study reports a melt blend of poly (lactic acid) (PLA), polyamide (Nylon 66) and graphene nanoplatelets (GnP). The thermal stability and chemical functional characteristics of the nanocomposites produced were succinctly investigated using thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) and Fourier transform infrared (FTIR). The blending was carried out by using a twin-screw extruder at a revolution speed and time of 50 rpm and 20 minutes, respectively. The composition of GnP in the PLA/PA66 was varied from 0 – 5 wt.%. The results showed that the increased of the GnP concentrations improved the thermal stability of the nanocomposites. It was also observed that a strong interaction between the polymeric materials as demonstrated by the FTIR analysis. The use of a low concentration of graphene in PLA/PA66 blend has been demonstrated to improve the thermal stability of the nanocomposites