Heat Transfer Performance Improvement in the Split Units in Humid Environment through Drain Water Circulation

The only way to ease extremely hot days during the summer is to resort to cooling systems to feel comfort. This idea brings an end to failure in cooling process to hot summer days, energy saving, and lets you rest. By recycling the water drained from the indoor unit through simple distributor fixed on the outdoor unit. There is two advantages due to rapid vaporization of the compensating draining by fan during hot air of weather: avoid the corrosion due to using the drain water in the cooling process, and get rid and consumption of the draining water to avoid any problem where place drained. The drain water is almost high purity (TDS < 50 ppm), and dust-free by filters of indoor unit lead to no salts accumulation, and reduce probability of fins corrosion of outdoor heat exchanger in salt medium. Experimental results indicate that the increasing of the heat transfer is obtained by using low temperature water, which ranging (5-15 oC) and the decreasing depend upon the hot air (30-55 oC), over the temperature during the summer in Iraq as well as the difference values in heat capacities between air and water. Applying this idea will result in power consumption reduction by the range (1 – more than 4 Amperes)

Status of Rural Women: Patriarchy and Inevitability of Subjugation; A Study of Rural Area in Multan, Pakistan

Women are oppressed in every walk of life but oppression may differ from place to place. Urban Rural divide has shown the different social structures for women. The present research was conducted with these objectives: to identify the status of women in rural settings, to analysis perception of society about social status of women, to explore the impact of Patriarchy on women in context of rural settings of Multan, Pakistan. Mix research methods were used to carry this research. Interviews were conducted from 100 married women, living in rural areas of Multan. A Focus Group Discussion was also conducted to address the research questions. The findings of the study suggest that women’s health, education and economic status is poor, whereas women’s status stems from patriarchy, the power and controlling structure where men dominates over women. This is patriarchy which maintains the women’s submissive role and it generates a structure which subjugates women of rural area. The study suggests that by expanding the canvas of formal economy, it may channelize the women’s low paid or unpaid work. This can help enhance women’s economic and social status in rural areas. Key Words: Patriarchy, Status of Women, Rural Women, Gender Inequalit

Nano ZnO Catalyst for Chemical Recycling of Polyethylene terephthalate (PET)

This paper is focused firstly on production of monomers bis (2-hydroxyethyl) terephthalate (BHET) and oligomers by using Nano zinc oxide with different particle size (55&94) nm with different weight ratio (0.05, 0.15 and 0.5) by using chemical recycling glass condenser at 190˚C. The second purpose is to study the effect of catalyst ratio, time of reaction and yield of products of the product. Elemental analysis for Carbon –Hydrogen and Nitrogen (CHN), differential scanning calorimetry (DSC), infrared spectroscopy (FTIR) and thermogravimetric analysis (TGA) have been investigated. Results indicated the catalytic activity was found to correlate with surface area; however, Nano ZnO (55) nm has shown an exceptional activity, still it is higher than Nano ZnO (94) nm in order to reduce the reaction time until 60 minutes instead of 7 hours without catalyst. The analysis of the thermograms has indicated the presence of various kinds of monomer, dimer and oligomers that are formed during the recycling; this is particularly evident due to new peaks indicating the formation of BHET monomer and oligomer of lower molecular masses

A Novel Road Segmentation Technique from Orthophotos Using Deep Convolutional Autoencoders

This paper presents a deep learning-based road segmentation framework from very high resolution orthophotos.The proposed method usesDeep Convolutional Autoencoders for end-to-end mapping of orthophotos to road segmentations. In addition, a set of post-processing steps were applied to make the model outputs GIS-ready data that could be useful for various applications. The optimization of the model’s parameters is explained whichwas conducted via grid search method.The modelwas trained and implemented in Keras, a high-level deep learning framework run on top of Tensorflow. The results show thatthe proposed model with the best-obtained hyperparameters could segment road objects from orthophotos at an average accuracy of 88.5%. The results of optimization revealed that the best optimization algorithm and activation function for the studied task are Stochastic Gradient Descent (SGD) and Exponential Linear Unit (ELU), respectively. In addition,the best numbers of convolutional filters were found to be 8 for the first and second layers and 128 for the third and fourth layers of the proposed network architecture. Moreover, the analysis on the time complexity of the model showed that the model could be trained in 4 hours and 50 minutes on 1024 high-resolution images of size 106 × 106 pixels, and segment road objects from similar size and resolution images in around 14 minutes.The results show that the deep learning models such as Convolutional Autoencoders could be a best alternative to traditional machine learning models for road segmentation from aerial photographs

Arteriovenous fistula: a rare complication of distal radial access for coronary angiography

Distal radial access is an emerging alternative approach for coronary angiography, preferred for its reduced complications and time to haemostasis, and improvement of patient and operator comfort. Arteriovenous fistula formation is a very rare complication following this approach, which requires recognition but which can be managed conservatively in certain instances

Studying of (Chemical ,Physical ,Biological) –Applications of Oxo- Sulfur Derivatives

In previously  work of our  paper , we synthesized several organic   compound , but  in this  paper  we  will  study  some  chemical  applications like (  DSC – Analysis , Solubility in different solvents , chromatography behavior ) for some compounds  and   biological  applications against  three type of bacteria  and  two  types  of  fungi  towards some  compound [1- 10 ]. Keywords: application  , behavior

Thermal and Catalytic Pyrolysis of Plastic Waste: Catalysts Characterization and Properties of the Liquid Products

Nowadays, sustainable energies can be found by thermal and catalytic pyrolysis of plastic waste. This study uses high-density polyethylene (HDPE), low-density polyethylene (LDPE), polypropylene (PP), polystyrene (PS), and polyethylene terephthalate (PET) to investigate thermal and catalytic pyrolysis using a stainless-steel semi-batch reactor at different conditions: Temperatures (350 - 500°C) and residence times (60, 90, and 120 min). The catalysts were undergone to different characterization techniques such as EDX, SEM, and BET that revealed the PR.9 catalyst consists of Cobalt, Molybdenum, and Platinum loaded on Al2O3. Whereas, the chemical compositions of Platinum RG-412 catalyst contain Chlorine and Platinum. The SEM analysis showed that the PR.9 catalyst is more active than RG-412 for the degradation of plastics. In addition, the properties of the liquid products like density, API, and viscosity were studied. As a result, the properties of the liquid produced by the plastic pyrolysis were similar that those produced from the petroleum refineries. The API findings declared that almost all of the liquids produced were light products, which contain mainly diesel oil, gas oil, kerosene, and gasoline