Convective-radiative magnetized dissipative nanofluid (CNTs-water) transport in porous media, using Darcy–Brinkman–Forchheimer model

The main objective of this investigation is to deliberate the novel analysis of buoyancy-driven nanofluid flow across a vertical stretching surface embedded in a porous medium with the consideration of an inclined magnetic field and heating effects caused by viscosity, thermal radiations, and heat source factor. A material made of glass ball is applied as the porous medium. Water is regarded as a base fluid, while carbon nanotubes are termed as the nanoparticles. The governing equations are formulated by employing fundamental laws. With the application of appropriate non-similar transformations, the emerging flow system is translated into dimensionless differential form. The obtained coupled, non-similar system of nonlinear partial differential equations (PDEs) is tackled by employing local non-similarity technique up to second level of iterations in conjunction with the Lobatto III technique in MATLAB. According to the findings, increasing the Hartmann number diminishes fluid velocity while augmentation in radiation parameter and nanoparticle volume fraction raises the temperature profile. Moreover, nanofluids contain MWCNTs as such nanoparticles exhibit larger estimations of Nusselt number than SWCNTs-water nanofluid. Authors introduced appropriate transformations for considered problem and argued the local non-similarity approach for simulating the dimensionless structure. To the best of authors' observations, no such study is yet published in literature

Clinicopathologic Spectrum of Nephrotic Syndrome in the Elderly

The elderly population is affected by a wide range of kidney diseases like young adult patients. However, their clinical course and morphological manifestations are affected by aging. Recognition, diagnosis, and management of glomerular disease in elderly persons have several unique challenges. We aimed to study the clinicopathologic spectrum of elderly patients with nephrotic syndrome (NS). In this retrospective study, we looked at 234 patients of adult NS who were biopsied during the last 5 years. Among them, 31 patients were above the age of 60 years (Elderly). Mean age in elderly patients was 67.48 ± 6.11 years, with age range from 60 to 86 years. Elderly NS patients constituted 13.2% of total adult NS patients. Nineteen patients (61.2%) were males and 12 (38.7%) were females. Hematuria was observed in 19% and hypertension in 48% patients. Mean serum albumin was 2.79 ± 0.39 g/dl and mean 24 h urinary protein was 3.77 ± 0.8 grams. Membranous nephropathy (MN) followed by minimal change disease (MCD) was the most common diagnosis. No major complication with biopsy was reported in our study as has been the case with most studies

Естественная конвекция наножидкости вдоль вертикальной растягивающейся поверхности в пористой среде Дарси-Бринкмана

В настоящей работе проводится моделирование естественной конвекции наножидкости вдоль нагреваемой растягивающейся поверхности, расположенной в пористой среде. Для описания транспортных процессов в пористой среде используется модель Дарси-Бринкмана, совместно с приближением Буссинеска для моделирования влияния выталкивающей силы. Исследования проводятся как на основе полных уравнений Обербека-Буссинеска, так и с использованием приближения пограничного слоя. Для реализации задачи, сформулированной в рамках приближения пограничного слоя, применяется метод локальной неавтомодельности. Полученные результаты отражают возможности использования различных подходов для моделирования свободно-конвективного течения вблизи вертикальной поверхности

Experimental Investigation of Isobaric specific heat capacity (Cp) of 9-ethylcarbazole in liquid and solid state

Liquid organic hydrides, e.g. 9-ethylcarbazole, are potentially interesting hydrogen storage materials becauseof their reversible hydrogen sorption properties. In this study, the isobaric specific heat capacity of 9-ethylcarbazole in solid and liquid phases was investigated using adiabatic calorimeter. The experimentalsetup consisting of two basic components adiabatic calorimeter and pressure unit was developed. To calibratethe apparatus the specific heat of the water was measured. The experimental data points were obtained at 0.1MPa to 0.88 MPa pressure range and 353 K to 480 K temperature range. The specific heat dependence onpressure and temperature was presented. The increase in specific heat of 9-ethylcarbazole was observed withincreasing pressure and temperature for solid phase, while for liquid phase decrease in trend was observed forincreasing pressure.Keywords: 9-ethylcarbazole, Adiabatic Calorimeter, Specific Heat, Nitrogen Gas Cylinde

The analysis of performance before and after ERP implementation: a case of a manufacturing company

[EN] Machines and technology have been known for saving the efforts and so the time of the human race. Thus in the gravity of consideration to this point, companies are required to innovate their process and practices to improve productivity. The present research was conducted at ABC manufacturing company having three departments i.e. A, B, and C. The significant impact after ERP implementation in terms of time-saving has been reflected in the present research. The nature of working and nature of manufacturing is different in all the departments; that`s why each department has its business development team. The case company has implemented an industrial and financial system (IFS) in 2020 and the whole process is properly followed in IFS. In this study, the process flow of documents and time consumption on each step of obtaining approvals from various authorities is covered, and saved time after the implementation of IFS is also revealed in detail. Results indicated that, after the implementation of IFS, the company has saved 48272.5 hours in 2021 by carryingout the whole process on IFS instead of a manual approach. None of the research highlights the magnitude and percentage of saved time after the implementation of an IFS in the manufacturing industry; The present research can be the basis of motivation for any manufacturing to implement IFS.Kalwar, MA.; Khan, MA.; Phul, Z.; Wadho, MH.; Shahzad, MF.; Marri, HB. (2022). The analysis of performance before and after ERP implementation: a case of a manufacturing company. Journal of Applied Research in Technology & Engineering. 3(2):115-121. https://doi.org/10.4995/jarte.2022.17789OJS1151213

Evaluation of Quality during Construction Projects: A Case Study of Pakistan

Achieving and maintaining quality values are indispensable for attaining organizational and customer satisfaction. This research investigates different aspects of operationalize quality culture and factors affecting the quality of building construction in under developed countries like Pakistan. A qualitative and quantitative survey was circulated among different stakeholders including Clients, Consultants and Contractors to assess the level of the contractor’s performance, the project monitoring and controlling techniques, proper health and safety requirements, client satisfaction and workers experience in construction industry projects. The practice of professional quality management in building projects is increasing, however, many flaws and negligence are still found in local practices. This analysis also indicates that political and socio-economic factors play a significant role in maintaining the quality level in local industry. Therefore, the allocation of sufficient resources, proper training of workers, and recruitment of quality control staff and the use of advanced technologies are recommended for proper implementation of QMS (Quality Management System)

Fabrication of low-cost and environmental-friendly EHD printable thin film nanocomposite triboelectric nanogenerator using household recyclable materials

Humans generate massive amounts of plastic and electronic waste, which pollute our environment, particularly our water supplies, and cause fatal difficulties. In addition, the increased use of fossil fuels is wreaking havoc on the ecosystem. In order to solve these issues, we describe a simple, low-cost, and environmentally-friendly triboelectric nanogenerator (TENG) made of electronic waste and recycled plastic, and we add nanomaterial to improve power generation using biomechanical energy. The present investigation involves synthesizing carbon dots (CDs) nano-material through a single-step hydrothermal technique and CDs nano-material characterized via UV.Vis Spectroscopy. The proposed carbon dot-graphite nano composite-based TENGs (CGC-TENGs) are created by reusing dry cells (electronic waste) to obtain graphite, plastic bottles to obtain plastic, and synthesized CDs. CGC-TENGs manufactures a simple, low-cost, and environmentally friendly In-house quick and bulk fabrication printed electro hydrodynamics (EHD) electrospray process that uses less solvent and does not require specialist equipment or knowledge. Comparing fabricate TENG device results, in which CDs used produced high voltage (127.31 V)/current (107.12 μA), while not using CDs produced low voltage (95.23 V)/current (104.12 μA) at similar fabrication parameters, the size of the devices are 4.5 cm × 7 cm, and 15 N force applied. The CGC-TENG (δ) has maximum output performance and is thoroughly investigated using an open-circuit voltage of 171.30 V, a short circuit current of 111.39 μA, and a maximum output power density of 53.08 μW/cm2. CGC-TENG (δ) was used to power an electronic glucose monitoring device, and twenty-three blue light-emitting diodes (LEDs) to demonstrate its practical applications. The approach we propose produces renewable energy sources by reutilizing plastic waste and technological waste, providing a practical and sustainable path toward our goal of creating a green planet

Disasters and Their Effects on Child Development

The special section's papers collectively paint a picture of where disaster and development in children and adolescents research is at. The articles' diversity is impressive; they cover a wide range of crisis circumstances, such as war and the use of child soldiers, terrorism and political unrest, hurricanes and tsunamis, earthquakes and floods, as well as political unrest and climatic change. There are representations of specific calamities that happened in nine different nations. The articles cover a wide range of ages, from very young children through adolescents. In this field of study, longitudinal research and studies that focus on developmental processes are still uncommon. Although a few articles discuss additional levels of analysis, such as biological function and relationships, the majority of the articles concentrate on a behavioral level of function and analysi

BONE MARROW EXAMINATION IN VISCERAL LEISHMANIASES; A STUDY IN A TERTIARY CARE HOSPITAL.

Background: Visceral Leishmaniasis a vector borne parasitic disease is endemic in many parts of the world. It is a chronic febrile ailment caused by Leishmania Donovani (LD). More than three hundred million people living in the endemic areas are at high risk and fourteen million are living with the disease. The leishmaniasis is not endemic but sporadic in our state. Methods: This study was conducted over a period of 10 years in the department of Pathology and haematology, SKIMS Soura, focusing on the morphology of bone marrow aspirate and biopsy obtained from patients. The aspirate was smeared on glass slides, fixed with alcohol and stained with Giemsa stain. Bone marrow biopsy was fixed in formalin and stained with H&E Results : In our study we had total no of 9 patients as the disease is sporadic in our state.Male to female ratio was 2:1 with age range from 1 year old to 19 year old .and mean age of 10 years . Conclusion: Bone marrow aspiration and biopsy, although an invasive procedure, gives direct microscopic diagnosis of visceral Leishmaniasis and may be considered where indicated

Simulation-based post-fault analysis in WECS using DFIG systems under an unbalanced fault scenario

Fault analysis in an integrated Wind Energy Conversion System (WECS) is the highest priority factor to be taken into account for distributed generation (DG). The contribution of renewable energies (like solar and wind) to the power system is increasing continuously. New challenges are being faced while integrating such systems because of the no inertial response provided by renewable resources. So, for a reliable integration further exploration, development, and even new strategies are needed to improve the reliability, power quality, control and protection of renewable energy generation. Disintegration in distributed generation is still a huge question mark on the reliability of modern power systems. Disintegration has many causes and faults are one of them, that cause severe voltage profile distortions, which makes WECS a complex system in terms of control and protection of power system. In this work, focus has been paid to the analysis of asymmetrical faults in wind farms and their impacts are evaluated on the overall generation system. A 30 MW wind power plant has been developed in MATLAB to study the faults. Since wind farms are Low Voltage (LV) networks, therefore, fault impedance method (IEC 60909) and the Fort-cue Method have been used for the fault analysis. The fault current response and behaviour of the DG system under asymmetrical fault conditions at different locations in and around the wind farm have been obtained. It is found that fault loop impendence, transformer grounding type, and fault location largely affect the dynamic behaviour of the co-generation system under asymmetrical faults. In this work dynamic behaviour of the wind generation system has been analysed for the different asymmetrical faults induced at different locations of the system. The response of the wind generator has been evaluated based on the different fault simulations considering the sequence component method