Akash Kumar
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View article: Temperature Difference and Gradience in PV Arrays: Impact of Array Height and Array Length
Temperature Difference and Gradience in PV Arrays: Impact of Array Height and Array Length Open
This study investigates the influence of array height, irradiance, and wind speed on temperature difference and thermal gradients in photovoltaic (PV) arrays operating in hot, arid conditions. A field experiment was conducted in Mesa, Ariz…
View article: Measurement of excitation function in the 16O + 107Ag system at energies above the Coulomb barrier
Measurement of excitation function in the 16O + 107Ag system at energies above the Coulomb barrier Open
The decay mechanism of the highly excited compound nucleus 123Cs populated via fusion evaporation reaction of 16O and 107Ag is studied. De-excitation of the compound nucleus via evaporation of p, n, and α particles leads to a population of…
View article: Electrical Impedance Spectroscopy: A Complementary Approach Differentiating PID Mechanisms in Photovoltaics
Electrical Impedance Spectroscopy: A Complementary Approach Differentiating PID Mechanisms in Photovoltaics Open
Potential-induced degradation (PID) presents a critical reliability issue for solar photovoltaic (PV) modules, with three primary types identified in the literature, namely, PIDs (shunting type), PIDp (polarization type), and PIDc (corrosi…
View article: DOTAP Modified Formulations of Aminoacid Based Cationic Liposomes for Improved Gene Delivery and Cell Viability
DOTAP Modified Formulations of Aminoacid Based Cationic Liposomes for Improved Gene Delivery and Cell Viability Open
The liposomal systems proved remarkably useful for the delivery of genetic materials but enhancing their efficacy remains a significant challenge. While structural alterations could result in the discovery of more effective transfecting li…
View article: Novel Selective Maintenance Approach to Ensure Mission Reliability of Armored Vehicles Considering Multiple Deployment Roles in Distinct Operating Profiles
Novel Selective Maintenance Approach to Ensure Mission Reliability of Armored Vehicles Considering Multiple Deployment Roles in Distinct Operating Profiles Open
Given the gravity of the element of surprise in modern warfare, military forces worldwide are constantly attempting to achieve and maintain operational readiness of their critical military equipment. Selective Maintenance (SM) is considere…
View article: Examining Light-Induced Degradation with Combined-Accelerated Stress Testing
Examining Light-Induced Degradation with Combined-Accelerated Stress Testing Open
While further understanding is sought, the results suggest that a module can show no degradation in performance through a qualification test light soak, (IEC 61215: 2021 MQT 19.1 requirement of 10 kW minimum on one side). Yet, such cells m…
View article: Study of Zener Diode and its Application
Study of Zener Diode and its Application Open
Zener diodes are a type of semiconductor device that exhibits unique characteristics when operated in reverse-biased mode. This abstract aims to provide an overview of the key characteristics and properties of zener diodes. Zener diode…
View article: Comparative Analysis of Hotspot Stress Endurance in Pristine and Thermal Cycled Prestressed Glass–Glass Photovoltaic Modules
Comparative Analysis of Hotspot Stress Endurance in Pristine and Thermal Cycled Prestressed Glass–Glass Photovoltaic Modules Open
Hotspots pose a significant long-term reliability challenge in photovoltaic (PV) modules that can have a detrimental impact on the efficiency, safety, and financial viability of a PV system. This paper aims to evaluate the endurance of hot…
View article: Potential induced degradation in c-Si glass-glass modules after extended damp heat stress
Potential induced degradation in c-Si glass-glass modules after extended damp heat stress Open
View article: Evaluation of Bifacial Modules and PV Technologies with Combined-Accelerated Stress Testing
Evaluation of Bifacial Modules and PV Technologies with Combined-Accelerated Stress Testing Open
In view of the increasing interest and market share of bifacial cells and modules, suitable substrates such as glass and transparent backsheets along with ethylene vinyl acetate (EVA) and polyolefin elastomer (POE) encapsulants were examin…
View article: Hotspot testing of glass/backsheet and glass/glass PV modules pre-stressed in extended thermal cycling
Hotspot testing of glass/backsheet and glass/glass PV modules pre-stressed in extended thermal cycling Open
View article: Reliability Evaluation of Bifacial and Monofacial Glass/Glass Modules with EVA and non-EVA Encapsulants
Reliability Evaluation of Bifacial and Monofacial Glass/Glass Modules with EVA and non-EVA Encapsulants Open
The market share for bifacial modules is projected to be doubled from 30% to 60% in the next ten years. For the monofacial crystalline silicon glass/backsheet (G/B) modules, extensive reliability data has been available for over 40 years. …
View article: Evaluation of bifacial module technologies with combined‐accelerated stress testing
Evaluation of bifacial module technologies with combined‐accelerated stress testing Open
In view of the increasing interest and market share of bifacial cells and modules, suitable substrates such as glass and transparent backsheets along with ethylene vinyl acetate (EVA) and polyolefin elastomer (POE) encapsulants were examin…
View article: Field Reliability of Glass/Glass Modules
Field Reliability of Glass/Glass Modules Open
A review of literature indicates that there will be a 20% increase in utilization of glass/glass PV modules by 2023. Common degradation modes reported in literature of glass/glass modules are: Encapsulant delamination, Encapsulant browning…
View article: Extended Accelerated Stress Testing (EAST) of Glass/Glass, Glass/Backsheet and Glass/Transparent Backsheet PV Modules: Influence of EVA and POE Encapsulants
Extended Accelerated Stress Testing (EAST) of Glass/Glass, Glass/Backsheet and Glass/Transparent Backsheet PV Modules: Influence of EVA and POE Encapsulants Open
This paper presents the indoor extended accelerated stress testing (EAST) results of glass/glass (GG), glass/backsheet (GB) and glass/transparent backsheet (GT) modules having identical cells and two different encapsulant types, ethyl-viny…
View article: Potential Induced Degradation in C-Si Glass-Glass Modules after Extended Damp Heat Stress
Potential Induced Degradation in C-Si Glass-Glass Modules after Extended Damp Heat Stress Open
View article: Field Accelerated Stress Testing (FAST): Forecasting Plant-specific Failure Modes and Degradation Rates
Field Accelerated Stress Testing (FAST): Forecasting Plant-specific Failure Modes and Degradation Rates Open
Photovoltaic plant owners and insurance companies would like to be prepared for the forthcoming material warranty claims (material defects) and power warranty claims (degradation rate). To address the needs of these stakeholders, this pres…
View article: A quantum‐based diagnostics approach for additive manufacturing machine
A quantum‐based diagnostics approach for additive manufacturing machine Open
Current Additive Manufacturing machines have limited techniques to observe process conditions and to decrease process errors. In order to overcome these limitations and increase the level and accuracy of machine intelligence, machine condi…
View article: Reliability Analysis of Field-aged Glass/Glass PV Modules: Influence of Different Encapsulant Types
Reliability Analysis of Field-aged Glass/Glass PV Modules: Influence of Different Encapsulant Types Open
This paper presents a preliminary reliability analysis of field-aged glass/glass (G/G) PV modules. Several characterization tests were performed on more than 60 modules with two different encapsulant types (EVA and ionomer) exposed in hot-…
View article: Theoretical and Experimental Studies on the Adsorption of N- [(E)-Pyridin-2-ylmethylidene] Aniline, a Schiff Base, on Mild Steel Surface in Acid Media
Theoretical and Experimental Studies on the Adsorption of N- [(E)-Pyridin-2-ylmethylidene] Aniline, a Schiff Base, on Mild Steel Surface in Acid Media Open
The adsorption of N-[(E)-Pyridin-2-ylmethylidene] aniline, a Schiff base, on to mild steel surface in 1M HCl and 0.5M H2SO4 solutions and the consequent corrosion protection were studied employing weight loss method, electrochemical impeda…
View article: Antimetastatic Effect of Bdmc-a- a Curcumin Analog on Hep-2 Cells: A Comparative Study With Curcumin.
Antimetastatic Effect of Bdmc-a- a Curcumin Analog on Hep-2 Cells: A Comparative Study With Curcumin. Open
Laryngeal carcinoma, the most common among head and neck squamous cell carcinoma (HNSCC) accounts for 1% of all cancer deaths. Besides surgery, laryngeal carcinoma could be most effectively treated by chemotherapy, and the widely used drug…
View article: Herbal supplement usage among cancer patients
Herbal supplement usage among cancer patients Open
Background: Herbal supplements (HS) are one of the most commonly used complementary and alternative medicines in cancer. Reduced therapeutic efficacy of prescription anticancer agents through unwarranted herb–drug interactions is a major e…
View article: Characterization of FSO System in the Months of Rainfall in Delhi, India
Characterization of FSO System in the Months of Rainfall in Delhi, India Open
View article: Optimal conceptual design and vision-based control of a fruit harvesting robot
Optimal conceptual design and vision-based control of a fruit harvesting robot Open
The main contribution of this paper is to develop a vision-based control of a robotic arm for the harvesting fruits.The camera fixed in the gripper pad enables to precisely locate the fruit and pluck it from the branch.Rigorous stability a…
View article: Optimal conceptual design and vision-based control of a fruit harvesting robot
Optimal conceptual design and vision-based control of a fruit harvesting robot Open
The main contribution of this paper is to develop a vision-based control of a robotic arm for the harvesting fruits.The camera fixed in the gripper pad enables to precisely locate the fruit and pluck it from the branch.Rigorous stability a…
View article: Investigation on actuation and thermo-mechanical behaviour of Shape Memory Alloy spring using hot water
Investigation on actuation and thermo-mechanical behaviour of Shape Memory Alloy spring using hot water Open
In this paper, hot water is used as an actuation media for Shape memory alloy and its impact on the morphology of structure of Nitinol Shape Memory Alloy (SMA), is presented. With hot water actuation as the temperature reaches 70-80°C, spr…
View article: CCDC 945016: Experimental Crystal Structure Determination
CCDC 945016: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 945015: Experimental Crystal Structure Determination
CCDC 945015: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …