bluuebunny/crossref_metadata_2025 huggingface dataset:
Assessment of multi-dimensional sustainability of vernacular architecture from global perspective: A critical review over the period (2000-2023)
Authors: Majumder Aritra , Debsarkar Anupam
Published: May 2024

Vernacular architecture has been adopted throughout the world considering environmental, socio-cultural and economic contexts specific to geographical regions. Vernacular architecture oriented research has become exceedingly important from the viewpoint of global climate change, accounting for the occurrences of bio-climatic, structural and socio-economic changes. Conventional building materials like steel, cement, bricks are found to consume a significant amount of energy during their production, transportation and installation. A significant shift in construction practice prioritising the usage of sustainable materials, renewable energy and cutting-edge technologies as found in vernacular architecture is required to address the global energy and environmental crises. This study reviews the progress of vernacular architecture related research across the world over the past two decades (2000-2023). It shows an increasing trend in the number of studies, driven by a growing awareness of the importance of preserving traditional construction practices and adapting them to modern needs. Besides, it signifies the need to address the environmental and social challenges of urbanisation and globalisation. This research assesses the structural, bio-climatic and socio-economic aspects of vernacular architecture. The findings can impact the development of sustainable building practices in both rural and urban areas thereby contributing to the development of a more sustainable society.
Enhancing Crude Oil Flow Behaviour in pipelines of North-East India using Bacteria derived from Fish Waste and Sugarcane Bagasse
Authors: Khaklari Gaurav Himanta , Saikia Pranit , Talukdar Prasenjit
Published: May 2024

In this study, methane-producing bacteria were cultivated from fish waste and sugarcane bagasse and then introduced into crude oil samples to enhance their rheological characteristics. Crude oil's complex hydrocarbon composition poses challenges in extraction, transportation and refining due to unpredictable physical traits like high viscosity and pour point. This research pioneers an innovative, sustainable strategy, exploring the potential of methane-producing bacteria to improve crude oil flow. Tests conducted on crude oil samples from the North East India Oil Field involved growing bacteria under specific conditions and meticulously characterizing the oil's basic features. Methane-producing bacteria were then added to various crude oil samples incubated optimally to boost metabolic activity. Employing a rheometer and heat oven, the treated samples underwent thorough examination, measuring viscosity, shear stress, pour point and relevant parameters. Results demonstrated the bacteria's capability to reduce viscosity and shear stress while lowering the oil's pour point, enhancing flow properties, especially at lower temperatures. This study uncovers promising applications in the oil sector, presenting bacteria as an eco-friendly remedy for crude oil viscosity, pour point and shear stress issues, thus offering a sustainable approach to improving crude oil handling and transportation.
GC-MS Analysis of Antlions (Myrmeleon formicarius L.) Ethanol Extract with The Potential to Reduce Staphylococcus aureus Infection Causes Diabetic Ulcers Infection
Authors: Febrianti Riska Ayu , Narulita Erlia , Murdiyah Siti
Published: May 2024

Diabetes in the long term can cause complications. One of them is an ulcer which is an infection on the surface of the patient's skin. Diabetic ulcers are caused by the bacterium Staphylococcus aureus. Treatment of diabetic ulcers uses antibiotics that can inhibit the growth of bacteria. Antlionss is reported to have antibacterial properties such as nerol. The purpose of this study was to analyze the antibacterial compounds of the antlionss (Myrmeleon formicarius L.) extract and to prove the inhibition of the antlionss (Myrmeleon formicarius L.) extract on the growth of Staphylococcus aureus. The method used is GC-MS (Gas Chromatography-Mass Spectrometry) analysis using a set of GC-MS tools to determine the compounds. The results showed that there were antibacterial compounds in the antlionss extract, namely acetic acid, 1,4-diaza-2,5-dioxo-3-isobutyl bicyclo[4.3.0]nonane, 5-oxo proline, piperidine, methyl malonic acid, di-isopropyl acetamide, dimethylpropyl-boroxin, 1,3-dimethyl-2-Imidazolidinone, propyl-propanedioic acid (tert-butyl)dimethylsilyl cyclopropyl ketone, 5-isopropyl-2,4-thiazolidinedione and 2-methyl-1H-benzimidazole and 30% of the extract could inhibit the growth of Staphylococcus aureus bacteria with an average inhibition zone of 20 mm. Based on this study, it was concluded that administration of 30% antlionss extract (Myrmeleon formicarius L.) had a significant effect on the growth of Staphylococcus aureus due to the presence of antibacterial compounds to be used in the development of diabetes mellitus drugs.
Microwave assisted synthesis and Characterization of Silver nanoparticles using Vincetoxicum subramanii and its biological activities
Authors: Vimal Priya S. , Karthika K. , Anitha P. , Muruganantham N. , Govindaraj M.
Published: May 2024

Since silver nanoparticles (AgNPs) are useful in focusing on certain tissues and harmful bacteria, their green manufacture and uses have drawn the attention of several researchers. The aim of this work is to create and analyze silver nanoparticles from Vincetoxicum subramanii completely grown leaves. In this work, stable AgNPs were produced at a concentration of 0.1 mM silver nitrate (AgNO3). The synthesis was verified spectrophotometrically detecting the shift in color from yellow to brown in the solution. These AgNPs were found to be crystalline using an X-Ray Diffraction (XRD) pattern. Transmission Electron Microscope (TEM) was used to characterize AgNPs in order to examine their size and shape. The well diffusion method was used to measure the silver bio-nanoparticles' antimicrobial activity. The technique yields effective antibacterial action against harmful bacteria in the form of Ag NPs. In the fields of nanotechnology and nanomedicine, silver nanoparticles are very important.
Recent advancement in the synthesis of zinc sulphide thin films
Authors: Ho Soonmin
Published: May 2024

This research work has given an overview on the preparation of zinc sulphide thin films on different types of substrates (quartz, soda lime glass, silicon, polyethylene terephthalate film, fluorine-doped tin oxide glass, indium tin oxide coated glass, silica, stainless steel, mica, microscopy glass slide and (100) GaAs substrate) using different types of deposition methods. XRD data showed information about the different phases (cubic, wurtzite and hexagonal) presented in the obtained as-deposited films and annealed samples. Based on optical studies, the band gap was observed in the range of 2.6 eV to 3.87 eV with good absorption coefficient value (105 to 106 cm-1). Experimental results indicated these films could be used in solar cell applications, anti-reflection coating, photocatalysts, photo detector devices and laser-oriented coating applications.
EFFECT OF ORGANIC AND MINERAL FERTILIZERS ON SUNFLOWER CROP PRODUCTIVITY
Authors: Асланов Г.А. , Алиева ГА.
Published: May 2024

По результатам наших исследований можно сделать вывод, что в западном регионе республики на светло-серо-коричневых почвах установлен гранулометрический состав, гигроскопическая влажность, гумус, общий азот, углекислый газ, электропроводность, обмен калия, фосфора ирН. Эти почвы - в основном в верхнем слое (30-40 см), а в нижнем (50-60 см) - по гранулометрическому составу. По мере продвижения к нижним слоям количество водорода, гумуса, общего азота, обмена веществ и калия уменьшилось, диоксид углерода и электропроводность увеличились, рН на верхнем слое составил 7,5, а дно - 6,5. Эти почвы плохо снабжаются питательными веществами, а рН близок к нейтральному. Поскольку растениям подсолнечника требуются питательные вещества, важно вносить в почву необходимое количество органических и минеральных удобрений.

As a result of our research, we can say that, granulometric composition, hygroscopic moisture, humus, total nitrogen, carbon dioxide, electrical conductivity, exchange of potassium, phosphorus andpHare determined in light gray-brown soils (alfisols) in the western region of the Republic. These soils, in terms of granulometric composition, are mainly heavy clay in the upper layer of30-40 cm, and clay in the lower 50-60 cm. As moving on the down layers the amount of hydroscopic humidity, humus, total nitrogen, exchangeable potassium and active phosphorus decreased, the ammount of carbon dioxide and electrical conductivity increased, the pH was 7.5 in the upper layer and 6.5 in the bottom. The table shows that these soils are poorly supplied with nutrients and the pH is close to neutral. As sunflower plants require nutrients, it is important to apply the right amount of organic and mineral fertilizers to these lands.
ГРАНУЛОМЕТРИЧЕСКИЙ И МИНЕРАЛОГИЧЕСКИЙ СОСТАВ БЕРЕГОВЫХ ОТЛОЖЕНИЙ ЮЖНЫХ КУРИЛЬСКИХ ОСТРОВОВ КАК ПОКАЗАТЕЛЬ ДИНАМИКИ БЕРЕГОВ
Authors: Кузнецов М.А. , Болысов С.И.
Published: May 2024

В статье приводятся результаты гранулометрического и минералогического анализа пляжевых отложений 3 ключевых участков Южных Курильских островов. Полученные данные позволили выявить направления перемещения наносов в береговой зоне. Обнаруженные факты вдольберегового перемещения материала в ряде случаев обусловлены господствующими ветрами северо-западного и северного направлений в сезон зимних штормов. Наличие активного вдольберегового перемещения наносов может привести к заносимости причальных сооружений.
ОЦЕНКА РИСКА УЩЕРБА ПОЖАРА ПРИ РАЗГЕРМЕТИЗАЦИИ АВТОЦИСТЕРНЫ С ЛЕТНИМ ДИЗЕЛЬНЫМ ТОПЛИВОМ НА УЧАСТКЕ ДОРОГИ М-5 «УРАЛ» В ПЕНЗЕНСКОЙ ОБЛАСТИ
Authors: Хурнова Л.М. , Мамина Д.Х. , Литвинский Е.В. , Фролова А.А.
Published: May 2024

Проведена оценка риска ущерба пожара в результате разгерметизации и полного опорожнения автоцистерны с летним дизельным топливом при транспортировании на участке автотрассы М- 5 «Урал» с помощью количественного (расчетного) и качественного (матричного) методов. Показано, что при площади разлива дизельного топлива в 35,5м2, исход аварии будет без негативных последствий для людей и инфраструктуры в течение длительного времени при расстоянии от геометрического центра пролива топлива более 10 м. Матричный метод, выполненный с учетом данных Ространснадзора по Пензенской области, определил низкий уровень риска ущерба пожара летнего дизельного топлива при его транспортировании на выделенном участке автотрассы.
Photobiocatalytic CO2 reduction into CO by organic nanorods-carbon monoxide dehydrogenase assemblies: surfactant matters
Authors: Pavliuk Mariia V. , Böhm Maximilian , Wilhelmsen Janna , Land Henrik , Tian Haining
Published: May 2024

Photobiocatalytic CO2 reduction represents an attractive approach for conversion of solar light and abundant resources to value-added chemicals. However, the design of suitable systems requires a detailed understanding of the interaction between artificial photosensitizer and biocatalyst interface. In this work, we investigate the effect of surfactant charge utilized in the preparation of a phenoxazine-based organic molecule nanorods photosensitizer on the interaction with the carbon monoxide dehydrogenase II from Carboxydothermus hydrogenoformans within biohybrid assemblies for photobiocatalytic CO2 reduction into CO. Electrophoretic mobility shift assay in pair with cryogenic electron microscopy (Cryo-EM) and detailed physicochemical characterization are conducted to understand the interaction at the biohybrid interface in order to suggest the strategy for future functionalization of nanoparticles that fulfill the needs from biocatalyst for green fuel production.
New sulfenate sources for double pallado-catalyzed cross-coupling reaction: application in symmetrical biarylsulfoxides synthesis, and evidence of TADF properties.
Authors: Magné Valentin , Cretoiu Iulia , Mallet-Ladeira Sonia , Maerten Eddy , Madec David
Published: May 2024

Tetrahydro-4H-thiopyran-4-one 1-oxide 1 and sulfinyl-di-tert-butylpropionate 2 were reported as sources of bis-sulfenate anion and applied in a double pallado-catalyzed cross-coupling reaction for the synthesis of symmetrical biarylsulfoxides, tolerating a large array of electronic properties and bulkiness. The photophysical properties of a biarylsulfoxide have been explored, demonstrating an unreported TADF phenomenon on sulfoxide-containing scaffolds.
Continuous collective analysis of chemical reactions
Authors: Hu Maowei , Yang Lei , Twarog Nathaniel , Ochoada Jason , Li Yong , Young Brandon , Price Jeanine , McGowan Kevin , Nguyen Theresa , Shi Zhe , Rimmer Mary Ashley , Mercer Shea , Rankovic Zoran , Shelat Anang , Blair Daniel
Published: May 2024

Modularized synthesis of small organic molecules is transforming our capacity to create medicines and materials. Disruptive acceleration of this molecule building strategy will broadly unlock its functional potential and requires integration of many new assembly chemistries. Recent advances in high-throughput chemistry stand to enable selection of appropriate chemical reaction conditions from the vast range of potential options. However, a disconnect between the rates of exploration and evaluation has limited progress. Here we report how intrinsic fragmentation features of chemical building blocks generalizes their analysis to yield sub-second readouts of reaction outcomes. Central to this advance was identifying that groups typically attached to boron, nitrogen, and oxygen atoms fragment in a specific and selective manner by mass spectrometry, enabling target agnostic analysis. Combining these features with acoustic droplet ejection mass spectrometry we could eliminate slow chromatographic steps and continuously evaluate chemical reaction outcomes in multiplexed formats. This allowed rapid assignment of reaction conditions to molecules derived from ultra-high throughput chemical synthesis experiments.
Sr dope rutile-RuO2 for enhanced Proton exchange membrane electrolyzed water
Authors: wu tianyu , wang jinbo , qiu mengyi , jiang yubin , song chi , zheng junyi , chen ru
Published: May 2024

As an OER catalyst under acidic conditions, Ir has a high cost and poor activity. Ru is the most promising Ir substitute due to its lower cost and higher catalytic activity, and the development of Ir substitutes has become an urgent need. Herein, we have designed and prepared Sr-doped RuO2 to achieve an ultra-low overpotential (197 mV@ 10 mA cm-2).In the PEM single cell, a low pool voltage (1.686 V) was achieved at a current density of 1 A cm-2, together with a high stability retention over 400 h of testing. In addition, the catalytic degradation rates (4.63 ng h-1) were significantly lower than those of commercial RuO2, and the activity is attributed to the increased number of Ru3+ active sites and the very small size (5.10 nm). This work provides a new approach for the development of non-Ir-based catalysts with high activity and stability for acidic oxygen precipitation.
Selective oxidative coupling of methane via surface-confined methyl-radical transformation
Authors: Zou Shihui , Wang Junxing , Liu Jian , Zhou Qiuyue , Pan Yang , Yuan Wentao , Hu Jingbo , Wang Yue , Yang Jiuzhong , Wang Yong , Liu Juanjuan , Ma Lu , Du Yonghua , Yang Bo , Fan Jie
Published: May 2024

Directly converting methane into valuable-added chemicals and fuels is a grand challenge in chemistry. Methyl radical (CH3), a highly reactive and short-lived key intermediate, is generally involved in direct-methane-conversion processes, but its reaction is difficult to control, especially at elevated temperatures in the presence of oxygen. The uncontrollable homogeneous transformation of CH3 in oxidative coupling of methane (OCM) places an inherent upper bound on single-pass C2 yield (~ 28%) independent of catalyst, which is the major obstacle for its large-scale utilization. Here we report that surface-confined CH3 coupling represents a general strategy for the design of selective oxidative coupling of methane (SOCM) to perform controllable radical reactions. We show that tungstate sub-nanoclusters, embedded within ZrO2 matrix, can efficiently capture highly reactive CH3 and selectively convert them into C2 products. Experimental results and kinetic modeling unambiguously show that combining catalysts for CH3 generation versus capture can be an effective approach for improving OCM catalyst performance and breaking away from limits imposed by gas-phase kinetics. It achieves C2 yield of >30% at 650 – 700 °C and a world-record single-pass C2 yield (46.3%) far beyond the fundamental upper C2 yield bound at 800 °C. We anticipate that selective oxidative coupling of methane (SOCM) is economically competitive with current oil-based technology for ethylene production.
Outmost Cationic Surface Charge of Layer-by-Layer Films Prevent Endothelial Cells Migration in Three-dimensional Tissues
Authors: Zeng Jinfeng , Heilig Sven , Ryma Matthias , Groll Jürgen , Matsusaki Michiya
Published: May 2024

Tissues and organs possess an organized cellular arrangement that enables their unique functions. However, conventional three-dimensional (3D) encapsulation techniques fail to recapitulate this complexity due to the cell migration during cell culture. In biological tissues, basement membranes (BMs) are essential to mechanically support cellular organization. In this study, we found that positively-charged outmost surface of multilayered nanofilms, fabricated through LbL assembly of poly-L-lysine (PLL) and dextran (Dex) via hydrogen bonds, stimulated the barrier functions of BMs. This type of artificial BMs (A-BMs) demonstrate enhanced barrier properties in comparison to other type ofA-BMs composed of BM component such as collagen type IV and laminin. Such an enhancement is potentially associated with the outmost positive layer, which inhibits the sprouting of endothelial cells (ECs) and effectively prevents EC migration over a 14-day period, aligning with the regeneration timeline of natural BMs in 3D tissues. In the end, 3D organized vascular channels are successfully engineered through the sequential processes of spreading smooth muscle cells (SMCs), in-situ assembly of PLL/Dex nanofilms and endothelialization of ECs, which would provide a reliable platform for evaluating the efficacy of drugs, investigating nanotoxicology, and advancing the development of regenerative medicine.
ELECTRIC VEHICLE CHARGING STATION USING PV MICRO GRID
Authors: Kumar Rahul , Bhattacharya Dr. Ananyo
Published: May 2024

Electric Vehicles are the premier thing for sustainable environment. Charging of these vehicles is one of the main concern that is being faced. This paper shows an electric vehicle charging station using solar micro grid with a battery bank connected for its back up. The idle power the station is supplied to the utility grid with the help of a voltage source inverter with space vector PWM technique. The modelling and simulation of this station is done in MATLAB SIMULINK.
DESIGN OF SERIES RESONANT HALF-BRIDGE INVERTER AND HYBRID CONTROL TECHNIQUE FOR DOMESTIC INDUCTION HEATING SYSTEM USING A TYPHOON HARDWARE-IN-LOOP
Authors: A Kumaraswamy , Das Anamika , Bhattacharya Ananyo , Sadhu Pradip Kumar
Published: May 2024

This paper describes a hybrid control approach for residential induction heating that incorporates pulse density modulation (PDM) and pulse frequency modulation (PFM). With this hybrid control technique, the average output power is controlled with a variable output voltage waveform which results in, reducing switching losses and achieving zero-voltage switching (ZVS). Heating several loads of various materials are frequently required in domestic induction heating. It is difficult to heat both ferromagnetic (FM) and non-ferromagnetic (NFM) materials at the same time due to their unique heating requirements. To address this, this research proposes multiple load half-bridge inverter topology for heating various materials. To fulfill the varied heating requirements of FM and NFM material loads, a hybrid modulation method is adopted. The proposed two-load dual-frequency series resonant converter with hybrid control technique functionality is validated in Power SIM(PSIM) and confirmed in a virtual environment utilizing a Typhoon Hardware-in-loop (HIL) simulation software with HIL402 configuration.
MODELING AND SIMULATION OF BIDIRECTIONAL DC-DC CONVERTER FOR ENERGY STORAGE SYSTEMS
Authors: Baranwal Alok Kumar , Rathore Vishal , Yadav K.B.
Published: May 2024

As the use of renewable energy sources grows in grids, battery energy storage systems become increasingly important for grid stability and reliability. The bidirectional converter can provide battery devices charging and discharging of energy in both directions. This paper presents a bidirectional DC to DC converter for energy storage systems and a proportional and integral controller (PI) for charging and discharging applications. The simulation is carried out in MATLAB/Simulink environment.
MODELING OF STATCOM TO RESOLVE POWER SYSTEM PROBLEM UNDER LINEAR AND NON-LINEAR LOADING CONDITIONS
Authors:   ,, Shit Santu , Kumar Pradeep
Published: May 2024

This paper proposed modeling of STATCOM to resolve power system problems. The STATCOM is a shuntconnected and second generation of static FACTS device that is connected parallel to the power system and it works on the principle of reactive power transfer between the STATCOM and the power system. The power system has several linear and non-linear types of loads. To control the STATCOM, PI control-based park transformations have been adopted. This functionality has been developed to improve active power generation and minimize power loss. This observation has been implemented on different types of loads where the source is 415V and the frequency is 50Hz, the objective is to improve the compensation capability of STATCOM. The proposed work is modeled in the MATLAB /Simulink platform and the system behaviors are verified.
REVIEW PAPER ON POWER QUALITY ISSUES AND ITS MITIGATION TECHNIQUES
Authors: Sekhar Sahu Subhendu , Kumari Pooja , Kumar Niranjan
Published: May 2024

Various power quality issues happening in power system and its mitigation techniques are briefly explained in this paper. There is large demand of power for which the power system needs to be upgraded for the stability and reliability of the power system network, it is necessary for the betterment of power quality. Electric power quality (PQ) is normally used for accessing better power quality at the point of generation, transmission, distribution. Voltage, current and frequency are the main criteria for the estimation of the quality of power. Problems on quality of power can be considered as the difference between the supply power quality and the required power quality for the smooth operation of the system. Some advanced power electronic based Custom Power Devices (CPDs) such as dynamic voltage restorer (DVR) distributed static synchronous compensator (D-STATCOM) and UPQC have been improved as the traditional devices can’t minimize the power quality problems. The aim of this paper is to present the overview of the supply system and detect the problems related to power quality happening in the power system and to study the methods that are present for eliminating this type of problems.
AN EFFECTIVE METHOD FOR PREDICTION OF THE FIELD DISTRIBUTION OF LP11 MODE OF DISPERSION CONTROLLED FIBERS HAVING THIRD ORDER NONLINEARITY
Authors: Kumar Ray Biplab , Majumdar Angshuman , Gangopadhyay Sankar
Published: May 2024

We present the first mode of higher order (LP11) modal field distributions of the dispersion-controlled fibers in the appearance as well as in omission of Kerr class nonlinearity. The research is totally based on a mathematical expression for the field of LP11 mode as prescribed by Chebyshev method. Mathematical solution for the relevant parameters is described. The method of iteration is used for the necessary prediction in existence of said class of nonlinearity. The concerned evaluation using the prescribed formulations requires little computations. But our results were shown to be extremely close to the actual values obtained by a methodology namely finite element. As a result, our simple and precise formalism provides ample scope for analyzing various Kerr class nonlinear dual-mode optical fiber properties.
CURRENT HARMONIC MITIGATION WITH OPTIMIZED MLI-SAPF ON THE DISTRIBUTION SIDE SYSTEMS
Authors: Mahesh Babu B. , Hari Vamsi V. , SrinivasaRao T
Published: May 2024

The usage of nonlinear loads in our day-to-day life is prominently increasing due to nonlinear components in the equipment. In the current work, we are exploring ways to mitigate variations in distributed side utility systems. These are usually caused by presence of nonlinear devices such as switching components, transient operating devices etc. The current variances can be mitigated by a Multi-Level Inverter based shunt active power filter (MLISAPF). The active-reactive power theory (PQ Theory) based current generation scheme is used for reference current generation and hence utilized for gating pulse generation. To enhance the performance the MLISAPF is further optimized with self-tuned/adaptive particle swarm optimization. The simulation result will substantiate the performance of the system.
ANALYSIS OF A STANDALONE PHOTOVOLTAIC-WIND-BATTERY HYBRID RENEWABLE ENERGY SYSTEM FOR AN ENGINEERING DEPARTMENT AND CHARGE ELECTRIC VEHICLES FROM EXCESS GENERATED ELECTRICITY
Authors:   , , ,, Das Madhumita , Mukherjee Subhajit , Mandal Ratan , Halder Asim
Published: May 2024

Researchers have often used the excess energy generated from different hybrid renewable energy systems (HRES) for revenue generation and overlooked serving the excess energy to the society for its upliftment. Therefore, there is a need for a framework that considers the use of excess energy as part of service to the community or society. In this study, a very low load factor Photovoltaic-Wind-Battery HRES is designed for an Engineering Department load using HOMER software, and the excess energy is used to charge the E-rickshaws (TOTO vehicles) commutating around the locality. The HRES is designed considering the site, load requirements, renewable energy sources availability, cost, and lifetime of the components. The hourly and the yearly load demand have been taken into account for the study. Polycrystalline silicon solar panels, horizontal axis wind turbines, and Li-Ion batteries have been considered the main components of the HRES. The objective of this study is the cost, reliability, and feasibility analysis of the HRES along with the utilization of excess energy to charge TOTO vehicles. For the Engineering department load requirement at Haldia, the optimal system with the lowest net present cost (NPC) and cost of energy (COE) is determined. It is found that the combination of 55 kW PV modules, 14 kW wind energy generator, 612 Li-Ion batteries, and 43.4 kW converter is an optimal solution with an initial capital investment of $1,53,733 and NPC of $2,17,152. The excess electricity is dispatched to charge E-rickshaws as a gesture to serve society.
DEVELOPMENT OF NEW MULTILEVEL INVERTER TOPOLOGY
Authors: A. Suryawanshi Sarang , B. Borghate Vijay , Babu Gobburi Hari
Published: May 2024

The use of Multilevel Inverters (MLI) is increasing day by day and becoming more popular for domestic and industrial (especially high voltage) applications. MLI gives various advantages as compared to conventional inverters such as output with comparatively fewer harmonics, less device rating, and many more. This paper presents the new topology of multilevel inverter (MLI) with the advantage of reduced switching device count, DC voltage sources, and reduced carrier signal requirement (half of that of conventional MLI topologies). The basic unit of topology with unidirectional and bidirectional switches produces the positive voltages and then using conventional H-bridge negative voltage levels are produced (Reversing-voltage). The basic unit of this topology produces a minimum of 7 levels and a maximum of 27 levels with 3 voltage sources with multicarrier sinusoidal pulse width modulation (SPWM). For low level, it has redundant switching states which are used for keeping voltage balanced. The computation of the proposed topology is done with the computer simulation software MATLAB/Simulink for 7 levels as well as for 27 levels.
PERFORMANCE EVALUATION OF TWO STAGE POWER CONVERSION-BASED GRID CONNECTED PV SYSTEM
Authors: Ranjan Rajesh , Kumar Pradeep , Kumar Yadav Amit
Published: May 2024

This paper proposes design and control of a solar PV connected grid system having two stage power conversion process. First stage is the solar PV panel to DC-DC boost converter and the second stage is the DC-AC conversion using voltage source converter (VSC). Two stage power conversion has benefit over single stage, i.e., in former stage we can change the voltage by controlling duty cycle of chopper but in later case this is not possible. The control technique used to control output voltage of boost converter is one of the simplest MPPT (maximum power point tracking) techniques. For the model of this paper, Perturb and Observe (P&O) method is used as a MPPT technique. On the VSC side, synchronous reference frame theory (SRFT) has been employed to control the converter. This VSC control system uses 2 loops: external voltage loop and internal current loop. The complete solar PV connected grid system has been developed in MATLAB/Simulink and simulation results validate the performance of the complete system.
ESTRATEGIA METODOLÓGICA PARA LA RESOLUCIÓN DE PROBLEMAS MATEMÁTICOS EN ESTUDIANTES DEL NIVEL SECUNDARIO
Authors: Juárez Malca Marleny Lucía
Published: May 2024

La presente investigación tiene como principal objetivo aplicar una estrategia de enseñanza aprendizaje para mejorar los procesos de resolución de problemas matemáticos en todas sus dimensiones, en estudiantes de educación secundaria en Pimentel, sustentada en las Teorías de George Pólya y Allan Shoenfeld. La metodología de la presente investigación se enmarca en un enfoque mixto con diseño de tipo pre experimental, por su objetivo es aplicada, con diseño de investigación transversal. La población muestral estuvo conformada por 26 estudiantes del quinto grado de educación secundaria, cuyas edades oscilan entre los 15-17 años. Se procesaron 2 cuestionarios y un examen de matemáticas. Los resultados obtenidos en el post test presenta una mejora en el rendimiento académico de la matemática, demostrando la eficacia de la estrategia metodológica al reducir significativamente las dificultades en la resolución de problemas matemáticos.
CALIDAD DEL SERVICIO Y SATISFACCIÓN DEL USUARIO DEL SERVICIO DE EMERGENCIA EN UN CENTRO DE ATENCIÓN PRIMARIA
Authors: López Castillo Carlos Alfonso
Published: May 2024

El desarrollo de la presente investigación tuvo como objetivo establecer una relación entre la calidad de servicio y la satisfacción del usuario del servicio de emergencia del Centro de Atención Primaria III - La Victoria- Chiclayo. La estructura metodológica se ejecutó bajo un enfoque cuantitativo, con un nivel descriptivo, de corte correlacional y no experimental. La población estuvo compuesta por 2300 usuarios. La muestra se compuso de 317 participantes seleccionados de forma aleatoria, a quienes se les aplicó un instrumento por variable; validado por juicio de expertos. La confiabilidad del instrumento, según el Alfa de Cronbach, fueron de 0,910 y 0,954 respectivamente, indicando una alta confiabilidad de los instrumentos aplicados. Se encontró que el nivel de calidad de servicio fue medio (53,3%) y la satisfacción del usuario fue alto (49,5%). Como prueba de normalidad se aplicó Kolmogórov-Smirnov, encontrando un Sig. < 0.05, evidenciando que ambas variables no muestran una distribución normal; para establecer el nivel de relación entre ambas variables se aplicó Rho de Spearman = 0,775 estableciendo una correlación positiva y alta. Concluyendo con ello, que si hay una estrecha relación entre las variables las cuales son objeto del estudio.
PROMOCIÓN DE LA ACCESIBILIDAD PARA PERSONAS CON DISCAPACIDAD A TRAVÉS DE LAS TIC: PERSPECTIVAS EDUCATIVAS
Authors: Murrugarra Retamozo Brenda Isabel
Published: May 2024

Las personas con discapacidad, al emplear las Tecnologías de la Información y Comunicación (TIC), pueden encontrar limitaciones en la utilidad de estas herramientas tecnológicas, porque en ocasiones, el diseño de estas no se adecúa a sus necesidades o contextos. Por ello, esta investigación tuvo como objetivo, describir la importancia de la elaboración y diseño de las TIC para personas con discapacidad. En cuanto al método utilizado, se contó con el enfoque fue cualitativo, usando para ello la técnica del análisis documental, y como instrumento, la ficha de paráfrasis de doce (12) documentos pertenecientes a instituciones u organizaciones internacionales, y con contenido vinculado a la accesibilidad digital para personas con discapacidad. Los resultados mostraron que: (i) el diseño y elaboración de las TIC para personas con discapacidad promueva la inclusión, (ii) no contar con normas y políticas públicas que coadyuven a la implementación de las TIC para este grupo, de acuerdo a sus necesidades, perpetúa la exclusión, (iii) la participación de organizaciones para personas con discapacidad es fundamental para promover la accesibilidad digital de este grupo, aunque su intervención es limitada, y (iv) los Estados son responsables de brindar apoyo monetario para elaborar las TIC de acuerdo a los contextos de las personas con discapacidad, y para capacitar sobre su utilización.
CRIMEN ORGANIZADO Y NARCOTRÁFICO: RETOS ACTUALES PARA EL SISTEMA PENAL PERUANO
Authors: Pacheco Tuesta Hellen Stefani , Morocho Mendo Henry , Rojas Silva Oliver Francisco , Orozco Galecio Willian Antonio , Zumaran Montoya Angie Marisol
Published: May 2024

El artículo de revisión aborda el tema del narcotráfico y su conexión con el crimen organizado desde diversas perspectivas, con el objetivo de profundizar en este fenómeno que trasciende las fronteras nacionales. Se destaca que el narcotráfico opera en un contexto global, lo que lleva a analizar los factores que lo impulsan en este marco. Se busca entender la naturaleza transnacional de esta actividad y su relación con la globalización y el crimen organizado. El narcotráfico se describe como una actividad ilegal compleja que involucra intercambios de bienes prohibidos entre productores, distribuidores y consumidores, similar a un mercado. Su alcance se convierte en una preocupación de seguridad nacional para muchos países y se vuelve más difícil de combatir a medida que se adapta y se expande. Por otro lado, el crimen organizado se define como actividades delictivas realizadas por grupos con diferentes estructuras, dedicados al suministro de bienes y/o servicios. En Perú, se están implementando programas, discursos y legislaciones para combatir la producción de drogas, centrándose en las diversas formas de criminalidad organizada. A nivel académico, persiste la dificultad para determinar las complejas relaciones entre el tráfico de drogas y la criminalidad, a pesar de los esfuerzos por abordarlos desde un enfoque ideológico, político y jurídico.
Hubungan Dukungan Keluarga dengan Keteraturan Kontrol Kadar Gula Darah pada Penderita Diabetes Millitus Tipe 2 di Masa Pademic Covid-19
Authors: Herti Hertiana , Lindriani Lindriani , Ryadinency Resty
Published: May 2024

Jumlah penderita diabetes mellitus tipe 2 di kota Palopo pada tahun 2018 sebanyak 2.356 jiwa. Terdapat sekitar 40% dari total penderita DM di puskesams Pontap tidak teratur dalam melakukan kontrol kadar gula darah. Dukungan keluarga menjadi salah satu kunci utama keberhasilan penderita DM dalam melakukan pengendalian kadar gula darah. Penelitian ini bertujuan untuk mengetahui hubungan dukungan keluarga dengan keteraturan kontrol gula darah penderita Diabetes Millitus tipe 2 di Puskesmas Pontap Kota Palopo. Desain penelitian menggunakan  cross sectional, pemilihan sampel secara purposive sampling, sampel berjumlah 48 orang. Uji chi square menunjukan bahwa  p=0,520, hasil penelitian menunjukkan bahwa tidak ada hubungan dukungan keluarga dengan keteraturan kontrol gula darah. Dukungan positif keluarga tidak memberi dampak terhadap keteraturan kontrol gula darah di masa pandemi covid-19.
Hubungan Pola Makan dan Konsumsi Zat Besi dengan Kejadian Anemia Pada Mahasiswa Program Studi Diploma 3 Kebidanan
Authors: Puji Astuti Hutari , Bumi Pangesti Christiani
Published: May 2024

Penelitian ini bertujuan untuk mengetahui hubungan Pola makan dan Konsumsi Zat Besi dengan Kejadian Anemia mahasiswa Program studi diploma 3 Kebidanan STIKes Kusuma Husada Surakarta.Metodepenelitian yang digunakan adalah observasional analitik dengan pendekatan cross sectional. Penelitian ini dilakukan di Program studi (Prodi) D3 Kebidanan STIKes Kusuma Husada Surakarta dengan memberikan kuesioner tentang pola makan, pemeriksaan kadar Hemoglobin dan mengetahui apakah mahasiswa Program Studi Diploma 3 STIKes Kusuma Husada Surakarta mengkonsumsi tablet zat besi atau tidak. Kemudian data dianalisis dengan menggunakan metode  analisisChi Square Crosstabs, karena untuk menentukan hubungan antar variable yang akan diteliti. Berdasarkan hasil analisa data, didapatkan nilai signifikasi dari Pola Makan, Konsumsi Tablet Fe dan Kejadian Anemia sebesar 0,0351 (<0,005), yang artinya bahwa terdapat hubungan Pola Makan dan Konsumsi Tablet Fe dengan Kejadian Anemia pada Mahasiswa Prodi D3 Kebidanan STIKes Kusuma Husada Surakarta
Sikap Kader Kesehatan Terhadap Kasus Kekerasan Pada Anak
Authors: Lestari Sri , Nuzuliana Rosmita , Made Suseni Ni
Published: May 2024

Kasus kekerasan terhadap perempuan dan anak sangat mempengaruhi kesehatan yang  akan berdampak pada penurunan kualitas Sumber Daya Manusia (SDM). Oleh karena itu dibutuhkan pelayanan kesehatan secara komprehensif dan berkualitas. Pelayanan kesehatan bagi korban kekerasan pada anak dilakukan melalui pelayanan di tingkat dasar yaitu di Puskesmas. Keterbatasan petugas puskesmas dalam mengungkap wilayah yang memiliki potensial terjadi kekerasan dikarenakan ketidakmampuan kader dalam menyampaiakan kasus yang terjadi diwilah sekitar. Kader sebagai tangan panjang petugas puskesmas pun tidak tidak berperan dalam proses identifikasi kasus kekerasan pada anak. Kader menganggap hal tersebut adalah wilayah domenstik masing masing keluarga. Jenis penelitian ini adalah peneltian Observasional dengan rancangan cross sectional dengan pendekatan kuantitatif. Sampel yang digunakan 210 responden dengan menggunakan konsekutif sampling. Simpulan dari hasil peneltiian ini adalah 50% kader bersikap positf dan 50% bersikap negative. Hasil distribusi frekuensi menunjukkan sikap kader yang positif pada kader yang memiliki pendidikan tinggi, tidak bekerja dan memiliki pengalaman baik lansung maupun tidak langsung terhadap kasus kekerasan pada anak.Kader diharap meningkatkan pengetahuan dan pihak puskesmas meningkatkan sosialisasi terkait kasus kekerasan pada anak
Analisis Kesiapan Perawat dalam Impelementasi Evidence-Based Practice (EBP) di RSUD Sawerigading Kota Palopo
Authors: Hidayat Wahyu , Ayu Patmawati Try , Hertiana Hertiana
Published: May 2024

Evidence-Based Practice (EBP) dapat meningkatkan kualitas layanan kesehatan, keandalan, dan hasil pasien serta mengurangi variasi dalam perawatan dan biaya, namun EBP belum dijadikan standar perawatan di seluruh dunia. Penelitian ini menggunakan rancangan penelitian deskripsi dengan menggunakan metode survey. Penelitian ini dilakukan untuk mengetahui kesiapan perawat dalam implementasi EBP di RSUD Sawerigading Palopo. Populasi dalam penelitian ini adalah semua perawat yang bekerja di RSUD Sawerigading Palopo dengan jumlah sampel sebanyak 126 perawat menggunakan teknik purposive sampling. Teknik pengumpulan data dilakukan dengan survei menggunakan kuesioner kesiapan responden dan kuesioner implementasi EBP. Hasil penelitian dianalisis secara deksriptif. Hasil penelitian ini menunjukkan kesiapan perawat hanya 42.1% dan implementasi EBP kategori rendah sebesar 63.50%. Kesimpulan dalam penelitian ini sebagain besar perawat tidak siap dalam implementasi EBP sehingga disarankan penelitian selanjutnya untuk menemukan faktor penghambat dalam kesiapan implementasi EBP
Hubungan Pengetahuan Gizi Dan Body Image Dengan Status Gizi Remaja Putri Pada Masa Pandemi Covid-19
Authors: Wijayanti Wijayanti , Puspita Dewi Wiwik
Published: May 2024

BPS in 2020 recorded the age group of 10-19 in 2020 for female 21,562 per 100,000. This period is the most critical period that must be considered for nutritional intake because it is vulnerable to nutritional deficiencies. Factors that affect nutrition are body image and lack of nutritional knowledge. The incidence of Corona Virus infection, 10% was occured in patients younger than 39 years. The purpose of the study was to determine the correlation of nutritional knowledge and body image with the nutritional status of adolescent girls during the Covid-19 pandemic. This type of survey research was carried out with a cross sectional approach. The study was carried out at ITS PKU Muhammadiyah Surakarta in January–July 2021. The sample of this research was 30 people with the criteria of ITS PKU Muhammadiyah Surakarta students aged 17-20 years (purposive sampling). Statistical tests were carried out univariate, bivariate, and multivariate. The results of the study 1). There is a positive and significant correlation between adolescent knowledge about nutrition in the Covid-19 pandemic and the nutritional status of adolescent girls (r-count 0.591, Alpha 0.0012) 2) There is a positive and significant correlation between body image and nutritional status of adolescent girls (r-count 0.583, Alpha 0.0013 3). There is a positive and significant correlation between adolescent knowledge about nutrition in the Covid-19 pandemic and body image and nutritional status of adolescent girls (r-count 0.663 and F-count 10.595)
Hubungan Tingkat Kepuasan Pelayanan Makanan Terhadap Sisa Makanan Di Afif Catering Surakarta
Authors: Marfuah Dewi , Setya Wardana Agung , Tyas Nur Anggraeni Hervina
Published: May 2024

Kepuasan konsumen merupakan titik awal tumbuhnya loyalitas pelanggan sehingga penting untuk mengetahui penilaian terhadap kepuasan. Faktor – faktor pelayanan makanan yang mempengaruhi kepuasan konsumen yaitu ketepatan waktu distribusi makanan, sisa makanan yang tidak dihabiskan, variasi menu makanan, cita rasa makanan, kebersihan alat dan penampilan petugas dalam menyajikan makanan. Sisa makanan adalah jumlah makanan yang tidak habis dikonsumsi setelah makanan disajikan. Salah satu faktor yang mempengaruhi sisa makanan adalah tingkat kepuasan makanan. Tujuan penelitian : untuk mengetahui hubungan kepuasan makanan dengan sisa makanan di Afif Catering Surakarta. Metode penelitian : menggunakan desain observasional analitik dengan pendekatan cross sectional. Pengambilan sampel menggunakan teknik sampel jenuh sebanyak 25 sampel. Tempat penelitian di Afif Catering Surakarta. Data kepuasan makanan diperoleh menggunakan kuesioner sedangkan data sisa makanan diperoleh dari Comstock. Analisis data menggunakan uji Rank Spearman. Hasil penelitian : didapatkan kategori sebagian besar kepuasan makanan cukup puas sebanyak 78%, dan sebagian besar sisa makan tidak bersisa sebanyak 98%. Hubungan antara kepuasan makanan dengan sisa makanan (p = 0,838). Kesimpulan penelitian : ada hubungan kepuasan makanan dengan sisa makanan di Afif Catering Surakarta.
PENGARUH TERAPI AKTIVITAS KELOMPOK STIMULASI PERSEPSI SESI 1-2 TERHADAP KEMAMPUAN MENGONTROL HALUSINASI PENDENGARAN
Authors: Wijayanti Wijayanti , Hastuti Weni , Nahrowiyah Siti
Published: May 2024

Latar belakang: halusinasi adalah salah satu gangguan jiwa dimana pasien mengalami perubahan persepsi sensori tanpa adanya rangsangan dari luar. Halusinasi adalah ketidakmampuan klien menilai dan merespon pada realitas klien tidak dapat membedakan rangsangan eksternal dan internal, tidak dapat membedakan lamunan dan kenyataan. Terapi Aktivitas Kelompok (TAK) Stimulasi Persepsi merupakan salah satu jenis terapi yang dinilai cukup efektif untuk mengontrol halusinasi pasien. Tujuan penelitian ini adalah : mengetahui adanya pengaruh TAK stimulasi persepsi sesi 1-2 terhadap kemampuan pasien mengontrol halusinasi pendengaran. Metode Penelitian : Desain penelitian ini akan menggunakan desain quasi experiment dengan pendekatan one group pre-post test design. Sampel dalam penelitian ini sejumlah 14 pasien dengan diagnosa keperawatan halusinasi di RSJD dr Arief Zainuddin Surakarta. Proses peenlitian dengan memberikan perlakuan TAK Stimulasi Persepsi halusinasi sesi 1-2 terhadap pasien halusinasi pendengaran sebanyak 1 kali, dalam 3 hari yang berurutan. Dalam pelaksanaan menggabungkan pasien halusinasi pendengaran dalam satu kelompok dan dilakukan TAK selama 45-60 menit atau 1 jam. Pelaksanaan terapi aktivitas kelompok (TAK) dilaksanakan selama satu sebanyak 2 kali dengan diberi jarak dua hari. Hasil penelitian ini adalah : responden yang mengalami peningkatan kemampuan mengontrol halusinasi ada 11 orang, sedangkan yang tidak mengalami perubahan kemampuan mengontrol halusinasi ada 3 orang. Ada pengaruh yang bermakna dari TAK Stimulasi Persepsi sesi 1-2 terhadap kemampuan mengontrol halusinasi pendengaran. Nilai p = 0,003 (p<0,05), sehingga diputuskan Ha diterima
Analisis Pertumbuhan Bakteri Pada Daging Sapi Dengan Pengemas Daun Jati (Tectona Grandis) Dan Daun Pisang (Musa Paradisiaca)
Authors: Aprilia Rinaldi Nosi , Luthfianto Dodik , Pertiwi D.K Dewi
Published: May 2024

Daging merupakan bahan pangan yang bernilai gizi tinggi kaya akan protein, lemak, mineral serta zat lainnya yang sangat dibutuhkan tubuh. Kandungan gizi yang tinggi merupakan media yang baik untuk pertumbuhan dan perkembangan mikroorganisme. Daun jati mengandung flavonoid, alkaloid, tanin, napthaquinones dan antrakuinon yang dapat menghambat pertumbuhan bakteri. Daun pisang mengandung flavonoid, fenolik dan tanin berfungsi sebagai pelindung seluruh permukaan daging dari kontaminasi bakteri. Tujuan dari penelitian adalah untuk mengetahui perbedaan total bakteri antara pengemas daun jati (Tectona grandis) dan daun pisang (Musa paradisiaca) pada daging sapi. Metode penelitian menggunakan Rancangan Acak Lengkap (RAL) dengan 5 perlakuan. Hasil penelitian didapat nilai p 0,000 tidak ada perbedaan yang signifikan total bakteri pada daging sapi baik yang dibungkus menggunakan daun jati dan daun pisang. Daun pisang dapat menekan bakteri sampai 12 jam, sedangkan daun jati hanya bisa menekan bakteri sampai 6 jam
Analisis Pengetahuan Ibu Tentang Status Gizi dengan Kepatuhan Pemantauan Pertumbuhan Balita
Authors: Sri Haryanti Rusiana , Wijayanti Wijayanti , Syarifah Syarifah
Published: May 2024

Pertumbuhan dan perkembangan balita merupakan indikator utama dari kesehatan anak-anak. Pemantauan pertumbuhan balita menjadi sangat penting untuk memastikan bahwa mereka menerima asupan gizi yang cukup dan memadai. Di Indonesia, meskipun terdapat peningkatan dalam pemantauan pertumbuhan balita, masih terdapat tantangan terkait kepatuhan ibu dalam melakukan pemantauan tersebut. Pengetahuan ibu tentang status gizi balita menjadi faktor yang mendasar dalam proses ini. Posyandu (Pos Pelayanan Terpadu) di Indonesia memiliki peran strategis dalam upaya pemantauan dan perbaikan status gizi balita. Tujuan penelitian ini adalah untuk mengetahui hubungan pengetahuan ibu tentang status gizi dengan kepatuhan pemantauan pertumbuhan balita. Metode penelitian yang menggunakan penelitian deskriptif analitik dengan desain cross sectional dan teknik analisis bivariat menggunakan uji statistic spearmen rank dan uji T. Hasil analisis bivariatnya menggunakan Korelasi Spearman Rank diperoleh nilai korelasi sebesar 0.272  dengan nilai probabilitas sebesar 0.034. Sehingga didapatkan hasil nilai r-hitung > r-tabel,  Kesimpulannya adalah ada hubungan antara pengetahuan ibu tentang status gizi dengan kepatuhan pemantauan pertumbuhan balita usia 1-4 tahun.