Static Electricity Research Articles

The Effect of Using Virtual Laboratories Using the Guided Discovery Learning Model on Students' Conceptual Understanding of Static Electricity Material

This study aims to test or examine the effect of the use of virtual laboratories using the Guided Discovery Learning model on students' conceptual understanding abilities in static electricity material. This type of research is a quasi-experimental study with a nonequivalent control group research design. The population in this study were all students of class XII of SMAN 1 Monta. The sampling technique used in this study was purposive sampling with class XII MIPA 2 consisting of 28 students as the experimental class and class XII MIPA 1 consisting of 28 students as the control class. Before and after the treatment, both classes were given a conceptual understanding ability test in the form of essay questions that had previously been tested for their feasibility with validity, reliability, difficulty level of questions, and discriminatory power. The results of the initial test (Pretest) and final test (Posttest) of conceptual understanding ability were analyzed for homogeneity and normality to conduct a hypothesis test. The analysis of the hypothesis test using the t-test obtained a t_count of 3.49 and a t_table of 2.00. Thus, the calculated t_value is greater than the t_table, so H_0 is rejected and H_a is accepted, so it can be concluded that there is an influence of the use of virtual laboratories using the Guided Discovery Learning model on students' conceptual understanding abilities in static electricity material.

Porous and Conductive Fiber Woven Textile for Multi‐Functional Protection, Personal Warmth, and Intelligent Motion/Temperature Perception

AbstractIndustrialization and human activities have introduced numerous hazards, including exposure to harsh chemicals, radiation, static electricity, and fire risks, particularly in high‐risk sectors such as engineering, rescue operations, military, and aerospace. This study presents a multi‐functional protective textile developed from a conductive fiber composed of polytetrafluoroethylene (PTFE) and carbon nanotubes (CNT), crucial for ensuring personal safety. The conductive fiber demonstrates remarkable strength (17.3 MPa), high porosity (76%), and significant electrical conductivity (185 S m−1), coupled with excellent fineness and flexibility due to its dual‐nanofibrous structure. The resulting textile exhibits exceptional hydrophobicity, chemical resistance, and high electromagnetic interference shielding effectiveness (29 dB in the X‐band), alongside a superior UV protective factor (>3000) and anti‐static properties. Notably, it possesses outstanding electro/photo thermal conversion capabilities, enabling consistent heat generation for personal warmth. Additionally, the textile responds electrically to deformation and temperature changes, facilitating intelligent applications such as motion and temperature monitoring and fire alerts. This work offers a novel strategy for fabricating PTFE‐based composite fibers with porous microstructures and high electrical conductivity, setting a new standard for next‐generation protective clothing with advanced functionalities.

Research on Handling of Leaf Using Static Electricity

Research on Handling of Leaf Using Static Electricity

Using acetic acid as a preconditioner to optimize rheology of alkali-activated coal gasification slag based backfill pastes

The workability of alkali-activated coal gasification slag (CGS) based backfill materials is critical parameter in transportation processes, while the high water demand of CGS hinders its application due to its high specific surface area. This study utilizes acetic acid (AA) as a preconditioner to modify the surface characteristics of CGS, aiming to optimize the rheology of alkali-activated CGS backfill pastes (AAC). The shear stress, viscosity, thixotropic property, and zeta potential of AAC, and mineral composition and surface morphology of AA-modified CGS at various AA dosages were systematically investigated. It is found that the yield stress, plastic viscosity, and hysteresis loop area of AAC reaches the lowest value at 4 wt% AA dosage on the basis of the CGS, owing to AA reacts with the minerals on the surface of CGS particles, and then the AA is adsorbed on the CGS particles and acts as a surfactant, which increases the static electricity between CGS particles. However, the yield stress of AAC increases significantly when the AA dosage exceeds 4 wt%, attributing to the smaller particle size resulting from AA modification, which raises water demand. This investigation proposes a novel approach for optimizing the rheology of CGS based AAC and provides theoretical guidance for employing modified CGS as backfill materials.

Needs Analysis for a STEM Discovery Learning-Based E-Module in Static Electricity

Abstract This study aims to determine the need for learning devices in the form of electronic teaching module based on STEM Discovery learning to measure critical thinking skills and collaboration skills of students so that it can be known and there is a follow-up from researchers to teachers in implementing learning. The need analysis studied was a teaching module need analysis, static electricity material analysis, critical thinking ability analysis, and collaboration skills. The subjects of this research are high school physics teachers who teach using the Merdeka curriculum and teach in grade 12. The participants of this research are 30 teachers from different schools in several districts/cities in Central Java, Yogyakarta, and Bangka Belitung. The research method used is the quantitative descriptive research method. The data collection techniques used in this study consisted of observation, questionnaires, documentation, and literature studies. The data collected were analyzed with appropriate instruments, with descriptive statistical analysis techniques. Based on the data analysis, the following results were obtained: 1) As many as 70% of physics teachers still face difficulties in developing teaching modules, but 85.83% of them expressed interest in creating modules that are aligned with the criteria for electronic teaching modules based on STEM Discovery learning in the Merdeka curriculum; 2) Static electricity is important but difficult for students to understand; 3) Teachers struggle with teaching aspects related to both students’ critical thinking and collaboration skills, with 70% of physics teachers reporting difficulties in fostering critical thinking and 52.78% facing challenges in enhancing collaboration skills; 4) Teachers need teaching module that supports aspects of critical thinking skills and collaboration skills of students.

Aerial electroreception

Electroreception is the capacity of living organisms to detect the presence of electricity, usually studied in the aquatic environment. Electroreception in air, however, has received much less attention until relatively recently. Understanding how and why aerial electroreception may work requires a multidisciplinary framework, anchored in both the physics of static electricity and the ecology of sensory biology. In essence, the novel challenge arises from the fact that air is a much less conductive medium than water. Yet, recent research on terrestrial arthropods, including bees, flies, spiders, worms and caterpillars, has unveiled sensitivity to electric fields in different sensory ecological contexts. For each aerial organism considered thus far, filiform hairs and/or the antennae have been proposed to be the specialised sensory structures enabling detection based on both empirical and theoretical evidence. This newfound sensory modality reveals a previously unrecognised source of information, a new informational ecological niche integral to diverse life histories and navigational abilities, which remarkably involves animals, plants and atmospheric electricity (Figure 1). Understanding aerial electroreception in arthropods opens avenues for exploring their behaviour and ecology in diverse environments and sheds light on the evolution of sensory adaptations in terrestrial organisms. Because, as is known today, humans are not sensitive to weak electric fields, challenges arise in our comprehension of the elusive and discrete nature of aerial electric fields, and how they could be detected and used by terrestrial organisms.

«KEGOC» КОМПАНИЯСЫНДА ӨНДІРІСТІК ЖАРАҚАТТАНУДЫҢ АЛДЫН АЛУДЫ ТАЛДАУ

This article discusses the problem of occupational injury prevention at «KEGOC». The authors analyze the current situation and present their recommendations for improving the occupational safety management system. The main focus is on electrical safety, which includes protection measures against the effects of electric current, electromagnetic field, electric arc and static electricity. The article presents data on the most common ways of passing current in the human body and on the effects of electricity on the body. «KEGOC» strives to create working conditions that meet the requirements of safety and hygiene, and is actively developing, using modern technologies and striving to increase its value for all stakeholders. The company is also actively engaged in social responsibility, implementing energy efficiency projects and environmental programs. The authors pay special attention to occupational safety and industrial safety. In particular, they emphasize the need to create safe working conditions, minimize injuries, improve production and sanitary conditions, as well as reduce the impact of harmful and adverse factors. In this context, the use of a health and safety management system is mentioned, which covers all structural divisions and subsidiaries of the company. An important aspect is the conduct of a behavioral safety audit and the implementation of the «KEGOC» JSC program on the occupational safety and health management system in accordance with the international standard ISO 45001. It also mentions the annual and shift medical examinations of employees and the availability of special labor protection services in each branch of the company. The article discusses the results of the analysis of occupational injuries and concludes that there is a need for continuous improvement of the risk management system and the introduction of innovative approaches to achieve maximum efficiency in the field of occupational safety and industrial safety.

Preparation of Antistatic Polyester Fiber via Layer-by-Layer Self-Assembly

Polyester fibers tend to generate static electricity during the weaving and application processes, posing a threat to their production. Enhancing the water absorbency and electrical conductivity of polyester fibers themselves is an effective approach to improving their antistatic properties. In this study, multifunctional chitosan (CS), sodium phytate (SP), and Cu2+ were loaded on polyester fibers through layer-by-layer (LBL) self-assembly. The antistatic and water absorption capability of the modified polyester fibers was investigated by designing different process parameters combined with a surface resistance test and water contact angle tests. The antistatic property test results confirmed the positive effect of CS and Cu2+ on discharging electrostatic charge. Within a definite scope, with the increase in the number of assembly layers, assembly duration, and the concentration of the assembly substances, the wettability of the modified polyester fibers became more favorable and the antistatic effect became more remarkable.

CREATION OF A WORDWALL-BASED COGNITIVE ASSESSMENT TOOL FOR STATIC ELECTRICITY MATERIALS

Cognitive assessment of kids who still frequently use paper documents and certain school-provided software. The objective of this study is to develop a legitimate, dependable, efficient, and useful tool that may be used to teach static electricity concepts through wordwalls. This study use the ADDIE model in conjunction with the Research and Development technique. Purposive sampling is the sampling strategy used, taking into account samples that have finished the science learning material on static electricity. There were 57 individuals in the sample. The SMP 42 Negeri in Semarang City is the research location. Using SPSS software version 2019 and Ministep, the data analysis technique involves testing the validity, reliability, efficacy, and practicality of test instruments and questionnaires.The study's findings demonstrate that the creation of a wordwall-based cognitive instrument on static electricity learning outcomes is valid, dependable (having received an adequate category score of 0.74), successfully executed (having received an average score of 74.8), and practically implemented (producing 66.4% of the responses from students). This means that future researchers can build on this tool to suit their needs and the reference tools that are used to assess learning.

Development of Augmented Reality-Based High School Physics Learning Media on Static Electricity Material

Physics is a branch of science that discusses natural phenomena. Physics learning process is expected to facilitate students to observe the phenomenon directly, but not all phenomena can be observed directly. One of them is static electricity subject material. So, learning media is needed that can channel information to students. Teachers can create various learning media with dynamic representations such as Augmented Reality. This study aims to determine the feasibility of Augmented Reality based learning media on static electricity material developed. This research is a type of R & D (Research and Development) research with the 4D model (Define, Design, Development, and Disseminate). The media feasibility test is determined through validation by 4 validators, namely 2 media experts and 2 material experts. The results of the feasibility test in terms of media with indicators of graphics and language got a percentage of 81% with very feasible criteria and in terms of material with content, presentation, and contextual indicators of 83% with very feasible criteria. Thus the development of Augmented Reality-based learning media on static electricity material is very feasible to use in supporting physics learning. Keywords: Learning Media; Augmented Reality; 4D; Feasibility Test.

Exploring electricity in early childhood education: A 5E-based learning approach

This paper presents a teaching scenario designed to introduce preschool children to electricity, structured around the 5E instructional model (Engage, Explore, Explain, Elaborate, Evaluate). The study involves 18 children from an urban kindergarten with diverse backgrounds and learning needs. Over four weeks, children engage in interactive activities to understand electrical devices, electric current, static electricity, conductors, insulators, electricity generation, and safety. The curriculum integrates interdisciplinary learning, combining literacy and science, and uses hands-on experiments and digital tools to enhance engagement. Activities include constructing simple circuits, experimenting with static electricity, and role-playing. Emphasis is placed on practical applications and safety. Findings highlight the effectiveness of a constructivist approach, where children build understanding through exploration. The study underscores the need for resources, teacher preparedness, and inclusive strategies to address diverse learning needs. This scenario provides insights into effective early childhood science education, emphasizing the potential to build a strong foundation for future learning and curiosity in young children.

A new dual-functional strategy to desensitize and sense the explosive and toxic 1,3,5-trinitro-1,3,5-triazinane by cyclo[n]carbons (n = 10,14,18).

In this work, in order to find new strategy to solve the safe problem of one famous high energy compound 1,3,5-trinitro-1,3,5-triazinane (RDX) under the impact and static electricity environment, cyclo[n]carbons (n = 10, C10; n = 14, C14; n = 18, C18) were employed to construct novel energetic composites (RDX@C10, RDX@C14, RDX@C18) with RDX for the first time. The investigated results showed that C10, C14 and C18 all can form stable composites with RDX through a exothermal process. Three cyclo[n]carbons could not only decrease the impact sensitivity of RDX by decreasing the positive ESP values and transferring the HPV region. But also could reduce the electrostatic sensitivity greatly by decreasing the energy gap, increasing the EHOMO and controlling the active electron-induced process and reaction. Among them, the desensitization effect by C18 and C14 was found to be much better than C10. In addition, three cyclo[n]carbons may be used as new sensors for the detection of RDX, due to the fast recovery time under different lights, and great change in the UV-Vis spectrum. These improvements may provide valuable insights for enhancing the safe performance of high energy compounds with similar structures to RDX, and broaden the application sphere of cyclo[n]carbons. All of the calculations on the structures were carried out by using the Gaussian 09 software at the M06-2X/6-311G(d,p) level. In addition, further calculations on the properties and interactions were performed by using the Multiwfn software.

Enhancing Risk Management: Leveraging the Likelihood/Severity Matrix for Effective Risk Assessment and Mitigation in the Electrical and Electronic Sector

This paper presents the basic concept of risk and reviews commonly applied tools and techniques for risk assessment. Generally, risk assessment is a completely experiential decision-making process based on experience and knowledge of risk assistants. This paper emphasises one quantitative/qualitative technique, namely the likelihood/severity matrix approach, which aims to direct the organisation’s attention towards risks that have the highest potential to have a negative effect. This paper’s main contribution lies in introducing a proposed model that utilises the likelihood/severity matrix approach to categorise risks into ‘regions’ and subsequently rank them. This process supports risk managers in making informed decisions to reduce risks effectively. A likelihood/severity matrix was examined through a case study belonging to the electrical and electronic sector to find the critical risks that hinder the assembly line of personal computers. Results showed that the ‘Breaking parts during assembly’, ‘Shocking the components from static electricity discharge’ and ‘Using wrong compatible parts’ risks had the maximum risk score, with values of 10–15 as the most critical risks. These results can influence decision makers in developing actions to mitigate these highlighted risks.

Diagnosing electrostatic problems and hazards in industrial processes: Case studies

AbstractStatic electricity is a phenomenon commonly encountered yet often misunderstood and underestimated in terms of its hazard potential; it continues to challenge the safety and reliability of industrial processes, particularly those involving flammable substances. This paper delves into the critical issue of electrostatic hazards in industrial settings by presenting two flash fire/explosion case studies, one involving biphenyl dust and the other gasoline vapor; both linked to electrostatic discharges. The first case study examines an explosion in a flaker and pack‐out hopper during biphenyl flake manufacturing. The investigation reveals the role of electrostatic charges in the incident and how well‐intentioned equipment changes created warning signs of increased risk that were missed. The second case study discusses a gasoline vapor flash fire, highlighting the common yet overlooked hazard of static electricity during the transfer of flammable liquids. It underscores how common activities involving people can generate sufficient electrostatic charge to ignite flammable vapor–air mixtures in industry. The outcomes of these studies highlight the importance of acting on early warning signs of static electricity and the crucial role of data‐driven diagnostic techniques in addressing and controlling those hazards. By dissecting the intricacies of electrostatic phenomena, safety professionals can formulate actionable strategies to adapt plant operations and prevent hazards from static electricity. The paper advocates for a proactive approach to identifying and mitigating electrostatic risks in industrial settings beginning with process hazard analyses that incorporate static electricity hazards analysis and continues through employee training to ensure that early warning signs are identified, understood, and acted upon. It stresses the need for comprehensive safety measures, including proper grounding and bonding, use of static dissipative materials, and regular maintenance of safety equipment, to prevent incidents. Through these case studies, the paper contributes to understanding of electrostatic hazards in industrial processes and highlights the importance of integrating electrostatic safety measures into routine industrial operations.

Epidemiologic Assessment of Scabies: Actuality of Airborne Transmission and Additional Standards to Reduce Spread of Contagion and Reinfestation

Scabies are caused by parasites that live their entire life within the outer layers of the epidermis. When dislodged either by gravity, friction, motion, wind, or static electricity, they assume great risks to survival. Innate abilities to sense human smell and heat, to move over short distances, and to penetrate the skin quickly allow them a fighting chance to find a new host if they land within 4 inches of a human. Females store sperm, allowing one mite to begin a colony. Transmission is by person-to-person, fomite, and airborne. They are aerodynamic, light, and balloon-shaped, all making airborne transmission easier than previously understood, as well as explaining the dissemination of mites beyond the normal zones of activity of the index case. Presently, the bulk of the medical literature suggests that transmission from inanimate objects poses little concern in common scabies. However, as mites can navigate through cloth gowns, one might consider protection with more protective garb. Mites cannot penetrate through waterproof clothing, and thus, this attire should be recommended to avoid reinfestation and infesting others. Sofas, chairs, office furniture, and car seats on which an index case might sit need to be covered with plastic sheeting. Given that the half-life of ivermectin is 18 hours and that mites dehydrate within 96 hours, strict transmission controls are only needed for 3 days to avoid reinfestation as well as infesting others. Key Points Scabies is an intensely itchy skin rash caused by a burrowing mite that infects the outer layers of the skin. Scabies is contagious and usually spread by direct, prolonged skin-to-skin contact with an infected person; however, fomite and airborne transmission are also operative. Precautions should be in place to avoid direct skin-to-skin contact between a patient with scabies and visitors. Water-proof clothing would be advisable, especially in cases involving Norwegian scabies. Success rates with oral ivermectin would more closely approach 100% if all transmission factors, including fomite and airborne, were addressed.

Development of an AR–based enrichment module to introduce electrospinning as an application of static electricity principles for senior high school students

Development of an AR–based enrichment module to introduce electrospinning as an application of static electricity principles for senior high school students

Development Diagnostik Of Three Tier Multiple Choice Diagnostic Test Instrument To Assess Learners' Ability On Static Electricity Material

This study aims to determine the feasibility and ability of learners to the instruments developed. This research was conducted at SMA Negeri 6 Pematangsiantarcarriedin the odd semester of the 2023/2024 academic year. The type of research used is R & D (Reaserch and Development) using 3D models. The study was conducted on students who have studied static electricity materials. The samples used in this study were 36 students from Class XII-IPA 3 taken byrandom sampling. Data collection techniques in this study is by way of interviews, tests, and provide a response questionnaire. Data analysis was performed using the person correlation equation with diagnostic tests. The results of this study is a test instrument to measure the ability of students in SMA Negeri 6 Pematangsiantar on static electricity as many as 20 items of diagnostic questionsthree tier multiple choice. The item is already valid measured by the estimated product moment, has a high level of reliability with a value of 0.712, the difficulty level of the item is good. The results of the analysis of the problem items and the analysis of the ability of students showed that the test instruments used are effective in measuring the ability of students in SMA Negeri 6 Pematangsiantar on static electricity.

Electrostatic Surface Charging by Water Dewetting.

Water dewetting generates static electricity. We reviewed historical experiments of this phenomenon, and we studied the charging of polymer slides and metal electrode supported polymer films withdrawn vertically from a pool of aqueous solutions. For pure water, charging was negative and surface charge densities increased with the speed of dewetting, which we explain by the thermally activated entrainment of nanometer-sized water droplets or clusters charged by unbalanced adsorbed electric double-layer ions. Surface charge densities increased for reduced polymer film thickness following a power law, which we explain by reduced discharge of the entrained water volumes. At low salinity c ≲ 10 μM, charging was proportional to electrokinetic interfacial charge densities: the negative charging was increased for alkaline solutions and for most salts at μM concentrations and the charge polarity was inversed to positive for a cationic surfactant, a salt with a highly positively charged cation, and for a strong acid at approximately pH 4. Charging was reduced again for c ≳ 100 μM, especially at high dewetting speeds and for chaotropic ions, which we explain by the entrainment of larger and more discharged droplets. We determined adsorption energies of the charged water clusters on the dewetted surface from thermally stimulated discharge of the charged polymer slides and we show that the surface charge distribution, imaged by charged toner powders and measured microscopically by Kelvin probe force microscopy, is a record of the dewetting process that provides spatial and kinetic information about the three-phase contact line motion.

Sparking Students’ Curiosity: Embedding Strategies to Promote Curiosity Alongside Teaching Static Electricity

Sparking Students’ Curiosity: Embedding Strategies to Promote Curiosity Alongside Teaching Static Electricity

The Use of Nonmetallic Fraction Particles with the Double Purpose of Increasing the Mechanical Properties of Low-Density Polyethylene Composite and Reducing the Pollution Associated with the Recycling of Metals from E-Waste

A restorative process, where the nonmetallic fraction from e-waste printed circuit boards is reused as a raw material for the conformation of a new polymer matrix composite with increased properties favoring its industrial applications, is proposed with a zero residues approach. Low density polyethylene pellets and nonmetallic fraction particles were mixed, and due to the generation of static electricity during the mixing process, the nonmetallic particles became attached to the polyethylene pellets; the blended material was fed into a screw extruder, producing filaments of the new composite. Mechanical properties increased as the particles content increased, presenting an ultimate tensile strength going from 20 for the raw low-density polyethylene to more than 60 MPa, and a yield strength that goes from 10 to 50 MPa on the composite with 6.0 wt.% particles. Also, the flammability of the composite improved, reducing its linear burning rate and increasing the time between detachment of two consecutive drops. Nonmetallic fraction particles were oriented in the extrusion direction and had a good adhesion with the polyethylene matrix. These composites can be employed for the production of prototypes using additive manufacture.