Stages Of Condensation Research Articles

Manajemen Tahfiz Al-Qur’an di RA Al Firdaus Kisaran Timur Asahan

Early childhood education institutions in the modern era offer various superior programs, one of which is the Al-Qur’an tahfiz program. Implementing the Tahfiz Al-Qur’an program requires good management with the stages of planning, organizing, implementing and monitoring. For young children who have a tendency to play, they need to manage memorization activities in an interesting and fun way. The aim of this research is to determine the management of the Al-Qur’an tahfiz program at RA Al Firdaus Kisaran Timur Asahan. The method used in this research is qualitative with data collection techniques using participant observation and in-depth interviews. All existing data is analyzed using the stages of data condensation, data display and verification. The findings in this research are that in the tahfiz Al-Qur'an program at RA Al Firdaus, the planning carried out was a clear formulation of the vision, mission, goals, targets and learning tools. In the organizing process, efforts were made to group children's ages by memorization level and target. In implementation, school principals and teachers have a strong commitment and various methods that are relevant and interesting and there is no coercion in teaching children to memorize the Al-Qur’an. Furthermore, in supervision, the institution carries out a program of observation, supervision, daily and end-of-semester assessments. Supervision is carried out by the principal and teachers at RA Al Firdaus on an ongoing basis and in collaboration with parents.

Adsorption and capillary condensation transitions on nanostructures: Mechanisms of atomic evolution and meniscus growth

To investigate the kinetic process from adsorption to capillary condensation within nanostructures, a serious of atomic-scale simulation is devoted to this work. The atomic behavior reveals that with the occurrence of capillary condensation, a liquid meniscus is formed at the base of the nanopillars, accompanied by a rapid increase in the formation of multi-molecular clusters. The critical adsorption amount required for the initiation of capillary condensation is related to the saturation adsorption capacity on a bare surface. In adsorption stage, the adsorption capacity shows a linear increase over time. Meanwhile during condensation stage, the condensation rate within irregular nanostructure space is associated with the curvature radius of meniscus. Higher condensation rates are observed between adjacent pillars compared to other positions. To elucidate the relationship between the capillary condensation rate and vapor pressure, nanopillar spacing, and surface wettability, the Hertz-Kundsen equation is employed. The increase in capillary condensation capacity with pressure is positively correlated with spacing between nanopillars, regardless of surface wettability. No blocking effects are observed and a hysteresis loop is presented within mesoporous irregular space in this study. The width of the hysteresis loop is influenced by the nucleation barrier, which increases with larger spacing or lower surface wettability.

Review on condensation frosting and defrosting experiments for superhydrophobic surfaces

Frosting is a natural phase change phenomenon which happens frequently in nature and industry and has negative effects on a variety of applications. As a passive anti-frosting strategy, superhydrophobic surfaces have been paid more and more attention. To shed light on the process and space–time characteristics of frosting on superhydrophobic surfaces, the preparation methods of superhydrophobic surfaces were introduced first. Then, the internal mechanisms of anti-frosting for superhydrophobic surfaces were revealed from two perspectives of condensation frosting and defrosting. For the preparation of superhydrophobic surfaces, previous studies have shown that laser etching could obtain ideal surface parameters, but there is still a lack of a preparation scheme with low cost and good reliability. For the condensation frosting on superhydrophobic surfaces, the surface with regular surface morphology could realize the spontaneous wettability transformation of the droplets and maintain the size of the condensed droplets within 10–20 μm. The freezing time of droplets on the surface with a regular micro-nano structure is about 4.42 times longer than that on the surface without a regular micro-nano structure. The condensation stage and droplet freezing stage are the keys to preventing frost on superhydrophobic surfaces. For the defrosting on superhydrophobic surfaces, the photothermal defrosting method using metal nanowires, graphene, and carbon nanotubes has a broad application prospect. The results of this study summarized the achievements, problems, and challenges of the current research, so as to provide a reference for the anti-frosting technology of superhydrophobic surfaces in practical applications.

Implementation of Regional Non-Cash Food Aid Policy, Indonesia

After the declaration of COVID-19 as a national pandemic, government policy, as stated in the Presidential Regulation of the Republic of Indonesia Number 63 of 2017 concerning the Distribution of Non-Cash Social Assistance, states that the government is obliged to tackle poverty in any way by policy measures, one of which is through fulfilling basic needs through social assistance. Bandungrejosari Village, Sukun District, Malang City, is one of the villages that has received social assistance. However, distribution to beneficiary families (KPM) still needed to be evenly distributed based on field findings during the research, including several obstacles in data verification and recipients who were not on target. This research aims to describe and analyze policy implementation, supporting factors and obstacles to implementing the Regional Non-Cash Food Assistance (BPNTD) policy in Bandungrejosari Village, Sukun District, Malang City. The type of research used is a qualitative descriptive approach. According to Miles and Huberman, the data analysis technique uses an interactive analysis technique model with stages of data collection, data condensation, data presentation and conclusions. This research was conducted in the Bandungrejosari Village, Sukun District, Malang City. The results of this research regarding the implementation of the BPNTD policy in Bandungrejosari subdistrict, Sukun sub-district, Malang city are still uneven because there are still many poor and underprivileged people who have not received BPNTD social assistance from the total number of poor people based on data on the number of poor people in Bandungrejosari subdistrict.

Precise tuning of silica pore length and pore diameter on silica-encapsulated gold core–shell nanoparticles and catalytic impact

The ability to individually tune the pore length and pore diameter of silica-encapsulated gold core–shell nanoparticles (CSNPs) via a seeded encapsulation method is demonstrated and their impact on catalysis determined. Reducing the solvent volume during the shell growth phase resulted in CSNPs with shells of increasing thickness from 75 nm to 202 nm, following a linear relationship. The addition of 1, 3, 5-triisopropylbenzene (TIB) during synthesis increased the average pore diameter from 25 Å to 32 Å by swelling the pore template, swelling further to 38 Å when adding both TIB and n-decane. By decoupling the gold core reduction and silica condensation stages, gold core diameters were largely unaffected by silica growth reaction conditions. This was achieved by encapsulating CTAB-stabilized nanoparticles rather than reducing and stabilizing the nanoparticles during silica condensation. When used to catalyze solvent-free benzyl alcohol oxidation, it was found that CSNPs with increasing shell thicknesses demonstrated increased formation of the desirable aldehyde product, holding the undesired ester product yield constant. In contrast, CSNPs with increasing pore diameter exhibit increased formation of both aldehyde and ester products unselectively. These results—uniquely observed through the parametric isolation of pore length and diameter—suggest the reactant concentration at the pore wall due to hydrogen bonding, forming concentric “microphases” within the pores.

Discourse-Based Teaching in English Language Teaching at Islamic Universities in Borneo: A Critical Discourse Analysis Perspective

This critical discourse analysis aims to uncover what ideologies emerge in English language teaching at Islamic universities in Borneo, explain how discourse-based teaching is implemented, and why discourse-based teaching is necessary for English language teaching at Islamic universities in Borneo. This is qualitative phenomenological research using Fairclough's Critical Discourse Analysis model. The primary data sources for this research are English language lecturers and college students at universities in Borneo, namely UIN Sultan Aji Muhammad Idris Samarinda, UIN Antasari Banjarmasin, IAIN Palangkaraya, and IAIN Pontianak. The researcher used several research instruments to collect the data: interviews, questionnaires, observations, and documentation. The data analysis technique used in this research is the interactive model from Miles et al. with the stages of data collection, data condensation, data display, and conclusion. This research concludes that English language education at Islamic universities in Borneo has an ideology of character development, influenced by several factors such as the shift in character values, the spirit of nationalism, and political policies of the Ministry of Religion to maintain national unity with a religious moderation agenda, and the vision to develop graduates who have solid Islamic character. In addition, English language education aims not only to master English language skills but also to compete in the era of information technology with critical thinking skills. Therefore, English language teaching at Islamic universities in Borneo is based on a discourse approach, from lesson planning and teaching implementation to teaching evaluation. This research implies that English language teaching should not only focus on English language skills or TEFL content but also on achieving learning outcomes from the goals of the study program, students’ needs, and the roles of lecturers as educators of Islamic and national character values.

Heterogeneous nucleation condensation of methane gas on the wall-A molecular dynamics study

Methane is condensed in a low-temperature heat exchanger, a critical step in the liquefaction of natural gas. Currently, the microscopic mechanism regarding the heterogeneous condensation of methane on the heat exchanger wall remains unclear. This lack of understanding is of scientific importance in advancing the development of natural gas liquefaction processes. Therefore, molecular dynamics simulation is used in this paper to study the process of methane heterogeneous nucleation and core growth during the early stage of condensation, and analyze the influence mechanism of wall energy and cold source temperature on nucleation kinetics. The results show that the high-energy wall can enhance the interaction between cold wall atoms and methane molecules, facilitate heat transfer, accrete methane molecules to condense and adsorb on the wall to form a core, thus increasing the condensation rate of methane. Whereas, the low-temperature cold source promotes the condensation nucleation and growth process by increasing the supersaturation of methane. This study investigates the process and kinetic characteristics of heterogeneous nucleation of methane from a microscale perspective, providing guidance for the development of natural gas liquefaction in low-temperature heat exchangers, with the aim of enhancing the diversity and reliability of energy supply.

Condensation mode transition and droplet jumping on microstructured surface

Condensation enhancement on the micropillar structured surfaces is studied using a three-dimensional lattice Boltzmann model, and the optimal micropillar configuration is assessed. The impacts brought by varying micropillar geometric parameters on heat transfer and droplet dynamics during dropwise-to-filmwise transition are explored. Increasing micropillar width and spacing or decreasing height accelerates nucleation and improves nucleation density in the dropwise condensation stage, while radial contraction of the liquid film is hindered and the heat transfer area is increased in the filmwise condensation stage. Compared with its plain competitor, the maximum number of the isolated droplets is increased by 525%, the nucleation time is advanced by 57.1% and the heat flux is increased by 187.4% on the optimal micropillar surface. The entire condensation process spanning over nucleation, coalescence and jumping of multiple condensate droplets on the micropillar surface is realized using the present three-dimensional lattice Boltzmann model for the first time. The effects of height and spacing of micropillar arrays on jumping height and velocity are analyzed. The results show that the micropillar height poses little effect on the jumping height and velocity when the micropillar spacing is 0.1. When the micropillar spacing is 0.15, the jumping height and velocity first increase but then decrease with the increase of the micropillar height. Finally, the condensation heat transfer mechanism under different subcooling on the hierarchical surface is analyzed in detail.

Principal's Academic Supervision Management in Improving Teacher's Pedagogical Competence

The objective of this study is to find the principal's academic supervision management model and its implications for teacher academic improvement, also factors that influence the improvement of teacher pedagogical competence. This is important to study because teachers are still found imperfections in carrying out the learning process such as lack of mastery of classroom management and learning material. This research used qualitative approach with a case study type. Data collection techniques used observation, interviews and documentation. Data analysis used the stages of data condensation, data display, and conclusion drawing. From the analysis, it is known that the principal's academic supervision management model is carried out through four main stages, that consist planning, implementation, evaluation and follow-up supervision. So that, academic supervision management has positive implications for the teachers, that is teacher performance is getting better, which is characterized by teachers being more skilled in preparing learning tools, creative and innovative in implementing learning and evaluation, and better able to understand the character of the students. The factors that influence the improvement of teachers' pedagogical competence are education level, intelligence level, teaching experience, training experience, facilities and infrastructure, motivation, and principal supervision.

Technology Integration in Islamic Education: Policy Framework and Adoption Challenges

This study aims to find how the strategy for implementing technology integration in Islamic education is effective and how to overcome the challenges of adopting technology integration in Islamic education. The method used in this study is a descriptive qualitative approach. Qualitative descriptive research is research that produces descriptive data in the form of written or spoken words from people and observable behavior. The type of research used in this research is literature study. Data analysis was carried out using a descriptive analysis, by looking for patterns and finding themes that emerged from the materials collected. This study was analyzed by the stages of data collection, data presentation, data condensation and drawing conclusions. The results of the study show that the strategy for implementing technology integration in Islamic education is through improving technology infrastructure, training and professional development for teachers and education managers, preparing relevant digital Islamic content, and a technology-based curriculum approach. Addressing the challenges of adopting technology integration in Islamic education through increasing the accessibility of technology, developing technology training and certification programs for teachers, diversifying funding sources for technology integration, and a flexible approach to curriculum development and evaluation

A direct method to quantify methanol-soluble organic carbon for brown carbon absorption studies

The current research provides a newly developed method to quantify methanol-soluble organic carbon (MeS_OC) in aerosol samples. This analytical procedure allows an accurate separation of MeS-OC component, which is critical for the calculation of mass absorption efficiency (MAE) of ambient Brown Carbon (BrC) and consequently its climate relevant potential. The method includes extraction, filtering and condensation stages, leading to the preparation of a highly concentrated product in which MeS-OC can be precisely quantified by a Sunset Carbon Analyzer in a single analysis step. This method can be applied on aerosol collected using either high or low volume samplers, since a relatively small filter area is required for the determination. Furthermore, it eliminates any misestimation of the MeS-OC mass that may appear in other reported techniques that don't seem to include the precise separation of methanol-soluble fraction in their quantification process.•The mass quantification of methanol-soluble organic carbon is essential, contributing up to 50% to the absorptivity of organic aerosol (BrC) at shorter wavelengths.•The method provides a direct measurement of methanol-soluble aerosol components, resolving any potential uncertainties of previously applied methods.•The adoption of this direct quantification approach leads to a rationalization of past MAE estimates for BrC with implications for radiative transfer models.

MANAGEMENT OF ISLAMIC EDUCATION LEARNING IN TPA ACTIVITIES AT THE NURUL IMAN PAKEM MOSQUE

This research is motivated by the weak interest in learning children in religious education. In fact, in almost all places, many TPAs no longer organize teaching and learning activities because there are no teachers, so learning management in TPA based on Islamic education is very much needed. This study aims to interpret the management of Islamic education learning in TPA activities at the Nurul Iman Pakem Mosque. This research is a type of qualitative research with a qualitative descriptive research approach. Data collection techniques used are observation methods, documentation methods, and interview methods. The data analysis technique used is Miles, Huberman, and Saldana with the stages of data collection, data condensation, data presentation, and drawing conclusions. The results of the study show that learning management in TPA activities at the Nurul Iman Mosque has been going well and its implementation is in accordance with Islamic education. By taking steps according to the principles of management implementation, namely planning, organizing schedules, implementing Islamic education-based learning, as well as monitoring and evaluation.

Pemahaman Keagamaan Guru dan Sikap Beragama Anak Usia Dini di TKIT Al-Washliyah Hamparan Perak Deli Serdang

The development of religious attitudes in early childhood is almost completely authoritative, which means that it will develop under the influence of factors from outside the child. One of the factors that influence the religious attitude of early childhood is the religious understanding possessed by the teacher. The purpose of this study was to find out the teacher's religious understanding and religious attitudes of children in IT Al-Washliyah Kindergarten, and to find out what obstacles were found in building children's attitude of religious inclusiveness in IT Al-Washliyah Kindergarten, Hamaparan Perak District, Deli Serdang Regency. The method used in this research is qualitative with data collection techniques carried out participant observation, in-depth interviews. All existing data were analyzed by means of data condensation, data display and verification stages. The findings in this study are that the teacher's religious understanding determines the religious attitude of children. The teacher's religious understanding at TK IT Al-Washliyah prioritizes humanist values and inclusiveness, children are given freedom of thought, carry out activities carried out by children in religious activities by respecting differences in the way friends worship, helping friends who are in trouble, being friendly to friends who have different understandings with him. The inclusive attitude that children have in religion is an explanation of children's openness to tolerance, being able to accept and interact with friends who have different understandings and cultures than children.

Analisis Penerapan Peraturan Daerah Tentang Pengelolaan Sampah

The purpose of this study is to find out the application of policy No. 2 of 2011 concerning Waste Management. However, this research only focuses on the tourism area of Jakat Beach. This study uses a qualitative method, the research data is sourced from primary and secondary data, to analyze the data through the stages of data condensation, data display, verification and drawing conclusions. The results of the study show that the application of regional regulation No. 02 of 2011 concerning waste management in the coastal tourism area of the Jakat City of Bengkulu has not fully proceeded according to the purpose of the issuance of the regional regulation. Confirmed that there is no program for reducing and handling waste properly.
 Keywords: Waste management, community participation, tourist attraction

Profile of Junior High School Students’ Symbol Sense Thinking

Algebra is one of the mathematics materials in junior high school which is synonymous with symbols. There is a concept to assess students' sensitivity to symbols, namely symbol sense. One of the skills that must be possessed by students is thinking skills. The purpose of this study is to describe the thinking process of junior high school students from the symbol sense task. This is qualitative research. The steps in this research is (1) making instruments; (2) selecting subjects; (3) collecting data; and (4) analyzing data.The subjects in the study consisted of four ninth-grade students who had good math and communication skills. Data collection was carried out by giving symbols of sense assignments and followed by task-based interviews. The collected data was then analyzed using the stages of data collection, data condensation, data display, and drawing conclusions. The results showed that all subjects showed good thinking skills. It's just that a student is not good at drawing conclusions because he does not check the answers independently. For the ability of the sense of symbol students lack achievement in two characteristics of the symbol sense. Only two people demonstrated the "friendliness with symbol" characteristic well. This research only examines students' symbol sense thinking on two of the six characteristics of symbol sense. Other researchers can conduct research on the six characteristics of sense symbols thinking.

Experimental and Simulation Study on the Direct Contact Condensation of Saturated Steam on Moving Droplets at Sub-Atmospheric Pressure

The recovery of low-temperature steam is of great significance to the effective utilization of energy. Direct contact condensation (DCC) technology is an effective heat recovery method with a low initial investment. An evaluation of the direct contact condensation heat transfer technology of water droplets and low-temperature saturated steam (at an absolute pressure of 7.3–19.9 kPa) was performed using both experimental and computational approaches. In the experiment, an experimental device based on the weighing method was set up, and the direct contact heat transfer process between droplets with a normalized diameter of less than 21.7 and saturated pure steam at 40–60 °C was experimentally investigated. The transient condensation efficiency and heat transfer coefficient were calculated by the real-time mass variation. The rapid condensation stage was classified to discuss the effects of initial droplet diameter, pressure, temperature, and mass flow rate on the heat transfer process. A two-dimensional model was developed using computational fluid dynamics techniques and verified by experimental results. The results indicated that when the normalized diameter of the droplet is less than two, 1.6 is the optimal value for DCC. For droplets with a normalized diameter greater than two, the optimal droplet temperature and mass flow rate are 15 °C and 10 g/s, respectively.

CONSTRUCTION DESIGN FOR 4.5 BAR WATER TUBE TYPE BOILER USING SOLIDWORKS 2018 SOFTWARE

Distillation or simple distillation uses the principle of separating two or more liquids based on differences in the boiling points of each component. The distillation process itself has two main stages, namely the evaporation stage and the condensation or condensation stage. Therefore, distillation equipment uses a heating device in the form of a boiler and a cooler in the form of a heat exchanger. In the refining process, the heart of the distillation system lies in the boiler as a steam producing component. Therefore, the effectiveness of the boiler to produce saturated steam greatly determines the results of the refining process. To determine the power of the boiler, it is necessary to analyze the Boiler simulation calculations which include Von misses, displacement and safety factor simulations. The simulation is carried out at a pressure of 4.5 Bar which produces a Von misses max value. of 3.444 MPa, with the highest displacement value of 0.002 mm and the smallest value of 0 mm, and produces a safety factor value of 75. With this safety factor value, it can be said that the frame construction is safe.

Interpersonal Communication of the Election Commission as a Strategy in Efforts to Improve the Political Efficiency of the Fisherman Community in Manggar District, Belitung Timur Regency

The KPU's communication target in general elections is to increase voter participation by giving them their voting rights in elections. Preliminary studies show that around 69.8% of 40 fishermen in Manggar District, East Belitung Regency, are still apathetic towards political processes such as elections and feel that their involvement in politics will have no impact. Therefore, the KPU then implemented an interpersonal communication strategy in an effort to increase the political efficacy of the fishing community in Manggar District. This study uses a qualitative descriptive method with data collection techniques of interviews, observation, and documentation. Data analysis used the Miles and Huberman interactive model, which consisted of the stages of data collection, data condensation, data presentation, and drawing conclusions. The results of the study found that the East Belitung KPU, together with members of the Manggar District Election Committee (PPK), held face-to-face meetings and discussions with fishermen groups as part of the KPU's outreach activities to the public. KPU has been open and honest in conveying any information related to the election, understanding the problems felt by fishermen, and providing support in the form of providing election education and knowledge to fishermen. In addition, KPU has also tried to build an atmosphere and interaction with fishermen to foster equality, as well as a communication approach that considers fishermen important. External factors such as the social environment or friends in the community and the candidate's vision and mission that can prosper the fishermen are factors that also influence the fishermen's perceptions and evaluations of elections and the political system in Indonesia.

Design of The “Merdeka Belajar” Program for Students of High School Education

Merdeka Belajar Program is a policy that aims to encourage students to master various competencies and knowledge that are important and useful when entering the world of work. This article reveals the Design Of The “Freedom to Learn” Program For Students Of High School Of Education Miftahul Midad Lumajang. In this type of qualitative research with a case study approach, the data is obtained from interviews, observation, and documentation then analyzed with the condensation stage, data display, and conclusion. The research findings show that based on the results of the study, it can be concluded that several programs implemented at Madrasah Ibtidaiyah 01 Candipuro are active literacy and numeracy programs for low-grade students, active programs visiting the library, entering class programs, extracurricular programs, exam success programs, helping adaptation technology using laptops or Android, assisting in the preparation of e-reports, as well as other administration needed by the school. Some designed programs can be implemented correctly according to the targeted objectives.

A model system reveals how different linker histones direct chromatin to liquid-like or fibre-like condensed states.

In all organisms, metre-length DNA is packaged to a micrometre scale through charge neutralisation by basic polymers. In eukaryotes, the main condensing polymers are the histone proteins and the resulting protein/DNA complex is called chromatin. Chromatin organisation is hierarchical: the basic unit is the nucleosome, arrays of which form “beads on a string” that make up a 10 nm fibre. The second stage of condensation is achieved through binding of a different set of histones, the linker histones. This stage is more enigmatic and many proposals have been made for the structure that results, from a regular 30 nm fibre to a more heterogeneous, dynamic and liquid-like assembly with the 10 nm fibre as the basic unit. It is likely that both states are relevant: the liquid-like condensate allowing transcription, replication and repair, processes that would be shut down on adoption of a fibre-like state. The growing appreciation of dynamics in chromatin packaging has paralleled developments by us and others in our “bottom-up” understanding of the linker histone proteins themselves. We have developed an in vitro model system of linker histone and linker DNA, which although very minimal, displays surprisingly complex behaviour, and is sufficient to model the known states of H1-condensed chromatin: disordered complexes (“open” chromatin), dense liquid-like assemblies (dynamic condensates) and higher-order structures (organised 30 nm fibres). A crucial advantage of such a simple model is that it allows the study of the disordered state at high resolution by NMR, CD and scattering methods. Moreover, it allows capture of the thermodynamics underpinning the transitions between states through calorimetry. With these methods we can rationalise the distinct condensing properties of linker histone variants across species that are encoded by their amino acid sequence.