Tujuan penelitian ini untuk mensimulasikan perhitungan PPN wajib pajak UMKM terhadap kegiatan komersialnya dan membuat aplikasi web penghitungan PPN wajib pajak UMKM. Penelitian ini menggunakan ...pendekatan studi kasus. Data sekunder yang digunakan berupa data tarif PPN UMKM, tata cara pemotongan PPN UMKM, dan jumlah yang disetorkan atas Pajak Masukan (PM) dan Pajak Keluaran (PK). Teknik analisis data menggunakan metode deskriptif. Tahapan penelitian meliputi pengumpulan data, analisis data, dan pengembangan perangkat lunak. Hasil penelitian berupa aplikasi kalkulator pajak untuk membantu dan memudahkan para UMKM dalam melakukan perhitungan PPN nya.
Desain Kalkulator Analisis Usaha Tani Berbasis Android Nugraha, Adittia Hary; Thoriq, Ahmad; Safira, Mutia
Jurnal Keteknikan Pertanian Tropis dan Biosistem (Malang.Online),
8/2022, Letnik:
10, Številka:
2
Journal Article
Recenzirano
Odprti dostop
Analisis usaha tani merupakan suatu hal yang penting dalam perencanaan usaha tani untuk mengetahui harga pokok produksi, titik impas dan keuntungan usaha. Umumnya analisis usaha tani dilakukan ...menggunakan Microsoft excel dan hanya sebagian petani yang memahami perhitungan penentuan harga pokok produksi, titik impas dan keuntungan usaha tani. Penelitian ini bertujuan melakukan desain dan pembuatan Kalkulator Analisis Usaha Tani berbasis android. Metode yang digunakan adalah metode prototype. Hasil peneltian menunjukkan aplikasi Kalkulator Analisis Usaha Tani dapat berjalan dengan baik dan dapat digunakan untuk melakukan perhitungan analisis usaha tani.
Cellulose‐based triboelectric nanogenerators (TENGs) have gained increasing attention. In this study, a novel method is demonstrated to synthesize cellulose‐based aerogels and such aerogels are used ...to fabricate TENGs that can serve as mechanical energy harvesters and self‐powered sensors. The cellulose II aerogel is fabricated via a dissolution–regeneration process in a green inorganic molten salt hydrate solvent (lithium bromide trihydrate), where. The as‐fabricated cellulose II aerogel exhibits an interconnected open‐pore 3D network structure, higher degree of flexibility, high porosity, and a high surface area of 221.3 m2 g−1. Given its architectural merits, the cellulose II aerogel‐based TENG presents an excellent mechanical response sensitivity and high electrical output performance. By blending with other natural polysaccharides, i.e., chitosan and alginic acid, electron‐donating and electron‐withdrawing groups are introduced into the composite cellulose II aerogels, which significantly improves the triboelectric performance of the TENG. The cellulose II aerogel‐based TENG is demonstrated to light up light‐emitting diodes, charge commercial capacitors, power a calculator, and monitor human motions. This study demonstrates the facile fabrication of cellulose II aerogel and its application in TENG, which leads to a high‐performance and eco‐friendly energy harvesting and self‐powered system.
Cellulose II aerogels, with the features of high flexibility, porosity, and surface area, are integrated with triboelectric nanogenerators to yield green, sustainable energy harvesting, and sensing devices. By blending other natural polysaccharides to introduce electron‐donating and electron‐withdrawing groups, the performance of the cellulose II aerogel‐based triboelectric nanogenerators can be significantly improved and used for mechanical energy harvesting and motion monitoring.
The continuous exploration of clean‐energy technology is critical for the sustainable development of society. The recent work on the electric energy harvesting from water evaporation has made a ...significant contribution to the utilization of clean energy for self‐powering systems. Here, a novel metal–organic‐framework‐based hybrid nanomaterial is delicately designed and synthesized by the growth of UIO‐66 nanoparticles on 2D AlOOH nanoflakes. Due to the combined merits from the 2D morphology, which is inherited from the AlOOH nanoflakes, and the high surface potential, which originates from the UIO‐66 nanoparticles, the device made of the AlOOH/UIO‐66 hybrid nanomaterials can harvest electric energy from natural water evaporation. An open‐circuit voltage of 1.63 ± 0.10 V can be achieved on the prototype devices made of the hybrid nanomaterial. As a proof‐of‐concept application, a small electric appliance, e.g., a digital calculator, is powered up by a 3 × 3 device array connected in a combined series–parallel configuration.
A metal–organic framework (MOF)‐based hybrid nanomaterial is rationally designed and synthesized. Due to the 2D morphology and high surface potential, a prototype device made of MOF‐based hybrid nanomaterials can efficiently harvest the electric energy from water evaporation.
The development of flexible and stretchable electronics has attracted intensive attention for their promising applications in next‐generation wearable functional devices. However, these stretchable ...devices that are made in a conventional planar format have largely hindered their development, especially in highly stretchable conditions. Herein, a novel type of highly stretchable, fiber‐based triboelectric nanogenerator (fiber‐like TENG) for power generation is developed. Owing to the advanced structural designs, including the fiber‐convolving fiber and the stretchable electrodes on elastic silicone rubber fiber, the fiber‐like TENG can be operated at stretching mode with high strains up to 70% and is demonstrated for a broad range of applications such as powering a commercial capacitor, LCD screen, digital watch/calculator, and self‐powered acceleration sensor. This work verifies the promising potential of a novel fiber‐based structure for both power generation and self‐powered sensing.
A highly stretchable/fiber‐like triboelectric nanogenerator (fiber‐like TENG) is developed with a unique structure for effectively harvesting energy at a range of low frequency stretching motions. By optimizing the device structure, this fiber‐like TENG verifies its promising applications in both power generation for wearable electrics and self‐powered sensing for acceleration rates.
Antimicrobial peptides (AMPs) play a key role in the innate immunity, the first line of defense against bacteria, fungi, and viruses. AMPs are small molecules, ranging from 10 to 100 amino acid ...residues produced by all living organisms. Because of their wide biodiversity, insects are among the richest and most innovative sources for AMPs. In particular, the insect Hermetia illucens (Diptera: Stratiomyidae) shows an extraordinary ability to live in hostile environments, as it feeds on decaying substrates, which are rich in microbial colonies, and is one of the most promising sources for AMPs. The larvae and the combined adult male and female H. illucens transcriptomes were examined, and all the sequences, putatively encoding AMPs, were analysed with different machine learning-algorithms, such as the Support Vector Machine, the Discriminant Analysis, the Artificial Neural Network, and the Random Forest available on the CAMP database, in order to predict their antimicrobial activity. Moreover, the iACP tool, the AVPpred, and the Antifp servers were used to predict the anticancer, the antiviral, and the antifungal activities, respectively. The related physicochemical properties were evaluated with the Antimicrobial Peptide Database Calculator and Predictor. These analyses allowed to identify 57 putatively active peptides suitable for subsequent experimental validation studies.
V članku so predstavljene možnosti rabe kalkulatorja ekološkega odtisa v vzgoji in izobraževanju, še posebej z vidika razvijanja kompetenc za trajnostni razvoj. Čeprav je empirična raziskava potekala ...v visokošolskem prostoru (študentke in študenti geografije na Univerzi v Ljubljani), je v prilagojeni obliki mogoče opisani pristop k obravnavi posameznikovih pritiskov na okolje in možnosti njihovega zmanjševanja prenesti tudi v osnovnošolsko in srednješolsko prakso. Večina sodelujočih je v obravnavi ekološkega odtisa prepoznala pomemben prispevek k vzgoji in izobraževanju za trajnostni razvoj.
Estimates of footprint have rationalized the approach of environmental input-output assessments. In this study, the Ecological Footprint denotes the bioproductive area needed to sustain a population. ...We evaluated the living style standards of urbanized areas of Rawalpindi (i.e. Bahria Town and Gulraiz Colony) to calculate their Ecological Footprint. Comprehensive information was obtained from the population of these two areas by questionnaires and subsequent analysis using the Ecological Footprint calculator formulated by Redefined Progress. The Ecological Footprint of Bahria Town is 8.6 g ha (global hectares) and Gulraiz Colony is 6.9 g ha, which indicates that the urban population in these two areas are living a luxurious life style and consuming resources far more than the biocapacity of Pakistan. Another aspect that emerged from this study is that the biocapacity of Pakistan is unable to meet the needs of people due to population increase. Both Bahria Town and Gulraiz Colony have Ecological Footprints higher than national standard values, which illustrates that if all others lived like people in the studied areas then Pakistan's Ecological Footprints (4.7 g ha) would double and overpopulation will have further stress on the ecosystem. We propose maximum utilization of green resources and adaption of energy saving habits as immediate intervention measures to reduce the Ecological Footprint.
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•Urban population is competing for Pakistan's declining biocapacity.•Luxury and high per capita consumption are directly linked in newly developed urban areas.•Ecological Footprint of Bahria Town and Gulraiz Colony are 8.68 and 6.99 g ha respectively.•Carbon Footprint of these two urban areas is two times higher than national values.
Learning combinatorics material requires a digital learning medium that is able to support students' independent learning. The unavailability of digital media makes students experience difficulties, ...so independent learning cannot be carried out effectively. This research aims to develop a digital-based smart calculator application as a learning medium for combinatorics material that meets the criteria of being valid, effective, and practical. This research applies research and development (R&D) methods whose stages are the preliminary stage, planning stage, formative evaluation stage, prototyping stage, and large class trials (field tests). A total of 31 Bangka Belitung State Manufacturing Polytechnic TRPL students were the subjects of this research. The data collection techniques applied are expert validation sheets, effectiveness trial questionnaires, and practicality trial questionnaires. Expert validation activities provide evidence that the media is valid and ready to be used in learning. Based on effectiveness and practicality trials on 31 students, the results showed that the digital-based smart calculator application was classified as effective and practical. Based on the research conducted, it can be concluded that the development of a digital-based smart-calculator application is valid, effective, and practical, so that the digital-based smart-calculator application is ready to be used and applied to learning combinatorics material.BAHASA INDONESIA ABSTRACT: Pembelajaran materi kombinatorika membutuhkan suatu media pembelajaran digital yang mampu mendukung pembelajaran mandiri mahasiswa. Tidak tersedianya media digital ini membuat mahasiswa mengalami kesulitan sehingga pembelajaran mandiri tidak dapat terlaksana dengan efektif. Penelitian ini bertujuan untuk mengembangkan aplikasi smart – calculator berbasis digital sebagai media pembelajaran materi kombinatorika yang memenuhi kriteria valid, efektif, dan praktis Penelitian ini menerapkan metode penelitian dan pengembangan (R&D) yang tahapannya yaitu tahap preliminary, tahap perencanaan, tahap formative evaluation, tahap prototyping, dan uji coba kelas besar (field test). Sejumlah 31 mahasiswa TRPL Politeknik Manufaktur Negeri Bangka Belitung menjadi subjek dalam penelitian ini. Teknis pengumpulan data yang diterapkan adalah menggunakan lembar validasi ahli, angket uji coba keefektifan, dan angket uji coba kepraktisan. Kegiatan validasi ahli memberikan hasil bahwa media valid dan siap digunakan dalam pembelajaran. Berdasarkan uji coba keefektifan dan kepraktisan terhadap 31 mahasiswa memberikan hasil bahwa aplikasi smart – calculator berbasis digital tergolong efektif dan praktis. Berdasarkan penelitian yang dilakukan dapat disimpulkan bahwa pengembangan aplikasi smart – calculator berbasis digital tergolong valid, efektif, dan praktis sehingga aplikasi smart – calculator berbasis digital siap digunakan dan diterapkan pada pembelajaran materi kombinatorika.
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