Penggunaan baja karbon untuk memenuhi kebutuhan manusia semakin meningkat tiap tahunnya. Baja bukan termasuk material yang tahan karat, sehingga dapat mengalami korosi seiring berjalannya waktu, terlebih Indonesia merupakan negara tropis yang memiliki curah hujan dan kelembaban yang tinggi. Hampir semua sektor industri mempunyai permasalahan dengan korosi. Permasalahan yang timbul dapat berupa kerusakan, umur pakai barang yang tidak memenuhi harapan sampai pada faktor keamanan yang tidak memadai. Penelitian ini bertujuan mempelajari pengaruh komposisi pelapisan baja karbon rendah menggunakan material komposit PAni-TiO2.  Pelapisan komposit PAni-TiO2 pada baja karbon rendah dilakukan dengan metode elektrodeposisi pada medium asam dan garam LiCl.  TiO2 disintesis dengan metode solgel, sedangkan PAni disintesis dengan polimerisasi elektrokimia bersamaan dengan elektrodeposisi. Berdasarkan hasil penelitian laju korosi tertinggi dihasilkan Plat tanpa inhibitor dengan nilai 0,007359 mpy, sedangkan laju korosi terrendah dihasilkan oleh Plat 2 dengan nilai 0,003666 mpy.  Komposisi terbaik untuk melindungi Plat dari korosi adalah 10-3 M PAni dan  10-2 M TiO2.

A work accident can be defined as any unsafe act or condition that can result in a loss. Accidents caused by human actions that do not meet safety are called unsafe human actions. Meanwhile, accidents caused by unsafe environmental conditions are called unsafe conditions. The risk of work accidents is a major concern in the company. This is caused by the consequences that occur in work accidents to the deadly consequences of these accidents. This makes risk analysis even more important. One method that is relevant and has a consistency value calculation in analyzing the faktors that cause work accidents at PT. BSPL is the AHP method. Based on calculations using the AHP method, the main factor of work accidents at PT. BSPL is the human factor. This is in accordance with field observations, namely the lack of supervision from the company on the K3 culture for employees and some employees do not use complete PPE when working. To overcome the factors of work accidents that occurred at PT. BSPL, what companies need to do is improve the human factor mindset. Keeping workers safe at work and conducting OHS training.

- This study is to analyze the influence of entrepreneurial motivation factors in the era of 4.0 including family background, entrepreneurial education & training, courage to take risks, and the desire to work independently of the students of the AKPRIND Yogyakarta Institute of Science Technology. This type of research is ex-post facto. The population of all students taking entrepreneurship courses in the odd semester of 2020/2021 is 61 students. Data collection using a questionnaire. The validity test used the item score correlation with the total score, the reliability used Cronbach alpha, the data analysis technique used descriptive analysis and SEM. Data processing using the help of a computer program Lisrel. The results of this study indicate that there is a direct influence of 1) family background (X1) on the entrepreneurial motivation variable (Y) of 0.33 and the value of t = 6.33. 2) entrepreneurship education and training (X2) on the entrepreneurial motivation variable (Y) of 5.28 and the value of t = 5.38. 3) courage to take risks (X3) on the entrepreneurial motivation variable (Y) of 0.24 and the value of t = 4.87. 4) the desire to work independently (X4) on the entrepreneurial motivation variable (Y) of 5.22. While the indirect effect of variable 1) family background (X1) on the courage to take risks (X3) is 0.26 and the value of t = 4.28. 2) entrepreneurship education and training (X2) on the risk-taking courage variable (X3) of 0.14 and the value of t = 2.27. 3) family background (X1) on the variable desire to work independently (X4) of 0.27 and the value of t = 4.07. 4) entrepreneurship education and training (X2) on the variable desire to work independently (X4) of 0.13 and the value of t = 1.72.

Data dari BPS menunjukkan masih sangat sedikit usaha yang memanfaatkan pemasaran online. Berdasarkan wawancara singkat dengan para pelaku usaha anggota OK oCE ADMA diketahui bahwa banyak UMKM yang terdampak selama pandemi COVID-19. Penjualan mereka mengalami penurunan selama pandemi berlangsung, karena mereka tidak dapat membuka usaha secara offline akibat adanya pembatasan sosial berskala besar. Selama ini usaha yang mereka jalan mayoritas masih mengandalkan pemasaran secara offline. Penggunaan media sosial sebagai sarana promosi pun belum dimaksimalkan dengan baik. Metode yang digunakan adalah penyuluhan sekaligus praktek pembuatan Whatsapp Bisnis. Dari hasil penyuluhan yang dilaksanakan oleh pengabdi, pelaku bisnis telah memiliki Whatsapp Bisnis bagi usaha mereka masing-masing. Namun pelaku bisnis perlu melengkapi pembuatan katalog untuk sarana pemasaran online produk mereka

In this study, the electrical properties of exfoliated graphite (EG) with copper addition is reported. Firstly, EG samples were synthesized using electrochemical exfoliation of the pre-treated graphite sheet then combined with various copper concentrations. X-Ray Diffraction (XRD) characterization indicated that the composites of EG, Cu, and Cu2O were formed. A higher Cu2O amount obtained when the higher concentration of copper precursor was added in the EG. Scanning Electron Microscopy (SEM) images showed that more particles with larger sizes were anchored on the EG surface as higher copper concentration. The electrical properties of the samples were measured using the four-point probe method. The highest electrical conductivity of 37.86 S/cm was produced in the EG sample with 1 wt.% of copper addition. The result reveals that the optimum copper addition can increase the electrical properties of EG.