The need for electrical energy is a primary human need at this time, the need for electricity is almost a necessity for both industry, offices, and the general public. The main problem of the power generation industry today is the use of oil as fuel for power generation which will increase the cost of electricity production. One of the government's efforts to reduce the use of fuel oil is to use oil fuel with the consideration that natural gas is more effective and efficient, its use is more practical and its emissions are more environmentally friendly when compared to solar power. (Harumsari, 2012). From these problems arose the idea of calculating the efficiency between a diesel-fired power plant (PLTD) and a gas engine power plant (PLTMG) powered by LNG (Liquedfied Natural Gas) and the resulting emission measurement results. The study conducted an efficiency analysis by carrying out a 50% and 75% load test of installed capacity and analyzing its environmental friendliness by taking the emission test results.

Pesatnya perkembangan bidang konstruksi beton mengakibatkan peningkatan kebutuhan bahan baku pembuatan beton yang didapatkan langsung dari alam. Kebutuhan akan material yang ramah lingkungan juga meningkat seiring dengan perkembangan teknologi bidang konstruksi, sehingga berbagai penelitian dilakukan untuk mencari alternatif bahan baku tambahan atau campuran pembuatan beton. Pemanfaatan limbah kerang darah (Anadara granosa) menjadi salah satu alternatif bahan yang dapat digunakan untuk dalam campuran beton yaitu sebagai salah satu material pengganti agregat kasar. Pada penelitian ini, cangkang kerang darah sebanyak 10% dan 13% ditambahkan pada campuran beton normal dan diaging hingga 28 hari, dan kemudian dianalisa karakteristik dan kuat tekannya. Dari hasil analisa didapatkan terjadi peningkatan kuat tekan beton hingga 103,67% atau 233,47 Kg/cm2 dengan penambahan 10% cangkang kerang darah pada campuran beton normal, sedangkan penambahan lebih dari 10% dapat menurunkan kuat tekan beton. Hasil karakterisasi Scanning Electron Microscopy menunjukkan struktur permukaan beton yang memiliki banyak pori dengan permukaan yang relatif kasar dengan adanya penambahan cangkang kerang darah. Dari hasil analisa dapat disimpulkan bahwa cangkang kerang darah dapat digunakan sebagai bahan tambahan beton dengan jumlah penambahan maksimum 10% dari berat keseluruhan beton normal.

Given the blossoming essence of social media marketing, literature does not delve into the complexities and consequences of small and medium-sized enterprises (SMEs). This paper seeks to advance awareness and provide an extensive analysis of the inspiration and efficiency benefits of social media provided by small and medium-sized businesses through a digital economy analysis. The conceptual analysis shows that interactivity, compatibility, and cost-effectiveness are reasons for social media use, ultimately providing advantages. SMEs of Facebook and Twitter profiles are used to analyze the conceptual paradigm suggested. This research reveals that the interdependencies of social media's motives and the consequences of social media use are optimistic but sporadic across small and medium-sized companies. SMEs selling physical goods prefer to use social media on cost-effective motivations, whereas small and medium-sized businesses tend to see interactivity as the main incentive. Furthermore, the study results indicate that Facebook and Twitter in a two-site story generate success gains for small and medium-sized enterprises' users. The study offers future analysis and management priority problems that strongly affect the academic and practice culture. Obviously, despite any bottlenecks in use, SMEs in developing markets tend to reap expanded social media gains through multi-platform marketing activities.