<p><em>Dalam industri modern yang semakin sadar akan lingkungan, sektor konstruksi menghadapi tekanan untuk mengadopsi praktik lebih ramah lingkungan. Konsep lingkungan mengacu pada penggunaan limbah sebagai material penyusun bahan konstruksi. Menurut Badan Pusat Statistik Surakarta, total sampah dihasilkan tahun 2023 sebesar 120.011,77 ton, 13% diantaranya terdiri dari plastik atau sekitar 15.601,53 ton. Untuk itu diperlukan pengolahan alternatif konstruksi, sehingga penelitian...

<p><em>Transportation plays a crucial role in daily life, supporting the mobility of people, goods, and services. With efficient well-developed transportation infrastructure, travel time, vehicle wear, traffic congestion can be significantly reduced, while also fostering local regional economic development. However, alongside these benefits, has negative impacts, particularly form vibrations that affect surrounding environment. These disrupt comfort health community cause damage...

This research aims to analyse the role of mangrove ecosystems in reducing tsunami wave impacts on small islands Bunaken National Park. Numerical modelling was conducted simulate propagation under different scenarios, including with and without mangroves, using data tree density, width, coastal bathymetry. Spearman correlation analysis applied evaluate relationship between density width percentage height reduction. Results revealed there a strong positive (r = 0.79, P 0.00036) 0.87, 0.00045)...

Kecelakaan lalu lintas sebagian besar diakibatkan oleh pengendara yang melanggar aturan lintas. Dari jumlah korban kecelakaan, urutan pertama paling banyak dialami para remaja dan dewasa muda (Yogatama, 2013). Tujuan penelitian untuk mengetahui karakteristik sepeda motor pengaruh pelanggaran terhadap potensi kecelakaan pada motor. Metode menggunakan analisis jalur dengan program AMOS 18.0. Pengumpulan data kuisioner skala likert diberikan kepada responden. Responden terdiri dari 360...

<span lang="EN-US">Implementation of vaccines, mosquito repellents and several Wolbachia schemes have been proposed recently as strategies against dengue. Research showed that the use vaccine repellent is highly effective when implemented to individuals who are in area with high transmission rates, while bacteria strongly low rates. This research show a three-strategy combination cope dengue using mathematical model. In model construction, parameters not yet known, therefore genetic...

<p>Kebisingan kereta api didefinisikan sebagai bunyi yang keberadaannya tidak dihendaki dan dirasa mengganggu akibat dari kegiatan operasional dalam tingkat waktu tertentu. Kebisingan adalah salah satu bentuk kebisingan aktivitas transportasi. Peningkatan berlangsung jangka panjang memiliki pengaruh terhadap kerusakan indera pendengaran, kenaikan denyut nadi gangguan komunikasi. Penelitian ini bertujuan untuk mengetahui intensitas di kawasan pemukiman sekitar bantaran rel api....

<span style="vertical-align: inherit;"><span inherit;">Kebutuhan akan transportasi cepat semakin bertambah berbanding lurus dengan mobilitas yang sangat tinggi. </span><span inherit;">Masyarakat Indonesia memiliki minat tinggi pada kereta api sebagai moda transportasi. inherit;">Kereta keunggulan dibandingkan darat lainnya, yaitu: waktu tempuh cepat, fasilitas lengkap dan jadwal pasti. inherit;">Namun demikian, masih kekurangan yaitu polusi udara atau...

The effects of climate change on the environment, human health, and economy are significant. Global warming primarily caused by emissions greenhouse gases, especially carbon dioxide. In response, Sebelas Maret University, an Indonesian higher education institution located in Surakarta, Central Java, established Emission-Free Day, held first Friday every month beginning July 2020. This study aims to evaluate efficiency Day achieving 2030 emission reduction goals. analyzes effect reducing from...

The increase in traffic growth is line with the transportation demand. Moreover, freight movement very important to support economic and business urban area, especially developing countries, including Indonesia. In addition its beneficial impact, can also cause a serious problem, such as congestion, air pollution, infrastructure damage. Such problems be anticipated by good planning. Studies related planning modelling Indonesia are few hence we interested doing research about impact of on...

Abstract Quality control is the activity of management to measure quality characteristics product, compare it with specifications or requirements, and take appropriate action if there a difference between actual appearance standard. Every company needs an operational system that can indicate overcome defective damaged products, must in each its production processes. This study aims determine actions should be done by reduce product failure. The research subject used case at company, this...

Cholera is an acute diarrhoeal infection caused by bacteria Vibrio cholerae. The SIQRB (Susceptible-Infected-Quarantined-Recovered-Bacteria) epidemic model with a control function studied to analyze the dynamics of cholera. represents fraction infected individuals that are submitted treatment in quarantine until complete recovery. One drawbacks mathematical modeling presence parametric uncertainties. Designing strategy used accommodating these uncertainty factors drives development robust...

An ideal road infrastructure has a low cost for maintenance and better performance of the roads drainage systems. The disintegrated system between is major cause an increasing cost. Therefore, this research aimed to investigate impact towards in This paper located Surakarta which was divided into eight catchment areas. main variables are roads, were analyzed using regression. These variable data obtained from total per year allocated by City Government on urban local budget 2013 2017....

Pavement conditions will reduce the level of service over time. It is characterized by occurrence structural damage road pavement layers in which neglect for a long period can worsen condition that affect traffic safety and comfort. Road performance determined based on requirements functional condition. The conditional relate to roughness, surface aggravation, while strength or carrying capacity serving load flow. aim this research evaluate flexible south arterial Yogyakarta provide...

PSO is a computational optimization method motivated by the social behavior of organisms like bird flocking, fish schooling and human relations. one most important swarm intelligence algorithms. In this study, we analyze convergence when it applied to with-in host dengue infection treatment model simulation in our early research. We used construct initial adjoin equation solve control problem. Its properties input on continuity objective function ability adapting dynamic environment made us...

Consideration of human mobility is essential for understanding the behavior COVID-19 spread, especially when millions people travel across borders around Eid al-Fitr. This study aims to grasp effect mass exodus between regions on active cases through a mathematical perspective. We constructed multiregional SIQRD (susceptible–infected–quarantined–recovered–death) model that accommodates direct transfer from one region others. The rate was estimated using proposed Dawson-like function, which...

<p>Pembangunan jalan tol Solo-Ngawi dilakukan untuk mempersingkat waktu tempuh perjalanan. Jarak perjalanan melalui arteri sepanjang 90,25 km sedangkan 86,4 km. Penentuan tarif disesuaikan dengan kemauan membayar (<em>Willingness To Pay</em>) calon pengguna tol. Oleh karena itu, tujuan penelitian ini adalah mengetahui nilai <em>Willingness Pay</em> (WTP) terhadap Solo-Ngawi. Penyebaran kuisioner <em>stated preference</em> kepada kendaraan pribadi...

Abstract Human Immunodeficiency Virus (HIV) is a type of virus which attacks CD4 + T cells. Insufficient numbers cells will affect the performance immunity systems so that someone become more risky to have AIDS or other diseases. HIV phenomenon modelled as nonlinear system with disturbance, but there no exact method solve problems related analyzing control treatment. Thus, approximated into bilinear by using Carleman Bilinearization method. A robust H ∞ controller designed input accomodate...

Abstract Slamet Riyadi Street is the main street in Surakarta. It located city center, which connects activity center or CBD. The rapid development of activities needs to be balanced with adequate facilities and infrastructure related existing pedestrian paths’ maintenance rehabilitation. This research uses walkability index method compares walking comfort assessment based on Global Walkability Index variables SE PUPR 02/SE/M/2018 variables. findings showed a very significant difference...

One of the serious transportation issues is congestion since it can cause derivative problems in human's life, such as pollution and economic losses. Congestion occurs when road capacity less capable to handle traffic volume. Surakarta City surrounded by Boyolali Regency, Sukoharjo Karanganyar Regency. It makes a lot freight from outside city, which ultimately increases The objective this research was estimate origin-destination (OD) matrix, find out network performance due represented...

Speed bumps have been installed by the community on streets of Surakarta city residential area in various sizes to reduce speed vehicles passing through street order protect citizens. This paper will analyse correlation between bump dimensions and observed field. research was conducted taking samples from areas observing decrease effective at a distance 8 meters before bumps. The independent variables this study are width height (cm) dependent variable is (km/h). Data were analysed using...

The bioactive compound mangiferin is known for its inhibition of fibrosis, a process that reversible as result liver injury. In this study, we aimed to explore the possible antifibrotic effect through mRNA expression transforming growth factor beta (TGF-β), which primary profibrogenic cytokine. We induced fibrosis in rats by intraperitoneally injecting them with thioacetamide 200 mg/kg three times per week 5 weeks. gave orally at dose 50 mg/kg/day and 100 had following four treatment groups:...

Dengue is a very dangerous disease in the tropic and subtropic areas. This transmitted through bite of an infected female Aedes Aegypti. In this study, optimal control dengue model will be discussed by applying 3 strategies, there are vaccination, repellent, both them. A epidemic was built without with assumptions given facts obtained researchers. Then from model, equilibrium point formulated stability evaluated. The next discussion to determine minimize costs implementing controls....

The Hand-Foot-Mouth Disease (HFMD) is a contagious infectious disease which very common in young children. A recent outbreak of this not only caused health problems, but also social and economic problems many countries. In paper, an SEIR (Susceptible-Exposed-Infectious-Recovery) epidemic model proposed to describe the dynamics HFMD transmission. equilibrium sought, basic reproduction number found, local stability analyzed via characteristic roots Jacobian matrix. Then, designing...

The Intergovernmental Panel Climate Change (IPCC) states that transportation contributes 13.1% of emissions (IPCC, 2006). Magetan Regency plans to support Indonesia in reducing by 20% 2040 analysing and mitigating greenhouse gas (GHG) generated the sector. analysis was conducted calculating based on traffic volume survey data fuel oil (BBM) used obtain amounts generated. From analysis, it found CO2 sector amounted 3,105,318.08 tons/year 2020 had potential increase 3.31% per year. As...