Laboratories at the School / Graduate School of Engineering

Green Engineering for Global Environment lab aims to contribute United Nations SDGs (Sustainable Development Goals) achievement by developing engineering technologies, especially focuses on Goal 7: Affordable and Clean Energy, Goal 13: Climate Action, Goal 14: Life on Land, Goal 15:Life below Water. Our important perspective is to design the sustainable “nexus”, the interlinkage between Goals and targets, and we aim to inclusively optimize Social-Ecological Systems with multi temporal and spatial scales inb terms of “sustainable use of ecosystem services and biodiversity conservation towards establishing a harmonious society with nature. For our main technologies and tools, we have two main pillars;
(1) the mathematical process models of climate, ecosystems and society, and
(2) data science and artificial intelligence technology represented by machine learning. We are looking forward to your join.

For the maintenance of the environmental capacity, balance, and negotiation between the industrial activities and the natural environment, while considering the long term effects, is required. Because of that, it is necessary to understand and prepare for the effects caused by the dynamic characteristics of activities that sustain urban development, such as the emissions from mining, production, consumption, and disposal. Therefore, concerning the supply chain and lifeline issues, we develop methods to accelerate risk assessment of large amounts of chemical substances, estimate triggers and the effects on the human health and the environment of chemical substances released during natural disasters, ultimately, a risk assessment focused on the integrity of the ecosystems and the society. We conduct cross-disciplinary research, including the environmental impact assessment (life cycle assessment/LCA) of resource recycling of rare metals, due to the expansion of electric vehicles, among others, ultimately addressing the ever-growing societal risks associated with the development of industrial activities.

Our laboratory performs the research on the dynamics of heat, water and various pollutants in the environmental media such as atmosphere, sea, fresh water, sediment and soil for the multi-scale from indoor to global. Our objective is to estimate the impact of human activities on our lives and ecosystem, and to develop sustainable environmental technologies for creating a beneficial environment. Our research is based on three principles: Monitoring, Modeling and Management.

Our goal is to achieve sustainable urban development where the natural environment and human society coexist harmoniously. To accomplish this, we aim to gain insights into the relationship between humans, the environment, and nature, unravel the mechanisms of urban spaces and environments, and explore planning and design methodologies. By doing so, we strive to foster a sustainable urban environment that supports the coexistence of nature and human society.

Aiming to realize Society 5.0—an ultra-smart society—we are developing methodologies for environmental design that comprehensively integrate the relationships among humans, artifacts, and nature. In parallel, we pursue the advancement of environmental design systems through the sophisticated use of information and communication technologies (ICT), including AI, and engage in research and education in environmental informatics from a comprehensive engineering perspective.

Our laboratory focuses on science and technology for environmental conservation and purification as well as recovery of energy and resources from wastes/wastewaters using functions of microorganisms and plants. Biological technologies are ideal options as environmental technology due to the advantages of low cost, low energy and resource saving, and high environmental adaptability. Moreover, because microorganisms and plants can be recognized as renewable resources, i.e. biomass, it may be possible to develop a co-benefit process where environmental conservation and purification is linked to resource recovery/production. Our lab is developing a wide variety of techniques to solve the environmental problems just like a “supermarket” of environmental technologies.

The energy-demand side is vitally important while performing an analysis of our energy system. The main themes investigated by this laboratory are the urban energy metabolism, evaluation of heat system performance, modeling and management of energy demand, and active utilization of energy demand in smart grids.

We study functional materials for thermal management with the aim of solving energy problems and realizing sustainable society. Thermoelectric, nuclear, and thermal storage materials are studied. We have experiences in fabrication of various materials and in characterization of their thermophysical properties. Computational studies are also conducted to theoretically predict or validate the experimental results.

Our laboratory aim to solve the issues of the energy, the environment and the welfare by using radiation technology, magnetic force control technology and bioinstrumentation. The themes are as follows;
・The study on the evaluation of the effects of radiation on the materials, the biomaterials and the environment.
・The study on the environmental purification, the resource recovery and the minimally invasive treatment.
・The improvement of the quality of life (QOL) of human using bioinstrumentation.

Our laboratory focuses on developing technologies to address challenges in achieving a carbon-neutral society, particularly in the electric power sector. We aim to construct smart grids that facilitate the widespread adoption of renewable energy sources like photovoltaic power generation and electric vehicles.

We are studying novel techniques for medical diagnosis, therapy, and biological analysis using light including laser, on the basis of tissue optics, photobiology, and laser engineering. Research interests include less-invasive treatment with infrared lasers, photodynamic therapy for cancer, optical properties of biological tissues, and laser ionization mass spectrometry, and so on. We are developing the human resources which have profound understanding of both engineering and medical fields.

To utilize nuclear reactors more safely and economically, we have been developing more reliable management methods for equipment operation and new types of nuclear reactor by experiment and computer simulation.

We carry on research and education on the safety of nuclear energy, concept of new energy system and so on. At present, main concern is on experimental and numerical studies of hydrodynamics and heat transfer related to liquid metal flow and material behavior loaded by high heat flux. From these studies, we aim to contribute to development of new system of neutron source, fusion reactor and so on. Besides, we study on magnetohydrodynamics (MHD) in order to construct a concept of renewed safety system, heat exchanger and so on.

To achieve a safe chemical processing of spent nuclear fuels and radioactive wastes, we conduct research on chemical behavior of actinides and fission product elements in various electrolyte solutions.

We study radiation physics and engineering for advanced medical and industrial applications. The world’s most intense 14 MeV neutron source facility of Osaka University, OKTAVIAN was constructed by us in 1981. Studies of neutronics (neutron engineering) for Fusion Reactor and Boron Neutron Capture Therapy (BNCT) (new cancer therapy) have been carried out using the OKTAVIAN. Also, we develop new environmental and personal dosimetry methods.

By using three-dimensional printers for industrial use, artificial fish reefs with environmental affinities and petrous indoor walls for atmospheric control (Biotope Implants) are fabricated on investigation phases from mineral slags or inorganic shells discharged from industrial processes of steel refinements or food productions (Relict Resources).

The aim of this laboratory is to develop environmentally conscious smart technology to reduce the environmental impact of manufacturing. In particular, this research focuses on the substitution of materials used in electronics assembly with non-toxic eco-materials and on the enhancement of the reliability of fine-pitch high-density packaging.

In the Quantum Beam Material Process Engineering Area, to achieve ultimate nanofabrication, the quantum-beam-induced ultrafast phenomena of materials have been investigated using femtosecond pulse radiolysis and a time-resolved electron microscope.

Aiming to solve energy problems, we are developing materials and devices for energy storage, energy conversion, and electrosynthesis. Specifically, we are exploring new materials and reactions, analyzing reaction mechanisms, establishing new theories, and developing new devices.

Our research themes are aimed at developing new optical materials useful in both science and engineering. With the use of lasers and spectroscopy techniques, we investigate the optical properties of different materials.
We also implement other experimental and theoretical investigations
regarding these materials with various collaborators both inside and outside Japan. Our studies on short-wavelength light-emitting materials have led to the advancement of new applications and next-generation industries.

We are engaged in research into laser fusion and its applications.In order to realize laser fusion plants, we study for efficiently generating high-temperature / high-density (high pressure) state by laser irradiation with large-scale laser facility and analysis with multidimensional simulation codes. Since high temperature / high density conditions such as those obtained by nuclear fusion are comparable to the interior of planets and stars in the universe, we can approach these properties and origins.
Our research includes laser plasma diagnostics, high dencity physics and its simulation.
Additionally, we study the interaction of radiation with optical materials in view of their application to radiation detectors, scintillators and fusion materials.