182 projects whose affiliated fair was here, most recently in 2026.
ISEF records a state or province for some finalists and not others, so these counts do not add up to the country total.
182 projects · showing 91–120
ISEF · 2020
Robotics and Intelligent Machines
Robots are entering an increasingly mobile era, yet hexapods, though promising high versatility, have been kept from widespread practical use due to low energy efficiency and unnecessary leg…
ISEF · 2020
Environmental Engineering
Eutrophication is a serious problem in many water bodies around the world. Eutrophication is caused by an accumulation of nutrient salts, such as nitrogen and phosphorus, which then stimulat…
ISEF · 2020
Energy: Sustainable Materials and Design
In recent years, wind power has attracted attention as a renewable energy source, but there are problems concerning its energy efficiency and stability. One of the keys to solving these prob…
ISEF · 2020
Chemistry
There are two themes in this research. Theme 1 is "a parallel measurement of temperature and the absorbance of chemical reactions accompanied by discoloration", and theme 2 is "simple and ac…
ISEF · 2020
Microbiology
Invasive mold infection can cause damage to various creatures, including arthropods. My previous observation that mold does not grow in the rearing containers of pill bugs (Armadillidium vul…
ISEF · 2020
Plant Sciences
Management of crop irrigation is a very important in modern agriculture. Here, we aimed to elucidate the diurnal water uptake mechanisms employed by rice, one of the most cultivated grains i…
ISEF · 2020
Robotics and Intelligent Machines
Drawing well-balanced pictures from scratch entails both plenty of time and proficient skills. In this project, I devised a novel deep-learning-based system, which provides automatic complet…
ISEF · 2020
Chemistry
Saccharides, a widely used major energy source for humans, turn brown when exposed to high temperatures, such as during cooking. The brown color is in part due to caramelization, a reaction…
ISEF · 2020
Animal Sciences
Humans and some other animals detect non-nutritive artificial sweeteners (NAS). To elucidate whether honeybees perceive ‘sweetness’ from NAS, NAS (sucralose and acesulfame-K) were given to h…
ISEF · 2020
Behavioral and Social Sciences
How can we assess customer satisfactions with online shopping? In this research, I conducted multiple analyses, including regression analyses, network analysis, frequency analysis, and struc…
ISEF · 2020
Physics and Astronomy
I investigated crater formation on planets and satellites by making a unique instrument to control terrestrial gravity. During crater formation, the crater diameter D and surface gravity gef…
ISEF · 2020
Plant Sciences
Fertilization in angiosperms is achieved by the delivery of sperm cells to the ovule through pollen tubes. In Torenia fournieri, which has a short pistil, pollen tubes are attracted to a sub…
ISEF · 2020
Plant Sciences
It has been thought that intracellular symbiosis evolved chloroplast and mitochondria, and understanding the mechanism is one of the major issues in biological science. Paramecium bursaria i…
ISEF · 2019
Animal Sciences
The sex of Hymenopteran insects is determined by allele combination of sex-determination locus. This is called complementary sex determination (CSD), where diploid males develop from fertili…
ISEF · 2019
Animal Sciences
Investigations based on environmental DNA (eDNA) have attracted considerable attention in recent years. For example, eDNA from water samples is a powerful tool for examining habitats of fish…
ISEF · 2019
Materials Science
The egg shells has the capacity to adsorb chemicals. The purpose of this study was to apply this property of egg shells to the maintenance of human health. I hypothesized that if egg shells…
ISEF · 2019
Plant Sciences
White clover (Trifolium repens) has compound leaves, usually with three leaflets. The plant occasionally produces leaves with four leaflets, the so-called four-leaf clover, which is a symbol…
ISEF · 2019
Biochemistry
We noticed a strange oscillatory color change when observing the acid hydrolysis of potato starch using iodine. This change involved repeating deep and pale blue colors in the reaction sampl…
ISEF · 2019
Robotics and Intelligent Machines
One day my family suddenly faced on “cancer” when my grandfather had serious lung cancer. I wished so much to save him if it was possible. I expect there would be better way to detect the ea…
ISEF · 2019
Chemistry
Aragonite is known to give plastics stronger mechanical property and heat resisting property than calcite when it is used for fillers. If aragonite crystals larger than 1.0 mm are available,…
ISEF · 2019
Earth and Environmental Sciences
Weather in mountainous area is changeable and difficult to predict, compared with that in the flat plains, because of the fluctuant local factors that influence the weather. Only little has…
ISEF · 2019
Physics and Astronomy
Microbubbles, tiny bubble smaller than 50 µm in diameter, have advantages over normal bubbles and are utilized in many fields. Among the various methods for producing microbubbles, we focuse…
ISEF · 2019
Animal Sciences Fourth Award
Due to having a cryptic habitat, very little is known about the life history characteristics and stridulatory devices found in runner plant bugs (Hallodapus spp.) and several other members b…
ISEF · 2019
Animal Sciences
C. semigranosa is a small bivalve with a shell length of about 1.5 cm predominating in exposed sandy beach. Intensive field observations revealed that C. semigranosa accumulated around 610 i…
ISEF · 2019
Physics and Astronomy
In this work, it is clarified how sound velocity slows down in corrugated pipes. The reduction of sound velocity, in particular, its dependence on geometrical structures of inner corrugation…
ISEF · 2018
Animal Sciences Second Award
The loss of biodiversity is a serious environmental problem, and factors such as global warming and deforestation due to human activities are considered to be primarily responsible for the m…
ISEF · 2018
Energy: Chemical
The Great East Japan Earthquake in 2011 caused disastrous damages in portable devices due to the lack of battery power supply. From the experience Mg-air-batteries have attracted attention f…
ISEF · 2018
Physics and Astronomy
The vortex-ring is known as a unique flow keeping ring shape and moving on by itself .We focus on a fascinating exception of this, bubble-ring. Bubble-ring’s specialty is so simple: the cent…
ISEF · 2018
Animal Sciences Third Award
Bulrush aphids, Schizaphis scirpi, colonize on leaves of cattail, Typha latifolia, while another Schizaphis species, S. acori, is usually found on leaves of calamus, Acorus calamus. Since th…
ISEF · 2018
Mathematics
We successfully extended Soddy’s theorem for the original Soddy’s hexlet to derive the number of spheres of what we refer to as the n-th generation hexlet: 6^n. The number of spheres composi…