Tohoku Techno Arch Co., Ltd. List of Products and Services

In order to realize the automation of the loading work of sediment from the backhoe to the dump truck, it is necessary not only to predict the stop position of the dump truck with respect to the backhoe, but also to predict the timing when the backhoe completes the preparation for loading. By moving the dump truck according to the loading timing, the unnecessary waiting time can be reduced, and the loading work can be realized smoothly. However, it is difficult to distinguish these work processes because the back hoe includes the same operation (For example, the action of scooping up soil and sand or the action of turning) when leveling sediment and loading.　 In the present invention, motion data are obtained from sensors attached to the back hoe at multiple locations, and a hidden Markov model (BP-HMM) can be used to extract patterns of primitive operation and predict loading timing.

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In recent years, attention has been focused on the development of technologies for effective utilization of sustainable energy from the viewpoint of global environmental protection. It is desirable to construct a heat recovery system that effectively utilizes low-grade waste heat of 100 to 200ºC, which accounts for most of the waste heat from factories. To realize this, various heat storage materials have been proposed. However, as the heat absorption/release reactions generally involve large changes in the crystal structure, the slow reaction rates and irreversibility of the reactions have been challenging issues, especially in the low temperature range. 　 The present invention makes it possible to provide a heat storage substance that can accommodate a large amount of heat even in a low temperature region of low-grade waste heat. The research revealed that the layered manganese dioxide, which has long been used as an electrode material in batteries, can repeatedly absorb and release heat by releasing and absorbing environmental water at a sufficiently rapid rate.

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Submicron-sized magnetic particles are expected to be used as materials for high-frequency equipment operating at several GHz. Demand for submicron-sized magnetic particles is increasing amid the increasing use of 5G and the challenge of suppressing high-frequency noise. However, it is generally difficult to produce submicron-sized particles. For example, in a top-down method such as grinding raw materials, the production of micron-sized particles is limited, and even in a bottom-up method such as reducing and depositing metal ions, microparticles aggregate to form micron-sized secondary particles. In addition, it is difficult to control the composition when reducing multiple metal ions and depositing compound microparticles. The present invention relates to a method for producing submicron microparticles of Fe-Ni-B and Fe-Co-B soft magnetic materials. As shown in the upper right panel, it is characterized in that a true spherical primary particle without agglomeration is formed, and the composition can be easily controlled. The right panel shows the frequency characteristics of the complex permeability of the fine particle. Since the µ'' becomes near 0 up to 1 GHz and shows a peak in a few GHz band, the following applications can be expected.

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In the recovery of underground resources such as oil and geothermal energy, water flows from an injection well and fluids containing resources are pumped from a production well. There are multiple channel networks from an injection well to a production well, each having different fluidity. Since fluid preferentially flows through channel networks with high fluidity, there has been a problem that resources cannot be efficiently recovered from channel networks with low fluidity. Conventionally, in order to recover more resources from channel networks with low fluidity, it is necessary to drill additional wells, but each well costs several hundred million yen. 　The present invention has found a method to reverse the magnitude of the flow performance (flow velocity) of each channel with different fluidity. In other words, the present invention is expected to increase the fluidity of channel networks with low fluidity and contribute to efficient resource recovery.

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In quantum annealer, the optimization problems are solved by finding the minimum value of the cost function with a form of quadratic function because the current quantum annealer uses interactions only between neighboring quantum bits.　 The technology in this invention is capable to handle equations containing 3rd order and higher terms, including nonlinear We propose a potential application to neural networks to find an optimal binary neural network, which has low power consumption in comparison to the ordinary neural network.

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Recently, almost all combinatorial optimization problems are represented by constrained quadratic programming problems. However, in solving them, we further apply the penalty method, etc., transform them into unconstrained quadratic programming problems, and perform quantum annealing operations on the converted mathematical expressions. However, the conversion generated redundant variables that required a huge amount of computing resources, so that practical operations are impossible. 　We propose a method for solving all combinatorial optimization problems by quantum annealing, and it became possible to solve practically all optimization problem.

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With the increase of IoT device and the spread of 5G, noise electromagnetic wave emitted from device integrated transmission circuit has become a serious problem. Since the frequency of these noise electromagnetic wave is around 3GHz, it is required to develop an electromagnetic wave absorber that is efficient in 100-101GHz range. Currently, electromagnetic wave absorber made by mixing flat powder of FeSiAl alloy with resin is in practical use, but the absorption band (resonance frequency) is limited to MHz order. 　This invention is about an electromagnetic wave absorber that achieves an absorption from 3 to 12GHz band, with excellent noise suppression above 10GHz, based on the approach of shape magnetic anisotropy improvement. The large shape magnetic anisotropy is achieved by using FeCoCr alloy with a large two phase separation structure. As shown in right figure, electromagnetic wave absorption capacity and transmission attenuation ratio are twice of noise suppression sheet for 5G which is commercially available. Moreover, this electromagnetic wave absorber is useful from economic security viewpoint because it does not contain rare earth element.

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In the Internet of things (IoT) society, all kinds of objects will be connected to network such as internet. For an example of a factory, an access point equipped with multiple antenna elements installed at the base of a machine tool can track a sensor node on an object attached at the extremity of machine tool arm moving at relatively high speed. A known method of capturing the position of the sensor node is to use the backscatter wave of the signal transmitted by the access point. However, there is a problem that sidelobe is generated near the modulation frequency signal of backscatter.　 　This invention is able to suppress the sidelobe generated near the backscatter modulation frequency signal that appears in the demodulated signal spectrum. The access point is characterized by demodulating the modulation signal by multiplying the received modulation signal with the transmitted signal. This enables suppression of sidelobe generated near the modulation frequency of the backscatter in the demodulated signal spectrum.

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　In recent years, as wireless IoT has become more popular, real time frequency band spectrum monitoring technology has been developed to avoid interference between different wireless IoT systems. The received signal of this technology is converted from analog to digital signal by multiple analog/digital converter, then the original spectrum is regenerated. However, current technology does not have low loss and low distortion tunable filter, so it is not possible to freely set the bandwidth with a single device. As consequence, the receiver cannot achieve Software Defined Radio. 　This invention is able to realize a software based spectrum regeneration processing. This frequency spectrum regeneration method does not use a bandpass filter to fold back noise removal, but samples the received frequency spectrum, generates a vector combining each frequency spectrum element and extracts a predetermined band by calculating a solution using an overdetermined decision type algorithm. This enables a software based spectrum regeneration process.

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β-Ti and conventional CoCr alloys are widely used for artificial joints because of their superior mechanical properties. Some β-Ti alloys show superelasticity and low Young's modulus; however, they have low wear resistance. Conventional CoCr alloys show excellent wear resistance, but they have very high Young's modulus, which is about 10 times that of human bones. Since low Young's modulus and wear resistance are properties with a trade-off relation, there has not been a biomaterial that realizes both. 　This invention is about new CoCr alloys that have an even lower Young's modulus than β-Ti alloys, which also boast high wear and corrosion resistance, and superelasticity. This invention shows a fatigue life of more than 10 million cycles up to a strain of 1.65% and it is expected to be the next-generation biological material. 　These alloys are characterized by a large elastic anisotropy. In the <100> direction, they show a Young's modulus of 30 GPa, comparable to human bones, making it suitable to use for artificial joints and bone plates. In the <111> direction, they have extremely high Young's modulus of 300 GPa, making it suitable to use for stents.

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The problem of electromagnetic noise entering to analog circuit from digital circuit in RFICs (Radio Frequency ICs) for portable terminals (smartphone, tablet, etc.) which are capable of ultra high speed GHz class communication, is becoming a serious subject. 　In order to measure high frequency magnetic field on IC chip,methods with "high spatial resolution" and "GHz measurement frequency" are necessary, but none of the existing high-frequency magnetic field measurement-methods (shielded loop coil type magnetic field probe, magneto-optical probe, giant magnetic resistive sensor, etc.) satisfy these requirements. 　This invention is about a high-frequency magnetic field measurement-device using a magnetic force microscope (MFM) probe, and the beating field method which uses the field undulation. Specifically, a configuration that enables the separation (removal) of electric field that interferes with magnetic field measurement, and a configuration that modifies the cantilever drive and detection component are added in this invention.

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Since lithium-ion battery using liquid electrolyte has risk of ignition and rupture, practical application of safe solid electrolyte is expected. Among solid electrolytes, those using polymers have an excellent ability of forming and processing. This allows to use different shape of polyelectrolyte, but high stress is applied to the electrolyte.　 　This invention is about a polyelectrolyte with excellent elasticity and flexibility. Since this polyelectrolyte can be highly elongated with little force, the applied stress can be easily dispersed, and shows high durability.

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Toothbrush, pulsatile water jet, ultrasonic scaler, dental raser and oral rinse are used to wash bio-film or cavity accumulated on teeth or surface of implant. However, while they can remove macroscopic bio-film, they can not completely remove bio-film accumulated in narrow space on rough surface of tooth or dental implant. In the result, number of dental extraction from peri－implantitis or periodontal disease is not small. This invention provides the oral cleaning device which can remove bio-film by using cavitation jet.

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Cavitation is a phenomenon where a liquid becomes an air bubble due to the decrease of saturated steam pressure of the liquid caused by pressure decrease occurred by the velocity increase of a liquid. In particular, group-row cavitation consisting of microbubbles produces a large impact force. Cavitation shotless peening which uses this phenomenon, has a smoother machined surface and higher fatigue strength than the method which uses steel balls (shot peening).　 　Operation in air is also possible without using a water tank, by injecting a high speed water jet into a low speed water jet.

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The measurement of elastic modulus, which is a fundamental parameter, is essential to characterize the material property. As an example of object with a simple linear shape, such as a stick, the elastic modulus can be obtained experimentally by tensile testing. 　Today, a wide variety of object with complex shape can be formed due to the recent development of 3D printer technology. On the other hand, the elastic modulus of such object with complex shape having mechanical anisotropy, was difficult to simply measure by the conventional method. 　This invention is about a simple method for measuring elastic modulus of object with complex shape having mechanical anisotropy. This invention compares at first the vibration mode obtained experimentally by the object resonance frequency using ultrasonic resonance method, with the estimated vibration mode. Then, the elastic modulus is determined after the inverse analysis so that the estimated vibration mode matches the experimental value. The elastic modulus is determined with high precision by applying an algorithmic tip to this comparison. The most significant feature of this measurement method is its simplicity since it requires only one vibration experiment and analysis to measure the 9 independent elastic modulus.

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During spectroscopy, various stray light over a wide wavelength range is generated due to the effect of the 0th order reflected light, the 2nd order diffracted light and other scattered light generated in the spectrometer, in addition to the 1st order reflected light of the input light. In particular, for a measurement where a strong input light such as laser is used as a light source to detect weak signal light from sample, the signal light is difficult to detect due to stray light. 　In order to reduce stray light in spectrometer, cut filter using dielectric film and double monochromator-type spectrometer with monochromators connected in series have been developed. However, those methods cannot remove stray light over wide wavelength range at once. 　This invention is about a spectrometer equipped with a mechanism that can eliminate stray light in a wide wavelength range (from near-ultraviolet to near-infrared). The right figure shows the observed higher harmonics from the superconductor using this invention. Among the superconductor higher harmonics, the 3rd harmonic (around 2.1 eV = 590 nm) can be clearly observed with any spectrometer, but the 5th harmonic (around 3.4 eV = 360 nm) can be observed with good S/N ratio only with this invention. In particular, the noise of this invention is reduced by more than 3 orders of magnitude compared to the other spectrometers.

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The Ca-rechargeable battery is expected to replace the Lirechargeable battery in the future, but there is no electrolyte having the essential characteristics for a rechargeable battery. 　This invention solves above problems and realizes an electrolyte solution for Ca-rechargeable battery with high Ca-ion conductivity, large potential window, and high stability of metal dissolution & precipitation against Ca with limited property degradation, using a novel composition halogen-free Ca salt.

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　In recent years, the data traffic on internet around the world has been increasing rapidly and there is a strong need to innovate the non-volatile memory for data storage. In particular, phase-change memory (PRAM) has been attracting attention since the practical use in storage class memory has already begun. In general, PRAM records ON/OFF at 2 states: crystal phase with low electrical resistance and amorphous phase with high electrical resistance. 　However, the operation requires the use of amorphous phase so the heat resistance is poor and generates high power consumption during melting to the amorphous phase. Actually, there is a high expectation for creating a non-volatile memory element which solve these issues. 　The most important feature of this invention is that the non-volatile memory material is in crystal phase for both ON/OFF status. Since this material does not require melting to the amorphous phase, it is thermally stable and has low power consumption. Therefore, a significant operating energy reduction can be realized. Moreover, it has excellent high-speed property because a large resistance variation can be obtained through phase change between the crystal phases. Tohoku University proposes 3 types of non-volatile memory material : 1 MnTe, 2 Nitride-based material, 3 Rare-earth material.

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　The development of thermoelectric conversion technology to extract electricity from waste heat is being actively pursued. Mg2Si is a thermoelectric conversion material suitable for the use of industrial waste heat since the thermoelectric conversion efficiency achieves its maximum value at around 300ºC environment. 　However, the heat is often leaked due to its high thermal conductivity so the conversion efficiency is not as high as expected (cf. right formula). There is a report that the thermal conductivity was decreased by compacting Mg2Si powder into pellet and making it porous, but since the electrical conductivity was also reduced due the grain boundary, the conversion efficiency was not increased. 　This invention is about a Mg2Si porous film that solves the above issue.

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Recently, in the field of quantum computation for the selection of optimal routes for navigation, disaster evacuation, production lines, logistics, etc., the conventional method needed first to specify a cost function, then was able to obtain the optimal solution by ordinary computers and quantum annealing. However, the optimal solution at a given cost function was difficult to adapt to the ever-changing situation and to extract the optimal route. This invention is about a technique to solve the aforementioned issues by a mechanism that allows the cost function to be flexibly changed.

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In recent years, with the diffusion of the wireless Internet of Things (IoT), interference between different IoT systems are reported. In order to avoid those interferences, real-time frequency detection techniques are used to monitor signals and noise in the IoT frequency band in milliseconds level. However, monitoring these bands in real time all at once using Nyquist sampling is not easy because the high-speed analog-to-digital converter (ADC) that exceeds 12 Ghz is necessary. This invention made possible to monitor in real-time several different frequency bands with a real-time frequency monitor using an undersampling reception method by following steps: the step of obtaining a frequency spectrum from 0 to the Nyquist frequency, the step of generating a frequency spectrum by reversing the data at each Nyquist frequency, and the step of performing a minimum value calculation on each of the obtained above data to generate a single frequency spectrum which reproduces the received frequency spectrum.

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Superelastic alloy can instantly return to its original state after plastic deformation when the force is removed. However, a repeated plastic deformation leaves a residual strain that cannot be ignored. This invention is about an elastic alloy having a large elastic strain over 4% and Young's modulus less than 25 Gpa, which remains in the elastic range even a stress up to 600 Mpa is applied.

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It is ready to provide the technology package for Micro- and Nano-satellites around the earth, including know-how of hardware, operation software, evaluation technique, man-made satellite launching system, (a part of IP right of) termination control technique (de-orbit from orbit when missions finished). It is also possible to provide unique service by using the small satellite technologies to conduct customer designated missions.

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Conventional superelastic and shape-memory alloys are generally composed of elements having high specific gravity, and the ones composed of lightweight elements have not been reported yet. Although superelastic and shape-memory alloys for medical applications are being intensely investigated, a typical TiNi alloy (Nitinol) is still difficult to apply to patients owing to allergic effect caused by nickel. 　The present invention provides superelastic and shape-memory alloy having the specific gravity less than one third of Nitinol by using magnesium. As well known as the good biocompatibility of magnesium, the alloy is expected to be applied to medical field.

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　IRS (Intelligent Reflecting Surface) is known as a means to improve network performance. IRS is a device with integrated metamaterial element. Electromagnetic wave incident on the device can be reflected in any direction by controlling metamaterial element. Normally, CSI (Channel State Information) is required to control IRS. However, IRS is a passive device and cannot send nor receive information. Therefore, a device to collect CSI must be installed separately from IRS and connected to IRS, which requires cost and technical burden.　 　This invention is able to provide a controller that can control IRS without the need of CSI. This invention has a control pattern selection unit that determines a control pattern corresponding to representative value that is in the same cluster as reference value based on reflection target and codebook that show correspondence between representative value and IRS control pattern, and a control unit that controls IRS based on pattern. The codebook classifies reference value into cluster, generates representative value in each cluster, and generates control pattern corresponding to the representative value.

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The international market price of neodymium has increased significantly in recent years. The reason seems to be the increasing demand for windpower generation and electric vehicle motor in China where the country is promoting decarbonization as a national policy. In addition, the perspective of economic security is discussed in Japan and there is a strong demand for magnetic material which does not contain rare earth. Low cost Fe-N magnetic material consisting only of iron and nitrogen has especially high expectation. In particular, α"-Fe16N2 which has BCT structure and predicted to have high magnetic saturation, has attracted much attention. 　However, α"-Fe16N2 is a metastable compound that crystallizes when Fe-N compound is annealed, and there is almost no report of its isolation as a bulk material. The only few reported cases mention about eutectic crystal of α"-Fe16N2 and stable phase, or the existence for only 10 days at 100°C, so there is no example of α"-Fe16N2 single phase stable isolation as a bulk. 　This invention is about the α"-Fe16N2 stable isolated powder. This magnetic powder shows a BHmax of more than 6 MGOe (48 kJ/m3), which is higher than ferrite and alnico. It also shows the saturation magnetization of 221 emu/g which exceeds metallic Fe, and the coercivity of more than 2 kOe (160 kA/m) which is higher than alnico and comparable to ferrite. Since this magnetic powder can produce magnet that outperforms ferrite and alnico without using rare earth, it is expected to be used in motor, etc. as an alternative to neodymium magnet which continues to rise in price.

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In recent years, the development of lightweight and strong spherical graphite cast iron (ductile cast iron) has been promoted from the viewpoint of CO2 emission reduction and fuel efficiency reduction for automotive parts. In addition, efforts have been made to make ductile cast iron with highly productive die casting from the viewpoint of manufacturing cost reduction. In conventional die casting, heat treatment is necessary to suppress the generation of chill. In addition, the number of spheroidal graphite cast iron produced was small, and the mechanical properties such as strength and elongation were not sufficiently obtained. The ductile cast iron in which the spheroidal graphite is further refined and made uniform in the as-cast state without heat treatment can be obtained by combining a technique for suppressing chilling by free nitrogen with a semi-solidification casting technique.

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　Recently, methane hydrate (MH) has attracted attention as an energy resource to replace conventional fossil fuels. Heating and decompression methods have been proposed to dissociate and recover methane gas from MH by heating or decompressing the MH layer. However, the heating method consumes more energy to heat water than the energy produced by the recovered methane gas. On the other hand, the decompression method has the problem that the MH layer freezes due to the endothermic reaction when the methane gas dissociates, and the methane gas cannot be recovered efficiently. 　In the present invention, we developed a system for recovering methane gas by drilling multiple wells, dissolving carbon dioxide, injecting heated seawater, and using the preheated injection well as a production well. In addition, by converting methane gas into electric energy and using the heat energy released at the time to recover methane gas, the system can be operated as a more efficient and environmentally friendly system.

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・ The water containing nanobubbles is expected to have practical effects. The combination with various reagents has also been shown to produce unique effects. In addition to washing, sterilization, and antiviral effects, attention has been focused on plant and animal cell activities. Applications in various fields such as environment, medicine, and engineering are being investigated.　 ・ In the invention, nanobubbles with a particle size of about 10 nm were successfully produced iron ions in the production process. The surface of the nanobubbles has an uneven structure of less than 2 nm as a nanoparticle (hollow nanoshell). ・ The hollow nanoshell is dispersed in an aqueous solution at a concentration of tens of billions/mL or more. Unlike other nanoparticles and quantum dots, no stabilizer is required. Since there is almost no cytotoxicity, it can also be applied in bio-medical fields for bioactive effects.

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・ By combining nanobubbles and manganese ion, we succeeded in producing a sterilization and deodorant based on strong oxidizing power. ・ Ozone water has a sterilization and deodorization effect, but the effect disappears within a few hours. The inventor succeeded in producing a new type of ozone nanobubble by combining ozone-containing microbubbles with manganese. This water has the same effect as ordinary ozone water, but it has very low cytotoxicity. Therefore, it can be used directly for living organisms. ・ In addition, by adjusting the pH and changing the raw materials of the above nanobubbles in the manufacturing process, we succeeded in greatly reducing the generation of precipitates . ・ It has also been confirmed that the nanobubble water containing permanganate ions produced by the invention has long-term stability, bactericidal effect, and no oral or cellular toxicity, high throughput manufacturing process. 　It is expected to be widely applied to deodorants and disinfectants.

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Rechargeable magnesium batteries (RMBs) have been developed as post lithium-ion batteries. Previously, only the Chevrel compounds were known to be available as a cathode material for RMBs. However, practical RMBs require cathode materials, which could deliver high capacity with higher electrochemical potential. 　The present invention provides cathode materials with a disordered rocksalt structure for RMBs. The novel chemical composition of the present material successfully enables reversible and substantial Mg intercalation, which has been previously believed to be difficult, especially in the rocksalt structure. The materials of this patent will expectedly yield cathode materials with higher capacity and electrode potential.

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Genome editing technology is attracting attention for the creation of new crop varieties, but until now, genome editing technology has produced only one stage phenotype mainly due to the loss of function of known genes. 　In this study, we propose a concept to control crop phenotypes in a multistage manner by precisely modifying the Conserved Noncoding Sequence(CNS). 　By taking advantage of CNS editing, we expect to produce cultivars with optimal traits.

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In a high-speed rotary pump such as used in a turbo pump for a rocket engine, cavitation occurs at the pump inlet. Therefore, a spiral auxiliary impeller with excellent suction performance called an inducer is installed in front of the pump main impeller to boost and transport stable liquid. Various techniques have been proposed to suppress unstable and asymmetric phenomena associated with cavitation in the inducer. However, conventional techniques have problems such as difficulty in machining, increased axial vibration and weight.　 The present invention has attempted to solve the above problems by providing a slit (notch) in the inducer and optimizing the conditions of the position, depth and width of the slit. Specifically, it has the following features. ・ Provide axisymmetric slits on each blade of the inducer ・ A slit is provided upstream from the throat entrance on the outer peripheral side of the blade. ・ The inside length of the slit in the radial direction is shorter than the opening width, and the shape is wider. With this configuration, it is possible to suppress the instability phenomenon while maintaining the step-up performance of the inducer.

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In optical quantum computation, a computation method called Gaussian boson sampling (GBS) is used, and light with the property of quantum superposition called single-mode squeezed vacuum(SMSV) is used as input light. In order to realize a large-scale GBS system, the silicon photonic wire waveguides are expected as a highly integrated platform. However, there are few examples of SMSV generation in the silicon photonic wire waveguides.　 　Generation of SMSV requires two-wavelength excitation light pulses, and there are prior technologies that synthesize the first and second optical pulses. However, the phase difference between the first and second optical pulses changes over time, makes accurate measurement of the SMSV impossible. Temporal fluctuations of noise photons mixed into the SMSV also inhibit accurate measurement. 　A special optical wavelength filter outputs the first and second optical pulses to a coaxial path, and by eliminating the temporal fluctuation of the phase difference, a stabilized SMSV is obtained by the present invention.

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Medical images are complicated and noisy. Device manufacturers are conducting R&D on denoising technologies using deep learning (DL). Unet is a popular model developed for medical image segmentation and has been used for image denoising. Unet as well as other DL models with higher prediction accuracies require large computational resources and have become a barrier to use in standalone devices for remote diagnosis or deployment of AI-solutions in mobile devices for smart digital medicine.　 　The "LWBNA-unet" of the present invention was designed with a focus on efficiency and reduction of computational resources. It succeeded in reducing weight by about 10 times as compared to the conventional Unet model. Similar to controlling the flow of information through a channel by changing its width, the LWBNA-Unet performs channel control by gradually decreasing the number of filters with attention to discriminate unnecessary features, which enables highly accurate segmentation of image features in complex and noisy images. The method is also capable of detecting and classifying diseases automatically with high accuracy under low computational resource environments. It is shown that the model has better capabilities of learning in terms of reproducibility and accuracy with smaller datasets as compared to conventional Unet and DeepLabv3+, models under same conditions.

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Wire harnesses (WHs), the main target of this technology, are mainly used in automobiles and consist of bundles of thin wires that connect each component and are responsible for transmitting electrical signals and supplying power. Increased demand is expected with the rapid growth of electric vehicles in the future, and the development of efficient recycling technology for used WHs is strongly desired. To secure domestic resources and realize a decarbonized society, it is vital to recycle not only metal wires but also plastic coating materials. Chopping or comminution treatment is a common separation technology for treating used WHs, while it has limitations for mechanically recycling recovered plastic coating because it contains fine copper particles that are impurities for recycling.　This invention enables the separation,　sorting,and simultaneous recovery of copper wires and polyvinyl chloride (PVC) coating without the formation of fine particles by applying moderate impact in the ball mill equipment after swelling the coating material with organic solvent.

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Titanium material is widely used in artificial tooth roots and artificial bones as a lightweight material exhibiting high fracture toughness, but it does not bond with bone. Therefore, a hydroxyapatite coating used as an artificial bone has been investigated on titanium material, and various coating methods such as plasma coating and chemical coating have been investigated as techniques for this purpose. The present invention relates to a nanosurfaced titanium substrate and a method for producing the same, which can induce self-assembly of nano-needle-like crystals of hydroxyapatite on the titanium substrate more efficiently than conventional methods.

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SAS can lead to the development of cardiovascular diseases and other complications, resulting in severe symptoms. However, the symptoms of SAS are challenging to recognize, and it is estimated that 1 in 20 people in Japan are potential sufferers. Patients with glaucoma are known to have a higher probability of concurrent SAS, making it beneficial to recommend SAS testing for these individuals to identify undetected cases. However, conducting tests on all glaucoma patients is not practical. This invention introduces a machine learning model and an app that incorporates this model, designed for ophthalmologists to easily assess the likelihood of glaucoma patients having SAS. More than 500 glaucoma patients were recruited and underwent basic ophthalmic examinations, along with the collection of age, gender, BMI information, and home sleep SAS testing for nocturnal oxygen saturation measurements. Patients whose nocturnal oxygen saturation dips below the baseline exceeded a specified threshold were defined as having SAS. The machine learning approach combines systemic and ophthalmic parameters to predict the occurrence of SAS. The app facilitates the input of systemic parameters, including responses to medical inquiries, and ophthalmic parameters, including visual field test results, thus enabling the calculation of the likelihood of having SAS with high accuracy.

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Mo material is excellent in heat resistance. Since Mo material is easily oxidized at high temperature, it is indispensable to form MoSi2 protective film to prevent it. As a conventional method, the pack cementation method is known. Although this method can stably form MoSi2 films, it requires processing conditions of 1000 ℃ or more and 10 hours or more, leading to high costs. The present invention relates to a method of forming a MoSi2/WSi2 film (e.g., 30 μm) on the surface of a Mo/W material by simply immersing a base material in a bath (e.g., 800 ℃. for 15 min.). According to this method, the largest advantage is that there is no restriction on the shape that can be treated. The base material processed into a product shape can be subjected to silicification treatment. The Mo material having the present invention has been confirmed to exhibit excellent oxidation resistance (see right table), and is useful as a more convenient silicification method.

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　Photocatalysts are materials that induce redox reactions under illumination. In particular, it is effective for downhill reactions (oxidative degradation of hazardous and pollutants) and titanium oxide (TiO2) which is UV light responsive, is already in practical use. However, TiO2 photocatalytic technology is limited to small amounts and low concentrations of substances based on the solar light spectrum, and there is a problem that oxidation degradation treatment similar to that under illumination is never induced in the dark conditions. 　In his research for application as a photoelectrode and photocatalyst for organic p-n junctions, the inventor found that organic p-n junctions can catalyze (= dual catalysis) the oxidation of thiols even in the dark conditions [1]. In addition, as a result of his intensive research, he succeeded in expanding the target of dual catalysis to formic acid, hydrogen peroxide, and hydrazine by supporting a cocatalyst on organic p-n junctions. 　Dual catalysis is a new type of catalysis that TiO2 does not have. The selection of organic p-n junctions and co-catalysts is expected to expand the application range and market size of catalysts for environmental purification applications.

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Photocatalysts are materials that induce redox reactions under illumination. In particular, it is effective for downhill reactions (oxidative degradation of hazardous and pollutants) and titanium oxide (TiO2) which is UV light responsive, is already in practical use. However, TiO2 photocatalytic technology is limited to small amounts and low concentrations of substances based on the solar light spectrum, and there is a problem that oxidation degradation treatment similar to that under illumination is never induced in the dark conditions. 　In his research for application as a photoelectrode and photocatalyst for organic p-n junctions, the inventor found that organic p-n junctions can catalyze (= dual catalysis) the oxidation of thiols even in the dark conditions [1]. In addition, as a result of the intensive research, it was found that the p-type semiconductor (FePc) in the organic p-n junction was oxidized and decomposed in the presence of hydrogen peroxide to produce a cocatalyst for hydrogen peroxide in situ, and as a result, dual catalysis by the organic n-type semiconductor occurred. 　Dual catalysis is a new type of catalysis that TiO2 does not have. The selection of organic p-n junctions and co-catalysts is expected to expand the application range and market size of catalysts for environmental purification applications.

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Photocatalysts are materials that induce redox reactions under illumination. In particular, it is effective for downhill reactions (oxidative degradation of hazardous and pollutants) and titanium oxide (TiO2) which is UV light responsive, is already in practical use. However, TiO2 photocatalytic technology is limited to small amounts and low concentrations of substances based on the solar light spectrum, and there is a problem that oxidation degradation treatment similar to that under illumination is never induced in the dark conditions. 　In his research for application as a photoelectrode and photocatalyst for organic p-n junctions, the inventor found that organic p-n junctions can catalyze (= dual catalysis) the oxidation of thiols even in the dark conditions [1]. In addition, as a result of his intensive research, he succeeded in expanding the target of dual catalysis to formic acid, hydrogen peroxide, and hydrazine by supporting a cocatalyst on organic p-n junctions. 　Dual catalysis is a new type of catalysis that TiO2 does not have. The selection of organic p-n junctions and co-catalysts is expected to expand the application range and market size of catalysts for environmental purification applications.

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・In a conventional liquid crystal display(LCD), when a large pressure is applied from the outside or a steep bending deformation is forced, the display image is disorderd cause of thickness variation of the liquid crystal layers, and the substrate spacer is damaged. ・Therefore, liquid crystals are difficult to apply to flexible displays because of such problems. ・The invention packs a liquid crystal material into robust microtubes and arranges them in a plurality to form a liquid crystal layer. ・Using such a structure, pressure force can be dispersed even when pressure is applied from the outside. ・It is expected to be applied to a robust and flexibile liquid crystal display.

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Water pollution is a serious problem on a global scale, and it is required to develop environmentally friendly technologies for the recovery and removal of pollutants with low energy consumption and without the use of large amounts of chemicals. One method of wastewater treatment is to remove pollutants using adsorbents. However, existing adsorbents have a problem that their adsorption capacity is lost due to the Debye shielding effect caused by salts contained in wastewater. 　The present invention relates to a novel adsorbent consisting of a copolymer of a monomer containing a cationic or anionic functional group and a monomer containing an aromatic group, which exhibits good adsorption performance even in wastewater with a high salt concentration. By using this adsorbent, it is expected to more efficiently and inexpensively remove chemical substances in industrial wastewater, especially ionic dyes contained in wastewater from textile dyeing factories, ink factories, etc.

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　Mastitis in dairy cattle is considered to be one of the most intractable diseases in livestock, and it is known that it leads to a decrease in milk production and an increase in treatment costs, resulting in a large economic loss. In order to reduce the economic loss, early detection of mastitis is essential. However, the PL test, which is an existing mastitis detection method, does not lead to early detection because mastitis already showing degeneration is used as a sample. Therefore, a Chemical Luminescence measurement method is regarded as promising. However, a special apparatus is required to measure the Chemical Luminescence ability, and from the viewpoint of economy and difficulty, it is not suitable as a routine method for each dairy farmer. 　The present invention makes it possible to provide a method and a biomarker that contribute to the early detection of mastitis in a simple and rapid manner. The present invention is characterized by comprising a step of detecting cyclophilin A in milk collected from the udder of a subject and a step of determining the occurrence or possibility of occurrence of a mammary gland disease based on the amount of cyclophilin A. When the amount of cyclophilin A in milk is larger than that collected from a healthy udder, it is determined that a mammary gland disease has occurred or is likely to occur in the udder of the subject.

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