From the April 2021 issue, the Journal of Society of Automotive Engineers of Japan willElectronic versionIt is published as. What you havecomputer,Tablet,SmartphonePlease see at.

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■Special feature□ Cars are made of “screws”

　In recent years, the latest technological trends such as electrification, driving support systems, and information networks are attracting attention in automobile development, and sophistication is also required in the fundamentals of automobiles: running, turning, and stopping.
　This issue focuses on the element "screws" that are necessary for automobiles, and is a special issue to help you reaffirm the function of screws. Please take a look.

[Learn about "screws"]
　・The story of "screw" that I can't hear anymore
　・Current status of screw fastening technology - technical issues and trends
　・Standardization of fastening screw parts ─ Quality assurance system and future development

[Make a “screw”]
　・Creation of ultra-high strength fail-safe bolts with excellent delayed fracture resistance
　・Internal thread processing using taps and recent trends
　・Plastic mechanics for plastic working analysis in screw manufacturing
　
[Use “screw”]
　・Mechanics and strength design of screw fasteners
　- Stiffness simulation of screw fasteners based on interface mechanics
　・Improvement of bolt tightening torque and initial tightening force distribution using confidence limit ellipse method
　・Direct control of tightening axial force of bolted bodies

[Loosening of “screws”]
　・Diagnosis of bolt looseness using reflected ultrasonic pulses
　・Analysis of accidents involving screw fasteners

■Hot Topics - A collection of trending topics

　・Development of causal search method based on CVT oil pump sound
　・Application of Isogeometric analysis to vehicle body structure
　・Improvement of non-recovery performance of small waste heat recovery device using high heat transfer SiC honeycomb
　・Development of distributed wave power generation system using slit breakwater
　・Changes in mobility in the post-corona era
　・Distance estimation using in-vehicle camera images using deep learning and camera geometry

■ Serialized articles

　・Technology window: innovation history
　　　　　　　Mr. Yasuo Shimizu (Tokyo Denki University)

　・Super world: phytoplankton Dicrateria rotunda that has the ability to synthesize hydrocarbons equivalent to oil
　　　　　　　Naomi Harada (Japan Agency for Marine-Earth Science and Technology)

　・Spotlight: Improving bus business productivity with request-based optimal route buses
　　　　　　　         Mr. Atsushi Oshita (Michinori Holdings), Mr. Hiroshi Nishijima (Via Mobility Japan)
　　　　　　　
　・Standardization activity report:Standardization activities related to sensor interfaces for self-driving cars
　　　　　　　　　　　　Mr. Seiji Takeda (Nissan Motors), Mr. Hiroshi Mizuno (Denso)

　・Formula SAE Japan's days and now: From local university students to working in Silicon Valley
　　　　　　　　　　　　　　　　　　　Mr. Koji Itano (OSARO)

■ Academic self-study activity report

　・Introduction of 2021 Hokkaido branch academic research activities

　・Introduction of 2021 Tohoku Branch academic research activities

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