Article
Orthopedics
Tomonori Sawada, Hiroki Okawara, Daisuke Nakashima, Shuhei Iwabuchi, Morio Matsumoto, Masaya Nakamura, Takeo Nagura
Summary: This study examined the effects of alternating heat and cold stimulation with different cooling rates on muscle hardness and subjective symptoms. The results showed that the 3:1 condition had the potential to improve muscle hardness and subjective muscle stiffness.
BMC MUSCULOSKELETAL DISORDERS
(2022)
Article
Orthopedics
Isabel de Almeida Paz, Graciane Taglian Rigo, Amanda Sgarioni, Bruno Manfredini Baroni, Viviane Bortoluzzi Frasson, Marco Aurelio Vaz
Summary: The study found that under submaximal contraction level, PC is more effective than AC in generating muscle fatigue, while there is no significant difference in discomfort level between the two.
Article
Thermodynamics
Uttam Kumar Mohanty, Abhay Sharma, Yohei Abe, Takahiro Fujimoto, Mitsuyoshi Nakatani, Akikazu Kitagawa, Manabu Tanaka, Tetsuo Suga
Summary: The study introduces a new overlapping double ellipsoidal heat source model for simulating the thermal behavior of AC square waveform welding process, and validates its effectiveness through numerical simulations. It analyzes the impact of welding parameters on thermal behavior and weld-pool geometry, revealing that increasing frequency can stabilize the arc at the expense of lowering peak temperature.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Engineering, Biomedical
Fatemeh Sadeghihassanabadi, Jonas Misselhorn, Christian Gerloff, Simone Zittel
Summary: This study aims to find the optimal cerebellar tACS montage with minimal side effects. The simulation and experimental data show that the jaw montage is the best choice for maximizing cerebellar stimulation while minimizing unwanted side effects.
JOURNAL OF NEURAL ENGINEERING
(2022)
Article
Construction & Building Technology
Jiansong Wu, Boyang Sun, Zhuqiang Hu, Letian Li, Huizhong Zhu
Summary: In recent years, extremely cold events have been frequent globally, posing a serious threat to human health and safety. A study was conducted to investigate the physiological responses and thermal sensation of humans in extreme cold environments. The results showed that the ear is the most sensitive to temperature changes and blood pressure increased significantly during cold exposure, while heart rate decreased. The establishment of a transition space can help alleviate the pressure stimulus of a large temperature difference, and there are functional correlations between local skin temperature and thermal perception.
BUILDING AND ENVIRONMENT
(2021)
Review
Microbiology
Kelsey E. Huus, Ruth E. Ley
Summary: Body temperature has a direct impact on the gut microbiota, influencing its diversity and stability, as well as affecting host factors like appetite and immunity.
Article
Materials Science, Multidisciplinary
Magdi F. Morks, Saden H. Zahiri, Xiao-Bo Chen, Stefan Gulizia, Alejandro Vargas-Uscategui, Ivan S. Cole
Summary: The diffusion of oxygen and nitrogen in cold sprayed titanium deposits significantly affects their mechanical properties. By optimizing deposition parameters and conducting heat treatment, a malleable and high-density titanium material can be obtained.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2022)
Article
Automation & Control Systems
Xiongfeng Zhou, Xiaobing Cao, Fan Zhang, Ji'an Duan
Summary: This paper investigated the thermal stress distribution in laser welding of Ti6Al4V and 2024-T4 alloys, demonstrating that the difference in material properties significantly affects the uniformity of thermal stress distribution. The combined experimental and simulation results verified the rationality of the coupled thermal-mechanical model used in the study.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Materials Science, Ceramics
Shenglin Kang, Xuetong Zhao, Jing Guo, Jie Liang, Jianjie Sun, Yang Yang, Lijun Yang, Ruijin Liao, Clive A. Randall
Summary: Thermal-assisted cold sintering process (TA-CSP) is applied to fabricate high dense alpha-Al2O3 ceramics with submicron grain sizes at low sintering temperatures, achieving comparable hardness and Young's modulus to conventional sintered samples.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Biotechnology & Applied Microbiology
Qi Wang, Jonathan Vachon, Bibin Prasad, Christine A. Pybus, Norman Lapin, Rajiv Chopra, David E. Greenberg
Summary: The combination of heat and antibiotics has been shown to have synergistic effects in eliminating biofilm, reducing bacterial burden significantly. This noninvasive method shows promise in reducing biofilm on metallic implants, with efficacy across different settings and potential for broader application.
NPJ BIOFILMS AND MICROBIOMES
(2021)
Article
Agriculture, Dairy & Animal Science
Rixin Gong, Lu Xing, Jingwen Yin, Yuqing Ding, Xiaotao Liu, Jun Bao, Jianhong Li
Summary: Intermittent mild cold stimulation improves energy metabolism and stress resistance in the livers of broilers, aiding in their adaptation to low-temperature environments. Appropriate cold stimulation enhances stress resistance and mitigates the negative impact of cold environments on broilers.
JOURNAL OF ANIMAL SCIENCE
(2023)
Article
Construction & Building Technology
Shahriar Abubakri, P. S. Mangat, Vincenzo Starinieri, Gilson R. Lomboy
Summary: Thermal curing is an effective method to accelerate the curing of cementitious materials and prevent frost damage during cold weather concreting. This study investigated the electric-thermal curing process of mortar at different temperatures and developed a theory to predict temperature increase based on applied electric parameters. The results showed that electric curing significantly increased the compressive strength of mortar and prevented strength loss due to increased porosity in cold conditions.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Biophysics
Elisaveta P. Petkova, Lyudmila K. Dimitrova, Francesco Sera, Antonio Gasparrini
Summary: The study in Sofia, Bulgaria found that cold temperatures had a greater impact on mortality than hot temperatures, with most temperature-attributable mortality due to moderate cold, followed by moderate heat, extreme cold, and extreme heat. Total mortality attributable to non-optimal temperatures was higher among females and individuals aged 85 and over.
INTERNATIONAL JOURNAL OF BIOMETEOROLOGY
(2021)
Article
Thermodynamics
M. M. Tokarev, I. S. Girnik, Yu. I. Aristov
Summary: This study tested a HeCol prototype under different climate conditions and found that higher specific power can be achieved in colder climates, reaching practical temperatures under closed-loop conditions.
Article
Construction & Building Technology
Lingshan Li, Xiaohua Liu, Tao Zhang
Summary: Solar energy is widely used for building heating in cold regions, with the performance of the system being significantly influenced by the heating terminal. This paper compares air supply and radiant floor systems, proposing a hybrid system for 24-hour diurnal heating. Simulation models show superior indoor temperature control and solar utilization efficiency compared to traditional systems.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Clinical Neurology
Shunsuke Kikuchi, Daisuke Nakashima, Yoshitake Yamada, Minoru Yamada, Yoichi Yokoyama, Arihiko Kanaji, Masaya Nakamura, Takeo Nagura, Masahiro Jinzaki
Summary: This study found a relationship between hip joint proximity area and sagittal balance parameters in healthy subjects. The anterior proximity group showed positive anterior spinal balance, which may contribute to anterior loading of the hip joint. The posterior proximity group may have a more posterior gravity line.
EUROPEAN SPINE JOURNAL
(2022)
Article
Cell Biology
Hiroki Okawara, Syoichi Tashiro, Tomonori Sawada, Keiko Sugai, Kohei Matsubayashi, Michiyuki Kawakami, Satoshi Nori, Osahiko Tsuji, Narihito Nagoshi, Morio Matsumoto, Masaya Nakamura
Summary: Body weight-supported treadmill training with the voluntary driven exoskeleton (VDE-BWSTT) has been shown to improve the gait function of patients with chronic spinal cord injury. This study indicates that VDE-BWSTT can effectively improve the trunk function of patients with chronic spinal cord injury, especially for older adult patients.
NEURAL REGENERATION RESEARCH
(2022)
Article
Clinical Neurology
Kazuya Kitamura, Narihito Nagoshi, Osahiko Tsuji, Satoshi Suzuki, Satoshi Nori, Eijiro Okada, Mitsuru Yagi, Morio Matsumoto, Masaya Nakamura, Kota Watanabe
Summary: By investigating the patients with cervical dumbbell-shaped schwannoma who underwent incomplete resection, it was found that age and the location of the remnant tumor margin were associated with tumor growth.
Article
Physiology
Hiroki Okawara, Tomonori Sawada, Daisuke Nakashima, Yuta Maeda, Shunsuke Minoji, Takashi Morisue, Yoshinori Katsumata, Morio Matsumoto, Masaya Nakamura, Takeo Nagura
Summary: Investigating the physiological responses induced by fatigue in athletes is useful. Wearable noninvasive sensors, such as sweat sensors, are compatible with fatigue evaluation due to their ease of use and ability to measure data repeatedly. This study found that the sweat lactate elimination curve is different in the fatigue state compared to the non-fatigue state.
PHYSIOLOGICAL REPORTS
(2022)
Article
Chemistry, Analytical
Tomonori Sawada, Hiroki Okawara, Daisuke Nakashima, Kaito Ikeda, Joji Nagahara, Haruki Fujitsuka, Sosuke Hoshino, Yuta Maeda, Yoshinori Katsumata, Masaya Nakamura, Takeo Nagura
Summary: A novel exercise modality combined with electrical muscle stimulation (EMS) has been reported to increase cardiovascular and metabolic responses. This study aimed to examine the effect of constant load pedaling exercise combined with EMS by measuring sweat lactate levels.
Article
Chemistry, Analytical
Yuta Maeda, Hiroki Okawara, Tomonori Sawada, Daisuke Nakashima, Joji Nagahara, Haruki Fujitsuka, Kaito Ikeda, Sosuke Hoshino, Yusuke Kobari, Yoshinori Katsumata, Masaya Nakamura, Takeo Nagura
Summary: The relationship between the onset of sweating (OS) and sweat lactate threshold (sLT) assessed using a new sweat lactate sensor was investigated. The study found that the OS was poorly correlated with the sLT, particularly in the early perspiration (EP) group. However, the sLT was strongly correlated with the blood lactate threshold (bLT) in both the EP and regular perspiration (RP) groups. The sLT can be used as a noninvasive and continuous alternative to the bLT, independent of early OS, but a late OS may affect the accuracy of the sLT.
Article
Chemistry, Multidisciplinary
Katsuhiro Mikami, Mitsutaka Nemoto, Akihiro Ishinoda, Takeo Nagura, Masaya Nakamura, Morio Matsumoto, Daisuke Nakashima
Summary: This study aims to predict the stability of orthopedic implant, specifically pedicle screws, by comparing it to the insertion torque. Laser resonance frequency analysis (L-RFA) is used to predict the insertion torque of pedicle screws placed in cadaveric bone. Machine learning analysis is optimized using a dataset with artificial bone, and combining artificial and cadaveric bone data improves prediction accuracy and reduces the influence of bone differences.
APPLIED SCIENCES-BASEL
(2023)
Article
Multidisciplinary Sciences
Yuki Muramoto, Daisuke Nakashima, Tsubasa Amano, Tomota Harita, Kazuhisa Sugai, Kyohei Daigo, Yuji Iwasawa, Genki Ichihara, Hiroki Okawara, Tomonori Sawada, Akira Kinoda, Yuichi Yamada, Takeshi Kimura, Kazuki Sato, Yoshinori Katsumata
Summary: A study was conducted to estimate the maximal lactate steady state (MLSS) using the sweat lactate threshold (sLT) in healthy adults. It was found that trained individuals had a higher MLSS based on sLT compared to untrained individuals. Trained participants were able to continue exercising even with a decrease in tissue oxygenation index (TOI) in the skeletal muscles.
SCIENTIFIC REPORTS
(2023)