Molybdenum disulfide(MoS_(2))is a widely used optoelectronic material with exceptional electrical,magnetic,optical,and mechanical properties.Due to the quantum confinement effect,high absorption coefficient,high surfa...Molybdenum disulfide(MoS_(2))is a widely used optoelectronic material with exceptional electrical,magnetic,optical,and mechanical properties.Due to the quantum confinement effect,high absorption coefficient,high surface-volume ratio,and tunable bandgap,nanoMoS_(2)-based devices exhibit size-dependent and novel optoelectronic properties,such as excellent photoluminescence and high anisotropic electrical,mechanical,and thermal properties.This review focuses mainly on the latest progress of optoelectronic device applications based on two-dimensional(2D)nano-MoS_(2).Various advanced devices,such as sensors,photodetectors,light-emitting diodes(LEDs),memory applications,and field-effect transistors(FETs)are considered.The review will provide a new perspective in promoting the development of 2D nanomaterial-based photoelectric applications.展开更多
BACKGROUND The most effective treatment for knee joint pain is total knee arthroplasty(TKA),but the risk of pain and swelling in patients after surgery is high.Ice application,ankle pump exercise and non-steroidal ant...BACKGROUND The most effective treatment for knee joint pain is total knee arthroplasty(TKA),but the risk of pain and swelling in patients after surgery is high.Ice application,ankle pump exercise and non-steroidal anti-inflammatory painkillers are the primary clinical treatments after surgery.However,long-term use of nonsteroidal anti-inflammatory pain relievers can easily cause gastrointestinal damage.Traditional Chinese medicine(TCM)ointments and tuina therapy integrate TCM and manipulation,which effectively promotes the penetration of TCM into the skin lesions,improves local blood circulation and inflammatory reaction and has good long-term effects on patients.AIM To evaluate the efficacy of TCM ointment combined with tuina therapy in the treatment of pain and swelling after TKA.METHODS The randomized controlled clinical trial enrolled 80 patients who underwent TKA via the same procedure.The patients were randomly divided among the treatment group(n=40)and the control group(n=40).The control group was given an analgesia pump in addition to oral painkillers as the postoperative intervention.The treatment group received TCM ointment with tuina therapy in addition to the analgesia pump and oral painkillers in the postoperative period.The following variables were recorded 3 d before surgery and 3 d,7 d and 14 d after surgery:Visual analogue scale(VAS)score;skin temperature;circumferences at 15 cm above and below the patella;maximum active knee flexion angle;and the knee injury and Osteoarthritis Outcome score(KOOS).RESULTS After treatment,VAS was significantly lower in the treatment group than the control group at 7 d(t=7.536,P<0.001)and 14 d(t=8.563,P<0.001).The skin temperature of participants in the treatment group was significantly lower than that in the control group at 7 d(t=2.968,P=0.004)and 14 d(t=4.423,P<0.001).The circumference values of the two positions in the treatment group were lower than those in the control group at 7 d[t=2.315,P=0.023(above);t=2.121,P=0.037(below)]and 14 d[t=2.374,P=0.020(above);t=2.095,P=0.039(below)].After 14 d of treatment,the maximum active knee flexion angle and KOOS of the two groups were significantly improved but were significantly higher in the treatment group(P<0.05 for both).CONCLUSION TCM ointment and tuina therapy have significant advantages over standard care in the treatment of pain and swelling after TKA.This additional treatment may improve knee function but additional studies are needed to confirm our observations.展开更多
Two-dimensional(2D)semiconductor molybdenum disulfide(MoS_(2))can be used as n-channel and is considered as a key candidate material to advance the promising development of optoelectronic device.The high thermal condu...Two-dimensional(2D)semiconductor molybdenum disulfide(MoS_(2))can be used as n-channel and is considered as a key candidate material to advance the promising development of optoelectronic device.The high thermal conductivity,breakdown voltage,carrier mobility,and high saturation velocity of diamond offer the possibility of making it high-frequency device material in hightemperature and high-power fields.The addition of 2D MoS_(2)nanolayers and nanosheets to diamond thin film to form heterojunction can improve the carrier transport performance of the optoelectronic device in harsh environments.In this perspective,the prospects of 2D MoS_(2)/diamond heterojunction for challenges and new designs of optoelectronic applications are discussed,including photodetectors,memories,transistors,light emission diodes,and electron field emission devices to further explore the development of 2D material device field in complex environments.展开更多
In recent years,high-entropy alloys(HEAs) have developed a lot as the new style of materials,which have become a research focus in the materials fields.It breaks the normal procedure of traditional alloy design(based ...In recent years,high-entropy alloys(HEAs) have developed a lot as the new style of materials,which have become a research focus in the materials fields.It breaks the normal procedure of traditional alloy design(based on one/two elements as the main component,and adds some other elements to improve the micro structure and required related performance of the alloy),and consists of five or more equal or nearly equal elements,with multiple principal elements.Therefore,HEAs have many excellent mechanical properties compared with traditional alloys,which have aroused great research interest of researchers.The rapid development of high-pressure technology makes it a powerful tool to modulate the structures of HEAs,and brings new chance for the study and optimization of mechanical properties of HEAs.In this paper,the application of high-pressure technology in exploring and improving the mechanical properties of HEAs is reviewed,which could deepen the understanding of high-pressure technology and provide a new avenue for further exploration of HEAs’ mechanical properties.展开更多
基金financially supported by the National Natural Science Foundation of China(Nos.62104090 and 11604133)the Natural Science Foundation of Shandong Province(No.ZR2017QA013)+5 种基金the Introduction and Cultivation Plan of Youth Innovation Talents for Universities of Shandong Provincethe Science and Technology Plan of Youth Innovation Team for Universities of Shandong Province(No.2019KJJ019)the Open Project of State Key Laboratory of Superhard Materials(Jilin University,Nos.201503 and 201612)the Fundamental Research Funds for the Central Universities(buctrc 202122)the Research Funding of Liaocheng University(Nos.318012016,318051610,318052136 and 318051612)the Special Construction Project Fund for Shandong Province Taishan Scholars。
文摘Molybdenum disulfide(MoS_(2))is a widely used optoelectronic material with exceptional electrical,magnetic,optical,and mechanical properties.Due to the quantum confinement effect,high absorption coefficient,high surface-volume ratio,and tunable bandgap,nanoMoS_(2)-based devices exhibit size-dependent and novel optoelectronic properties,such as excellent photoluminescence and high anisotropic electrical,mechanical,and thermal properties.This review focuses mainly on the latest progress of optoelectronic device applications based on two-dimensional(2D)nano-MoS_(2).Various advanced devices,such as sensors,photodetectors,light-emitting diodes(LEDs),memory applications,and field-effect transistors(FETs)are considered.The review will provide a new perspective in promoting the development of 2D nanomaterial-based photoelectric applications.
文摘BACKGROUND The most effective treatment for knee joint pain is total knee arthroplasty(TKA),but the risk of pain and swelling in patients after surgery is high.Ice application,ankle pump exercise and non-steroidal anti-inflammatory painkillers are the primary clinical treatments after surgery.However,long-term use of nonsteroidal anti-inflammatory pain relievers can easily cause gastrointestinal damage.Traditional Chinese medicine(TCM)ointments and tuina therapy integrate TCM and manipulation,which effectively promotes the penetration of TCM into the skin lesions,improves local blood circulation and inflammatory reaction and has good long-term effects on patients.AIM To evaluate the efficacy of TCM ointment combined with tuina therapy in the treatment of pain and swelling after TKA.METHODS The randomized controlled clinical trial enrolled 80 patients who underwent TKA via the same procedure.The patients were randomly divided among the treatment group(n=40)and the control group(n=40).The control group was given an analgesia pump in addition to oral painkillers as the postoperative intervention.The treatment group received TCM ointment with tuina therapy in addition to the analgesia pump and oral painkillers in the postoperative period.The following variables were recorded 3 d before surgery and 3 d,7 d and 14 d after surgery:Visual analogue scale(VAS)score;skin temperature;circumferences at 15 cm above and below the patella;maximum active knee flexion angle;and the knee injury and Osteoarthritis Outcome score(KOOS).RESULTS After treatment,VAS was significantly lower in the treatment group than the control group at 7 d(t=7.536,P<0.001)and 14 d(t=8.563,P<0.001).The skin temperature of participants in the treatment group was significantly lower than that in the control group at 7 d(t=2.968,P=0.004)and 14 d(t=4.423,P<0.001).The circumference values of the two positions in the treatment group were lower than those in the control group at 7 d[t=2.315,P=0.023(above);t=2.121,P=0.037(below)]and 14 d[t=2.374,P=0.020(above);t=2.095,P=0.039(below)].After 14 d of treatment,the maximum active knee flexion angle and KOOS of the two groups were significantly improved but were significantly higher in the treatment group(P<0.05 for both).CONCLUSION TCM ointment and tuina therapy have significant advantages over standard care in the treatment of pain and swelling after TKA.This additional treatment may improve knee function but additional studies are needed to confirm our observations.
基金financially supported by the National Natural Science Foundation of China(Nos.62104090,11604133 and 62205011)the Natural Science Foundation of Shandong Province(No.ZR2017QA013)+6 种基金the Science and Technology Plan of Youth Innovation Team for Universities of Shandong Province(No.2019KJJ019)the Open Project of State Key Laboratory of Superhard Materials,Jilin University(Nos.201503 and 201612)the Fundamental Research Funds for the Central Universities(No.buctrc 202122)the Research Funding of Liaocheng University(Nos.318012016,318051610,318052136 and 318051612)the Open Research Project of Zhejiang province Key Laboratory of Quantum Technology and Device(No.20220401)the Open Research Project of Special Display and Imaging Technology Innovation Center of Anhui Province(No.2022AJ05001)the Special Construction Project Fund for Shandong Province Taishan Scholars。
文摘Two-dimensional(2D)semiconductor molybdenum disulfide(MoS_(2))can be used as n-channel and is considered as a key candidate material to advance the promising development of optoelectronic device.The high thermal conductivity,breakdown voltage,carrier mobility,and high saturation velocity of diamond offer the possibility of making it high-frequency device material in hightemperature and high-power fields.The addition of 2D MoS_(2)nanolayers and nanosheets to diamond thin film to form heterojunction can improve the carrier transport performance of the optoelectronic device in harsh environments.In this perspective,the prospects of 2D MoS_(2)/diamond heterojunction for challenges and new designs of optoelectronic applications are discussed,including photodetectors,memories,transistors,light emission diodes,and electron field emission devices to further explore the development of 2D material device field in complex environments.
基金supported by the National Natural Science Foundation of China (Grant Nos. 62104090, 11604133, and 11874174)the Natural Science Foundation of Shandong Province(Grant Nos. ZR2017QA013, ZR2021QA087, and ZR2021QA092 )+3 种基金the Science and Technology Plan of Youth Innovation Team for Universities of Shandong Province (Grant No. 2019KJJ019)the Introduction and Cultivation Plan of Youth Innovation Talents for Universities of Shandong Province, Fundamental Research Funds for the Central Universities (buctrc 202122)the Research Funding of Liaocheng University (318012016, 318051610, and 318051612)the Special Construction Project Fund for Shandong Province Taishan Scholars。
文摘In recent years,high-entropy alloys(HEAs) have developed a lot as the new style of materials,which have become a research focus in the materials fields.It breaks the normal procedure of traditional alloy design(based on one/two elements as the main component,and adds some other elements to improve the micro structure and required related performance of the alloy),and consists of five or more equal or nearly equal elements,with multiple principal elements.Therefore,HEAs have many excellent mechanical properties compared with traditional alloys,which have aroused great research interest of researchers.The rapid development of high-pressure technology makes it a powerful tool to modulate the structures of HEAs,and brings new chance for the study and optimization of mechanical properties of HEAs.In this paper,the application of high-pressure technology in exploring and improving the mechanical properties of HEAs is reviewed,which could deepen the understanding of high-pressure technology and provide a new avenue for further exploration of HEAs’ mechanical properties.
