期刊文献+
共找到8篇文章
< 1 >
每页显示 20 50 100
VIBRATION AND ACOUSTIC RADIATION FROM SUBMERGED STIFFENED SPHERICAL SHELL WITH DECK-TYPE INTERNAL PLATE 被引量:1
1
作者 ChenJnnming HuangYuying 《Acta Mechanica Solida Sinica》 SCIE EI 2003年第3期210-219,共10页
Based on the motion differential equations of vibration and acoustic coupling system for thin elastic spherical shell with an elastic plate attached to its internal surface,in which Dirac-δ functions are employed to ... Based on the motion differential equations of vibration and acoustic coupling system for thin elastic spherical shell with an elastic plate attached to its internal surface,in which Dirac-δ functions are employed to introduce the moments and forces applied by the attachment on the surface of shell,by means of expanding field quantities as Legendre series,a semi-analytic solution is derived for the vibration and acoustic radiation from a submerged stiffened spherical shell with a deck-type internal plate,which has a satisfactory computational effectiveness and precision for an arbitrary frequency range.It is easy to analyze the effect of the internal plate on the acoustic radiation field by using the formulas obtained by the method proposed.It is concluded that the internal plate can significantly change the mechanical and acoustic characteristics of shell,and give the coupling system a very rich resonance frequency spectrum.Moreover,the method can be used to study the acoustic radiation mechanism in similar structures as the one studied here. 展开更多
关键词 spherical shell deck-type internal plate vibration and acoustic radiation semianalytic solution acoustic radiation mechanism
下载PDF
Clinical Effectiveness of the Plate Screw Internal Fixation Technique in the Treatment of Patients with Traumatic Fractures of Long Bones in the Lower Extremities
2
作者 Yong Cai 《Proceedings of Anticancer Research》 2024年第3期115-120,共6页
Objective: To investigate the effectiveness of the plate screw internal fixation technique on the clinical outcomes of patients with traumatic fractures of long bones in the lower extremities. Methods: From January 20... Objective: To investigate the effectiveness of the plate screw internal fixation technique on the clinical outcomes of patients with traumatic fractures of long bones in the lower extremities. Methods: From January 2022 to December 2023, 70 patients with traumatic fractures of long bones in the lower extremities were admitted to the hospital and randomly divided into two groups: the control group and the observation group, each consisting of 35 cases. The control group underwent traditional closed interlocking intramedullary nailing, while the observation group received internal fixation with steel plates and screws. Relevant surgical indicators, treatment effectiveness, and postoperative complication rates were compared between the two groups. Results: The observation group exhibited significantly short surgical duration (80.65 ± 5.01 vs. 88.36 ± 5.26 minutes), fracture healing time (13.27 ± 0.32 vs. 15.52 ± 0.48 weeks), and hospitalization days (10.49 ± 1.13 vs. 16.57 ± 1.15 days) compared to the control group (P = 0.000). The effective treatment rate was significantly higher in the observation group (29/82.86%) than in the control group (21/60.00%), with a significant difference observed (χ2 = 4.480, P = 0.034). Additionally, the complication rate in the observation group (2/5.71%) was significantly lower than that in the control group (8/22.86%), with a correlated difference (χ2 = 4.200, P = 0.040). Conclusion: The plate screw internal fixation technique demonstrates significant clinical efficacy in treating traumatic fractures of long bones in the lower extremities. It improves the healing rate, reduces complications, and represents a safe and effective treatment strategy worthy of widespread use and application. 展开更多
关键词 plate screw internal fixation technique Traumatic fractures Long bones in the lower extremities EFFECTIVENESS
下载PDF
Usage of buttress plate internal fixation associated with autografting of fibula and iliac bone for the treatment of distal femoral C_3 type fracture
3
作者 李衡 《外科研究与新技术》 2005年第3期176-177,共2页
To assess the effect of using buttress plate associated with antografting of fibula and iliac bone for the treatment of distal femoral C3 type fracture.Methods Seventeen cases of distal femoral C3 type fracture usin... To assess the effect of using buttress plate associated with antografting of fibula and iliac bone for the treatment of distal femoral C3 type fracture.Methods Seventeen cases of distal femoral C3 type fracture using buttress plate associated with antografting of fibula and iliac bone were analyzed retrospectively.Results All cases were followed up for an average of 24 months(8~55 months).The average time of octets bridge forming were 4 months(3~5 months) while the average time for bone union were 8 months (6~14 months).According to Shelbourne rating system,result of all 18 cases were excellent and no malunion,infection were found.Conclusion Buttress plate associated with antografting of fibula and iliac bone is an effective alternative for the treatment of distal femoral C3 type fracture.It can provide more stable fixation to the bone and earlier functional exercises can be achieved.5 refs,3 figs,1 tab. 展开更多
关键词 Usage of buttress plate internal fixation associated with autografting of fibula and iliac bone for the treatment of distal femoral C3 type fracture
下载PDF
Effect of Locking Compression Plate on the Treatment of Limb Fracture and the Effect of Operative Success Rate and Postoperative Recovery Time
4
作者 Hanping Huang 《Journal of Integrative Medicine(双语)》 2020年第1期9-11,共3页
Objective:To analyze the effect of locking compression plate on the success rate of operation and the time of postoperative recovery.Methods:120 patients with limb fractures from March 2018 to March 2020 were randomly... Objective:To analyze the effect of locking compression plate on the success rate of operation and the time of postoperative recovery.Methods:120 patients with limb fractures from March 2018 to March 2020 were randomly divided into control group(60 cases)and observation group(60 cases).The control group was treated with plate screw internal fixation,The observation group used locking compression plate internal fixation,Compare the effect of treatment,the success rate of operation and the time of postoperative recovery.results:compared the effective rate of the two groups,the observation group(93.33%)was significantly higher than the control group(75.00%).Compared with the two groups,the success rate of operation and the time of postoperative recovery,the observed composition power was higher than that of the control group,and the postoperative recovery time was lower than that of the control group,P<0.05.Conclusion:The use of locking compression plate for the treatment of limb fracture can significantly increase the probability of successful operation,shorten the recovery time after operation,the overall curative effect is ideal,and the clinical popularization value is high. 展开更多
关键词 Limb fracture Locking compression plate internal fixation plate screw internal fixation EFFECT Surgical success rate Postoperative recovery time
下载PDF
Postoperative Fracture Healing Effects of Locking Compression Plate for the Treatment of Limb Fractures
5
作者 Bin Zhao Jingli Dou +1 位作者 Rongcai Zhang Mingming Wang 《Journal of Clinical and Nursing Research》 2021年第3期24-27,共4页
Objectives To study the effects of applying locking compression plates in the treatment of patients with limb fractures on postoperative fracture healing.Methods:115 patients with limb fractures who were treated in ou... Objectives To study the effects of applying locking compression plates in the treatment of patients with limb fractures on postoperative fracture healing.Methods:115 patients with limb fractures who were treated in our hospital from November 2019 to November 2020 were selected.In order to study the effective treatment method,the random-number table method was used in this study to divide the patients into two groups,namely the experimental group and the control group,and the locking compression plate treatment method and the pure plate and screw internal fixation treatment method were administered respectively to study their clinical application effects.Results:Compared with the control group,patients in the experimental group had a lower incidence of complications,shorter hospitalizations and shorter recovery time.Meanwhile,the experimental group had a better quality of recovery,and all data were significantly different from those of the control group,P<0.05,the intervention effect of the experimental group was better.Conclusion:The application of the locking compression plate in the treatment of patients with limb fractures is more conducive to promoting the postoperative healing of the patients'fractures,reducing the incidence of postoperative complications,and promoting the rapid recovery of patients,which has positive significance for clinical development. 展开更多
关键词 Locking compression plate treatment method Simple plate and screw internal fixation treatment method Patients with limb fractures
下载PDF
EFFECT OF INTERNAL FIXATION PLATES ON MICROCIRCULATION IN UNDER-PLATE CORTICAL BONES MICROANGIOGRAPHY AND SCANNING ELECTRONMICROSCOPY 被引量:1
6
作者 王友 戴克戎 《Chinese Medical Journal》 SCIE CAS CSCD 1994年第12期51-55,共5页
To elucidate the effect of the internal fixation plates on the local bone blood sapply, we used microangiography and scanning electron microscopy to observe the morphological changes of microcirculation in the cortica... To elucidate the effect of the internal fixation plates on the local bone blood sapply, we used microangiography and scanning electron microscopy to observe the morphological changes of microcirculation in the cortical bones obtained from intact rabbit tibiae on which plates of two different stiffness had been fixed for comparison. The results indicated that both rigid stainless steel plate and less rigid methyl methacrylate plate could induce the bone microcirculation under the plate to undergo a process from early depression to late reactive recruitment. The features of the microcircuiation recruitment such as vascular number, arrangement and dilatation varied with plates of different stiffness and were more obvious in the cortex fixed by rigid stainless steel plate. 展开更多
关键词 In MMA EFFECT OF internal FIXATION plateS ON MICROCIRCULATION IN UNDER-plate CORTICAL BONES MICROANGIOGRAPHY AND SCANNING ELECTRONMICROSCOPY
原文传递
Quantitative Histological Study on Changes of the Cortical Bones after Internal Fixation with Plates of Different Rigidity 被引量:2
7
作者 Wang You et al. Dept Orth, Ninth People’s Hospital, Shanghai Second Med Uni, Shanghai 200011. Chin J Orth 《Chinese Medical Journal》 SCIE CAS CSCD 1995年第11期30-30,共1页
In an effect to explore the potemtial role of bone microcirculation causing plate-induced reginal osteoporosis
关键词 Quantitative Histological Study on Changes of the Cortical Bones after internal Fixation with plates of Different Rigidity
原文传递
Fluidization of micro-interconnected fluidized beds for chemical looping
8
作者 Tianxu Shen Xiao Zhu +1 位作者 Tao Song Laihong Shen 《Particuology》 SCIE EI CAS CSCD 2021年第1期136-145,共10页
The micro-interconnected fluidized bed(MIFB)was designed to improve the evaluation condition of oxygen carrier,which is difficult to perform in a lab-scale interconnected fluidized bed because of the large demand for ... The micro-interconnected fluidized bed(MIFB)was designed to improve the evaluation condition of oxygen carrier,which is difficult to perform in a lab-scale interconnected fluidized bed because of the large demand for bed inventory.The reduction of bed inventory in the MIFB was mainly achieved by the appropriate miniaturization of the reactor size,in which the wall effect and operating flexibility should be taken into consideration.With hematite serving as the oxygen carrier,stable and flexible fluidization could be realized with 342.9 g of bed inventory.Internal perforated plates were arranged in the middle of the reactor to improve gas-solid distribution,which also could restrain the slugging formation and increase the particle residence time by 28.9%.A different fluidization phenomenon was observed in this two-stage reactor in which the particle fluidization was reconstructed in the upper chamber.Throughout 48 h of cold operation,the hematite oxygen carrier attrition rate was evaluated as 0.151 wt.%/h corresponding to 660 h lifetime,where 12.5%of particle attrition was contributed by internal perforated plates.An excellent fitting performance was found between the pressure difference in the risers and the upward particle flow,but the correction factor should be adjusted according to the fluidization flow. 展开更多
关键词 Micro chemical-looping reactor Bed inventory internal perforated plate HYDRODYNAMICS
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部