力学
- 与 力学 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The conjointness between glass fiber and resin was effectively improved through coupling- agent surface treatment, so the performance of composites was improved.
研究结果表明,将光固化技术用于制备玻璃纤维增强树脂基复合材料是完全可能的;纤维的加入可有效提高树脂材料的各项力学性能,同时随着纤维体积含量的提高,力学性能也呈上升趋势;玻璃纤维偶联处理能有效改善纤维与树脂基体之间的结合,从而提高复合材料的力学性能。
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Unloading nonlinear rock mass mechanics, one new concept in geotechnics, is put forward by the author in this paper, and whose main researching contents are discussed in the paper.
提出卸荷非线性岩石力学的概念及其主要内容,指出卸荷非线性岩石力学与加载岩石力学的区别。
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In order to investigate the effect of different parts and radial directions on the mechanical properties and dir-dried density of plantation wood,the mechanical properties and air-dried density of plantation-grown Castanopsis hystrix and Betula alnoides at different parts and radial directions were studied.
为了研究树木南北向与径向位置的变化对人工林木材力学性质与气干密度的影响,该文通过对红锥、西南桦人工林木材南北向、近髓心和近树皮2个不同径向位置的力学性质以及气干密度进行测定,分析了南北向和不同径向位置2个因素对两种木材力学性质和气干密度的影响,以及木材密度与抗弯强度、抗弯弹性模量、顺纹抗压强度的相关性。
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The law how these factors influence the joint"s property was pointed out. A formula about the relationship between extrusion times and contamination remainder was founded. Main reason to bimetal"s inharmonic deformation was the difference of their mechanical property. Thereby, the empirical formula showing the relation between metal combination"s mechanical property and quality of joint was constructed. Integrated influence of extrusion times and metal"s mechanical property to quality of cold pressure welding joint was discussed.
在模拟结果分析和实验的基础上,对影响异种金属冷压焊焊接性的工艺因素进行了分析;探讨了诸因素对接头性能的影响规律,并且建立了挤压次数与界面污染物残留量之间的数学表达式;指出了两种材料力学性能差异是造成不协调塑性变形的主要原因,并且建立了材料力学性能与其冷压焊焊接性之间的经验公式;定性的讨论了挤压次数及材料力学性能对冷压焊接头性能的综合影响。
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"Tuina Manipulation combined with Exercise Therapy" treating the lumbar disc herniation cases has a significant long residual effect. Analying the anatomy, physiological characteristics, mechanics analysis of the waist and LDH's modern research, its mechanism may adjust to lumbar compliance; ease cramps; change the relative positions of disc and nerve roots, reduce or lift the oppression; correct facet dislocation; release adhesions, improve circulation and promote absorption and repair of the inflammation and edema; analgesic pain threshold or enhance the organization; improve the waist myodynamia; reconstruct the balance of the waist and so on.
结合腰部椎体、肌肉及韧带等组织的解剖、生理特点、力学分析和腰椎间盘突出症的现代研究分析,其机制可能是调整腰椎顺应性,缓解痉挛;改变突出髓核与神经根的相对位置,减轻或解除压迫;纠正小关节错位及滑膜崁顿;松解粘连,改善循环,促进炎症、水肿的吸收和损伤修复;镇痛与提高组织痛阈;改善腰部肌力;促进人体生物力学结构重构;恢复腰椎及其周围力学平衡等几个方面。
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Since there exists some disadvantages such as poor mechanic properties and much higher burning rate pressure exponents (?1) in the fundamental formulations, this work is devoted to the improvements of combustion characteristics and mechanic properties of LOVA propellants. The effects of the crystal shape, size and contents of nitroamine particles, the types of binder, plasticizer and surface-active agents and the contents of NC on combustion performance are studied by closed bomb tests. In the mechanic properties tests, the effects of the types of binders, plasticizers and solid fillers, the interaction between binders and solid fillers and technological procedures on propellant mechanic properties are researched.
针对基础配方具有燃速压力指数远大于1、力学性能差等特点,采用密闭爆发器等试验手段,研究了诸如硝胺粒径、硝胺晶体形状、硝胺含量、粘结剂、增塑剂、硝化棉含量及表面活性剂等因素对燃烧性能的影响;采用抗沖、抗压静态试验方法,对粘结剂、增塑剂、固体填料、粘结剂与固体填料之间的相互作用及工艺条件与力学性能之间的关系进行了研究,提出了改善低易损性发射药燃烧性能和力学性能的技术途径。
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Objective By measuring parts of indexes of metacarpo phalangeal joint in biomechanics, we try to understand the characteristic of collateral ligament in biomechanics.
目的:通过拇指掌指关节侧副韧带的生物力学多项指标的检测,了解韧带生物力学特性,结合临床不同治疗方法的不同效果,探索韧带力学特性对手术治疗效果的影响。
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The purpose of this article: to study the force-testing method of the side-kick in free-fighting, and develop the new field of three dimensional force-testing according to many experiments by means of three-dimensional force plate; to discover the kinematics rules and characteristics of the side-kick in free-fighting through the experimental study on the side-kick's biomechanics and kinematics characteristics of 18 excellent free-fighting athletics coming from Shandong Province, which will provide reliable kinematics indexes and parameters for diagnosing and improving the motion skills of free-fighting side kick,and for free-fighting teaching and training, further systemize and scientize the theory research of free-fighting motion.
研究目的:运用生物力学的研究方法,通过KISTLER 三维测力平台测力的实验,研究了散打侧踹腿动作的力量测试方法,开拓了散打侧踹腿动作三维力学测试的新领域;通过对山东省18 名一线优秀散打运动员侧踹腿动作力学特征和运动学特征的研究,揭示了散打侧踹腿动作的运动规律和特征,为诊断、改进和提高侧踹腿动作的技术以及散打教学和训练提供可靠的运动学指标和参数,使散打运动的理论研究进一步系统化、科学化。
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For different silvicultural measures, the mechanical properties of Pinus sylvestris plantations were measured and analyzed. The results showed that the effect of silvicultural measures on many mechanical properties of Pinus sylvestris Plantations were not significant..In order to increase the mechanical properties of wood, growth-promoting and then get the better structure building lumber and glued lamination board, the stands on south slope or at the down of slope, and with density of 1.5m×1.0m, properly thinning could be selected. Results of this study can provide a theoretical base and good guidance for oriented breeding of Pinus sylvestris plantations.
摘 要:对不同培育措施的人工林樟子松木材力学指标进行测试和分析,结果表明:不同的培育措施(初植密度、间伐强度、坡向、坡位)对樟子松人工林木材的绝大多数力学强度指标有显著的影响,可选择阳坡、坡下、1.5m×1.0m、轻度间伐林分进行定向培育,来提高木材力学强度性能,从而加快林木生长,培育高产、优质的结构、建筑用材及胶合板材林。
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Through simulation of the real process of thomcolumbar burst fracture and use of modem dynamics techniques, the present study was (1) to investigate the kinetic relationship between structural damage and impact energy absorption and dynamics mechanism of thoracolumbar burst fracture by quantitative analysis of various injured segments;(2) to explore the instability mechanism of L1 vertebral burst fracture and its injury threshold by three-dimensional analysis of the injured segment with stereophotogrammetry in combination of transient physical parameters, anatomy and image;(3) to explore the corresponding relationships between impact energy, geometry parameters and biomechanics by geometry and biomechanical analysis of thoracolumbar burst fracture, which may provide an objective standard for evaluation of spinal injury severity and experimental evidence for adoption of biomechanical treatment in clinic;(4) to evaluate the fixation effect of different instruments and the effect of intervertebral bone graft on segment fixation by analysis of the threedimensional stability of different internal fixation instruments and their decompression of the spinal canal, which may provide experimental evidence for therapeutical selection for thoracolumbar burst fracture in future; and finally to investigate the effect of various instrument fixation on dynamical characteristics by comparison and quantitative analysis of frequency and amplitude responses, which may provide certain theories and experimental evidence for application of vibration test to judge the stability of the spine.
本研究从胸腰段脊柱爆裂骨折发生的实际过程出发,以现代动力学检测及计算机多通道高性能数据采集分析系统等高新技术为基础,实时量化分析损伤节段的工程参数,揭示了结构破坏与能量吸收的变化规律,探讨了胸腰段脊柱爆裂骨折的瞬态损伤机制;利用三维立体摄像技术,对不同损伤程度的节段进行三维运动分析,结合瞬态物理参数、影像学和病理解剖,明确了〓椎体爆裂骨折的失稳机制及损伤阈值;通过对胸腰椎爆裂骨折的几何学变化及生物力学分析,明确了撞击能量与几何参数、几何参数与生物力学的相应关系,为评判脊柱损伤程度提供了客观标准,为治疗中采取适宜的生物力学方法提供了实验依据;通过对比分析不同内固定器械的三维稳定性和对椎管的减压作用,评价不同器械的复位固定作用,同时比较椎体间植骨对节段固定作用的影响,为今后临床胸腰段脊柱爆裂骨折的治疗选择提供依据;利用振动测试与分析技术,比较及量化分析了不同致伤状况的频幅响应特征,比较分析了各种器械固定对动力学特性的影响,为今后临床建立基于振动测试与分析技术判断脊柱稳定性的诊断方法,提供了一定的理论和实验依据。
- 推荐网络例句
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I will endeavour to find you some assistance.
我尽力帮你找人帮忙。
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At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.
起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像,后来回台湾,甚至去年在北京,居然也四处看见她的海报,才惊讶她的魅力之大。
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Ah may dee:You are chinese living in a democratic country.
你是居住在民主国家的中国人吧。