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安定性     
相关语句
  stability
     Some physical and detonation properties were also measured,with density 1.795g/cm3,melt point 170-171℃,detonation velocity 7177m/s(1.530g/cm3),temperature of decomposition 260℃,friction sensitivity 8%(90°),impact sensitivity 60%(10kg,25cm),and vacuum stability test 0.4-0.7mL(5g,100℃,48h).
     经测定,DATF的部分理化及爆轰性能为:密度1.795g/cm3,熔点170~171℃,爆速7177m/s(1.530g/cm3),热分解温度260℃,摩擦感度8%(90°摆角),撞击感度60%(10kg,25cm),真空安定性(5g样品,100℃,48h),放气量0.4~0.7mL。
短句来源
     The results show that the acceptable criterion for chemical stability of nitroglycerin is a concentration of NO_x of less than or equal to 85ppb/82℃, 11min.
     试验结果表明,硝化甘油化学安定性合格指标为NO_2浓度≤85ppb/82℃,11min。
短句来源
     The influence of light sulfurized castor oil(adding 0.5%S,1%S,2%S,3%S) on the tribological and rheological characteristics,biodegradability,and thermal oxidation stability was studied.
     研究了蓖麻油轻度硫化(加0.5%S、1%S,2%S和3%S)对其流变性能、低温性能、热氧化安定性及生物降解性的影响。
短句来源
     The properties of N-guanylurea dinitramide (FOX-12) have been studied. FOX-12 is dissoluble in cold water. It has a crystal density of 1.755 g/cm~3,the heat of combustion 1 483.98 kJ/mol,the temperature of decomposition 218.41℃,low sensitivity and good thermal stability.
     研究了N 脒基脲二硝酰胺盐(FOX 12)性能,FOX 12不溶于冷水,结晶密度1.755g/cm3,燃烧热1483.98kJ/mol,分解温度218.41℃,感度低,热安定性好。
短句来源
     Influence of RDX and HMX on the Thermal Stability of TEX
     HMX与RDX对TEX热安定性能的影响
短句来源
更多       
  soundness
     Used as cement admixture it can improve the soundness of cement and reduce the cost.
     它作为水泥混合材料可以改善水泥的安定性,并能降低水泥的成本.
短句来源
     The 28 d compressive mortar strength,determined according to GB/T17671—1999,is up to 34.0 MPa and bending strength 5.9 MPa,with good soundness and proper setting time.
     按GB/T 17671—1999对胶凝材料进行测试,28天胶砂抗压强度达到34.0 MPa,抗折强度达到5.9 MPa,安定性、凝结时间合格。
短句来源
     The results showed that it was feasible to use phosphorus slag to produce cement clinker, while with the increasing of the P2O5 content the C3S in clinker would be decomposed, and the P2O5 may form αC2S·C3P with C2S, thus decrease the early strength and cause the bad soundness of clinker.
     研究结果表明,使用磷工业废渣配料生产水泥熟料在技术上是可行的,但P2O5含量增加会使熟料中C3S分解产生fCaO,并与C2S形成αC2S·C3P,从而使熟料的早期强度降低,安定性不良。 高温下氟和P2O5反应形成氟磷灰石,可减少P2O5对熟料的不良影响。
短句来源
     Effect of MgO, f-CaO, FeO, RO phase and metal Fe in steel-making slag powder on soundness of cement is investigated by boiling test, steam test and autoclave test.
     采用沸煮、高温长时间蒸养及压蒸方法研究了钢渣粉中的f-CaO、MgO、FeO、RO相及金属铁对水泥安定性的影响。
短句来源
     Research on Improving Soundness and Strength of High Calcium Fly Ash By Using High-Performance Accessories
     高性能辅料改善高钙粉煤灰安定性及强度的性能研究
短句来源
更多       
  shakedown
     In this paper, after the introduction of Hertz's elastic solution of the wheel-contact stress, a shakedown analysis is made according to Melan's rule and the new criterion for the wheel-rail strength design, i.e.( τ_(xz)~2 + τ_(yz)~2)_(max)≤k~2, proposed as well.
     本文在论述轮轨接触应力的Hertz弹性解后,根据Melan定理进行了安定性分析,并提出了轮轨强度设计的新判据,即(τ_(xz)~2+τ_(yz)~2)_(max)≤k~2。
短句来源
     STUDY OF SHAKEDOWN ANALYSIS OF FRAME STRUCTURES (Ⅰ) ——Basic Theorems and its Simplifying
     框架结构安定性分析(Ⅰ)——基本定理及简化
短句来源
     The plastic strain hardening is introduced into shakedown region V_s and the cyclic hardening into fatigue region V_F·The assumption that the thermal stress history is the linear elastic stress history is ignored because it differs markedly from the realistic constitutive response and brings about great error in shakedown analysis.
     通过将循环强化和应变强化分别引入子区域V_F和V_S,利用材料安定性假设,得到了较为合理的塑性安定边界,克服了以前的工作中对处于V_F和V_S区中的材料分别采用完全各向同性强化(或假设热应力史是弹性应力史)和完全塑性的理想材料模型所带来的不合理性和误差。
短句来源
     SHAKEDOWN ANALYSIS OF FRAME STRUCTUREES (Ⅱ) ——Linear Programming Method and its Application
     框架结构安定性分析(Ⅱ)——线性规划法及其应用
短句来源
     A SHAKEDOWN ANALYSIS OF WHEEL-RAIL CONTACT STRESS PROBLEM
     轮轨接触应力问题的安定性分析
短句来源
更多       
  invariability
     Discussion on Determination Method (accelerate method) of Light Diesel Oil Oxidation Invariability
     轻柴油氧化安定性测定法分析方法探讨
短句来源
     Study on improvement of invariability for jet fuel by electrolytic hydrogenation
     电解加氢提高喷气燃料安定性的研究
短句来源
     Theoretical Analysis and Experiment Study on the Invariability of the Reinforced Concrete Frame
     钢筋混凝土框架结构的安定性试验研究及理论分析
短句来源
     The result indicates that the ISO strength, the setting time, invariability and other physics properties of the compound cement with the utilization of the principle of superiority making up to each other for mixture and with the blended material addition of 50%, 45%, 40% and 35% can conform to the requirement of Chinese standard.
     研究结果表明:利用混合材的优势互补原理,当混合材的掺量分别为50%、45%、40%、35%时,复合水泥的ISO强度、凝结时间、安定性均符合国家标准要求。
短句来源
     Through calculating, checking and estimating various mortar structure elements, ballistic elements, aerodynamic coefficient, flying stability, shooting intensity, invariability, spreading precision, the result indicates the improved mortar shell meets the requirements of mortar shell criterion.
     通过对迫击炮弹结构诸元、弹道诸元、气动力系数、飞行稳定性、杀伤半径、发射强度、安定性、散布精度等进行计算、校核和估算,结果表明:能满足该迫击炮弹指标要求。
短句来源
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      stability
    Stability theorems for Fourier frames and wavelet Riesz bases
          
    In this paper we present two applications of a Stability Theorem of Hilbert frames to nonharmonic Fourier series and wavelet Riesz basis.
          
    As an application we prove new theorems concerning stability offrames (and frame-like decompositions) under perturbation in both Hilbert spaces and Banach spaces.
          
    Stability and independence of the shifts of finitely many refinable functions
          
    Typical constructions of wavelets depend on the stability of the shifts of an underlying refinable function.
          
    更多          
      soundness
    At the end of this paper, some important aspects of error correction, capacity, learning efficiency, and soundness of structural representation are analyzed theoretically.
          
    This paper proposes an axiomatic systems for total logic, and proves its soundness and completeness in a classical pattern on the structure of programs.
          
    The soundness of this method has been demonstrated theoretically and experimentally and the expediency of using it in the intensive wall cooling regime has been confirmed.
          
    A theorem on soundness of the axiomatic semantics of C-kernel with respect to its operational semantics is proved.
          
    Based on the Schweizer-Sklar t-norm, a fuzzy logic system UL* is established, and its soundness theorem and completeness theorem are proved.
          
    更多          
      shakedown
    The formulas of the yield pressure, limit pressure and region of shakedown are obtained.
          
    Shakedown analysis of shell structures of kinematic hardening materials
          
    It is of great practical importance to analyze the shakedown of shell structures under cyclic loading, especially of those made of strain hardening materials.
          
    Shakedown analysis of elasto-plastic structures subjected to external loading and temperature variation
          
    A new kinematical shakedown theorem is presented under the consideration that external load and temperature change slowly.
          
    更多          
      invariability
    Analysis of the thermal expansion anisotropy showed that increased temperature gives rise to equalization of metal-oxygen bond lengths in all oxygen polyhedra at the expense of lengthening of some bonds and virtual invariability of others.
          
    Investigations at the Tien Shan EAS array confirm a change in the properties of showers generated by protons near the upper boundary of the atmosphere and evince the invariability of the energy spectrum of protons in the energy range 103-105 TeV.
          
    This family is characterized by its invariability by a one-parameter group of holomorphic isometries of the complex projective plane.
          
    Here we examine how the energy equations enable us to define the deformation amplitude χm, establish the bond angles expressions and check the energy invariability along the pseudorotation circuit.
          
    The structural invariability of natural diaspores can be concluded from the results.
          
    更多          


    This paper discusses the process of thermal decomposition of thepropellants which is aged artificially under the condition of Vieille Test.The pocess is analysed by measuring the effective stabilizers and measur-ing the variations of the viscosity of nitrocellulose in the aged propellan-ts. The variation of these components shows a distinct characteristic atthe endpoint of thermal decomposition of the propellants. From this cha--racteristic, we can judge the stability of propellants. It must be pointed out at...

    This paper discusses the process of thermal decomposition of thepropellants which is aged artificially under the condition of Vieille Test.The pocess is analysed by measuring the effective stabilizers and measur-ing the variations of the viscosity of nitrocellulose in the aged propellan-ts. The variation of these components shows a distinct characteristic atthe endpoint of thermal decomposition of the propellants. From this cha--racteristic, we can judge the stability of propellants. It must be pointed out at the same time that the variation of viscosi--ty not only reflect sensitively the degree of the decomposition but alsoshows an important characteristic, i e, the last amount of viscosity approa--ches to a limit value and deceleration of this variation. equals nearlyzero. This characteristic supplies a convenient method for judge the endpo-int of thermal sustainability of propellants.

    本文讨论了无烟火药在维也里实验条件下进行人工老化时,通过测定火药中有效安定剂以及火药中的硝化棉粘度值的变化来分析火药的热分解过程。并从这些组分的变化中表明了火药分解到终点时,具有一个可鉴别的明显特征;由这些特征可判断火药的安定性。同时指出,火药中硝化棉的粘度值变化,不仅能灵敏地反映火药的分解情况,而且其值的变化有一个重要特征,即当火药分解到临界状态时,其值下降速度接近于0,趋向某一极值。这种特点对判断火药的耐热终点是很方便的

    The title compound was first published in 1961 in U. S. P. by Henry Feuer who synthesized its intermediate by "Mannich Reaction" of nitroform, aminoethanol and formaldehyde. In China it was obtained by other method in 1962. All of these researchers considered it is an unstable, useless explosive.We have found that it can be synthesized by Mannich-Nitrosation reaction to increase its yield and recrystallized from dilute NHO_3 to improve the stability of the title compound.The data of the properties of this pure...

    The title compound was first published in 1961 in U. S. P. by Henry Feuer who synthesized its intermediate by "Mannich Reaction" of nitroform, aminoethanol and formaldehyde. In China it was obtained by other method in 1962. All of these researchers considered it is an unstable, useless explosive.We have found that it can be synthesized by Mannich-Nitrosation reaction to increase its yield and recrystallized from dilute NHO_3 to improve the stability of the title compound.The data of the properties of this pure compound, the thermal-hydrolitic stability and detonation properties show that the title compound remains a valuable kind of explosive if it is used under certain conditions.

    题称化合物首先是由Henry Feuer于1961年在美国专利上发表的,作者用硝仿、乙醇胺和甲醛水溶液经曼尼希反应合成了此化合物的中间体。我国1962年也用别的方法制得了它。所有这些研究者都认为,题称化合物是很不安定的、无使用价值的炸药。我们发现,当用曼尼希-亚硝化反应合成这一化合物时,可大大提高产品的产率,若用稀硝酸对粗品重结晶,可大大改善其安定性。由纯品的热安定性、水安定性及爆轰性能的测试数据可以看出,在一定的使用条件下,题称化合物仍不失为一个有价值的炸药。

    The wheel-rail interaction, in nature, is nothing but a problem of contact stress produced in a body subjected to repeated loads. A rational strength criterion of such a problem can be found only by a shakedown analysis on the theory of plasticity. In this paper, after the introduction of Hertz's elastic solution of the wheel-contact stress, a shakedown analysis is made according to Melan's rule and the new criterion for the wheel-rail strength design, i.e.( τ_(xz)~2 + τ_(yz)~2)_(max)≤k~2, proposed as well....

    The wheel-rail interaction, in nature, is nothing but a problem of contact stress produced in a body subjected to repeated loads. A rational strength criterion of such a problem can be found only by a shakedown analysis on the theory of plasticity. In this paper, after the introduction of Hertz's elastic solution of the wheel-contact stress, a shakedown analysis is made according to Melan's rule and the new criterion for the wheel-rail strength design, i.e.( τ_(xz)~2 + τ_(yz)~2)_(max)≤k~2, proposed as well. It is shown that the maximum axial load determined by the new criterion is much larger than that by the elastic solution. Illustrative examlpes reveal the maximum axial load can be increased by 64%.

    轮轨的相互作用实际上是反复荷载作用下的接触应力问题。只有运用塑性理论的安定性分析才能找到合理的强度判据。本文在论述轮轨接触应力的Hertz弹性解后,根据Melan定理进行了安定性分析,并提出了轮轨强度设计的新判据,即(τ_(xz)~2+τ_(yz)~2)_(max)≤k~2。结果表明,新判据大大地提高了根据弹性解所确定的最大轴重。算例指出,最大轴重比弹性解提高64%左右。

     
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