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- Cylindrical Helix Spline Approximation of Spatial Curves摘要:In this paper, we present a new method for approximating spatial curves with a G1 cylindrical helix spline within a prescribed tolerance. We deduce the general formulation of a cylindrical helix,which has 11 freedoms. T…查看全部>>
- 15 kV高压直流电源的程控调压方法北大核心CSCDCSTPCDhigh voltage DCpower supplyoutput valueprogrammable voltage regulatingmethoddigital potentiometerlinear photoelectric coupling摘要:In order to solve the disadvantages caused by mechanical slide rheostat that has big errors and low precision, a novel voltage regulation method for high voltage DC power supply was introduced. The key of this method we…查看全部>>
- EFFECT OF DIFFERENT OPERATION METHODS ON METHANE HYDRATE FORMATION北大核心CSCDCSTPCD摘要:Three experiments of static state storage method, low-temperature and constant-pressure storage method and low-temperature and constant-pressure storage method were carried out to investigate which method was best…查看全部>>
- Principle and mathematical method for inverting stress state of a medium from the remote sensing data摘要:It has been proved through experiments that the electromagnetic radiation energy of a substance will vary when stress acts on the substance. This moment, the electromagnetic radiation energy (observation value) recei…查看全部>>
- Optimization of casting process based on the theory of inventive problem solving
- Comparison between visual clinical examination and the replica method for assessments of sealant retention over a 2-year periodCSCD
- A Shortcut for Extricating System Development from Predicament-by Means of Object-oriented Methods摘要:Three main problems in system development and the plight of the system development are analyzed and discussed. Finally a practical and formalized method-object-oriented method is proposed to extncate the …查看全部>>
- Finite Element Simulation of the Polymeric Liquid Flow in Coat-hanger Die摘要:A three - dimenslonal finite element model is developed to deal with the polymeric liquid flow in coat - hanger die. This model is used to predict the flow behavior of the 2% CMC/watsr solution in the coat - hanger d…查看全部>>
- Research on New Testing Method and Instrument of Clothing Pressureclothingpressuremechanicalbalancetypeelectro-bridgebalancetypeleastsquaremethodelasticknittedfabrics.摘要:This paper discusses the formation of the fabric clothingpressure,the efforts of the human body and the impor-tance of the clothing pressure measurement.Several as-pects such as setting up the scientific and simpl…查看全部>>
- The Analysis of the Untwisting and Retwisting Methods in Determining the Twist of OE Yarn摘要:The twists of twelve kinds of the cotton OE yarns in different machine twists and different yarn linear density have been determined by one time back twisting and twisting method, triple twisting method and double twist…查看全部>>