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properties     
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  性能
    Study on Membrane Emulsification Internal Gelation Process and Properties of Calcium Alginate Gel Beads
    膜乳化内部凝胶化过程及海藻酸钙凝胶珠性能研究
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    Study on the Synthesis and Properties of Hydrophobically Modified Polyacrylamides and the Interaction of it with Ionic Surfactants
    疏水缔合型聚丙烯酰胺的合成与性能及其与离子型表面活性剂的相互作用
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    Studies on Design, Synthesis and Properties of Some High Performance Aromatic Polyamides Materials
    高性能聚芳酰胺类材料的设计、合成及性能研究
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    Structure and Properties of Self-reinforced PE-HD Pipes Extruded from Specially Applied Fields
    在特殊外场下挤出PE-HD自增强管的性能与结构
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    Study of Injection Behavior of Polymer Melt and Properties and Morphology of Specimen under Vibration Injection Molding
    聚合物熔体在振动场中注塑行为和试样性能与凝聚态结构的研究
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  性质
    Research on the Synthesis, Properties and Applications of Gemini Cationic Surfactants
    阳离子型Gemini表面活性剂的合成、性质及应用研究
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    Research on the Synthesis, Properties and Applications of a New Metal Complexing Surfactant
    新型金属络合性表面活性剂的合成、性质及应用研究
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    Studies on Design, Synthesis and Properties of Inhibitors of the Target Enzyme
    靶标酶抑制剂的设计、合成与性质研究
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    Rapidly Quenched Skeletal Ni: Preparation, Characterization, Catalytic and Adsorptive Desulfurization Properties
    猝冷骨架Ni样品的制备、表征、催化及吸附脱硫性质研究
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    Optoelectronic Properties of Transition-Metal Alkynyl σ Monomer and Polymer: Quantum Chemical Studies
    过渡金属σ-炔基配合物/聚合物光电性质的量化研究
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  特性
    Study on the Preparation and Properties of Antibacterial Chitosan Derivatives/Lyocell Fibers
    溶剂纺壳聚糖衍生物/纤维素抗菌纤维的制备与特性研究
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    PHB/PEG Multiblock Copolymers: Preparation, Structure, Properties, and Application as Molecular Imprinting Materials
    PHB/PEG 多嵌段共聚物的制备、结构、特性及其作为分子印迹材料的研究
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    STUDIES ON THE ANTHRACYCLINE ANTIBIOTIC 14 A Ⅱ.FERMENTATION,ISOLATION,CHEMICAL AND BIOLOGICAL PROPERTIES
    蒽环类抗肿瘤抗生素14A的研究 Ⅱ.发酵、分离、理化特性和生物学活性
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    STUDIES ON POLYETHER ANTIBIOTIC 61477 Ⅱ-The physico-chemical properties and characterization of Antibiotic 61477
    聚醚类抗生素61477的研究 Ⅱ.抗生素61477的理化特性及其鉴别
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    APPLICATION OF THE DIFFERENTIAL THERMAL ANALYSIS IN THE STUDY OF THE CURING PROPERTIES OF RUBBER
    差热分析用于研究橡胶的硫化特性
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  特点
    Properties and Application of Polyester Fabric
    聚酯单丝干网的特点及应用
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    CHARACTERISTICS OF DRY-SPUN ACRYLIC FIBER AND TEXTILE PROPERTIES
    干法腈纶纤维的特点与纺织特性
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    THE PROPERTIES AND PROCESSING OF REINFORCED THERMOPLASTICS
    热塑性增强塑料的性能及其加工特点
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    Research and Manufacturing Properties of XM-370×(6-60) Rubber Internal Mixer
    XM-370×(6-60)橡胶密炼机的研制及特点
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    Structure and Properties of RIB-Tire Shaping Curing Press
    RIB型轮胎定型硫化机的结构与特点
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      properties
    They result in many nontrivial properties of quantum immanants.
          
    The paper studies generic commutative and anticommutative algebras of a fixed dimension, their invariants, covariants and algebraic properties (e.g., the structure of subalgebras).
          
    Whenever the action of a maximal torus on the coneCλ* has some nice properties, we obtain simple closed formulas for all weight multiplicities and theirq-analogs in the representationsVnλ,n∈?.
          
    Some basic properties of the compactness propertiesCn are shown.
          
    A local-global principle for finiteness properties ofS-arithmetic groups over number fields
          
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    Sodium di-n-butyl naphthalene sulfonate was prepared from n-butyl al-cohol, naphthalene and fuming sulfuric acid. Di-isoamyl naphthalene sul-fonate was prepared similarly. Their wetting properties were tested by the modified Draves method. Dibutyl naphthalene sulfonate was found to be avaluable wetting agent and could be made from cheap raw materials.

    本文提供二正丁基萘磺酸钠及二异戊基萘磺酸钠之制备方法.前者可从正丁醇、萘、及发烟硫酸制得,后者可用异戊醇代替正丁醇.此两种萘磺酸钠之浸湿作用会用与Draves法相似之方法加以测定,并与土耳其红油之浸湿作用相比较.根据实验之结果,知二正丁基萘磺酸钠之浸湿力较土耳其红油为高,乃良好之浸湿剂;但二异戊基萘磺酸钠之浸湿力并不较土耳其红油为高.

    Six new compounds, namely, diacetone glucose monopalmitate, diacetone glucose monostearate, D-glucose monopalmitate, D-glucose monostearate, D-glucose tetraacetate monopalmitate,and D-glucose tetraacetate monostearate, have been synthesized and some of their properties have been described. Monoesters of glucose and higher fatty acids have been shown to be surface-active and possess good emulsifying property. Both D-glucose monopalmitate and monostearate exhibit polymorphism and each compotmd exists in...

    Six new compounds, namely, diacetone glucose monopalmitate, diacetone glucose monostearate, D-glucose monopalmitate, D-glucose monostearate, D-glucose tetraacetate monopalmitate,and D-glucose tetraacetate monostearate, have been synthesized and some of their properties have been described. Monoesters of glucose and higher fatty acids have been shown to be surface-active and possess good emulsifying property. Both D-glucose monopalmitate and monostearate exhibit polymorphism and each compotmd exists in four polymorphic forms.Diacetone glucose monopalmitate,diacetone glucose monostearate,D-glucose tetraacetate monopalmitate,D-glucose tetraacetate monostearate are all low-melting crystalline substances,and no polymorphism has been obserred among them.

    本文报告6种新化合物:二丙酮缩葡萄糖一软脂酸酯、二丙酮缩葡萄糖一硬脂酸酯、D-葡萄糖一软脂酸酯、D-葡萄糖一硬脂酸酯、D-葡萄糖一软脂酸四乙酸酯及D-葡萄糖一硬脂酸四乙酸酯的合成方法及其性质.葡萄糖与高级脂肪酸所生成的葡萄糖单酯为优越的乳化剂.D-葡萄糖一软脂酸酯及一硬脂酸酯都具有同质多晶的性质,各有4种同质多晶体.其他4种化合物都是低熔点的晶体,未发现有同质多晶现象的存在.

    A new alkaloid, sipeimine, has been isolated by the authors from a Chinese drug, Si-Pei-Mu, with a yield of 0.12-0.2% (based upon the dry drug), being the highest for Fritillaria alkaloid so far. Sipeimine has an empirical formula C_(27)H_(43)O_3N, m.p. 269℃, [α]_D -33.8° (CHCI_3), [α]_D-39.4°(C_2H_5OH). It crystallises in colorless prisms, and is easily soluble in chloroform or ethyl acetate, soluble in methanol, ethanol, acetone or ether but insoluble in water, sodium hydroxide or petroleum ether. From it,...

    A new alkaloid, sipeimine, has been isolated by the authors from a Chinese drug, Si-Pei-Mu, with a yield of 0.12-0.2% (based upon the dry drug), being the highest for Fritillaria alkaloid so far. Sipeimine has an empirical formula C_(27)H_(43)O_3N, m.p. 269℃, [α]_D -33.8° (CHCI_3), [α]_D-39.4°(C_2H_5OH). It crystallises in colorless prisms, and is easily soluble in chloroform or ethyl acetate, soluble in methanol, ethanol, acetone or ether but insoluble in water, sodium hydroxide or petroleum ether. From it, a hydrochloride in the form of a colorless, amorphous and hygroscopic powder with a m.p. 210° (sealed tube), [α]_D-51.1° (H_2O), a thiocyanate, C_(27)H_(43)O_3N·HCNS·H_2O, in the form of colorless prisms with a m.p. 170° (262° decomp.), an aurichloride with a m.p. 1638 (decomp.) and a platinichloride with a m.p. 239° (decomp.) are prepared. Sipeimine is a strong monoacidic tertiary base, containing one alcoholic hydroxyl group and one carbonyl group. Its methiodide, C_(27)H_(43)O_3N·CH_3I, colorless needles, m.p. 252°(decomp.), methoperchlorate, C_(27)H_(43)O_3N·CH_3ClO_4, colorless needles, m.p. 281° (decomp.), monoacetyl derivative, C_(29)H_(45)O_4N, colorless prisms, m.p. 189°, [α]_D-39.6° (CHCl_3) and mono-oxime C_(27)H_(44)O_3N_2, colorless needles, m.p. 171°, are obtained. It contains at least three carbon-methyl groups but has no active ethylenic linkage, nor has any active methylene group been detected. It does not form sparingly soluble digitonide with digitonin. From the similarity of its empirical formula, botanical origin and properties, sipeimine probably belongs to the steroidal alkaloids as peimine does. A partial formula is presented as follows:

    由西貝母提得新植物鹼西貝素(sipeimine)C_(27)H_(43)O_3N,熔點269°,[α]_D——33.8°(CHCl_3),[α]_D-39.4°(C_(2)H_(5)OH),為無色柱狀結晶,易溶於氯仿,可溶於甲醇、乙醇、丙酮及醚,不溶於水、石油醚及苛性鹼溶液。其氫氯酸鹽,熔點210°;硫氰酸鹽,熔點262°;氯金酸鹽,熔點163°(分解):氯鉑酸鹽,熔點239°(分解)。西貝素合一個叔胺基[碘甲季銨鹽,熔點252°(分解)],一個醇羥基[乙醯西貝素,熔點189°,乙醯西貝素氫氯酸鹽,熔點271°(分解)],一個羰基(肟,熔點171°),及至少三個碳甲基。其部分分子式如下:

     
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