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按质论价的经济学分析

同济大学学报（社会科学版） 2002年第3期13卷 61-66页

作者：祝志勇西南师范大学经济政法学院

按质论价是马克思价格理论中价格运行机制原理的简约表述。按质论价有两种形态。坚持按质论价对我国进一步深化市场化改革 ,充分发挥价格的运行、调控机制 ,加快经济结构的调整 ,规范市场秩序 ,提升经济运行质量 ,迎接“入世”

关键词：按质论价解构指导作用

Novel Bis-(N-alkyl-N ,N-dimethyl-ammonium) Polyethyleneglycol Ether Salts as Phase Transfer Catalysts in the Condensation of l,4-Diacetyl-2,5-piperazinedione and Aldehydes

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Chemical Research in Chinese Universities 1995年第2期11卷 178-184页

作者： WANG Li-xin,XU Ming-hua,SHI Yao-zcng and HU Hong-wen (department of Chemistry,Nanjing university,Nanjing,210008) resent address chengdu Institute of Organic Chemistry,Acdemia Sinica,chengdu,610015 Present address:chengdu lnstutute of Organic Chentistry Acdemia Simca.chengdu,G10015 NANJING UNIV DEPT CHEMNANJING 210008PEOPLES R CHINA

Phase transfer catalysis (PTC) has become one of the most extensively used techniques in organic synthesis. The key factor in such processes is the catalyst. There are mainly two kinds of phase transfer catalysts, one is the so called "crown ethers" including macrocyeles, open chain molecules with long chains, bearing heteroatoms at a proper distance, and can chelate inorganic

关键词： Phase transfer catalysis 2 5-Piperazincdione Selectivity

CT examination, clinical situation and experimental characteristics of infants with intracranial hemorrhage induced by delayed vitamin K deficiency

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Neural Regeneration Research 2006年第9期1卷 801-805页

作者： Zhiqing Lin1, Feng Fang1, Min Chen2, Guoxiang Cai3 1department of Pediatrics, Tongji Hospital Affiliated to Tongji Medical College, Huazhong university of Science and Technology, Wuhan 430030, Hubei Province, china 2department of Pediatrics, 3department of Radiation Medicine, Zhongshan Hospital Affiliated to Xiamen university, Xiamen 361004, Fujian Province, china department of Pediatrics Tongji Hospital Huazhong University of Science and Technology Wuhan 430030 Hubei Province China department of pediatrics Zhongshan Hospital Xiamen University Xiamen 361004 Fujian Province China department of Radiation Medicine Zhongshan Hospital Xiamen University Xiamen 361004 Fujian Province China

BACKGROUND: Delayed vitamin K deficiency is characterized by acute onset, severe illness and high fatality rate. 33%-50% survivors accompany with other various nervous system sequelas. Therefore, diagnosis and treatment of intracranial hemorrhage in time become a key factor for improving healing rate and reducing fatality rate and incidence of sequela. OBJECTIVE: To investigate the clinical situation, experimental characteristics, CT examination and terminative characteristics of infants with intracranial hemorrhage induced by delayed vitamin K deficiency. DESIGN: Case analysis. SETTING: department of Pediatrics, Zhongshan Hospital Affiliated to Xiamen university. PARTICIPANTS: A total of 17 infants with intracranial hemorrhage induced by delayed vitamin K deficiency aged 1-3 months including 11 boys and 6 girls were selected from department of Pediatrics, Zhongshan Hospital Affiliated to Xiamen university from January 1994 to December 2005. All infants had drowsiness, rejective milk, spiting milk, gaze of both eyes, tic, coma, full anterior fontanelle, high muscular tension and cerebral hernia, etc. Experimental examination demonstrated that infants had anemia at various degrees; prothrombin time and partial thromboplastin time were prolonged; platelet count was normal. CT examination indicated that screenages of subarachnoid hemorrhage, subdural hematoma, cerebral parenchyma hemorrhage and intraventricular hemorrage were changed. Hemorrhage was stopped by the application of vitamin K. All patients provided informed consent. METHODS: ① Clinical situation and physical sign of infants were observed after hospitalization and scanned with rapid spiral CT scanning system. The thickness and average space of layers were 8-10 mm and the scanning time was 5 s with window width of 30-80 Hu and window position of 28-35 Hu. ② After hospitalization, four items of blood coagulation was measured with Futura meter and biochemical indexes of blood, such as serum calcium, serum alka

关键词： clinical situation and experimental characteristics of infants with intracranial hemorrhage induced by delayed vitamin K deficiency CT examination

Water solubility enhancements of PAHs by sodium castor oil sulfonate microemulsions

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Journal of Environmental Sciences 2003年第5期15卷 583-589页

作者： ZHU Li zhong *, ZHAO Bao wei, LI Zong lai (department of Environmental Science, Zhejiang university, Hangzhou 310028, china.) department of Environmental Science Zhejiang University Hangzhou 310028 Chin

Water solubility enhancements of naphthalene(Naph), phenantherene(Phen) and pyrene(Py) in sodium castor oil sulfonate(SCOS) microemulsions were evaluated. The apparent solubilities of PAHs are linearly proportional to the concentrations of SCOS microemulsion, and the enhancement extent by SCOS solutions is greater than that by ordinary surfactants on the basis of weight solubilization ratio(WSR). The log K em values of Naph, Phen, and Py are 3 13, 4 44 and 5 01 respectively, which are about the same as the log K ow values. At 5000 mg/L of SCOS conccentration, the apparent solubilities are 8 80, 121, and 674 times as the intrinsic solubilities for Naph, Phen, and Py. The effects of inorganic ions and temperature on the solubilization of solutes are also investigated. The solubilization is improved with a moderate addition of Ca 2+ , Na +, NH + 4 and the mixture of Na +, K +, Ca 2+ , Mg 2+ and NH + 4. WSR values are enhanced by 22 0% for Naph, 23 4% for Phen, and 24 6% for Py with temperature increasing by 5℃. The results indicated that SCOS microemulsions improve the performance of the surfactant enhanced remediation(SER) of soil, by increasing solubilities of organic pollutants and reducing the level of surfactant pollution and remediation expenses.

关键词： sodium castor oil sulfonate microemulsion solubilization PAHs

Correlativity between neural complex and gonadal development in Styela plicata

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Chinese Science Bulletin 1997年第10期42卷 864-867页

作者： FANG Yongqiang, LIN Jiahan and HUANG Weiquan1. Third Institute of Oceanography, State Oceanic Administration, Xiamen 361005, china 2. department of Biology, Xiamen U-niversity, Xiamen 361005, china 3. Fourth Military Medical university, Xi’an 710032, china Third Institute of Oceanography State Oceanic Administration Xiamen 361005 China

IT has been demonstrated that two reproductive hormones,gonadotropin-releasing hormone(GnRH)and gonadotropin(GTH),exist in the nervous system and Hatschek’s pit oflancelet,a species of Cephalochordata,and that these ... 详细信息

关键词： Styela plicata neural complex reproductive hormone.

Nucleation of Cold Rolled FeCo Alloy during Annealing and Its Influence on the Formation of Recrystallization Texture

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Journal of Materials Science & Technology 2000年第5期16卷 543-545页

作者： Guohui ZHU, Weimin MAO+ and Yongning YU (department of Metal Materials, university of Science and Technology Beijing, Beijing 100083, china) department of Metal Materials University of Science and Technology Beijing Beijing 100083 China

The orientation distribution of recrystallization grains formed during annealing, as well as their misorientation relationship to the deformation matrix in cold rolled FeCo alloy have been investigated. It was found that most of the recrystallization nuclei were located near the boundary area with rather random orientations, and their misorientation angles to the deformation matrix were generally very high. However a few nuclei were also observed inside the deformation grains, to which they had very similar orientations. Therefore the misorientation angles between the nuclei and the deformation matrix were generally very low. The orientation and the misorientation distributions of the nuclei have very strong influence on the recrystallization process which could result in a very weak recrystallization texture. The corresponding mechanism is discussed.

关键词： In Nucleation of Cold Rolled FeCo Alloy during Annealing and Its Influence on the Formation of Recrystallization Texture

Antitumor and anti-angiogenic activity of Ganoderma lucidum polysaccharides peptide

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Acta Pharmacologica Sinica 2004年第6期25卷 131-136页

作者： Qi-zhen CAO, Zhi-bin LIN1 department of Pharmacology, Health Science Center, Peking university, Beijing 100083, china department of Pharmacology Health Science Center Peking University

AIM: To investigate the antitumor and anti-angiogenic activity of Ganoderma lucidum polysaccharides peptide (GLPP). METHODS: Antitumor effect of GLPP was observed in tumor-bearing mice in vivo. At the same time, the effects of GLPP on proliferation of tumor cells and human umbilical cord vascular endothelial cell (HUVEC) were detected by MTTassay in vitro. Subsequently, spleen lymphocytes proliferation of nude mice was stimulated by LPS or ConA. To investigate the anti-angiogenic effect of GLPP, GLPP 80 μg per disc and GLPP-treated serum 10 μL per disc were added to the chick chorioallantoic membrane (CAM) respectively in vivo. RESULTS: GLPP 50, 100, and 200 mg/kg inhibited growth of Sarcoma 180 in BALB/c mice markedly by 35.2 %, 45.2 %, and 61.9 %, respectively. GLPP which was directly added to the cultured medium did not inhibit PG cell proliferation in vitro; but GLPP-treated serum 50, 100, 200 mg/kg potently inhibited PG cell proliferation by 22.5 %, 26.8 %, and 30.3 %, respectively; and reduced the xenograft (human lung carcinoma cell PG) in BALB/c nude mice greatly in vivo by 55.5 %, 46.0 %, and 46.8 %, respectively. Lymphocytes proliferation of nude mice could be stimulated by LPS 5 mg/Lbut not by ConA 2.5 mg/L, indicating that GLPP could not promote the T lymphocyte proliferation and neutral red phagocytosis of peritoneal macrophages of nude mice. The CAM assay showed that GLPP and GLPP-treated serum had anti-angiogenic effect. GLPP (1, 10, and 100 mg/L) inhibited HUVEC proliferation in vitro with the inhibitory rate of 9.4 %, 15.6 %, and 40.4 %, respectively. CONCLUSION: GLPP has antitumor and anti- angiogenic activity. The anti-angiogenesis of GLPP may be a new mechanism underlying its anti-tumor effects.

关键词： Ganoderma lucidum polysaccharides sarcoma 180 adenocarcinoma lung neoplasms lympho- cyte proliferation peritoneal macrophages angiogenesis nude mice

The Process of TiB_2-Cu Composite Phase and Structure Formation during Combustion Synthesis

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Journal of Wuhan university of Technology(Materials Science) 2006年第4期21卷 113-116页

作者：徐强 School of Materials Science and Engineering Beijing Insitute of TechnologyBeijing 100081China

The reaction process of combustion synthesis for TiB2 -Cu was investigated in detail using combustion-wave arresting experiment, X-ray diffraction （ XRD ） analysis, SEM analysis and differential thermal analysis （ DTA ）. The XRD analysis results for the different parts of the quenched specimen show that TiCux intermetallic phase firstly forms with the propagation of combustion wave, and then Ti1.87 B50 and Ti3B4 metastable phases come forth due to the diffusion of B atoms and finally the stable TiB2 phase forms because of the continuous diffusion of B atoms. The formation of TiB2 phase is uot completed by one step, but undergoes several transient processes. The process of reaction synthesis for Ti-B-Cu ternary system can be divided into three main stages： melting of Cu and Ti , and the formation of Cu- Ti melt and few TiCux , TiBx intermetallic phases ; large numbers of TiCux intermetallic phases formation and some fine TiB2 particles precipitation ; and the TiB2 particles coarsening and the stable TiB2 and Cu two phases formation in the final product.

关键词： combustion synthesis reaction process TiB2 phase combustion-wave arresting experiment

Electrodeposition of Ni-W Amorphous Alloy and Ni-W-SiC Composite Deposits

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Journal of Materials Science & Technology 2000年第3期16卷 323-326页

作者： Zhongcheng GUO, Xiaoyun ZHU, Dacheng ZHAI and Xianwan YANG (department of Metallurgy, Kunming university of Science and Technology, Kunming 650093, china) department of Metallurgy Kunming University of Science and Technology Kunming 650093 China

Ni-W alloys and their composite deposits are electroplated on the metals when an appropriate complex agent is selected on the base of the theories of electrochemistry and complex chemistry, and the principle of induced codeposition. Effects of the bath composition, pH value, temperature and current density on the electrode position of Ni-W alloys and their composite deposits have been investigated, and the effect of heat treatment temperature on the hardness, structure and cohesive force of the amorphous Ni-W alloys and their composite deposits are also discussed. Results showed that the alloys containing more than 44 wt pct W content and the composite deposits containing 7.8 wt pct SiC content could be obtained by making use of the appropriate bath composition and plating conditions. Alloys and their composite deposits with over 44 wt pct W content show amorphous structure. The hardness of amorphous Ni-W alloys and their composite deposits increases obviously when heated, and can reach to 1350 HV and 1520 HV respectively for 46 wt pct W content. The cohesion on Cu, carbon steel and stainless steel is very good.

关键词： SiC Electrodeposition of Ni-W Amorphous Alloy and Ni-W-SiC Composite Deposits Ni