Preparation, structure and application of a new ecomaterials cesium ion-sieve

A new ecomaterials cesium ion-sieve (Cs-IS). which has high selectivity to cesium and excellent acid resistance, is prepared with zirconyl molybdopyrophosphate as its matrix by specific chemical sieve-making means. Cs-IS has large exchange capacity (1. 83 mmol'g^-1) and high distribution coefficient (4. 09 X 104 mL'L^-1) in the medium of 3 mol'L^-1 HNO3. In the static exchange with strongly acidic high-level radioactive liquid waste (HLLW) (3 mol'L HNO3). Cs-IS exhibits high exchange rate for cesium (above 96. 53% ) and large separation factor (greater than 958. 41). These indicate the possible use of Cs-IS in cesium^-137 selective removal and recovery from highly saline acidic HLLW system.     

A new Euprox from the Late Miocene of Yuanmou,Yunnan Province,China,with interpretation of its paleoenvironment

The Yuanmou Basin of Yunnan Province is a hotspot for the research of early homind evolution and its environmental background.During the implementation of the Program“Research of the Origin and Evolution of Early Man and Its Environmental Baqckground” from 1998 to 2001,a huge quantity of hominoid and mammal fossils were collected.The present report systematically describes an Euprox robustus sp.nov.identified during the recent laboratory work on the collected material.Euprox is a group of earliest cervids with true antlers.The new species is the third one of the genus discovered in China.Judged by its morphologic characteristics,the new species feed on juicy and tender leaves of dicotyledon.It implies that the vegetation of its epoch in the Yuanmou Basin is a kind of southern subtropical evergreen forest and the climate is humid and temperate with evident seasonality.The latter is mostly influenced by the monsoon and secondly by the latitude.     

Cloning and expression of ophc2, a new organphosphorus hydrolase gene

The amino acid sequences of N-terminal and internal peptide of OPHC2, purified from Pseudomonas pseudoalcaligenes strain C2-1 in our lab, are determined. The full-length organphosphorus hydrolase gene ophc2 is cloned by PCR using the degenerate primers designed according to the sequences and future inverse PCR. The ophc2 gene is 975 bp long with G C content of 63%, comprising one open reading frame encoding a polypeptide of 324 amino acids with a molecular weight of 36 kD. The nucleotide sequence of ophc2 shows low homologies with those organphosphorus hydrolase genes deposited in GenBank, one of which exhibits the highest homology of 46.4% with ophc2. The organphosphorus hydrolase protein expressed in E. coli bears normal bioactivity.     

A new definition of restricted Lie superalgebras

A new definition of restricted Lie superalgebras has been given; some important results on the representation theory of restricted Lie superalgebra have been obtained.     

A new approach of cascade utilization of the chemical energy of fuel

The indirect release of chemical energy of fuel is investigated, and a new mechanism is proposed to identify the cascade utilization of chemical energy of fuel more clearly. Based on the concept of energy level, the internal phenomenon of the indirect chemical energy release is disclosed, and the equations of energy level describing the utilization of chemical energy and thermal energy during the indirect chemical energy release process are obtained. From theoretical analysis, we find that the superiority of the indirect chemical energy release of fuel comes from the cascade utilization of the fuel's chemical energy. Moreover, the cascade utilization of chemical energy is verified by the investigation of CRGT (chemically recuperated gas turbine). As a result, the thermal exergy obtained from the chemical energy release of fuel increases by 2%?3%. The results obtained here may help a deeper understanding of indirect chemical energy release of fuel and provide a theoretical basis for the synthesis of innovative energy systems.     

Synthesis and characterization of a new water-soluble sodium 5, 7, 4＇-trihydroxyflavone-6, 3＇-disulfonate

Aim To synthesize a new water-soluble Na 2(C15H8O5)(SO3) 2 and determine its structure.Method The new water-soluble apigenin sulfonated derivative was synthesized by sulfonation with concentrated sulfuric acid at 40℃for half an hour and the products were obtained in ethanol-water(V∶V =1∶1).The structure of the product was identified by IR,NMR spectrum and elemental analysis.Results and Conclusion After highly selective introduced two - SO 3 groups at C3′and C6of the substrate,the new water-soluble apigenin sulfonated derivative,sodium 5,7,4 '-trihydroxyflavone-6,3′-sulfonate was obtained in good yield(78%) at moderate conditions.This method is an ideal synthesis way because of its simple operation,mild reaction conditions,high selectivity,easy separation of the product and higher yield.     

中国潜叶蜂族新属种(膜翅目:叶蜂科)(英文)

描述了中国潜叶蜂族两新属三新种：短角额潜叶蜂Sinoscoliabrevicortnisgen.etsp.now.新属新种,故背鞘潜叶蝶Paraparnarubiginosagenetsp.now.新属材种,郑氏臀潜叶峰Afusazhengisp.nov.新种。指出臀游计蜂属是中国新记录属.     

京西早白垩世丸甲（昆虫纲，鞘翅目）化石

根据北京西山下白垩统卢尚坟组的甲虫化石，建立化石丸甲二新属三新种：Ｍｅｓｏｂｙｒｒｈｕｓｔａｎａｅｇｅｎ．ｅｔｓｐ．ｎｏｖ，Ｍｅｓｏｂｙｒｒｈｕｓｐａｒｖｕｓｇｅｎ．ｅｔｎｏｖ．和Ｆａｎｇｓｈａｎｅｌａｓｔｏｌｉｄａｇｅｎ．ｅｔｓｐ．ｎｏｖ．．初步探讨了丸甲科昆虫的演化，认为丸甲科是鞘翅目中很古老的一类，和其它科关系不大，自中生代后期以来演化十分缓慢     

Discovery of Middle Jurassic palaeontinids from Inner Mongolia, China (Homoptera: Palaeontinidae)

A new genus and three new species of fossil Palaeontinidae， Papilioncossus conchatus sp. nov., P. giganteus sp. nov.　and P. pteroideus sp. nov.， are described. All of them were collected from Middle Jurassic Jiulongshan Formation in Inner Mongolia, China. Based on distal part of forewing broader and longer than basal and Sc usually with branches, the new taxa are attributed to Palaeontinidae of Homoptera and compared with genus Pseudocossus. A key to species of Papilioncossus gen. nov. is provided. All type specimens are deposited in the Capital Normal University.     

Discovery of Middle Jurassic palaeontinids from Inner Mongolia, China (Homoptera: Palaeontinidae)

A new genus and three new species of fossil Palaeontinidae, Papilioncossus conchatus sp. nov., P. giganteus sp. nov. and P. pteroideus sp. nov., are described. All of them were collected from Middle Jurassic Jiulongshan Formation in Inner Mongolia, China. Based on distal part of forewing broader and longer than basal and Sc usually with branches, the new taxa are attributed to Palaeontinidae of Homoptera and compared with genus Pseudocossus. A key to species of Papilioncossus gen. nov. is provided. All type specimens are deposited in the Capital Normal University.     

中国凹颜叶蜂族研究(膜翅目:叶蜂科)(英文)

本文记述中国凹颜叶蜂亚科凹颜叶蜂族一新属和三新种：细足叶蜂属Anheterusgen．nov．新屋,细足叶蜂Anheterustenuisp．nov．新种,郑氏细足叶蜂Anheteruszhengisp．nov．新种,长齿细足叶蜂Anheterusjangngshanussp．nov．新种。同时报道了中国叶峰科一新记录属科,黑鳞凹颜叶蜂HeterarthruskamtchaticaMalaise．     

四川秀山早寒武世高肌虫新材料

本文记述了早寒武世沧浪铺阶一高肌虫新属Tanguangbiella(gen.nov.),标本产于川东南秀山溶溪剖面下寒武统天河板组中部。新属以壳体巨大,具纺缍形前腹瘤、准生长线及缘膜构造为特征,其主要特征接近于高肌虫类,而部分特征也和介形类相似,加之标本稀少,故暂置于高肌虫目。     

New dragonflies (Insecta: Odonata: Gomphaeschnidae) from the Yixian Formation in Inner Mongolia, China

Two fossil dragonflies from the Upper Jurassic to Lower Cretaceous Yixian Formation in Liutiaogou Village, Ningcheng County, Inner Mongolia, China are described and illustrated. They are assigned to two new genera and species, i.e., Sophoaeschna frigida gen. et sp. nov. and Falsisophoaeschna generalis gen. et sp. nov. within the family Gomphaeschnidae Tillyard & Fraser, 1940. This is the first report of Odonata from Yixian Formation in Inner Mongolia and the second record of fossil Gomphaeschnidae from China.     

Caradocian期三叶虫—新属Paratzuchiatocnemis，并讨论其分类位置问题

本文描述了采自湘西北奥陶纪 Caradocian 期的三叶虫新属——Paratzuchiatocnemis(gen.nov.)(副自家虫),并进一步讨论此新属的特征与自家虫属(Tzuchiatocnemis),瘤肋虫属(Hammatocnemis)、卵形头虫属(Ovalocephalus)的异同及它们的相互关系与归属问题,认为宜将 Ovalocephalus、Tzuchiatocnemis 与 Paratzuchiatocnemis 三属划归为新亚科——卵头虫亚科〔Ovalocephanae(subfam.nov.)〕.