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New solid superbases: potassium nitrate supported on porous materials

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Chinese Science Bulletin 1997年第17期42卷 1493-1494页

作者： Zhu, jh Chun, y Wang, y Tu, M Chemistry Department Chemistry & Chemical Engineering College Nanjing University Nanjing China

ACCORDIng to Tanabe’s definition, all materials possessing the basic strength （H-） over 26.5 are superbases. However, most of superbases known up to now, including CaO and SrO evacuated at 1173 K, K or Na metal supported on KOH/γ-Al2O3, etc. are extremely sensitive to CO2 or H2O in the atmosphere, which limits their application in industrial scale. In or-

关键词： potassium nitrate supported on porous materials New solid superbases

Recognition and implication of eclogite in the western Altun Mountains, Xinjiang

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Chinese Science Bulletin 1997年第11期42卷 931-934页

作者： Liu, L Che, ZC Luo, jh Wang, y Gao, ZJ Department of Geology Northwest University Xi\'an 710069 China

SINCE high-pressure metapelitic rocks have been discovered in the Beiketan area of eastern Al-tun Mountains,a set of eclogite has been recognized in south of Jianggesayi,western *** eclogite,associated with quartz-garnet-clinopyroxenite and metamorphosed retrogradelyto garnet-amphibolite partially,is exposed in the Proterozoic meso- to hypometamorphic rocksand can be traced eastward to northwest of Mangya asbestos deposit,for about 200

关键词： Altun Mountains eclogite high-pressure metamorphism.

Vitrificational cryopreservation and subsequently fertile plant regeneration from rice (Oryza sativa L.) embryogenic suspension cells

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Chinese Science Bulletin 1997年第5期42卷 422-426页

作者： Wang, jh Zheng, y yan, QF yan, QS Zhang, XQ Huang, CN College of Life Science Hangzhou University Hangzhou 310028 China

CRyOPRESERVATION by vitrification is a new ultralow-temperature-storage technique developed in the 1980s. Operationally, procedures for vitrification of biological specimens consist of the following basic steps: treatment of the samples in a highly concentrated vitrification solution and then plunging the specimens into liquid nitrogen. The word 'vitrification' is sometimes used to describe the high moisture of the in vitro cultures or regenerants. However, in this note, this word means a biophysical process in which the cells and the solution are transformed into a homogeneous and amorphous state. The water in cells does not change into ice, but in

关键词： rice embryogenic suspension cells vitrification cryopreservation plant regeneration.

Optimal phase estimation with photon-number difference measurement using twin-Fock states of light

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Chinese Physics B 2019年第12期28卷 82-87页

作者： jh Xu J Z Wang A X Chen y Li G R Jin Key Laboratory of Optical Field Manipulation of Zhejiang Province and Physics Department of Zhejiang Sci-Tech University Hangzhou 310018China Beijing Computational Science Research Center.Beijing 100193 China

Quantum phase measurement with multiphoton twin-Fock states has been shown to be optimal for detecting equal numbers of photons at the output ports of a Mach–Zehnder interferometer(i.e., the so-called single-fringe detection), since the phase sensitivity can saturate the quantum Cramér–Rao lower bound at certain values of phase shift. Here we report a further step to achieve a global phase estimation at the Heisenberg limit by detecting the particle-number difference(i.e., the ?_z measurement). We show the role of experimental imperfections on the ultimate estimation precision with the six-photon twin-Fock state of light. Our results show that both the precision and the sensing region of the ?_z measurement are better than those of the single-fringe detection, due to combined contributions of the measurement outcomes. We numerically simulate the phase estimation protocol using an asymptotically unbiased maximum likelihood estimator.

关键词： foundations of quantum mechanics measurement theory nonclassical interferometry

Cloning and identification of an angiostatic molecule IP-10/crg-2

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World Journal of Gastroenterology 1999年第3期5卷 241-244页

作者： Liu ZG y.ng jh An HZ Wang Hy He FT Han Zy Han y Wu HP Xiao B Fan DM Fourth Mil Med Univ Dept Gastroenterol Xijing Hosp Xian 710032 Shaanxi Prov Peoples R China Harvard Univ Dept Cellular & Mol Biol Cambridge MA 02138 USA

AIM To obtain human and murine cDNAsencoding IFN--y inducible protein 10 (lP--10) andcytokine responsive gene--2 (Crg-2).METHODS The encoding genes of lP-10 and Crg2 were amplified by RT--PCR from Cultured humanfibroblast cells and Balb/ c mouse liver treatedby IFN-y and TNF-a, respectively, and clonedinto plasmids of PUC19 and PGEM3Zf(+ ).RESULTS The nucleotide sequences ot theamplified DNA were confirmed by endonucleasesdigestion and *** Recombinant lP-10/ crg--2 geneclones with 306 hp and 314 hp inserts wereestablished for further research on biologicalactivities and ligands of hiP-10/mCrg--2.

关键词： IP Nature Figure Cloning and identification of an angiostatic molecule IP-10/crg-2

SyNTHESIS AND CHARACTERIZATION OF HETEROBIMETALLIC COMPLEXES:(Cp_2LnOCH_2C_6H_5)Cr(CO)_3(Ln=Gd,Dy,yb,y)

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Chinese Chemical Letters 1995年第3期6卷 261-262页

作者： Qian, CT Guo, jh Acad Sinica Shanghai Inst Organ Chem Organomet Chem Lab Shanghai 200032 Peoples R China

Heterobimetallic complexes in which chromium and lanthanide metals were bridged with difunctional benzyloxide group (Cp2LnOCH2C6H5)Cr(CO)3 (Ln=Gd. Dy. yb. y). were synthesized The complexes were characterized by eleme... 详细信息

关键词： Dy AND SyNTHESIS CHARACTERIZATION HETEROBIMETALLIC OF Gd COMPLEXES yb Cr

Preparation of Pt/C Catalyst with a New and Simple Organic Sol Method

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Chinese Chemical Letters 2004年第7期15卷 875-878页

作者： yaWenTAng GangLI ChangPengLIU WeiX1ng TianHongLU DepartmentofChemistry NanjingNormalUniversityNanjing210097 ChangchunInstituteofAppliedChemistry ChineseAcademyofSciences.Changchun130022

It is reported for the first time that the Pt/C catalyst can be prepared with a new and simple organic sol method using SnCl2 as the reductant. It was found that the average size of the Pt particles in the Pt/C catalysts could be controlled with controlling the preparation conditions. The effect of the average sizes of the Pt particles in the Pt/C catalysts obtained with this method on the electrocatalytical activity of the oxidation of methanol was investigated.

关键词： Pt colloid Pt/C catalyst particle size.

Ab initio Studies on the Reaction of M￣++CH_4→M￣+CH_2+H_2(M=Sc,y,La)

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Chemical Research in Chinese Universities 1996年第4期12卷 368-373页

作者： Zhu, RS Dai, SS Huang, jh ye, S yUNNAN UNIV DEPT CHEMKUNMING 650091PEOPLES R CHINA

The present paper covers the reactions of M￣+ +CH_4→M￣+CH_2+H_2(M=Sc,y,La)investigated theoretically using ab initio MO methods and reaction channels onthe singlet potential energy surfaces (PESs) examined and discusses the reactionmechanism. The results indicate that the formation of M￣+CH_2 is primarily via a sin-glet H M￣+ CH_3 intermediate,followed by a four-center elimination of H_2,all ofthese reactions have negative activation energies and the trend of reactivity is La￣+>Sc￣+>y￣+.

关键词： s:Ab initio calculation Transition metalion Methane Reaction mechaNism

Surgical treatment of usual type vulvar intraepithelial neoplasia： a study at three academic hospitals

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Chinese Medical Journal 2014年第4期127卷 784-786页

作者： Gu y Zhu L Li XC Lang jh Jin HM Wang dv Department of Obstetrics and Gynecology Peking Union Medical College Hospital Peking Union Medical College Beijing 100730China Department of Gynecology Women&#39 s Hospital School of MedicineZhejiang University Hangzhou Zhejiang 310006 China Department of Obstetrics and Gynecology Tongji Hospital Tongji Medical College Huazhong University of Science and TechnologyWuhan Hubei 430030 China

Vulvar intraepithelial neoplasia （VIN） is a relatively uncommon disease that includes all of the precancerous lesions of vulvar malignancies with an incidence of approximately 2.5 per 100 000 *** 2004,the International Society for the Study of Vulvovaginal Diseases （ISSVD） abolished the old VIN grading system and introduced a two-tier classification for squamous VIN：the usual type and the differentiated type;the term VIN applied only to histologically ＆quot;high-grade＆quot; squamous lesions （old terms VIN 2 and VIN 3）.1 The two types of VIN differ in etiology,morphology,biology,clinical features and malignant *** usual type VIN （uVIN）,which is associated with HPV infection,is the most comrnon subtype,accounting for more than 80% of all VIN ***,the old 3-grade system of the VIN terminology is still used in most of the hospitals in *** this presentation,we categorized the patients with the ISSVD 2004 classification standard and attempted to describe the clinical features and the outcome of surgical treatment of uVIN using the retrospective data from three academic hospitals in China.

关键词： treatment vulva surgical excision vulvar intraepithelial neoplasia