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| 1 | Preparing Nano-ZnS by Solid State Reaction at Room Temperature显示文摘ZnS nanoparticles were prepared by using solid-state reaction method at room temperature in agate mortar for the first time. The average particle size was about 20nm. This reaction is affected by the structure of reactant, crystal water and defects. | Xiao Lin SUN, Guang Yan HONG* Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry,Changchun 130022 | 2001 | Chinese Chemical Letters2001，12，2： | 5 |
| 2 | EXTRACTION KINETICS OF YTTRIUM WITH PURIFIED CYANEX 923 FROM NITRATE MEDIUM显示文摘Mass transfer and extraction kinetics of yttrium with the purified Cyanex 923 in n-heptane from nitrate medium have been investigated by using a constant interfacial cell with laminar flow at 298K. The interfacial adsorption properties of purified Cyanex 923-heptane-0.20mol/L (H, Na)NO3 were studied at 298K. The experimental results show that the mass transfer is controlled by diffusion and the chemical reactions are carried out in the interfacial zone. The extraction rates of yttrium were measured at different chemical compositions by varying ionic strength, pH values and the purified Cyanex 923 concentrations. The initial extraction rate equations were obtained. | H. Tong, Y.G. Wang, J.H. Lei, D.Q. Li, and P. TangDepartment of Applied Chemistry, Wuhan University of Technology, Wuhan 430070, China Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, The Chinese Academy of Sciences, Changchun 130022, China | 2003 | Acta Metallurgica Sinica(English Letters)2003，16，6： | 5 |
| 3 | High Energy and High Coercivity Sintered NdFeB Magnets by Low Oxygen Process显示文摘Using ball milling and single direction pressing, we can produce high performance NdFeB sintered magnets. The oxygen content of sintered magnets can be controlled under 1500x10^-6 and the magnetic performance can be improved by using low oxygen processing. The high preformance NdFeB sintered magnets with B_r=(1.41±0.2)T, _jH_c≥796 kA/m and (BH)max=(390±16) kJ/m^3, have been batch produced. | Kaihong DING, Guozheng LIU, Zhejun LI, Jieming YAN, Yingjie TAO and Bing WU (Baotou Research Institute of Rare Earth, Baotou 014010, China) | 2000 | Journal of Materials Science & Technology2000，16，2： | 5 |
| 4 | Combustion synthesis and magnetic investigation of nanosized CoFe_2O_4显示文摘Nanosized Co spinel ferrite was prepared by a combustion method. The grain size of resultant ferrite can becontrolled by the reaction conditions. Magnetic investigation revealed that the products with an average grain size of 4 nm behave as superparamagnetic materials and have zero coercive force; whereas the samples with an average grain size of 85 nm (near the size of critical single domain) have the maximal coercive force. There were the negative magnetic intergrain interactions which became stronger when the grain size neared that of the single domain. | XU Zhigang, CHENG Fuxiang, ZHOU Biao, LIAO Chunsheng & YAN ChunhuaState Key Laboratory of Rare Earth Materials Chemistry and Applications, PKU-HKU Joint Laboratory on Rare Earth Materials and Bioin-organic Chemistry, Peking University, Beijing 100871, China | 2001 | Chinese Science Bulletin2001，46，5： | 4 |
| 5 | EMBRITTLEMENT OF Fe-Cr-Al ALLOYS AND EFFECT OF Y ADDITION显示文摘A high temperature embrittlement occures in Fe-15Cr-4AI and Fe-20Cr-4Al alloys treatedover 1000 C.It is caused mainly by 475℃ brittleness during cooling.When a secondarytreatment at 500℃ was conducted,the 475℃ brittleness developed very rapidly.After only15 rain of the treating,little plasticity was remained for all samples pretreuted at the temper-atures over 1000℃ and cooled in water.However,no 475℃ brittleness was generated whenpretreating temperature was below 1000℃,Addition of Yttrium can inhibit not only graingrowth,but also 475℃ brittleness.For the alloys with 0.2—0.4 wt-%Y,after treating at800—1300℃,the plasticity did not decrease and the properties of furnace cooled sampleswere not lower than those of water cooled samples. | LI Bei WU Shuangxia LI Dianchen Baotou Research Institute of Rare Earth Ministry of Metallurgical Industry,Baotou,ChinaMA Ruzhang University Science and Technology Beijing,Beijing,China Baotou Research Institute of Rare Earth,Ministry of Metallurgical Industry,Baotou 014010,China | 1993 | Acta Metallurgica Sinica(English Letters)1993，6，2： | 4 |
| 6 | Preparation, Characterization and Luminescent Properties of MCM-41 Type Materials Impregnated with Rare Earth Complex显示文摘Hybrid materials incorporating Eu-(TTA)3·2H20 (hereafter designated as Eu-TTA, with TTA: thenoyltrifluoroacetone) in unmodified or modified MCM-41 by 3-aminopropyl-triethoxysilane (APTES) were prepared by impregnation method. The obtained materials were characterized using X-ray diffraction (XRD), IR and diffuse reflectance spectroscopy and luminescence spectra. All the hybrid samples exhibited the characteristic emission bands of Eu3+ under UV light exci-tation at room temperature, and the excitation spectra showed significant blue-shifts compared to the pure rare-earth complex. Although the red emission intensity in the modified hybrid was almost the half of the red emission intensity in the pure Eu-TTA complex at room temperature, the hybrid showed a much higher thermal stability due to the shielding character of the MCM-41 host. | Lianshe FU and Hongjie ZHANG Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China Philippe Boutinaud Laboratoire des Materiaux Inorganiques, UMR 6002, Universite | 2001 | Journal of Materials Science & Technology2001，17，3： | 4 |
| 7 | Electroluminescent properties of three ternary europium complexes with different phenanthroline derivatives显示文摘Three ternary Eu(III) complexes with general formula of Eu(DBM)3LN (DBM = dibenzoylmethanate, and LN (N = 13 ) stand for three different 1,10-phenanthroline derivatives) have been synthesized for vacuum deposition films-based electroluminescent devices. The complex Eu(DBM)3L3 (L3 = 2-phenyl-3-[3-(carbazol-9-yl)propyl]imidazo[4,5-f]1,10-phenan- throline) was designed with an effort to combine the electron-transporting phenanthroline plat-form and the hole-transporting carbazole group into one molecule expecting to improve both electron and hole transporting properties simultaneously. The results show that the variation of the neutral ligands in Eu(III) mixed ligand complexes is a simple and effective approach to the improvement in the thermal stability, PL and EL properties of materials. A double-layer device with the configuration of ITO/TPD (50 nm)/Eu(DBM)3L3 (50 nm)/Mg0.9Ag0.1 (200 nm)/Ag (100 nm) exhibited Eu(III)-based pure red emission with a maximum brightness of 561 cd/m2 at 16 V, and an onset driving voltage of 8 V. A device with the configuration of ITO/TPD (50 nm)/[Eu(DBM)3L3 (5 nm):BCP (5 nm)]4/BCP (20 nm)/AlQ (10 nm) Mg0.9Ag0.1 (110 nm)/Ag (100 nm) gave high effi-cient and pure red light emission with a luminance of 1419 cd/m2. | BIAN Zuqiang1,2, GAO Deqing1, GUAN Min1, XIN Hao1, LI Fuyou1, HUANG Chunhui1, WANG Kezhi2 & JIN Linpei2 1. State Key Laboratory of Rare Earth Materials Chemistry and Applications, Peking University, Beijing 100871, China 2. Department of Chemistry, Beijing Normal University, Beijing 100875, China | 2004 | Science China Chemistry2004，47，4： | 4 |
| 8 | Distinguishing malignant from normal stomach tissues and its in vivo, in situ measurement in operating process using FTIR Fiber-Optic techniques显示文摘Gastric tissue samples were studied using mid-IR fiber-optic attenuated total reflectance (ATR) spectroscopy. FTIR spectra of 90 tissue samples from 48 patients, including 32 normal and 58 malignant tissue samples, were chosen as examples. Malignancy was usually characterized by the absence of CH and C=O bands, a weak amide II band near 1545 cm-1, a shift of the amide I band to lower wave number, a decrease in the ~1450 cm-1 peak to less than the~1400 cm-1 peak. Subtraction spectra indicate that the amide I and amide II bands of normal and malignant tissues have larger differences in peak positions and relative intensities. The statistical analysis results confirm this conclusion. The results indicate that FTIR fiber optic techniques provide important information about cancerous tissue of the stomach, which can be used to differentiate the malignant tissue from the normal tissue. Based on the above results we successfully realize the detection of the tumor tissues of digestive tract in vivo and in situ. And the results of detection cancer near operating room and in vivo and in situ in the operating room are consistent with the conclusions for the samples stored in liquid N2, which is the basis for the clinical application. | XU Yizhuang1, YANG Limin1, XU Zhi3, ZHAO Ying2, LING Xiaofeng3, LI Qingbo1, WANG Jiansheng4, ZHANG Nengwei3, ZHANG Yuanfu1 & WU Jinguang1 1. The State Key Laboratory of Rare Earth Materials and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China 2. Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China 3. Department of Surgery, Third Hospital, Peking University, Beijing 100083, China 4. Department of Oncology Surgery, the First Hospital of Xi’an Jiaotong University, Xi’an 710061, China Correspondence should be addressed to Wu Jinguang (email: wujg@pku.edu.cn) | 2005 | Science China Chemistry2005，48，2： | 4 |
| 9 | Syntheses, structures and magnetic properties of a family of one-dimensional M(Ⅱ)-lanthanide(Ⅲ) (M = Ni(Ⅱ) and Zn(Ⅱ)) coordination polymers显示文摘A series of 1D nickel(II)/zinc(II)-lanthanide(III) coordination polymers, [M(μ-L)2Ln(NO3)3]n·solvents (HL = bis(2-pyridylcarbonyl)amine; M = Ni, Ln = Gd (1·NiGd), Tb (2·NiTb), Dy (3·NiDy), Ho (4·NiHo), Y (5·NiY); M = Zn, Ln = Gd (6·ZnGd), Tb (7·ZnTb), Dy (8·ZnDy), Ho (9·ZnHo); solvents = H2O or H2O-ethanol), was synthesized and characterized. All of the complexes are isostructural at 293 K and crystallize in the orthorhombic space group Fddd. Magnetic measurements were performed on 1―9, where weak ferromagnetic interaction is found in 1·NiGd, ferromagnetic interaction in 2·NiTb and 3·NiDy, and antiferromagnetic interaction in 4·NiHo. A remarkable dc magnetic field dependence of ac susceptibilities was found in this series of complexes. | ZHANG Wen, ZHAO Fei, LIU Tao & GAO Song Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China | 2007 | Science China Chemistry2007，50，3： | 3 |
| 10 | Viscoelastic tests in liver disease: where do we stand now?显示文摘Hemostasis is a complex physiological process based on the balance between procoagulant and anticoagulant systems to avoid pathological bleeding or thrombosis.The changes in standard coagulation tests in liver disease were assumed to reflect an acquired bleeding disorder,and cirrhotic patients were considered naturally anticoagulated.In the light of the new evidence,the theory of rebalanced hemostasis replaced the old concept.According to this model,the hemostatic alteration leads to a unique balance between pro-coagulant,anticoagulant,and fibrinolytic systems.But the balance is fragile and may prone to bleeding or thrombosis depending on various risk factors.The standard coagulation tests[INR(international normalized ratio),platelet count and fibrinogen]only explore parts of the hemostasis,not offering an entire image of the process.Rotational thromboelastometry(ROTEM)and thromboelastography(TEG)are both point of care viscoelastic tests(VET)that provide real-time and dynamic information about the entire hemostasis process,including clot initiation(thrombin generation),clot kinetics,clot strength,and clot stability(lysis).Despite prolonged PT/INR(international normalized ratio of prothrombin time)and low platelet counts,VET is within the normal range in many patients with both acute and chronic liver disease.However,bleeding remains the dominant clinical issue in patients with liver diseases,especially when invasive interventions are required.VET has been shown to asses more appropriately the risk of bleeding than conventional laboratory tests,leading to decrial use of blood products transfusion.Inappropriate clotting is common but often subtle and may be challenging to predict even with the help of VET.Although VET has shown its benefit,more studies are needed to establish cut-off values for TEG and ROTEM in these populations and standardization of transfusion guidelines before invasive interventions in cirrhotic patients/orthotopic liver transplantation. | Alina Buliarca Adelina Horhat Tudor Mocan Rares Craciun Bogdan Procopet Zeno Sparchez | 2021 | World Journal of Gastroenterology2021，27，23： | 3 |
| 11 | The Lum inescence Properties of M'type of YTaO_4∶Eu显示文摘A series of Eu 3+ doped of Mtype of yttrium orthotantalate Y 1-x Eu x TaO 4( x =0—0.30) was sythesized. The influence of activator concentration on luminescence properties was studied in detail. The strong evidence from excitation spectra, emission spectra and diffusive reflection spectra of this system shows that there is energy transfer from TaO 3- 4 to Eu 3+ via the charge transfer and spectral overlap. | LI Bo, GU Zhen nan ** , DONG Yi , LIN Jian hua and SU Mian zeng (Chemistry Department, State key Laboratory of Rare Earth Materials Chemistry and Applications , Peking University, Bejing 100871, P. R. China) (Received Dec. 26, 1 | 1999 | Chemical Research in Chinese Universities1999，15，3： | 3 |
| 12 | Luminescence of Unusual Bismuth in Barium Borates (BaB_8O_13:Bi)显示文摘 | Qinghua ZENG Tianzhi ZHANG Zhiwu PEI and Qiang SU(Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China) | 1999 | Journal of Materials Science & Technology1999，15，3： | 3 |
| 13 | SEPARATION OF Ce(Ⅳ) AND Th(Ⅳ) FROM RE(Ⅲ) IN HNO_3 SOLUTION BY CYANEX 923 EXTRACTANT显示文摘1.IntroductionStraightchainalkylphosphineoxidemixtureCyanex923isonecommercialextractantsdevelopedbyCytecCanadaInc..ComparedwithotherphosphinereagelltsuchasTOPO,theextractatlthajsseveraladvantagesincludinglittleliablehydrolyzation,lowsolubilityinaqueo... | J. Lu and D.Q. Li(Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, The Chinese Academy of Sciences, Changchun 130022, China)Z.G. Wei and Z.C. Jiang(Department of Chemistryt Wuhan University, Wuhan 430072, China)Ma | 1999 | Acta Metallurgica Sinica(English Letters)1999，12，2： | 3 |
| 14 | Luminescent properties of Ba_3(PO_4)_2:Eu,Tb phosphors显示文摘Luminescence of europium (Ⅲ),europium(Ⅱ) and terbium(Ⅲ) has been observed in Bas(PO4)2:Eu,Tb phosphors which are synthesized in air atmosphere.The valence state of europium is influenced by amount of terbium.It is notable that the relative intensity of the emission spectra peaks corresponding to Eu2+ is increased if the amount of Tb3+ is increased.These phenomena can be explained by an electron transfer mechanism.We predict a new kind of two-rare-earth codoped trichromatic phosphors in Ba3(PO4)2 matrix. | GAO,Yong SHI,Chun-ShanLaboratory of Rare Earth Chemistry and Physics,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun,Jilin 130022,China | 1996 | Chinese Journal of Chemistry1996，14，5： | 3 |
| 15 | Endoscopic or percutaneous biliary drainage in hilar cholangiocarcinoma:When and how?显示文摘Hilar cholangiocarcinoma (hCCA) is a primary liver tumor associated with a dimprognosis. The role of preoperative and palliative biliary drainage has long beendebated. The most common techniques are endoscopic retrograde cholangiopancreatography(ERCP) and percutaneous transhepatic biliary drainage (PTBD);however, recently developed endoscopic ultrasound-assisted methods are gainingmore atention. Selecting the best available method in any specific scenario iscrucial, yet sometimes challenging. Thus, this review aimed to discuss theavailable techniques, indications, perks, pitfalls, and timing-related issues in themanagement of hCCA. In a preoperative setting, PTBD appears to have someadvantages: low risk of postprocedural complications (namely cholangitis) andbetter priming for surgery. For palliative purposes, we propose ERCP/PTBDdepending on the experience of the operators, but also on other factors: the levelof bilirubin (if very high, rather PTBD), length of the stenosis and the presence ofcholangitis (PTBD), ERCP failure, or altered biliary anatomy. | Tudor Mocan Adelina Horhat Emil Mois Florin Graur Cristian Tefas Rares Craciun Iuliana Nenu Mihaela Spârchez Zeno Sparchez | 2021 | World Journal of Gastrointestinal Oncology2021，13，12： | 3 |
| 16 | Synthesis of the Complex Fluoride LiBaF_(3) through a Solvothermal Process显示文摘The complex fluoride LiBaF3 is solvothermally synthesized at 180℃ and characterized by means of X-ray powder diffraction, scanning electron microscopy, thermogravimetric analysis and infrared spectroscopy. In the solvothermal process, the solvents, mole ratios of initial mixtures and reaction temperature play important roles in the growth of the single crystal. | Rui Nian HUA1, Zhi Hong JIA2, De Min XIE1, Chun Shan SHI2* 1Faculty of Chemistry, Northeast Normal University, Changchun 130024 2Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Ch | 2002 | Chinese Chemical Letters2002，13，10： | 2 |
| 17 | EFFECT OF BORIC ACID ON THE EXTRACTION OF BASTNASITE LEACHING LIQUOR BY CYANEX 923显示文摘The effect of boric acid on the extraction of bastnasite leaching liquor by Cyanex 923 was studied. Boric acid wasn’t extracted alone by Cyanex 923 and didn’t influence the cerium(IV) extraction. But it can enhance the extraction of hydrofluoric acid evidently and came into organic phase in form of (HF)(H3BO3).(Cyanex 923). | Liao Wuping, Li Deqian (Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry Chinese Academy of Sciences, Changchun, 130022) | 2000 | 化工学报2000，51，S1： | 2 |
| 18 | Study on Effect of Gd (III) Speciation on Ca (II) Speciationin Human Blood Plasma by Computer Simulation显示文摘Ca (II) speciation and effect of Gd (III) speciation on Ca (II) speciation in human blood plasma were studied by computer simulation. [CaHCO3]+ is a predominant compound species of Ca (II). Gd (III) can compete with Ca (II) for biological molecules. The presence of Gd (III) results in a increase of concentration of free Ca (II) and a decrease of concentration of Ca (II) compounds. | Yue WANG, Xing LU, Shu Yun WANG, Jing Fen HAN, Kui Yue YANG, Chun Ji NIU*, Jia Zuan NI Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022 | 2001 | Chinese Chemical Letters2001，12，2： | 2 |
| 19 | Influences of low-Ti substitution for La and Mg on the electrochemical and kinetic characteristics of AB_3-type hydrogen storage alloy electrodes显示文摘The(La0.67Mg0.33)1-xTixNi2.75Co0.25(x = 0,0.05,0.10,0.15 and 0.20,at%) alloys were synthesized by arc melting and subsequent heat solid-liquid diffusing method.The structure,electrochemical properties and kinetic characteristics of the alloys were investigated systematically.The results showed that all the alloys mainly consisted of the(La,Mg)Ni3,LaNi5 phases,and the lattice parameters and the cell volumes of the(La,Mg)Ni3 and LaNi5 phases decreased with increasing Ti content.The alloy electrodes could be activated to reach their maximum discharge capacity within five cycles.The cycle life after 100 charge/discharge cycles(C100/Cmax) and the high-rate dischargeability at a discharge current density of 1200 mA/g first increased and then decreased.All the results showed that low-Ti content in AB3-type hydrogen storage alloys was beneficial to improvements of the overall electrochemical properties,and the optimum overall electrochemical performance of the alloy electrodes was obtained when x = 0.05. | DONG ZhenWei1,2,WU YaoMing1,MA LiQun2,SHEN XiaoDong2 & WANG LiMin1 1 State Key Laboratory of Rare Earth Resource Utilization,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,C hangchun 130022,China 2 College of Material Science and Engineering,Nanjing University of Technology,Nanjing 210009,China | 2010 | Science China(Technological Sciences)2010，53，1： | 2 |
| 20 | Bright Red Organic Electroluminescent Devices Based on a Soluble Rare Earth Complex Eu(TTA)_3 Phen显示文摘IntroductionOrganicelectroluminescent(EL)deviceshavebecomeoneofthemostimportantsub-jectsbecauseoftheirpotentialapplicationasl... | LI Bin, MA Dong ge, ZHANG Hong jie ** , ZHAO Xiao jiang and NI Jia zuan (Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022) FU Chun yan (Songliao River | 1998 | Chemical Research in Chinese Universities1998，14，3： | 2 |
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