SELECTED ABSTRACTS OF ARTICLES ON RARE METALS FROM CHINESE PERIODICALS

CONTENTS1.Extractive Metallurgy(40～43)2.Metal Materials and Technology(30～32)3.Semiconductors(38～40)4.Metal Physics(24～26)5.Chemical Analysis and Physical Testing(38～39)93-1-40 Study of Pt-Ga/AlOCatalysts Ⅱ.Ef-fect of Ga on the Surface Structure and Acidity of the Cata-lysts The effect of Ga on the surface structure of sup-port and the acidity of Pt-Ga/AlOcatalysts was studiedby using EPMA,XRD,IR,physical adsorption,frontaladsorption of basic gases and cumene cracking.The results

SELECTED ABSTRACTS OF ARTICLES ON RARE METALS FROM CHINESE PERIODICALS

89 1-01 Investigation of SingleMoFeSCubane-Like Cluster Compounds——Ⅲ.TheConversion of Linear Trinuclear Cluster into SingleCubane Cluster and the Structure ofMoFeS(EtNCS)CHCN Reaction ofFe(DMF)[(FeCl)MoS] and EtNCSNa in DMF re-sults in conversion of the linear trinuclear cluster into thesingle cabane—like cluster,MoFeS(EtNCS),thestructure of which has been determined.The influence ofthe ligand—related redox process and the ligation modeon the conversion reaction and the product are discussed.

SELECTED ABSTRACTS OF ARTICLES ON RARE METALS FROM CHINESE PERIODICALS

CONTENTS1.Extractive Metallurgy(9～16)2.Metal Material and Technology(5～9)3.Semiconductor(9～17)4.Metal Physics(5～8)5.Chemical Analysis and Physical Testing(5～11)92 1-9 Determination of Trace Selenium in High-Puri-ty Copper by Polarographic Catalytic Wave after Enrichmentand Separation with Sulfhydrl-Cotton A novel procedure

SELECTED ABSTRACTS OF ARTICLES ON RARE METALS FROM CHINESE PERIODICALS

93-1-38 Chemical Dispersion of MoOand TiOat Interface of MoO/TiOThe dispersion capacity ofMoOand TiOat the interface of MoO/TiOcal-cined at 500℃ for 5h was studied by XRD and FT-IR dif-ference spectra.There is about one monolayer ofnon-crystalline phase of MoOand TiOat the interface.

Frontier and Evolution of Marketing Discipline Based on Scientific Metrological Analysis of Top 4 Marketing Periodicals in 2009-2013

Using scientific metrological method,this paper analyzed all literature published by top 4 marketing periodicals( JCR,JM,JMR,and MS) in 2009- 2013. It is intended to find out hot issues and frontier topics of current marketing research through cluster analysis of key words,get to know cooperation and exchange of organizations through analysis of organization cooperative network,explore new topics of marketing researches with the aid of analysis of abrupt change words,and explore evolution path and development rules of marketing researches through co-citation network analysis.

SELECTED ABSTRACTS OF ARTICLES ON RARE METALS FROM CHINESE PERIODICALS

891—11 Polymerization of Conjugated Dienes withMixed Catalyst of Rare Earth and Other Transition MetalsⅠ.Butadiene Polymerization in the Presence of(NdCl+FeCl).nphen-AIH(i-Bu)Catalytic systemThe mixed catalyst(NdCl+FeCl).nphen with differentFe/Nd ratios was prepared by means of co-precipitation,and the polymerization of butadiene with the catalyst systemcomposed of(NdCl+FeCl).nphen and AIH(i-Bu)was

SELECTED ABSTRACTS OF ARTICLES ON RARE METALS FROM CHINESE PERIODICALS

90 1-1 Liquidus of NdCl-MgCl-LiCl SystemThe liquidus of ternary system NdCl-MgCl-LiCl hasbeen determined by means of DTA.It was found that thereare two surfaces corresponding to the primary crystallizationof NdCland α-(MgCl,LiCl) respectively,and anunivariant line related to the secondary crystallization with aminimun poin M(68.5 wt% NdCl.2.7 wt% MgCl,28.8wt% LiCl.441℃) in the system.Zheng Chaogui et al.,ActaMetallurgica Sinica.25(1989),No.1,B69.

SELECTED ABSTRACTS OF ARTICLES ON RARE METALS FROM CHINESE PERIODICALS

CONTENTS1.Extractive Metallurgy(36～37)2.Metal Material and Technology(26～27)3.Semiconductor(34～35)4.Metal Physics(21)5.Chemical Analysis and Physical Testing(35)

SELECTED ABSTRACTS OF ARTICLES ON RARE METALS FROM CHINESE PERIODICALS

92 1-1 Study on the Adsorption of HPdCland Me-tallic Ions on AlOThe adsorption of HPdCland me-tallic ions on AlOand their dependence have been studied.The adsorption isotherms of HPdCl, HPtCl, HAuCland Cu(NO), Co(NO), Ni(NO)on AlOwere all ofLangmuir type. The amount of HPdCladsorbed onAlOwas decreased by pre-impregnation with metallic ions.

The Eighth Working Meeting of Serial Periodicals of the People's Medical Publishing House and the Meeting of the Ninth Editorial Board of the Chinese Journal for Clinicians and the Second Editorial Board of Global Health Journal were successfully convened

On March 15,2019,in order to study and implement General Secretary Xi Jinping's speech on deepening reform and cultivating worldclass scientific and technological journals,the eighth working meeting of serial periodicals of the People's Medical Publishing House (PMPH),meeting of the ninth editorial board of the Chinese Journal for Clinicians,and the second editorial board of the Global Health Journal were held in Beijing.

SELECTED ABSTRACTS OF ARTICLES ON RARE METALS FROM CHINESE PERIODICALS

contents1.Extractive Metallurgy(17～23)2.Metal Material and Technology(7～10)3.Semiconductor(15～21)4.Metal Physics(7～9)5.Chemical Analysis and Physical Testing(14～19)89 1-17 Preparation of High- Voltage andHigh-Capacitance Tantalum Powder with CarbonReducing The technology of preparing high-voltage andhigh-eapacitance tantalum powder with carbon reducing has

SELECTED ABSTRACTS OF ARTICLES ON RARE METALS FROM CHINESE PERIODICALS

92 1-29 Role of Ceria in Non-precious Metal OxideCatalysts I. The Oxygen Properties of Cu and Ce OxidesSupported on γ-AlOThe reaction between Hand oxy-gen of Cu-O/ γ-AlO(Ⅰ), Ce-O/ γ-AlO(Ⅱ) was studiedby TPR method. The TPR spectra of (Ⅰ) show the peaks at

SELECTED ABSTRACTS OF ARTICLES ON RARE METALS FROM CHINESE PERIODICALS

89 1-24 Sulfur-Resistant Titanium Oxide BasedCatalysts for Deep Oxidation The poisonous effect ofSOon Ti-Cu. Ti-Mn oxides catalysts for the deepoxidation of toluene was investigated by means of infraredspectroscopy and X-ray photoelectron spectroscopy. It wasfound that the poisoning of the catalyst at lower temperaturewas caused by the SOadsorption, and the activity of thepoisoned catalyst could be regenerated. The kinetics of thedeep oxidation of toluene over Ti-Cu oxide catalyst before

Petroleum Periodicals in China Petroleum Industry Circle

ＰｅｔｒｏｌｅｕｍＰｅｒｉｏｄｉｃａｌｓｉｎＣｈｉｎａＰｅｔｒｏｌｅｕｍＩｎｄｕｓｔｒｙＣｉｒｃｌｅ￥（ＧａｏＹｉｎｇ）Petroleum Periodicals in China Petroleum Industry Circle...

Petroleum Periodicals in China Petroleum Industry Circle

ＰｅｔｒｏｌｅｕｍＰｅｒｉｏｄｉｃａｌｓｉｎＣｈｉｎａＰｅｔｒｏｌｅｕｍＩｎｄｕｓｔｒｙＣｉｒｃｌｅPetroleum Periodicals in China Petroleum Industry Circle...

The neutrophil–osteogenic cell axis promotes bone destruction in periodontitis

The immune-stromal cell interactions play a key role in health and diseases. In periodontitis, the most prevalent infectious disease in humans, immune cells accumulate in the oral mucosa and promote bone destruction by inducing receptor activator of nuclear factor-κB ligand (RANKL) expression in osteogenic cells such as osteoblasts and periodontal ligament cells. However, the detailed mechanism underlying immune–bone cell interactions in periodontitis is not fully understood. Here, we performed single-cell RNAsequencing analysis on mouse periodontal lesions and showed that neutrophil–osteogenic cell crosstalk is involved in periodontitis-induced bone loss. The periodontal lesions displayed marked infiltration of neutrophils, and in silico analyses suggested that the neutrophils interacted with osteogenic cells through cytokine production. Among the cytokines expressed in the periodontal neutrophils, oncostatin M (OSM) potently induced RANKL expression in the primary osteoblasts, and deletion of the OSM receptor in osteogenic cells significantly ameliorated periodontitis-induced bone loss. Epigenomic data analyses identified the OSM-regulated RANKL enhancer region in osteogenic cells, and mice lacking this enhancer showed decreased periodontal bone loss while maintaining physiological bone metabolism. These findings shed light on the role of neutrophils in bone regulation during bacterial infection, highlighting the novel mechanism underlying osteoimmune crosstalk.

Tuning Second Chern Number in a Four-Dimensional Topological Insulator by High-Frequency Time-Periodic Driving

Floquet engineering has attracted considerable attention as a promising approach for tuning topological phase transitions.We investigate the effects of high-frequency time-periodic driving in a four-dimensional(4D)topological insulator,focusing on topological phase transitions at the off-resonant quasienergy gap.The 4D topological insulator hosts gapless three-dimensional boundary states,characterized by the second Chern number C_(2).We demonstrate that the second Chern number of 4D topological insulators can be modulated by tuning the amplitude of time-periodic driving.This includes transitions from a topological phase with C_(2)=±3 to another topological phase with C_(2)=±1,or to a topological phase with an even second Chern number C_(2)=±2,which is absent in the 4D static system.Finally,the approximation theory in the high-frequency limit further confirms the numerical conclusions.

Repeated inoculation with rumen fluid accelerates the rumen bacterial transition with no benefit on production performance in postpartum Holstein dairy cows

Background The dairy cow’s postpartum period is characterized by dramatic physiological changes,therefore imposing severe challenges on the animal for maintaining health and milk output.The dynamics of the ruminal microbiota are also tremendous and may play a crucial role in lactation launch.We aim to investigate the potential benefits of early microbial intervention by fresh rumen microbiota transplantation(RMT)and sterile RMT in postpartum dairy cows.Twelve fistulated peak-lactation dairy cows were selected to be the donors for rumen fluid collection.Thirty postpartum cows were divided into 3 groups as the transplantation receptors respectively receiving 10 L fresh rumen fluid(FR),10 L sterile rumen fluid(SR),or 10 L saline(CON)during 3 d after calving.Results Production performance,plasma indices,plasma lipidome,ruminal microbiome,and liver transcriptome were recorded.After fresh and sterile RMT,we found that the molar proportion of propionic acid was increased on d 7 in the FR and SR groups and the bacterial composition was also significantly changed when compared with the CON group.A similarity analysis showed that the similarities between the CON group and FR or SR group on d 7 were 48.40%or 47.85%,whereas the similarities between microbiota on d 7 and 21 in the FR and SR groups were 68.34%or 66.85%.Dry matter intake and feed efficiency were not affected by treatments.Plasmaβ-hydroxybutyrate concentration in the FR group was decreased and significantly different lipids mainly included phosphatidylcholine and lysophosphatidylcholine containing polyunsaturated fatty acids.Hepatic transcriptomics analysis indicated acutephase response pathways were upregulated in the SR group.Conclusions Our study suggests that RMT can shorten the transition process of the ruminal microbiota of postpartum dairy cows with no benefit on dry matter intake or feed efficiency.Inoculation with rumen fluid may not be a useful approach to promote the recovery of postpartum dairy cows.