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Preparation of li-B Alloy and Study of Its Microstructure and Discharge Characteristics

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Journal of Materials Science & Technology 2000年第6期16卷 581-584页

作者： Zhijian liU, Zhiyou li, wei DUAN, Xuanhui qu, Baiyun HUANG and Siqi ZHANG (State Key Laboratory for Powder Metallurgy , Central-South University of Technology, Changsha 410083, China) [Manuscript received November 2, 1999] State Key Lab. for Powder Metall. Central South Univ. of Technol. Changsha 410083 China

A li-B alloy has been prepared using a pretreated amorphous B powder and pure li ingot as starting materials by continually slow addition of B powder and intensified stirring in the process of melting. The microstructure and the discharge characteristic of the materials have been investigated- Results show that the problem of temperature control in synthesis would be modified by means of continual addition of B powder, the li7B6 would be more finely distributed in the metal li by means of intensified stirring. The discharge characteristic of the li-B alloy using amorphous B as starting materials is almost the same with that of using crystalline B.

关键词： li Preparation of li-B Alloy and Study of Its Microstructure and Discharge Characteristics

Safety and efficacy of thalidomide in patients with transfusiondependentβ-thalassemia:a randomized clinical trial

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Signal Transduction and Targeted Therapy 2021年第12期6卷 3723-3729页

作者： Jiang-Ming Chen wei-Jian Zhu Jie liu Gui-Zhen Wang Xiao-Qin Chen Yun Tan wei-wei Xu li-wei qu Jin-Yan li Huan-Ju Yang Lan Huang Ning Cai wei-Da Wang Ken Huang Jian-quan Xu Guo-Hui li Sheng He Tian-Ying Luo Yi Huang Song-Hua liu Wen-Qiang Wu Qi-Yang Lu Mei-Guang Zhou Shu-Ying Chen Rong-Lan li Mei-ling Hu Ying Huang Jin-Hua wei Jun-Min li Sai-Juan Chen Guang-Biao Zhou Department of Hematology Wuzhou Gongren HospitalWuzhou 543001 GuangxiChina Department of Hematology Zhuhai People’s Hospital(Zhuhai Hospital Affiliated with Jinan University)Zhuhai 541000 GuangdongChina State Key Laboratory of Molecular Oncology National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100021China Department of Reproductive Medicine The First Affiliated Hospital of Hebei North UniversityZhangjiakou 075000 HebeiChina State Key Laboratory of Oncology in South China Collaborative Innovation Center for Cancer MedicineMedical Oncology DepartmentSun Yat-Sen University Cancer CenterGuangzhou 510060 GuangdongChina State Key Laboratory of Medical Genomics Shanghai Institute of HematologyNational Research Center for Translational MedicineRuijin Hospital Affiliated with Shanghai Jiao Tong University School of MedicineShanghai 200025China State Key Laboratory of Membrane Biology Institute of ZoologyChinese Academy of Sciences&University of Chinese Academy of SciencesBeijing 100101China Department of Pediatrics Affiliated Hospital of Youjiang Medical University for NationalitiesBaise City 533000 GuangxiChina Department of Hematology Yulin Guinan HospitalYulin 537005 GuangxiChina Department of neurology Wuzhou Gongren HospitalWuzhou 543001 GuangxiChina Guangxi Key Laboratory of Basic Research on Birth Defects Prevention and Treatment Guangxi Zhuang Autonomous Region Women and Children Health Care HospitalNanning 530000 GuangxiChina Department of Hematology Guigang People’s HospitalGuigang 537100 GuangxiChina Department of Hematology Hospital of Traditional Chinese Medicine of Wuzhou CityWuzhou 543002 GuangxiChina Department of Hematology Wuzhou Red Cross HospitalWuzhou 543002 GuangxiChina Department of Hematology Hechi People’s HospitalHechi City 547000 GuangxiChina

Thalidomide inducesγ-globin expression in erythroid progenitor cells,but its efficacy on patients with transfusion-dependentβ-thalassemia(TDT)remains *** this phase 2,multi-center,randomized,double-blind clinical trial,we aimed to determine the safety and efficacy of thalidomide in TDT patients.A hundred patients of 14 years or older were randomly assigned to receive placebo or thalidomide for 12 weeks,followed by an extension phase of at least 36 *** primary endpoint was the change of hemoglobin(Hb)level in the *** secondary endpoints included the red blood cell(RBC)units transfused and adverse *** the placebo-controlled period,Hb concentrations in patients treated with thalidomide achieved a median elevation of 14.0(range,2.5 to 37.5)g/L,whereas Hb in patients treated with placebo did not significantly *** the 12 weeks,the mean RBC transfusion volume for patients treated with thalidomide and placebo was 5.4±5.0 U and 10.3±6.4 U,respectively(Plidomide than *** the extension phase,treatment with thalidomide for 24 weeks resulted in a sustainable increase in Hb concentrations which reached 104.9±19.0 g/L,without blood *** increase in Hb concentration and reduction in RBC transfusions were associated with nonβ0/β0 and HBS1L-MYB(rs9399137 C/T,C/C;rs4895441 A/G,G/G)*** results demonstrated that thalidomide is effective in patients with TDT.

关键词： transfusion patients thalidomide

Boosting bidirectional sulfur conversion enabled by introducing boron-doped atoms and phosphorus vacancies in Ni2P for lithium-sulfur batteries

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Journal of Energy Chemistry 2025年第1期100卷 760-769页

作者： lin Peng Yu Bai Hang li Meixiu qu Zhenhua Wang Kening Sun Advanced Research Institute of Multidisciplinary Science Beijing Institute of Technology Beijing Key Laboratory of Chemical Power Source and Green Catalysis School of Chemistry and Chemical Engineering Beijing Institute of Technology

lithium-sulfur （li-S） batteries have gained great attention due to the high theoretical energy density and low cost,yet their further commercialization has been obstructed by the notorious shuttle effect and sluggish redox ***,we supply a strategy to optimize the electron structure of Ni2P by concurrently introducing B-doped atoms and P vacancies in Ni2P （Vp-B-Ni2P）,thereby enhancing the bidirectional sulfur *** study indicates that the simultaneous introduction of B-doped atoms and P vacancies in Ni2P causes the redistribution of electron around Ni atoms,bringing about the upward shift of d-band center of Ni atoms and effective d-p orbital hybridization between Ni atoms and sulfur species,thus strengthening the chemical anchoring for lithium polysulfides （liPSs） as well as expediting the bidirectional conversion kinetics of sulfur ***,theoretical calculations reveal that the incorporation of B-doped atoms and P vacancies in Ni2P selectively promotes li2S dissolution and nucleation ***,the li-S batteries with Vp-B-Ni2P-separators present outstanding rate ability of 777 m A h g-1at 5 C and high areal capacity of 8.03 mA h cm-2under E/S of 5μL mg-1and sulfur loading of 7.20 mg *** work elucidates that introducing heteroatom and vacancy in metal phosphide collaboratively regulates the electron structure to accelerate bidirectional sulfur conversion.

关键词： lithium sulfur batteries

M1-receptor was involved in N/OFQ-induced inhibition of delayed rectifier potassium current

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M1-receptor was involved in N/OFQ-induced inhibition of dela...

Defects‑Rich Heterostructures Trigger Strong Polarization Coupling in Sulfides/Carbon Composites with Robust Electromagnetic Wave Absorption

中国生理学会第23届全国会员代表大会暨生理学学术大会

作者： li-Hui qu,wei WANG,Xu YANG,Peng WANG,Ying-li SONG,Yu-Rong li Department of Physiology,Harbin Medical University,Harbin 150081,China

Nociceptin/orphanin FQ(N/OFQ) is an endogenous opioid-like heptadecapeptide involved in many neurocognitive functions,including learning and *** and loss of cholingergic neurons are linked to spatial memory and cognitive deficits in Alzheimer’s ***,the relationship between N/OFQ and its receptors and ACh has not been *** this experiment,we used whole-cell path-clamp technique to study the effects of M and M receptors on the inhibition of delayed rectifier potassium current(I) by nociceptin/ orphanin FQ(N/OFQ) in acutely dissociated rat cerebral parietal cortical *** results showed that:(1) Piperazine,M receptor antagonist,antagonized the inhibitory effect of N/OFQ on I and the drop of currents varied from the control value of(30.8±5.6)%to(15.5±2.5)%(P<0.05);(2) M receptor antagonist 4-DAMP had not obvious effects on the inhibitory effect of N/OFQ on *** data suggested that M was involved in the inhibition of N/OFQ on I in acutely isolated cerebral cortical neurons of rats.

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Nano-Micro Letters 2025年第1期17卷 528-547页

作者： Jiaolong liu Siyu Zhang Dan qu Xuejiao Zhou Moxuan Yin Chenxuan Wang Xuelin Zhang Sichen li Peijun Zhang Yuqi Zhou Kai Tao Mengyang li Bing wei Hongjing Wu Mengyang li Bing wei Hongjing Wu School of Physics Xidian UniversityXi’an 710071People’s Republic of China School of Advanced Materials and Nanotechnology State Key Discipline Laboratory of Wide Band Gap Semiconductor TechnologyXidian UniversityXi’an 710071People’s Republic of China School of Microelectronics Xidian UniversityXi’an 710071People’s Republic of China School of Telecommunication Engineering Xidian UniversityXi’an 710071People’s Republic of China MOE Key Laboratory of Material Physics and Chemistry Under Extraordinary School of Physical Science and TechnologyNorthwestern Polytechnical UniversityXi’an 710072People’s Republic of China The Ministry of Education Key Laboratory of Micro and Nano Systems forAerospace School of Mechanical EngineeringNorthwestern PolytechnicalUniversityXi’an 710072People’s Republic of China

Defects-rich heterointerfaces integrated with adjustable crystalline phases and atom vacancies,as well as veiled dielectric-responsive character,are instrumental in electromagnetic *** methods,however,constrain their delicate ***,an innovative alternative is proposed:carrageenan-assistant cations-regulated(CACR)strategy,which induces a series of sulfides nanoparticles rooted in situ on the surface of carbon *** unique configuration originates from strategic vacancy formation energy of sulfides and strong sulfides-carbon support interaction,benefiting the delicate construction of defects-rich heterostructures in M_(x)S_(y)/carbon composites(M-CAs).Impressively,these generated sulfur vacancies are firstly found to strengthen electron accumulation/consumption ability at heterointerfaces and,simultaneously,induct local asymmetry of electronic structure to evoke large dipole moment,ultimately leading to polarization coupling,i.e.,defect-type interfacial ***“Janus effect”(Janus effect means versatility,as in the Greek two-headed Janus)of interfacial sulfur vacancies is intuitively confirmed by both theoretical and experimental investigations for the first ***,the sulfur vacancies-rich heterostructured Co/Ni-CAs displays broad absorption bandwidth of 6.76 GHz at only 1.8 mm,compared to sulfur vacancies-free CAs without any dielectric *** defects-rich heterostructures,this one-pot CACR strategy may steer the design and development of advanced nanomaterials,boosting functionality across diverse application domains beyond electromagnetic response.

关键词： Defects-rich heterointerfaces Sulfides Polarization coupling Electromagnetic wave absorption

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铜钼混合精矿残余药剂测量及脱药试验研究

稀有金属 2017年第7期41卷 810-815页

作者：管晓颖宋永胜李文娟屈伟北京有色金属研究总院生物冶金国家工程实验室北京100088

铜钼矿混合浮选采用石灰、z-200、煤油和2号油的药剂组合可以得到指标良好的铜钼混合精矿,但混合精矿中残余大量药剂,严重影响铜钼分离。本文采用紫外光谱法(UV)定量测定铜钼混合精矿中残余的z-200含量,并探讨了矿浆中煤油,2号油和石灰... 详细信息

铜钼矿混合浮选采用石灰、z-200、煤油和2号油的药剂组合可以得到指标良好的铜钼混合精矿,但混合精矿中残余大量药剂,严重影响铜钼分离。本文采用紫外光谱法(UV)定量测定铜钼混合精矿中残余的z-200含量,并探讨了矿浆中煤油,2号油和石灰对z-200测量的干扰影响。试验结果表明,煤油和2号油的存在对z-200的测量干扰不大,石灰的吸光度随着pH升高而升高,且石灰与z-200在241 nm处吸光度具有加和效应;铜钼混合精矿中残余的z-200的含量约为混合浮选过程中药剂添加量的10%。活性炭可以有效脱除精矿中残余药剂,通过紫外光谱法的定量测量,可准确找到活性炭最佳的用量,从而避免活性炭浪费和对铜钼分离环节的影响,对于混合精矿,当活性炭用量为30kg·t-1(对于原矿,480 g·t-1)时,混合精矿中残余药剂基本被吸附干净。

关键词：铜钼混合精矿 z-200 残余药剂紫外光谱活性炭脱药

Unlocking the stable interface in aqueous zinc-ion battery with multifunctional xylose-based electrolyte additives

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Journal of Energy Chemistry 2025年第1期100卷 770-778页

作者： Xiaoqin li Jian Xiang Lu Qiu Xiaohan Chen Yinkun Zhao Yujue Wang qu Yue Taotao Gao Wenlong liu Dan Xiao Zhaoyu Jin Panpan li Institute for Advanced Study Chengdu University School of Mechanical Engineering Chengdu University College of Food and Biological Engineering Chengdu University Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of China College of Materials Science and Engineering Sichuan University

The growth of dendrites and the side reactions occurring at the Zn anode pose significant challenges to the commercialization of aqueous Zn-ion batteries（AZIBs）. These challenges arise from the inherent conflict between mass transfer and electrochemical kinetics. In this study, we propose the use of a multifunctional electrolyte additive based on the xylose（Xylo） molecule to address these issues by modulating the solvation structure and electrode/electrolyte interface, thereby stabilizing the Zn anode. The introduction of the additive alters the solvation structure, creating steric hindrance that impedes charge transfer and then reduces electrochemical kinetics. Furthermore, in-situ analyses demonstrate that the reconstructed electrode/electrolyte interface facilitates stable and rapid Zn2+ion migration and suppresses corrosion and hydrogen evolution reactions. As a result, symmetric cells incorporating the Xylo additive exhibit significantly enhanced reversibility during the Zn plating/stripping process, with an impressively long lifespan of up to 1986 h, compared to cells using pure ZnSO4electrolyte. When combined with a polyaniline cathode, the full cells demonstrate improved capacity and long-term cyclic stability. This work offers an effective direction for improving the stability of Zn anode via electrolyte design, as well as highperformance AZIBs.

关键词： Solvation

Effects of Dangshen on isolated gastric muscle strips in rats

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World Journal of Gastroenterology 1998年第4期4卷 82-84页

作者： ZHENG TianZhen1, li wei1, qu SongYi1, MA YongMing1, DING YongHui2 and wei Yuling2Subject heading Dangshen stomach muscle, smooth muscle contraction receptors, cholinergic rats

AIM To study the effects of Dangshen [dried root of Codonopsis Pilosula (Franch) Nannf] on contractile activity of isolated gastric muscle strips in rats and its possible mechanism *** Each isolated gastric muscle strip was put in a tissue chamber containing 5ml Krebs solution, constantly warmed by water jacket at 37℃ and supplied with a mixed gas of 95% O2 and 5% CO2. After incubating for 1h with 1g tension, Dangshen of varied concentration was added cumulatively in the tissue chamber at intervals of 2 minutes. The isometrical response was measured on ink-writing *** Dangshen dose dependence increased the resting tension of longitudinal muscle (LM) of fundus (r=0.96, P＜0.01), the mean contractile amplitude of circular muscle (CM) of the stomach body (r=0.87, P＜0.05) and CM of antrum (r=0.98, P＜0.01), and the motility index CM of pylorus (r=0.87, P＜0.05). Atropine (5×10-8mol/L) or Hexamethonium (10-5mol/L) or Indomethacin (5×10-7mol/L) was given 2 minutes before the administration of Dangshen, it did not abolish its dose related manner. Atropine apparently reduced the increasing action of 10% and 30% Dangshen on the resting tesion of LM of fundus (P＜0.05), 30%, 100% and 200% Dangshen on bodied strips (P＜0.05), 100% and 200% Dangshen on antral strips (P＜0.05). Hexamethonium reduced the increasing action of 10% and 30% Dangshen on the resting tesion of LM of fundus (P＜0.05 and P＜0.05), 30%, 100% and 200% Dangshen on bodied strips (P＜0.05), and 100% and 200% Dangshen on pyloric strips (P＜0.05). Indomethacin inhibited the effect of 10% Dangshen on the resting tesion of LM of fundus (P＜0.05), but did not affect the exciting action of Dangshen on strips of body, antrum and *** The results showed that Dangshen possessed exciting action on the isolated gastric smooth muscle strips of the rat. The exciting action of Dangshen was partially mediated via cholinergic M and N receptors.

关键词： strips Effects gastric in isolated muscle of on rats Dangshen

Depression mechanism of sulfite ions on sphalerite and Pb^(2+)activated sphalerite in the flotation separation of galena from sphalerite

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 335-345页

作者： Feng Zhang Chenyang Zhang linlin Wu wei Sun Hongliang Zhang Jianhua Chen Yong Pei Songjiang li Engineering Research Center of Ministry of Education for Carbon Emission Reduction in Metal Resource Exploitation and Utilization Hunan International Joint Research Center for Efficient and Clean Utilization of Critical Metal Mineral ResourcesSchool of Minerals Processing and BioengineeringCentral South UniversityChangsha 410083China State Key Laboratory of Mineral Processing Beijing General Research Institute of Mining&MetallurgyBeijing 100160China Hunan Provincial Key Laboratory of Micro&Nano Materials Interfaces Science College of Chemistry and Chemical EngineeringCentral South UniversityChangsha 410083China School of Resources Environment and MaterialsGuangxi UniversityNanning 530004China Department of Chemistry Xiangtan UniversityXiangtan 411105China China Railway Resource Group Co.Ltd Beijing 102300China

The depression mechanism of sulfite ions on sphalerite and Pb^(2+)activated sphalerite in the flotation separation of galena from sphalerite still lacked in-depth ***,the depression mechanism of sulfite ions on sphalerite and Pb^(2+)activated sphalerite in the flotation separation of galena from sphalerite was further systematically investigated with experiments and density functional theory(DFT)*** X-ray photoelectric spectroscopy(XPS)results,DFT calculation results,and frontier molecular orbital analysis indicated that sulfite ions were difficult to be adsorbed on sphalerite surface,suggesting that sulfite ions achieved depression effects on sphalerite through other non-adsorption ***,the oxygen content in the surface of sphalerite treated with sulfite ions in creased,which enhanced the hydrophilicity of the sphalerite and further increased the difference in hydrophilicity between sphalerite and ***,sulfite ions were chelated with lead ions to form PbSO_(3)in *** hydrophilic PbSO_(3)was more easily adsorbed on sphalerite than *** interaction between sulfite ions and lead ions could effectively inhibit the activation of *** addition the UV spectrum showed that after adding sulfite ions,the peak of perxanthate in the sphalerite treated xanthate solution was significantly stronger than that in the galena with xanthate solution,indicating that xanthate interacted more readily with sulfite ions and oxygen mo lecules within the sphalerite system,leading to the formation of ***,sulfite ions hardly depressed the flotation of ga lena and could promote the flotation of galena to some *** study deepened the understanding of the depression mechanism o sulfite ions on sphalerite and Pb^(2+)activated sphalerite.

关键词： sphalerite galena sulfite ion density functional theory depression mechanism