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Quantitative Analysis of Non-Crystalline and Crystalline Solids in Blast Furnace Slag

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Journal of Iron and Steel Research International 2011年第1期18卷 8-10页

作者： WANG Hai feng zhang chun-xia QI Yuan hong State Key l.aboratory ot Advanced Steel Processes and Products Central Iron and Steel Research Institute Beijing 100081 China

The granulation of blast furnace slag （BFS） with water quenching treatment has some disadvantages, such as high water consumption and difficulty for recovery heat. So developing a new dry granulation technique to treat BFS is very important. The applicability of BFS directly depends on the content of non-crystalline solids in the slag after treatment. So it is of theoretical and practical significance to analyze the content of non-crystalline solids in the slag quantitatively and simply. Metallographical test is mainly adopted to quantify the non-crystalline in BFS so far with the shortages such as complex sample, difficult determination, ect. The diffraction intensity of non-crystalline is proportionate to the content of non-crystalline in BFS, ~ray diffraction method was adopted to quantify the noncrystalline and the crystalline solids in BFS. The quantitative coefficient between the crystalline and the non-crystalline solids of BFS is 0.70 of BFS whose main composition （mass percent, %） is： CaO 38.2, SiO2 35.7, Al2Oa 16.3, and MgO 8.3. The relative error of X-ray diffractometer for quantitatively analyzing non-crystalline content of BFS is less than 1%.

关键词： blast furnace slag non crystalline crystalline quantitative analysis

Municipal Waste Disposal by High Temperature Smelting Technique

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Journal of Iron and Steel Research International 2004年第4期11卷 10-14页

作者： SHEN Zong-bin zhang chun-xia zhang You-ping LIU Kun Central Iron and Steel Research Institute

Municipal waste disposal system by high temperature smelting has the following characteristics:1 The smelting temperature is as high as 1 700-1 800 ℃;2 The dioxin is hardly produced;3 The secondary pollution can be avoided because of the absence of heavy metals in the flux;4 The metals and flux after disposal can be reused for construction *** outdated,the idle or discarded medium and small blast furnaces can be reconstructed into a waste resource system with high temperature smelting technique,and it is possible to make full use of their existing functions to reduce the investment and exploit their social function of environmental *** addition,a new waste disposal system with high temperature smelting was designed based on the recycling municipal waste technology abroad.

关键词： waste smelting high temperature dioxin heavy metal

Synthesis and Crystal Structure of a Novel Three-dimensional Manganese(Ⅱ) Coordination Polymer:[Mn(pdc)]_n (pdc=Pyridine-2,4-dicarboxylate)

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Chinese Journal of Structural Chemistry 2008年第2期27卷 245-249页

作者： zhang chun-xia MA Cheng-Bing WANG Mei CHEN Chang-Neng State Key Laboratory of Structural Chemistry Fujian Institute of Research on theStructure of Matter The Chinese Academy of Sciences Fuzhou Fujian 350002 China Graduate School of the Chinese Academy of Sciences Beijing 100039 China

A novel manganese（H） coordination polymer [Mn（pdc）]n （pdc = pyridine-2,4- dicarboxylate） has been synthesized under hydrothermal conditions. The crystal is of monoclinic, space group P211n with a = 6.506（4）, b = 9.392（6）, c = 11.217（7） A, β = 105.650（12）°, V= 660.0（7）A3, Z = 4, Mr = 220.04, Dc = 2.215 g/cm3,μ = 1.971 mm-1, F（000） = 436, Rint = 0.0345, R = 0.0360 and wR = 0.0778 for 1259 observed reflections with I 〉 2σ（I）. In the structure, the Mn（Ⅱ） atom is coordinated in a distorted octahedral arrangement by one pyridine N and five carboxylate O atoms from five pdc ligands, each of which coordinates to five Mn atoms to propagate a three-dimensional layered framework.

关键词： manganese complex crystal structure 3-D network

Failure of EB-PVD Thermal Barrier Coatings Subjected to Thermo-Mechanical Loading

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Chinese Journal of Aeronautics 2006年第B12期19卷 82-85页

作者： CHEN Chen zhang chun-xia GUO Hong-bo GONG Sheng-kai zhang Yue School of Materials Science and Engineering Beij＇ing University of Aeronautics and Astronautics Beijing 100083 China

Thermal barrier coatings （TBCs） were developed to protect metallic blades and vanes working in turbo-engines. The two-layered structure TBCs, consisting of NiCoCrAlY bond coat and yttria stabilized zirconia （YSZ）, were deposited on a cylinder of superalloy substrate by the electron beam-physical vapor deposition （EB-PVD）. The failure mechanism of the TBCs was investigated with a thermo-mechanical fatigue testing system under the service condition similar to that for turbine blades. Non-destructive evaluation of the coated specimens was conducted through the impedance spectroscopy. It is found that the crack initiation mainly takes place on the top coat at the edge of the heated zones.

关键词： electron beam-physical vapor deposition (EB-PVD) thermal barrier coatings (TBCs) thermal-mechanical loading impedance spectroscopy failure

Determination of strychnine and brucine in traditional Chinese medicine preparations by capillary zone electrophoresis with micelle to solvent stacking

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Chinese Chemical Letters 2011年第3期22卷 330-333页

作者： xiao Fang Yin Zhi Li Shuai Hua zhang chun xia Wu chun Wang Zhi Wang College of Science Agricultural University of Hebei Baoding 071001 China

A novel micelle to solvent stacking on-line sample preconcentration technique in capillary zone electrophoresis（MSS-CZE） has been developed to determine the strychnine and brucine in traditional Chinese medicine *** optimal running buffer was 30 mmol/L H_3PO_4 containing 20%acetonitrile at pH *** sample matrix was 8 mmol/L H_3PO_4 containing 5 mmol/L sodium dodecyl sulfate（SDS） at pH *** established MSS-CZE method afforded more than 50-fold improvements in concentration sensitivity compared with typical CZE-UV *** calibration curve was linear in the range from 0.2 to 15.0μg/ mL for both strychnine and brucine,with correlation coefficients of 0.9984 and 0.9976,*** limits of detection（5/ N = 3：1） for strychnine and brucine were 0.02 and 0.05μg/mL,*** MSS-CZE method has been successfully applied to the analysis of strychnine and brucine in Chinese medicinal preparations.

关键词： On-line sample preconcentration Micelle to solvent stacking Capillary zone electrophoresis Strychnine Brucine Traditional Chinese medicine preparation

Sulfur Flow Analysis for New Generation Steel Manufacturing Process

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Journal of Iron and Steel Research International 2008年第4期15卷 12-15,37页

作者： HU Chang-qing zhang chun-xia HAN xiao-wei YIN Rui-yu College of Metallurgy and Energy Hebei Polytechnic University Tangshan 063009 Hebei China State KeyLaboratory of Advanced Steel Process and Products Central Iron and Steel Research Institute Beijing 100081 China

Sulfur flow for new generation steel manufacturing process is analyzed by the method of material flow analysis, and measures for SO2 emission reduction are put forward as assessment and target intervention of the results. The results of sulfur flow analysis indicate that 90 % of sulfur comes from fuels. Sulfur finally discharges from the steel manufacturing route in various steps, and the main point is BF and BOF slag desulfurization. In sintering process, the sulfur is removed by gasification, and sintering process is the main source of SO2 emission. The sulfur content of coke oven gas （COG） is an important factor affecting SO2 emission. Therefore, SO2 emission reduction should be started from the optimization and integration of steel manufacturing route, sulfur burden should be reduced through energy saving and consumption reduction, and the sulfur content of fuel should be controlled. At the same time, BF and BOF slag desulfurization should be optimized further and coke oven gas and sintering exhausted gas desulfurization should be adopted for SO2 emission reduction and reuse of resource, to achieve harmonic coordination of economic, social, and environmental effects for sustainable development.

关键词： material flow analysis sulfur flow analysis steel industry sustainable development SO2 emission

Effects of Interactive Dynamic Scalp Acupuncture on Motor Function and Gait of Lower Limbs after Stroke:A Multicenter,Randomized,Controlled Clinical Trial

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Chinese Journal of Integrative Medicine 2022年第6期28卷 483-491页

作者： zhang Shao-hua WANG Yu-long zhang chun-xia zhang chun-ping xiaO Peng LI Qian-feng LIANG Wei-rong PAN xiao-hua ZHOU Ming-chao Department of Rehabilitation Dapeng New District Nan’ao People’s HospitalShenzhenGuangdong Province518121China Department of Rehabilitation Medicine Shenzhen Second People’s HospitalShenzhenGuangdong Province518037China Department of Rehabilitation Medicine Shenzhen Hospital of Guangzhou University of Chinese MedicineShenzhenGuangdong Province518034China

Objective:To evaluate the effects of interactive dynamic scalp acupuncture(IDSA),simple combination therapy(SCT),and traditional scalp acupuncture(TSA)on motor function and gait of the lower limbs in post-stroke hemiplegia ***:A total of 231 patients with post-stroke hemiplegia was randomly divided into IDSA(78 cases),SCT(78 cases),and TSA(75 cases)groups by a random number *** acupuncture(SA)and lower-limb robot training(LLRT)were both performed in the IDSA and SCT *** patients in the TSA group underwent SA and did not receive *** treatment was administered once daily and 6 times weekly for 8 continuous weeks,each session lasted for 30 *** primary outcome measures included Fugl-Meyer Assessment of the Lower Extremity(FMA-LE),Berg Balance Scale(BBS),Modified Barthel Index(MBI),and 6-min walking test(6 MWT).The secondary outcome measures included stride frequency(SF),stride length(SL),stride width(SW),affected side foot angle(ASFA),passive range of motion(PROM)of the affected hip(PROM-H),knee(PROM-K)and ankle(PROM-A)*** patients were evaluated before treatment,at 1-and 2-month treatment,and 1-,and 2-month follow-up visits,*** events during 2-month treatment were ***:Nineteen patients withdrew from the trial,with 8 in the IDSA group,5 in the SCT group,and 6 in the TSA *** FMA-LE,BBS,6 MWT and MBI scores in the IDSA group were significantly increased after 8-week treatment and2 follow-up visits compared with the SCT and TSA groups(P<0.05 or P<0.01).Compared with pre-treatment,the grade distribution of BBS and MBI scores in the 3 groups were significantly improved at 1,2-month treatment and 2 follow-up visits(P<0.05 or P<0.01).The SF,PROM-H,PFOM-K and PROM-A in the IDSA group was significantly increased compared with the SCT and TSA groups after 8-week of treatment(P<0.05 or P<0.01).Compared with the SCT group,ASFA of the IDSA group was significantly reduced after 8-week of treatment(P<0.05)

关键词： interactive dynamic scalp acupuncture stroke dyskinesia lower extremity motor ability gait self-care capability randomized controlled clinical trial

Effect of Interactive Dynamic Scalp Acupuncture on Post-Stroke Cognitive Function,Depression,and Anxiety:A Multicenter,Randomized,Controlled Trial

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Chinese Journal of Integrative Medicine 2022年第2期28卷 106-115页

作者： zhang Shao-hua WANG Yu-long zhang chun-xia zhang chun-ping xiaO Peng LI Qian-feng LIANG Wei-rong PAN xiao-hua ZHOU Ming-chao Department of Rehabilitation Medicine Dapeng New District Nan'ao People's HospitalShenzhenGuangdong Province(518121)China Department of Rehabilitation Medicine Shenzhen Second People's HospitalShenzhenGuangdong Province(518037)China Department of Rehabilitation Medicine Shenzhen Hospital of Guangzhou University of Chinese MedicineShenzhenGuangdong Province(518034)China

Objective:To compare the clinical effects of interactive dynamic scalp acupuncture(IDSA),simple combination therapy(SCT),and traditional scalp acupuncture(TSA)on cognitive function,depression and anxiety in patients with post-stroke cognitive ***:A total of 660 patients with post-stroke cognitive impairment who were admitted to 3 hospitals in Shenzhen City between May 2017 and May 2020 were recruited and randomly assigned to the IDSA(218 cases),SCT(222 cases)and TSA groups(220 cases)according to a random number *** the patients received conventional drug therapy for cerebral stroke and exercise rehabilitation *** acupuncture and computer-based cognitive training(CBCT)were performed simultaneously in the IDSA group,but separately in the morning and in the afternoon in the SCT *** patients in the TSA group underwent scalp acupuncture *** course of treatment was 8 *** treatment(M0),1(M1)and 2 months(M2)after treatment,as well as follow-up at 1(M3)and 2 months(M4),the cognitive function of patients was assessed using the Mini-Mental State Examination(MMSE)and Montreal Cognitive Assessment Scale(MoCA)Scales;depression,anxiety,sleep quality,and self-care ability of patients were assessed using Hamilton Depression Rating Scale(HAMD),Hamilton Anxiety Rating Scale(HAMA),Pittsburgh Sleep Quality Index(PSQI),and Modified Barthel Index(MBI),*** this trial,all adverse events(AEs)were accurately ***:There were no significant differences in the MMSE,MoCA,HAMD,HAMA,PSQI,and MBI scores among the 3 groups at M0(all P>0.05).In the IDSA group,the MMSE,MoCA and MBI scores from M2 to M4 were significantly higher than those in the SCT and TSA groups,while the HAMD,HAMA and PSQI scores were significantly reduced(all P<0.01).The changes of all above scores(M2–M0,M4–M0)were significantly superior to those in the SCT and TSA groups(all P<0.01,except M4–M0 of HAMD).At M2,the severity of MMSE,HAMD,HAMA,PSQI and MBI

关键词： interactive dynamic scalp acupuncture stroke cognitive function depression anxiety randomized controlled trial Chinese medicine

Profiling and identification of chemical components of Shenshao Tablet and its absorbed components in rats by comprehensive HPLC/DAD/ESI-MS^n analysis

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Chinese Journal of Natural Medicines 2018年第10期16卷 791-800页

作者： MIAO Wen-Juan HU Ying JIA Li zhang chun-xia YANG Wen-Zhi zhang Ping GUO De-An Department of Pharmacy Institute of Hematology and Blood Disease HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeTianjin 300020China Tianjin State Key Laboratory of Modern Chinese Medicine Tianjin University of Traditional Chinese MedicineTianjin 300193China State Key Laboratory of Natural and Biomimetic Drugs School of Pharmaceutical SciencesPeking UniversityBeijing 100191China

Shenshao Tablet(SST),prepared from Paeoniae Radix Alba(PRA)and total ginsenoside of Ginseng Stems and Leaves(GSL),is a traditional Chinese medicine(TCM)preparation prescribed to treat coronary heart ***,its chemical composition and the components that can migrate into blood potentially exerting the therapeutic effects have rarely been *** developed an HPLC/DAD/ESI-MS^n approach aiming to comprehensively profile and identify both the chemical components of SST and its absorbed ingredients(and metabolites)in rat plasma and *** separation was performed on an Agilent Eclipse XDB C_(18) column using acetonitrile/0.1% formic acid as the mobile *** detection was conducted in both negative and positive ESI modes to yield more structure *** with reference compounds(t_R,MS^n),interpretation of the fragmentation pathways,and searching of in-house database,were utilized for more reliable structure elucidation.A total of 82 components,including 21monoterpene glycosides,four galloyl glucoses,two phenols from PRA,and 55 ginsenosides from GSL,were identified or tentatively characterized from the 70% ethanolic extract of *** them,seven and 24 prototype compounds could be detectable in the plasma and urine samples,respectively,after oral administration of an SST extract(4 g×kg^(–1))in *** metabolites were observed in the rat *** findings of this work first unveiled the chemical complexity of SST and its absorbed components,which would be beneficial to understanding the therapeutic basis and quality control of SST.

关键词： Shenshao Tablet Paeoniae Radix Alba Total ginsenoside of Ginseng Stems and Leaves Chemical component