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Experimental Researches on Milled Wood Lignin Pyrolysis Based on Analysis of Bio-oil

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Chemical Research in Chinese Universities 2011年第3期27卷 426-430页

作者： GUO xiu-juan wang Shu-rong wang Kai-ge LUO Zhong-yang State Key Laboratory of Clean Energy Utilization Zhejiang University Hangzhou 310027 P. R. China

The structure of milled wood lignin（MWL）, isolated via the Bjrkman procedure, was studied by means of 1H NMR spectroscopy and Fourier transform infrared spectroscopy, and then its pyrolytic product distribution was investigated on a pyrolysis device. MWL obtained from Manchurian Ash（MA） contained more methoxyl and free phenolic hydroxyl groups per C9 unit than MWL from Mongolian Pine（MP） due to the existence of both guaiacyl and syringyl units, which have a major influence on the pyrolysis behavior of lignin. The results of pyrolysis show that MWL from MA generated a higher yield of bio-oil, mainly composed of phenols, guaiacols, syringols and catechols, and a less yield of char, in addition to the gaseous products CO, CO2, methane and methanol, compared with MWL from MP. Guaiacol and syringol were the typical products from G-lignin and S-lignin, probably attributed to the easier cleavage of the aryl-alkyl linkage in the side chain compared with the C―OCH3 bond in the benzene ring. The degradation of MWL from MP was dominated by the demethylation reaction and the cleavage of aliphatic ―CH2OH at the γ-position, followed by the cracking of the Cα―Cβ and C4―Cα bonds.

关键词： Pyrolysis Milled wood lignin(MWL) Guaiacyl unit Syringyl unit

Surface iodine and pyrenyl-graphdiyne co-modified Bi catalysts for highly efficient CO_(2) electroreduction in acidic electrolyte

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Nano Research 2024年第4期17卷 2381-2387页

作者： Min Zhang juan wang Xin Rong xiu-Li Lu Tong-Bu Lu MOE International Joint Laboratory of Materials Microstructure Institute for New Energy Materials and Low Carbon TechnologiesSchool of Materials Science and EngineeringTianjin University of TechnologyTianjin 300384China

CO_(2) electroreduction to formic acid/formate would contribute to alleviating the energy and climate *** work reports a Bi-based catalyst derived from the in-situ electroreduction of Bi_(2)O_(2)CO_(3) modified with iodine and pyrenyl-graphdiyne(PGDY)on the surface for efficient electroreduction of CO_(2) in acidic electrolyte,with a high partial current density of 98.71 mA·cm^(-2) and high Faradaic efficiency(FE)>90%over the potential range from^(-1).2 to-1.5 V *** hydrogen electrode(RHE),as well as the long-term operational stability over 240 h without degradation in H-type *** results and density function theory calculations show that the synergistic effect of surface iodine and PGDY is responsible for this active and extremely stable process of CO_(2) electroreduction via lowering the energy barriers for formation of*OCHO intermediate,suppressing the competitive HER by enhancing the concentration of both K+and CO_(2) at reaction interface,as well as preventing the dissolution and re-deposition of active Bi atoms on surface during catalytic *** work provides new insight into designing highly active and stable electrocatalysts for CO_(2) reduction.

关键词： CO_(2) reduction electrocatalysis Bi-based catalysts acidic electrolyte

Soil Nutrients in Intensive Agricultural Areas with Different Land-Use Types in Qingzhou County, China

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Pedosphere 2007年第2期17卷 165-171页

作者： ZHAO Geng-Xing LI xiu- juan wang Ri-Yan LI Tao YUE Yu-De College of Resources and Environment Shandong Agricultural University Tai＇an 271018 （China）. Soil ＆ Fertilizer Working Station of Shandong Jinan 250100 （China） Qingzhou Agricultural Bureau Qingzhou 262500 （China）

On the basis of the data obtained from a field survey, the relationship between land use and soil nutrients was evaluated in Qingzhou County, Shandong Province, China, through a statistical analysis of differences in 17 nutrients in five types of cultivated land. The results showed significant effects (P < 0.05 or P < 0.01) of land-use type on soil organic matter and concentration of macronutrients, secondary nutrients, and micronutrients, as well as total salt and soil pH. In vegetable land, because of the large amounts of fertilizer applied to vegetable crops, the concentrations of most soil nutrients, with exception of available Si and micronutrients, were higher than those in grain cropland. Grain cropland had a significantly lower total salt content (P < 0.01) and tended to have a higher soil pH than vegetable land. Within subtypes of land use, dry land, irrigable land, and open-air vegetable land had the highest coefficient of variation (CV) for available P, whereas protected vegetable land had the highest CV for total N and available S. In general, land-use types had greater impact on macronutrients than on secondary nutrients and micronutrients.

关键词： cultivated land land-use type Qingzhou County soil nutrients

The eligibility criteria,training content,and scope of practice for prescriptive authority for midwives:a modified Delphi study

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Frontiers of Nursing 2019年第3期6卷 191-201页

作者： Shi-Fan Han Hong-Xia Ren xiu-juan wang Xiao-Ding Yue Si-Yu Dou School of Nursing Shanxi Medical UniversityTaiyuanShanxi 030001China First Hospital of Shanxi Medical University TaiyuanShanxi 030001China

Objective:To investigate the necessary eligibility criteria for prescriptive authority for midwives,gather suggestions from experts on training content for prescriptive authority for midwives,and explore the scope of practice of their prescriptive authority in certain *** results of this study could serve as a reference for the development of policies on prescriptive authority for ***:Based on a literature search and semistructured interviews,a modified Delphi method was first used to conduct 2 rounds of expert consultation on eligibility criteria and training content for prescriptive authority for *** stage included nursing experts(20)and medical experts(16)engaged in midwifery in many tertiary Grade A hospitals in ***,consultation on the scope of practice of prescriptive authority for midwives was conducted with nursing experts(18)and medical experts(14)engaged in midwifery in many tertiary Grade A hospitals in *** suggestions from the experts were analyzed using statistical methods to confirm the eligibility criteria for prescriptive authority,training content,circumstances,scope of practice for prescriptive authority,and the prescription ***:Among the consulted experts,70.59%(the highest acceptance rate)considered an undergraduate degree to be the minimum educational requirement for midwives to be eligible for prescriptive authority,85.29%(the highest acceptance rate)considered the supervisor nurse to be the minimum technical position experience necessary for midwives to be eligible for having prescriptive authority,and 50%(the highest acceptance rate)considered 5 years to be the minimum number of years of experience in the specialty for midwives to be eligible for prescriptive *** applicants should at least be practicing at Grade C hospitals,which was the consensus among 91.18%of the consulted *** the consulted experts,100%,100%,97.06%,94.12%,and 94.12%agreed that the applic

关键词： Delphi study midwife eligibility criteria training content circumstances scope of practice prescriptive authority prescription forms

Construction of an ontology-based nursing knowledge system

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Frontiers of Nursing 2018年第4期5卷 241-247页

作者： Shi-Fan Han Rui-Fang Zhu Jia Xue Qi Yu Yan-Bing Su xiu-juan wang First Hospital of Shanxi Medical University TaiyuanShanxi 030001China School of Management Shanxi Medical UniversityTaiyuanShanxi 030001China School of Nursing Shanxi Medical UniversityTaiyuanShanxi 030001China

This study proposes the establishment of a knowledge-system ontology in the nursing field. It uses advanced data mining techniques,digital publishing technologies, and new media concepts to comprehensively integrate and deepen nursing knowledge and to aggregate sources of knowledge in specialized technical fields. This study applies all forms of media and transmission channels, such as personal computers and mobile devices, to establish a knowledge-transmission system that provides knowledge services such as knowledge search, update retrieval, evaluation, questions and answers(Q&As), online viewing, information subscription, expert services, push notifications, review forums, and online learning. In doing so, this study creates an authoritative and foundational knowledge service engine for the nursing field, which provides convenient, flexible, and comprehensive knowledge services to members of the nursing industry in a digital format.

关键词： nursing knowledge system ontology construction big data text mining review

Tongxinluo Reverses the Hypoxia-suppressed Claudin-9 in Cardiac Microvascular Endothelial Cells

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Chinese Medical Journal 2016年第4期129卷 442-447页

作者： Kun Liu xiu-juan wang Yan-Ning Li Bin Li Jin-Sheng Qi Jing Zhang Yu wang Department of Biochemistry Hebei Key Laboratory of Medical Biotechnology Hebei Medical University Shijiazhuang Hebei 050017 China Department of Molecular Biology Hebei Key Lab of Laboratory Animal Hebei Medical University Shijiazhuang Hebei 050017 China

Background： Claudin-5, claudin-9, and claudin-11 are expressed in endothelial cells to constitute tight junctions, and their deficiency may lead to hyperpermeability, which is the initiating process and pathological basis of cardiovascular *** tongxinluo （TXL） has satisfactory antianginal effects, whether and how it modulates claudin-5, claudin-9, and claudin-1 1 in hypoxia-stimulated human cardiac microvascular endothelial cells （HCMECs） have not been ***： In this study, HCMECs were stimulated with CoCl2 to mimic hypoxia and treated with ***, the messenger RNA （mRNA） expression of claudin-5, claudin-9, and claudin-l 1 was ***, the protein content and distribution of claudin-9, as well as cell morphological changes were evaluated after TXL ***, the distribution and content histone H3K9 acetylation （H3K9ac） in the claudin-9 gene promoter, which guarantees transcriptional activation, were examined to explore the underlying mechanism, by which TXL up-regulates claudin-9 in hypoxia-stimulated ***： We found that hypoxia-suppressed claudin-9 gene expression in HCMECs （F=7.244;P =0.011） and the hypoxia-suppressed claudin-9 could be reversed by TXL （F=61.911;P =0.000）, which was verified by its protein content changes （F=29.142;P =0.000）.Moreover, high-dose TXL promoted the cytomembrane localization of claudin-9 in hypoxia-stimulated HCMECs, with attenuation of cell ***, high-dose TXL elevated the hypoxia-inhibited H3K9ac in the claudin-9 gene promoter （F=37.766;P =0.000）, activating claudin-9 ***： The results manifested that TXL reversed the hypoxia-suppressed claudin-9 by elevating H3K9ac in its gene promoter, playing protective roles in HCMECs.

关键词： Cardiac Microvascular Endothelial Cells Claudin-9 H3K9 Acetylation Hypoxia Tongxinluo

A critical reflection on the discipline of nursing based on the correct analysis of the relationship between medicine and nursing

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Frontiers of Nursing 2019年第1期6卷 53-58页

作者： Rui-Fang Zhu Hong-Xia Ren xiu-juan wang Chi-Chen Zhang Qi Yu Zhi-Guang Duan Shi-Fan Han School of Nursing Shanxi Medical University School of Management Shanxi Medical University

As nursing becomes a first-level discipline, the central focus of the development process of nursing science is the independent exploration of the future path of nursing care. Although many countries have made efforts to develop nursing as an independent discipline, no remarkable advancement has been achieved due to the incorrect understanding of the relationship between nursing and medicine and the improper comprehension of other factors involved in the process of nursing reform. Teaching and practicing nursing also face many problems. Based on our understanding of the relationship between nursing and medicine and through a careful analysis of the existing problems in the current nursing discipline, this paper provides some insights into the future directions of nursing development by exploring the independently developing nursing discipline in foreign countries.

关键词： medicine nursing reflection nursing discipline nursing theory

Neuroprotection against vascular dementia after acupuncture combined with donepezil hydrochloride：P300 event related potential

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Neural Regeneration Research 2016年第3期11卷 460-464页

作者： Qiang Liu xiu-juan wang Zhe-cheng Zhang Rong Xue Ping Li Bo Li First Teaching Hospital of Tianjin University of Traditional Chinese Medicine Tianjin China Affiliated Hospital of Tianjin Academy of Traditional Chinese Medicine Tianjin China Tianjin Third Central Hospital Tianjin China General Hospital of Tianjin Medical University Tianjin China Tianjin Quanjian International Cancer Hospital Tianjin China

Acupuncture can be used to treat various nervous system ***,168 vascular dementia patients were orally administered donepezil hydrochloride alone（5 mg/day,once a day for 56 days）,or combined with acupuncture at Shenting（DU24）,Tianzhu（BL10）,Sishencong（Extra）,Yintang（Extra）,Renzhong（DU26）,Neiguan（PC6）,Shenmen（HT7）,Fengchi（GB20）,wangu（GB12） and Baihui（DU20）（once a day for 56 days）.Compared with donepezil hydrochloride alone,P300 event related potential latency was shorter with an increased amplitude in patients treated with donepezil hydrochloride and ***-Mental State Examination score was also ***,these differences in P300 latency were identified within different infarcted regions in patients treated with donepezil hydrochloride and *** findings indicate that acupuncture combined with donepezil hydrochloride noticeably improves cognitive function in patients with vascular dementia,and exerts neuroprotective effects against vascular dementia.

关键词： nerve regeneration vascular dementia acupuncture donepezil hydrochloride event related potential cognitive function infarct focus neural regeneration

A bifunctional POM-based Cu-viologen complex with mixed octamolybdate clusters for rapid oxidation desulfurization and effective photogeneration of hydrogen

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Rare Metals 2024年第1期43卷 236-246页

作者： Lin Yang Zhong Zhang Chao-Nan Zhang xiu-Li wang College of Chemistry and Materials Engineering Bohai UniversityJinzhou 121013China Professional Technology Innovation Center of Liaoning Province for Conversion Materials of Solar Cell Bohai UniversityJinzhou 121013China

The design and synthesis of catalysts for the oxidation desulfurization and production of hydrogen are extremely important for solving environmental pollution and energy ***,a novel bifunctional [α-Mo_(8)O_(26)]^(4-)/[β-Mo_(8)O_(26)]^(4-)-based Cu-viologen complex H_(4)[Cu_(2)~ⅠCl_(2)(Hbcbpy)_(4)] [α-Mo_(8)O_(26)] [β-Mo8O_(26)]·H_(2)O(BHU-2,Hbcbpy=1-(4-carboxybenzyl)-4,4'-bipyridinium) was synthesized and characterized by single-crystal X-ray diffraction(XRD),infrared radiation spectra,powder X-ray diffraction(PXRD) and X-ray photoelectron spectroscopy(XPS) *** structural characteristic of BHU-2 is the presence of two types of octamolybdate clusters [α-Mo_(8)O_(26)]^(4-)/[β-Mo_(8)O_(26)]^(4-)and a new binuclear Cu~Ⅰ-Hbcbpy complex linked by Cl-bridges[Cu_(2)ⅠCl_(2)(Hbcbpy)_(4)]^(4+).BHU-2 as a heterogeneous catalyst exhibits excellent activities to the oxidation desulfurization and photocatalytic hydrogen *** room temperature,BHU-2 can catalyze 96% conversion of methyl phenyl sulfide with 98% selectivity,and the process obeys the pseudo-first-order reaction kinetic with the half-life of9.6 *** notorious 2-chloroethyl ethyl sulfide can achieve 99% conversion with 98% selectivity within only1 min at the presence of BHU-2,and the turnover frequency(TOF) is up to 7400 h^(-1).BHU-2 also exhibits high catalytic activity for the oxidation of other aromatic and aliphatic thioethers within short time at room ***,BHU-2 shows a high catalytic activity for visible-light-driven hydrogen evolution with an H_(2) evolution rate of 1677.85 μmol·g^(-1)·h^(-1) within 10 ***,the catalytic activities do not decrease evidently after three cycles,revealing the prominent structural stability and recyclability.

关键词： Polyoxometalate Metal-organic complex Viologen Oxidation desulfurization Photocatalytic hydrogen production