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Journal of Iron and Steel Research International 2019年第10期26卷 1052-1060页

作者： Xiang-chun Liu Bin Fang Zhi-gang Zhao Rui-lun Xie Zhao Lei qiang ling Ping Cui Anhui Key Laboratory of Coal Clean Conversion&Utilization School of Chemistry and Chemical EngineeringAnhui University of TechnologyMa'anshan 243032AnhuiChina

Shenmu(SM)subbituminous coal without caking property was treated by low-temperature rapid pyrolysis(LTRP)to modify its caking and coking *** treated samples were characterized by Fourier transform infrared spectrometry,vitrinite reflectance,and X-ray diffraction to determine the modification ***,caking index(G)and coking indices(mechanical strength,coke reactivity,and coke strength after reaction)were employed to evaluate caking and coking properties,*** results showed that SM coal was gradually upgraded with increasing processing ***,the G values for the treated samples were significantly higher than that for SM coal,and G reached the maximum value at 450℃,implying the modification of caking property and the existence of an optimum temperature(450℃).Additionally,laboratory coking determinations showed that LTRP increased the mechanical strength of coke and coke strength after reaction and decreased coke reactivity when the treated coals were used in the coal blends instead of raw SM ***,LTRP treatment is effective to improve the caking and coking properties of SM coal.A mechanism was proposed for the *** upgrading degree with suitable molecular masses and some releasable hydrogen-rich donor species present within the coal,which dominate the development of caking property,is important.

关键词： Caking property Coking property Non-caking coal Low-temperature rapid pyrolysis Subbituminous coal

Protection mechanism of deacetylase inhibitor on spleen of rats with severe hemorrhagic shock

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Asian Pacific Journal of Tropical Medicine 2016年第6期9卷 553-558页

作者： Gao-Rong Deng qiang ling Bing-Hua Wu Yu-Ying Dong Xiang Gao Tai-qiang Li Xin Miu Zong-Fang Li The Second Affiliated Hospital of Xi'an Jiaotong University Department of Orthopedics Nanchang University Fourth Affiliated Hospital

Objective: To explore the protection and molecular mechanism of histone deacetylase inhibitors(HDACIs) on the spleen of rats with hemorrhagic shock. Methods: A total of 60 SPF male SD rats were selected for the modeling of severe hemorrhagic shock using the method of arterial and venous cannulation with the time-divided bleeding. The measurement of mean arterial blood pressure and blood lactic acid was used to verify the modeling. The modeled rats were randomly divided into shock group, shock+suberoylanilide hydroxamic acid(SAHA) group, shock+autogenous transfusion group, and shock+SAHA+autogenous transfusion group. Three hours after the treatment, the spleen of rats was collected and TUNEL method was employed to detect the apoptosis of spleen cells in each group. Afterwards, real-time PCR and western blot were employed to detect the expression of BCL-2, BAX, and caspass3 in the spleen of rats in each group. Results: A total of 55 rats had successful modeling of severe hemorrhagic shock, with success rate of 92%. Cell apoptosis in the severe hemorrhagic model group was the most serious. After the intervention of HDACIs and the autogenous transfusion, the tissue injury was a bit recovered. Cell apoptosis was least in the shock+SAHA+autogenous transfusion group(P<0.05). After the intervention of HDACIs and the autogenous transfusion, the relative expression of BCL-2 was significantly increased(P<0.05), with highest relative expression of BCL-2 in shock+SAHA+autogenous transfusion group(P<0.05). After the intervention of HDACIs and the autogenous transfusion, the relative expression of BAX was significantly decreased(P<0.05), with lowest relative expression of BAX in the intervention group of single HDACIs. The change in the expression of caspass3 was similar to BAX, namely the relative expression of caspass3 was significantly decreased after the intervention of HDACIs and the autogenous transfusion(P<0.05). Conclusions: HDACIs and autogenous transfusion can all protec

关键词： Hemorrhagic shock HDACIs Apoptosis Histone acetylation

Stability control of water-enriched roofs of coal drifts

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Mining Science and Technology 2009年第4期19卷 467-472页

作者： LI Xue-hua YAO qiang-ling DING Xiao-lei WANG Yi-pin ZHANG Lei State Key Laboratory for Coal Resources and Safe Mining China University of Mining ＆ Technology Xuzhou Jiangsu 221008 China School of Mines China University of Mining ＆ Technology Xuzhou Jiangsu 221116 China

Excavation-and-support induced disturbances are likely to make water-enriched roofs to become weathered and *** development and connection of cracks provide new water channels which may result in water loss,seriously affecting the in-tegrity and stability of roofs,leading to incidents of roof *** of water-enriched rocks surrounding coal drifts is quite diffi-cult in *** on the practical situation of a water-enriched roof of a coal drift in working face 112201 of the Meihuajing coal mine,we studied the deformation features of surrounding rocks and the development of fractured areas and analyzed the major reasons for the decrease in load-carrying capacity,indicating that the key to maintain roof stability of this kind of coal drift is water *** addition,we proposed a staged control technology consisting of:1) surface grouting;2) cable anchor strengthening and 3) roof grouting,which has proven to be successful in this practical *** study indicates that,after the problem of water loss from the water-enriched roof had been effectively solved,a combined support system with high performance bolts can maintain the stability of the bearing structure,resulting in the control of roof stability in this kind of coal drift.

关键词： aquifer roof stability water retention staged control

Visible light promoted aerobic selective photo-oxidation of cyclohexene on LaCo_(x)Cu_(1−x)O_(3) catalyst

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Nano Research 2024年第8期17卷 6940-6950页

作者： Xu Guo Liru Song Wenyu Wang Fengfeng Li Minh Ngoc Ha Jun Tang qiang ling Ping Cui Qingping Ke College of Chemistry and Chemical Engineering Anhui University of TechnologyMaanshan 243000China VNU Key Laboratory of Advanced Material for Green Growth Faculty of ChemistryUniversity of ScienceVietnam National UniversityHanoi 100000Vietnam

Heterogeneously catalyzed liquid oxidation of olefins with O_(2) provides an alternative way for synthesizing high-value added ***,we report a straightforward urea-redox and sol-gel process for synthesizing LaCo_(x)Cu_(1−x)O_(3) for aerobic photooxidation of *** research highlights a marked increase in the proportions of Co^(2+) and Cu+species in a low chemical state,as well as enhanced visible light absorption through this *** investigations suggest that the catalytic process,particularly with LaCo_(0.7)Cu_(0.3)O_(3),involves a radical pathway mediated by reactive oxygen *** presence of Cu+/Co^(2+) species and surface oxygen vacancies is proposed to boost O_(2) adsorption and activation on the catalyst,facilitating the formation of ***,Cu^(2+)/Co^(3+) species are thought to aid in generating cyclohexenederived radical *** efficient aerobic oxidation of cyclohexene on LaCo_(0.7)Cu_(0.3)O_(3) catalyst relies on the formation of reactive oxygen species and carbon radicals,facilitated by its strong visible light *** achieves a cyclohexene conversion of 89.4% and selectivity to cyclohex-2-ene-1-one of 72.2%,along with stable recyclability after six *** creation of nano-structured LaCo_(x)Cu_(1−x)O_(3) through the urea-redox and sol-gel process offers a promising avenue for the development of highly efficient catalysts for the aerobic photo-oxidation of cyclohexene to cyclohex-2-ene-1-one in the future.

关键词： perovskite oxide photocatalysis oxidation cyclohexene LaCoCuO_(3) cyclohex-2-ene-1-one

Magnifying endoscopy in upper gastroenterology for assessing lesions before completing endoscopic removal

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World Journal of Gastroenterology 2012年第12期18卷 1295-1307页

作者： Ning-Li Chai En-qiang ling-Hu Yoshinori Morita Daisuke Obata Takashi Toyonaqa Takeshi Azuma Ben-Yan Wu Department of Gastroenterology Division of South Building Chinese People's Liberation ArmyGeneral Hospital Beijing 100853 China Department of Gastroenterology ChinesePeople's Liberation Army General Hospital Beijing 100853China TakeshiAzuma Department of gastroenterology and endoscopy KobeUniversity Graduate School of Medicine Kobe 650-0017 Japan

Any prognosis of gastrointestinal (GI) cancer is closely related to the stage of the disease at *** submucosal dissection (ESD) and en bloc endoscopic mucosal resection (EMR) have been performed as curative treatments for many early-stage GI lesions in recent *** technologies have been widely accepted in many Asian countries because they are minimally invasive and supply thorough histopathologic evaluation of the ***,before engaging in endoscopic therapy,an accurate diagnosis is a precondition to effecting the complete cure of the underlying malignancy or carcinoma in *** the past few years,many new types of endoscopic techniques,including magnifying endoscopy with narrow-band imaging (MENBI),have emerged in many countries because these methods provide a strong indication of early lesions and are very useful in determining treatment options before ESD or ***,to date,there is no comparable classification equivalent to "Kudo's Pit Pattern Classification in the colon",for the upper GI,there is still no clear internationally accepted classification system of magnifying ***,in order to help unify some viewpoints,here we will review the defining optical imaging characteristics and the current representative classifications of microvascular and microsurface patterns in the upper GI tract under ME-NBI,describe the accurate relationship between them and the pathological diagnosis,and their clinical applications prior to ESD or en bloc *** will also discuss assessing the differentiation and depth of invasion,defying the lateral spread of involvement and targeting biopsy in real time.

关键词： Magnifying endoscopy with narrow-band im-aging Upper gastroenterology Assessment Endoscopicsubmucosal dissection Endoscopic mucosal resection

Monitoring iodine adsorption onto zeolitic-imidazolate framework-8 film using a separated-electrode piezoelectric sensor

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Chinese Chemical Letters 2015年第8期26卷 1022-1025页

作者： Da-Zhong Shen Ting-Ting Cai Xi-Lei Zhu Xiao-Long Ma ling-qiang Kong Qi Kang The Key Lab in Molecular and Nano-materials Probes of the Ministry of Education of China College of Chemistry Chemical Engineering and Materials ScienceShandong Normal University

In this work, a separated-electrode piezoelectric sensor（SEPS）, constructed by a naked quartz crystal mounted between two electrodes, is reported for applications in a corrosive gaseous phase. The response of SEPS was measured by an impedance analysis method. It was shown that SEPS has an excellent frequency stability because its quality factor is in the order of 10^5. The SEPS can be operated even with the electrode gap in air larger than 1 cm. Compared with a conventional quartz crystal microbalance, the resonant frequency of the SEPS is independent of the mass change in the electrode. The SEPS was applied to monitor the adsorption of iodine on quartz surface and zeolitic-imidazolate framework-8（ZIF-8） film as well as in the transfer of iodine between two ZIF-8 films. The SEPS offers the advantages of easy preparation, corrosion-resistant and convenience in combination with mass and optical measurements.

关键词： piezoelectric separated iodine quartz naked impedance resonant adsorbed reserved operated

Chinese children＇s respiratory diseases in 60 years

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Chinese Medical Journal 2009年第19期122卷 2239-2240页

作者： QIN qiang SHEN Kun-ling Department of Pulmonology Beijing Children's Hospital Capital Medical University Beijing 100045 China

This year marks the 60th anniversary of the founding of the People＇s Republic of China. On this occasion,it is worthy to recall the past and look towards the future in order to do a better job in research and control... 详细信息

关键词： respiratory tract infection respiratory distress syndrome asthma sleep-related breathing disorder

3D anisotropy in shear failure of a typical shale

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Petroleum Science 2023年第1期20卷 212-229页

作者： Zi-Dong Fan Li Ren He-Ping Xie Ru Zhang Cun-Bao Li Hui-Jun Lu An-Lin Zhang Qin Zhou Wei-qiang ling MOE Key Laboratory of Deep Earth Science and Engineering Sichuan UniversityChengduSichuan 610065China College of Architecture and Environment Sichuan UniversityChengduSichuan 610065China Institute of Deep Earth Sciences and Green Energy Shenzhen UniversityShenzhenGuangdong 518052China College of Water Resources and Hydropower Sichuan UniversityChengduSichuan 610065China

It is inadequate to study the shear failure anisotropy of shale in only 2D *** at a 3D analysis,a series of direct shear tests was conducted on Longmaxi shale with three typical bedding orientations:arrester,divider and short-transverse *** testing,acoustic emission(AE)and digital image correlation(DIC)techniques were simultaneously employed to monitor failure development,after testing,X-ray computed tomography(CT)scanning was adopted to acquire and reconstruct the fractures inside typical ruptured samples for more detailed *** results indicated that the shear strength parameters exhibited 3D anisotropies and those of the arrester sample did not have equivalent shear strength parameters to the shale *** maximum(minimum)shear strength and cohesion were obtained with the divider(short-transverse)orientation,and the internal friction angle reached its maximum(minimum)with the divider(arrester)*** the AE,DIC and CT techniques,four characteristic stress levels that can capture the progressive shear failure process of shale rocks were identified,and the onset and accelerated development of shear damage-induced dilation were observed at the crack initiation and coalesce stress thresholds,*** the crack coalescence stage,the dominated microcracking mechanism transferred from tensile-mode to *** the arrester and divider orientations,more tensile-mode AE events were generated due to the microcracking along the vertical *** with the divider samples,a more complex fracture network with a larger fracture area and volume was obtained in the arrester samples,whose strengths were smaller.

关键词： Shale Shear Acoustic emission Digital image correlation X-ray computed tomography Fracture network

Esophageal variceal pressure influence on the effect of ligation

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World Journal of Gastroenterology 2015年第13期21卷 3888-3892页

作者： Zhi-Qun Li En-qiang ling Hu Min Hu Wei-Min Li Qi-Yang Huang Yong-Wei Zhao Department of Hepatology and Gastroenterology Chinese PLA General Hospital Department of Gastroenterology and Hepatology Chinese PLA 261 Hospital Gynaecology and Obstetrics Pinggu District Hospital

AIM: To explore the effect of in vitro porcine esophageal variceal pressure on complete ligation degree for polycyclic ligators. METHODS: An in vitro model of experimental porcine venous vessels was used to test various venous pressures. Three treatment groups were designated according to the preset pressure range: P1 = 25-30 cm H2O; P2 = 35-40 cm H2O; P3 = 45-50 cm H2 O. The effect of pressure on ligation was assessed and compared among the groups. RESULTS: Complete ligation was achieved at a rate of 56.25%(18/32) in group P1, 37.5%(12/32) in group P2, and 33.33%(11/33) in group P3(χ2 = 3.6126; P = 0.0573). CONCLUSION: Higher variceal pressures impair the ligation completion rate. Therefore, measuring variceal pressure may help predict the effect of endoscopic ligation and guide treatment choice.

关键词： Endoscopic variceal ligation Mold of animal Varice

Changes in the spectrum of gastric polyps in the Chinese population

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World Journal of Gastroenterology 2015年第33期21卷 9758-9764页

作者： Nan-Nan Fan Jing Yang Gang Sun Zhong-Sheng Lu En-qiang ling Hu Xiang-Dong Wang Yun-Sheng Yang Institute of Digestive Diseases Chinese PLA General Hospital Nankai University School of Medicine

AIM: To evaluate the change in spectrum of gastric polyps in the Chinese population in the past ten ***: A total of 157902 consecutive patients undergoing esophagogastroduodenoscopy(EGD) from 2004 to 2013 in a tertiary hospital were retrospectively reviewed using an EGD *** records of 4043 patients diagnosed with gastric polyps were recalled for *** including demographics,information on polyps such as location,pathological diagnosis,reflux esophagitis and Helicobacter pylori infection were *** focused on epithelial polyps,especially hyperplastic polyps,fundic gland polyps and adenomas,and histological classification of specimens from biopsy and endoscopic polypectomy was performed by professional pathologists,based on the updated *** explore the age distribution of gastric polyps over time,we divided patients with polyps into four groups: A(aged 60 years).Differences in localization,age,and sex distribution of gastric polyps were analyzed by statistical ***: A total of 157902 EGD procedures were performed in ten years at our digestive endoscopy center,of which 4043 cases were diagnosed with gastric polyps confirmed by *** were 2574(63%) female and 1469(37%) male patients with an average age of 54.7 *** overall prevalence of gastric polyps was 2.6%(4043/157902).Our database demonstrated a rising prevalence of gastric polyps over the decade,increasing from 1.0%(80/8025) to 4.70%(828/17787) between 2004 and *** has been a change in the spectrum of gastric polyps with the frequencies of FGPs increasing from 19%(15/80) to 77%(638/828) and hyperplastic polyps decreasing from 65%(52/80) to 15%(123/828).Moreover,data on 1921 polyps in 828 patients diagnosed with gastric polyps in 2013 showed that FGP was the most common type in the current polyp spectrum,making up 81.3%(1562/1921).Location and age distribution of gastri

关键词： Gastric polyps Hyperplastic polyps Fundic gland po