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Engineering doping and defect in graphitic carbon nitride by one-pot method for enhanced photocatalytic hydrogen evolution

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CERAMICS INTERNATIONAL 2023年第4期49卷 6729-6738页

作者： Chang, Xinye Fan, Huiqing Zhu, shuwen Lei, lin Wu, Xiaobo Feng, Cheng Wang, Weijia Ma, Longtao Northwestern Polytech Univ Sch Mat Sci & Engn State Key Lab Solidificat Proc Xian 710072 Peoples R China Northwestern Polytech Univ Inst Flexible Elect Xian 710072 Peoples R China

Hydrogen energy, as one clean energy, is one of the important ways to decarbonize in the future. The advancement of doping and constructing defect engineering in graphitic carbon nitride (g-C3N4) show promise for artificial photosynthesis for H2 evolution using solar energy. Unfortunately, it is still difficult to generate g-C3N4 that has been co-modified by doping and defect and investigate their synergistic effects. In this study, potassium thioacetate was used first-time as a potassium source and dehydrogenation agent to prepare g-C3N4 decorated by K+ ions and cyano groups with enhanced H2 evolution by a one-step method in an air atmosphere. The presence of K+ ions can increase the density of electron clouds in the delocalized pi bond of the heptazine ring. The cyano group may successfully delocalize the solitary valence electrons in conjugated heterocycles since it is a potent electron-withdrawing group. These outcomes allow the modified catalysts to achieve improved H2 evolution activity, reduced interfacial transfer resistance, and increased light absorption and photocurrent. Finally, K(0.05)-CN's photocatalytic hydrogen evolution rate (HER) rose to 1319 mu mol h-1 g-1, which is five-fold better than that of CN, and the normalized HER reached 118 mu mol h-1 m- 2, which was much higher than other reports. This research not only offers a fresh approach to creating photocatalysts with good H2 evolution effi-ciency but also advances a deep understanding of how structural defects and alkali metal doping affect photo -catalytic activity.

关键词： Photocatalysis H2 evolution Potassium thioacetate Defect engineering Doping

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Factors influencing the burden on spousal caregivers of breast cancer survivors

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SUPPORTIVE CARE IN CANCER 2022年第9期30卷 7789-7799页

作者： Tao, lin Hu, Xiaoxia Chen, Hongxiu Xiao, shuwen Zhang, Xiaoxia Sichuan Univ West China Hosp Dept Breast Surg 37 Guoxue St Chengdu 610000 Peoples R China Sichuan Univ West China Sch Nursing Chengdu 610000 Peoples R China Sichuan Univ Natl Chengdu Ctr Safety Evaluat Drugs West China Hosp Chengdu 610000 Peoples R China Sichuan Univ Natl Clin Res Ctr Geriatr West China Hosp Chengdu 610000 Peoples R China

Purpose To examine the status of spouses' burdens of caring for breast cancer survivors and explore the relationships between social support, family resilience, breast cancer survivors' individual resilience, and caregiver burden. Methods A cross-sectional study on 315 young and middle-aged breast cancer survivors and their spousal caregivers was conducted at eight comprehensive Southwest China hospitals. The caregivers completed the Chinese Version of the Family Resilience Assessment Scale, the Perceived Social Support Scale, and the Zarit Caregiver Burden Interview, while breast cancer survivors completed the shortened Chinese version of the Connor-Davidson Resilience Scale. Structural equation modeling was used to evaluate the relationships among social support, family resilience, survivors' individual resilience, and caregiver burden. Results Caregiver burden (45.76 +/- 14.66) was found to be severe. Social support, family resilience, and individual resilience were significantly negatively associated with caregiver burden (beta = -0.421, P < 0.001;beta = -0.208, P < 0.001;and beta = -0.444, P < 0.001, respectively). Individual resilience not only partially mediated the relationship between family resilience and caregiver burden (b = - 0.052;95% confidence interval, - 0.110, - 0.018), but also partially mediated the relationship between support and caregiver burden (b = - 0.045;95% confidence interval, -0.102, - 0.011). Conclusions The findings suggest that higher social support, family resilience, and individual resilience tend to ease caregivers' burden. Healthcare workers should have an in-depth understanding of the care needs of survivors, actively contact social security departments and social organizations to provide financial, technical, and emotional support, and provide family-based care-skills training and psychological counseling to reduce spousal caregivers' burdens.

关键词： Breast cancer Spousal caregiver Resilience Social support Caregiver burden

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Interaction between pituitary adenoma growth and the diaphragma sellae

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ASIAN JOURNAL OF SURGERY 2022年第8期45卷 1638-1639页

作者： lin, Kunzhe Feng, Tianshun Mu, shuwen Wang, Shousen Fujian Med Univ Dept Neurosurg Affiliated Fuzhou Hosp 1 Fuzhou 350009 Peoples R China Xiamen Univ Dongfang Affiliated Hosp Sch Med Dept Neurosurg Xiamen 361000 Peoples R China Fujian Med Univ Fuzong Clin Med Coll Fuzhou 350025 Peoples R China Fujian Med Univ 900th Hosp Dept Neurosurg Fuzong Clin Med Coll Fuzhou 350025 Peoples R China Fujian Med Univ 900th Hosp Dept Neurosurg Fuzong Clin Med Coll Xierhuanbei Rd Fuzhou 350025 Fujian Peoples R China

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横结肠切除与扩大结肠切除治疗横结肠癌疗效比较

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中华结直肠疾病电子杂志 2023年第3期12卷 214-220页

作者：邓振汝林树文吕泽坚郑佳彬廖乾超冯伙伦吴德庆王俊江李勇东莞市滨海湾中心医院普通外科 523900 广东省人民医院胃肠外科 510000

目的比较横结肠切除与扩大结肠切除治疗横结肠癌的疗效差异,寻找合适的手术方式,为临床治疗提供参考。方法收集于2006年1月至2019年12月在广东省人民医院胃肠外科接受手术治疗的横结肠癌患者的临床病理资料。分析两组术式生存及临床指... 详细信息

目的比较横结肠切除与扩大结肠切除治疗横结肠癌的疗效差异,寻找合适的手术方式,为临床治疗提供参考。方法收集于2006年1月至2019年12月在广东省人民医院胃肠外科接受手术治疗的横结肠癌患者的临床病理资料。分析两组术式生存及临床指标差异等。结果共纳入366例患者,其中横结肠切除58例,扩大结肠切除308例。横结肠切除组与扩大结肠切除组的5年总生存率、5年无病生存率差异无统计学意义(均P>0.05);在TNMⅠ期、Ⅱ期、Ⅲ期患者中,横结肠切除组与扩大结肠切除组的5年总生存率差异无统计学意义(均P>0.05)。横结肠切除组术中出血量少于扩大结肠切除组[(55.0±29.0)mL、(96.9±28.3)mL]、横结肠切除组清扫淋巴结数少于扩大结肠切除组[(19.5±8.4)枚、(23.1±11.4)枚],差异均有统计学意义(均P<0.05)。两组的手术时间、术后住院时间、术后出现吻合口漏、腹腔感染、伤口感染、肠梗阻、复发转移差异无统计学意义(均P>0.05)。单因素分析结果显示,术后T分期、术后N分期、脉管癌栓侵犯、术后化疗、手术入路、肿瘤大体分型、肿瘤分化程度是影响患者预后的危险因素(均P<0.05)。将上述单因素危险因素纳入多因素分析显示,术后T分期、术后N分期、脉管癌栓侵犯、术后化疗、手术入路、肿瘤大体分型、肿瘤分化程度均是影响患者生存预后的独立危险因素(均P<0.05)。结论横结肠切除与扩大结肠切除治疗横结肠癌患者远期预后相当,横结肠切除并没有增加术后出现并发症的风险,横结肠切除可安全用于横结肠癌患者。

关键词：结肠肿瘤横结肠肿瘤横结肠切除扩大结肠切除危险因素预后

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Preparation of milk fat globule membrane ingredients enriched in polar lipids: Composition characterization and digestive properties

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JOURNAL OF DAIRY SCIENCE 2024年第7期107卷 4320-4332页

作者： Zhao, Pu Ji, Guozhi lin, Ruixue Zhang, Li Li, Feng Zhang, shuwen Chen, Yun Wei, Wei Wang, Xingguo Jiangnan Univ State Key Lab Food Sci & Resources Wuxi 214122 Peoples R China Jiangnan Univ Collaborat Innovat Ctr Food Safety & Qual Control Sch Food Sci & Technol Wuxi 214122 Peoples R China Inner Mongolia Mengniu Dairy Grp Co Ltd Inner Mongolia Enterprise Key Lab Dairy Nutr Hlth Hohhot 011500 Peoples R China Chinese Acad Agr Sci Inst Food Sci & Technol Key Lab Agrofood Proc & Qual Control Beijing 100193 Peoples R China

In this study, milk fat globule membrane (MFGM) ingredients enriched in polar lipids were prepared using membrane filtration, including microfiltration, diafiltration, and ultrafiltration from butter serum powder. Polar lipids (phospholipids, sterols, and gangliosides) in prepared MFGM ingredients were analyzed by 31 P nuclear magnetic resonance spectroscopy, GC -MS, and ultra -performance liquid chromatography (UPLC)-MS/ MS, respectively. The lipolysis degree and microstructure of MFGM ingredient and soybean lecithin (SL) emulsions during in vitro digestion were also analyzed. Microfiltration showed higher concentration efficiency than ultrafiltration, which increased by 2.16% and 2.73% in phospholipids, respectively. Moreover, diafiltration concentrated more polar lipids (6.39% of phospholipids) than microfiltration. Milk fat globule membrane ingredients had high levels of sphingomyelin (1.27%-1.36%) and ratio of GD 3 to GM 3 is 9.25- to 9.88 -fold. The different lipolysis behaviors between MFGM ingredient emulsions and SL emulsions were correlated with their different polar lipid compositions. Phospholipids from both MFGM ingredients and SL could help maintain the initial structure during the gastric digestion. These results could provide a scientific basis for developing high -polar -lipids food, particularly infant formulas and special functional foods.

关键词： Butter serum powder membrane filtration milk fat globule membrane ingredient polar lipid digestion

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Metabolites and metabolic pathway analysis of sulfadimidine in carp (Cyprinus carpio) based on UHPLC-Q-orbitrap HRMS

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ENVIRONMENTAL RESEARCH 2024年第PT 3期252卷 118967页

作者： Wang, shuwen Xing, Lihong Sun, Xiaojie Li, Zhaoxin Ding, Tao Wang, Jiyao Peng, Jixing Ma, Haijian lin, Ting Yang, Qingli Chinese Acad Fishery Sci Yellow Sea Fisheries Res Inst Key Lab Testing & Evaluat Aquat Prod Safety & Qual Minist Agr & Rural Affairs 106 Nanjing Rd Qingdao 266071 Peoples R China ANPEL Lab Technol Shanghai Peoples R China Qingdao Agr Univ Coll Food Sci & Engn Qingdao Peoples R China

Sulfadimidine (SM2) is an N-substituted derivative of p-aminobenzenesulfonyl structure. This study aimed to analyze the metabolism of SM2 in carp (Cyprinus carpio). The carps were fed with SM2 at a dose of 200 mg/(kg & sdot;bw) and then killed. The blood, muscle, liver, kidney, gill, other guts, and carp aquaculture water samples were collected. The UHPLC-Q-Exactive Plus Orbitrap-MS was adopted for determining the metabolites of SM2 in the aforementioned samples. Twelve metabolites, which were divided into metabolites in vivo and metabolites in vitro, were identified using Compound Discoverer software. The metabolic pathways in vivo of SM2 in carp included acetylation, hydroxylation, glucoside conjugation, glycine conjugation, carboxylation, glucuronide conjugation, reduction, and methylation. The metabolic pathways in vitro included oxidation and acetylation. This study clarified the metabolites and metabolic pathways of SM2 in carp and provided a reference for further pharmacodynamic evaluation and use in aquaculture.

关键词： Sulfadimidine Cyprinus carpio UHPLC-Q-exactive plus orbitrap-MS Metabolites Metabolic pathways

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Integrated membrane process of tubular ultrafiltration-nanofiltration-electrodialysis-reverse osmosis for treating fracturing flowback fluid

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JOURNAL OF CLEANER PRODUCTION 2024年 469卷

作者： Xu, Bing Zhang, Qian Wu, Huanhuan Tian, Qianqian Chai, Wenming Zhang, Ming Shao, Guangyi Tian, shuwen lin, Yakai Yao, Hong Beijing Jiaotong Univ Engn Res Ctr Clean & Low carbon Technol Intelligen Beijing Key Lab Aqueous Typ Pollutants Control & W Sch EnvironmMinist EducBeijing Int Sci & Technol Beijing 100044 Peoples R China Inner Mongolia Lilong Water Co LTD Ordos 017000 Peoples R China Tsinghua Univ Dept Chem Engn Beijing Key Lab Membrane Mat & Engn Beijing 100084 Peoples R China

As an underground source of natural gas, shale gas is important for ensuring national energy security and promoting the "dual carbon" target. However, shale gas extraction produces flowback fluid that requires efficient treatment to avoid negative impacts on the environment and human health. In this study, a pilot plant was constructed to implement a novel membrane-integrated process to treat fracturing flowback fluid. This process employs an aeration reaction sedimentation (ARS) tank and a tubular ultrafiltration (TUF) membrane for pretreatment, followed by three separate membranes for nanofiltration (NF), electrodialysis (ED), and reverse osmosis (RO). The pretreatment removed 99.3% of total hardness, 99.4% of total suspended solids (TSS), and 88.1% of total organic carbon (TOC). Four different types of TUF membranes were tested and compared. It was also found that physico-chemical cleaning of the TUF membrane using the ceramic particle technology resulted in a flux recovery rate of up to 98%. In addition, the NF and ED membranes can remove 99.4% of Na2SO4 2 SO 4 and 90% of NaCl, respectively, resulting in an 85.6% decrease in TSS. Water recovery rate of the total system can reach 90%. Based on concept of sustainable green development, carbon footprint of integrated membrane process for treating fracturing flowback fluid was approximately 86.7 kgCO2 2 eq lower than that of traditional process. Low carbon emissions and no generation of secondary pollutants have become the keys to treat fracturing wastewater. In summary, the integrated TUF-NF-ED-RO process based on membranes is very promising for treating fracturing flowback fluid.

关键词： Fracturing flowback fluid Membrane integrated process Tubular ultrafiltration Nanofiltration Electrodialysis

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DynIceData:a gridded ice-water classification dataset at short-time intervals based on observations from multiple satellites over the marginal ice zone

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Big Earth Data 2024年第2期8卷 249-273页

作者： lin Huang Yubao Qiu Yang Li shuwen Yu Wanyang Zhong Changyong Dou Key Laboratory of Digital Earth Science Aerospace Information Research InstituteChinese Academy of SciencesBeijingChina International Research Center of Big Data for Sustainable Development Goals BeijingChina University of Chinese Academy of Sciences BeijingChina School of Resources and Geosciences China University of Mining and TechnologyXuzhouChina

High-resolution observations of short-term changes in sea ice are critical to understanding ice dynamics and also provide important information used in advice to shipping,especially in the *** individual satellite sensors provide periodic sea ice obser-vations with spatial resolutions of tens of meters,information regarding changes that occur over short time intervals of minutes or hours is *** this study,a gridded ice-water classification dataset with a high temporal resolution was developed based on observations acquired by multiple satellite sensors in the Marginal Ice Zone(MIZ).This dataset-DynIceData-which combines Sentinel-1 Synthetic Aperture Radar(SAR)data with Gaofen-3(GF-3)SAR and SDGSAT-1 thermal infrared imagery was used to obtain observations of the MIZ with a range of temporal resolutions ran-ging from minutes to tens of *** areas of the Arctic covered include the Kara Sea,Beaufort Sea,and Greenland Sea during the period from August 2021 to August ***-oriented segmen-tation and thresholding were used to obtain the ice-water classifi-cation map from Sentinel-1 and GF-3 SAR image pairs and Sentinel-1 SAR and SDGSAT-1 thermal image *** time interval between the images in each pair ranged from 1 minute to 68 ***-kilometer grid sample granules with a spatial resolution of 25 m for the GF-3 SAR data and 30 m for the SDGSAT-1 thermal data were *** classification was verified as having an overall accuracy of at least 95.58%.The DynIceData dataset consists of 7338 samples,which could be used as reference data for further research on rapid changes in sea ice patterns at different short time scales and provide support for research on thermodynamic and dynamic models of sea ice in combination with other environmen-tal data,thus potentially improving the accuracy of sea ice forecast-ing using Artificial *** dataset can be accessed at https://***/10.57760/sciencedb.j00001.00784.

关键词： Sea ice dynamics ice-water classification GF-3 SDGSAT-1 marginal ice zone

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SIRT1-Mediated HMGB1 Deacetylation Suppresses Neutrophil Extracellular Traps Related to Blood-Brain Barrier Impairment After Cerebral Venous Thrombosis

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MOLECULAR NEUROBIOLOGY 2024年第8期61卷 6060-6076页

作者： Mu, shuwen Li, Ziqi lin, Long Wang, Di Yang, Fei Chen, Li Xian, Liang lin, Kunzhe lin, Yinghong Ye, Dan Yang, Yang Wei, Liangfeng Xu, Yongjun Wang, Shousen Fujian Med Univ Dept Neurosurg Fuzong Clin Med Coll Fuzhou 350025 Peoples R China Xiamen Univ Dongfang Affiliated Hosp Sch Med Dept Neurosurg Xiamen 361005 Peoples R China Fujian Med Univ Fujian Canc Hosp Dept Mol Pathol Clin Oncol Sch Fuzhou 350014 Peoples R China Fujian Med Univ Hosp 900 Dept Anesthesiol & Perioperat Med Fuzong Clin Med Coll Fuzhou 350025 Peoples R China Fujian Univ Tradit Chinese Med Fuzhou 350122 Peoples R China Fujian Med Univ Hosp 900 Dept Neurosurg Fuzong Clin Med Coll Fuzhou 350025 Peoples R China Fujian Med Univ Lab Basic Med Fuzong Clin Med Coll Fuzhou 350025 Peoples R China Fujian Med Univ Hosp 900 Lab Basic Med Fuzong Clin Med Coll Fuzhou 350025 Peoples R China

Cerebral venous thrombosis (CVT) is a neurovascular disease with recently increasing incidence. Aseptic inflammatory responses play an important role in the pathology of CVT. Recent studies report that neutrophil extracellular traps (NETs) are major triggers of thrombosis and inflammation in stroke, but their effect on brain injury in CVT requires further validation. In this study, two CVT animal models were used to simulate superior sagittal sinus thrombosis and cortical vein thrombosis. The effects of brain tissue infiltration of NETs and the molecular mechanisms associated with NET formation were deeply explored in combination with proteomics, histology, and serology. The results showed that the cortical vein thrombosis model could be combined with more severe blood-brain barrier (BBB) disruption and showed more severe cerebral hemorrhage. Decreased Sirtuin 1 (SIRT1) expression promotes high mobility group box 1 (HMGB1) acetylation, causing increased cytosolic translocation and extracellular release, and HMGB1 can promote NET formation and recruitment. In addition, corticocerebral accumulation of NETs contributes to BBB damage. This establishes a vicious cycle between BBB damage and NET accumulation. SIRT1 mediated-HMGB1 deacetylation may play a critical role in attenuating BBB damage following CVT. This study employed a combined validation using models of venous sinus thrombosis and cortical vein thrombosis to investigate the deacetylation role of SIRT1, aiming to offer new insights into the pathological mechanisms of brain injury following CVT.

关键词： SIRT1 HMGB1 Deacetylation Neutrophil extracellular trap Cerebral venous thrombosis

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基于FPGA的开放式数控系统手持单元接口的设计

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现代制造工程 2019年第10期 148-152页

作者：陈坤火林述温陈平斌福州大学机械工程及自动化学院

针对“PC+可编程I/O接口卡”体系结构的开放式数控系统的需要,研究了基于“可变频率脉冲均匀倍频”方法的数控手持单元接口,利用可编程I/O接口卡上的现场可编程门阵列(Field Programmable Gata Array,FPGA)通过边沿提取,提高手持单元脉... 详细信息

针对“PC+可编程I/O接口卡”体系结构的开放式数控系统的需要,研究了基于“可变频率脉冲均匀倍频”方法的数控手持单元接口,利用可编程I/O接口卡上的现场可编程门阵列(Field Programmable Gata Array,FPGA)通过边沿提取,提高手持单元脉冲分辨率,利用边沿时间间隔作为均匀倍频依据,并通过设置缓冲区防止计时值丢失。所开发的接口可以克服现有手持单元接口的脉冲序列倍频输出频率固定以及封闭性的缺点。仿真结果表明,手持单元接口能够根据手轮旋转速度变化输出均匀脉冲,同时实现了手持单元的即插即用。

关键词：开放式数控系统手持单元数字倍频现场可编程门阵列可编程I/O接口卡

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