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Oxygen vacancies enriched Ir/WOx catalysts for the directly chem-catalytic conversion of cellulose to ethanol

Tungsten 2025年第1期7卷 88-99页

作者： Yu-Jing Weng Zhao-ying Ding ying-chao li Yuan-Feng Wu Yuan-Yang Xu Rui Chen Xiao-Lei Zhao Hai-Yong Wang Da-Lei Zhang Yu-Long Zhang Henan Key Laboratory of Coal Green Conversion and International Joint Laboratory of Coal Clean Utilization College of Chemistry and Chemical Engineering Henan Polytechnic University Key Laboratory of Renewable Energy Guangzhou Institute of Energy Conversion Chinese Academy of Sciences liaoning Institute of Energy Technology

Tungsten and its oxides are highly versatile catalysts with unique properties that hold great promise for a wide array of applications,including biological pathways and chemical *** chemo-catalysis of cellulose to ethanol presents a promising avenue for ethanol synthesis with the potential for enhanced efficiency compared to conventional methods,offering a sustainable and carbon-neutral alternative to existing petrochemical and biological ***,Ir/WOxcatalysts enriched with oxygen vacancies were meticulously prepared and demonstrated remarkable catalytic performance in converting cellulose to ethanol directly in the presence of tungstic *** catalyst achieved a high ethanol yield of 66.5%under optimal reaction conditions,approaching the theoretical yield limit of traditional ethanol *** results revealed the presence of oxygen defects,Bronsted/Lewis acidity,and Ir nanoclusters on the catalyst surface,working synergistically to facilitate the cascade catalysis of cellulose hydrolysis,sugar retro-aldol condensation reaction,and C2 intermediate hydrodeoxygenation to *** situ Fourier transform infrared spectrometer analysis confirmed the catalyst's ability to enhance the adsorption and activation of ethylene glycol for ethanol *** manipulating subtle structural features,this study offers a fresh perspective on tungsten group catalyst design and underscores the importance of synergistic effects among catalytic sites for the efficient production of ethanol from cellulose.

关键词： Cellulosic ethanol Chem-catalysis Hydrogenolysis Retro-aldol condensation Tungsten

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Heme oxygenase-1 induction by hemin protects liver cells from ischemia/reperfusion injury in cirrhotic rats

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World Journal of Gastroenterology 2007年第40期13卷 5384-5390页

作者： Hui Xue Hua Guo ying-chao li Zhi-Ming Hao Department of Gastroenterology The First Affiliated Hospital Xi'an Jiaotong University Medical College Xi'an 710061 Shaanxi Province China

AIM： To investigate the potential protective effect of HO-1 on cirrhotic liver cells in rats.METHODS： Male Wistar rats included in the current study were randomly divided into 5 groups as follows： normal （N） group; liver cirrhotic （LC） group; sham （S） group; I/R group and I/R ＋ hemin group. The model for inducing liver cirrhosis in rats was established according to a previously published protocol. Following this the segmental hepatic ischemia reperfusion operation was carried out. The rats were treated with 30 l^mol/kg hemin （HO-1 inducer, ferric portoporphyrin IX chloride） i.p. or 0.9% NaCI （control） 24 h and 12 h before hepatic ischemia for 30 min or sham laparotomy. Blood was collected for serum enzymatic measurement 6 and 12 h after reperfusion or sham laparotomy. HO-1, NF-κB and caspase-3 expressions were assessed by immunohistochemical analysis.RESULTS： The expressions of proteins are inversely correlated to the gray values. HO-1 expression in the I/R ＋ hemin group was increased significantly than I/R group at 6 h and 12 h after hepatic I/R （6 h： 112.0± 8.3 vs 125.1± 5.7, P 〈 0.01; 12 h： 120.8± 11.0 vs 132.4 ± 6.2, P 〈 0.01）. Hemin improved serum manganese superoxide dismutase （MnSOD）（6 h： 131.3 ± 17.6 vs 107.0 ± 13.9, P 〈 0.01; 12 h： 141.4 ：E 12.5 vs 118.3± 10.2, P 〈 0.01）, lessened liver cell injury, decreased caspase-3（6 h： 166.7 ± 8.1 vs 145.5 ± 14.6, P 〈 0.01; 12 h： 172.8± 3.8 vs 148.0 ±6.5, P 〈 0.01） and NF-κB expression （6 h： 150.2 ± 8.6 vs 139.7 ±6.0, P 〈 0.01; 12 h： 151.1 ± 5.9 vs 148.1± 5.3, P 〉 0.05） and serum alanine aminotransferase （ALT）（6 h： 413.3± 104.1 vs 626.8 ±208.2, P 〈 0.01; 12 h： 322.2 ± 98.8 vs 425.8 ± 115.4, P 〈 0.05）, aspartate aminotransferase （AST）（6 h： 665.2 ± 70.1 vs 864.3± 70.4, P 〈 0.01; 12 h： 531.1 ± 98.6 vs 664.4± 115.6, P 〈 0.01）, malondialdehyde （MDA） levels （6 h： 11.1 ± 2.17 vs 13.5 ±2.01, P 〈 0.01; 12 h： 9.36 ±1.10 vs 10.8 ± 1.62, P 〈 0.05） in the I/R ＋ hemin group when compared with the I/R group.CONCLUSION： These

关键词： Heme oxygenase-1 Ischemia reperfusion Caspase-3 Nuclear factor-κB liver cirrhosis

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QTDMAC:MAC protocol for QoS support in MANET using smart antennas

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重庆邮电大学学报（自然科学版） 2009年第2期21卷 262-266页

作者： ZHANG ying-chao GUAN li-li College of Information and Control Nanjing Information Science and Technology University Nanjing 210044 P. R. China

Unlike directional antennas, smart antennas offer MANET (Mobile Ad hoc Net works) potential increases in their achievable throughput and capacity. Based on the development of smart antenna technology, we studied the MAC protocol for QoS support was studied, which becomes the hot issue in multimedia services. The protocol divides the channel into the data channel and the control channel, node sends forecast guarantee to compete the channel. And after completing the RTS / CTS handshake appointment, node is reserved for data transmission. Node can send Busy Tones to prevent the problem of the deafness nodes and hidden terminal. At last if the direct link between the sender and receiver has low quality and low rate, data packets may be delivered faster through a relay node. Through the analytical results, QTDMAC with the protocol IEEE802.1 and DMAC were compared. The QTDMAC protocol is proved the superiority in throughput and the real-time delay business.

关键词： MANET网络智能天线技术 QoS支持 MAC协议多媒体服务议定书定向天线移动Ad

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Genetic relationships of introduced Colorado potato beetle Leptinotarsa decemlineata populations in Xinjiang, China

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Insect Science 2013年第5期20卷 643-654页

作者： Jing-Jie Zhang Juan Yang ying-chao li Ning liu Run-Zhi Zhang Key Laboratory of Zoological Systematics and Evolution Institute of Zoology Chinese Academy of Sciences Graduate University of Chinese Academy of Sciences Beijing College of Agriculture Guangxi University Nanning Beijing Forestry University State Key Laboratory of Integrated Management of Pest Insects and Rodents Institute of Zoology Chinese Academy of Sciences Beijing China

The Colorado potato beetle （CPB）, Leptinotarsa decemlineata （Say）, is an infamous invasive species worldwide that aggressively attacks potato and other Solanaceae crops. CPB was first found in China in 1993 and has since spread across 2.77 × 105 km2 in Xinjiang Uygur Autonomous Region. To better understand genetic variation and migration patterns, we used seven polymorphic microsatellite loci to elucidate the genetic relationships and gene flow among 10 CPB populations across Xinjiang. （i） Overall low levels of genetic diversity were detected on the entire population in Xinjiang but most of the diversity was retained among populations during invasion. （ii） The mean pairwise FST was low （0.071 ± 0.043） among populations. The genetic differentiation was little （pairwise FST 0.038 ± 0.016） between the five interior populations （Wusu, Urumqi, Jimsar, Qitai and Mulei） and Tacheng population. The six populations might come from the same genetic group via Bayesian clustering and were closely related on a neighbor-joining tree. Combining the history data, the five interior populations may have originated from Tacheng. （iii） Gene flow was frequent, especially among the five interior populations. Individuals from the interior populations could be assigned to Tacheng at higher probabilities （means 0.518 ± 0.127） than vice versa （means 0.328 ± 0.074）, suggesting that the beetle population has spread from the border to the interior in Xinjiang.

关键词： China Colorado potato beetle genetic variation invasive pest Leptinotarsa decemlineata Xinjiang

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Onset of cavitation by the strong tension spike from a tube-arrest apparatus

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Science China(Physics,Mechanics & Astronomy) 2010年第2期53卷 301-305页

作者： ying ChongFu & li chao Institute of Acoustics,Chinese Academy of Sciences,Beijing 100190,China Institute of Acoustics Chinese Academy of Sciences Beijing China

Our earlier paper has identified a wave of Type 1 that is the pressure wave generated in the liquid-filled glass tube through the tube-arrest method by pulling and arresting the tube,when cavitation is prohibited. If cavitation is produced,a wave of Type 2 generally appears. The present paper takes the transition between wave types as indication of cavitation onset,and looks for a liquid parameter which controls the onset. One such an attempt shows the concentration of a dissolved gas in the liquid is the controlling factor with the result that the threshold of cavitation onset decreases with the increase of the concentration. Then a specially designed experiment reveals that possibly the mobility of the gas molecules (and also that of the liquid molecules) transiently affects the threshold so as to induce a large rise and fall in time of hours. The threshold finally settles down to some stable value under atmospheric pressure.

关键词： tube-arrest method cavitation onset controlling parameter concentration of dissolved gas mobile gas molecules liq-uid tensile strength

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Guiding function of positron emission tomographycomputed tomography examination in the diagnosis and treatment of ocular adnexal mucosa associated lymphoid tissue lymphoma

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International Journal of Ophthalmology(English edition) 2024年第4期17卷 693-699页

作者： Xuan Zhang Qi-Han Guo Rui liu Jing li ying-chao li Jian-Min Ma Beijing Ophthalmology and Visual Sciences Key Laboratory Beijing Tongren Eye CenterBeijing Tongren HospitalCapital Medical UniversityBeijing 100005China Tai’an City Central Hospital Qingdao UniversityTai’an 271000Shandong ProvinceChina

AIM:To explore the role of positron emission tomographycomputed tomography(PET-CT)examination in the diagnosis and treatment of ocular adnexal mucosa associated lymphoid tissue lymphoma(OAML).METHODS:The general clinical data,postoperative PET-CT results,treatment regimens,and the prognosis of 21 histopathologically confirmed OAML patients between October 2017 and September 2021 were *** the 21 patients,five patients underwent surgical treatment alone,13 patients underwent surgical treatment combined with radiotherapy,and three patients underwent surgical treatment combined with ***:The follow-up period ranged from 8 to 79mo,with four cases of recurrence and no *** PETCT examination,two patients exhibited both local ocular metabolic elevation and systemic metastasis,and one of these patients had cervical lymph node metastasis,while the other had submandibular and parotid gland *** patients showed only local ocular metabolic elevation,while 10 patients had no abnormal metabolic activity ***:PET-CT examination plays a crucial role in detecting residual lesions and recurrence following tumor resection,aiding in precise disease staging,and facilitating the development of personalized treatment plans,ultimately improving patient prognosis.

关键词： ocular adnexal mucosa associated lymphoid tissue lymphoma positron emission tomographycomputed tomography ocular tumors

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Prevalence and characteristics of ophthalmological extra-intestinal manifestations in Chinese patients with inflammatory bowel disease

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International Journal of Ophthalmology(English edition) 2016年第10期9卷 1476-1479页

作者： ying-chao li Wei-Zhi li Chang-Rui Wu Yun Feng li Ren Chen Mi Yang li Department of Gastroenterology the First Affiliated Hospital of Xi'an Jiaotong University Department of Ophthalmology the First Affiliated Hospital of Xi'an Jiaotong University Department of Otolaryngology-Head and Neck Surgery the Second Affiliated Hospital of Xi'an Jiaotong University

AIM：To investigate the prevalence of ophthalmological extra-intestinal manifestations（O-EIMs） in Chinese patients with inflammatory bowel disease（IBD） and to identify risk factors for the development of ***：The study population consisted of Chinese patients with a definite diagnosis of Crohn＇s disease（CD） or ulcerative colitis（UC） in a large teaching hospital between January 1995 and December *** and clinical characteristics of patients were extracted ***： In this twenty-year cohort,645 IBD patients（517 with UC,128 with CD） were *** them122（18.9%） exhibited at least one *** 13 patients（2.0%） developed O-EIMs,7 of CD（5.5%） and 6 of UC（1.2%）.Clinical ophthalmological manifestations included redness（76.9%）,burning（61.5%）,pain（38.5%）,itching（15.4%） of eyes and vision change（7.7%）.O-EIMs included episcleritis（7）,uveitis（5） and dry eye（1）.OEIMs were more prevalent in female（odds ratio for male0.61,95% confidence interval 0.52-0.73,P 〈0.0001）,and patients who had IBD diagnosis at young age（odds ratio for patients aged 〉30 years 0.76,95% confidence interval0.65-0.88,P 〈0.0001）.CONCLUSION： The frequency of O-EIMs in Chinese patients with IBD is lower than the rates reported in the studies of European and American *** uveitis are the most common O-EIMs.O-EIMs are more frequent in patients with CD and more prevalent in female and patients who have IBD diagnosis at young age.

关键词： ophthalmological extraintestinal manifestations inflammatory bowel disease episcleritis uveitis

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The Herbicidal Activity of Mutant Isolates from Botrytis cinerea

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Agricultural Sciences in China 2006年第8期5卷 622-628页

作者： ZHANG Jin-lin ZHANG li-hui liU ying-chao MA Juan li Chuan DONG Jin-gao Mycotoxin Laboratory Hebei Agricultural University Baoding 071001 P.R.China

Fifteen mutant isolates were obtained by ultraviolet mutation from parent isolate Botrytis cinerea BC-4. Among them three mutant isolates, BC4-1, BC4-2, and BC4-15, showed strong herbicidal activity. BC4-1 showed maximum herbicidal activity for inhibition of germination and growth of Digitaria sanguinalis L. and Arnaranthus retroflexus L. The results also showed that herbicidal activity was influenced by differing pH of PD media, with pH value of 4.0 being the optimum. The crude toxin was extracted using chloroform, petroleum ether, and ethyl acetate, respectively, and the ethyl acetate extracts showed the strongest inhibitory activity on the germination and growth of D. sanguinalis L. and A. retroflexus L. Using HPLC, one fraction with an absorption peak at 271 nm was separated from the crude toxin. This fraction could strongly inhibit the growth of D. sanguinalis L. at a concentration of 100 mg L^-1 and could completely inhibit the seed germination of D. sanguinalis L. and A. retroflexus L. at a concentration of 50 mg L^-1 .

关键词： Botrytis cinerea toxin ultraviolet mutation herbicide activity separation and purification

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A Review on Thermal Management of li-ion Battery:from Small-Scale Battery Module to Large-Scale Electrochemical Energy Storage Power Station

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Journal of Thermal Science 2025年第1期34卷 1-23页

作者： CHEN Zhifeng JIA li YIN liaofei DANG chao REN Honglei ZHANG Zhiqiang Beijing Key Laboratory of Flow and Heat Transfer of Phase Changing in Micro and Small Scale School of MechanicalElectronic and Control EngineeringBeijing Jiaotong University

li-ion battery is an essential component and energy storage unit for the evolution of electric vehicles and energy storage technology in the ***,in order to cope with the temperature sensitivity of li-ion battery and maintain li-ion battery safe operation,it is of great necessary to adopt an appropriate battery thermal management system(BTMS).In this paper,the current main BTM strategies and research hotspots were discussed from two aspects:small-scale battery module and large-scale electrochemical energy storage power station(EESPS).The practical application situation,advantages and disadvantages,and the future development trend of each heat dissipation method(air,liquid,PCM,heat pipe,hybrid cooling) were described in *** them,the air cooling and liquid cooling were reviewed in-depth based on the engineering *** PCM,heat pipe and hybrid cooling were reviewed extensively based on the latest *** research provides a comprehensive understanding for the BTMS in all scales.

关键词： battery thermal management cooling methods large-scale electrochemical energy storage power station small-scale battery module

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Transjugular intrahepatic portosystemic shunt vs endoscopic therapy in preventing variceal rebleeding

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World Journal of Gastroenterology 2012年第48期18卷 7341-7347页

作者： Hui Xue Meng Zhang Jack XQ Pang Fei Yan ying-chao li liang-Shan Lv Jia Yuan Muna Palikhe Wei-Zhi li Zhi-Lun Wang Department of Gastroenterology First Affiliated Hospital of Xi'an Jiaotong University Department of Gastroenterology Central Hospital of Nanyang City Faculty of Public Health School of MedicineXi' an Jiaotong University

AIM:To compare early use of transjugular intrahepatic portosystemic shunt(TIPS) with endoscopic treatment(ET) for the prophylaxis of recurrent variceal ***:In-patient data were collected from 190 patients between January 2007 and June 2010 who suffured from variceal *** who were older than 75 years;previously received surgical treatment or endoscopic therapy for variceal bleeding;and complicated with hepatic encephalopathy or hepatic cancer,were excluded from this ***-five cases lost to follow-up were also *** analysis was done in 126 eligible *** them,64 patients received TIPS(TIPS group) while 62 patients received endoscopic therapy(ET group).The relevant data were collected by patient review or telephone *** occurrence of rebleeding,hepatic encephalopathy or other complications,survival rateand cost of treatment were compared between the two ***:During the follow-up period(median,20.7 and 18.7 mo in TIPS and ET groups,respectively),rebleeding from any source occurred in 11 patients in the TIPS group as compared with 31 patients in the ET group(Kaplan-Meier analysis and log-rank test,P = 0.000).Rebleeding rates at any time point(6 wk,1 year and 2 year) in the TIPS group were lower than in the ET group(Bonferroni correction α' = α/3).Eight patients in the TIPS group and 16 in the ET group died with the cumulative survival rates of 80.6% and 64.9%(Kaplan-Meier analysis and log-rank test c2 = 4.864,P = 0.02),*** was no significant difference between the two groups with respect to 6-wk survival rates(Bonferroni correction α' = α/3).However,significant differences were observed between the two groups in the 1-year survival rates(92% and 79%) and the 2-year survival rates(89% and 64.9%)(Bonferroni correction α' = α/3).No significant differences were observed between the two treatment groups in the occurrence of hepatic encephalopathy(12 patients in TIPS group and 5 in ET gr

关键词： Transjugular intrahepatic portosystemic shunt Portal hypertension Rebleeding Endoscopicvariceal ligation Cyanoacrylate

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