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| 1 | Adsorption removal of thiocyanate from aqueous solution by calcined hydrotalcite显示文摘A hydrotalcite with Mg/Al molar ratio 2 was prepared by co-precipitation method and was characterized by XRD, TG/DTA, Zeta potential and BET surface area. The hydrotalcite was calcined at 500℃, with the dehydration from interlayer, the dehydroxilation from the brucite-like layer and the decomposition of carbonate successively, transformed into the mixed oxide type. The removal of thiocyanate from aqueous solution by using the original hydrotalcite and calcined hydrotalcite(HTC-500) was investigated. The results showed that the thiocyanate adsorption capacity of calcined hydrotalcite was much higher than that of the original form. Calcined hydrotalcite was particularly effective at removing thiocyanate, and that the effective range of pH for the thiocyanate removal are between 5.5—10.0. The experimental data of thiocyanate removal fit nicely with Langmuir isotherm, and the saturated adsorption uptake was 96.2 mg SCN-/g HTC-500. The adsorption of thiocyanate by calcined hydrotalcite follows first-order kinetics. And the intercalation to the structure recovery for calcined hydrotalcite. But the presence of additional anions could affect the adsorption behavior of thiocyanate. | LI Yu-jiang YANG Min ZHANG Xiao-jin WU Tao CAO Nan WEI Na BI Yan-jun WANG Jing | 2006 | Journal of Environmental Sciences2006，18，1： | 15 |
| 2 | A Survey on Information-Centric Networking: Rationales, Designs and Debates显示文摘The basic function of the Internet is to delivery data(what) to serve the needs of all applications. IP names the attachment points(where) to facilitate ubiquitous interconnectivity as the current way to deliver data. The fundamental mismatch between data delivery and naming attachment points leads to a lot of challenges, e.g., mapping from data name to IP address, handling dynamics of underlying topology, scaling up the data distribution, and securing communication, etc. Informationcentric networking(ICN) is proposed to shift the focus of communication paradigm from where to what, by making the named data the first-class citizen in the network, The basic consensus of ICN is to name the data independent from its container(space dimension) and session(time dimension), which breaks the limitation of point-to-point IP semantic. It scales up data distribution by utilizing available resources, and facilitates communication to fit diverse connectivity and heterogeneous networks. However, there are only a few consensuses on the detailed design of ICN, and quite a few different ICN architectures are proposed. This paper reveals the rationales of ICN from the perspective of the Internet evolution, surveys different design choices, and discusses on two debatable topics in ICN, i.e.,self-certifying versus hierarchical names, and edge versus pervasive caching. We hope this survey helps clarify some mis-understandings on ICN and achieve more consensuses. | JIANG Xiaoke BI Jun NAN Guoshun LI Zhaogeng | 2015 | China Communications2015，12，7： | 6 |
| 3 | Elective neck dissection or "watchful waiting": optimal management strategy for early stage NO tongue carcinoma using decision analysis techniques显示文摘背景尽管舌头癌症是头和颈的普通疾病,在选任的颈解剖并且“警惕等待”之间的颈治疗的选择与早舞台为病人仍然保持争论没有口头的舌头 carcinoma.Methods 根据头和颈癌症的当前的状态,一个决定分析模型被创造为早舌头 cancer.Expected 价值( EV )比较二治疗策略根据遇见了定义 criteria.Sensitivity | SONG Tao BI Nan GUI Lai PENG Zhe | 2008 | Chinese Medical Journal2008，，17： | 5 |
| 4 | IL-17A-dependent gut microbiota is essential for regulating diet-induced disorders in mice显示文摘The gut microbiota plays a key role in obesity and related metabolic disorders, and multiple factors including diet, host genotype, and age regulate it. Many studies have examined the contribution of extrinsic factors to the regulation of the gut microbiota, but the importance of the host genetic constitution cannot be ignored. Interleukin 17A(IL-17A), a pro-inflammatory cytokine, is important in the defense against infection and diseases. Here, we investigated the association among IL-17, a high-fat diet(HFD), and the gut microbiota. Mice deficient in IL-17A were resistant to diet-induced obesity and related diseases. Compared with the Ⅱ-17^(-/-)mice, wild-type(WT) mice challenged with HFD showed obvious weight fluctuations, such as those seen in type 2 diabetes, and hematological changes similar to those associated with metabolic syndrome. However, housing WT mice and Ⅱ-17a^(-/-)mice together significantly alleviated these symptoms in the WT mice. A metagenomic analysis of the mouse feces indicated that the microbial community compositions of these two groups differed before HFD feeding. The HFD mediated shifts in the gut microbial compositions, which were associated with the mouse phenotypes.We also identified potentially beneficial and harmful species present during this period, and drew networks of the most abundant species. A functional analysis indicated pathway changes in the WT and Ⅱ-17a^(-/-)mice when fed the HFD. Collectively, these data underscore the importance of the host factor IL-17 A in shaping and regulating the gut microbiota, which conversely, influences the host health. | Yujing Bi Chunxiao Li Lin Liu Jiyuan Zhou Zhengchao Li Huimin Deng Chunyan Wu Yanping Han Yajun Song Yafang Tan Xiaoyi Wang Zongmin Du Yujun Cui Yanfeng Yan Fachao Zhi Guangwei Liu Nan Qin Heping Zhang Ruifu Yang | 2017 | Science Bulletin2017，62，15： | 5 |
| 5 | Radiotherapy combined with nimotuzumab for elderly esophageal cancer patients:A phaseⅡclinical trial显示文摘Objective:To investigate the safety and efficacy of nimotuzumab combined with radiotherapy for elderly patients with non-resectable esophageal carcinoma(EC).Methods:Eligible patients were aged 70 years or older and had treatment-naive,histologically proven inoperable locally advanced EC.Enrolled patients received radiotherapy with a total dose of 50-60 Gy in 25-30 fractions,concurrent with weekly infusion of nimotuzumab.The primary end point was the rate of more than grade 3 toxicities.Results:From June 2011 to July 2016,46 patients with stageⅡ-IV EC with a median age of 76.5 years were enrolled.There were 10,28 and 8 patients with stageⅡ,III and IV disease,respectively.The common acute toxicities included esophagitis(grade 1-2,75.4%;grade 3,8.7%),pneumonitis(grade 1,4.3%;grade 2,6.5%;grade3,2.2%),leukopenia(grade 1-2,60.9%;grade 3-4,4.4%),gastrointestinal reaction(grade 1-2,17.3%;grade 3,2.2%),thrombocytopenia(grade 1-2,21.7%;grade 3,2.2%),and radiothermitis(grade 1-2,39.2%).The incidence of grade 3-4 adverse effects was 17.4%.No grade 5 toxicities were observed.Clinical complete response,partial response,stable disease,and progressive disease were observed in 1(2.2%),31(67.4%),12(26.1%),and 2(4.3%)patients,respectively.The median overall survival(OS)and progression-free survival(PFS)were 17 and 10 months,respectively.The 2-,3-,and 5-year OS and PFS rates were 30.4%,21.7%,19.6%,and 26.1%,19.6%,19.6%,respectively.Conclusions:Nimotuzumab combined with radiotherapy is a safe and effective therapy for elderly patients who are not surgical candidates.Further studies are warranted to confirm its therapeutic effects in elderly EC patients. | Xu Yang Yirui Zhai Nan Bi Tao Zhang Lei Deng Wenqing Wang Xin Wang Dongfu Chen Zongmei Zhou Luhua Wang Jun Liang | 2021 | Chinese Journal of Cancer Research2021，33，1： | 4 |
| 6 | Characteristics of soil organic carbon and total nitrogen under various grassland types along a transect in a mountain-basin system in Xinjiang, China显示文摘Soil organic carbon(SOC) and soil total nitrogen(STN) in arid regions are important components of global C and the N cycles, and their response to climate change will have important implications for both ecosystem processes and global climate feedbacks. Grassland ecosystems of Funyun County in the southern foot of the Altay Mountains are characterized by complex topography, suggesting large variability in the spatial distribution of SOC and STN. However, there has been little investigation of SOC and STN on grasslands in arid regions with a mountain-basin structure. Therefore, we investigated the characteristics of SOC and STN in different grassland types in a mountain-basin system at the southern foot of the Altai Mountains, north of the Junggar Basin in China, and explored their potential influencing factors and relationships with meteorological factors and soil properties. We found that the concentrations and storages of SOC and STN varied significantly with grassland type, and showed a decreasing trend along a decreasing elevation gradient in alpine meadow, mountain meadow, temperate typical steppe, temperate steppe desert, and temperate steppe desert. In addition, the SOC and STN concentrations decreased with depth, except in the temperate desert steppe. According to Pearson's correlation values and redundancy analysis, the mean annual precipitation, soil moisture content and soil available N concentration were significantly positively correlated with the SOC and STN concentrations. In contrast, the mean annual temperature, p H, and soil bulk density were significantly and negatively correlated with the SOC and STN concentrations. The mean annual precipitation and mean annual temperature were the primary factors related to the SOC and STN concentrations. The distributions of the SOC and STN concentrations were highly regulated by the elevation-induced differences in meteorological factors. Mean annual precipitation and mean annual temperature together explained 97.85% and 98.38% of the overall variations in the SOC and STN concentrations, respectively, at soil depth of 0–40 cm, with precipitation making the greatest contribution. Our results provide a basis for estimating and predicting SOC and STN concentrations in grasslands in arid regions with a mountain-basin structure. | BI Xu LI Bo NAN Bo FAN Yao FU Qi ZHANG Xinshi | 2018 | Journal of Arid Land2018，10，4： | 4 |
| 7 | A new derivative of triterpene with anti-melanoma B16 activity from Conyza canadensis显示文摘A new derivative of triterpene named Erigeronol 1 was isolated from the EtOH extract of the aerial part of Conyza canadensis together with 15 known compounds for the first time from this plant.The structure of Erigeronol 1 was elucidated as 3-O-(hydroxyacetyl) -23,28-dihydroxy-β-amyrin by hydrolysis and spectroscopic analysis.Erigeronol 1 showed potent cytotoxic activity with IC_(50) value of 7.77±0.47μg/mL against melanoma B16 determined by the 3-(4,5-dimethylthiazo-2-yl)-2,5-diphenyltetrazolium bromide(MTT) method. | Ming Ming Yan Ting You Li Da Qing Zhao Shuai Shao Sheng Nan Bi | 2010 | Chinese Chemical Letters2010，21，7： | 4 |
| 8 | Sparing lung tissue with virtual block method in VMAT planning for locally advanced non-small cell lung cancer显示文摘This study aimed to exploit a new virtual block method to spare normal lung tissue in VMAT planning for patients with locally advanced non-small cell lung cancer(LA-NSCLC).The previous method was used to manually restrict the angle of the beam passing through,which ignored the location and shape of large targets that varied between different slices and did not block the beamlets precisely.Unlike the previous method,this new virtual block method was used to block the beamlets when necessary by closing the multi-leaf collimator(MLC)at prerequisite angles.The algorithm for closing the MLC depended on the thickness of the beamlets passing through the lungs and avoided only the entrance radiation beamlet.Moreover,this block can be automatically contoured.A retrospective study was performed to compare the VMAT plans with and without the virtual block method for 17 LANSCLC patients,named the block plan(B-plan)/non-block plan(N-plan).All cases were selected in this study because of the large tumor size and unmet dose constraints of the lungs.In addition to the maximum dose constraint for the virtual block,B-plans adopted identical optimization parameters to N-plans for each patient.These two types of plans were compared in terms of dosimetric indices and plan scores.The results were statistically analyzed using the Wilcoxon nonparametric signed-rank test.B-plans have advantages in the following dosimetric metrics that have statistical significance(p<0.05):(1)lower V_(5)/V_(10)/D_(mean)/normal tissue complication probability(NTCP)of total lungs;(2)reductions in V_(5)/V_(10)for the contralateral lung;(3)decrease in Dmean/V_(40)of the heart;(4)decrease in esophagus V_(40);(5)reductions in Dmean,V_(5)/V_(10) of normal tissue.B-plans(82.51±7.07)achieved higher-quality scores than N-plans(80.74±7.22).The new virtual block spared the lungs as well as other normal structures in VMAT planning for LA-NSCLC.Thus,the block method may decrease the risk of radiation-related toxicity in patients. | Jia-Yun Chen Da-Quan Wang Xiao-Dong Zhang Qi Fu Xue-Na Yan Kuo Men Jian-Rong Dai Nan Bi | 2022 | Nuclear Science and Techniques2022，33，4： | 3 |
| 9 | Dog-transmitted Rabies in Beijing, China显示文摘Rabies remains a continuous threat to public health in Beijing.In this study,a total of 224 brain tissues were collected from suspected infected stray dogs within Beijing between January 2015 and December 2016.Among them,total of 67 samples were diagnosed positive for rabies.In the phylogenetic analysis,rabies in Beijing is currently a relatively independent public health issue originating from local rabid dogs apart from the imported cases from elsewhere in the country.Because vaccination of unregistered dogs against rabies is still neglected in Beijing and other regions of China,national and local authorities should play central roles in all related aspects,such as development of policies,engagement of stakeholders for public and professional education,entire vaccination process,and animal management. | ZHANG Jing Yuan ZHANG Bi ZHANG Shou Feng ZHANG Fei LI Nan LIU Ye HU Rong Liang | 2017 | Biomedical and Environmental Sciences2017，30，7： | 3 |
| 10 | Association between Coronary Atherosclerotic Plaque Composition and Cardiovascular Disease Risk显示文摘Objective The objective of this study is to determine whether coronary atherosclerotic plaque composition is associated with cardiovascular disease(CVD) risk in Chinese adults. Methods We performed a cross-sectional analysis in 549 subjects without previous diagnosis or clinical symptoms of CVD in a community cohort of middle-aged Chinese adults. The participants underwent coronary computed tomography(CT) angiography for the evaluation of the presence and composition of coronary plaques. CVD risk was evaluated by the Framingham risk score(FRS) and the 10-year atherosclerotic cardiovascular disease(ASCVD) risk score. Results Among the 549 participants, 267(48.6%) had no coronary plaques, 201(36.6%) had noncalcified coronary plaques, and 81(14.8%) had calcified or mixed coronary plaques. The measures of CVD risk including FRS and ASCVD risk score and the likelihood of having elevated FRS significantly increased across the groups of participants without coronary plaques, with noncalcified coronary plaques, and with calcified or mixed coronary plaques. However, only calcified or mixed coronary plaques were significantly associated with an elevated ASCVD risk score [odds ratio(OR) 2.41; 95% confidence interval(CI) 1.09-5.32] compared with no coronary plaques, whereas no significant association was found for noncalcified coronary plaques and elevated ASCVD risk score(OR 1.25; 95% CI 0.71-2.21) after multivariable adjustment. Conclusion Calcified or mixed coronary plaques might be more associated with an elevated likelihood of having CVD than noncalcified coronary plaques. | LI Lin WANG Long LIU Shan Shan ZHAO Zhi Yun LI Mian WANG Tian Ge XU Min LU Jie Li CHEN Yu Hong WANG Shuang Yuan DAI Meng HOU Ya Nan WU Xue Yan MA Li Na WANG Wei Qing XU Yu BI Yu Fang | 2019 | Biomedical and Environmental Sciences2019，32，2： | 3 |
| 11 | Attack Simulation Model and Channel Statistics in Underwater Acoustic Sensor Networks显示文摘In recent years,underwater acoustic wireless sensor networks have been used in many areas.There have been many field trials of acoustic propagation models and statistics for shallow water conditions.However,field trials are limited environmentally and,hence,not widely accepted.Simulations of the impulse response of a shallow underwater acoustic channel allows less expensive system tests that are reproducable.This paper presents a shallow water acoustic channel model based on the actual acoustic propagation characteristics with path attenuation,ambient noise,multiple paths,and Doppler effects.The second-order statistical characteristics of the simulation model are verified with the autocorrelations and crosscorrelations of the quadrature components and the complex envelopes of channel impulse responses.The channel model is implemented in Matlab with the results showing that the absorption coefficient and path losses are both dependent on the frequencies and propagation distances and that the path gain can be improved with Light of Sight (LOS) and short range acoustic propagation.Analysis of the channel impulse response and the frequency response that the zero-order Bessel function of first kind can be used to describe the correlation functions for the impulse response.The shallow underwater acoustic channel is time-varying and can not be modeled as a wide-sense stationary-uncorrelated scattering channel. | Nan Jing Weihong Bi Qing Yue | 2011 | Tsinghua Science and Technology2011，16，6： | 2 |
| 12 | Inverted U-Shaped Associations between Glycemic Indices and Serum Uric Acid Levels in the General Chinese Population:Findings from the China Cardiometabolic Disease and Cancer Cohort(4C)Study显示文摘Objective The relationship between serum uric acid(SUA)levels and glycemic indices,including plasma glucose(FPG),2-hour postload glucose(2 h-PG),and glycated hemoglobin(HbA1 c),remains inconclusive.We aimed to explore the associations between glycemic indices and SUA levels in the general Chinese population.Methods The current study was a cross-sectional analysis using the first follow-up survey data from The China Cardiometabolic Disease and Cancer Cohort Study.A total of 105,922 community-dwelling adults aged≥40 years underwent the oral glucose tolerance test and uric acid assessment.The nonlinear relationships between glycemic indices and SUA levels were explored using generalized additive models.Results A total of 30,941 men and 62,361 women were eligible for the current analysis.Generalized additive models verified the inverted U-shaped association between glycemic indices and SUA levels,but with different inflection points in men and women.The thresholds for FPG,2 h-PG,and HbA1 c for men and women were 6.5/8.0 mmol/L,11.0/14.0 mmol/L,and 6.1/6.5,respectively(SUA levels increased with increasing glycemic indices before the inflection points and then eventually decreased with further increases in the glycemic indices).Conclusion An inverted U-shaped association was observed between major glycemic indices and uric acid levels in both sexes,while the inflection points were reached earlier in men than in women. | ZHU Yuan Yue ZHENG Rui Zhi WANG Gui Xia CHEN Li SHI Li Xin SU Qing XU Min XU Yu CHEN Yu Hong YU Xue Feng YAN Li WANG Tian Ge ZHAO Zhi Yun QIN Gui Jun WAN Qin CHEN Gang GAO Zheng Nan SHEN Fei Xia LUO Zuo Jie QIN Ying Fen HUO Ya Nan LI Qiang YE Zhen ZHANG Yin Fei LIU Chao WANG You Min WU Sheng Li YANG Tao DENG Hua Cong ZHAO Jia Jun CHEN Lu Lu MU Yi Ming TANG Xu Lei HU Ru Ying WANG Wei Qing NING Guang LI Mian LU Jie Li BI Yu Fang | 2021 | Biomedical and Environmental Sciences2021，34，1： | 2 |
| 13 | Performance evaluation of deep learning-based post-processing and diagnostic reporting system for coronary CT angiography: a clinical comparative study显示文摘To the Editor:Coronary computed tomography angiography(CCTA)has been increasingly,widely performed for diagnosing coronary artery,disease,lAnatomical diagnosis,that is,stenosis grading,is stillthe main diagnostic index provided'by most CCTA tests.Post-processing and interpretation of stenosis are 2 essential'steps that need to be performed bycardiovascular imaging professionals from scan completion to diagnosis conclusion,which is repetitive and time-consuming,taking an average of 30 minutes each case in China and becoming the bottleneck and gradually creating an imbalance between supply and demand.In ine with the rapid development of artificial intelligence(Al)technology in recent years,it has been expected to solve these specific problems.We developed an AI system for automating post-processing and diagnostic reporting of CCTA data using deep learning algorithms to establishanew1-clickworkflowforeverydayuse,namely,CCTA-AI(Figure 1).To further assess its capabilities,this study intends to answer 2 following questions:To what extent can it improve the efficiency of post-processing?To what extent can CCTA-AI detect and calculate coronary artery stenosis due to each atherosclerotic plaque? | Nan Luo Yi He Jitao Fan Ning Guo Guang Yang Yuanyuan Kong Jianyong Wei Tao Bi Jie Zhou Jiaxin Cao Xianjun Han Fang Li Shiyu Zhang Rujing Sun Zhaozhao Wang Tian Ma Lixue Xu Hui Chen Hongwei Li Zhenchang Wang Zhenghan Yang | 2022 | Chinese Medical Journal2022，135，19： | 2 |
| 14 | SLC1A1-mediated cellular and mitochondrial influx of R-2-hydroxyglutarate in vascular endothelial cells promotes tumor angiogenesis in IDH1-mutant solid tumors显示文摘Muta nt isocitrate dehydrog en ase 1(mlDH1)drives tumorigenesis via produci ng on cometabolite R-2-hydroxyglutarate(R-2-HG)across various tumor types.However,mlDHl in hibitors appear only effective in hematological tumors.The therapeutic ben efit in solid tumors remains elusive,likely due to the complex tumor microenvironment.In this study,we discover that R-2-HG produced by IDH1-mutant tumor cells is preferentially imported into vascular endothelial cells and remodels mitochondrial respiration to promote tumor angiogenesis,conferring a therapeutic vulnerability in IDH1-mutant solid tumors.Mechanistically,SLC1 Alz a Na'-depe ndent glutamate tran sporter that is prefere ntially expressed in en dothelial cells,facilitates the in flux of R-2-HG from the tumor microenvironment into the endothelial cells as well as the intracellular trafficking of R-2-HG from cytoplasm to mitochondria.R-2-HG hijacks SLC1A1 to promote mitochondrial Na^(+)/Ca^(2+)exchange,which activates the mitochondrial respiratory chain and fuels vascular en dothelial cell migratio n in tumor an giogenesis.SLC1A1 deficiency in mice abolishes mlDHl-promoted tumor an giogenesis as well as the therapeutic benefit of mlDHl in hibitor in solid tumors.Moreover,we report that HH2301,a newly discovered mlDHl inhibitor,shows promising efficacy in treating IDH1-mutant cholangiocarcinoma in preclinical models.Together,we identify a new role of SLC1A1 as a gatekeeper of R-2-HG-mediated crosstalk between IDH1-mutant tumor cells and vascular en dothelial cells,and dem on strate the therapeutic potential of mlDHl in hibitors in treating IDH1-muta nt solid tumors via disrupting R-2-HG-promoted tumor angiogenesis. | Xiaomin Wang Ziqi Chen Jun Xu Shuai Tang Nan An Lei Jiang Yixiang Zhang Shaoying Zhang Qingli Zhang Yanyan Shen Shijie Chen Xiaojing Lan Ting Wang Linhui Zhai Siyuwei Cao Siqi Guo Yingluo Liu Aiwei Bi Yuehong Chen Xiameng Gai Yichen Duan Ying Zheng Yixian Fu Yize Li Liang Yuan Linjiang Tong Kun Mo Mingcheng Wang Shu-Hai Lin Minjia Tan Cheng Luo Yi Chen Jia Liu Qiansen Zhang Leping Li Min Huang | 2022 | Cell Research2022，32，7： | 2 |
| 15 | A New Prediction Model of Steady State Stress Based on the In- fluence of the Chemical Composition for Nickel-Base Superal- loys 显示文摘 | BI Zhong -nan ZHANG Mai- cang DONG Jian- xin | 2010 | Materials Science and Engineering2010，527，： | 1 |
| 16 | Image de- hazing method based on dark channel prior显示文摘 | Nan Dong Bi Du-Yan Xu Yue-Lei etal | 2013 | Jour- nal of Central South University (Science and Tech- nology)2013，44，10： | 1 |
| 17 | miR-21 targets the tumor suppressor RhoB and regulates proliferation, invasion and apoptosis in colorectal cancer cells显示文摘 | Ming Liu Qinlin Tang Meng Qiu Nan Lang Mingxing Li Yi Zheng Feng Bi | 2011 | FEBS Letters2011，，： | 1 |
| 18 | Prevalence and molecular characterization of Pentatrichomonas hominis in Siberian tigers(Panthera tigris altaica)in northeast China显示文摘INTRODUCTION Pentatrichomonas hominis,an anaerobic flagellated protozoan that inhabits the large intestines of mammals and belongs to the Trichomonadidae family(Wenrich 1944;Kim et al.2010;Li et al.2014b,2016,2018a,2020;Maritz et al.2014;Zhang et al.2019),is mainly transmitted through the fecal-oral route.It was originally presumed to be a commensal protozoan(Tolbert et al.2012)but was found to cause gastrointestinal symptoms. | Hongbo ZHANG Nan ZHANG Pengtao GONG Shuqin CHENG Xiaocen WANG Xin LI Zhijun HOU Chang LIU Tianqi BI Bobo WANG Yidan CHENG Jianhua LI Xichen ZHANG | 2022 | Integrative Zoology2022，17，4： | 1 |
| 19 | A deeper exploration of the relation between sulfonation degree and retanning performance of aromatic syntans显示文摘It is well‑known that the sulfonation degree(DS)of aromatic syntan is an important factor affecting its retanning performances.But the quantitative relation between DS and syntan property and the influencing mechanism of DS on syntan property are not clarified.In this work,five phenolic formaldehyde syntans(PFSs)with the same polym‑erization degree but varying DS were prepared to investigate the effect of DS on the properties of syntan and crust leather.It was found that the absolute value of zeta potential and the particle size of PFS decreased with increasing DS in aqueous solution.Molecular dynamic simulation results proved that the DS of PFS was a major contributor to electrostatic interaction and hydrogen bonding in the PFS–water system and greatly affected the aggregation and dispersion of PFS in aqueous solution.The PFS with a low DS was prone to aggregate to large particles in aqueous solution because of low intermolecular electrostatic repulsion and less hydrogen bonds and therefore can be used to increase the thickness and tightness of leather.The PFS with a high DS presented a small particle size with more anionic groups in aqueous solution,thereby sharply decreasing the positive charge of leather surface and facilitat‑ing the penetration of the post‑tanning agents into the leather.These results might be scientifically valid for rational molecular design of syntans and more productive use of syntans in leather making. | Qingyong Sun Yunhang Zeng Ya‑nan Wang Yue Yu Bi Shi | 2021 | Journal of Leather Science and Engineering2021，3，1： | 1 |
| 20 | Effect of water droplet in solvent sublation显示文摘在水泡和水微滴附近的水相层是在液层促集分离的二个另外的过程。在传质的动态过程,他们总是被忽视,但是他们在热动平衡的调查是很重要的。在这篇论文,在液层促集分离的水微滴的效果详细被讨论,并且溶剂 subaltion 的以前的数学模型被改进。Matlab 6.5 被用来模仿在以前的假设之间的水微滴,和比较的过程,在这篇论文的改进显示出优势,特别在热动平衡的调查。而且,到由也证明改进数学模型的液层促集分离的 n-octanol 的从水相的配位化合物 dithizone 公司(II ) 的分离和集中是合理的。 | Peng Yu Bi Hui Ru Dong Nan Nan Wang | 2008 | Chinese Chemical Letters2008，19，5： | 1 |
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