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Predictive value of indirect bilirubin before neoadjuvant chemoradiotherapy in evaluating prognosis of local advanced rectal cancer patients

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World Journal of Gastrointestinal Oncology 2022年第11期14卷 2224-2237页

作者： Shuo-Feng Li ran Wei Guan-hua Yu Zheng jiang Department of Colorectal Surgery National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100021China

BACKGROUND Many biomarkers have predictive value for overall survival(OS)and disease-free survival(DFS)in tumor ***,the role of indirect bilirubin(IBIL)in local advanced rectal cancer(LARC)patients treated with neoadjuvant chemoradiotherapy(nCRT)has not been *** To explore the predictive value of IBIL before nCRT(pre-IBIL)for the OS and DFS of LARC patients treated with *** A total of 324 LARC patients undergoing nCRT with total mesorectal excision(TME)were *** clinical features and postoperative pathological characteristics were *** regression analysis was performed,and a Cox-based nomogram was developed to predict OS and *** also assessed the predictive performance of the nomogram with calibration plots and receiver operating characteristic(ROC)*** Among 324 patients,the median pre-IBIL was 6.2μmol/L(interquartile range:4.6μmol/L-8.4μmol/L).In the Cox multivariate regression analysis,we found that pre-IBIL,smoking history,tumor regression grade(TRG),vascular invasion,and carbohydrate antigen 19-9 before nCRT(pre-CA19-9)were predictors of ***,pre-IBIL,body mass index(BMI),nCRT with surgery interval,TRG,and vascular invasion were predictors of *** nomograms were developed to predict 5-year OS and 5-year DFS with area under the ROC curve values of 0.7518 and 0.7355,*** statistical performance on internal validation was shown by calibration plots and ROC *** This study demonstrated that pre-IBIL was an independent prognostic factor for OS and DFS in LARC patients treated with nCRT followed by *** incorporating pre-IBIL,BMI,smoking history,nCRT with surgery interval,TRG,vascular invasion,and pre-CA19-9 could be helpful to predict OS and DFS.

关键词： Indirect bilirubin Local advanced rectal cancer Neoadjuvant chemoradiotherapy Prognostic factor Overall survival Disease-free survival

Hydrogen Peroxide Sensor Based on Horseradish Peroxidase Combined with CaCO_3 Microspheres and Gold Nanoparticles

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Chemical Research in Chinese Universities 2011年第5期27卷 875-879页

作者： ZHENG LI jiang Feng-hua MA Guang-ran ZhuaNG Qian-fen LI Feng Marine Ecology Research Center First Institute of Oceanography State Oceanic Administration Qingdao 266061 P. R. China Shandong Provincial Key Laboratory of Biochemical Analysis College of Chemistry and Molecular Engineering Qingdao University of Science and Technology Qingdao 266042 t~ R. China

Direct electrochemistry and electrocatalysis of horseradish peroxidase（HRP） were achieved by entrapping the enzyme between CaCO3 microspheres and gold nanoparticles through forming sandwich configuration （CaCO3-HRP-AuNPs）. Polyanion, poly（styrene sulfonate）（PSS）, was hybrid with CaCO3 microspheres to increase the surface negative charges for binding with HRP through electrostatic interaction. After the bioconjugate CaCO3 PSS-HRP was entrapped in chitosan based sol-gel（CS-GPTMS） film, HRP was encapsulated by in situ formation of an outer layer of AuNPs through electrochemical reduction of HAuCl4. The composite film containing AuNPs, CaCO3-PSS-HRP bioconjugates and CS-GPTMS can provide favorable microenvironment for HRP to perform direct electron transfer at glassy carbon electrode（GCE）. HRP retained its bioelectrocatalytic activity and lead to sensitive and fast amperometric response for the determination of H2O2. H2O2 could be detected in a very wide linear range from 5.0×10-6 mol/L to 7.1×10-2 mol/L. The sandwich configuration of CaCO3-biomolecules-AuNPs could serve as a versatile platform for enzyme immobilization and biosensing.

关键词： Direct electrochemistry Horseradish peroxidase(HRP) CaCO3 microsphere Chitosan based sol-gel

PREPARATION AND MAGNETIC PROPERTIES OF POLYMERIC COMPLEXES CONTAINING 1,10-PHENANTHROLINE

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Chinese Journal of Polymer Science 2006年第1期24卷 81-86页

作者： hua-jiang jiang Wei-lin Sun Ren-hua Zheng Departrnent of Chemistry and Materials Taizhou Colledge Taizhou 317000 China Department of Polyrner Science and Engineering Zhejiang University Hangzhou 310027 China

A series of polymeric complexes were prepared from Fe^2＋, Co^2＋ or Ni^2＋ and poly（Schiff base）（DAPcIPA）, which was obtained by polycondensation of 5,6-diamino-1,10-phenanthroline （DAP） with isophthalaldehyde （IPA）. The structures of the polymer and the polymeric complexes were characterized by IR, 1^H-NMR and elemental analysis. The magnetic behavior of these complexes was measured as a function of magnetic field strength （0-3.98 ~ 106 A/m） at 5 K and as a function of temperature （5-300 K） at a magnetic field strength of 2.39 × 10^6 A/re. Experimental results show that DAPcIPA-Ni^2＋, DAPcIPA-Co^2＋ are soft ferromagnets while DAPcIPA-Fe^2＋ exhibits features of an antiferromagnet.

关键词： Synthesis Polymer containing phenanthroline Polymeric complexes Organic soft ferromagnets.

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1-萘酚的太赫兹光谱实验及理论研究

原子与分子物理学报 2025年第4期42卷 33-39页

作者：王利民朱立江孙延华国家能源集团煤焦化有限责任公司乌海016000

1-萘酚是煤化工产物萘的合成产物,对环境和人体健康有危害.采用太赫兹时域光谱(THz-TDS)技术,获得了1-萘酚在0.5~4.0 THz范围内的实测太赫兹吸收谱,同时运用密度泛函理论(DFT)平面波赝势模型对1-萘酚晶胞模型进行理论光谱计算,探讨了平... 详细信息

1-萘酚是煤化工产物萘的合成产物,对环境和人体健康有危害.采用太赫兹时域光谱(THz-TDS)技术,获得了1-萘酚在0.5~4.0 THz范围内的实测太赫兹吸收谱,同时运用密度泛函理论(DFT)平面波赝势模型对1-萘酚晶胞模型进行理论光谱计算,探讨了平面波截断能在800~1600 eV范围内对理论光谱的影响,并对吸收峰的振动模式进行了理论归属.实验结果表明,1-萘酚在0.5~4.0 THz范围内有1.14 THz、1.60 THz、2.16 THz、2.81 THz、3.56 THz共5个吸收峰,平面波截断能1400 eV下得到的理论吸收谱与实测吸收谱在吸收峰个数、峰位、归一化峰强度上均有较好的一致性,5个吸收峰的振动模式均是以两元环为平面的受氢键束缚的面外摇摆振动或者面内扭转振动引起的.这为太赫兹技术对1-萘酚的识别提供了实验和理论基础,具有一定的理论意义和实际应用价值.

关键词：太赫兹密度泛函理论(DFT) 理论光谱 1-萘酚

Filling up complex spectral regions through non-Hermitian disordered chains

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Chinese Physics B 2022年第5期31卷 1-9页

作者： Hui jiang Ching hua Lee Department of Physics National University of SingaporeSingapore 117551Republic of Singapore

Eigenspectra that fill regions in the complex plane have been intriguing to many,inspiring research from random matrix theory to esoteric semi-infinite bounded non-Hermitian *** this work,we propose a simple and robust ansatz for constructing models whose eigenspectra fill up generic prescribed *** approach utilizes specially designed non-Hermitian random couplings that allow the co-existence of eigenstates with a continuum of localization lengths,mathematically emulating the effects of semi-infinite *** some of these couplings are necessarily long-ranged,they are still far more local than what is possible with known random matrix *** ansatz can be feasibly implemented in physical platforms such as classical and quantum circuits,and harbors very high tolerance to imperfections due to its stochastic nature.

关键词： non-Hermitian skin effect disordered chain disorder localization non-Hermitian spectra

Elastic Properties and Stacking Fault Energies of Borides, Carbides and Nitrides from First-Principles Calculations

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Acta Metallurgica Sinica(English Letters) 2019年第9期32卷 1099-1110页

作者： Yong Zhang Zi-ran Liu Ding-Wang Yuan Qin Shao jiang-hua Chen Cui-Lan Wu Zao-Li Zhang Center for High-Resolution Electron Microscopy College of Materials Science and EngineeringHunan UniversityChangsha 410082China Department of Physics Key Laboratory for Low-Dimensional Structures and Quantum Manipulation(Ministry of Education)Hunan Normal UniversityChangsha 410086China Erich Schmid Institute of Materials Science Austrian Academy of SciencesJahnstraBe 128700 LeobenAustria

Owing to the excellent elastic properties and chemical stability,binary metal or light element borides,carbides and nitrides have been extensively applied as hard and low-compressible *** are searching for harder materials all the ***,the successful fabrication of nano-twinned cubic BN(Tian et *** 493:385–388,2013)and diamond(huang et *** 510:250–253,2014)exhibiting superior properties than their twin-free counterparts allows an efficient way to be *** this point of view,the borides,carbides and nitrides may be stronger by introducing twins,whose formation tendency can be measured using stacking fault energies(SFEs).The lower the SFEs,the easier the formation of *** the present study,by means of first-principles calculations,we first calculated the fundamental elastic constants of forty-two borides,seventeen carbides and thirty-one nitrides,and their moduli,elastic anisotropy factors and bonding characters were accordingly ***,the SFEs of the{111}glide system of twenty-seven compounds with the space group F43 m or Fm3m were *** on the obtained elastic properties and SFEs,we find that(1)light element compounds usually exhibit superior elastic properties over the metal borides,carbides or nitrides;(2)the 5 d transitionmetal compounds(ReB2,WB,OsC,RuC,WC,OsN2,TaN and WN)possess comparable bulk modulus(B)with that of cBN(B=363 GPa);(3)twins may form in ZrB,HfN,PtN,VN and ZrN,since their SFEs are lower or slightly higher than that of diamond(SFE=277 mJ/m^2).Our work can be used as a valuable database to compare these compounds.

关键词： Inorganic compounds Elastic properties Stacking fault energies First-principles calculations

Development of a roof bolter drilling control process to reduce the generation of respirable dust

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International Journal of Coal Science & Technology 2021年第2期8卷 199-204页

作者： hua jiang Yi Luo Centers for Disease Control and Prevention National Institute for Occupational Safety and HealthPittsburghPAUSA Department of Mining Engineering West Virginia UniversityMorgantownWVUSA

The drilling operation in the roof bolting process,especially in hard rock,generates excessive respirable coal and quartz dusts,which could expose the roof bolting operator to continued health *** research has shown that the amount of respirable dust produced is dependent on the main drilling parameters,specifically the drilling rotational and penetration *** this paper,a roof bolter drilling control process was proposed to reduce the generation of respirable *** on the analysis of laboratory drilling test results,a rational drilling control process(adjusting rotational and penetration rates)to achieve the optimal drilling parameter for different rock types was *** this process,the ratio between specific energy and rock uniaxial compressive strength was used as the index to determine the optimal operation *** recommended drilling operation range for the rock type used in the experiment was provided,and the reduction in respirable dust generation was *** following this control process,the drilling efficiency can be monitored in real time,so the system can stay in a relatively high-energy efficiency with less respirable dust production from the drilling *** algorithm is targeted to be incorporated into the current roof bolter drilling control system for drilling automation so that a safe and productive drilling operation can be conducted in a healthy working environment.

关键词： Roof bolter Drilling control Respirable dust Specific energy

A new three-dimensional Hoek-Brown strength criterion

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Acta Mechanica Sinica 2012年第2期28卷 393-406页

作者： hua jiang Yong-Li Xie Key Laboratory for Bridgeand Tunnel of Shaanxi Province Chang'an University710064 Xi'anChina

The Hoek-Brown （HB） strength criterion has been widely applied to the estimation of strength of intact rock and rock mass, while evolving ever since. However, negligence of the effect of the intermediate principal stress still remains in the criterion＇s latest version. At the same time, several three-dimensional （3D） HB strength, which can takes into account the influence of the intermediate principal stress, have already been proposed, among which the 3D HB criterion proposed by Zhang and Zhu seems to be the most reasonable one. However, the Zhang 3D HB criterion may have problems with some stress path close to triaxial extension state because of the non-convexity characteristic of its failure surface. In this paper, a new 3D HB strength criterion is presented based on a generalized form of the HB criterion, which also considers the effect of the intermediate principal stress and inherits all the merits of the original version of the HB criterion. In addition, this new criterion can remedy to some extent the shortcomings observed in the Zhang 3D HB criterion. Polyaxial tests for five different rocks from pub- lished literatures are used for evaluating this new criterion and comparing it with the Zhang 3D HB criterion. The re- sults show that this new criterion may over-predict or under- predict the polyaxial strength of rocks but the errors are rela- tively small, and similar results are also found for the Zhang 3D HB criterion, which one is better depends on the type of the rock under estimation.

关键词： Hoek-Brown criterion Rock strength Merid-ian plane Octahedral plane

A New Solution to Intrusion Detection Systems Based on Improved Federated-Learning Chain

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Computers, Materials & Continua 2024年第6期79卷 4491-4512页

作者： Chunhui Li hua jiang School of Computer and Electronic Information Guangxi UniversityNanning530000China Cyber Security and Information Center Guangxi UniversityNanning530000China

In the context of enterprise systems,intrusion detection(ID)emerges as a critical element driving the digital transformation of *** systems spanning various sectors of enterprises geographically dispersed,the necessity for seamless information exchange has surged *** existing cross-domain solutions are challenged by such issues as insufficient security,high communication overhead,and a lack of effective update mechanisms,rendering them less feasible for prolonged application on resource-limited *** study proposes a new cross-domain collaboration scheme based on federated chains to streamline the server-side *** this framework,individual nodes solely engage in training local data and subsequently amalgamate the final model employing a federated learning algorithm to uphold enterprise systems with efficiency and *** curtail the resource utilization of blockchains and deter malicious nodes,a node administration module predicated on the workload paradigm is introduced,enabling the release of surplus resources in response to variations in a node’s contribution *** encountering an intrusion,the system triggers an alert and logs the characteristics of the breach,facilitating a comprehensive global update across all nodes for collective *** results across multiple scenarios have verified the security and effectiveness of the proposed solution,with no loss of its recognition accuracy.

关键词： Cross-domain collaboration blockchain federated learning contribution value node management release slack resources