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Basical characteristics of fluid geologic process of interlayer oxidation zone sandstone-typeuranium deposit

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Science China Earth Sciences 2007年第Z2期50卷 185-194页

作者： WU bolin LIU ChiYang wang JianQiang State Key Laboratory of Continental Dynamics(Northwest University) Xi'an 710069 China State Key Laboratory of Continental Dynamics(Northwest University) Xi'an 710069 China State Key Laboratory of Continental Dynamics(Northwest University) Xi'an 710069 China

This paper reveals the physicochemical properties such as component, formulation, genesis, tem- perature, pH, Eh, salinity and pressure of all main alteration fluid of interlayer oxidation zone sand- stone-type uranium deposits after studying the geologic process and geochemistry of internal typical sandstone-type uranium deposits such as Shihongtan deposit in the Turpan-Hami basin, 512 deposit in the Yili basin, Dongsheng deposit in the Ordos basin. The composition of fluid can be divided into two parts based on the analysis of inclusion: one can be affirmed as atmospheric water with ordinary temperature epigenesist according to the character of hydrogen and oxygen isotope of inclusion, the other is natural gas containing gaseous hydrocarbon like CH4, and CO2 as well as a little H2S, CO, H2, N2 and so on, it always contains a small quantity of hydrocarbon liquid in petroliferous basins. The fluid property of oxidation alteration zone is always oxidation alkaline, and neutrality or weak acid-weak alkaline and reducibility during the metallizing process, but at secondary reduction or deoxidization zone it becomes strong reduction alkaline. Oxygenic groundwater in the fluid is the activate and mig- ratory medium of uranium element, but the gaseous hydrocarbon like CH4 as well as H2, H2S, CO from natural gas is the important sedimentary reducer of uranium mineral; the transformation of pH,Eh in fluid environment is the main reason for the formation of uranium metallization.

关键词： fluid, interlayer oxidation zone, uranium deposit, inclusion, isotope

Quantum Attacks on Type-3 Generalized Feistel Scheme and Unbalanced Feistel Scheme with Expanding Functions

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Chinese Journal of Electronics 2023年第2期32卷 209-216页

作者： ZHANG Zhongya WU Wenling SUI Han wang bolin Trusted Computing and Information Assurance Laboratory Institute of Software Chinese Academy of Sciences University of Chinese Academy of Sciences Luoyang Normal University State Key Laboratory of Cryptology

Quantum algorithms are raising concerns in the field of cryptography all over the world. A growing number of symmetric cryptography algorithms have been attacked in the quantum setting. Type-3 generalized Feistel scheme(GFS) and unbalanced Feistel scheme with expanding functions(UFS-E) are common symmetric cryptography schemes, which are often used in cryptographic analysis and design. We propose quantum distinguishing attacks on Type-3 GFS and UFS-E in the quantum chosen plaintext attack setting. The results of key recovery are better than those based on exhaustive search in the quantum setting.

关键词： Quantum algorithm Cryptography

Stabilizing supported gold catalysts in acetylene hydrochlorination by constructing an acetylene–deficient reaction phase

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Green Energy & Environment 2021年第1期6卷 9-14页

作者： bolin wang Yuxue Yue Saisai wang Shujuan Shao Zhi Chen Xianhua Fang Xiangxue Pang Zhiyan Pan Jia Zhao Xiaonian Li Industrial Catalysis Institute of Zhejiang University of Technology Hangzhou310014China Department of Environmental Engineering Zhejiang University of TechnologyHangzhou310014China

In the process of acetylene hydrochlorination,the rapid deactivation of supported gold(Au)catalysts by acetylene is still a huge ***,we provide an innovative strategy for constructing an acetylene–deficient reaction phase on the active site by coating an ionic liquid film on the Au(H2O)/C *** reactant ratio of C2H2 to HCl in this acetylene–deficient reaction phase is 1:132,in contrast to the 1:1 M ratio in the gas phase,thus boosting the catalytic stability of Au(H2O)/C *** kinetic and theoretical analysis showed that the reduction of cationic gold by C2H2 and the generation of carbon deposition can be inhibited in this constructed reaction phase during *** current work not only broadens the scope of supported Au catalysts in acetylene hydrochlorination,but also verifies the perspective of the tunability of stoichiometric balance,which can be used in other catalytic applications.

关键词： Supported Au catalysts Acetylene-deficient Reaction phase Acetylene hydrochlorination

Electron-deficient Cu site catalyzed acetylene hydrochlorination

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Green Energy & Environment 2023年第4期8卷 1128-1140页

作者： bolin wang Chunxiao Jin Shujuan Shao Yuxue Yue Yuteng Zhang Saisai wang Renqin Chang Haifeng Zhang Jia Zhao Xiaonian Li School of Chemical Engineering Northeast Electric Power UniversityJilin132012China Industrial Catalysis Institute of Zhejiang University of Technology Hangzhou310014China Research Center of Analysis Measurement Zhejiang University of TechnologyHangzhou310014China

Rational design of catalytic sites to activate the C≡C bond is of paramount importance to advance acetylene hydrochlorination. Herein, Cu sites with electron-rich and electron-deficient states were constructed by controlling the impregnation solutions. The π electrons flowing from acetylene to Cu site are facilitated over the electron-deficient Cu sites, achieving high activation of C≡C bond. The contradiction between the increased activation of acetylene required for enhanced catalytic activity and the resistance of Cu site to reduction by acetylene required for maintaining catalytic stability can be balanced by establishing strong interactions of Cu site with pyrrolic-N species. The catalytic activity displays a volcano shape scaling relationship as a function of Cu particle size. Tribasic copper chloride is concomitantly generated with the construction of electron-deficient Cu sites. The H–Cl bond of HCl can be activated over the tribasic copper chloride, accelerating the surface reaction of vinyl chloride production. This strategy of inducing electron deficiency provides new insight into the rational design of catalysts for the synthesis of vinyl chloride with a high catalytic performance.

关键词： C≡C bond Acetylene hydrochlorination Cu sites Tribasic copper chloride Electron-deficient

Highly efficient catalyst for 1,1,2-trichloroethane dehydrochlorination via BN_(3) frustrated Lewis acid-base pairs

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Nano Research 2024年第6期17卷 4773-4781页

作者： Yuxue Yue Fangmin Zuo bolin wang Xiaoling Xian Jun Tang Haifeng Zhang Zilong Zhang Qingping Ke Wei Chen School of Chemical Engineering Northeast Electric Power UniversityJilin 132012China Industrial Catalysis Institute of Zhejiang University of Technology Hangzhou 310014China Key Laboratory of Carbon Materials of Zhejiang Province College of Chemistry and Materials EngineeringWenzhou UniversityWenzhou 325035China College of Chemistry and Chemical Engineering Anhui University of TechnologyMaanshan 243002China

In this study,a novel non-metallic carbon-based catalyst co-doped with boron and nitrogen(B,N)was successfully *** precisely controlling the carbonization temperature of a binary mixed ionic liquid,we selectively modified the doping site structure,ultimately constructing a B,N co-doped frustrated Lewis acid-base pair *** catalyst exhibited remarkable catalytic activity,selectivity,and stability in the dehydrochlorination reaction of 1,1,2-trichloroethane(TCE).Detailed characterization and theoretical calculations revealed that the primary active center of this catalyst was the BN_(3)*** to conventional graphitic N structures,the BN_(3)structure had a higher p-band center,ensuring superior adsorption and activation capabilities for TCE during the *** the BN_(3)site,three negatively charged nitrogen atoms acted as Lewis bases,while positively charged boron atoms acted as Lewis *** synergistic interaction facilitated the specific dissociation of chlorine and hydrogen atoms from TCE,significantly enhancing the 1,1-dichloroethene *** this research,we not only explored the active site structure and catalytic mechanism of B,N co-doped catalysts in depth but also provided an efficient,selective,and stable catalyst for the dehydrochlorination of TCE,contributing significantly to the development of non-metallic catalysts.

关键词： B N co-doped sites dehydrochlorination frustrated Lewis acid-base pairs catalytic mechanism

Few-shot font style transfer with multiple style encoders

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Science China(Information Sciences) 2022年第6期65卷 83-84页

作者： Kejun ZHANG Rui ZHANG Yonglin WU Yifei LI Yonggen LING bolin wang Lingyun SUN Yingming LI State Key Lab of CAD&CG Zhejiang University School of Software Technology Zhejiang University Robotics X Tencent College of Information Science & Electronic Engineering Zhejiang University

Dear editor,From the sketch to an encapsulated font, text font design is a labor-intensive and time-consuming process that relies heavily on the expertise of designers and usually takes months,even years, for a professional institution. This scenario is particularly prominent for glyph-rich scripts, such as Chinese, where each character is composed of varying numbers of highly complex structured components.

关键词： Font Generation Image-to-Image Translation GANs Multi-task Learning Font Fusion Style Transfer

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随机环境下电力系统谐波分析算法

电力系统自动化 2008年第3期32卷 22-25页

作者：王柏林河海大学电气工程学院江苏省南京市210098

离散傅里叶变换(DFT)是电力系统谐波分析常用的算法。研究随机环境下DFT算法在同步采样和非同步采样2种情况下的统计特性,DFT算法包括普通DFT算法和加窗DFT算法,统计特性包括均值、方差和相关性等。导出了用加窗DFT算法实现谐波幅值和... 详细信息

离散傅里叶变换(DFT)是电力系统谐波分析常用的算法。研究随机环境下DFT算法在同步采样和非同步采样2种情况下的统计特性,DFT算法包括普通DFT算法和加窗DFT算法,统计特性包括均值、方差和相关性等。导出了用加窗DFT算法实现谐波幅值和相位无偏估计的条件,并由此提出了一种新的时变加权DFT算法。基于MATLAB软件的仿真结果证实了结论的正确性。

关键词：谐波分析加窗离散傅里叶变换统计特性时变加权离散傅里叶变换

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拉萨藏漂的自我表达与地方意义解读

地理学报 2021年第8期76卷 2048-2066页

作者：白凯王博林陕西师范大学地理科学与旅游学院西安710119 陕西省旅游信息化工程实验室西安710119

藏漂是利用特殊地方对抗现代性负面影响的典型群体,其漂泊藏地的生命历程为研究自我与地方的互构机制提供了鲜活案例。基于半结构化访谈和实地观察收集的研究资料,本研究从历时性的微观角度入手,分析了不同时空条件下,藏漂自我表达和地... 详细信息

藏漂是利用特殊地方对抗现代性负面影响的典型群体,其漂泊藏地的生命历程为研究自我与地方的互构机制提供了鲜活案例。基于半结构化访谈和实地观察收集的研究资料,本研究从历时性的微观角度入手,分析了不同时空条件下,藏漂自我表达和地方意义之间的关系演变。结果显示:该关系具有显著的阶段性特征,具体表现为:错配期——以寻求"诗意地方"为核心的自我表达强化;适配期——以追求"放任自我"为目标的地方意义生产;择配期——以多元价值为诉求的自我与地方调适。在此基础上,研究认为藏漂自我表达与地方意义的时空互动,本质上也是在不同阶段对真实意义的持续追求。在整个旅藏过程中,这种真实意义先后表现为自我真实、体验真实和价值真实的补充与替代,且呈现出由自我向朋友、家人和地方扩散的外推趋势。本研究的主要贡献在于同时从自我和地方两个基本点出发,明确了在藏漂寻求自我恢复和地方支持过程中人地关系核心意义的阶段呈现和发展规律,希望能为探究旅居者价值追求演变规律、人地关系联动机制和民族地区的现代化发展提供有益补充。

关键词：藏漂地方意义自我表达现代性拉萨

Prediction of a maximum pull-out load of anchor bolts using an optimal combination model

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Journal of Southeast University(English Edition) 2021年第2期37卷 199-208页

作者： Ma Wenjie wang Binglong wang Xu wang bolin Key Laboratory of Road and Traffic Engineering of the Ministry of Education Tongji University Shanghai 201804 China Shanghai Key Laboratory of Rail Infrastructure Durability and System Safety Tongji University Shanghai 201804 China School of Civil Engineering Lanzhou Jiaotong University Lanzhou 730070 China

The mixed model of improved exponential and power function and unequal interval gray GM(1,1)model have poor accuracy in predicting the maximum pull-out load of anchor *** optimal combination model was derived using the optimally weighted combination theory and the minimum sum of logarithmic squared errors as the objective *** typical anchor bolt pull-out engineering cases were selected to compare the performance of the proposed model with those of existing *** showed that the optimal combination model was suitable not only for the slow P-s curve but also for the steep P-s *** accuracy and stable reliability,as well as its prediction capability classification,were better than those of the other prediction ***,the optimal combination model is an effective processing method for predicting the maximum pull-out load of anchor bolts according to measured data.

关键词： anchor bolt maximum pull-out load mixed model of improved exponential and power function(MIEPF)model unequal interval gray GM(1,1)model optimal combination model