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硼中子俘获治疗 4

医院中子照射器 3

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Fertilizer drawn forward osmosis as an alternative to 2nd pass seawater reverse osmosis: Estimation of boronremoval and energy consumption

《环境科学与工程前沿（英文）》 2021年第15卷第6期 doi: 10.1007/s11783-021-1428-0

摘要：

• The boron concentration in diluted DS can satisfy the irrigation water standard.

关键词： Fertilizer drawn forward osmosis (FDFO) Boron removal Specific energy consumption (SEC) Seawater reverse osmosis (SWRO) Irrigation water production

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Synthesis of boron modified CoMo/Al

Hui Shang, Chong Guo, Pengfei Ye, Wenhui Zhang

《化学科学与工程前沿（英文）》 2021年第15卷第5期页码 1088-1098 doi: 10.1007/s11705-020-1969-y

摘要： Catalytic hydrodesulfurization (HDS) technique is widely used for clean gasoline production. However, traditional HDS catalyst (CoMo/ -Al O ) exhibits high hydrogenation performance of olefins (HYDO), resulting in the loss of gasoline octane number. To achieve high HDS/HYDO ratio, the key issue is to reduce the interaction between active metals and the support, therefore, in this research, the modified CoMo/ -Al O catalysts with various boron amounts were investigated under traditional or microwave heating. The effects of preparing methods as well as boron amounts on the active phase, acidic properties and HDS catalytic activities were examined. Results show that the modification, especially under microwave treatment, can significantly weaken the interaction between the active component and the support by enlarging the surface area and pore diameter, and reducing the acidity of the support. As a result, the stacking numbers of MoS slabs were obviously improved by the modification and microwave treatment, contributing to higher edge/rim ratio, and resulting in higher HDS performance and selectivity to olefin.

关键词： CoMo catalyst boron modification surface acidity microwave heating selective hydrodesulfurization

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迈入新世纪的硼中子俘获疗法（BNCT）

周永茂

《中国工程科学》 2012年第14卷第8期页码 4-13

摘要：

扼要叙述进入21世纪之际，硼中子俘获疗法（boron neutorn capture therapy，BNCT）在国际范围内的一些显著进展

关键词：中子俘获疗法临床试治肿瘤复发硼浓度探测靶向药物医院中子照射器

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Improving hole transfer of boron nitride quantum dots modified PDI for efficient photodegradation

《化学科学与工程前沿（英文）》 2023年第17卷第11期页码 1718-1727 doi: 10.1007/s11705-023-2319-7

摘要： In recent years, organic photocatalyst under visible-light absorption has shown significant potential for solving environmental problems. However, it is still a great challenge for constructing a highly active organic photocatalyst due to the low separation efficiency of photogenerated carriers. Herein, an effective and robust photocatalyst perylene-3,4,9,10-tetracarboxylic diamide/boron nitride quantum dots (PDI/BNQDs), consisting of self-assemble PDI with π–π stacking structure and BNQDs, has been constructed and researched under visible light irradiation. The PDI/BNQDs composite gradually increases organic pollutant photodegradation with the loading amount of BNQDs. With 10 mL of BNQDs solution added (PDI/BNQDs-10), the organic pollutant photodegradation performance reaches a maximum, about 6.16 times higher with methylene blue and 1.68 times higher with ciprofloxacin than that of pure PDI supramolecular. The enhancement is attributed to improved separation of photogenerated carriers from self-assembled PDI by BNQDs due to their preeminent ability to extract holes. This work is significant for the supplement of PDI supramolecular composite materials. We believe that this photocatalytic design is capable of expanding organic semiconductors’ potential for their applications in photocatalysis.

关键词： PDI boron nitride quantum dots photocatalysis hole transfer

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Mechanical responses of pristine and defective hexagonal boron-nitride nanosheets: A molecular dynamics

Mohammad SALAVATI, Arvin MOJAHEDIN, Ali Hossein Nezhad SHIRAZI

《结构与土木工程前沿（英文）》 2020年第14卷第3期页码 623-631 doi: 10.1007/s11709-020-0616-5

摘要： In this work we conducted classical molecular dynamics (MD) simulation to investigate the mechanical characteristics and failure mechanism of hexagonal boron-nitride (h-BN) nanosheets. Pristine and defective structure of h-BN nanosheets were considered under the uniaxial tensile loadings at various temperatures. The defective structure contains three types of the most common initial defects in engineering materials that are known as cracks, notches (with various length/size), and point vacancy defects (with a wide range of concentration). MD simulation results demonstrate a high load-bearing capacity of extremely defective (amorphized) h-BN nanosheets. Our results also reveal that the tensile strength decline by increasing the defect content and temperature as well. Our MD results provide a comprehensive and useful vision concerning the mechanical properties of h-BN nanosheets with/without defects, which is very critical for the designing of nanodevices exploiting the exceptional physics of h-BN.

关键词： hexagonal boron-nitride mechanical properties crack notch point defects molecular dynamics

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Statistical analysis of recombination properties of the boron-oxygen defect in p-type Czochralski silicon

Nitin NAMPALLI,Tsun Hang FUNG,Stuart WENHAM,Brett HALLAM,Malcolm ABBOTT

《能源前沿（英文）》 2017年第11卷第1期页码 4-22 doi: 10.1007/s11708-016-0442-6

摘要： This paper presents the application of lifetime spectroscopy to the study of carrier-induced degradation ascribed to the boron-oxygen (BO) defect. Specifically, a large data set of p-type silicon samples is used to investigate two important aspects of carrier lifetime analysis: ① the methods used to extract the recombination lifetime associated with the defect and ② the underlying assumption that carrier injection does not affect lifetime components unrelated to the defect. The results demonstrate that the capture cross section ratio associated with the donor level of the BO defect ( ) vary widely depending on the specific method used to extract the defect-specific recombination lifetime. For the data set studied here, it was also found that illumination used to form the defect caused minor, but statistically significant changes in the surface passivation used. This violation of the fundamental assumption could be accounted for by applying appropriate curve fitting methods, resulting in an improved estimate of (11.90±0.45) for the fully formed BO defect when modeled using the donor level alone. Illumination also appeared to cause a minor, apparently injection-independent change in lifetime that could not be attributed to the donor level of the BO defect alone and is likely related to the acceptor level of the BO defect. While specific to the BO defect, this study has implications for the use of lifetime spectroscopy to study other carrier induced defects. Finally, we demonstrate the use of a unit-less regression goodness-of-fit metric for lifetime data that is easy to interpret and accounts for repeatability error.

关键词： Czochralski silicon boron-oxygen defect injection dependent lifetime spectroscopy goodness-of-fit repeatability error

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Water-soluble BODIPY and aza-BODIPY dyes: synthetic progress and applications

Gang FAN,Le YANG,Zhijian CHEN

《化学科学与工程前沿（英文）》 2014年第8卷第4期页码 405-417 doi: 10.1007/s11705-014-1445-7

摘要： In recent years, boron-dipyrromethene (BODIPY) and boron-azadipyrromethene (aza-BODIPY) dyes have attracted considerable multidisciplinary attention due to their diverse applications. By introducing various hydrophilic groups, such as quaternary ammonium, sulfonate or oligo-ethyleneglycol moieties into the BODIPY core, the solubilities of these dyes in aqueous solution can be greatly improved while maintaining their high fluorescence quantum yields. Accordingly, applying these fluorescent dyes in aqueous systems to areas such as chemosensors, biomacromolecule labeling, bio-imaging and photodynamic therapy has been achieved. In this article, the recent progress on the synthesis, optical properties and application of water-soluble BODIPY dyes and aza-BODIPY dyes is reviewed.

关键词： boron-dipyrromethene boron-azadipyrromethene synthetic progress applications

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叶酸靶向含硼脂质体的制备及其包封率的测定

王志会,钱林学,刘冬

《中国工程科学》 2012年第14卷第8期页码 78-81

摘要：

制备具有良好靶向性及包封率高的硼脂质体,为硼中子俘获治疗方法的研究与应用建立了一个有效的靶向给药途径。采用复乳法及薄膜—超声分散法制备叶酸靶向硼脂质体, 利用高效液相色谱法检测4—羟基苯硼酸4—Hydroxyphenylboronicacid（HBA）脂质体、2—噻吩硼酸2—thiophenylboric acid（TBA）脂质体、4—叔丁基苯硼酸4—tert-Butylphenylboronic Acid（BBA）脂质体的含量及包封率，以包封率为评价指标，采用单因素法优化脂质体的制备处方和工艺条件。筛选出HBA、TBA、BBA最优的色谱条件，分别绘制出标准曲线，结果表明在1~100 μg/mL范围内线性关系良好。HBA、TBA、BBA脂质体在最优制备处方和工艺条件下包封率分别为25.7 %、38.9 %、94.8 %。BBA 脂质体优化后的制备处方和工艺条件如下：胆固醇与磷脂质量比为 1∶1，药脂比为 1∶50，pH值为7.4，按该处方工艺制备的BBA 脂质体包封率在94.8 %。制备叶酸靶向脂质体的优选处方和制备工艺稳定可行，质量控制方法简单、准确, 包封率高。

关键词：硼中子俘获治疗脂质体叶酸靶向包封率

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一种新的变形高温合金强化方法——磷硼微合金复合强化

胡壮麒,孙文儒,宋洪伟

《中国工程科学》 2005年第7卷第3期页码 17-26

摘要：

阐述了磷、硼的微合金强化作用。磷、硼微合金强化可成倍提高变形合金的持久寿命、降低蠕变速率一个数量级以上。利用磷、硼微合金化技术可发展长寿命高温合金，提高IN718合金的使用温度发展可在700℃长期使用并具有优良性能的涡轮盘合金。

关键词：变形高温合金磷硼微合金化

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BORON：面向普适计算的超轻量低功耗加密设计 Article

Gaurav BANSOD,Narayan PISHAROTY,Abhijit PATIL

《信息与电子工程前沿（英文）》 2017年第18卷第3期页码 317-331 doi: 10.1631/FITEE.1500415

摘要：我们提出一种超轻量，紧凑且低功耗的分组密码：BORON。BORON是一种替换、互换网络，运行于64位纯文本上，支持128位或80位密钥长度。针对128位密钥和80位密钥，BORON的紧凑结构分别需要1939个和1626个等效门（gate equivalents, GE）。BORON包含移位、循环移位和异或操作。BORON在硬、软件平台上均具有较好的性能。与轻量加密LED相比，BORON具有更低的功耗水平；与现有SP网络加密相比，BORON具有更高的吞吐量。本文还展示了BORON的安全性分析及其作为超轻量紧凑型加密的性能。BORON可适用于将引脚面积和功率耗散作为关键参数的应用。

关键词：轻量密码；SP网络；分组密码；物联网；加密；嵌入式安全

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热冲压成形新型B 钢开发与工艺研究

宋磊峰,马鸣图,张宜生,易红亮,郭怡晖

《中国工程科学》 2014年第16卷第1期页码 71-75

摘要：

在传统22MnB5 成分基础上添加Cr、Mo等化学元素，开发出热冲压专用新钢种22MnMoB材料，并通过金相显微镜、显微硬度计、电子拉伸试验机等设备对22MnMoB材料进行材料性能、材料连续冷却转变曲线（CCT）、热处理工艺性能测试，通过中试线、热冲压模具等设备测试材料的工艺参数、试制热冲压零件并测试零件性能。试制结果显示，新开发的22MnMoB材料具有良好的抗短时高温氧化性能、成形淬火后材料组织细小、强度级别与原有22MnB5相当，但总延伸率大大提高。

关键词：热冲压硼钢成分抗氧化

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Electricity-driven ammonia oxidation and acetate production in microbial electrosynthesis systems

《环境科学与工程前沿（英文）》 2022年第16卷第4期 doi: 10.1007/s11783-021-1476-5

摘要：

• MES was constructed for simultaneous ammonia removal and acetate production.

关键词： Biocathode Carbon dioxide Electrochemical oxidation Graphite anode Boron-doped diamond

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硼中子俘获治疗人脑胶质母细胞瘤的前景和困惑

周幽心,孙婷,杨伟廉,杜子威

《中国工程科学》 2012年第14卷第8期页码 82-84

摘要：

硼中子俘获疗法是一种可以选择性杀伤肿瘤细胞的放射疗法，其产生的α粒子对临床治疗新诊断和复发的脑胶质母细胞瘤有较好的疗效。发达国家20世纪五六十年代就已进入临床试验，但一直受到硼携带载体和中子源发展的限制。现就其治疗脑胶质母细胞瘤的前景做一综述。

关键词：硼中子俘获疗法多形性胶质母细胞瘤胶质瘤干细胞

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硼中子俘获疗法治疗脑胶质瘤及难治性垂体腺瘤的现状及展望

代从新,姚勇,王任直

《中国工程科学》 2012年第14卷第8期页码 96-99

摘要：

硼中子俘获疗法在脑胶质瘤治疗研究中已经取得很大进展，但由于脑胶质瘤的特性以及缺乏与肿瘤高亲和力的掺硼药物，硼中子俘获治疗的效果并不十分理想。此外，难治性垂体腺瘤具有很多与脑胶质瘤相同的特点，硼中子俘获疗法可能具有一定的意义。文章重点介绍硼中子俘获疗法治疗脑胶质瘤的研究现状和治疗难治性垂体腺瘤的可能性。

关键词：硼中子俘获疗法胶质瘤难治性垂体腺瘤

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Engineering the electronic and geometric structure of VO/BN@TiO heterostructure for efficient aerobic oxidative desulfurization

《化学科学与工程前沿（英文）》 2023年第17卷第3期页码 276-287 doi: 10.1007/s11705-022-2242-3

摘要： Particle size governs the electronic and geometric structure of metal nanoparticles (NPs), shaping their catalytic performances in heterogeneous catalysis. However, precisely controlling the size of active metal NPs and thereafter their catalytic activities remain an affordable challenge in ultra-deep oxidative desulfurization (ODS) field. Herein, a series of highly-efficient VO_x/boron nitride nanosheets (BNNS)@TiO₂ heterostructures, therein, cetyltrimethylammonium bromide cationic surfactants serving as intercalation agent, BNNS and MXene as precursors, with various VO_x NP sizes were designed and controllably constructed by a facile intercalation confinement strategy. The properties and structures of the prepared catalysts were systematically characterized by different technical methods, and their catalytic activities were investigated for aerobic ODS of dibenzothiophene (DBT). The results show that the size of VO_x NPs and V⁵⁺/V⁴⁺ play decisive roles in the catalytic aerobic ODS of VO_x/BNNS@TiO₂ catalysts and that VO_x/BNNS@TiO₂-2 exhibits the highest ODS activity with 93.7% DBT conversion within 60 min under the reaction temperature of 130 °C and oxygen flow rate of 200 mL·min^–1, which is due to its optimal VO_x dispersion, excellent reducibility and abundant active species. Therefore, the finding here may contribute to the fundamental understanding of structure-activity in ultra-deep ODS and inspire the advancement of highly-efficient catalyst.

关键词： oxidative desulfurization boron nitride vanadium MXene intercalation confinement