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期刊论文 13

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Bridging reliability and operations management for superior system availability: Challenges and opportunities

《工程管理前沿（英文）》   页码 391-405 doi: 10.1007/s42524-022-0206-4

摘要： Recently, firms have begun to handle the design, manufacturing, and maintenance of capital goods through a consolidated mechanism called the integrated product-service system. This new paradigm enables firms to deliver high-reliability products while lowering the ownership cost. Hence, holistic optimization models must be proposed for jointly allocating reliability, maintenance, and spare parts inventory across the entire value chain. In the existing literature, these decisions are often made fragmentally, thus resulting in local optimality. This study reviews the extant works pertaining to reliability-redundancy allocation, preventative maintenance, and spare parts logistics models. We discuss the challenges and opportunities of consolidating these decisions under an integrated reliability-maintenance-inventory framework for attaining superior system availability. Specific interest is focused on the new product introduction phase in which firms face a variety of uncertainties, including installed base, usage, reliability, and trade policy. The goal is to call for tackling the integrated reliability-maintenance-inventory allocation model under a nonstationary operating condition. Finally, we place the integrated allocation model in the semiconductor equipment industry and show how the firm deploys reliability initiatives and after-sale support logistics to ensure the fleet uptime for its global customers.

关键词： system availability     product-service integration     installed base     new product introduction     service supply chain     reliability-maintenance-inventory optimization    

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Catheterization via direct cannulation of superior vena cava for a hemodialysis patient with an original

null

《医学前沿（英文）》 2017年 第11卷 第3期   页码 445-448 doi: 10.1007/s11684-017-0520-0

摘要：

Establishing a long-term vascular access in patients exhibiting vascular access exhaustion is challenging. In this study, we reported a case of a direct catheterization in the superior vena cava of a hemodialysis patient with vascular access exhaustion and original dysfunctional catheter inserted via the left internal jugular vein. The direct catheterization was performed with cuffed tunnel catheter (CUFF) and guided by digital subtraction angiography (DSA) and multidetector computed tomography venography (MDCTV). The DSA and MDCTV results revealed an occlusion in the right innominate vein and thromboses in the left innominate, right internal jugular, subclavian, and femoral veins. The distal end of the superior vena cava was localized clearly by the original CUFF under DSA. Directed at the distal end of the superior vena cava, a 0.5-cm secondary puncture was introduced below the lateral head of the sternocleidomastoid muscle via the right neck area. This study is one of the few reports regarding direct catheterization of CUFF via the superior vena cava of a patient with vascular access exhaustion and CUFF dysfunction on the left internal jugular vein. We believe that our study can provide a new alternative for inserting central venous catheter for such patient.

关键词： superior vena cava     intervention     vascular access exhaustion     catheterization     tunneled cuffed hemodialysis catheter    

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Design and mechanism insight on SiC quantum dots sensitized inverse opal TiO with superior photocatalytic

《化学科学与工程前沿（英文）》 2023年 第17卷 第12期   页码 1913-1924 doi: 10.1007/s11705-023-2350-8

摘要： The combination of SiC quantum dots sensitized inverse opal TiO2 photocatalyst is designed in this work and then applied in wastewater purification under simulated sunlight. From various spectroscopic techniques, it is found that electrons transfer directionally from SiC quantum dots to inverse opal TiO2, and the energy difference between their conduction/valence bands can reduce the recombination rate of photogenerated carriers and provide a pathway with low interfacial resistance for charge transfer inside the composite. As a result, a typical type-II mechanism is proved to dominate the photoinduced charge transfer process. Meanwhile, the composite achieves excellent photocatalytic performances (the highest apparent kinetic constant of 0.037 min–1), which is 6.2 times (0.006 min–1) and 2.1 times (0.018 min–1) of the bare inverse opal TiO2 and commercial P25 photocatalysts. Therefore, the stability and non-toxicity of SiC quantum dots sensitized inverse opal TiO2 composite enables it with great potential in practical photocatalytic applications.

关键词： inverse opal TiO2     silicon carbide quantum dots     quantum dot sensitized photocatalyst     type-II charge transfer route    

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Construction of defect-containing UiO-66/MoSe heterojunctions with superior photocatalytic performance

《化学科学与工程前沿（英文）》 2023年 第17卷 第4期   页码 449-459 doi: 10.1007/s11705-022-2226-3

摘要： Metal–organic frameworks are recognized as promising multifunctional materials, especially metal–organic framework-based photocatalysts, which are considered to be ideal photocatalytic materials. Herein, a new type of UiO-66/MoSe2 composite was prepared using the solvothermal method. The optimum composite was selected by adjusting the mass ratio of UiO-66 and MoSe2. X-ray diffraction analysis showed that the mass ratio influenced the crystal plane exposure rate of the composite, which may have affected its photocatalytic performance. The composite is composed of ultra-thin flower-like MoSe2 that wrapped around cubic UiO-66, a structure that increases the abundance of active sites for reactions and is more conducive to the separation of carriers. The photocatalytic properties of the composite were evaluated by measuring the degradation rate of Rhodamine B and the catalyst’s ability to reduce Cr(VI)-containing wastewater under visible light irradiation. Rhodamine B was decolorized completely in 120 min, and most of the Cr(VI) was reduced within 150 min. The photochemical mechanism of the complex was studied in detail. The existence of Mo6+ and oxygen vacancies, in addition to the Z-type heterojunction promote the separation of electrons and holes, which enhances the photocatalytic effect.

关键词： UiO-66/MoSe2     photocatalysis     dye-containing wastewater     heavy metal wastewater     oxygen vacancies    

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BGB-A445, a novel non-ligand-blocking agonistic anti-OX40 antibody, exhibits superior immune activation

《医学前沿（英文）》 doi: 10.1007/s11684-023-0996-8

摘要： OX40 is a costimulatory receptor that is expressed primarily on activated CD4+, CD8+, and regulatory T cells. The ligation of OX40 to its sole ligand OX40L potentiates T cell expansion, differentiation, and activation and also promotes dendritic cells to mature to enhance their cytokine production. Therefore, the use of agonistic anti-OX40 antibodies for cancer immunotherapy has gained great interest. However, most of the agonistic anti-OX40 antibodies in the clinic are OX40L-competitive and show limited efficacy. Here, we discovered that BGB-A445, a non-ligand-competitive agonistic anti-OX40 antibody currently under clinical investigation, induced optimal T cell activation without impairing dendritic cell function. In addition, BGB-A445 dose-dependently and significantly depleted regulatory T cells in vitro and in vivo via antibody-dependent cellular cytotoxicity. In the MC38 syngeneic model established in humanized OX40 knock-in mice, BGB-A445 demonstrated robust and dose-dependent antitumor efficacy, whereas the ligand-competitive anti-OX40 antibody showed antitumor efficacy characterized by a hook effect. Furthermore, BGB-A445 demonstrated a strong combination antitumor effect with an anti-PD-1 antibody. Taken together, our findings show that BGB-A445, which does not block OX40–OX40L interaction in contrast to clinical-stage anti-OX40 antibodies, shows superior immune-stimulating effects and antitumor efficacy and thus warrants further clinical investigation.

关键词： BGB-A445     OX40     agonistic antibody     OX40L noncompetitive    

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合成超级高能量密度材料途径的探索

于永忠

《中国工程科学》 1999年 第1卷 第2期   页码 91-94

摘要：

高能炸药的发展可以看做经TNT，RDX，HMX三个阶段，而现在进入以CL-20为标志的第四个阶段，CL-20的能量密度增益也仅大于HMX约10%；文章举出了量子化学家们对可能的超级高能量密度材料八氮杂立方烷性能所做的引人注目的计算结果，并强调新的氮同素异形体将是最有希望的超级高能量密度材料。最近在质谱谱线中发现了N5+，Christe制得了N5+的盐。

关于聚合氮Nn，n为一个很大的数字，N原子均以共价键相结合而成为三维的网状结构，它是最值得重视的，有可能成为下一世纪威力最大的超级高级量密度材料。

关键词： 高能量密度材料     氮原子簇     聚合氮    

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Plated contacts for solar cells with superior adhesion strength to screen printed solar cells

R. CHEN,S. WANG,A. WENHAM,Z. SHI,T. YOUNG,J. JI,M. EDWARDS,A. SUGIANTO,L. MAI,S. WENHAM,C. CHONG

《能源前沿（英文）》 2017年 第11卷 第1期   页码 72-77 doi: 10.1007/s11708-016-0428-4

摘要： The improvement of adhesion strength and durability of plated contacts is required for cell manufacturers to gain confidence for large-scale manufacturing. To overcome weak adhesion at the metal/Si interface, new approaches were developed. These involve the formation of laser-ablated anchor points, or grooves in the extreme case of overlapping anchor points, in the heavily doped silicon surface. When plated, these features greatly strengthen the mechanical adhesion strength of the metal. A stylus-based adhesion tester was developed specifically for evaluating the effectiveness of plated contacts to smooth silicon surfaces. The use of such a tester was also extended in this work to textured and roughened surfaces to allow evaluation of different metal contacting approaches. The adhesion strengths for various metal contacting schemes were evaluated, including screen-printed silver contacts, nickel/copper (Ni/Cu) light-induced plated (LIP) contacts for laser-doped selective emitter (LDSE) cells, buried-contact solar cells (BCSCs), and Ni/Cu LIP contacts formed with laser-ablated anchoring points in selective emitter (LAASE) cells. The latter has superior adhesion strength. The standard “peel test” of the industry was compared to the stylus-based adhesion testing, with the latter shown value for testing metal contacts on smooth surfaces but with caution needed for use with textured or roughened surfaces.

关键词： light-induced plating     metal adhesion strength     copper plating     metal contacts     solar cell durability     silicon solar cells    

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Prediction of the flash points of alkanes by group bond contribution method using artificial neural networks

PAN Yong, JIANG Juncheng, WANG Zhirong

《化学科学与工程前沿（英文）》 2007年 第1卷 第4期   页码 390-394 doi: 10.1007/s11705-007-0071-z

摘要： A group bond contribution model using artificial neural networks, which had the high ability of nonlinear of prediction, was established to predict the flash points of alkanes. This model contained not only the information of group property but also connectivity in molecules. A set of 16 group bonds were used as input parameters of neural networks to study the correlation of molecular structures with flash points of 44 alkanes. The results showed that the predicted flash points were in good agreement with the experimental data that the absolute mean absolute error was 6.9 K and the absolute mean relative error was 2.29%, which were superior to those of traditional group contribution methods. The method can be used not only to reveal the quantitative correlation between flash points and molecular structures of alkanes but also to predict the flash points of organic compounds for chemical engineering.

关键词： information     nonlinear     quantitative correlation     superior     molecular    

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Endoscopic resection of a huge Brunner's gland adenoma

ZHANG Binbin, REN Xu, TANG Xiufen, CHI Yuxin, SHI Xuesong

《医学前沿（英文）》 2008年 第2卷 第4期   页码 414-418 doi: 10.1007/s11684-008-0080-4

摘要： Brunner’s gland adenoma is a rare tumour of the duodenum, which is usually benign. A 71-year-old woman presenting with epigastric pain, upper gastrointestinal haemorrhage and melaena was reported in this paper. Upper gastro-intestinal (GI) endoscopy revealed a large pedunculated tumour on the superior part of the duodenal bulb. Endoscopic polypectomy was successfully performed by clipping and nylon thread without any complications. Histological examination revealed a Brunner’s gland adenoma.

关键词： superior     Histological examination     endoscopy     gastro-intestinal     gastrointestinal haemorrhage    

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螺旋藻优质高产的新方法研究

刘德盛,庄惠如,郑凌凌,林嵩,胡宁三

《中国工程科学》 2003年 第5卷 第12期   页码 12-18

摘要：

螺旋藻是一种已有35亿年生命史的最古老的原核光合生物，已被联合国粮农组织（FAO）和世界卫生组织（WHO）誉为“21世纪最佳保健食品”。通过多年多点室内外试验研究，探明了TA乳粉促进螺旋藻优质高产的应用技术。在螺旋藻工厂化生产中，向养殖池添加TA0.01～0.02mg/L的TA乳粉，能促进螺旋藻的细胞分裂、增殖及藻丝生长，提高净光合速率和干物质积累，增强硝酸还原酶活力和呼吸强度，并显著提高蛋白质、氨基酸、藻蓝蛋白、β-胡萝卜素、叶绿素及类胡萝卜素等含量。在促进螺旋藻品质明显改善的同时，还能显著提高其生物产量，处理比对照的增产幅度可达1.19～1.76 g/d·m2，增产率20%～30%。用TA乳粉作为螺旋藻养殖的调节剂及其养殖工艺是一项新创举，并开拓了TA乳粉在微藻上应用研究的新领域，是促进螺旋藻优质高产的一种比较好的方法，应用前景十分广阔。

关键词： TA乳粉     螺旋藻     植物生长调节剂    

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Superior performance in visible-light-driven hydrogen evolution reaction of three-dimensionally ordered

《化学科学与工程前沿（英文）》 2021年 第15卷 第6期   页码 1561-1571 doi: 10.1007/s11705-021-2089-z

摘要： It is of broad interest to develop emerging photocatalysts with excellent light-harvesting capacity and high charge carrier separation efficiency for visible light photocatalytic hydrogen evolution reaction. However, achieving satisfying hydrogen evolution efficiency under noble metal-free conditions remains challenging. In this study, we demonstrate the fabrication of three-dimensionally ordered macroporous SrTiO3 decorated with ZnxCd1−xS nanoparticles for hydrogen production under visible light irradiation (λ>420 nm). Synergetic enhancement of photocatalytic activity is achieved by the slow photon effect and improved separation efficiency of photogenerated charge carriers. The obtained composites could afford very high hydrogen production efficiencies up to 19.67 mmol·g−1·h−1, with an apparent quantum efficiency of 35.9% at 420 nm, which is 4.2 and 23.9 times higher than those of pure Zn0.5Cd0.5S (4.67 mmol·g−1·h−1) and CdS (0.82 mmol·g−1·h−1), respectively. In particular, under Pt-free conditions, an attractive hydrogen production rate (3.23 mmol·g−1·h−1) was achieved, providing a low-cost and high-efficiency strategy to produce hydrogen from water splitting. Moreover, the composites showed excellent stability, and no obvious loss in activity was observed after five cycling tests.

关键词： three-dimensionally ordered macroporous SrTiO3     ZnxCd1–xS     visible light     hydrogen production     promotion mechanism    

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Nickel-carbonate nanowire array: An efficient and durable electrocatalyst for water oxidation under nearly neutral conditions

Yuyao Ji, Min Ma, Xuqiang Ji, Xiaoli Xiong, Xuping Sun

《化学科学与工程前沿（英文）》 2018年 第12卷 第3期   页码 467-472 doi: 10.1007/s11705-018-1717-8

摘要：

It is highly attractive but still remains a great challenge to develop an efficient electrocatalyst for oxygen evolution reaction under nearly neutral conditions. In this work, we report the transformation of Ni3S2 nanowire array on nickel foam into the amorphous nickel carbonate nanowire array on nickel foam (NiCO3/NF). The resulting NiCO3/NF shows high electrocatalytic activity towards water oxidation and affords current density of 50 mA·cm−2 at overpotential of 395 mV in 1.0 mol·L−1 KHCO3. Moreover, this NiCO3/NF is also durable with a long-term electrochemical durability of 60 h. This catalyst electrode achieves a high turnover frequency of 0.21 mol O2·s−1 at the overpotential of 500 mV.

关键词： water oxidation     NiCO3/NF     nearly neutral conditions     superior activity     electocatalyst    

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基于蝶翅三级微纳米结构的定制光子工程辐射制冷纺织品 Article

郭竑宇, 牛田野, 俞建勇, 王学利, 斯阳

《工程（英文）》 2023年 第31卷 第12期   页码 120-126 doi: 10.1016/j.eng.2023.07.019

摘要：

通过将被动辐射制冷策略与个人热管理技术相结合，为缓解人体在户外活动中的热不适感提供了新的思路。然而，目前大多数被动辐射制冷材料在穿着舒适性和耐用性方面存在不足。本文采用微阵列技术，成功制备出了具有辐射制冷能力的定制光子工程可穿戴纺织品。所开发的辐射制冷纺织品（RCTs）具有一定的透气透湿性、结构稳定性和扩展光谱响应性（太阳光反射率91.7%、大气窗口发射率95.8%）。在正午炎热环境的室外降温测试中，RCTs所覆盖的皮肤模拟器温度比棉织物低4.4 ℃。这种仿生结构的开发为可穿戴、热湿舒适和结构稳定的辐射制冷纺织品在个人热管理领域的应用提供了新的见解。

关键词： 仿生材料     个人热管理     纺织品     辐射制冷    

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标题 作者 时间 类型 操作

Bridging reliability and operations management for superior system availability: Challenges and opportunities

期刊论文

Catheterization via direct cannulation of superior vena cava for a hemodialysis patient with an original

null

期刊论文

Design and mechanism insight on SiC quantum dots sensitized inverse opal TiO with superior photocatalytic

期刊论文

Construction of defect-containing UiO-66/MoSe heterojunctions with superior photocatalytic performance

期刊论文

BGB-A445, a novel non-ligand-blocking agonistic anti-OX40 antibody, exhibits superior immune activation

期刊论文

合成超级高能量密度材料途径的探索

于永忠

期刊论文

Plated contacts for solar cells with superior adhesion strength to screen printed solar cells

R. CHEN,S. WANG,A. WENHAM,Z. SHI,T. YOUNG,J. JI,M. EDWARDS,A. SUGIANTO,L. MAI,S. WENHAM,C. CHONG

期刊论文

Prediction of the flash points of alkanes by group bond contribution method using artificial neural networks

PAN Yong, JIANG Juncheng, WANG Zhirong

期刊论文

Endoscopic resection of a huge Brunner's gland adenoma

ZHANG Binbin, REN Xu, TANG Xiufen, CHI Yuxin, SHI Xuesong

期刊论文

螺旋藻优质高产的新方法研究

刘德盛,庄惠如,郑凌凌,林嵩,胡宁三

期刊论文

Superior performance in visible-light-driven hydrogen evolution reaction of three-dimensionally ordered

期刊论文

Nickel-carbonate nanowire array: An efficient and durable electrocatalyst for water oxidation under nearly neutral conditions

Yuyao Ji, Min Ma, Xuqiang Ji, Xiaoli Xiong, Xuping Sun

期刊论文

基于蝶翅三级微纳米结构的定制光子工程辐射制冷纺织品

郭竑宇, 牛田野, 俞建勇, 王学利, 斯阳

期刊论文