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Sufficient downward rotation of the christa philtri on the cleft side: a modified technique
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《医学前沿（英文）》 2013年 第7卷 第4期 页码 510-516 doi: 10.1007/s11684-013-0299-6
Cleft lip and palate (CLP) is the most common craniofacial congenital deformity. The etiology of CLP is multifactorial and involves complex interactions between environmental and genetic factors. Millard’s rotation-advancement technique has long been considered as state-of-the-art for unilateral cleft lip repair. However, this method may leave the christa philtri on the cleft side insufficiently downward rotated, especially in wide complete clefts. In this study, we introduce a modified technique to better rotate the christa philtri on the cleft side down. The skin, muscle, and mucosa in the deformed region were dissected and separately maneuvered. Sixty patients with unilateral complete cleft lip and palate were operated with this technique. The lip height, lip length, and relative height of the christa philtri were measured for symmetry evaluation. No significant difference was observed between the relative height of the christa philtri on both sides, either immediate (P= 0.214) or 10 months after surgery (P = 0.344). The difference observed in the lip height and lip length immediately after surgery became statistically insignificant after 10 months (P = 0.104 for lip height and 0.121 for lip length). These results suggested that sufficient and stable downward rotation of the christa philtri on the cleft side can be achieved using our technique.
关键词： cleft lip and palate rotation advancement sufficient rotation christa philtri geometrically justified
Yang LIU, Jing LIU
《机械工程前沿（英文）》 2012年 第7卷 第4期 页码 376-384 doi: 10.1007/s11465-012-0352-1
This article is dedicated to present a review on existing challenges and latest developments in surgical robotics in attempts to overcome the obstacles lying behind. Rather than to perform an exhaustive evaluation, we would emphasize more on the new insight by digesting the emerging bio-inspired surgical technologies with potentials to revolutionize the field. Typical approaches, possible applications, advantages and technical challenges were discussed. Evolutions of surgical robotics and future trends were analyzed. It can be found that, the major difficulties in the field of surgical robots may not be properly addressed by only using conventional approaches. As an alternative, bio-inspired methods or materials may shed light on new innovations. While endeavors to deal with existing strategies still need to be made, attentions should be paid to also borrow ideas from nature.
关键词： minimally invasive surgery surgical robotics haptic feedback miniaturization bio-inspiration bionics
Effect of RC wall on the development of plastic rotation in the beams of RC frame structures
Amar KAHIL, Aghiles NEKMOUCHE, Said BOUKAIS, Mohand HAMIZI, Naceur Eddine HANNACHI
《结构与土木工程前沿（英文）》 2018年 第12卷 第3期 页码 318-330 doi: 10.1007/s11709-017-0420-z
The objective of this study is, to interpret the influence of reinforced concrete walls addition in reinforced concrete frame structures considering behavior laws that reflects the actual behavior of such structures, by means of Castem2000computer code (pushover analysis). A finite element model is proposed in this study, using the TAKEDA modified behavior model with Timoshenko beams elements. This model is validated initially on experimental model. Then the work has focused on the behavior of a RC frame with 3 levels and three bays to better visualize the behavior of plastic hinges. Once the plastic hinge control parameters are identified (plastic rotation, ultimate curvature), a strengthening by introduction of reinforced concrete walls (RC/wall) at the ends of the reinforced concrete frame (RC/frame) has been performed. The results show that these RC walls significantly improve the behavior, by a relocation of efforts towards the central part of the beams.
关键词： RC/frame RC/wall moment curvature plastic rotation plastic hinge pushover analysis global models
Parasitic rotation evaluation and avoidance of 3-UPU parallel mechanism
Haibo QU, Yuefa FANG, Sheng GUO
《机械工程前沿（英文）》 2012年 第7卷 第2期 页码 210-218 doi: 10.1007/s11465-012-0317-4
Based on the prototype of 3-UPU (universal-prismatic-universal joint) parallel mechanism proposed by Tsai [ ], the parasitic rotation evaluation is performed and calculated the bound of instability of SNU Seoul National University 3-UPU parallel mechanism. Through analysis of the terminal constraint system of the 3-UPU parallel mechanism, the equation about the parasitic rotation and limited clearance is presented. Then the norm of possible parasitic rotation is employed to evaluate the mechanism stability with limited clearance. The higher this number the worst is the pose, the lower it is the best it is. And the contour atlas of parasitic rotation is obtained, which can be used for further analysis and design. With the practice experiment result of SUN 3-UPU parallel mechanism, we find it’s bound of instability, which indicates there will appear the parasitic rotation when the number exceeds the bound. Finally, the method for avoidance of possible parasitic motions is presented by adding redundantly actuated limbs.
关键词： parallel mechanism 3-UPU (universal-prismatic-universal joint) parasitic motions limited clearance redundantly actuated limbs
Advancement in materials for energy-saving lighting devices
Tak H. KIM, Wentai WANG, Qin LI
《化学科学与工程前沿（英文）》 2012年 第6卷 第1期 页码 13-26 doi: 10.1007/s11705-011-1168-y
关键词： energy-saving lighting devices solid state lighting devices
Rotation errors in numerical manifold method and a correction based on large deformation theory
Ning ZHANG, Xu LI, Qinghui JIANG, Xingchao LIN
《结构与土木工程前沿（英文）》 2019年 第13卷 第5期 页码 1036-1053 doi: 10.1007/s11709-019-0535-5
关键词： numerical manifold method rotation large deformation Green strain open-close iteration
SUSTAINABLE SUGARCANE CROPPING IN CHINA
《农业科学与工程前沿（英文）》 2022年 第9卷 第2期 页码 272-283 doi: 10.15302/J-FASE-2022442
Demand for sugar is projected to grow in China for the foreseeable future. However, sugarcane production is unlikely to increase due to increasing production cost and decreasing profit margin. The persisting sugarcane yield plateau and the current cropping system with fertilizer overuse, soil acidification and pests and diseases remain the major productivity constraints. Sugarcane agriculture supports the livelihood of about 28 million farmers in South China; hence, sustaining it is a socioeconomic imperative. More compellingly, to meet the ever-increasing Chinese market demand, annual sugar production must be increased from the current 10 Mt to 16 Mt by 2030 of which 80% to 90% comes from sugarcane. Therefore, increasing sugar yield and crop productivity in an environmentally sustainable way must be a priority. This review examines the current Chinese sugarcane production system and discuss options for its transition to a green, sustainable cropping system, which is vital for the long-term viability of the industry. This analysis shows that reducing chemical inputs, preventing soil degradation, improving soil health, managing water deficit, provision of clean planting material, and consolidation of small farm holdings are critical requirements to transform the current farming practices into an economically and environmentally sustainable sugarcane cropping system.
关键词： sustainable sugarcane cropping / soil health / rotation and intercropping / soil acidification
Mohammad Ali NAGHSH, Aydin SHISHEGARAN, Behnam KARAMI, Timon RABCZUK, Arshia SHISHEGARAN, Hamed TAGHAVIZADEH, Mehdi MORADI
《结构与土木工程前沿（英文）》 2021年 第15卷 第1期 页码 194-212 doi: 10.1007/s11709-020-0688-2
关键词： column-tree moment connection Finite element model parametric study fire regression models gene expression programming
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《医学前沿（英文）》 2013年 第7卷 第3期 页码 306-315 doi: 10.1007/s11684-013-0279-x
Allogeneic hematopoietic stem cell transplantation (HSCT) is one of the most effective options for hematological malignancies, and human leukocyte antigen-partially matched related donors (PMRDs) are a valuable option for HSCT. Several protocols (with or without ex vivo T-cell depletion (TCD)) have been established worldwide. TCD including CD34+positive selection and CD3/CD19 depletion has successfully overcome the human leukocyte antigen disparity. However, TCD is associated with prolonged immune deficiencies, increased risks of infectious complications, and high transplantation-related mortality. PMRD HSCT without ex vivo TCD is well developed, and numerous patients have benefitted from it. Here, we review the literature on PMRD HSCT.
关键词： partially matched related donor hematopoietic stem cell transplantation allogeneic
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《医学前沿（英文）》 2015年 第9卷 第2期 页码 146-161 doi: 10.1007/s11684-014-0373-8
Obesity prevalence has increased in recent years. Lifestyle change fuels obesity, but genetic factors cause more than 50% of average variations in obesity. The advent of genome-wide association studies (GWAS) has hastened the progress of polygenic obesity research. As of this writing, more than 73 obesity susceptibility loci have been identified in ethnic groups through GWAS. The identified loci explain only 2% to 4% of obesity heritability, thereby indicating that a large proportion of loci remain undiscovered. Thus, the next step is to identify and confirm novel loci, which may exhibit smaller effects and lower allele frequencies than established loci. However, achieving these tasks has been difficult for researchers. GWAS help researchers discover the causal loci. Moreover, numerous biological studies have been performed on the polygenic effects on obesity, such as studies on fat mass- and obesity-associated gene (FTO), but the role of these polygenic effects in the mechanism of obesity remains unclear. Thus, obesity-causing variations should be identified, and insights into the biology of polygenic effects on obesity are needed.
关键词： obesity genetics genome-wide association studies body mass index fat mass- and obesity-associated gene
光致旋转技术综述 Review Article
朱琦1,李楠1,苏鹤鸣1,李文强1,胡慧珠1,2
《信息与电子工程前沿（英文）》 2022年 第23卷 第2期 页码 171-185 doi: 10.1631/FITEE.2000338
关键词： 光镊；光致旋转；角动量；微纳转子
《农业科学与工程前沿（英文）》 2022年 第9卷 第2期 页码 295-308 doi: 10.15302/J-FASE-2021434
Since the Green Revolution cropping systems have been progressively homogenized and intensified with increasing rates of inputs such as fertilizers, pesticides and water. This has resulted in higher crop productivity but also a high environmental burden due to increased pollution and water depletion. To identify opportunities for increasing the productivity and reducing the environmental impact of cropping systems, it is crucial to assess the associated trade-offs. The paper presents a model-based analysis of how 30 different crop rotations practiced in the North China Plain could be combined at the regional level to overcome trade-offs between indicators of economic, food security, and environmental performance. The model uses evolutionary multi-objective optimization to maximize revenues, livestock products, dietary and vitamin C yield, and to minimize the decline of the groundwater table. The modeling revealed substantial trade-offs between objectives of maximizing productivity and profitability versus minimizing ground water decline, and between production of livestock products and vitamin C yield. Six strategies each defining a specific combination of cropping systems and contributing to different extents to the various objectives were identified. Implementation of these six strategies could be used to find opportunities to mitigate the trade-offs between objectives. It was concluded that a holistic analysis of the potential of a diversity cropping systems at a regional level is needed to find integrative solutions for challenges due to conflicting objectives for food production, economic viability and environmental protection.
关键词： crop rotation / food security / multi-objective optimization / water use
生物细胞的旋转——基本原理及应用 Review
Tao Tang, Yoichiroh Hosokawa, Takeshi Hayakawa, Yo Tanaka, Weihua Li, Ming Li, Yaxiaer Yalikun
《工程（英文）》 2022年 第10卷 第3期 页码 110-126 doi: 10.1016/j.eng.2020.07.031
细胞旋转是现代生物科学中最重要的细胞操作技术之一，不仅允许从任意角度观察细胞，而且还简化了分析细胞力学特性、表征细胞生理学和进行显微手术的程序。在广泛的学术和工业应用中，已经报道了许多细胞旋转的方法。其中，最受欢迎的是基于微型机器人的直接接触控制和基于场的非接触方法（如光场、磁场、电场、声场和流体动力场方法）。本文首先总结了这六大类方法的基本机制、优点和缺点，然后详细讨论了它们的区别和局限性。本文旨在缩短每种方法之间的差距，并说明细胞旋转领域目前的研究进展及未来前景。
Christoph Paul SCHIMANSKI, Gabriele PASETTI MONIZZA, Carmen MARCHER, Dominik T. MATT
《工程管理前沿（英文）》 2021年 第8卷 第3期 页码 429-441 doi: 10.1007/s42524-020-0105-5
关键词： production management system design Industry 4.0 Last Planner System Kanban earned value management
标题 作者 时间 类型 操作
Sufficient downward rotation of the christa philtri on the cleft side: a modified technique
null
期刊论文
Surgical robotics: A look-back of latest advancement and bio-inspired ways to tackle existing challenges
Yang LIU, Jing LIU
期刊论文
Effect of RC wall on the development of plastic rotation in the beams of RC frame structures
Amar KAHIL, Aghiles NEKMOUCHE, Said BOUKAIS, Mohand HAMIZI, Naceur Eddine HANNACHI
期刊论文
Parasitic rotation evaluation and avoidance of 3-UPU parallel mechanism
Haibo QU, Yuefa FANG, Sheng GUO
期刊论文
Rotation errors in numerical manifold method and a correction based on large deformation theory
Ning ZHANG, Xu LI, Qinghui JIANG, Xingchao LIN
期刊论文
An innovative model for predicting the displacement and rotation of column-tree moment connection under
Mohammad Ali NAGHSH, Aydin SHISHEGARAN, Behnam KARAMI, Timon RABCZUK, Arshia SHISHEGARAN, Hamed TAGHAVIZADEH, Mehdi MORADI
期刊论文
Advancement of human leukocyte antigen-partially matched related hematopoietic stem cell transplantation
null
期刊论文
Advancement in genetic variants conferring obesity susceptibility from genome-wide association studies
null
期刊论文
TRADE-OFFS IN THE DESIGN OF SUSTAINABLE CROPPING SYSTEMS AT A REGIONAL LEVEL: A CASE STUDY ON THE NORTH CHINA PLAIN
期刊论文
生物细胞的旋转——基本原理及应用
Tao Tang, Yoichiroh Hosokawa, Takeshi Hayakawa, Yo Tanaka, Weihua Li, Ming Li, Yaxiaer Yalikun
期刊论文
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