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| 1 | Multi-Point Forming Technology for Sheet Metal显示文摘Multi-point forming (MPF) is an advanced manufacturing technology for three-dimensional sheet metal parts. In this paper, the MPF integrated system is described that can form a variety of part shapes without the need for solid dies, and given only geometry and material information about the desired part. The central component of this system is a pair of matrices of punches, and the desired discrete die surface is constructed by changing the positions of punches though the CAD and control system. The basic MPF process is introduced and the typical application examples show the applicability of the MPF technology. Wrinkle and dimple are the major forming defects in MPF process, numerical simulation is a feasible way to predict forming defects in MPF. In conventional stamping, the mode to form sheet metal with blankholder is an effective way to suppress wrinkling; the same is true in MPF. A MPF press with flexible blankholder was developed, and the forming results indicated the forming stability of this technique. Based on the flexibility of MPF, varying deformation path MPF and sectional MPF were explored that cannot be realized in conventional stamping. By controlling each punch in real-time, a sheet part can be manufactured along a specific forming path. When the path of deformation in MPF is designed properly, forming defects will be avoided completely and lager deformation is achieved. A work piece can be formed section by section though the sectional MPF, and this technique makes it possible to manufacture large size parts in a small MPF press. Some critical experiments were performed that confirmed the validity of two special MPF techniques. | LI Ming-zhe, CAI Zhong-yi, SUI Zhen, YAN Qing-guang (Roll Forging Institute, Jilin University of Technology, Changchun 130025, China) | 2002 | 厦门大学学报(自然科学版)2002，41，S1： | 10 |
| 2 | Biological treatment of chicken feather waste for improved biogas production显示文摘A two-stage system was developed which combines the biological degradation of keratin-rich waste with the production of biogas.Chicken feather waste was treated biologically with a recombinant Bacillus megaterium strain showing keratinase activity prior to biogas production.Chopped,autoclaved chicken feathers (4%,W/V) were completely degraded,resulting in a yellowish fermentation broth with a level of 0.51 mg/mL soluble proteins after 8 days of cultivation of the recombinant strain.During the subsequent anaerobic batch digestion experiments,methane production of 0.35 Nm 3 /kg dry feathers (i.e.,0.4 Nm 3 /kg volatile solids of feathers),corresponding to 80% of the theoretical value on proteins,was achieved from the feather hydrolyzates,independently of the prehydrolysis time period of 1,2 or 8 days.Cultivation with a native keratinase producing strain,Bacillus licheniformis resulted in only 0.25 mg/mL soluble proteins in the feather hydrolyzate,which then was digested achieving a maximum accumulated methane production of 0.31 Nm 3 /kg dry feathers.Feather hydrolyzates treated with the wild type B.megaterium produced 0.21 Nm 3 CH 4 /kg dry feathers as maximum yield. | Gergely Forgcs Saeid Alinezhad Amir Mirabdollah Elisabeth Feuk-Lagerstedt Ilona Srvri Horvth | 2011 | Journal of Environmental Sciences2011，23，10： | 4 |
| 3 | 钩式换辊在铝箔轧机设计中的应用和改进显示文摘介绍在铝箔轧机设计中对钩式换辊装置的结构简化和改进,并列表比较。 | Liu Chengguang (Shanxi Forging and Rolling Equipment Works) | 1998 | 冶金设备1998，，6： | 2 |
| 4 | Importance of viral and bacterial infections in chronic obstructive disease eacerbations显示文摘 | De Serres G Lampron N La Forge J | 2009 | Clin Virol2009，46，2： | 1 |
| 5 | Apoptotic death of hair cells in mammalian vestibular sensory epithelia显示文摘 | Forge A Li L | 2000 | Hear - Res2000，139，： | 1 |
| 6 | Moral Responsibility and the ' Ignorant Scientist' 显示文摘 | FORGE J | 2000 | Science and Engineering Ethics2000，3，6： | 1 |
| 7 | 显示文摘 | Laurent S Forge D Port M | 2008 | Chem Rev2008，108，： | 1 |
| 8 | Gentamicin alters membrane structure as shown by freeze-fracture of liposomes 显示文摘 | Forge A Zajic G Davies S | 1989 | HearRes1989，37，2： | 1 |
| 9 | The influence of cigarette smoking on human spem quality and DNA fragmentation显示文摘 | SEPANIAK S FORGES T GERARD H | 2006 | Toxicology2006，223，12： | 1 |
| 10 | Modeling of performance of PEM fuel cell with conventional and interdigitated flow fields显示文摘 | KAZIM A LIU H T FORGE P | | 0，，： | 1 |
| 11 | Biological activity and environmental impact of anionic surfactants显示文摘 | CSERH(A)TI T FORG(A)CS E OROS G | 2002 | Environment International2002，28，5： | 1 |
| 12 | Morphological evidence for supporting cell to hair ce ll conversion in the mammalian utricular macula显示文摘 | Li L Forge A | 1997 | Int J Dev Neurosci1997，15，： | 1 |
| 13 | Impact of folate and homocysteine metabolism on human reproductive health显示文摘 | Forges T Monnier-Barbarino P Alberto JM | 2007 | Hum Reprod Update2007，13，： | 1 |
| 14 | Ultrastructural evidence for bair cell regeneration in the mammalian inner ear显示文摘 | Forge A Lin Li Corwin JT | 1993 | Science1993，259，： | 1 |
| 15 | Biological activity and environmental impact of anionic surfactants显示文摘 | Tibor Cserháti Esther Forgács Gyula Oros | 2002 | Environment International2002，，5： | 1 |
| 16 | Hair cell recovery in the vestibular sensor y epithelia of mature guinea pigs显示文摘 | Forge A Li L Nevill G | 1998 | J Comp Neurol1998，397，： | 1 |
| 17 | Moral responsibility and the 'ignorant scientist' 显示文摘 | John Forge | 2000 | Science and Engineering Ethics2000，3，6： | 1 |
| 18 | Apoptosis in serum of patients with solid tumours显示文摘 | Holdenrieder S Stieber P Forg T | 1999 | Anticancer Res1999，19，4： | 1 |
| 19 | Aminoglyciside antibiotics 显示文摘 | Forge A Schacht J | 2000 | Audiol Neurootol2000，5，1： | 1 |
| 20 | Gap junctions and connexin expression in the inner ear 显示文摘 | Forge A Becker D Casalotti S | 1999 | Novartis Found Symp1999，219，： | 1 |
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