会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明申请
    • METHODS FOR POST-FABRICATION FUNCTIONALIZATION OF POLY(ESTER UREAS)
    • 聚酯(ESTER UREAS)后制备功能化方法
    • US20160237212A1
    • 2016-08-18
    • US15026069
    • 2014-09-30
    • MATTHEW BECKERFei Lin
    • MATTHEW BECKERFei Lin
    • C08G71/02C07C247/04C07C227/18C07C229/34
    • C08G71/02C07C227/18C07C229/34C07C247/04C07C275/16C08G2230/00C09D175/02
    • Amino acid-based poly(ester urea)s (PEU) are emerging as a class of polymers that have shown promise in regenerative medicine applications. Embodiments of the invention relate to the synthesis of PEUs carrying pendent “clickable” groups on modified tyrosine amino acids. The pendent species include alkyne, azide, alkene, tyrosine-phenol, and ketone groups. PEUs with Mw exceeding 100k Da were obtained via interfacial polycondensation methods and the concentration of pendent groups was varied by copolymerization. The incorporation of derivatizable functionalities is demonstrated using 1H NMR and UV-Vis spectroscopy methods. Electrospinning was used to fabricate PEU nanofibers with a diameters ranging from 350 nm to 500 nm. The nanofiber matricies possess mechanical strengths suitable for tissue engineering (Young's modulus: 300±45 MPa; tensile stress: 8.5±1.2 MPa). A series of bioactive peptides and fluorescent molecules were conjugated to the surface of the nanofibers following electrospinning using bio-orthogonal reactions in aqueous media.
    • 氨基酸基聚(酯尿素)(PEU)正在出现,这些聚合物在再生医学应用中已显示出希望。 本发明的实施方案涉及在修饰的酪氨酸氨基酸上携带侧面的“可点击”基团的PEU的合成。 悬挂物种包括炔烃,叠氮化物,烯烃,酪氨酸 - 苯酚和酮基团。 通过界面缩聚方法得到Mw超过100kDa的PEU,通过共聚改变侧基的浓度。 使用1 H NMR和UV-Vis光谱法证明可衍生化官能度的结合。 使用静电纺丝制造直径范围为350nm至500nm的PEU纳米纤维。 纳米纤维素材具有适用于组织工程的机械强度(杨氏模量:300±45MPa;拉伸应力:8.5±1.2MPa)。 在水性介质中使用生物正交反应进行静电纺丝后,将一系列生物活性肽和荧光分子缀合到纳米纤维的表面。
    • 8. 发明申请
    • Signal modulation
    • 信号调制
    • US20050068885A1
    • 2005-03-31
    • US10676565
    • 2003-09-30
    • Matthew BeckerKarl Wyatt
    • Matthew BeckerKarl Wyatt
    • H04J7/00H04L25/49H04L25/493H03C1/52H04J3/02
    • H04L25/4917H04J7/00H04L25/493
    • According to an embodiment of the invention, a method and apparatus for signal modulation are described. According to an embodiment of the invention, a method comprises producing and transferring a modulated signal. The modulation of the signal is over a plurality of amplitude levels, including at least a first amplitude level, a second amplitude level and a third amplitude level, and over a plurality of time slots, including at least a first time slot, a second time slot, and a third time slot. The modulated signal transitions from the first amplitude level to the second amplitude level in the first phase slot, remains at the second amplitude level in the second time slot, and transitions from the second amplitude level to the third amplitude level in a third time slot.
    • 根据本发明的实施例,描述了用于信号调制的方法和装置。 根据本发明的实施例,一种方法包括产生和传送调制信号。 信号的调制在多个幅度水平上,包括至少第一幅度电平,第二幅度电平和第三幅度电平以及多个时隙,包括至少第一时隙,第二时间 插槽和第三个时隙。 调制信号从第一相位时隙中的第一幅度电平转换到第二幅度电平在第二时隙中保持在第二幅度电平,并且在第三时隙中从第二幅度电平转变到第三幅度电平。
    • 10. 发明授权
    • Path filtering for latch-based systems
    • 基于锁存器的系统的路径过滤
    • US06611949B2
    • 2003-08-26
    • US10007560
    • 2001-11-08
    • Matthew BeckerEileen You
    • Matthew BeckerEileen You
    • G06F945
    • G06F17/5031
    • A method and a system for static timing analysis of a latch-based circuit. A netlist data structure represents the latch-based circuit. The method statically analyzes the netlist data structure and produces timing information for signal paths within the latch-based circuit. The signal paths are filtered using path termination information, which specifies where paths end. The path termination information distinguishes a first signal path that terminates at a latch from a second signal path that flows through that same latch.
    • 一种用于基于锁存器电路的静态时序分析的方法和系统。 网表数据结构表示基于锁存器的电路。 该方法静态分析网表数据结构,并为基于锁存器的电路中的信号路径产生定时信息。 使用路径终止信息来过滤信号路径,该信息指定路径在哪里结束。 路径终止信息区分在锁存器处终止的第一信号路径与流过同一锁存器的第二信号路径。