Results 11 to 20 of about 1,282,776 (86)
为了提高木材类生物质的酶解率,提出了高温液态水两步预处理的方法。在底物浓度为5%,pH=4.8, 50℃,40FPU/g底物的加酶量下,考察了不同预处理条件对桉木残渣酶解的影响,发现两步预处理后残渣的酶解率明显高于一步预处理后的酶解率,第二步预处理反应温度的升高和时间的延长都可提高残渣的酶解率,而温度的变化对其影响更明显。由于半纤维素和木质素的去除增大了纤维素与酶的接触机会,所以桉木经过180℃ ,20min和240℃,20min的两步高温液态水预处理后,72h的纤维素酶解率可达到97.20 ...
吴创之 +6 more
core +5 more sources
对城市生活垃圾处置前进行有效的预处理,不仅可以减少处理量,提高处理的效果,而且可以回收部分资源性物质。由于垃圾的特性多变及处理方式的不同,统一的处理系统不仅难以达到处理垃圾的要求,而且可能造成不必要的浪费。文章针对垃圾焚的需求以及垃圾的特点,分析了垃圾焚烧炉预处理系统的设计和设计设备参数的确定 ...
田文栋 +4 more
core +2 more sources
ABSTRACT A thermomechanical strategy based on rolling‐annealing cyclic (RAC) was developed to regulate defect architecture and precipitation behavior in a (FeCoCrNi)94Al3Ti3 high‐entropy alloy. Intermediate annealing during rolling enables progressive grain refinement and introduces a high density of twins, stacking faults, and dislocations, forming a ...
Jiale Man +6 more
wiley +1 more source
GHK‐Cu Delays Aging Through the Repair of Mitochondrial Dysfunction
ABSTRACT Althugh glycyl‐L‐histidyl‐L‐lysine copper (GHK‐Cu) shows antiaging potential, its precise molecular mechanisms remain unclear. Using Caenorhabditis elegans (C. elegans) as an in vivo aging model, we observed that GHK‐Cu extended organismal lifespan and improved stress resilience.
Haoquan Yu +8 more
wiley +1 more source
ABSTRACT Biochemical oxygen demand (BOD) remains a core indicator of organic pollution in freshwater monitoring, but its role in water policy and practice is changing as water‐quality assessment moves toward predictive, integrative, and decision‐support approaches.
Isadora Favero Roque Cenci +5 more
wiley +1 more source
Biomass‐Derived Laser‐Induced Graphene: From Precursor Chemistry to Device Integration
ABSTRACT Laser direct writing provides a mask‐free route for converting suitable carbon‐containing precursors into patterned, porous, and conductive laser‐induced graphene (LIG) networks. Although LIG was initially demonstrated mainly using aromatic synthetic polymers, such as polyimide, biomass precursors introduce renewable feedstocks with highly ...
Wanjun Yin +10 more
wiley +1 more source
实验主要研究了氨水/双氧水结合球磨预处理对重组木聚糖酶协同水解大米草的增强效果。首先使用氨水与双氧水预处理大米草,预处理物与原料大米草随后用于球磨。然后将预处理底物分别用于结构表征及木聚糖酶的协同酶解。结果说明氨水结合双氧水预处理能有效脱除大米草中的木质素(63.81%),球磨处理能对纤维素结晶结构有所破坏,两者有效提高木聚糖酶的水解率。而经预处理过的大米草的酶水解物主要成分为木糖(12.54%),木二糖(40.38%),及少量阿拉伯糖(5.50 ...
龙敏南, 刘健, 甘礼惠, 杨旸
core +1 more source
ABSTRACT Common methods of lignocellulose pretreatment (such as acid method, alkali method, and organic solvent method) have been severely restricted in their development due to issues such as harsh reaction conditions, high cost of reagents, and heavy environmental burden.
Weirong Li +9 more
wiley +1 more source
ABSTRACT Magnetic particles coated with carbon shells have been considered as promising electromagnetic wave absorption materials with antibacterial features. However, how to precisely control the monodispersed magnetic nanoparticles on a carbon matrix to manipulate impedance matching and antibacterial performances is still a key challenge.
Xiaofei Li +10 more
wiley +1 more source

