Results 31 to 40 of about 2,098,135 (238)
Advancing conservation breeding programs for marine invertebrates
Conservation Biology, EarlyView.Abstract In the face of ecosystem change and biodiversity loss caused by climate change and other stressors, conservation breeding, or captive breeding, with the aim of reintroduction for wild population recovery, is an emerging tool for preventing species’ extinction and rehabilitating ecosystems.
Elora H. López‐Nandam +3 more
wiley +1 more source
Gongye shui chuli, 2015 采用O3/UV/H2O2耦合工艺对成分复杂、可生化性差的兰州某石化企业二级出水进行预处理,分析了不同因素对COD去除率及废水可生化性的影响.结果表明,当O3投加量为62.63 mg/L,UV功率为25 W,照射时间为15 min,n(H2O2)/n(O3)为0.5,原水pH为9时,COD去除率可达29.34%,BOD5/COD可由0.05增加到0.34.此工艺对石化二级出水水质具有明显的改善作用,同时大幅提升了废水的可生化性.
武福平 +6 more
doaj
, 2006 非晶氧化硅用可以作为光致发光及光缆材料,也可以应用于光电子器件设计以及生物分析、生物催化、生物分离的载体等领域。纳米氧化硅由于表面严重的配位不足、大的比表面积以及表面欠氧等特点,表现出极强的活性,很容易和环氧状分子氧起键合作用,可以作为树脂基复合材料的增强剂,使环氧树脂的的强度、韧性、延展性大幅度提高。近年来,人们不断合成了不同形貌的氧化硅纳米结构 ...
周泽广 +4 more
core
Structured machine learning modeling to support conservation of deep‐sea benthic biodiversity
Conservation Biology, EarlyView.Abstract Biodiversity monitoring programs need to deliver accurate, timely, and actionable predictions. To establish a predictive monitoring program for deep‐sea benthos of the Santos Basin, Brazil, we developed a two‐stage structured model that allowed comparison of biodiversity predictions obtained from environmental simulations (2M‐Sim).
Gustavo Fonseca +23 more
wiley +1 more source
Gongye shui chuli, 2014 以微生物的耗氧呼吸速率（OUR）为指标，从废水的可生化性出发，考察了O3与H2O2物质的量比、pH和羟基自由基抑制剂等因素对O3/H2O2氧化工艺提高克林霉素废水可生化性的影响。研究结果表明：O3/H2O2氧化工艺极大地提高了废水的可生化性，在n（H2O2）：n（O3）为0.9、溶液pH为10.5 的条件下，废水OUR能够从0升高到0.45 mg/（g·min），同时还证实在O3/H2O2氧化过程中主要是羟基自由基发挥作用。
刘玥, 龚为进
doaj
, 2009 一种实现可见光光催化降解水中还原性污染物同时生产氢气的方法，在无氧或含氧量小于10.4mmol·dm-3气氛的密闭体系中和可见光光催化剂如氧化钨基光催化剂的存在以及波长为400-800nm的光照射下实现水体中还原性污染物消除的同时生产氢气。其反应温度为0-99℃，反应压力为-1-3个大气压。本发明与传统的光催化分解水相比：氢气的产量有明显增加；可以有效去除还原能力比水强的水体污染物；能够将可见光光能和还原性污染物的能量转化为未来的能源载体氢气的化学能；由于有利用太阳光为光源的背景而易于实现工业化 ...
李文钊, 张向华, 刘 鸿, 徐恒泳
core
Taxonomic and functional diversity of urban bees of the world
Conservation Biology, EarlyView.Abstract Bees play a pivotal role in terrestrial environments. Urbanization can affect these organisms and the ecosystem services they provide. However, knowledge of the global diversity of urban bees is limited. Thus, we summarized data on urban bee species identities and occurrences; compared distributions of all bees with those found in urban ...
João C. F. Cardoso +10 more
wiley +1 more source
, 2009 本文中證實具有混價性質(mixed-valence)的含鎳赤血鹽(nickel(II) hexacyanoferrate)修飾碳糊電極發展成之安培法葡萄糖生化感測器具有很好的選擇性，並有催化雙氧水還原的性質，可發展在低電位操作的葡萄糖生化感測器，有效防止血液中電活性物質的干擾。完成的葡萄糖生化感測器偵測葡萄糖時電流密度 (current density)為0.85mA/(mM×cm2)，線性範圍 (linearity range) 達5.5 mM (correlation coefficient=0 ...
林孟山; 賴榮生; 王俊勝
core
Conservation Biology, EarlyView.Abstract Bycatch in fisheries is one of the most serious threats to pelagic seabirds, causing major population declines. Mitigation measures can reduce bycatch substantially, but many fisheries fail to apply best practices, and seabird mortality remains high.
V. Warwick‐Evans +2 more
wiley +1 more source
Shuitu Baochi Xuebao, 2017 基于室内模拟培养试验，研究改良剂（生物质炭、过氧化钙）对旱地红壤微生物量碳、氮及可溶性有机碳、氮的影响。试验设置4个处理，即CK、Ca（过氧化钙，1.72 g/kg）、C（生物质炭，21.46 g/kg）、C+Ca。结果表明：各处理土壤微生物量碳、氮以及可溶性有机碳具有相同的变化趋势，即前期（3 d内）都增加较快，在第3天达到最大值，随试验进行有所下降，配施效果优于单施。各处理可溶性有机氮在21 d内缓慢增加；第21天时，C+Ca、Ca、C相比CK分别显著增加了62.1%，55.5%，40.9%；35 ...
芮绍云 +7 more
doaj