Results 71 to 80 of about 2,057,274 (187)
Zhongguo youzhi为利用克里藻JNU41高效生产油脂、亚油酸和叶黄素等重要代谢产物，对其进行培养条件的优化及代谢产物积累的评估。采用改良的BG-11（mBG-11）和BBM（mBBM）培养基，设置3组光照强度〔单侧100 μmol/(m2·s)、单侧300 μmol/(m2·s)和双侧300 μmol/（m2·s）〕和6种初始氮浓度（3、6、9、12、15、18 mmol/L）对克里藻JNU41进行培养，并测定其生长曲线、生化组成、总脂产率、脂肪酸组成及叶黄素含量。结果表明：克里藻JNU41在mBBM培养基 ...
洪建，戴晨明，张虎，高保燕，张成武 HONG Jian, DAI Chenming, ZHANG Hu, GAO Baoyan, ZHANG Chengwu
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Compliance in Regulatory Gray Areas: The Case of the Organic Seed Standard
Policy Studies Journal, EarlyView.ABSTRACT Adaptive regulations, designed to balance flexibility with accountability, can embed provisions that unintentionally leave room for firms to shirk on their responsibilities by exploiting flexibility. We call these provisions “regulatory gray areas,” and ask: how should we understand (non‐)compliance in adaptive regulatory settings?
Liza Wood +3 more
wiley +1 more source
Zhongguo youzhi旨在为高含量甘油三酯型鱼油的酶法工业化生产提供参考，以乙酯型鱼油和甘油为底物，采用酶催化酯交换反应制备高含量甘油三酯型鱼油，通过单因素试验确定振荡速度、反应温度、反应时间及加酶量对酯交换反应的影响。在此基础上，采用Box-Behnken设计酯交换反应工艺条件，并结合响应面法（RSM）和人工神经网络（ANN）模型分别对工艺进行优化，通过比较筛选出适宜的工艺优化方法，同时考察了脂肪酶的重复利用性能。结果表明：相较于ANN模型，RSM模型拟合程度更高，实测值与预测值之间误差更小 ...
牛妍1，苗钧魁2，刘小芳2，王西西2，冷凯良2，杨天燕1NIU Yan1,MIAO Junkui2,LIU Xiaofang2,WANG Xixi2, LENG Kailiang2, YANG Tianyan1
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Policy &Internet, Volume 18, Issue 4, December 2026.ABSTRACT This paper examines the practices ordinary social media users employ to influence the content served to them by platform algorithms, and the relationship between these practices and levels of algorithmic literacy. Practices were documented across TikTok, Facebook, Instagram, Twitter (now X), YouTube and Reddit during 65 sessions, conducted as ...
Agata Stepnik, Joanne Gray
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TESOL Journal, Volume 17, Issue 4, December 2026.ABSTRACT Although the Philippines is gaining growing recognition as an effective site for English learning, especially among Japanese and Korean students, critical attention must be paid to the instrumentalization of Filipino instructors and the country, and the racialized discourse and practice.
Aika Ishige
wiley +1 more source
World Food Policy, Volume 12, Issue 2, November 2026.ABSTRACT Agricultural development initiatives in sub‐Saharan Africa have emphasized improved crop varieties as a pathway to food security, resilience, and rural poverty reduction. However, empirical evidence often focuses narrowly on plot‐level outcomes and overlooks whole‐farm effects and the substantial heterogeneity in farmers' management practices,
Kodjo Kondo +4 more
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World Water Policy, Volume 12, Issue 4, November 2026.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
, 1999 一种有机溶剂中微量水的脱除工艺，其特征在于操作过程如下：（１）使有机溶剂通过固定床填料塔中的吸附剂；（２）当吸附剂吸水接近饱和时，将塔内存液放净，真空脱附，然后用干空气吹扫，直至塔出口气中易燃气体浓度在爆炸极限以外；（３）用干热空气使吸附剂在常压下再生；（４）用干冷空气将塔内温度降至常温；上述步骤反复进行。本发明工艺流程简单，操作方便，可使有机溶剂脱水深度低，且分子筛可反复使用，延长了分子筛使用寿命 ...
常彦君 +3 more
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World Water Policy, Volume 12, Issue 4, November 2026.ABSTRACT This paper describes and analyzes recharge practices in Bács‐Kiskun County, Hungary, within what can be categorized as the farmer domain. Such locally embedded aquifer recharge practices remain underexplored in Hungary. Current research and funding largely focus on large‐scale Managed Aquifer Recharge (MAR) interventions emphasizing intended ...
Helen Sundberg, Michael Gilek
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Beyond Evidence: How Framing Shapes Public Health Policies During Health Crises
Policy Studies Journal, Volume 54, Issue 4, November 2026.ABSTRACT Does the level of evidence that accompanies policy action depend on how a problem is framed, and on who frames it? This article examines these questions in the context of health crises. Bridging sociological and equivalence framing theories, it treats frames as preexisting interpretive schemes shared within communities of actors, whose ...
Antoine Claude Lemor, Eric Montpetit
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