Results 21 to 30 of about 1,471 (166)
Study on reductive amination of biobased levulinic acid [PDF]
乙酰丙酸是重要的生物基平台化合物,其转化利用受到科研工作者的广泛关注。乙酰丙酸的还原胺化是制备高附加值乙酰丙酸胺化衍生产品的重要途径,近年来成为研究的热点。本论文建立了无催化剂乙酰丙酸还原胺化的反应体系,探讨了乙酰丙酸还原胺化合成直链氨基酸4-二甲氨基戊酸(4-DAPA)和环状化合物5-甲基-2-吡咯烷酮(5-MeP)的反应途径。 首先,研究了以N,N-二甲基甲酰胺为胺源,在无催化剂条件下直接还原胺化乙酰丙酸合成新型化合物4-二甲氨基戊酸(4-DAPA)的反应途径。在200℃条件下反应4h,4 ...
王彦钧
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ABSTRACT Background Chronic cases of canine otitis externa (OE) often develop infections with Pseudomonas aeruginosa (PA). Given the organism's high level of resistance, veterinary surgeons often turn to compounded solutions. Limited data describing the stability and potency of compounded ceftazidime (CAZ) solutions are available, which may affect ...
McKenna Snidow +6 more
wiley +1 more source
Accumulation Characteristics and Hydrological Effects of Litter in Mixed Robinia pseudoacacia Plantations [PDF]
[Objective] Studying the accumulation characteristics and hydrological effects of typical mixed Robinia pseudoacacia plantations is crucial for deeply investigating the water conservation capacity of artificial forests on the Loess Plateau.
CAO Zetao +5 more
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Domain‐adaptation‐based named entity recognition with information enrichment is proposed for developing an equipment fault knowledge graph. A question answering application of the equipment fault knowledge graph is proposed. Abstract Numerous files, such as records and logs, are generated in the process of equipment diagnosis and maintenance (D&M ...
Dengrui Xiong +3 more
wiley +1 more source
Characteristics of Root Systems of the Main Tree Species in The Semiarid Area of Western Liaoning Province, China [PDF]
中国遼寧省阜新県における木本植物15種を対象にして,掘り取り調査により根系の分布特徴および現存量を調査した。その結果,乾燥環境において耐乾性がある樹木の根系はさまざまな形で発達していることが分かった。樟子松,油松,赤松,モンゴリナラ,チョウセントネリコおよびコツギグリアは主根が深く伸長し,側板も発達し,細根が多いことから,深根型耐乾樹種といえる。コノテガシワ,オオミノニレおよびマンシュウイタヤは主根が浅いが,側根が広範に発達し,細根の量が多いから,浅根型耐乾樹種といえる ...
劉, 琪璟 +4 more
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Topical and transdermal botanical formulations of the Chinese pharmacopoeia—A review
Abstract In pharmaceutics, ingredients are classified as active ingredients and excipients. In topical/transdermal phytomedicines, an ingredient may serve both functions. Published information on these dual‐purpose ingredients and their pharmacological relevance is limited.
Jingyi Gu +3 more
wiley +1 more source
本テキストは、「第19回日本古典籍講習会(2021年度)」(2021/7/6-8:国文学研究資料館、国立国会図書館共催 ...
国⽴国会図書館収集書誌部資料保存課和装本保存係
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Background – Supplementation of polyunsaturated fatty acids (PUFA) enables dose reduction of prednisolone and ciclosporin in canine atopic dermatitis (cAD). Objective – To determine if oral administration of PUFA can reduce the dose of oclacitinib for cAD. Conclusion – Oral supplementation of PUFA allowed dose reduction of oclacitinib and improved pVAS,
Laura Schäfer, Nina Thom
wiley +1 more source
Population Structure Characteristics and Survival Status of Natural Platycladus Orientalis in Loess Hilly Region [PDF]
[Objective] Population structure characteristics and survival status of natural Platycladus orientalis in the loess hilly region were determined in order to provide a scientific basis for high-quality and sustainable development of forest grassland in ...
Gu Zhonghou +8 more
core +1 more source
Analysis on hot briquetting mechanism of biomass fuel pellets [PDF]
Under the carbon peaking and carbon neutrality strategy, biomass has attracted much attention due to its characteristics of regeneration, low pollution and zero carbon emissions.
Bangyong LÜ +10 more
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