检索结果-南通市图书馆

The scarab gut： A potential bioreactor for bio-fuel production

在线全文

学校读者我要写书评

暂无评论

Insect Science 2010年第3期17卷 175-183页

作者： sheng-wei huang Hong-Yu Zhang Sean Marshall Trevor A. Jackson State Key Laboratory of Agricultural Microbiology Institute of Urban and Horticultural Pests and Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory College of Plant Science and Technology Huazhong Agricultural University Wuhan China Biocontrol Biosecurity and Bioprocessing AgResearch Limited Christchurch New Zealand

Cellulose and hemicelluloses are the most prevalent sources of carbon in nature. Currently many approaches employ micro-organisms and their enzyme products to degrade plant feedstocks for production of bioenergy. Scarab larvae are one such model. They consume celluloses from a variety of sources including plant roots, soil organic matter and decaying wood, and are able to extract nutrients and energy from these sources. In this paper, we review the physicochemical properties of the scarab larval gut, the diversity and digestive role that microflora play in the scarab gut and discuss the potential for applying these digestive processes in bioreactors for improving bio-fuel production. Scarab larvae are characterised by their highly alkaline midgut which is dominated by serine proteinase enzymes, and a modified hindgut which harbors the majority of the intestinal microbiota under anaerobic conditions. Evidence suggests that digestion of recalcitrant organic matter in scarab larvae likely results from a combination of endogenous gut proteinases and cellulolytic enzymes produced by symbiotic micro-organisms. Most of the easily digestible proteins are mobilized and absorbed in the midgut by endogenous proteinases. The hindgut contents of scarab larvae are characterized by high concentrations of volatile fatty acids, the presence of fermenting bacteria, and typical anaerobic activities, such as methanogenesis. The hindgut typically contains a wide diversity of micro-organisms, some of which appear to be obligate symbionts with cellulolytic potential. As a result, the scarab larval gut can be regarded as a small bioreactor resembling the rumen of sheep or cattle, where solid food particles composed of cellulose, hemicellulose, pectin and polysaccharides are degraded through enzymatic and fermentation processes. Together these observations suggest scarab larvae have potential to assist the bio-fuel industry by providing new sources of （hemi）cellulolytic bacteria and bacteri

关键词： bio-fuel bioreactor cellulolytic enzymes microflora Scarabaeidae

Model on picometer-level light gravitational delay in the GRACE Follow-On-like missions

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Physics B 2024年第11期33卷 82-93页

作者： Jin-Zhuang Dong wei-sheng huang Cheng-Gang Qin Yu-Jie Tan Cheng-Gang Shao MOE Key Laboratory of Fundamental Physical Quantities Measurement & Hubei Key Laboratory of Gravitation and Quantum Physics PGMF and School of PhysicsHuazhong University of Science and TechnologyWuhan 430074China

Laser interferometry plays a crucial role in laser ranging for high-precision space missions such as GRACE(Gravity Recovery and Climate Experiment)Follow-On-like missions and gravitational wave *** such accuracy of modern space missions,a precise relativistic model of light propagation is *** the post-Newtonian approximation,we utilize the Synge world function method to study the light propagation in the Earth’s gravitational field,deriving the gravitational delays up to order c^(−4).Then,we investigate the influences of gravitational delays in three inter-satellite laser ranging techniques,including one-way ranging,dual one-way ranging,and transponder-based *** combining the parameters of Kepler orbit,the gravitational delays are expanded up to the order of e^(2)(e is the orbital eccentricity).Finally,considering the GRACE Follow-On-like missions,we estimate the gravitational delays to the level of *** results demonstrate some high-order gravitational and coupling effects,such as c^(−4)-order gravitational delays and coupling of Shapiro and beat frequency,which may be non-negligible for higher precision laser ranging in the future.

关键词： classical general relativity post-Newtonian approximation phase shifting interferometry

Studies　on　Organophosphorus　Compounds　***_2Ocatalyzed　Reaction　of　Isocyanoacetate　with　1－Oxoalkylphosphonate．A　Novel　Stereoselective　Synthesis　of　β－Phosphoryl　α，β－Dehydroamino　Acid　Derivatives

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 1996年第9期7卷 797-798页

作者： wei sheng huang Yi adn ZHANG and Cheng Ye YUAN(Shanghai Institute of Organic Chemistry,Chinese Academy of Sciences.354 Fenglin Lu.Shanghai 200032) Shanghai Inst. of Organic Chemistry Chinese Academy of Sciences Shanghai 200032 354 Fenglin Lu

Cu2O-Catalyzed reaction of isocyanoacetate with 1-oxoalkylphosphonates afford predominantly Z-α-formylamino-β-phosphoryl-α,β-alkenoate.

关键词：梗梗 Reaction Novel Stereoselective Acid Derivatives Compounds Organophosphorus Synthesis Dehydroamino 桑桑 Cu2Ocatalyzed

STUDIES　ON　ORGANOPHOSPHORUS　COMPOUNDS　88　A　NOVEL　SYNTHESIS　OF　3，4－DIHYDRO－2H－PYRROLE－2－PHOSPHNATE

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 1994年第7期5卷 565-566页

作者： Cheng Ye YUAN and wei sheng huang(Shanghai Institute of Organic Chemistry, Chinese Academy of Science,354 Fenglin Lu, Shanghai 200032)

Cu2O-catalyzed cycloaddition of 1-isocyanoalkylphosphonate to electron-deficient olefins gave 3' 4-dihydro-2H-pyrrole-2-phosphonates.

关键词：

Adjacent segment disease following Dynesys stabilization for lumbar disorders:A case series of mid-and long-term follow-ups

在线全文

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2021年第35期9卷 10850-10860页

作者： Kuan-Ju Chen Chien-Ying Lai Lu-Ting Chiu wei-sheng huang Pang-Hsuan Hsiao Chien-Chun Chang Cheng-Jyh Lin Yuan-Shun Lo Yen-Jen Chen Hsien-Te Chen Department of Orthopedic Surgery China Medical University HospitalTaichung City 404Taiwan Spine Center China Medical University HospitalTaichung City 404Taiwan Management Office for Health Data China Medical University HospitalTaichung City 404Taiwan College of Medicine China Medical UniversityTaichung City 404Taiwan School of Chinese Medicine China Medical UniversityTaichung City 404Taiwan Department of Orthopedic Surgery China Medical University HospitalChina Medical UniversityTaichung City 404Taiwan Spine Center China Medical University HospitalChina Medical UniversityTaichung City 404Taiwan Degree Program of Biomedical Science and Engineering National Chiao Tung UniversityHsinchu City 300Taiwan Department of Biological Science and Technology National Chiao Tung UniversityHsinchu City 300Taiwan Department of Orthopedic Surgery China Medical University Beigang HospitalYunlin County 651Taiwan Graduate Institute of Precision Engineering National Chung Hsing UniversityTaichung City 404Taiwan School of Medicine China Medical UniversityTaichung City 404Taiwan Department of Sport Medicine College of Health CareChina Medical UniversityTaichung City 404Taiwan

BACKGROUND Radiologic adjacent segment degeneration(ASDeg)can occur after spinal *** segment disease(ASDis)is defined as the development of new clinical symptoms corresponding to radiographic changes adjacent to the level of previous spinal *** pre-existing ASDeg is generally considered to result in more severe ASDis;nonetheless,whether the ASDeg status before index surgery influences the postoperative risk of revision surgery due to ASDis warrants *** To identify possible risk factors for ASDis and verify the concept that greater preexisting ASDeg leads to more severe *** Data from 212 patients who underwent posterior decompression with Dynesys stabilization from January 2006 to June 2016 were retrospectively *** who underwent surgery for ASDis were categorized as group A(n=13),whereas those who did not were classified as group B(n=199).Survival analysis and Cox proportional hazards models were used to compare the modified Pfirrmann grade,University of California-Los Angeles grade,body mass index,number of Dynesys-instrumented levels,and *** The mean time of reoperation was 7.22(1.65–11.84)years in group A,and the mean follow-up period was 6.09(0.10–12.76)years in group *** significant difference in reoperation risk was observed:Modified Pfirrmann grade 3 vs 4(P=0.53)or 4 vs 5(P=0.46)for the upper adjacent disc,University of California-Los Angeles grade 2 vs 3 for the upper adjacent segment(P=0.66),age of60 years(P=0.9),body mass index25 kg/m2(P=0.3),and sex(P=0.8).CONCLUSION Greater preexisting upper ASDeg was not associated with a higher rate of reoperation for ASDis after Dynesys *** overweight tended to increase reoperation risk after Dynesys surgery for ASDis.

关键词： Adjacent segment degeneration Adjacent segment disease Degenerative lumbar spondylolisthesis Dynamic stabilization Dynesys Spinal stenosis

STUDIES ON ORGANOPHOSPHORUS COMPOUNDS 86 SOME NEW ASPECTS ON THE SYNTHESIS OF DIALKYL 1-ISOCYANO-BENZYL-AND/OR ALKYL-PHOSPHONATES

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Chemical Letters 1993年第12期4卷 1047-1050页

作者： Cheng Ye YUAN wei sheng huang Zhi Bin YUAN Shanghai Institute of Organic Chemistry,Chinese Academy of Science,345 Lingling Lu,Shanghai,200032

1-Isocyano substituted benzylphosphonates were prepared by dehydration of 1-N-formylamino substituted benzylphosphonates,which were obtained by a tricomponental condensation described by ***- while addition of diethyl phosphite to N-trityl aldimine followed by deprotection,formylation and dehydration gave corresponding 1-isocyano alkylphosphonates in one-pot procedure.

关键词： STUDIES ON ORGANOPHOSPHORUS COMPOUNDS 86 SOME NEW ASPECTS ON THE SYNTHESIS OF DIALKYL 1-ISOCYANO-BENZYL-AND/OR ALKYL-PHOSPHONATES

HPLC-荧光法测定贝伐珠单抗注射液中聚山梨醇酯20的含量

在线全文

学校读者我要写书评

暂无评论

中国生物制品学杂志 2018年第3期31卷 294-298页

作者：赵威郭圣荣黄馨上海交通大学药学院上海200240

目的采用HPLC-荧光法测定贝伐珠单抗注射液中聚山梨醇酯20的含量。方法对HPLC色谱条件进行优化后,检测贝伐珠单抗注射液中聚山梨醇酯20含量,并进行方法的专属性、线性、准确度、精密度、检测限、耐用性验证。用建立的方法检测3批贝伐珠... 详细信息

目的采用HPLC-荧光法测定贝伐珠单抗注射液中聚山梨醇酯20的含量。方法对HPLC色谱条件进行优化后,检测贝伐珠单抗注射液中聚山梨醇酯20含量,并进行方法的专属性、线性、准确度、精密度、检测限、耐用性验证。用建立的方法检测3批贝伐珠单抗注射液中聚山梨醇酯20的含量。结果该方法专属性良好;聚山梨醇酯20浓度在0.20~0.60 mg/mL范围内,线性关系良好,R^2=0.999 9;不同浓度的聚山梨醇酯20溶液检测结果的准确度在98%~100%范围内,RSD为0.8%;精密度各考察项RSD均不高于2%;检测限为0.002 0 mg/mL;耐用性各考察项与原始条件的相对百分比均在100%~102%范围内。3批贝伐珠单抗注射液中聚山梨醇酯20的含量分别为0.40、0.39和0.39 mg/mL,分别为标示量(0.40 mg/mL)的100%、98%和98%。结论建立的HPLC-荧光法快速、准确、可靠,可用于测定贝伐珠单抗注射液中聚山梨醇酯20的含量。

关键词：聚山梨醇酯20 贝伐珠单克隆抗体高效液相色谱荧光法 N-苯基-1-萘胺

Boosting Oxygen Evolution Reaction Performance on NiFe‑Based Catalysts Through d‑Orbital Hybridization

在线全文

学校读者我要写书评

暂无评论

Nano-Micro Letters 2025年第1期17卷 281-292页

作者： Xing Wang wei Pi sheng Hu Haifeng Bao Na Yao wei Luo State Key Laboratory of New Textile Materials and Advanced Processing Technology Key Laboratory of New Textile Materials and Applications of Hubei ProvinceSchool of Materials Science and EngineeringWuhan Textile UniversityWuhan 430200People’s Republic of China College of Chemistry and Molecular Sciences Wuhan UniversityWuhan 430072People’s Republic of China

Anion-exchange membrane water electrolyzers(AEMWEs)for green hydrogen production have received intensive attention due to their feasibility of using earth-abundant NiFe-based *** introducing a third metal into NiFe-based catalysts to construct asymmetrical M-NiFe units,the d-orbital and electronic structures can be adjusted,which is an important strategy to achieve sufficient oxygen evolution reaction(OER)performance in ***,the ternary NiFeM(M:La,Mo)catalysts featured with distinct M-NiFe units and varying d-orbitals are reported in this *** and theoretical calculation results reveal that the doping of La leads to optimized hybridization between d orbital in NiFeM and 2p in oxygen,resulting in enhanced adsorption strength of oxygen intermediates,and reduced rate-determining step energy barrier,which is responsible for the enhanced OER *** critically,the obtained NiFeLa catalyst only requires 1.58 V to reach 1 A cm^(−2) in an anion exchange membrane electrolyzer and demonstrates excellent long-term stability of up to 600 h.

关键词： NiFe-based catalysts d-orbital coupling Oxygen evolution reaction Anion exchange membrane electrolyzer

Challenges in the management of visual and tactile hallucinations in elderly people

在线全文

学校读者我要写书评

暂无评论

World Journal of Psychiatry 2025年第1期15卷 185-188页

作者： Si-sheng huang Division of Geriatric Psychiatry Department of PsychiatryChanghua Christian HospitalChanghua 500Taiwan Department of Post-Baccalaureate Medicine College of MedicineNational Chung Hsing UniversityTaichung 402Taiwan

This letter provides a concise review of the pertinent literature on visual and tactile hallucinations in elderly *** discussion addresses differential diagnoses and potential underlying mechanisms,as well as the psychopathology associated with tactile hallucinations,and emphasizes the necessity for invest-igation into the possibility of coexisting delusional infestation(parasitosis).These symptoms frequently manifest in patients with primary psychotic disorders,organic mental disorders,and substance use *** proposed pathophy-siological mechanisms may involve dopaminergic imbalances and dysfunction of the striatal dopamine transporter.

关键词： Delusional infestation Dementia Haptic hallucination Scratching behavior Tactile hallucination Visual hallucination Alzheimer’s disease