检索结果-南通市图书馆

Corticoreticular tract lesion in children with developmental delay presenting with gait dysfunction and trunk instability

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2017年第9期12卷 1465-1471页

作者： Yong Min Kwon Jessica rose Ae Ryoung Kim Su Min Son Department of Physical Medicine and Rehabilitation College of Medicine Yeungnam University Department of Orthopedic Surgery College of Medicine Stanford University

The corticoreticular tract （CRT） is known to be involved in walking and postural control. Using diffusion tensor tractography （DTT）, we investigated the relationship between the CRT and gait dysfunction, includ- ing trunk instability, in pediatric patients. Thirty patients with delayed development and 15 age-matched, typically-developed （TD） children were recruited. Fifteen patients with gait dysfunction （bilateral trunk instability） were included in the group A, and the other 15 patients with gait dysfunction （unilateral trunk instability） were included in the group B. The Growth Motor Function Classification System, Functional Ambulation Category scale, and Functional Ambulation Category scale were used for measurement of functional state. Fractional anisotropy, apparent diffusion coefficient, fiber number, and tract integrity of the CRT and corticospinal tract were measured. Diffusion parameters or integrity of corticospinal tract were not significantly different in the three study groups. However, CRT results revealed that both CRTs were disrupted in the group A, whereas CRT disruption in the hemispheres contralateral to clinical mani- festations was observed in the group B. Fractional anisotropy values and fiber numbers in both CRTs were decreased in the group A than in the group TD. The extents of decreases of fractional anisotropy values and fiber numbers on the ipsilateral side relative to those on the contralateral side were greater in the group B than in the group TD. Functional evaluation data and clinical manifestations were found to show strong correlations with CRT status, rather than with corticospinal tract status. These findings suggest that CRT status appears to be clinically important for gait function and trunk stability in pediatric patients and DTT can help assess CRT status in pediatric patients with gait dysfunction.

关键词： nerve regeneration corticoreticular tract corticospinal tract gait trunk diffusion tensor Trunk Control Measurement Scale Functional Ambulation Category Growth Motor Function Classification System cerebral palsy motor neural regeneration

Recent advances in flexible batteries:From materials to applications

在线全文

学校读者我要写书评

暂无评论

Nano Research 2023年第4期16卷 4821-4854页

作者： Fuwei Xiang Fang Cheng Yongjiang Sun Xiaoping Yang Wen Lu rose Amal Liming Dai College of Chemical Science and Engineering Yunnan UniversityKunming 650091China Institute of Energy Storage Technologies Yunnan UniversityKunming 650091China Australian Carbon Materials Centre(A-CMC) School of Chemical EngineeringUniversity of New South WalesSydneyNSW 2052Australia

Along with the rapid development of flexible and wearable electronic devices,there have been a strong demand for flexible power sources,which has in turn triggered considerable efforts on the research and development of flexible *** ideal flexible battery would have not only just high electrochemical performance but also excellent mechanical ***,battery constituent components,chemistry systems,device configurations,and practical applications are all pivotal aspects that should be thoroughly ***,we systematically and comprehensively review the fundamentals and recent progresses of flexible batteries in terms of these important ***,we first discuss the requirements for constituent components,including the current collector,electrolyte,and separator,in flexible *** then elucidate battery chemistry systems that have been studied for various flexible batteries,including lithium-ion batteries,non-lithium-ion batteries,and high-energy metal *** is followed by discussions on the device configurations for flexible batteries,including onedimensional fiber-shaped,two-dimensional film-shaped,and three-dimensional structural ***,we summarize recent efforts in exploring practical applications for flexible *** challenges and future opportunities for the research and development of flexible batteries are also discussed.

关键词： flexible batteries flexible power sources wearable electronics electrochemistries battery applications

Gas Quenching during Age Hardening of the Aluminium Casting Alloy Al-7Si-0.3Mg

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

材料热处理学报 2004年第5期25卷 498-501页

作者： A. rose O. Kessler F. Hoffmann H.W. Zoch Stiftung Institutfttr Werkstofftechnik Bremen GermanyStiftung Institutfttr Werkstofftechnik Bremen GermanyStiftung Institutfttr Werkstofftechnik Bremen GermanyStiftung Institutfttr Werkstofftechnik Bremen Germany

For quenching of age hardenable aluminium alloys today predominantly aqueous quenching media are used, which can lead due to the Leidenfrost phenomenon to a non-uniform cooling of the parts and thus to thermal stresses. Particularly at thin-walled or complex shaped parts local plastic deformations can occur by the uneven thermal stresses. In relation to the conventional quenching procedures in aqueous media, gas quenching exhibits a number of technological, ecological and economical advantages. In comparison to liquid quenching media, gas does not change its phase during quenching. Moreover, the cleaning problem of the parts can be avoided. The quenching intensity can be adjusted by the variable parameters gas pressure and gas speed as well as the kind of gas and thus can be adapted to the requirements of the alloy. By the higher uniformity and the better reproducibility, gas quenching offers a high potential to reduce distortion. The goal of these investigations is to clarify, if the cooling rate during gas quenching is sufficient to obtain the specific required strength after age hardening of the alloy Al-7Si-0.3Mg. For this purpose different tests in high-pressure gas quenching facilities, gas nozzle fields and water quenching baths were performed.

关键词：气体流淬火铝合金 Al-7Si-0.3Mg 沉淀硬化机械性质

Performance analysis of lobed nozzle ejectors for high altitude simulation of rocket engines

在线全文

学校读者我要写书评

暂无评论

International Journal of Modeling, Simulation, and Scientific Computing 2014年第4期5卷 139-157页

作者： J.Bruce Ralphin rose J.Veni Grace Department of Aeronautical Engineering Regional Centre of Anna University Tirunelveli India627007

Ejectors are used in high altitude testing of rocket engines to create vacuum for simulat-ing the engine test in vacuum *** performance of an ejector plays a vital role in creating vacuum at the exit of the engine nozzle and the nozzle design exit pressure at the time of ***,the performance of ejectors has to be improved to reduce the consumption of active *** this investigation,the performance of an ejector has been improved by changing the exit shear plane of the ***,conical nozzles are used for creating the required *** of 4 no’s,6 no’s and 8 numbers for an equivalent area ratio=5.88 are used to increase the shear *** influence of shear plane variation in the suction pressure is studied by a detailed CFD analysis.

关键词： High altitude testing lobed nozzles ejector performance thrust augmentation

The Development of the Chinese Outbound Tourist Destinations in the Democratic Republic of the Congo

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

The Development of the Chinese Outbound Tourist Destinations...

作者： Kibani Yakonyo rose 河北大学

学位级别：硕士

The present study is conducted between the Democratic Republic of Congo（DR Congo）and the People’s Republic of China（PRC）;it talks about the development of the tourist destination of Chinese to *** aim was to stand out some strategies for the tourism sector to influence the development and promotion of a Congolese tourist *** analyzes several points,including the causes of underdevelopment of the Congolese tourist destination,the arrival of Chinese tourists in ***,the reason for their trip,the quality of tourist service in the Congo,obtaining visas,opinions of the Chinese on their visit to the *** purpose of this analysis was to make an inventory of the Congolese tourist destination and highlight the causes that make its destination less developed,have knowledge of its strengths and weaknesses as well as the opportunities to be made for its improvement and its *** report provided by the Congolese National Tourist Office for the year 2015 shows that the Chinese do indeed go to the *** study also revealed that the Chinese go to the Congo but their associates there are more for reasons other than tourist reasons which is also too weak,because most do not leave for the tourists rather for other *** later identified Congo’s difficulties in developing its tourism industry,including insecurity in other sectors,political and economic instability,not good infrastructure,the lack of accessibility of certain tourist sites,less attractive *** achieve our results,we used different methods,including the qualitative and quantitative method,followed by the documentary analysis that helped us to consult documents,newspapers,scientific works,books and internet *** methods were accompanied by the technique of data collection by means of survey *** the promotion of the Congolese tourist destination,the following strategic orientations have been proposed:Dispose of transport infrastructure,improv

关键词：

Emerging material engineering strategies for amplifying photothermal heterogeneous CO_(2)catalysis

同方学位论文库评论

在线全文

同方学位论文库

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2021年第8期30卷 108-125,I0004页

作者： Bingqiao Xie Emma Lovell Tze Hao Tan Salina Jantarang Mengying Yu Jason Scott rose Amal Particles and Catalysis Research Group School of Chemical EngineeringThe University of New South Wales2052 SydneyAustralia Department of Chemistry Faculty of Science Kyushu UniversityMoto-oka744 Nishi-ku819-0395 FukuokaJapan

Closing the carbon loop,through CO_(2)capture and utilization,is a promising route to mitigate climate *** energy is a sustainable energy source which can be exploited to drive catalytic reactions for utilizing CO_(2),including converting the CO_(2)into useful *** energy can be harnessed through a range of different pathways to valorize CO_(2).Whilst using solar energy to drive CO_(2)reduction has vast potential to promote catalytic CO_(2)conversions,the progress is limited due to the lack of understanding of property-performance relations as well as feasible material engineering ***,we outline the various driving forces involved in photothermal CO_(2)*** heat from solar energy can be utilized to induce CO_(2)catalytic reduction reactions via the photothermal ***,solar energy can act to modify reaction pathways through light-matter ***-induced chemical functions have demonstrated the ability to regulate intermediary reaction steps,and thus control the reaction *** catalyst structures and specific catalyst design strategies are discussed in this *** review provides a comprehensive understanding of the heat-light synergy and guidance for rational photothermal catalyst design for CO_(2)utilization.

关键词： CO_(2)reduction Photothermal catalysis Material engineering strategies Plasmonic photocatalysis

Wafer-scale quasi-layered tungstate-doped polypyrrole film with high volumetric capacitance

在线全文

学校读者我要写书评

暂无评论

Nano Research 2023年第4期16卷 4895-4900页

作者： Huabo Liu Jiaxing Liang John Watt Richard D.Tilley rose Amal Da-Wei Wang School of Chemical Engineering University of New South WalesSydneyNSW 2052Australia 2 Center for Integrated NanotechnologiesLos Alamos National LaboratoryLos AlamosNW 87545USA 3 School of ChemistryUniversity of New South WalesSydneyNSW 2052Australia

Layered materials are particularly attractive for supercapacitors because of their unique physical,electrical and chemical ***,we demonstrate a facile and scalable electrochemical deposition method for wafer-scale synthesis of quasilayered tungstate-doped polypyrrole films(named TALPy)with controllable thickness and *** as-prepared TALPy film exhibits a high gravimetric density and excellent volumetric capacitance,exceeding many high-performing carbon-and polymerbased film *** on combined results of ex-situ X-ray diffraction(XRD),Raman and X-ray photoelectron spectroscopy(XPS),it is determined that TALPy stores charge through an ion intercalation process accompanied by change in oxidation states of polypyrrole backbone,which is referred as intercalation *** these results suggest the great promise of electrochemical deposition as a scalable and controllable bottom-up approach for synthesizing quasi-layered conductive organic-inorganic hybrid films for electrochemical energy storage applications with high volumetric performance.

关键词： electrochemical deposition conductive polymer polypyrrole organic-inorganic hybrid supercapacitor intercalation pseudocapacitance

HPV/HBV or HPV/HCV Co-Infections in Women Treated for Chronic Hepatitis at Hôpital Saint Camille in Ouagadougou, Burkina Faso

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

American Journal of Molecular Biology 2024年第1期14卷 1-12页

作者： Estelle Ouédraogo Théodora Mahoukèdè Zohoncon Bagora Bayala Prosper Bado rose P. Clémence Da Rogomenoma Alice Ouedraogo Ina Marie Angèle Traoré Punya Akouélé Kuassi-Kpede Samiratou Ouédraogo Essi Etonam Dovo Lassina Traoré Albert Théophane Yonli Florencia Wendkuuni Djigma Olga Mélanie Lompo Jacques Simpore Laboratory of Molecular Biology and Genetics (LABIOGENE) University Joseph KI-ZERBO Ouagadougou Burkina Faso Centre of Biomolecular Research Pietro Annigoni (CERBA) Ouagadougou Burkina Faso Hô spital Saint Camille of Ouagadougou (HOSCO) Ouagadougou Burkina Faso Faculty of Health University Saint Thomas d’Aquin (USTA) Ouagadougou Burkina Faso Ecole Normale Supérieure Koudougou Burkina Faso Chair “Research and Action Against Cancer” Département de Santé Publique Training and Research Unit in Health Sciences University Joseph KI-ZERBO Ouagadougou Burkina Faso Observatoire National de la Santé de la Population Institut National de Santé Publique Ouagadougou Burkina Faso The Department of Epidemiology Biostatistics and Occupational Health School of Population and Global Health Montreal Canada Laboratory of Pathological Anatomy and Cytology University Joseph KI-ZERBO Ouagadougou Burkina Faso

Introduction: Cervical cancer is a public health concern and is mainly caused by Human papillomaviruses (HPV). In many parts of the world, studies are being carried out to understand the different genotypes to better tackle this issue. We conducted a study to determine the prevalence of HPV genotypes in women with chronic hepatitis B or C infection, co-infected or not with HIV, treated at the Hôpital Saint Camille in Ouagadougou (Burkina Faso). Methods: This study was conducted from April to July 2023, including 100 women in gastroenterology at Hôpital Saint Camille. A questionnaire on their socio-demographic and life style was administrated;and endocervical samples were collected using sterile swabs and then sent to Centre of Biomolecular Research Pietro Annigoni (CERBA). HPV molecular detection and genotyping were performed by PCR and hybridization using the HPV Direct Flow Chips kit. Data were analysis using chi square test or Fischer’s exact test with a significance threshold for p Results: The prevalence of HPV infection was 28% (28/100) on the sample of women tested. The most frequent genotypes were HPV 52 (8.33%), followed by HPV 18 and 68 (6.25% each) for high-risk HPVs, and HPV 6, 44/55 and 62/81 (8.33% each) for low-risk HPVs. Conclusion: This study, the first of its kind in Burkina Faso on this group of the population, reveals that the most frequent genotypes found in this study are not included in the vaccine available in Burkina Faso (Gardasil®4).

关键词： Human Papillomavirus Cervical Cancer Hepatitis Human Immunodeficiency Virus Burkina Faso

Processes for the valorization of food and agricultural wastes to value‑added products:recent practices and perspectives

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Systems Microbiology and Biomanufacturing 2022年第1期2卷 50-66页

作者： Anna Kover Doris Kraljić rose Marinaro Eldon R.Rene Department of Water Supply Sanitation and Environmental EngineeringIHE Delft Institute for Water EducationWestvest 72601 DA DelftThe Netherlands

Biorefneries contribute to a circular bioeconomy using renewable feedstock to produce commodity and specialty chemicals as an alternative to petroleum *** waste streams such as food waste and agricultural waste as a feedstock for biorefneries is a promising approach for obtaining value-added products in an economically feasible and sustainable *** conversion of biomass to chemicals ofers diverse opportunities but poses new technological *** paper aims to review the current state of food and agricultural waste valorisation by giving a brief technical overview,summarizing the current state of the bio-based market,and identifying the current barriers to scaling-up *** lignocellulosic biomass in biorefneries calls for pre-treatment due to its complex structure,in which biomass is broken into monosaccharides,building blocks of value-added *** state of the art technologies for lignocellulose pre-treatment is introduced in the review followed by a brief explanation of the role of the hydrolysis and *** economic aspect of chemical production from biomass waste at an industrial scale is also introduced by giving an overview of some recent techno-economic studies.

关键词： Biorefnery Food waste Biomass valorisation Platform chemicals Circular bioeconomy