|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Role of live microbial feed supplements with reference to anaerobic fungi in ruminant productivity: A review显示文摘To keep the concept of a safe food supply to the consumers, animal feed industries world over are showing an increasing interest in the direct-fed microbials(DFM) for improved animal performance in terms of growth or productivity. This becomes all the more essential in a situation, where a number of the residues of antibiotics and/or other growth stimulants reach in milk and meat with a number of associated potential risks for the consumers. Hence, in the absence of growth stimulants, a positive manipulation of the rumen microbial ecosystem to enhance the feedstuff utilization for improved production efficiency by ruminants has become of much interest to the researchers and entrepreneurs. A few genera of live microbes(i.e., bacteria, fungi and yeasts in different types of formulations from paste to powder) are infrequently used as DFM for the domestic ruminants. These DFM products are live microbial feed supplements containing naturally occurring microbes in the rumen. Among different DFM possibilities, anaerobic rumen fungi(ARF) based additives have been found to improve ruminant productivity consistently during feeding trials. Administration of ARF during the few trials conducted, led to the increased weight gain, milk production, and total tract digestibility of feed components in ruminants. Anaerobic fungi in the rumen display very strong cell-wall degrading cellulolytic and xylanolytic activities through rhizoid development, resulting in the physical disruption of feed structure paving the way for bacterial action. Significant improvements in the fiber digestibility were found to coincide with increases in ARF in the rumen indicating their role. Most of the researches based on DFM have indicated a positive response in nutrient digestion and methane reducing potential during in vivo and/or in vitro supplementation of ARF as DFM. Therefore, DFM especially ARF will gain popularity but it is necessary that all the strains are thoroughly studied for their beneficial properties to have a confirmed ‘generally regarded as safe' status for ruminants. | Anil K Puniya Abdelfattah Z M Salem Sanjay Kumar Sumit S Dagar Gareth W Griffith Monica Puniya Sreenivas R Ravella Nikhil Kumar Tejpal Dhewa Ravinder Kumar | 2015 | Journal of Integrative Agriculture2015，14，3： | 17 |
| 2 | Pseudoaneurysm of profunda femoris artery following dynamic hip screw fixation for intertrochanteric femoral fracture显示文摘动态新潮的螺丝钉固定是为 intertrochanteric 的内部固定的一个通常执行的过程大腿骨的破裂。跟随起作用的固定的动脉的损害是一个稀罕却严肃的事件。我们在场与一个动态新潮的螺丝钉在 intertrochanteric 骨折的内部固定以后开发了 profunda femoris 动脉的 pseudoaneurysm 的一个病人。诊断被 angiographic 学习证实,它被卷 embolization 成功地对待。 | Shailendra Singh Sumit Arora Ankit Thora Ram Mohan, Sumit Sural Anti Dhal | 2013 | Chinese Journal of Traumatology2013，16，4： | 13 |
| 3 | Treatment options for unstable trochanteric fractures: Screw or helical proximal femoral nail显示文摘Purpose: To compare treatment outcome of screw proximal femoral nail (PFN) system with that of a helical PFN. Methods: The study included 77 patients with closed unstable intertrochanteric fracture classified as AO 31A2 & 31A3, between June 2008 to August 2011. Inclusion criteria were: all mature skeletons above 50 years of age; closed unstable trochanteric fracture classified as AO 31A2 & A3. Exclusion criteria were: immature skeleton, pathological fracture of any cause other than osteoporosis, inability to walk inde- pendently prior to injury. Patients were randomized to 2 treatment groups based on admission sequence. Forty patients were treated with screw PFN and thirty seven were treated with helical PFN. Results: Both groups were similar in respect of time of surgery, blood loss and functional assessment and duration of hospitalization. In screw PFN group 2 patients had superficial wound infection, 1 patient had persistent hip pain and 1 patient had shortening 〉1 cm but 〈2 cm, while in helical PFN group 1 patient had superficial wound infection. Conclusion: Both screw and helical PFN are very effective implants in osteoporotic and unstable trochanteric fractures even in Indian patients where the bones are narrow and neck diameter is small. It is an implant of choice for osteooorotic and unstable trochanteric fractures. | Jeetendra Bajpai Rajesh Maheshwari Akansha Bajpai Sumit Saini | 2015 | Chinese Journal of Traumatology2015，18，6： | 9 |
| 4 | Does a staged treatment of high energy tibial plateau fractures affect functional results and bony union?A case series显示文摘Purpose:Tibial plateau fracture(TPF)is a devastating injury as it shatters lower articular surface of the largest joint.Apart from bony injury,TPF can lead to great soft tissue envelope compromise which affects the treatment plan and outcome.In the present study,clinical results were assessed in cases of high energy TPFs treated in staged manner.Methods:Twenty-three(20 males and 3 females)patients of high energy communited TPFs(Schatzker typeⅤandⅥ)were consecutively treated.1 All the patient had compromise of overlying skin conditions.They were all successively scheduled for staged treatment plan which comprised of application of bridging knee external fixator on the first day of admission and definitive internal fixation after skin and soft tissue overlying the fracture were healed.Schatzker typeⅠ,Ⅱ,ⅢandⅣwere excluded from the study.Primary survey was done and patient who had head injury,chest and abdominal injury,pelvic injury and contralateral limb injury and open fractures were excluded from the study.The patients were also evaluated in terms of wound complications,axial and rotary alignment of limb,fixation failure,articular congruity and range of motion of the knees and post injury employment.Statistical analysis was done using SPSS software.Results:Maximum follow-up period was 13 months.All the fractures were united at final follow-up.Clinical evaluation was done with the Tegner Lysholm knee scoring scale.2 Excellent results were found in 78%cases and good and fair results in 22%cases.There was significant correlation between range of motion and the Tegner Lysholm knee score(p<0.001,Pearson correlation coefficient=0.741).The correlation between the score and the radiographical union duration was significant(p=0.006,Pearson correlation coefficient=-0.554).Conclusion:A staged treatment plan allows healing of soft tissue envelope,with avoidance of dreadful complications such as compartment syndrome and chronic infection.In addition,a staged treatment strategy does not hamper the fracture reduction,bony union and the functional results. | Nilesh Barwar Abhay Elhence Sumit Banerjee Nitesh gahlot | 2020 | Chinese Journal of Traumatology2020，23，4： | 7 |
| 5 | Wind Power Forecasting Using Wavelet Transforms and Neural Networks with Tapped Delay显示文摘With an objective to improve wind power estimation accuracy and reliability,this paper presents Linear Neural Networks with Tapped Delay(LNNTD)in combination with wavelet transform(WT)for probabilistic wind power forecasting in a time series framework.For comparison purposes,results of the proposed model are compared with the benchmark model,different neural networks and WT based models considering performance indices such as accuracy,execution time and R^(2) statistic.For the reliability and proper validation of the proposed model,this paper highlights the probabilistic forecast attributes at different skill tests.The historical data of the Ontario Electricity Market(OEM)for the period 2011–2014 were used and tested for two years from November 2012 to October 2014 with one month moving window considering all seasonal aspects.The experimental results clearly show that the results of the proposed model have been found to be better than others. | Sumit Saroha S.K.Aggarwal | 2018 | CSEE Journal of Power and Energy Systems2018，4，2： | 7 |
| 6 | Comparative assessment of total polyphenols, antioxidant and antimicrobial activity of different tea varieties of Bangladesh显示文摘Objective: To determine the total polyphenol content, antioxidant activity and antibacterial properties of the extracts of different Bangladeshi tea varieties such as flowery broken orange pekoe, broken orange pekoe, red dust and green tea.Methods: Total phenolic and flavonoid contents were determined by Folin–Ciocalteu and aluminum chloride colorimetric assay, respectively.The antioxidant capacity was determined by ferric ion reducing antioxidant power and phosphomolybdenum method.Antibacterial activity was evaluated by disc diffusion method in agar plate and subsequently, the minimum inhibitory concentration was determined by broth dilution method.Results: Total phenolic and flavonoid contents were significantly higher(P < 0.05) in green tea compared to other three black tea varieties.The green tea also showed a higher free radical scavenging and antioxidant activities than all the other tea varieties tested(P < 0.05).In addition, the extracts of all four tea varieties showed inhibitory activity against several pathogenic bacteria and also the same trend of higher antimicrobial activity of green tea than other tea varieties was observed.Conclusions: Taken together, the results of this study demonstrated that Bangladeshi tea,especially the green tea, may act as a substitute for natural antioxidants and as a promising antibacterial agent for beneficial influence in human health. | Yead Morshed Nibir Ahmed Faisal Sumit Anwarul Azim Akhand Nazmul Ahsan Mohammad Shahnoor Hossain | 2017 | Asian Pacific Journal of Tropical Biomedicine2017，7，4： | 6 |
| 7 | L-Proline Catalyzed Solvent-Free Knoevenagel Condensation for the Synthesis of 3-Substituted Coumarins显示文摘当为由有反应甲又的代替的 2-hydroxybenzaldehydes 的 Knoevenagel 冷凝作用的 3 代用品香豆素的环境地良性的合成的有效 organo 催化剂在溶剂下面加重免费条件, L 脯氨酸被利用。 | KARADE, Nandkishor. N. GAMPAWAR, Sumit V. SHINDE, Sandeep. V. JADHAV, Wamanrao. N. | 2007 | Chinese Journal of Chemistry2007，25，11： | 6 |
| 8 | Neuroprotective potential of Quercetin in combination with piperine against 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine-induced neurotoxicity显示文摘1-Methy-4-phenyl-1,2,3,6-tetrahydropyridine(MPTP)is a neurotoxin that selectively damages dopaminergic neurons in the substantia nigra pars compacta and induces Parkinson’s like symptoms in rodents.Quercetin(QC)is a natural polyphenolic bioflavonoid with potent antioxidant and anti-inflammatory properties but lacks of clinical attraction due to low oral bioavailability.Piperine is a well established bioavailability enhancer used pre-clinically to improve the bioavailability of antioxidants(e.g.,Quercetin).Therefore,the present study was designed to evaluate the neuroprotective potential of QC together with piperine against MPTP-induced neurotoxicity in rats.MPTP(100μg/μL/rat,bilaterally)was injected intranigrally on days 1,4 and 7 using a digital stereotaxic apparatus.QC(25 and 50 mg/kg,intragastrically)and QC(25 mg/kg,intragastrically)in combination with piperine(2.5 mg/kg,intragastrically)were administered daily for 14 days starting from day 8 after the 3^(rd) injection of MPTP.On day 22,animals were sacrificed and the striatum was isolated for oxidative stress parameter(thiobarbituric acid reactive substances,nitrite and glutathione),neuroinflammatory cytokine(interleukin-1β,interleukin-6,and tumor necrosis factor-α)and neurotransmitter(dopamine,norepinephrine,serotonin,gamma-aminobutyric acid,glutamate,3,4-dihydroxyphenylacetic acid,homovanillic acid,and 5-hydroxyindoleacetic acid)evaluations.Bilateral infusion of MPTP into substantia nigra pars compacta led to significant motor deficits as evidenced by impairments in locomotor activity and rotarod performance in open field test and grip strength and narrow beam walk performance.Both QC(25 and 50 mg/kg)and QC(25 mg/kg)in combination with piperine(2.5 mg/kg),in particular the combination therapy,significantly improved MPTP-induced behavioral abnormalities in rats,reversed the abnormal alterations of neurotransmitters in the striatum,and alleviated oxidative stress and inflammatory response in the striatum.These findings indicate that piperine can enhance the antioxidant and anti-inflammatory properties of QC,and QC in combination with piperine exhibits strong neuroprotective effects against MPTP-induced neurotoxicity. | Shamsher Singh Sumit Jamwal Puneet Kumar | 2017 | Neural Regeneration Research2017，12，7： | 6 |
| 9 | Toward commercial realization of quantum dot based white light-emitting diodes for general illumination显示文摘We demonstrate the first commercial production–ready white light-emitting diodes(LEDs)for the general illumination market with red colloidal quantum dots(QDs)applied in an on–chip configuration.We show the red QDs with tunable peak emission and narrow full width at half-maximum in combination with a conventional phosphor material can lead to LED conversion efficiency improvements of 5% to 15% over commercial phosphor based LEDs at correlated color temperatures(CCTs)ranging from 5000 to 2700 K.Furthermore,the challenges associated with reliability under high temperature,high blue flux intensity,and high humidity operation have been overcome to meet consumer market requirements.Finally,a demonstrator lamp at 3000 K color temperature and 90 color rendering index(CRI)with QD based LEDs show a larger efficiency gain up to 17%,attributed to the reduced blue LED droop from the lower drive current and the lower heat sink temperature when compared to a standard phosphor based LED lamp output. | KEN TSHIMIZU MARCEL BOHMER DANIEL ESTRADA SUMIT GANGWAL STEFAN GRABOWSKI HELMUT BECHTEL EDWARD KANG KENNETH JVAMPOLA DANIELLE CHAMBERLIN OLEG BSHCHEKIN JYOTI BHARDWAJ | 2017 | Photonics Research2017，5，2： | 5 |
| 10 | Neuroprotective Effect of Chrysophanol as a PI3K/AKT/mTOR Signaling Inhibitor in an Experimental Model of Autologous Blood-induced Intracerebral Hemorrhage显示文摘Objective Intracerebral hemorrhage(ICH)refers to predominant,sporadic,and non-traumatic bleeding in the brain parenchyma.The PI3K/AKT/mTOR signaling pathway is an important signal transduction pathway regulated by enzyme-linked receptors and has many biological functions in mammals.It plays a key role in neuronal metabolism,gene expression regulation,and tissue homeostasis in the healthy and diseased brain.Methods In the present study,the role of the PI3K/AKT/mTOR pathway inhibitor chrysophanol(CPH)(10 mg/kg and 20 mg/kg,orally)in the improvement of ICH-associated neurological defects in rats was investigated.Autologous blood(20µL/5 min/unilateral/intracerebroventricular)mimics ICH-like defects involving cellular and molecular dysfunction and neurotransmitter imbalance.The current study also included various behavioral assessments to examine cognition,memory,and motor and neuromuscular coordination.The protein expression levels of PI3K,AKT,and mTOR as well as myelin basic protein and apoptotic markers,such as Bax,Bcl-2,and caspase-3,were examined using ELISA kits.Furthermore,the levels of various neuroinflammatory cytokines and oxidative stress markers were assessed.Additionally,the neurological severity score,brain water content,gross brain pathology,and hematoma size were used to indicate neurological function and brain edema.Results CPH was found to be neuroprotective by restoring neurobehavioral alterations and significantly reducing the elevated PI3K,AKT,and mTOR protein levels,and modulating the apoptotic markers such as Bax,Bcl-2,and caspase-3 in rat brain homogenate.CPH substantially reduced the inflammatory cytokines like interleukin(IL)-1β,IL-6,and tumor necrosis factor-α.CPH administration restored the neurotransmitters GABA,glutamate,acetylcholine,dopamine,and various oxidative stress markers.Conclusion Our results show that CPH may be a promising therapeutic approach for overcoming neuronal damage caused by the overexpression of the PI3K/AKT/mTOR signaling pathway in ICH-induced neurological dysfunctions in rats. | Kuldeep Singh JADAUN Sidharth MEHAN Aarti SHARMA Ehraz Mehmood SIDDIQUI Sumit KUMAR NaifALSUHAYMI | 2022 | Current Medical Science2022，42，2： | 5 |
| 11 | 天然产物用于癌症化学预防的口服生物利用度问题(英文)显示文摘由于其低毒和易得的特点,天然产物被认为具有成为化学预防药物的巨大潜力。然而,口服生物利用度差的问题限制了许多天然产物在体内发挥其生物效应。本文综述了影响几类重要的化学预防天然产物生物利用度的因素,这些天然产物包括白藜芦醇、姜黄素、黄连素、染料木素、槲皮素、葱蒜属化合物、人参皂甙化合物K等。最新研究数据表明,尽管化学和微生物稳定性也在其中发挥作用,细胞膜透过率、溶解性和代谢是限制天然产物口服生物利用度的主要因素。今后相关研究的一个重要方向是进一步优化天然产物的口服生物利用度,并实现其体内的化学预防和治疗效果。 | 郜嵩 Sumit Basu 杨广义 Arijita Deb 胡明 | 2013 | 化学进展2013，25，9： | 4 |
| 12 | Protease inhibitors:recent advancement in its usage as a potential biocontrol agent for insect pest management显示文摘Plant derived protease inhibitors(PIs)are a promising defensin for crop im-provement and insect pest management.Although agronomist made significant efforts in utilizing PIs for managing insect pests.the potentials of PIs are still obscured.Insect ability to compensate nutrient starvation induced by dietary PI feeding using different strategies,that is,overexpression of PI-sensitive protease,expression of PI-insensitive proteases,degradation of PI,has made this innumerable collection of PIs worthless.A practical challenge for agronomist is to identify potent PI candidates,to limit insect compensatory responses and to elucidate insect compensatory and resistance mechanisms activated upon herbivory.This knowledge could be further efficiently utilized to identify potential targets for RNAi-mediated pest control.These vital genes of insects could be functionally anno-tated using the advanced gene-editing technique,CRISPR/Cas9.Contemporary research is exploiting different in silico and modern molecular biology techniques to utilize PIs in controlling insect pests efficiently.This review is structured to update recent advancements in this field,along with is chronological background. | Sujata Singh Archana Singh Sumit Kumar Pooja Mittal Indrakant K.Singh | 2020 | Insect Science2020，27，2： | 4 |
| 13 | Quantification of organic carbon and primary nutrients in litter and soil in a foothill forest plantation of eastern Himalaya显示文摘The present study was an effort to understand the amount of litter fall and its subsequent decomposition and quantify the release of available nutrients and soil physicochemical characteristics in plantations of four forest tree species(Lagerstroemia parviflora, Tectona grandis, Shorea robusta and Michelia champaca) in the Chilapatta Reserve Forest of the Cooch Behar Wildlife Division in the Terai zone of West Bengal, India. The most litter(5.61 Mg ha^(-1))was produced by T. grandis plantation and the least(4.72 Mg ha^(-1)) by L. parviflora. The material turnover rate to the soil through decomposition from total litter was fastest during the first quarter of the year and subsequently decreased during the next two quarters. The material turnover rate was only 1 year, which indicates that more than90% of the total litter produced decomposed within a year.The available primary nutrient content in litter varied across the four plantations over the year. The plantations generally did not significantly influence the soil physical characteristics but did significantly influence the availability of primary nutrients and organic carbon at two depths(1–15 and16–30 cm) over the year. The availability of soil primary nutrients in the four plantations also increased gradually from the first quarter of the year to the third quarter and then decreased during the last quarter to the same level as in the first quarter of the year at both depths. The availability for soil organic carbon in the plantations followed a similar trend. The amount of litter produced and the material turnover in the soil in the different plantations differed, influencing the nutrient availability and organic carbon at the plantations. The amount of soil organic carbon was highest for T. grandis(2.52 Mg ha^(-1)) and lowest for L. parviflora(2.12 Mg ha^(-1)). Litter is the source of soil organic matter,and more the litter that is produced by the plantations, the higher will be the content and amount of soil organic carbon in the plantation. | Gopal Shukla Nazir A. Pala Sumit Chakravarty | 2017 | Journal of Forestry Research2017，28，6： | 4 |
| 14 | Evaluation of antihyperglycemic and antioxidant activities of Saraca asoca (Roxb.) De Wild leaves in streptozotocin induced diabetic mice显示文摘 | Sunil Kumar Smita Narwal Dinesh Kumar Gurvirender Singh Sumit Narwal Renu Arya | 2012 | Asian Pacific Journal of Tropical Disease2012，，3： | 3 |
| 15 | Intensive care unit complications and outcomes of adult patients with hemophagocytic lymphohistiocytosis: A retrospective study of 16 cases显示文摘AIM To study the management, complications and outcomes of adult patients admitted with hemophagocytic lymphohistiocytosis(HLH) in the intensive care unit(ICU).METHODS We performed a retrospective observational study of adult patients with the diagnosis of 'HLH' admitted to the two academic medical ICUs of Baylor College of Medicine between 01/01/2013 to 06/30/2017. HLH was diagnosed using the HLH-2004 criteria proposed by the Histiocyte Society.RESULTS Sixteen adult cases of HLH were admitted to the medical ICUs over 4 years.Median age of presentation was 49 years and 10(63%) were males. Median Sequential Organ Failure Assessment(SOFA) score at the time of ICU admission was 10. Median ICU length of stay(LOS) was 11.5 d and median hospital LOS was 29 d. Septic shock and acute respiratory failure accounted for majority of diagnoses necessitating ICU admission. Septic shock was the most common ICU complication seen in(88%) patients, followed by acute kidney injury(81%) and acute respiratory failure requiring mechanical ventilation(75%). Nine patients(56%) developed disseminated intravascular coagulation and eight(50%) had acute liver failure. 10 episodes of clinically significant bleeding were observed.Multi system organ failure was the most common cause of death seen in 12(75%)patients. The 30 d mortality was 37%(6 cases) and 90 d mortality was 81%(13 cases). There was no difference in mortality based on age(above or less than 50 years), SOFA score on ICU admission(more than or less than 10),immunosuppression, time to diagnose HLH or direct ICU admission versus floor transfer.CONCLUSION HLH is a devastating disease associated with poor outcomes in ICU. Intensivists need to have a high degree of clinical suspicion for HLH in patients with septic shock/multi system organ failure and progressive bi/pancytopenia who are not responding to standard management in ICU. | Sumit Kapoor Christopher K Morgan Muhammad Asim Siddique Kalpalatha K Guntupalli | 2018 | World Journal of Critical Care Medicine2018，7，6： | 3 |
| 16 | Advances in the design and manufacturing of novel freeform optics显示文摘Freeform optics has become the most prominent element of the optics industry. Advanced freeform optical designs supplementary to ultra-precision manufacturing and metrology techniques have upgraded the lifestyle, thinking, and observing power of existing humans.Imaginations related to space explorations, portability, accessibility have also witnessed sensible in today’s time with freeform optics. Present-day design methods and fabrications techniques applicable in the development of freeform optics and the market requirements are focussed and explained with the help of traditional and non-traditional optical applications. Over the years,significant research is performed in the emerging field of freeform optics, but no standards are established yet in terms of tolerances and definitions. We critically review the optical design methods for freeform optics considering the image forming and non-image forming applications. Numerous subtractive manufacturing technologies including figure correction methods and metrology have been developed to fabricate extreme modern freeform optics to satisfy the demands of various applications such as space, astronomy, earth science, defence,biomedical, material processing, surveillance, and many more. We described a variety of advanced technologies in manufacturing and metrology for novel freeform optics. Next, we also covered the manufacturing-oriented design scheme for advanced optics. We conclude this review with an outlook on the future of freeform optics design, manufacturing and metrology. | Sumit Kumar Zhen Tong Xiangqian Jiang | 2022 | International Journal of Extreme Manufacturing2022，4，3： | 3 |
| 17 | Activity of Angiogenesis Inhibitors in Metastatic Epithelioid Hemangioendothelioma:A Case Report显示文摘This report describes a patient with metastatic epithelioid hemangioendothelioma treated with bevacizumab and nanoparticle albumin-bound paclitaxel.The treatment was well tolerated and led to the stabilization of an aggressive variant of the disease. This case report is the first one that describes the activity of the combination of chemotherapy and bevacizumab in epithelioid hemangioendothelioma.Literature describing the activity of bevacizumab and other agents(thalidomide,lenalidomide,and interferon) believed to possess anti-angiogenic activities is also reviewed. | Sumit Gaur Alireza Torabi Thomas I O'Neill | 2012 | Clinical oncology and cancer resexreh2012，9，2： | 3 |
| 18 | Shallow foundation response variability due to soil and model parameter uncertainty显示文摘Geotechnical 无常可以与实质的 soil-foundation-structure-interaction (SFSI ) 在结构的反应预言起关键作用效果。自从一个土壤基础的行为,系统可以显著地改变它支持的结构的反应,并且因而,几设计决定,识别并且描绘相关参数是极其重要的。而且,为建模要求的当模特儿的途径和参数为反应预言也是极其重要的。现在的工作打算在在干燥的稠密的沙上休息的浅基础结构系统的反应上调查土壤和模型参数无常的效果。SFSI 用 beam-on-nonlinear-winkler-foundation (BNWF ) 被建模概念在在基础下面的土壤被假定是的地方,分离、非线性的元素的一个集会弹簧,缓冲筒和差距元素创作了。浅基础回答上的土壤和模型输入参数的敏感用一阶的秒时刻(FOSM ) 被调查通过拉丁 hypercube 采样的分析和蒙特卡罗模拟技术。在预言浅基础的回答的精确性的度是高度敏感的土壤参数,这被观察了,例如磨擦角度,泊松比率并且砍模量,而非模型参数,例如僵硬紧张比率和春天间距;为可靠 soilfoundation 反应分析显示土壤参数的合适的描述的重要性。 | Prishati RAYCHOWDHURY Sumit JINDAL | 2014 | Frontiers of Structural and Civil Engineering2014，8，3： | 3 |
| 19 | 经皮微创锁定钢板内固定治疗胫骨中下段骨折98例显示文摘目的:探讨经皮微创锁定钢板内固定治疗胫骨中下段闭合性骨折的临床疗效。方法:使用锁定钢板经皮微创技术对闭合性胫骨中下段骨折98例进行闭合复位内固定治疗,术后随访,进行疗效观察与分析。结果:术后平均随访13.2月,除失访1例外,骨折均愈合良好97例,功能恢复正常。结论:锁定钢板经皮微创技术是治疗胫骨骨折的新型生物学微创治疗方法,能够减少手术时间,创伤较小,术中出血少,术后患者康复较快,并发症少,提高了患者治愈率,具有良好的临床效果和进一步推广价值。 | Sumit Chhetri 李五洲 储伟 刘克斌 | 2015 | 长江大学学报(自科版)(下旬)2015，12，4： | 3 |
| 20 | Adaptive Linear Quadratic Regulator for Continuous-Time Systems With Uncertain Dynamics显示文摘In this paper, adaptive linear quadratic regulator(LQR) is proposed for continuous-time systems with uncertain dynamics. The dynamic state-feedback controller uses inputoutput data along the system trajectory to continuously adapt and converge to the optimal controller. The result differs from previous results in that the adaptive optimal controller is designed without the knowledge of the system dynamics and an initial stabilizing policy. Further, the controller is updated continuously using input-output data, as opposed to the commonly used switched/intermittent updates which can potentially lead to stability issues. An online state derivative estimator facilitates the design of a model-free controller. Gradient-based update laws are developed for online estimation of the optimal gain. Uniform exponential stability of the closed-loop system is established using the Lyapunov-based analysis, and a simulation example is provided to validate the theoretical contribution. | Sumit Kumar Jha Shubhendu Bhasin | 2020 | IEEE/CAA Journal of Automatica Sinica2020，7，3： | 3 |
您所在的机构暂未开通此部分的功能，请联系管理员