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| 1 | Thermal decomposition and kinetics of plastic bonded explosives based on mixture of HMX and TATB with polymer matrices显示文摘This work describes thermal decomposition behaviour of plastic bonded explosives(PBXs) based on mixture of 1,3,5,7-tetranitro-1,3,5,7-tetrazocane(HMX) and 2,4,6-triamino-1,3,5-trinitrobenzene(TATB)with Viton A as polymer binder. Thermal decomposition of PBXs was undertaken by applying simultaneous thermal analysis(STA) and differential scanning calorimetry(DSC) to investigate influence of the HMX amount on thermal behavior and its kinetics. Thermogravimetric analysis(TGA) indicated that the thermal decomposition of PBXs based on mixture of HMX and TATB was occurred in a three-steps. The first step was mainly due to decomposition of HMX. The second step was ascribed due to decomposition of TATB, while the third step was occurred due to decomposition of the polymer matrices. The thermal decomposition % was increased with increasing HMX amount. The kinetics related to thermal decomposition were investigated under non-isothermal for a single heating rate measurement. The variation in the activation energy of PBXs based on mixture of HMX and TATB was observed with varying the HMX amount. The kinetics from the results of TGA data at various heating rates under non-isothermal conditions were also calculated by Flynn—Wall—Ozawa(FWO) and Kissinger-Akahira-Sunose(KAS)methods. The activation energies calculated by employing FWO method were very close to those obtained by KAS method. The mean activation energy calculated by FWO and KAS methods was also a good agreement with the activation energy obtained from single heating rate measurement in the first step decomposition. | Arjun Singh Tirupati C.Sharma Mahesh Kumar Jaspreet Kaur Narang Prateek Kishore Alok Srivastava | 2017 | Defence Technology(防务技术)2017，13，1： | 8 |
| 2 | Transplantation of engineered exosomes derived from bone marrow mesenchymal stromal cells ameliorate diabetic peripheral neuropathy under electrical stimulation显示文摘Diabetic peripheral neuropathy(DPN)is a long-term complication associated with nerve dysfunction and uncontrolled hyperglycemia.In spite of new drug discoveries,development of effective therapy is much needed to cure DPN.Here,we have developed a combinatorial approach to provide biochemical and electrical cues,considered to be important for nerve regeneration.Exosomes derived from bone marrow mesenchymal stromal cells(BMSCs)were fused with polypyrrole nanoparticles(PpyNps)containing liposomes to deliver both the cues in a single delivery vehicle.We developed DPN rat model and injected intramuscularly the fused exosomal system to understand its long-term therapeutic effect.We found that the fused system along with electrical stimulation normalized the nerve conduction velocity(57.60±0.45 m/s)and compound muscle action potential(16.96±0.73 mV)similar to healthy control(58.53±1.10 m/s;18.19±1.45 mV).Gastrocnemius muscle morphology,muscle mass,and integrity were recovered after treatment.Interestingly,we also observed paracrine effect of delivered exosomes in controlling hyperglycemia and loss in body weight and also showed attenuation of damage to the tissues such as the pancreas,kidney,and liver.This work provides a promising effective treatment and also contribute cutting edge therapeutic approach for the treatment of DPN. | Anamika Singh Alok Raghav Parvaiz Ahmad Shiekh Ashok Kumar | 2021 | Bioactive Materials2021，6，8： | 4 |
| 3 | myocardial 以后梗塞巨人让室的 pseudoaneurysm 与严重的心失败介绍显示文摘 Left ventricle(LV) pseudoaneurysm is a late mechanical complication of myocardial infarction.A giant LV pseudoaneurysm is a rare presentation.We report a case of giant LV pseudoaneurysm in a post-MI patient who presented with gross congestive heart failure.The patient had a successful surgical repair of the aneurysm and had a favorable 3-mo outcome.The imaging modality and surgical treatment of the pseudoaneurysm are discussed. | Rajesh Vijayvergiya Alok Kumar Sandeep S Rana Harkant Singh Goverdhan D Puri Manphool Singhal | 2012 | World Journal of Cardiology2012，4，11： | 3 |
| 4 | Frameworks of Non-Orthogonal Multiple Access Techniques in Cognitive Radio Communication Systems显示文摘Recently,the increasing demand of radio spectrum for the next generation communication systems due to the explosive growth of applications appetite for bandwidths has led to the problem of spectrum scarcity.The potential approaches among the proposed solutions to resolve this issue are well explored cognitive radio(CR)technology and recently introduced non-orthogonal multiple access(NOMA)techniques.Both the techniques are employed for efficient spectrum utilization and assure the significant improvement in the spectral efficiency.Further,the significant improvement in spectral efficiency can be achieved by combining both the techniques.Since the CR is well-explored technique as compared to that of the NOMA in the field of communication,therefore it is worth and wise to implement this technique over the CR.In this article,we have presented the frameworks of NOMA implementation over CR as well as the feasibility of proposed frameworks.Further,the differences between proposed CR-NOMA and conventional CR frameworks are discussed.Finally,the potential issues regarding the implementation of CR-NOMA are explored. | Prabhat Thakur Alok Kumar S Pandit G Singh S N Satashia | 2019 | China Communications2019，16，6： | 3 |
| 5 | Basecatalyzed fast transesterifieation of soybean oil using ultrasonication显示文摘 | Alok Kumar Singh Sandun D Fernando Rafael Hernandez | 2007 | Energy & Fuels2007，21，2： | 1 |
| 6 | Effects of gadolinium addition on the microstructure and mechanical properties of Mg–9Al alloy显示文摘This research aims to study the significance of Gd addition(0wt%–2wt%) on the microstructure and mechanical properties of Mg–9Al alloy. The effect of Gd addition on the microstructure was investigated via X-ray diffraction(XRD), optical microscopy, scanning electron microscopy(SEM), and transmission electron microscopy(TEM). The Mg–9Al alloy contained two phases, α-Mg and β-Mg_(17)Al_(12). Alloying with Gd led to the emergence of a new rectangular-shaped phase, Al_2Gd. The grain size also decreased marginally upon Gd addition. The ultimate tensile strength and microhardness of Mg–9Al alloy increased by 23% and 19%, respectively, upon 1.5wt% Gd addition. We observed that, although Mg–9Al–2.0Gd alloy exhibited the smallest grain size(181 μm) and the highest dislocation density(5.1 × 10^(10) m^(-2)) among the investigated compositions, the Mg–9Al–1.5Gd alloy displayed the best mechanical properties. This anomalous behavior was observed because the Al_2Gd phase was uniformly distributed and present in abundance in Mg–9Al–1.5Gd alloy, whereas it was coarsened and asymmetrically conglomerated in Mg–9Al–2.0Gd. | Lavish Kumar Singh Alok Bhadauria Amirthalingam Srinivasan Uma Thanu Subramonia Pillai Bellambettu Chandrasekhara Pai | 2017 | International Journal of Minerals,Metallurgy and Materials2017，24，8： | 1 |
| 7 | Slip flow of micropolar fluid through a permeable wedge due to the effects of chemical reaction and heat source/sink with Hall and ionslip currents:an analytic approach显示文摘This study focuses on the combined impact of heat source/sink and chemical reaction on slip flow of micropolar fluid through a permeable wedge in the existence of Hall and ion-slip currents.The governing highly non-lincar PDEs were altered into a set of non-linear coupled ODEs by using similarity transformations.Differential transformation method(DTM)has been implemented in transformed ODEs equations.The comparison with previous literatures was performed and the data of this study was found to be in accordance with each other.The analytical solutions for skin-friction coefficients(surface drag forces),Nussclt and Sherwood numbers are depicted through graphs and tables.The study of boundary layer flow over a wedge surface plays an imperative role in the field of aerodynamics,heat exchanger,ground water pollution and geothermal system etc. | Khilap Singh Alok Kumar Pandey Manoj Kumar | 2020 | Propulsion and Power Research2020，9，3： | 1 |
| 8 | Base-catalyzed fast transesterification of soybean oil using ultrasonication显示文摘 | Alok Kumar Singh Sandun D Femando Rafael Hemandez | 2007 | Energy Fuels2007，21，： | 1 |
| 9 | B4显示文摘 | Sushant Jain Alok Kumar Subhasree Mandal Joon Ong Leon Poutievski Arjun Singh Subbaiah Venkata Jim Wanderer Junlan Zhou Min Zhu Jon Zolla Urs H?lzle Stephen Stuart Amin Vahdat | 2013 | ACM SIGCOMM Computer Communication Review2013，，： | 1 |
| 10 | Studies on thermal cracking behavior of residual feedstocks in a batch reactor 显示文摘 | Singh Jasvinder Kumar M M Saxena Alok K | 2004 | Chemical EngineeringScience2004，59，： | 1 |
| 11 | Facile approach to synthesize CuO/reduced graphene oxide nanocomposite as anode materials for lithium-ion battery显示文摘 | Alok Kumar Rai Ly Tuan Anh Jihyeon Gim Vinod Mathew Jungwon Kang Baboo Joseph Paul Nitish Kumar Singh Jinju Song Jaekook Kim | 2012 | Journal of Power Sources2012，，： | 1 |
| 12 | Bacteriocins as antimicrobial and preservative agents in food:Biosynthesis,separation and application显示文摘Emerging evidence shows the trend of using safe and natural preservatives like bacteriocins in food processing.The increasing demand by the food industry to extend keeping quality and prevent spoilage of various food products has appealed for new preservatives and new methods of conservation.Further,to discover the novel spectrum of antimicrobial compounds that could effectively battle food-borne pathogens,bacteriocins have been intensively studied in the last few years.Recently,great attention has been paid to the application of lactic acid-bacterial bacteriocins targeting food spoilage-causing or pathogenic microorganisms with no significant side effects.Different mechanisms of action like pore-formation,retarding cell-wall/nucleic acid/protein synthesis have been proposed and described for diverse bacteriocins.Therefore,the syntheses,purification of bacteriocins in addition to their applications as antimicrobial and preservative agents in food processing are reviewed in detail.The review will also discuss the preservative effect of bacteriocins and their combinations having multiple modes of action(hurdle approach)to reduce the microbial load as well as antimicrobial resistance. | Deepak Kumar Verma Mamta Thakur Smita Singh Soubhagya Tripathy Alok Kumar Gupta Deepika Baranwal Ami R.Patel Nihir Shah Gemilang Lara Utama Alaa Kareem Niamah M´onica L.Ch´avez-Gonz´alez Carolina Flores Gallegos Cristobal Noe Aguilar Prem Prakash Srivastav | 2022 | Food Bioscience2022，46，2： | 1 |
| 13 | Effect of Sintering Temperature and Heating Rate on Crystallite Size,Densification Behaviour and Mechanical Properties of Al-MWCNT Nanocomposite Consolidated via Spark Plasma Sintering显示文摘Powder mixture of ball-milled aluminium and functionalized multi-walled carbon nanotubes was compacted via spark plasma sintering(SPS) to study effects of sintering temperature and heating rate. An increase in sintering temperature led to an increase in crystallite size and density, whereas an increase in heating rate exerted the opposite effect. The crystallite size and relative density increased by 85.0% and 14.3%, respectively, upon increasing the sintering temperature from 400 to 600 °C, whereas increasing the heating rate from 25 to 100 °C/min led to respective reduction by 30.0% of crystallite size and 1.8% of relative density. The total punch displacement during SPS for the nanocomposite sintered at 600 °C(1.96 mm) was much higher than that of the sample sintered at 400 °C(1.02 mm) confirming positive impact of high sintering temperature on densification behaviour. The maximum improvement in mechanical properties was exhibited by the nanocomposite sintered at 600 °C at a heating rate of 50 °C/min displaying microhardness of 81 ± 3.6 VHN and elastic modulus of 89 ± 5.3 GPa. The nanocomposites consolidated at 400 °C and 100 °C/min, in spite of having relatively smaller crystallite size, exhibited poor mechanical properties indicating the detrimental effect of porosity on the mechanical properties. | Lavish Kumar Singh Alok Bhadauria Subhodeep Jana Tapas Laha | 2018 | Acta Metallurgica Sinica(English Letters)2018，31，10： | 0 |
| 14 | Is Regular Probiotic Practice Safe for Management of Sepsis?显示文摘For decades,the gut has been thought to play an important role in sepsis pathogenesis.Sepsis is a serious life-threatening,chronic condition of an infection caused by dysregulated host immune response in most of the intensive care unit patients.Probiotics have dual roles in polymicrobial sepsis i.e.probiotics may induce sepsis in many cases and may prevent its prognosis in many cases.Experimental evidence from both pre-clinical and clinical studies have demonstrated that probiotic therapy ameliorates various inflammatory mediators such as tumor necrosis factor,interleukin-10(IL-10),IL-6,etc.,in septicemia.In addition,probiotic use was also found to reduce the severity of pathological conditions associated with irritable bowel disorder and prevent development of endocarditis in septicemia.On contrary,probiotic therapy in neonatal and athymic adult mice fail to provide any beneficial effects on mortality and sepsis-induced inflammation.Importantly,in few clinical trials probiotic use was found to aggravate sepsis by promoting inflammatory cascade rather than suppressing it.This review discusses various studies regarding the beneficial or harmful effects associated with probiotic therapy in sepsis. | Rishabh Kumar Alok Shiomurti Tripathi Nidhi Sharma Gaaminepreet Singh Lucy Mohapatra | 2022 | Chinese Journal of Integrative Medicine2022，28，2： | 0 |
| 15 | Potential of Essential Oils as Alternative Permeation Enhancers for Transdermal Delivery显示文摘Transdermal drug delivery plays a significant part in the drug delivery system when compared to other routes of drug administration.The function of the stratum corneum(SC)is a barrier.Recently,numerous methods have been thrived to improve the perforation of drugs across the skin.The most effective method is to use enhancers since these agents enhance skin permeability.Natural penetration enhancers like essential oils demonstrate higher enhancement activity and are more widely accepted than synthetic penetration enhancers.High potential in the expansion and interaction with the SC intercellular lipids has led to an increasing interest in these oils as penetration enhancers.This article gives an overview of a few essential oils,including their mode of action and important parameters for permeation improvement.The present work can provide essential oils as alternative enhancers,and this could be useful in transdermal administration. | Jayshree Mahanty Sofi Haamid Rasheed Sudhir Kumar Harjeet Singh Alok Sharma | 2023 | World Journal of Traditional Chinese Medicine2023，9，3： | 0 |
| 16 | Feasibility of one-shot dilation access in the pediatric age group显示文摘Objective To compare sequential fascial dilation(SFD)versus one-shot dilation(OSD)in the pediatric patients undergoing percutaneous nephrolithotomy.Methods The present study is an observational study.The study subjects were divided into two groups.In group 1,renal dilation was done using the SFD and in group 2,renal dilation was done using the OSD.The amount of time exposed to radiation during access to pelvicalyceal system was estimated.Complications,stone free rates,ancillary procedures for residual stones and hospital stay were compared.Modified Clavien-Dindo classification was used for grading the complications.Results Radiation exposure and operative time were less in OSD group(95%confidence interval(CI)3.068 to 14.072,and 2.565 to 12.435,p<0.005).The mean drop of hematocrit was statistically less significant in OSD group(p=0.032).In both groups,complications,stone free rate and hospital stay were statistically insignificant.Conclusions OSD is feasible in the children with reduced radiation exposure and shorter operative time.The outcome was similar to SFD. | Alok Srivastava Krishna Kumar Yadav Anjana Singh Anoop Kumar Srivastava Sanjeet Kumar Singh | 2022 | World Journal of Pediatric Surgery2022，5，1： | 0 |
| 17 | Conservation aquaculture of Ompok bimaculatus (Butter catfish), a near threatened catfish in India显示文摘The butter catfish,Ompok bimaculatus,belonging to the silurid family,is widely regarded as an important food fish for aquaculture diversification in India.Furthermore,the species poses a threat due to habitat degradation and other anthropogenic factors,and has been categorised as“near threatened”,therefore,its culture promotion is warranted.To establish a successful breeding programme,a precise understanding of the life history,and biology(reproductive/feeding)of the fish will assist hatchery managers and researchers.Studies in these areas have been undertaken by several groups over the years,but without much coherence,the data are still fragmented.Few attempts on the culture attributes of this catfish have been performed under both mono-and polyculture systems to bring about parallel promotion through aquaculture in a larger part of the subcontinent.Highlighting this,we have tried to analyse and present a consolidated account of the morphological characteristics,feeding habits,reproductive biology,early developmental ontogeny,and culture potentials of O.bimaculatus in India.This review was also prompted by the paucity of information on the cultural aspects of the species.Additionally,based on the reported studies,future directions and perspectives of the culture promotion of the species are proffered to ensure future research initiatives. | Pradyut Biswas Alok Kumar Jena Soibam Khogen Singh | 2023 | Aquaculture and Fisheries2023，8，1： | 0 |
| 18 | Re-estimation and comparisons of alternative accounting based bankruptcy prediction models for Indian companies显示文摘Background:The suitability and performance of the bankruptcy prediction models is an empirical question.The aim of this paper is to develop a bankruptcy prediction model for Indian manufacturing companies on a sample of 208 companies consisting of an equal number of defaulted and non-defaulted firms.Out of 208 companies,130 are used for estimation sample,and 78 are holdout for model validation.The study reestimates the accounting based models such as Altman EI(Journal of Finance 23:19189-209,1968)Z-Score,Ohlson JA(Journal of Accounting Research 18:109-131,1980)Y-Score and Zmijewski ME(Journal of Accounting Research 22:59-82,1984)X-Score model.The paper compares original and re-estimated models to explore the sensitivity of these models towards the change in time periods and financial conditions.Methods:Multiple Discriminant Analysis(MDA)and Probit techniques are employed in the estimation of Z-Score and X-Score models,whereas Logit technique is employed in the estimation of Y-Score and the newly proposed models.The performance of all the original,re-estimated and new proposed models are assessed by predictive accuracy,significance of parameters,long-range accuracy,secondary sample and Receiver Operating Characteristic(ROC)tests.Results:The major findings of the study reveal that the overall predictive accuracy of all the three models improves on estimation and holdout sample when the coefficients are re-estimated.Amongst the contesting models,the new bankruptcy prediction model outperforms other models.Conclusions:The industry specific model should be developed with the new combinations of financial ratios to predict bankruptcy of the firms in a particular country.The study further suggests the coefficients of the models are sensitive to time periods and financial condition.Hence,researchers should be cautioned while choosing the models for bankruptcy prediction to recalculate the models by looking at the recent data in order to get higher predictive accuracy. | Bhanu Pratap Singh Alok Kumar Mishra | 2016 | Financial Innovation2016，2，1： | 0 |
| 19 | Near-saturated soil hydraulic conductivity and pore characteristics as influenced by conventional and conservation tillage practices in North-West Himalayan region,India显示文摘Tillage plays an important role in modifying soil hydraulic properties.The objective of the present study was to evaluate the effect of conservation tillage practices in a maize-wheat cropping system on nearsaturated soil hydraulic properties and pore characteristics in the North-West Himalayan region,India.Three treatments viz.conventional tillage(CT),minimum tillage(MT),and zero tillage(ZT)were evaluated in terms of field saturated hydraulic conductivity(ks),unsaturated hydraulic conductivity k(h),the inverse of capillary length(a),flow-weighted mean pore radius(r0),numbers of pores per square meter(n0)and water-conducting macroporosity(Ɛ).The above hydraulic conductivity and pore characteristics were derived from steady-state water flux(q)measured using hood infiltrometer at 0,1,and3 cm pressure head for each treatment after seven years of establishment of this tillage experiment.Results revealed significantly(p<0.05)higher values of ks,k(h),a,andƐin ZT as compared with CT.MT had intermediate values.Higher a values suggested a greater gravity-dominated flow under ZT and MT as compared with CT.Analysis of r0 values indicated better connectivity of pores in ZT and MT as compared with CT.Macropore flow suggested that on average pore radii,>0.50 mm conducted about 63.60,68.01,and 75.97%of total flow(at 0 cm pressure head)in the corresponding water-conducting macroporosity of 0.00030,0.00044,and 0.00069%of soil volume under CT,MT,and ZT,respectively.Overall,zero-tillage based agriculture system was found to improve near-saturated soil hydraulic properties. | Deepak Singh Alok Kumar Mishra Sridhar Patra Sankar Mariappan Nisha Singh | 2021 | International Soil and Water Conservation Research2021，9，2： | 0 |
| 20 | Spatial variability of soil hydraulic and physical properties in erosive sloping agricultural fields显示文摘It is essential to minimize soil quality degradation in sloping agricultural fields through stabilization and improvement of soil hydraulic properties using sustainable soil management.This study aimed to analyze the impact of different tillage practices,including conventional tillage(CT),minimum tillage(MT),and zero tillage(ZT),on soil hydraulic conductivity in a sloping agricultural field under maizeewheat rotation.The results showed that the highest runoff volume(257.40 m3),runoff coefficient(42.84%),and soil loss(11.3 t)were observed when the CT treatment was applied.In contrast,the lowest runoff volume(67.95 m3),runoff coefficient(11.35%),and soil loss(1.05 t)were observed when the ZT treatment was adopted.The soil organic carbon and aggregate mean weight diameter were found to be significantly greater(with mean values of 0.79%and 1.19 mm,respectively)with the ZT treatment than with the CT treatment.With the tilled treatments(CT and MT),substantial changes in the saturated soil hydraulic conductivity(ks),near-saturated soil hydraulic conductivity(k),and water-conducting porosity(ε)were observed between two crop seasons.These three soil parameters were significantly higher in the period after maize harvesting than in the wheat growing period.In contrast,no significant difference in these soil parameters was found when the untilled treatment(ZT)was carried out.With regard to the slope positions,ks,k,andεshowed different behaviors under different treatments.The toe slope position showed significantly lower ks andεvalues than the summit and middle slope positions.Of the evaluated tillage practices,ZT was found to be the most promising means to improve the soil hydro-physical properties and effectively reduce surface runoff and soil erosion. | Deepak Singh Alok Kumar Mishra Sridhar Patra Sankar Mariappan Nisha Singh Saswat Kumar Kar | 2023 | Water Science and Engineering2023，16，1： | 0 |
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