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| 1 | Review of current progress in hole-transporting materials for perovskite solar cells显示文摘Recent advancements in perovskites’ application as a solar energy harvester have been astonishing. The power conversion efficiency(PCE) of perovskite solar cells(PSCs) is currently reaching parity(>25 percent), an accomplishment attained over past decades. PSCs are seen as perovskites sandwiched between an electron transporting material(ETM) and a hole transporting material(HTM). As a primary component of PSCs, HTM has been shown to have a considerable effect on solar energy harvesting, carrier extraction and transport, crystallization of perovskite, stability, and price. In PSCs, it is still necessary to use a HTM.While perovskites are capable of conducting holes, they are present in trace amounts, necessitating the use of an HTM layer for efficient charge extraction. In this review, we provide an understanding of the significant forms of HTM accessible(inorganic, polymeric and small molecule-based HTMs), to motivate further research and development of such materials. The identification of additional criteria suggests a significant challenge to high stability and affordability in PSC. | Prerna Mahajan Bhavya Padha Sonali Verma Vinay Gupta Ram Datt Wing Chung Tsoi Soumitra Satapathi Sandeep Arya | 2022 | Journal of Energy Chemistry2022,31,5: | 3 |
| 2 | Relationship between Oil - Water Interfacial Tension and Oily Soil Removal in Mixed Surfactant Systems 显示文摘 | Sandeep Verma Kumar V V | 1998 | Journal of Colloid and Interface Science1998,207,1: | 1 |
| 3 | Phaseolin: A 47.5kDa protein of red kidney bean ( Phaseolus vulgaris L.) plays a pivotal role in hypersensitivity induction显示文摘 | Sandeep Kumar Alok Kumar Verma Akanksha Sharma Ruchi Roy Dinesh Kumar Giridhar BH Anurag Tripathi Bhushan P. Chaudhari Mukul Das S.K. Jain Premendra D. Dwivedi | 2014 | International Immunopharmacology2014,,1: | 1 |
| 4 | Lumped parameter analytic modeling and behavioral simulation of a 3-DOF MEMS gyro-accelerometer显示文摘A new analytical model of a 3-degree-of-freedom(3-DOF) gyro-accelerometer system consisting of a 1-DOF drive and 2-DOF sense modes is presented. The model constructs lumped differential equations associated with each DOF of the system by vector analysis. The coupled differential equations thus established are solved analytically for their responses in both the time and frequency domains. Considering these frequency response equations, novel device design concepts are derived by forcing the sense phase to zero, which leads to a certain relationship between the structural frequencies, thereby causing minimization of the damping effect on the performance of the system. Furthermore, the feasibility of the present gyro-accelerometer structure is studied using a unique discriminatory scheme for the detection of both gyro action and linear acceleration at their events. This scheme combines the formulated settled transient solution of the gyro-accelerometer with the processes of synchronous demodulation and filtration, which leads to the in-phase and quadrature components of the system's output signal. These two components can be utilized in the detection of angular motion and linear acceleration. The obtained analytical results are validated by simulation in a MATLAB/Simulink environment, and it is found that the results are in excellent agreement with each other. | Payal Verma Sandeep K.Arya Ram Gopal | 2015 | Acta Mechanica Sinica2015,31,6: | 1 |
| 5 | Relationship between Oil-Water Interfacial Tension and Oily Soil Removal in MixedSurfactant Systems 显示文摘 | Verma Sandeep Kumar V V | 1998 | Journal of colloid and interface science1998,207,: | 1 |
| 6 | In vivo -applied functional RNAs as tools in proteomics and genomics research显示文摘 | Michael Famulok Sandeep Verma | 2002 | Trends in Biotechnology2002,,11: | 1 |
| 7 | Root Structure,Distribution and Biomass in Five Multipurpose Tree Species of Western Himalayas显示文摘The tree root distribution pattern and biomass of seventeen year old trees of Grewia optiva, Morus alba, Celtis australis, Bauhinia variegata and Robinia pseudoacacia were studied by excavation method. B. variegata roots penetrated to a maximum depth of 4.78 m, whereas, M. alba roots were found down to 1.48 m depth. Lateral spread was minimum in B. variegata(1.10 m) and maximum in R. pseudoacacia(7.33 m). Maximum root biomass of 6.30 kg was found in R. pseudoacacia and minimum(2.43 kg) was found in M. alba. For four species viz., G. optiva, M. alba, C. australis and R. pseudoacacia, 68%-87% root biomass occurred within top 0-30 cm soil depth, but for B. variegata this was only 45%. The soil binding factor was maximum in G. optiva and minimum in B. variegata. Soil physico-chemical properties also showed wide variation. The study suggests that B. variegata with a deep root system is the most suitable species for plantation under agroforestry systems. R. pseudoacacia and G. optiva with deep root systems, more lateral spread and high soil binding factor are suitable for plantation on degraded lands for soil conservation. | Kartar Singh VERMA Sandeep KOHLI Rajesh KAUSHAL Om Parkash CHATURVEDI | 2014 | Journal of Mountain Science2014,11,2: | 1 |
| 8 | Relationship between oil-wa- ter interfaeial tension and oily soil removal in mixed sur- factant systems 显示文摘 | Sandeep Verma Kumar V V | 1998 | Journal of Colloid and Interface Sci- ence1998,207,1: | 1 |
| 9 | Association studies of catechol- O -methyltransferase ( COMT ) gene with schizophrenia and response to antipsychotic treatment显示文摘 | Meenal Gupta Pallav Bhatnagar Sandeep Grover Harpreet Kaur Ruchi Baghel Yasha Bhasin Chitra Chauhan Binuja Verma Vallikiran Manduva Odity Mukherjee Meera Purushottam Abhay Sharma Sanjeev Jain Samir K Brahmachari Ritushree Kukreti | 2009 | Pharmacogenomics2009,,3: | 1 |
| 10 | Effect of blast inside tunnel on surrounding soil mass,tunnel lining,and superstructure for varying shapes of tunnels显示文摘In this study,a finite element(FE)analysis of shallow tunnels exposed to a blast inside the tunnel,with soil as surrounding medium and a structure at ground level,was performed.The ConWep program,developed by the US Army,was used to simulate blast loading using ABAQUS/Explicit■.Drucker-Prager(D-P)plasticity model,concrete damage plasticity(CDP),and Johnson-Cook(J-C)plasticity models were used to define the behavior of the soil,concrete,and reinforcement,respectively.FE analysis was carried out to compare the damages to the superstructure with variation in the cross-sectional shapes of the tunnel under internal blast loading.Three tunnel shapes(circular,rectangular,and horseshoe cross-sections)were considered in the FE analysis.An explosive of 100 kg TNT was located at the center of the cross-section of the tunnel.The response of the tunnel in terms of displacement and stress at critical locations was computed.The results showed that changes in the cross-section of the tunnel affect the stability of the tunnel,even when keeping all other factors constant.It was observed that the intensity of the stresses was the highest for a rectangular tunnel and lowest for a circular tunnel.Furthermore,it was also determined that the tunnel with a rectangular cross-section experienced the maximum displacement in the reinforced concrete(RC)lining compared with the horseshoe and circular tunnels.The displacement measured at critical structural members of the superstructure was found to be the highest for the tunnel with a rectangular cross-section and lowest for the tunnel with a circular cross-section. | M.D.Goel Shivani Verma Jagriti Mandal Sandeep Panchal | 2021 | Underground Space2021,6,6: | 0 |
| 11 | Brachymetatarsia with accessory navicular in right foot: A rare coincidental finding显示文摘 | Praveen Kumar Pandey Inder Pawar Sandeep Kumar Beniwal Raaghav R. Verma | 2016 | Chinese Journal of Traumatology2016,19,1: | 0 |
| 12 | Studies on induction hardening of powder-metallurgy-processed Fe–Cr/Mo alloys显示文摘Induction hardening of dense Fe–Cr/Mo alloys processed via the powder-metallurgy route was studied. The Fe-3Cr-0.5Mo, Fe-1.5Cr-0.2Mo, and Fe-0.85 Mo pre-alloyed powders were mixed with 0.4wt%, 0.6wt%, and 0.8wt% C and compacted at 500, 600, and 700 MPa, respectively. The compacts were sintered at 1473 K for 1 h and then cooled at 6 K/min. Ferrite with pearlite was mostly observed in the sintered alloys with 0.4wt% C, whereas a carbide network was also present in the alloys with 0.8wt% C. Graphite at prior particle boundaries led to deterioration of the mechanical properties of alloys with 0.8wt% C, whereas no significant induction hardening was achieved in alloys with 0.4wt% C. Among the investigated samples, alloys with 0.6wt% C exhibited the highest strength and ductility and were found to be suitable for induction hardening. The hardening was carried out at a frequency of 2.0 kHz for 2–3 s. A case depth of 2.5 mm was achieved while maintaining the bulk(interior) hardness of approximately HV 230. A martensitic structure was observed on the outer periphery of the samples. The hardness varied from HV 600 to HV 375 from the sample surface to the interior of the case hardened region. The best combination of properties and hardening depth was achieved in case of the Fe-1.5Cr-0.2Mo alloy with 0.6wt% C. | Sandeep Chauhan Vikas Verma Ujjwal Prakash P.C.Tewari Dinesh Khanduja | 2017 | International Journal of Minerals,Metallurgy and Materials2017,24,8: | 0 |
| 13 | 免疫功能正常的脾结核患者可保守治愈:一例报告显示文摘Tuberculosis is a significant health problemin developing countries.Splenic tuberculosis usually occurs as a part of miliary tuberculosis,and ranks third after lung and liver involvement,respectively.Splenic involvement is more common in immunocompromised patients and is very rarely found in immunocompetent patients.Here we report a case of splenic tuberculosis in an immunocompetent patient,which was managed successfully with conservative treatment. | Ashok Kumar VK Kapoor Anu Behari Sandeep Verma | 2018 | Gastroenterology Report2018,6,1: | 0 |
| 14 | Energy-Efcient Transmission Range Optimization Model for WSN-Based Internet of Thing显示文摘With the explosive advancements in wireless communications and digital electronics,some tiny devices,sensors,became a part of our daily life in numerous elds.Wireless sensor networks(WSNs)is composed of tiny sensor devices.WSNs have emerged as a key technology enabling the realization of the Internet of Things(IoT).In particular,the sensor-based revolution of WSN-based IoT has led to considerable technological growth in nearly all circles of our life such as smart cities,smart homes,smart healthcare,security applications,environmental monitoring,etc.However,the limitations of energy,communication range,and computational resources are bottlenecks to the widespread applications of this technology.In order to tackle these issues,in this paper,we propose an Energy-efcient Transmission Range Optimized Model for IoT(ETROMI),which can optimize the transmission range of the sensor nodes to curb the hot-spot problem occurring in multi-hop communication.In particular,we maximize the transmission range by employing linear programming to alleviate the sensor nodes’energy consumption and considerably enhance the network longevity compared to that achievable using state-of-the-art algorithms.Through extensive simulation results,we demonstrate the superiority of the proposed model.ETROMI is expected to be extensively used for various smart city,smart home,and smart healthcare applications in which the transmission range of the sensor nodes is a key concern. | Md.Jalil Piran Sandeep Verma Varun G.Menon Doug Young Suh | 2021 | Computers, Materials & Continua2021,,6: | 0 |
| 15 | Newly identified genetic variant rs2294693 in UNC5CL gene is associated with decreased risk of esophageal carcinoma in the J&K Population–India显示文摘Esophageal cancer is the second most common type of cancer after lung carcinoma in the state of Jammu and Kashmir(J&K).The understanding of genetics in Esophageal cancer development is poor in the state.Genome wide association studies(GWAS)has proved to be unsurpassed tool in identification of new loci associated with different cancers.GWAS in Chinese population has identified SNP rs2294693 present in UNC5CL(UNC-5 Family C-Terminal like)to be associated with non-cardia gastric cancer.We performed a case control association study and genotyped the SNP rs2294693 using Taqman allele discrimination assay in 566 individuals(166 esophageal cancer patients and 400 controls)belonging to the J&K population.A statistically significant protective association with allelic odds ratio of 0.73(0.56–0.94 at 95%CI)and p value=0.016 was observed.This is the first study in relation to esophageal cancer in the Jammu and Kashmir population,so far it has been studied in association with gastric carcinoma in the Chinese population only.The results indicate that the polymorphism rs2294693 is associated with esophageal cancer susceptibility and the mutant(T)allele might be a protective factor for esophageal cancer among Jammu and Kashmir population.Further the functional characterization of the variation is also warranted. | RUCHI SHAH SONALI VERMA AMRITA BHAT GH RASOOL BHAT VARUN SHARMA INDU SHARMA HEMENDER SINGH SANDEEP KAUL EKTA RAI SWARKAR SHARMA | 2021 | BIOCELL2021,45,3: | 0 |