|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 胰腺导管腺癌放射学报告模板:腹部放射协会和美国胰腺协会的共识声明显示文摘胰腺导管腺癌(PDA)是一种具有侵袭性、死亡率高的恶性肿瘤。在肿瘤分期时,通过影像学分析,合理判定肿瘤的范围,是患者治疗措施中最重要的步骤之一。考虑到不同医生在专业知识水平和疾病严重程度的判定有所差异,以及在放射学检查时经常缺乏相关影像学表现的完整报道,有必要采用标准化的影像学报告模板以及大家一致接受和认可的胰腺实性肿瘤术语。在腹部放射协会和美国胰腺协会的共同资助下,胰腺导管腺癌(PDA)多机构专家组(包括放射学专家、胃肠病学和肝胆胰外科学专家)共同发起了一份描述标准化报告模板的共识声明。采用这种标准化的影像学报告模板将能改进PDA患者的治疗决策过程,并可通过提供一份完整、相关、精准的疾病分期报告以优化治疗方案。通过对可行手术切除的患者恰当、一致的分期,标准化报告模板有助于促进临床和科研实验设计,从而实现在不同机构之间的实验结果的比较。 | Mahmoud M.Al-Hawary Isaac R.Francis Suresh T.Chari Elliot K.Fishman David M.Hough David S.Lu Michael Macari Alec J.Megibow Frank H.Miller Dushyant V.Sahani Diane M.Simeone 黄翔 孙灿辉 | 2014 | 影像诊断与介入放射学2014,23,4: | 52 |
| 2 | Relationship between T-lymphocyte cytokine levels and sero-response to hepatitis B vaccines显示文摘AIM: To investigate the cellular defects by analyzing the (Th1/Th2) cytokine levels in vaccine responders and non-responders. METHODS: Peripheral blood mononuclear cell (PBMC) from responders and non-responders were stimulated with or with out recombinant HBsAg or PHA. Broad spectrum of cytokines viz (Th1) IFN-γ, IL-2, TNF-α, IL-12 and (Th2) IL-10, IL-4 were measured after in vitro stimulation with recombinant HBsAg and were compared with respective antibody titers. RESULTS: A significant decrease (P = 0.001) in Th1 and Th2 cytokines namely, IL-2, INF-γ, TNF-α and IL-10in non-responders was observed. The level of IL-4 was not significant between the three groups. Furthermore, despite a strong Th1 and Th2 cytokine response, the level of IL-12 was elevated in high-responders compared to other groups (P = 0.001) and demonstrated a positive correlation with anti-HBs titers and Th1 cytokine response. CONCLUSION: Our findings suggest that unrespon-siveness to recombinant hepatitis B vaccines (rHB) is multifactorial, including specific failure of antigen presentation or the lack of both T helper Th1 and Th2 response. | Vijayakumar Velu Shanmugam Saravanan Subhadra Nandakumar Esaki Muthu Shankar Appasamy Vengatesan Suresh Sakharam Jadhav Prasad Suryakant Kulkarni Sadras Panchatcharam Thyagarajan | 2008 | World Journal of Gastroenterology2008,14,22: | 22 |
| 3 | Phytotoxicity of cadmium on protein, proline and antioxidant enzyme activities in growing Arachis hypogaea L. seedlings显示文摘种 Arachis hypogaea L 上的镉的植物毒性。幼苗被学习。种子暴露于 25, 50,和 100 μ m ol/L CdCl2 集中,为 10, 15, 20 和 25 d 的一个时期。叶绿素,蛋白质,脯氨酸,硝酸盐和亚硝酸根 reductase 的损坏的程度,在叶子和根的抗氧化剂酶活动在镉应力的 10 d 以后被评估。镉(100 μ m ol/L ) 的更高的集中结果(叶子和根) 总计叶绿素 91.01% ,蛋白质 79.51% , 83.61% ,硝酸盐还原酶 79.39% , 80.72% 并且亚硝酸根 reductase 77.07% , 75.88% 活动随镉集中和暴露时期的增加减少了。镉在抗氧化的酶的活动引起了重要变化。 Contrastingly , Cd 对待显示出的植物组织脯氨酸159.87%的增加,239.6%, gluthion reductase ( GR )337.72%,306.14%,超级氧化物 disumutase (草皮)688.56%,381.72%, ascorbate 过氧化物酶( APX )226.47%,252.14%,过氧化物酶(邮政部门)72.19%,60.29%并且过氧化氢酶(猫)228.96%,214.74%同样与控制相比。镉应力在植物种类的叶子和根处于草皮活动的率引起了重要增加。结果显示出庄稼 A。hypogaea 甚至在很低的镉集中是高度敏感的。 | N Dinakar P C Nagajyothi S Suresh Y Udaykiran T Damodharam | 2008 | Journal of Environmental Sciences2008,20,2: | 20 |
| 4 | Use of antibiotics in broiler production:Global impacts and alternatives显示文摘Antibiotics are used to fight bacterial infections.However, a selective pressure gave rise to bacteria resistant to antibiotics.This leaves scientists worried about the danger to human and animal health.Some strategies can be borrowed to reduce the use of antibiotics in chicken farms.Much research has been carried out to look for natural agents with similar beneficial effects of growth promoters.The aim of these alternatives is to maintain a low mortality rate, a good level of animal yield while preserving environment and consumer health.Among these, the most popular are probiotics, prebiotics, enzymes,organic acids, immunostimulants, bacteriocins, bacteriophages, phytogenic feed additives, phytoncides,nanoparticles and essential oils. | Youcef Mehdi Marie-Pierre Létourneau-Montminy Marie-Lou Gaucher Younes Chorfi Gayatri Suresh Tarek Rouissi Satinder Kaur Brar Caroline Cté Antonio Avalos Ramirez Stéphane Godbout | 2018 | Animal Nutrition2018,,2: | 19 |
| 5 | Characterization and functions of beta defensins in the epididymis显示文摘附睾β - defensins 由重复基因复制和分叉演变编码对病原体提供直接保护并且也在它的主要功能支持男繁殖的道的蛋白质的一个家庭。男道 defensins 也从病原体攻击便于恢复。β - defensins 拥有古老的保存顺序和在多细胞的有机体普遍的结构的特征,在种幸存建议基本角色。首领 SPAG11,二祖先地独立的β - defensin 基因的功能的熔化,生产根据 tissue-specificand 被表示的或者拼接的抄本的一个大家庭种类特定的限制。SPAG11 的复杂性在哺乳动物的进化的不同分支变化。有主人蛋白质的人的 SPAG11D 的相互作用在多重发信号的小径显示参与。 | Susan H. Hall Suresh Yenugu Yashwanth Radhakrishnan Maria Christina W. Avellar Peter Petrusz Frank S. French | 2007 | Asian Journal of Andrology2007,9,4: | 18 |
| 6 | Systemic treatment strategies for triple-negative breast cancer显示文摘Triple-negative breast cancer(TNBC) is defined by the lack of immunohistochemical expression of the estrogen and progesterone receptors and human epidermal growth factor receptor 2(EGFR2). Most TNBC has a basal-like molecular phenotype by gene expression profiling and shares clinical and pathological features with hereditary BRCA1 related breast cancers. This review evaluates the activity of available chemotherapy and targeted agents in TNBC. A systematic review of PubM ed and conference databases was carried out to identify randomised clinical trials reporting outcomes in women with TNBC treated with chemotherapy and targeted agents. Our review identified TNBC studies of chemotherapy and targeted agents with different mechanisms of action, including induction of synthetic lethality and inhibition of angiogenesis, growth and survival pathways. TNBC is sensitive to taxanes and anthracyclins. Platinum agents are effective in TNBC patients with BRCA1 mutation, either alone or in combination with poly adenosine diphosphate polymerase 1 inhibitors. Combinations of ixabepilone and capecitabine have added to progression-free survival(PFS) without survival benefit in metastatic TNBC. Antiangiogenic agents, tyrosine kinase inhibitors and EGFR inhibitorsin combination with chemotherapy produced only modest gains in PFS and had little impact on survival. TNBC subgroups respond differentially to specific targeted agents. In future, the treatment needs to be tailored for a specific patient, depending on the molecular characteristics of their malignancy. TNBC being a chemosensitive entity, combination with targeted agents have not produced substantial improvements in outcomes. Appropriate patient selection with rationale combinations of targeted agents is needed for success. | Budhi Singh Yadav Suresh C Sharma Priyanka Chanana Swaty Jhamb | 2014 | World Journal of Clinical Oncology2014,5,2: | 18 |
| 7 | Risk factors for ventilator-associated pneumonia in trauma patients:A descriptive analysis显示文摘BACKGROUND:We sought to evaluate the risk factors for developing ventilator-associated pneumonia(VAP)and whether the location of intubation posed a risk in trauma patients.METHODS:Data were retrospectively reviewed for adult trauma patients requiring intubation for>48 hours,admitted between 2010 and 2013.Patients’demographics,clinical presentations and outcomes were compared according to intubation location(prehospital intubation[PHI]vs.trauma room[TRI])and presence vs.absence of VAP.Multivariate regression analysis was performed to identify predictors of VAP.RESULTS:Of 471 intubated patients,332 patients met the inclusion criteria(124 had PHI and208 had TRI)with a mean age of 30.7±14.8 years.PHI group had lower GCS(P=0.001),respiratory rate(P=0.001),and higher frequency of head(P=0.02)and chest injuries(P=0.04).The rate of VAP in PHI group was comparable to the TRI group(P=0.60).Patients who developed VAP were 6 years older,had significantly lower GCS and higher ISS,head AIS,and higher rates of polytrauma.The overall mortality was 7.5%,and was not associated with intubation location or pneumonia rates.In the early-VAP group,gram-positive pathogens were more common,while gram-negative microorganisms were more frequently encountered in the late VAP group.Logistic regression analysis and modeling showed that the impact of the location of intubation in predicting the risk of VAP appeared only when chest injury was included in the models.CONCLUSION:In trauma,the risk of developing VAP is multifactorial.However,the location of intubation and presence of chest injury could play an important role. | Suresh Kumar Arumugam Insolvisagan Mudali Gustav Strandvik Ayman El-Menyar Ammar Al-Hassani Hassan Al-Thani1 | 2018 | World Journal of Emergency Medicine2018,9,3: | 17 |
| 8 | 海枣核CO_2活化和磷酸活化制备活性炭及其结构、吸附性能(英文)显示文摘由于具有很大的吸附容量,多孔炭材料是优良的吸附剂。笔者试图比较海枣核分别经CO2活化和磷酸活化所制活性炭的结构和吸附性能。活化过程和工艺条件对炭的物理化学性质影响较大,根据文献报道的结果选取了优化的工艺参数。基于氮气吸附等温线、SEM、FT-IR等分析结果,评估了活性炭的结构特征,吸附性能则由亚甲蓝吸附值表示。CO2活化得到了微孔活性炭,产率为44%、BET比表面积是666 m2·g-1;磷酸活化得到了产率为14.8%的中孔活性炭,BET比表面积为725 m2·g-1。CO2活化活性炭的平均孔径是1.51 nm,磷酸活化活性炭的则为2.91 nm。活性炭的亚甲蓝吸附等温线分别用Langmuir等温线和Freundlich等温线进行了验证,在优化工艺条件下制备的CO2活化炭和磷酸活化炭的亚甲蓝w单分子吸附容量分别为110 mg·g-1和345 mg·g-1。然而,磷酸活化产生的亚甲蓝吸附值最高达455 mg·g-1。 | K. Suresh Kumar Reddy Ahmed Al Shoaibi C. Srinivasakannan | 2012 | 新型炭材料2012,27,5: | 14 |
| 9 | Activation of Defense Response Pathways by OGs and Fig22 Elicitors in Arabidopsis Seedlings显示文摘 | Carine Denoux Roberta Galletti Nicole Mammarella Suresh Gopalan Danièle Werck Giulia De Lorenzo Simone Ferrari Frederick M. Ausubel Julia Dewdney | 2008 | Molecular Plant2008,1,3: | 13 |
| 10 | International consensus guidelines 2012 for the management of IPMN and MCN of the pancreas显示文摘 | Masao Tanaka Carlos Fernández-del Castillo Volkan Adsay Suresh Chari Massimo Falconi Jin-Young Jang Wataru Kimura Philippe Levy Martha Bishop Pitman C. Max Schmidt Michio Shimizu Christopher L. Wolfgang Koji Yamaguchi Kenji Yamao | 2012 | Pancreatology2012,,3: | 13 |
| 11 | Heat Transfer and Friction Factor Studies in a Circular Tube Fitted with Twisted Tape Consisting of Wire-nails显示文摘This paper deals with the experimental investigation on Nusselt number,friction factor and thermal en-hancement factor of a double pipe heat exchanger equipped with twisted tape consisting wire nails(WN-TT) and plain twisted tapes(P-TT) with three different twist ratios of y 2.0,4.4 and 6.0. Test runs are conducted using the water as the working fluid with Reynolds number range between 2000 and 12000 for WN-TT and P-TT. It is found that Nusselt number,friction factor and thermal enhancement factor in the tube equipped with WN-TT appreciably higher than those in the tube fitted with P-TT and plain tube. Over the range considered Nusselt number,friction factor and thermal enhancement factor in a tube with WN-TT are respectively,1.08 to 1.31,1.1 to 1.75 and 1.05 to 1.13 times of those in tube with P-TT. The better performance of WN-TT is due to combined effects of the follow-ing factors:(1) common swirling flow generated by P-TT,(2) additional turbulence offered by the wire nails. Em-pirical correlations for Nusselt number,friction factor and thermal enhancement factor are also formulated from the experimental results of WN-TT and P-TT. | P. Murugesan K. Mayilsamy S. Suresh | 2010 | Chinese Journal of Chemical Engineering2010,18,6: | 13 |
| 12 | A SURVEY OF STACKELBERG DIFFERENTIAL GAME MODELS IN SUPPLY AND MARKETING CHANNELS显示文摘Stackelberg differential game models have been used to study sequential decision making in noncooperative games in diverse fields.In this paper,we survey recent applications of Stackelberg differential game models to the supply chain management and marketing channels literatures.A common feature of these applications is the specification of the game structure:a decentralized channel composed of a manufacturer and independent retailers,and a sequential decision procedure with demand and supply dynamics and coordination issues.In supply chain management,Stackelberg differential games have been used to investigate inventory issues,wholesale and retail pricing strategies,and outsourcing in dynamic environments.The underlying demand typically has growth dynamics or seasonal variation.In marketing,Stackelberg differential games have been used to model cooperative advertising programs,store brand and national brand advertising strategies,shelf space allocation,and pricing and advertising decisions.The demand dynamics are usually extensions of the classical advertising capital models or sales-advertising response models.We begin by explaining the Stackelberg differential game solution methodology and then provide a description of the models and results reported in the literature. | Xiuli HE Ashutosh PRASAD Suresh P. SETHI Genaro J. GUTIERREZ | 2007 | Journal of Systems Science and Systems Engineering2007,16,4: | 12 |
| 13 | Endocrine disruptors and estrogenic effects on male reproductive axis显示文摘内分泌的 disrupt ors (例如, polychlorinated 联本基[印刷电路板] , dichlorodiphenyl-trichloroethane [DDT ] ,戴奥辛,和一些杀虫剂) 是像雌激素的并且在环境的 anti-androgenic 化学药品。他们模仿自然荷尔蒙,禁止荷尔蒙的行动,或改变内分泌系统的正常规章的功能并且有引起不孕的男繁殖的轴上的潜在的危险效果。尽管阴囊并且前列腺癌症,反常性开发,波形的 scended 睾丸,慢性炎, Sertoli-cell-only,模式,尿道下裂,改变的垂体和甲状腺腺函数也被观察,可得到的数据是不够的推出世界范围的结论。intra 细胞质的精子注射(ICSI ) 的发展在疑问以外是在男不孕的治疗的最重要的最近的突破,但是它未必确实对待原因并且可以无意中传递不利基因后果。在生理学,生物化学,和雄性生殖系统的分子、细胞的生物学的许多控制得好的临床的研究和基本科学发现在人的更大的数字的鉴定帮助了解决男因素问题。为 Y 染色体删除的察觉的更新的工具进一步加强了处于男繁殖健康和富饶的衰落可能与在环境的某些有毒的化学药品的存在有关的假设。因此,男因素不孕的病原学,诊断,和治疗仍然是真实挑战。临床医生们应该总是试图识别可能的阴囊的毒性的病原学,估计风险的度到为不孕被评估的病人,并且开始一个计划一旦在职业 / 有毒物和不孕之间的一个协会被建立了,控制并且阻止到其它的暴露。 | Suresh C. Sikka Run Wang | 2008 | Asian Journal of Andrology2008,10,1: | 12 |
| 14 | Calcium signaling and T-type calcium channels in cancer cell cycling显示文摘Regulation of intracellular calcium is an important signaling mechanism for cell proliferation in both normal and cancerous cells. In normal epithelial cells, free calcium concentration is essential for cells to enter and accomplish the S phase and the M phase of the cell cycle. In contrast, cancerous cells can pass these phases of the cell cycle with much lower cytoplasmic free calcium concentrations, indicating an alternative mechanism has developed for fulfilling the intracellular calcium requirement for an increased rate of DNA synthesis and mitosis of fast replicating cancerous cells. The detailed mechanism underlying the altered calcium loading pathway remains unclear; however, there is a growing body of evidence that suggests the T-type Ca2+ channel is abnormally expressed in cancerous cells and that blockade of these channels may reduce cell proliferation in addition to inducing apoptosis. Recent studies also show that the expression of T-type Ca2+ channels in breast cancer cells is proliferation state dependent, i.e. the channels are expressed at higher levels during the fast-replication period, and once the cells are in a non-proliferation state, expression of this channel isminimal. Therefore, selectively blocking calcium entry into cancerous cells may be a valuable approach for preventing tumor growth. Since T-type Ca2+ channels are not expressed in epithelial cells, selective T-type Ca2+ channel blockers may be useful in the treatment of certain types of cancers. | James T Taylor Xiang-Bin Zeng Jonathan E Pottle Kevin Lee Alun R Wang Stephenie G Yi lennifer A S Scruggs Suresh S Sikka Ming Li | 2008 | World Journal of Gastroenterology2008,14,32: | 12 |
| 15 | Intralesional steroid injection therapy in the management of resistant gastrointestinal strictures显示文摘Esophageal strictures are a problem frequently encountered by gastroenterologists. Dilation has been the customary treatment for benign esophageal strictures, and dilation techniques have advanced over the years. Depending on their characteristics and the response to treatment, esophageal strictures can be classified into two types: 1, simple (Schatzki rings, webs, peptic injury, and following sclerotherapy) - these are easily amenable to dilation, with a low recurrence rate after initial treatment; and 2, complex (caused by caustic ingestion, radiation injury, anastomotic strictures, and photodynamic therapy) - these are difficult to dilate and are associated with higher recurrence rates. Refractory strictures are those in which it is not possible to relieve the anatomic restriction successfully up to a diameter of 14 mm over five sessions at 2-weekly in- tervals, due to cicatricial luminal compromise or fibrosis; and recurrent strictures are those in which it is not possible to maintain a satisfactory luminal diameter for 4 wk once the target diameter of 14 mm has been achieved. There are no standard recommendations for the management of refractory strictures. The various techniques used include intralesional steroid injectioncombined with dilation; endoscopic incisional therapy, with or without dilation; placement of self-expanding metal stents, Polyflex stents, or biodegradable stents; self-bougienage; and endoscopic surgery. This review discusses the indications, technique, results, and complications of the use of intralesional steroid injections combined with dilation and endoscopic incisional therapy with dilation in refractory strictures. | Rakesh Kochhar Kuchhangi Suresh Poornachandra | 2010 | World Journal of Gastrointestinal Endoscopy2010,2,2: | 11 |
| 16 | Seminal characteristics and sexual behavior in men of different age groups: is there an aging effect?显示文摘瞄准:估计精液的特征以及各种各样的年龄组的人的性行为在那些特征上建立变老的效果的存在。方法:精液样品从人被收集(n = 792 ) 仅仅在女因素不孕的情况下经历在试管内授精或子宫内的授精。样品在交际用一台精液的收集设备被收集并且根据世界卫生组织手工地评估了() 标准。人们根据他们的年龄被划分成四个组:(i) 20-30,(i i ) 31-40,(iii ) 41-50 并且(iv ) 到一张性行为问询表的 51-60 年,和他们的精液的特征和回答被比较。结果:数据统计上在测试的精液的特征显示出有效差量最尤其是在精子集中,活动性,活动性的等级,低亚硫酸钠渗透的胀大和正常精子形态学。而且,当使用严格的标准时,在有年龄的正常精子形态学的衰落是更显著的而非标准。也在全部的精子计数有差别,总计能动精子并且总计功能的精子部分(估计了由并且严格的标准) 。有效差量也以他们一直在试试到 conceive,性频率和性满足的年的数字在老人在性行为范型被观察。结论:数据当他们变老,清楚地在人在精液特征和性行为上说明变老的效果。当在构画出由的平淡的精液分析为精液特征建议正常的标准值时,变老的效果被考虑,这被建议标准。 | Panayiotis M. Zavos Khalied Kaskar Juan R. Correa Suresh C. Sikka | 2006 | Asian Journal of Andrology2006,8,3: | 10 |
| 17 | Homocysteine mediates transcriptional changes of the inflammatory pathway signature genes in human retinal pigment epithelial cells显示文摘AIM:To test whether homocysteine(Hcy) can influence the transcriptional profile, we hypothesized that Hcy can lead to the induction of proinflammatory molecules in the retinal cells of aging people.METHODS:An unbiased in vitro inflammatory pathway focused study was designed employing retinal pigment epithelial(RPE) cell line, ARPE-19. Cells were cultured in the presence or absence of Hcy to capture target genes' expression profile. Three different concentrations of Hcy were added in the culture medium of confluent monolayers. c RNAs were made from the isolated total RNAs and the labeled c RNA probes were hybridized to microarrays specific for human disease pathway inflammatory cytokines, chemokines and their receptor gene micro-array panels as per manufacture's recommendations. Two Hcy up-regulated molecules:IL6 and CEBPB were further validated via Western blot analysis. Hcy's effect on ARPE-19 cellular morphology and genomic DNA integrity were also evaluated.RESULTS:Gene microarray analyses of RPE cells in response to Hcy treatment revealed alterations in the expressions of several inflammatory gene transcripts such as CCL5, CEBPB, IL13RA2, IL15 RA, IL6, IL8 and CXCL3 that were up-regulated. The transcripts for C3, CCL2, IL11 RA and IL18 genes exhibited down-regulation. The IL6 and CEBPB expressions were subsequently validated at the protein levels. Treatment of the retinal cells with increasing Hcy concentration influenced their density in culture however their morphology and DNA integrity remained unaffected. CONCLUSION:These findings suggest that Hcy can potentially mediate the expression of chemokines,cytokines and interleukins receptors in the retinal cells without having any debilitating effects on their morphology and the genomic DNA integrity. | Mahavir Singh Suresh C Tyagi | 2017 | International Journal of Ophthalmology(English edition)2017,10,5: | 10 |
| 18 | Hybrid, Optimal, Intelligent and Classical PV MPPT Techniques: A Review显示文摘Renewable energy-based solar photovoltaic(PV)generation is the best alternative for conventional energy sources because of its natural abundance and environment friendly characteristics.Maximum power extraction from the PV system plays a critical role in increasing the efficiency of the solar power generation during partial shading conditions(PSCs).Therefore,a suitable maximum power point tracking(MPPT)technique to track the maximum power point(MPP)is of high need,even under PSCs.This paper presents an organized and concise review of MPPT techniques implemented for the PV systems in literature along with recent publications on various hardware design methodologies.Their classification is done into four categories,i.e.classical,intelligent,optimal,and hybrid depending on the tracking algorithm utilized to track MPP under PSCs.During uniform insolation,classical methods are highly preferred as there is only one peak in the P-V curve.However,under PSCs,the F-V curve exhibits multiple peaks,one global maximum power point(GMPP)and remaining are local maximum power points(LMPP’s).Under the PSCs,classical methods fail to operate at GMPP and hence there is a need for more advanced MPPT techniques.Every MPPT technique has its advantages and limits,but a streamlined MPPT is drafted in numerous parameters like sensors required,hardware implementation,cost viability,tracking speed and tracking efficiency.This study provides the advancement in this area since some parameter comparison is made at the end of every classification,which might be a prominent base-rule for picking the most gainful sort of MPPT for further research. | Ratnakar Babu Bollipo Suresh Mikkili Praveen Kumar Bonthagorla | 2021 | CSEE Journal of Power and Energy Systems2021,7,1: | 10 |
| 19 | Characteristics of MOF, MWCNT and graphene containing materials for hydrogen storage: A review显示文摘Hydrogen is a generally abundant, safe, clean and environmentally apt alternative fuel, which replenishes the void generated by depleting fossil fuel reserves. The adoption of hydrogen as an energy source has been restricted to low levels due to the complications associated with its viable storage and usage. Existing technologies, such as storage of hydrogen in compressed and liquefied forms are not adequate to meet the broad on-board applications. The gravimetric energy density(120 MJ/kg) of hydrogen is three times higher than that of gasoline products, so solid-state hydrogen storage is advantageous.Metal-organic frameworks(MOFs), multi-walled carbon nanotubes(MWCNTs) and graphene are solid adsorbents majorly employed for efficient H_2 storage. The prominent features of MOFs such as permanent porosity, structural rigidity, and surface area are attractive and ideal for hydrogen storage. In addition,nanostructured carbon materials(MWCNTs and graphene) and their composites have demonstrated significant hydrogen storage capacities. Some important parameters for the success of the hydrogen economy include high storage density, adsorption/desorption temperature and cycling time. Cryo-hydrogen storage was achieved in MOFs and their composites with carbon structures, but storage at ambient temperature and acceptable pressures is a major hurdle. This review discusses various strategies and mechanisms in the design of adsorbents explored to improve H_2 storage capacities and afford opportunities to develop new sustainable hydrogen technologies to meet energy targets. | Kranthi Kumar Gangu Suresh Maddila Saratchandra Babu Mukkamala Sreekantha B Jonnalagadda | 2019 | Journal of Energy Chemistry2019,28,3: | 10 |
| 20 | Current updates on laboratory techniques for the diagnosis of male reproductive failure显示文摘导致不孕的男繁殖失败的发生,是否由于推迟的做家长,环境问题,基因因素,药,等等,在全世界正在增加。男 subfertility 的诊断和预后成为了挑战。当基本精液评价被执行许多年了时,很多研究询问传统的精液特征的价值。这是部分由于不适当的方法和标准化,为优秀保证的技术要求的有限知识,和一个精液评价能提供临床的信息的不完全的理解。当前执行精液和内分泌的评价表演伟人可变性的实验室。世界健康组织() 精液的评估的手册是在许多年在这个领域的进一步的开发帮助了的 andrology 和生育力评估的核心。这些包括精液,对精子计数的评价,活动性,活力,形态学,和精子和精液样品的功能的方面的物理外观。这些测试也由于氧化应力包括男内分泌的侧面,精液的生物化学的评估,在浆液的 antisperm 抗体的察觉,电脑辅助的精子分析(房屋) 的使用,精子 DNA 正直,和它的损坏。帮助繁殖技术(例如, IVF, ICSI ) 显示出大成功,但是是太昂贵的。与更新的技术在这块地里推进开发,广泛的火车 / 说明能改进精确性和还原剂可变性,因此维持如此的评估的质量和标准。有迫切需要标准化了训练中心并且为繁殖成功在 mens 健康的这个区域增加了了解。 | Suresh C Sikka Wayne JG Hellstrom | 2016 | Asian Journal of Andrology2016,18,3: | 9 |