Testing the distance-sum-rule in strong lensing systems provides an interesting method to determine curvature parameter $\Omega_k$ using more local objects. In this paper, we apply a quite recent data set of combination with intermediate-luminosity quasars calibrated as standard rulers. framework three types lens models extensively used studies (SIS model, power-law spherical and extended model), show that assumed model has considerable impact on cosmic constraint, which is found be...

The insecticidal and repellent activities of the essential oil extracted from Zingiber purpureum Roscoe rhizomes were evaluated against Tribolium castaneum (Herbst) Lasioderma serricorne (L.) adults. During our screening program for agrochemicals Chinese medicinal herbs wild plants, Z. was found to possess strong contact toxicity T. L. adults, with LD50 values 39.0 16.3 µg per adult, respectively, also showed fumigant two grain storage insects LC50 13.6 9.3 mg/liter air, respectively....

Artemisia argyi Lévl. et Van., a perennial herb with strong volatile odor, is widely distrbuted in the world. Essential oil obtained from was analyzed by gas chromatography-mass spectrometry (GC-MS). A total of 32 components representing 91.74% were identified and main compounds found to be eucalyptol (22.03%), β-pinene (14.53%), β-caryophyllene (9.24%) (-)-camphor (5.45%). With further isolation, four active constituents essential as eucalyptol, β-pinene, camphor. The isolated exhibited...

The essential oil obtained by hydrodistillation from Alpinia kwangsiensis rhizomes was investigated GC-MS. A total of 31 components representing 92.45% the were identified and main compounds in found to be camphor (17.59%), eucalyptol (15.16%), β-pinene (11.15%) α-pinene (10.50%). These four subsequently isolated exhibited potent insecticidal activity against Lasioderma serricorne adults. During assay, it shown that both potential contact (LD50 = 24.59 μg/adult) fumigant (LC50 9.91 mg/L air)...

In this paper, we propose a new parametrization for Om(z) diagnostics and show how the most recent significantly improved observations concerning H(z) SN Ia measurements can be used to probe consistency or tension between ΛCDM model observations. Our results demonstrate that H0 plays very important role in test of with data. Adopting Hubble constant priors from Planck 2013 Riess, one finds considerable current data confirms conclusions obtained previously by others. However, prior taken...

Artemisia stolonifera, a perennial herb, is widely distrbuted in China. The aim of this study was to analyze the essential oil from aerial parts as well evaluate bioactivity and its main constituents. analyzed by gas chromatography-flame ionization detector chromatography-mass spectrometry that allowed characterizing 22 compounds. components were eucalyptol (32.93%), β-pinene (8.18%), camphor (6.12%) terpinen-4-ol (6.11%), obtained after further isolation. During contact toxicity tests,...

The contact toxicity and repellent activities of the essential oil extracted from rhizomes Zingiber zerumbet (L.) Smith (Zingiberaceae) was evaluated against cigarette beetles (Lasioderma serricorne). obtained by hydrodistillation investigated GC-FID GC-MS. main constituents were zerumbone (40.2%), α-caryophyllene (8.6%), humulene epoxide II (7.3%), camphene (5.9%) fenchene (4.7%). Zerumbone its analogues totally are accounting for 60.3% oil. It found that possessed L. serricorne adults with...

In order to find and develop new botanical pesticides against tobacco storage pests, bioactivity screening was performed. The essential oil obtained from the aerial parts of Liriope muscari investigated by GC/MS GC/FID. A total 14 components representing 96.12% were identified main compounds in found be methyl eugenol (42.15%) safrole (17.15%), followed myristicin (14.18%) 3,5-dimethoxytoluene (10.60%). After screening, exhibit potential insecticidal activity. progress assay, it showed that...

Abstract Four‐switch Buck‐Boost (FSBB) converter usually adopts multi‐mode control methods in applications requiring both voltage step‐up and step‐down. Model predictive current (MPCC) can improve the dynamic performance simplify switching control, but parameter mismatch will deteriorate its performances. To this end, theoretical steady‐state error of MPCC caused by is derived; influence on performances analyzed. Further, an improved strategy with disturbance observer (PDO) adjustment block...

During our screening program for agrochemicals from Chinese medicinal herbs and wild plants, the essential oils of Evodia calcicola trichotoma leaves were found to possess strong repellency against red flour beetle Tribolium castaneum adults, cigarette Lasioderma serricorne adults booklouse Liposcelis bostrychophila. The two obtained by hydrodistillation investigated GC-MS. main components E. oil identified be (-)-β-pinene (44.02%), β-phellandrene (20.93%), ocimene (16.49%), D-limonene...

To develop natural product resources to control cigarette beetles (Lasioderma serricorne), the essential oil from Artemisia lavandulaefolia (Compositae) was investigated. Oil extracted by hydrodistillation of above-ground portion A. and analyzed using gas chromatography-mass spectrometer (GC-MS). Extracted three compounds isolated were then evaluated in laboratory assays determine fumigant, contact, repellent efficacy against stored-products' pest, L. serricorne. The bioactive constituents...

In this paper, by taking de Sitter space-time as a thermodynamic system, we study the effective quantities of black holes in massive gravity, and furthermore obtain space-time.Our results show that entropy type takes same form Reissner-Nordström-de space-time, which lays solid foundation for deeply understanding universal characteristics future.Moreover, our analysis indicates relevant parameters play very important role investigation stability evolution space-time.

Cosmological applications of HII galaxies (HIIGx) and giant extragalactic regions (GEHR) to construct the Hubble diagram at higher redshifts require knowledge "$L$--$\sigma$" relation standard candles used. In this paper, we study properties a large sample 156 sources (25 high-$z$ galaxies, 107 local 24 regions) compiled by Terlevich et al.(2015). Using cosmological distances reconstructed through two new cosmology-independent methods, investigate correlation between H$\beta$ emission-line...

The aim of this research was to determine the chemical constituents and toxicities essential oil derived from Alpinia blepharocalyx rhizomes against cigarette beetle, Lasioderma serricorne (Fabricius). Essential A. obtained hydrodistillation investigated by Gas Chromatography-Mass Spectrometry (GC-MS). A total 46 components were identified. principal compounds in camphor (23.13%), sabinene (11.27%), ?-pinene (9.81%) eucalyptol (8.86%) followed camphene (8.05%), sylvestrene (5.61%)...

To study the in vitro effect of herb components on scavenging harmful cigarette smoke such as radicals, polycyclic aromatic hydrocarbons, nitrosamines vitro, and its reducing cytotoxicity smoke.spectrophotometry was used to examine DPPH free superoxide anion radical, hydroxyl results were compared with anti-oxidation ascorbic acid. Fluorescence spectroscopy hydrocarbons. UV spectrophotometry volatile nitrosamines. MTT assay smoke.All showed a certain hydrocarbons nitrosamines, espacially...

This study evaluated the chemical and volatile composition of hawthorn wines fermented with Saccharomyces cerevisiae A3.12 without pulp contact pectase treatment during fermentation. The results indicated that addition was in favor pH decrease clarification. pectase-treated had significantly higher concentrations acetic acid, ethyl octanoate, isoamyl acetate than non-enzyme-treated wines. Furthermore, nonextracted alcohol, phenylethyl lactate, extracted first principal component separated...

The essential oil obtained from Citrus wilsonii Tanaka stem barks with hydrodistillation was investigated by GC-FID and GC-MS. main components of the were identified to be nerol acetate (44.5%), (13.6%), citronellyl propionate (13.5%) α-terpineol (3.6%). Among them, four active constituents, predicted a bioactivity-test, isolated as nerolacetate, nerol, α-terpineol. It found that C. possessed strong repellency (86% 92%, respectively, at 78.6 nL/cm2, after 2 4 h treatment) against Tribolium...

The excessive extraction of river sand has led to significant ecological issues. Moreover, the environmental impact and resource demand cement production have increasingly turned spotlight on sea as a viable alternative due its abundance ease extraction. Concurrently, alkali-activated binders, novel type low-carbon cementitious material, gained attention for their low energy consumption, high durability, effective chloride ion fixation capabilities. However, they are susceptible carbonation....