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Blockchain.Based Certificateless Cross-Domain.Authen.ication.Scheme in.the In.ustrial In.ern.t of Thin.s

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Computers, Materials an. Con.in.a 2024年第3期80卷 3835-3854页

作者： Li Z. Liu X. Zhan. n. Wei Z. Departmen. of Electron.c an. Commun.cation.En.in.erin. Beijing Electronic Science and Technology Institute Beijing 100070 China

The In.ustrial In.ern.t of Thin.s (IIoT) con.ists of massive devices in.differen. man.gemen. domain., an. the lack of trust amon. cross-domain.en.ities leads to risks of data security an. privacy leakage durin. in.ormation.exchan.e. To address the above challen.es, a viable solution.that combin.s Certificateless Public Key Cryptography (CL-PKC) with blockchain.techn.logy can.be utilized. However, as man. existin. schemes rely on.a sin.le Key Gen.ration.Cen.er (KGC), they are pron. to problems such as sin.le poin.s of failure an. high computation.l overhead. In.this case, this paper proposes a n.vel blockchain.based certificateless cross-domain.authen.ication.scheme, that in.egrates the threshold secret sharin. mechan.sm without a trusted cen.er, mean.hile, adopts blockchain.techn.logy to en.ble cross-domain.en.ities to authen.icate with each other an. to n.gotiate session.keys securely. This scheme also supports the dyn.mic join.n. an. removin. of multiple KGCs, en.urin. secure an. efficien. cross-domain.authen.ication.an. key n.gotiation. Comparative an.lysis with other protocols demon.trates that the proposed cross-domain.authen.ication.protocol can.achieve high security with relatively low computation.l overhead. Moreover, this paper evaluates the scheme based on.Hyperledger Fabric blockchain.en.iron.en. an. simulates the performan.e of the certificateless scheme un.er differen. threshold parameters, an. the simulation.results show that the scheme has high performan.e. Copyright © 2024 The Authors. Published by Tech Scien.e Press.

关键词： blockchain certificateless cross-domain.authen.ication IIoT

Gen.tic variability an. trait association.an.lysis in.lin.eed (Lin.m usitatissimum L.) for yield an. related traits

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Oil Crop Scien.e 2024年第3期9卷 151-159页

作者： Yadav S.K. Sin.h n. Yadav H.K. CSIR- n.tion.l Botan.cal Research In.titute Rana Pratap Marg Lucknow 226001 UP India Academy of Scien.ific an. In.ovative Research (AcSIR) Ghaziabad 201002 India

Diversity in.ormation.min.n. about a crop for differen. attributes is an.essen.ial step for effective breedin. programs. The presen. in.estigation.evaluates the quan.um of gen.tic variability an. determin.s the relation.hip amon. the importan. agro-econ.mic traits based on.two years of phen.typic data of 210 accession. of lin.eed. The traits, capsule weight per plan., capsule per plan., husk weight per plan., an. seed weight per plan. exhibited comparatively higher gen.tic coefficien. of variation.(GCV) an. phen.typic coefficien. of variation.(PCV). In.con.rast, oil con.en. an. seed per capsule exhibited a lower value. The high magn.tude of broad sen.e heritability was observed for all traits except seeds per capsule an. husk weight per plan.. The trait, capsules per plan., plan. height, an. days to 50% flowerin. showed high gen.tic advan.e coupled with high heritability. Hierarchical cluster an.lysis grouped 210 accession. in.o six distin.t clusters. Out of 210, 144 (68.57%) accession. were grouped in.o three clusters (I, II, an. III), in.which cluster-III was the largest, con.ain.n. 64 accession. followed by cluster II an. cluster-I. The highest in.er-cluster distan.e was observed between.clusters-I an. V (127.85), while the lowest was between.clusters-II an. IV (27.09). The positive correlation.of capsule weight per plan. with the seed weight per plan. an. a n.gative correlation.with the days to 50% flowerin. in.icates that high yieldin. lin.eed varieties with early flowerin./maturity could be developed through direct an. in.irect selection. Further, seed yield an. oil con.en. could be en.an.ed together as in.icated by ghe positive association.amon. these two importan. traits. In.this study, high yieldin. accession. with moderate to high oil con.en. such as GP36, GP31, GP14, GP54, GP26, GP24, GP34, GP21, GP37 an. GP27 an. early flowerin. (less than.70 days) accession. such as GP2, GP26, GP27, CG33, CG44, CG42, CG132, an. CG31 iden.ified as poten.ial gen.tic mater

关键词： Den.rogram Gen.tic advan.e Gen.tic variability Heritability Lin.eed PCA

n.merical An.lysis on.the Effect of n.Si on.Cu(In. Ga)Se₂ Based Thin.Films for High-Performan.e Solar Cells by 1D-SCAPS

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Open.Journ.l of Applied Scien.es 2024年第5期14卷 1315-1329页

作者： Rasika n. Mohottige Micheal Farn.ale Gary S. Coombs Shahn.za Saburhhojayeva Departmen. of n.tural Scien.es Waldorf University Forest City IA USA

We report the performan.es of a chalcopyrite Cu(In. Ga)Se2 CIGS-based thin.film solar cell with a n.wly employed high con.uctive n.Si layer. The data an.lysis was performed with the help of the 1D-Solar Cell Capacitan.e Simulator (1D-SCAPS) software program. The n.w device structure is based on.the CIGS layer as the absorber layer, n.Si as the high con.uctive layer, i-In.sub>2S3, an. i-Zn. as the buffer an. win.ow layers, respectively. The optimum CIGS ban.gap was determin.d first an. used to simulate an. an.lyze the cell performan.e throughout the experimen.. This an.lysis revealed that the absorber layer’s optimum ban.gap value has to be 1.4 eV to achieve maximum efficien.y of 22.57%. Subsequen.ly, output solar cell parameters were an.lyzed as a fun.tion.of CIGS layer thickn.ss, defect den.ity, an. the operatin. temperature with an.optimized n.Si layer. The n.wly modeled device has a p-CIGS/n.Si/In.sub>2S3/Al-Zn. structure. The main.objective was to improve the overall cell performan.e while optimizin. the thickn.ss of absorber layers, defect den.ity, ban.gap, an. operatin. temperature with the n.wly employed optimized n.Si layer. The in.rease of absorber layer thickn.ss from 0.2 - 2 µm showed an.upward tren. in.the cell’s performan.e, while the in.rease of defect den.ity an. operatin. temperature showed a down.ard tren. in.solar cell performan.e. This study illustrates that the proposed cell structure shows higher cell performan.es an. can.be fabricated on.the lab-scale an. in.ustrial levels.

关键词： n.Si p-CIGS 1D-SCAPS Thin.Films In.S3

Evaluation.of crustal deformation.an. associated stron. motion. in.uced by the 2022 Paktika earthquake, Afghan.stan

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Earthquake Scien.e 2024年第6期37卷 546-557页

作者： Jahed A.B. Aydan.Ö. Ito T. Iwata n. Un.versity of Ryukyus Okinawa 903-0213 Japan Chuden.En.in.erin. Con.ultan.s Hiroshima 734-8510 Japan

The 2022 Paktika earthquake (momen. magn.tude: 6.2) occurred on.Jun. 22, 2022, n.ar the border between.the Khost an. Paktika Provin.es of Afghan.stan. causin. heavy damage an. casualties in.Paktika Provin.e. This study evaluated the crustal deformation.an. associated stron. motion. in.uced by the Paktika earthquake. Crustal deformation. were determin.d usin. the Differen.ial In.erferometric Syn.hetic Aperture Radar (DIn.AR) techn.que an. three-dimen.ion.l fin.te elemen. method (3D-FEM) an. the results were compared. The perman.n. groun. displacemen.s obtain.d from the DIn.AR an. 3D-FEM an.lyses were similar in.terms of amplitude an. areal distribution. Stron. motion. were estimated usin. the 3D-FEM with an. without con.iderin. region.l topography. The estimation. of maximum groun. acceleration. velocity, an. perman.n. groun. deformation. were compared amon. each other as well as with those in.erred from failures of some simple structures in.the Spera an. Gayan.districts. The in.erred maximum groun. acceleration.an. velocity from the failed adobe structures were more than.300 Gal an. 50 cm/s, respectively, n.arly con.isten. with the estimates obtain.d usin. empirical methods. The empirical method yielded a maximum groun. acceleration.of 347 Gal, whereas the maximum groun. velocity was approximately 50 cm/s. In.light of these fin.in.s, some surface expression. of crustal deformation. an. stron. groun. motion., such as failures of soil an. rock slopes an. rockfalls, have been.presen.ed. The rock slope failures in.the epicen.ral area were con.isten. with those observed durin. various earthquakes in.Afghan.stan.an. worldwide. © 2024 The Authors

关键词： Afghan.stan fault rupture FEM Paktika earthquake rockfall SAR slope surface deformation

Life Origin.in.the Milky Way Galaxy: II. Scan.in. for Habitable Stellar Systems on.Behalf of Future Space Mission.

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Journ.l of High En.rgy Physics, Gravitation.an. Cosmology 2024年第2期10卷 681-692页

作者： Alexan.er n. Safron.v Obukhov In.titute of Atmospheric Physics Russian Academy of Sciences Moscow Russia

The possibility of the life origin.in.the stellar systems, located at a distan.e of ~200 pc from the solar system, was in.estigated. The stars, in.the spectrums of which C (carbon., O (oxygen., n.(n.trogen., an. P (phosphorus) are foun., are called Dn.-stars. Based on.stellar abun.an.es a n.w method for searchin. for habitable exoplan.ts has been.developed an. a list of 48 Dn.-stars in.the solar n.ighborhood, on.which life is possible, has been.defin.d. The quota of Dn.-stars is equal 1.3% of the total amoun. of Hypatia Stellar Catalog. On.y three Dn.-stars out of selected 48 stars belon. to the spectral class as our Sun.(G2V). The closest to the solar system is the Dn.-star with the n.mber HIP 15510, which belon.s to the G8V class an. is 6 pc away from the solar system. n.n. Dn.-stars, which have the highest chemical similarity with solar spectrum, were iden.ified. It is iden.ified that on. of these n.n. stars, HIP 24681, has six plan.ts.

关键词： In.erstellar Mission Stellar Abun.an.e Habitability Hypatia Stellar Catalog Dn.-Star